CN214907344U

CN214907344U - Puncture needle for oncology department

Info

Publication number: CN214907344U
Application number: CN202020796993.9U
Authority: CN
Inventors: 周文献; 任书兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2021-11-30
Anticipated expiration: 2030-05-13

Abstract

The utility model discloses a pjncture needle that oncology used, set up the puncture needle tubing, the negative pressure box of detachable setting on the extraction opening of sampling tube side and the slip setting at the inside cutting mechanism of sampling tube of sample connection including sampling tube, detachably setting at sampling tube front end and surface. The utility model discloses a junction at negative pressure box and sampling tube is provided with the elastic membrane, prevents that human tissue and blood from getting into and polluting air exhaust device, has solved prior art's air exhaust device and has easily received human tissue or blood pollution's problem.

Description

Puncture needle for oncology department

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a puncture needle for oncology department.

Background

The tumor seriously threatens the life and health of human beings, the determination of preoperative diagnosis results is related to the determination of an operation scheme, and in medical clinical work, a pathological specimen is usually required to be obtained by puncturing, and pathological diagnosis is made through the examination of the pathological specimen. In the sampling process of the existing puncture sampling equipment, human tissues or blood in a sampling tube easily enter an air extractor, so that the air extractor is polluted.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a pjncture needle that oncology used, through be provided with the elastic membrane in the junction of negative pressure box and sampling tube, can prevent that human tissue and blood from getting into and polluting air exhaust device, solved prior art's air exhaust device and easily received the problem of human tissue or blood pollution.

The utility model discloses a embody through following technical scheme: the utility model provides a pjncture needle that oncology used, including the sampling tube, detachably sets up the puncture needle tubing of having seted up the sample connection on sampling tube front end and surface, detachable sets up the negative pressure box on the extraction opening of sampling tube side and slides and set up at the inside cutting mechanism of sampling tube, the extraction opening department of sampling tube side is provided with the elastic membrane, cutting mechanism includes that slidable sets up the handle of a knife of being convenient for in the bottom outside operation cutting knife of sampling tube at the lower extreme of cutting knife and the cutting knife of the inner chamber of sampling tube and puncture needle tubing and detachable setting.

Further, the cutting knife comprises a knife bar and a connecting block which is arranged at the top end of the knife bar and used for connecting the blade, and the lower end of the knife bar extends out of the lower end of the sampling tube and is detachably connected with the knife handle; the cutter bar, the blade and the connecting block are all made of stainless steel.

Furthermore, the blade is a cylindrical blade, the top end of the blade is connected with the cutter bar through a connecting block, the lower end of the blade is provided with a cutting edge, and the outer wall of the blade is connected with the inner wall of the puncture needle tube in a sliding manner.

Furthermore, the puncture needle tube comprises a needle head, a needle tube and a connecting disc which are integrally arranged, the needle head is arranged at the top end of the needle tube, the connecting disc is arranged on the outer wall of the lower end of the needle tube, and a sampling port is arranged on the outer wall of one side of the upper portion of the needle tube.

Furthermore, the sampling tube is a cylinder with an opening at the upper end, the outer wall of the upper part of the sampling tube is provided with a first external thread for connecting the puncture needle tube through a threaded sleeve, the top end of the sampling tube is provided with a first sealing ring groove for placing a first sealing ring conveniently, the middle part of one side of the sampling tube is provided with an air exhaust port, and the bottom of the lower end of the sampling tube is provided with a rod hole for a cutter rod of a cutter to penetrate conveniently; the inner wall of the rod hole is provided with a second sealing ring groove which is convenient for placing a second sealing ring.

Further, an air exhaust nozzle is arranged at the air exhaust port of the sampling tube, and a connecting part for connecting the elastic membrane and a first external thread for connecting the negative pressure box are arranged on the outer wall of the air exhaust nozzle from outside to inside; the outer wall of the connecting part is provided with a plurality of annular grooves with triangular sections.

Furthermore, the negative pressure box comprises a box body, an air exhaust joint and a pipe joint, wherein the box body is integrally arranged, the air exhaust joint is arranged on one side of the box body, and the pipe joint is arranged on the other side of the box body and is connected with an air exhaust nozzle.

Furthermore, the inside of coupling is provided with the clamping ring that is used for compressing tightly the elastic membrane, and the clamping ring is provided with the cushion near the elastic membrane side.

The beneficial effects of the utility model reside in that: the elastic membrane is arranged at the joint of the negative pressure box and the sampling tube, so that human tissues and blood can be prevented from entering and polluting the air extractor, and the problem that the air extractor in the prior art is easily polluted by the human tissues or the blood is solved; meanwhile, the negative pressure box is convenient to reuse, and the use cost is saved; the cutting knife is made of stainless steel, and is convenient to disassemble and recycle after disinfection.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of the cutting mechanism of the present invention;

FIG. 3 is a schematic structural view of the negative pressure box of the sampling tube of the present invention when the sampling tube is not under negative pressure;

FIG. 4 is a schematic structural view of the negative pressure box of the sampling tube of the present invention;

fig. 5 is a schematic structural view of the junction between the sampling tube and the puncture needle tube of the present invention.

In the figure: 1. the device comprises a sampling tube, 2, a puncture needle tube, 3, a cutting mechanism, 4, a negative pressure box, 5, an elastic membrane, 11, an air suction nozzle, 31, a knife handle, 32, a knife rod, 33, a connecting block, 34 and a blade.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a puncture needle for oncology department comprises a sampling tube 1, a puncture needle tube 2 detachably arranged at the front end of the sampling tube 1 and provided with a sampling opening on the surface, a negative pressure box 4 detachably arranged on an air exhaust opening on the side surface of the sampling tube 1 and a cutting mechanism 3 arranged in the sampling tube 1 in a sliding manner, wherein the air exhaust opening on the side surface of the sampling tube 1 is provided with an elastic membrane 5, and the cutting mechanism 3 comprises a cutting knife which is slidably arranged in the inner cavities of the sampling tube 1 and the puncture needle tube 2 and a knife handle 31 which is detachably arranged at the lower end of the cutting knife and is convenient for operating the cutting knife outside the bottom of the sampling tube 1; the negative pressure box can make the sample connection of puncture needle tubing produce the negative pressure and inhale the pjncture needle intraduct with sample tissue, then pulls cutting mechanism, cuts off sample tissue through the cutter on it, and wherein the setting of elastic membrane can be when guaranteeing to make the interior negative pressure of formation of sampling tube, can also separate sampling tube and negative pressure box, prevents that human tissue and blood from getting into and polluting the negative pressure box.

In this embodiment, the cutting knife includes a knife bar 32 and a connecting block 33 arranged at the top end of the knife bar 32 and used for connecting a blade 34, and the lower end of the knife bar 32 extends out of the lower end of the sampling tube 1 and is detachably connected with the knife handle 31; the cutter bar, the blade and the connecting block are all made of stainless steel; after the tissue sampling is finished, the knife handle can be detached to take out the knife rod and the knife blade for cleaning, disinfection and sterilization.

In this embodiment, the blade 34 is a cylindrical blade 34, the top end of the blade 34 is connected with the cutter bar 32 through the connecting block 33, the lower end of the blade is provided with a cutting edge, and the outer wall of the blade 34 is connected with the inner wall of the puncture needle tube 2 in a sliding manner; the cutting edge of the blade is tightly attached to the inner wall of the puncture needle tube, so that the sample tissue of the tumor can be cut off quickly.

In the embodiment, the puncture needle tube 2 comprises a needle head, a needle tube and a connecting disc which are integrally arranged, the needle head is arranged at the top end of the needle tube, the connecting disc is arranged on the outer wall of the lower end of the needle tube, and a sampling port is arranged on the outer wall of one side of the upper part of the needle tube; the sample tissue of the tumor is sucked in through the sampling port under negative pressure to wait for the cutting mechanism to cut the tissue.

In this embodiment, the sampling tube 1 is a cylinder with an opening at the upper end, the outer wall of the upper part of the sampling tube 1 is provided with a first external thread for connecting a puncture needle tube through a threaded sleeve, the top end of the sampling tube is provided with a first sealing ring groove for placing a first sealing ring conveniently, the middle part of one side of the sampling tube is provided with an air suction port, and the bottom of the lower end of the sampling tube is provided with a rod hole for a cutter rod 32 of a cutter to penetrate conveniently; the inner wall of the rod hole is provided with a second sealing ring groove for placing a second sealing ring conveniently; when the puncture needle tube is disassembled and assembled, the thread sleeve is screwed on or out, so that the puncture needle tube can be fixed or replaced, and the first sealing ring and the second sealing ring are arranged to ensure the air tightness of the whole sampling device.

