CN219207196U

CN219207196U - Lumbar puncture needle

Info

Publication number: CN219207196U
Application number: CN202221941683.7U
Authority: CN
Inventors: 李琳钰; 张涛; 李婛; 黄微; 王荔; 李波; 王秋璇
Original assignee: 923th Hospital of the Joint Logistics Support Force of PLA
Current assignee: 923th Hospital of the Joint Logistics Support Force of PLA
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2023-06-20
Anticipated expiration: 2032-07-26

Abstract

The utility model relates to a lumbar puncture needle, which comprises a needle tube, a needle seat and a needle core fixedly arranged on the needle seat, wherein the front end of the needle tube is a tip, the rear end of the needle tube is connected with a needle handle, a cavity penetrating through the needle handle is arranged in the needle handle, the needle core is inserted into the needle tube and the cavity, and the needle seat is connected with the needle handle; the outer wall of the needle tube is provided with scales. The outer wall of the needle tube is provided with scales, the scales can be paid attention to at any time in the lumbar puncture process, the needle insertion depth can be accurately controlled, the dependence of the success rate of the lumbar puncture process on the experience of doctors is reduced, and the safety of lumbar puncture is improved.

Description

Lumbar puncture needle

Technical Field

The utility model relates to the technical field of lumbar puncture, in particular to a lumbar puncture needle.

Background

Lumbar puncture is one of the commonly used examination methods in neurology, has important value for diagnosis and treatment of neurological diseases, and is an indispensable examination and treatment method in operations such as diagnosis of neurologic diseases, spinal anesthesia, spinal administration, spinal angiography, cerebrospinal fluid drainage and the like. In the operation of discharging cerebrospinal fluid, a lumbar puncture needle is an indispensable medical tool.

The existing lumbar puncture needle consists of a needle head, a needle handle and a needle core, when the needle head is inserted into a certain depth during use, a certain number of samples are taken according to the needs, and in the process, medical staff only rely on experience to operate when the needle head is inserted into a patient, so that the doctor cannot accurately grasp the depth. The puncture depth is too deep, the nerve is easy to be damaged, and the puncture depth is too shallow, so that the puncture is unsuccessful and the sampling cannot be performed.

Therefore, the lumbar puncture needle is designed, the insertion depth can be displayed through the scales on the lumbar puncture needle, and the dependence of the success rate of the lumbar puncture process on the experience of doctors is reduced.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide the lumbar puncture needle, the insertion depth can be displayed through the scales on the lumbar puncture needle, and the dependence of the success rate of the lumbar puncture process on the experience of doctors is reduced.

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

the lumbar puncture needle comprises a needle tube, a needle seat and a needle core fixedly arranged on the needle seat, wherein the front end of the needle tube is a tip, the rear end of the needle tube is connected with a needle handle, a cavity penetrating through the needle handle is arranged in the needle handle, the needle core is inserted into the needle tube and the cavity, and the needle seat is connected with the needle handle; the outer wall of the needle tube is provided with scales.

As a further improvement of the above technical scheme:

the lumbar puncture needle also comprises a telescopic sleeve, the telescopic sleeve is sleeved on the needle tube, one end of the telescopic sleeve is connected with the needle handle, and the other end of the telescopic sleeve is provided with a backing plate. Through the length adjustment of the telescopic sleeve, when the needle tube is inserted into a human body, the base plate is blocked outside the human body, so that the depth of the needle tube entering the human body is adjusted, the operation of a doctor is facilitated, the scale on the outer wall of the needle tube does not need to be stared at all times, and the safety of lumbar puncture is improved.

Further, the telescopic sleeve comprises a fixed cylinder and a movable cylinder, and the movable cylinder is sleeved on the fixed cylinder in a telescopic manner and is in threaded connection with the fixed cylinder; the fixed cylinder is connected with the needle handle, and the backing plate is arranged on the movable cylinder. The telescopic sleeve adopts a threaded structure, so that the length of the telescopic sleeve can be finely adjusted, and the accuracy of the depth of the inserted lumbar vertebra is improved.

Furthermore, one end of the movable cylinder, which is far away from the backing plate, is provided with a threaded hole, and the fixed cylinder and the movable cylinder are relatively fixed by screwing a bolt into the threaded hole. After the telescopic sleeve is adjusted to a proper length, the bolt is rotated and propped against the fixed cylinder, so that the fixed cylinder and the movable cylinder are relatively fixed. In the lumbar puncture process, the movable cylinder is not easy to rotate, so that the safety of lumbar puncture is improved.

Further, the outer surface of the movable cylinder is provided with anti-skid stripes. Is beneficial to rotating the movable cylinder.

