Surgical stretcher

• US 6,076,208 A
• Filed: 07/14/1997
• Issued: 06/20/2000
• Est. Priority Date: 07/14/1997
• Status: Expired due to Term

• Current Assignee: Hill-Rom Services Incorporated (Baxter International Inc.)
• Original Assignee: Hill-Rom Incorporated (Baxter International Inc.)
• Inventors: Walke, James L., Heimbrock, Richard H., Minnelli, Patrick J.
• Primary Examiner(s): TRETTEL, MICHAEL
• Application Number:
  US08/892,147
• Time in Patent Office: 1,072 Days
• Field of Search: 5/612, 5/613, 5/617, 5/622, 5/183, 5/185
• US Class Current: 5/613
• CPC Class Codes: A61B 90/60 Supports for surgeons, e.g. chairs or hand supports seats for dentists or surgeons associated with dental chairs or operating chairs A61G15/00
• CPC Class Codes: A61G 1/0225 other configuration, e.g. odd number of wheels
• CPC Class Codes: A61G 1/0243 with lockable swivel action, e.g. fixing castor in certain direction locking of castor swivel action in general B60B33/02
• CPC Class Codes: A61G 1/0268 having deployable or retractable wheels
• CPC Class Codes: A61G 1/0287 having brakes, e.g. slowing down and/or holding details of brake actuators on castors B60B33/0078; brakes on hand carts B62B5/04; brakes in general F16D49/00 - F16D65/853
• CPC Class Codes: A61G 13/101 Clamping means for connecting accessories to the operating table supports as part of surgical instruments A61B90/50
• CPC Class Codes: A61G 13/12 Rests specially adapted therefor; Arrangements of patient-supporting surfaces rests for the surgeon A61B90/60; restraining devices A61F5/37
• CPC Class Codes: A61G 13/121 Head or neck
• CPC Class Codes: A61G 13/1235 Arms
• CPC Class Codes: A61G 13/124 Hands or wrists
• CPC Class Codes: A61G 13/1245 Knees, upper or lower legs
• CPC Class Codes: A61G 13/1275 having air-evacuated chambers in order to adapt to the form of the patient for preventing bed-sores A61G7/05753
• CPC Class Codes: A61G 13/129 having surface parts for adaptation of the size, e.g. for extension or reduction tables with different adjustable sections A61G13/08
• CPC Class Codes: A61G 7/00 Beds specially adapted for nursing; Devices for lifting patients or disabled persons stretchers with facilities for picking up patients or disabled persons A61G1/003
• CPC Class Codes: A61G 7/05753 air-evacuated, e.g. in order to adapt to the form of the patient air-evacuated splints A61F5/05833
• CPC Class Codes: Y10S 5/913 with suction means
• CPC Class Codes: Y10T 74/20888 Pedals

Abstract

A surgical stretcher includes a patient-support deck having a substantially planar back section coupled to a frame for pivoting movement about a transverse pivot axis. The back section includes a frame member having first and second corner portions. The first corner portion is transversely spaced apart from the second corner portion, and the first and second corner portions are longitudinally spaced apart from the transverse pivot axis. An actuator couples the back section to the frame. The actuator is lockable to prevent pivoting movement of the back section relative to the frame, and is releasable to allow pivoting movement of the back section relative to the frame. A release rod is coupled to the back section and movable to release the actuator. The release rod has a first handle portion situated substantially in the plane of the back section and positioned to lie in close proximity to the first corner portion of the frame member of the back section so that the first corner portion and the first handle portion can be grasped simultaneously, and a second handle portion situated substantially in the plane of the back section and positioned to lie in close proximity to the second corner portion of the frame member of the back section so that the second corner portion and the second handle portion can be grasped simultaneously.

Claims

1. An apparatus for supporting a patient, the apparatus comprising

a frame,

a patient-support deck including a back section coupled to the frame for pivoting movement about a transverse pivot axis, the back section being situated in a plane and including a frame member having first and second corner portions, the first corner portion being transversely spaced apart from the second corner portion, and the first and second corner portions being longitudinally spaced apart from the transverse pivot axis,

an actuator coupling the back section to the frame, the actuator being lockable to prevent pivoting movement of the back section relative to the frame and the actuator being releasable to allow pivoting movement of the back section relative to the frame,

a release rod coupled to the back section and movable to release the actuator, the release rod having a first handle portion situated substantially in the plane of the back section and positioned to lie in close proximity to the first corner portion of the frame member of the back section so that the first corner portion and the first handle portion can be grasped simultaneously and a second handle portion situated substantially in the plane of the back section and positioned to lie in close proximity to the second corner portion of the frame member of the back section so that the second corner portion and the second handle portion can be grasped simultaneously.

2. The apparatus of claim 1, wherein the release rod is coupled to the back section by a pivot block, the pivot block being formed to include a generally transverse channel, the release rod having a middle portion received within the channel of the pivot block, the actuator having a portion received within the channel of the pivot block, the middle portion of the release rod engaging the actuator within the channel so that actuation of the first handle portion moves the middle portion of the release rod within the channel to release the actuator and so that actuation of the second handle portion moves the middle portion of the release rod within the channel to release the actuator.

3. The apparatus of claim 2, wherein the pivot block includes first and second fulcrum points, movement of the first handle portion of the release rod toward the first corner portion of the tubular frame member pivots the release rod about the first fulcrum point, and movement of the second handle portion of the release rod toward the second corner portion of the tubular frame member pivots the release rod about the second fulcrum point.

4. The apparatus of claim 2, wherein the middle portion of the release rod received in the channel of the pivot block is bent.

5. The apparatus of claim 4, further comprising a plate coupled to the pivot block and covering the channel so that the bent portion of the release rod is trapped within the channel between the pivot block and the plate.

6. The apparatus of claim 4, wherein the channel in the pivot block includes a plurality of side walls that define the channel and the bent portion of the release rod is constrained from moving transversely out of the channel of the pivot block by the side walls of the pivot block.

7. The apparatus of claim 1, wherein the actuator is a gas spring having a plunger movable between a locking position wherein the gas spring is locked and a releasing position wherein the gas spring is released, the release handle engaging the plunger so that movement of the release handle moves the plunger from the locking position to the releasing position.

8. The apparatus of claim 7, wherein the release rod is coupled to the back section by a pivot block, the pivot block being formed to include a generally transverse channel, the release rod having a middle portion received within the channel of the pivot block, the plunger having a portion received within the channel of the pivot block, the middle portion of the release rod engaging the plunger within the channel so that actuation of the first handle portion moves the middle portion of the release rod within the channel to move the plunger to the releasing position and so that actuation of the second handle portion moves the middle portion of the release rod within the channel to move the plunger to the releasing position.

9. The apparatus of claim 8, wherein the pivot block includes first and second fulcrum points, movement of the first handle portion of the release rod toward the first corner portion of the frame member pivots the release rod about the first fulcrum point to move the plunger to the releasing position, and movement of the second handle portion of the release rod toward the second corner portion of the frame member pivots the release rod about the second fulcrum point to move the plunger to the releasing position.

10. The apparatus of claim 1, further comprising an extender board and a releasing assembly coupled to the extender board, the extender board being coupled to the back section for pivoting movement relative to the back section, the releasing assembly including a plunger rod and a release lever engaging the plunger rod so that movement of the release lever moves the plunger rod, the extender board having a position in which movement of the plunger rod moves the release rod to release the actuator allowing the back section to pivot relative to the frame about the transverse pivot axis.

11. The apparatus of claim 1, further comprising a bracket coupled to the back section for pivoting movement about a first pivot axis and a head rest coupled to the bracket for pivoting movement about a second pivot axis, the release rod is coupled to the back section between the first pivot axis and the second pivot axis, and the first pivot axis is positioned to lie between the release rod and the transverse pivot axis of the back section.

12. An apparatus for supporting a patient, the apparatus comprising

a frame,

an articulated patient-support deck including a back section coupled to the frame for pivoting movement about a transverse pivot axis, the back section having first and second longitudinal sides and a transverse end extending between the sides, the back section having a substantially planar back-support surface,

an actuator coupling the back section to the base frame, the actuator being lockable to prevent pivoting movement of the back section relative to the frame and the actuator being releasable to allow pivoting movement of the back section relative to the frame,

a release rod coupled to the back section and coupled to the actuator so that actuation of the release rod releases the actuator so that the back section can pivot relative to the frame,

an extender board having an extension surface substantially coplanar with the back-support surface, the extender board being coupled to one of the sides of the back section for pivoting movement relative to the back section, and

a releasing assembly coupled to the extender board, the releasing assembly including a plunger rod and a release lever engaging the plunger rod so that movement of the release lever moves the plunger rod, the extender board having a first position in which movement of the plunger rod of the release assembly moves the release rod to release the actuator so that the back section can pivot relative to the frame.

13. The apparatus of claim 12, wherein the transverse end of the back section is between the plunger rod and the transverse pivot axis of the back section when the extender board is in the first position.

14. The apparatus of claim 13, wherein the plunger rod is between the release lever and the transverse end of the back section when the extender board is in the first position.

15. The apparatus of claim 12, wherein the extender board includes a frame having a portion formed to include a chamber and the plunger rod is received in the chamber for sliding movement relative to the extender board.

16. The apparatus of claim 15, wherein the release lever includes a first end received in the chamber, a second end providing a handle portion, and a middle portion coupled to the extender board for pivoting movement.

17. The apparatus of claim 16, wherein the frame of the extender board includes a distal end portion, a side portion, and a corner portion connecting the distal end portion to the side portion and the handle portion of the release handle is positioned to lie in close proximity to the corner portion of the frame of the extender board so that the corner portion of the frame of the extender board and the handle portion of the release handle can be grasped simultaneously.

18. The apparatus of claim 15, further comprising a head rest coupled to the back section, the head rest having a longitudinally-extending side, and the portion of the frame of the extender board having the chamber that receives the plunger rod is adjacent to the side of the head rest when the extender board is in the first position.

19. The apparatus of claim 12, wherein the back section includes a frame having spaced apart side struts and an end strut connecting the side struts and further comprising a plunger, the end strut being formed to include an aperture that receives the plunger, and the plunger having a first end engaging the plunger rod and a second end engaging the release rod so that movement of the plunger rod moves the plunger to actuate the release rod.

20. The apparatus of claim 17, further comprising a post received by the aperture formed in the end strut, the post having an interior region that receives the plunger for sliding movement.

21. The apparatus of claim 20, further comprising a spring having a first end engaging the post and a second end engaging the plunger, the spring biasing the plunger into engagement with the release rod.

22. The apparatus of claim 20, further comprising a latch coupled to the extender board, the latch having a portion that engages the post to lock the extender board in the first position.

23. An apparatus for supporting a patent, the apparatus comprising

a frame,

a patient-support deck including a back section coupled to the frame for pivoting movement about a transverse pivot axis, the back section having first and second longitudinal sides and a transverse end extending between the sides, the back section having a substantially planar back-support surface,

an extender board having an extension surface substantially coplanar with the back-support surface, the extender board being coupled to one of the sides of the back section for pivoting movement relative to the back section,

an actuator coupling the back section to the base frame, the actuator being lockable to prevent pivoting movement of the back section relative to the frame and the actuator being releasable to allow pivoting movement of the back section relative to the frame,

a first releasing assembly coupled to the back section and coupled to the actuator, actuation of the first releasing assembly releasing the actuator so that the back section can pivot relative to the frame, and

a second releasing assembly coupled to the extender board, the extender board having a first position in which actuation of the second releasing assembly actuates the first releasing assembly to release the actuator so that the back section can pivot relative to the frame.

24. The apparatus of claim 23, further comprising a post coupled to the back section and a latch assembly including a latch having a portion that engages the post to lock the extender board in the first position.

25. The apparatus of claim 24, wherein the post includes an interior region and further comprising a plunger received in the interior region for reciprocating movement relative to the post, the second releasing assembly engaging the plunger, and the plunger engaging the first releasing assembly so that actuation of the second releasing assembly moves the plunger to actuate the first releasing assembly.

26. The apparatus of claim 24, wherein the back section includes a frame having spaced apart side struts and an end strut connecting the side struts, the post is coupled to the end strut, and the post extends away from the end strut.

27. An apparatus for supporting a patient, the apparatus comprising

a frame,

a patient-support deck coupled to the frame and including a back section having a transversely-extending end and two longitudinally-extending sides spaced apart by a first width,

a head rest coupled to the back section and positioned to lie adjacent to the transversely-extending end of the back section, the head section having two longitudinally-extending sides spaced apart by a second width smaller than the first width, and

a pair of spaced-apart extender boards, each extender board being coupled to the respective side of the back section for pivoting movement between a first position in which a first portion of the extender board is adjacent to one of the longitudinally-extending sides of the head section, a second portion of the extender board is adjacent to the transversely-extending end of the back section, and a third portion of the extender board is adjacent to one of the longitudinally-extending sides of the back section, and a second position in which the first portion of the extender board is moved away from the head section.

28. The apparatus of claim 27, wherein the back section includes a corner portion angling from each of the longitudinally-extending sides to the transverselyextending end, each extender board includes a fourth portion angling between the second and third portions, and the fourth portion of each extender board is adjacent to the respective corner portion of the back section when the respective extender board is in the first position.

29. The apparatus of claim 27, wherein the head rest includes an end extending transversely between the longitudinally-extending sides of the head rest, each of the extender boards includes a distal end portion extending away from the first portion, and the distal end portion of each extender board is substantially aligned with the end of the head rest when the respective extender board is in the first position.

