U.S. patent application number 14/907517 was filed with the patent office on 2016-06-09 for systems and methods for conducting smoke evacuation during laparoscopic surgical procedures.
The applicant listed for this patent is SURGIQUEST, INC.. Invention is credited to Kurt Azarbarzin, Kenneth Blier, Dominick Mastri, Ralph Stearns, Raymond Yue-Sing Tang.
Application Number | 20160158468 14/907517 |
Document ID | / |
Family ID | 50776512 |
Filed Date | 2016-06-09 |
United States Patent
Application |
20160158468 |
Kind Code |
A1 |
Tang; Raymond Yue-Sing ; et
al. |
June 9, 2016 |
SYSTEMS AND METHODS FOR CONDUCTING SMOKE EVACUATION DURING
LAPAROSCOPIC SURGICAL PROCEDURES
Abstract
An insufflation and smoke evacuation system for use during
laparoscopic surgical procedures in an abdominal cavity of a
patient is disclosed that includes a pump for circulating
pressurized gas within the system, and a dual lumen cannula
configured to provide access to the abdominal cavity of a patient,
which includes a first lumen communicating with a source of
insufflation fluid and a second lumen communicating with the
pump.
Inventors: |
Tang; Raymond Yue-Sing;
(Rosemead, CA) ; Blier; Kenneth; (Cheshire,
CT) ; Stearns; Ralph; (Bozrah, CT) ;
Azarbarzin; Kurt; (Fairfield, CT) ; Mastri;
Dominick; (Bridgeport, CT) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
SURGIQUEST, INC. |
Milford |
CT |
US |
|
|
Family ID: |
50776512 |
Appl. No.: |
14/907517 |
Filed: |
November 20, 2013 |
PCT Filed: |
November 20, 2013 |
PCT NO: |
PCT/US13/70933 |
371 Date: |
January 25, 2016 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
61826088 |
May 22, 2013 |
|
|
|
61728608 |
Nov 20, 2012 |
|
|
|
Current U.S.
Class: |
604/26 |
Current CPC
Class: |
A61B 17/3474 20130101;
A61M 13/006 20140204; A61B 2218/006 20130101; A61M 2205/7545
20130101; A61B 2218/008 20130101; A61M 2205/3344 20130101; F04C
2270/041 20130101; A61B 17/3462 20130101; A61M 2205/3337
20130101 |
International
Class: |
A61M 13/00 20060101
A61M013/00 |
Claims
1. An insufflation and smoke evacuation system for use during
laparoscopic surgical procedures, comprising: a) a pump for
circulating pressurized gas within the system; and b) a dual lumen
cannula configured to provide access to the abdominal cavity of a
patient, which includes a first lumen for fluid communication with
a source of insufflation fluid and a second lumen in fluid
communication with the pump.
2. A system as recited in claim 1, further comprising a second
cannula for introduction into the abdominal cavity of the patient,
which includes a single lumen in fluid communication with a suction
side of the pump for removing gas from the abdominal cavity.
3. A system as recited in claim 2, wherein the second lumen is in
fluid communication with a pressure side of the pump for delivering
pressurized gas to the abdominal cavity.
4. A system as recited in claim 1, wherein the second lumen is in
fluid communication with a suction side of the pump for removing
gas from the abdominal cavity.
5. A system as recited in claim 4, wherein the first lumen is in
fluid communication with the source of insufflation fluid and a
pressure side of the pump for delivering pressurized gas and
insufflation fluid to the abdominal cavity.
6. A system as recited in claim 1, wherein a bypass valve is
operatively associated with the pump for controlling a gas
circulation rate within the system.
7. A system as recited in claim 1, wherein a mechanical seal is
operatively associated with the second lumen to maintain abdominal
pressure.
8. A system as recited in claim 1, wherein the first lumen is
configured to serve as a sense line for sensing abdominal
pressure.
9. A system as recited in claim 1, further comprising a filter
device operatively connected for filtering gas circulating through
the system to remove smoke and debris therefrom.
10. An insufflation and smoke evacuation system for use during
laparoscopic surgical procedures, comprising: a) a source of
insufflation fluid; b) a pump for circulating pressurized gas
within the system; and c) a dual lumen cannula configured to
provide access to the abdominal cavity of a patient, which includes
a first lumen in fluid communication with the source of
insufflation fluid and a pressure side of the pump for delivering
pressurized gas and insufflation fluid to the abdominal cavity, and
a second lumen in fluid communication with a suction side of the
pump for removing gas from the abdominal cavity.
11. A system as recited in claim 10, wherein a bypass valve is
operatively associated with the pump for controlling a gas
circulation rate within the system.
12. A system as recited in claim 10, wherein a mechanical seal is
operatively associated with the second lumen to maintain abdominal
pressure.
13. A system as recited in claim 10, wherein the first lumen is
configured to serve as a sense line for sensing abdominal
pressure.
14. A system as recited in claim 10, further comprising a filter
device for filtering gas circulating through the system to remove
smoke and debris therefrom.
15. An insufflation and smoke evacuation system for use during
laparoscopic surgical procedures, comprising: a) a source of
insufflation fluid; b) a pump for circulating pressurized gas
within the system; c) a dual lumen cannula including a first lumen
in fluid communication with the source of insufflation fluid and a
second lumen in fluid communication with a pressure side of the
pump for delivering pressurized gas to the abdominal cavity; and d)
a second cannula having a single lumen in fluid communication with
a suction side of the pump for removing gas from the abdominal
cavity.
16. A system as recited in claim 15, wherein a bypass valve is
operatively associated with the pump for controlling a gas
circulation rate within the system.
17. A system as recited in claim 15, wherein a mechanical seal is
operatively associated with the second lumen to maintain abdominal
pressure.
18. A system as recited in claim 15, wherein the first lumen is
configured to serve as a sense line for sensing abdominal
pressure.
19. A system as recited in claim 15, further comprising a filter
device for filtering gas circulating through the system to remove
smoke and debris therefrom.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority to U.S. Provisional Patent
Application No. 61/826,088 filed May 22, 2013 and to U.S.
Provisional Patent Application No. 61/728,608 filed Nov. 20, 2012,
each of which is incorporated by reference herein in its
entirety.
BACKGROUND OF THE INVENTION
[0002] 1. Field of the Invention
[0003] The subject invention is directed to laparoscopic surgery,
and more particularly, to systems and methods for conducting smoke
removal and evacuation from the abdominal cavity of a patient
during a laparoscopic surgical procedure utilizing a dual lumen
cannula.
[0004] 2. Description of Related Art
[0005] Laparoscopic or "minimally invasive" surgical techniques are
becoming commonplace in the performance of procedures such as
cholecystectomies, appendectomies, hernia repair and nephrectomies.
Benefits of such procedures include reduced trauma to the patient,
reduced opportunity for infection, and decreased recovery time.
Such procedures within the abdominal (peritoneal) cavity are
typically performed through a device known as a trocar or cannula,
which facilitates the introduction of laparoscopic instruments into
the abdominal cavity of a patient.
[0006] Additionally, such procedures commonly involve filling or
"insufflating" the abdominal (peritoneal) cavity with a pressurized
fluid, such as carbon dioxide, to create what is referred to as a
pneumoperitoneum. The insufflation can be carried out by a surgical
access device, e.g., a cannula or trocar, equipped to deliver
insufflation fluid, or by a separate insufflation device, such as
an insufflation (veress) needle. Introduction of surgical
instruments into the pneumoperitoneum without a substantial loss of
insufflation gas is desirable, in order to maintain the
pneumoperitoneum.
[0007] During typical laparoscopic procedures, a surgeon makes
three to four small incisions, usually no larger than about twelve
millimeters each, which are typically made with the surgical access
devices themselves, typically using a separate inserter or
obturator placed therein. Following insertion, the inserter is
removed, and the trocar allows access for instruments to be
inserted into the abdominal cavity. Typical trocars often provide
means to insufflate the abdominal cavity, so that the surgeon has
an open interior space in which to work.
