U.S. patent application number 16/934600 was filed with the patent office on 2020-11-05 for conduit connector for a patient breathing device.
The applicant listed for this patent is Fisher & Paykel Healthcare Limited. Invention is credited to Laurence Gulliver, Charles William Douglas Irving, Michael Paul Ronayne.
Application Number | 20200345997 16/934600 |
Document ID | / |
Family ID | 1000004970015 |
Filed Date | 2020-11-05 |
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United States Patent
Application |
20200345997 |
Kind Code |
A1 |
Gulliver; Laurence ; et
al. |
November 5, 2020 |
CONDUIT CONNECTOR FOR A PATIENT BREATHING DEVICE
Abstract
A connector or connector assembly for attaching a nasal cannula
with a gas delivery hose includes a sensor port for a sensor probe
positioned near an end of a nasal cannula, which can allow the
sensor probe to be placed closer to the patient's nostrils than
previous connector parts allowed. The connector assembly can be
configured to automatically align locking protrusions on a first
component with locking recesses on a second component, where
insertion of the second component within the first component causes
the second component to rotate relative to the first component,
thereby aligning the locking protrusions with associated locking
recesses.
Inventors: |
Gulliver; Laurence;
(Auckland, NZ) ; Ronayne; Michael Paul; (Auckland,
NZ) ; Irving; Charles William Douglas; (Auckland,
NZ) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Fisher & Paykel Healthcare Limited |
Auckland |
|
NZ |
|
|
Family ID: |
1000004970015 |
Appl. No.: |
16/934600 |
Filed: |
July 21, 2020 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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16421382 |
May 23, 2019 |
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16934600 |
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15730553 |
Oct 11, 2017 |
10335583 |
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16421382 |
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14237859 |
Aug 20, 2014 |
9808612 |
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PCT/NZ2012/000142 |
Aug 10, 2012 |
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15730553 |
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61521972 |
Aug 10, 2011 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A61M 2205/3368 20130101;
A61M 2039/1027 20130101; A61M 39/1011 20130101; A61M 16/161
20140204; A61M 16/0816 20130101; A61M 16/0875 20130101; A61M
2205/581 20130101; A61M 2016/1025 20130101; A61M 16/0666 20130101;
A61M 16/085 20140204; A61M 2016/102 20130101; A61M 16/021 20170801;
A61M 2016/103 20130101; A61M 16/0051 20130101; A61M 2205/584
20130101; A61M 16/0833 20140204; A61B 5/082 20130101; A61M 16/0825
20140204; A61M 2205/6045 20130101; A61M 2209/088 20130101; A61M
16/0841 20140204; A61M 2016/0033 20130101; A61M 2039/1044
20130101 |
International
Class: |
A61M 39/10 20060101
A61M039/10; A61M 16/08 20060101 A61M016/08; A61M 16/16 20060101
A61M016/16; A61M 16/06 20060101 A61M016/06; A61M 16/00 20060101
A61M016/00; A61B 5/08 20060101 A61B005/08 |
Claims
1. A connecting adapter configured to releasably connect a patient
interface connector to a gas delivery tube connector by insertion
into each of the patient interface connector and the gas delivery
tube connector, the connecting adapter comprising: a body extending
between a terminal aperture configured to be positioned proximate
the patient interface connector and a source aperture configured to
be positioned proximate the gas delivery tube connector; the body
comprising a cylindrical portion positioned between the terminal
aperture and the source aperture, the cylindrical portion being
configured to be received within the patient interface connector;
two fingers extending away from the source aperture, the two
fingers being spaced apart and narrowing along their length away
from the source aperture, the two fingers comprising locking
recesses that are formed at least on outer surfaces of each of the
two fingers, the locking recesses being configured to lock with
portions of the gas delivery tube connector, the two fingers also
being configured to interact with recesses of the gas delivery tube
connector to align the connecting adapter and the gas delivery tube
connector.
2. The connecting adapter of claim 1, wherein the recesses on the
two fingers comprise openings.
3. The connecting adapter of claim 2, wherein the two fingers are
diametrically opposed from each other.
4. The connecting adapter of claim 3, wherein a ridge is positioned
between the two fingers and the terminal aperture of the body.
5. The connecting adapter of claim 4, wherein the ridge is a
continuous ridge that extends around an outer circumference of the
cylindrical portion of the body.
6. The connecting adapter of claim 5, wherein the two fingers
define a smooth undulation formed by edges of the two fingers.
7. The connecting adapter of claim 1, wherein the connecting
adapter is configured to connect to the patient interface connector
with one axial motion.
8. The connecting adapter of claim 7, wherein the connecting
adapter is configured to connect to the gas delivery tube connector
with one axial motion.
9. The connecting adapter of claim 8, wherein the connecting
adapter is configured to rotate into alignment with the gas
delivery tube connector during the one axial motion.
10. The connecting adapter of claim 1, wherein the connecting
adapter is configured to disconnect from the patient interface
connector with one axial motion.
11. The connecting adapter of claim 10, wherein the connecting
adapter is configured to disconnect from the gas delivery tube
connector with one axial motion.
12. The connecting adapter of claim 1, wherein the connecting
adapter is configured for a friction fit with the patient interface
connector.
13. The connecting adapter of claim 12, wherein the patient
interface is a nasal cannula.
14. A respiratory system connecting adapter configured to
releasably attach a first conduit connector to a second conduit
connector, the respiratory system connecting adaptor comprising a
conduit body, the conduit body comprising a cylindrical portion,
the cylindrical portion defining a source aperture at a first end
and a terminal aperture at a second end, two fingers extending
axially away from the source aperture, the two fingers each
comprising a locking recess formed on an outer surface, the two
fingers each having an arcuate distal end and a wider end adjacent
to the source aperture, and a valley being defined between the two
fingers.
15. The respiratory system connecting adapter of claim 14, wherein
the locking recess is configured to engage with a corresponding
locking tab formed on an interior surface of the second conduit
connector, which second conduit connector forms a portion of a gas
delivery tube, and the cylindrical portion is configured to fit
inside of the first conduit connector, which first conduit
connector forms a portion of a patient interface.
16. The respiratory system connecting adapter of claim 15, wherein
a ring-shaped ridge is positioned between the two fingers and the
terminal aperture.
17. The respiratory system connecting adapter of claim 16, wherein
the ring-shaped ridge is positioned between the source aperture and
the terminal aperture.
18. The respiratory system connecting adapter of claim 17, wherein
the ring-shaped ridge is a continuous circumferentially-extending
ridge.
19. The respiratory system connecting adapter of claim 18, wherein
the two fingers are arcuate when viewed in an axial direction along
a flow path through the cylindrical portion from the source
aperture toward the terminal aperture.
20. The respiratory system connecting adapter of claim 19, wherein
the two fingers and the valley between the two fingers form an
undulating wall that projects axially from the source aperture.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation of U.S. application Ser.
No. 16/421,382, filed May 23, 2019, which is a continuation of U.S.
application Ser. No. 15/730,553, filed Oct. 11, 2017, which is a
continuation of U.S. application Ser. No. 14/237,859, filed Aug.
