CN219963023U - Adjustable puncture biopsy needle - Google Patents
Adjustable puncture biopsy needle Download PDFInfo
- Publication number
- CN219963023U CN219963023U CN202321333788.9U CN202321333788U CN219963023U CN 219963023 U CN219963023 U CN 219963023U CN 202321333788 U CN202321333788 U CN 202321333788U CN 219963023 U CN219963023 U CN 219963023U
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- CN
- China
- Prior art keywords
- wall
- block
- device body
- needle
- rack
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- 238000001574 biopsy Methods 0.000 title claims abstract description 22
- 230000000670 limiting effect Effects 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 210000000078 claw Anatomy 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 238000005070 sampling Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Abstract
The utility model discloses an adjustable puncture biopsy needle, which relates to the technical field of biological sampling, and comprises a device body, a rack and a mounting shaft, wherein a battery is mounted on the inner wall of one side of the device body, a first electromagnetic block is mounted on one side of the battery, a first reset spring is mounted on one side of the first electromagnetic block, one side of the first reset spring is connected with a second electromagnetic block, one side of the second electromagnetic block is connected with a limiting plate, the outer wall of one side of the limiting plate is connected with an outer needle, the outer wall of one side of a mounting head is connected with an inner needle, the top end of a moving block is provided with the rack, and a meshing transmission structure is formed between the gear and the rack. According to the utility model, the moving rod is utilized to move to the right, the locking rod simultaneously moves the rod to be far away from the locking groove of the mounting shaft, then the gear is rotated, and the gear is meshed with the rack, so that the rack drives the moving block and the inner needle to move left and right, the puncture position of the inner needle can be conveniently adjusted according to the size of a target object, and the problem of inconvenient adjustment is solved.
Description
Technical Field
The utility model relates to the technical field of biological sampling, in particular to an adjustable puncture biopsy needle.
Background
The biopsy needle is used for extracting samples from organ tissues possibly diseased in a patient, whether the lesion is detected through biopsy assay, the patient wound is small, the patient is painful through biopsy needle sampling, the extraction speed is high and accurate, the biopsy needle is convenient to use, the current biopsy needle is various in style and various in function, the current biopsy needle is inconvenient to adjust according to the size of a target object, vibration can be generated in the device work, and accordingly the sampling needle shakes in the skin, and the sampling position can be deviated.
Through retrieving, chinese patent grant bulletin number CN214966378U, bulletin day 2021, 02 month 06, disclose adjustable puncture biopsy needle, propose "medical personnel rotate adjust knob 54, adjust knob 54's rotation can drive gear 58 and rotate, gear 58's rotation drive rack 56 removes, realize adjusting dog 52 in adjusting slot 12's position, the size that the sampling slot can show is adjusted in advance according to the size of target object, can take a sample," do not have the structure of adjust knob locking, the maloperation makes adjust knob rotate after, make the sampling position inaccurate, in view of this, the intensive study is to above-mentioned problem, the scheme has been produced.
Disclosure of Invention
The utility model aims to provide an adjustable puncture biopsy needle, which solves the problem that the prior adjustable puncture biopsy needle is not locked in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a puncture biopsy needle with adjustable, includes device body, rack and installation axle, the switch is installed to the below of device body one side, the battery is installed to one side inner wall of device body, and installs first electromagnetism piece in one side of battery, first reset spring is installed to one side of first electromagnetism piece, and one side of first reset spring is connected with the second electromagnetism piece, one side of second electromagnetism piece is connected with the limiting plate, one side outer wall connection of limiting plate has the outer needle, the movable block is installed to one side of limiting plate, the installation head is installed to the inboard of movable block, one side outer wall connection of installation head has the inner needle, the rack is installed on the top of movable block, the inner wall on device body top is connected with the installation axle through the bearing, and installs the gear in the outer wall of installation axle, form meshing transmission structure between gear and the rack.
Preferably, one end of the outer needle extends to the outer side of the device body through the moving block and the mounting head, and the inner needle is arranged at the inner side of the outer needle.
