CN209916138U

CN209916138U - Tumor biopsy puncture needle with sampling function

Info

Publication number: CN209916138U
Application number: CN201821583365.1U
Authority: CN
Inventors: 丁文彬
Original assignee: Nantong First Peoples Hospital
Current assignee: Nantong First Peoples Hospital
Priority date: 2018-09-27
Filing date: 2018-09-27
Publication date: 2020-01-10
Anticipated expiration: 2028-09-27

Abstract

The utility model belongs to the technical field of the pjncture needle technique and specifically relates to a tumour biopsy pjncture needle with sample function, including hollow needle, the rule is equipped with a plurality of collecting liquid holes on the lateral surface of hollow needle lower extreme, and the bottom of hollow needle is equipped with the needle point, and the top of hollow needle is equipped with the collecting liquid pipe. The utility model has the advantages of reasonable structure, the operation is thus simple, use the pjncture needle to replace biopsy forceps to come to carry out the biopsy operation to the tumour, effectively solved and used biopsy forceps to carry out biopsy sampling can cause great wound and the great problem of present biopsy puncture to the limitation of tumour sample, only can leave less wound to patient's skin and tumour during the use, the trouble that the later stage must carry out careful processing has been saved, avoid malignant tumor to spread the problem that can lead to patient's state of an illness aggravation, and can gather the tissue of different aspect in the tumour simultaneously, with the degree of accuracy that improves the biopsy, help the doctor to carry out accurate judgement to patient's state of an illness.

Description

Tumor biopsy puncture needle with sampling function

Technical Field

The utility model relates to a pjncture needle technical field specifically is a tumour biopsy pjncture needle with sample function.

Background

A puncture needle is a metal needle used to puncture the skin during interventional radiology procedures to further guide interventional radiology equipment (guidewires, catheters, filters, stents, etc.) into the body for vascular and non-vascular interventional procedures. The medical puncture needle is mainly applied to minimally invasive surgery, the puncture needle is combined with other medical equipment for use, the focus can be directly reached, accurate positioning, accurate detection and accurate treatment are achieved, the wound is small, complications are few, the physical and psychological pain of a patient is relieved, and the medical puncture needle is an essential medical instrument in a hospital.

Biopsy for biopsy, surgical pathology, and external examination are techniques for taking pathological tissues from patients by cutting, clamping, or puncturing, as needed for diagnosis and treatment. This is the most important part of the diagnosis of pathology, and a clear histopathological diagnosis can be made for the vast majority of examined cases, as a clinical final diagnosis.

The biopsy needle has very important significance in tumor diagnosis, the existing tumor biopsy mode generally adopts biopsy forceps to cut a tumor for biopsy, but the wound of the biopsy sampling mode is large, the incision needs to be carefully treated in the later stage to prevent malignant tumor from spreading, in addition, when the existing biopsy needle is used for pathological sampling of the tumor, only the tissue at the needle point can be sampled, and the spreading condition of the tumor cannot be accurately checked.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tumour biopsy pjncture needle with sample function to the use biopsy forceps who proposes in solving above-mentioned background art carries out the biopsy sampling and can cause great wound and the great problem of limitation of current biopsy puncture to the tumour sample.

In order to achieve the above object, the utility model provides a following technical scheme:

a tumor biopsy puncture needle with a sampling function comprises a hollow needle, wherein a plurality of liquid collecting holes are regularly formed in the outer side surface of the lower end of the hollow needle, a needle point is arranged at the bottom end of the hollow needle, a liquid collecting pipe is arranged at the top end of the hollow needle, a push rod is arranged in the liquid collecting pipe, a push block is arranged at the bottom end of the push rod, a rubber plug is arranged at the lower end of the push block, and a limiting block is arranged at the top end of the push rod;

a sleeve is sleeved on the outer side of the hollow needle, a plurality of collecting cavities are arranged on the outer side surface of the sleeve at equal intervals, a tissue scraper is arranged on one side of each collecting cavity, and an oblique joint surface is arranged at the bottom end of the sleeve;

the outer side cover of collector tube is equipped with the needle file, be equipped with on the lateral surface of needle file and get a volume viewing aperture.

Preferably, the hollow needle is of a hollow structure, the needle point is of a solid structure, and the hollow needle and the needle point are of an integrally formed structure.

Preferably, the top end of the hollow needle is fixedly adhered to the bottom end of the liquid collecting pipe, and the hollow needle is communicated with the liquid collecting pipe.

Preferably, the push rod, the ejector pad and the limiting block are of an integrally formed structure, and the rubber plug is fixed on the bottom surface of the ejector pad in an adhesion manner.

Preferably, the diameter of the top end of the rubber plug is equal to the inner diameter of the liquid collecting pipe, and the diameter of the push block is smaller than or equal to the diameter of the top end of the rubber plug.

Preferably, the inner side wall of the sleeve and the outer side wall of the hollow needle are welded in a seamless mode.

Preferably, the bottom end of the tissue scraper is welded and fixed on the wall of one side cavity of the collection cavity, and the top end of the tissue scraper extends out of the collection cavity.

Preferably, the hollow needle penetrates through the bottom wall of the needle seat, and the outer wall of the top end of the hollow needle is fixedly adhered to the needle seat.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model is provided with the hollow needle, the outer side surface of the lower end of the hollow needle is provided with a plurality of liquid collecting holes, the upper end of the hollow needle is provided with the liquid collecting tube, and the tissue fluid in the tumor can be sucked up through the piston rod in the liquid collecting tube so as to collect the liquid pathology in the tumor;

2. the utility model discloses a set up the sleeve pipe in the outside of hollow needle, the equidistance sets up a plurality of collection chambeies on the sleeve pipe, and one side of collecting the chamber is equipped with the tissue scraper, and in the use, rotates gently along the direction of tissue scraper cutting edge, can scrape the tumour, and the collection intracavity can be collected to the tissue piece of scraping down, can collect the pathological tissue of tumour from interior to exterior different aspect simultaneously.

To sum up, the utility model discloses it is rational in infrastructure, and easy operation uses the pjncture needle to replace biopsy forceps to come to carry out the biopsy operation to the tumour, effectively solved and used biopsy forceps to carry out the biopsy sampling can cause great wound and the great problem of limitation of current biopsy puncture to tumour sample, only can leave less wound to patient's skin and tumour during the use, the trouble that the later stage must carry out careful processing has been saved, avoid malignant tumor to spread the problem that can lead to patient's state of an illness to aggravate, and can gather the tissue of different aspect in the tumour simultaneously, with the degree of accuracy that improves the biopsy, help the doctor to carry out accurate judgement to patient's state of an illness.

Drawings

FIG. 1 is a schematic view of the overall structure of the tumor biopsy puncture needle with sampling function of the present invention;

fig. 2 is a schematic front view of the structure of the present invention;

fig. 3 is a schematic cross-sectional structure view of the needle base of the present invention;

fig. 4 is a schematic top sectional view taken along line a-a in fig. 2 according to the present invention.

In the figure: 1. a hollow needle; 10. a liquid collecting hole; 11. a needle tip; 12. a liquid collecting pipe; 13. a push rod; 131. a push block; 132. a rubber plug; 133. a limiting block; 2. a sleeve; 21. a collection chamber; 211. a tissue scraper; 22. a miter face; 3. a needle seat; 31. and taking a measuring observation port.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "inner diameter", "outer diameter", "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, in the description of the present invention, "a plurality" means at least one, e.g., one, two, etc., unless specifically limited otherwise.

Referring to fig. 1-4, the present invention provides a technical solution:

a tumor biopsy puncture needle with a sampling function is shown in figures 2-3 and comprises a hollow needle 1, wherein a plurality of liquid collecting holes 10 are regularly formed in the outer side face of the lower end of the hollow needle 1, a needle tip 11 is arranged at the bottom end of the hollow needle 1, a liquid collecting pipe 12 is arranged at the top end of the hollow needle 1, a push rod 13 is arranged in the liquid collecting pipe 12, a push block 131 is arranged at the bottom end of the push rod 13, a rubber plug 132 is arranged at the lower end of the push block 131, a limit block 133 is arranged at the top end of the push rod 13, a needle base 3 is sleeved on the outer side of the liquid collecting pipe 12.

In this embodiment, the hollow needle 1 is a hollow structure, the needle tip 11 is a solid structure, and the hollow needle 1 and the needle tip 11 are integrally formed, so that the hollow needle 1 is integrally firm in structure and the needle tip 11 is prevented from being easily broken.

In this embodiment, the top end of the hollow needle 1 is fixed with the bottom end of the liquid collecting tube 12 in an adhesion manner, and the hollow needle 1 is communicated into the liquid collecting tube 12, so that tissue fluid in a tumor can enter the liquid collecting tube 12 from the liquid collecting hole 10.

In this embodiment, the push rod 13, the push block 131 and the limiting block 133 are of an integrated structure, and the rubber plug 132 is adhered and fixed on the bottom surface of the push block 131.

Specifically, the diameter of the top end of the rubber plug 132 is equal to the inner diameter of the collecting tube 12, the diameter of the push block 131 is smaller than or equal to the diameter of the top end of the rubber plug 132, and the diameter of the push block 131 is preferably equal to the diameter of the top end of the rubber plug 132 in the embodiment, so that the rubber plug 132 can be tightly clamped with the collecting tube 12 to improve the tissue fluid suction effect.