[0008] The trocar must provide a means to maintain the pressure
within the cavity by sealing between the trocar and the surgical
instrument being used, while still allowing at least a minimum
freedom of movement of the surgical instruments. Such instruments
can include, for example, scissors, grasping instruments, and
occluding instruments, cauterizing units, cameras, light sources
and other surgical instruments. Sealing elements or mechanisms are
typically provided on trocars to prevent the escape of insufflation
gas. Sealing elements or mechanisms typically include a
duckbill-type valve made of a relatively pliable material, to seal
around an outer surface of surgical instruments passing through the
trocar.
[0009] Further, in laparoscopic surgery, electrocautery and other
techniques (e.g. harmonic scalpels) create smoke and other debris
in the surgical cavity, reducing visibility by fogging the view
from, and coating surfaces of endoscopes and the like. A variety of
surgical insufflation systems and smoke evacuation systems are
known in the art.
[0010] Additionally, SurgiQuest, Inc., Milford, Conn. USA has
developed surgical access devices that permit access to an
insufflated surgical cavity without conventional mechanical seals,
and has developed related systems for providing sufficient pressure
and flow rates to such access devices, as described in whole or in
part in U.S. Pat. No. 7,854,724.
[0011] While the systems and methods described above have generally
been considered satisfactory for their intended purpose, there is
an ongoing need for improved functionality in insufflation systems
and related techniques.
SUMMARY OF THE INVENTION
[0012] The subject disclosure is directed to a new and useful
surgical gas delivery system for use during laparoscopic surgical
procedures, e.g., in an abdominal cavity of a patient, and more
particularly, to an insufflation and smoke evacuation system that
includes a pump for circulating pressurized gas within the system
and a dual lumen cannula configured to provide access to the
abdominal cavity of a patient, which includes a first lumen
communicating with the source of insufflation fluid and a second
lumen communicating with the pump.
[0013] In one embodiment of the subject invention, the dual lumen
cannula includes a first lumen communicating with the source of
insufflation fluid and a pressure side of the pump for delivering
pressurized gas and insufflation fluid to the abdominal cavity, and
a second lumen communicating with a suction side of the pump for
removing gas from the abdominal cavity.
[0014] In another embodiment of the subject invention, the dual
lumen cannula includes a first lumen communicating with the source
of insufflation fluid and a second lumen communicating with a
pressure side of the pump for delivering pressurized gas to the
abdominal cavity. In addition, the system includes a second cannula
which has a single lumen communicating with a suction side of the
pump for removing gas from the abdominal cavity.
[0015] In certain embodiments of the subject invention, a bypass
valve is operatively associated with the pump for controlling a gas
circulation rate within the system. In addition, a mechanical seal
is operatively associated with the second lumen to maintain
abdominal pressure, and the first lumen serves as a sense line for
sensing abdominal pressure. A filter device is also provided for
filtering gas circulating through the system to remove smoke and
debris therefrom.
[0016] These and other features of the system of the subject
invention and the manner in which it is manufactured and employed
will become more readily apparent to those having ordinary skill in
the art from the following enabling description of the preferred
embodiments of the subject invention taken in conjunction with the
several drawings described below.
BRIEF DESCRIPTION OF THE DRAWINGS
[0017] So that those skilled in the art to which the subject
invention appertains will readily understand how to make and use
the subject invention without undue experimentation, preferred
embodiments thereof will be described in detail herein below with
reference to certain figures, wherein:
[0018] FIG. 1 is cross-sectional view of the upper portion of a
dual lumen cannula constructed in accordance with a preferred
embodiment of the subject invention, which includes, among other
things a mechanical duckbill seal;
[0019] FIG. 2 is a schematic drawing of an embodiment of the
insufflation and smoke evacuation system of the subject invention,
which employs the dual lumen cannula shown in FIG. 1, as well as an
additional single lumen cannula;
[0020] FIG. 3 is s schematic drawing of an embodiment of the
insufflation and smoke evacuation system of the subject invention,
which employs the dual lumen cannula shown in FIG. 1; and
[0021] FIG. 4 is a schematic drawing of yet another embodiment of
the insufflation and smoke evacuation system of the subject
invention, which employs a tri-lumen cannula, as well as an
additional single lumen cannula.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
[0022] Reference will now be made to the drawings wherein like
reference numerals identify similar structural features or aspects
of the subject disclosure. For purposes of explanation and
illustration, and not limitation, a partial view of an exemplary
embodiment of an insufflation and smoke evacuation system in
accordance with the disclosure is shown in FIG. 1 and is designated
generally by reference character 10. Other embodiments of
insufflation and smoke evacuation systems in accordance with the
disclosure, or aspects thereof, are provided in FIGS. 2-4, as will
be described. It is to be appreciated that the systems, devices and
methods presented herein may be used for surgical gas delivery,
including insufflation, smoke evacuation, and/or recirculation in
connection with suitable surgical devices, and in applicable
surgical procedures.
[0023] The present invention relates to multimodal systems, and
related devices and methods, capable of performing multiple
surgical gas delivery functions, including insufflation to standard
or specialized surgical access devices or other instruments, such
as veress needles and the like, smoke evacuation through standard
or specialized surgical access devices, and specialized functions,
such as recirculation and filtration of insufflation fluids, such
as with the above-mentioned surgical access devices described for
example in U.S. Pat. No. 7,854,724; as well as those in U.S. Pat.
Nos. 7,182,752; 7,285,112; 7,413,559 or 7,338,473; each of which is
incorporated by reference herein in its entirety.
[0024] Use of a single multimodal system such as those described
herein reduces costs by requiring purchase of only one system while
achieving multiple functions, and also thereby reduces the amount
of equipment needed in an operating room, thus reducing clutter and
allowing space for other necessary equipment.
[0025] The present invention is particularly suited for minimizing
the amount of equipment needed in a surgical operating room, in
that the subject systems are capable of performing multiple
functions, and therefore also allow flexibility of surgical
technique. It is envisioned that the gas delivery system disclosed
herein can be used in general laparoscopic procedures including but
not limited to laparoscopic cholecystectomy, laparoscopic
appendectomy, laparoscopic hernia repair, Nissen-Y and Lap
Nephrectomy.
[0026] Those skilled in the art will readily appreciate that
systems described in U.S. Pat. No. 7,854,724, for example, provide
pressurized gas to and remove depressurized gas from specialized
surgical access devices, which penetrate into a surgical cavity,
such as a patient's abdominal cavity. These access devices are
adapted and configured to form a pressure barrier to inhibit the
loss of insufflation gas to the atmosphere.
[0027] An example of an access device constructed in accordance
with a preferred embodiment of the subject invention is illustrated
in FIG. 1 and is designated generally by reference numeral 10.
Access device 10 is configured as a dual lumen cannula. That is, it
includes a proximal housing 12, an outer cannula 14 and an inner
cannula 16. The inner cannula 16 defines a central or inner lumen
18 and an annular or outer lumen 20 is formed between the outer
cannula 14 and the inner cannula 16.
[0028] The housing 12 includes a first flow port 28 communicating
with the central lumen of the inner cannula 16 and a second flow
port 30 communicating with the annular passage 20. A main access
port 32 is provided in the end cap 34 of the housing 12, and a
duckbill seal 36 is supported within the housing 12 to prevent the
egress of pressurized gas from the device through the access port
32.
[0029] As discussed in more detail below with reference to FIG. 2,
during use gas from the abdomen, e.g., pneumoperitoneum 116,
interchanges with gas coming from the access device 10, a portion
of which is collected and recycled through the system, and is
re-pressurized along the way, passing through one or more filters,
e.g., filter 123 described below. During this recycling process,
smoke and/or other circulating debris, such as atomized fluids, are
removed by the filters, improving visibility within the surgical
cavity, thus aiding in the surgical procedure. An example of a
filter that can be utilized with the subject invention is disclosed
in U.S. Pat. No. 8,088,189, the disclosure of which is herein
incorporated by reference in its entirety.
[0030] Referring now to FIG. 2, there is illustrated an
insufflation and smoke evacuation system constructed in accordance
with the subject invention and designated generally by reference
numeral 100 that includes a recirculation pump 112 for circulating
pressurized gas within the system. The system 100 includes a dual
lumen cannula 10 as illustrated in FIG. 1. In this embodiment of
the invention, the dual lumen cannula 10 includes a first or outer
lumen 20 communicating with a source of insufflation fluid 114
through a conduit 115 connected to the flow port 30 in housing 12.
