CN115337203A - Acupuncture needle with insulating coating and preparation method thereof - Google Patents

Abstract

The invention provides an acupuncture needle with an insulating coating and a preparation method thereof, and relates to the technical field of medical instruments. This acupuncture needle with insulating coating, including holding the mechanism, the fixed needle body mechanism that is provided with of the inside center department embedding of holding the mechanism, holding the mechanism and including the grab handle, grab handle upper end fixedly connected with threaded rod, needle body mechanism includes the stainless steel needle body, the external fixed surface of stainless steel needle body is provided with the insulating layer, the fixed medicine membrane that is provided with of insulating layer. Be provided with the insulating layer through the surface at the acupuncture needle, can prevent that the needle body from rustting, promote the life of acupuncture needle, simultaneously, this acupuncture needle is when using as the electricity needle, and the setting of insulating layer can let the current of external input from the needle handle department that never sets up the insulating layer directly not set up the needle point department of insulating layer and get into the human body, reduces the midway loss of electric current, makes the electric current can directly amazing acupuncture point or suffer from a depth, strengthens the acupuncture effect of this acupuncture needle.

Description

An acupuncture needle with insulating coating and its preparation method

technical field

The invention relates to the technical field of medical devices, in particular to an acupuncture needle with an insulating coating and a preparation method thereof.

Background technique

Acupuncture is a traditional Chinese medicine therapy in which needles are inserted into the patient's body at a certain angle, and acupuncture techniques are used to stimulate specific parts of the human body to achieve the effect of treating diseases. The needles used in acupuncture treatment are generally They are called acupuncture needles. Acupuncture needles are usually made of metal materials and are slender overall. One end is provided with a needle point, which can be controlled by a doctor to penetrate into the subcutaneous points of the human body to achieve the purpose of treatment.

Existing acupuncture needles and their preparation methods are usually shaped by stretching and grinding the raw materials, which leads to the destruction of the metal oxide film on the surface of the existing acupuncture needles after processing, the surface of the acupuncture needles is not insulated, and the acupuncture effect and use are inconvenient. At the same time, after the oxidation film is destroyed, the surface of acupuncture needles is prone to rust, which affects the service life. The existing acupuncture needles need to be dipped in medicinal liquid for use, and the adhesion of medicinal liquid to the surface of acupuncture needles is poor, resulting in the effectiveness of acupuncture needles. and less practical.

Contents of the invention

(1) Solved technical problems

Aiming at the deficiencies of the prior art, the present invention provides an acupuncture needle with an insulating coating and a preparation method, which solves the problem of poor insulation of the acupuncture needles produced by the existing acupuncture needles and the preparation method, unstable release of drug effects, and difficulty in using them. The convenience and safety of the system are poor, and the overall effectiveness and practicability are not strong.

(2) Technical solutions

In order to achieve the above purpose, the present invention is achieved through the following technical solutions: an acupuncture needle with an insulating coating, including a holding mechanism, a needle body mechanism is embedded and fixed at the center of the holding mechanism, and the holding mechanism It includes a handle, the upper end of the handle is fixedly connected with a threaded rod, the needle body mechanism includes a stainless steel needle body, an insulating layer is fixedly arranged on the outer surface of the stainless steel needle, and a drug film is fixedly arranged on the insulating layer.

A method for preparing acupuncture needles with an insulating coating, specifically comprising the following steps:

S1. Needle preparation

Take a stainless steel metal tube of appropriate length, and wire-draw it to make the stainless steel tube form a filament of 0.25-0.35mm, cut off a filament of 9-12cm in length, and corrode one end of the filament into a needle by electrochemical method. shape, the stainless steel needle body is obtained;

S2. Needle cleaning

Pass the prepared stainless steel needle body through acetone solution, hydrochloric acid solution and sodium hydroxide solution in turn, then put it into an ultrasonic cleaning machine equipped with RO water for cleaning, and dry it for later use after cleaning;

S3. Needle body coating

Fix the stainless steel needle body in the coating mold, prepare the sol precursor of the coating material, inject the sol precursor into the mold through a syringe, repeat the cycle several times until the surface coating of the stainless steel needle body is even, and put Coating removal at the tip of the needle;

S4. Insulation layer firing

Putting the stainless steel needle body with coating on the surface into a muffle furnace for firing, so that the surface of the stainless steel needle body forms an insulating layer;

S5. Grip installation

Fix the handle and the mold of the threaded pipe to the upper 3cm of the stainless steel needle body, heat the ABS resin to melt, pour it into the mold, put the whole in a cooling box for cooling, and demould after cooling to room temperature;

