阅读说明：本技术 一种骨科用螺钉取出器 (Screw extractor for orthopedics ) 是由 黎观保 黎品泉 唐海 陈秋安 周伟 马鹏 刘桐源 于 2021-09-17 设计创作，主要内容包括：本发明公开了一种骨科用螺钉取出器,包括端柄,所述端柄的底端连接有连接块,所述连接块的底部开设有插接槽,所述插接槽的内部设置有插接块,所述插接块的底端连接有取出杆,所述连接块的侧部贯穿固定有框架,所述框架的内部设置有固定块,所述插接块的侧部开设有固定孔；本发明通过设计的固定块和固定孔,将其固定块的一端插入到插接块的固定孔内,从而实现对插接块的插接进行限位固定,保证其不会在使用中与端柄发生分离,通过设计的连接柱和拉环,便于对固定块进行拉动调节位置,方便对插接块的拆装。(The invention discloses an orthopedic screw extractor which comprises an end handle, wherein the bottom end of the end handle is connected with a connecting block, the bottom of the connecting block is provided with an inserting groove, an inserting block is arranged inside the inserting groove, the bottom end of the inserting block is connected with an extracting rod, the side part of the connecting block penetrates through and is fixed with a frame, a fixing block is arranged inside the frame, and the side part of the inserting block is provided with a fixing hole; according to the invention, one end of the fixing block is inserted into the fixing hole of the inserting block through the designed fixing block and fixing hole, so that the inserting of the inserting block is limited and fixed, the inserting block is prevented from being separated from the end handle in use, and the position of the fixing block is conveniently pulled and adjusted through the designed connecting column and pull ring, so that the inserting block is conveniently disassembled and assembled.)

1. The utility model provides a screw extractor for orthopedics, includes end handle (1), the bottom of end handle (1) is connected with connecting block (2), inserting groove (12) have been seted up to the bottom of connecting block (2), the inside of inserting groove (12) is provided with inserting block (11), the bottom of inserting block (11) is connected with takes out pole (4), its characterized in that: the lateral part of connecting block (2) runs through and is fixed with frame (3), the inside of frame (3) is provided with fixed block (10), fixed orifices (13) have been seted up to the lateral part of grafting piece (11), the inside of fixed orifices (13) is arranged in to the one end of fixed block (10), the other end of fixed block (10) is fixed with spliced pole (5), the one end of spliced pole (5) is passed frame (3) and is connected with the pull ring.

2. An orthopedic screw extractor as claimed in claim 1, wherein: the sliding hole has been seted up to top one side of end handle (1), the inside of sliding hole runs through there is helping hand pole (8), bar hole (6) have been seted up to the lateral wall of helping hand pole (8), the inboard center department in bar hole (6) is provided with erection column (7), the both sides of erection column (7) all are connected with rubber band (14) with the both ends in bar hole (6).

3. An orthopedic screw extractor as claimed in claim 2, wherein: the longitudinal section of the stress application rod (8) is of a circular structure, and the cross section of the stress application rod (8) is of a rectangular structure.

4. An orthopedic screw extractor as claimed in claim 1, wherein: the outer wall of the connecting column (5) is sleeved with a spring steel sheet (9), and the spring steel sheet (9) is located on the end face of the fixing block (10).

5. An orthopaedic screw extractor according to claim 4, wherein: rectangular holes are formed in the two sides of the spring steel sheet (9), and retaining columns are arranged in the rectangular holes and fixed on the surfaces of the fixing blocks (10).

6. An orthopaedic screw extractor according to claim 5, wherein: the surface of one end of the fixed block (10) is provided with an inclined plane with a certain radian, and the longitudinal section of the fixed block (10) is of a rectangular structure.

7. An orthopedic screw extractor as claimed in claim 1, wherein: the bottom of the taking-out rod (4) is provided with a taking-out joint, and the outer wall of the taking-out rod (4) is sleeved with an anti-skidding sleeve.

Technical Field

The invention belongs to the technical field of orthopedic instruments, and particularly relates to an orthopedic screw extractor.

Background

The screw extractor for orthopedics is a medical instrument which is applied to orthopedics and realizes extraction of screws for connecting steel plates, and the screws are extracted and screwed through the extraction joint at the end part and the screw connection, so that the screws are taken down from the joint of the steel plates and bones, and the steel plates are convenient to disassemble.

The existing screw extractor for orthopedics department selects a proper taking-out rod when in use, and then one end of the taking-out rod is inserted into the end handle through the plug connector to realize connection, but in actual use, because the taking-out rod and the taking-out rod are directly plugged, a limit component is not arranged for limiting, so that the end handle and the plug connector are separated in actual use, and the problem of taking out screws is influenced.

Disclosure of Invention

The invention aims to provide a screw extractor for orthopedics to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a screw extractor for orthopedics, includes the end handle, the bottom of end handle is connected with the connecting block, the inserting groove has been seted up to the bottom of connecting block, the inside of inserting groove is provided with the grafting piece, the bottom of grafting piece is connected with takes out the pole, the lateral part of connecting block runs through and is fixed with the frame, the inside of frame is provided with the fixed block, the fixed orifices has been seted up to the lateral part of grafting piece, the inside of fixed orifices is arranged in to the one end of fixed block, the other end of fixed block is fixed with the spliced pole, the one end of spliced pole is passed frame connection and is had the pull ring.

Preferably, the slide opening has been seted up to the top one side of end handle, the inside of slide opening runs through there is the atress pole, the bar hole has been seted up to the lateral wall of atress pole, the inboard center department in bar hole is provided with the erection column, the both sides of erection column all are connected with the rubber band with the both ends in bar hole.

Preferably, the longitudinal section of the stress application rod is of a circular structure, and the cross section of the stress application rod is of a rectangular structure.

Preferably, the outer wall of the connecting column is sleeved with a spring steel sheet, and the spring steel sheet is located on the end face of the fixing block.

Preferably, rectangular holes are formed in the two sides of the spring steel sheet, retaining columns are arranged inside the rectangular holes and fixed on the surfaces of the fixing blocks.

Preferably, an inclined plane with a certain radian is arranged on the surface of one end of the fixing block, and the longitudinal section of the fixing block is of a rectangular structure.

Preferably, the bottom end of the taking-out rod is provided with a taking-out joint, and the outer wall of the taking-out rod is sleeved with an anti-skidding sleeve.

Compared with the prior art, the invention has the beneficial effects that:

(1) through the designed fixing block and the fixing hole, one end of the fixing block is inserted into the fixing hole of the inserting block, so that the inserting of the inserting block is limited and fixed, the fixing block is prevented from being separated from the end handle in use, the fixing block is convenient to pull and adjust the position through the designed connecting column and the designed pull ring, the inserting block is convenient to disassemble and assemble, the designed spring steel sheet has good elasticity, the fixing block is further subjected to elastic extrusion, one end of the fixing block is prevented from being separated from the fixing hole, and the assembling and fixing of the electric connector are firmer.

(2) Through the designed rubber band strips and the mounting columns, the two rubber band strips are symmetrically connected to the inner sides of the strip-shaped holes, so that dynamic balance is realized on the stress application rod, the stress application rod is guaranteed to timely slide to two symmetrical ends without external force, the situation that one end of the stress application rod is too long, secondary damage to the affected part of a patient caused by operation is avoided, and the safety of the stress application rod is improved.

Drawings

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

FIG. 2 is an assembled partial cross-sectional view of a connection block, a plug block, a mounting block and a frame of the present invention;

FIG. 3 is an assembled bottom view of the connection block, the insertion block and the fixing block of the present invention;

FIG. 4 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;

FIG. 5 is an assembled cross-sectional view of an end handle and a force application bar of the present invention;

in the figure: 1. an end handle; 2. connecting blocks; 3. a frame; 4. taking out the rod; 5. connecting columns; 6. a strip-shaped hole; 7. mounting a column; 8. a stressing rod; 9. a spring steel sheet; 10. a fixed block; 11. an insertion block; 12. inserting grooves; 13. a fixing hole; 14. a rubber band.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 3, the present invention provides a technical solution: a screw extractor for orthopedics department comprises an end handle 1, a connecting block 2 is connected to the bottom end of the end handle 1, an inserting groove 12 is formed in the bottom of the connecting block 2, an inserting block 11 is arranged inside the inserting groove 12, a taking-out rod 4 is connected to the bottom end of the inserting block 11, a frame 3 is fixedly arranged on the side portion of the connecting block 2 in a penetrating mode, a fixing block 10 is arranged inside the frame 3, one end of the fixing block 10 is inserted into a fixing hole 13 of the inserting block 11 through the designed fixing block 10 and fixing hole 13, therefore, inserting and fixing of the inserting block 11 are limited, the fixing block is enabled not to be separated from the end handle 1 in use, the fixing hole 13 is formed in the side portion of the inserting block 11, one end of the fixing block 10 is arranged inside the fixing hole 13, a connecting column 5 is fixed to the other end of the fixing block 10, and the position of the fixing block 10 is conveniently adjusted by pulling through the designed connecting column 5 and a pull ring, the assembling and fixing device is convenient to assemble and disassemble the inserting block 11, one end of the connecting column 5 penetrates through the frame 3 to be connected with the pull ring, the spring steel sheet 9 is sleeved on the outer wall of the connecting column 5, the spring steel sheet 9 has good elasticity through the designed spring steel sheet 9, and further the fixing block 10 is subjected to elastic extrusion, so that one end of the fixing block 10 cannot be separated from the fixing hole 13, the assembling and fixing of the device are firmer, and the spring steel sheet 9 is located on the end face of the fixing block 10.

