Maneuvering integrated biopsy needle
By designing a motorized integrated biopsy needle with sliding structure and card parts, the problem of inconvenience in operation of existing biopsy needles is solved, efficient and fast puncture operation is achieved, and the equipment is disassembled and assembly convenience is improved through the splicing structure.
Patent Information
- Application Number
- CN202420559473.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-03-21
AI Technical Summary
The existing biopsy needle is inconvenient to operate, so you need to turn the string first and then press the excitation button, which is complicated.
A motorized integrated biopsy needle is designed, adopting the sliding structure of the inner and outer cylinders. Through the cooperation of the sliding cavity and the clip, the excitation button or the excitation thrust button are directly controlled after unlocking, which simplifies operation and facilitates the splicing method. Disassemble and assemble.
It realizes efficient and rapid biopsy operation, simplifies the puncture process, and improves the disassembly and assembly convenience of the equipment through splicing structure.
Smart Images
Figure CN222285518U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of medical tools, and in particular to a motorized integrated biopsy needle. Background Art
[0002] A biopsy needle is a medical device used for sampling living tissue and aspirating cells from cone tumors and unknown tumors in various organs such as the kidney, liver, lung, breast, thyroid, prostate, pancreas, testicles, uterus, ovaries, and body surface.
[0003] A common biopsy needle has an excitation button and a winding button, and it is necessary to first wind the needle and then press the excitation button to operate it, which is inconvenient to operate. Utility Model Content
[0004] In order to improve the above-mentioned inconvenient operation problem, the present application provides a motorized integrated biopsy needle.
[0005] The present application provides a motorized integrated biopsy needle that adopts the following technical solution:
[0006] A motorized integrated biopsy needle, characterized in that it comprises an outer tube, an inner tube, an inner needle rod seat, an outer needle tube seat, an outer needle tube, an inner needle rod, a first spring, a second spring, a first button, a second button, an excitation push button, and an excitation button;
[0007] The inner cylinder is fixed in the outer cylinder, and the inner cylinder has a first sliding cavity and a second sliding cavity adjacent to each other;
[0008] The inner needle rod seat is slidably disposed in the first sliding cavity, and the outer needle tube seat is slidably disposed in the second sliding cavity;
[0009] A first clamp is fixed on the inner needle rod seat, a second clamp is fixed on the outer needle tube seat, and a first clamp opening and a second clamp opening are provided on the inner tube; a first spring is located in the first sliding cavity for resetting the inner needle rod seat, and a second spring is located in the second sliding cavity for resetting the outer needle tube seat;
[0010] The inner needle rod is fixed on the inner needle rod seat, the outer needle tube is fixed on the outer needle tube seat, and the inner needle rod is partially inserted into the outer needle tube;
[0011] The outer tube has a first opening and a second opening at both ends, the first button is fixed to the inner needle rod seat and extends from the first opening, and the second button is fixed to the outer needle tube seat and extends from the first opening together with the first button;
[0012] The excitation button has a first unlocking portion for unlocking the first card, and the inner needle rod seat has a second unlocking portion for unlocking the second card.
[0013] Optionally, a safety lock is slidably connected to the outer tube, and a lock port and an unlock port are provided on the excitation button. The lock port and the unlock port are interconnected, and a length of the unlock port extending along the axis of the outer tube is greater than a length of the lock port extending along the axis of the outer tube.
[0014] Optionally, a front shell is clamped at the first opening, and a needle hole is provided on the front shell for the outer needle tube to extend out.
[0015] Optionally, the excitation push button is snap-connected with the excitation key.
[0016] Optionally, a buffer is installed in the inner tube, and the buffer is located in the first sliding cavity and is used to buffer the inner needle rod seat.
[0017] Optionally, the inner cylinder is composed of two symmetrical half-cylinder structures.
[0018] Optionally, a locking hole is provided on the outer cylinder, and an elastic protrusion that is locked into the locking hole is fixed on the inner cylinder.
[0019] Optionally, the excitation button has a pressing portion at its tail, and an elastic reset structure is provided between the pressing portion and the inner tube.
[0020] Optionally, the buffer members are symmetrically arranged in two groups.
[0021] Optionally, a needle outlet tube is provided on the front shell, the inner needle rod and the outer needle tube both extend from the needle outlet tube, and a sheath is sleeved on the needle outlet tube.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. After unlocking the safety lock, the application can directly control the trigger button or the trigger push button to achieve biopsy puncture, which is efficient and fast;
[0024] 2. The biopsy needle is connected by splicing, which is convenient for disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;
[0026] Figure 2 is a cross-sectional schematic diagram of an embodiment of the present application;
[0027] Figure 3 This is a structural diagram of the excitation button in the embodiment of the present application;
[0028] Figure 4 It is an exploded schematic diagram of an embodiment of the present application.
[0029] 1. Outer cylinder; 11. Safety lock; 12. Clamp hole; 2. Inner cylinder; 21. Left half cylinder; 22. Right half cylinder; 23. First clamp; 24. Second clamp; 25. Elastic protrusion; 26. First sliding cavity; 27. Second sliding cavity; 3. Inner needle rod seat; 31. First clamp; 32. Second unlocking part; 4. Outer needle tube seat; 41. Second clamp; 5. Outer needle tube; 6. Inner needle rod; 71. First spring; 72. Second spring; 73. First button; 74. Second button; 8. Trigger push button; 9. Trigger button; 91. Locking port; 92. Unlocking port; 93. Pressing part; 94. Elastic reset structure; 95. First unlocking part; 10. Front shell; 101. Needle outlet tube; 102. Sheath; 103. Buffer. DETAILED DESCRIPTION
[0030] The following is combined with Figure 1-4 This application is described in further detail.
[0031] The embodiment of the present application discloses a motorized integrated biopsy needle: including an outer tube 1, an inner tube 2, an inner needle rod seat 3, an outer needle tube seat 4, an outer needle tube 5, an inner needle rod 6, a first spring 71, a second spring 72, a first button 73, a second button 74, an excitation push button 8, and an excitation button 9.
[0032] The inner cylinder 2 is fixed in the outer cylinder 1, and the outer cylinder 1 is provided with a clamping hole 12, and the inner cylinder 2 is fixed with an elastic protrusion 25 that is clamped into the clamping hole 12. The inner cylinder 2 has a first sliding cavity 26 and a second sliding cavity 27 adjacent to each other; the inner cylinder 2 is spliced by two symmetrical half cylinder structures, and the two half cylinders can be called the left half cylinder 21 and the right half cylinder 22. The inner needle rod seat 3 is slidably arranged in the first sliding cavity 26, and the outer needle tube seat 4 is slidably arranged in the second sliding cavity 27.
[0033] A first clamp 31 is fixed on the inner needle rod seat 3, a second clamp 41 is fixed on the outer needle tube seat 4, a first bayonet 23 and a second bayonet 24 are provided on the inner tube 2, the first clamp 31 corresponds to the first bayonet 23, and the second clamp 41 corresponds to the second bayonet 24. The inner needle rod seat 3 and the outer needle tube seat 4 have basically the same structure, the first clamp 31 and the second clamp 41 have the same structure, both are two symmetrically arranged hooks, the outer end faces of the hooks are inclined, because the first clamp 31 is integrally formed with the inner needle rod seat 3, and the second clamp 41 is integrally formed with the outer needle tube seat 4, both are made of ABS plastic, which has elasticity itself, and the two hooks can be detached from the bayonet after being deformed and approached to each other.
[0034] The first spring 71 is located in the first sliding cavity 26 for resetting the inner needle bar seat 3. The first spring 71 abuts against the inner needle bar seat 3 and the inner tube 2 (the inner wall at the first bayonet 23). The second spring 72 is located in the second sliding cavity 27 for resetting the outer needle tube seat 4. The second spring 72 abuts against the outer needle tube seat 4 and the inner tube 2 (the inner wall at the second bayonet 24). The inner needle bar 6 is fixed on the inner needle bar seat 3, the outer needle tube 5 is fixed on the outer needle tube seat 4, and the inner needle bar 6 is partially inserted into the outer needle tube 5.
[0035] The outer tube 1 has a first opening and a second opening at both ends respectively. The first button 73 is fixed to the inner needle rod seat 3 (either by snapping or plugging, as long as synchronous movement can be achieved) and extends from the first opening. The second button 74 is fixed to the outer needle tube seat 4 (either by snapping or plugging, as long as synchronous movement can be achieved) and extends from the first opening with the first button 73; the first button 73 is located below the second button 74.
[0036] The trigger button 9 has a first unlocking portion 95 for unlocking the first clamping member 31, and the inner needle rod seat 3 has a second unlocking portion 32 for unlocking the second clamping member 41. Both the first unlocking portion 95 and the second unlocking portion 32 are similar to V-shaped structures, which cooperate with the inclined surface of the hook to make the two hooks approach each other, so that they are disengaged from the bayonet under the action of the spring.
[0037] A safety lock buckle 11 is slidably connected to the outer tube 1, and a lock port 91 and an unlock port 92 are provided on the trigger button 9. The lock port 91 and the unlock port 92 are connected to each other, and the length of the unlock port 92 extending along the axial direction of the outer tube 1 is greater than the length of the lock port 91 extending along the axial direction of the outer tube 1. Specifically, the lock port 91 and the unlock port 92 are combined into an L-shaped groove structure.
[0038] The inner tube 2 is clamped with the front shell 10 at the first opening, and the front shell 10 is provided with a needle hole for the outer needle tube 5 to extend out. The front shell 10 is provided with a needle outlet tube 101, and the needle hole is arranged concentrically with the needle outlet tube 101. The inner needle rod 6 and the outer needle tube 5 both extend out of the needle outlet tube 101, and a sheath 102 is sleeved on the needle outlet tube 101. The front shell 10 is located below the first button 73, and the outer tube 1 simultaneously covers the first button 73, the second button 74 and a part of the front shell 10.
[0039] The excitation button 9 is a long sheet structure as a whole, and has a pressing portion 93 at one end close to the second opening. The pressing portion 93 is located outside the inner tube 2. An elastic reset structure 94 is provided between the pressing portion 93 and the inner tube 2. The elastic reset structure 94 is an arc-shaped plastic sheet, and the ABS plastic sheet is elastic.
[0040] A buffer 103 is fixed in the inner tube 2, and the buffer 103 is located in the first sliding cavity 26 for buffering the inner needle bar seat 3. The buffer 103 is symmetrically arranged in two groups, located at the second bayonet 24, and is specifically a silica gel structure with an I-shaped longitudinal section.
[0041] Before use, the inner needle rod seat 3 is connected to the first bayonet 23, and the outer needle tube seat 4 is connected to the second bayonet 24. At this time, the inner needle rod 6 slightly extends out of the outer needle tube 5 and all extends out of the needle outlet tube 101. When in use, the sheath 102 is pulled out, and the edge of the tissue to be tested is inserted, and then the safety lock buckle 11 is slid to the unlocking port 92, and the pressing part 93 can be pressed or the trigger push button 8 can be pushed. At this time, the first unlocking part 95 first unlocks the first clamping part 31 of the inner needle rod seat 3, and the first clamping part 31 is disengaged from the first bayonet 23. The inner needle rod seat 3 is reset under the action of the first spring 71, and the inner needle rod 6 is driven to penetrate the tissue. The second unlocking part 32 on the inner needle rod seat 3 hits the second clamping part 41 of the outer needle tube seat 4, and the second clamping part 41 is disengaged from the second clamping port 24 and drives the outer needle tube 5 to insert into the tissue under the action of the second spring 72; the inner needle rod 6 has a groove at the end, and the outer needle tube 5 has a cutting edge at the end. The inner needle rod 6 first penetrates the tissue for sampling, and then the outer needle tube 5 is used for cutting, cutting the tissue and retaining it in the groove. After that, the biopsy needle is withdrawn, and the second button 74 is pressed to make the outer needle tube 5 retract to expose the groove. Since the tissue is in the groove, the tissue is also leaked out, and the sampling is completed.
[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A motorized integrated biopsy needle, characterized in that: It includes an outer tube, an inner tube, an inner needle rod seat, an outer needle tube seat, an outer needle tube, an inner needle rod, a first spring, a second spring, a first button, a second button, an excitation push button, and an excitation button; The inner cylinder is fixed in the outer cylinder, and the inner cylinder has a first sliding cavity and a second sliding cavity adjacent to each other; The inner needle rod seat is slidably disposed in the first sliding cavity, and the outer needle tube seat is slidably disposed in the second sliding cavity; A first clamp is fixed on the inner needle rod seat, a second clamp is fixed on the outer needle tube seat, and a first clamp opening and a second clamp opening are provided on the inner tube; a first spring is located in the first sliding cavity for resetting the inner needle rod seat, and a second spring is located in the second sliding cavity for resetting the outer needle tube seat; The inner needle rod is fixed on the inner needle rod seat, the outer needle tube is fixed on the outer needle tube seat, and the inner needle rod is partially inserted into the outer needle tube; The outer tube has a first opening and a second opening at both ends, the first button is fixed to the inner needle rod seat and extends from the first opening, and the second button is fixed to the outer needle tube seat and extends from the first opening together with the first button; The excitation button has a first unlocking portion for unlocking the first card, and the inner needle rod seat has a second unlocking portion for unlocking the second card.
2. The motorized integrated biopsy needle according to claim 1, characterized in that: A safety lock buckle is slidably connected to the outer tube, and a lock port and an unlock port are provided on the excitation button. The lock port and the unlock port are connected to each other, and the length of the unlock port extending along the axis direction of the outer tube is greater than the length of the lock port extending along the axis direction of the outer tube.
3. The motorized integrated biopsy needle according to claim 1, characterized in that: The first opening is clamped with a front shell, and the front shell is provided with a needle hole for the outer needle tube to extend out.
4. The motorized integrated biopsy needle according to claim 1, characterized in that: The excitation push key is engaged with the excitation key.
5. The motorized integrated biopsy needle according to claim 1, characterized in that: A buffer is installed in the inner cylinder, and the buffer is located in the first sliding cavity and is used for buffering the inner needle rod seat.
6. The motorized integrated biopsy needle according to claim 1, characterized in that: The inner cylinder is composed of two symmetrical half-cylinder structures.
7. The motorized integrated biopsy needle according to claim 1, characterized in that: The outer cylinder is provided with a clamping hole, and the inner cylinder is fixed with an elastic protrusion which is clamped into the clamping hole.
8. The motorized integrated biopsy needle according to claim 1, characterized in that: The tail of the excitation button is provided with a pressing portion, and an elastic reset structure is provided between the pressing portion and the inner tube.
9. The motorized integrated biopsy needle according to claim 5, characterized in that: The buffer members are symmetrically arranged in two groups.
10. The motorized integrated biopsy needle according to claim 3, characterized in that: The front shell is provided with a needle outlet tube, the inner needle rod and the outer needle tube both extend out of the needle outlet tube, and a protective sheath is sleeved on the needle outlet tube.