CN216908067U

CN216908067U - Novel lumbar puncture needle with protective sleeve

Info

Publication number: CN216908067U
Application number: CN202122954381.5U
Authority: CN
Inventors: 李旭东; 何易; 温瑞娟; 孙燕玲; 龙冰
Original assignee: Third Affiliated Hospital Sun Yat Sen University
Current assignee: Third Affiliated Hospital Sun Yat Sen University
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-07-08
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a novel lumbar puncture needle with a protective sleeve, which relates to the technical field of medical treatment, and aims at solving the problems that when a lumbar puncture needle is operated, the internal medicament and cerebrospinal fluid can flow back and overflow due to the replacement of the medicament in the operation process, the accurate insertion distance cannot be judged during the insertion of a needle, the judgment can only be carried out according to medical experience, errors can be easily judged, the exposed outer part of the needle can cause cross infection after the needle is used, and the health of medical care is seriously threatened.

Description

Novel lumbar puncture needle with protective sleeve

Technical Field

The utility model relates to the technical field of medical treatment, in particular to a novel lumbar puncture needle with a protective sleeve.

Background

The lumbar puncture needle is common in clinical application, and the lumbar puncture operation is accurate and correct, so that the injury and pain of patients can be reduced. Because the in-process of operation is changed the medicament and can lead to inside medicament and cerebrospinal fluid backward flow to spill over, can't judge accurate insertion distance in the contact pin, can only judge according to medical experience, judge the error very easily, the outside that the syringe needle exposes after using can cause cross infection, seriously threatens the healthy of doctorsing and nurses, we have proposed a novel waist of taking protective sleeve to wear the needle for this reason.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model adopts the following technical scheme:

a novel lumbar puncture needle with a protective sleeve comprises a connecting cylinder, wherein a needle head is fixedly communicated with the inside of one side of the connecting cylinder, and a plurality of scale shallow grooves are formed in the surface of the needle head;

a butterfly valve is fixed inside the connecting cylinder;

a spring is fixed on the side, close to the needle, of the butterfly valve, the spring is sleeved on the outer wall of the connecting cylinder, a protective sleeve is fixed at the other end of the spring, and the protective sleeve is sleeved on the outer wall of the connecting position of the connecting cylinder and the needle;

the utility model discloses a syringe needle protection device, including protective sheath, syringe needle, the tip one side that the protective sheath is close to the syringe needle is fixed with the framework, two spouts have been seted up to the inside of framework, the inside of spout all is overlapped and is equipped with the slider, two one side that the slider is close to each other is fixed with the fixture block, the draw-in groove has been seted up to the syringe needle side that is close to of fixture block, the tip opposite side that is close to the syringe needle of protective sheath is fixed with the pothook.

Preferably, a screw handle is fixed on the outer portion of the protective sleeve, and a plurality of medical harmless coatings are fixed inside each scale shallow groove.

Preferably, the clamping hook can be clamped inside the clamping groove of the clamping block, and the needle head is sleeved inside the protective sleeve.

Preferably, the connecting cylinder is connected with the end part of the protective sleeve through threads, and anti-skid threads are arranged outside the screwing handle.

Compared with the prior art, the utility model has the beneficial effects that: according to the disposable safety syringe, the protective sleeve, the spring, the butterfly valve, the clamping block and the like are arranged, wherein the spring pushes the protective sleeve to protect the syringe needle, the clamping block further protects the syringe needle to prevent cross infection caused by exposure and accidental puncture, the butterfly valve prevents backflow of cerebrospinal fluid and medicament when the medicament is replaced, and the syringe needle is provided with scales, so that the medical staff can conveniently and accurately judge.

Drawings

Fig. 1 is a schematic front sectional view of a novel lumbar puncture needle with a protective sleeve according to the present invention;

fig. 2 is a schematic perspective view of a novel lumbar puncture needle with a protective sleeve according to the present invention;

FIG. 3 is an enlarged structural view of FIG. 1, FIG. A, of a novel lumbar puncture needle with a protective sleeve according to the present invention;

fig. 4 is a schematic cross-sectional view of a frame body of the novel lumbar puncture needle with a protective sleeve provided by the utility model.

In the figure: 1. a connecting cylinder; 2. a butterfly valve; 3. a spring; 4. a protective sleeve; 5. screwing a hand; 6. a hook; 7. a needle head; 8. scale shallow grooves; 9. a frame body; 10. a clamping block; 11. a chute; 12. a slide block.

