CN212679234U

CN212679234U - Traction repositor in ankle fracture operation

Info

Publication number: CN212679234U
Application number: CN202020795766.4U
Authority: CN
Inventors: 杨金维
Original assignee: Kunshan Second People's Hospital
Current assignee: Kunshan Second People's Hospital
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2021-03-12
Anticipated expiration: 2030-05-14

Abstract

The utility model provides a traction restorer in ankle joint fracture art, including inserting the last fixed needle in the shin bone, insert the lower fixed needle in the calcaneus, the last rack of being connected with last fixed needle, lower rack, first casing, install the first gear in first casing, connect the second casing on lower rack, install the second gear in the second casing, with the arc rack of second gear engagement, dead lever. The utility model provides a traction restorer in ankle joint fracture art, through rotating the vertical interval of first twist grip controllable last fixed needle and lower fixed needle, reach vertical traction effect, make ankle joint fracture broken ends short and contract aversion can correct, resume low limbs length, can drive down fixed needle relatively and go up fixed needle through rotating second twist grip and rotate, play horizontal traction effect, thereby the distal end of adjustable fracture is shin bone and calcaneum relative position, make the shin bone, the rotatory aversion of talus can reset fast, for medical personnel's saving time, the work load is reduced.

Description

Traction repositor in ankle fracture operation

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to traction restorer in ankle joint fracture art.

Background

In daily life, fractures are frequent, particularly ankle fractures, which are accompanied by shortening and rotation displacement, even dislocation of the tibia 11 and the talus 12 joints occur, and the correction of the longitudinal and rotation displacement is important in the operation, so that the tibia 11 and the calcaneus 13 need to be longitudinally pulled in the fracture reduction process, and the far end and the near end of the fracture need to be properly rotated, so that the tibia 11 and the talus 12 can be rapidly reduced in rotation.

In view of the above, there is a need to design a distraction reducer for use in ankle fracture surgery to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a pull restorer in disclosing ankle joint fracture art, through rotating the vertical interval of fixed needle and lower fixed needle in the first twist grip controllable, reach vertical traction effect, make ankle joint fracture broken ends short and contract aversion can correct, resume low limbs length, can drive down fixed needle relatively and go up fixed needle through rotating second twist grip and rotate, play horizontal traction effect, thereby the far and near end of adjustable fracture is shin bone and calcaneum relative position, make the shin bone, the rotatory aversion of talus can reset fast, for medical personnel's saving time, the work load has been reduced.

In order to achieve the above object, the present invention provides a traction repositor for ankle fracture surgery, which comprises an upper fixing needle inserted into a tibia, a lower fixing needle inserted into a calcaneus, an upper rack connected with the upper fixing needle, a lower rack, a first shell, a first gear installed in the first shell, a second shell connected to the lower rack, a second gear installed in the second shell, an arc rack passing through the second shell and engaged with the second gear, and a fixing rod connected to the arc rack; go up rack and lower rack and all pass first casing and respectively with first gear engagement, arc rack and lower rack are arranged perpendicularly, the dead lever is located rack under, down the fixed needle is connected on the dead lever, first gear revolve is in order to control the vertical interval of fixed needle and lower fixed needle, the second gear revolve is in order to control the horizontal interval of fixed needle and lower fixed needle.

In some embodiments, the upper fixing pin and the upper rack are vertically arranged, and the lower fixing pin and the fixing rod are vertically arranged.

In some embodiments, the upper fixing needle and the upper rack are in threaded connection or clamping connection, and the lower fixing needle and the fixing rod are in threaded connection or clamping connection.

In some embodiments, the fixing rod is connected to one end of an arc-shaped rack, and the other end of the arc-shaped rack is connected with a balancing weight.

In some embodiments, the fixed bar and the lower rack are arranged in parallel.

In some embodiments, a first rotating handle connected with the first gear is arranged on the outer wall of the first shell, and a second rotating handle connected with the second gear is arranged on the outer wall of the second shell.

In some embodiments, the upper rack and the lower rack are both connected with a sliding block, and the first shell is provided with a sliding groove for the sliding block to slide.

In some embodiments, the arc-shaped rack is connected with a sliding block, and an arc-shaped sliding groove for sliding the sliding block is formed in the second shell.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a traction restorer in ankle joint fracture art, through rotating the vertical interval of first twist grip controllable last fixed needle and lower fixed needle, reach vertical traction effect, make ankle joint fracture broken ends short and contract aversion can correct, resume low limbs length, can drive down fixed needle relatively and go up fixed needle through rotating second twist grip and rotate, play horizontal traction effect, thereby the distal end of adjustable fracture is shin bone and calcaneum relative position, make the shin bone, the rotatory aversion of talus can reset fast, for medical personnel's saving time, the work load is reduced.

Drawings

FIG. 1 is a schematic structural view of a traction reduction device for ankle fracture surgery according to the present invention;

FIG. 2 is a right side view of FIG. 1;

fig. 3 is a view showing the internal structure of the first casing shown in fig. 1;

fig. 4 is a view showing the inner structure of the second casing shown in fig. 1.

Detailed Description

The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functions, methods, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.

The traction reductor for ankle fracture shown in fig. 1-4 comprises an upper fixing pin 21 inserted into the tibia 11 and a lower fixing pin 22 inserted into the calcaneus 13, so that the tibia 11 and the upper fixing pin 21 move synchronously and the calcaneus 13 and the lower fixing pin 22 move synchronously.

Between the tibia 11 and the calcaneus 13 is a talus 12, and the talus 12 and the calcaneus 13 are connected by ligaments so as to rotate synchronously. The calcaneus 13 does not involve articular surfaces and is therefore suitable for being driven into the lower fixation pin 22.

