CN111557698A - Wrist arthroscope traction frame - Google Patents

Abstract

The invention relates to a wrist arthroscope traction frame, and belongs to the field of medical instruments. In order to solve the problems that the existing traction device is not suitable for a wrist joint and the operation is not flexible enough, the invention provides a wrist arthroscope traction frame, which comprises: base, stand, pole setting under the bulb, bulb pole, pole setting, horizontal pole, pull chest expander and pull the dactylotheca, the base is even to cooperate with the stand to be connected, the stand cup joints with pole setting under the bulb, the pole setting passes through lock nut and is connected with the universal ball of bulb pole under the bulb, the bulb pole through the fine setting nut pole setting with cup joint, the round hole that the pole setting inserted on the horizontal pole is connected with the horizontal pole is perpendicular, pull the chest expander and hang on the horizontal pole, pull the dactylotheca and hang on pulling the chest expander. The wrist joint traction device is applied to wrist joint traction, improves the accuracy of a wrist joint small joint traction technology, can adjust the height and the angle at any time according to actual conditions, and improves the flexibility of operation.

Description

Wrist arthroscope traction frame

Technical Field

The invention belongs to the field of medical instruments, and particularly relates to a wrist arthroscope traction frame.

Background

Because the structure of the wrist joint is very complex, the wrist bone has more articular surfaces and multiple phases of movement, the ligament between the wrist bones is tiny, and the tissue structures of blood vessels, nerves, tendons and the like around the wrist joint are various. The existing wrist arthroscopy traction frame technology is developed on the basis of knee joints and shoulder joints, and the mature technology of the large joints is applied to the wrist joints and has the problems of operation feasibility and effectiveness. The existing large joint traction technology cannot be accurately applied to wrist parts, has limitation on traction of wrist joints, can influence biomechanical repair effect, and is low in efficiency. And the machine is large in size and not flexible enough to operate.

Disclosure of Invention

In order to solve the problems that the existing traction device is not suitable for a wrist joint and is not flexible enough in operation, the invention provides a wrist arthroscope traction frame.

The technical scheme of the invention is as follows:

a wrist arthroscope traction frame comprising: a base, a vertical column, a ball head lower vertical rod, a ball head rod, a vertical rod, a cross rod, a traction chest expander and a traction finger sleeve,

the base is connected with the stand in a matched mode, the lower portion of the lower ball head vertical rod is sleeved in the stand, the bottom of the ball head rod is an universal ball, the top of the lower ball head vertical rod is a bowl-shaped groove matched with the bottom of the ball head rod, threads matched with the locking nut are arranged on the outer side of the top of the lower ball head vertical rod, the lower ball head vertical rod is connected with the universal ball of the ball head rod through the locking nut and used for achieving axial rotation of the lower ball head vertical rod, the upper portion of the ball head rod is sleeved outside the vertical rod through the fine adjustment nut, one end of the cross rod is provided with a round hole matched with the vertical rod, the vertical rod is inserted into the round hole and vertically connected with the cross rod through a third indexing pin, the traction chest expander.

Furthermore, the bottom of the upright column is prismatic, a counter bore is arranged on the bottom surface of the base, and a prismatic through hole which is smaller than the counter bore and matched with the bottom of the upright column is formed in the counter bore and used for realizing the vertical connection between the bottom and the upright column.

Furthermore, at least 4 wave ball screws are arranged around the counter bore on the base, a positioning pin is arranged in the lower portion of the stand column, and a first indexing pin is arranged on the stand column and located above the positioning pin and used for pressing the positioning pin into the base to fix the base and the stand column.

Furthermore, a plurality of grooves matched with the fixing blocks and a plurality of blind holes matched with the stop levers are arranged on the upright posts, and the fixing blocks and the stop levers are used for fixing forearms of users.

Furthermore, a positioning bolt is arranged on the stand column, a U-shaped groove matched with the positioning bolt is formed in the lower ball-end vertical rod and used for preventing the lower ball-end vertical rod from rotating, a second indexing pin is arranged on the upper portion of the stand column, and a plurality of blind holes matched with the second indexing pin are formed in the lower ball-end vertical rod and used for locking the lower ball-end vertical rod on the stand column.

Furthermore, a spherical pad matched with the ball head rod is arranged in the locking nut and used for locking or loosening the ball head rod.

