CN210204823U

CN210204823U - Hemostatic forceps coated with lubricating coating

Info

Publication number: CN210204823U
Application number: CN201920680323.8U
Authority: CN
Inventors: Hongtao Wang; 汪鸿涛; Genji Zhang; 张根吉; Wei Li; 李伟
Original assignee: Bill Anda Shanghai Lubricating Materials Co Ltd
Current assignee: Bill Anda Shanghai Lubricating Materials Co Ltd
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2020-03-31
Anticipated expiration: 2029-05-13

Abstract

The utility model relates to a coated lubricating coating's hemostatic forceps, include: the hemostatic forceps comprise a forceps head part and a forceps rod part which are of an integrated structure, and a Ni-P-PTFE self-lubricating coating is arranged on the outer surface of the hemostatic forceps, so that the minimum friction coefficient of the outer surface of the hemostatic forceps reaches 0.161. The Ni-P-PTFE self-lubricating coating is composed of a Ni-P layer and a Ni-P-PTFE layer, wherein the Ni-P layer is used as a transition layer, and the Ni-P-PTFE layer is used as a self-lubricating layer. The Ni-P layer is plated on the base body of the hemostatic forceps, and the Ni-P-PTFE layer is plated on the Ni-P layer. The utility model discloses a hemostatic forceps has set up the surface coating who has high lubrication and corrosion resistance, and it has higher lubricity and corrosion resistance, can greatly improve its quality of use and life-span in the use, does not have any harmful component, safety ring protects.

Description

Hemostatic forceps coated with lubricating coating

Technical Field

The utility model relates to a hemostatic forceps, in particular to a hemostatic forceps with a Ni-P-PTFE self-lubricating coating on the surface, belonging to the technical field of medical instruments.

Background

With the development of science and the continuous progress of society, people pay more and more attention to the development prospect in the medical field, and in various medical operations, the hemostatic forceps are all indispensable tools and are more widely used in operations with higher risks and difficulties. The new generation of medical hemostats also attracts more and more attention of medical workers, and due to the progress of the times and the development of the technology, more and more medical hemostats appear, and nowadays, the medical hemostats gradually become professional, so that the requirements on the medical hemostats are higher and higher.

When the medical hemostatic forceps work, the friction pair formed by the inner forceps and the outer forceps slides relatively, the friction factor between the inner forceps and the outer forceps is increased along with the increase of load, the degree of wear is also increased along with the increase of load, and finally the medical hemostatic forceps are failed, so that the surface treatment of the hemostatic forceps can pay attention to the working stability and the service life of the hemostatic forceps.

With the development of the material performance of the hemostatic forceps towards the direction of high lubrication and high corrosion resistance, the material performance of the hemostatic forceps is required to be higher and higher. Therefore, the self-lubricating coating is prepared between the forceps head and the inner and outer forceps of the medical hemostatic forceps, so that the tribology performance between the friction pairs of the hemostatic forceps can be effectively improved, and the service life of the medical hemostatic forceps can be prolonged. The treatment process method meets the requirement of sustainable development and has wide application prospect.

Disclosure of Invention

The utility model mainly solves the technical problem of providing a hemostatic forceps with a Ni-P-PTFE self-lubricating coating on the surface, which has high lubricity and better corrosion resistance so as to overcome the defects and the defects existing in the prior art.

The utility model discloses the technical problem that needs to solve can realize through following technical scheme:

a hemostatic forceps coated with a lubricious coating, comprising: head of a pincers portion and pincers pole portion, head of a pincers portion and pincers pole portion formula structure as an organic whole, its characterized in that: the external surface of the hemostatic forceps is provided with a Ni-P-PTFE self-lubricating coating, so that the minimum friction coefficient of the external surface of the hemostatic forceps reaches 0.161.

Further, the Ni-P-PTFE self-lubricating coating is composed of a Ni-P layer and a Ni-P-PTFE layer, the Ni-P layer serves as a transition layer, and the Ni-P-PTFE layer serves as a self-lubricating layer.

Further, the Ni-P layer is plated on the base body of the hemostatic forceps, and the Ni-P-PTFE layer is plated on the Ni-P layer.

The utility model has the advantages that: the utility model discloses a hemostatic forceps with Ni-P-PTFE self-lubricating coating on the surface, which has very high lubricity and high corrosion resistance, improves the stability of the hemostatic forceps in the use process and prolongs the service life of the hemostatic forceps.

The minimum friction coefficient of the Ni-P-PTFE coating can reach 0.161, and the Ni-P-PTFE coating shows excellent lubricating performance.

The coating adopts a reaction chemical plating preparation process and has the advantages of simple preparation process, high deposition speed, high production efficiency and low production cost.

Has no harmful components, is safe and environment-friendly.

Drawings

FIG. 1 is a schematic drawing of the components of a lubricous coated hemostatic forceps of the present invention;

FIG. 2 is a schematic view of the coating structure on the outer surface of the forceps;

in the figure: 1. the clamp comprises a clamp head part, 2 a clamp rod part, 3 a base body, 4 a Ni-P layer, 5 a Ni-P-PTFE layer and 10 a Ni-P-PTFE self-lubricating coating.

