CN218852737U

CN218852737U - Safety puncture needle

Info

Publication number: CN218852737U
Application number: CN202222046619.9U
Authority: CN
Inventors: 蔡大伟; 吴天军; 谢立平; 周勇
Original assignee: Jiangsu Kangjin Medical Instrument Co ltd
Current assignee: Jiangsu Kangjin Medical Instrument Co ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2023-04-14
Anticipated expiration: 2032-08-04

Abstract

The utility model discloses a safe pjncture needle in medical treatment pjncture needle field, including puncture needle core, puncture needle cover, the fixed baffle that is provided with in puncture needle cover outside end, the baffle runs through and is provided with the pinhole that matches the butt joint with the puncture needle core, the puncture needle core activity runs through and extends to external from the pinhole behind the puncture needle cover, the puncture needle cover outside still is provided with the locating component who advances line location to the puncture needle core. The utility model discloses can adjust in advance when the puncture after the puncture degree of depth of pjncture needle on the needle cover, fix a position the puncture and then guarantee the degree of depth of puncture and avoid the puncture excessive when the puncture, and still can protect the recovery to the pjncture needle through the puncture needle cover after the puncture, holistic practical function is obvious, is worth current medical clinical use and uses widely.

Description

Safety puncture needle

Technical Field

The utility model relates to a medical treatment pjncture needle field especially relates to a safe pjncture needle.

Background

With the development of medical level, in recent years, cell biopsy by fine needle puncture under ultrasonic guidance is increasingly applied to daily medical treatment. In the PICC catheter catheterization process, puncture is used as an indispensable step of catheterization operation, and the puncture is used for establishing an in vivo blood vessel and an in vitro channel and preparing for subsequent catheter penetration.

However, because the size of the blood vessel of the human body is smaller, if the operation is wrong during puncture, after the puncture needle punctures the tube wall at one side of the blood vessel, the puncture needle can puncture even the tube wall at the other side due to too deep puncture, so that the patient is painful, and simultaneously, the doctor needs to puncture repeatedly due to abnormal puncture reaction; meanwhile, the puncture part is a human vein, so that the used puncture needle has the possibility of pollution, and the sharp needle point can bring the risk of needle stick injury to a clinician and bring certain danger to the health of the clinician. To this end, we propose a safety puncture needle to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and providing a safe puncture needle, which aims at realizing the purpose, the utility model adopts the following technical proposal: the utility model provides a safe pjncture needle, includes puncture needle core, puncture needle cover, the fixed baffle that is provided with in puncture needle cover outside end, the baffle runs through and is provided with the pinhole that matches the butt joint with the puncture needle core, the puncture needle core activity runs through and extends to external from the pinhole behind the puncture needle cover, the puncture needle cover outside still is provided with carries out the locating component who fixes a position to the puncture needle core.

Preferably, the positioning assembly comprises a threaded pin which is in threaded penetrating connection with the outer side of the puncture needle sleeve, the outer side end of the threaded pin is fixedly connected with a knob, the threaded pin is located at the inner side end of the inner cavity of the puncture needle sleeve and is fixedly connected with a rubber head, and the rubber head is abutted against the outer side of the puncture needle core and is fixed on the inner wall of the puncture needle sleeve.

Preferably, a handle is fixedly connected to the outer side end of the puncture needle core.

Preferably, the outer side of the puncture needle core is uniformly provided with scale marks.

Preferably, the handle outside is provided with grips the groove, the outside of handle and the outside of knob all laminate and are provided with the friction pad of rubber material.

Preferably, the puncture needle sleeve is made of transparent plastic materials.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) The safety puncture needle consists of a puncture needle sleeve and a puncture needle core, wherein the top end of the puncture needle sleeve is provided with a baffle, and the baffle can be in contact with the needle guide frame for limiting after puncturing to a set position, so that the puncture depth is ensured to be accurate, the situation that the puncture is too deep to puncture the tube wall of the other side of a patient is avoided, the pain of the patient is reduced, and the puncture operation of a doctor is also facilitated;

(2) Scale marks are marked on the puncture needle core, and after the puncture depth is known through ultrasonic development, the puncture depth can be ensured by adjusting the position of the puncture needle sleeved on the puncture needle core through the scale marks;

(3) The puncture needle sleeve is provided with a locking device, and the needle sleeve can be locked after the puncture depth is adjusted, so that the needle sleeve is prevented from moving in the puncture process;

(4) The puncture needle sleeve has the function of recovery protection, and after the puncture needle is used, the needle tip can be received in the sleeve for protection, so that the puncture injury to medical personnel is avoided.

Drawings

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

FIG. 2 is a schematic view of the puncture needle core shown in FIG. 1 according to the present invention;

fig. 3 is a schematic view of the structure of the puncture needle sheath in fig. 1 according to the present invention.

