CN215739135U

CN215739135U - Minimally invasive tumor biopsy sampler

Info

Publication number: CN215739135U
Application number: CN202122250930.0U
Authority: CN
Inventors: 范铁强
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-02-08
Anticipated expiration: 2031-09-16

Abstract

The utility model discloses a minimally invasive tumor biopsy sampler in the technical field of medical instruments, which comprises a sheath rod, a shearing part, elastic parts, shearing blades, a limiting groove, a rotating sleeve, a fine screw rod and a through hole, wherein the rotating sleeve is sleeved on the fine screw rod in a threaded manner, and when the rotating sleeve rotates on the sheath rod, the fine screw rod is driven to move along the axial direction of the sheath rod, and the two elastic parts are pulled to slide in the limiting groove, so that the two shearing blades are close to each other, and the shearing action is completed. Through the rotation that rotates the cover, make thin screw rod pulling elasticity portion slide in the spacing groove, and then make the shearing sword in two elasticity portions be close to each other to cut the tumour tissue, the simple operation, and elasticity portion can not produce and remove by oneself, and then can not influence the operation of biopsy sample, through setting up the rubber slab, make the puncture depth of sheath pole can adjust, avoid the puncture depth too big and cause and produce the damage to tumour tissue.

Description

Minimally invasive tumor biopsy sampler

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a minimally invasive tumor biopsy sampler.

Background

With the development of tumor molecular biology in recent years, the treatment of solid tumors increasingly emphasizes individualized comprehensive treatment. Chemotherapy can improve the complete resection rate of solid tumors and plays an important role in improving the survival rate of patients after tumor resection, the pathology of tumors is the premise for formulating individual chemotherapy schemes, but pathological diagnosis needs more specimen tissues, so that clinical biopsy cannot be performed in a large number of cases.

At present, when the biopsy sampling is carried out on tumor tissues, the operation of the used sampler is more complicated, and the efficiency of the sampling operation is further influenced.

Based on this, the utility model designs a minimally invasive tumor biopsy sampler to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a minimally invasive tumor biopsy sampler, which aims to solve the problem that the operation of the sampler used in the prior art is more complicated when the tumor tissue is sampled in a biopsy manner, so that the sampling operation efficiency is influenced.

In order to achieve the purpose, the utility model provides the following technical scheme: a minimally invasive tumor biopsy sampler comprises a sheath rod, wherein one end of the sheath rod is provided with a shearing part, the shearing part comprises two elastic parts, the elastic parts are provided with a common end, the two elastic parts are connected end to form a V-shaped structure, the non-common ends of the two elastic parts are provided with shearing blades along the central lines of the two elastic parts, the sheath rod is provided with a limiting groove for the two elastic parts to be clamped, the longitudinal section of the limiting groove is formed into a V-shaped structure, one end of the sheath rod, far away from the elastic parts, is coaxially and rotatably connected with a rotating sleeve, the common end of the two elastic parts is provided with a thin screw rod, the sheath rod is coaxially provided with a through hole for the thin screw rod to freely pass through, the rotating sleeve is sleeved on the thin screw rod in a threaded manner, and when the sheath rod rotates, the thin screw rod is driven to move along the axial direction of the sheath rod, the two elastic parts are pulled to slide in the limiting groove, so that the two shearing blades are close to each other, completing the shearing action.

Preferably, a hollow stepped shaft is coaxially arranged on the sheath rod, and a clamping groove which is used for clamping the stepped shaft and can rotate freely in the circumferential direction is formed in the rotating sleeve.

Preferably, the elastic portion is made of a stainless steel material.

Preferably, the sheath rod is provided with a plurality of scale marks, a sliding ring is slidably sleeved on the sheath rod, a rubber plate is sleeved on the sliding ring, a fastening screw penetrates through the sliding ring, and a waist-shaped groove which is used for allowing the fastening screw to penetrate through the inner end of the sliding ring to be clamped and can freely slide along the axial direction of the sheath rod is formed in the outer wall of the sheath rod.

Preferably, two opposite sides of the two elastic parts in the width direction are respectively provided with a protruding part, and a storage space is enclosed between the four protruding parts and the two elastic parts.

Compared with the prior art, the utility model has the beneficial effects that: through the rotation that rotates the cover, make thin screw rod pulling elasticity portion slide in the spacing groove, and then make the shearing sword in two elasticity portions be close to each other to cut the tumour tissue, the simple operation, and elasticity portion can not produce and remove by oneself, and then can not influence the operation of biopsy sample, through setting up the rubber slab, make the puncture depth of sheath pole can adjust, avoid the puncture depth too big and cause and produce the damage to tumour tissue.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic perspective view of a minimally invasive biopsy sampler according to the present invention;

FIG. 2 is an exploded view of the three-dimensional structure of FIG. 1;

FIG. 3 is an enlarged view of a portion of the three-dimensional structure shown at A in FIG. 2;

fig. 4 is a schematic sectional view of a three-dimensional structure of the rotating sleeve of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-thin screw rod, 2-rotating sleeve, 3-scale mark, 4-sliding ring, 5-rubber plate, 6-kidney-shaped groove, 7-fastening screw, 8-elastic part, 9-clamping groove, 10-sheath rod, 11-shearing blade, 12-bulge, 13-limiting groove, 14-stepped shaft and 15-storage space.

