Optimized sampling device for liver round-hole-shaped defect modeling
By designing a liver circular hole defect modeling device with a non-slip handle and a drive component to drive the blade cutting, the problems of complex operation and high cost of existing devices are solved, realizing low-cost and efficient sampling of liver circular hole defects, and improving the reliability and safety of experiments.
Patent Information
- Application Number
- CN202422790330.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-10-21
- Filing Date
- 2024-11-15
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-11-15
AI Technical Summary
Existing models for creating round holes in the liver are complex to operate, highly invasive, and costly, making it difficult to achieve accurate and rapid sampling, which affects the repeatability and accuracy of experimental results.
An optimized sampling device was designed, comprising an anti-slip handle, a connecting post, a moving post, a pushing post, and a limiting post. The device uses a rotating protective post to drive a fixed blade to cut, and a driving component to extend the moving blade for sampling. It supports cutting blades of different diameters.
This method enables the creation of a simple and low-cost model for foramen rotundum in the liver, reducing the technical requirements for operators and improving sampling accuracy and safety.
Smart Images
Figure CN223541940U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liver foramen sampling technology, specifically an optimized sampling device for modeling liver foramen defects. Background Technology
[0002] In the field of biomedical research, coagulation materials have always been a research hotspot. When it is necessary to assess the hemostatic performance of materials by creating a circular foramen rupture in liver tissue, specialized instruments and equipment are required to model the defect. This model is crucial for the development and evaluation of novel hemostatic materials because it can simulate actual wound conditions and provide key biological data for preclinical studies. However, existing modeling methods often suffer from complex procedures, significant trauma, and a tendency to damage the soft tissue beneath the liver, affecting the reproducibility and accuracy of experimental results. Therefore, developing a device capable of accurately and rapidly creating a circular foramen rupture in the liver is of significant importance for improving research efficiency and the reliability of experimental results.
[0003] Currently available manual or electric biopsy punches and laser cutting equipment can meet the needs of modeling to a certain extent, but there is still considerable room for improvement in terms of operational safety. For example, manual punches may damage the soft tissue beneath the liver due to excessive force applied by the operator, and most manual punches only have blades of one size; while laser cutting equipment, although precise, is expensive and requires highly skilled operators. Therefore, we need to propose an optimized sampling device for modeling liver foramen rotundum defects. Utility Model Content
[0004] The purpose of this invention is to provide an optimized sampling device for modeling liver foramen rotundum defects. By grasping the lower surface of the protective column with one hand and rotating the non-slip handle with the other hand to drive the connecting column to rotate, the connecting column, under the action of the driving component, drives the moving blade above the moving column to extend, thereby passing over the fixed blade and sampling through the moving blade, thus solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an optimized sampling device for modeling liver foramen rotundum defects, comprising an anti-slip handle, a connecting column, a moving column, a pushing column, and a limiting column. The connecting column is fixedly installed on the upper surface of the anti-slip handle, the pushing column is disposed at the top of the connecting column, the limiting column is fixedly connected between the moving column and the pushing column, and a moving blade is fixedly connected to the top of the moving column.
[0006] The outer arc surface of the movable column is fitted with a connecting column sleeve, and a top column sleeve is fixedly installed on the upper surface of the connecting column sleeve. A fixed blade is installed at the top of the top column sleeve.
[0007] The outer arc surface of the connecting column is provided with a drive component for extending the moving blade.
[0008] Preferably, the drive assembly includes a protective post and a guide post. The protective post is rotatably sleeved on the outer arc surface of the connecting post, and the guide post is fixedly installed on the outer arc surface of the connecting post. The outer arc surface of the protective post is provided with a guide groove corresponding to the guide post, and the side of the guide groove away from the anti-slip grip is provided with a snap-fit groove corresponding to the guide post.
[0009] Preferably, the protective column is threaded to the lower surface of the connecting column sleeve, and both the connecting column and the pushing column are rotatably disposed inside the protective column, and the pushing column does not contact the inner wall of the protective column.
[0010] Preferably, the limiting post is rotatably disposed inside the protective post and the connecting post sleeve, and the limiting post is in contact with the inner wall of the protective post and the connecting post sleeve.
[0011] Preferably, a compression spring is fixedly provided on the upper surface of the limiting post, and the compression spring is slidably sleeved on the outer arc surface of the moving post. The connecting post sleeve has a moving groove corresponding to the moving post and the compression spring inside.
[0012] Preferably, the top column sleeve has a through groove corresponding to the movable column inside, and an iron sheet cover is snapped onto the top of the top column sleeve.
[0013] Preferably, mounting plates are fixedly connected to both sides of the iron sheet cover, and spring plungers are provided on both sides of the two sets of mounting plates. Two sets of connecting plates are fixedly provided on the outer arc surface of the top column sleeve, and positioning grooves corresponding to the spring plungers are opened on the inner side of the two sets of connecting plates.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This invention uses a rotating protective column to drive the fixed blade at the top of the top column sleeve to rotate and cut. By holding the lower surface of the protective column with one hand and rotating the non-slip handle with the other hand to drive the connecting column to rotate, the connecting column, under the action of the drive component, drives the moving blade above the moving column to extend, thus passing over the fixed blade and taking samples through the moving blade. Furthermore, it uses blades of different diameters to cut and sample. Moreover, the device has a simple structure, low cost, and reduced requirements for the operator.
[0016] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the extended movable blade of this utility model;
[0019] Figure 3 This utility model Figure 1 Sectional view;
[0020] Figure 4 This utility model Figure 1 Exploded view;
[0021] Figure 5 This utility model Figure 3 Enlarged view of the structure at point A in the middle.
[0022] In the diagram: 1. Anti-slip grip; 2. Connecting post; 3. Protective post; 4. Guide post; 5. Guide groove; 6. Connecting post sleeve; 7. Top post sleeve; 8. Iron sheet cover; 9. Moving post; 10. Snap-fit groove; 11. Pushing post; 12. Limiting post; 13. Compression spring; 14. Moving blade; 15. Fixed blade; 16. Connecting plate; 17. Mounting plate; 18. Spring plunger; 19. Positioning groove; 20. Moving groove. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] like Figures 1-5 As shown, this utility model provides an optimized sampling device for modeling liver foramen rotundum defects, such as... Figure 1-5 As shown, it includes an anti-slip handle 1, a connecting post 2, a moving post 9, a pushing post 11, and a limiting post 12. The connecting post 2 is fixedly installed on the upper surface of the anti-slip handle 1. The pushing post 11 is located at the top of the connecting post 2. The limiting post 12 is fixedly connected between the moving post 9 and the pushing post 11. A moving blade 14 is fixedly connected to the top of the moving post 9.
[0025] The outer arc surface of the movable column 9 is fitted with a connecting column sleeve 6, and a top column sleeve 7 is fixedly installed on the upper surface of the connecting column sleeve 6. A fixing blade 15 is installed at the top of the top column sleeve 7.
[0026] The outer arc surface of the connecting column 2 is provided with a drive component for extending the movable blade 14; rotating the protective column 3 drives the fixed blade 15 at the top of the top column sleeve 7 to rotate and cut. By holding the lower surface of the protective column 3 with one hand and rotating the anti-slip handle 1 with the other hand, the connecting column 2 is rotated. Under the action of the drive component, the connecting column 2 drives the movable blade 14 above the movable column 9 to extend, thereby passing over the fixed blade 15 and sampling through the movable blade 14. Then, cutting and sampling are carried out through blades of different diameters. Moreover, the device has a simple structure, low cost, and reduced requirements for operators.
[0027] The drive assembly includes a protective post 3 and a guide post 4. The protective post 3 is rotatably sleeved on the outer arc surface of the connecting post 2, and the guide post 4 is fixedly installed on the outer arc surface of the connecting post 2. The outer arc surface of the protective post 3 is provided with a guide groove 5 corresponding to the guide post 4. The guide groove 5 is provided with a snap-fit groove 10 corresponding to the guide post 4 on the side away from the anti-slip handle 1. When the connecting post 2 is rotated towards the connecting post sleeve 6 by the anti-slip handle 1, the connecting post 2 moves along the guide groove 5 under the action of the guide post 4. Thus, the moving blade 14 is rotated out from the inside of the connecting post sleeve 6 by the moving post 9. At the same time, the guide post 4 is snapped into the inside of the guide groove 5 to facilitate the fixation of the rotating moving blade 14.
[0028] The protective column 3 is threaded to the lower surface of the connecting column sleeve 6. The connecting column 2 and the pushing column 11 are both rotatably disposed inside the protective column 3, and the pushing column 11 does not contact the inner wall of the protective column 3. The protective column 3 is threaded to the connecting column sleeve 6, which makes it convenient to separate the protective column 3 and the connecting column sleeve 6 to maintain and replace the internal structure.
[0029] The limiting post 12 is rotatably disposed inside the protective post 3 and the connecting post sleeve 6, and the limiting post 12 contacts the inner wall of the protective post 3 and the connecting post sleeve 6. The limiting post 12 can contact both the inner wall of the protective post 3 and the connecting post sleeve 6, thereby ensuring that the limiting post 12 can move back and forth inside the protective post 3 and the connecting post sleeve 6.
[0030] It is worth noting that a compression spring 13 is fixedly installed on the upper surface of the limiting post 12, and the compression spring 13 is slidably sleeved on the outer arc surface of the moving post 9. The connecting post sleeve 6 has a moving groove 20 corresponding to the moving post 9 and the compression spring 13. The diameter of the limiting post 12 is larger than the diameter of the pushing post 11 of the moving post 9. When the moving post 9, the pushing post 11 and the limiting post 12 approach the top post sleeve 7 and drive the moving blade 14 to extend, the compression spring 13 is compressed. When it is necessary to extend the moving blade 14, the anti-slip handle 1 is released, and the moving blade 14 will move back into the connecting post sleeve 6 through the moving post 9 under the action of the compression spring 13. At the same time, when the fixed blade 15 is used, the compression spring 13 is in normal state and will not continue to drive the moving post 9 away from the top post sleeve 7.
[0031] Specifically, the top sleeve 7 has a through groove corresponding to the moving column 9 inside, and an iron plate cover 8 is snapped onto the top of the top sleeve 7. The through groove has the same diameter as the moving column 9, which ensures that the moving column 9 can extend through the top sleeve 7, while limiting the compression spring 13 through the through groove and the limiting post 12 to prevent the compression spring 13 from extending with the moving column 9.
[0032] In addition, mounting plates 17 are fixedly connected to both sides of the iron sheet cover 8. Spring plungers 18 are provided on both sides of the two sets of mounting plates 17. Two sets of connecting plates 16 are fixedly provided on the outer arc surface of the top sleeve 7. The inner side of the two sets of connecting plates 16 is provided with positioning grooves 19 corresponding to the spring plungers 18. When the device is not in use, the spring plungers 18 at both ends of the iron sheet cover 8 are inserted into the positioning grooves 19 on the outer arc surface of the connecting sleeve 6, thereby covering the outer arc surface of the fixed blade 15 and preventing the fixed blade 15 from accidentally injuring the staff.
[0033] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An optimized sampling device for modeling liver foramen rotundum defects, characterized in that, It includes: an anti-slip grip (1), a connecting post (2), a moving post (9), a pushing post (11), and a limiting post (12). The connecting post (2) is fixedly installed on the upper surface of the anti-slip grip (1). The pushing post (11) is located at the top of the connecting post (2). The limiting post (12) is fixedly connected between the moving post (9) and the pushing post (11). A moving blade (14) is fixedly connected to the top of the moving post (9). The outer arc surface of the movable column (9) is fitted with a connecting column sleeve (6), and a top column sleeve (7) is fixedly provided on the upper surface of the connecting column sleeve (6). A fixed blade (15) is provided at the top of the top column sleeve (7). The outer arc surface of the connecting column (2) is provided with a drive component for driving the moving blade (14) to extend.
2. The optimized sampling device for modeling a foramen rotundum defect of the liver according to claim 1, characterized in that: The drive assembly includes a protective post (3) and a guide post (4). The protective post (3) is rotatably sleeved on the outer arc surface of the connecting post (2). The guide post (4) is fixedly installed on the outer arc surface of the connecting post (2). The outer arc surface of the protective post (3) is provided with a guide groove (5) corresponding to the guide post (4). The guide groove (5) is provided with a snap-fit groove (10) corresponding to the guide post (4) on the side away from the anti-slip grip (1).
3. An optimized sampling device for modeling a foramen rotundum defect of the liver according to claim 2, characterized in that: The protective column (3) is threaded to the lower surface of the connecting column sleeve (6). The connecting column (2) and the pushing column (11) are both rotatably disposed inside the protective column (3), and the pushing column (11) does not contact the inner wall of the protective column (3).
4. An optimized sampling device for modeling liver foramen rotundum defects according to claim 3, characterized in that: The limiting post (12) is rotatably disposed inside the protective post (3) and the connecting post sleeve (6), and the limiting post (12) is in contact with the inner wall of the protective post (3) and the connecting post sleeve (6).
5. An optimized sampling device for modeling a foramen rotundum defect of the liver according to claim 4, characterized in that: A compression spring (13) is fixedly provided on the upper surface of the limiting post (12), and the compression spring (13) is slidably sleeved on the outer arc surface of the moving post (9). The connecting post sleeve (6) has a moving groove (20) corresponding to the moving post (9) and the compression spring (13) inside.
6. An optimized sampling device for modeling a foramen rotundum defect of the liver according to claim 1, characterized in that: The top column sleeve (7) has a through groove inside that corresponds to the moving column (9), and an iron sheet cover (8) is snapped onto the top of the top column sleeve (7).
7. An optimized sampling device for modeling a foramen rotundum defect of the liver according to claim 6, characterized in that: The iron sheet cover (8) is fixedly connected to both sides of the mounting plate (17), and spring plungers (18) are provided on both sides of the two sets of mounting plates (17). The outer arc surface of the top column sleeve (7) is fixedly provided with two sets of connecting plates (16), and the inner side of the two sets of connecting plates (16) is provided with positioning grooves (19) corresponding to the spring plungers (18).