Attraction biopsy needle
By designing fixed mechanisms and dustproofing mechanisms in attracting biopsy needles, the problem of sample absorption of difficulty and sample pollution was solved, and the effect of improving operational efficiency and sample quality was achieved.
Patent Information
- Application Number
- CN202420550541.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-03-20
AI Technical Summary
When the existing suction biopsy needles absorb samples, the sample is dense and makes it difficult to absorb, the sample enters the needle tube slowly, and the long-term pulling of the pull rod leads to fatigue in the hand, affecting the operation efficiency.
A designed type of attractive biopsy, including a fixed mechanism and dustproof mechanism. The fixed mechanism is fixed to the tie rod through the cooperation of the card board and the card slot to reduce the driving time; the dustproof mechanism is closed at the bottom of the sampling pipe through the cooperation of the thread block and the protective cap to prevent external objects from entering.
The time of pulling the pull rod by fixed institutions is reduced, and hand acid is avoided, and the operating efficiency is improved; the dustproof mechanism is used to prevent sample pollution and improve the sample quality.
Smart Images
Figure CN222398483U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical detection, and more specifically, to a suction biopsy needle. Background Art
[0002] A suction biopsy needle is a medical device used to obtain tissue samples, usually for pathological examination to determine the nature and extent of the disease. The suction biopsy needle consists of a biopsy needle body, an induction needle and a needle sleeve, and can be used once. The advantages of the suction biopsy needle are that it is easy to operate, less traumatic, and recovers quickly, and it can obtain enough tissue samples for pathological examination. However, since the suction biopsy needle relies on the doctor's experience and skills to operate, the doctor needs to have the corresponding professional knowledge and skills to ensure the accuracy and safety of the operation.
[0003] When a general device draws a sample, it first places the suction head into the sample. If the pull rod is pulled to create a vacuum negative pressure inside the syringe, the sample will enter the syringe from the suction head. However, since the sample is concentrated, it is difficult to draw, so the sample enters the syringe slowly. To extract the desired amount of sample, it is necessary to keep pulling the pull rod, which will cause hand fatigue after a long time. Therefore, it needs to be modified and optimized. Utility Model Content
[0004] In order to overcome the deficiencies of the prior art, the utility model provides a suction biopsy needle, which has the advantages of fixation and protection.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a suction biopsy needle, comprising a syringe, a needle tube, a joint, and a sampling tube; the needle tube is fixedly arranged below the syringe, the joint is fixedly arranged below the needle tube, and the sampling tube is fixedly arranged below the joint;
[0006] A fixing mechanism, fixedly arranged on one side of the interior of the syringe;
[0007] The fixing mechanism includes a base plate fixedly arranged on one side of the inside of the syringe, a spring three is fixedly installed above the base plate, a clamping block is fixedly installed above the spring three, a movable handle is fixedly installed above the clamping block, a groove is provided on the side of the syringe, a limit block is movably installed inside the groove, a spring two is fixedly installed on one side of the limit block, the other end of the spring two is fixedly connected to the syringe, and a clamping plate is fixedly installed below the clamping block.
[0008] As a preferred technical solution of the utility model, the dustproof mechanism is movably sleeved on the top of the sampling tube;
[0009] The dustproof mechanism includes a threaded block movably sleeved on the top of the sampling tube, a fixed block is rotatably installed on the side of the threaded block, a protective cover is fixedly installed on the top of the fixed block, a spring 1 is fixedly installed on the bottom of the protective cover, and the other end of the spring 1 is fixedly connected to the bottom of the threaded block.
[0010] As a preferred technical solution of the utility model, it also includes:
[0011] The pulling mechanism is fixedly arranged inside the syringe;
[0012] The pulling mechanism includes an isolation plate fixedly arranged inside the syringe, the isolation plate is located below the clamping block, a piston is movably installed inside the syringe, a pull rod is fixedly installed above the piston, the pull rod movably passes through the upper end of the syringe, a handle 2 is fixedly installed above the pull rod, and a clamping groove is provided on the side of the pull rod.
[0013] As a preferred technical solution of the utility model, it also includes a detection strip fixedly arranged inside the sampling tube, and the detection strip extends from the bottom of the sampling tube through the inside of the sampling tube to the connection between the joint and the sampling tube.
