US20130197313A1 - Surgical retractor with light - Google Patents

Surgical retractor with light Download PDF

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Publication number
US20130197313A1
US20130197313A1 US13362029 US201213362029A US2013197313A1 US 20130197313 A1 US20130197313 A1 US 20130197313A1 US 13362029 US13362029 US 13362029 US 201213362029 A US201213362029 A US 201213362029A US 2013197313 A1 US2013197313 A1 US 2013197313A1
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Prior art keywords
blade
surgical retractor
shaft
upper surface
retractor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US13362029
Inventor
Shaw P. Wan
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Shaw P. Wan
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A61B17/0293Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors with ring member to support retractor elements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/06Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
    • A61B1/0661Endoscope light sources
    • A61B1/0676Endoscope light sources at distal tip of an endoscope
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/06Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
    • A61B1/0661Endoscope light sources
    • A61B1/0684Endoscope light sources using light emitting diodes [LED]
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/32Devices for opening or enlarging the visual field, e.g. of a tube of the body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/36Image-producing devices or illumination devices not otherwise provided for
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00002Operational features of endoscopes
    • A61B1/00025Operational features of endoscopes characterised by power management
    • A61B1/00027Operational features of endoscopes characterised by power management characterised by power supply
    • A61B1/00032Operational features of endoscopes characterised by power management characterised by power supply internally powered
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00681Aspects not otherwise provided for
    • A61B2017/00734Aspects not otherwise provided for battery operated
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/30Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
    • A61B2090/309Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure using white LEDs

Abstract

A surgical retractor has a shaft with an integral blade. The shaft and the blade are joined at an angle. The blade has an upper surface. A plurality of LED lights are embedded within the blade and are exposed at the upper surface. The blade surrounding the LED lights is opaque. The retractor may further include a camera mounted on the blade. Also disclosed is a surgical retractor kit including a mounting ring, at least one of the aforementioned surgical retractors, and a coupler for releaseably mounting the retractor to the ring.

Description

    FIELD OF THE INVENTION
  • A surgical retractor with a light is disclosed herein below.
  • BACKGROUND OF THE INVENTION
  • Surgical retractors with lights are known. For example, see: U.S. Pat. No. 4,562,832 (Wilder), US Publication No. 2007/0060795 (Vayser), and U.S. Pat. Nos. 7,384,392 & 8,012,089 (both to Bayat). Wilder discloses a retractor with a flexible light pipe. Vayser, in FIG. 1, shows a retractor 1 with a LED (light emitting diode) light 3 and a battery 4. The LED and battery are “all mounted on a strip of tape 8.” Vayser, Paragraph 10. Thus, as the invention is described in the independent claims, the lighting components are ‘releasably securable’ to the retractor. Bayat, on the other hand, shows in FIG. 7, a plurality of LED's 120 along the longitudinal axis of the blade and discloses that the LEDs may be located ‘within the profile of the blade.’ Bayat '392, column 4, lines 45-58; and Bayat '089, the paragraph bridging columns 5 and 6. Bayat goes on to say that the ‘blade near the light is constructed of a translucent or transparent material to allow the light to pass through the blade.’ Ibid. Bayat '089 also discloses a camera 136, see FIG. 7, as part of the retractor.
  • While these retractors are a solution to the problem of providing a light on a retractor, there is room for improvement. The retractor disclosed below is an improvement over these known retractors with a light.
  • SUMMARY OF THE INVENTION
  • A surgical retractor has a shaft with an integral blade. The shaft and the blade are joined at an angle. The blade has an upper surface. A plurality of LED lights are embedded within the blade and are exposed at the upper surface. The blade surrounding the LED lights is opaque. The retractor may further include a camera mounted on the blade. Also disclosed is a surgical retractor kit including a mounting ring, at least one of the aforementioned surgical retractors, and a coupler for releaseably mounting the retractor to the ring.
  • DESCRIPTION OF THE DRAWINGS
  • For the purpose of illustrating the invention, there is shown in the drawings a form that is presently preferred; it being understood, however, that this invention is not limited to the precise arrangements and instrumentalities shown.
  • FIG. 1 is an illustration of a first embodiment of the present invention.
  • FIG. 2 is an enlarged illustration of a part of the first embodiment.
  • FIG. 3 is an enlarged illustration of the first embodiment with parts shown in phantom to illustrate certain internal components.
  • FIG. 4 is a sectional view taken along section lines 4-4 of FIG. 2.
  • FIG. 5 is a sectional view taken along section lines 5-5 of FIG. 2.
  • FIG. 6 is an illustration of a second embodiment of the present invention.
  • FIG. 7 is an illustration of the second embodiment with a power source attached thereto.
  • FIG. 8 is an illustration of a third embodiment of the present invention.
  • FIG. 9 is an illustration of a fourth embodiment of the present invention.
  • DESCRIPTION OF THE INVENTION
  • Referring to the figures, where like numerals refer to like elements, there is shown in FIG. 1 a first embodiment of the surgical retractor 10. Retractor 10 has a shaft 12 and a blade 14. Shaft 12 and blade 14 are joined together at an angle, are integral, and the angle may be adjustable (that is the angle between the blade and the shaft may be changed by, for example, bending by hand or by the inclusion of a pivoting mechanism (not shown)). In this embodiment, the angle may be 90° (but may be at other angles, e.g., 45-135°, or 55-115°, or 55-85°). Additionally, shaft 12 may be telescoping (not shown), so that it's length may be changed. The material may be opaque (i.e., non-light transmitting or non-transparent). The blade and shaft may be made of any material, metal or plastic. The material may be chosen so that the retractor is autoclaveable. The plastics may be: polyolefins (e.g., polypropylene, ultra high molecular weight polyethylene), polyamides, perfluoroelastomers, polycarbonates, polyetheretherketones (PEEKs), polyphenyl sulfones, acetals, and/or thermoplastic elastomers (e.g., EDPM rubber crosslinked with polypropylene). One such material may be ULTEM HU1004 (PEEK) available from Sabic Innovative Plastics of Pittsfield, Mass.
  • The blade 14 has an upper surface 16 that may be concave (or flat, or convex). A plurality (at least two) of LED (light emitting diode) lights 18 may be disposed along the longitudinal axis of the blade 14. In this embodiment, four lights 18 are shown in-line along the axis; however, other configurations of these lights are possible (e.g., multiple rows and/or columns or other geometric configurations). The LED lights 18 face up from the upper surface 16. Face up as used herein means that the major axis of the LED light may be at any angle from 1 to 179° (or 45 to 135°) from the plane of the upper surface 16. The LED lights 18 may each face up at differing angles.
  • A second surface 20 may also be associated with the upper surface 16 and is located on that portion of the upper surface 16 closer to the shaft 12. This second surface 20 is disposed on the upper surface 16 at an angle and is located behind the LED lights 18. The angle may be such that second surface 20 faces away from the upper surface 16.
  • The shaft 12 and the blade 14 have a common lower surface 21. A channel 22 is cut into the lower surface 21 of the blade 14 and the shaft 12. The channel 22 houses electrical connectors 26 (for example, see FIG. 3) that connect the LED lights 18 with a power source. The channel 22 is closed and sealed with a closure member 26. The closure member 26 may be flush with the lower surface 21. The closure member 26 may be sealed in the channel 22 by use of an adhesive. The adhesive may be any adhesive, it may be autoclaveable. Such adhesives may be epoxies or polyurethanes. One such adhesive maybe Locite's HYSOL M-21HP or M-121HP available from Henkel Corporation of Rocky Hill, Conn.
  • The lower surface of the blade (not shown) may also have either a smooth surface or a gripping surface. The gripping surface may be used to maintain the retractor in place when inserted into the patient. The gripping surface (e.g., non-skid) may be, for example, roughened or ribbed.
  • In the first embodiment 10, the electrical connectors 26 may be in communication with a cord 30 that is used to connect with a remote power source, as will be understood by those of ordinary skill. Alternatively, the first embodiment may be battery powered as discussed below with regard to the second embodiment (and all of the variants of the second embodiment, discussed below, may be incorporated with the first embodiment).
  • A gripping surface 28 is located at the lower end of the shaft 12. The gripping surface 28 may be adapted for gripping by hand or with clamps.
  • Referring to FIGS. 2, 4, and 5, the placement of LED lights 18 is explained. In FIG. 4, LED light 18 has a lens 32 mounted on a base 34. At least a portion of the lens 32 of the LED light 18 may be exposed at surface 16. The outer surface of the lens 32 may be flush with upper surface 16 or may protrude above upper surface 16 (as shown in FIGS. 4 and 5). The LED light 18 is sealed within the blade 14 and there is no cover or blade material enclosing the LED light 18. The base 34 may be contained within channel 22. The electrical connectors 26 may be attached to the base 34.
  • The LED light 18 may be sealed in the channel 22 by use of an adhesive. The adhesive may be any adhesive, it may be autoclaveable. Such adhesives may be epoxies or polyurethanes. One such adhesive maybe Loctite's HYSOL M-21 HP or M-121HP available from Henkel Corporation of Rocky Hill, Conn.
  • The LED lights 18 may produce at least 90 lumens (or at least 180 lumens of light). The LED lights 18 may be autoclaveable. The LED lights 18 may be on a dimmer switch. The LED light may be a LUXEON Rebel LXML-PWC1-0090 available from Philips Lumileds Lighting Co. of San Jose, Calif.
  • A camera 23 may be included in the retractor 10 (see FIGS. 2 and 3). Camera 23 may be a still camera or a motion camera. This camera may be based upon CCD (charged-coupled device) technology. In this embodiment, the camera 23 may be placed in the blade 14 on the second surface 20 behind LED lights 18. In this placement, the camera's field of vision is directed generally down the length of blade 14 and angled away from the upper surface 16, so that the camera 23 is looking at the operative field. This angle (as measured from behind surface 20) may be from 5-90°, or 15-80°, or 30-75°. Thus, the LED lights 18 illuminate, while the camera 23 sees the illuminated area. The camera 23 may transmit/store images in any fashion, i.e., via cable, or wireless transmission, or retained in a memory device for later retrieval.
  • Referring to FIGS. 6 and 7, a second embodiment of the surgical retractor 10′ is shown. Generally, second embodiment 10′ is similar to first embodiment 10; accordingly, the discussion of the first embodiment 10 is included herein. This embodiment may be used ‘hands-free,’ that is the retractor remains in place without additional securement (hand-held or mechanical) by the weight of the retractor when the blade is inserted into an orifice (such as a vagina or an anus).
  • Surgical retractor 10′ has a shaft 12 and a blade 14. Shaft 12 and blade 14 are joined together at an angle, are integral, and the angle may be adjustable (that is the angle between the blade and the shaft may be changed by, for example, bending by hand or by a pivoting mechanism (not shown)). Additionally, a pair of re-enforcing wings 36 may be located at the intersection of the shaft 12 and the blade 14. In this embodiment, the angle may be 45-135°, or 55-115°, or 55-85° (but may be at other angles, e.g., 90°. Additionally, shaft 12 may be telescoping (not shown), so that it's length may be changed. The blade and shaft may be made of any material, metal or plastic. This material may be opaque (i.e., non-light transmitting or non-transparent). The material may be chosen so that the retractor is autoclaveable. The plastics may be: polyolefins (e.g., polypropylene, ultra high molecular weight polyethylene), polyamides, perfluoroelastomers, polycarbonates, polyetheretherketones (PEEKs), polyphenyl sulfones, acetals, and/or thermoplastic elastomers (e.g., EDPM rubber crosslinked with polypropylene). One such material may be ULTEM HU1004 (PEEK) available from Sabic Innovative Plastics of Pittsfield, Mass.
  • The blade 14 has an upper surface 16 that may be concave (or flat or convex). A plurality (at least two) of LED (light emitting diode) lights 18 may be disposed along the longitudinal axis of the blade 14. In this embodiment, four lights 18 are shown in-line along the axis; however, other configurations of these lights are possible (e.g., multiple rows and/or columns or other geometric configurations). The LED lights 18 face up from the upper surface 16. Face up as used herein means that the major axis of the LED light may be at any angle from 1 to 179° (or 45 to 135°) from the plane of the upper surface 16. The LED lights 18 may each face up at differing angles. Further, details on the placement of the LED lights 18 may be found in the discussion of FIGS. 2-5 above.
  • A second surface 20 may also be associated with the upper surface 16 and is located on that portion of the upper surface 16 closer to the shaft 12. This second surface 20 is disposed on the upper surface 16 at an angle and is located behind the LED lights 18. The angle may be such that second surface 20 faces away from the upper surface 16.
  • The shaft 12 and the blade 14 have a common lower surface 21. A channel 22 is cut into the lower surface 21 of the blade 14 and the shaft 12. The channel 22 houses electrical connectors 26 (for example, see FIG. 3) that connect the LED lights 18 with a power source. The channel 22 is closed and sealed with a closure member 26. The closure member 26 may be flush with the lower surface 21. The closure member 26 may be sealed in the channel 22 by use of an adhesive. The adhesive may be any adhesive, it may be autoclaveable. Such adhesives may be epoxies or polyurethanes. One such adhesive maybe Locite's HYSOL M-21HP or M-121HP available from Henkel Corporation of Rocky Hill, Conn.
  • The lower surface of the blade (not shown) may also have either a smooth surface or a gripping surface. The gripping surface may be used to maintain the retractor in place when inserted into the patient. The gripping surface (e.g., non-skid) may be, for example, roughened or ribbed.
  • In the second embodiment 10′, the electrical connectors 26 are in communication with a power source 38 removeably mounted on shaft 12. Power source 38 may contain batteries 42 and may be removeably mounted onto shaft 12 via a clamp 40. Additionally, this power source provides a weight, so that the retractor 10′ may be used hands-free, as discussed above. Furthermore, this power source 38 is removeable from shaft 12. Thus, retractor 10′ may be autoclaved without the power source 38. Power source 38 may be autoclaved without the batteries 42. In this situation, a sterile sleeve (not shown) may be used to insert batteries 42 into the sterile power source 38.
  • A camera (not shown), as discussed above, may be included in the retractor 10′. This camera may be a still camera or a motion camera. This camera may be based upon CCD (charged-coupled device) technology. In this embodiment, the camera may be placed in the blade 14 on the second surface 20 behind LED lights 18. In this placement, the camera's field of vision is directed generally down the length of blade 14 and angled away from the upper surface 16, so that the camera 23 is looking at the operative field. This angle (as measured from behind surface 20) may be from 5-90°, or 15-80°, or 30-75°. Thus, the LED lights 18 illuminate, while the camera 23 sees the illuminated area. The camera 23 may transmit/store images in any fashion, i.e., via cable, or wireless transmission, or retained in a memory device for later retrieval.
  • Additional variants of the second embodiment (not shown) may include: the battery source permanently fixed to the retractor; the battery source and retractor being a single, integral unit; a remote power source (as described above) with a removable weight; a remote power source (as described above) with a non-removable weight.
  • Referring to FIG. 8, a third embodiment of the surgical retractor 10″ is shown. All of the features of the first embodiment 10 and the second embodiment 10′ may be included in the third embodiment 10″. The third embodiment 10″ may be generally referred to as the speculum embodiment. Retractor 10″ includes retractor 10 and a second arm 43 moveably affixed to retractor 10. Retractor 10 may be the same as previously described retractors 10 and/or 10′; accordingly, further detail discussion may be found above.
  • The second arm 43 includes a second shaft 46 joined to second blade 44. Construction of these mating shafts should be such that visualization by the medical professional is not unduly obstructed. In this regard, reference is made to a standard ‘duck bill’ speculum, incorporated herein by reference. Second arm 43 may be moveable along shaft 12 of retractor 10, so that blades 14 and 44 may be spaced apart. Further, blades 14 and 44 may be hinged (not shown) on shafts 12 and 46, respectively; so that the distal tips of blades 14 and 44 may be spread apart further than the hinged portions of the blades 14 and 44. Blade 44 is shown as having a concave surface with LED lights, but other configurations are possible (e.g., no lights and no concave surface).
  • Referring to FIG. 9, a fourth embodiment, a surgical retractor kit 48 is shown. All of the features of the first embodiment 10, the second embodiment 10′, and the third embodiment 10″ may be included in the surgical retractor kit 48. The surgical retractor kit 48 may be generally referred to as a self retaining retractor system. The surgical retractor kit 48 generally includes a plurality (at least two) retractors 10 (previously discussed retractor 10′ may used instead), and a holder set 49. Holder set 49 may include a stand 50, arm 52, clamps 54 for fixing and securing the stand 50 and arm 52 in place, mounting ring 56 for placement of the retractors 10, ring clamp 58, and couplers 60 for fixing the retractors in place on mounting ring 56.
  • The present invention may be embodied in other forms without departing from the spirit and the essential attributes thereof, and, accordingly, reference should be made to the appended claims, rather than to the foregoing specification, as indicating the scope of the invention.

Claims (19)

    I claim:
  1. 1. A surgical retractor comprising:
    a shaft with an integral blade, the shaft and the blade being joined at an angle, the blade having an upper surface, a plurality of LED lights being embedded within the blade and exposed at the upper surface, the blade surrounding the LED lights being opaque.
  2. 2. The surgical retractor of claim 1 wherein each of the LED lights comprises a lens and a LED, the lens being exposed at the upper surface.
  3. 3. The surgical retractor of claim 1 wherein each of the LED lights being flush with the upper surface or protruding above the upper surface.
  4. 4. The surgical retractor of claim 1 wherein the plurality of LED lights emit at least 90 lumens.
  5. 5. The surgical retractor of claim 1 wherein the blade and shaft having a lower surface with an integral channel therein and a closure member covering the channel.
  6. 6. The surgical retractor of claim 1 wherein the channel houses electrical connectors for the LED lights.
  7. 7. The surgical retractor of claim 1 further comprising a power source for the LED lights in communication with the electrical connectors, and the power source being either carried on the shaft or remote from the shaft.
  8. 8. The surgical retractor of claim 1 further comprising a gripping surface on the shaft.
  9. 9. The surgical retractor of claim 1 wherein the angle between the shaft and the blade being adjustable.
  10. 10. The surgical retractor of claim 1 wherein the shaft being telescoping.
  11. 11. The surgical retractor of claim 1 further comprising a second blade facing the first mentioned blade and being moveable to and from the previous mentioned blade.
  12. 12. The surgical retractor of claim 1 wherein the upper surface being concave.
  13. 13. The surgical retractor of claim 1 further comprising a camera being mounted on the blade.
  14. 14. The surgical retractor of claim 13 wherein the camera being mounted in a second surface adjacent to the upper surface.
  15. 15. A surgical retractor kit comprising a mounting ring, at least one surgical retractor according to claim 1, and a coupler for releaseably mounting the retractor to the ring.
  16. 16. A surgical retractor comprising:
    a shaft with an integral blade, the shaft and the blade being joined at an angle, the blade having an upper surface, a plurality of lights facing up from the upper surface, a second surface at an angle to the upper surface, and a camera disposed in the second surface, wherein the camera faces down the blade and away from the upper surface.
  17. 17. The surgical retractor of claim 16 where the camera being a CCD camera.
  18. 18. The surgical retractor of claim 16 where the lights being LED lights.
  19. 19. The surgical retractor of claim 16 where the angle being 5-90°.
US13362029 2012-01-31 2012-01-31 Surgical retractor with light Abandoned US20130197313A1 (en)

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US13362029 US20130197313A1 (en) 2012-01-31 2012-01-31 Surgical retractor with light
PCT/US2013/024098 WO2013116489A1 (en) 2012-01-31 2013-01-31 Surgical retractor with light
US14372484 US9730685B2 (en) 2012-01-31 2013-01-31 Surgical retractor with light
EP20130742965 EP2809240A4 (en) 2012-01-31 2013-01-31 Surgical retractor with light

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US9730685B2 (en) 2017-08-15 grant

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