CN215079371U - Anesthesia puncture needle with fine adjustment function - Google Patents

Abstract

The utility model discloses an anesthesia puncture needle with fine adjustment function, which adopts the technical proposal that the anesthesia puncture needle comprises a needle tube, one end of the needle tube is a needle point, the other end of the needle tube is connected with a base in a sliding way, the base is communicated with the needle tube, and the surface of the needle tube is provided with a reflecting groove; a sliding block and an axial sliding groove are arranged between the needle tube and the base, and the sliding block slides in the sliding groove; the base is in threaded connection with a rotating cap, the rotating cap is communicated with the needle tube, and one end of the rotating cap is abutted against the needle tube to push the needle tube to move towards the direction of the needle point; an elastic piece is arranged between the needle tube and the base to enable the needle tube to have the movement trend of moving towards the rotating cap; a first baffle ring is fixed on the needle tube, a second baffle ring is fixed on the base, and the elastic piece is abutted between the first baffle ring and the second baffle ring; install the ball between first fender ring and the rotatory cap, reach and utilize the rotatory propulsion pjncture needle that can slowly of screw thread for the pjncture needle can be more accurate reach predetermined anesthesia position.

Description

Anesthesia puncture needle with fine adjustment function

Technical Field

The utility model relates to the field of medical treatment, more specifically say, it relates to an anesthesia pjncture needle with fine setting function.

Background

Anesthesia is necessary preparation before an operation, epidural anesthesia is a common anesthesia method, but in order to improve anesthesia effect, make anesthesia effect better, anesthesia speed faster, maintenance time long, success rate high, usually adopt the mode of combining epidural anesthesia and lumbar anesthesia.

When the puncture needle is used for injecting, after the puncture needle is inserted into a human body, the puncture needle needs to accurately reach a preset anesthesia position, the puncture needle does not have the capability of finely adjusting the insertion depth of the needle head, the depth of the inserted anesthesia needle in the human body is controlled by the technology of an anesthesiologist, and the situation that the needle head position of the puncture needle is inaccurate due to the fact that the force is too violent or insufficient may exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an anesthesia pjncture needle with fine setting function reaches the propulsion pjncture needle that utilizes the screw thread rotation can be slow for the pjncture needle can be more accurate reach the predetermined anesthesia position.

The above technical purpose of the present invention can be achieved by the following technical solutions:

an anesthesia puncture needle with a fine adjustment function comprises a needle tube, wherein one end of the needle tube is a needle point, the other end of the needle tube is connected with a base in a sliding manner, the base is communicated with the needle tube, and a reflection groove is formed in the surface of the needle tube; a sliding block and an axial sliding groove are arranged between the needle tube and the base, and the sliding block slides in the sliding groove; the base is in threaded connection with a rotating cap, the rotating cap is communicated with the needle tube, and one end of the rotating cap is abutted against the needle tube to push the needle tube to move towards the direction of the needle point; an elastic element which enables the needle tube and the rotating cap to keep an abutting relationship is arranged between the needle tube and the base.

By adopting the technical scheme, the needle tube can axially slide after being inserted into the base, the needle tube is clamped by the elastic piece and the rotating cap, namely when the rotating cap is screwed in, the needle tube overcomes the elasticity of the elastic piece and further moves slightly to be inserted into a human body. And because of the elastic force pushing action of the elastic piece, when the rotating cap does not rotate, the needle tube can not freely slide in the base.

Secondly, the sliding distance of the sliding block on the sliding chute is the distance that the needle tube can be inserted in a fine adjustment manner; the cooperation of spout and slider makes the needle tubing can not take place the free rotation under the drive of rotatory cap, and this effect is very important in this design, and the needle tubing is after inserting the human body, if rotatory along the axis direction of needle tubing oneself, can further enlarge the wound of puncture, and the later stage arouses the inflammation easily on the one hand, and too big wound is revealed from also easily to on the other hand narcotic.

Obviously, through the fine setting to combine the development function of reflection groove under the ultrasonic instrument, the anesthesiologist can be accurate and gentle insert the anesthesia position with the needle tubing, then, in the anesthesiologist stretched into the needle tubing with the anesthetic pipe from rotatory cap, the anesthetic flowed out accurate anesthesia position at the needle tubing, made the anesthesia effect promote by a wide margin.

Preferably, a first retaining ring is fixed on the needle tube, a second retaining ring is fixed on the base, and the elastic piece abuts against the space between the first retaining ring and the second retaining ring.

Through adopting above-mentioned technical scheme, first fender ring and second keep off the ring and contradict the elastic component to supply the anesthetic tube to wear to establish usefulness.

Preferably, the elastic member is a spring.

Through adopting above-mentioned technical scheme, the spring cavity is convenient for the narcotic tube to wear to establish.

Preferably, a ball is arranged between the interference surfaces of the needle tube and the rotating cap.

Through adopting above-mentioned technical scheme, the frictional resistance when rotatory cap reduces for the anesthesiologist controls more lightly.

Preferably, the outer side of the rotating cap is provided with a finger plate groove.

Through adopting above-mentioned technical scheme, finger board groove is used for supplying the finger embedding, and aim at anaesthetist is convenient rotatory cap more.

Preferably, the number of the finger plate grooves is 2 and the finger plate grooves are arranged on two sides of the rotating cap.

By adopting the technical scheme, screwing is easier.

Preferably, the inner wall of the reflective trough includes a plurality of mirrors.

By adopting the technical scheme, the reflection effect is good, and the ultrasonic development is clearer.

Preferably, the number of the reflectors is 3, and the included angle between adjacent reflectors ranges from 50 to 70 degrees.

By adopting the technical scheme, when the number of the reflectors is 3 and the adjacent included angle is 50-70 degrees, the ultrasonic reflection effect is better.

Preferably, the bottom of the reflective groove is a reflective bottom surface, and the bottom of the reflector is connected to the edge of the reflective bottom.

By adopting the technical scheme and the design of the reflection bottom surface, the bottom of the reflection groove is not at a sharp point but is a surface with a relatively large area, and due to the structural design, when the needle tube is punched by the punching die, the needle tube cannot be punctured by the sharp point of the punching die because the needle tube is not concentrated on one point due to excessive pressure applied to the needle tube.

Preferably, the reflective bottom surface is a flat surface.

By adopting the technical scheme, the processing of the flat surface is convenient.

Drawings

FIG. 1 is a longitudinal sectional view of the embodiment;

FIG. 2 is a schematic view showing the outer structure of the needle cannula in the embodiment;

fig. 3 is an enlarged view of a portion a in fig. 2.

In the figure:

1. a needle tube; 11. a needle tip;

2. a base;

3. rotating the cap; 31. a finger board slot;

41. a chute; 42. a slider;

51. a first retainer ring; 52. a second retainer ring; 53. an elastic member; 6. a ball bearing;

7. a reflective trough; 71. a mirror; 72. a reflective bottom surface.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In an embodiment, an anesthesia puncture needle with a fine adjustment function, referring to fig. 1 and 2, comprises a needle tube 1, wherein one end of the needle tube 1 is a needle point 11, and the end part is used for puncturing the tissue of a human body; the other end of the needle tube 1 is connected with a base 2 in a sliding way, and the base 2 is communicated with the needle tube 1. A slide block 42 and an axial sliding groove 41 are arranged between the needle tube 1 and the base 2, and the slide block 42 slides in the sliding groove 41;

the sliding chute 41 is arranged on the inner wall of the base 2, the track of the sliding chute 41 is a straight line, the number of the sliding chutes 41 is 2, and the straight line track and the axis of the needle tube 1 are arranged in parallel; the slide blocks 42 are fixed on the outer wall of the needle tube 1, the number of the slide blocks 42 is 2, and 2 slide blocks 42 are arranged at two ends of the circumference of the needle tube 1. The slider 42 linearly slides in the slide groove 41 in the axial direction, and the needle tube 1 moves in the axial direction.

The structure for driving the needle tube 1 to extend and move in the direction of the needlepoint 11 is as follows.

The base 2 is provided with the rotary cap 3 in threaded connection, the rotary cap 3, the base 2 and the needle tube 1 are linearly communicated, the rotary cap 3 and the needle tube 1 are respectively positioned at two ends of the base 2, one end part of the rotary cap 3 and the end part of the needle tube 1 are in a conflict relationship, namely, when the rotary cap 3 is screwed into the base 2, the rotary cap 3 can push the needle tube 1 to extend out, the rotary cap 3 rotates for one circle, only the stroke of one thread pitch changes, so that the extension amount of the needle tube 1 is very small, and the micro-adjustment can be realized.