20, 2014, now U.S. Pat. No. 9,808,612, which is a national phase of
International Application No. PCT/NZ2012/000142, filed Aug. 10,
2012, which claims priority from U.S. Provisional App. No.
61/521,972, filed Aug. 10, 2011. Each of the applications
referenced in this paragraph is incorporated by reference herein in
its entirety.
FIELD OF THE DISCLOSURE
[0002] This disclosure relates to the field of connectors for gas
delivery hoses.
BACKGROUND OF THE DISCLOSURE
[0003] A nasal cannula is a device used to deliver supplemental
oxygen, other gases, or airflow to a patient or person for
treatment or for aiding respiration. Typically, the cannula
includes a plastic tube and a set of two prongs which are placed in
the nostrils. Oxygen or other gases can flow from these prongs.
[0004] The nasal cannula can be connected to an oxygen tank, a
portable oxygen generator, a wall connection in a hospital via a
flowmeter, or other gas source. Nasal cannulas can supply oxygen to
a patient at rates that depend partly on size. For example, infant
or neonatal nasal versions can carry less oxygen and can have
smaller prongs than adult versions. The cannula can be used to
supply oxygenated air, humidified air or other gas mixtures.
SUMMARY OF THE DISCLOSURE
[0005] In some situations, a nasal cannula is used to provide
humidified airflow or oxygen therapy. In order to monitor the
airflow being received by the patient, a sensor probe can be used.
However, the further the distance of the probe from the prongs that
provide air to the nostrils, the greater the potential variance
between the sampled air and the air inhaled by the patient. Thus, a
conduit connector that places the sensor probe in the airflow
closer to the patient can enhance the accuracy of the measurements
taken.
[0006] As a nasal cannula or other breathing device can be
connected to a patient for extended periods of time, the nasal
cannula can generate discomfort for the patient or otherwise begin
to perform sub-optimally. For example, as the patient moves around
in a hospital bed, the nasal cannula tubing can become tangled or
twisted, thereby causing the patient discomfort or limiting the
airflow within the cannula. Thus, a design that facilitates
adjustments of the nasal cannula can provide greater comfort to the
patient or improve performance.
[0007] At times, the nasal cannula or an airflow source may need to
be removed or replaced. If detaching the nasal cannula from the
airflow source is difficult or time consuming, detaching the nasal
cannula may cause significant discomfort for the patient. Further,
in emergencies, a slow or difficult connection mechanism can
potentially place the patient's health in danger. Thus, a conduit
connector that provides a "quick-connect" or "quick-release"
feature that facilitates attachment and detachment of the nasal
cannula from an airflow source, as well as facilitating
interchangeability of components, can provide greater comfort
and/or safety.
[0008] In order to address the issues discussed above, aspects of
the present disclosure include a connector or connector assembly
for attaching a nasal cannula with a gas delivery hose. In an
embodiment, the connector assembly includes a sensor port for a
sensor probe. The sensor port is positioned near an end of a nasal
cannula, towards the patient. In an embodiment, the connector is
configured to allow the sensor to be placed closer to the patient's
nostrils than previous connector parts allowed.
[0009] Aspects of the present disclosure also include a
self-aligning connector assembly configured to automatically align
locking protrusions on a first component with locking recesses on a
second component, wherein insertion of the second component within
the first component causes the second component to rotate relative
to the first component, thereby aligning the locking protrusions
with associated locking recesses. In an embodiment, the connector
is configured to advantageously allow the nasal cannula to rotate
relative to the gas delivery hose. By allowing rotation, the
connector enables a patient or healthcare provider to untangle or
otherwise straighten the hose or the cannula, thereby increasing
patient comfort.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Throughout the drawings, reference numbers may be re-used to
indicate correspondence between referenced elements. The drawings
are provided to illustrate embodiments of the disclosure described
herein and not to limit the scope thereof.
[0011] FIG. 1A illustrates an exploded perspective view of a gas
delivery conduit having a connector embodiment for attaching a
first tube with a second tube, the connector having a source
conduit connector, a terminal conduit connector and a connecting
adapter;
[0012] FIG. 1B illustrates a side view of the connector embodiment
of FIG. 1A;
[0013] FIG. 1C illustrates a perspective view of another connector
embodiment having other embodiments of the source conduit
connector, the terminal conduit connector and the connecting
adapter;
[0014] FIG. 2A illustrates a perspective view of the terminal
aperture side of the source conduit connector of FIG. 1A;
[0015] FIGS. 2B-2G illustrate various views of the source conduit
connector of FIG. 1C;
[0016] FIGS. 3A and 3B illustrate perspective views of the
connecting adapter of FIG. 1A from a source aperture side and a
terminal aperture side, respectively;
[0017] FIGS. 3C-3G illustrate various views of the connecting
adapter of FIG. 1C;
[0018] FIGS. 4A and 4B illustrate a perspective view of a source
aperture side of the terminal conduit connector and a top view of
the terminal conduit connector of FIG. 1A;
[0019] FIGS. 4C-4G illustrate various views of the terminal conduit
connector of FIG. 1C;
[0020] FIGS. 5A-C illustrate a longitudinal cross-sectional view of
the connector of FIG. 1A;
[0021] FIG. 6 illustrates a cross-section taken along across an
axis of FIG. 1B and illustrates the engagement of the connecting
adapter with the source conduit connector;
[0022] FIGS. 7-16 illustrate alternate connector embodiments;
[0023] FIG. 17 illustrates an alternate conduit connector
embodiment; and
[0024] FIGS. 18A-18C illustrate different views of another
alternate conduit connector embodiment;
[0025] FIGS. 19A-19B illustrate an alternate connector adapter
embodiment configured to connect with the source conduit connector
embodiment of FIGS. 20A-20B;
[0026] FIGS. 20A-20B illustrate an alternate source conduit
connector embodiment having an annular ring for attaching to the
alternate connector adapter embodiment of FIGS. 19A-19B;
[0027] FIGS. 21A-D illustrate different views of an embodiment of a
nasal cannula that connects to an airflow source via the various
connector embodiments discussed in the disclosure.
DETAILED DESCRIPTION
[0028] FIGS. 1A and 1B illustrate a perspective view and side view,
respectively, of a gas delivery conduit 100 comprising an
embodiment of a connector 105 for attaching a first tube 110 from a
nasal cannula, face mask, intubation tube or other breathing device
for a patient with a second tube 115 from a respirator, humidifier,
breathing circuit, or other airflow device for providing gas to the
patient. The connector can allow components of the gas delivery
conduit 100 to be connected or disconnected from each other, thus
facilitating disconnection and reconnection of the breathing device
and airflow device with potentially minimal disturbance to the
patient or gas delivery system.
[0029] For example, a patient can receive humidified, oxygenated
and/or pressurized gases through a nasal cannula 110 connected to
the gas delivery tube 115 that in turn is connected to a humidifier
or respirator. For ease of explanation, the following disclosure
refers to embodiments of the connector for connecting a nasal
cannula with a gas delivery tube (e.g., for providing oxygen), but
references to such embodiments are not intended to limit the
disclosure and other embodiments are possible. For example, in
other embodiments, gases are supplied to the patient by alternative
patient interfaces, such as a nasal or full-face mask, or provided
using alternative airflow sources.
