A puncture biopsy structure
By introducing elastic blades into the puncture biopsy structure to wrap around the trephine saw and grasp the bone, the problem of the difficulty in removing bone with the trephine saw in the existing technology is solved, and more efficient bone sampling is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN PINGLE ORTHOPEDICS&TRAUMATOLOGY HOSPITAL
- Filing Date
- 2025-01-08
- Publication Date
- 2026-05-26
Smart Images
Figure CN224269406U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a puncture biopsy structure. Background Technology
[0002] Application number CN202020648199.X discloses a bone tissue biopsy cannula, including a needle cannula and matching puncture needle core and biopsy needle core, which solves the technical problems such as poor sampling effect of conventional biopsy devices. However, the trephine still has the problem of inconvenience in removing bone. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a puncture biopsy structure to address the shortcomings of the existing technology.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.
[0005] A puncture biopsy structure includes a sampling sleeve and a puncture needle core. The outer wall of the front end of the sampling sleeve is provided with an elastic blade, and the front end of the puncture needle core is provided with a ring saw for grasping bone. The puncture needle core is movably inserted into the sampling sleeve, and the front end of the puncture needle core extends out or is retracted into the elastic blade.
[0006] A preferred embodiment is that the sampling sleeve has a retaining ring at the rear end, and the puncture needle core has a handle at the rear end.
[0007] A preferred embodiment is that the elastic blade comprises several blades, which form an inverted frustum structure.
[0008] The puncture biopsy structure provided in this embodiment of the present invention has at least the following beneficial effects: the sampling sleeve first passes through the skin, the puncture needle core drills into the bone, the circumferential saw grabs the bone, the sampling sleeve then enters the bone again, and the elastic blade wraps around the bone grabbed by the circumferential saw, making it easier for the circumferential saw to remove the bone.
[0009] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of bone extraction according to this utility model. Figure 1 ;
[0011] Figure 2 This is a schematic diagram of bone extraction according to this utility model. Figure 2 ;
[0012] Figure 3 This is a schematic diagram of the sampling sleeve in this utility model;
[0013] Figure 4 This is a schematic diagram of the puncture needle core in this utility model. Detailed Implementation
[0014] To illustrate the ideas and objectives of this application, the following description will be provided in conjunction with the accompanying drawings and specific embodiments.
[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," "left," "right," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.
[0016] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0017] like Figures 1 to 4 As shown, this application embodiment provides a puncture biopsy structure, including a sampling sleeve 10 and a puncture needle core 20. The outer wall of the front end of the sampling sleeve 10 is provided with an elastic blade 11, and the front end of the puncture needle core 20 is provided with a ring saw 21 for grasping bone 30. The puncture needle core 20 is movably inserted into the sampling sleeve 10, and the front end of the puncture needle core 20 extends out or is stored in the elastic blade 11.
[0018] like Figures 1 to 4 As shown, Figure 2 The middle arrow indicates the direction of movement of the sampling sleeve 10. The sampling sleeve 10 first passes through the skin, the puncture needle core 20 drills into the bone 30, the ring saw 21 grabs the bone 30, the sampling sleeve 10 then enters the bone 30, the elastic blade 11 wraps around the bone 30 grabbed by the ring saw 21, making it easier for the ring saw 21 to remove the bone 30.
[0019] like Figures 1 to 4As shown, the sampling sleeve 10 has a retaining ring 12 at its rear end, and the puncture needle core 20 has a handle 22 at its rear end. The handle 22 is located outside the retaining ring 12, and the handle 22 can push the puncture needle core 20 back and forth along the sampling sleeve 10, facilitating the removal of bone 30 by the puncture needle core 20. The retaining ring 12 facilitates the sampling sleeve 10 to pass through the skin and facilitates the elastic leaf 11 to wrap around the bone 30.
[0020] like Figures 1 to 4 As shown, the elastic blade 11 comprises several blades, which together form an inverted frustum structure. The elastic blade 11 possesses a certain degree of elasticity. The sampling sleeve 10 first penetrates the skin, and the elastic blade 11...
[0021] like Figures 1 to 4 As shown, the puncture needle core 20 is inserted into the bone 30. The front end of the puncture needle core 20 is housed in the elastic blade 11. The front end of the puncture needle core 20 protrudes through the elastic blade 11. The ring saw 21 grabs the bone 30. The elastic blade 11 wraps around the bone 30 grabbed by the ring saw 21, making it easier for the ring saw 21 to remove the bone 30.
[0022] The above are specific embodiments of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.
Claims
1. A biopsy piercing structure, characterized by, The sampling sleeve is provided with elastic blades on the outer wall of the front end, and the puncture needle core is provided with a ring saw for grabbing bones on the front end, and the puncture needle core is movably arranged in the sampling sleeve, and the front end of the puncture needle core is extended out of or received in the elastic blades.
2. The piercing biopsy structure of claim 1, wherein, The rear end of the sampling sleeve is provided with a fixing ring, and the rear end of the puncture needle core is provided with a handle.
3. The piercing biopsy structure of claim 1, wherein, The elastic blades include a plurality of pieces, and the plurality of elastic blades form an inverted conical table structure.