Detailed Description

The technical solutions 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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a minimally invasive tumor biopsy sampler comprises a sheath rod 10, a plurality of scale marks 3 are arranged on the sheath rod 10, a sliding ring 4 is sleeved on the sheath rod in a sliding manner, a rubber plate 5 is sleeved on the sliding ring 4, a fastening screw 7 penetrates through the sliding ring 4, a kidney-shaped groove 6 which is used for allowing the fastening screw 7 to penetrate into the sliding ring 4 and is clamped at one end and can freely slide along the axial direction of the sheath rod 10 is arranged on the outer wall of the sheath rod 10, the sliding ring 4 slides to the proper scale mark 3 through the sliding ring 4, then the sliding ring 4 is screwed on the sliding ring 4 through the fastening screw 7 and is clamped into the kidney-shaped groove 6, and the sliding ring 4 is limited, so that the puncture depth of the sheath rod 10 can be adjusted, a shearing part is arranged at one end of the sheath rod 10, the shearing part comprises two elastic parts 8, the elastic parts 8 have a common end, the two elastic parts 8 are connected end to form a V shape, and a shearing edge 11 is arranged at the non-common end along the central line of the two, a sheath rod 10 is provided with a limiting groove 13 which is used for clamping two elastic parts 8 and has a V-shaped longitudinal section, one end of the sheath rod 10 far away from the elastic parts 8 is coaxially and rotatably connected with a rotating sleeve 2, concretely, the sheath rod 10 is coaxially provided with a hollow stepped shaft 14, the rotating sleeve 2 is internally provided with a clamping groove 9 which is used for clamping the stepped shaft 14 and can freely rotate in the circumferential direction, a thin screw rod 1 can penetrate through a middle hole of the stepped shaft 14, when the rotating sleeve 2 rotates on the stepped shaft 14, the stepped shaft 14 rotates and limits the rotating sleeve 2 in the clamping groove 9, so that the rotating sleeve 2 is rotatably connected on the sheath rod 10, a thin screw rod 1 is arranged at the common end of the two elastic parts 8, the sheath rod 10 is coaxially provided with a through hole which the thin screw rod 1 freely passes through, the rotating sleeve 2 is sleeved on the thin screw rod 1 in a threaded manner, and when the rotating sleeve rotates on the sheath rod 10, the thin screw rod 1 is driven to move along the axial direction of the sheath rod 10, and pulls the two elastic parts 8 to slide in the limit groove 13, so that the two shearing blades 11 approach each other, thereby completing the shearing action, the sheath rod 10 penetrates into the body of the patient, the penetration depth of the sheath rod 10 can be fixed by the abutment of the rubber plate 5 and the body surface of the patient, then the rotating sleeve 2 is rotated, when the rotating sleeve 2 rotates, the rotating sleeve is screwed with the thread of the thin screw rod 1, thereby driving the thin screw rod 1 to move, and pulling the elastic parts 8 to move towards the inner side of the sheath rod 10 in the limit groove 13, so that the shearing blades 11 on the two elastic parts 8 can shear the tumor tissue, thereby cutting a tumor tissue sample with a certain size, so as to carry out physiological detection, the two opposite sides of the two elastic parts 8 in the width direction are respectively provided with a convex part 12, a storage space 15 is enclosed between the four convex parts 12 and the two elastic parts 8, so that the tumor sample enters the storage space 15 for storage after the shearing of the tumor living body by the shearing blades 11, avoid tumour appearance body to produce the phenomenon of dropping in the removal in-process of sheath pole 10, elasticity portion 8 is made by stainless steel material in addition, avoids elasticity portion 8 to produce the corrosion phenomenon.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. The minimally invasive tumor biopsy sampler is characterized by comprising a sheath rod (10), wherein one end of the sheath rod (10) is provided with a shearing part, the shearing part comprises two elastic parts (8), the elastic parts (8) have a common end, the two elastic parts (8) are connected end to form a V shape, the non-common end of the two elastic parts is provided with a shearing blade (11) along the central line of the two elastic parts, the sheath rod (10) is provided with a limiting groove (13) which is used for clamping the two elastic parts (8) and has a V-shaped longitudinal section, one end of the sheath rod (10) far away from the elastic parts (8) is coaxially and rotatably connected with a rotating sleeve (2), the common end of the two elastic parts (8) is provided with a thin screw rod (1), the sheath rod (10) is coaxially provided with a through hole which is used for the thin screw rod (1) to freely pass through and is in a through hole form, the rotating sleeve (2) is in threaded sleeved on the thin screw rod (1), and when the sheath rod (10) rotates, the thin screw rod (1) is driven to move along the axial direction of the sheath rod (10), and the two elastic parts (8) are pulled to slide in the limiting grooves (13), so that the two shearing blades (11) are close to each other, and the shearing action is completed.

2. The minimally invasive tumor biopsy sampler according to claim 1, wherein a hollow stepped shaft (14) is coaxially disposed on the sheath rod (10), and a slot (9) for the stepped shaft (14) to engage and rotate freely in a circumferential direction is disposed in the rotating sleeve (2).

3. A minimally invasive tumor biopsy sampler according to claim 1, wherein the resilient part (8) is made of stainless steel.

4. The minimally invasive tumor biopsy sampler according to claim 1, wherein the sheath rod (10) is provided with a plurality of scale marks (3), a sliding ring (4) is slidably sleeved on the sheath rod, the sliding ring (4) is sleeved with a rubber plate (5), a fastening screw (7) is arranged on the sliding ring (4) in a penetrating manner, and a waist-shaped groove (6) for the fastening screw (7) to penetrate into the sliding ring (4) and to be clamped at one end thereof and to freely slide along the axial direction of the sheath rod (10) is formed in the outer wall of the sheath rod (10).

5. The sampler of claim 1, wherein two opposite sides of the two elastic parts (8) in the width direction are respectively provided with a protrusion (12), and a storage space (15) is enclosed between the four protrusions (12) and the two elastic parts (8).