CN221205640U - Tungsten needle for minimally invasive surgery - Google Patents
Tungsten needle for minimally invasive surgery Download PDFInfo
- Publication number
- CN221205640U CN221205640U CN202322097485.8U CN202322097485U CN221205640U CN 221205640 U CN221205640 U CN 221205640U CN 202322097485 U CN202322097485 U CN 202322097485U CN 221205640 U CN221205640 U CN 221205640U
- Authority
- CN
- China
- Prior art keywords
- needle
- minimally invasive
- tungsten
- invasive surgery
- handle
- Prior art date
- 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.)
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Links
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 229910052721 tungsten Inorganic materials 0.000 title claims abstract description 30
- 239000010937 tungsten Substances 0.000 title claims abstract description 30
- 238000002324 minimally invasive surgery Methods 0.000 title claims abstract description 18
- 239000000956 alloy Substances 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 150000004767 nitrides Chemical class 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model discloses a tungsten needle for minimally invasive surgery, which relates to the technical field of surgical instruments and comprises a needle handle and a needle rod which can be detachably connected, wherein one end of the needle rod, which is away from the needle handle, is a needle point, and at least the outer circumferential surface of the needle point is provided with a reinforced wear-resistant layer. The tungsten needle for the minimally invasive surgery can improve the hardness and wear resistance of a needle point, and further improve the service life of the whole tungsten needle.
Description
Technical Field
The utility model relates to the technical field of surgical instruments, in particular to a tungsten needle for minimally invasive surgery.
Background
Various tools are needed in the process of performing minimally invasive surgery, and a minimally invasive tungsten needle is one of the common tools and is an electrosurgical instrument used for replacing a traditional mechanical surgical knife to cut tissues and coagulate blood; the anti-falling high-frequency tungsten needle electrotome provided by the patent CN205913396U is provided with a tungsten needle rod and a tungsten needle head, but in the long-time service process of the tungsten needle, particularly in the needle point part, the tungsten needle is possibly worn due to improper storage and other reasons, and the service life is influenced.
Disclosure of utility model
The utility model aims to provide a tungsten needle for minimally invasive surgery, which solves the problems in the prior art, can improve the hardness and wear resistance of a needle tip, and further prolongs the service life of the whole tungsten needle.
In order to achieve the above object, the present utility model provides the following solutions:
The utility model provides a tungsten needle for minimally invasive surgery, which comprises a needle handle and a needle rod which can be detachably connected, wherein one end of the needle rod, which is away from the needle handle, is provided with a needle point, and at least the outer circumferential surface of the needle point is provided with a reinforced wear-resistant layer.
Preferably, the reinforced wear layer is TiTaCrMoNb high-entropy alloy nitride coating.
Preferably, the end of the needle bar facing away from the needle tip extends into the needle handle and is in threaded connection with the needle handle.
Preferably, the outer circumferential surfaces of the needle bars are each provided with the reinforcing wear-resistant layer.
Compared with the prior art, the utility model has the following technical effects:
According to the minimally invasive surgery tungsten needle provided by the utility model, the needle handle and the needle rod can be detached and connected, the assembly and the disassembly are convenient, and the outer peripheral surface of the needle point part is provided with the reinforced wear-resistant layer, so that the needle point can be protected, the wear-resistant performance of the needle point part is improved, and the service life of the whole surgery tungsten needle is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic cross-sectional view of a tungsten needle for minimally invasive surgery according to a first embodiment.
Icon: 1-a tungsten needle for minimally invasive surgery; 11-needle handle; 12-needle bar; 13-needle tip; 14-reinforcing the wear-resistant layer.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model aims to provide a tungsten needle for minimally invasive surgery, which solves the problems in the prior art, can improve the hardness and wear resistance of a needle tip, and further prolongs the service life of the whole tungsten needle.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
Example 1
The embodiment provides a tungsten needle 1 for minimally invasive surgery, please refer to fig. 1, which comprises a needle handle 11 and a needle rod 12 which can be detachably connected, wherein one end of the needle rod 12, which is away from the needle handle 11, is provided with a needle tip 13, and at least the outer circumferential surface of the needle tip 13 is provided with a reinforced wear-resistant layer 14.
