CN209220347U - Puncture needle for nephrology in hospital - Google Patents

Abstract

The utility model discloses a puncture needle for nephrology in a hospital, which comprises a puncture needle body and a bracket. The bracket is provided with a sleeve and a sliding tube which are fitted with each other. One end of the sliding tube is closed and arranged in the sleeve. The spring inside the sleeve slides up and down in the sleeve, and the inner wall of the sleeve is provided with three strip-shaped grooves that are evenly distributed and parallel to the axis of the sleeve. and cooperate with it for sliding limit use, the outer wall of the sleeve is provided with a bar-shaped hole communicating with one of the bar-shaped grooves, and a connecting rod 16 connected with the bar-shaped protrusion runs through the bar-shaped hole, and the connecting rod 16 is connected with the needle body cover arranged on the upper end of the puncture needle body; the utility model realizes the limitation of the position of the slider through the suit of the sleeve and the slider, and through the cooperation of the strip hole and the scribe, and prevents the position of the slider from being damaged during the operation. , the puncture needle body shakes due to the sway of the slider, which increases the puncture pain.

Description

Puncture needle for nephrology in hospital

Technical field:

The utility model relates to a medical device, in particular to a puncture needle for the nephrology department of a hospital.

Background technique:

At present, renal puncture biopsy is an extremely effective auxiliary means for diagnosing kidney diseases in clinical nephrology. The existing renal puncture needles are mainly composed of needle body, needle handle and needle core. It is easy to fall off, and it is difficult to control the depth of the puncture during the puncture process. There are scales on the surface of the needle body, which will increase the friction of the needle body and increase the pain and discomfort of the patient during the puncture process. The current surgical operation Generally, with the assistance of an ultrasonic instrument, the puncture operation is assisted through the display screen of the ultrasonic instrument. However, due to the internal structure of ordinary puncture needles, the outline of the needle body is not easy to clearly display on the ultrasound display screen, it is difficult to distinguish the kidney and surrounding tissues, and the determination of the puncture site is inaccurate, which increases the burden on medical workers. Difficulty of work.

Utility model content:

The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art, to provide a hospital nephrology puncture device that is simple in structure, easy to carry, can control the depth of puncture when performing kidney puncture, and does not increase the friction force of the needle body. Needle.

The technical scheme of the utility model is: a puncture needle for the department of nephrology in a hospital, comprising a puncture needle body and a bracket, the bracket is provided with a sleeve and a sliding tube which are mutually fitted, and one end of the sliding tube is closed and arranged on the inside the sleeve, and slide up and down in the sleeve through the spring arranged inside the sleeve, the inner wall of the sleeve is provided with three strip-shaped grooves evenly distributed and parallel to the axis of the sleeve, the strip-shaped The groove is embedded with a strip-shaped protrusion arranged on the outer wall of the sliding cylinder, and cooperates with it for sliding limit use. The outer wall of the sleeve is provided with a strip-shaped hole communicating with one of the strip-shaped grooves. A connecting rod connected with the strip-shaped protrusion runs through the strip-shaped hole, and the connecting rod is connected with the needle body cover arranged on the upper end of the puncture needle body. A puncture tube with an open front end is provided inside, and an air blind tube with both ends closed is provided outside the puncture tube.

The outer wall of the sliding cylinder is provided with a scale, and the sleeve is provided with two operating handles on the same horizontal line, and the cross-sections of the strip-shaped groove and the strip-shaped protrusion are both rectangular.

The support vertically corresponding to the puncture needle body is provided with a through hole for the puncture needle body to pass through for puncture, and the support is made of transparent material and has an arc-shaped structure. The sleeve is arranged on the bracket through a buckle.

The beneficial effects of the utility model are:

1. The utility model realizes the limitation of the position of the slider through the combination of the sleeve and the slider, and through the cooperation of the strip groove and the strip hole, so as to prevent the puncture needle from being driven by the shaking of the slider during operation. Shaking increases puncture pain.

2. There are two operating handles on the sleeve of the utility model, which are on the same horizontal line. The personnel put their fingers on the operating handles and put their thumbs on the sealing end of the sliding tube. The spring is compressed, and the sliding cylinder drives the scribing piece and the puncture needle body to move to realize the puncture operation.

3. Three strip-shaped grooves are evenly arranged on the inner wall of the sleeve of the utility model, and the strip-shaped protrusions connected with the sliding cylinder are arranged in the strip-shaped grooves, and the strip-shaped protrusions are limited by the strip-shaped grooves. Realize the limit of the slider (the slider is set in the sleeve, and the sleeve itself limits the slider), the three bar-shaped grooves are evenly arranged in a triangle, and the force is stable, ensuring that the slider in motion does not move shaking.

4. A scale is provided on the outer wall of the slider of the utility model. When the slider moves, the top of the sleeve corresponds to the scale, and the measurement of the moving distance of the slider can be realized through the corresponding value between the top of the sleeve and the scale.

5. One end of the sliding sleeve of the utility model is closed, and the spring provided in it is arranged at the bottom of the sleeve, so that the puncture needle can be reset along with the sliding sleeve.

6. The bracket of the utility model is made of transparent material, people can observe the situation of the puncture site through the bracket, and at the same time, it is convenient to determine the puncture site when placing the bracket.