By adopting the technical scheme, the outer needle can move in the moving block and the mounting head, and the inner needle always moves in the outer needle at the same time when the moving block moves on the outer needle.
Preferably, an outer expanding piece is uniformly arranged on the outer wall of one side of the mounting head, and an inner expanding claw matched with the outer expanding piece is uniformly arranged on the outer wall of one side of the moving block.
By adopting the technical scheme, the inner needle is more firmly installed and is not easy to shake by clamping the outer expanding piece by the inner expanding claw.
Preferably, the inner walls of the two sides of the moving block are uniformly provided with elastic rubber blocks, and the outer wall of the mounting head is provided with grooves matched with the elastic rubber blocks.
By adopting the technical scheme, the device is stable to use by realizing the damping and buffering effects on the vibration force through the elasticity and the elasticity of the elastic rubber block.
Preferably, the inner wall of the device body is provided with a sliding groove, the bottom end of the moving block is movably connected with the sliding groove through a sliding block, and two ends of the limiting plate are connected with the sliding groove through the sliding block.
By adopting the technical scheme, the sliding block moves in the sliding groove when the moving block and the limiting plate move, so that the supporting and limiting effects are realized.
Preferably, the second reset spring is installed to the inner wall on device body top, and one side of second reset spring is connected with the movable block, the top of movable block is connected with the movable rod, one side of movable block is connected with the locking lever, the outer wall of installation axle is provided with the locked groove with locking lever matched with.
By adopting the technical scheme, the locking rod can move left and right through the telescopic reset property of the second reset spring, so that locking and adjustment are realized.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The utility model provides a gear, a rack and a moving block, wherein the moving rod is utilized to move to the right, the locking rod simultaneously moves the rod to be far away from a locking groove of the mounting shaft, then the gear is rotated to be meshed with the rack, so that the rack drives the moving block and the inner needle to move left and right, the puncture position of the inner needle is conveniently adjusted according to the size of a target object, and the problem of inconvenient adjustment is solved;
(2) The utility model provides a device body, an elastic rubber block and an inner needle, wherein the device body is used for generating vibration, and the elastic rubber block has a certain damping and buffering effect on vibration through the telescopic elasticity of the elastic rubber block, so that the vibration of the inner needle is reduced, and the inner needle is more firmly installed and is not easy to shake through the clamping of an outer expanding piece by an inner expanding claw, so that the problem of unstable vibration is solved.
(3) The utility model provides an inner needle, a second reset spring and a gear, when the position of the inner needle is fixed, the moving rod is loosened, the second reset spring resets the movable block to drive the locking rod to reset to the left side, the locking rod is clamped into a locking groove of the mounting shaft to lock the gear, the gear is prevented from rotating due to misoperation, the puncture position is moved, and the problem of avoiding misoperation is solved.
Drawings
FIG. 1 is a schematic cross-sectional view of a device body according to the present utility model;
FIG. 2 is a schematic view of a three-dimensional structure of a device body according to the present utility model;
FIG. 3 is a schematic top view of a gear according to the present utility model;
fig. 4 is an enlarged schematic view of the structure of fig. 1 at a.
