CN218899627U

CN218899627U - Nerve blocking needle with adjustable insertion depth

Info

Publication number: CN218899627U
Application number: CN202320175736.7U
Authority: CN
Inventors: 陈�峰; 古玲玲; 瞿琬林; 周鹏
Original assignee: DUJIANGYAN PEOPLE S HOSPITAL
Current assignee: DUJIANGYAN PEOPLE S HOSPITAL
Priority date: 2023-02-10
Filing date: 2023-02-10
Publication date: 2023-04-25
Anticipated expiration: 2033-02-10

Abstract

The utility model discloses a nerve block needle with adjustable insertion depth, belongs to the technical field of medical supplies, and solves the problem that tissue is easily damaged due to too deep needle insertion due to different insertion depths of different individuals in nerve block in the prior art; the needle body is sleeved with a sleeve, and one end of the sleeve is connected with one end of the connector; the needle body is also sleeved with a telescopic tube which is inserted into the sleeve and can move along the axial direction of the sleeve. The depth of the telescopic tube extending into the sleeve is adjusted, so that the length of the needle body extending out of the telescopic tube is adjusted, namely, when the puncture is performed, medical staff adjusts the depth of the telescopic tube extending into the sleeve according to the condition of a patient, so that the length of the needle body extending out of the telescopic tube reaches a preset length; that is, the cooperation of flexible pipe and sleeve pipe can be adjusted according to patient's actual conditions and needle the degree of depth is advanced to this application accessible, is favorable to promoting the security height of whole operation.

Description

Nerve blocking needle with adjustable insertion depth

Technical Field

The utility model belongs to the technical field of medical supplies, and particularly relates to a nerve blocking needle with adjustable insertion depth.

Background

Nerve block needle, is used for injecting anesthetic liquid mostly, but the measurement of anesthetic liquid is important especially, the medical personnel uses the left hand to separate the common carotid sheath and guide and insert the needle, right hand injector insert the needle vertically lightly, after reaching cervical vertebra bone, withdraw the needle point 2 millimeters, then withdraw the piston, confirm there is no blood return or cerebrospinal fluid, then push inward and inject the anesthetic;

the nerve block can obtain a larger anesthetic region by only injecting one part. However, there is a possibility of serious complications, so that the operation must be familiar with the local anatomy, and the tissue through which the puncture needle passes, and the nearby blood vessels, organs, body cavities, and the like. The common nerve block is helpful for the inter-nerve, infraorbital, ischial, finger nerve trunk block, cervical plexus, arm nerve plexus block, and the stellate ganglion and lumbar sympathoganglion block for diagnosis and treatment.

At present, because different individuals have different insertion depths, the tissue is easily damaged due to over-deep needle insertion, and therefore, it is necessary to develop a nerve blocking needle with adjustable insertion depth so as to reduce the problem of damage to the tissue due to over-deep needle insertion.

Disclosure of Invention

In view of the above, the present utility model provides a nerve block needle with adjustable insertion depth, so as to solve the problem that the tissue is damaged due to the too deep insertion of the needle because the insertion depth of different individuals in the existing nerve block is different.

The technical scheme adopted by the utility model is as follows:

the nerve blocking needle with the adjustable insertion depth comprises a connector and a needle body arranged at one end of the connector, wherein a sleeve is sleeved on the needle body, and one end of the sleeve is connected with one end of the connector; the needle body is also sleeved with a telescopic tube, the telescopic tube is inserted into the sleeve, and the telescopic tube can move along the axial direction of the sleeve.

