CN219183866U

CN219183866U - Adjustable lymph node puncture biopsy needle

Info

Publication number: CN219183866U
Application number: CN202222865974.9U
Authority: CN
Inventors: 张健
Original assignee: Eighth Affiliated Hospital Of Guangzhou Medical University
Current assignee: Eighth Affiliated Hospital Of Guangzhou Medical University
Priority date: 2022-10-29
Filing date: 2022-10-29
Publication date: 2023-06-16
Anticipated expiration: 2032-10-29

Abstract

The utility model discloses an adjustable lymph node puncture biopsy needle which comprises a shell, wherein a needle cylinder is arranged in the shell, a pull rod matched with the needle cylinder is arranged in the needle cylinder, a screw rod is arranged on one side of the top of the shell, an internal thread sleeve is arranged on one side of the needle cylinder, and the internal thread sleeve is in threaded connection with the screw rod; compared with the prior art, the needle head and the biopsy groove are fixed in position, displacement cannot occur after firing, and the sampling position is more accurate; through pressing the clamp plate, can fire the cutting sleeve pipe and slide downwards in the outside of syringe needle to realize collecting pathological tissue, and carry out the shutoff to two sets of extremely dark biopsy grooves through the cutting sleeve pipe, in order to avoid pathological tissue to appear the seepage when puncture biopsy needle is taken out, and the accessible draws the suction that the pull rod drove its upper piston with the tissue on the extremely dark biopsy groove repeatedly suck the lumen of syringe needle in, drive and go up the cylinder and the position of syringe needle fine setting through rotating the screw rod.

Description

Adjustable lymph node puncture biopsy needle

Technical Field

The utility model relates to the technical field of lymph node aspiration biopsy, in particular to an adjustable lymph node aspiration biopsy needle.

Background

The lymph node puncture biopsy mainly aims at larger lymph nodes, has a rapid growth speed, can not exclude tuberculous lymphadenectasis or cancerous lymphadenectasis, and one histopathological examination carried out by lymphoma and the like, and is mainly operated in a mode of taking out deep tissues of the lymph nodes by using a puncture needle under the guidance of B ultrasonic or CT and carrying out pathological examination; the existing disposable biopsy gun is triggered after being close to a tumor, and a biopsy groove moves along with a needle in the triggering process, so that the accurate position of the needle biopsy groove is difficult to control due to the fact that the position of the biopsy groove is changed, and when the needle is pulled out, certain leakage can occur due to the fact that the biopsy groove is exposed, if the biopsy quantity is insufficient, secondary puncture biopsy needs to be carried out, the operation times of medical staff are increased, and the pain of a patient is increased.

Disclosure of Invention

The utility model aims to provide an adjustable lymph node puncture biopsy needle, which aims to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an adjustable lymph node puncture biopsy needle, includes the casing, the internally mounted of casing has the cylinder, the inside of cylinder is equipped with the pull rod rather than looks adaptation, one side at casing top is equipped with the screw rod, the internal thread sleeve pipe is installed to one side of cylinder, and internal thread sleeve pipe and screw rod threaded connection, the bottom of cylinder is equipped with the syringe needle, and the syringe needle extends to the outside of casing;

the top of the inner side of the shell is provided with a fixed lantern ring, the edge of the bottom of the fixed lantern ring is provided with a spring, the bottom of the spring is provided with a movable ring, one side of the bottom of the movable ring is provided with a connecting rod, the bottom of the needle cylinder is provided with a needle head, the needle head extends to the outside of the shell, the bottom of the connecting rod is provided with a cutting sleeve, and the cutting sleeve is sleeved on the outer side of the needle head;

the top of casing one side has been seted up the through-hole, the fixed axle in middle part at the inside both ends of through-hole rotates and is connected with the pressure board, and the bottom of pressure board is equipped with the fixture block.

Preferably, a handle is arranged at the top of the screw.

