CN210541791U

CN210541791U - Steel plate extractor for screw sliding in orthopedic surgery

Info

Publication number: CN210541791U
Application number: CN201920289932.0U
Authority: CN
Inventors: 赵兴东; 肖芳; 潘胜红
Original assignee: Guizhou Aerospace Hospital
Current assignee: Guizhou Aerospace Hospital
Priority date: 2019-03-07
Filing date: 2019-03-07
Publication date: 2020-05-19
Anticipated expiration: 2029-03-07

Abstract

The utility model discloses a steel sheet extractor of smooth silk of screw in orthopedics art, including roof and support, the guide slot has been seted up at the middle part of roof, and installs the pull rod in the guide slot to run through being provided with the pole-raising in the pull rod, the up end of roof is connected with the bracing piece through the pivot, and the one end of bracing piece is located supports the inslot, the support is fixed in the bottom edge of roof, and the limit end reservation of support bottom has the spacing groove, the activity groove has been seted up to the bottom of pull rod, be fixed with the connecting rod on the activity ball, and the one end welding of connecting rod has the clamp splice, the one end of clamp splice is connected through the inboard of pivot with the support, and bonds between the clamp splice and has the silica gel film. This smooth steel sheet extractor of silk of screw in orthopedics art conveniently presss from both sides the steel sheet clamp and gets fixedly, then supports the silica gel film with the pole of rising and takes out the operation to smooth screw of silk, can install simultaneously according to the operation position of difference and adjust.

Description

Steel plate extractor for screw sliding in orthopedic surgery

Technical Field

The utility model relates to the technical field of orthopedic surgery, in particular to a steel plate extractor for screw sliding in orthopedic surgery.

Background

In the orthopedic surgery, the steel plate is usually used to reduce the severe fractured end and then bridge and fix the fractured end to restore the fracture line and heal the fractured end, and the fixation of the steel plate generally adopts fastening screws, and similarly, after the fracture of a patient heals, the steel plate and the screws are often required to be taken out for internal fixation, and the internal fixation is often difficult to take out due to the fact that the screws slide during the taking out process, so a specific steel plate extractor is required at this time, however, the existing steel plate extractor has the following problems:

current steel sheet extractor to the inconvenient taking out of screw of smooth silk, causes the secondary damage easily, current steel sheet extractor is inconvenient simultaneously fixes according to the operation position of difference.

In order to solve the problems, innovative design is urgently needed on the basis of the original steel plate extractor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a smooth steel sheet extractor of silk of screw in orthopedics art to solve above-mentioned background art and propose the inconvenient screw of taking out smooth silk of current steel sheet extractor, the inconvenient problem of adjusting its mounted position simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a steel sheet extractor of smooth silk of screw in orthopedics art, includes roof and support, the guide slot has been seted up at the middle part of roof, and installs the pull rod in the guide slot to run through being provided with the pole-raising in the pull rod, the up end of roof is connected with the bracing piece through the pivot, and the one end of bracing piece is located supports the inslot, and supports the lower terminal surface that the groove was seted up at the pull rod top, the support is fixed in the bottom edge of roof, and the limit end of support bottom has reserved the spacing groove to spacing inslot is connected with the chassis, the activity groove has been seted up to the bottom of pull rod, and installs the activity ball in the activity inslot, be fixed with the connecting rod on the activity ball, and the one end welding of connecting rod has the clamp splice, the one end of clamp splice is connected through the inboard of pivot with the support, and bonds between.

Preferably, the bottom of the pull rod is designed to be a rectangular structure, and the cross sectional area of the bottom of the pull rod is equal to that of the guide groove.

Preferably, the lifting rod is in threaded connection with the pull rod, and the lifting rod and the pull rod share a central axis.

Preferably, the top of the support rod is clamped with the support groove, and the number of the support rods is 2 symmetrically arranged relative to the central axis of the pull rod.

Preferably, the middle part of the bracket is provided with a connecting column and a connecting groove, the connecting column is positioned in the connecting groove, and the diameter of the connecting column is equal to the inner diameter of the connecting groove.

Preferably, the top of the bottom frame is in sliding connection with the limiting groove, and the outer side of the top of the bottom frame is attached to the inner wall of the limiting groove.

Preferably, the diameter of the movable ball is equal to the inner diameter of the movable groove, and the movable ball and the connecting rod are of a welding integrated structure.

