Multi-stage positioning tissue biopsy device

Abstract

The multi-stage positioning tissue biopsy device comprises a biopsy rod and a sleeve, wherein the lower end of the biopsy rod is connected with a handle, a plurality of mounting grooves are provided on one side of the biopsy rod along the vertical direction, a sampling spoon is hinged in each mounting groove, a spring groove is provided on the bottom wall of the mounting groove along the horizontal direction, a spring is provided in the spring groove, one end of the spring is connected with the middle part of the sampling spoon, and the other end of the spring is connected with the bottom of the spring groove, the sleeve is slidably sleeved on the outside of the biopsy rod up and down, a plurality of square holes are provided on one side of the sleeve along the vertical direction, the plurality of square holes are arranged at positions corresponding to the sampling spoons one by one, a T-slot is provided in the sleeve wall below each square hole, the upper side of the T-slot is connected with the square hole, a baffle is slidably installed in the T-slot, a slider is fixedly connected to the lower part of the baffle, and a push plate is provided on the outer periphery of the lower end of the sleeve; in summary, the present invention can effectively perform multi-point sampling on the patient's lesions at the same time, greatly saving operation time.

Description

Technical Field

[0001] The invention belongs to the field of medical technology, and in particular relates to a multi-level positioning tissue biopsy device. Background Art

[0002] Living tissue examination, abbreviated as biopsy, is a commonly used pathological examination and diagnosis method. It refers to the technology of removing diseased tissue from the patient's body by cutting, clamping or puncturing for pathological examination in response to the needs of diagnosis and treatment. Biopsy is the most important part of diagnostic pathology. It can make a clear histopathological diagnosis for most of the pathologies sent for examination and is used as the final clinical diagnosis. The sampling site must be accurate during biopsy, avoiding necrotic tissue or obvious secondary infection areas. When performing tissue biopsy, it is usually necessary to take samples from multiple points. Generally, it is necessary to take samples from diseased tissue, tissue around the lesion, normal tissue, etc., so that different tissues can be compared with each other to improve the reliability of pathological diagnosis. The sampling should have a certain depth, and vertical cutting parallel to the depth of the lesion is required. The biopsy forceps currently used can usually only take pathological specimens from one point at a time. Since multiple sampling points are required, repeated operations are required, which causes great damage to the patient and prolongs the biopsy time. Summary of the invention

[0003] In order to solve the deficiencies in the prior art, the present invention provides a multi-stage positioning tissue biopsy device, which can effectively take samples from multiple points of lesions at the same time, greatly improving work efficiency.

[0004] In order to solve the above technical problems, the present invention adopts the following technical scheme: a multi-stage positioning tissue biopsy device, including a biopsy rod and a sleeve, a handle is connected to the lower end of the biopsy rod, a plurality of mounting grooves are opened on one side of the biopsy rod along the vertical direction, a sampling spoon is hinged in each mounting groove, a spring groove is opened on the bottom wall of the mounting groove along the horizontal direction, a spring is arranged in the spring groove, one end of the spring is connected to the middle part of the sampling spoon, and the other end of the spring is connected to the bottom of the spring groove, the sleeve is slidably sleeved on the outside of the biopsy rod, a plurality of square holes are opened on one side of the sleeve along the vertical direction, and the positions of the plurality of square holes correspond to the sampling spoons one by one, a T-slot is arranged in the sleeve wall below each square hole, the upper side of the T-slot is connected to the square hole, a baffle is slidably installed in the T-slot, a slider is fixedly connected to the lower part of the baffle, and a push plate is arranged on the outer periphery of the lower end of the sleeve.

[0005] By adopting the above technical scheme, the present invention has the following beneficial effects: the sampling spoon is ejected outward by the connected spring and slides upward through the sleeve, and the sleeve wall presses the sampling spoon to close the front end of the sampling spoon, thereby cutting out part of the pathological sample, and the plurality of square holes provided on the sleeve wall and the push plate provided in the sleeve wall below each square hole can selectively close individual square holes through the baffle, thereby adjusting the spacing during multi-point sampling.

