CN115944368A

CN115944368A - Nerve block needle capable of being operated by one hand and use method thereof

Info

Publication number: CN115944368A
Application number: CN202310136092.5A
Authority: CN
Inventors: 古玲玲; 陈�峰; 瞿琬林; 何智扬
Original assignee: DUJIANGYAN PEOPLE S HOSPITAL
Current assignee: DUJIANGYAN PEOPLE S HOSPITAL
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-04-11

Abstract

The invention discloses a nerve blocking needle capable of being operated by one hand and a using method thereof, belongs to the technical field of medical equipment, and solves the problems that the conventional blocking needle needs two persons to cooperate to operate, so that the labor is wasted, and meanwhile, an operator and an assistant possibly have differences in the problems of medicine injection time, medicine injection quantity and the like, the cooperation is poor, the operation time is prolonged, and the blocking effect is influenced; the needle seat is of a hollow structure, a liquid inlet and a liquid outlet are arranged on two sides of the needle seat in a penetrating manner, one end of the needle body is communicated with the liquid outlet, one end of the infusion tube is communicated with the liquid inlet, and the other end of the infusion tube is communicated with an elastic liquid bag; a sealing plug matched with the liquid outlet is embedded in the inner cavity of the needle base in a sliding manner, and an opening and closing device for opening and closing the sealing plug is further arranged on the needle base. The device is simple to operate, and when the device is used, the needle seat is held by a single hand, so that the needle body can be fixed, and the liquid medicine injection can be controlled at any time, and the local anesthetic injection can be completed by a single person.

Description

Nerve block needle capable of being operated by one hand and use method thereof

Technical Field

The invention belongs to the technical field of medical equipment, and particularly relates to a nerve block needle capable of being operated by one hand and a using method thereof.

Background

Nerve block anesthesia: the local anesthetic is injected to the nerve trunk, nerve plexus or paraganglionic of trunk or limbs to temporarily block the conduction function of the nerve and generate anesthesia in the area dominated by the nerve trunk or nerve plexus or paraganglionic. The local nerve block has small influence on the respiration, circulation, central nervous system and the like of a patient, is widely applied to clinical anesthesia work, particularly for patients who have serious cardiovascular and cerebrovascular diseases and respiratory system diseases and need surgical operations, can meet the requirement of analgesia of the patient, is a common analgesia method for a pain department, and provides guarantee for quick recovery of postoperative patients.

The nerve blocking technology under ultrasonic guidance: the third eye of the anesthesiologist is treated by ultrasound, so that the influence on the health of a patient is small, accurate anatomical positioning can be provided, the improvement of a nerve blocking effect is guaranteed, and the occurrence probability of related complications is reduced.

Currently, a common practice of a nerve block technology under ultrasonic guidance is that an operator holds an ultrasonic probe with one hand and holds a nerve block needle with the other hand, and an assistant is responsible for drawing back blood (judging whether the blood vessel is mistakenly inserted or not) along with the display of an ultrasonic image that the block needle is close to the nerve to be blocked, and then injecting local anesthetic.

The nerve block needle is commonly used in clinic, and the nerve block needle (with different lengths) is connected with a medicine injection extension tube and a conducting wire and respectively connected with an injector and a nerve stimulator. (use of ultrasound guided technology without nerve stimulation)

In the current common implementation method, two persons are needed to cooperate to operate, which wastes manpower, and meanwhile, the operator and the assistant may have difference in the problems of medicine injection time, medicine injection amount and the like, the cooperation is not good enough, the operation time is prolonged, and the retardation effect is influenced.

Disclosure of Invention

In view of this, the present invention provides a nerve blocking needle capable of being operated with one hand, so as to solve the problems that the conventional blocking needle needs two persons to cooperate with each other, which wastes manpower, and meanwhile, the operative and assistant may have differences in the timing of injecting drugs, the amount of injected drugs, etc., and the cooperation is not good enough, which prolongs the operation time and affects the blocking effect.

The technical scheme adopted by the invention is as follows:

a nerve block needle capable of being operated by one hand comprises a needle seat, a needle body and a transfusion tube, wherein the needle seat is of a hollow structure, a liquid inlet and a liquid outlet are arranged on two sides of the needle seat in a penetrating manner, one end of the needle body is communicated with the liquid outlet, one end of the transfusion tube is communicated with the liquid inlet, and the other end of the transfusion tube is communicated with an elastic liquid bag;

the inner cavity of the needle base is embedded with a sealing plug matched with the liquid outlet in a sliding manner, and the needle base is also provided with an opening and closing device for opening and closing the sealing plug.

In the technical scheme, it is required to be noted that the length of the needle body is 75mm, the diameter of the needle body is 0.7mm, and the angle of the needle point is 25 degrees; the needle body is a 304 medical steel needle, and has better elasticity and toughness; when the scheme is operated specifically, medical care personnel firstly inject liquid medicine into the elastic liquid bag, then a handheld super-nerve probe and a handheld needle seat insert a needle body into a patient body, and display that a blocking needle is close to the vicinity of a nerve to be blocked according to an ultrasonic image; then through that hand start switching device of handheld needle file for the liquid outlet is opened, and elasticity liquid bag shrink this moment, and then for the anesthesia liquid medicine provides pressure, makes the anesthesia liquid medicine reach the internal target area of patient behind transfer line, needle file and the needle body in proper order. Therefore, the device is simple to operate, when in use, the needle seat is held by a single hand, the needle body can be fixed, and the liquid medicine injection can be controlled at any time, so that the local anesthetic injection can be completed by a single person.

Preferably, the opening and closing device comprises a transmission shaft, one end of the transmission shaft is connected with the side wall of the sealing plug, the other end of the transmission shaft penetrates out of the needle seat, and the transmission shaft is connected with the needle seat in a sliding mode.

Among this technical scheme, it is required to explain that switching device specifically is the transmission shaft, and medical personnel are through pressing the transmission shaft for the transmission shaft drives the sealing plug and removes, through the removal of sealing plug, and then reaches the purpose of control liquid outlet switching.

Preferably, the opening and closing device further comprises a spring sleeved on the transmission shaft, one end of the spring is connected with the sealing plug, and the other end of the spring is connected with the inner wall of the needle seat.

Among this technical scheme, need to explain, the spring through setting up is used for assisting the sealing plug to reset, and the sealing plug is in receiving external force to carry out the displacement back promptly, when no longer receiving external force, and the elasticity of accessible spring resets to seal the liquid outlet.

Preferably, one end of the transmission shaft, which is far away from the needle seat, is provided with a button, and the diameter of the button is larger than that of the transmission shaft.

In this technical scheme, need explain, can increase its area of contact with medical personnel's finger through the button that sets up, the medical personnel of being more convenient for control the switching of sealing plug.

Preferably, the elastic liquid storage bag is made of a silicon rubber material.

In this embodiment, the silicone rubber is a rubber in which a main chain is composed of silicon and oxygen atoms alternately, and two organic groups are usually bonded to the silicon atoms, and due to the characteristics of this material, the inner wall of the elastic liquid bag contracts with a constant contraction force regardless of the degree to which the elastic liquid bag expands, thereby achieving stable liquid discharge.

Preferably, a liquid inlet pipe communicated with the infusion tube is arranged on the side wall of the infusion tube, and a one-way valve is arranged in an inner cavity of the liquid inlet pipe.

In this technical scheme, need to explain, be used for injecting anesthesia liquid medicine into the elastic liquid bag through the feed liquor pipe that sets up, the setting of check valve can prevent the liquid medicine backward flow.

Preferably, the infusion tube is detachably connected with the needle seat.

In the technical scheme, it needs to be explained that the infusion tube and the needle seat are in threaded connection.