And the needle tube 1 is in an interference relationship with the rotary cap 3, so that the needle tube 1 is not loosened when inserted into a human body.

In order to reduce the frictional resistance between the needle cannula 1 and the rotary cap 3, the ball 6 is mounted on the end of the needle cannula 1, and the ball 6 is abutted against the rotary cap 3, so that rolling friction is generated between the needle cannula 1 and the rotary cap 3.

The outer side of the rotating cap 3 is provided with two finger plate grooves 31, and the two finger plate grooves 31 are arranged on two sides of the rotating cap 3; the finger board slot 31 is for inserting a finger of an anesthesiologist so that the anesthesiologist rotates the finger board slot 31.

The structure for driving the needle tube 1 to move toward the base 2 is as follows.

The outer wall of the needle tube 1 is fixed with a first baffle ring 51, the base 2 is internally fixed with a second baffle ring 52, the elastic piece 53 is abutted between the first baffle ring 51 and the second baffle ring 52, the elastic piece 53 is a spring, the spring is sleeved outside the needle tube 1, and the spring is arranged in the base 2.

The spring is in a compressed state, and the end part of the needle tube 1 always props against the base 2 under the acting force of the spring.

The outer surface of the needle tube 1 is provided with a transmitting groove, and the reflecting groove 7 is arranged near the needle point 11;

referring to fig. 2 and 3, the inner wall of the reflective trough 7 includes a plurality of reflectors 71, the number of the reflectors 71 is 3, and the angle range of the included angle between adjacent reflectors 71 is 50-70 degrees; the bottom of the reflecting groove 7 is a reflecting bottom surface 72, and the bottom of the reflecting mirror 71 is connected with the edge of the reflecting bottom; the reflective bottom surface 72 is a flat surface; the emission groove enables the ultrasonic imaging to be clearer.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. An anesthesia puncture needle with fine adjustment function is characterized in that: the needle tube comprises a needle tube (1), wherein one end of the needle tube (1) is a needle point (11), the other end of the needle tube (1) is connected with a base (2) in a sliding manner, the base (2) is communicated with the needle tube (1), and a reflecting groove (7) is formed in the surface of the needle tube (1);

a sliding block (42) and an axial sliding groove (41) are arranged between the needle tube (1) and the base (2), and the sliding block (42) slides in the sliding groove (41);

the base (2) is in threaded connection with a rotating cap (3), the rotating cap (3) is communicated with the needle tube (1), and one end of the rotating cap (3) is abutted against the needle tube (1) to push the needle tube (1) to move towards the needle point (11);

an elastic part (53) which enables the needle tube (1) and the rotating cap (3) to keep abutting relation is arranged between the needle tube (1) and the base (2).

2. The anesthesia puncture needle with fine adjustment function of claim 1, wherein: a first retaining ring (51) is fixed on the needle tube (1), a second retaining ring (52) is fixed on the base (2), and the elastic piece (53) is abutted between the first retaining ring (51) and the second retaining ring (52).

3. The anesthesia puncture needle with fine adjustment function of claim 2, wherein: the elastic member (53) is a spring.

4. The anesthesia puncture needle with fine adjustment function of claim 2, wherein: a ball (6) is arranged between the contact surfaces of the needle tube (1) and the rotating cap (3).

5. The anesthesia puncture needle with fine adjustment function of claim 1, wherein: the outer side of the rotating cap (3) is provided with a finger board groove (31).

6. The anesthesia puncture needle with fine adjustment function of claim 5, wherein: the number of the finger board grooves (31) is 2 and the finger board grooves are arranged on two sides of the rotating cap (3).

7. The anesthesia puncture needle with fine adjustment function of claim 1, wherein: the inner wall of the reflection groove (7) includes a plurality of reflection mirrors (71).

8. The anesthesia puncture needle with fine adjustment function of claim 7, wherein: the number of the reflectors (71) is 3, and the included angle between adjacent reflectors (71) ranges from 50 degrees to 70 degrees.

9. The anesthesia puncture needle with fine adjustment function of claim 8, wherein: the bottom of the reflecting groove (7) is a reflecting bottom surface (72), and the bottom of the reflecting mirror (71) is connected with the edge of the reflecting bottom.

10. The anesthesia puncture needle with fine adjustment function of claim 9, wherein: the reflective bottom surface (72) is a flat surface.

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