[0014] As a preferred technical solution of the utility model, it also includes a handle 1 fixedly arranged on the side of the syringe, and the shape of the handle 1 is the same as that of the movable handle.
[0015] As a preferred technical solution of the utility model, a thread is provided at the connection between the sampling tube and the threaded block, and extends to the bottom of the sampling tube.
[0016] As a preferred technical solution of the utility model, the fixed block, the spring 1 and the protective cover in the dustproof mechanism are provided in two pieces and are respectively located on both sides of the sampling tube.
[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0018] 1. The utility model pulls the piston to the specified position by pulling the second handle, and then presses the movable handle, which will drive the block to move downward, drive the card plate to move downward and enter the interior of the pull rod, and the second spring will push the limit block into the middle of the block and the movable handle due to its elasticity. Compared with the traditional device, the device can fix the pull rod through the cooperation between the card plate and the card slot, reduce the time for the staff to pull the pull rod, avoid holding the pull rod for a long time, causing hand fatigue, and improve the working efficiency of the device.
[0019] 2. The utility model rotates the threaded block, and as the threaded block rotates, the threaded block moves downward. When the threaded block drops to the bottom of the sampling tube and when the two protective covers are connected to each other, the threaded block can be stopped, and the bottom of the sampling tube is sealed. Compared with the traditional device, the device can isolate the bottom opening of the sampling tube from the outside world through the mutual cooperation between the spring 1 and the protective cover, thereby preventing external objects from entering the interior of the sampling tube, thereby contaminating the sample extracted into the sampling tube, affecting the quality of the sample, and improving the working efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the structure of the utility model;
[0021] Figure 2 For this utility model Figure 1 A local enlarged schematic diagram of point A;
[0022] Figure 3 This is a schematic diagram of the internal cross-section mechanism of the utility model;
[0023] Figure 4 For this utility model Figure 3 A local enlarged schematic diagram of point B;
[0024] Figure 5 It is a schematic diagram of the side structure of the utility model;
[0025] Figure 6 For this utility model Figure 5 A partial enlarged schematic diagram of point C.
[0026] In the figure: 1. syringe; 2. needle tube; 3. connector; 4. sampling tube; 5. threaded block; 6. fixed block; 7. spring one; 8. protective cover; 9. detection strip; 10. handle one; 11. movable handle; 12. clamping block; 13. groove; 14. spring two; 15. limit block; 16. bottom plate; 17. spring three; 18. clamping plate; 19. pull rod; 20. piston; 21. isolation plate; 22. handle two; 23. clamping slot. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] like Figures 1 to 6As shown, the utility model provides a suction biopsy needle, comprising a syringe 1, a needle tube 2, a joint 3, and a sampling tube 4; the needle tube 2 is fixedly arranged below the syringe 1, the joint 3 is fixedly arranged below the needle tube 2, and the sampling tube 4 is fixedly arranged below the joint 3;
[0029] A fixing mechanism, fixedly arranged on one side of the interior of the syringe 1;
[0030] The fixing mechanism includes a base plate 16 fixedly arranged on one side of the inside of the syringe 1, a spring three 17 is fixedly installed above the base plate 16, a clamping block 12 is fixedly installed above the spring three 17, a movable handle 11 is fixedly installed above the clamping block 12, a groove 13 is opened on the side of the syringe 1, a limit block 15 is movably installed inside the groove 13, a spring two 14 is fixedly installed on one side of the limit block 15, the other end of the spring two 14 is fixedly connected to the syringe 1, and a clamping plate 18 is fixedly installed below the clamping block 12.
[0031] When the staff pulls the piston 20 to the specified position by pulling the handle 22, the sample will enter the sampling tube 4, and then the movable handle 11 will be pressed. When the movable handle 11 is pressed, the block 12 will be driven to move downward, and the spring 3 17 will be compressed. When the block 12 moves downward, the card plate 18 will be driven to move downward. When the card plate 18 enters the interior of the pull rod 19, the spring 2 14 will push the limit block 15 into the middle of the block 12 and the movable handle 11 due to its elasticity. When the card plate 18 needs to be moved upward, it only needs to pull the limit block 15 upward, and the spring 3 17 will drive the movable handle 11 back to its original position due to its elasticity.
[0032] By pulling the handle 22 to pull the piston 20 to the specified position, and then pressing the movable handle 11, the block 12 will be driven to move downward, and the card plate 18 will be driven to move downward and enter the interior of the pull rod 19. The spring 2 14 will push the limit block 15 into the middle of the block 12 and the movable handle 11 due to its elasticity. Compared with the traditional device, the device can fix the pull rod 19 through the cooperation between the card plate 18 and the card slot 23, reducing the time for the staff to pull the pull rod 19, avoiding long-term holding of the pull rod 19, causing hand fatigue, and improving the working efficiency of the device.
[0033] The device also includes: a dust-proof mechanism, which is movably sleeved on the top of the sampling tube 4;
[0034] The dustproof mechanism includes a threaded block 5 movably sleeved on the top of the sampling tube 4, a fixed block 6 is rotatably installed on the side of the threaded block 5, a protective cover 8 is fixedly installed on the top of the fixed block 6, a spring 7 is fixedly installed on the bottom of the protective cover 8, and the other end of the spring 7 is fixedly connected to the bottom of the threaded block 5.
[0035] When the staff has finished using the device, they first rotate the thread block 5. When the thread block 5 rotates, since the connection between the thread block 5 and the sampling tube 4 is provided with threads, the thread block 5 will move downward as the thread block 5 rotates. When the thread block 5 moves downward, it will drive the fixed block 6, the spring 7, and the protective cover 8 to descend. When the thread block 5 descends to the bottom of the sampling tube 4, the spring 7 will pull the protective cover 8 around the connection between the fixed block 6 and the thread block 5 to the bottom of the sampling tube 4 due to the tension. When the two protective covers 8 are connected to each other, the thread block 5 can be stopped from rotating, and the device can be placed.
[0036] By rotating the thread block 5, the thread block 5 will move downward as the thread block 5 rotates. When the thread block 5 drops to the bottom of the sampling tube 4 and when the two protective covers 8 are connected to each other, the thread block 5 can be stopped from rotating. At this time, the bottom of the sampling tube 4 is closed. Compared with the traditional device, the device can isolate the bottom opening of the sampling tube 4 from the outside world through the mutual cooperation between the spring 1 7 and the protective cover 8, thereby preventing external objects from entering the interior of the sampling tube 4, thereby contaminating the sample extracted into the sampling tube 4, affecting the quality of the sample, and improving the working efficiency of the device.
[0037] Among them, it also includes: a pulling mechanism, fixedly arranged inside the syringe 1;
[0038] The pulling and pulling mechanism includes an isolation plate 21 fixedly arranged inside the syringe 1, the isolation plate 21 is located below the blocking block 12, a piston 20 is movably installed inside the syringe 1, a pull rod 19 is fixedly installed above the piston 20, the pull rod 19 movably passes through the upper end of the syringe 1, a handle 22 is fixedly installed above the pull rod 19, and a card slot 23 is opened on the side of the pull rod 19.
[0039] By pulling the handle 22 upward, the piston 20 moves upward, so that the sample is drawn up by the principle of vacuum negative pressure.
[0040] The detection strip 9 is also fixedly arranged inside the sampling tube 4 . The detection strip 9 extends from the bottom of the sampling tube 4 through the inside of the sampling tube 4 to the connection between the joint 3 and the sampling tube 4 .
[0041] The content of the sample inside the sampling tube 4 can be detected by the detection strip 9, thereby improving the working efficiency of the device.
[0042] The syringe 1 further includes a handle 10 fixedly arranged on the side of the syringe 1 , and the shape of the handle 10 is the same as that of the movable handle 11 .
[0043] This allows the staff to have a better grip when holding the device, making it more stable when holding the device.
[0044] A thread is provided at the connection between the sampling tube 4 and the thread block 5 and extends to the bottom of the sampling tube 4 .
[0045] The protective mechanism can be better fixed on the sampling tube 4 through the threads at the connection between the sampling tube 4 and the threaded block 5 .
[0046] There are two fixed blocks 6, two springs 7 and two protective covers 8 in the dustproof mechanism, which are respectively located on both sides of the sampling tube 4.
[0047] The opening at the bottom of the sampling tube 4 can be better blocked to prevent external objects other than samples from entering the interior of the sampling tube 4 .
