Holding tray and clamp assembly for an endoscopic sheath

• US 5,520,607 A
• Filed: 03/04/1994
• Issued: 05/28/1996
• Est. Priority Date: 03/04/1994
• Status: Expired due to Term

• Current Assignee: Vision-Sciences Incorporated (2941881 Canada, Inc.)
• Original Assignee: Vision-Sciences Incorporated (2941881 Canada, Inc.)
• Inventors: Ryan, James P., Ailinger, Robert, Frassica, Jim
• Primary Examiner(s): Apley, Richard J.
• Assistant Examiner(s): FLANAGAN, BEVERLY MEINDL
• Application Number:
  US08/207,034
• Time in Patent Office: 816 Days
• Field of Search: 128/4, 128/6, 433/49, 312/209, 248/50, 248/56, 248/58, 248/62, 248/75, 248/80, 248/95, 248/99, 269/329, 269/902, 269/909, 206/363, 206/438, 206/440, 206/69, 604/403, 600/101, 600/102
• US Class Current: 600/102
• CPC Class Codes: A61B 1/00142 with means for preventing contamination, e.g. by using a sanitary sheath
• CPC Class Codes: A61B 46/10 specially adapted for instruments, e.g. microscopes

Abstract

A holding tray assembly for holding an endoscopic sheath during installation of the sheath onto an insertion tube of an endoscope and removal of the sheath from the insertion tube, wherein the sheath has a distal end and an open proximal end shaped to receive the insertion tube. The holding tray assembly has a tray with a slot formed therein extending inward from the peripheral edge of the tray. The slot is adapted to receive at least a portion of the endoscopic sheath so the proximal end of the sheath is positioned above the tray and the distal end of the sheath is below the tray. A sheath holding clamp is connected to the tray adjacent to a closed end of the slot, wherein the sheath holding clamp is adapted to releasably hold at least a portion of the endoscopic sheath within the slot. A tray securing apparatus is connected to the tray and is adapted to secure the tray onto a floor stand or other tray support structure. An endoscope holding assembly is connected to the tray to removably hold the endoscope during installation and removal of the endoscopic sheath. A bag removably surrounds and isolates the components of the holding tray assembly. At least a portion of the bag extends through the slot and is adapted to receive the sheath.

Claims

1. A holding tray assembly for holding an endoscopic sheath during installation of the sheath onto an insertion tube of an endoscope and removal of the sheath from the insertion tube, wherein the sheath has a distal end and an open proximal end shaped to receive the insertion tube, comprising:

a tray having a aperture formed therein, said aperture sized to receive at least a portion of the endoscopic sheath and to allow the insertion tube to extend through said aperture with the proximal end of said sheath positioned above said tray and the distal end of said sheath positioned below said tray;

a sheath holding apparatus connected to said tray adjacent to said aperture, said holding apparatus being adapted to releasably hold at least a portion of the endoscopic sheath within said aperture; and

a tray securing apparatus connected to said tray and adapted to secure said tray onto a tray support structure.

2. The holding tray assembly of claim 1 wherein said aperture is a slot extending from a peripheral edge of said tray to an end of said slot adjacent to said sheath holding apparatus, said slot having a sufficient width to receive said sheath so that said sheath can be loaded into said aperture from the side of said tray.

3. The holding tray assembly of claim 1 wherein said tray has a substantially flat work surface having a perimeter and a raised lip around said perimeter to form a tray adapted to contain material thereon.

4. The holding tray assembly of claim 1 wherein said tray has a top surface, a bottom surface, and a reinforcing plate mounted to said bottom surface.

5. The holding tray assembly of claim 4 wherein said reinforcing plate has an aperture located in a position corresponding to said aperture in said tray.

6. The holding tray assembly of claim 1 wherein said tray is made of a non-porous material.

7. The holding tray assembly of claim 1 wherein said tray is an acrylic and plastic composite.

8. The holding tray assembly of claim 1 wherein said tray is metal.

9. The holding tray assembly of claim 1 wherein said sheath holding apparatus is a clamp assembly.

10. The holding tray assembly of claim 9 wherein said clamp assembly has at least one movable clamping jaw adapted to move between an open release position and a closed clamping position, said movable clamping jaw being biased to said closed clamping position.

11. The holding tray assembly of claim 10 wherein said movable clamping jaw is biased by a spring.

12. The holding tray assembly of claim 9 wherein said clamping assembly further comprises a handle mechanism coupled to said movable clamping jaw and adapted to move said jaw between said open and closed positions.

