Biopsy forceps electrode crimping tool
By designing a buffer and stamping unit for the biopsy forceps electrode crimping fixture, the problem of uneven force during electrode assembly is solved, achieving stable and uniform assembly of the electrode blocks and avoiding bending and damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN DIHUA TECH CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-05-19
AI Technical Summary
Existing biopsy forceps are prone to bending or damage during electrode assembly due to uneven force, and the existing process relies on manual clamping, which leads to uneven force.
The biopsy forceps electrode crimping fixture includes a gripping base, a buffer unit, and a stamping unit. The buffer block supports both ends of the electrode block, and the stamping end applies force to ensure that the electrode block is evenly stressed. Combined with the snap-fit groove and guide part, it ensures stable assembly.
This effectively avoids bending or damage to the electrode blocks due to uneven force during assembly, ensuring uniform force on the electrode blocks and improving the stability and success rate of assembly.
Smart Images
Figure CN224254663U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a biopsy forceps electrode crimping tool. Background Technology
[0002] Existing biopsy forceps require internal fixation of metal electrodes. After the metal electrode crimping and fixing process is completed, the metal electrode block needs to be assembled into the handle of the biopsy forceps. However, the existing method involves manually clamping the electrode block directly into the handle of the biopsy forceps and using the slots on the handle to press the electrode block into place. This method is prone to uneven stress on the electrode block during assembly, which can easily lead to bending or even damage. Therefore, there is an urgent need for a crimping tool that can apply force evenly to the electrode block and stably assemble it into the handle of the biopsy forceps. Utility Model Content
[0003] The purpose of this utility model is to provide a biopsy forceps electrode crimping fixture to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.
[0004] The solution to the technical problem of this utility model is:
[0005] A biopsy forceps electrode crimping fixture is applied to a gripping base. The gripping base includes a first base and a second base. Both the first base and the second base are hollow structures. The first base is mounted on one side of the second base. A first opening is provided above the first base, and a second opening is provided above the second base. The first base and the second base are connected by a mounting groove, and a third opening is provided above the mounting groove.
[0006] The biopsy forceps electrode crimping fixture includes:
[0007] Mounting base, the grip base is mounted on the mounting base;
[0008] A buffer unit includes a first buffer block and a second buffer block, wherein the first buffer block is disposed at the first opening and the second buffer block is disposed at the second opening.
[0009] A stamping unit having a stamping end that is movable and positioned relative to the mounting base in a vertical direction, and that is movable to enter the third opening.
[0010] This technical solution has at least the following beneficial effects: When assembling the electrode block, the electrode block is placed on the holding seat through the first opening, the third opening, and the second opening. At this time, the two ends of the electrode block abut against the first buffer block and the second buffer block through the first opening and the second opening, respectively. Then, the stamping end moves down, presses and squeezes the electrode block, so that the electrode block can enter the mounting groove through the third opening. During this process, the first buffer block and the second buffer block support the two ends of the electrode block, and the stamping end applies force to the electrode block at the third opening, so that the upper and lower sides of the electrode block can be evenly stressed during the assembly process. Compared with the uneven stress caused by manual direct clamping, this greatly reduces the possibility of the electrode block bending or even being damaged due to stress problems.
[0011] As a further improvement to the above technical solution, the mounting base is provided with a first snap-fit groove and a second snap-fit groove, the first base is snapped into the first snap-fit groove, and the second base is snapped into the second snap-fit groove.
[0012] The first and second locking slots are precisely matched with the first and second bases of the grip, respectively, achieving accurate positioning of the grip on the mounting base and effectively preventing displacement or shaking of the grip during electrode block assembly.
[0013] As a further improvement to the above technical solution, the mounting base is provided with a support groove, and the end of the first buffer block away from the first base extends out of the first base and is installed at the position of the support groove.
[0014] To facilitate the removal of the first buffer block from the bottom of the electrode block after assembly, the above-mentioned technical solution extends the first buffer block outside the first substrate. By setting a support groove, the first buffer block outside the first substrate is supported, thereby improving the stability of the first buffer block during support.
[0015] As a further improvement to the above technical solution, the second buffer block extends along the length direction of the second substrate and extends out of the second substrate.