In the figure: 1. an inner needle; 2. a mounting head; 3. a moving block; 4. an outer needle; 5. a limiting plate; 6. a switch; 7. a device body; 8. a first electromagnetic block; 9. a battery; 10. a first return spring; 11. a second electromagnetic block; 12. a rack; 13. a groove; 14. an elastic rubber block; 15. an outer expansion piece; 16. inner expanding claws; 17. a gear; 18. a moving rod; 19. a locking lever; 20. a second return spring; 21. a movable block; 22. and (5) mounting a shaft.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1: referring to fig. 1-4, an adjustable biopsy needle comprises a device body 7, a rack 12 and a mounting shaft 22, wherein a switch 6 is arranged below one side of the device body 7, a battery 9 is arranged on the inner wall of one side of the device body 7, a first electromagnetic block 8 is arranged on one side of the battery 9, a first return spring 10 is arranged on one side of the first electromagnetic block 8, one side of the first return spring 10 is connected with a second electromagnetic block 11, one side of the second electromagnetic block 11 is connected with a limiting plate 5, one side outer wall of the limiting plate 5 is connected with an outer needle 4, one side of the limiting plate 5 is provided with a moving block 3, the inner side of the moving block 3 is provided with a mounting head 2, one side outer wall of the mounting head 2 is connected with an inner needle 1, the top end of the moving block 3 is provided with the rack 12, the inner wall of the top end of the device body 7 is connected with the mounting shaft 22 through a bearing, the outer wall of the mounting shaft 22 is provided with a gear 17, and a meshing transmission structure is formed between the gear 17 and the rack 12;
specifically, as shown in fig. 1, 2 and 4, when the structure is used, the locking lever 19 is moved away from the locking groove of the mounting shaft 22 by moving the moving lever 18 to the right, and then the gear 17 is rotated, and the gear 17 is meshed with the gear rack 12, so that the gear rack 12 drives the moving block 3 and the inner needle 1 to move left and right, thereby facilitating the adjustment of the puncture position of the inner needle 1 according to the size of the target.
Example 2: one end of the outer needle 4 extends to the outside of the device body 7 through the moving block 3 and the mounting head 2, and the inner needle 1 is arranged at the inside of the outer needle 4;
the outer wall of one side of the mounting head 2 is uniformly provided with an outer expanding piece 15, and the outer wall of one side of the moving block 3 is uniformly provided with an inner expanding claw 16 matched with the outer expanding piece 15;
elastic rubber blocks 14 are uniformly arranged on the inner walls of the two sides of the moving block 3, and grooves 13 matched with the elastic rubber blocks 14 are formed in the outer walls of the mounting heads 2;
the inner wall of the device body 7 is provided with a chute, the bottom end of the moving block 3 is movably connected with the chute through a sliding block, and two ends of the limiting plate 5 are connected with the chute through the sliding block;
specifically, as shown in fig. 1, when the structure is used, vibration is generated through the operation of the device body 7, and the vibration is buffered to a certain extent through the telescopic elasticity of the elastic rubber block 14, so that the vibration of the inner needle 1 is reduced, and the inner needle 1 is firmly installed and is not easy to shake through the clamping of the inner expanding claw 16 to the outer expanding piece 15.
Example 3: the inner wall at the top end of the device body 7 is provided with a second reset spring 20, one side of the second reset spring 20 is connected with a movable block 21, the top end of the movable block 21 is connected with a movable rod 18, one side of the movable block 21 is connected with a locking rod 19, and the outer wall of the mounting shaft 22 is provided with a locking groove matched with the locking rod 19;
specifically, as shown in fig. 1, 3 and 4, when the structure is used, after the position of the inner needle 1 is fixed, the moving rod 18 is released, the second return spring 20 returns to enable the movable block 21 to drive the locking rod 19 to return to the left, the locking rod 19 is clamped into the locking groove of the mounting shaft 22, the gear 17 is locked, and the gear 17 is prevented from rotating due to misoperation, so that the puncture position is moved.
Working principle: when the device is used, firstly, medical staff holds the device body 7, then inserts the outer needle 4 into a body sampling position, then moves the inner needle 1 to insert into a target object, electrifies the second electromagnetic block 11 and the first electromagnetic block 8 by pressing the switch 6, electrifies one surface of the second electromagnetic block 11 opposite to the first electromagnetic block 8, drives the outer needle 4 to move to one side far away from the first electromagnetic block 8 after electrifies the second electromagnetic block 11, the first reset spring 10 is stretched and deformed, then the outer needle 4 is inserted into the target object, cuts the target object, leaves a sample in a groove at the front end of the inner needle 1, then takes out the device, presses the switch 6 to cut off the second electromagnetic block 11 and the first electromagnetic block 8, resets the first reset spring 10 to enable the outer needle 4 to move to the original position, exposes the sample in the groove of the inner needle 1, and takes out the sample for biopsy;
the first innovation point implements the steps of:
by moving the moving rod 18 to the right, the locking rod 19 is simultaneously moved away from the locking groove of the mounting shaft 22, then the gear 17 is rotated, and the gear 17 is meshed with the rack 12, so that the rack 12 drives the moving block 3 and the inner needle 1 to move left and right, and the puncture position of the inner needle 1 is conveniently adjusted according to the size of a target object.
