CN207721878U

CN207721878U - A kind of Orthopeadic Surgery nail withdrawing device

Info

Publication number: CN207721878U
Application number: CN201720640153.1U
Authority: CN
Inventors: 刘晓武; 王庆芝
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-06-05
Filing date: 2017-06-05
Publication date: 2018-08-14
Anticipated expiration: 2027-06-05

Abstract

The utility model discloses a kind of Orthopeadic Surgery nail withdrawing devices, including sleeve, rotating bar, handle, shaft, fixed link, fixed plate and moving block；Sleeve is internally provided with rotating bar, and the inner wall of sleeve and the outer wall of rotating bar are designed with the screw thread that can coordinate, and sleeve is flexibly connected with rotating bar by screw thread；The top of rotating bar is located at cartridge exterior, the top of rotating bar is fixedly connected with handle, the bottom end of rotating bar is flexibly connected fixed link by shaft, the bottom end both sides of fixed link are fixedly connected with fixed plate, the inside bottom of fixed plate connects moving block by tightening knob, and the left and right sides of moving block is equipped with the first threaded hole coordinated with tightening knob；The utility model can realize the knob to nail and choose that two states easy switching is conducive to improve working efficiency；Medical worker by screw thread choose nail be conducive to save manpower, choose during clamping nail collet be not followed by rotating bar rotation, be conducive to avoid slipping phenomenon.

Description

A kind of Orthopeadic Surgery nail withdrawing device

Technical field

The utility model is related to medical instruments fields, and in particular to a kind of Orthopeadic Surgery nail withdrawing device.

Background technology

In bone surgery, it is the important means for treating fracture that steel plate combination nail, which is fixed, needs to take out after patient's recovery from illness Nail, common nail are divided into full thread and half-thread two types, since bone is tightly combined in agglutination with nail, Nail can only be taken out a part by screwdriver when taking nail, subsequently generally required surgical clamp cooperation and chosen, extremely inconvenient；And existing skill Device for fetching nail in art is extracted behind the head for blocking nail by clamp, and laborious larger, clamp when rotation is extracted directly are extracted It is easy to skid between nail, needs repeatedly to choose, operation is relatively difficult.

Utility model content

In order to overcome the shortcomings of that above-mentioned technology, the utility model provide a kind of Orthopeadic Surgery nail withdrawing device, can drop The low difficulty for taking out nail.

Technical solution adopted by the utility model to solve its technical problems is：A kind of Orthopeadic Surgery nail withdrawing device, Including sleeve, rotating bar, handle, shaft, fixed link, fixed plate and moving block；Sleeve is internally provided with rotating bar, sleeve it is interior Wall and the outer wall of rotating bar are designed with the screw thread that can coordinate, and sleeve is flexibly connected with rotating bar by screw thread；The top of rotating bar End is located at cartridge exterior, and the top of rotating bar is fixedly connected with handle, and the bottom end of rotating bar is flexibly connected fixed link by shaft, Gu The bottom end both sides of fixed pole are fixedly connected with fixed plate, and the inside bottom of fixed plate connects moving block by tightening knob, moving block The left and right sides is equipped with the first threaded hole coordinated with tightening knob；The front and rear sides of moving block are hinged bending plate, the hand of bending plate The front and rear sides that portion is located at moving block are held, below the bottom end of moving block, the top surface of moving block is equipped with the retaining part of bending plate Second threaded hole, the second threaded hole is interior to install driver bit.

Further, the outer wall of the sleeve is equipped with anti-skid chequer.

Further, it is connected by extension spring between the clamping part of described two bending plates.

Further, the bottom end of the sleeve is equipped with non-slip mat.

Further, the distance between hand-held part of described two bending plates is less than the internal diameter of sleeve.

Further, the clamping part medial surface of the bending plate is equipped with arc-shaped collet, and conical tooth is equipped on the inside of collet.

Further, the bending angle between the hand-held part and clamping part is 135 degree.

The utility model has the beneficial effects that Orthopeadic Surgery nail withdrawing device, can realize to the knob of nail and It chooses, two states easy switching is conducive to improve working efficiency；Medical worker by screw thread choose nail be conducive to save people Power, the collet of clamping nail is not followed by rotating bar rotation during choosing, and is conducive to avoid slipping phenomenon, disposably by nail It extracts.

Description of the drawings

The utility model is further illustrated with reference to the accompanying drawings and examples.

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the structural schematic diagram of moving block.

It is indicated in figure, 1. sleeves, 2. rotating bars, 3. handles, 4. shafts, 5. fixed links, 6. fixed plates, 7. moving blocks, 8. Tightening knob, 9. first threaded holes, 10. bending plates, 11. hand-held parts, 12. clamping parts, 13. second threaded holes, 14. screwdrivers Head, 15. extension springs, 16. non-slip mats, 17. collets, 18. conical tooths.