Preferably, the needle body and the needle seat are detachably connected.

In the technical scheme, the needle body and the needle seat are in threaded connection.

Preferably, the outer wall of the needle seat is provided with protective cloth, and the transmission shaft is covered by the protective cloth.

In the technical scheme, it should be noted that the protection cloth is mainly used for protecting the part of the transmission shaft exposed outside the needle seat, so as to prevent bacteria in the air from being brought into the needle seat in the contraction process of the transmission shaft, and further prevent the liquid medicine from being polluted.

A method of using a single-handed nerve block needle, comprising the steps of:

step 1: injecting the liquid medicine into the infusion tube through the liquid inlet tube, and injecting the liquid medicine into the elastic liquid bag after passing through the infusion tube so as to expand the elastic liquid bag;

and 2, step: the medical care personnel holds the super-nerve probe and the needle seat by hands, the needle body is inserted into the body of the patient, and the blocking needle is displayed to be close to the nerve to be blocked according to the ultrasonic image;

and step 3: medical personnel press the button, and the button drives the sealing plug and removes for the liquid outlet is opened, and the elasticity liquid bag contracts, and then for the anesthesia liquid medicine provides pressure, makes the anesthesia liquid medicine arrive the internal target area of patient after transfer line, needle file and needle body in proper order.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

when the ultrasonic nerve blocking device is specifically implemented, medical staff firstly injects liquid medicine into the elastic liquid bag, then a handheld super-nerve probe and a handheld needle seat insert a needle body into a patient body, and the blocking needle is displayed to be close to the nerve to be blocked according to ultrasonic images; then the hand through handheld needle file that starts closing device for the liquid outlet is opened, and elasticity liquid bag shrink this moment, and then for anesthesia liquid medicine provides pressure, makes anesthesia liquid medicine reach the internal target region of patient after passing through transfer line, needle file and needle body in proper order. Therefore, the device is simple to operate, when in use, the needle seat is held by a single hand, the needle body can be fixed, and the liquid medicine injection can be controlled at any time, so that the local anesthetic injection can be completed by a single person.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of the hub of the present invention after cutting;

fig. 3 is a schematic perspective view of the needle holder of the present invention after being cut open and the sealing plug opened;

FIG. 4 is a perspective view of the needle holder of FIG. 3;

reference numerals

10-needle seat, 11-liquid inlet, 12-liquid outlet, 20-needle body, 30-infusion tube, 40-elastic liquid bag, 50-liquid inlet tube, 51-one-way valve, 60-sealing plug, 61-transmission shaft, 62-spring and 63-button.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example 1

As shown in fig. 1-4, the embodiment of the present invention discloses a nerve block needle capable of being operated by one hand, which comprises a needle seat 10, a needle body 20 and a perfusion tube 30, wherein the needle seat 10 is of a hollow structure, a liquid inlet 11 and a liquid outlet 12 are arranged at two sides of the needle seat 10 in a penetrating manner, one end of the needle body 20 is communicated with the liquid outlet 12, one end of the perfusion tube 30 is communicated with the liquid inlet 11, and the other end of the perfusion tube 30 is communicated with an elastic liquid bag 40; a sealing plug 60 matched with the liquid outlet 12 is embedded in the inner cavity of the needle base 10 in a sliding manner, and an opening and closing device for opening and closing the sealing plug 60 is further arranged on the needle base 10. It should be noted that the length of the needle body 20 is 75mm, the diameter of the needle body 20 is 0.7mm, and the angle of the needle point is 25 degrees; the needle body 20 adopts a 304 medical steel needle, and has better elasticity and toughness; when the scheme is operated specifically, medical care personnel firstly inject liquid medicine into the elastic liquid bag 40, then hold the super-nerve probe with one hand and hold the needle seat 10 with the other hand, insert the needle body 20 into the body of a patient, and display that a blocking needle is close to the vicinity of a nerve to be blocked according to an ultrasonic image; then the hand through handheld needle file 10 starts switching device for liquid outlet 12 opens, and elasticity liquid bag 40 shrink this moment, and then for anesthesia liquid medicine provides pressure, makes anesthesia liquid medicine reach the internal target area of patient after passing through transfer line 30, needle file 10 and needle body 20 in proper order. Therefore, the device is simple to operate, when in use, the needle seat 10 is held by a single hand, the needle body 20 can be fixed, and the injection of the liquid medicine can be controlled at any time, so that the operation of injecting the local anesthetic can be completed by a single person.

