CN213466338U

CN213466338U - Guide needle for indwelling needle and external jugular vein indwelling needle using same

Info

Publication number: CN213466338U
Application number: CN202020490136.6U
Authority: CN
Inventors: 程孝惠; 武妍; 邢春根; 杨文红; 李颖
Original assignee: Second Affiliated Hospital of Soochow University
Current assignee: Second Affiliated Hospital of Soochow University
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2021-06-18
Anticipated expiration: 2030-04-07

Abstract

The utility model discloses a keep somewhere guide needle for needle, include needle body, needle file, hold needle handle and gasbag, the needle body includes syringe needle and backshank, and the backshank is fixed on the needle file, holds the needle handle and is connected with the needle file, and the gasbag setting is holding needle handle surface, and the backshank is through first pipe and gasbag intercommunication. The utility model also discloses a needle is kept somewhere to external jugular vein, including the guide needle, still include pipe, first Y shape and connect and separate the stopper, first Y shape connects including hollow first person in charge and hollow first branch pipe, and the first person in charge is equipped with and separates the stopper, and pipe connection is to the one end of first person in charge, and the needle body inserts first person in charge from the other end of first person in charge to pass in proper order and separate stopper and pipe, this end detachably holding of first person in charge is in well cavity. The air bag is pressed before puncture, and the air bag is released when the needle is withdrawn, so that negative pressure can be generated in a catheter of the indwelling needle, blood backflow is promoted, and medical care is helped to quickly and accurately judge whether the indwelling needle and a blood vessel of a patient establish a smooth channel.

Description

Guide needle for indwelling needle and external jugular vein indwelling needle using same

Technical Field

The utility model relates to the field of medical consumables, in particular to a guide needle for an indwelling needle and an external jugular vein indwelling needle using the same.

Background

The venous indwelling needle is also called as venous trocar. The core components include a flexible catheter/cannula that can be indwelling in a blood vessel, and a stainless steel puncture guiding stylet. When in use, the catheter and the needle core are punctured into a blood vessel together, after the catheter completely enters the blood vessel, the needle core is withdrawn, and only the soft catheter is left in the blood vessel so as to carry out infusion treatment. After puncturing with a conventional indwelling needle, blood return may not be visible for such or other reasons (e.g., a patient has a high blood viscosity), and a medical worker may not be able to determine whether the indwelling needle has been successfully punctured.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned defect of prior art, according to the utility model discloses an aspect provides a keep somewhere guide needle for needle, including needle body, needle file, hold needle handle and gasbag, the needle body includes syringe needle and backshank, and the backshank is fixed on the needle file, holds the needle handle and is connected with the needle file, and the gasbag setting is holding needle handle surface, and the backshank is through first pipe and gasbag intercommunication.

In some embodiments, the needle holder has a hollow cavity with an open end at one end and a needle tail extending into the hollow cavity with the open end facing the needle.

In some embodiments, the needle holder comprises a tube body part and a connecting part arranged at one end of the tube body part, the inner cavity of the tube body part forms a hollow cavity, and the needle tail is embedded into the connecting part.

In some embodiments, the needle holding handle comprises an extension part and a holding part, the extension part is arranged on the side surface of the needle base and extends towards the needle head direction along the axial direction of the needle base, the holding part is arranged at the end part of the extension part, and the air bag is arranged on the surface of the holding part.

In some embodiments, the needle handle is integral with the needle hub.

In some embodiments, the balloon is welded or bonded to the surface of the needle holder shaft with a strong adhesive.

In certain embodiments, the first conduit is also connected to the connection. The first guide pipe is prevented from falling off.

According to the utility model discloses a first Y shape connects and separates the stopper including the guide needle, and first Y shape connects including hollow first person in charge and hollow first branch pipe, is equipped with in the first person in charge and separates the stopper, and pipe connection is to the one end of first person in charge, and the needle body inserts first person in charge from the other end of first person in charge to pass in proper order and separate stopper and pipe, this end detachably holding of first person in charge is in well cavity.

In some embodiments, the device further comprises a second Y-shaped joint, a second conduit and a flow stopping clip, the second Y-shaped joint comprises a hollow second main pipe and a hollow second branch pipe, one end of the second main pipe is connected with the first branch pipe through the second conduit, the other end of the second main pipe is provided with a positive pressure valve, the end of the second branch pipe is provided with a sealing cap, and the flow stopping clip is arranged on the second conduit.

In certain embodiments, the end sidewall of the conduit is provided with at least one aperture.

The utility model provides a keep somewhere needle with guide needle and use its external jugular vein keep somewhere needle beneficial effect is: the air bag is pressed before puncture, and the air bag is released when the needle is withdrawn, so that negative pressure can be generated in a catheter of the indwelling needle, blood backflow is promoted, and medical care is helped to quickly and accurately judge whether the indwelling needle and a blood vessel of a patient establish a smooth channel.

Drawings

Fig. 1 is a schematic view showing a structure of a guide needle for an indwelling needle according to an embodiment of the present invention.

Fig. 2 is a schematic view of an external jugular vein indwelling needle (with a hidden guide needle) according to an embodiment of the present invention.

Fig. 3 is a schematic view of an external jugular vein indwelling needle according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

According to an aspect of the present invention, there is provided a guide needle for indwelling needle, please refer to fig. 1, including a needle body 1, a needle base 2, a needle holding handle 3 and an air bag 4, wherein the needle body 1 includes a needle head 5 and a needle tail 6, the needle tail 6 is fixed on the needle base 2, the needle holding handle 3 is connected with the needle base 2, the air bag 4 is disposed on the surface of the needle holding handle 3, and the needle tail 6 is communicated with the air bag 4 through a first catheter 7. The needle body 1 is a hollow structure, and generally speaking, the needle body 1 can be a medical stainless steel needle body. The airbag 4 has elasticity, and the airbag 4 can be restored to its original shape after being deformed.

In some embodiments, referring to fig. 1, the needle holder 2 has a hollow cavity 8, one end of the hollow cavity 8 is an open end 9, the needle tail 6 extends into the hollow cavity 8, and the open end 9 faces the needle 5.

In some embodiments, referring to fig. 1, the needle holder 2 includes a body 11 and a connecting portion 12 disposed at one end of the body 11, the hollow cavity 8 is formed in the inner cavity of the body 11, and the needle tail 6 is embedded in the connecting portion 12. Preferably, the body portion 11 is of a cylindrical tubular configuration.

In some embodiments, referring to fig. 1, the needle holder 3 includes an extension portion 13 and a handle portion 14, the extension portion 13 is disposed on the side of the needle holder 2 and extends toward the needle 5 along the axial direction of the needle holder 2, the handle portion 14 is disposed at the end of the extension portion 13, and the air bag 4 is disposed on the surface of the handle portion 14. In operation, the medical care personnel pinches the hand-held portion 14 and presses the thumb on the air bag 4.

In some embodiments, the needle holder 3 is provided integrally with the needle hub 2.

In some embodiments, balloon 4 is welded or bonded to the surface of needle holder shaft 3 with a strong adhesive.

In certain embodiments, the first conduit 7 is also connected to the connection 12. For example, strong glue may be used, or welding torch or ultrasonic sealing may be used.

According to another aspect of the present invention, please refer to fig. 2 and fig. 3, there is further provided an external jugular vein indwelling needle, comprising a guiding needle, further comprising a catheter 15, a first Y-shaped connector 25 and a septum 18, wherein the first Y-shaped connector 25 comprises a hollow first main tube 16 and a hollow first branch tube 17, the septum 18 is disposed in the first main tube 16, the catheter 15 is connected to one end of the first main tube 16, the needle body 1 is inserted into the first main tube 16 from the other end of the first main tube 16 and sequentially passes through the septum 18 and the catheter 15, and the end of the first main tube 16 is detachably accommodated in the hollow cavity 8. The catheter 15 is a flexible tube, which is placed in a blood vessel in use, and is used for delivering a drug solution to the blood vessel or for drawing blood. The end of the first main tube 16 is inserted into the hollow cavity 8 from the open end 9, preferably, the first main tube 16 is detachably connected with the hollow cavity 8, for example, the first main tube 16 is clamped with the hollow cavity 8, and a proper clamping force can be selected to ensure that the first main tube 16 does not loosen and fall off during the process of inserting the guide needle and the catheter 15 into the blood vessel of the patient, and after the puncture is finished, an operator can easily separate the needle holder 2 from the first main tube 16, so as to extract the guide needle, and the catheter 15 is left in the blood vessel.