[0006] In summary, the present invention can effectively perform multi-point sampling on the patient's lesions at the same time, greatly saving operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the structure of the present invention;

[0008] Figure 2 is a cross-sectional view of a biopsy rod of the present invention;

[0009] Figure 3 Is a cross-sectional view of the sleeve of the present invention;

[0010] Figure 4 yes Figure 2 The local enlarged view of point I in the middle;

[0011] Figure 5 yes Figure 3 A partial enlarged view of point II in the middle. DETAILED DESCRIPTION

[0012] like Figure 1-5 As shown, the multi-stage positioning tissue biopsy device of the present invention comprises a biopsy rod 1 and a sleeve 2, the lower end of the biopsy rod 1 is connected to a handle 3, a plurality of mounting grooves 4 are provided on one side of the biopsy rod 1 along the vertical direction, a sampling spoon 5 is hinged in each mounting groove 4, a spring groove is provided on the bottom wall of the mounting groove 4 along the horizontal direction, a spring 7 is provided in the spring groove 6, one end of the spring 7 is connected to the middle part of the sampling spoon 5, and the other end of the spring 7 is connected to the bottom of the spring groove 6, the sleeve 2 is slidably sleeved on the outside of the biopsy rod 1 up and down, a plurality of square holes 8 are provided on one side of the sleeve 2 along the vertical direction, and the plurality of square holes 8 are arranged in positions corresponding to the sampling spoon 5 one by one, a T-slot is provided in the wall of the sleeve 2 below each square hole 8, the upper side of the T-slot is connected to the square hole 8, a baffle 9 is slidably installed in the T-slot, a slider 10 is fixedly connected to the lower part of the baffle 9, and a push plate 11 is provided on the outer periphery of the lower end of the sleeve 2.

[0013] The front end of the sampling spoon 5 is sharp, which is convenient for cutting off the pathological sample.

[0014] When using the invention, the operator adjusts the sampling point spacing as needed, pushes the slider 10 to push the baffle 9 upward to cover the individual square holes 8, and then sleeves the sleeve 2 upward from the lower end of the biopsy rod 1. When sleeves are sleeved, ensure that the plurality of sampling spoons 5 and the plurality of square holes 8 are not on the same vertical line. After the sleeve 2 is completely sleeved on the biopsy rod 1, all the sampling spoons 5 are pressed into the sleeve 2, and then the biopsy rod 1 is inserted into the patient's lesion, and the sleeve 2 is rotated along the axis of the biopsy rod 1 to make the sampling spoon 5 pop out from the square hole 8 of the sleeve 2, and then the sleeve 2 is pushed forward to make the ejected sampling spoon 5 pressed back into the sleeve 2. The sampling spoon 5 will cut part of the pathological specimen in the process of being pressed into the sleeve 2, and finally the biopsy rod 1 can be taken out.

[0015] This embodiment does not impose any formal limitation on the shape, material, structure, etc. of the present invention. Any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A multi-stage positioning tissue biopsy device, characterized in that: It includes a biopsy rod and a sleeve. The lower end of the biopsy rod is connected to a handle. One side of the biopsy rod is provided with a plurality of mounting grooves in the vertical direction. A sampling spoon is hinged in each mounting groove. A spring groove is provided in the bottom wall of the mounting groove in the horizontal direction. A spring is provided in the spring groove. One end of the spring is connected to the middle of the sampling spoon, and the other end of the spring is connected to the bottom of the spring groove. The sleeve is slidably sleeved on the outside of the biopsy rod. One side of the sleeve is provided with a plurality of square holes in the vertical direction. The positions of the plurality of square holes correspond to the sampling spoons one by one. A T-slot is provided in the sleeve wall below each square hole. The upper side of the T-slot is connected to the square hole. A baffle is slidably installed in the T-slot. A slider is fixedly connected to the lower part of the baffle. A push plate is provided on the outer periphery of the lower end of the sleeve. The front end of the sampling spoon is sharp, which is convenient for cutting off pathological samples.

Images