US20030229273A1 - Universal scissors joint apparatus - Google Patents
Universal scissors joint apparatus Download PDFInfo
- Publication number
- US20030229273A1 US20030229273A1 US10/365,822 US36582203A US2003229273A1 US 20030229273 A1 US20030229273 A1 US 20030229273A1 US 36582203 A US36582203 A US 36582203A US 2003229273 A1 US2003229273 A1 US 2003229273A1
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- United States
- Prior art keywords
- clamping member
- cam
- handle
- locking mechanism
- pivot
- Prior art date
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- Abandoned
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- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 210000003484 anatomy Anatomy 0.000 description 7
- 230000001954 sterilising effect Effects 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, 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
- A61B90/50—Supports for surgical instruments, e.g. articulated arms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/2812—Surgical forceps with a single pivotal connection
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B17/2909—Handles
- A61B2017/2912—Handles transmission of forces to actuating rod or piston
- A61B2017/2913—Handles transmission of forces to actuating rod or piston cams or guiding means
Abstract
A universal joint apparatus comprises clamps, a locking mechanism, and a rod connecting the clamps and the locking mechanism. At least one clamp is a scissors clamp, i.e. a clamp comprising two segments fastened by a pivot. The scissors clamp generates extra compressive force on the object being held, providing a stable and rigid universal joint. Clamps are able to rotate with respect to each other, allowing for greater flexibility in usage. The universal joint apparatus is capable of being added to a support frame between other components. In one embodiment of the invention, the universal joint includes a dedicated retractor blade handle to ensure that the locked position of the cam handle is oriented substantially away from the operative site.
Description
- This application is a Continuation in Part of Ser. No. 10/164,487, filed Jun. 6, 2002, now pending, entitled “SCISSORS UNIVERSAL JOINT.” The foregoing application is hereby incorporated by reference herein in its entirety, including the specification, claims, drawings and abstract.
- The present invention relates to surgical apparatus for retracting a patient's anatomy during an operation to provide exposure of the operative site. More particularly, the present invention relates to a universal scissors joint apparatus that is sturdy, stable, readily adjustable, and easily sterilized.
- Surgical operations often require prolonged access to the internal anatomy of a patient. Retractors are used to hold back tissue around the surgical site, granting the surgeon the needed access. While hand-held retractors may be used during surgeries, it is often desirable to use mechanically mounted retractors.
- Mechanical retractors are typically mounted to some kind of support structure. This support structure often takes the form of a frame surrounding part or all of the operating table. The frame may contain rails to which clamps may be attached. These clamps may connect the frame directly to a retractor, or to accessory rails to which retractors or additional rails may be connected. Greater flexibility in universal joint clamps alleviates some of the deficiencies of previous rail clamps in comparison to the manual application of retractors.
- Universal joints must be sterilized before being brought into the operating area. Many previous universal joints have separable components which require more care and effort for sterilization due to the need to disassemble and reassemble the components. Universal joints with unitary designs permit sterilization without the need to disassemble the joints.
- Some previous universal joints have used threaded locking mechanisms, which require lubrication and maintenance. Cam locking mechanisms require less maintenance and provide a much easier and more effective system for locking and unlocking the clamps.
- Cam locking universal joints typically incorporate a cam handle to open and lock the universal joint's locking mechanism. Unfortunately, the manipulation of the cam locking mechanism often results in the cam handle being oriented towards, and into, the operative site, thereby potentially interfering with a surgeon's visual access to the patient's anatomy or physically intruding with a surgeon's movement. For example, U.S. Pat. Nos. 5,888,197 (“'197”), and 6,017,008 (“008”) disclose floating cam handles that allow for the positioning of the cam handle at various orientations about the operative site and in relation to other support structure components. However, this freedom of movement may create unnecessary obstacles for the surgeon or create an additional issue that a surgical staff must consider and address. More specifically, in preparing for an operation, or while making adjustments during surgery, the fact that a cam handle was positioned into the field of operation, or at some other physically intrusive position, may be overlooked and impracticable to rectify.