[0016] By adopting the above technical solution, the second buffer block extends directly out of the second substrate. When assembling the electrode block, the second buffer block can be directly extracted from the second substrate, thus separating the buffer unit from the holder.
[0017] As a further improvement to the above technical solution, the horizontal height of the first buffer block and the horizontal height of the second buffer block are equal.
[0018] By adopting the above technical solution, the supporting forces from the buffer block at both ends of the electrode block are equal in magnitude and consistent in direction during the assembly process. When the stamping end applies force to the electrode block, the resultant force on the electrode block in the vertical direction can be evenly distributed, effectively avoiding bending deformation caused by different force directions and uneven magnitudes.
[0019] As a further improvement to the above technical solution, the stamping unit includes a driving component and a stamping sheet. The driving component can drive the stamping sheet to move and position in the vertical direction. The stamping end is the downward-facing end of the stamping sheet. The first direction is the communication direction between the first opening and the second opening on the horizontal plane. The stamping sheet extends in the first direction.
[0020] By adopting the above technical solution, during electrode block assembly, the operator can precisely control the distance and force of the stamping plate downward movement through the drive component according to actual needs, ensuring that the stamping end can accurately apply force to the electrode block and smoothly press the electrode block into the mounting groove.
[0021] As a further improvement to the above technical solution, the stamping sheet is provided with a first guide portion on both sides of the horizontal direction perpendicular to the first direction, and the two first guide portions on the sides that are far apart from each other gradually approach each other from top to bottom.
[0022] By adopting the above technical solution, the first guide part provides precise guidance for the stamping sheet to enter the third opening. During the downward movement of the stamping sheet, the first guide part can slide naturally along the edge of the third opening, effectively guiding the stamping sheet to align with the center position of the third opening, avoiding collision or jamming between the stamping sheet and the edge of the third opening, ensuring that the stamping sheet can smoothly enter the third opening to apply force to the electrode block, and ensuring the smooth progress of the entire assembly process.
[0023] As a further improvement to the above technical solution, the mounting groove is provided with second guide portions on both sides of the third opening along the first direction, and the sidewalls of the two second guide portions gradually approach each other from top to bottom.
[0024] By adopting the above technical solution, when pressing, the electrode block is placed between the two second guide parts, and then the stamping end is started to stamp. Under the guidance of the two second guide parts, the electrode block can stably enter the third opening and be snapped into the mounting groove.
[0025] As a further improvement to the above technical solution, two clamping parts are respectively provided on both sides of the lower end of the stamping sheet along the first direction, and the sidewalls of the two clamping parts that are close to each other gradually move away from each other in the direction from top to bottom.
[0026] By adopting the above technical solution, during assembly, the electrode block is tightly clamped between the clamping parts with the upward end facing up. During the stamping process, the clamping parts form a stable clamping force on the electrode block, effectively preventing the electrode block from detaching from the stamping sheet and ensuring that the stamping sheet can stably transmit pressure to the electrode block.
[0027] As a further improvement to the above technical solution, the stamping sheet can be detachably installed on the drive assembly. Through the detachable connection between the stamping sheet and the drive assembly, engineers can install stamping sheets of different lengths when assembling electrode blocks of different specifications, allowing the stamping sheet to be adapted to electrode blocks of different specifications for crimping. Attached Figure Description
[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.
[0029] Figure 1 This is a schematic diagram of the overall structure of the mounting base and the gripping base of this utility model when they are in a connected state;
[0030] Figure 2 This is a schematic diagram of the top structure of the mounting base and the grip base of this utility model;
[0031] Figure 3 This is a side view of the mounting base of this utility model when it is ready to be crimped.
[0032] Figure 4 yes Figure 3 Enlarged view of A in the middle;
[0033] Figure 5 This is a side view of the mounting base of this utility model after it has been crimped.
[0034] Figure Labels
[0035] 1. Mounting base; 11. First snap-fit groove; 12. Second snap-fit groove; 13. Support groove; 14. Second guide part; 2. Buffer unit; 21. First buffer block; 22. Second buffer block; 3. Stamping unit; 31. Stamping end; 32. Drive assembly; 33. Stamping piece; 34. First guide part; 35. Clamping part; 4. Grip seat; 41. First base; 411. First opening; 42. Second base; 421. Second opening; 43. Grip ring; 44. Mounting groove; 441. Third opening; 5. Electrode block. Detailed Implementation
[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0037] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0038] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0039] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0040] Existing biopsy forceps electrode assembly processes typically involve manually pressing the electrode block, which is already assembled with the conductive core wire, so that the electrode block is snapped into the biopsy forceps through an opening. The slots inside the biopsy forceps then secure the electrode block within the forceps through an interference fit. However, this processing method can easily lead to uneven stress on the electrode block on the biopsy forceps, causing the electrode block to bend.
