CN210383940U

CN210383940U - Novel sampling needle with barb

Info

Publication number: CN210383940U
Application number: CN201920598431.0U
Authority: CN
Inventors: 王洪武; 刘晓森
Original assignee: Shanghai Nuobang Biotech Co ltd
Current assignee: Shanghai Nuobang Biotech Co ltd
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-04-24
Anticipated expiration: 2029-04-28

Abstract

The utility model relates to a novel take overhead kick sampling needle, including overhead kick sampling needle subassembly, metal covering, sleeve pipe, front handle, locking screw, positioning lock, back handle, probe silk cap, its characterized in that, overhead kick sampling needle subassembly comprises overhead kick sampling needle and probe silk, the syringe needle of overhead kick sampling needle is sharp arris form twice chamfer angle, the intermediate point between twice chamfer angle is as golden section point, the rear portion of syringe needle is equipped with a plurality of groups of evenly distributed ring-shaped grooves along the surface hoop; the rear parts of the groups of uniformly distributed circular grooves and the front end of the needle body of the inverted hook sampling needle are provided with an inverted hook-shaped groove. The utility model discloses a novel take overhead kick sampling needle, novel structure is unique, the reliable operation, and the overhead kick form recess of design and a plurality of ring shape recess can realize that high probability once obtains the tissue, and the length of adjustment control needle tubing, guarantees to control out needle length and fixed position at every turn when puncturing repeatedly, and control is spent.

Description

Novel sampling needle with barb

[ technical field ]

The utility model relates to a novel take barb sampling needle.

[ background art ]

When diagnosing diseases, in order to accurately find out the cause of diseases, a biopsy is required to be performed on a focus, and a doctor acquires a certain amount of living tissues from the focus by using a medical instrument to perform pathological analysis so as to perform symptomatic treatment. A common instrument in the prior art is a bullet gun type biopsy needle, which is released by an internal spring to allow the biopsy needle to take a biopsy within a lesion; when in use, various measures are taken, such as B-ultrasonic, CT and the like, the biopsy needle is guided to puncture a focus, then the spring is released, the biopsy needle rapidly punctures in the focus, if tissues are not obtained at one time, the actions are required to be repeated, and the injury probability is increased; meanwhile, because the force is formed by the spring, the depth of the biopsy needle is not easy to control, the biopsy is difficult to be carried out on the focus beside the important visceral organs, the bullet-gun type biopsy needle cannot obtain cytological specimens, the liquid focus cannot be applied, and the use is limited.

[ summary of the invention ]

The utility model aims at providing a novel take barb sampling needle novel structure, reliable operation to prior art weak point.

In order to achieve the purpose, the novel sampling needle with the inverted hook comprises an inverted hook sampling needle component, a metal sleeve, a front handle, a locking screw, a positioning lock, a rear handle and a probe wire cap, and is characterized in that the inverted hook sampling needle component consists of an inverted hook sampling needle and a probe wire, the needle head of the inverted hook sampling needle is in a sharp-edge-shaped oblique cutting angle twice, the middle point between the oblique cutting angles twice is used as a golden section point, and a plurality of groups of uniformly distributed annular grooves are annularly arranged at the rear part of the needle head along the outer surface; the rear parts of the groups of uniformly distributed circular grooves and the front end of the needle body of the inverted hook sampling needle are provided with an inverted hook-shaped groove.

The whole cladding of overhead kick sampling needle subassembly is in the sleeve pipe, and sheathed tube afterbody one end links to each other with preceding handle via the scale bar, and overhead kick sampling needle among the overhead kick sampling needle subassembly does not hold with back handle fixed, and back handle slides along the scale bar, and the length of overhead kick sampling needle is controlled then to the interval of adjustment and preceding handle to through the location lock position, guarantee to control out needle length and fixed position at every turn when puncturing repeatedly.

A small section of spring is placed at one end of the head part of the sleeve and is abutted against the barb sampling needle assembly to protect the head part of the barb sampling needle and prevent the barb sampling needle from moving back and forth in the sleeve to damage the head part of the barb sampling needle and the head part of the barb sampling needle from damaging the sleeve.

The front handle and the scale rod are screwed up by a locking screw, and the head of the screw is round.

The scale rod scale is carved with the scale that millimeter is the unit between back handle, preceding handle and the scale rod and adjusts the lock, slides on the scale rod through back handle and adjusts the flexible of overhead kick sampling needle, and length is locked by locking screw by scale control position.

The clearance between the front handle, the rear handle and the scale rod is 0.5 mm.

The barb-shaped groove is a groove with a trapezoidal section.

The positions, 4 mm away from the rear end of the needle tip, of the groups of uniformly distributed circular grooves are staggered one by one between every two adjacent groups of uniformly distributed circular grooves.

The utility model discloses a novel take overhead kick sampling needle, novel structure is unique, the reliable operation, and the overhead kick form recess of design and a plurality of ring groove can realize once obtaining the tissue of high probability, and the length of adjustment control needle tubing, guarantee to control out needle length and fixed position at every turn when puncturing repeatedly, and control is spent.

[ description of the drawings ]

Fig. 1 is a schematic structural view of a barbed sampling needle.

Fig. 2 is a schematic view of the overall structure of the present invention.

Fig. 3 is a partial view of the graduated rod scale adjustment lock.

Fig. 4 is a scale bar.

The notation in the figure is:

the probe comprises a 1-barb sampling needle assembly, 2-metal sleeves, 3 sleeves, 4-front handles, 5-locking screws, 6-positioning locks, 7-scale rods, 8-rear handles, 9-probe screw caps, 11 golden section points, 12-circular-ring-shaped grooves and 13-barb-shaped grooves.

[ detailed description of the invention ]

The technical solution of the present invention will be further described with reference to the accompanying drawings and examples, which are believed to be clear to those skilled in the art.

Example one

As shown in fig. 1-2, a novel sampling needle with a barb comprises a needle tube assembly 1, a metal sleeve 2, a sleeve 3, a front handle 4, a locking screw 5, a positioning lock 6, a rear handle 8 and a probe wire cap 9, wherein the needle tube assembly 1 is composed of a needle tube and a probe wire;

as shown in figure 1, the needle head of the needle tube is in a sharp-edge-shaped twice-chamfer angle, the middle point between the two chamfer angles is used as a golden section point 11, the total length of the two cuts is 3 mm, the length of the golden section point of the first section is approximately equal to 3 x 0.618 to 1.854, the length of the second section is approximately equal to 3-1.854 to 1.146, and the two cuts enable the needle head to be sharper and the puncture is minimum.

As shown in figure 1, a section of annular groove 12 is uniformly distributed on the surface of the needle tube 4 mm away from the needle tip along the circumferential direction. The outer surface of the needle head adopts the shape of evenly distributed annular grooves along the circumferential direction as shown in the figure. 8 needles are evenly distributed on the periphery of the outer needle.

As shown in fig. 1, a plurality of sets of uniformly distributed annular grooves are provided with a barb-shaped groove 13 at the rear part and the front end of the needle body of the barb sampling needle.

The above-mentioned part of equipment, with the whole cladding of whole needle tubing subassembly 1 in 3 intraductals of sleeve pipe, the afterbody one end of sleeve pipe 3 links to each other with preceding handle 4 via the scale bar, the needle tubing among the needle tubing subassembly 1 is not held and is fixed with back handle 8, and back handle 8 slides along the scale bar, and the length of making the needle tubing is then controlled to the interval of adjustment and preceding handle 4 to through 6 lock positions of location lock, guarantee to control out needle length and fixed position at every turn when puncturing repeatedly.

As shown in fig. 3 and 4, the gap between the front handle 4, the rear handle 8 and the graduated rod is 0.5 mm, the graduated rod adjusting lock is arranged between the rear handle 8, the front handle 4 and the graduated rod, the graduated rod scale is marked with scales with mm as a unit, the needle tube can be adjusted to stretch by sliding the rear handle on the graduated rod, and the length is locked by the locking screw 5 at the graduated control position. The front handle 4 and the graduated rod are screwed up by a locking screw, and the head of the screw is round.

Example two

On the basis of the first embodiment, in order to protect the head of the needle tube and prevent the needle tube from moving back and forth in the sleeve to damage the head of the needle tube and the head of the needle tube from damaging the sleeve, a small section of spring is placed at one end of the head of the sleeve 3 and is abutted against the needle tube assembly 1.

EXAMPLE III

On the basis of the first embodiment, the shape of the barb-shaped groove is further designed, and a groove with a trapezoidal section or other equivalent groove structures are adopted; the positions, 4 mm away from the rear end of the needle tip, of the groups of uniformly distributed circular grooves are staggered one by one between every two adjacent groups of uniformly distributed circular grooves.

Claims

1. A novel sampling needle with a barb comprises a barb sampling needle component (1), a metal sleeve (2), a sleeve (3), a front handle (4), a locking screw (5), a positioning lock (6), a rear handle (8) and a probe wire cap (9), and is characterized in that the barb sampling needle component (1) consists of the barb sampling needle and a probe wire, the needle head of the barb sampling needle is in a sharp-edge-shaped twice-oblique-cutting angle, the middle point between the two times-oblique-cutting angles is used as a golden section point, and the rear part of the needle head is annularly provided with a plurality of groups of uniformly distributed annular grooves along the outer surface; the rear parts of the groups of uniformly distributed circular grooves and the front end of the needle body of the inverted hook sampling needle are provided with an inverted hook-shaped groove.

2. The novel sampling needle with the barbs as claimed in claim 1, wherein the whole of the sampling needle assembly (1) is wrapped in the sleeve (3), one end of the tail part of the sleeve (3) is connected with the front handle (4) through a scale rod, the end of the sampling needle in the sampling needle assembly (1) is fixed with the rear handle (8), the rear handle (8) slides along the scale rod, the distance between the rear handle and the front handle (4) is adjusted to control the length of the sampling needle with the barbs, and the positioning lock (6) is used for locking, so that the length of the sampling needle with the barbs at each time can be controlled and the position can be fixed during repeated puncture.

3. The novel sampling needle with barbs as claimed in claim 2, wherein a small spring is placed at the head end of the cannula (3) to abut against the barbed sampling needle assembly (1) to protect the head of the barbed sampling needle and prevent the barbed sampling needle from moving back and forth in the cannula to damage the head of the barbed sampling needle and the head of the barbed sampling needle from damaging the cannula.

4. The novel sampling needle with the barb as claimed in claim 2, wherein the front handle (4) and the graduated rod are screwed by a locking screw, and the head of the screw is round.

5. The novel sampling needle with the barb as claimed in claim 2, wherein a graduated scale adjusting lock is arranged between the rear handle (8), the front handle (4) and the graduated rod, the graduated rod is marked with scales with millimeter as a unit, the rear handle slides on the graduated rod to adjust the extension and retraction of the sampling needle with the barb, and the length is locked by a locking screw at a scale control position.

6. The novel sampling needle with the barb as claimed in claim 3, wherein the clearance between the front handle (4), the rear handle (8) and the graduated rod is 0.5 mm.

7. The novel barbed sampling needle according to claim 1, wherein the barbed groove is a groove having a trapezoidal cross section.

8. The novel barbed sampling needle according to claim 1, wherein the plurality of groups of uniformly distributed circular grooves are located 4 mm from the rear end of the needle tip, and adjacent two groups of uniformly distributed circular grooves are arranged in a staggered manner.