- U.S. Pat. No. 5,727,899 (“'899”) teaches a unitary universal joint, wherein the cam handle may be substantially parallel to the handle of a retractor blade. However, because the retractor blade handle is removable, the handle, and associated retractor blade, may be inserted into the clamping member in a direction that allows the locking position of the cam handle to extend towards the operative site. Furthermore, the lack of an integrated retractor blade handle increases the difficulty and time required for setting up and positioning the retractor blade relative to the patient's anatomy.
- Because other components may be secured to the frame, it is desirable for a universal joint to have the capability of being added to the frame between secured components.
- While universal joints with the above features have been designed, it is desirable to have a universal joint with even greater ease of use, flexibility, stability, and rigidity.
- It is also desirable to have a universal joint that is designed so as to ensure that the cam handle of the cam locking mechanism is oriented away from the operative site.
- Furthermore, it is desirable to improve the efficiency and ease of setting up a retraction system by reducing the number of individual components that must be independently added to the universal joint.
- The present invention provides a universal joint apparatus. The present invention comprises clamps, a locking mechanism, and a rod associating the clamps with the locking mechanism. At least one clamp is a scissors clamp, i.e. a clamp comprising a first segment and a second segment, with the segments fastened by a pivot. The scissors clamp generates extra compressive force on the object being held, providing a stable and rigid universal joint. Clamps are able to rotate with respect to each other, allowing for greater flexibility in usage. The present invention is capable of being added to a support frame between other components. In one embodiment of the invention, the universal joint apparatus includes an integrated retractor blade handle, which, in conjunction with the cam locking mechanism, ensures that the locked position of the cam handle is oriented substantially away from the operating field.
- These and other features, aspects, and advantages of the present invention will be better understood with reference to the accompanying drawings, descriptions, and claims.
- FIG. 1 is a top perspective view of an embodiment of the present invention.
- FIG. 2 is a partial bottom perspective view of the present invention.
- FIG. 3 is a side view, in partial cross-section of an embodiment of the present invention.
- FIG. 4 is a top view, in partial cross-section of an embodiment of a cam locking mechanism of the present invention.
- FIG. 5 is a side view, in partial cross-section of an embodiment of a cam locking mechanism and rod of the present invention.
- FIG. 6 is a top view, in partial cross-section, illustrating the operation of locking and unlocking an embodiment of the present invention.
- FIG. 7 is a perspective view of one embodiment of the invention in which a retractor blade handle is integrated into the universal joint.
- FIG. 8 is a side view of one embodiment of the invention in which a retractor blade handle is integrated into the universal joint.
- FIG. 9 is a top view of a portion of a retraction system, the illustrated embodiment of the invention including an integrated retractor blade handle that is attached to a retractor blade.
- FIG. 10 illustrates the use of a conventional surgical retraction system.
- The foregoing summary, as well as the following detailed description of the preferred embodiments of the present invention, will be better understood when read in conjunction with the appended drawings. For the purpose of illustrating the preferred embodiments of the present invention, there is shown in the drawings, embodiments which are presently preferred. It should be understood, however, that the present invention is not limited to the arrangements and instrumentality shown in the attached drawings.