Compared with the prior art, the beneficial effects of the utility model are that: the steel plate extractor for the screw sliding in the orthopedic surgery is convenient to clamp and fix a steel plate, then supports the lifting rod against the silica gel film to extract the screw sliding, and can be installed and adjusted according to different surgical positions;

1. the pull rod with a rectangular structure is pulled up and down in the guide groove, and meanwhile, the diameter of the movable ball is equal to the inner diameter of the movable groove, so that the connecting rod and the clamping blocks can be driven to operate under the auxiliary action of the movable ball, and the steel plate is clamped by the two clamping blocks;

2. threaded connection between pole and the pull rod through setting up, can rotate the pole, make the pole support the silica gel film, strengthen the pole bottom and the frictional force of smooth silk screw, simultaneously under the fixed condition is got to the clamp at the steel sheet, can take out smooth silk screw and steel sheet together, the top of pole is provided with extending structure, can adjust the length of pole, be convenient for put forth effort, the middle part of support rotates through spliced pole and spread groove simultaneously, be applicable to the dead ahead and take out of side smooth silk screw.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a schematic top view of the cross-sectional structure of the present invention;

FIG. 4 is a schematic view of the three-dimensional structure of the clamping block of the present invention;

fig. 5 is a schematic structural diagram of the point B in fig. 1 according to the present invention.

In the figure: 1. a top plate; 2. a guide groove; 3. a pull rod; 4. lifting the rod; 5. a rotating shaft; 6. a support bar; 7. a support groove; 8. a support; 801. connecting columns; 802. connecting grooves; 9. a limiting groove; 10. a chassis; 11. a movable groove; 12. a movable ball; 13. a connecting rod; 14. a clamping block; 15. a silicone film; 16. a fastener.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a steel plate extractor for screw sliding in orthopaedics comprises a top plate 1, a guide groove 2, a pull rod 3, a lifting rod 4, a rotating shaft 5, a support rod 6, a support groove 7, a support 8, a limit groove 9, an underframe 10, a movable groove 11, a movable ball 12, a connecting rod 13, a clamping block 14, a silica gel film 15 and a fastener 16, wherein the guide groove 2 is arranged in the middle of the top plate 1, the pull rod 3 is installed in the guide groove 2, the lifting rod 4 penetrates through the pull rod 3, the upper end face of the top plate 1 is connected with the support rod 6 through the rotating shaft 5, one end of the support rod 6 is positioned in the support groove 7, the support groove 7 is arranged on the lower end face of the top of the pull rod 3, the support 8 is fixed at the edge of the bottom of the top plate 1, the limit groove 9 is reserved at the edge end of the bottom of the support 8, the underframe 10 is connected in the limit groove 9, the movable groove 11 is arranged, a connecting rod 13 is fixed on the movable ball 12, clamping blocks 14 are welded at one end of the connecting rod 13, one end of each clamping block 14 is connected with the inner side of the support 8 through the rotating shaft 5, a silica gel film 15 is bonded between the clamping blocks 14, and a fastener 16 is installed on the underframe 10;

the bottom of the pull rod 3 is designed to be a rectangular structure, and the cross section area of the bottom of the pull rod 3 is equal to that of the guide groove 2, so that the pull rod 3 can stably slide up and down in the guide groove 2, the pull rod 3 is prevented from being deviated, and a user only needs to push the pull rod 3 up and down;

the lifting rod 4 is in threaded connection with the pull rod 3, and the lifting rod 4 and the pull rod 3 share the same central axis, so that the lifting rod 4 can change position depending on the pull rod 3, and a screw of a sliding thread can be conveniently taken out through the lifting rod 4 and the silica gel sheet 15;

the top of the support rod 6 is clamped with the

support groove

7, and 2 support rods 6 are symmetrically arranged about the central axis of the pull rod 3, so that the support rod 6 is clamped into the support rod 6 to fix the position of the pull rod 3, and the device keeps a state of clamping a steel plate;

the middle part of the bracket 8 is provided with a connecting column 801 and a connecting groove 802, the connecting column 801 is positioned in the connecting groove 802, the diameter of the connecting column 801 is equal to the inner diameter of the connecting groove 802, so that the middle part of the bracket 8 can rotate through the connecting column 801 and the connecting groove 802, the angle of the bottom frame 10 at the bottom of the bracket 8 is adjusted, and the device can be suitable for taking out the sliding screw at the front end and the side;

the top of the bottom frame 10 is in sliding connection with the limiting groove 9, the outer side of the top of the bottom frame 10 is attached to the inner wall of the limiting groove 9, the position of the bottom frame 10 is adjusted by sliding the bottom frame 10 in the limiting groove 9, so that the supporting position of the bottom frame 10 can be adjusted according to different operation requirements, and stable support of the device is achieved;

the diameter of the movable ball 12 is equal to the inner diameter of the movable groove 11, and the movable ball 12 and the connecting rod 13 are of a welding integrated structure, so that the movable ball 12 can rotate in the movable groove 11, the connecting rod 13 can pull the clamping block 14 to change the position, and a steel plate is clamped.

