CN212755836U

CN212755836U - Radio frequency puncture needle with scales and positioner

Info

Publication number: CN212755836U
Application number: CN202020872989.6U
Authority: CN
Inventors: 季锋; 周书转; 张永燕; 许华
Original assignee: Yueyang Hospital of Integrated Traditional Chinese and Western Medicine Shanghai University of TCM
Current assignee: Yueyang Hospital of Integrated Traditional Chinese and Western Medicine Shanghai University of TCM
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-03-23
Anticipated expiration: 2030-05-21

Abstract

The utility model relates to a take radio frequency pjncture needle of scale and locator, including annotating medicine interface, radio frequency pjncture needle and locator, the medicine interface of annotating fix the afterbody at the radio frequency pjncture needle, be equipped with airtight lid on the medicine interface of annotating, the radio frequency pjncture needle be the tubular structure, inside is the passageway of dosing, the radio frequency pjncture needle divide into insulating area and conducting region, the surface of insulating area be equipped with insulating coating, the last scale that is equipped with of insulating coating, the head of conducting region be round blunt type, the side is equipped with the side opening, the side opening communicates with each other with the passageway of dosing, the locator cover on the radio frequency pjncture needle, the locator can slide on; the utility model has the advantages that: the utility model discloses a head of radio frequency pjncture needle is round blunt type, can avoid damaging the neurovascular at the in-process of puncture, simultaneously through scale and locator on the radio frequency pjncture needle, and medical staff can more accurate control depth of puncture, avoids causing human tissue or viscera damage because of the puncture is too deep.

Description

Radio frequency puncture needle with scales and positioner

Technical Field

The utility model relates to a medical auxiliary article, in particular to a radio frequency puncture needle with scales and a locator.

Background

Radio frequency therapy is a common means of minimally invasive interventional therapy for pain at present, and the principle is as follows: after the radio frequency therapeutic apparatus sends out radio frequency current, the current forms a loop between the end of the working electrode (the affected part) and the dispersive electrode (other parts) through human tissues; after the current is conducted to the tissue, an ion flow which moves back and forth rapidly is formed in the tissue, and the friction and the impact (field effect) of the ion flow generate heat to generate a thermal effect in the tissue, so that the molecular structure and the physicochemical property of the pain-causing factor are changed, the compliance of nerve conduction and the permeability of a nerve cell membrane are further changed, and the therapeutic effect is finally generated. The radio frequency puncture needle is a puncture treatment needle which is matched with a radio frequency treatment instrument and applied to the radio frequency treatment technology of tissues such as nerves, muscles and the like.

Compared with a nerve destruction drug injection method with unpredictable drug diffusion and difficultly-controlled treatment range, many clinicians consider that radio frequency technology (including radio frequency ablation technology and radio frequency regulation and control technology) is safer, the radio frequency ablation damage area is smaller, the range is more definite, the radio frequency regulation and control can reduce pain and simultaneously preserve nerve functions as much as possible, and the radio frequency regulation and control technology is easy to master after professional training, so that the radio frequency treatment is widely applied to the treatment of various chronic pains in clinic, and remarkable curative effect is achieved.

The radio frequency needle is one of the essential tools in the radio frequency therapy and is a working channel of the radio frequency therapy. Therefore, a safe and convenient-to-operate radio frequency needle is a prerequisite for successful completion of radio frequency treatment. However, the radio frequency needle in clinical application at present has some defects: the needle point of the puncture needle for radio frequency therapy in clinical application is in an oblique mouth shape, is relatively sharp, is easy to puncture, but is easy to cause damage to nerves or blood vessels, and can cause serious complications; the insulating coating of the radio frequency needle applied clinically at present does not have scales, so that an operating doctor cannot know the puncture depth immediately during puncture and is difficult to control, the tissue or organ of a patient is easily damaged due to over-deep puncture, the working difficulty of the doctor is increased, the working time is prolonged, and great inconvenience is brought to clinical use and manufacture.

Chinese patent document CN201621336803 discloses a radio frequency needle, in which an inner needle capable of tissue ablation, nerve stimulation, energization and positioning is embedded in a hollow portion inside a needle body, the inner needle and the needle body are detachably connected, an insulating layer for preventing current from flowing to surrounding tissues is sprayed or plated on an outer surface of one end of the needle body, an active conductive region for penetrating tissues is disposed at the other end of the needle body, and the active conductive region is bent, or rounded, blunt or straight. The radio frequency needle solves the problems that the bent joint part can not be treated or the contact area is too small in the radio frequency ablation process. However, the radio frequency needle does not solve the problem that the puncture depth is difficult to control, and medical staff cannot accurately know the puncture depth in real time, so that the puncture depth is too deep, and the visceral organs of a patient are easily damaged.