The second innovation point implementation step:
after the position of the inner needle 1 is fixed, the moving rod 18 is loosened, the second return spring 20 returns to enable the movable block 21 to drive the locking rod 19 to return to the left, the locking rod 19 is clamped into the locking groove of the mounting shaft 22, the gear 17 is locked, misoperation is avoided, the gear 17 is rotated, and the puncture position is moved.
The third innovation point implementation step:
the first step: vibration is generated through the operation of the device body 7, and the elastic rubber block 14 has a certain damping and buffering effect on the vibration through the telescopic elasticity, so that the vibration of the inner needle 1 is reduced;
and a second step of: and the inner expanding claw 16 clamps the outer expanding piece 15, so that the inner needle 1 is more firmly installed and is not easy to shake.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a puncture biopsy needle with adjustable, includes device body (7), rack (12) and installation axle (22), its characterized in that: the device is characterized in that a switch (6) is arranged below one side of the device body (7), a battery (9) is arranged on the inner wall of one side of the device body (7), a first electromagnetic block (8) is arranged on one side of the battery (9), a first reset spring (10) is arranged on one side of the first electromagnetic block (8), a second electromagnetic block (11) is connected to one side of the first reset spring (10), a limiting plate (5) is connected to one side of the second electromagnetic block (11), an outer needle (4) is connected to one side outer wall of the limiting plate (5), a moving block (3) is arranged on one side of the limiting plate (5), a mounting head (2) is arranged on the inner side of the moving block (3), a rack (12) is arranged on the top end of the moving block (3), a mounting shaft (22) is connected to the inner wall of the top end of the device body (7) through a bearing, a gear (17) is arranged on the outer wall of the mounting shaft (22), and a transmission structure is formed between the gear (17) and the rack (12).
2. An adjustable biopsy needle according to claim 1, wherein: one end of the outer needle (4) penetrates through the moving block (3) and the mounting head (2) to extend to the outer side of the device body (7), and the inner needle (1) is arranged on the inner side of the outer needle (4).
3. An adjustable biopsy needle according to claim 1, wherein: the outer wall of one side of the mounting head (2) is uniformly provided with an outer expanding piece (15), and the outer wall of one side of the moving block (3) is uniformly provided with an inner expanding claw (16) matched with the outer expanding piece (15).
4. An adjustable biopsy needle according to claim 1, wherein: elastic rubber blocks (14) are uniformly arranged on the inner walls of the two sides of the moving block (3), and grooves (13) matched with the elastic rubber blocks (14) are formed in the outer walls of the mounting heads (2).
5. An adjustable biopsy needle according to claim 1, wherein: the inner wall of the device body (7) is provided with a sliding groove, the bottom end of the moving block (3) is movably connected with the sliding groove through a sliding block, and two ends of the limiting plate (5) are connected with the sliding groove through sliding blocks.
6. An adjustable biopsy needle according to claim 1, wherein: the device is characterized in that a second reset spring (20) is arranged on the inner wall of the top end of the device body (7), one side of the second reset spring (20) is connected with a movable block (21), the top end of the movable block (21) is connected with a movable rod (18), one side of the movable block (21) is connected with a locking rod (19), and the outer wall of the mounting shaft (22) is provided with a locking groove matched with the locking rod (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321333788.9U CN219963023U (en) | 2023-05-30 | 2023-05-30 | Adjustable puncture biopsy needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321333788.9U CN219963023U (en) | 2023-05-30 | 2023-05-30 | Adjustable puncture biopsy needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219963023U true CN219963023U (en) | 2023-11-07 |
Family
ID=88588550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321333788.9U Active CN219963023U (en) | 2023-05-30 | 2023-05-30 | Adjustable puncture biopsy needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219963023U (en) |
-
2023
- 2023-05-30 CN CN202321333788.9U patent/CN219963023U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |