Electric handheld homogenate scissors for shearing experimental animal tissues

Abstract

The invention discloses a pair of electric handheld homogenate scissors for shearing experimental animal tissues, which is characterized by comprising a shell, a scissor head, a scissor handle, a shearing moving assembly and a driving assembly, the shearing end of the shell is provided with a shear opening used for allowing the shear head to penetrate through. The scissor heads penetrate through the scissor openings; the scissor heads are detachably connected with the scissor handles, and the two scissor handles are arranged in a crossed mode. The shearing moving assembly comprises a moving rod, a moving block, a spring and a guide rod; the guide rod is arranged in the shell, and the movable block is arranged outside the guide rod in a sleeving mode and is in sliding connection with the guide rod. A moving rod is hinged to one end of the moving block, and the other end of the moving rod is connected with the scissor handle; the other end of the moving block is connected with the spring; the other end of the spring is connected with the shell; the driving assembly comprises a motor and a half-tooth gear; teeth are arranged on the side face of the movable block. The scissors are convenient to operate, the scissor heads are convenient to replace, and cross contamination is avoided.

Description

Technical Field

[0001] This invention relates to the field of primary cell culture technology, and more specifically to an electric handheld homogenizer for mincing laboratory animal tissues. Background Technology

[0002] In biomedical research, primary cells are frequently used. This requires surgical scissors or microscissors to uniformly cut tissues and organs (such as the heart, lungs, and placenta) of experimental animals (e.g., mice and rats) into small pieces (less than 1 mm square) to facilitate subsequent digestion and the formation of single-cell suspensions. However, manually cutting tissue is very laborious and has the following significant drawbacks: 1. Low efficiency: It takes a long time to process a single sample. When a large number of samples need to be processed, it severely restricts the progress of the experiment. Furthermore, the long-term manual cutting of tough tissues can easily lead to hand fatigue or even strain on the operator.

[0003] 2. Risk of cross-contamination: Scissors need to be repeatedly cleaned and wiped between different samples, which increases the risk of cross-contamination.

[0004] Therefore, developing an electric handheld homogenizer for shredding laboratory animal tissues that is easy to operate, allows for convenient replacement of the scissor head, and avoids cross-contamination is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides an electric handheld homogenizer for shredding laboratory animal tissues that is easy to operate, allows for convenient replacement of the scissor head, and avoids cross-contamination.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An electric handheld homogenizer for shredding laboratory animal tissues includes: The housing has a shearing end with a scissor opening for the shear head to pass through; The scissor head is inserted into the scissor blade; The scissor handle is detachably connected to the scissor head, and the two scissor handles are arranged in a cross pattern. A shearing moving assembly includes: a moving rod, a moving block, a spring, and a guide rod; the guide rod is disposed inside the housing, the moving block is sleeved on the outside of the guide rod and slidably connected to the guide rod; one end of the moving block is hinged to the moving rod, and the other end of the moving rod is connected to the shear handle; the other end of the moving block is connected to the spring, and the other end of the spring is connected to the housing; A drive assembly, comprising: a motor and a half-gear; teeth are provided on the side of the moving block, the teeth of the moving block meshing with the teeth of the half-gear, and the output end of the motor being connected to the half-gear.

[0007] The beneficial effects of adopting the above technical solution are that the electric drive shearing action replaces the traditional manual shearing, significantly improving shearing efficiency and reducing the labor intensity of the operator; the shear head and shear handle are detachably connected, making it easy to replace and effectively avoiding cross-contamination between samples; the reciprocating shearing action of the shear head is realized by using a spring reset mechanism and a half-tooth gear meshing transmission, which is simple in structure and reliable in operation.

[0008] Preferably, a mounting post is provided at the end of the scissor handle connected to the scissor head, and a locking block is provided on the surface of the mounting post; a mounting groove is provided at the position corresponding to the scissor head and the mounting post, and an L-shaped locking groove is provided in the mounting groove, in which the locking block is locked. This enables quick assembly and disassembly of the scissor head, improving replacement efficiency; the L-shaped locking groove structure enhances connection stability, prevents the scissor head from falling off during cutting, and improves safety during use.

[0009] Preferably, a lever extends from the intersection of the scissor handles outward from the housing. The housing surface has a lever groove and a fixing groove. The lever passes through the lever groove and is engaged within the fixing groove. The lever design facilitates manual adjustment of the scissor handle position and assists in scissor head replacement. The fixing groove structure locks the scissor handle in the non-replacement state, preventing accidental operation or shaking and improving operational stability.

[0010] Preferably, a first slide rail is provided inside the housing corresponding to the intersection of the scissor handles, and a first slider extends from the intersection of the scissor handles, the first slider being slidably connected to the first slide rail.

[0011] Preferably, baffles are provided at both ends of the guide rod, and the spring is sleeved on the outside of the guide rod and connected to the baffles. The baffle structure effectively limits the movement range of the moving block and prevents overshoot or spring dislodgement.

[0012] Preferably, a buffer pad is provided at the end of the guide rod away from the spring, and the buffer pad is connected to the baffle.