[0048] The working principle and use process of this utility model:
[0049] When the staff pulls the piston 20 to the specified position by pulling the handle 22, the sample will enter the sampling tube 4, and then the movable handle 11 will be pressed. When the movable handle 11 is pressed, the block 12 will be driven to move downward, and the spring 3 17 will be compressed. When the block 12 moves downward, the card plate 18 will be driven to move downward. When the card plate 18 enters the interior of the pull rod 19, the spring 2 14 will push the limit block 15 into the middle of the block 12 and the movable handle 11 due to its elasticity. When the card plate 18 needs to be moved upward, it only needs to pull the limit block 15 upward, and the spring 3 17 will drive the movable handle 11 back to its original position due to its elasticity.
[0050] When the staff has finished using the device, they first rotate the thread block 5. When the thread block 5 rotates, since the connection between the thread block 5 and the sampling tube 4 is provided with threads, the thread block 5 will move downward as the thread block 5 rotates. When the thread block 5 moves downward, it will drive the fixed block 6, the spring 7, and the protective cover 8 to descend. When the thread block 5 descends to the bottom of the sampling tube 4, the spring 7 will pull the protective cover 8 around the connection between the fixed block 6 and the thread block 5 to the bottom of the sampling tube 4 due to the tension. When the two protective covers 8 are connected to each other, the thread block 5 can be stopped from rotating, and the device can be placed.
[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0052] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A suction biopsy needle, comprising a syringe (1), a needle tube (2), a joint (3), and a sampling tube (4); characterized in that: The needle tube (2) is fixedly arranged below the syringe (1), the joint (3) is fixedly arranged below the needle tube (2), and the sampling tube (4) is fixedly arranged below the joint (3); A fixing mechanism fixedly arranged on one side of the interior of the syringe (1); The fixing mechanism comprises a bottom plate (16) fixedly arranged on one side of the inside of the syringe (1), a spring three (17) fixedly installed above the bottom plate (16), a clamping block (12) fixedly installed above the spring three (17), a movable handle (11) fixedly installed above the clamping block (12), a groove (13) is provided on the side of the syringe (1), a limit block (15) is movably installed inside the groove (13), a spring two (14) is fixedly installed on one side of the limit block (15), the other end of the spring two (14) is fixedly connected to the syringe (1), and a clamping plate (18) is fixedly installed below the clamping block (12).
2. The suction biopsy needle according to claim 1, characterized in that: Also included are: A dustproof mechanism, movably sleeved on the top of the sampling tube (4); The dustproof mechanism comprises a threaded block (5) movably sleeved on the top of the sampling tube (4); a fixed block (6) is rotatably mounted on the side of the threaded block (5); a protective cover (8) is fixedly mounted on the top of the fixed block (6); a spring (7) is fixedly mounted on the bottom of the protective cover (8); and the other end of the spring (7) is fixedly connected to the bottom of the threaded block (5).
3. The suction biopsy needle according to claim 1, characterized in that: Also included are: A pulling mechanism, fixedly arranged inside the syringe (1); The pulling and pulling mechanism includes an isolation plate (21) fixedly arranged inside the syringe (1), the isolation plate (21) is located below the block (12), a piston (20) is movably installed inside the syringe (1), a pull rod (19) is fixedly installed above the piston (20), the pull rod (19) movably passes through the upper end of the syringe (1), a handle 2 (22) is fixedly installed above the pull rod (19), and a slot (23) is provided on the side of the pull rod (19).
4. The suction biopsy needle according to claim 1, characterized in that: It also comprises a detection strip (9) fixedly arranged inside the sampling tube (4), wherein the detection strip (9) extends from the bottom of the sampling tube (4) through the inside of the sampling tube (4) to the connection between the joint (3) and the sampling tube (4).
5. The suction biopsy needle according to claim 1, characterized in that: It also includes a handle (10) fixedly arranged on the side of the syringe (1), and the shape of the handle (10) is the same as that of the movable handle (11).
6. The suction biopsy needle according to claim 1, characterized in that: The connection between the sampling tube (4) and the threaded block (5) is provided with a thread, which extends to the bottom of the sampling tube (4).
7. The suction biopsy needle according to claim 2, characterized in that: The dustproof mechanism includes two fixed blocks (6), two springs (7) and two protective covers (8), which are respectively located on two sides of the sampling tube (4).