And the upper rack 31 is connected with the upper fixing needle 21, and the upper fixing needle 21 and the upper rack 31 are vertically arranged. Go up fixed needle 21 and go up rack 31 for spiro union or joint, the installation is firm and the dismouting is convenient.

Further comprises a lower rack 32, a first housing 41, and a first gear 91 mounted in the first housing 41. The upper rack 31 and the lower rack 32 both pass through the first housing 41 and are respectively engaged with the first gear 91. The upper rack 31 is connected with a sliding block 311, the lower rack 32 is connected with a sliding block 321, and the first housing 41 is provided with a sliding groove (not shown) for the sliding block 311 to slide and a sliding groove (not shown) for the sliding block 321 to slide, so that the stability of the upper rack 31 and the lower rack 32 in the up-and-down movement process can be ensured.

Be equipped with the first twist grip 61 of being connected with first gear 91 on the first casing 41 outer wall, clockwise rotation first twist grip 61, first gear 91 clockwise rotates, it shifts up to drive rack 31, it shifts up to go up rack 31 and drive fixed needle 21, it shifts down to drive rack 32, fixed needle 22 moves down under rack 32 drives down, thereby fixed needle 21 and lower fixed needle 22's vertical interval has been increased, play vertical traction effect, the short and short aversion that makes ankle joint fracture broken end can be corrected, resume low limbs length, make shin bone 11, talus 12 can reset fast, for medical personnel's time saving, the work load has been reduced.

And further includes a second housing 42 coupled to the lower rack 32, a second gear 92 installed in the second housing 42, an arc-shaped rack 33 passing through the second housing 42 and engaged with the second gear 92, and a fixing rod 7 coupled to the arc-shaped rack 33. The fixing lever 7 and the lower rack 32 move synchronously.

The lower fixing pin 22 is connected to the fixing rod 7, and the lower fixing pin 22 and the fixing rod 7 are vertically arranged. The lower fixing needle 22 and the fixing rod 7 are in threaded connection or clamped connection, and are firm to install and convenient to disassemble and assemble.

The arc-shaped rack 33 and the lower rack 32 are vertically arranged. The fixing rod 7 and the lower rack 32 are arranged in parallel, and the fixing rod 7 is positioned right behind the lower rack 32, namely, in a direction facing inwards in the paper.

The dead lever 7 is connected in arc rack 33 one end, the arc rack 33 other end is connected with balancing weight 8, plays the counter weight effect, can make dead lever 7 can the steady movement. The arc-shaped rack 33 is connected with a sliding block 331, and an arc-shaped sliding groove (not shown) for the sliding block 331 to slide is arranged in the second housing 42, so that the stability of the arc-shaped rack 33 in the moving process can be ensured.

The second rotary handle 62 connected with the second gear 92 is arranged on the outer wall of the second shell 42. Rotatory second twist grip 62, drive second gear 92, arc rack 33 drives dead lever 7 lateral rotation, and dead lever 7 drives down fixed needle 22 and goes up fixed needle 21 relatively and rotate, plays horizontal traction effect to the distal end of adjustable fracture is shin bone 11 and calcaneus 13 relative position promptly, makes the rotatory aversion of shin bone 11, talus 12 reset fast, has practiced thrift the time for medical personnel, has reduced work load.

The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The traction repositor in the ankle joint fracture surgery is characterized by comprising an upper fixing needle (21) inserted into a tibia (11), a lower fixing needle (22) inserted into a calcaneus (13), an upper rack (31) connected with the upper fixing needle (21), a lower rack (32), a first shell (41), a first gear (91) installed in the first shell (41), a second shell (42) connected onto the lower rack (32), a second gear (92) installed in the second shell (42), an arc-shaped rack (33) which penetrates through the second shell (42) and is meshed with the second gear (92), and a fixing rod (7) connected onto the arc-shaped rack (33);

go up rack (31) and lower rack (32) and all pass first casing (41) and mesh with first gear (91) respectively, arc rack (33) and lower rack (32) are arranged perpendicularly, dead lever (7) are located under the rack (32) directly behind, fixed needle (22) are connected on dead lever (7) down, first gear (91) rotate in order to control the vertical interval of fixed needle (21) and fixed needle (22) down, second gear (92) rotate in order to control the horizontal interval of fixed needle (21) and fixed needle (22) down.

2. The distraction reducer according to claim 1, wherein said upper fixation needle (21) and upper rack (31) are arranged vertically and said lower fixation needle (22) and fixation rod (7) are arranged vertically.

3. The traction reductor in ankle fracture surgery as claimed in claim 2, wherein the upper fixing needle (21) and the upper rack (31) are in screw connection or clamping connection, and the lower fixing needle (22) and the fixing rod (7) are in screw connection or clamping connection.

4. The traction reductor for ankle fracture operation as claimed in claim 1, wherein the fixing rod (7) is connected to one end of an arc-shaped rack (33), and the other end of the arc-shaped rack (33) is connected with a balancing weight (8).

5. The distraction reducer according to claim 4, wherein said fixation rod (7) and lower rack (32) are arranged in parallel.

6. The traction reducer for ankle fracture surgery according to claim 1, wherein a first rotary handle (61) connected with a first gear (91) is provided on an outer wall of the first housing (41), and a second rotary handle (62) connected with a second gear (92) is provided on an outer wall of the second housing (42).

7. The traction repositor for ankle fracture surgery according to claim 6, wherein the upper rack (31) and the lower rack (32) are both connected with sliding blocks, and the first shell (41) is provided with sliding grooves for the sliding blocks to slide.

8. The traction reducer for ankle fracture operation according to claim 6, wherein a sliding block is connected to the arc-shaped rack (33), and an arc-shaped sliding groove for sliding the sliding block is provided in the second housing (42).