Furthermore, the upper end of the ball head rod is provided with external threads, the lower end of the fine adjustment nut is internally provided with a threaded hole matched with the ball head rod, the ball head rod is in threaded connection with the fine adjustment nut, the upper end of the fine adjustment nut is provided with a blind hole matched with the vertical rod, the vertical rod is sleeved in the fine adjustment nut, the upper part of the ball head rod is provided with a positioning pin, and the vertical rod is provided with a U-shaped groove matched with the positioning pin and used for preventing the vertical rod from rotating.

Furthermore, the vertical rod is provided with a plurality of blind holes matched with the third indexing pins, and the blind holes are used for locking the cross rod at different positions of the vertical rod.

Furthermore, a plurality of grooves are formed in the cross rod and used for hanging hooks located at the top end of the traction chest expander in the grooves.

Further, the traction chest expander comprises: a hook, a nut, a core shaft, an outer cylinder, a spring pad, a hanging plate and a positioning bolt,

the top of dabber is for having the arch of round hole, and the couple passes round hole and spindle connection, and dabber outside cover has the spring, and the spring pad passes through positioning bolt and dabber fixed connection, the adjacent nut of stiff end of spring, the adjacent spring pad of expansion end, and the outside cover of spring has the urceolus, and the urceolus passes through outer screwed nut and spindle connection, and the link plate passes through the bolt to be connected with the urceolus, be provided with a plurality of U type grooves on the link plate, pull the dactylotheca and pass through the pearl chain and hang in U type groove for realize pulling the dactylotheca and be connected.

The invention has the beneficial effects that:

1. the wrist arthroscope traction frame is specially designed for the wrist joint, effectively eliminates the limitation that a large joint tractor pulls the wrist joint, improves the accuracy of a small joint traction technology of the wrist joint, and effectively improves the biomechanical repair efficiency. And by adopting multi-component assembly and selecting different assembly modes as required, the flexibility of operation is improved. The lower ball head vertical rod is sleeved with the stand column, the lower ball head vertical rod can be quickly locked at the required height through the second indexing pin, and the beneficial effect that the height of the traction frame can be adjusted at any time according to actual conditions is achieved. The ball head rod is connected with the lower vertical rod of the ball head through the universal ball, and the ball head rod can axially rotate according to actual conditions by matching of the locking nut, so that the beneficial effect that the angle of the traction frame can be adjusted according to the actual conditions at any time is achieved. The ball head rod is sleeved with the vertical rod and locked by the fine adjustment nut, the height of the vertical rod can be adjusted by moving up and down, and the required extension length can be further met when the traction frame meets the required angle.

2. The stand adopts the mode of assembling with the base, conveniently accomodates, practices thrift the space, has realized making this wrist arthroscope traction frame can dismantle fast and the beneficial effect of installation, has improved the flexibility of operation. The splicing mode is clamping, so that the splicing structure is more stable. Utilize ripples pearl screw, pilot pin and first index pin to cooperate, can prevent that the stand from taking place to rotate on the base, further stabilized connection structure, make stand and base quick link stable.

3. The fixing block is matched with a plurality of grooves matched with the fixing block on the upright column, and the stop rod is matched with a plurality of blind holes matched with the stop rod on the upright column, so that the fixing effect on the forearm is achieved when the wrist joint is used, the adjustment can be carried out at any time according to actual conditions, and the required angle of the wrist joint is ensured to be kept when traction is implemented.

4. The stand is provided with a positioning bolt, and the lower ball-end upright post is provided with a U-shaped groove matched with the positioning bolt, so that the lower ball-end upright post can be prevented from rotating unnecessarily, and the stability of the traction frame is ensured.

5. The locking nut is internally provided with a spherical pad matched with the ball head rod, and when the locking nut is screwed or loosened, the locking nut drives the spherical pad to move up and down so as to achieve the purpose of locking or loosening the ball head rod and be convenient for locking the ball head rod at a required angle.

6. The upper part of the ball head rod is provided with a positioning pin, and the vertical rod is provided with a U-shaped groove matched with the positioning pin, so that the vertical rod can be prevented from rotating unnecessarily.

7. The top end of the cross rod is provided with a third indexing pin, the upright stanchion is provided with a plurality of blind holes matched with the third indexing pin, and the pins can be inserted into the blind holes according to requirements, so that the cross rod can be fixed on the upright stanchion according to the required height.

8. The cross bar is provided with a plurality of grooves for hanging hooks positioned at the top end of the traction chest expander in the grooves to prevent the traction chest expander from sliding on the cross bar.

9. A spring and a spring pad are arranged between a mandrel and an outer barrel of the traction chest expander, and a traction finger sleeve is hung on the traction chest expander, so that the wrist is pulled through a movable finger.

Drawings

FIG. 1 is a schematic structural view of a wrist arthroscope traction frame;

FIG. 2 is a right side view of the base coupled to the post;

FIG. 3 is a front view of the connection of the base and the column;

FIG. 4 is a schematic view of the connection between a column and a lower vertical rod of a ball head;

FIG. 5 is a schematic view of the connection between the lower vertical rod and the ball head rod;

FIG. 6 is a schematic view of the connection between the ball-end rod and the vertical rod;

FIG. 7 is a schematic view of a traction tensioner connection;

in the figure, 1, a base; 2. a first index pin; 3. a column; 4. a second indexing pin; 5. a lower vertical rod of the ball head; 6. locking the nut; 7. a ball-head rod; 8. fine adjustment of the nut; 9. erecting a rod; 10. a third indexing pin; 11. a cross bar; 12. a traction chest expander; 13. a traction finger stall; 14. a fixed block; 15. a stop lever; 16. a ball screw; 17. a positioning pin; 18. positioning the bolt; 19. a spherical pad; 20. positioning a pin; 21. hooking; 22. a nut; 23. a mandrel; 24. an outer cylinder; 25. a spring; 26. a spring pad; 27. hanging the plate; 28. and (6) positioning the bolt.

Detailed Description

The technical solutions of the present invention are further described below with reference to the following examples, but the present invention is not limited thereto, and any modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

The first embodiment is as follows: the present embodiment is described with reference to fig. 1 and 3, and in order to solve the problems that the conventional traction technology is not suitable for wrist joints and the operation is not flexible enough, the present embodiment proposes the following solutions:

a wrist arthroscope traction frame comprising: base 1, stand 3, bulb lower vertical rod 5, bulb pole 7, vertical rod 9, horizontal pole 11, traction chest expander 12 and traction finger sleeve 13, wherein, base 1 matches with stand 3 to be connected, the lower part of bulb lower vertical rod 5 cup joints in stand 3, the bottom of bulb pole 7 is universal ball, the top of bulb lower vertical rod 5 is a bowl-shaped groove that matches with the bottom of bulb pole 7, the top outside is provided with the screw thread that matches with lock nut 6, bulb lower vertical rod 5 is connected with the universal ball of bulb pole 7 through lock nut 6 for realize the axial rotation of bulb lower vertical rod 5, the upper portion of bulb pole 7 cup joints outside vertical rod 9 through fine tuning nut 8, the one end of horizontal pole 11 is provided with the round hole that matches with vertical rod 9, vertical rod 9 inserts the round hole and passes through third index pin 10 and is connected with horizontal pole 11 perpendicularly, traction chest expander 12 hangs on horizontal pole 11, the traction finger sleeve 13 is hung on the traction chest expander 12.

The wrist arthroscope traction frame is specially designed for the wrist joint, effectively eliminates the limitation that a large joint tractor pulls the wrist joint, improves the accuracy of a small joint traction technology of the wrist joint, and effectively improves the biomechanical repair efficiency. And by adopting multi-component assembly and selecting different assembly modes as required, the flexibility of operation is improved. Pole 5 and stand 3 adopt to cup joint under the bulb, and accessible second index pin 4 locks pole 5 under the bulb on required height fast, has realized that this traction frame can be according to actual conditions height-adjusting's beneficial effect at any time. The ball head rod 7 is connected with the lower ball head upright rod 5 through a universal ball, the upright rods can axially rotate according to actual conditions by means of matching of the locking nuts 6, and the beneficial effect that the angle of the traction frame can be adjusted according to the actual conditions at any time is achieved. The ball head rod 7 is sleeved with the vertical rod 9 and locked by the fine adjustment nut 8, the height can be adjusted by moving the vertical rod 9 up and down, and the required extension length can be further met when the traction frame meets the required angle.