In this embodiment, it is preferred, the rectangular hole has all been seted up to spring steel sheet 9's both sides, the inside in rectangular hole is provided with the bumping post, the surface at fixed block 10 is fixed to the bumping post, the one end surface of fixed block 10 is provided with the inclined plane that is certain radian, inclined plane through the design, the setting is in the one end of fixed block 10, guarantee that it can not appear the limit angle card stopper and influence the grafting fixed inserting in inserting fixed orifices 13, the longitudinal section of fixed block 10 is the rectangle structure, the bottom of taking out pole 4 is provided with takes out the joint, the outer wall of taking out pole 4 has cup jointed anti-skidding sleeve.

Example 2

Referring to fig. 1 to 5, the present invention provides a technical solution: a screw extractor for orthopedics department comprises an end handle 1, a connecting block 2 is connected to the bottom end of the end handle 1, an inserting groove 12 is formed in the bottom of the connecting block 2, an inserting block 11 is arranged inside the inserting groove 12, a taking-out rod 4 is connected to the bottom end of the inserting block 11, a frame 3 is fixedly arranged on the side portion of the connecting block 2 in a penetrating mode, a fixing block 10 is arranged inside the frame 3, one end of the fixing block 10 is inserted into a fixing hole 13 of the inserting block 11 through the designed fixing block 10 and fixing hole 13, therefore, inserting and fixing of the inserting block 11 are limited, the fixing block is enabled not to be separated from the end handle 1 in use, the fixing hole 13 is formed in the side portion of the inserting block 11, one end of the fixing block 10 is arranged inside the fixing hole 13, a connecting column 5 is fixed to the other end of the fixing block 10, and the position of the fixing block 10 is conveniently adjusted by pulling through the designed connecting column 5 and a pull ring, the assembling and fixing device is convenient to assemble and disassemble the inserting block 11, one end of the connecting column 5 penetrates through the frame 3 to be connected with the pull ring, the spring steel sheet 9 is sleeved on the outer wall of the connecting column 5, the spring steel sheet 9 has good elasticity through the designed spring steel sheet 9, and further the fixing block 10 is subjected to elastic extrusion, so that one end of the fixing block 10 cannot be separated from the fixing hole 13, the assembling and fixing of the device are firmer, and the spring steel sheet 9 is located on the end face of the fixing block 10.

In this embodiment, it is preferred, the rectangular hole has all been seted up to spring steel sheet 9's both sides, the inside in rectangular hole is provided with the bumping post, the surface at fixed block 10 is fixed to the bumping post, the one end surface of fixed block 10 is provided with the inclined plane that is certain radian, inclined plane through the design, the setting is in the one end of fixed block 10, guarantee that it can not appear the limit angle card stopper and influence the grafting fixed inserting in inserting fixed orifices 13, the longitudinal section of fixed block 10 is the rectangle structure, the bottom of taking out pole 4 is provided with takes out the joint, the outer wall of taking out pole 4 has cup jointed anti-skidding sleeve.

In the embodiment, preferably, a slide hole is formed in one side of the top end of the end handle 1, a reinforcing rod 8 penetrates through the slide hole, a strip-shaped hole 6 is formed in the side wall of the reinforcing rod 8, an installation column 7 is arranged at the center of the inner side of the strip-shaped hole 6, rubber strips 14 are connected to two sides of the installation column 7 and two ends of the strip-shaped hole 6, the two rubber strips 14 are symmetrically connected to the inner side of the strip-shaped hole 6 through the designed rubber strips 14 and the installation column 7, so that dynamic balance is achieved for the reinforcing rod 8, the reinforcing rod 8 can be guaranteed to be timely slid to be symmetrical to two ends without external force, the situation that one end of the reinforcing rod is too long, secondary damage to an affected part of a patient caused in operation is avoided, the safety of the invention is improved, the longitudinal section of the reinforcing rod 8 is of a circular structure, and the cross section of the reinforcing rod 8 is of a rectangular structure.

The working principle and the using process of the invention are as follows: when the invention is used, the insertion block 11 at one end of the taking-out rod 4 is inserted into the insertion groove 12 of the connecting block 2, in the insertion process, the fixing block 10 is pulled through the connecting column 5 to slide into the frame 3, so that the insertion of the insertion block 11 is prevented from being influenced, when the insertion block is inserted into the insertion groove 12, the fixing block 10 is inserted into the fixing hole 13 of the insertion block 11 again, so that the insertion and fixing of the insertion block 11 are realized, wherein the elastic extrusion is applied through the spring steel sheet 9, so that the fixing block 10 is prevented from being separated from the fixing hole 13 in use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.