U.S. patent application number 15/457404 was filed with the patent office on 2019-03-21 for retractor.
The applicant listed for this patent is David A. Opperman. Invention is credited to David A. Opperman.
Application Number | 20190082947 15/457404 |
Document ID | / |
Family ID | 65721203 |
Filed Date | 2019-03-21 |
United States Patent
Application |
20190082947 |
Kind Code |
A1 |
Opperman; David A. |
March 21, 2019 |
RETRACTOR
Abstract
A retractor used in inner-oral surgery is provided that includes
a maxilla portion configured to maintain a patient's mount in an
open state. The retractor also includes a blade that maintains the
position of the tongue so that surgical tools are not obstructed.
The maxilla portion of one embodiment only extends a portion of the
length of the blade.
Inventors: |
Opperman; David A.;
(Littleton, CO) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Opperman; David A. |
Littleton |
CO |
US |
|
|
Family ID: |
65721203 |
Appl. No.: |
15/457404 |
Filed: |
March 13, 2017 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
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62307333 |
Mar 11, 2016 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A61B 1/267 20130101;
A61B 17/02 20130101; A61B 1/24 20130101 |
International
Class: |
A61B 1/24 20060101
A61B001/24; A61B 1/32 20060101 A61B001/32 |
Claims
1. A retractor adapted for use with a laryngoscope, comprising: a
blade having a proximal end and a distal end that define a first
length, the blade being adapted to constrain at least a portion of
a patient's tongue; a handle interconnected to the proximal end of
the blade; a maxilla portion interconnected to the blade, the
maxilla portion having a distal end spaced from the proximal end of
the blade; wherein the maxilla portion and the blade are curved to
provide a generally cylindrical passage that defines a longitudinal
axis of the retractor, the cylindrical passage adapted to
selectively receive a medical instrument; and wherein the distal
end of the maxilla portion is closer to the proximal end of the
blade than the distal end of the blade, such that a majority of the
blade is exposed.
2. The retractor of claim 1, wherein the maxilla portion has a
first lateral edge and a second lateral edge that are
interconnected to corresponding lateral edges of the blade, wherein
a proximal end of the first lateral edge and a proximal end of the
second lateral edge are spaced from the proximal end of the blade,
wherein the maxilla portion comprises an arcuate surface that
extends from the first lateral edge to the second lateral edge, and
wherein the arcuate surface includes an outer portion that has a
longitudinal dimension greater than the length of the first lateral
edge and the second lateral edge, the outer portion having a
proximal end that generally corresponds with the proximal end of
the blade.
3. The retractor of claim 2, wherein the lateral edge of the blade
and the outer portion of the arcuate surface define a c-shaped
proximal edge of the maxilla portion.
4. The retractor of claim 1, wherein the distal end of the blade is
spaced transversely from the longitudinal axis of the
retractor.
5. (canceled)
6. The retractor of claim 1, wherein the distal end has a tapered
shape.
7. (canceled)
8. A retractor adapted for use with a laryngoscope, comprising: a
blade having a proximal end and a distal end; a maxilla portion
interconnected to the blade, wherein the maxilla portion and the
blade are curved to provide a generally cylindrical passage that
defines a longitudinal axis of the retractor; wherein the maxilla
portion is shorter than the blade; wherein the maxilla portion has
a first lateral edge and a second lateral edge that are
interconnected to corresponding lateral edges of the blade, wherein
proximal ends of the first and second lateral edges are spaced from
the proximal end of the blade, the maxilla portion further
comprised of an arcuate surface that extends from the first lateral
edge to the second lateral edge, the arcuate surface including an
outer portion that has a longitudinal dimension that is greater
than the length of the first lateral edge and the second lateral
edge; wherein the lateral edge of the blade and the outer portion
of the arcuate surface define a c-shaped proximal edge of the
maxilla portion; wherein the distal end of the blade is spaced
transversely from the longitudinal axis of the retractor; and
wherein the distal end of the blade has a tapered shape.
Description
[0001] This application claims the benefit of U.S. Patent
Provisional Patent Application Ser. No. 62/307,333, filed Mar. 11,
2016, the entire disclosure of which is incorporated by reference
herein.