The second embodiment is as follows: the present embodiment is described with reference to fig. 1, 2 and 3, and in order to achieve convenient storage and quick detachable installation, the following proposals are proposed:

a wrist arthroscope traction frame comprising: base 1, stand 3, bulb lower vertical rod 5, bulb pole 7, vertical rod 9, horizontal pole 11, traction chest expander 12 and traction finger sleeve 13, wherein, base 1 matches with stand 3 to be connected, the lower part of bulb lower vertical rod 5 cup joints in stand 3, the bottom of bulb pole 7 is universal ball, the top of bulb lower vertical rod 5 is a bowl-shaped groove that matches with the bottom of bulb pole 7, the top outside is provided with the screw thread that matches with lock nut 6, bulb lower vertical rod 5 is connected with the universal ball of bulb pole 7 through lock nut 6 for realize the axial rotation of bulb lower vertical rod 5, the upper portion of bulb pole 7 cup joints outside vertical rod 9 through fine tuning nut 8, the one end of horizontal pole 11 is provided with the round hole that matches with vertical rod 9, vertical rod 9 inserts the round hole and passes through third index pin 10 and is connected with horizontal pole 11 perpendicularly, traction chest expander 12 hangs on horizontal pole 11, the traction finger sleeve 13 is hung on the traction chest expander 12; a counter bore is arranged on the bottom surface of the base 1, and a through hole which is smaller than the counter bore and is matched with the bottom of the upright post 3 is formed in the counter bore and is used for realizing the vertical connection between the bottom 1 and the upright post 3; at least 4 wave ball screws 16 are arranged around the counter bore on the base 1, a positioning pin 17 is arranged in the lower portion of the upright post 3, and a first index pin 2 is arranged on the upright post 3 and located above the positioning pin 17 and used for pressing the positioning pin 17 into the base 1 to fix the base 1 and the upright post 3.

A counter bore is arranged on the bottom surface of the base 1, then a prismatic through hole smaller than the counter bore is processed, four wave ball screws 16 are arranged around the through hole, the upright post 3 is placed in the hole of the base 1 and rotates 45 degrees, the first index pin 2 moves downwards to press the positioning pin 17 to be inserted into the base 1, and the upright post 3 and the base 1 are connected stably and quickly.

The stand 3 adopts the mode of assembling with base 1, convenient storage practices thrift the space, has realized making this wrist arthroscope traction frame can dismantle fast and the beneficial effect of installation, has improved the flexibility of operation. The splicing mode is that the joint makes mosaic structure more stable. The wave ball screw 16, the positioning pin 14 and the first index pin 2 are matched, so that the upright post 3 can be prevented from rotating on the base 1, the connecting structure is further stabilized, and the upright post 3 and the base 1 are quickly and stably connected.

The third concrete implementation mode: referring to fig. 1, the present embodiment is described, and in order to fix the forearm of the user, the following is proposed:

a wrist arthroscope traction frame comprising: base 1, stand 3, bulb lower vertical rod 5, bulb pole 7, vertical rod 9, horizontal pole 11, traction chest expander 12 and traction finger sleeve 13, wherein, base 1 matches with stand 3 to be connected, the lower part of bulb lower vertical rod 5 cup joints in stand 3, the bottom of bulb pole 7 is universal ball, the top of bulb lower vertical rod 5 is a bowl-shaped groove that matches with the bottom of bulb pole 7, the top outside is provided with the screw thread that matches with lock nut 6, bulb lower vertical rod 5 is connected with the universal ball of bulb pole 7 through lock nut 6 for realize the axial rotation of bulb lower vertical rod 5, the upper portion of bulb pole 7 cup joints outside vertical rod 9 through fine tuning nut 8, the one end of horizontal pole 11 is provided with the round hole that matches with vertical rod 9, vertical rod 9 inserts the round hole and passes through third index pin 10 and is connected with horizontal pole 11 perpendicularly, traction chest expander 12 hangs on horizontal pole 11, the traction finger sleeve 13 is hung on the traction chest expander 12; the upright post 3 is provided with a plurality of grooves matched with the fixing block 14 and a plurality of blind holes matched with the stop lever 15, and the fixing block 14 and the stop lever 15 are used for fixing the forearm of a user.

When in use, a user places the elbow on the base 1, and the front arm is placed between the fixed block 14 and the stop lever 15. The fixing block 14 is matched with a plurality of grooves matched with the fixing block 14 on the upright post 3, and the stop rod 15 is matched with a plurality of blind holes matched with the stop rod 15 on the upright post 3, so that the forearm can be prevented from sliding left and right when the wrist traction device is used, the fixing effect on the forearm is achieved, the wrist traction device can be adjusted at any time according to actual conditions, and the required angle of the wrist joint is guaranteed to be kept when traction is implemented.

