CN209751112U - Tumor biopsy puncture needle - Google Patents

Tumor biopsy puncture needle Download PDF

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Publication number
CN209751112U
CN209751112U CN201920254922.3U CN201920254922U CN209751112U CN 209751112 U CN209751112 U CN 209751112U CN 201920254922 U CN201920254922 U CN 201920254922U CN 209751112 U CN209751112 U CN 209751112U
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CN
China
Prior art keywords
needle
piston
fixed
sample
hollow needle
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Expired - Fee Related
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CN201920254922.3U
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Chinese (zh)
Inventor
黄俊婷
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Individual
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Individual
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Priority to CN201920254922.3U priority Critical patent/CN209751112U/en
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Publication of CN209751112U publication Critical patent/CN209751112U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model belongs to the medical field, especially, tumour biopsy pjncture needle, to the inaccurate and problem that need sample many times of current tumour sample, the following scheme is proposed at present, it includes a negative pressure section of thick bamboo, one side of a negative pressure section of thick bamboo is provided with hollow needle, sliding connection has first piston in the negative pressure section of thick bamboo, one side that first piston is close to hollow needle is fixed with the sampling needle, the one end that first piston was kept away from to the sampling needle is fixed with the second piston, the both sides of hollow needle all are equipped with the sample connection, be fixed with a plurality of sealed pads and cutter on the sampling needle, one side that hollow needle was kept away from to first piston is fixed with the pull rod, the one end of pull rod is equipped with the piston handle, one side that hollow needle was kept away from to a negative pressure section of thick bamboo has seted up the spacing groove. The utility model discloses the effectual accuracy that improves the sample can be taken a sample to the different degree of depth of pathological change tissue simultaneously, has improved sampling efficiency, has reduced patient's misery.

Description

Tumor biopsy puncture needle
Technical Field
The utility model relates to the technical field of medical treatment, especially, relate to a tumor biopsy pjncture needle.
Background
The tumor seriously threatens the health of human beings, the property of accurately diagnosing the tumor has important significance for the treatment of the tumor, at present, a biopsy puncture needle is used for extracting part of tissues for inspection, the traditional puncture needle adopts a hook-shaped needle to hook out the pathological change tissues, the sampling effect is not ideal, the pathological change tissues are not taken out frequently, the success rate of the biopsy puncture is influenced, in addition, only a sample with a specific depth can be taken during the puncture, the different positions of the pathological change tissues can not be sampled simultaneously, the sampling is required for a plurality of times, and the pain of a patient is increased.
SUMMERY OF THE UTILITY MODEL
The utility model provides a tumor biopsy puncture needle, which solves the problems of inaccurate tumor sampling and multiple sampling.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
A tumor biopsy puncture needle, which comprises a negative pressure cylinder, wherein a hollow needle is arranged at one side of the negative pressure cylinder, a cavity is arranged in the hollow needle and is communicated with a negative pressure cylinder, a first piston is connected in the negative pressure cylinder in a sliding way, a sampling needle is fixed on one side of the first piston close to the hollow needle, a second piston is fixed on one end of the sampling needle far away from the first piston, the two sides of the hollow needle are respectively provided with a sampling port, the sampling needle is fixed with a plurality of sealing gaskets, the sealing gaskets are arranged corresponding to the sampling ports, the outer side of the sampling needle is fixed with a cutter, a pull rod is fixed on one side of the first piston far away from the hollow needle, a piston handle is arranged at one end of the pull rod, one side of the negative pressure cylinder, which is far away from the hollow needle, is provided with two horizontally arranged limiting grooves, two L-shaped limiting rods are fixed on the outer side of the pull rod, and the horizontal parts of the L-shaped limiting rods are connected in the limiting grooves in a sliding manner.
Preferably, one end of the hollow needle far away from the negative pressure cylinder is of a conical structure.
Preferably, the second piston is movably connected in the cavity, and the sampling needle is positioned in the cavity.
Preferably, an annular ring is fixed on the outer peripheral side of the piston handle, and the vertical section of the annular ring is of an arc-shaped structure.
Preferably, the sealing gasket is of an arc-shaped structure, and the sealing gasket is in contact with the inner wall of the cavity.
Preferably, the sample connection is provided with a plurality ofly along the length direction of hollow needle, and the sample connection is equipped with the sealed pad that corresponds the setting, and sealed pad covers the sample connection completely, the cutter is located the sealed one side of keeping away from first piston that fills up correspondingly.
The utility model discloses in, through setting up a plurality of sample connections, be convenient for take a sample to the different degree of depth of pathological change tissue, the setting of sealed pad has avoided the influence of non-sample position tissue to the sample, has improved the accuracy of sample.
The utility model discloses the effectual accuracy that improves the sample can be taken a sample to the different degree of depth of pathological change tissue simultaneously, has improved sampling efficiency, has reduced patient's misery.
Drawings
Fig. 1 is a schematic structural view of a tumor biopsy puncture needle provided by the present invention.
Fig. 2 is an enlarged schematic view of a portion a of the structure in fig. 1 of the tumor biopsy puncture needle provided by the present invention.
Fig. 3 is a schematic view of a negative pressure cylinder structure of the tumor biopsy puncture needle provided by the present invention.
Reference numbers in the figures: 1 negative pressure cylinder, 2 hollow needles, 3L-shaped limiting rods, 4 pull rods, 5 piston handles, 6 first pistons, 7 sampling needles, 8 second pistons, 9 limiting grooves, 10 cavities, 11 sealing gaskets, 12 sampling ports, 13 cutters and 14 annular rings.
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.
Referring to fig. 1-3, a tumor biopsy puncture needle comprises a negative pressure cylinder 1, a hollow needle 2 is arranged on one side of the negative pressure cylinder 1, a cavity 10 is arranged in the hollow needle 2, the cavity 10 is communicated with the negative pressure cylinder 1, a first piston 6 is slidably connected in the negative pressure cylinder 1, a sampling needle 7 is fixed on one side of the first piston 6 close to the hollow needle 2, a second piston 8 is fixed on one end of the sampling needle 7 far away from the first piston 6, sampling ports 12 are respectively arranged on both sides of the hollow needle 2, a plurality of sealing gaskets 11 are fixed on the sampling needle 7, the sealing gaskets 11 are arranged corresponding to the sampling ports 12, a cutter 13 is fixed on the outer side of the sampling needle 7, a pull rod 4 is fixed on one side of the first piston 6 far away from the hollow needle 2, a piston handle 5 is arranged at one end of the pull rod 4, two horizontally arranged limiting grooves 9 are arranged on one side of the negative pressure cylinder far away from the hollow needle, the horizontal part of the L-shaped limiting rod 3 is connected in the limiting groove 9 in a sliding way; one end of the hollow needle 2 far away from the negative pressure cylinder 1 is of a conical structure; the second piston 8 is movably connected in the cavity 10, and the sampling needle 7 is positioned in the cavity 10; an annular ring 14 is fixed on the outer peripheral side of the piston handle 5, and the vertical section of the annular ring 14 is of an arc structure; the sealing gasket 11 is of an arc-shaped structure, and the sealing gasket 11 is contacted with the inner wall of the cavity 10; the sample connection 12 is provided with a plurality ofly along the length direction of hollow needle 2, and sample connection 12 is equipped with the sealed pad 11 that corresponds the setting, and sealed pad 11 covers sample connection 12 completely, and cutter 13 is located the sealed one side of keeping away from first piston 6 that fills up 11 of correspondence.