[0041] Therefore, this application provides a biopsy forceps electrode crimping tool to facilitate the crimping of electrodes by engineers.
[0042] Reference Figure 1 and Figure 2The biopsy forceps electrode crimping fixture of this application includes a mounting base 1, a buffer unit 2, and a stamping unit 3. The biopsy forceps crimping fixture is used in conjunction with the gripping base 4 of the biopsy forceps. The gripping base 4 includes a first base 41, a second base 42, and gripping rings 43. Both the first base 41 and the second base 42 are hollow structures. The first base 41 is mounted on one side of the second base 42. The first base 41 and the second base 42 extend in the same plane and are perpendicular to each other. Gripping rings 43 are provided on both sides of the second base 42 along its length. A first opening 411 is provided above the first base 41, and a second opening 421 is provided above the second base 42. (Refer to...) Figure 3 and Figure 4 The first substrate 41 and the second substrate 42 are connected by a mounting groove 44. A third opening 441 is provided above the mounting groove 44. During assembly, the electrode block 5 is placed on the holding seat 4. The middle part of the electrode block 5 is located at the third opening 441, and the two ends of the electrode block 5 are located at the first opening 411 and the second opening 421, respectively. The cross-section of the mounting groove 44 and the cross-section of the electrode block 5 are both circular. By squeezing, the electrode block 5 is made to open the third opening 441 and be inserted into the mounting groove 44, and finally has an interference fit with the mounting groove 44.
[0043] In this embodiment, the grip 4 is mounted on the mounting base 1, and the buffer unit 2 includes a first buffer block 21 and a second buffer block 22. The first buffer block 21 is mounted at the first opening 411, and the second buffer block 22 is mounted at the second opening 421. The first buffer block 21 and the second buffer block 22 respectively support and buffer the ends of the electrode block 5 at the first opening 411 and the second opening 421.
[0044] The stamping unit 3 has a stamping end 31. The stamping end 31 can move and be positioned relative to the mounting base 1 in the vertical direction. The stamping end 31 can move to enter the third opening 441. When the stamping end 31 enters the third opening 441, the stamping end 31 abuts against and pushes the electrode block 5, so that the electrode block 5 enters the mounting groove 44 from the third opening 441.
[0045] As can be seen from the above, referring to Figure 3 and Figure 5When assembling electrode block 5, electrode block 5 is placed on the holding base 4 through the first opening 411, the third opening 441 and the second opening 421. At this time, the two ends of electrode block 5 abut against the first buffer block 21 and the second buffer block 22 through the first opening 411 and the second opening 421 respectively. Then, the stamping end 31 moves down, presses against and squeezes the electrode block 5, so that the electrode block 5 can enter the mounting groove 44 through the third opening 441. During this process, the first buffer block 21 and the second buffer block 22 support the two ends of the electrode block 5, and the stamping end 31 applies force to the electrode block 5 at the third opening 441 so that the upper and lower sides of the electrode block 5 can be evenly stressed during the assembly process. Compared with the uneven stress caused by manual direct clamping, this greatly reduces the possibility of the electrode block 5 bending or even being damaged due to stress problems.
[0046] Specifically, in this embodiment, the mounting base 1 is provided with a first snap-fit groove 11, a second snap-fit groove 12 and a third snap-fit groove. The first base 41 is snapped into the first snap-fit groove 11, the second base 42 is snapped into the second snap-fit groove 12, the third snap-fit groove is connected to the second snap-fit groove 12, and the gripping ring 43 is installed in the third snap-fit groove. By fixing each component of the gripping base 4 through each mounting groove 44, the gripping base 4 is fixed relative to the entire biopsy forceps electrode crimping fixture, effectively preventing the gripping base 4 from shifting or shaking during the assembly of the electrode block 5, and improving the stability of the gripping base 4 on the mounting base 1.