- FIG. 10 illustrates the use of conventional universal joints in a
surgical retraction system 101.Adjustable clamps use adapters frames framed stretcher 160. Apost 170 extends vertically from aclamp 223 to provide support for across bar 180, which in turn provides support for a pair ofextension arms crossbar 180 is secured to thepost 170 by auniversal joint clamp 210. Theextension arms cross bar 180 by a pair ofuniversal joint clamps universal joint clamps extension arms retractor blades extension arms - The
universal joints extension arms retractor blade handle 440 in relation to theextension arms retractor blades incision 460 made by the surgeon. Theretractor blades - Referring to FIG. 1, the disclosed embodiment of the universal scissors joint apparatus includes a first clamping member referred to as a
scissors clamp 10, a second clamping member referred to as acircle clamp 20, acam locking mechanism 30, and arod 40. Therod 40 associates thecam locking mechanism 30, thecircle clamp 20, and the scissors clamp 10. - Referring to FIGS. 1, 2, and3, the scissors clamp 10 includes two segments connected at a
pivot 16, similar to a scissors, so that the two segments cross each other at thepivot 16. Thefirst segment 12 includes an upper portion, referred to as an upper handle 12 a, of the scissors clamp 10 proximal of thepivot 16 and engaging therod 40; thefirst segment 12 further includes two lower portions, referred to as lower grippers 12 b, of the scissors clamp 10 distal of thepivot 16. The second segment 14 includes a lower portion, referred to as alower handle 14 a, of the scissors clamp 10 proximal of thepivot 16; the second segment 14 further includes an upper portion, referred to as an upper gripper 14 b, of the scissors clamp 10 distal of thepivot 16. The grippers 12 b, 14 b of the scissors clamp 10 are shaped so as to contour the surface of the object (not shown) to which the clamp is being attached. The inner surface of the upper gripper 14 b of the scissors clamp 10 may include indentations 14 c. These indentations 14 c may be located opposite the lower grippers 12 b. Thehandles 12 a, 14 a of the scissors clamp 10 are separated by a gap that allows the scissors clamp 10 to be squeezed, creating a tighter grip on the instrument being held by the grippers 12 b, 14 b of the clamp. Thehandles 12 a, 14 a of the scissors clamp 10 each have an opening that allows therod 40 to pass through. Abushing 50 may be used. Thebushing 50 may surround therod 40 and fit into the opening in the upper handle 12 a. - The
circle clamp 20 includes anupper portion 22 and alower portion 24 connected to form a single piece. Theupper portion 22 andlower portion 24 are connected at a circular shapedfulcrum 26. Thefulcrum 26 has acircular hole 28 in it. Thehole 28 allows for the insertion of a retractor, rail, or other object (not shown). Except for the connection at thefulcrum 26, a gap exists between theupper portion 22 andlower portion 24 of thecircle clamp 20. The gap allows thecircle clamp 20 to be squeezed, tightening the grip on the object being held in thecircle clamp 20. Aspacer 60 may lie within this gap. Both theupper portion 22 andlower portion 24 of thecircle clamp 20 have an opening through which therod 40 may pass. The opening in thelower portion 24 may fit thesame bushing 50 that engages the scissors clamp 10. - Referring to FIGS. 1, 4, and5, the
locking mechanism 30 includes ahandle 32 connected to acam 34. Thehandle 32 consists of a first straight portion 32 a, anelbow 32 b, and a secondstraight portion 32 c. The first straight portion 32 a projects straight out from thecam 34, then theelbow 32 b curves at an angle before the secondstraight portion 32 c projects straight out from theelbow 32 b. The secondstraight portion 32 c of thehandle 32 includes a recessedarea 36. Thecam 34 may be shaped asymmetrically with respect to thecenter axis 33 of the handle, so that the cam'scenter axis 35 is not aligned with the handle'scenter axis 33. Thecam 34 is positioned through aneyehole 42 in therod 40. Alternatively, the cam'scenter axis 35 may be aligned with the handle'scenter axis 33 where thecam 34 is not circular but instead has different radial lengths along different points of its perimeter, as will be appreciated by those skilled in the art. - Referring to FIGS. 3 and 5, the
rod 40 associates the scissors clamp 10,circle clamp 20 and thecam locking mechanism 30. Therod 40 has aneyehole 42 at one end through which thecam 34 may be inserted. At the opposite end, therod 40 may be connected to anut 70. A spring 80 surrounds therod 40 between thenut 70 and thelower handle 14 a of the scissors clamp 10. Alternatively, therod 40 may be directly attached to thelower handle 14 a of the scissors clamp 10. - Referring to FIGS. 3, 5, and6, the universal scissors joint is engaged by rotating the cam handle 32 from an
open position 38 to a locked position 39. Rotating the cam handle 32 rotates thecam 34 within theeyehole 42. This pushes therod 40 upward, which causes thenut 70 and spring 80 to press upward on thelower handle 14 a of the scissors clamp 10. Because the upper handle 12 a of the scissors clamp 10 is connected by thebushing 50 to thelower portion 24 of thecircle clamp 20, and thecircle clamp 20 is a single piece, as thenut 70 and spring 80 move upward, both the scissors clamp 10 and thecircle clamp 20 are squeezed, creating a tighter grip on the objects being held within the clamps. - Referring to FIGS. 1, 3,5, and 6 the scissors clamp 10 and the