As shown in fig. 4, in this embodiment, the opening and closing device includes a transmission shaft 61, one end of the transmission shaft 61 is connected to the sidewall of the sealing plug 60, the other end of the transmission shaft 61 penetrates out of the needle holder 10, and the transmission shaft 61 is slidably connected to the needle holder 10. It should be noted that, the opening and closing device is specifically a transmission shaft 61, and the medical staff drives the sealing plug 60 to move by pressing the transmission shaft 61, so as to achieve the purpose of controlling the opening and closing of the liquid outlet 12.

As shown in fig. 4, in this embodiment, the opening and closing device further includes a spring 62 sleeved on the transmission shaft 61, one end of the spring 62 is connected to the sealing plug 60, and the other end is connected to the inner wall of the needle holder 10. It should be noted that the spring 62 is provided to assist the sealing plug 60 to return, that is, after the sealing plug 60 is displaced by an external force, when the external force is no longer applied to the sealing plug 60, the sealing plug can return by the elastic force of the spring 62 to seal the liquid outlet 12.

As shown in fig. 4, in the present embodiment, one end of the transmission shaft 61 far away from the needle seat 10 is provided with a button 63, and the diameter of the button 63 is larger than that of the transmission shaft 61. It should be noted that the button 63 can increase the contact area between the finger and the medical staff, so that the medical staff can control the opening and closing of the sealing plug 60 more conveniently.

In this embodiment, wherein the elastic reservoir bag is made of a silicone rubber material. The silicone rubber has a main chain composed of silicon and oxygen atoms alternately, and two organic groups are usually bonded to the silicon atoms, and due to the characteristics of the material, the inner wall of the elastic liquid bag 40 contracts with a constant contraction force regardless of the degree to which the elastic liquid bag expands, thereby achieving stable liquid discharge.

In the present embodiment, as shown in fig. 2, a liquid inlet pipe 50 is provided on a side wall of the infusion tube 30 to communicate with the side wall, and a check valve 51 is provided in an inner cavity of the liquid inlet pipe 50. The liquid inlet pipe 50 is provided to inject the anesthetic liquid into the elastic liquid bag 40, and the check valve 51 is provided to prevent the liquid from flowing back.

In this embodiment, the infusion tube 30 and the needle holder 10 are detachably connected. The needle body 20 is detachably connected with the needle seat 10; it should be noted that infusion tube 30 and needle holder 10 are specifically threaded. The needle body 20 and the needle base 10 are in threaded connection.

In this embodiment, the outer wall of the needle seat is provided with a piece of protective cloth, and the transmission shaft is covered by the protective cloth. It should be noted that the protection cloth is mainly used for protecting the part of the transmission shaft exposed outside the needle seat, so as to prevent bacteria in the air from being brought into the needle seat in the contraction process of the transmission shaft, and further to prevent the liquid medicine from being polluted.

Example 2

This embodiment proposes a method for using a single-handed nerve block needle according to embodiment 1, including the steps of:

step 1: injecting the liquid medicine into the infusion tube 30 through the liquid inlet tube 50, and injecting the liquid medicine into the elastic liquid bag 40 after passing through the infusion tube 30 so as to expand the elastic liquid bag 40;

step 2: a medical care personnel holds the super-nerve probe by one hand, holds the needle seat 10 by one hand, inserts the needle body 20 into the body of a patient, and displays that the blocking needle is close to the nerve to be blocked according to the ultrasonic image;

and step 3: medical personnel press button 63, and button 63 drives sealing plug 60 and removes for liquid outlet 12 is opened, and elasticity liquid bag 40 contracts, and then provides pressure for the anesthesia liquid medicine, makes the anesthesia liquid medicine arrive the internal target region of patient after passing through transfer line 30, needle file 10 and needle body 20 in proper order.