S6. Drug film preparation

Take an appropriate amount of Salvia miltiorrhiza and saffron, add 5 times the amount of ethanol with a volume fraction of 80-95% to reflux for extraction 5 times, each time for 3 hours, combine the extracts, concentrate, and dry to obtain the extracts of Salvia miltiorrhiza and saffron;

S7. Membrane spraying

Take the 3% PLGA solution with a volume fraction of 2-3 times the amount of salvia miltiorrhiza and saffron extract, mix the extract and PLGA solution, stir and dissolve, and spray the mixed solution evenly on the surface of the stainless steel needle body by spraying, spray After completion, it is placed in a vacuum drying oven to dry for 15-20 hours to obtain the acupuncture needle.

Preferably, in said S1, the corrosion solution used in the electrochemical method is sodium chloride solution, the corrosion voltage is 15V, and the corrosion time is 8 minutes.

Preferably, the cleaning frequency of the ultrasonic cleaning machine in S2 is 28-40KHz, the power is 480-650W, and the cleaning time is 15-20min.

Preferably, in S3, the sol precursor of the coating material is a titania sol precursor or a silica sol precursor, and the insulating layer is a titania coating or a silica coating.

Preferably, in S4, the sintering temperature of the muffle furnace is 800-1000° C., and the sintering time is 60-80 min.

Preferably, in S5, the melting temperature of the ABS resin is 250-280°C.

Preferably, in the S6, the mass ratio of glycolide, lactide and chloroform in the PLGA solution is 1:1.5:100, the spray rate is 0.6-1m/s, and the spraying time is 25 minutes.

(3) Beneficial effects

The invention provides an acupuncture needle with insulating coating and a preparation method. Has the following beneficial effects:

1. The present invention provides an acupuncture needle with an insulating coating and its preparation method. Compared with the existing acupuncture needles and its preparation method, the acupuncture needle and its preparation method are provided with an insulating layer on the surface of the acupuncture needle, and the insulating layer It adopts titanium dioxide coating or silicon dioxide coating, both of which have a good adhesion effect on stainless steel, and are non-irritating to human skin and tissues. They have stable chemical properties and good insulation performance. They can also prevent the needle body from rusting and improve acupuncture and moxibustion. At the same time, when the acupuncture needle is used as an electric needle, the setting of the insulating layer can allow the current input from the outside to enter the human body from the needle handle without the insulating layer to the needle tip without the insulating layer, reducing the loss of current Loss in the middle, so that the current can directly stimulate the acupuncture point or the deep part of the affected part, and enhance the acupuncture effect of the acupuncture needle.

2. The present invention provides an acupuncture needle with an insulating coating and its preparation method. Compared with the existing acupuncture needle and its preparation method, the acupuncture needle and its preparation method are sprayed with the extracts of saffron and salvia miltiorrhiza on the surface of the needle body. The prepared medicinal film, saffron and salvia miltiorrhiza have the effect of promoting blood circulation and removing blood stasis. PLGA is used as the carrier of the active ingredients of the two, combined with the spray method to form a film layer containing the active ingredients of promoting blood circulation and removing blood stasis on the surface of acupuncture needles, which can make the traditional Chinese medicine The active ingredients in the needle are stably combined with the drug film on the surface of the needle body. After the acupuncture needle penetrates into the human body, the active ingredients of the two can be released quickly in the human body, and the penetration of the active ingredient can be increased, which improves the acupuncture needle and its preparation method. effectiveness and practicality.

3. The present invention provides an acupuncture needle with an insulating coating and its preparation method. Compared with the existing acupuncture needle and its preparation method, the acupuncture needle and its preparation method are provided with an ABS resin material at its tail end. The handle and threaded rod are convenient for the user to hold and connect the acupuncture needle to other devices for use. The ABS resin material also has good antibacterial properties and high hardness, which is conducive to satisfying the needs of doctors in the medical field. The daily use of acupuncture and moxibustion treatment needs to further enhance its convenience and safety in actual use.

Description of drawings

Fig. 1 is axonometric schematic diagram of the present invention;

Fig. 2 is the front sectional schematic diagram of the present invention;

Fig. 3 is a schematic top sectional view of the present invention.

