CN211512027U

CN211512027U - Medical screw extractor

Info

Publication number: CN211512027U
Application number: CN201922051956.5U
Authority: CN
Inventors: 姜扩; 李佳; 单乐群; 张吉涛
Original assignee: Xian Honghui Hospital
Current assignee: Xian Honghui Hospital
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-09-18
Anticipated expiration: 2029-11-25

Abstract

The utility model discloses a medical screw extractor, the protective cover comprises a cover body, actuating mechanism, the mounting groove, moving mechanism, extrusion mechanism, the cross hole, slide mechanism, this medical screw extractor, medical personnel are through the use to actuating mechanism, with this let actuating mechanism drive extrusion mechanism drive slide mechanism and adjust the processing, the size after letting slide mechanism adjust promptly and the size phase-match of the cross groove of required screw department of taking out, with this be convenient for medical personnel use the device to take out the screw of different grade type from the patient is internal, can know by the aforesaid, medical personnel only need carry the device can carry out the assorted use with the screw of different grade type, can know from this, device in this application, medical personnel's convenience of carrying medical instrument has been ensured.

Description

Medical screw extractor

Technical Field

The utility model relates to an extractor especially relates to medical screw extractor.

Background

Medical screw is the internal fixation spare that is used for the fracture position to fix, because of the type of medical screw is different, lead to the cross recess's of medical screw head end department also different size, when medical personnel used traditional medical screw extractor, medical personnel need select with medical screw cross recess assorted extractor, with this take out the screw from patient's is internal, can know by the aforesaid, when medical personnel need take out the screw of different grade type size, at this moment, medical personnel need carry the extractor of most volume different grade type, the convenience that medical personnel carried medical instrument has greatly been influenced, in view of above defect, it is necessary to design medical screw extractor in fact.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve lies in: provides a medical screw extractor to solve the problems of the background technology.

In order to solve the technical problem, the technical scheme of the utility model is that: medical screw extractor, including the cover body, actuating mechanism, mounting groove, moving mechanism, extrusion mechanism, cross hole, slide mechanism, the internal portion top of cover rotate and be equipped with actuating mechanism, the internal portion upper end left and right sides an organic whole of cover be equipped with the mounting groove, the outside screw thread cover of actuating mechanism be equipped with moving mechanism, moving mechanism bottom the extrusion mechanism has set firmly, the internal portion bottom an organic whole of cover be equipped with the cross hole, the inside slip of cross hole be equipped with quantity four slide mechanism, slide mechanism contained angle between two liang be 90.

Furthermore, the driving mechanism consists of a screw and a handle.

Furthermore, the top end inside the sleeve body is rotatably sleeved with a screw rod, and the top of the screw rod is fixedly provided with a handle.

Furthermore, the moving mechanism consists of a nut and a sliding block, and the nut is sleeved on the external thread of the screw rod.

Furthermore, the left side and the right side of the nut are fixedly provided with sliding blocks, and the sliding blocks are connected with the mounting groove in a sliding manner.

Furthermore, the extrusion mechanism consists of a U-shaped rod and a top pin.

Furthermore, a U-shaped rod is fixedly arranged at the bottom of the nut, and a top pin is fixedly arranged at the bottom of the U-shaped rod.

Furthermore, the sliding mechanism consists of a sliding pin, an inserting strip and a spring.

Furthermore, four sliding pins are arranged in the cross hole in a sliding mode, and the included angle between every two sliding pins is 90 degrees.

Furthermore, the bottom of the sliding pin is fixedly provided with an inserting strip, the upper end of the outer wall of the sliding pin is fixedly provided with a spring, and the spring is fixedly connected with the sleeve body.