FIELD OF THE INVENTION
[0002] Embodiments of the present invention are generally related
to retractors used with laryngoscopes. More specifically, one
embodiment of the present invention is a retractor supported by a
gallows laryngoscope holder that facilitates the use of traditional
or robotic medical instruments.
BACKGROUND OF THE INVENTION
[0003] Laryngoscopes are routinely used to facilitate endotracheal
intubation of patients, to provide an air passage for
administration of anesthesia, and/or to establish an airway. In
addition, laryngoscopes are commonly used in surgery to displace
pharyngeal tissues to permit direct inspection of the larynx (i.e.
direct laryngoscopy). Many laryngoscopes are L-shaped having a
handle connected to single curved or straight blade.
Otolaryngologists typically use a tubed laryngoscope to view the
larynx and operate endoscopically on the true vocal cords (i.e.
glottis). U.S. Pat. Nos. 4,384,570 and 5,092,314, which are
incorporated by reference herein, discuss common laryngoscopes.
[0004] Laryngoscopes are often used with gallows-type holders that
suspend a tubular retractor that receives traditional or robotic
surgical instruments. The gallows holder and retractor support the
patient's head and provides a clear path for traditional or robotic
instruments to reach the larynx.
[0005] Alternatively, laryngoscopes are used, albeit less
effectively, with jaw spreaders where mouth and larynx tissue are
moved by various retractors interconnected to a peripheral
structure positioned about the patient's head. One of the
retractors interconnected to the peripheral structure is a
non-cylindrical blade designed to hold the tongue in an ideal
location. One drawback of using jaw spreaders, for example, those
manufactured by Olympus.RTM. under the trade name FK-WO TORS, is
that the retractors used are ineffective for endolaryngial
surgery.
[0006] Thus, there is a long-felt need to provide a retractor for
endolarynginal surgeries that effectively moves and maintains
laryngidal tissue so the traditional or robotic surgical
instruments can be used.
SUMMARY OF THE INVENTION
[0007] It is one aspect of embodiments of the present invention to
provide a retractor for use with laryngoscopes. The contemplated
retractor can accommodate traditional or robotic medical
instruments.
[0008] It is another aspect of embodiments of the present invention
to provide a retractor with a maxilla portion for contact with a
patient's upper teeth that is shorter than a blade adapted to
restrain the patient's tongue. The maxilla portion and the blade
are curved in such a way to provide a generally cylindrical passage
for the receipt of traditional or robotic medical instruments.
[0009] It is yet another aspect of embodiments of the present
invention to provide a retractor adapted for use with a
laryngoscope, comprising: a blade having a proximal end and a
distal end; a handle interconnected to the proximal end of the
blade; a maxilla portion interconnected to the blade, wherein the
maxilla portion and the blade are curved to provide a generally
cylindrical passage adapted to selectively receive a medical
instrument; and wherein the maxilla portion is shorter than the
blade.
[0010] It is still yet another aspect of embodiments of the present
invention to provide a retractor adapted for use with a
laryngoscope, comprising: a blade having a proximal end and a
distal end; a handle interconnected to the proximal end of the
blade; a maxilla portion interconnected to the blade, wherein the
maxilla portion and the blade are curved to provide a generally
cylindrical passage adapted to selectively receive a medical
instrument; wherein the maxilla portion is shorter than the blade.
wherein the maxilla portion has a first lateral edge and a second
lateral edge that are interconnected to a lateral edge of the
blade, the maxilla portion also comprising an arcuate surface that
extends from the first lateral edge to the second lateral edge, and
wherein the arcuate surface includes an outer portion that has a
longitudinal dimension that is greater than the length of the first
lateral edge and the second lateral edge; wherein the ends of the
first lateral edge and the second lateral edge are spaced from the
proximal end, and wherein the lateral edge of the blade and the
outer portion of the arcuate surface define a c-shaped proximal
edge of the maxilla portion; wherein the distal end is spaced
transversely from the proximal end, and wherein the blade is
curved; wherein the proximal end defines a longitudinal axis of the
blade, and wherein the blade comprises a curved profile about the
longitudinal axis; wherein the distal end has a tapered shape; and
wherein the maxilla provides and opening and a passageway that is
adapted to accommodate a surgical instrument.
[0011] The Summary of the Invention is neither intended nor should
it be construed as being representative of the full extent and
scope of the present invention. Moreover, references made herein to
"the present invention" or aspects thereof should be understood to
mean certain embodiments of the present invention and should not
necessarily be construed as limiting all embodiments to a
particular description. The present invention is set forth in
various levels of detail in the Summary of the Invention as well as
in the attached drawings and the Detailed Description of the
Invention and no limitation as to the scope of the present
invention is intended by either the inclusion or non-inclusion of
elements, components, etc. in this Summary of the Invention.
Additional aspects of the present invention will become more
readily apparent from the Detail Description, particularly when
taken together with the drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The accompanying drawings, which are incorporated in and
constitute a part of the specification, illustrate embodiments of
the invention and together with the general description of the
invention given above and the detailed description of the drawings
given below, serve to explain the principles of these
inventions.
[0013] FIG. 1 is a front elevation view of the retractor of one
embodiment of the present invention;
[0014] FIG. 2 is a detailed right perspective view of the retractor
shown in FIG. 1;
[0015] FIG. 3 is a detailed left elevation view of the retractor
shown in FIG. 1;
[0016] FIG. 4 is a top elevation view of FIG. 2;
[0017] FIG. 5 is a detailed view of FIG. 4; and
[0018] FIG. 6 is an elevation view of the retractor of one
embodiment of the present invention positioned in a patient's
mouth.
[0019] It should be understood that the drawings are not
necessarily to scale. In certain instances, details not necessary
for an understanding of the invention or that render other details
difficult to perceive may have been omitted. It should be
understood, of course, that the invention is not necessarily
limited to the particular embodiments illustrated herein.
DETAILED DESCRIPTION
[0020] FIGS. 1-5 show the retractor 2 of one embodiment of the
present invention that includes a blade 6 interconnected to a
handle 10 that selectively interfaces with a gallows support 14.
The blade 6 is curved about its longitudinal axis (A) to provide a
semi-cylindrical profile. The blade 6 is also curved at the tip 18
at an angle (.PHI.) relative to the longitudinal axis of the
retractor 2. The retractor includes a maxilla portion 22 configured
to maintain a patient's 26 mouth open, while the blade 6 keeps the
patient's tongue 30 away from the roof of the mouth. The maxilla
portion 22 is generally cylindrical, thereby providing an opening
34 and a passage 38 that receive and accommodate surgical
instruments.
[0021] In operation, the handle 10 is positioned outside the
patient's mouth and the blade 6 is positioned in such a way to
ensure a clear path to the patient's oral cavity and, thus, the
pharynx, larynx, and associated structures.
[0022] The tip 18 of one embodiment of the present invention is
tapered, which facilitates use of robotic medical instruments.
[0023] FIG. 6 shows the retractor 2 of one embodiment of the
present invention provided in a patient's mouth. As one of ordinary
skill in the art will appreciate, the maxilla portion 22 maintains
the position of the patient's maxilla 42 (i.e., lower jaw). The
blade 6 is positioned to maintain the patient's tongue 30 so a
clear passage to the patient's pharynx 50, epiglottis 54,
vallecula, 58, etc. is provided to the surgeon.
[0024] While various embodiments of the present invention have been
described in detail, it is apparent that modifications and
alterations of those embodiments will occur to those skilled in the
art. It is to be expressly understood that such modifications and
alterations are within the scope and spirit of the present
invention, as set forth in the following claims. Further, it is to
be understood that the invention(s) described herein is not limited
in its application to the details of construction and the
arrangement of components set forth in the preceding description or
illustrated in the drawings. The invention is capable of other
embodiments and of being practiced or of being carried out in
various ways. Also, it is to be understood that the phraseology and
terminology used herein is for the purpose of description and
should not be regarded as limiting. The use of "including,"
"comprising," or "having" and variations thereof herein is meant to
encompass the items listed thereafter and equivalents thereof as
well as additional items.
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