[0030] In the illustrated embodiment, the connector 105 includes a
terminal conduit connector 120 for receiving a nasal cannula 110, a
source conduit connector 125 for receiving a gas delivery tube 115
and a connecting adapter 140 for connecting the conduit connectors.
The source conduit connector 125 includes an optional sensor port
130 for receiving a sensor probe 135. In the illustrated
embodiment, the terminal conduit connector 120 and source conduit
connector 125 are releasably connected by the connecting adapter
140. The gas delivery tube 115 is configured to connect with the
source conduit connector 125 and the nasal cannula 110 is
configured to connect with the terminal conduit connector 120,
forming a gas conduit 100 for providing oxygen or other gases to a
patient. Generally, the oxygen flows from the gas delivery tube 115
to the nasal cannula 110. For ease of explanation, apertures of
components of the gas conduit proximal to the gas delivery tube 115
are referred to as source apertures while apertures proximal to the
nasal cannula 110 are referred to as terminal apertures.
[0031] In the illustrated embodiment, a source aperture 145 of the
source conduit connector 125 connects with the gas delivery tube
115, for example, by fitting over and/or around the gas delivery
tube 115 to form a seal. The source conduit connector 125 may be
releasably attached to the gas delivery tube 115 or permanently
attached. In one embodiment, the terminal aperture 150 of the
source conduit connector 125 includes locking tabs 151 and/or
alignment tabs 152 for receiving the connecting adapter 140. In one
embodiment, the locking tabs are configured to lock with locking
recesses 154 formed on fingers 153 of the connecting adapter 140,
thereby forming a releasable seal. In one embodiment, the alignment
tabs 152 are configured to cause the connecting adapter 140 to
rotate within the terminal aperture 150 if the locking tabs are
misaligned with the locking recesses when inserted into the
terminal aperture 150. The alignment tabs cause the connecting
adapter 140 to rotate until the locking tabs and locking recess are
aligned. In an embodiment, the recesses 154 are holes extending
through the fingers 153 and configured to perform the same function
as the recesses 154.
[0032] In one embodiment, the locking tabs are configured to engage
with the locking recesses 154 with an audible click in order to
provide positive feedback that a connection has been fully made.
Such a click can be generated, in one embodiment, when the fingers
153 are biased as they pass over the locking tabs and then generate
a click when the locking recesses 154 snap-fit over the locking
tabs. Audible clicks can also be generated in other ways, such as
when other components engage with each other.
[0033] In the illustrated embodiment, a source aperture 155 of the
terminal conduit connector is configured to receive the connecting
adapter 140 to form a rotatable connection. In one embodiment,
ridges formed within the terminal conduit connector are adapted to
lock with a channel 160 formed on the circumference of the
connecting adapter 140. The terminal conduit connector 120 and
connecting adapter 140 are able to rotate relative to each other by
allowing the ridges to rotate along the channel 160. In one
embodiment, raised edges or collars along a terminal and source
apertures of connecting adapter 140 prevent or inhibit
disconnection of the terminal conduit connector 120 from the
connecting adapter 140.
[0034] The terminal conduit connector 120 can include a terminal
aperture configured to receive a cannula tube of a nasal cannula
110. The terminal aperture 165 can include two openings for
receiving a double conduit cannula tube. Each conduit can connect
to a prong for insertion into a patient's nostril. The nasal
cannula 110 can be releasably attached to the terminal conduit
connector 120 or permanently attached.
[0035] FIG. 1B illustrates a side view of the connector 105. The
source conduit connector 125 is connected to the terminal conduit
connector 120. The sensor probe 135 is connected to the connector
105 via the sensor port 130. Axis 167 illustrates the cross-section
along which FIG. 6 is taken.
[0036] FIG. 1C illustrates a perspective view of another connector
embodiment having other embodiments of the source conduit connector
125, the terminal conduit connector 120 and the connecting adapter
140 (hidden in this view). This embodiment shares many of the
structures and features discussed above with respect to FIG. 1A,
such as the sensor port 130.
[0037] FIG. 2A illustrates a perspective view of the terminal
aperture 150 side of the source conduit connector 125 of FIG. 1A.
In the illustrated embodiment, the source conduit connector 125
includes a substantially cylindrical tube having a terminal
aperture 150 and a source aperture 145 (FIG. 1A). The source
conduit connector 125 can also include an optional sensor port 130
for receiving a sensor probe 135. In FIG. 2A, the sensor port 130
includes a substantially cylindrical tube extending perpendicularly
from the source conduit connector 125. In some embodiments, the
tube is perpendicular to the body of the conduit connector 125. In
some embodiments, the tube is substantially perpendicular but may
be angled by a few degrees (e.g., less than 5, 10, or 15 degrees)
from perpendicular. In some embodiments, the tube is angled by more
than 15 degrees. One or more finger grooves 202 can be formed on
the outside surface of the source conduit connector 125 in order to
provide additional purchase or friction to a user, for example, for
connecting or disconnecting the connector 105 (FIG. 1A) components.
For example, two finger grooves 202 can be placed on opposite sides
of the source conduit connector 125.
[0038] In the illustrated embodiment, the source conduit connector
125 includes locking tabs 151 and alignment tabs 152 for receiving
the connecting adapter 140 (FIG. 1A). In FIG. 2A, two locking tabs
151 are formed on the interior surface of the source conduit
connector 125 and configured to lock with locking recesses formed
on the connecting adapter 140. The locking tabs 151 can be formed
opposite each other.
[0039] In FIG. 2A, the alignment tab 152 is formed by a single,
continuous protrusion or ridge formed on the interior surface of
the source conduit connector 125. In one embodiment, the single
continuous protrusion or ridge alternates from a first distance
toward the terminal aperture 150 of the source conduit connector
125 to a second distance away from the terminal aperture 150. The
continuous protrusion or ridge can form a bowl or saddleback shape,
with alternating valleys 215 and apexes 220. The apexes 220 are
configured to direct fingers of the connecting adapter 140 into the
valleys 215, wherein the locking tabs 151 can lock with locking
recesses on the fingers. For example, the apexes 220 can be sloped
towards the valleys 215, such that the fingers, when inserted into
the source conduit connector 125, are directed by the slope of the
apexes 220 towards the valleys 215.
