CN220714002U

CN220714002U - Thoracic cavity puncture needle with one-way valve

Info

Publication number: CN220714002U
Application number: CN202321843531.8U
Authority: CN
Inventors: 余金罡
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-07-13
Filing date: 2023-07-13
Publication date: 2024-04-05
Anticipated expiration: 2033-07-13

Abstract

The utility model relates to the technical field of medical appliances, and provides a thoracic cavity puncture needle with a one-way valve. This thoracic puncture needle that possesses check valve through setting up sealed rubber ring, can prevent that drainage pipe and valve body from having the gap, hydrops or air flow back are internal, cause the result such as pneumothorax, through setting up valve body, metal spring and case, when extracting the hydrops, case right side atress, leave the gap with the valve body, make the hydrops can pass through, and elongate metal spring, prevent the case dislocation, when pulling out the syringe and discharging the hydrops, because negative pressure in the thorax leads to case left atress, metal spring withdraws simultaneously, check valve self-closing, the hydrops can not backward flow, and because the chest hydrops in the pipe can not backward flow, also be difficult for causing the infection like this, medical staff has accelerated puncture speed, work efficiency is improved, reduce medical malpractice.

Description

Thoracic cavity puncture needle with one-way valve

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a thoracic cavity puncture needle with a one-way valve.

Background

The thoracentesis needle is a medical instrument for thoracentesis, and the thoracentesis is a common medical operation for treating diseases such as hydrothorax, pneumothorax and the like. The conventional thoracentesis needles have problems in the process of puncturing, such as reverse flow of gas or liquid, risk of infection, low puncturing efficiency, complex operation steps and the like. In order to solve these problems, a thoracic puncture needle having a one-way valve has been developed.

According to the search of Chinese utility model publication number: CN215458476U discloses a thoracic puncture needle, the drainage tube of the present utility model is provided with a flow velocity regulator; the needle body at the front end of the puncture needle is provided with scales, the tail end of the puncture needle is provided with a needle seat, the needle seat is provided with external threads, and the external threads are connected with an adjustable fixing element and a reinforcing element in a threaded manner; the adjustable fixing element comprises a circular-plate-shaped connecting end and a cylindrical sleeve, the connecting end is fixed at the front end of the sleeve, and an inner thread is arranged on the inner wall of the sleeve; the reinforcing element is internally provided with an internal threaded hole; the internal thread hole of the reinforcing element and the internal thread of the sleeve are in threaded engagement with the external thread of the needle seat, and the reinforcing element is close to the tail end of the adjustable fixing element. The utility model can accurately adjust the needle inserting depth according to individual differences, confirm the needle inserting depth, can improve the problems of difficult grasping of the needle inserting depth, easy slipping of the puncture needle, easy changing of the needle inserting angle and the depth, easy pollution and the like, and can improve the efficiency while ensuring the needle inserting precision.

However, when implementing the above technical solution, the following problems exist: above technical scheme is when in actual use, needs to be through pressing from both sides the closure ware with the rubber tube clamp before the thorax is advanced the needle, and doctor's improper operation easily causes bad medical accident to at every turn extract the thorax hydrops or hydrops, all need to press from both sides the rubber tube clamp before extracting the syringe, influence the operating efficiency of thorax puncture, low annual information doctor forgets operating procedure easily, causes the result such as pneumothorax, and if pressing from both sides the closure ware and be not tight, cause the thorax to infect easily, influence patient's healing.

Disclosure of Invention

The utility model provides a thoracic cavity puncture needle with a one-way valve, which solves the problem that thoracic cavity infection is easy to cause and healing of a patient is affected.

The technical scheme of the utility model is as follows: the utility model provides a thoracic cavity pjncture needle that possesses check valve, includes syringe needle, valve body and syringe, the right side of syringe needle is provided with the needle seat, the right side of needle seat is provided with first pipe interface, the right side and the drainage pipe one end of first pipe interface are connected, the inside of drainage pipe is provided with the valve body, the inside of valve body is provided with metal spring, the left side of valve body is provided with the packing ring, the right side of valve body is provided with the case, the other end and the second pipe interface connection of drainage pipe, the right side of second pipe interface is provided with the syringe.

Preferably, the needle head is fixedly connected with the needle head seat, and the surface of the needle head seat is provided with a bulge.

Preferably, the needle seat is sleeved with the first catheter interface, and the second catheter interface is sleeved with the injector.

Preferably, the first catheter interface is fixedly connected with the drainage catheter, and the needle is connected with the syringe through the first catheter interface, the drainage catheter and the second catheter interface.

Preferably, the drainage catheter is sleeved with the valve body, and the inner dimension of the drainage catheter is matched with the outer dimension of the valve body.

Preferably, the valve body is fixedly connected with the metal spring, and the valve body is movably connected with the valve core through the metal spring.

Preferably, the drainage catheter is sleeved with the sealing rubber ring, the drainage catheter is tightly attached to the sealing rubber ring, and the valve body is adhered to the sealing rubber ring.

The working principle and the beneficial effects of the utility model are as follows:

this thoracic puncture needle that possesses check valve through setting up sealed rubber ring, can prevent that drainage pipe and valve body from having the gap, hydrops or air flow back are internal, cause the result such as pneumothorax, through setting up valve body, metal spring and case, when extracting the hydrops, case right side atress, leave the gap with the valve body, make the hydrops can pass through, and elongate metal spring, prevent the case dislocation, when pulling out the syringe and discharging the hydrops, because negative pressure in the thorax leads to case left atress, metal spring withdraws simultaneously, check valve self-closing, the hydrops can not backward flow, and because the chest hydrops in the pipe can not backward flow, also be difficult for causing the infection like this, medical staff has accelerated puncture speed, work efficiency is improved, reduce medical malpractice.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

FIG. 1 is a schematic view of the appearance structure of the present utility model;

FIG. 2 is an enlarged view of FIG. 1A in accordance with the present utility model;

FIG. 3 is a cross-sectional view of a drainage catheter of the present utility model;

FIG. 4 is a cross-sectional view of a valve body of the present utility model;

in the figure: 1. a needle; 2. needle seat; 3. a first catheter hub; 4. a drainage catheter; 5. a valve body; 6. a metal spring; 7. sealing rubber rings; 8. a valve core; 9. a second catheter hub; 10. a syringe.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill 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.

Referring to fig. 1-4, the utility model provides a thoracic cavity puncture needle with a one-way valve, which comprises the following steps: including syringe needle 1, valve body 5 and syringe 10, the right side of syringe needle 1 is provided with needle mount 2, and the right side of needle mount 2 is provided with first pipe interface 3, and the right side of first pipe interface 3 is connected with drainage pipe 4 one end, and the inside of drainage pipe 4 is provided with valve body 5, and the inside of valve body 5 is provided with metal spring 6, and the left side of valve body 5 is provided with sealed rubber ring 7, and the right side of valve body 5 is provided with case 8, and the other end and the second pipe interface 9 of drainage pipe 4 are connected, and the right side of second pipe interface 9 is provided with syringe 10.

When the thoracic cavity puncture needle with the one-way valve is used, the thoracic cavity puncture needle with the one-way valve is placed at a working position, after disinfection, the needle head seat 2 is held by hand, the needle head 1 is penetrated into a patient, when puncture is carried out, the bulge on the surface of the needle head seat 2 is lightened, then the discomfort of the patient is relieved, the piston shaft of the drawing syringe 10 is used, internal effusion can be drawn out through the needle head 1, the first catheter connector 3, the drainage catheter 4 and the second catheter connector 9, when effusion is drawn, the right side of the valve core 8 is stressed, a gap is reserved between the valve body 5, the effusion can pass through, the metal spring 6 is stretched, the valve core 8 is prevented from misplacement, when the syringe 10 is drawn out, the negative pressure in the thoracic cavity leads to the left side of the valve core 8 to be stressed, meanwhile, the metal spring 6 is automatically closed, the effusion can not flow back, the sealing rubber ring 7 can prevent the gap from being formed between the drainage catheter 4 and the valve body 5, the effusion or the air from flowing back into the body, the pneumothorax and other consequences can not flow back, and the infection can not be caused, the personnel can speed up the puncture, the working efficiency is improved, the working efficiency is reduced, the effusion can be rapidly drawn out after the injection 10 is fully drawn out, the liquid is drawn out, and the medical catheter is repeatedly drawn out after the catheter 10 is inserted into the connector 1, and the needle is drawn out after the needle is completely after the injection is completely drawn, and the step is finished.

Specifically, the needle 1 is fixedly connected with the needle seat 2, the surface of the needle seat 2 is provided with a bulge, and when the puncture is carried out, the bulge on the surface of the needle seat 2 can improve the friction force of the needle seat 2, so that the needle 1 can be more easily penetrated into a patient, and the discomfort of the patient is relieved.