[0047] In this embodiment, the length of the first base 41 is less than the length of the second base 42. The mounting base 1 is provided with a support groove 13. The end of the first buffer block 21 away from the first base 41 is installed at the position of the support groove 13. Specifically, the first buffer block 21 is strip-shaped. One end of the first buffer block 21 is inserted from the end of the hollow first base 41. The support groove 13 is connected to the first snap-fit groove 11. The end of the first buffer block 21 away from the first base 41 is installed in the support groove 13 and extends out of the support groove 13. The second buffer block 22 extends along the length direction of the second base 42 and extends out of the second base 42.
[0048] After assembling the electrode block 5, the engineers need to separate the first buffer block 21 and the second buffer block 22 from the gripper 4 and the biopsy forceps electrode crimping fixture. To facilitate the removal of the first buffer block 21 and the second buffer block 22 from the bottom of the electrode block 5 after assembly, the first buffer block 21 needs to be set to extend out of the first base 41 and the second buffer block needs to extend out of the second base 42. This makes it easier for the engineers to remove the first buffer block 21 and the second buffer block 22. At the same time, because the length of the first base 41 is insufficient to fully accommodate the first buffer block 21, the first buffer block 21 may fall off the first base 41. Therefore, to improve the stability of the first buffer block 21 on the gripper 4, a support groove 13 is provided to support the first buffer block 21 outside the first base 41, thereby improving the stability of the first buffer block 21 when it is supported.
[0049] The horizontal height of the first buffer block 21 is equal to that of the second buffer block 22. This design ensures that during the assembly of the electrode block 5, the supporting forces from the buffer blocks at both ends of the electrode block 5 are equal in magnitude and in the same direction. When the stamping end 31 applies force to the electrode block 5, the resultant force on the electrode block 5 in the vertical direction can be evenly distributed, effectively avoiding bending deformation caused by different force directions and uneven magnitudes.
[0050] As a further embodiment, the stamping unit 3 includes a driving assembly 32 and a stamping piece 33. The driving assembly 32 is used to drive the stamping piece 33 to move and position in the vertical direction. The stamping end 31 is the downward-facing end of the stamping piece 33. The first direction is the communication direction between the first opening 411 and the second opening 421 on the horizontal plane. The stamping piece 33 extends along the first direction. Specifically, the length of the stamping piece 33 in the first direction is greater than the length of the third opening 441 in the first direction, so that both ends of the stamping piece 33 along the first direction can enter the first opening 411 and the second opening 421, increasing the contact area of the stamping piece 33 with the electrode block 5, so that the stamping piece 33 can apply force to the electrode block 5 evenly, so that the electrode block 5 can be smoothly inserted into the mounting groove 44 when it is parallel to the horizontal plane.
[0051] As a further implementation method, refer to Figure 3 and Figure 4The plane of the stamping sheet 33 is parallel to the vertical plane of the first direction. The stamping sheet 33 is provided with a first guide part 34 on both sides of the horizontal direction perpendicular to the first direction. The two first guide parts 34 gradually approach each other from top to bottom. The first guide part 34 provides precise guidance for the stamping sheet 33 to enter the third opening 441. During the downward movement of the stamping sheet 33, the first guide part 34 can slide naturally along the edge of the third opening 441, effectively guiding the stamping sheet 33 to align with the center position of the third opening 441, avoiding collision or jamming between the stamping sheet 33 and the edge of the third opening 441, ensuring that the stamping sheet 33 can smoothly enter the third opening 441 to apply force to the electrode block 5, and ensuring the smooth progress of the entire assembly process.
[0052] The mounting groove 44 has a second guide part 14 on both sides along the first direction at the third opening 441. The side walls of the two second guide parts 14 gradually approach each other from top to bottom. When pressing, the electrode block 5 is placed between the two second guide parts 14, and then the stamping end 31 is started to stamp. Under the guidance of the two second guide parts 14, the electrode block 5 can stably enter the third opening 441 and be snapped into the mounting groove 44.
[0053] Two clamping parts 35 are respectively provided on both sides of the lower end of the stamping sheet 33 along the first direction. The side walls of the two clamping parts 35 that are close to each other gradually move away from each other from top to bottom. During assembly, the upper end of the electrode block 5 is tightly clamped between the clamping parts 35. During the stamping process, the clamping parts 35 form a stable clamping force on the electrode block 5, effectively preventing the electrode block 5 from separating from the stamping sheet 33, and ensuring that the stamping sheet 33 can stably transmit pressure to the electrode block 5.