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element 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, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The working principle is as follows: when the device is used, fingers are pinched in the arc-shaped groove of the annular ring 14 to push the piston handle 5, when the device is pushed to the bottom, the sealing gasket 11 completely covers the sampling port 12, the cutter 13 is positioned between the second piston 8 and the sealing gasket 11, the connecting line of the sealing gasket 11 and the cutter 13 positioned on the same side is parallel to the sampling needle 7, the conical structure at the end part of the hollow needle 2 is convenient for the hollow needle to puncture lesion tissues and is convenient for sampling, when the hollow needle 2 reaches a specified position, the piston handle 5 is pulled, because the area of the inner vertical section of the negative pressure cylinder 1 is larger than that of the vertical section of the hollow needle 2, in the outward moving process of the first piston 6, the volume between the first piston 6 and the second piston 8 is increased, the space pressure between the first piston 6 and the second piston 8 is continuously reduced to generate negative pressure, in the moving process, the sealing gasket 11 is moved away from the sampling port 12, and under the action of the negative pressure, the lesion tissues enter the cavity 10 of, continue slow moving, when cutter 13 removed sampling opening 12, the tissue to getting into cavity 10 is amputated, the tissue after the excision is stayed in cavity 10, sealed setting up of filling up 11, the in-process of piercing the tissue has been avoided, the tissue at non-sampling position produces the pollution to the sample, because sampling opening 12 is provided with a plurality ofly along hollow needle 2's length direction, can sample the tissue of the different degree of depth, the efficiency of sample has been improved, L shape gag lever post 3 and spacing groove 9's cooperation, play spacing effect, avoided sampling needle 7 to take place to rotate, avoid sealed 11 and sampling opening 12 dislocation of filling up, can not play sealed effect.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides a tumor biopsy puncture needle, includes a negative pressure section of thick bamboo (1), its characterized in that, one side of a negative pressure section of thick bamboo (1) is provided with hollow needle (2), be equipped with cavity (10) in hollow needle (2), cavity (10) and a negative pressure section of thick bamboo (1) intercommunication, sliding connection has first piston (6) in a negative pressure section of thick bamboo (1), one side that first piston (6) are close to hollow needle (2) is fixed with sample needle (7), the one end that first piston (6) were kept away from in sample needle (7) is fixed with second piston (8), the both sides of hollow needle (2) all are equipped with sample connection (12), be fixed with a plurality of sealed pads (11) on sample needle (7), sealed pad (11) correspond with sample connection (12) and set up, the outside of sample needle (7) is fixed with cutter (13), one side that hollow needle (2) were kept away from in first piston (6) is fixed with pull rod (4), the one end of pull rod (4) is equipped with piston handle (5), spacing groove (9) that two levels set up are seted up to one side that hollow needle (2) were kept away from to the negative pressure section of thick bamboo, the outside of pull rod (4) is fixed with two L shape gag lever posts (3), the horizontal part sliding connection of L shape gag lever post (3) is in spacing groove (9).
2. A needle for tumour biopsy according to claim 1, characterised in that the end of the hollow needle (2) remote from the suction cylinder (1) is of conical configuration.
3. A needle for tumour biopsy according to claim 1, characterised in that the second piston (8) is movably connected in the cavity (10) and that the sampling needle (7) is located inside the cavity (10).
4. The tumor biopsy puncture needle according to claim 1, wherein an annular ring (14) is fixed on the outer peripheral side of the piston handle (5), and the vertical section of the annular ring (14) is of an arc-shaped structure.
5. A needle for tumor biopsy puncture according to claim 1, wherein the sealing gasket (11) is of an arc-shaped configuration, the sealing gasket (11) being in contact with the inner wall of the cavity (10).
6. A needle for biopsy of a tumour according to claim 1, characterised in that said sampling opening (12) is arranged in a plurality along the length of the hollow needle (2), that the sampling opening (12) is provided with a correspondingly arranged sealing gasket (11), that the sealing gasket (11) completely covers the sampling opening (12), and that the cutting blade (13) is located on the side of the corresponding sealing gasket (11) facing away from the first piston (6).
CN201920254922.3U 2019-02-28 2019-02-28 Tumor biopsy puncture needle Expired - Fee Related CN209751112U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920254922.3U CN209751112U (en) 2019-02-28 2019-02-28 Tumor biopsy puncture needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920254922.3U CN209751112U (en) 2019-02-28 2019-02-28 Tumor biopsy puncture needle

Publications (1)

Publication Number Publication Date
CN209751112U true CN209751112U (en) 2019-12-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920254922.3U Expired - Fee Related CN209751112U (en) 2019-02-28 2019-02-28 Tumor biopsy puncture needle

Country Status (1)

Country Link
CN (1) CN209751112U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114343738A (en) * 2022-01-25 2022-04-15 重庆大学附属肿瘤医院 A puncture sampling device for medical oncology

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114343738A (en) * 2022-01-25 2022-04-15 重庆大学附属肿瘤医院 A puncture sampling device for medical oncology

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20191210

Termination date: 20210228