[0013] Preferably, the housing is provided with a second slide rail corresponding to the movable block, and the surface of the movable block is provided with a second slider, which is slidably connected to the second slide rail.

[0014] Preferably, the moving block has two half-tooth gears connected to its toothed side, and the two half-tooth gears are connected to each other. The dual-gear structure improves transmission smoothness and enhances driving torque output.

[0015] Preferably, a switch button is provided on the surface of the housing, and the switch button is connected to the motor.

[0016] Preferably, the housing is connected to a handle, and the handle contains a battery, which is connected to the motor and the switch button.

[0017] As can be seen from the above technical solution, compared with the prior art, the present invention discloses an electric handheld homogenizer for shredding laboratory animal tissues, the advantages of which are: (1) Electric drive replaces manual operation, quickly completes tissue cutting, and is suitable for large batch sample processing; automated cutting reduces hand fatigue and avoids hand strain caused by long-term operation.

[0018] (2) The scissor tip can be quickly replaced, eliminating the need to reuse the same scissor tip and reducing the risk of contamination between samples; the handheld design integrates a battery and control system, making it suitable for various laboratory operating environments. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 A schematic diagram of the structure of the scissors provided by the present invention; Figure 2 This is a schematic diagram of the internal structure of the scissor housing provided by the present invention; Figure 3 This is a schematic diagram of the structure of the driving component provided by the present invention; Figure 4 This is a structural schematic diagram of the scissor head disassembly part provided by the present invention.

[0021] In the figure, 1-Shell; 11-Scissors blade; 12-Groove; 13-Fixing groove; 14-First slide rail; 15-Second slide rail; 16-Switch button; 17-Handle; 2-Scissors head; 21-Mounting slot; 22-Card slot; 3-Scissors handle; 31-Mounting column; 32-Card block; 4-Cut and move component; 41-Moving rod; 42-Moving block; 43-Spring; 44-Guide rod; 45-Baffle; 46-Buffer pad; 5-Driver components; 51-Motor; 52-Half-tooth gear; 6-Lever. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] This invention discloses an electric handheld homogenizer for mincing laboratory animal tissue, comprising: The housing 1 has a shearing end with a shearing opening 11 for the shearing head 2 to pass through; Scissor head 2, scissor head 2 is inserted into scissor opening 11; The scissor handle 3 and the scissor head 2 are detachably connected to the scissor handle 3, and the two scissor handles 3 are arranged in a cross pattern; The shearing moving assembly 4 includes: a moving rod 41, a moving block 42, a spring 43, and a guide rod 44; the guide rod 44 is disposed inside the housing 1, the moving block 42 is sleeved on the outside of the guide rod 44 and slidably connected to the guide rod 44; one end of the moving block 42 is hinged to the moving rod 41, the other end of the moving rod 41 is connected to the shear handle 3; the other end of the moving block 42 is connected to the spring 43, and the other end of the spring 43 is connected to the housing 1. The drive assembly 5 includes a motor 51 and a half-gear 52; the side of the moving block 42 is provided with teeth, the teeth of the moving block 42 mesh with the teeth of the half-gear 52, and the output end of the motor 51 is connected to the half-gear 52.

[0024] In one embodiment, a mounting post 31 is provided at the end where the scissor handle 3 connects to the scissor head 2, and a locking block 32 is provided on the surface of the mounting post 31; a mounting groove 21 is provided at the position corresponding to the mounting post 31, and an L-shaped locking groove 22 is provided in the mounting groove 21, with the locking block 32 locking in the locking groove 22. When the mounting post 31 is inserted into the mounting groove 21, and the scissor head 2 is rotated, the scissor head 2 and the scissor handle 3 can be firmly fixed together, facilitating disassembly and replacement. After the scissor head 2 is rotated and fixed, the two scissor heads 2 are in a horizontal state, and can perform cutting actions under the action of the scissor handle 3.

[0025] In one embodiment, a lever 6 extends from the intersection of the scissor handles 3 outwards from the housing. The surface of the housing 1 has a lever groove 12 and a fixing groove 13. The lever 6 passes through the lever groove 12 and is engaged within the fixing groove 13. One end of the lever 6 extending out of the housing 1 is movably connected to the lever 6, allowing it to move along the lever groove 12 in a straight line, or to be bent and embedded into the fixing groove 13 to maintain its position. A pivot is provided at the intersection of the two scissor handles 3, and the lever 6 is rotatably and fixedly connected to it.

[0026] In one embodiment, a first slide rail 14 is provided inside the housing 1 at the portion corresponding to the intersection of the scissor handles 3. A first slider extends from the intersection of the scissor handles 3, and the first slider is slidably connected to the first slide rail 14. The first slide rail 1 and the first slider can limit the movement of the scissor handles 3, ensuring the accuracy of the movement of the scissor handles 3. The pivot at the intersection of the scissor handles 3 is connected to the first slider at the same end corresponding to the first slide rail.

[0027] In one embodiment, baffles 45 are provided at both ends of the guide rod 44, and a spring 43 is sleeved on the outside of the guide rod 44 and connected to the baffles 45. The baffles 45 can limit the movement position of the moving block 42 to ensure the accuracy of the opening and closing of the scissor head 2. In one embodiment, a buffer pad 46 is provided at the end of the guide rod 44 away from the spring 43, and the buffer pad 46 is connected to the baffle 45. The buffer pad 46 can prevent the moving block 42 from impacting the baffle 45.

[0028] In one embodiment, the housing 1 is provided with a second slide rail 15 corresponding to the movable block 42, and a second slider is provided on the surface of the movable block 42, the second slider being slidably connected to the second slide rail 15. The second slider and the second slide rail 15 can limit the movement of the movable block 42, preventing the movable block 42 from deflecting during movement.

[0029] In one embodiment, the toothed side of the movable block 42 is connected to two half-tooth gears 52, and the two half-tooth gears 52 are connected to each other.

[0030] In one embodiment, a switch button 16 is provided on the surface of the housing 1, and the switch button 16 is connected to the motor 51.

[0031] In one embodiment, the housing 1 is connected to a handle 17, and the handle 17 contains a battery, which is connected to the motor 51 and the switch button 16.

[0032] Working principle: When changing the shear head as needed for cutting tissue: Move lever 6 to fully expose shear head 2, then rotate shear head 2 to replace it. Then insert another shear head 2 and rotate it to complete the installation. After installation, reset lever 6, then rotate the end of lever 6 to embed it into the fixing groove 13 to fix the position of the cross part of shear handle 3.

[0033] When cutting, press the switch button 16. The motor 51 drives the half-tooth gear 52 to rotate. The half-tooth gear 52 drives the moving block 42 to move and compress the spring 43, which in turn drives the moving rod 41 and the scissor handle 3 to move, so that the two scissor heads 2 close to cut. When the half-tooth gear 52 rotates half a turn, it no longer meshes with the moving block 42. Under the action of the spring 43, the moving block 42 will return to its original position, and the scissor heads 2 will separate. This continuous cutting action is performed.

[0034] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electric handheld homogenizer for mincing laboratory animal tissues, characterized in that, include: The housing has a shearing end with a scissor opening for the shear head to pass through; The scissor head is inserted into the scissor blade; The scissor handle is detachably connected to the scissor head, and the two scissor handles are arranged in a cross pattern. A shearing moving assembly includes: a moving rod, a moving block, a spring, and a guide rod; the guide rod is disposed inside the housing, the moving block is sleeved on the outside of the guide rod and slidably connected to the guide rod; one end of the moving block is hinged to the moving rod, and the other end of the moving rod is connected to the shear handle; the other end of the moving block is connected to the spring, and the other end of the spring is connected to the housing; A drive assembly, comprising: a motor and a half-gear; teeth are provided on the side of the moving block, the teeth of the moving block meshing with the teeth of the half-gear, and the output end of the motor being connected to the half-gear.

2. The electric handheld homogenizer for mincing laboratory animal tissue according to claim 1, characterized in that, A mounting post is provided at one end of the scissor handle that connects to the scissor head, and a locking block is provided on the surface of the mounting post; a mounting groove is provided at the position corresponding to the mounting post of the scissor head, and an L-shaped locking groove is provided in the mounting groove, and the locking block is locked in the locking groove.

3. The electric handheld homogenizer for mincing laboratory animal tissue according to claim 2, characterized in that, The cross portion of the scissor handle extends into the outside of the housing as a lever. The housing surface is provided with a lever groove and a fixing groove. The lever passes through the lever groove and is engaged in the fixing groove.

4. The electric handheld homogenizer for mincing laboratory animal tissue according to claim 1, characterized in that, The housing is provided with a first slide rail at the part corresponding to the intersection of the scissor handles, and a first slider extends from the intersection of the scissor handles, with the first slider slidably connected to the first slide rail.

5. The electric handheld homogenizer for mincing laboratory animal tissue according to claim 1, characterized in that, The guide rod is provided with baffles at both ends, and the spring is sleeved on the outside of the guide rod and connected to the baffles.

6. The electric handheld homogenizer for mincing laboratory animal tissue according to claim 5, characterized in that, A buffer pad is provided at the end of the guide rod away from the spring, and the buffer pad is connected to the baffle.

7. The electric handheld homogenizer for mincing laboratory animal tissue according to claim 1, characterized in that, The housing is provided with a second slide rail corresponding to the movable block, and the surface of the movable block is provided with a second slider, which is slidably connected to the second slide rail.

8. The electric handheld homogenizer for mincing laboratory animal tissue according to claim 1, characterized in that, The moving block has two half-tooth gears connected to its toothed side, and the two half-tooth gears are connected to each other.

9. The electric handheld homogenizer for mincing laboratory animal tissue according to claim 1, characterized in that, A switch button is provided on the surface of the housing, and the switch button is connected to the motor.

10. The electric handheld homogenizer for shredding laboratory animal tissue according to claim 9, characterized in that, The housing is connected to a handle, and the handle contains a battery, which is connected to the motor and the switch button.

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