The fourth concrete implementation mode: the present embodiment is described with reference to fig. 1 and 4, and in order to realize the height adjustment as required, the following is proposed:

a wrist arthroscope traction frame comprising: base 1, stand 3, bulb lower vertical rod 5, bulb pole 7, vertical rod 9, horizontal pole 11, traction chest expander 12 and traction finger sleeve 13, wherein, base 1 matches with stand 3 to be connected, the lower part of bulb lower vertical rod 5 cup joints in stand 3, the bottom of bulb pole 7 is universal ball, the top of bulb lower vertical rod 5 is a bowl-shaped groove that matches with the bottom of bulb pole 7, the top outside is provided with the screw thread that matches with lock nut 6, bulb lower vertical rod 5 is connected with the universal ball of bulb pole 7 through lock nut 6 for realize the axial rotation of bulb lower vertical rod 5, the upper portion of bulb pole 7 cup joints outside vertical rod 9 through fine tuning nut 8, the one end of horizontal pole 11 is provided with the round hole that matches with vertical rod 9, vertical rod 9 inserts the round hole and passes through third index pin 10 and is connected with horizontal pole 11 perpendicularly, traction chest expander 12 hangs on horizontal pole 11, the traction finger sleeve 13 is hung on the traction chest expander 12; the vertical column 3 is provided with a positioning bolt 18, the ball lower vertical rod 5 is provided with a U-shaped groove matched with the positioning bolt 18 and used for preventing the ball lower vertical rod 5 from rotating, the upper portion of the vertical column 3 is provided with a second indexing pin 4, and the ball lower vertical rod 5 is provided with a plurality of blind holes matched with the second indexing pin 4 and used for locking the ball lower vertical rod 5 on the vertical column 3.

The second index pin 4 is connected to the column 3 by a screw thread. The upright post 3 is provided with a round hole matched with the ball head lower upright post 5, and the ball head lower upright post 5 can be directly inserted into the upright post 3. In order to prevent the upright 5 from rotating, a positioning bolt 18 is arranged on the upright 3, and a U-shaped groove matched with the positioning bolt 18 is formed on the upright 5. The ball lower vertical rod 5 is provided with a plurality of blind holes matched with the second indexing pins 4, the second indexing pins 4 are loosened, the ball lower vertical rod 5 can slide up and down on the upright post 3 quickly, and when a pin shaft of the second indexing pin 4 is inserted into the blind holes of the ball lower vertical rod 5, the locking can be realized quickly.

Pole 5 and stand 3 adopt to cup joint under the bulb, and accessible second index pin 4 locks pole 5 under the bulb on required height fast, has realized that this traction frame can be according to actual conditions height-adjusting's beneficial effect at any time. The upright post 3 is provided with a positioning bolt 18, and the ball lower upright post 5 is provided with a U-shaped groove matched with the positioning bolt 18, so that the ball lower upright post 5 can be prevented from rotating unnecessarily, and the stability of the traction frame is ensured.

The fifth concrete implementation mode: the present embodiment is described with reference to fig. 1 and 5, and in order to realize the angle adjustment as required, the following is proposed:

a wrist arthroscope traction frame comprising: base 1, stand 3, bulb lower vertical rod 5, bulb pole 7, vertical rod 9, horizontal pole 11, traction chest expander 12 and traction finger sleeve 13, wherein, base 1 matches with stand 3 to be connected, the lower part of bulb lower vertical rod 5 cup joints in stand 3, the bottom of bulb pole 7 is universal ball, the top of bulb lower vertical rod 5 is a bowl-shaped groove that matches with the bottom of bulb pole 7, the top outside is provided with the screw thread that matches with lock nut 6, bulb lower vertical rod 5 is connected with the universal ball of bulb pole 7 through lock nut 6 for realize the axial rotation of bulb lower vertical rod 5, the upper portion of bulb pole 7 cup joints outside vertical rod 9 through fine tuning nut 8, the one end of horizontal pole 11 is provided with the round hole that matches with vertical rod 9, vertical rod 9 inserts the round hole and passes through third index pin 10 and is connected with horizontal pole 11 perpendicularly, traction chest expander 12 hangs on horizontal pole 11, the traction finger sleeve 13 is hung on the traction chest expander 12; the locking nut 6 is provided with a ball pad 19 inside, which is adapted to the ball bar 7, for locking or unlocking the ball bar 7.

The connection of the lower vertical rod 5 of the ball head and the ball head rod 7 uses a universal ball structure. One end of the ball head rod 7 is processed into a ball, the lower vertical rod 5 of the ball head is processed into a bowl-shaped groove matched with the ball head rod, the outer end of the ball head rod is processed into threads and connected with the locking nut 6, the locking nut 6 is internally provided with a spherical pad 19 matched with the ball head rod 7, and when the locking nut 6 is screwed or loosened, the spherical pad 19 is driven to move up and down to achieve the purpose of locking or loosening the ball head rod 7.

The ball head rod 7 is connected with the lower vertical rod 5 of the ball head through a universal ball, the ball head rod 7 can axially rotate according to actual conditions by means of matching of the locking nut 6, and the beneficial effect that the angle of the traction frame can be adjusted according to the actual conditions at any time is achieved. The locking nut 6 is internally provided with a spherical pad 19 matched with the ball head rod, when the locking nut 6 is screwed or loosened, the spherical pad 19 is driven to move up and down to achieve the purpose of locking or loosening the ball head rod 7, and the ball head rod 7 is conveniently locked at a required angle.

The sixth specific implementation mode: the present embodiment is described with reference to fig. 1 and 6, and in order to realize the height adjustment as required, the following is proposed:

a wrist arthroscope traction frame comprising: base 1, stand 3, bulb lower vertical rod 5, bulb pole 7, vertical rod 9, horizontal pole 11, traction chest expander 12 and traction finger sleeve 13, wherein, base 1 matches with stand 3 to be connected, the lower part of bulb lower vertical rod 5 cup joints in stand 3, the bottom of bulb pole 7 is universal ball, the top of bulb lower vertical rod 5 is a bowl-shaped groove that matches with the bottom of bulb pole 7, the top outside is provided with the screw thread that matches with lock nut 6, bulb lower vertical rod 5 is connected with the universal ball of bulb pole 7 through lock nut 6 for realize the axial rotation of bulb lower vertical rod 5, the upper portion of bulb pole 7 cup joints outside vertical rod 9 through fine tuning nut 8, the one end of horizontal pole 11 is provided with the round hole that matches with vertical rod 9, vertical rod 9 inserts the round hole and passes through third index pin 10 and is connected with horizontal pole 11 perpendicularly, traction chest expander 12 hangs on horizontal pole 11, the traction finger sleeve 13 is hung on the traction chest expander 12; the upper end of bulb pole 7 is provided with the screw thread, and the built-in screw hole that matches with bulb pole 7 of fine setting nut 8 lower extreme, bulb pole 7 and fine setting nut 8 threaded connection, the upper end of fine setting nut 8 is provided with the blind hole that matches with pole setting 9, and pole setting 9 cup joints in fine setting nut 8, and the upper portion of bulb pole 7 is provided with dowel 20, is provided with the U type groove that matches with dowel 20 on the pole setting 9 for prevent that pole setting 9 from rotating.

One end of the fine adjustment nut 8 is provided with a blind hole matched with the ball head rod 7, then a threaded hole matched with the upright rod 9 is processed, the upright rod 9 is connected with the fine adjustment nut 8 through threads, and the ball head rod 7 is inserted into the other end of the fine adjustment nut 8. In order to tighten the fine adjustment nut 8 to enable the upright rod 9 to move up and down for fine adjustment, a positioning pin 20 is added on the ball-end rod 7, and then a U-shaped groove matched with the positioning pin is added on the upright rod 9.

The ball head rod 7 is sleeved with the upright rod 9 and locked by the fine adjustment nut 8, the height of the ball head rod 7 can be adjusted by the upright rod 9 moving up and down, and the required extension length is further met when the traction frame meets the required angle. The upper part of the ball head rod 7 is provided with a positioning pin 20, and the vertical rod 9 is provided with a U-shaped groove matched with the positioning pin 20, so that the vertical rod 9 can be prevented from rotating unnecessarily.