[0040] In FIG. 2A, the source conduit connector 125 includes an
optional sensor port 130 for receiving a sensor probe 135. In the
illustrated embodiment of FIG. 2A, the sensor port 130 is
positioned near the terminal aperture 150 or substantially adjacent
to the aperture 150. By placing the sensor port 130 close to the
aperture 150, the sensor probe 135 is able to sample gas flow
closer to the patient. Such sampling can provide more accurate
measurement of the condition of the gas flow that the patient
receives. For example, if the sensor probe 135 is positioned
further away from the patient, there may be a greater difference
between the sampled gas flow and the gas flow inhaled by the
patient. Thus, gas flow that appears to be within the patient's
comfort zone (e.g., based on temperature or humidity) may cause
discomfort to the patient as the condition of the measured gas flow
is different from the condition of the inhaled gas flow. In one
example, the airflow source 115 can include a heating element that
warms the air, but as the airflow leaves the source 115, the
temperature of the airflow can cool rapidly. As a result, in one
embodiment, the sensor should be placed as close to the patient as
possible to obtain more accurate results. Similarly, due to
condensation, humidity changes occur very rapidly. Again, the
closer the sensor can be placed to the patient, the more accurate
the sensor measurements will be. As will be apparent, similar
benefits can be obtained without the optional sensor port 130 by
positioning the sensor probe 135 close to the aperture 150 or
towards the patient or nasal cannula 110. For example, this can be
done by replacing the sensor port with an integrated sensor as
described below.
[0041] As illustrated in FIG. 2A, the sensor probe 135 is
positioned into the gas flow within the gas delivery conduit 100 in
order to sample, measure and/or analyze the gas flow. The sensor
probe 135 can include any type of sensor(s), such as, for example,
a temperature sensor, thermistor, flow meter, oxygen (O.sub.2),
carbon dioxide (CO.sub.2), nitric oxide and/or humidity sensor. The
sensor probe 135 can be reusable or disposable and can be
detachable or integrated with a conduit connector. The sensor probe
135 can be connected to a monitoring system having one or more
processors for analyzing measurements and can communicate with the
monitoring system via a cable or wirelessly. The monitoring system
can include a display or other output device (e.g., speaker, alarm
or wireless transmitter) for displaying measurements or generating
an alarm. The sensor probe 135 and/or monitoring system can include
a memory device such as, for example, an electrically erasable
programmable read only memory (EEPROM), erasable programmable read
only memory (EPROM), flash memory, non-volatile memory or the like.
The sensor probe 135 can include a plurality of conductors for
communicating signals to and from its components, including sensing
component conductors and memory device conductors.
[0042] In some embodiments, the sensor port 130 is configured to
accept different types of sensor probes 135, allowing sensor probes
135 to be changed based on the current use. For example, a humidity
sensor can be used during humidity therapies while an oxygen sensor
can be used during oxygen therapies.
[0043] In some embodiments, there may be only a single locking tab
151 or three or more locking tabs 151. In some embodiments, the
alignment tabs 152 can be formed by multiple protrusions or
discontinuous ridges rather than a single continuous protrusion.
For example, two disconnected apexes 220 can be formed on opposite
sides of the interior surface of the source conduit connector 125.
In some embodiments, the source conduit connector 125 can include
either alignment tabs 152 or locking tabs 151.
[0044] FIGS. 2B-2G illustrate various views of the source conduit
connector 125 of FIG. 1C. This embodiment shares many of the
structures and features discussed above with respect the source
conduit connector 125 of FIG. 1A.
[0045] FIG. 2B illustrates a perspective view of the source conduit
connector 125 facing the terminal aperture 150 and showing, formed
on the interior surface, a locking tab 151 and the alignment tab
152.
[0046] FIG. 2C illustrates a side perspective view of the source
conduit connector 125 showing the source aperture 145.
[0047] FIG. 2D illustrates a side view of the source conduit
connector 125 showing the source aperture 145, the terminal
aperture 150, a finger groove 202, and the sensor port 130.
[0048] FIG. 2E illustrates a cross-sectional view of the source
conduit connector 125 taken along the indicated line in FIG. 2D.
FIG. 2E shows the source aperture 145, the terminal aperture 150
and, on the interior surface, the locking tabs 151 and the
alignment tab 152.
[0049] FIG. 2F illustrates a terminal aperture 150 facing view of
the source conduit connector 125 showing the sensor port 130 and,
on the interior surface, the locking tabs 151 and the alignment tab
152.
[0050] FIG. 2G illustrates a sensor port aperture facing view of
the source conduit connector 125 showing the aperture of the sensor
port 130 opening into the body of the source conduit connector 125.
In FIG. 2G, the sensor port 130 is shown substantially adjacent and
perpendicular to the terminal aperture 150, away from the source
aperture 145.
[0051] FIGS. 3A and 3B illustrate perspective views of the
connecting adapter 140 of FIG. 1A from a source aperture 305 side
and a terminal aperture 310 side, respectively. In the illustrated
embodiment, the connecting adapter 140 includes a substantially
cylindrical tube having two locking fingers 153 extending from the
source aperture 305. The locking fingers 153 can be spaced apart to
form an insertion aperture 312 for the sensor probe 135 (FIG. 1A)
to fit between the fingers 153. The insertion aperture 312 can
provide an opening through which a portion of the sensor probe 135
extends into the gas delivery conduit 100, in order to sample
airflow from within the gas delivery conduit 100 (FIG. 1A). The
insertion aperture 312 can also allow the sensor probe 135 to be
positioned closer to the nasal cannula 110 (FIG. 1A), for example,
by allowing the connecting adapter 140 to extend around or over the
sensor probe 135, towards the airflow source 115 (FIG. 1A). In one
embodiment, the insertion aperture 312 allows the sensor probe 135
to be placed closer to the patient while simultaneously allowing a
portion of the connecting adapter 140 to engage with the source
conduit connector 125 (FIG. 1A). For example, without the insertion
aperture 312, the sensor probe 135 may have to be placed past the
ends 314 of the connecting adapter 140, further away from the nasal
cannula 110, which can eliminate, inhibit or reduce some of the
potential benefits discussed above for placing the sensor probe 135
closer to the patient.
[0052] In some embodiments, each locking finger 153 includes a
locking recess 154 formed on the outer surface of the locking
finger 153. In one embodiment, the locking recesses 154 are
configured to lock with the locking tabs of the source conduit
connector 125. In some embodiments, the locking fingers 153 include
a flexible or semi-rigid material such that sufficient longitudinal
force can cause the locking recesses 154 to pass over locking tabs
151 of the source conduit connector 125, thereby releasing the
connecting adapter 140 from the source conduit connector 125. For
example, pushing the connecting adapter 140 into the source conduit
connector 125 (on assembly or connection) or pulling out the
adapter 140 (on disconnection) can cause the locking tabs of the
source conduit connector 125 to engage or disengage with the
locking recesses 154 of the locking finger 153.
[0053] The connecting adapter 140 can include a locking channel 160
formed along the circumference of its external surface. In FIG. 3A,
the edges of the channel are bounded by collars 320, 325 at the
source and terminal apertures. Ridges, such as on the terminal
conduit connector 120 (FIG. 1A), can lock into the channel 160. For
example, pushing the connecting adapter 140 into the terminal
conduit connector 120 (on assembly or connection) or pulling out
the adapter 140 (on disconnection) can cause the ridges of the
terminal conduit connector 120 to engage or disengage with the
locking channel 160. The collars can prevent or inhibit
disconnection of the ridges due to longitudinal force (e.g., force
along the conduit 100 axis), while allowing the ridges to rotate
along the locking channel 160. In some embodiments, the terminal
collar 320 includes a flexible or semi-rigid material such that
sufficient longitudinal force can cause the ridges to pass over the
collar 320 and cause the connecting adapter 140 to release from the
terminal conduit connector 120.