Compared with the prior art, this medical screw extractor, medical personnel are through the use to actuating mechanism, with this let actuating mechanism drive extrusion mechanism drive slide mechanism and adjust the processing, let the size after slide mechanism adjusts promptly and the required size phase-match that takes out the cross recess of screw department, with this be convenient for medical personnel use the device with the screw of different grade type take out from the patient internal, by the aforesaid can, medical personnel only need carry the device can carry out the assorted use with the screw of different grade type, can know from this, device in this application, medical personnel's convenience of carrying medical instrument has been ensured.

Drawings

FIG. 1 is a partial front cross-sectional view of a medical screw extractor;

FIG. 2 is a top cross-sectional view of the sleeve and the moving mechanism;

FIG. 3 is a top cross-sectional view of the sleeve and the sliding mechanism;

fig. 4 is an enlarged partial cross-sectional view of the interior of the jacket body.

The device comprises a sleeve body 1, a driving mechanism 2, a mounting groove 3, a moving mechanism 4, an extrusion mechanism 5, a cross hole 6, a sliding mechanism 7, a screw rod 8, a handle 9, a nut 10, a sliding block 11, a U-shaped rod 12, a top pin 13, a sliding pin 14, a cutting bar 15 and a spring 16.

The following detailed description will be further described in conjunction with the above-identified drawings.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the concepts underlying the described embodiments. It will be apparent, however, to one skilled in the art, that the described embodiments may be practiced without some or all of these specific details. In other instances, well known process steps have not been described in detail.

Example 1

As shown in fig. 1 and 3, medical screw extractor, including the cover body 1, actuating mechanism 2, mounting groove 3, moving mechanism 4, extrusion mechanism 5, cross hole 6, slide mechanism 7, the inside top of the cover body 1 rotate and be equipped with actuating mechanism 2, the inside upper end left and right sides an organic whole of the cover body 1 be equipped with

mounting groove

3, 2 outside screw thread covers of actuating mechanism be equipped with moving mechanism 4, moving mechanism 4 bottom extrusion mechanism 5 has set firmly, the inside bottom an organic whole of the cover body 1 be equipped with cross hole 6, the inside slip of cross hole 6 be equipped with quantity for four slide mechanism 7, slide mechanism 7 contained angle between two liang be 90.

This medical screw extractor, medical personnel hold the cover body 1 with the left hand, rotate actuating mechanism 2 with the right hand to this lets actuating mechanism 2 drive moving mechanism 3 extrude the processing with extrusion mechanism 4 to sliding mechanism 7, and sliding mechanism 7 after being extruded outwards expands the processing, and the state after 7 bottoms of sliding mechanism are adjusted and the cross recess phase-match back of medical screw department, and medical personnel's right hand is released actuating mechanism 2, and medical personnel use the device with the internal screw of patient take out can.

Example 2

As shown in fig. 1, 2, 3 and 4, the medical screw extractor comprises a sleeve body 1, a driving mechanism 2, a mounting groove 3, a moving mechanism 4, an extruding mechanism 5, a cross hole 6 and a sliding mechanism 7, wherein the driving mechanism 2 is arranged on the top end inside the sleeve body 1 in a rotating manner, the mounting groove 3 is integrally arranged on the left side and the right side of the upper end inside the sleeve body 1, the moving mechanism 4 is sleeved on the outer thread of the driving mechanism 2, the extruding mechanism 5 is fixedly arranged at the bottom of the moving mechanism 4, the cross hole 6 is integrally arranged at the bottom end inside the sleeve body 1, the sliding mechanisms 7 are arranged in the cross hole 6 in a sliding manner, the sliding mechanisms 7 have an included angle of 90 degrees, the driving mechanism 2 consists of a screw rod 8 and a handle 9, the screw rod 8 is sleeved on the top end inside the sleeve body 1 in a rotating manner, the handle 9 is fixedly arranged at the top of the, moving mechanism 4 constitute by nut 10 and

slider

11, 8 outside screw thread covers of screw rod be equipped with nut 10, the nut 10 left and right sides slider 11 has set firmly,

slider

11 and 3 sliding connection of mounting groove, extrusion mechanism 5 constitute by U-shaped pole 12 and knock pin 13, nut 10 bottom set firmly U-shaped pole 12, U-shaped pole 12 bottom set firmly knock pin 13, sliding mechanism 7 constitute by sliding pin 14, cutting 15 and

spring

16, 6 inside slides and is equipped with the sliding pin 14 that quantity is four, 14 two liang of contained angles of sliding pin be 90, 14 bottoms of sliding pin set firmly cutting 15, 14 outer wall upper ends of sliding pin set firmly spring 16, spring 16 and cover body 1 fixed connection.