The needle handle 11 and the needle rod 12 can be detached and connected, so that the convenient installation and the detachment are realized, and the outer peripheral surface of the needle point 13 is provided with the reinforced wear-resistant layer 14, so that the needle point 13 can be protected, the strength and the wear-resistant performance of the needle point 13 are improved, and the service life of the whole tungsten surgical needle is prolonged.
Further, the reinforced wear-resistant layer 14 can be set to be TiTaCrMoNb high-entropy alloy nitride coating, the preparation method thereof can be seen from patent CN114941122 a-a high-hardness TiTaCrMoNbNx high-entropy alloy film for medical devices and the preparation method thereof, the hardness and elastic modulus properties can be regulated and controlled by controlling the N element ratio in TiTaCrMoNbNx high-entropy alloy nitride coating, as can be seen from fig. 7 in patent CN114941122a, the TiTaCrMoNbNx high-entropy alloy nitride coating is TiTaCrMoNb high-entropy alloy nitride coating when the flow rate ratio of argon to nitrogen is 25:0, i.e. when nitrogen is not introduced, the hardness and elastic modulus are respectively 19.6GPa and 265.7GPa, generally the hardness of tungsten is 3.4-4.2GPa, the elastic modulus is 45-60GPa, and the hardness and elastic modulus of the coating are obviously better than those of tungsten; specifically, the thickness of the reinforcing wear layer 14 is on the order of microns.
In the alternative provided in this embodiment, preferably, one end of the needle rod 12 facing away from the needle tip 13 extends into the needle handle 11 and is in threaded connection with the needle handle 11, so that the assembly and disassembly of the tungsten needle 1 for minimally invasive surgery are facilitated through threaded connection, and the preparation of the reinforced wear-resistant layer 14 is facilitated for the needle rod 12 alone.
In the alternative provided in this embodiment, preferably, the exposed outer peripheral surface of the needle shaft 12 is provided with the reinforced wear-resistant layer 14, that is, the portion of the needle shaft 12, excluding the connection with the needle handle 11, is provided with the reinforced wear-resistant layer 14, so as to improve the strength and wear resistance of the entire needle shaft 12.
The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.
Claims (4)
1. A tungsten needle for minimally invasive surgery, which is characterized in that: the novel needle comprises a needle handle (11) and a needle rod (12) which can be detachably connected, wherein one end, deviating from the needle handle (11), of the needle rod (12) is a needle point (13), and at least the outer circumferential surface of the needle point (13) is provided with a reinforced wear-resistant layer (14).
2. The tungsten needle for minimally invasive surgery of claim 1, wherein: the reinforced wear-resistant layer (14) is TiTaCrMoNb high-entropy alloy nitride coating.
3. The tungsten needle for minimally invasive surgery of claim 1, wherein: one end of the needle bar (12) which is away from the needle point (13) extends into the needle handle (11) and is in threaded connection with the needle handle (11).
4. The tungsten needle for minimally invasive surgery of claim 1, wherein: the exposed outer peripheral surfaces of the needle bars (12) are provided with the reinforced wear-resistant layers (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322097485.8U CN221205640U (en) | 2023-08-04 | 2023-08-04 | Tungsten needle for minimally invasive surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322097485.8U CN221205640U (en) | 2023-08-04 | 2023-08-04 | Tungsten needle for minimally invasive surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221205640U true CN221205640U (en) | 2024-06-25 |
Family
ID=91570209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322097485.8U Active CN221205640U (en) | 2023-08-04 | 2023-08-04 | Tungsten needle for minimally invasive surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221205640U (en) |
-
2023
- 2023-08-04 CN CN202322097485.8U patent/CN221205640U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |