CN215192128U - Medical orthopedic screw - Google Patents
Medical orthopedic screw Download PDFInfo
- Publication number
- CN215192128U CN215192128U CN202120664035.0U CN202120664035U CN215192128U CN 215192128 U CN215192128 U CN 215192128U CN 202120664035 U CN202120664035 U CN 202120664035U CN 215192128 U CN215192128 U CN 215192128U
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- Prior art keywords
- screw
- medical
- nail
- screw according
- nut
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000000399 orthopedic effect Effects 0.000 title claims abstract description 32
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 6
- 210000000988 bone and bone Anatomy 0.000 description 4
- 239000011148 porous material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- 208000011708 Avulsion fracture Diseases 0.000 description 1
- 206010065433 Ligament rupture Diseases 0.000 description 1
- 206010043248 Tendon rupture Diseases 0.000 description 1
- 208000003443 Unconsciousness Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
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Abstract
The utility model provides a medical orthopedic screw, which belongs to the technical field of medical instruments. It has solved the inconvenient problem of current medical screw and stylolite connection. This medical orthopedics screw, including the nail body and set up the nail cap in nail body upper end, the lateral wall of the nail body is equipped with screw thread portion, and the middle part of nail cap is equipped with the through wires hole that transversely sets up and run through. The medical orthopedic screw has the advantages of convenience in connecting suture lines and low cost.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, a screw, especially a medical orthopedics screw is related to.
Background
The parts such as muscles, tendons and bones in orthopedic trauma diseases such as avulsion fracture, tendon and ligament rupture need to be restored and fixedly connected through a repair operation after being damaged, and the damaged parts need to be restored, fixed and connected through a suture anchor in the repair operation.
For example, a medical anchor type cancellous bone screw (application No. 201410083133.X) disclosed in Chinese patent document comprises an outer screw and two fixing pins, wherein the outer screw has an integral structure which is divided into a head side and a tail side, and a cylindrical hollow pore passage for inserting a guide pin when the screw is screwed in is arranged in the outer screw; two J-shaped pore channels are symmetrically arranged in the outer screw, two fixing pins are inserted into the two J-shaped pore channels, and the two fixing pins and the outer screw form an anchor type structure. The fixing pin is extended out of the side of the screw, so that the contact mode of the cancellous screw and the bone is changed, the loosening and even falling-out incidence rate of the cancellous screw can be reduced, and the anti-rotation and anti-sliding capacity of the cancellous screw is effectively improved. But the medical anchor type cancellous bone screw is inconvenient to connect with the suture.
Disclosure of Invention
The utility model aims at solving the problems in the prior art, and provides a medical orthopedic screw convenient for connecting suture lines and low in cost.
The purpose of the utility model can be realized by the following technical proposal: medical orthopedics screw, including the nail body and set up the head of a nail in nail body upper end, its characterized in that, the lateral wall of the nail body be equipped with screw thread portion, the middle part of the head of a nail be equipped with horizontal setting and the through wires hole that runs through.
Be equipped with the through wires hole that transversely runs through on the middle part of nail cap, pass the suture line through the through wires hole and link firmly mutually with the nail cap during the use, have simple structure, the effectual and with low costs advantage of connection.
In the medical orthopedic screw, the diameter of the threading hole is 1.2-2.2 mm.
In the medical orthopedic screw, the diameter of the threading hole is 1.5 mm.
In the medical orthopedic screw, the lower end surface of the screw cap is a plane which is perpendicular to the axial direction of the screw body.
In the medical orthopedic screw, the lower end surface of the screw cap is an arc-shaped surface.
In the medical orthopedic screw, the outer side wall of the screw cap is provided with an upper threaded part, and the threads of the upper threaded part are connected with the threads of the threaded part.
In the medical orthopedic screw, the medical orthopedic screw is made of medical titanium alloy. The medical orthopedic screw is made of medical titanium alloy and has the advantages of high strength, fatigue resistance and excellent biocompatibility.
In the medical orthopedic screw, the upper end surface of the screw cap is provided with a cross-shaped groove. By adopting the arrangement, the screw is convenient to rotate, and has the advantages of simple structure and convenience in use.
In the medical orthopedic screw, the upper end surface of the screw cap is provided with the inner hexagonal groove. By adopting the arrangement, the screw is convenient to rotate, and has the advantages of simple structure and convenience in use.
In the medical orthopedic screw, the upper end surface of the screw cap is provided with a plum blossom groove. By adopting the arrangement, the screw is convenient to rotate, and has the advantages of simple structure and convenience in use.
Compared with the prior art, the medical orthopedic screw has the following advantages:
1. the middle part of the nail cap is provided with a thread hole which transversely penetrates through the middle part, and when the nail cap is used, a suture thread penetrates through the thread hole and is fixedly connected with the nail cap, so that the nail cap has the advantages of simple structure, good connection effect and low cost;
2. the medical orthopedic screw is made of medical titanium alloy and has the advantages of high strength, fatigue resistance and excellent biocompatibility.
Drawings
Fig. 1 is a structural schematic diagram of the medical orthopedic screw.
Fig. 2 is a structural schematic diagram of another mode of the medical orthopedic screw.
Fig. 3 is a top schematic view of the nut of the medical orthopedic screw.
Fig. 4 is a top schematic view of another structure of the screw cap of the medical orthopedic screw.
Fig. 5 is a top schematic view of another structure of the screw cap of the medical orthopedic screw. .
In the figure, 1, a nail body; 2. a nail cap; 3. a threaded portion; 4. threading holes; 5. a plane; 6. an arc-shaped surface; 7. an upper threaded portion; 8. a cross-shaped groove; 9. an inner hexagonal groove; 10. plum blossom groove.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in figure 1, the medical orthopedic screw is made of medical titanium alloy and comprises a screw body 1 and a screw cap 2 arranged at the upper end of the screw body 1, wherein a thread part 3 is arranged on the outer side wall of the screw body 1, and a thread hole 4 which is transversely arranged and penetrates through is formed in the middle of the screw cap 2. The diameter of the threading hole 4 is 1.2-2.2 mm. Preferably, the diameter of the threading hole 4 is 1.5 mm. The lower end surface of the nail cap 2 is a plane 5 which is vertical to the axial direction of the nail body 1.
Alternatively, as shown in fig. 2, the lower end surface of the nut 2 is an arc-shaped surface 6, the outer side wall of the nut 2 is provided with an upper threaded portion 7, and the threads of the upper threaded portion 7 are connected with the threads of the threaded portion 3.
Be equipped with the through wires hole 4 that transversely runs through on the middle part of nail cap 2, pass through wires hole 4 with the stylolite and link firmly mutually with nail cap 2 during the use, have simple structure, the good and with low costs advantage of connection effect. The medical orthopedic screw is made of medical titanium alloy and has the advantages of high strength, fatigue resistance and excellent biocompatibility.
As shown in figure 3, the upper end surface of the screw cap 2 is provided with the inner hexagonal groove 9, so that the screw is convenient to rotate, and the screw has the advantages of simple structure and convenience in use.
Preferably, as shown in fig. 4, the upper end surface of the screw cap 2 is provided with a cross-shaped groove 8, so that the screw is convenient to rotate, and the screw has the advantages of simple structure and convenience in use.
Preferably, as shown in fig. 5, the upper end surface of the nut 2 is provided with a plum blossom groove 10, so that the screw can be conveniently rotated, and the nut has the advantages of simple structure and convenience in use.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms of the nail body 1, the nail cap 2, the threaded part 3, the threading hole 4, the flat surface 5, the arc-shaped surface 6, the upper threaded part 7, the cross-shaped groove 8, the inner hexagonal groove 9, the quincuncial groove 10, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (10)
1. Medical orthopedics screw, including the nail body (1) and set up nail cap (2) in nail body (1) upper end, its characterized in that, the lateral wall of the nail body (1) be equipped with screw thread portion (3), the middle part of nail cap (2) be equipped with horizontal setting and through wires hole (4) that run through.
2. The medical orthopedic screw according to claim 1, characterized in that the diameter of the threading hole (4) is 1.2-2.2 mm.
3. The medical orthopaedic screw according to claim 1, wherein the threading hole (4) has a diameter of 1.5 mm.
4. The medical orthopaedic screw according to claim 1, 2 or 3, wherein the lower end surface of the nut (2) is a plane (5) arranged perpendicular to the axial direction of the body (1).
5. The medical orthopaedic screw according to claim 1, 2 or 3, wherein the lower end face of the nut (2) is an arc-shaped face (6).
6. The medical orthopedic screw according to claim 5, characterized in that the outer side wall of the nut (2) is provided with an upper thread part (7) and the thread of the upper thread part (7) is connected with the thread of the thread part (3).
7. The medical orthopaedic screw according to claim 1, 2 or 3, wherein it is made of medical titanium alloy.
8. Medical orthopaedic screw according to claim 1, 2 or 3, wherein the upper end face of the nut (2) is provided with a cross groove (8).
9. Medical orthopaedic screw according to claim 1, 2 or 3, wherein the upper end face of the nut (2) is provided with a hexagonal socket (9).
10. The medical orthopaedic screw according to claim 1, 2 or 3, wherein the upper end surface of the nut (2) is provided with a quincunx groove (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120664035.0U CN215192128U (en) | 2021-03-31 | 2021-03-31 | Medical orthopedic screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120664035.0U CN215192128U (en) | 2021-03-31 | 2021-03-31 | Medical orthopedic screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215192128U true CN215192128U (en) | 2021-12-17 |
Family
ID=79445254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120664035.0U Expired - Fee Related CN215192128U (en) | 2021-03-31 | 2021-03-31 | Medical orthopedic screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215192128U (en) |
-
2021
- 2021-03-31 CN CN202120664035.0U patent/CN215192128U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211217 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |