CN209847252U

CN209847252U - Disposable endoscope ultrasonic suction biopsy needle

Info

Publication number: CN209847252U
Application number: CN201821208830.3U
Authority: CN
Inventors: 刘晓森
Original assignee: SHANGHAI NUOBANG BIOTECH CO Ltd
Current assignee: Shanghai Nuobang Biotech Co ltd
Priority date: 2018-07-28
Filing date: 2018-07-28
Publication date: 2019-12-27
Anticipated expiration: 2028-07-28

Abstract

The utility model relates to the technical field of medical equipment, specific disposable endoscope ultrasonic suction biopsy needle that says so. Including needle tubing subassembly (1), metal covering (2), sleeve pipe (3), preceding handle (4), locking screw (5), location lock (6), back handle (8), probe silk cap (9), needle tubing subassembly (1) comprises needle tubing and probe silk, needle tubing subassembly (1) whole cladding is intraductal at sleeve pipe (3), and the afterbody one end of sleeve pipe (3) links to each other with preceding handle (4) via the scale rod, and the needle tubing in needle tubing subassembly (1) is not held fixed with back handle (8), and back handle (8) slide along the scale rod, and the adjustment is followed the interval of controlling out the length of needle tubing with the interval of preceding handle (4) then to through location lock (6) lock position, guarantee control needle length and fixed position at every turn when the puncture repeatedly. The utility model relates to a disposable endoscope ultrasonic suction biopsy needle, which has novel and unique structure and reliable work.

Description

Disposable endoscope ultrasonic suction biopsy needle

Technical Field

The utility model relates to the technical field of medical equipment, specific disposable endoscope ultrasonic suction biopsy needle that says so, the inspection sample of oncology or etiology sample in the mainly used endoscope operation.

Background

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.

Disclosure of Invention

The utility model aims to provide a disposable endoscope ultrasonic suction biopsy needle with novel structure and reliable work aiming at the defects of the prior art.

In order to achieve the purpose, the disposable endoscope ultrasonic suction biopsy needle is characterized by comprising a needle tube 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, wherein the needle tube component 1 is composed of a needle tube and a probe wire, the probe wire is arranged in a needle head of the needle tube, the needle tube component 1 is wholly 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 tail end of the needle tube in the needle tube component 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 needle tube, and the positioning lock 6 is locked to ensure that the needle outlet length and the fixing position of each time are controlled during repeated puncture.

A small section of spring is placed at one end of the head part of the sleeve 3 and is abutted against the needle tube component 1 to protect the head part of the needle tube and prevent the needle tube from moving back and forth in the sleeve to damage the head part of the needle tube and the head part of the needle tube from damaging the sleeve.

The front handle 4 and the graduated rod are screwed down by a first locking screw, and the head of the screw is round.

The rear handle 8, the front handle 4 and the graduated rod are provided with a graduated scale adjusting lock, the graduated rod is marked with scales with millimeter 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 second locking screw at the graduated control position.

The needle head of the needle tube is in a sharp-edge-shaped twice-oblique-angle shape, the middle point between the two oblique-angle shapes is used as a golden section point, and the outer surface of the needle head is in a circular groove shape which is uniformly distributed along the circular direction.

The utility model relates to a disposable endoscope ultrasonic suction biopsy needle, novel structure is unique, the reliable operation, and the syringe needle of twice cutting is sharper, and is minimum in the puncture.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partial view of the graduated rod scale adjustment lock.

Figure 3 is a view of the needle.

Fig. 4 is a partial view of the outer surface of the needle of fig. 3.

Fig. 5 is a partial view of the graduated rod scale adjustment lock of fig. 2.

Description of the drawings

1. The probe comprises a needle tube assembly, 2 parts of a metal sleeve, 3 parts of a sleeve, 4 parts of a front handle, 5 parts of a locking screw, 6 parts of a positioning lock, 7 parts of a graduated rod, 8 parts of a rear handle and 9 parts of a probe screw cap.

Detailed Description

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.

As shown in figure 1, the disposable endoscope ultrasonic suction biopsy needle comprises a needle tube component 1, a metal sleeve 2, a sleeve 3, a front handle 4, a locking screw, a positioning lock 6, a rear handle 8 and a probe wire cap 9, wherein the needle tube component 1 consists of a needle tube and a probe wire, the needle heads of the probe wire and the needle tube are two parts which are independent from each other, and the probe wire is movable in the needle head;

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. 2 and 5, the clearance between front handle 4, back handle 8 and the graduated rod is 0.5 millimeter, be equipped with the location lock between back handle 8, front handle 4 and the graduated rod and include that locking screw and graduated scale adjust the lock, be carved with the scale that the millimeter is the unit on the graduated rod scale, slide on the graduated rod through back handle and adjust the flexible of needle tubing, length is locked by second locking screw by scale control position. The front handle 4 and the graduated rod are screwed down by a first locking screw, and the head of the screw is round.

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 component 1.

As shown in figure 4, the needle head of the needle tube is in a sharp-edge shape with two oblique angles, the middle point between the two oblique angles is used as a golden section point, and a section of circular groove is uniformly distributed on the surface of the needle tube 4 mm away from the needle head along the circumferential direction. In this embodiment, the total length of the two cuts is 3 mm, the first segment has a golden section point length of about 3 x 0.618=1.854, and the second segment has a length of about 3-1.854=1.146, such that the two cuts result in a sharper needle with a minimum penetration. The outer surface of the needle head adopts the shape of circular ring grooves which are uniformly distributed along the circumferential direction, and 8 needles are uniformly distributed on the circumference of the outer needle.

Claims

1. A disposable endoscope ultrasonic suction biopsy needle is characterized by comprising a needle tube 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), the needle tube component (1) is composed of a needle tube and a probe wire, the probe wire is arranged in the needle head of the needle tube, the needle tube component (1) is wholly covered in the sleeve (3), one end of the tail part of the sleeve (3) is connected with the front handle (4) through the scale rod (7), the tail end of the needle tube in the needle tube component (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 needle tube, and the positioning lock (6) is used for locking, so that the needle outlet length of each time is controlled and the position is fixed when the puncture is repeated.

2. The ultrasonic suction biopsy needle of a disposable endoscope is characterized in that a small section of spring is placed at one end of the head part of the sleeve (3) and is abutted against the needle tube assembly (1) to protect the head part of the needle tube and prevent the needle tube from moving back and forth in the sleeve to damage the head part of the needle tube and the head part of the needle tube from damaging the sleeve.

3. The disposable endoscopic ultrasound aspiration biopsy needle according to claim 1, wherein the front handle (4) and the graduated rod are screwed together by a first locking screw, and the head of the screw is round.

4. The ultrasonic suction biopsy needle of a disposable endoscope is characterized in that a graduated scale adjusting lock is arranged between the rear handle (8), the front handle (4) and a graduated rod, scales with millimeter units are marked on the graduated rod, the telescopic of the needle tube is adjusted by sliding the rear handle on the graduated rod, and the length is controlled by the scales and locked by a second locking screw.

5. The disposable endoscopic ultrasound aspiration biopsy needle of claim 4, wherein the gap between the front handle (4), the rear handle (8) and the graduated rod is 0.5 mm.

6. The ultrasonic suction biopsy needle of claim 1, wherein the needle head of the needle tube is formed with two sharp-edged bevels, the middle point between the bevels is used as a golden section point, and the outer surface of the needle head adopts annular grooves distributed uniformly in the circumferential direction.

7. The disposable endoscopic ultrasound aspiration biopsy needle of claim 6, wherein a circumferential groove is uniformly distributed on the surface of the needle cannula 4 mm from the needle tip.