A special forceps for tissue culture

By designing detachable connecting and limiting components for tissue culture tweezers, the problems of difficulty in replacing damaged tweezers and hand fatigue caused by prolonged clamping have been solved. This design enables convenient replacement and stable fixation of the clamps, improving service life and ease of operation.

CN224445650UActive Publication Date: 2026-07-03HENAN FREEZE BIOTECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN FREEZE BIOTECHNOLOGY CO LTD
Filing Date
2025-07-18
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing tissue culture tweezers are of a one-piece design, which makes it difficult to replace individual parts after damage. They have a short service life, and prolonged use can cause hand fatigue and reduced fixation stability.

Method used

A special forceps for tissue culture was designed, including a forceps holder, a clamp, and a connecting component. The connecting component facilitates clamp replacement, and the limiting component improves fixation stability and avoids soreness and swelling caused by prolonged hand clamping.

Benefits of technology

It enables easy replacement of the chuck, improves the service life and stability of the tweezers, reduces hand fatigue, and enhances ease of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of tweezers technology, specifically a special tweezers for tissue culture. It includes a tweezers frame, a clamp, and a connecting assembly. The clamp is disposed on the surface of the tweezers frame, which has a slot. A rotating post is rotatably connected to the inner wall of the slot. The connecting assembly includes a screw. The rotating post has anti-slip grooves on its surface, and the screw is fixedly connected to the rotating post. Multiple sets of anti-slip grooves are arranged in a circular array. A through groove is formed in the inner wall of the tweezers frame, and the screw is fitted into the inner wall of the through groove. This utility model, by incorporating a connecting assembly, facilitates the replacement of the clamp, avoiding the limitations of existing tissue culture tweezers which are often one-piece structures. In such cases, damage to the working part of the tweezers makes individual replacement of the affected structure inconvenient, hindering the improvement of the tweezers' lifespan and utilization rate. This effectively enhances the practicality of the equipment.
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Description

Technical Field

[0001] This utility model relates to the field of tweezers technology, and in particular to a special tweezers for tissue culture. Background Technology

[0002] Tissue culture forceps are specialized tools used in plant tissue culture experiments. They facilitate the handling of plant samples, reduce operational steps, and lower the risk of contamination. Primarily used in plant tissue culture experiments, these forceps help researchers insert samples into the culture medium to complete the experiment. Their design allows for easier operation and improves experimental efficiency.

[0003] Existing technologies, such as CN222548286U, disclose a tissue culture tweezers, including a tweezers frame. An opening is provided on one inner wall of the tweezers frame, and a scissor blade is detachably inserted into the inner wall of the opening. A slot is provided at the end of the tweezers frame near the scissor blade, and a tweezers head is inserted into the inner wall of the slot. A tweezers head is also provided at the end of the tweezers frame away from the scissor blade. The tweezers head and tweezers head are detachably fixed to the inner wall of the tweezers frame by bolts. This relates to the field of tweezers. By setting a tweezers frame, tweezers head one and tweezers head two can be detachably fixed at both ends of the tweezers frame, thus facilitating the replacement of tweezers head one and tweezers head two during use, improving the practicality of the equipment. It also facilitates cutting by pressing the scissor blade when using the tweezers to grasp tissue culture structures, thus enhancing the multi-functionality of the equipment.

[0004] To address the issue of replacing the tweezers grip in existing equipment, it's important to note that the current tissue culture tweezers are a one-piece design. When the working part of the tweezers is damaged, it's inconvenient to replace the individual component, hindering the extension of the tweezers' lifespan and reducing their utilization rate. Furthermore, prolonged use of the tweezers requires the user to use their index finger and thumb to press the tweezers inwards to hold and fix the object, which can lead to hand fatigue and reduced stability of the tweezers. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing tissue culture tweezers, which are all one-piece structures. When the working part of the tweezers is damaged, it is inconvenient to replace the individual parts, making it difficult to extend the service life and improve the utilization rate. Furthermore, when using tweezers to grasp objects for extended periods, the user needs to use their index finger and thumb to squeeze the tweezers inwards to hold and fix the object, which can lead to hand fatigue and reduced stability of the tweezers. Therefore, this invention proposes a special tweezers for tissue culture.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a special tweezers for tissue culture, comprising a tweezers frame, a clamp, and a connecting assembly. The clamp is disposed on the surface of the tweezers frame, and the tweezers frame is provided with a slot. The slot is formed on the surface of the tweezers frame, and a rotating post is rotatably connected to the inner wall of the slot. A connecting assembly is disposed on the surface of the rotating post, and the connecting assembly includes a screw. An anti-slip groove is formed on the surface of the rotating post, and the screw is fixedly connected to the surface of the rotating post.

