CN213129792U

CN213129792U - Bullet-type puncture needle for ultrasonic endoscopic biopsy

Info

Publication number: CN213129792U
Application number: CN202021383101.9U
Authority: CN
Inventors: 肖斌; 陈国胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-05-07
Anticipated expiration: 2030-07-14

Abstract

The utility model relates to an supersound scope biopsy is with bullet type pjncture needle, including operating handle, the outer tube, inner tube and syringe needle, the outer tube rear end links firmly with the preceding terminal surface of operating handle, but the inner tube is established at the intraductal axial displacement of outer tube, the syringe needle is fixed at the inner tube front end and can be stretched out the outer tube front end along with the inner tube antedisplacement, it is equipped with the boosting pipe of being connected with the inner tube rear end to stretch into in the operating handle to slide, but the boosting pipe outer wall links firmly axial displacement's control button, be equipped with the spring between control button and the operating handle rear end inner wall, the operating handle rear end is equipped with through pressing the button of pressing and catching. The utility model discloses convenient operation, its puncture action each time, all the accessible is pressed button action and spring force and is promoted the inner tube and remove for the operator only need calculate the position, the direction and the degree of depth of puncture, can adjust the puncture direction accurately, and needn't consider the influence that the drive force caused to follow-up puncture.

Description

Bullet-type puncture needle for ultrasonic endoscopic biopsy

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to an supersound scope is bullet type pjncture needle for biopsy.

Background

Endoscopic ultrasound-guided paracentesis is a technique for performing paracentesis on gastrointestinal tracts or surrounding tissue organs under the guidance of endoscopic ultrasound, and the purpose of operation is to obtain cells or perform histopathological examination or introduce medicines or instruments into target organs or tissues for treatment.

The clinical diagnosis under the guidance of the ultrasonic endoscope mainly comprises fine needle aspiration biopsy under the guidance of the EUS-FNA ultrasonic endoscope and fine needle aspiration biopsy under the guidance of the EUS-FNB ultrasonic endoscope. Due to the difference of the structures of the internal and external puncture needles, the theme core bar of the puncture needle under the endoscope is a plastic piece, and the rigid conduction during puncture cannot be compared with the surgical short straight type all-metal puncture needle. The traditional ultrasonic endoscope puncture needle structure generally adopts a cutting type and a suction type, so that the amount and the positive rate of pathological samples obtained by ultrasonic puncture under an endoscope are low; meanwhile, when the existing endoscopic ultrasonic puncture needle is used for puncture, the details such as strength, direction and the like are completely mastered by the personal experience of an operator.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: in order to overcome the defects in the prior art, the utility model provides a bullet-type puncture needle for ultrasonic endoscope biopsy, which is convenient to operate and control the puncture direction and force.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an supersound scope biopsy is with bullet type pjncture needle, includes operating handle, outer tube, inner tube and syringe needle, and the outer tube rear end links firmly with the preceding terminal surface of operating handle, but the inner tube is established at the intraductal axial displacement of outer tube, and the syringe needle is fixed at the inner tube front end and can be followed the inner tube antedisplacement and stretch out the outer tube front end, operating handle in slide and be equipped with the boosting pipe of being connected with the inner tube rear end in stretching into the outer tube, but the boosting pipe outer wall links firmly axial displacement's control button, is equipped with the spring between control button and the operating handle rear end inner wall, the operating handle rear end is equipped with and catches on or throw off control button's the button of pressing.

Specifically speaking, operating handle in seted up the spout, control button slides and establishes in the spout, the spring is established in the spout and the front and back end respectively with control button and operating handle rear end inner wall connection, control button has down gib head down, press the button and have the last gib head of catching on or breaking away from lower gib head after pressing up.

Furthermore, a negative pressure suction hole which can be communicated with the needle head at the front end of the inner tube is arranged in the puncture needle handle.

The utility model has the advantages that: the utility model discloses convenient operation, its puncture action each time can all promote the inner tube through pressing button action and spring force and remove for the operation operator only needs calculate the position, the direction and the degree of depth of puncture, can adjust the puncture direction accurately, and needn't consider the influence that the driving force caused follow-up puncture.

Drawings

The present invention will be further described with reference to the accompanying drawings and embodiments.

Fig. 1 is a schematic view of the state of the present invention before puncturing.

Fig. 2 is a schematic view of the state of the present invention during puncturing.