In this embodiment, the air suction nozzle 11 is arranged at the air suction opening of the sampling tube 1, and the outer wall of the air suction nozzle is provided with a connecting part for connecting the elastic membrane 5 and a first external thread for connecting the negative pressure box from outside to inside; the outer wall of the connecting part is provided with a plurality of annular grooves with triangular sections; the annular groove can prevent the elastic membrane from sliding off when the elastic membrane is sleeved on the air exhaust nozzle.

In this embodiment, the negative pressure box 4 comprises a box body, an air extraction joint and a pipe joint, wherein the box body is integrally arranged, the air extraction joint is arranged on one side of the box body, and the pipe joint is arranged on the other side of the box body and is connected with the air extraction nozzle 11; the air pumping joint is connected with an air pump or an air pumping cylinder so as to pump the negative pressure box to the negative pressure.

In the embodiment, a pressing ring for pressing the elastic membrane 5 is arranged in the pipe joint, and an elastic pad is arranged on the side, close to the elastic membrane 5, of the pressing ring; the elastic cushion can prevent the pressing ring from being in hard contact with the elastic membrane to cause the damage of the elastic membrane.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a pjncture needle that oncology used, sets up including sampling tube, detachably the puncture needle tubing, the detachable setting that the sample connection was seted up on sampling tube front end and surface are in negative pressure box and the slip setting of the extraction opening of sampling tube side are at the inside cutting mechanism of sampling tube, a serial communication port, the extraction opening department of sampling tube side is provided with flexible membrane, cutting mechanism includes that slidable sets up the cutting knife and the detachable setting of the inner chamber of sampling tube and puncture needle tubing are in the lower extreme of cutting knife is convenient for the handle of a knife of the bottom outside operation cutting knife of sampling tube.

2. The puncture needle for the oncology department according to claim 1, wherein the cutting knife comprises a knife bar and a connecting block which is arranged at the top end of the knife bar and is used for connecting a knife blade, and the lower end of the knife bar extends out of the lower end of the sampling tube and is detachably connected with the knife handle; the cutter bar, the blade and the connecting block are all made of stainless steel.

3. The puncture needle for oncology department according to claim 2, wherein the blade is a cylindrical blade, the top end of the blade is connected with the cutter bar through a connecting block, the lower end of the blade is provided with a blade edge, and the outer wall of the blade is connected with the inner wall of the puncture needle tube in a sliding way.

4. The puncture needle for oncology department according to claim 1, wherein the puncture needle tube comprises a needle head, a needle tube and a connecting disc which are integrally arranged, the needle head is arranged at the top end of the needle tube, the connecting disc is arranged on the outer wall of the lower end of the needle tube, and the sampling port is arranged on the outer wall of one side of the upper part of the needle tube.

5. The puncture needle for oncology department according to claim 1, wherein the sampling tube is a cylinder with an open upper end, the outer wall of the upper part of the sampling tube is provided with a first external thread for connecting the puncture needle tube through a threaded sleeve, the top end of the sampling tube is provided with a first sealing ring groove for placing a first sealing ring, the middle part of one side of the sampling tube is provided with the suction opening, and the bottom of the lower end of the sampling tube is provided with a rod hole for the cutter rod of the cutting knife to pass through; and a second sealing ring groove convenient for placing a second sealing ring is arranged on the inner wall of the rod hole.

6. The puncture needle for oncology department according to claim 1, wherein the suction opening of the sampling tube is provided with a suction nozzle, and the outer wall of the suction nozzle is provided with a connecting part for connecting the elastic membrane and a first external thread for connecting the negative pressure box from outside to inside; the outer wall of connecting portion is provided with the annular channel that the multichannel cross-section is triangle-shaped.

7. The puncture needle for oncology department according to claim 6, wherein the negative pressure box comprises an integrally arranged box body, a suction connector arranged at one side of the box body and a pipe connector arranged at the other side of the box body and connected with the suction nozzle.

8. The puncture needle for oncology department according to claim 7, wherein the pipe joint is internally provided with a pressing ring for pressing the elastic membrane, and the pressing ring is provided with an elastic pad at the side close to the elastic membrane.