CN216797802U - Medical instrument fixing threaded nail - Google Patents
Medical instrument fixing threaded nail Download PDFInfo
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- CN216797802U CN216797802U CN202122968651.8U CN202122968651U CN216797802U CN 216797802 U CN216797802 U CN 216797802U CN 202122968651 U CN202122968651 U CN 202122968651U CN 216797802 U CN216797802 U CN 216797802U
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- nail
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Abstract
The utility model discloses a fixed threaded nail for medical instruments, which comprises a nail tail, a nail cap, a nail body and a nail head, wherein the nail tail, the nail cap, the nail body and the nail head are integrally formed, the nail tail is of a cubic column structure, the cross section is square, the nail cap is of a cylindrical structure, the nail body is divided into two parts of an external thread cylinder, the nail head is of a triangular structure, the cubic column of the nail tail is 4mm to 6mm long, the side length of the square cross section is 1.8mm to 2.2mm, the nail cap is of a cylindrical structure, the diameter is 4mm to 6mm, the thickness is 1mm to 1.5mm, the effective thread length of the external thread is 40mm to 60mm, the minor diameter of the thread is 1.5mm to 2mm, the nail head is of a triangular structure, the angle between a triangular surface and OX angle is 15 DEG to 30 DEG, the threaded nail is made of 17-4PH materials, but not limited to the HRC is not less than 42 after heat treatment, the self-centering drill bit is passivated, prevent corrosion after the high temperature steam sterilization, the device has solved the complicated problem of cutting bone module location among the current bone surgery.
Description
Technical Field
The utility model belongs to the technical direction of medical instruments, and particularly relates to a medical instrument fixing threaded nail.
Background
In the orthopedic operations such as total knee joint replacement, total hip joint replacement and the like, the positioning of the osteotomy module is realized by a combination mode of a common light nail and a medical hammer, the fixation of the osteotomy module is realized by using a special handle, and the repeated operation of the operation is invisibly increased, so that the pain of a patient is increased. This phenomenon is a problem that those skilled in the art are urgently required to solve.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems in the prior art by aiming at the fixing threaded nail of the medical apparatus and the medical instrument.
In order to solve the technical problems, the utility model provides the following technical scheme: the medical instrument fixing threaded nail comprises a nail tail, a nail cap, a nail body and a nail head, wherein the nail tail, the nail cap, the nail body and the nail head are integrally formed, the nail tail is of a cubic column structure, the cross section of the nail tail is square, the nail cap is of a cylindrical structure, the nail body is divided into an external thread and a cylinder, and the nail head is of a triangular structure.
The utility model further discloses that the nail-tail cubic column is 4mm to 6mm long, and the side length of a square of the cross section is 1.8mm to 2.2 mm.
The utility model further discloses that the nail cap is of a cylindrical structure, the diameter of the nail cap is 4mm to 6mm, and the thickness of the nail cap is 1mm to 1.5 mm.
The utility model further provides that the effective thread length of the external thread is 40mm to 60mm, and the minor diameter of the thread is 1.5mm to 2 mm.
The utility model further discloses that the nail head is of a triangular structure, and the angle between the triangular surface and the OX is 15-30 degrees.
The utility model further illustrates that the screw nail is made of 17-4PH materials, and HRC is more than or equal to 42 after heat treatment.
Compared with the prior art, the utility model has the following beneficial effects: according to the utility model, an integrated design is adopted, the diameter of the screw nail can be customized according to the required medical instrument when the screw nail is used, the common diameter is 3mm to 6mm, the screw nail tail of the screw nail is firstly assembled with the interface of the pistol drill when the screw nail is installed, then the screw nail penetrates through the through hole of the instrument, finally the pistol drill is started, the screw nail is screwed into the bone at the moment, the screw nail is stopped until the screw nail cap presses the surface of the instrument, the screw nail is integrated, the production efficiency is high, through the steps, the positioning function of the smooth nail and the fixing function of the handle are integrated, the pistol drill is used for replacing a medical hammer to drive the screw nail, the operation efficiency is improved, the length of the screw nail tail is short, and the risk of mutual interference of the operation instrument is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic view of the assembly of a threaded nail and a pistol drill according to the present invention;
FIG. 2 is a schematic view of the threaded nail and instrument assembly of the present invention;
in the figure: 1. nailing tail; 2. a nail cap; 3. a nail body; 31. an external thread; 32. a cylinder; 4. and (4) a nail head.
Detailed Description
The present invention will be described in further non-limiting detail with reference to the following preferred embodiments and accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. 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.
Referring to fig. 1-2, the present invention provides the following technical solutions: a medical instrument fixing threaded nail comprises a nail tail 1, a nail head 2, a nail body 3 and a nail head 4, wherein the nail tail 1, the nail head 2, the nail body 3 and the nail head 4 are integrally formed, the nail tail 1 is of a cubic column structure, the cross section of the nail tail 1 is square, the nail head 2 is of a cylindrical structure, the nail body 3 is divided into two parts of an external thread 31 cylinder 32, the nail head 4 is of a triangular structure, the diameter of the threaded nail can be customized according to a required medical instrument when in use, the common diameter is 3mm to 6mm, during installation, the nail tail 1 of the threaded nail is firstly assembled with a connector of a pistol drill, the threaded nail penetrates through a through hole of the instrument, finally the pistol drill is started, the threaded nail is screwed into bone until the threaded nail head 2 presses the surface of the instrument, the threaded nail is integrally designed, the production efficiency is high, through the steps, the positioning function of a smooth nail and the fixing function of a handle are integrated, the pistol drill is used for replacing a medical hammer to drive the threaded nail, the operation efficiency is improved, the length of the nail tail 1 is shorter, and the risk of mutual interference of operation instruments is reduced;
the length of the nail tail 1 cubic column is 4mm to 6mm, the side length of the square of the cross section is 1.8mm to 2.2mm, the nail tail is convenient to be connected with a pistol drill interface, the structure is simple, the installation is convenient, and the operation efficiency is effectively improved;
the nail cap 2 is of a cylindrical structure, the diameter is 4mm to 6mm, and the thickness is 1mm to 1.5 mm;
the effective thread length of the external thread 31 is 40mm to 60mm, and the minor diameter of the thread is 1.5mm to 2 mm;
the nail head 4 is of a triangular structure, the angle between the triangular surface and the OX ranges from 15 degrees to 30 degrees, so that the screw nail is easy to self-tapping and enter the bone, and the fastening effect is good;
the screw nail is made of a 17-4PH material, the HRC after heat treatment is not less than 42, the material has high compressive strength, strong corrosion fatigue resistance and water drop resistance, high hardness and difficult deformation, and the drill bit is passivated before use to prevent the drill bit from being rusted after high-temperature steam sterilization, so that the service life is long.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions may be made in some technical features thereof, without departing from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. Fixed screw thread nail of medical instrument, including nail tail (1), head of a nail (2), nail body (3) and pin fin (4), its characterized in that: the nail tail (1), the nail cap (2), the nail body (3) and the nail head (4) are integrally formed, the nail tail (1) is of a cubic column structure, the cross section of the nail tail is square, the nail cap (2) is of a cylindrical structure, the nail body (3) is divided into an external thread (31) and a cylinder (32), and the nail head (4) is of a triangular structure.
2. The medical instrument fixing threaded nail according to claim 1, wherein: the length of the nail tail (1) cubic column is 4mm to 6mm, and the side length of a square of the cross section is 1.8mm to 2.2 mm.
3. The medical instrument fixing threaded nail according to claim 2, wherein: the nail cap (2) is of a cylindrical structure, the diameter of the nail cap is 4mm to 6mm, and the thickness of the nail cap is 1mm to 1.5 mm.
4. The medical instrument fixing threaded nail according to claim 3, wherein: the effective thread length of the external thread (31) is 40mm to 60mm, and the minor diameter of the thread is 1.5mm to 2 mm.
5. The medical instrument fixing threaded nail according to claim 4, wherein: the nail head (4) is of a triangular structure, and the angle between the triangular surface and the OX is 15-30 degrees.
6. The medical instrument fixing threaded nail according to claim 5, wherein: the threaded nail is made of 17-4PH material, and HRC is more than or equal to 42 after heat treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122968651.8U CN216797802U (en) | 2021-11-30 | 2021-11-30 | Medical instrument fixing threaded nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122968651.8U CN216797802U (en) | 2021-11-30 | 2021-11-30 | Medical instrument fixing threaded nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216797802U true CN216797802U (en) | 2022-06-24 |
Family
ID=82052500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122968651.8U Active CN216797802U (en) | 2021-11-30 | 2021-11-30 | Medical instrument fixing threaded nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216797802U (en) |
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2021
- 2021-11-30 CN CN202122968651.8U patent/CN216797802U/en active Active
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