In the figure: 1. the vacuum suction device comprises an operating handle, 1-1 parts of a sliding groove, 2 parts of an outer pipe, 3 parts of an inner pipe, 4 parts of a needle head, 5 parts of a boosting pipe, 6 parts of a control button, 6-1 parts of a lower hook head, 7 parts of a spring, 8 parts of a press button, 8-1 parts of the lower hook head, 9 parts of a puncture needle handle and 9-1 parts of a negative pressure suction hole.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

As shown in fig. 1 and 2, the ejection type puncture needle for ultrasonic endoscope biopsy comprises an operating handle 1, an outer tube 2, an inner tube 3 and a needle head 4, wherein the rear end of the outer tube 2 is fixedly connected with the front end face of the operating handle 1, the inner tube 3 is arranged in the outer tube 2 and can axially move, and the needle head 4 is fixed at the front end of the inner tube 3 and can move forwards along with the inner tube 3 and extend out of the front end of the outer tube 2.

The operating handle 1 is internally provided with a boosting tube 5 which extends into the outer tube 2 and is connected with the rear end of the inner tube 3 in a sliding way, the rear end of the boosting tube 5 is connected with a puncture needle handle 9, the end part of the puncture needle handle 9 is provided with a negative pressure suction hole 9-1 which can be communicated with a needle head 4 at the front end of the inner tube 3, and the negative pressure suction hole 9-1 can also be penetrated with a guide wire.

The inner part of the operating handle 1, which is positioned on the upper half part of the axis, is provided with a chute 1-1, the chute 1-1 is internally provided with a control button 6 capable of moving axially, the bottom of the control button 6 is fixedly connected with the outer wall of the boosting pipe 5, a spring 7 is arranged between the control button 6 and the inner wall of the rear end of the operating handle 1, the front end of the spring 7 is connected with the control button 6, and the rear end of the spring 7 is connected with the inner wall of the rear end of the operating handle 1.

The rear end of the operating handle 1 is provided with a press button 8, the control button 6 is provided with a downward lower hook head 6-1, and the press button 8 is provided with an upward upper hook head 8-1 which hooks or disengages the lower hook head 6-1 after being pressed.

The utility model relates to a puncture needle with ejection structure, when in use, an operator presses a press button 8 like pressing a mouse to separate an upper hook head 8-1 from a lower hook head 6-1, and a control button 6 moves forward to drive a boosting tube 5 to move forward under the action of a spring 7, thereby pushing an inner tube 3 to move, and a needle head 4 extends out of the front end of an outer tube 2 to complete puncture operation; the control button 6 is pulled back, the upper hook head 8-1 and the lower hook head 6-1 are hooked again, and the needle head returns to the outer tube 2.

The utility model discloses convenient operation, its puncture action each time can all promote inner tube 3 to remove through pressing button 8 action and spring 7 effort for the operation operator only needs calculate the position, the direction and the degree of depth of puncture, can adjust the puncture direction accurately, and needn't consider the influence that the drive force caused follow-up puncture.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides an supersound scope biopsy is with bullet type pjncture needle, includes operating handle (1), outer tube (2), inner tube (3) and syringe needle (4), and the terminal surface links firmly before outer tube (2) rear end and operating handle (1), but inner tube (3) establish axial displacement in outer tube (2), but syringe needle (4) are fixed at inner tube (3) front end and can be along with inner tube (3) antedisplacement stretch out outer tube (2) front end, characterized by: operating handle (1) in slide and be equipped with the boosting pipe (5) of being connected with inner tube (3) rear end in stretching into outer tube (2), boosting pipe (5) outer wall links firmly but axial displacement's control button (6), be equipped with spring (7) between control button (6) and operating handle (1) rear end inner wall, operating handle (1) rear end is equipped with presses button (8) through pressing and colluding or throw off control button (6), boosting pipe (5) rear end is connected with pjncture needle handle (9).

2. The bullet-type puncture needle for endoultrasound biopsy according to claim 1, wherein: the novel multifunctional electric water heater is characterized in that a sliding groove (1-1) is formed in the operating handle (1), the control button (6) is arranged in the sliding groove (1-1) in a sliding mode, the spring (7) is arranged in the sliding groove (1-1), the front end and the rear end of the spring are connected with the control button (6) and the inner wall of the rear end of the operating handle (1) respectively, the control button (6) is provided with a downward hook head (6-1), and the press button (8) is provided with an upward upper hook head (8-1) which can hook or separate the lower hook head (6-1) after being pressed.

3. The bullet-type puncture needle for endoultrasound biopsy according to claim 1, wherein: the puncture needle handle (9) is internally provided with a negative pressure suction hole (9-1) which can be communicated with the needle head (4) at the front end of the inner tube (3).