circle clamp 20 are able to rotate with respect to each other. This allows any attached rods or surgical devices to be positioned in any manner desired for surgery. The ability to rotate may be locked or unlocked by thelocking mechanism 30. When the cam handle 32 is in theopen position 38, the scissors clamp 10 and thecircle clamp 20 are able to freely rotate with respect to each other. When the cam handle 32 is in the locked position 39, the ability of the two clamps to rotate with respect to each other is made extremely difficult, with the result establishing a fixed position for the clamps with respect to each other so long as the cam handle 32 is in the locked position 39. As the cam handle 32 is rotated into the locked position 39, the upper handle 12 a of the scissors clamp 10 is pressed against thebushing 50 with greater force, and thelower portion 24 of thecircle clamp 20 is also pressed against thebushing 50 with greater force. This greater force creates greater friction between the scissors clamp 10 and thebushing 50 and between thecircle clamp 20 and thebushing 50, greatly restricting the ability of the scissors clamp 10 and thecircle clamp 20 to rotate with respect to each other. - FIGS. 7 and 8 illustrate an embodiment of the invention in which a dedicated retractor blade handle105 is permanently mounted into the
universal joint 90. Thehandle 105, passes through thecircular hole 28 of thecircle clamp 20. In the illustrated embodiment, thehandle 105 has ahead member 110 and anend cap 116, thehead member 110 andend cap 116 being configured so that they are incapable of passing through thecircular hole 28, thereby preventing thehandle 105 from being removed from theuniversal joint 90. - FIGS. 7 and 8 also illustrate the
cam locking mechanism 30 as being integrated into theuniversal joint 90. More specifically, thecam handle 32,cam 34, andeyehole 42 are illustrated as being located in theupper portion 22 of thecircle clamp 20, with at least a portion of the cam handle 32 passing through, and rotating about, theorifice 21 of theupper portion 22. The rotational engagement of at least a portion of the cam handle 32 with theorifice 21 prevents thecam locking mechanism 30 from being swiveled and/or rotated about thelongitudinal axis 41 of therod 40 independently of the position of thecircular clamp 20. Therefore, the orientation of theopen position 38 or locked position 39 of the cam handle 32 always retains its position relative to the longitudinal axis of thecircular hole 28. - FIG. 9 illustrates a benefit of using an
integrated handle 105. Scissors clamp 10 is shown attached to anextension arm 118. In this illustrated embodiment, because thehandle 105 may not be removed from theuniversal joint 90, thehead 110 of thehandle 105, and associatedretractor blade 340, may be assembled so that the cam handle 32 may only be manipulated from anopen position 38, as illustrated by phantom lines, to a locked position 39, as illustrated by solid lines, to a position that is oriented substantially away from the incisedopening 460 in the patient's anatomy, thereby providing an easy and efficient means of ensuring that the cam handle 32 does not interfere with the surgeon's visual contact with patient's anatomy or impair the surgeon's movement. - In the illustrated embodiment, the
open position 38 and locked position 39 of cam handle 32 is illustrated as being substantially parallel with thehandle 105. This reduces potential interference that may be associated with acam handle 32 that substantially protrudes away from theretractor blade handle 105. The longitudinal axis of the cam handle is slightly angled away from the longitudinal axis of the retractor blade handle 105 so that the retractor blade handle 105 does not interfere with the ability to hold and manipulate the orientation of thecam handle 42. - Although the present invention has been described in considerable detail with reference to certain preferred versions thereof, other versions are possible. For example, types of clamps other than the
circle clamp 20 may be used in conjunction with the scissors clamp 10, and more than two clamps may be used in one device. It will be appreciated that different sizes and shapes of the clamps may be used without departing from the scope of the present invention. Different types of cam locking mechanisms may be used, such as that revealed in U.S. Pat. No. 5,888,197. Still other types of locking mechanisms may be employed, such as a threaded locking mechanism. It will be appreciated that the handle and the cam may assume different shapes without departing from the scope of the present invention. It will be appreciated that the positions that constitute the locked and unlocked position may be changed without departing from the scope of the present invention. The revealed embodiment is not able to be completely disassembled, so as to allow sterilization without disassembly, but other embodiments may be completely disassembled. Therefore, the spirit and scope of the appended claims should not be limited to the description of the preferred versions contained herein.
Claims (46)
1. A universal joint apparatus comprising:
a clamping member comprising a first segment and a second segment, the segments fastened by a pivot at an intermediate point of at least one segment;
a locking mechanism; and
a rod associating the locking mechanism with the clamping member.
2. The apparatus of claim 1 , wherein the segments of the clamping member are arranged adjacent to each other on one side of the pivot, the segments crossing each other at the pivot so that:
the first segment comprises the upper portion of the first clamping member on a first side of the pivot and also comprises the lower portion of the first clamping member on the second side of the pivot; and
the second segment comprises the lower portion of the first clamping member on the first side of the pivot and also comprises the upper portion of the first clamping member on the second side of the pivot.
3. The apparatus of claim 1 , further comprising at least one additional clamping member.
4. The apparatus of claim 3 , wherein the at least one additional clamping member comprises an upper segment and a lower segment, said segments
being parallel to each other;
having a space between them; and
being joined at one end.
5. The apparatus of claim 3 , wherein the locking mechanism comprises a cam locking mechanism.
6. The apparatus of claim 5 wherein the cam locking mechanism comprises:
a handle; and
a cam connected to the handle and engaging the rod so that the cam operates the clamping members when selectively positioned by using the handle.
7. The apparatus of claim 6 wherein the rod comprises an eyehole.
8. The apparatus of claim 7 wherein the cam passes through the rod via the eyehole.
9. The apparatus of claim 7 wherein the cam comprises an axle that passes through the eyehole.
10. The apparatus of claim 3 , further comprising at least one bushing placed between the clamping members.
11. The apparatus of claim 3 , wherein the first clamping member and the additional clamping members are independently rotatable with respect to each other.
12. The apparatus of claim 11 , wherein the locking mechanism, first clamping member, and the additional clamping members are independently rotatable with respect to each other.
13. The apparatus of claim 1 , further comprising a nut attached to the end of the rod.
14. The apparatus of claim 3 , wherein at least one of the at least one additional clamping member has a dedicated retractor blade handle.
15. The apparatus of claim 6 , wherein at least one of the at least one additional clamping member has a dedicated retractor blade handle, the cam locking mechanism having an open position and a locked position, the orientation of the handle in the locked position being substantially parallel to the retractor blade handle.
16. The apparatus of claim 15 , wherein the orientation of the locked position of the cam handle extends substantially away from an operative site.
17. A universal joint apparatus comprising:
a first clamping member comprising a first segment and a second segment, the segments fastened by a pivot at an intermediate point of at least one segment;
a locking mechanism;
at least one other clamping member; and
a rod associating the locking mechanism, the first clamping member and the other clamping members.
18. The apparatus of claim 17 , wherein the segments of the first clamping member are arranged adjacent to each other on one side of the pivot, the segments crossing each other at the pivot so that
the first segment comprises the upper portion of the first clamping member on a first side of the pivot and also comprises the lower portion of the first clamping member on the second side of the pivot;
and the second segment comprises the lower portion of the first clamping member on the first side of the pivot and also comprises the upper portion of the first clamping member on the second side of the pivot.
19. The apparatus of claim 17 , wherein the at least one additional clamping member comprises an upper segment and a lower segment, said segments
being parallel to each other;
having a space between them; and
being joined at one end.
20. The apparatus of claim 17 wherein the locking mechanism comprises a cam locking mechanism.
21. The apparatus of claim 20 wherein the cam locking mechanism comprises:
a handle; and
a cam connected to the handle and engaging the rod so that the cam operates the first clamping member and the additional clamping members when selectively positioned by using the handle.
22. The apparatus of claim 21 wherein the rod comprises an eyehole.
23. The apparatus of claim 22 wherein the cam passes through the rod via the eyehole.
24. The apparatus of claim 22 wherein the cam comprises an axle that passes through the eyehole.
25. The apparatus of claim 17 , further comprising at least one bushing placed between the clamping members.
26. The apparatus of claim 17 , wherein the clamping members are independently rotatable with respect to each other.
27. The apparatus of claim 26 , wherein the locking mechanism, first clamping member, and additional clamping members are independently rotatable with respect to each other.