Detailed Description

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

Referring to fig. 1-4, in one embodiment provided by the present invention, the novel lumbar puncture needle with the protective sleeve comprises a connecting cylinder 1, a needle head 7 is fixedly communicated with the inside of one side of the connecting cylinder 1, and a plurality of scale shallow grooves 8 are formed on the surface of the needle head 7;

a butterfly valve 2 is fixed inside the connecting cylinder 1, and the cerebrospinal fluid and the medicament are blocked by the butterfly valve 2;

a spring 3 is fixed on the side, close to the needle, of the butterfly valve 2, the spring 3 is sleeved on the outer wall of the connecting cylinder 1, a protective sleeve 4 is fixed at the other end of the spring 3, and the protective sleeve 4 is sleeved on the outer wall of the connecting position of the connecting cylinder 1 and the needle 7;

a frame body 9 is fixed on one side of the end part of the protective sleeve 4 close to the needle 7, two sliding grooves 11 are formed in the frame body 9, sliding blocks 12 are sleeved in the sliding grooves 11, clamping blocks 10 are fixed on one sides of the two sliding blocks 12 close to each other, clamping grooves are formed in the sides of the clamping blocks 10 close to the needle 7, clamping hooks 6 are fixed on the other side of the end part of the protective sleeve 4 close to the needle 7, and the clamping blocks 10 can block the opening of the protective sleeve 4 to prevent the needle tip from being pricked out;

In this embodiment, the wrench 5 is fixed on the exterior of the protective sheath 4, and a plurality of medical harmless coatings are fixed inside each scale shallow groove 8.

In this embodiment, the hook 6 can be clamped inside the clamping groove of the clamping block 10, and the needle 7 is sleeved inside the protective sleeve 4.

In this embodiment, the connecting cylinder 1 is connected with the end of the protective sleeve 4 through threads, and the outside of the wrench 5 is provided with anti-slip threads.

The working principle is that firstly, the connecting cylinder 1 is in threaded connection with the end part of the protective sleeve 4, the spring 3 is in a compression state at the moment, the needle 7 is inserted into the body of a patient, when the needle is inserted, the scale shallow groove 8 and the color inside the scale shallow groove are observed to determine the inserted centimeter, when the needle is injected, the injection needle cylinder is inserted into the connecting cylinder 1, the butterfly valve 2 is opened in a rotating mode, then the medicine is pushed into the connecting cylinder 1, the medicine enters the needle 7 and is injected into the body, when the next tube of medicine is replaced, the butterfly valve 2 is closed firstly to prevent the medicine and cerebrospinal fluid which are injected before from overflowing, after the injection needle cylinder is inserted again, the butterfly valve 2 is opened in a rotating mode, the medicine is injected, the butterfly valve 2 is closed after the medicine is injected, the needle 7 is pulled out, then the screwing hand 5 is rotated to enable the end part of the protective sleeve 4 to be separated from the connecting cylinder 1, and the spring 3 pushes the protective sleeve 4 and the screwing hand 5 to move towards the needle 7 direction after the needle is separated, the needle 7 is sleeved inside the protective sleeve 4, the needle tip is retracted into the protective sleeve 4, then the fixture block 10 is pushed to move in the frame body 9 until the clamping hook 6 is clamped into the clamping groove of the fixture block 10, and the sliding groove 11 and the sliding block 12 limit the fixture block 10 to prevent the fixture block from sliding out of the frame body 9.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The novel lumbar puncture needle with the protective sleeve comprises a connecting cylinder (1) and is characterized in that a needle head (7) is fixedly communicated with the inside of one side of the connecting cylinder (1), and a plurality of scale shallow grooves (8) are formed in the surface of the needle head (7);

a butterfly valve (2) is fixed inside the connecting cylinder (1);

a spring (3) is fixed on the side, close to the needle head (7), of the butterfly valve (2), the spring (3) is sleeved on the outer wall of the connecting cylinder (1), a protective sleeve (4) is fixed at the other end of the spring (3), and the protective sleeve (4) is sleeved on the outer wall of the connecting position of the connecting cylinder (1) and the needle head (7);

tip one side that protective sheath (4) are close to syringe needle (7) is fixed with framework (9), two spout (11) have been seted up to the inside of framework (9), the inside of spout (11) all overlaps and is equipped with slider (12), two one side that slider (12) are close to each other is fixed with fixture block (10), the syringe needle (7) side that is close to of fixture block (10) is opened and is equipped with the draw-in groove, the tip opposite side that is close to syringe needle (7) of protective sheath (4) is fixed with pothook (6).

2. The novel lumbar puncture needle with the protection sleeve according to claim 1, characterized in that a screw driver (5) is fixed on the exterior of the protection sleeve (4), and a plurality of medical harmless coatings are fixed on the interior of each scale shallow groove (8).

3. The novel lumbar puncture needle with a protective sleeve according to claim 1, wherein the hook (6) can be clamped inside the clamping groove of the clamping block (10), and the needle head (7) is sleeved inside the protective sleeve (4).

4. The novel lumbar puncture needle with the protection sleeve as claimed in claim 2, wherein the connecting cylinder (1) is in threaded connection with the end of the protection sleeve (4), and the outside of the wrench (5) is provided with anti-skid threads.