[0054] The connecting adapter 140 can have one or more optional
spines 330 formed longitudinally on its interior surface. The
spines 330 can provide rigidity to the connecting adapter and, in
one embodiment, are spaced evenly along the interior circumference
of the connecting adapter 140. In one embodiment, the spines 330
are tapered and can provide greater rigidity on one end compared to
the other. For example, the source aperture 305 side of the
connecting adapter 140 may need greater flexibility in order to
attach and/or detach with the source conduit connector 125 and the
spines 330 can taper (in height or width) towards the source
aperture 305.
[0055] In some embodiments, the connecting adapter 140 can have
one, two, three, four or more locking fingers 153 or spines 330. In
some embodiments, other types of connection mechanisms can be used,
such as, for example, a threaded mechanism, pinion mechanism,
friction fit, circlip and/or adhesive or other chemical
connector.
[0056] In some embodiments, different types of connecting adapters
can be provided for connecting different types of conduit
connectors. For example, a respirator conduit can have a different
type of source conduit connector than a humidifier conduit. By
changing the connecting adapter, the same nasal cannula can be
connected to either the respirator conduit or the humidifier
conduit. By providing interchangeable connecting adapters, the
nasal cannula does not have to be changed, thereby minimizing
patient discomfort by eliminating or reducing the need to replace
the nasal cannula attached to the patient. Likewise, different
types of terminal conduit connectors can be connected to the same
type of source conduit connector by changing adapters. For example,
the nasal cannula can be replaced with a face mask having a
different terminal conduit connector type by attaching it to the
same humidifier by using a different connecting adapter. The
interchangeability of the connectors can potentially speed up the
setup of gas delivery conduits, which can be particularly
beneficial in emergency situations.
[0057] FIGS. 3C-3G illustrate various views of the connecting
adapter 140 of FIG. 1C. This embodiment shares many of the
structures and features discussed above with respect the connecting
adapter 125 of FIG. 1A.
[0058] FIG. 3C illustrates a top view of the connecting adapter 140
showing two locking fingers 153 extending from the body of the
connecting adapter 140 and two locking recesses 154 formed on the
exterior surface of the locking fingers 154. In some embodiments,
raised strips 350 form the bottom boundary of the recesses 154 on
the respective locking fingers 153. Each raised strip 350 can
provide additional support and/or rigidity to each locking recess
350, allowing a more secure connection of the locking recesses with
the corresponding locking tabs.
[0059] FIG. 3D illustrates a side view of the connecting adapter
140 showing a locking finger 153 extending from the body of the
connecting adapter 140, a locking recess 154 formed on the exterior
surface of the locking fingers, and the locking channel 160 formed
along the circumference of the adapter's external surface. In the
embodiment of FIG. 3D, the locking finger 153 widens from its end
314 to its base 340. By widening at its base, where the finger 153
connects with the body of the connecting adapter 140, the strength
of the locking finger 153 is enhanced, making it more difficult to
deform the locking finger 153 and disconnect it when it is engaged
with the locking tab 151 of the source conduit connector 125.
Additionally, the raised strip 350 can also enhance the strength of
the locking finger 153.
[0060] FIG. 3E illustrates a perspective view of the terminal
conduit connector 120 facing aperture of the connecting adapter
140. FIG. 3E shows the locking finger 153, the locking recess 154,
the locking channel 160 and the spines 330 formed longitudinally on
the interior surface of the connecting adapter.
[0061] FIG. 3F illustrates a front facing view of an aperture of
the connecting adapter 140 facing the terminal conduit connector
120. FIG. 3G illustrates a front facing view of an aperture of the
connecting adapter 140 facing the source conduit connector 125. The
spines 330 are shown formed on the interior surface of the adapter
130.
[0062] FIGS. 4A and 4B illustrate a perspective view of the source
aperture 155 side of the terminal conduit connector 120 and a top
view of the terminal conduit connector 120 of FIG. 1A. FIG. 4A
illustrates the terminal conduit connector 120 without the
connecting adapter 140 inserted, while FIG. 4B illustrates the
terminal conduit connector 120 with the connecting adapter 140. In
the illustrated embodiment, the terminal conduit connector 120
includes ridges 405 spaced along the circumference of the interior
surface of the terminal conduit connector 120. In one embodiment,
the ridges 405 are protrusions or tabs formed longitudinally by
surrounding cutouts, or axially, along the terminal conduit
connector 120. The ridges 405 and surrounding cutouts can decrease
frictional engagement with the connecting adapter 140, thereby
improving rotatability. The ridges 405 can be tapered, in width or
in height. The tapering can allow insertion of the connecting
adapter 140 to be accomplished with less force while requiring more
force for removing the connecting adapter 140 as a larger surface
area of each locking tab engages with the terminal collar 320 (FIG.
3A) of the connecting adapter 140. In one embodiment, a locking
groove 410 is formed along the circumference of the terminal
conduit connector 120 and is configured to engage with the terminal
collar 320 of the connecting adapter 140, thereby increasing the
longitudinal force needed to disengage the terminal conduit
connector 120 from the connecting adapter 140.
[0063] In one embodiment, the terminal conduit connector 120
includes a terminal aperture 165 on the terminal conduit connector
120 configured to receive a cannula tube of a nasal cannula 110
(FIG. 1A). The terminal aperture 165 can include two openings for
receiving a double conduit cannula tube, wherein each conduit
connects, on the opposite end of the tube, to a prong for insertion
into a patient's nostril. In the illustrated embodiment, the
openings are optionally surrounded by an angled surface configured
to funnel airflow into the double conduit cannula tube, which can
improve airflow. The terminal conduit connector 120 can also
include one or more finger grooves 415 formed on the outside
surface of the terminal conduit connector 120 in order to provide
additional purchase or friction to a user, for example, for
connecting or disconnecting the connector 105 (FIG. 1A) components.
In FIG. 4A, multiple finger grooves 415 are spaced along the
outside circumference of the terminal conduit connector 120.
[0064] Other configurations of the terminal conduit connector 120
are possible. For example, in some embodiments, the locking tab 405
is a single, continuous ridge. In other embodiments, the ridges 405
are formed perpendicular or angled relative to the axis of the
terminal conduit connector 120. In some embodiments, the locking
groove 410 is not included. The aperture 165 can be a single
opening. For example, the aperture 165 can be configured to receive
a single conduit to a face mask.
[0065] FIGS. 4C-4G illustrate various views of the terminal conduit
connector 120 of FIG. 1C. This embodiment shares many of the
structures and features discussed above with respect the terminal
conduit connector 120 of FIG. 1A.
[0066] FIG. 4C illustrates a side view of the terminal conduit
connector 120 showing the terminal apertures 165 for receiving
nasal cannula and the source aperture 155. A first portion of the
body of the terminal conduit connector 120 that receives the
connecting adapter 140 is a first height. A second portion of the
body of the terminal conduit connecter 120 that receives the nasal
cannula is a second, lower height.