The medical screw extractor comprises a medical staff, wherein the medical staff holds a sleeve body 1 with a left hand first, then rotates a handle 9 clockwise with a right hand, so that the handle 9 drives a screw to rotate clockwise, the nut 10 drives a sliding block 11 to move from top to bottom along the direction of an installation groove 3 under the action of screw transmission of the screw 8 and the nut 10, namely, the nut 10 drives a U-shaped rod 12 and a top pin 13 to move from top to bottom along the direction of the sleeve body 1, at the moment, the top pin 13 applies extrusion force to a sliding pin 14, so that the sliding pins 14 with four numbers and 90-degree included angles between every two sliding pins move along the outer side direction of a cross hole 6, and synchronously, a spring 16 deforms until the state of the sliding pin 14 after adjustment is matched with a cross groove at the medical screw, the medical staff releases the handle 9 with the hand, inserts an inserting strip 15 into the cross groove of the medical screw, and then rotates anticlockwise with the hand, therefore, the device and the medical screw are taken out of the patient, after the device is used, the medical staff rotates the handle 9 anticlockwise, the opposite steps are carried out, namely, the extrusion force of the ejector pin 13 on the sliding pin 14 disappears, the sliding pin 14 and the inserting strip 15 are reset through the action of the resilience force of the spring 16, and the bottom of the ejector pin 13 is in a conical shape.

Claims

1. Medical screw extractor, its characterized in that is including the cover body, actuating mechanism, mounting groove, moving mechanism, extrusion mechanism, cross hole, slide mechanism, the inside top of cover rotate and be equipped with actuating mechanism, the inside upper end left and right sides an organic whole of cover be equipped with the mounting groove, the outside screw thread cover of actuating mechanism be equipped with moving mechanism, moving mechanism bottom the extrusion mechanism has set firmly, the inside bottom an organic whole of cover be equipped with the cross hole, the inside slip of cross hole be equipped with quantity four slide mechanism, slide mechanism contained angle between two liang be 90.

2. A medical screw extractor as claimed in claim 1, wherein said drive mechanism comprises a screw and a handle.

3. The medical screw extractor as claimed in claim 2, wherein a screw is rotatably sleeved at the top end of the inside of the sleeve body, and a handle is fixedly arranged at the top of the screw.

4. The medical screw extractor of claim 2 wherein said moving mechanism comprises a nut and a slide, and said screw is externally threaded with a nut.

5. The medical screw extractor of claim 4, wherein sliding blocks are fixedly arranged on the left and right sides of the nut, and the sliding blocks are slidably connected with the mounting groove.

6. A medical screw extractor as claimed in claim 1 wherein said pressing mechanism comprises a U-shaped lever and a knock pin.

7. A medical screw extractor according to claim 4, wherein a U-shaped bar is secured to the bottom of the nut and a top pin is secured to the bottom of the U-shaped bar.

8. A medical screw extractor as claimed in claim 1 wherein said slide mechanism comprises a slide pin, a plunger, and a spring.

9. A medical screw extractor according to claim 8 wherein four slide pins are slidably disposed within said cross-shaped aperture, said slide pins being disposed at an angle of 90 ° to one another.

10. The medical screw extractor of claim 9, wherein the bottom of the slide pin is fixedly provided with a cutting strip, the upper end of the outer wall of the slide pin is fixedly provided with a spring, and the spring is fixedly connected with the sleeve body.