The seventh embodiment: the present embodiment is described with reference to fig. 1, and in order to realize the height adjustment as required, the following is proposed:

a wrist arthroscope traction frame comprising: base 1, stand 3, bulb lower vertical rod 5, bulb pole 7, vertical rod 9, horizontal pole 11, traction chest expander 12 and traction finger sleeve 13, wherein, base 1 matches with stand 3 to be connected, the lower part of bulb lower vertical rod 5 cup joints in stand 3, the bottom of bulb pole 7 is universal ball, the top of bulb lower vertical rod 5 is a bowl-shaped groove that matches with the bottom of bulb pole 7, the top outside is provided with the screw thread that matches with lock nut 6, bulb lower vertical rod 5 is connected with the universal ball of bulb pole 7 through lock nut 6 for realize the axial rotation of bulb lower vertical rod 5, the upper portion of bulb pole 7 cup joints outside vertical rod 9 through fine tuning nut 8, the one end of horizontal pole 11 is provided with the round hole that matches with vertical rod 9, vertical rod 9 inserts the round hole and passes through third index pin 10 and is connected with horizontal pole 11 perpendicularly, traction chest expander 12 hangs on horizontal pole 11, the traction finger sleeve 13 is hung on the traction chest expander 12; the vertical rod 9 is provided with a plurality of blind holes matched with the third indexing pins 10, and the blind holes are used for realizing the locking of the cross rod 11 on different positions of the vertical rod 9.

The cross bar 11 is provided with a through hole matched with the upright 9, the upright 9 is inserted into the through hole, and the cross bar 11 can move up and down along the upright 9. The third indexing pin 10 is connected with the cross rod 11 through threads, the vertical rod 9 is provided with a plurality of blind holes matched with the third indexing pin 10, and when a pin shaft of the third indexing pin 10 is inserted into the blind holes of the vertical rod 9, the cross rod 11 can be quickly locked.

The top end of the cross rod 11 is provided with a third indexing pin, the upright stanchion is provided with a plurality of blind holes matched with the third indexing pin, and the pins can be inserted into the blind holes according to requirements, so that the cross rod can be fixed on the upright stanchion according to the required height.

The specific implementation mode is eight: the present embodiment is described with reference to fig. 1 and 7, and in order to realize the height adjustment as required, the following is proposed:

a wrist arthroscope traction frame comprising: base 1, stand 3, bulb lower vertical rod 5, bulb pole 7, vertical rod 9, horizontal pole 11, traction chest expander 12 and traction finger sleeve 13, wherein, base 1 matches with stand 3 to be connected, the lower part of bulb lower vertical rod 5 cup joints in stand 3, the bottom of bulb pole 7 is universal ball, the top of bulb lower vertical rod 5 is a bowl-shaped groove that matches with the bottom of bulb pole 7, the top outside is provided with the screw thread that matches with lock nut 6, bulb lower vertical rod 5 is connected with the universal ball of bulb pole 7 through lock nut 6 for realize the axial rotation of bulb lower vertical rod 5, the upper portion of bulb pole 7 cup joints outside vertical rod 9 through fine tuning nut 8, the one end of horizontal pole 11 is provided with the round hole that matches with vertical rod 9, vertical rod 9 inserts the round hole and passes through third index pin 10 and is connected with horizontal pole 11 perpendicularly, traction chest expander 12 hangs on horizontal pole 11, the traction finger sleeve 13 is hung on the traction chest expander 12; the cross bar 11 is provided with a plurality of grooves for hanging hooks 21 positioned at the top end of the traction chest expander 12 in the grooves; the traction tensioner 12 comprises: couple 21, nut 22, dabber 23, urceolus 24, spring 25, spring pad 26, link plate 27, positioning bolt 28, the top of dabber 23 is the arch that has the round hole, and couple 21 passes the round hole and is connected with dabber 23, and dabber 23 outside cover has spring 25, and spring pad 26 passes through positioning bolt 28 and dabber 23 fixed connection, the adjacent nut 22 of stiff end of spring 25, the adjacent spring pad 26 of expansion end, and the outside cover of spring 25 has urceolus 24, and urceolus 24 is connected with dabber 23 through outer screwed nut 22, and link plate 27 passes through the bolt and is connected with urceolus 24, be provided with a plurality of U type grooves on the link plate 27, pull dactylotheca 13 through the pearl chain hang in U type groove for realize that pull dactylotheca 13 is connected with traction chest expander.

A spring 25 and a spring pad 26 are arranged between the mandrel 23 and the outer cylinder 24 of the traction chest expander 12, and the traction finger sleeve 13 is hung on the traction chest expander 12, so that the wrist is dragged by the movable fingers.