Preferably, the outer side of the needle is uniformly provided with scale marks for marking the position of the needle, and the bottom of one side of the needle is provided with an ultra-deep biopsy groove for collecting tissues.

Preferably, the top of the pull rod is provided with a push handle, the bottom of the pull rod is provided with a piston, and the piston on the pull rod is driven to move by pulling the push handle, so that the suction effect is realized.

Preferably, the fixed collar, the spring and the movable ring are respectively sleeved on the outer side of the needle cylinder, are not contacted with the needle cylinder, and cannot interfere with the adjustment of the position of the needle cylinder.

Preferably, a hemispherical pressing block is arranged at the top of one side of the pressing plate, and the hemispherical pressing block is pressed to drive the pressing plate to overturn, so that the moving ring, the connecting rod and the cutting sleeve are driven to perform firing movement.

Compared with the prior art, the utility model has the beneficial effects that: compared with the prior art, the adjustable lymph node puncture biopsy needle has the advantages that the positions of the needle head and the biopsy groove are fixed, displacement can not occur after firing, and the sampling position is more accurate; through pressing the clamp plate, can fire the cutting sleeve pipe and slide downwards in the outside of syringe needle to realize collecting pathological tissue, and carry out the shutoff to two sets of extremely dark biopsy grooves through the cutting sleeve pipe, in order to avoid pathological tissue to appear the seepage when puncture biopsy needle is taken out, and the accessible draws the suction that the pull rod drove its upper piston with the tissue on the extremely dark biopsy groove repeatedly suck the lumen of syringe needle in, drive and go up the cylinder and the position of syringe needle fine setting through rotating the screw rod.

Drawings

FIG. 1 is a front cross-sectional view of the present utility model;

fig. 2 is a front view of the present utility model.

In the figure: 1. a housing; 2. a needle cylinder; 3. a pull rod; 4. a screw; 5. an internally threaded sleeve; 6. a needle; 7. a fixed collar; 8. a spring; 9. a moving ring; 10. a through hole; 11. pressing the plate; 12. a connecting rod; 13. cutting the sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, embodiments of the present utility model are provided: the utility model provides an adjustable lymph node puncture biopsy needle, including casing 1, the internally mounted of casing 1 has cylinder 2, the inside of cylinder 2 is equipped with the pull rod 3 rather than looks adaptation, one side at casing 1 top is equipped with screw rod 4, the internal thread sleeve 5 is installed to one side of cylinder 2, and internal thread sleeve 5 and screw rod 4 threaded connection, the bottom of cylinder 2 is equipped with syringe needle 6, and syringe needle 6 extends to the outside of casing 1, the top of screw rod 4 is equipped with the handle, the top of pull rod 3 is equipped with the push handle, the bottom of pull rod 3 is equipped with the piston, drive the piston on it through pulling the push handle and remove, thereby realize the effect of sucking;

the top of the inner side of the shell 1 is provided with a fixed collar 7, the bottom edge of the fixed collar 7 is provided with a spring 8, the bottom of the spring 8 is provided with a movable ring 9, one side of the bottom of the movable ring 9 is provided with a connecting rod 12, the bottom of the needle cylinder 2 is provided with a needle head 6, the needle head 6 extends to the outside of the shell 1, the bottom of the connecting rod 12 is provided with a cutting sleeve 13, the cutting sleeve 13 is sleeved on the outer side of the needle head 6, the outer side of the needle head 6 is uniformly provided with scale marks for marking the position of the needle head, the bottom of one side of the needle head 6 is provided with a very deep biopsy groove for collecting tissues, and the fixed collar 7, the spring 8 and the movable ring 9 are respectively sleeved on the outer side of the needle cylinder 2 and do not contact with the needle cylinder 2, and the adjustment of the position of the needle cylinder 2 cannot cause interference;

the through hole 10 has been seted up at the top of casing 1 one side, and the fixed axle in the middle part at the inside both ends of through hole 10 rotates and is connected with pressing plate 11, and pressing plate 11's bottom is equipped with the fixture block, and pressing plate 11 one side's top is equipped with hemisphere type briquetting.

Working principle: when the puncture biopsy is used, firstly, the needle 6 is matched with the guidance of CT or B ultrasonic, the needle is close to a tumor, the tumor is inserted into a designated position, an extremely deep biopsy groove on the needle is positioned in the tumor, the pressing plate 11 is pressed to deflect the pressing plate 11 so as to relieve the limiting effect on the movable ring 9, the movable ring 9 connected with the bottom of the movable ring is driven to move downwards through the elastic potential energy of the spring 8, the connecting rod 12 is driven to move downwards through the downward movement of the movable ring 9, and the cutting sleeve 13 is driven to move downwards outside the needle 6 through the connecting rod 12, so that the tissue is cut to obtain pathology; after each time of tissue cutting, the suction of the piston on the tissue cutting device is driven by the suction rod 3 to suck the tissue on the ultra-deep biopsy groove into the lumen of the needle head 6; the screw 4 is rotated to drive the internal thread sleeve 5 and the positions of the needle cylinder 2 and the needle head 6 on the internal thread sleeve 5 to be finely adjusted.

The adjustable lymph node puncture biopsy needle is not limited to lymph node biopsy, any superficial tumor can be used, and if the needle head is lengthened under the guidance of B ultrasonic or CT, the biopsy of abdominal cavity and thoracic cavity tumor can be performed.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected" and "connected" are to be construed broadly, and may be either a fixed connection or a removable connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Claims

1. An adjustable lymph node puncture biopsy needle comprises a shell (1), and is characterized in that: the novel needle tube comprises a shell (1), and is characterized in that a needle cylinder (2) is arranged in the shell (1), a pull rod (3) matched with the needle cylinder is arranged in the needle cylinder (2), a screw rod (4) is arranged on one side of the top of the shell (1), an inner threaded sleeve (5) is arranged on one side of the needle cylinder (2), the inner threaded sleeve (5) is in threaded connection with the screw rod (4), a needle head (6) is arranged at the bottom of the needle cylinder (2), and the needle head (6) extends to the outside of the shell (1);

the needle cylinder is characterized in that a fixed collar (7) is arranged at the top of the inner side of the shell (1), a spring (8) is arranged at the edge of the bottom of the fixed collar (7), a movable ring (9) is arranged at the bottom of the spring (8), a connecting rod (12) is arranged at one side of the bottom of the movable ring (9), a needle head (6) is arranged at the bottom of the needle cylinder (2), the needle head (6) extends to the outside of the shell (1), a cutting sleeve (13) is arranged at the bottom of the connecting rod (12), and the cutting sleeve (13) is sleeved on the outer side of the needle head (6);

the top of casing (1) one side has seted up through-hole (10), the middle part dead axle at the inside both ends of through-hole (10) rotates and is connected with pressing plate (11), and pressing plate (11)'s bottom is equipped with the fixture block.

2. An adjustable lymph node aspiration biopsy needle according to claim 1, wherein: the top of the screw rod (4) is provided with a handle.

3. An adjustable lymph node aspiration biopsy needle according to claim 1, wherein: the outer side of the needle head (6) is uniformly provided with scale marks, and the bottom of one side of the needle head (6) is provided with an extremely deep biopsy groove.

4. An adjustable lymph node aspiration biopsy needle according to claim 1, wherein: the top of pull rod (3) is equipped with the pushing handle, the bottom of pull rod (3) is equipped with the piston.

5. An adjustable lymph node aspiration biopsy needle according to claim 1, wherein: the fixed lantern ring (7), the spring (8) and the movable ring (9) are respectively sleeved on the outer side of the needle cylinder (2).

6. An adjustable lymph node aspiration biopsy needle according to claim 1, wherein: the top of one side of the pressing plate (11) is provided with a hemispherical pressing block.