The working principle is as follows: when the steel plate extractor with screw sliding in orthopedic surgery is used, as shown in fig. 1-5, firstly, the position of the underframe 10 is adjusted according to the surgical site, the underframe 10 slides in the limiting groove 9 on the bracket 8, then the adjusted underframe 10 is fixed through the fastening bolt, the commonly used internal fixation position is a horizontal position, the surgery is performed on the lateral side of the limb, the position between the underframe 10 and the raised cross bars on the bracket 8 is adjusted according to the lateral position of the surgery, so that the bed plate is positioned between the underframe 10 and the raised cross bars on the bracket 8, then the position of the underframe 10 is fixed through the fastening piece 16, so that the position of the device is fixed, the sizes of the bracket 8 and the underframe 10 can be processed and set according to the actual situation, then the pull rod 3 is pulled upwards, so that the pull rod 3 slides in the guide groove 2, and simultaneously the pull rod 3 drives the connecting rod 13 to move upwards through the movable ball 12, the connecting rod 13 drives the 2 clamping blocks 14 to contract inwards and move upwards, meanwhile, the movable ball 12 rotates in the movable groove 11, the clamping blocks 14 rotate on the inner side of the support 8 through the rotating shaft 5, the operation of the clamping blocks 14 is completed, so that a steel plate can be clamped and fixed through the 2 clamping blocks 14, then the supporting rod 6 rotates on the top plate 1 through another rotating shaft 5, the top of the supporting rod 6 is clamped into the supporting groove 7, the clamping blocks 14 are made of rubber, the operation of the pull rod 3 can be buffered while the steel plate is clamped through the clamping blocks 14, the supporting rod 6 can be clamped into the supporting groove 7, the position of the pull rod 3 is fixed, then the lifting rod 4 is manually rotated, the lifting rod 4 moves downwards and supports against the silica gel sheet 15, the bottom of the lifting rod 4 supports against a slide screw to be screwed out through the silica gel sheet 15, and the friction force of the lifting rod 4 and the slide screw is increased, then reverse rotation pole 4 will slide the silk screw and take out, take out the steel sheet, the top of pole 4 is provided with extending structure, can adjust the length of pole 4, make pole 4 have sufficient length can support sufficient strength, silica gel film 15 here is fixed on 2 clamp splice 14 through fastening screw, the installation of conveniently dismantling, thereby can dismantle and change the silica gel film 15 that has wearing and tearing after using, simultaneously, can pass through spliced pole 801 rotation in spread groove 802 with the middle part of support 8 in advance, then will rotate the rigidity of back spliced pole 801 through fastening bolt, can adjust the angle of support 8 and roof 1, be applicable to the taking out of front end and side slide the silk screw, can carry out the installation of corresponding position with 2 supports 8 according to the left and right positions of steel sheet and slide the silk screw simultaneously.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a steel sheet extractor of smooth silk of screw in orthopedics art, includes roof (1) and support (8), its characterized in that: the middle part of the top plate (1) is provided with a guide groove (2), a pull rod (3) is installed in the guide groove (2), a lifting rod (4) penetrates through the pull rod (3), the upper end face of the top plate (1) is connected with a support rod (6) through a rotating shaft (5), one end of the support rod (6) is located in a support groove (7), the support groove (7) is formed in the lower end face of the top of the pull rod (3), the support (8) is fixed at the edge of the bottom of the top plate (1), a limit groove (9) is reserved at the edge end of the bottom of the support (8), an underframe (10) is connected in the limit groove (9), a movable groove (11) is formed in the bottom of the pull rod (3), a movable ball (12) is installed in the movable groove (11), a connecting rod (13) is fixed on the movable ball (12), and a clamping block (14) is welded at one end of the connecting rod (13, one end of each clamping block (14) is connected with the inner side of the support (8) through the rotating shaft (5), a silica gel film (15) is bonded between the clamping blocks (14), and a fastening piece (16) is installed on the bottom frame (10).

2. The steel plate extractor for screw sliding in orthopaedics, according to claim 1, is characterized in that: the bottom of the pull rod (3) is designed to be of a rectangular structure, and the cross section area of the bottom of the pull rod (3) is equal to that of the guide groove (2).

3. The steel plate extractor for screw sliding in orthopaedics, according to claim 1, is characterized in that: the lifting rod (4) is in threaded connection with the pull rod (3), and the lifting rod (4) and the pull rod (3) share the same central axis.

4. The steel plate extractor for screw sliding in orthopaedics, according to claim 1, is characterized in that: the top of the support rod (6) is clamped with the support groove (7), and the number of the support rods (6) is 2 about the central axis of the pull rod (3).

5. The steel plate extractor for screw sliding in orthopaedics, according to claim 1, is characterized in that: the middle part of support (8) is provided with spliced pole (801) and connecting groove (802), and spliced pole (801) is located connecting groove (802), and the diameter of spliced pole (801) equals the internal diameter of connecting groove (802).

6. The steel plate extractor for screw sliding in orthopaedics, according to claim 1, is characterized in that: the top of the bottom frame (10) is connected with the limiting groove (9) in a sliding mode, and the outer side of the top of the bottom frame (10) is attached to the inner wall of the limiting groove (9) mutually.

7. The steel plate extractor for screw sliding in orthopaedics, according to claim 1, is characterized in that: the diameter of the movable ball (12) is equal to the inner diameter of the movable groove (11), and a welding integrated structure is arranged between the movable ball (12) and the connecting rod (13).