Claims (10)

1. Wrist arthroscope traction frame, its characterized in that includes: a base (1), a column (3), a ball head lower upright post (5), a ball head rod (7), an upright post (9), a cross rod (11), a traction chest developer (12) and a traction finger sleeve (13),

wherein, base (1) and stand (3) cooperate to be connected, the lower part of pole (5) is cup jointed in stand (3) under the bulb, the bottom of bulb pole (7) is universal ball, pole (5) top is a bowl-shaped recess that matches bottom the bulb pole (7) under the bulb, the top outside is provided with the screw thread that matches with lock nut (6), pole (5) is connected with the universal ball of bulb pole (7) through lock nut (6) under the bulb for realize the axial of pole (5) is rotated under the bulb, the upper portion of bulb pole (7) is cup jointed outside pole (9) through fine tuning nut (8), the one end of horizontal pole (11) is provided with the round hole that matches with pole (9), pole (9) insert the round hole and are connected with horizontal pole (11) through third index pin (10) perpendicularly, pull tension device (12) hang on horizontal pole (11), the traction finger sleeve (13) is hung on the traction chest expander (12).

2. The wrist arthroscope traction frame according to claim 1, wherein a counter bore is arranged on the bottom surface of the base (1), and a through hole which is smaller than the counter bore and is matched with the bottom of the upright post (3) is formed in the counter bore and is used for realizing the vertical connection between the bottom (1) and the upright post (3).

3. The wrist arthroscope traction frame according to claim 2, wherein at least 4 wave ball screws (16) are arranged around counter bores on the base (1), a positioning pin (17) is arranged in the lower portion of the upright post (3), and a first indexing pin (2) is arranged on the upright post (3) and located above the positioning pin (17) and used for pressing the positioning pin (17) into the base (1) to fix the base (1) and the upright post (3).

4. The wrist arthroscope traction frame according to claim 2, wherein the upright column (3) is provided with a plurality of grooves matched with the fixing block (14) and a plurality of blind holes matched with the stop lever (15), and the fixing block (14) and the stop lever (15) are used for fixing the forearm of a user.

5. The wrist arthroscope traction frame according to claim 1, wherein the upright post (3) is provided with a positioning bolt (18), the ball lower upright post (5) is provided with a U-shaped groove matched with the positioning bolt (18) for preventing the ball lower upright post (5) from rotating, the upper part of the upright post (3) is provided with a second indexing pin (4), and the ball lower upright post (5) is provided with a plurality of blind holes matched with the second indexing pin (4) for locking the ball lower upright post (5) on the upright post (3).

6. The wrist arthroscope traction frame according to claim 1, characterized in that the locking nut (6) is internally provided with a ball pad (19) which is matched with the ball rod (7) and is used for locking or unlocking the ball rod (7).

7. The wrist arthroscope traction frame according to claim 1, wherein the upper end of the ball rod (7) is provided with external threads, a threaded hole matched with the ball rod (7) is formed in the lower end of the fine adjustment nut (8), the ball rod (7) is in threaded connection with the fine adjustment nut (8), a blind hole matched with the upright rod (9) is formed in the upper end of the fine adjustment nut (8), the upright rod (9) is sleeved in the fine adjustment nut (8), the upper portion of the ball rod (7) is provided with a positioning pin (20), and the upright rod (9) is provided with a U-shaped groove matched with the positioning pin (20) and used for preventing the upright rod (9) from rotating.

8. The wrist arthroscope traction frame according to claim 1, wherein the upright (9) is provided with a plurality of blind holes matched with the third indexing pins (10) for locking the cross rod (11) on different positions of the upright (9).

9. The wrist arthroscope traction frame according to claim 1, wherein the cross bar (11) is provided with a plurality of grooves for hanging hooks (21) at the top end of the traction chest expander (12) in the grooves.

10. The wrist arthroscope traction frame according to claim 1, wherein the traction tensioner (12) comprises: a hook (21), a nut (22), a mandrel (23), an outer cylinder (24), a spring (25), a spring pad (26), a hanging plate (27) and a positioning bolt (28),

the top of dabber (23) is the arch that has the round hole, and couple (21) pass the round hole and are connected with dabber (23), and dabber (23) outside cover has spring (25), and spring pad (26) pass through positioning bolt (28) and dabber (23) fixed connection, the stiff end of spring (25) is adjacent nut (22), and the outside cover of activity end is adjacent spring pad (26), and the outside cover of spring (25) has urceolus (24), and urceolus (24) are connected with dabber (23) through outer screwed nut (22), and link plate (27) are connected with urceolus (24) through the bolt, be provided with a plurality of U type grooves on link plate (27), pull dactylotheca (13) through the pearl chain hang in U type groove for realize pulling dactylotheca (13) and pull chest expander (12) and be connected.

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