[0054] Reference Figure 1 and Figure 3 The stamping sheet 33 can be detachably installed on the drive assembly 32. Through the detachable connection between the stamping sheet 33 and the drive assembly 32, engineers can install stamping sheets 33 of different lengths when assembling electrode blocks 5 of different specifications, so that the stamping sheet 33 can be adapted to electrode blocks 5 of different specifications for crimping.
[0055] Specifically, the drive assembly 32 can be a linear cylinder assembly or a motor threaded rod assembly. In this embodiment, no specific limitation is made. The output end of the drive assembly 32 moves in the up and down direction. A connecting groove is provided on the output end. The stamping plate 33 is installed in the connecting groove. A bolt is installed on the connecting groove. The bolt passes through the stamping plate 33 in the connecting groove and is threaded to the groove wall of the connecting groove.
[0056] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.
Claims
1. A biopsy forceps electrode crimping fixture, characterized in that, The grip (4) is applied to a holding base (4), which includes a first base (41) and a second base (42). Both the first base (41) and the second base (42) are hollow structures. The first base (41) is installed on one side of the second base (42). A first opening (411) is provided above the first base (41), and a second opening (421) is provided above the second base (42). The first base (41) and the second base (42) are connected by a mounting groove (44), and a third opening (441) is provided above the mounting groove (44). The biopsy forceps electrode crimping fixture includes: Mounting base (1), the gripping base (4) is mounted on the mounting base (1); The buffer unit (2) includes a first buffer block (21) and a second buffer block (22), wherein the first buffer block (21) is disposed at the first opening (411) and the second buffer block (22) is disposed at the second opening (421). The stamping unit (3) has a stamping end (31) which is movable and positioned relative to the mounting base (1) in the vertical direction and is movable into the third opening (441).
2. The biopsy forceps electrode crimping fixture according to claim 1, characterized in that, The mounting base (1) is provided with a first snap-fit groove (11) and a second snap-fit groove (12). The first base (41) is snapped into the first snap-fit groove (11), and the second base (42) is snapped into the second snap-fit groove (12).
3. The biopsy forceps electrode crimping fixture according to claim 2, characterized in that, The mounting base (1) has a support groove (13), and the first buffer block (21) extends out of the first base (41) and is installed at the position of the support groove (13).
4. The biopsy forceps electrode crimping fixture according to claim 2, characterized in that, The second buffer block (22) extends along the length direction of the second substrate (42) and extends outside the second substrate (42).
5. The biopsy forceps electrode crimping fixture according to claim 1, characterized in that, The horizontal height of the first buffer block (21) is equal to the horizontal height of the second buffer block (22).
6. The biopsy forceps electrode crimping fixture according to claim 1, characterized in that, The stamping unit (3) includes a drive assembly (32) and a stamping sheet (33). The drive assembly (32) can drive the stamping sheet (33) to move and position in the vertical direction. The stamping end (31) is the downward-facing end of the stamping sheet (33). The first direction is the communication direction between the first opening (411) and the second opening (421) on the horizontal plane. The stamping sheet (33) extends in the first direction.
7. The biopsy forceps electrode crimping fixture according to claim 6, characterized in that, The stamping sheet (33) is provided with a first guide portion (34) on both sides of the horizontal direction perpendicular to the first direction, and the two first guide portions (34) on the side that are far apart from each other gradually approach each other in the direction from top to bottom.
8. The biopsy forceps electrode crimping fixture according to claim 7, characterized in that, The mounting groove (44) has a second guide portion (14) on both sides of the third opening (441) along the first direction, and the side walls of the two second guide portions (14) gradually approach each other from top to bottom.
9. The biopsy forceps electrode crimping fixture according to claim 8, characterized in that, The stamping sheet (33) has two clamping parts (35) on both sides of the downward end along the first direction, and the side walls of the two clamping parts (35) that are close to each other gradually move away from each other in the downward direction.
10. The biopsy forceps electrode crimping fixture according to claim 6, characterized in that, The stamped sheet (33) can be detachably installed on the drive assembly (32).