In view of the above, there is a need for a radio frequency puncture needle that can help medical staff precisely control the puncture depth and avoid the injury of the patient tissue or organ caused by the over-deep puncture.

Disclosure of Invention

The utility model aims at providing a radio frequency puncture needle with scales and a locator.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a take radio frequency pjncture needle of scale and locator, includes injection interface, radio frequency pjncture needle and locator, its characterized in that, the injection interface fix the afterbody at the radio frequency pjncture needle, be equipped with airtight lid on the injection interface, the radio frequency pjncture needle be the tubular structure, the inside passageway of dosing of radio frequency pjncture needle, the radio frequency pjncture needle divide into insulating zone and conductive area, the surface of insulating zone be equipped with insulating coating, insulating coating on be equipped with the scale, the head of conductive area be round blunt type, the side of conductive area is equipped with the side opening, side opening and the passageway of dosing communicate with each other, locator cover on the radio frequency pjncture needle, the locator can slide on the radio frequency pjncture needle.

The medicine injection interface is made of plastic.

The radio frequency puncture needle is made of stainless steel.

The minimum measurement unit of the scale is millimeter.

The locator is cylindrical or round table-shaped, a through hole is arranged at the center, and the diameter of the through hole is matched with the diameter of the radio frequency puncture needle.

The positioner is made of rubber or plastic materials.

The utility model has the advantages that:

1. the insulating coating of the radio frequency puncture needle of the utility model is provided with scales, which can help medical staff to determine the puncture depth more conveniently and avoid the damage of the tissues or organs of a patient caused by over-deep puncture; the head of the radio frequency puncture needle is round and blunt, so that the nerve vessel injury of a patient can be avoided in the puncture process.

2. The utility model discloses a radio frequency pjncture needle is the tubular structure, and inside is the passageway of dosing, at the in-process of radio frequency treatment, if the patient can not bear the pain that the radio frequency melts and brings, medical staff can alleviate the misery of patient treatment in-process through a small amount of local anesthetic of injection mouth injection, need not other apparatus of reuse during, has alleviateed medical staff's operation burden. After the radio frequency treatment is finished, medical staff can also conveniently inject some treatment medicines to improve the curative effect.

Drawings

Fig. 1 is a schematic structural diagram of a radio frequency puncture needle with scales and a locator of the utility model.

Fig. 2 is a schematic cross-sectional view of a radio frequency puncture needle with scales and a locator according to the present invention.

FIG. 3 is a schematic view of the positioner.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

The reference numerals and components referred to in the drawings are as follows:

1. medicine injection interface 2. radio frequency puncture needle

21. Insulating region 22. conducting region

23. Drug delivery channel 24. insulating coating

25. Scale 26. side hole

3. Locator 31, through hole

Referring to fig. 1, fig. 2 and fig. 3, fig. 1 is a schematic structural view of a radio frequency puncture needle with scales and a locator according to the present invention, fig. 2 is a schematic sectional view of a radio frequency puncture needle with scales and a locator according to the present invention, and fig. 3 is a schematic structural view of a locator. The radio frequency puncture needle with the scales and the positioner comprises a medicine injection interface 1, a radio frequency puncture needle 2 and a positioner 3; the medicine injection interface 1 is fixed at the tail part of the radio frequency puncture needle 2, a closed cover (not shown) is arranged on the medicine injection interface 1, and the medicine injection interface 1 can be connected with a syringe or a prolonged catheter and other medicine delivery devices in operation. The radio frequency puncture needle 2 is of a tubular structure, a drug feeding channel 23 is arranged inside the radio frequency puncture needle 2, and the radio frequency puncture needle 2 is divided into an insulating area 21 and a conductive area 22. The insulating zone 21 on be equipped with insulating coating 24, can avoid the radio frequency treatment in-process unnecessary electric leakage and prevent to take place the electric burn, be equipped with scale 25 on the insulating coating 24, through scale 25, medical staff can more audio-visual understanding the degree of depth of puncture, avoid causing the damage of patient's tissue or internal organs because of puncturing too deeply. The head of the conductive region 22 is round blunt, which can avoid the damage to the nerve vessel of the patient in the puncture process, the side of the conductive region 22 is provided with a side hole 26, the side hole 26 is communicated with the drug delivery channel 23, if the patient can not bear the pain caused by the radiofrequency ablation in the radiofrequency treatment, the medical staff can inject a small amount of local anesthetic through the drug delivery channel 23, and the pain of the patient in the treatment process is relieved. The center of the positioner 3 is provided with a through hole 31, the positioner 3 is sleeved on the radio frequency puncture needle 2 through the through hole 31, and the positioner 3 can slide on the radio frequency puncture needle 2.

Preferably, the medicine injection interface 1 is made of plastic materials, the radio frequency puncture needle 2 is made of stainless steel, the minimum measurement unit of the scales 25 is millimeter, the positioner 3 is cylindrical or truncated cone-shaped, the diameter of the through hole 31 is matched with that of the radio frequency puncture needle 2, and the positioner 3 is made of rubber or plastic materials.

The utility model discloses a use method is:

for a patient needing radio frequency treatment, after the early preparation work of the radio frequency treatment is finished, local anesthesia is carried out on the puncture point of the patient, the positioner 3 is moved to the corresponding scale 25 of the insulating coating 24 on the radio frequency puncture needle 2 according to the pre-designed puncture depth, then the radio frequency puncture needle 2 is placed according to the designed needle inserting path, and as the head of the radio frequency puncture needle 2 is round and blunt, the skin is difficult to directly enter the skin, and the skin can be firstly punctured by the puncture needle and then placed. When the radio frequency puncture needle 2 punctures to the preset depth, the locator 3 touches the skin of the patient, and the radio frequency puncture needle 2 is blocked from continuously puncturing the body of the patient, so that the nerve vessel or the visceral organ of the patient is prevented from being damaged due to too deep puncture. In the process of radio frequency treatment, if a patient cannot bear pain caused by radio frequency ablation, medical staff can inject a small amount of local anesthetic through the medicine injection interface 1, and the local anesthetic is injected into the radio frequency ablation position of the patient from the side hole 26 of the conductive region 22 of the radio frequency puncture needle 2 through the medicine injection channel 23, so that the pain of the patient in the treatment process is relieved. After the radio frequency treatment is finished, medical staff can also inject some treatment medicines to improve the curative effect. After the treatment is finished, the radio frequency puncture needle 2 is pulled out, and the operation is finished by slightly applying pressure to the local part.

The head of the radio frequency puncture needle of the utility model adopts the design of the round blunt shape, which can avoid damaging the nerve vessel in the puncture process and simultaneously save the design of the needle core guide core; through the scale on the insulating coating, medical staff can be more audio-visual understanding the degree of depth of puncture, cooperation locator, medical staff can be more accurate control the degree of depth of puncture, avoid because of the puncture too deeply causes the damage of patient's tissue or internal organs, the effectual work degree of difficulty that reduces medical staff.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and additions can be made without departing from the method of the present invention, and these improvements and additions should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a take radio frequency pjncture needle of scale and locator, includes injection interface, radio frequency pjncture needle and locator, its characterized in that, the injection interface fix the afterbody at the radio frequency pjncture needle, be equipped with airtight lid on the injection interface, the radio frequency pjncture needle be the tubular structure, the inside passageway of dosing of radio frequency pjncture needle, the radio frequency pjncture needle divide into insulating zone and conductive area, the surface of insulating zone be equipped with insulating coating, insulating coating on be equipped with the scale, the head of conductive area be round blunt type, the side of conductive area is equipped with the side opening, side opening and the passageway of dosing communicate with each other, locator cover on the radio frequency pjncture needle, the locator can slide on the radio frequency pjncture needle.

2. The rf puncture needle according to claim 1, wherein the drug injection port is made of plastic.

3. The rf puncture needle according to claim 1, wherein the rf puncture needle is made of stainless steel.

4. The rf puncture needle of claim 1, wherein the scale is measured in millimeters at the smallest.

5. The rf puncture needle according to claim 1, wherein the retainer is cylindrical or truncated cone-shaped, and has a through hole at the center, and the diameter of the through hole is matched with that of the rf puncture needle.

6. The rf puncture needle according to claim 1, wherein the retainer is made of rubber or plastic.