Wherein, 1. holding mechanism; 2. needle body mechanism; 101, threaded rod; 102, handle; 201, drug film; 202, insulating layer; 203, stainless steel needle body.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example:

As shown in Figures 1-3, the embodiment of the present invention provides an acupuncture needle with an insulating coating, including a holding mechanism 1. A needle body mechanism 2 is embedded and fixed in the center of the holding mechanism 1. The holding mechanism 1 includes The handle 102 is beneficial for the user to hold and use the acupuncture needle. The upper end of the handle 102 is fixedly connected with a threaded rod 101, which is convenient for the user to connect the acupuncture needle to other equipment for use. The needle body mechanism 2 includes a stainless steel needle body 203, the outer surface of the stainless steel needle body 203 is fixedly provided with an insulating layer 202, which is conducive to improving the overall insulation and service life of the acupuncture needle, and the insulating layer 202 is fixedly provided with a medicinal film 201, which is conducive to enhancing the drug composition of the acupuncture needle in the human body The release efficiency of the needle improves the therapeutic effect of the acupuncture needle.

A method for preparing acupuncture needles with an insulating coating, specifically comprising the following steps:

S1. Needle preparation

Take a stainless steel metal tube of appropriate length, and wire-draw it to make the stainless steel tube form a filament of 0.25-0.35mm, cut off a filament of 9-12cm in length, and corrode one end of the filament into a needle by electrochemical method. shape, and the stainless steel needle body 203 is made, which is beneficial to ensure the strength of the raw material of the acupuncture needle, reduces the difficulty of processing and molding it, and improves the processing efficiency of the method;

S2. Needle cleaning

Pass the prepared stainless steel needle 203 through acetone solution, hydrochloric acid solution and sodium hydroxide solution in turn, and then put it into an ultrasonic cleaning machine equipped with RO water for cleaning. After cleaning, dry it for later use, which is beneficial to remove the stainless steel needle body. The residual impurities on the surface of 203 are conducive to the adhesion of subsequent coatings and the surface of stainless steel needle 203;

S3. Needle body coating

Fix the stainless steel needle body 203 in the coating mold, prepare the sol precursor of the coating film material, inject the sol precursor into the mold through a syringe, repeat the cycle several times until the surface coating of the stainless steel needle body 203 is uniform, and place the needle tip and The removal of the coating on the needle handle is beneficial to retain a certain conductivity for the acupuncture needle, so that it can be used as an electric needle;

S4. Insulation layer firing

Put the coated stainless steel needle body 203 into a muffle furnace for firing, so that the surface of the stainless steel needle body 203 forms an insulating layer 202, which is conducive to making the insulating layer 202 adhere and form;

S5. Grip installation

Fix the handle 102 and the mold of the threaded pipe 101 to the upper end 3cm of the stainless steel needle body 203, heat the ABS resin until it melts, pour it into the mold, put the whole in a cooling box for cooling, and demould after cooling to room temperature. Facilitate the fixed installation of the handle 102 and the threaded tube 101 of the acupuncture needle;

S6. Drug film preparation

Take an appropriate amount of Salvia miltiorrhiza and saffron, add 5 times the volume fraction of 80-95% ethanol to reflux and extract 5 times, each time for 3 hours, combine the extracts, concentrate, and dry to obtain the extracts of Salvia miltiorrhiza and saffron, which is beneficial to the maximum extent. Extract and retain the active ingredients in Salvia miltiorrhiza;

S7. Membrane spraying

Take the 3% PLGA solution with a volume fraction of 2-3 times the amount of salvia miltiorrhiza and saffron extract, mix the extract and PLGA solution, stir and dissolve, and spray the mixed solution evenly on the surface of the stainless steel needle body by spraying, spray After completion, place it in a vacuum drying oven to dry for 15-20 hours to obtain the acupuncture needle, which is conducive to evenly distributing the medicinal film 201 on the surface of the acupuncture needle and improving the release effect of the active ingredients of the medicine.

In S1, the corrosion solution used in the electrochemical method is sodium chloride solution, the corrosion voltage is 15V, and the corrosion time is 8 minutes, which is beneficial to ensure that the needle tip of the acupuncture needle can be formed at one time and improve the use effect of the acupuncture needle. In S2, ultrasonic cleaning The cleaning frequency of the machine is 28-40KHz, the power is 480-650W, and the cleaning time is 15-20min. The sol precursor is a titanium dioxide sol precursor or a silica sol precursor, and the insulating layer 202 is a titanium dioxide coating or a silicon dioxide coating, which is beneficial to ensure the insulation effect of the acupuncture needle and its adaptability to the human body. In S4, Ma The sintering temperature of the Fu furnace is 800-1000°C, and the sintering time is 60-80min, which is conducive to ensuring that the insulating layer 202 of the acupuncture needle can be quickly attached and formed. In S5, the melting temperature of ABS resin is 250-280°C, which is conducive to ensuring The installation and connection effect of ABS resin, in S6, the mass ratio of glycolide, lactide and chloroform in PLGA solution is 1:1.5:100, the spray rate is 0.6-1m/s, and the spraying time is 25min, which is beneficial to ensure that the saffron The active ingredients in Danshen and Danshen can fully adhere to the surface of the acupuncture needles to enhance its medical effect.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (8)

1. An acupuncture needle having an insulating coating, comprising a holding mechanism (1), characterized in that: the needle body mechanism (2) is fixedly arranged at the inner center of the holding mechanism (1) in an embedded mode, the holding mechanism (1) comprises a holding handle (102), a threaded rod (101) is fixedly connected to the upper end of the holding handle (102), the needle body mechanism (2) comprises a stainless steel needle body (203), an insulating layer (202) is fixedly arranged on the outer surface of the stainless steel needle body (203), and a medicine film (201) is fixedly arranged on the insulating layer (202).

2. A preparation method of an acupuncture needle with an insulating coating is characterized by comprising the following steps:

s1. Needle body preparation

Taking a stainless steel metal tube with a proper length, carrying out wire drawing treatment on the stainless steel metal tube to enable the stainless steel tube to form a 0.25-0.35mm filament, cutting out the filament with the length of 9-12cm, and processing one end of the filament into a needle shape through electrochemical corrosion to obtain the stainless steel needle body (203);

s2, cleaning the needle body

Sequentially passing the prepared stainless steel needle (203) body through an acetone solution, a hydrochloric acid solution and a sodium hydroxide solution, then putting the stainless steel needle into an ultrasonic cleaning machine filled with RO water for cleaning, and airing for later use after cleaning;

s3. Needle body coating film

Fixing the stainless steel needle body (203) in a coating mold, preparing a sol precursor of a coating material, injecting the sol precursor into the mold through an injector, repeatedly circulating for many times until the surface coating of the stainless steel needle body (203) is uniform, and removing the coatings of the needle point and the needle handle;

s4, firing the insulating layer

Placing the stainless steel needle body (203) with the coating on the surface into a muffle furnace for firing to form an insulating layer (202) on the surface of the stainless steel needle body (203);

s5, handle installation

Fixedly installing a mold of a grab handle (102) and a threaded pipe (101) at the position of 3cm above the upper end of the stainless steel needle body (203), heating ABS resin to be molten, pouring the ABS resin into the mold, putting the whole body into a cooling box for cooling, and demolding after cooling to room temperature;

s6. Preparation of medicine film

Taking a proper amount of salvia miltiorrhiza and saffron crocus, adding 80-95% ethanol with the volume fraction of 5 times, performing reflux extraction for 5 times, 3 hours each time, combining extracting solutions, concentrating and drying to obtain salvia miltiorrhiza and saffron crocus extracts;

s7, spraying the medicine film

Mixing the extract with PLGA solution with volume fraction of 3% and 2-3 times of Saviae Miltiorrhizae radix and stigma croci Sativi extract, stirring for dissolving, spraying the mixed solution onto the surface of stainless steel needle body by spray method, and drying in vacuum drying oven for 15-20 hr to obtain the final product.

3. The process for preparing an acupuncture needle having an insulative coating according to claim 2, wherein: in the S1, the corrosion solution used by the electrochemical method is a sodium chloride solution, the corrosion voltage is 15V, and the corrosion time is 8min.

4. The process for preparing an acupuncture needle having an insulating coating according to claim 2, wherein: and in S2, the cleaning frequency of the ultrasonic cleaning machine is 28-40KHz, the power is 480-650W, and the cleaning time is 15-20min.

5. The process for preparing an acupuncture needle having an insulative coating according to claim 2, wherein: in S3, the sol precursor of the coating material is a titanium dioxide sol precursor or a silicon dioxide sol precursor, and the insulating layer (202) is a titanium dioxide coating or a silicon dioxide coating.

6. The process for preparing an acupuncture needle having an insulating coating according to claim 2, wherein: in S4, the sintering temperature of the muffle furnace is 800-1000 ℃, and the sintering time is 60-80min.

7. The process for preparing an acupuncture needle having an insulating coating according to claim 2, wherein: in S5, the melting temperature of the ABS resin is 250-280 ℃.

8. The process for preparing an acupuncture needle having an insulating coating according to claim 2, wherein: in S6, the mass ratio of glycolide to lactide to chloroform in the PLGA solution is 1:1.5:100, the spraying speed is 0.6-1m/s, and the spraying time is 25min.

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