13. The holding tray assembly of claim 1 wherein said tray securing apparatus is a clamp adapted to removably secure said holding tray assembly to a support structure.

14. The holding tray assembly of claim 1 wherein said tray securing apparatus is a pin assembly adapted to pivotally fit in a pin receiving area mounted on a tray support structure.

15. The holding tray assembly of claim 14 wherein said pin assembly is attached to said tray at a position offset from the center of said tray so said holding tray assembly can be pivoted to a plurality of positions relative to the tray support structure.

16. The holding tray assembly of claim 1 wherein said tray securing apparatus is movably connected to said holding tray and adapted so said holding tray can be moved between a substantially horizontal working position and a substantially vertical stored position.

17. The holding tray assembly of claim 1 further comprising a cover removably connected to said tray so as to substantially surround said tray, at least a portion of said cover being positioned in said aperture and being adapted to receive at least a portion of said endoscopic sheath.

18. The holding tray assembly of claim 17 wherein said removable cover assembly is a bag.

19. The holding tray assembly of claim 17 wherein said aperture in said tray has a clearance area adapted to receive excess cover material located within said aperture.

20. The holding tray assembly of claim 18 wherein said bag is a T-shaped bag having a narrow portion and a wide portion, said narrow portion being adapted to be positioned in said aperture and to receive at least a portion of said endoscopic sheath, and said wide portion being adapted to substantially cover said tray.

21. The holding tray assembly of claim 1, further comprising an endoscope holding assembly coupled to said tray, said holding assembly being shaped and sized to removably hold the endoscope during installation and removal of the endoscopic sheath.

22. A holding tray assembly for holding an endoscopic sheath during installation of the sheath onto an insertion tube of an endoscope and removal of the sheath from the insertion tube, wherein the sheath has a distal end and an open proximal end shaped to receive the insertion tube, comprising:

a tray having an aperture therein;

a sheath holding apparatus connected to said tray adjacent to said aperture, said holding apparatus being adapted to releasably hold the open proximal end of the sheath adjacent to said aperture;

a tray securing assembly connected to said tray and adapted to secure said tray onto a tray support structure;

an endoscope holding assembly coupled to said tray and adapted to removably hold the endoscope during installation and removal of the endoscopic sheath; and

a cover removably surrounding said tray, said cover at least partially extending through said aperture.

23. The holding tray assembly of claim 22 wherein said aperture is a slot extending from a peripheral edge of said tray to an end of said slot adjacent to said sheath holding apparatus, said slot having a sufficient width to receive said sheath so that said sheath can be loaded into said aperture from the side of said tray.

24. The holding tray assembly of claim 22 wherein said tray has a reinforcing plate connected thereto.

25. The holding tray assembly of claim 23 wherein said tray has a substantially flat work surface having a perimeter and a raised lip around said perimeter to form a tray adapted to contain material thereon.

26. A method for installing an endoscopic sheath onto an insertion tube of an endoscope and for removing the endoscopic sheath from the insertion tube, the endoscopic sheath having a distal end and an open proximal end adapted to receive at least a portion of the insertion tube, comprising the steps of:

positioning a tray device mounted on a support structure in a desired position, wherein the tray has an aperture adapted to receive at least a portion of the endoscopic sheath;

inserting at least a portion of the endoscopic sheath into the aperture so the open proximal end of the endoscopic sheath is adjacent to the aperture;

removably securing the sheath in an operable position with a securing mechanism to hold the sheath so at least a portion of the sheath extends through the aperture slot and so the open proximal end is above the tray device;

installing the insertion tube of the endoscope in the sheath, thereby forming a sheathed endoscope unit;

removing the sheathed endoscope unit from the tray;

performing a procedure with the sheathed endoscopic unit;

placing the sheathed endoscopic unit into tray so the sheath is removably secured by the securing mechanism; and

removing the insertion tube from the sheath.

27. The method of claim 26 wherein said step of removably securing said sheath in an operable position comprises clamping said sheath in the operable position with a clamp mechanism coupled to the tray.

28. The method of claim 26 further comprising the steps of removing the sheath from the tray device.

29. The method of claim 26 further comprising the step of covering said tray with a cover so at least a portion of the cover means extends through the aperture adjacent to the securing mechanism.

30. The method of claim 29 further comprising the step of removing the cover from the tray device.