In the technical scheme, the length of the needle body is generally 60mm-130mm, and 120mm is preferable in the scheme; the diameter of the needle body is 0.7mm, and the angle of the needle tip is plus or minus 25 degrees; the needle body adopts 304 medical steel needles, and has better elasticity and toughness; in the scheme, the length of the needle body extending out of the telescopic tube is adjusted by adjusting the depth of the telescopic tube extending into the sleeve, namely, when the puncture is performed, medical staff adjusts the depth of the telescopic tube extending into the sleeve according to the condition of a patient, so that the length of the needle body extending out of the telescopic tube reaches a preset length; that is, the cooperation of flexible pipe and sleeve pipe can be adjusted according to patient's actual conditions and needle the degree of depth is advanced to this application accessible, is favorable to promoting the security height of whole operation.

Preferably, the telescopic tube comprises a plurality of telescopic sub-tubes which are sequentially sleeved from top to bottom, and two adjacent telescopic sub-tubes are in threaded connection.

In the technical scheme, if the lengths of the sleeve and the telescopic pipe are set to be longer, the maximum length of the needle body extending out of the telescopic pipe is reduced, and if the length of the needle body extending out of the telescopic pipe is set to be shorter, the length adjusting range of the needle body extending out of the telescopic pipe is reduced; therefore, in order to solve the technical problem, the telescopic tube is arranged into a telescopic structure consisting of a plurality of telescopic sub-tubes, and the adjusting range of the needle body extending out of the telescopic tube is increased.

Preferably, the telescopic tube is in threaded connection with the sleeve.

In the technical scheme, the telescopic tube and the sleeve are in threaded connection, so that medical staff can conveniently adjust the depth of the telescopic tube extending into the sleeve; secondly, the telescopic pipe and the sleeve are convenient to detach.

Preferably, the sum of the lengths of the plurality of telescopic sub-tubes plus the length of the sleeve is greater than the length of the needle body.

In the technical scheme, the length sum of the telescopic sub-tubes and the length of the sleeve are 145mm, namely, when the retarding needle is not used, medical staff can adjust the telescopic tubes and the sleeve to be in the longest length state, so that the needle body can be completely wrapped, and the retarding needle is protected.

Preferably, a limiting ring is arranged at the bottom of each telescopic sub-pipe, and the diameter of the limiting ring is larger than that of the telescopic sub-pipe adjacent to the limiting ring.

In the technical scheme, the limiting ring has two functions, namely, the telescopic sub-pipe is prevented from completely extending into the telescopic sub-pipe adjacent to the telescopic sub-pipe; secondly, a stress point for rotating the telescopic sub-tube is provided for the staff, so that the staff can conveniently rotate the telescopic sub-tube, and the aim of adjusting the length of the needle body extending out of the telescopic tube is fulfilled.

Preferably, the side wall of the limiting ring is provided with a plurality of anti-slip edges, and the anti-slip edges are arranged at intervals along the circumferential direction of the limiting ring.

In the technical scheme, the arrangement of the anti-slip ribs increases friction between the limiting ring and the palm of the medical staff, and is more beneficial to pulling the limiting ring by a patient.

Preferably, the needle body is provided with scale marks, and the scale marks are arranged along the axial direction of the needle body.

In this technical scheme, it is to be noted, through being provided with the scale at the surface of needle body, be favorable to making things convenient for medical personnel to adjust the needle degree of depth of inserting, promote the precision of regulation.

Preferably, a protective sleeve is sleeved at one end of the telescopic tube, which is far away from the needle seat, the protective sleeve is in interference connection with the telescopic tube, and the protective sleeve is made of elastic materials.

In the technical scheme, the protective sleeve is made of rubber materials and is used for plugging the lower opening of the bottommost telescopic sub-tube, so that the needle body is positioned in the closed space, and the probability of being polluted by the outside is reduced.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

the depth of the telescopic tube extending into the sleeve is adjusted, so that the length of the needle body extending out of the telescopic tube is adjusted, namely, when the puncture is performed, medical staff adjusts the depth of the telescopic tube extending into the sleeve according to the condition of a patient, so that the length of the needle body extending out of the telescopic tube reaches a preset length; that is, the cooperation of flexible pipe and sleeve pipe can be adjusted according to patient's actual conditions and needle the degree of depth is advanced to this application accessible, is favorable to promoting the security height of whole operation.