28. The apparatus of claim 17 , further comprising a nut attached to the end of the rod.
29. The apparatus of claim 17 , wherein at least one of the at least one additional clamping member has a dedicated retractor blade handle.
30. The apparatus of claim 18 , wherein at least one of the at least one additional clamping member has a dedicated retractor blade handle, the cam locking mechanism having an open position and a locked position, the orientation of the handle in the locked position being substantially parallel to the retractor blade handle.
31. The apparatus of claim 30 , wherein the orientation of the locked position of the cam handle extends substantially away from an operative site.
32. A universal joint apparatus comprising:
a first clamping member comprising a first segment and a second segment, the segments fastened by a pivot at an intermediate point of at least one segment;
a locking mechanism;
a second clamping member; and
a rod associating the locking mechanism, the first clamping member and the second clamping member.
33. The apparatus of claim 32 , wherein the segments of the first clamping member are arranged adjacent to each other on one side of the pivot, the segments crossing each other at the pivot so that
the first segment comprises the upper portion of the first clamping member on a first side of the pivot and also comprises the lower portion of the first clamping member on the second side of the pivot;
and the second segment comprises the lower portion of the first clamping member on the first side of the pivot and also comprises the upper portion of the first clamping member on the second side of the pivot.
34. The apparatus of claim 32 , wherein the second clamping member comprises an upper segment and a lower segment, said segments
being parallel to each other;
having a space between them; and
being joined at one end.
35. The apparatus of claim 32 wherein the locking mechanism comprises a cam locking mechanism.
36. The apparatus of claim 35 wherein the cam locking mechanism comprises:
a handle; and
a cam connected to the handle and engaging the rod so that the cam operates the first clamping member and the second member when selectively positioned by using the handle.
37. The apparatus of claim 36 wherein the rod comprises an eyehole.
38. The apparatus of claim 37 wherein the cam passes through the rod via the eyehole.
39. The apparatus of claim 37 wherein the cam comprises an axle that passes through the eyehole.
40. The apparatus of claim 32 , further comprising a bushing placed between the first clamping member and the second clamping member.
41. The apparatus of claim 32 , wherein the first clamping member and the second clamping member are independently rotatable with respect to each other.
42. The apparatus of claim 41 , wherein the locking mechanism, first clamping member, and second clamping member are independently rotatable with respect to each other.
43. The apparatus of claim 32 , further comprising a nut attached to the end of the rod.
44. The apparatus of claim 32 , wherein at least one of the at least one additional clamping member has a dedicated retractor blade handle.
45. The apparatus of claim 36 , wherein at least one of the at least one additional clamping member has a dedicated retractor blade handle, the cam locking mechanism having an open position and a locked position, the orientation of the handle in the locked position being substantially parallel to the retractor blade handle.
46. The apparatus of claim 45 , wherein the orientation of the locked position of the cam handle extends substantially away for an operative site.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US10/365,822 US20030229273A1 (en) | 2002-06-06 | 2003-02-13 | Universal scissors joint apparatus |
US11/359,052 US7749163B2 (en) | 2002-06-06 | 2006-02-22 | Universal scissors joint apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/164,487 US20030229272A1 (en) | 2002-06-06 | 2002-06-06 | Universal scissors joint apparatus |
US10/365,822 US20030229273A1 (en) | 2002-06-06 | 2003-02-13 | Universal scissors joint apparatus |
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Application Number | Title | Priority Date | Filing Date |
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US10/164,487 Continuation-In-Part US20030229272A1 (en) | 2002-06-06 | 2002-06-06 | Universal scissors joint apparatus |
Related Child Applications (1)
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US11/359,052 Continuation US7749163B2 (en) | 2002-06-06 | 2006-02-22 | Universal scissors joint apparatus |
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US20030229273A1 true US20030229273A1 (en) | 2003-12-11 |
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US11/359,052 Active 2025-04-03 US7749163B2 (en) | 2002-06-06 | 2006-02-22 | Universal scissors joint apparatus |
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