Description of drawings:

Fig. 1 is the front view of the puncture needle used in the nephrology department of the hospital.

Fig. 2 is a top view of the puncture needle used in the nephrology department of the hospital.

Fig. 3 is a sectional view of the puncture needle used in the nephrology department of the hospital.

Fig. 4 is a schematic diagram of the structure of the puncture needle.

Detailed ways:

Embodiment: See Fig. 1, Fig. 2, Fig. 3 and Fig. 4, in the figure, 1-puncture needle body, 2-support, 3-sleeve, 4-slider, 5-spring, 6-bar-shaped groove, 7-bar protrusion, 8-needle body cover, 9-needle, 10-puncture tube, 11-air blind tube, 12-operating handle, 13-buckle, 14-through hole, 15-bar hole, 16 -Connecting rod.

The puncture needle used in the nephrology department of the hospital includes a puncture needle body 1 and a bracket 2. The bracket 2 is provided with a sleeve 3 and a sliding sleeve 4 that are mutually fitted. One end of the sliding sleeve 4 is closed and set in the sleeve 3, and is set The spring 5 inside the sleeve 3 slides up and down in the sleeve 3, and the inner wall of the sleeve 3 is provided with three strip-shaped grooves 6 that are evenly distributed and parallel to the axis of the sleeve 3, and the strip-shaped grooves 6 are embedded with sliding The strip-shaped protrusion 7 on the outer wall of the cylinder 4 cooperates with it for sliding and limiting use. The outer wall of the sleeve 3 is provided with a strip-shaped hole 15 communicating with one of the strip-shaped grooves 6. The strip-shaped hole 15 runs through The connecting rod 16 connected with the bar-shaped protrusion 7, the connecting rod 16 is connected with the needle body cover 8 arranged on the upper end of the puncture needle body 1, the front end of the puncture needle body 1 is provided with a needle head 9, and the inside of the puncture needle body 1 is provided with a front opening. The puncture tube 10 is provided with an air blind tube 11 with both ends closed.

Scales are provided on the outer wall of the sliding cylinder 4, two operating handles 12 on the same horizontal line are provided on the sleeve 3, and the cross sections of the bar-shaped groove 6 and the bar-shaped protrusion 7 are both rectangular.

The support 2 vertically corresponding to the puncture needle 1 is provided with a through hole 14 for the puncture needle 1 to pass through for puncturing. The support 2 is made of transparent material and has an arc-shaped structure. The sleeve 3 is set on the bracket 2 through the buckle 13

When in use, the bracket 2 is placed on the patient's body, and the puncture site is confirmed through the transparent bracket 2, and the bracket 2 is adjusted so that the position through hole 14 on the bracket 2 corresponds to the puncture site, and the personnel's fingers are placed on the operating handle 12 Put the thumb on the sealing end of the slider 4, and the movement of the slider 4 in the sleeve 3 is realized through the force of the fingers and the thumb (the spring 5 is compressed during the movement, which is convenient for the subsequent reset operation). The protrusion 7 and the puncture needle body 1 move along with the sliding cylinder 4, and the bar-shaped protrusion 7 moves in the bar-shaped groove 6, and through the cooperation of the sleeve 3 and the scale (the scale corresponding to the original position of the top of the sleeve 3, and The corresponding scale when the slider 4 moves, there is a scale difference between the two scales, the scale difference is the movement scale of the slider 4 or the puncture depth of the puncture needle 1) to measure the puncture depth, the puncture needle 1 passes through the bar-shaped protrusion 7 The connected connecting rod 16 applies the piercing force.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model, All still belong to within the scope of the technical solution of the utility model.

Claims (4)

1. a kind of Nephrology dept., hospital puncture needle, including needle body and bracket are punctured, it is characterized in that: being provided on the bracket mutually The sleeve and slide cartridge of suit, the slide cartridge is closed at one end and is arranged in the sleeve, and by being arranged in the sleeve inner Spring slided up and down in sleeve, three are provided on the sleeve lining and is uniformly distributed and parallel with sleeve axis Strip groove, the strip groove are embedded with the strip bulge being arranged on the slide cartridge outer wall, and matched are slided Limit uses, and is provided with the strip-shaped hole being connected to one of strip groove on the sleeve outer wall, runs through in the strip-shaped hole There is the connecting rod connecting with the strip bulge, the connecting rod is connect with the needle body lid for puncturing needle body upper end is arranged in, described It punctures needle body front end and is equipped with syringe needle, the puncture tube of front opening is equipped with inside puncture needle body, puncture tube is externally provided with closed at both ends Air blind pipe.

2. Nephrology dept., hospital according to claim 1 puncture needle, it is characterized in that: being provided with quarter on the outer wall of the slide cartridge It spends, two operation handles in the same horizontal line, the section of the strip groove and strip bulge is provided on the sleeve It is rectangle.

3. Nephrology dept., hospital according to claim 1 puncture needle, it is characterized in that: the puncture needle body corresponding branch vertically It is provided on frame and passes through the through-hole punctured for puncturing needle body, bracket is transparent material, and is arcuate structure.

4. Nephrology dept., hospital according to claim 1 puncture needle, it is characterized in that: the sleeve is being propped up by buckling setting On frame.