30. The apparatus of claim 27, further comprising a pair of posts coupled to the back section and a latch assembly coupled to each extender board, each latch assembly including a latch plate having a tab, each latch plate having a locking position in which the tab engages the companion post to lock the respective extender board in the first position.

31. The apparatus of claim 30, wherein the tab of each latch plate is formed to include a cam edge that engages the companion post as the respective extender board is moved from the second position to the first position to move the latch plate from the locking position to a releasing position.

32. The apparatus of claim 31, wherein the latch assembly includes a spring that biases the latch plate into the locking position.

33. The apparatus of claim 32, wherein the back section includes a back-support surface, the extender board includes a top surface substantially coplanar with the back-support surface, the extender board includes a bottom surface spaced apart from and substantially parallel with the top surface, and the latch plate is coupled to the bottom surface of the extender board.

34. The apparatus of claim 33, wherein the latch plate includes a hand-engaging portion adjacent to a side portion of the extender board.

35. The apparatus of claim 33, wherein the latch plate includes a hand-engaging portion, the hand-engaging portion of the latch plate being movable toward the bottom surface of the extender board to move the latch plate from the locking position to the releasing position.

36. The apparatus of claim 30, wherein the tab of each latch plate engages the companion post between the transversely-extending end of the back section and the second portion of the respective extender board.

37. The apparatus of claim 30, wherein each extender board includes a frame providing the first portion of the respective extender board and each first portion is substantially aligned with the corresponding post when both extender boards are in their first positions.

38. The apparatus of claim 30, further comprising a pair of rails coupled to the back section and a locator post extending from each rail, each extender board being connected to a respective rail by a rail-engaging portion, each rail-engaging portion engaging the locator post extending from the respective rail to properly locate the extender boards so that the latch plate coupled to each extender board will engage the respective post coupled to the back section when the extender boards are moved to their first positions.

39. The apparatus of claim 27, wherein each extender board is coupled to the back section by a connector assembly, the connector assembly includes an upper clutch disk having downwardly-extending teeth and a lower clutch disk having upwardlyextending teeth and a downwardly-facing bottom surface beneath the upwardly-extending teeth, the upper and lower clutch disks are each formed to include an aperture, the connector assembly further includes a bolt received by the apertures of the upper and lower clutch disks, a spacer mounted on the bolt to engage the bottom surface of the lower clutch disk, and a lever pinned to the bolt for pivoting movement between locking and releasing positions, the lever includes a surface that engages the spacer when the lever is pivoted to the locking position to bring the upper and lower clutch disks together so that the downwardly-extending teeth mesh with the upwardly-extending teeth to prevent pivoting movement of the respective extender board relative to the back section, and the surface of the lever is spaced apart from the spacer when the lever is in the releasing position so that the upper and lower clutch disks can be separated to disengage the downwardly-extending teeth from the upwardly extending teeth to allow pivoting movement of the respective extender board relative to the back section.

40. The apparatus of claim 27, wherein the back section can pivot relative to the frame between a horizontal position and an inclined position and each extender board is coupled to the back section by a connector assembly, the connector assembly includes an upper clutch disk having a flat downwardly-facing bottom surface, a lower clutch disk having a flat upwardly-facing top surface, and a self-lubricating washer sandwiched between the upper and lower clutch disks, the connector assembly further includes a clutch assembly that squeezes the upper and lower clutch disks into engagement with the self-lubricating washer with sufficient force to hold the respective extender board in a fixed position when the back section is in the inclined position.

41. An apparatus for supporting a patient, the apparatus comprising

a frame,

a patient-support deck coupled to the frame and including a back section having first and second longitudinal sides and a transverse end extending between the sides, the back section having a substantially planar back-support surface,

a post mounted to and extending longitudinally away from the transverse end of the back section, the post having a first side and a second side spaced apart from the first side,

a head rest coupled to the back section and positioned to lie adjacent to the transverse end of the back section,

an extender board having an extension surface substantially coplanar with the back-support surface, the extender board being coupled to one of the sides of the back section for pivoting movement relative to the back section, the extender board having a docking portion that engages the first surface of the post to locate the extender board in a first position adjacent to the head rest, and

a latch assembly coupled to the extender board, the latch assembly including a latch plate having a portion that engages the second surface of the post to lock the extender board in the first position.

42. The apparatus of claim 41, wherein the extender board includes a frame, the frame is formed to include an opening that receives the post when the extender board is in the first position, and the frame includes a side wall that provides the docking portion of the extender board that engages the first surface of the post to locate the extender board in the first position adjacent to the head rest.