Drawings

The utility model will now be described by way of example and with reference to the accompanying drawings in which:

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic perspective view of the needle of the present utility model after separation from the protective sheath and adjustment of the telescoping sub-tube;

FIG. 3 is a schematic view of a split perspective structure of the protective sheath and telescoping sub-tube of the present utility model;

FIG. 4 is a schematic perspective view of the needle and connector of the present utility model;

reference numerals

10-connector, 20-sleeve, 30-telescopic tube, 31-telescopic sub-tube, 32-limiting ring, 33-anti-slip edge, 40-protective sleeve, 50-needle body and 51-scale mark.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Example 1

As shown in fig. 1 to 4, the embodiment of the utility model discloses a nerve block needle with adjustable insertion depth, which comprises a connector 10 and a needle body 50 arranged at one end of the connector 10, wherein a sleeve 20 is sleeved on the needle body 50, and one end of the sleeve 20 is connected with one end of the connector 10; the needle body 50 is further sleeved with a telescopic tube 30, the telescopic tube 30 is inserted into the sleeve 20, and the telescopic tube 30 can move along the axial direction of the sleeve 20. The length of the needle body 50 is 120mm; the diameter of the needle body 50 is 0.7mm, and the angle of the needle tip is plus or minus 25 degrees; the needle body 50 adopts 304 medical steel needles, and has better elasticity and toughness; in the scheme, the length of the needle body 50 extending out of the telescopic tube 30 is adjusted by adjusting the depth of the telescopic tube 30 extending into the sleeve 20, namely, when the puncture is performed, medical staff adjusts the depth of the telescopic tube 30 extending into the sleeve 20 according to the condition of a patient, so that the length of the needle body 50 extending out of the telescopic tube 30 reaches a preset length; that is, the needle insertion depth can be adjusted before operation according to the actual condition of a patient through the cooperation of the telescopic tube 30 and the sleeve 20, so that the safety of the whole operation is improved.

As shown in fig. 2 and 3, the telescopic tube 30 includes a plurality of telescopic sub-tubes 31 sequentially sleeved from top to bottom, and two adjacent telescopic sub-tubes 31 are in threaded connection. If the lengths of the cannula 20 and the extension tube 30 are set to be longer, the maximum length of the needle 50 extending out of the extension tube 30 is reduced, and if the lengths are set to be shorter, the length adjustment range of the needle 50 extending out of the extension tube 30 is reduced; therefore, in order to solve this technical problem, the telescopic tube 30 is configured as a telescopic structure composed of a plurality of telescopic sub-tubes 31, which increases the adjusting range of the needle 50 extending out of the telescopic tube 30.

As shown in FIG. 1, the sum of the lengths of the sub-tubes of the plurality of telescoping tubes 30 plus the length of the cannula 20 is greater than the length of the needle 50. It should be noted that, the sum of the lengths of the sub-tubes of the plurality of telescopic tubes 30 and the length of the sleeve 20 is 145mm, that is, when the blocking needle is not in use, the medical staff can adjust the telescopic tubes 30 and the sleeve 20 to the longest length state, so that the needle body 50 can be completely wrapped, and the blocking needle is protected.

As shown in fig. 3, a limiting ring 32 is disposed at the bottom of each telescopic sub-tube 31, and the diameter of the limiting ring 32 is larger than that of the telescopic sub-tube 31 adjacent to the limiting ring. It should be noted that the limiting ring 32 has two functions, one of which is to prevent the telescopic sub-tube 31 from extending completely into the telescopic sub-tube 31 adjacent thereto; secondly, a stress point for rotating the telescopic sub-tube 31 is provided for the staff, so that the staff can conveniently rotate the telescopic sub-tube 31, and the aim of adjusting the length of the needle body 50 extending out of the telescopic tube 30 is fulfilled.