Detailed Description

The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more easily understand the advantages and features of the present invention, and to make the scope of the present invention more clear.

As shown in fig. 1, a hemostatic forceps coated with a lubricant coating includes: the forceps head part 1 and the forceps rod part 2 are of an integrated structure, and the outer surface of the hemostatic forceps is provided with a Ni-P-PTFE self-lubricating coating 10, so that the minimum friction coefficient of the outer surface of the hemostatic forceps reaches 0.161.

As shown in FIG. 2, the Ni-P-PTFE self-lubricating coating 10 is composed of a Ni-P layer 4 and a Ni-P-PTFE layer 5, wherein the Ni-P layer 4 is used as a transition layer, and the Ni-P-PTFE layer 5 is used as a self-lubricating layer. The Ni-P layer 4 is plated on the base body 3 of the hemostatic forceps, and the Ni-P-PTFE layer 5 is plated on the Ni-P layer 4.

The Ni-P-PTFE self-lubricating coating is prepared by adopting a chemical plating method, and the method comprises the following steps:

1) putting a medical hemostatic forceps matrix into acetone, setting the power to be 90w and the time to be 30min, and cleaning the matrix by adopting ultrasonic waves to organically remove oil on the matrix to obtain a clean matrix surface;

2) firstly, a chemical method is adopted to remove oil from a matrix, and the solution required by chemical oil removal contains NaOH and Na₂CO₃、Na₃PO₄In the solution, the concentration of NaOH is 60-80g/L, Na₂CO₃The concentration of (A) is 20-60g/L, Na₃PO₄The concentration of the base is 15-30g/L, the solution is heated to 70-80 ℃, then the base is added into the oil removing solution, the oil removing time is 10-15min, and thus the oil stains on the surface of the base are completely removed;

3) pickling and activating by using a hydrochloric acid solution, wherein the volume fraction of the hydrochloric acid solution is 40-60%, soaking the deoiled substrate in the hydrochloric acid solution for pickling and activating, wherein the solution temperature is normal temperature, and the soaking time is 3-5 min;

4) plating a layer of Ni-P on the substrate by chemical plating to be used as a transition layer; the PH value of the Ni-P plating solution is 4.8, the temperature of the Ni-P plating solution is 90 ℃, and the deposition time is 15 min;

5) plating a Ni-P-PTFE layer on the Ni-P layer by chemical plating to serve as a self-lubricating layer; the concentration of the chemical plating Ni-P-PTFE plating solution is 50ml/L, the PH value is 4.8, and the temperature of the Ni-P-PTFE plating solution is 80 ℃;

the hemostatic forceps with the lubricating coating of the utility model is plated with a Ni-P-PTFE self-lubricating coating on the outer surface of the hemostatic forceps, wherein a Ni-P layer is plated on the hemostatic forceps base body as a transition layer, and then a Ni-P-PTFE layer is plated on the Ni-P layer as a self-lubricating layer. The preparation method of the double-coating comprises the steps of firstly polishing the surface of a substrate, carrying out ultrasonic cleaning, carrying out appropriate pretreatment processes of chemical oil removal and acid cleaning activation on the hemostatic forceps substrate, controlling the deposition time of the Ni-P layer and the concentration of PTFE in N-P-PTFE plating solution, and finally obtaining the Ni-P-PTFE coating as a self-lubricating layer. Particularly, when the deposition time of the Ni-P layer of the transition layer is 15min and the concentration of PTFE in the Ni-P-PTFE plating solution is 50ml/L, the obtained Ni-P-PTFE self-lubricating coating has a more compact and uniform coating microstructure.

The friction coefficient of the finally obtained Ni-P-PTFE self-lubricating coating in the friction with the GCr15 steel ball is 0.161;

along with the development of the material performance of the hemostatic forceps towards the directions of high lubrication and high corrosion resistance, the material performance of the hemostatic forceps has higher and higher requirements: namely, the hemostatic forceps are required to have the performances of high lubrication, high corrosion resistance and the like, and if the coating on the surface of the hemostatic forceps has the performances of high lubrication and high corrosion resistance, the working stability of the hemostatic forceps can be ensured, and the service life of the hemostatic forceps can be prolonged.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A hemostatic forceps coated with a lubricious coating, comprising: head of a pincers portion and pincers pole portion, head of a pincers portion and pincers pole portion formula structure as an organic whole, its characterized in that: the external surface of the hemostatic forceps is provided with a Ni-P-PTFE self-lubricating coating, so that the minimum friction coefficient of the external surface of the hemostatic forceps reaches 0.161.

2. The lubricious coating coated hemostatic forceps of claim 1, further comprising: the Ni-P-PTFE self-lubricating coating is composed of a Ni-P layer and a Ni-P-PTFE layer, wherein the Ni-P layer is used as a transition layer, and the Ni-P-PTFE layer is used as a self-lubricating layer.

3. A lubricious coated hemostatic forceps as defined in claim 2, further comprising: the Ni-P layer is plated on the base body of the hemostatic forceps, and the Ni-P-PTFE layer is plated on the Ni-P layer.