In the figure: 1-puncture needle core, 2-handle, 201-holding groove, 202-friction pad, 3-puncture needle sleeve, 4-scale mark, 5-threaded pin, 501-knob, 6-baffle and 7-needle hole.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a safe puncture needle comprises a puncture needle core 1 and a puncture needle sleeve 3, wherein a handle 2 is fixedly connected to the outer side of the puncture needle core 1, scale marks 4 are uniformly arranged on the outer side of the puncture needle core 1, a baffle 6 is fixedly arranged on the outer side of the puncture needle sleeve 3, the baffle 6 is provided with a needle hole 7 matched and butted with the puncture needle core 1 in a penetrating manner, the puncture needle core 1 movably penetrates through the puncture needle sleeve 3 and then extends to be external from the needle hole 7, a positioning assembly for positioning the puncture needle core 1 is further arranged on the outer side of the puncture needle sleeve 3 and comprises a threaded pin 5 in threaded penetrating connection with the outer side of the puncture needle sleeve 3, a knob 501 is fixedly connected to the outer side of the threaded pin 5, the threaded pin 5 is located at the inner side of the inner cavity of the puncture needle sleeve 3 and is fixedly connected with a rubber head which is abutted to the outer side of the puncture needle core 1 and fixed on the inner wall of the puncture needle sleeve 3.

Wherein, the outer side of the handle 2 is provided with a holding groove 201 for facilitating the holding operation of medical personnel, and the outer side of the handle 2 and the outer side of the knob 501 are both provided with friction pads 202 made of rubber materials in a fitting manner to increase the holding friction force, thereby achieving good anti-slip effect.

Wherein, the puncture needle cover 3 is made of transparent plastic material, which is beneficial for medical personnel to penetrate through the position of the puncture needle core 1 in the puncture needle cover 3 and simultaneously facilitates the puncture needle core 1 to penetrate out from the needle hole 7 outside the baffle 6.

The utility model discloses when using, know the depth of puncture through the ultrasonic development after, adjust the position of puncture needle cover 3 on puncture needle core 1 through scale mark 4 and can guarantee the depth of puncture, specifically through the scale mark 4 of sliding puncture needle cover 3 in the outside of puncture needle core 1 and observing the puncture needle core 1 outside, and then the length of the part that makes puncture needle core 1 be located the baffle outside is unanimous with actual puncture length. Then, the knob 501 in the positioning assembly drives the threaded pin 5 on the outer side of the puncture needle sleeve 3 to rotate, and the rubber head on the inner side end is pressed down and the puncture needle core 1 in the puncture needle sleeve 3 is extruded to be fixed in the process of rotating the threads of the threaded pin 5, so that the puncture length is preset. Subsequently, the puncture needle core 1 is punctured by aligning the puncture position of the needle guide frame, and the baffle 6 is arranged at the top end of the puncture needle sleeve 3, so that after the puncture needle is punctured to a set position, the baffle 6 can be contacted with the needle guide frame for limitation, and the puncture depth is ensured to be accurate and the puncture is completed. After the puncture is accomplished, the staff can take out puncture needle core 1 and puncture needle cover 3 to loosen and accomodate puncture needle core 1 to puncture needle cover 3 in completely after the locating component, fix a position puncture needle core 1 once more through the locating component afterwards, and then avoid puncture needle core 1 to expose the external world and cause the unnecessary damage to medical personnel.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Claims

1. The utility model provides a safe puncture needle, includes puncture needle core (1), puncture needle cover (3), its characterized in that, puncture needle cover (3) outside end is fixed and is provided with baffle (6), baffle (6) run through be provided with puncture needle core (1) match pinhole (7) of butt joint, puncture needle core (1) activity runs through and extends to the external world from pinhole (7) behind puncture needle cover (3), puncture needle cover (3) outside still is provided with the locating component who advances line location to puncture needle core (1).

2. A safety puncture needle according to claim 1, wherein the positioning assembly comprises a threaded pin (5) which is in threaded through connection with the outer side of the puncture needle sheath (3), the outer side end of the threaded pin (5) is fixedly connected with a knob (501), the inner side end of the threaded pin (5) which is positioned in the inner cavity of the puncture needle sheath (3) is fixedly connected with a rubber head, and the rubber head is abutted against the outer side of the puncture needle core (1) and is fixed on the inner wall of the puncture needle sheath (3).

3. A safety puncture needle according to claim 2, characterized in that a handle (2) is fixedly connected to the outer end of the puncture needle core (1).

4. A safety puncture needle according to claim 3, characterized in that the outside of the puncture needle core (1) is uniformly provided with graduation marks (4).

5. A safety puncture needle according to claim 4, characterized in that the outer side of the handle (2) is provided with a holding groove (201), and the outer side of the handle (2) and the outer side of the knob (501) are both provided with a rubber friction pad (202) in an attaching way.

6. A safety puncture needle according to claim 4, wherein the puncture needle sheath (3) is made of transparent plastic material.