As shown in fig. 3, the side wall of the stop collar 32 is provided with a plurality of anti-slip ribs 33, and the plurality of anti-slip ribs 33 are arranged at intervals along the circumferential direction of the stop collar 32. It should be noted that, the arrangement of the anti-slip ribs 33 increases the friction between the limiting ring 32 and the palm of the medical staff, which is more beneficial for the patient to pull the limiting ring 32.

Example 2

As shown in fig. 2 and 3, this embodiment is substantially the same as the above embodiment, except that the telescopic tube 30 is screwed with the sleeve 20. It should be noted that, the telescopic tube 30 is in threaded connection with the sleeve 20, so that the medical staff can conveniently adjust the depth of the telescopic tube 30 extending into the sleeve 20; second, the disassembly of the bellows 30 and the sleeve 20 is also facilitated.

Example 3

As shown in fig. 4, this embodiment is substantially the same as the above embodiment, except that the needle body 50 is provided with graduation marks 51, and the graduation marks 51 are disposed along the axial direction of the needle body 50. It should be noted that, through being provided with the scale at the surface of needle body 50, be favorable to making things convenient for medical personnel to adjust the needle degree of depth of inserting, promote the precision of regulation.

Example 4

As shown in fig. 1 and 2, this embodiment is substantially the same as the above embodiment, except that a protecting sleeve 40 is sleeved at an end of the telescopic tube 30 away from the needle seat, the protecting sleeve 40 is in interference connection with the telescopic tube 30, and the protecting sleeve 40 is made of an elastic material. It should be noted that, the protective sleeve 40 is made of a rubber material, so as to seal the lower opening of the bottommost telescopic sub-tube 31, so that the needle body 50 is located in the closed space, and the probability of being polluted by the outside is reduced. In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The nerve blocking needle with the adjustable insertion depth comprises a connector (10) and a needle body (50) arranged at one end of the connector (10), and is characterized in that a sleeve (20) is sleeved on the needle body (50), and one end of the sleeve (20) is connected with one end of the connector (10); the needle body (50) is also sleeved with a telescopic tube (30), the telescopic tube (30) is inserted into the sleeve (20), and the telescopic tube (30) can move along the axial direction of the sleeve (20).

2. The nerve block needle with adjustable insertion depth according to claim 1, wherein the telescopic tube (30) comprises a plurality of telescopic sub-tubes (31) which are sleeved in sequence from top to bottom, and two adjacent telescopic sub-tubes (31) are connected in a threaded manner.

3. A nerve block needle with adjustable insertion depth according to claim 2, wherein the sum of the lengths of the plurality of said telescoping sub-tubes (31) plus the length of the cannula (20) is greater than the length of the needle body (50).

4. A nerve block needle with adjustable insertion depth according to claim 2, wherein the bottom of each telescopic sub-tube (31) is provided with a stop collar (32), and the diameter of the stop collar (32) is larger than the diameter of the telescopic sub-tube (31) adjacent to the stop collar.

5. The nerve block needle with adjustable insertion depth according to claim 4, wherein a plurality of anti-slip ribs (33) are provided on a side wall of the limit ring (32), and the plurality of anti-slip ribs (33) are provided at intervals along a circumferential direction of the limit ring (32).

6. An adjustable depth of insertion nerve block needle according to any one of claims 1-5, wherein the bellows (30) is threadably connected to the cannula (20).

7. A nerve block needle with adjustable insertion depth according to any one of claims 1-5, wherein the needle body (50) is provided with graduation marks (51), and the graduation marks (51) are arranged along the axial direction of the needle body (50).

8. The nerve block needle with adjustable insertion depth according to any one of claims 1-5, wherein a protective sleeve (40) is sleeved at one end of the telescopic tube (30) far away from the needle seat, the protective sleeve (40) is in interference connection with the telescopic tube (30), and the protective sleeve (40) is made of an elastic material.