CN213249565U

CN213249565U - Guide needle

Info

Publication number: CN213249565U
Application number: CN202021716294.5U
Authority: CN
Inventors: 陈友平; 胡伟
Original assignee: Jiangxi Oude Medical Equipment Co ltd
Current assignee: Jiangxi Oude Medical Equipment Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-05-25
Anticipated expiration: 2030-08-17

Abstract

The utility model discloses a guide needle belongs to the medical instrument field, the guide needle includes needle tubing subassembly and nook closing member, the needle tubing subassembly is passed to the one end of nook closing member, the other end of nook closing member is twisted with the one end of needle tubing subassembly mutually and is closed, the needle tubing subassembly includes needle pipe fitting and luer joint, the one end of needle pipe fitting with luer joint looks rigid coupling, the nook closing member includes nook closing member and round joint, the one end and the round joint looks rigid coupling of nook closing member, luer joint and needle pipe fitting can be passed in proper order to the one end of nook closing member, the other end accessible round joint of nook closing member is twisted with luer joint looks joint. The utility model discloses a guide needle adopts luer to connect and connects matched with connection structure with the circle, and easily operating personnel carries out the dismouting cooperation, grips reliable difficult slipping, guarantees that operating personnel realizes accurate reliable location operation, for exploring or puncture tissue and establish the passageway, reduces puncture many times and gives patient's misery, reduces the possibility that the needle was said and is shifted, improves patient experience and experiences.

Description

Guide needle

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a guide needle.

Background

The Chinese patent document publication No. CN209629774U discloses a guide needle for minimally invasive surgery puncture, which comprises a first mounting head and a second mounting head, wherein a first butt joint groove is formed in the second mounting head, a communicated pipe sleeve is fixedly mounted on one side of the first butt joint groove, the first butt joint groove is fixedly provided with the first mounting head through a fixing head, a telescopic needle tube penetrating through the pipe sleeve is fixedly mounted on the first mounting head, and a needle core is fixedly mounted on the telescopic needle tube through a needle head.

However, the above-mentioned guide needle for minimally invasive surgery puncture adopts first installation head and second installation head matched with buckle connection structure, is not convenient for medical care operating personnel to carry out the dismouting operation when the operation, and appears slipping easily and loosen the risk during the operation, is unfavorable for reliably fixing a position, and then prolongs the operation time, brings bad experience effect for the patient.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art's defect, the utility model aims to solve the technical problem that a guide needle is put forward adopts luer to connect and connects matched with connection structure with the circle, and easily operating personnel carries out the dismouting cooperation, and grips reliable not easy slipping, guarantees that operating personnel realizes accurate reliable location operation, for exploring or puncture the tissue and establish the guide passageway, reduces puncture for a lot of and gives patient's misery, reduces the possibility that the needle way shifts, improves patient experience and feels.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a pair of guide needle, including needle tubing subassembly and nook closing member, the needle tubing subassembly is passed to the one end of nook closing member, the other end of nook closing member is twisted with the one end of needle tubing subassembly mutually and is closed, the needle tubing subassembly includes needle pipe fitting and luer joint, the one end of needle pipe fitting and luer joint looks rigid coupling, the nook closing member includes needle chipware and round joint, the one end and the round joint looks rigid coupling of needle chipware, luer joint and needle tubing can be passed in proper order to the one end of needle chipware, the other end accessible circle of needle chipware is twisted with luer joint looks joint and is closed.

The utility model discloses preferred technical scheme lies in, luer connects including connecting body and a plurality of circles anti-skidding bead, anti-skidding bead with connect body integrated into one piece, the middle part sectional area that connects the body is less than the both ends sectional area that connects the body for the sectional area of a plurality of circles anti-skidding bead increases progressively from the middle part to both sides, so that hold luer connects.

The utility model discloses preferred technical scheme lies in, and the position shaping of joint body between anti-skidding bead and round joint has spacing bead to the tip that the butt round joint was realized spacingly.

The utility model discloses preferred technical scheme lies in, and the one end that connects the body has the joint, joint and round joint looks adaptation.

The utility model discloses preferred technical scheme lies in, the overhead two threads that are the symmetric distribution that are equipped with of joint, the thread with set up the internal thread looks adaptation at the round joint inner wall to it closes to make luer connect with round joint looks joint twist.

The utility model discloses preferred technical scheme lies in, the one end of nook closing member is passed through nook closing member head and round joint looks rigid coupling.

The utility model discloses preferred technical scheme lies in, the outer wall surface sculpture of needle tubing has the location scale mark of being convenient for carry out the puncture location.

The utility model discloses preferred technical scheme lies in, and the pointed end portion configuration of needle tubing is dull polish pointed end for strengthen the development location of puncture process.

The utility model discloses preferred technical scheme lies in, the shaping has a plurality of linear stripes that are used for increasing contact friction on the outer disc of round joint.

The utility model has the advantages that:

the utility model provides a guiding needle, operating personnel carry out percutaneous puncture with the guiding needle at the operation position under image equipment, and wherein, the needle point end of nook closing member passes the needle tubing subassembly and realizes percutaneous puncture to the operation position, and the needle tubing subassembly can keep somewhere in the patient internally to the passageway of the entering of as other surgical instruments. Through round joint and luer joint looks joint twist-on, the operating personnel of being convenient for installs and separates needle tubing subassembly and nook closing member, and the operation is more simple convenient. The luer connector and the round connector are easy to hold, so that an operator can conveniently hold the guide needle to perform positioning operation, the image irradiation time is reduced, the operation time is shortened, a guide channel is established for probing or puncturing tissues, multiple times of tissue sampling is facilitated, the pain of a patient due to multiple times of puncturing is reduced, and the possibility of needle channel transfer is reduced. Through the process, the guide needle is convenient to position and operate, a guide channel is established for exploring or puncturing tissues, the pain of a patient caused by multiple times of puncturing is reduced, the possibility of needle channel transfer is reduced, and the experience and the feeling of the patient are improved.

Drawings

FIG. 1 is a front view of the structure of an introducer needle provided in an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the structure of an introducer needle provided in an embodiment of the present invention;

FIG. 3 is an enlarged view of the structure of the introducer needle shown in section A of FIG. 2;

FIG. 4 is a front view of the needle cannula assembly provided in an embodiment of the present invention;

FIG. 5 is a right side view of a syringe assembly according to an embodiment of the present invention;

fig. 6 is a perspective view of the structure of the introducer needle according to the embodiment of the present invention.

In the figure:

1. a needle cannula assembly; 11. a needle tubing member; 111. positioning the scale marks; 112. sanding the tip; 12. a luer fitting; 121. a connector body; 1210. a clamping head; 1211. screw teeth; 122. anti-slip ribs; 123. a limiting convex rib; 2. a stylet assembly; 21. a needle core member; 22. a round joint; 221. an internal thread; 222. linear stripes; 23. a needle core head.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1 to 6, the introducer needle provided in this embodiment includes a needle tube assembly 1 and a needle core assembly 2, wherein one end of the needle core assembly 2 passes through the needle tube assembly 1, and the other end of the needle core assembly 2 is screwed with one end of the needle tube assembly 1. An operator conducts percutaneous puncture on a surgical site by a guide needle under an imaging device, wherein the needle tip of the needle core component 2 penetrates through the needle tube component 1 to realize percutaneous puncture on the surgical site, and the needle tube component 1 can be kept in a patient body so as to be used as an access channel for other surgical instruments. In order to make the assembly and disassembly between the needle core and the needle tube of the guide needle simpler and more convenient, the positioning operation is convenient to carry out, a guide channel is established for probing or puncturing tissues, the pain of a patient caused by multiple times of puncturing is reduced, and the possibility of needle channel transfer is reduced. Further, the needle tube assembly 1 includes a needle tube member 11 and a luer 12, one end of the needle tube member 11 is fixedly connected to the luer 12, the stylet assembly 2 includes a stylet 21 and a round connector 22, one end of the stylet 21 is fixedly connected to the round connector 22, one end of the stylet 21 can sequentially pass through the luer 12 and the needle tube member 11, and the other end of the stylet 21 can be engaged with the luer 12 by the round connector 22. Before use, an introducer needle of appropriate size and length is selected for the site where the procedure is to be performed. Using sterile techniques, the introducer needle is removed from the package and the needle tip protective sheath is removed. The operation is performed according to relevant regulations, before the percutaneous puncture of the guide needle, the anesthesia can be properly performed on the operation position, the skin is cut by a scalpel, and the percutaneous puncture process needs to be performed under the cooperation of an X-ray machine or B-ultrasonic equipment, so that the accurate positioning of the guide needle is ensured, and the puncture process is safe and effective. The operator holds the luer fitting 12 by hand and rotates the round fitting 22 in the counterclockwise direction to remove the needle core member 21 from the needle cannula member 11, and the needle cannula member 11 left in the patient can be used as an access passage for other surgical instruments. After the operation is completed, the other surgical instrument needles are slowly pulled out of the patient and are safely placed, and the needle tube member 11 is left in place. The steps can be repeated according to the requirements of patients. After the surgical operation is completed, the needle core member 21 is inserted into the needle holder 11 again, and the introducer needle is removed. Through round joint 22 and luer 12 looks joint twist joint, be convenient for operating personnel to needle tubing subassembly 1 and nook closing member subassembly 2 install and detach, the operation is simpler convenient. Luer 12 and round connector 22 are easy to hold, and the operator can hold the guide needle conveniently to perform positioning operation, so that the image irradiation time is reduced, the operation time is shortened, a guide channel is established for probing or puncturing tissues, multiple tissue sampling is facilitated, the pain of a patient due to multiple puncturing is reduced, and the possibility of needle channel transfer is reduced. Through the process, the guide needle is convenient to position and operate, a guide channel is established for exploring or puncturing tissues, the pain of a patient caused by multiple times of puncturing is reduced, the possibility of needle channel transfer is reduced, and the experience and the feeling of the patient are improved.

Preferably, the luer connector 12 includes a connector body 121 and a plurality of rings of anti-slip ribs 122, the anti-slip ribs 122 are integrally formed with the connector body 121, the cross-sectional area of the middle portion of the connector body 121 is smaller than the cross-sectional areas of the two ends of the connector body 121, so that the cross-sectional areas of the plurality of rings of anti-slip ribs 122 gradually increase from the middle portion to the two sides to grip the luer connector 12. The anti-slip protruding edge 122 can be frosted to increase the friction force of the operator contacting with the luer 12, and the luer 12 adopts the structure with the narrow middle part and the wide two ends, so that the contact area between the fingers of the operator and the luer 12 can be increased, the operator can more reliably hold the luer 12, the risk of slipping and loosening during operation is reduced, and the reliable operation and positioning is ensured.

Preferably, the joint body 121 is formed with a stopper rib 123 at a position between the anti-slip rib 122 and the round joint 22 to abut against the end of the round joint 22 for stopper. By arranging the limiting convex ridges 123, the end parts of the round joints 22 can be reliably positioned, the displacement of the round joints is limited, and the reliable positioning of the needle core assembly 2 and the needle tube assembly 1 is ensured.

Preferably, one end of the connector body 121 is provided with a snap head 1210, and the snap head 1210 is matched with the round connector 22. Through setting up joint 1210, be convenient for connect body 121 and round joint 22 and carry out the dismouting cooperation.