[0067] FIG. 4D illustrates a top down view of the terminal conduit
connector 120 showing the terminal apertures 165 and the source
aperture 155. The first portion of the body of the terminal conduit
connector 120 has a first width while the second portion of the
body has a second, narrower width.
[0068] FIG. 4E illustrates a facing view of the terminal apertures
165. FIG. 4F illustrates a facing view of the source aperture 155
that shows the ridges 405 spaced along the circumference of the
interior surface of the terminal conduit connector 120.
[0069] FIGS. 5A-C illustrate a longitudinal cross-sectional view of
the connector 105 embodiment of FIG. 1A. FIGS. 5A-C illustrate the
terminal collar 320 of the connecting adapter 140 engaged with the
locking groove 410 of the terminal conduit connector 120. A portion
of the sensor probe 135 fits between the fingers 153 of the
connecting adapter. FIGS. 5A-C illustrate the fingers 153 fitting
against the alignment tabs 152. In one embodiment, the source
conduit connector 125 includes an inner cylinder 505 within an
outer cylinder 510, forming an insertion groove 515 for receiving
the delivery tube 115 (FIG. 1A). In one embodiment, pressure from
the inner and outer cylinders maintains a pressure fit with the
delivery tube 115, keeping the delivery tube 115 connected to the
source conduit connector 125.
[0070] FIG. 6 illustrates a cross-section taken along an axis 167
of FIG. 1B facing towards the nasal cannula 110 (FIG. 1A) and
illustrates the engagement of the connecting adapter 140 with the
source conduit connector 125. In the illustrated embodiment, the
source conduit connector 125 and terminal conduit connector 120 are
attached via the connecting adapter 140. The locking tabs 151
formed on the interior surface of the source conduit connector 125
engage with the recesses 154 on the fingers 153 of the connecting
adapter 140. The engagement inhibits longitudinal movement of the
adapter and limits accidental disengagement of the connector 105
(FIG. 1A). The alignment tabs 152 can guide the fingers 153 into
position for engagement.
[0071] As illustrated in FIG. 6, the sensor port 130 provides the
sensor probe 135 with access to the airflow within the gas delivery
conduit 100 (FIG. 1A). Airflow from the airflow source passes by
the sensor probe 135 before exiting through the terminal aperture
165 of the terminal conduit connector 120.
[0072] As will be apparent, there are many possible embodiments for
the connector 105. For example, in some embodiments, the connector
105 does not include a connecting adapter 140 or another component.
In some embodiments, elements, such as tabs, protrusions, recesses,
channels or grooves, are located on different components. For
example, while the above disclosure describes a first element of a
connecting mechanism (e.g., protrusion or tab) to be located on a
first component while a second element of the connecting mechanism
(e.g., recess, channel or groove) is located on a second component,
in some embodiments, the locations of the elements can be switched,
with the first element on the second component and the second
element on the first component. In some embodiments, certain
elements may not be included. In one embodiment, a first connector
component can be configured to attach over a second connector
component while in another embodiment, the second connector
component can be configured to attach over the first connector
component.
[0073] In some embodiments, different types of connections can be
used to attach the components of the connector 105. For example,
adhesives or other chemical agents may be used to permanently affix
some components together. In other examples, different mechanical
connection mechanisms can be used, such as a snap fit, thread,
friction fit or circlip. The components of the connector 105 can be
composed of various types of flexible, semi-rigid, or rigid
materials. For example, the connecting adapter 140 and source
conduit connector 125 can include polypropylene materials and the
terminal conduit connector 120 can include of THERMOLAST materials.
Other materials such as plastics, thermoplastics, silicone,
glass-filled nylon, metal, spring steel, polycarbonate, PVC,
polyethylene, rubber (e.g., natural or vulcanized), polyurethane,
or the like can be used. For example, in one embodiment, the
connecting adapter 140 includes ABS plastic, the source conduit
connecter 125 includes polypropylene, and/or the terminal conduit
connector 120 includes thermoplastic elastomer.
[0074] In some embodiments, some of the releasable connection
mechanisms can be stronger than others. In one embodiment, the
connection formed by the connecting adapter 140 with the source
conduit connector 125 is weaker than the connection formed by the
connecting adapter 140 with the terminal conduit connector 120.
Thus, pulling apart the conduit connectors 120, 125 can cause the
connecting adapter 140 to separate from the source conduit
connector 125 while remaining connected to the terminal conduit
connector 120. This configuration can facilitate changing patient
interfaces by allowing another patient interface to be easily or
quickly attached to the source conduit connector 125. Other
configurations are possible, for example, the connecting adapter
140 can be configured to remain connected with the source
connecting conduit 125.
[0075] In some embodiments, the connections of the connector 105
are configured to allow a quick connect or quick release of the
connector 105 components. For example, the components can be
configured to connect or release with a single motion (e.g., when
pushed together or pulled apart). The components can be configured
to self-align during engagement, such that the connecting
mechanisms of the components align automatically. In another
example, the connections of the connector 105 with the gas delivery
tube 115 (FIG. 1A) and/or the nasal cannula 110 can be stronger
relative to other connections (e.g., the connections with the
connecting adapter 140), such that longitudinal force applied to
the gas delivery conduit 100 causes those other, weaker connections
to disconnect first. In some embodiments, the connections with the
gas delivery tube 115 and/or the nasal cannula 110 are permanent or
semi-permanent, in order to eliminate or reduce accidental
disconnections.
[0076] Other embodiments of the connector 105 are possible. In some
embodiments, the terminal aperture 165 includes a single opening,
two openings, or three or more openings. There can be one, two, or
more than two finger grooves 415 (FIG. 4A) on the outside. In some
embodiments, the gas delivery conduit 100 or portions of the
conduit can be attached to the patient via a lanyard (e.g., around
the patient's neck), clip, or other fastening mechanism. The seals
formed by the components can be air-tight or can allow some air to
leak. In some embodiments, components of the connector 105 can be
colored differently to indicate a size of the connector. For
example, red can indicate adult sized connectors while blue can
indicate infant connectors. In some embodiments, the gas deliver
conduit 100 can include one or more spring tube sections, which can
increase flexibility.
[0077] The components of the connector 105 can be formed in various
sizes, depending on its intended use. For example, connectors for
gas delivery conduits 100 for children or infants can be smaller
than connectors for gas delivery conduits 100 for adults. In some
embodiments, the source conduit connector 125 has an outer diameter
in the range of 5-30 mm, though this diameter may be larger or
smaller in other embodiments. In one embodiment, the outer diameter
is about 15 mm. The other connector components 105 can be sized
correspondingly to the source conduit connector 125. For example,
the other components may be sized approximately the same as the
source conduit connector 125 in order to engage with it.
[0078] FIG. 7 illustrates an alternate connector embodiment 700 of
the connector of FIG. 1A. In FIG. 7, the terminal conduit connector
705 includes dual ball and socket connections 710 for individually
connecting cannula tubes to the terminal conduit connector. The
ball and socket connections 710 can be moved independently of each
other. This can allow the cannula tubes to be untwisted or
untangled separately, thereby facilitating adjustment of the nasal
cannula. In addition, while longer cannula tubes generally allow a
greater degree of adjustments of the nasal cannula, the greater
freedom of movement provided by the ball and socket connections 710
can potentially provide similar degrees of adjustments while
allowing cannula tubes of shorter length to be used.
[0079] FIG. 8 illustrates another alternate connector embodiment
800 of the connector of FIG. 1A. In FIG. 8, the terminal conduit
connector 805 and sensor probe 810 connects substantially
perpendicularly to the source conduit connector 815. The source
conduit connector 815 connects to a swivel tube 820 that in turn
connects to a gas delivery tube 825. As the sensor probe, terminal
conduit connector and source conduit connector are rotatably
attached to the gas delivery tube via the swivel tube 820, the
connector can be laid flat on a patient's bed, potentially
increasing patient comfort or keeping the connector out of the way.
In the illustrated embodiment, the connector 800 is shaped to form
a substantially 90 degree angle, thereby redirecting airflow over
the sensor probe 810 and into the nasal cannula 830. This
redirection of the airflow can advantageously allow the sensor
probe 810 to detect disconnection of the terminal conduit connector
805 by detecting a change in the airflow. For example, the sensor
probe 810 can detect a change in the direction, speed or
compositions (e.g., humidity or temperature) of the airflow and
determine that the terminal conduit connector 805 is no longer
attached to redirect the airflow.
[0080] FIG. 9 illustrates another alternate connector embodiment
900 of the connector of FIG. 1A. In FIG. 9, the terminal conduit
connector 905 can connect either substantially perpendicularly or
substantially straight with the source conduit connector 910. The
dual orientation of the terminal conduit connector 905 can provide
greater flexibility in adjusting the nasal cannula 920.
[0081] The source conduit connector 910 can include an aperture 930
through which the sensor probe 925 can partially extend into the
terminal conduit connector 910, thus placing the sensor probe 925
closer to the entry point of the airflow into the cannula. In the
illustrated embodiment, the aperture 930 is notched to allow the
sensor probe 925 to extend past the aperture 930. This can allow
the sensor probe 925 to gather more accurate measurements of the
temperature, humidity or other parameter of the gases inhaled by
the patient.
[0082] FIG. 10 illustrates another alternate connector embodiment
1000 of the connector of FIG. 1A. In FIG. 10, a terminal conduit
connector 1005 connects to a connecting adapter 1010, which
connects to a source conduit connector 1015. The connecting adapter
1010 includes a collar 1020 having a greater diameter than the
adjacent terminal conduit connector and source conduit connector.
Thus, when the connector is assembled, a portion of the collar 1020
extends past the outer housing of the connected terminal conduit
connector and source conduit connector and remains visible as a
ring. The collar 1020 can be colored to indicate sizing information
for the connector 1000. The collar 1020 can also provide a better
friction hold to a user, thereby allowing a shorter connector to
provide similar amount of frictional grip, which can facilitate the
attachment and/or detachment of the connector components.
[0083] FIG. 11A and FIG. 11B illustrate another alternate connector
embodiment 1100 of the connector of FIG. 1A. In FIG. 11, a terminal
conduit connector 1105 fits within a source conduit connector 1110,
while a threaded cap 1115 fits over the terminal conduit connector
1105 and engages with a threaded end 1120 of the source conduit
connector. The threaded cap 1115 engages with a collar of the
terminal conduit connector 1125 and keeps the terminal conduit
connector pressed against the source conduit connector. Fins 1126
formed on the body of the terminal conduit connector 1105 can
provide a space between the exterior of the terminal conduit
connector 1105 and the interior of the source conduit connector
1110.
[0084] In one embodiment, the threaded cap 1115 only engages with
some of the thread flutes on the threaded end 1120 of the source
conduit connector. For example, if the threaded end 1120 has six
thread flutes, the thread cap 1115 is configured to engage with
only three of the flutes, leaving the other three thread flutes
vacant. The partial engagement of the threads can allow condensate
collecting in the connector to escape out along the vacant threads,
along an outflow path 1135, thereby preventing or inhibiting
condensate from entering the cannula 1130. The outflow path 1135 or
venting channel can be partly formed by the space 1137 between the
exterior of the terminal conduit connector 1105 and the interior of
the source conduit connector 1110.
[0085] FIG. 12 illustrates another alternate connector embodiment
1200 of the connector of FIG. 1A. In FIG. 12, a terminal conduit
connector 1205 connects to a connecting adapter 1210, which
connects to a source conduit connector 1215. The connecting adapter
includes an end 1220 for connecting with the terminal conduit
connector 1205, for example, via threads or friction fit. The
source aperture 1225 of the connecting adapter 1210 fits over the
source conduit connector 1215.
[0086] FIG. 13 illustrates another alternate connector embodiment
1300 of the connector of FIG. 1A. In FIG. 13, a terminal conduit
connector 1305 connects to a source conduit connector 1310. Locking
tabs 1315 formed on a connecting end of the terminal conduit
connector engage with other locking tabs within the source conduit
connector 1310. Twisting the terminal conduit connector 1305
relative to the source conduit connector 1310 can cause the locking
tabs 1315 to disengage, allowing the connector 1300 to be
separated.
[0087] FIG. 14 illustrates another alternate connector embodiment
1400 of the connector of FIG. 1A. In FIG. 14, a terminal conduit
connector 1405 connects to a source conduit connector 1410. A
locking thread 1415 formed on a connecting end of the terminal
conduit connector engages with the source conduit connector.
Twisting the terminal conduit connector 1405 relative to the source
conduit connector 1410 can cause the locking thread 1415 to
disengage, allowing the connector 1400 to be separated.
[0088] In one embodiment, one side of the conduit connector 1410
can be configured to engage with another component using a unique
or proprietary connection mechanism while the other side of the
conduit connector 1410 uses a generic or standard connection
mechanism. The generic connection can allow connection to a variety
of components, made by different manufacturers. Meanwhile, the
proprietary connection only allows connection to components of a
single or a select set of manufacturers. Providing two different
types of connectors can be beneficial in situations when one
component requires greater accuracy than another and requiring use
of a particular component allows components with known or
predetermined characteristics to be used. Meanwhile, the generic
connection can provide greater interoperability. In one example
embodiment, the generic connection 1420 attaches using a friction
fit while the proprietary connection 1425 connects with the locking
thread 1415.
[0089] FIG. 15 illustrates another alternate connector embodiment
1500 of the connector of FIG. 1A. In FIG. 15, a terminal conduit
connector 1505 connects a source conduit connector 1510. The edge
of the source conduit connector 1510 can engage with a locking
groove 1512 on the terminal conduit connecter 1505. An O-ring seal
1515 creates a seal between the terminal conduit connector and
source conduit connector. In the illustrated embodiment, a sensor
port 1520 is formed on the source conduit connector away from the
source conduit connector's connection with the terminal conduit
connector.
[0090] FIG. 16 illustrates another alternate connector embodiment
1600 of the connector of FIG. 1A. In FIG. 16, a terminal conduit
connector 1605 connects with a connecting adapter 1610, which
connects with a source conduit connector 1615. In the illustrated
embodiment, the connecting adapter 1610 includes three fingers 1620
for engaging with the source conduit connector 1615. The fingers
1620 can be spaced apart to create an insertion aperture 1630 for a
sensor probe 1605 to fit between two of the fingers 1620. The
insertion aperture 1630 allows the sensor probe 1605 to be
positioned closer to the nasal cannula 1635. For example, without
the insertion aperture 1630, the sensor probe 1605 may have to be
placed past the ends of the connecting adapter 1610, further away
from the nasal cannula 1635.
[0091] FIG. 17 illustrates an embodiment of a conduit connector
1700 having an integrated sensor probe 1705. The sensor probe 1705
is positioned to fit into an insertion aperture formed by two
fingers of a connecting adapter (e.g., connecting adapter 140 of
FIG. 1). By fitting into an insertion aperture, the sensor probe
1705 can be positioned closer to a nasal cannula. In the
illustrated embodiment, the sensor probe 1705 is positioned at
approximately the same distance from an aperture 1707 of the
conduit connector 1700 as locking tabs 1720. The sensor probe 1705
fits between the fingers of the connecting adapter when the fingers
engage with the locking tabs 1720. In one embodiment, the conduit
connector 1700 does not have a sensor port.
[0092] FIGS. 18A-18C illustrate different views of an embodiment of
a conduit connector 1800 having a receptacle for a detachable
sensor probe. In the illustrated embodiment of FIG. 18A, the
receptacle includes channels 1805, 1810 for receiving the sensor
probe. The channels 1805, 1810 can extend partially or wholly
within an interior surface of the conduit connector 1800. The
sensor probe can be plate-shaped, rectangular shaped, oval shaped,
diamond shaped or any other shape configured to be received by the
receptacle. In one embodiment, the sensor probe comprises alignment
tabs configured to engage with the channels 1805, 1810. The
alignment tabs can be configured to position the sensor probe into
a predetermined position within the conduit connector 1800, such as
a position where sensor measurements can be more effectively taken
or a position between an insertion aperture formed by one or more
locking fingers of a connecting adapter.
[0093] In one embodiment, the receptacle can include a catch,
notch, tab, wall or other structure for locking or securing the
sensor probe in place once the predetermined position is reached.
In some embodiments, the receptacle can include other structures
for receiving and/or securing the sensor probe in addition or
alternatively to the channels 1805, 1810. For example, the
receptacle can comprise ridges configured to engage with channels
on the sensor probe. The conduit connector 1800 can also include
one or more locking tabs 1820.
[0094] FIG. 18B illustrates a back perspective view and FIG. 18C
illustrates a cross-sectional view of the embodiment of FIG. 18A.
In the illustrated embodiment, an insertion groove for a second
conduit, such as a hose or deliver tube, is formed by a space
between the outer wall 1825, 1830 and an inner wall 1827, 1832 of
the conduit connector 1800. In the illustrated embodiment, and end
of the outer wall extends past an end 1822 of the inner wall.
However, in other embodiments, the inner and outer wall may be the
same length or the inner wall may extend past the outer wall.
[0095] FIGS. 19A-19B illustrate an alternate connector adapter
embodiment configured to connect with the source conduit connector
embodiment of FIGS. 20A-20B.
[0096] FIG. 19A illustrates a side view of the connecting adapter
facing one of two locking fingers 153 and its locking recess 154. A
channel 160 formed on the body of the connecting adapter provides
an engagement surface for a corresponding terminal conduit
connector, as shown in various embodiments of the disclosure. In
FIG. 19A, the locking recess 154 extends across the locking finger
153 to provide engagement with an annular locking ring on the
source conduit connector embodiment of FIGS. 20A-20B.
[0097] FIG. 19B illustrates a perspective view of the connecting
adapter of FIG. 19A showing the locking fingers 153 and its locking
recess 154.
[0098] FIGS. 20A-20B illustrate an alternate source conduit
connector 125 embodiment having an annular ring for attaching to
the alternate connector adapter embodiment of FIGS. 19A-19B.
[0099] FIG. 20A illustrates a perspective view of the source
conduit connector facing the terminal aperture 150 side. Formed
within the interior surface of the source conduit connecter is an
annular locking ring 2005 formed by a raised strip running
circumferentially within the body of the source conduit connector.
The locking recesses 154 of the connecting adapter of FIGS. 19A and
19B are configured to engage with the annular locking ring 2005
when the connecting adapter is inserted into the source conduit
connector.
[0100] FIG. 20B illustrates a cross sectional view taken along the
indicated cross section line in FIG. 20A. The cross-sectional view
shows the annular locking ring 2005 formed on the interior surface
of the source conduit connecter.
[0101] FIGS. 21A-D illustrate different views of an embodiment of a
nasal cannula 2100 that connects to an airflow source via the
various connector embodiments discussed in the disclosure. In some
embodiments, the nasal cannula is for infants.
[0102] FIG. 21A illustrates a top perspective view of the patient
facing side of the nasal cannula 2100. The nasal cannula 2100
includes two prongs 2105a, 2105b that fit into the patient's
nostrils. Airway tubes 2110 extend from the prongs and connect to
an air source (e.g., via the connector 105 of FIG. 1A).
[0103] FIG. 21B illustrates a top perspective view of the external
side of the nasal cannula 2100 facing away from the patient. FIG.
21B shows the two prongs 2105a, 2105b and two airway tubes 2110a,
2110b connected to the two prongs.
[0104] FIG. 21C illustrates a side view of the nasal cannula 2100
showing one of the prongs 2105 and one of the airway tubes
2110.
[0105] FIG. 21D illustrates a bottom view of the nasal cannula 2100
showing the two prongs 2105a, 2105b and the two airway tubes 2110a,
2110b connected to the two prongs.
[0106] In some embodiments, certain features can be associated with
different components or left out. For example, the connection
mechanism in the terminal conduit connector 120 can be implemented
by the source conduit connector 125 and/or the connection mechanism
of the source conduit connector 125 can be implemented by the
terminal conduit connector 120. In another example, the sensor port
130 can be located on the terminal conduit connector 120 rather
than the source conduit connector 125. Some features can be
implemented by a different component (e.g., the terminal conduit
connector 120, source conduit connector 125 or connecting adapter
140) rather than in the component described as implementing the
feature in the above disclosure.
[0107] Conditional language used herein, such as, among others,
"can," "could," "might," "may," "e.g.," and the like, unless
specifically stated otherwise, or otherwise understood within the
context as used, is generally intended to convey that certain
embodiments include, while other embodiments do not include,
certain features, elements and/or states. Thus, such conditional
language is not generally intended to imply that features and/or
elements are in any way required for one or more embodiments.
[0108] Although the foregoing disclosure has been described in
terms of certain preferred embodiments, other embodiments will be
apparent to those of ordinary skill in the art from the disclosure
herein. It is contemplated that various aspects and features of the
disclosure described can be practiced separately, combined
together, or substituted for one another, and that a variety of
combination and subcombinations of the features and aspects can be
made and still fall within the scope of the disclosure.
Accordingly, the present disclosure is not intended to be limited
by the recitation of the preferred embodiments, but is to be
defined by reference to the appended claims.
* * * * *