The telescopic sleeve is made of transparent materials. Is beneficial to watching the scales on the needle tube.

Compared with the prior art, the utility model has the advantages that:

the outer wall of the needle tube is provided with scales, the scales are paid attention to at any time in the lumbar puncture process, the needle insertion depth is accurately controlled, the dependence of the success rate of the lumbar puncture process on the experience of doctors is reduced, and the safety of lumbar puncture is improved.

Drawings

Fig. 1 is a structural view of a lumbar puncture needle.

Figure 2 is a cross-sectional view of the lumbar puncture needle.

Reference numerals illustrate:

1. a needle tube; 2. a needle stand; 3. a needle core; 4. a needle handle; 5. a telescopic sleeve; 6. a backing plate; 7. a bolt; 51. a fixed cylinder; 52. a movable cylinder; 53. and (5) anti-skid stripes.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular and non-limiting detailed description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

As shown in fig. 1 and 2, the lumbar puncture needle of the present embodiment includes a needle tube 1, a needle seat 2 and a needle core 3 fixedly arranged on the needle seat 2, wherein the front end of the needle tube 1 is a tip, the rear end is connected with a needle handle 4, a cavity penetrating through the needle handle 4 is arranged in the needle handle 4, the needle core 3 is inserted into the needle tube 1 and the cavity, and the needle seat 2 is connected with the needle handle 4; the outer wall of the needle tube 1 is provided with scales. The telescopic sleeve 5 is made of transparent materials.

The lumbar puncture needle further comprises a telescopic sleeve 5, the telescopic sleeve 5 is sleeved on the needle tube 1, one end of the telescopic sleeve is connected with the needle handle 4, and a base plate 6 is arranged at the other end of the telescopic sleeve. The telescopic sleeve 5 comprises a fixed cylinder 51 and a movable cylinder 52, and the movable cylinder 52 is sleeved on the fixed cylinder 51 in a telescopic manner and is in threaded connection with the fixed cylinder 51; the fixed cylinder 51 is connected to the needle handle 4, and the backing plate 6 is provided on the movable cylinder 52. The movable cylinder 52 is provided with a threaded hole at one end far away from the backing plate 6, and the fixed cylinder 51 and the movable cylinder 52 are relatively fixed by screwing the bolt 7 into the threaded hole. The outer surface of the movable cylinder 52 is provided with anti-slip stripes 53.

The use of this embodiment refers to the following steps:

when in use, firstly, the length of the telescopic sleeve 5 is adjusted according to the depth of the needle to be inserted. Next, the bolt 7 is turned to fix the fixed cylinder 51 and the movable cylinder 52 relatively. And the needle tube 1 is inserted into the lumbar vertebral canal, so that the backing plate 6 is attached to the skin, and the aim of controlling the needle insertion depth is fulfilled. Finally, the core 3 is withdrawn, and fluid is discharged from the opening of the needle handle 4 for examination, or medicine is injected from the opening of the needle handle 4 for spinal canal treatment.

Claims

1. Lumbar puncture needle, its characterized in that: the needle comprises a needle tube (1), a needle seat (2), a telescopic sleeve (5) and a needle core (3) fixedly arranged on the needle seat (2), wherein the front end of the needle tube (1) is a pointed end, the rear end of the needle tube is connected with a needle handle (4), a cavity penetrating through the needle handle (4) is arranged in the needle handle (4), the needle core (3) is inserted into the needle tube (1) and the cavity, and the needle seat (2) is connected with the needle handle (4); the outer wall of the needle tube (1) is provided with scales; the telescopic sleeve (5) is sleeved on the needle tube (1) and one end is connected with the needle handle (4), and the other end is provided with a backing plate (6).

2. The lumbar puncture needle according to claim 1, wherein: the telescopic sleeve (5) comprises a fixed cylinder (51) and a movable cylinder (52), and the movable cylinder (52) is sleeved on the fixed cylinder (51) in a telescopic manner and is in threaded connection with the fixed cylinder; the fixed cylinder (51) is connected with the needle handle (4), and the backing plate (6) is arranged on the movable cylinder (52).

3. The lumbar puncture needle according to claim 2, wherein: one end of the movable cylinder (52) far away from the backing plate (6) is provided with a threaded hole, and the fixed cylinder (51) and the movable cylinder (52) are relatively fixed by screwing the bolt (7) into the threaded hole.

4. The lumbar puncture needle according to claim 3, wherein: the outer surface of the movable cylinder (52) is provided with anti-slip stripes (53).

5. The lumbar puncture needle according to claim 1, wherein: the telescopic sleeve (5) is made of transparent materials.