It is fully within the purview of one skilled in the art to make the invention, including the circuits and electronic components and modules, known in the art, and without undue experimentation, the invention is not limited to software and process modifications.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The nerve block needle capable of being operated by one hand is characterized by comprising a needle seat (10), a needle body (20) and a transfusion tube (30), wherein the needle seat (10) is of a hollow structure, a liquid inlet (11) and a liquid outlet (12) are arranged on two sides of the needle seat (10) in a penetrating manner, one end of the needle body (20) is communicated with the liquid outlet (12), one end of the transfusion tube (30) is communicated with the liquid inlet (11), and the other end of the transfusion tube (30) is communicated with an elastic liquid bag (40);

a sealing plug (60) matched with the liquid outlet (12) is embedded in the inner cavity of the needle seat (10) in a sliding mode, and an opening and closing device used for opening and closing the sealing plug (60) is further arranged on the needle seat (10).

2. A single-handed nerve block needle according to claim 1, wherein the opening and closing device comprises a transmission shaft (61), one end of the transmission shaft (61) is connected with the side wall of the sealing plug (60), the other end of the transmission shaft (61) penetrates out of the needle holder (10), and the transmission shaft (61) is connected with the needle holder (10) in a sliding manner.

3. The nerve block needle capable of being operated by one hand according to claim 2, characterized in that the opening and closing device further comprises a spring (62) sleeved on the transmission shaft (61), one end of the spring (62) is connected with the sealing plug (60), and the other end is connected with the inner wall of the needle base (10).

4. A single-handed nerve block needle as claimed in claim 2, wherein the end of the drive shaft (61) remote from the needle hub (10) is provided with a button (63), and the diameter of the button (63) is larger than the diameter of the drive shaft (61).

5. A single-handed nerve block needle as claimed in claim 1, wherein the flexible reservoir is made of silicone rubber material.

6. The nerve block needle capable of being operated by one hand according to claim 1, wherein a liquid inlet pipe (50) communicated with the liquid inlet pipe is arranged on the side wall of the liquid conveying pipe (30), and a one-way valve (51) is arranged in the inner cavity of the liquid inlet pipe (50).

7. A single-handed nerve block needle as claimed in claim 1, wherein the infusion tube (30) and the needle hub (10) are removably connected.

8. A single-handed nerve block needle as claimed in claim 1, wherein the needle body (20) and the needle hub (10) are removably attached.

9. The nerve block needle capable of being operated by one hand according to claim 2, characterized in that a protective cloth (70) is arranged on the outer wall of the needle base, and the protective cloth covers the transmission shaft (61).

10. A method of using a single-handed nerve block needle as claimed in any one of claims 1 to 9, comprising the steps of:

step 1: the liquid medicine is injected into the infusion tube (30) through the liquid inlet tube (50), and the liquid medicine is injected into the elastic liquid bag (40) after passing through the infusion tube (30) so that the elastic liquid bag (40) is expanded;

and 2, step: a medical care personnel holds the super-nerve probe and a needle seat (10), inserts a needle body (20) into the body of a patient, and displays that a blocking needle is close to the nerve to be blocked according to an ultrasonic image;

and step 3: medical personnel press button (63), and button (63) drive sealing plug (60) and remove for liquid outlet (12) are opened, and elasticity liquid bag (40) shrink, and then for anesthesia liquid medicine provides pressure, make anesthesia liquid medicine reach the internal target zone of patient after transfer line (30), needle file (10) and needle body (20) in proper order.