In this embodiment, hollow needle 1 runs through the diapire of needle file 3, and the top outer wall of hollow needle 1 is fixed with the adhesion of needle file 3, and

hollow needle

1 and 3 fixed connection of needle file are convenient for apply pressure to hollow needle 1 through needle file 3 and make hollow needle 1 puncture skin and tumor membrane.

Furthermore, the liquid collecting tube 12 is made of transparent glass or PVC, the material thereof is transparent, and the measuring observation port 31 is provided with scale marks, so that the amount of the tissue fluid sucked up can be directly observed conveniently.

As shown in fig. 1 and 4, a sleeve 2 is sleeved outside a hollow needle 1, a plurality of collecting cavities 21 are equidistantly arranged on the outer side surface of the sleeve 2, a tissue scraper 211 is arranged on one side of each collecting cavity 21, and a scarfing surface 22 is arranged at the bottom end of the sleeve 2;

in this embodiment, the inner side wall of the cannula 2 and the outer side wall of the hollow needle 1 are welded in a seamless manner, so that the cannula 2 and the hollow needle 1 are firmly connected into a whole, and the cannula 2 and the hollow needle 1 can conveniently pierce into a tumor together.

In this embodiment, the bottom end of the tissue scraper 211 is welded and fixed on the wall of one side cavity of the collecting cavity 21, and the top end of the tissue scraper 211 extends out of the collecting cavity 21, i.e. the upper end of the tissue scraper 211 protrudes out of the outer side surface of the sleeve 2, so as to facilitate scraping and brushing the tissue in the tumor.

In the embodiment, the hollow needle 1 and the cannula 2 are both made of SUS304/316L medical stainless steel, and the material is firm and durable and is not easy to deform.

In addition, the puncture needle in the embodiment can be made into various sizes, but the outer diameter of the sleeve 2 is less than or equal to 2.0mm (namely, the size of the sleeve does not exceed 12G), so that the condition that the sleeve 2 is too thick to cause an overlarge wound of the biopsy puncture is avoided.

The utility model discloses a tumour biopsy pjncture needle with sample function is when using, at first select the pjncture needle of suitable size, and carry out local anesthesia to patient's tumour position, then at X line perspective or CT, the needle is advanced under the guide of images such as supersound, prick the center of tumour with the needle point 11 of hollow needle 1 deeply, hold needle file 3 again, it rotates several rings gently along the cutting edge direction of organizing scraper 221, then the reuse hand is held between the fingers stopper 133 and is outwards extracted push rod 13 gently, look over the suction condition of tissue liquid through getting the viewing aperture 31, at last, the direction of following pjncture needle puncture is reverse slowly extracted, can easily collect the tissue sample of a plurality of aspect in the tumour.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A tumor biopsy puncture needle with a sampling function comprises a hollow needle (1), and is characterized in that: the liquid collecting device is characterized in that a plurality of liquid collecting holes (10) are regularly arranged on the outer side surface of the lower end of the hollow needle (1), the bottom end of the hollow needle (1) is provided with a needle point (11), the hollow needle (1) is of a hollow structure, the needle point (11) is of a solid structure, the hollow needle (1) and the needle point (11) are of an integrally formed structure, the top end of the hollow needle (1) is provided with a liquid collecting pipe (12), the top end of the hollow needle (1) is fixedly adhered to the bottom end of the liquid collecting pipe (12), the hollow needle (1) is communicated into the liquid collecting pipe (12), a push rod (13) is arranged in the liquid collecting pipe (12), the bottom end of the push rod (13) is provided with a push block (131), the lower end of the push block (131) is provided with a rubber plug (132), the diameter of the top end of the rubber plug (132) is equal to the inner diameter of the liquid collecting pipe (12), the top end of the push rod (13) is provided with a limiting block (133), the push rod (13), the push block (131) and the limiting block (133) are of an integrally formed structure, and the rubber plug (132) is fixedly adhered to the bottom surface of the push block (131);

the needle comprises a hollow needle (1), and is characterized in that a sleeve (2) is sleeved on the outer side of the hollow needle (1), the inner side wall of the sleeve (2) is welded with the outer side wall of the hollow needle (1) in a seamless mode, a plurality of collecting cavities (21) are arranged on the outer side surface of the sleeve (2) at equal intervals, a tissue scraper (211) is arranged on one side of each collecting cavity (21), the bottom end of each tissue scraper (211) is welded and fixed on the cavity wall of one side of each collecting cavity (21), the top end of each tissue scraper (211) extends out of each collecting cavity (21), and an oblique joint face (22) is arranged at the bottom end of;

the outside cover of collector tube (12) is equipped with needle file (3), hollow needle (1) runs through the diapire of needle file (3), the top outer wall of hollow needle (1) with needle file (3) adhesion is fixed, be equipped with on the lateral surface of needle file (3) and get volume viewing aperture (31).