Specifically, the needle seat 2 is sleeved with the first conduit interface 3, the second conduit interface 9 is sleeved with the syringe 10, when the syringe 10 is full of effusion, the effusion can be removed and discharged, and the steps are repeated after the second conduit interface 9 is inserted for extraction until the effusion is completely extracted.

Specifically, the first catheter interface 3 is fixedly connected with the drainage catheter 4, is fixedly connected with the second catheter interface 9 through the drainage catheter 4, is connected with the device through the drainage catheter 4, and the needle head 1 is connected with the syringe 10 through the first catheter interface 3, the drainage catheter 4 and the second catheter interface 9, and can draw out the internal effusion through the needle head 1, the first catheter interface 3, the drainage catheter 4 and the second catheter interface 9 by pulling the piston shaft of the syringe 10.

Specifically, the drainage catheter 4 is sleeved with the valve body 5, the inner dimension of the drainage catheter 4 is matched with the outer dimension of the valve body 5, and the valve body 5 is fixed in the drainage catheter 4, so that the effusion can flow unidirectionally through the valve body 5, backflow is prevented, and pneumothorax and other consequences are caused.

Specifically, valve body 5 and metal spring 6 are fixed connection, valve body 5 passes through metal spring 6 and valve core 8 constitution swing joint, when extracting the hydrops, valve core 8 right side atress, leave the gap with valve body 5, make the hydrops can pass through, and lengthen metal spring 6, prevent valve core 8 dislocation, when pulling out syringe 10 and discharging the hydrops, because negative pressure in the thorax leads to valve core 8 left side atress, metal spring 6 withdraws simultaneously, the check valve self-closing, the hydrops can not backward flow, and because the thorax hydrops in the pipe can not backward flow, also be difficult for causing the infection like this, medical staff has accelerated puncture speed, improve work efficiency, reduce the medical malpractice emergence.

Specifically, the drainage catheter 4 is sleeved with the sealing rubber ring 7, the drainage catheter 4 is tightly attached to the sealing rubber ring 7, the valve body 5 is adhered to the sealing rubber ring 7, and the sealing rubber ring 7 is arranged to prevent gaps between the drainage catheter 4 and the valve body 5, so that liquid accumulation or air backflow is prevented from returning to the body, and pneumothorax and other consequences are caused.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a thoracic puncture needle with check valve, includes syringe needle (1), valve body (5) and syringe (10), its characterized in that, the right side of syringe needle (1) is provided with syringe needle holder (2), the right side of syringe needle holder (2) is provided with first pipe interface (3), the right side and the drainage pipe (4) one end of first pipe interface (3) are connected, the inside of drainage pipe (4) is provided with valve body (5), the inside of valve body (5) is provided with metal spring (6), the left side of valve body (5) is provided with sealing rubber ring (7), the right side of valve body (5) is provided with case (8), the other end and the second pipe interface (9) of drainage pipe (4) are connected, the right side of second pipe interface (9) is provided with syringe (10).

2. The thoracic cavity puncture needle with the one-way valve according to claim 1, wherein the needle (1) is fixedly connected with the needle seat (2), and the surface of the needle seat (2) is provided with a bulge.

3. The thoracic puncture needle with the one-way valve according to claim 1, wherein the needle seat (2) is sleeved with the first catheter interface (3), and the second catheter interface (9) is sleeved with the injector (10).

4. The thoracic puncture needle with the one-way valve according to claim 1, wherein the first catheter interface (3) is fixedly connected with the drainage catheter (4), the second catheter interface (9) is fixedly connected with the drainage catheter (4), and the needle (1) is connected with the injector (10) through the first catheter interface (3), the drainage catheter (4) and the second catheter interface (9).

5. The thoracic puncture needle with the one-way valve according to claim 1, wherein the drainage catheter (4) is sleeved with the valve body (5), and the inner dimension of the drainage catheter (4) is matched with the outer dimension of the valve body (5).

6. The thoracic puncture needle with the one-way valve according to claim 1, wherein the valve body (5) is fixedly connected with the metal spring (6), and the valve body (5) is movably connected with the valve core (8) through the metal spring (6).

7. The thoracic puncture needle with the one-way valve according to claim 1, wherein the drainage catheter (4) is sleeved with the sealing rubber ring (7), the drainage catheter (4) is tightly attached to the sealing rubber ring (7), and the valve body (5) is adhered with the sealing rubber ring (7).