Preferably, the bayonet joint 1210 is provided with two threads 1211 which are symmetrically distributed, and the threads 1211 are matched with the internal thread 221 which is arranged on the inner wall of the round joint 22, so that the luer joint 12 is in bayonet joint with the round joint 22. Through the threaded connection and matching of the thread 1211 and the internal thread 221, the joint body 121 and the round joint 22 can be conveniently assembled and disassembled.

Preferably, one end of the needle core member 21 is fixedly connected with the round joint 22 through the needle core head 23. The core component 21 and the round joint 22 are convenient to be reliably positioned and assembled by arranging the core component head 23.

Preferably, the outer wall surface of the needle cannula member 11 is etched with positioning graduations 111 to facilitate positioning of the puncture. Through setting up location scale mark 111, the operating personnel of being convenient for carries out the puncture location under the development equipment.

Preferably, the tip portion of needle cannula member 11 is configured as a sharpened tip 112 to enhance visualization of the puncture procedure. By providing the sanding tip 112, the visualization location of the puncture process may be enhanced, helping the operator identify the location.

Preferably, the circular joint 22 has a plurality of linear stripes 222 formed on the outer circumferential surface thereof for increasing the contact friction. Through setting up linear stripe 222, can increase the frictional force that operating personnel contacted with round joint 22, make operating personnel grip round joint 22 more reliable, reduce the risk that the pine takes off that skids when the operation appears, guarantee that the operation location is reliable.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims

1. The utility model provides a guide needle, includes needle tubing subassembly (1) and nook closing member (2), the one end of nook closing member (2) passes through needle tubing subassembly (1), the other end of nook closing member (2) with the one end of needle tubing subassembly (1) is twisted mutually, its characterized in that:

the needle tube assembly (1) comprises a needle tube piece (11) and a luer connector (12);

one end of the needle tube piece (11) is fixedly connected with the Ruhr joint (12);

the stylet assembly (2) comprises a stylet piece (21) and a round joint (22);

one end of the needle core piece (21) is fixedly connected with the round joint (22);

one end of the needle core piece (21) can sequentially penetrate through the luer connector (12) and the needle tube piece (11), and the other end of the needle core piece (21) can be in clamping and screwing engagement with the luer connector (12) through the round connector (22).

2. The introducer needle of claim 1, wherein:

the luer connector (12) comprises a connector body (121) and a plurality of rings of anti-skidding ribs (122);

the anti-slip convex rib (122) is integrally formed with the joint body (121);

the cross-sectional area of the middle part of the connector body (121) is smaller than the cross-sectional areas of the two ends of the connector body (121), so that the cross-sectional areas of the anti-slip convex ribs (122) are gradually increased from the middle part to the two sides, and the luer connector (12) can be held conveniently.

3. The introducer needle of claim 2, wherein:

the joint body (121) is provided with a limiting convex rib (123) at a position between the anti-slip convex rib (122) and the round joint (22) so as to abut against the end part of the round joint (22) to realize limiting.

4. The introducer needle of claim 2, wherein:

one end of the joint body (121) is provided with a clamping joint (1210), and the clamping joint (1210) is matched with the round joint (22).

5. The introducer needle of claim 4, wherein:

two threads (1211) which are symmetrically distributed are arranged on the clamping joint (1210);

the thread (1211) is matched with an internal thread (221) arranged on the inner wall of the round joint (22) so that the luer joint (12) is clamped and screwed with the round joint (22).

6. The introducer needle of claim 1, wherein:

one end of the needle core piece (21) is fixedly connected with the round joint (22) through a needle core head (23).

7. The introducer needle of claim 1, wherein:

the outer wall surface of the needle tube part (11) is etched with positioning scale marks (111) convenient for puncture positioning.

8. The introducer needle of claim 1, wherein:

the tip portion of the needle tubing member (11) is configured as a frosted tip (112) to enhance visualization positioning for the puncture process.

9. The introducer needle of claim 1, wherein:

the outer circular surface of the round joint (22) is formed with a plurality of linear stripes (222) for increasing the contact friction force.