The source of insufflation fluid 114 maintains pressure within
pneumoperitoneum 116. The outer lumen 20 of dual lumen cannula 10
also serves as a sense line for sensing and controlling abdominal
pressure within the system 100.
[0031] The dual lumen cannula 10 of system 100 further includes a
second or central lumen 18 communicating with a pressure or supply
side of the recirculation pump 112 through a conduit 117 connected
to the flow port 28 in housing 12 for delivering pressurized gas to
the abdominal cavity, e.g., for recirculation as described
below.
[0032] In addition, the system 100 includes a second cannula 150
which has a single lumen that communicates with a suction side of
the recirculation pump 112 through a conduit 119, e.g., by way of a
luer connection, for removing gas from the abdominal cavity. System
100 further includes a bypass valve 125 that is operatively
associated with the recirculation pump 112 through a conduit 121
connecting conduit 117 to conduit 119 to control the gas
circulation rate within the system 100. When bypass valve 125 is
closed, pump 112 recirculates gas through connecting conduit 117,
central lumen 18, pneumoperitoneum 116, second cannula 150, and
conduit 119, which includes a filter 123. Filter 123 can remove
smoke, particles, moisture, and the like from the insufflation gas
circulating through pneumoperitoneum 116. Bypass valve 112 can be
opened and adjusted as needed to reduce the flow of recirculation
through pneumoperitoneum 116.
[0033] Referring now to FIG. 3, there is illustrated another
insufflation and smoke evacuation system constructed in accordance
with the subject invention and designated generally by reference
numeral 200 that includes a recirculation pump 212 for circulating
pressurized gas within the system. The system 200 further includes
a dual lumen cannula 10 as illustrated in FIG. 1.
[0034] In this embodiment of the invention, the dual lumen cannula
10 includes a first annular lumen 20 communicating with a source of
insufflation fluid 214 and a high pressure side (or supply side) of
the pump 212 through a conduit 217 connected to the flow port 30 in
housing 12. The annular lumen 20 of dual lumen cannula 10 also
serves as a sense line for sensing abdominal pressure within the
system 200.
[0035] In system 200, the dual lumen cannula 10 further includes a
second lumen 18 communicating with the suction side of the
recirculation pump 212 through a conduit 219 connected to the flow
port 28 of housing 12 for removing gas from the abdominal cavity,
e.g. pneumoperitoneum 116 of FIG. 1. In this embodiment, second
lumen 18 has only one line, namely conduit 219, which is a suction
line, i.e., there is no sense/insufflation line for second lumen
18. System 200 further includes a bypass valve 225 that is
operatively associated with the recirculation pump 212 through a
conduit 221 connecting conduit 217 to conduit 219 to control the
rate of gas circulation within the system 200. Bypass valve 225 can
be used to control the amount of recirculation flow through dual
lumen cannula 10 as described above. Filter 223 operates as
described above with respect to filter 123.
[0036] Referring to FIG. 4, there is there is illustrated yet
another insufflation and smoke evacuation system designated
generally by reference numeral 300. System 300 includes a source of
insufflation gas 314, pump 312, bypass valve 325, second cannula
350, and filter 323, and is substantially identical to the system
100 shown in FIG. 2, except that system 300 includes a tri-lumen
cannula 320 and a communication line 360 that extends between the
inner bowl area of the cannula 320 and the vacuum line 319. As a
result, if the tri-lumen cannula 320 is used as an access port for
a laparoscope, smoke will exit the abdominal cavity in an area that
is located away from the distal end of the scope so as not to
adversely impact visibility through the scope.
[0037] While shown and described in the exemplary context of
insufflation of a peritoneum space, those skilled in the art will
readily appreciate that any suitable space can be insufflated with
the systems and methods described herein without departing from the
scope of this disclosure.
[0038] While the subject invention has been shown and described
with reference to preferred embodiments, those skilled in the art
will readily appreciate that various changes and/or modifications
may be made thereto without departing from the spirit and scope of
the subject invention as defined by the appended claims.
* * * * *