When the external jugular vein indwelling needle of the embodiment is used, the operator holds the hand-held part 14, presses the air bag 4 with the thumb to deflate the air bag 4, and pierces the needle body 1 and the catheter 15 into the blood vessel of the patient, and in the process of withdrawing the guide needle, the operator releases the air bag 4, the air bag 4 is restored to the original state, so that negative pressure is generated in the air bag 4, the needle body 1 and the catheter 15, and the returned blood flows into the catheter 15 and the first Y-joint 25, which indicates that the indwelling needle establishes a smooth passage with the blood vessel of the patient.

In some embodiments, referring to fig. 2, the system further includes a second Y-shaped joint 26, a second conduit 23, and a flow stopping clip 24, the second Y-shaped joint 26 includes a hollow second main pipe 19 and a hollow second branch pipe 20, one end of the second main pipe 19 is connected to the first branch pipe 17 through the second conduit 23, the other end of the second main pipe 19 is provided with a positive pressure valve 21, an end of the second branch pipe 20 is provided with a sealing cap 22, and the flow stopping clip 24 is disposed on the second conduit 23.

In some embodiments, referring to FIG. 2, the end wall of the conduit 15 is provided with at least one aperture 27. When the end of the catheter 15 is occluded, the medical fluid may also enter the blood vessel from the small hole 27.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. The guide needle for the indwelling needle is characterized by comprising a needle body, a needle seat, a needle holding handle and an air bag, wherein the needle body is of a hollow structure, the needle body comprises a needle head and a needle tail, the needle tail is fixed on the needle seat, the needle holding handle is connected with the needle seat, the air bag is arranged on the surface of the needle holding handle, and the needle tail is communicated with the air bag through a first catheter.

2. The introducer needle for an indwelling needle according to claim 1, wherein the needle holder has a hollow cavity, one end of the hollow cavity is an open end, the needle tail extends into the hollow cavity, and the open end faces the needle head.

3. The introducer needle for an indwelling needle according to claim 2, wherein the needle holder includes a body portion and a connecting portion provided at one end of the body portion, the hollow cavity is formed in the inner cavity of the body portion, and the needle tail is inserted into the connecting portion.

4. The introducer needle for an indwelling needle according to claim 1, wherein the needle-holding handle includes an extending portion provided on a side surface of the needle holder and extending in the needle direction in the axial direction of the needle holder, and a hand-held portion provided at an end of the extending portion, the balloon being provided on a surface of the hand-held portion.

5. The introducer needle for an indwelling needle according to claim 1, wherein the needle holding handle is provided integrally with the needle holder.

6. The introducer needle for an indwelling needle according to claim 1, wherein the balloon is welded or bonded to the surface of the needle holder shaft with strong adhesive.

7. The introducer needle for an indwelling needle according to claim 1, wherein the first catheter is further connected to the connecting portion.

8. An external jugular vein indwelling needle, comprising the introducer needle according to claim 2, further comprising a catheter, a first Y-shaped connector and a septum, the first Y-shaped connector comprising a hollow first main tube and a hollow first branch tube, the septum being provided in the first main tube, the catheter being connected to one end of the first main tube, the needle body being inserted into the first main tube from the other end of the first main tube and sequentially passing through the septum and the catheter, the one end of the first main tube being detachably accommodated in the hollow chamber.

9. The external jugular vein indwelling needle of claim 8, further comprising a second Y-shaped joint, a second conduit and a flow stopping clip, wherein the second Y-shaped joint comprises a hollow second main pipe and a hollow second branch pipe, one end of the second main pipe is connected with the first branch pipe through the second conduit, the other end of the second main pipe is provided with a positive pressure valve, the end part of the second branch pipe is provided with a sealing cap, and the flow stopping clip is arranged on the second conduit.

10. The external jugular vein indwelling needle according to claim 8, wherein the end side wall of the catheter is provided with at least one small hole.