Specific implementation mode

Referring to Fig.1-2, a kind of Orthopeadic Surgery nail withdrawing device, including sleeve 1, rotating bar 2, handle 3, shaft 4, fixation Bar 5, fixed plate 6 and moving block 7；Sleeve 1 is internally provided with rotating bar 2, and the inner wall of sleeve 1 and the outer wall of rotating bar 2 are designed with The screw thread that can coordinate, sleeve 1 are flexibly connected with rotating bar 2 by screw thread；The top of rotating bar 2 is located at outside sleeve 1, rotation The top of bar 2 is fixedly connected with handle 3, and the bottom end of rotating bar 2 is flexibly connected fixed link 5, the bottom end two of fixed link 5 by shaft 4 Side is fixedly connected with fixed plate 6, and the inside bottom of fixed plate 6 connects moving block 7, the left and right sides of moving block 7 by tightening knob 8 Equipped with the first threaded hole 9 coordinated with tightening knob 8；The front and rear sides of moving block 7 are hinged bending plate 10, and bending plate 10 is held Portion 11 is located at the front and rear sides of moving block 7, and the clamping part 12 of bending plate 10 is located at below the bottom end of moving block 7, the top of moving block 7 Face is equipped with the second threaded hole 13, installs driver bit 14 in the second threaded hole 13, driver bit 14 can be selected according to nail model Suitable model.

As a preferred embodiment, the outer wall of the sleeve 1 is equipped with anti-skid chequer.

As a preferred embodiment, it is connected, is stretched by extension spring 15 between the clamping part 12 of described two bending plates 10 Spring 15 can make the chucking power of two generations of clamping parts 12 towards the middle.

As a preferred embodiment, the bottom end of the sleeve 1 is equipped with non-slip mat 16, prevents from skidding between fixed plate 6 and steel plate.

As a preferred embodiment, the distance between hand-held part 11 of described two bending plates 10 is less than the internal diameter of sleeve 1, makes Hand-held part 11 can be received together with moving block 7 to sleeve 1.

As a preferred embodiment, 12 medial surface of clamping part of the bending plate 10 is equipped with arc-shaped collet 17, collet 17 Inside is equipped with conical tooth 18, and conical tooth 18 can increase the chucking power to nail.

As a preferred embodiment, the bending angle between the hand-held part 11 and clamping part 12 is 135 degree.

When the utility model is used, driver bit 14 is gone to by outside by tightening knob 8 and fixed, driver bit 14 will Nail is all back-outed；If nail, which is stuck in steel plate and bone, can only back-out a part, collet 17 is gone to by tightening knob 8 Outside and fixation press inward against hand-held part 11 manually, so that clamping part 12 is opened the head for clamping nail, clamping part 12 exists after loosing one's grip Extension spring 15 act under to nail fastening clamp, by 1 bottom end of sleeve by the steel plate, non-slip mat 16 contacted with steel plate play it is anti- Sliding effect makes the rotation of rotating bar 2 move up, nail is extracted by screwing handle 3；During pulling out, rotating bar 2 is in rotation It moves, the devices such as fixed link 5, fixed plate 6 and moving block 7 are influenced to be that straight line is moved up by shaft 4, help to improve conical tooth 18 to bone The chucking power of nail.

Claims

1. a kind of Orthopeadic Surgery nail withdrawing device, which is characterized in that including sleeve（1）, rotating bar（2）, handle（3）, shaft （4）, fixed link（5）, fixed plate（6）And moving block（7）；Sleeve（1）Be internally provided with rotating bar（2）, sleeve（1）Inner wall and Rotating bar（2）Outer wall be designed with the screw thread that can coordinate, sleeve（1）With rotating bar（2）It is flexibly connected by screw thread；Rotating bar （2）Top be located at sleeve（1）Outside, rotating bar（2）Top be fixedly connected with handle（3）, rotating bar（2）Bottom end by turn Axis（4）It is flexibly connected fixed link（5）, fixed link（5）Bottom end both sides be fixedly connected with fixed plate（6）, fixed plate（6）Inside bottom Portion passes through tightening knob（8）Connect moving block（7）, moving block（7）The left and right sides be equipped with and tightening knob（8）The first of cooperation Threaded hole（9）；Moving block（7）Front and rear sides be hinged bending plate（10）, bending plate（10）Hand-held part（11）Positioned at moving block （7）Front and rear sides, bending plate（10）Clamping part（12）Positioned at moving block（7）Bottom end below, moving block（7）Top surface set There is the second threaded hole（13）, the second threaded hole（13）Interior installation driver bit（14）.

2. Orthopeadic Surgery according to claim 1 nail withdrawing device, which is characterized in that the sleeve（1）Outer wall set There is anti-skid chequer.

3. Orthopeadic Surgery according to claim 1 nail withdrawing device, which is characterized in that described two bending plates（10）'s Clamping part（12）Between pass through extension spring（15）Connection.

4. Orthopeadic Surgery according to claim 1 nail withdrawing device, which is characterized in that the sleeve（1）Bottom end set There is non-slip mat（16）.

5. Orthopeadic Surgery according to claim 1 nail withdrawing device, which is characterized in that described two bending plates（10）'s Hand-held part（11）The distance between be less than sleeve（1）Internal diameter.

6. Orthopeadic Surgery according to claim 1 nail withdrawing device, which is characterized in that the bending plate（10）Clamping Portion（12）Medial surface is equipped with arc-shaped collet（17）, collet（17）Inside is equipped with conical tooth（18）.

7. Orthopeadic Surgery according to claim 1 nail withdrawing device, which is characterized in that the hand-held part（11）With clamping Portion（12）Between bending angle be 135 degree.