[0007] Furthermore, the number of anti-slip grooves is multiple and arranged in a circular array, the inner wall of the tweezers holder is provided with a through groove, and the screw is sleeved and connected to the inner wall of the through groove.

[0008] Furthermore, the surface of the tweezers holder is provided with a slot, and a fixing rod is fixedly connected to the inner wall of the slot. The number of fixing rods is two sets and they are arranged symmetrically.

[0009] Furthermore, a locking block is fixedly connected to the surface of the chuck, the locking block engages with the inner wall of the slot, and a threaded hole is formed on the surface of the locking block, and the screw drives the threaded drive with the inner wall of the threaded hole.

[0010] Furthermore, the surface of the card block is provided with fixing holes, and there are two sets of fixing holes arranged symmetrically. The fixing rod is inserted and connected to the inner wall of the fixing hole.

[0011] Furthermore, the surface of the tweezers holder is provided with a limiting component, the limiting component includes a fixing block, the fixing block is fixedly connected to the surface of the tweezers holder, the number of fixing blocks is two sets and they are symmetrically arranged, and the inner wall of the fixing block is rotatably connected to a rotating rod.

[0012] Furthermore, a support rod is rotatably connected to the inner wall of the rotating rod, and a rotating shaft is rotatably connected to the end of the support rod away from the rotating rod.

[0013] Furthermore, a stabilizing rod is fixedly connected to the surface of the support rod, and a suction cup is fixedly connected to the surface of the stabilizing rod, with the two sets of suction cups adsorbing and connecting.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] 1. In this utility model, by setting a connecting component, the use of the tweezers holder is more convenient when replacing the chuck. To do this, align the fixing hole with the fixing rod, then rub the anti-slip groove on the surface of the rotating column by hand to increase the friction, which drives the screw to rotate. The screw then engages with the threaded groove on the surface of the chuck, causing the screw to move the chuck stably along the surface of the fixing rod. This allows the chuck to gradually engage with the inner wall of the groove, thus stably connecting the chuck to the surface of the tweezers holder. By setting a connecting component, the chuck can be easily replaced, avoiding the limitations of existing tissue culture tweezers which are one-piece structures. In such cases, it is inconvenient to replace individual parts of the tweezers after damage, hindering the lifespan of the tweezers and reducing their utilization rate. Therefore, this effectively improves the practicality of the equipment.

[0016] 2. In this utility model, by setting a limiting component, the tweezers holder is more convenient to use when it is fixed. When the operator presses the two sides of the tweezers holder with their index finger and thumb, the support rod rotates along the axis of the rotating rod. Then, the angle between the two sets of support rods gradually decreases, causing the suction cups connected to the surface of the support rods to gradually approach and adhere. Then, when the clamp holds the object, the suction cup adheres, stabilizing the distance between the two sets of clamps. The operator does not need to constantly exert force to clamp the object. By setting a limiting component, the tweezers holder is easily fixed, avoiding the need for the operator to squeeze the tweezers inward with their index finger and thumb to form a clamping and fixing of the object when using the tweezers for a long time. However, this can cause hand soreness and fatigue under prolonged clamping, reducing the stability of the tweezers. Therefore, this effectively improves the convenience of the device. Attached Figure Description

[0017] Figure 1 This utility model provides a three-dimensional structural diagram of a special forceps for tissue culture;

[0018] Figure 2 This utility model provides a schematic diagram of the main structure of the connecting component in a special forceps for tissue culture;

[0019] Figure 3 This utility model proposes a special forceps for tissue culture. Figure 2 Schematic diagram at point A;

[0020] Figure 4 This utility model provides a schematic diagram of the main structure of the clamp in a special forceps for tissue culture;

[0021] Figure 5 This utility model provides a side view of the main structure of a special forceps for tissue culture.

[0022] Figure 6This invention presents a schematic diagram of the main structure of a limiting component in a special tweezers for tissue culture.

[0023] Legend:

[0024] 1. Tweezers holder; 2. Clamp; 3. Connecting assembly; 31. Slot; 32. Rotating column; 33. Anti-slip groove; 34. Through groove; 35. Screw; 36. Slot; 37. Fixing rod; 38. Locking block; 39. Threaded hole; 310. Fixing hole; 4. Limiting assembly; 41. Fixing block; 42. Rotating rod; 43. Support rod; 44. Rotating shaft; 45. Stabilizing rod; 46. Suction cup. Detailed Implementation

[0025] Please see Figures 1-6 This utility model provides a technical solution: a special tweezer for tissue culture, including a tweezer frame 1, a clamp 2 and a connecting component 3. The clamp 2 is disposed on the surface of the tweezer frame 1. The tweezer frame 1 is provided with a slot 31, which is opened on the surface of the tweezer frame 1. A rotating post 32 is rotatably connected to the inner wall of the slot 31, and the connecting component 3 is disposed on the surface of the rotating post 32.

[0026] The following section will explain the specific settings and functions of connecting component 3 and limiting component 4.

[0027] In this embodiment: the connecting component 3 includes a screw 35, and the surface of the rotating post 32 is provided with an anti-slip groove 33. The screw 35 is fixedly connected to the surface of the rotating post 32.

[0028] Specifically, the anti-slip grooves 33 are in multiple sets and arranged in a circular array, and the inner wall of the tweezers holder 1 is provided with a through groove 34, and the screw 35 is sleeved and connected to the inner wall of the through groove 34.

[0029] Specifically, the surface of the tweezers holder 1 is provided with a slot 36, and a fixing rod 37 is fixedly connected to the inner wall of the slot 36. There are two sets of fixing rods 37, which are arranged symmetrically.

[0030] Specifically, a locking block 38 is fixedly connected to the surface of the chuck 2. The locking block 38 engages with the inner wall of the slot 36. A threaded hole 39 is opened on the surface of the locking block 38, and the screw 35 is threaded through the inner wall of the threaded hole 39.

[0031] Specifically, the surface of the card block 38 is provided with fixing holes 310. There are two sets of fixing holes 310 arranged symmetrically. The fixing rod 37 is inserted and connected to the inner wall of the fixing hole 310.

[0032] The effects achieved by the above components are as follows: by setting the anti-slip groove 33, the friction of the rotating column 32 surface is increased, preventing the rotating column 32 surface from being too smooth and making it difficult to rotate the rotating column 32; by setting the screw 35, it is easy to connect the chuck 2 and the tweezers holder 1 through threaded transmission; by setting the connection between the fixing rod 37 and the fixing hole 310, it is easy for the chuck 2 to slide stably along the surface of the fixing rod 37 when the screw 35 drives the chuck 2 to be installed or removed; by setting the connection between the locking block 38 and the locking groove 36, it is easy to connect the chuck 2 and the tweezers holder 1 stably, avoiding gaps and misalignment of the connection position.

[0033] Specifically, the surface of the tweezers holder 1 is provided with a limiting component 4, which includes a fixing block 41. The fixing block 41 is fixedly connected to the surface of the tweezers holder 1. There are two sets of fixing blocks 41 arranged symmetrically. The inner wall of the fixing block 41 is rotatably connected to a rotating rod 42.

[0034] Specifically, a support rod 43 is rotatably connected to the inner wall of the rotating rod 42, and a rotating shaft 44 is rotatably connected to the end of the support rod 43 away from the rotating rod 42.

[0035] Specifically, a stabilizing rod 45 is fixedly connected to the surface of the support rod 43, and a suction cup 46 is fixedly connected to the surface of the stabilizing rod 45. The two sets of suction cups 46 are connected by adsorption.

[0036] The effects achieved by the above components are as follows: by setting the rotating rod 42, the support rod 43 can be stably rotated along the axis of the rotating rod 42; by setting the support rod 43, the two sets of suction cups 46 can be stably moved; by setting the suction cups 46, the clenching head 2 can hold the object stably after the tweezers frame 1 is clamped on both sides, and at the same time the suction cups 46 on both sides are attracted, and then the two sets of clenching head 2 are fixed, so that the object is stably clamped. The setting of the suction cups 46 can avoid hand soreness caused by clamping the tweezers frame 1 for a long time.

[0037] Working principle: By setting up the connecting component 3, the use of the tweezers holder 1 is more convenient when replacing the chuck 2. To do this, align the fixing hole 310 with the fixing rod 37, and then rub the anti-slip groove 33 on the surface of the rotating column 32 by hand to increase the friction of the hand, which will drive the screw 35 to rotate. Then the screw 35 and the threaded groove on the surface of the chuck 2 will engage in threaded transmission, and the screw 35 will drive the chuck 2 to move stably along the surface of the fixing rod 37, so that the chuck 2 and the locking block 38 will gradually engage with the inner wall of the locking groove 36. Then the chuck 2 will be stably connected to the surface of the tweezers holder 1. By setting up the connecting component 3, it is easy to replace the chuck 2, avoiding the existing tissue culture special tweezers knife with a one-piece structure. After the working part of the tweezers knife is damaged, it is inconvenient to replace the local structure separately, which is not conducive to improving the service life of the tweezers knife and is not conducive to improving the utilization rate of the tweezers knife. This effectively improves the practicality of the equipment.

[0038] Furthermore, by setting the limiting component 4, the use of the tweezers frame 1 is made more convenient when it is fixed. When the operator presses the two sides of the tweezers frame 1 with their index finger and thumb, the support rod 43 rotates along the axis of the rotating rod 42. Then, the angle between the two sets of support rods 43 gradually decreases, so that the suction cup 46 connected to the surface of the support rod 43 gradually moves closer to adsorb. Then, when the clamp 2 clamps the object, the suction cup 46 adsorbs, so that the distance between the two sets of clamps 2 is stabilized. Then, the operator's hand does not need to exert force to clamp the object. By setting the limiting component 4, it is easy to fix the tweezers frame 1, avoiding the need for the user to squeeze the tweezers inward with their index finger and thumb to form a clamping and fixing of the object when using the tweezers for a long time. However, this will cause hand soreness and fatigue when clamping for a long time, which will reduce the stability of the tweezers. Therefore, the convenience of the equipment is effectively improved.

Claims

1. A special tweezers for tissue culture, comprising a tweezers holder (1), a clamp head (2) and a connecting assembly (3), characterized in that: The chuck (2) is disposed on the surface of the tweezers holder (1). The tweezers holder (1) is provided with a slot (31). The slot (31) is opened on the surface of the tweezers holder (1). The inner wall of the slot (31) is rotatably connected to a rotating post (32). The rotating post (32) is provided with a connecting component (3). The connecting component (3) includes a screw (35). The rotating post (32) is provided with an anti-slip groove (33). The screw (35) is fixedly connected to the surface of the rotating post (32).

2. The special tweezers for tissue culture according to claim 1, characterized in that: The number of anti-slip grooves (33) is multiple and arranged in a ring array. The inner wall of the tweezers holder (1) is provided with a through groove (34). The screw (35) is sleeved and connected to the inner wall of the through groove (34).

3. The special tweezers for tissue culture according to claim 2, characterized in that: The surface of the tweezers holder (1) is provided with a slot (36), and a fixing rod (37) is fixedly connected to the inner wall of the slot (36). There are two sets of fixing rods (37) arranged symmetrically.

4. The special tweezers for tissue culture according to claim 3, characterized in that: The surface of the chuck (2) is fixedly connected to a locking block (38), the locking block (38) engages with the inner wall of the slot (36), the surface of the locking block (38) is provided with a threaded hole (39), and the screw (35) is threaded through the inner wall of the threaded hole (39).

5. The special tweezers for tissue culture according to claim 4, characterized in that: The surface of the card block (38) is provided with fixing holes (310), and there are two sets of fixing holes (310) arranged symmetrically. The fixing rod (37) is inserted and connected to the inner wall of the fixing hole (310).

6. The special forceps for tissue culture according to claim 1, characterized in that: The surface of the tweezers holder (1) is provided with a limiting component (4), the limiting component (4) includes a fixing block (41), the fixing block (41) is fixedly connected to the surface of the tweezers holder (1), the number of fixing blocks (41) is two sets and they are symmetrically arranged, and the inner wall of the fixing block (41) is rotatably connected with a rotating rod (42).

7. The special tweezers for tissue culture according to claim 6, characterized in that: The inner wall of the rotating rod (42) is rotatably connected to a support rod (43), and the end of the support rod (43) away from the rotating rod (42) is rotatably connected to a rotating shaft (44).

8. The special tweezers for tissue culture according to claim 7, characterized in that: A stabilizing rod (45) is fixedly connected to the surface of the support rod (43), and a suction cup (46) is fixedly connected to the surface of the stabilizing rod (45). The two sets of suction cups (46) are connected by adsorption.