Biological tissue chopper

Abstract

The utility model relates to the technical field of cell culture devices, in particular to a biological tissue chopper which comprises a main machine, a cutter assembly and a chopping box, the cutter assembly is connected to the main machine and the chopping box, the cutter assembly is connected to the chopping box, the cutter assembly and the chopping box are connected in a sealed mode, and the chopping box is connected to the main machine. The main machine is used for providing power for working of the cutter assembly and controlling the cutter assembly to conduct up-down vibration chopping work. The biological tissue cutting device solves the technical problems that in the prior art, the biological tissue cutting efficiency is low, and sterile operation is difficult to guarantee, the biological tissue cutting effect is improved, and the sterility and reliability in the biological tissue cutting process are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of cell culture device technology, and in particular to a biological tissue mincer. Background Technology

[0002] Cutting biological tissues is an essential step in stem cell culture, and it is usually done manually or with power tools.

[0003] Currently, manual cutting is usually done using sterilized scissors under sterile conditions. While this method is reliable, it is cumbersome and time-consuming.

[0004] While existing electric cutting devices employ rotating blades for rapid cutting, their cutting effect and precision are often unsatisfactory, and aseptic operation is difficult to guarantee. Furthermore, long-term friction between the spindle and the sealing ring of the electric cutting device can cause particle shedding and leave behind a large amount of previous sample residue, making cleaning extremely difficult. To address these problems, this invention provides a biological tissue mincer, aiming to offer a biological tissue cutting device that is easy to operate, has high cutting efficiency, effectively reduces cross-contamination, and ensures aseptic operation. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the related art. To this end, this invention provides a biological tissue mincer, which solves the technical problems of low biological tissue cutting efficiency, difficulty in cleaning and sterilization, high risk of contamination and cross-contamination, and difficulty in ensuring aseptic operation in the prior art. It improves the mincing effect of biological tissues and ensures asepticity and reliability in the biological tissue mincing process.

[0006] This utility model provides a biological tissue mincer, including a main unit, a cutter assembly, and a mincing box. The cutter assembly is connected to the main unit and the mincing box. The cutter assembly and the mincing box are sealed together. The main unit provides power to the cutter assembly and controls the cutter assembly to perform up-and-down vibration mincing.

[0007] A further improvement of this utility model of biological tissue mincer is that the cutting assembly includes a housing and a cutting blade, the top of the housing is connected to the main unit, the bottom of the housing is fastened to the mincing box, and the cutting blade passes through the housing and is driven and connected to the main unit.

[0008] The cutter includes a handle and a blade. The handle portion passes through the housing to form a connecting end, which is driven to the main unit. The blade is fixedly connected to the bottom of the handle.

[0009] A further improvement of this biological tissue mincer is that the blade is an isosceles trapezoid, and the inner wall of the mincing box has an inclined surface, the inclined surface extending in the same direction as the side of the cutter.

[0010] A further improvement of this biological tissue mincer is that the shell is cylindrical, and a corrugated diaphragm is provided on the inner side wall of the shell, through which the blade handle passes.

[0011] A further improvement of this biological tissue mincer is that a buckle is provided at the bottom of the inner side wall of the housing, and a locking platform is provided at the top of the outer side wall of the mincing box. The buckle is engaged with the locking platform to connect the housing and the mincing box.

[0012] A further improvement of this utility model of biological tissue mincer is that the main unit includes a main unit housing, a battery, a motor, a cutter connection assembly, and a control assembly. The battery, the motor, and the cutter connection assembly are located in the main unit housing. The battery and the motor are electrically connected. The control assembly is located on the outer wall of the main unit housing and is connected to the motor. The cutter connection assembly is located inside the main unit housing and is driven and connected to the motor. The connection end is connected to the cutter connection assembly. The housing is connected to the main unit housing.

[0013] A further improvement of this utility model of biological tissue mincer is that a reduction gearbox is also connected to the bottom of the motor, the reduction gearbox has a rotatable motor shaft, the reduction gearbox is connected to the control component, and the reduction gearbox is also provided with a guide rail.

[0014] The cutter connection assembly includes a vibration bracket, a screw, a turbine, an eccentric wheel, and a vibration block. The screw is connected to the motor shaft, the turbine is driven and connected to the screw, the eccentric wheel is driven and connected to the turbine, the vibration block is slidably mounted on the guide rail, and the vibration block has a slotted hole corresponding to the position of the eccentric wheel. The eccentric wheel can reciprocate within the slotted hole. The vibration bracket is sleeved on the guide rail and connected to the vibration block. The end of the vibration bracket away from the motor shaft has a connection port, and the connection end is connected to the connection port.

[0015] A further improvement of this biological tissue mincer is that the guide rail is provided with a guide groove extending along the length of the screw, and the vibrating block is provided with a guide rod at the position corresponding to the guide groove. The guide rod slides in the guide groove and is fixedly connected to the vibrating support.

[0016] A further improvement of this biological tissue mincer is that the control component includes a switch button located on the top of the main housing and a safety button located on the side of the main housing, and the switch button and the safety button are connected to the motor.

[0017] A further improvement of this biological tissue mincer is that it also includes a gripping part disposed on the main body.

[0018] The above-described one or more technical solutions in the embodiments of this utility model have at least one of the following technical effects:

[0019] In this application, the main unit, the blade assembly, and the chopping box of the chopper are all independent parts. Multiple structures of the same biological tissue chopper and multiple biological tissue choppers can be sterilized simultaneously, saving sterilization time.

[0020] The main unit can be matched with different specifications of cutter assemblies and shredding boxes to meet the shredding needs of different batches and different materials, avoid the possibility of contamination and cross-contamination, and greatly improve the sterility of scientific research and production.

[0021] The cutter in the cutter assembly can move up and down, improving the shredding effect on biological tissues. The shell of the cutter assembly is equipped with a corrugated diaphragm to facilitate the isolation of the shredding box and the main unit, avoiding cross-contamination between the main unit and the shredding box.

[0022] By setting the blade and the bottom of the chopping box to match their shapes, dead corners are avoided, improving the chopping effect on biological tissues.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of a biological tissue shredder provided in an embodiment of this utility model.

[0026] Figure 2 yes Figure 1 A cross-sectional schematic diagram of AA.

[0027] Figure 3This is a schematic diagram of the cutter assembly in a biological tissue mincer provided in an embodiment of the present invention.

[0028] Figure 4 This is a schematic diagram of the motor and cutter connection assembly in a biological tissue mincer provided in an embodiment of the present invention.

[0029] Figure 5 yes Figure 4 Schematic diagram of cross section of BB.

[0030] Figure 6 This is an exploded view of the cutter connection assembly in a biological tissue mincer provided in this embodiment of the present invention.

[0031] Figure 7 This is an exploded schematic diagram of the vibrating support and vibrating block in a biological tissue shredder provided in this embodiment of the present invention.

[0032] Figure label:

[0033] 1. Main unit; 2. Cutter assembly; 3. Shredder container;

[0034] 101. Main unit housing; 102. Battery; 103. Motor; 1031. Gearbox; 1032. Guide rail; 104. Eccentric wheel; 1041. Turbine; 105. Screw; 106. Vibrating block; 107. Vibration bracket; 1071. Shock-absorbing pad; 1072. Left side of vibration bracket; 1073. Right side of vibration bracket; 1074. Lower end of vibration bracket; 108. Switch button; 109. Handle; 110. Safety button;

[0035] 201. Housing; 202. Corrugated diaphragm; 203. Handle; 204. Blade. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. The following embodiments are used to illustrate this utility model but should not be used to limit its scope.

[0037] The following is combined with Figure 1 and Figure 2This invention describes a biological tissue mincer, comprising a main unit 1, a cutter assembly 2, and a mincing box 3. The cutter assembly 2 is connected to the main unit 1 and the mincing box 3, and the cutter assembly 2 and the mincing box 3 are sealed together. The main unit 1 provides power to the cutter assembly 2 and controls the cutter assembly 2 to perform up-and-down vibration mincing.

[0038] In a preferred embodiment of this utility model of a biological tissue mincer, such as Figure 2 As shown, the cutter assembly 2 includes a housing 201 and a cutter. The top of the housing 201 is connected to the host 1, and the bottom of the housing 201 is fastened to the chopping box 3. The cutter passes through the housing 201 and is driven to be connected to the host 1. The host 1 drives the cutter to rotate and move up and down, thereby causing the cutter to chop the biological tissue located in the chopping box 3.

[0039] Specifically, such as Figure 2 and Figure 3 As shown, the cutter includes a handle 203 and a blade 204. The handle 203 partially passes through the housing 201 to form a connecting end, which is driven to the host 1. The blade 204 is fixedly connected to the bottom of the handle 203.

[0040] Specifically, the blade 204 is an isosceles trapezoid, and the inner wall of the chopping box 3 is formed with an inclined surface. The inclined surface extends in the same direction as the side of the cutter, thereby avoiding dead angles and improving the chopping effect on biological tissues.

[0041] In another specific implementation, the blade can be semi-circular or arc-shaped, and the bottom sidewall of the shredding box is arc-shaped to match the blade shape.

[0042] Specifically, the housing 201 is cylindrical, and a corrugated diaphragm 202 is provided on the inner side wall of the housing 201. The handle 203 passes through the corrugated diaphragm 202. The corrugated diaphragm 202 serves to seal the chopping box 3 and the main unit 1, preventing biological tissue from contaminating the main unit 1 along the position of the handle 203. It also prevents contaminants from the main unit and the outside from entering the chopping box and contaminating the biological tissue.

[0043] Specifically, a buckle is provided at the bottom of the inner side wall of the housing 201, and a locking platform is provided at the top of the outer side wall of the chopping box 3. The buckle is engaged with the locking platform to connect the housing 201 and the chopping box 3.

[0044] It should be noted that the shredder 3 and the housing 201 can also be connected by threads, magnetic attraction, tenon and mortise, etc. This application does not impose specific restrictions on the connection method of the shredder 3 and the housing 201.

[0045] Furthermore, such as Figure 2 As shown, the host 1 includes a host housing 101, a battery 102, a motor 103, a cutter connection assembly, and a control assembly. The battery 102, the motor 103, and the cutter connection assembly are located in the host housing 101. The battery 102 and the motor 103 are electrically connected. The control assembly is located on the outer wall of the host housing 101 and is connected to the motor 103. The cutter connection assembly is located inside the host housing 101 and is driven by the motor 103. The connection end is connected to the cutter connection assembly. The housing 201 is connected to the host housing 101.

[0046] Preferably, the outer wall of the main housing 101 corresponding to the position of the battery 102 is smooth, the outer wall of the main housing 101 corresponding to the position of the motor 103 is wavy, the outer wall of the main housing 101 corresponding to the position of the cutter connecting assembly is smooth, and a main housing connecting platform is formed at the bottom of the main housing 101, and the housing 201 is sleeved and connected to the main housing connecting platform.

[0047] Specifically, such as Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, a reduction gearbox 1031 is also connected to the bottom of the motor 103. The reduction gearbox 1031 has a rotatable motor shaft that is off-center. The reduction gearbox 1031 is connected to the control component. The reduction gearbox 1031 is also provided with a guide rail 1032.

[0048] The cutter connection assembly includes a vibration bracket 107, a screw 105, a turbine 1041, an eccentric wheel 104, and a vibration block 106. The screw 105 is connected to the motor shaft, the turbine 1041 is driven and connected to the screw 105, the eccentric wheel 104 is driven and connected to the turbine, and the vibration block 106 is slidably disposed on the guide rail. The vibration block 106 has a strip-shaped hole corresponding to the position of the eccentric wheel 104. The eccentric wheel 104 can rotate within the strip-shaped hole driven by the turbine 1041. The vibration block 106 reciprocates along the extension direction of the strip-shaped hole. The vibration bracket 107 is sleeved on the guide rail 1032 and connected to two vibration blocks 106. The end of the vibration bracket away from the motor shaft has a connection port, and the connection end is connected to the connection port.

[0049] Preferably, a shock-absorbing pad 1071 is provided inside the connection port to buffer the vibration of the cutter and prevent damage to the blade.

[0050] Specifically, such as Figure 6 and Figure 7As shown, the guide rail 1032 has a guide groove extending along the length of the screw, and the vibration block is provided with a guide rod at the position corresponding to the guide groove. The guide rod slides in the guide groove and is fixedly connected to the vibration bracket.

[0051] Specifically, the vibrating block 106 has a rectangular cross-section, and the vibrating bracket 107 has a rectangular groove inside. The vibrating block 106 is located in the rectangular groove. The vibrating bracket 107 includes a left side portion 1072, a right side portion 1073, and a lower end portion 1074. A rectangular groove is formed between the left side portion and the right side portion of the vibrating bracket. A connection port is opened at the lower end portion of the vibrating bracket. Guide rod insertion holes are opened on the left side portion and the right side portion of the vibrating bracket at the positions corresponding to the guide rods. The right side portion and the left side portion of the vibrating bracket are separated. One end of the guide rod is inserted into the guide rod insertion hole on the left side portion of the vibrating bracket. Then, the right side portion of the vibrating bracket is connected to the left side portion of the vibrating bracket. The other end of the guide rod is inserted into the guide rod insertion hole on the right side portion of the vibrating bracket. Finally, the left side portion of the bracket and the right side portion of the vibrating bracket are fixedly connected using bolts.

[0052] Preferably, there are two turbines and two eccentric wheels 104, with each turbine and eccentric wheel 104 being driven and connected.

[0053] Specifically, such as Figure 6 and Figure 7 As shown, the guide rail 1032 includes a guide sleeve with a rectangular cross-section and a guide end cap fixed to the end of the guide sleeve away from the gearbox. One end of the screw 105 is connected to the motor shaft and the other end is rotatably connected to the guide end cap. A guide groove is opened in the guide sleeve. A guide connecting rod is rotatably provided on the side wall of the guide sleeve. The guide connecting rod is perpendicular to the screw. The turbine 1041 is connected to the guide connecting rod and driven by the screw. An eccentric wheel is connected to the guide connecting rod.

[0054] Specifically, such as Figure 6 As shown, the vibrating block includes two symmetrically arranged C-shaped vibration connecting parts, a vibration middle part connected to the two vibration connecting parts, and a guide rod fixed to the vibration connecting parts. A strip-shaped hole is opened in the vibration middle part.

[0055] The screw rotates, which drives the turbine to rotate, which in turn drives the guide connecting rod to rotate, which in turn drives the eccentric wheel to rotate, which in turn drives the vibrating block to move up and down, which in turn drives the guide rod to slide along the guide groove, thus driving the vibrating support to move up and down.

[0056] Specifically, when the motor 103 is turned on, the motor 103 controls the reduction gearbox 1031 to work, the reduction gearbox 1031 controls the screw 105 to rotate, so the screw 105 drives the turbine to rotate, and the turbine drives the eccentric wheel 104 to rotate, thereby driving the vibrating block 106 to reciprocate in the up and down direction, thereby driving the vibrating support 107 to move up and down, so as to drive the cutter to move up and down, thereby cutting up biological tissue.

[0057] Furthermore, the control components include a switch button 108 located on the top of the main housing 101 and a safety button 110 located on the side of the main housing 101. The switch button 108 and the safety button 110 are connected to the motor 103. When using the shredder, the motor 103 and the gearbox 1031 are started by pressing the safety button 110 and the switch button 108.

[0058] Furthermore, it also includes a grip portion disposed on the host 1, which is a handle 109.

[0059] Preferably, the cutter assembly 2 and the chopping box 3 are used as a set, and their materials are stainless steel or polytetrafluoroethylene, which can be sterilized by moist heat.

[0060] In a specific implementation case, the sterilization operation of the main unit 1 is as follows: During use, the operator can first fully charge the battery 102, clean the main unit 1, and then transfer it to the sterile area (taking the isolator as an example). The main unit 1 can enter through the VHP transfer window or be placed in the isolator together with other equipment for sterilization with hydrogen peroxide on the outer surface.

[0061] Sterilization procedure for cutter assembly 2 and chopping box 3: After one or more sets of cutter assembly 2 and chopping box 3 are sterilized by moist heat, they are placed in sterile breathing bags and the bags are sealed (at least 2 bags). They can then be placed through a VHP pass-through window or placed in an isolator along with other equipment for hydrogen peroxide sterilization of the outer surface. After sterilization, the user can use the equipment in a sterile area by tearing open the sterile bag.

[0062] After the main unit 1, the cutter assembly 2, and the chopping box 3 are sterilized, the user selects the appropriate cutter assembly 2 and chopping box 3. After taking out the chopping box 3, the user cuts out the appropriate sterile biological tissue with scissors. After pretreatment, the tissue is placed in the chopping box 3 and roughly cut with scissors. Then, the cutter assembly 2 is tightened to the chopping box 3. After placing the cutter in a vertical position, the cutter assembly 2 is connected to the main unit 1.

[0063] The user holds the connected shredder, presses the safety button 110 with their index finger, and then presses the power button with their thumb. At this time, the motor 103 is powered on and starts. The motor 103 controls the gearbox 1031 to work, and the gearbox 1031 controls the screw 105 to rotate. The screw 105 drives the turbine to rotate, which in turn drives the eccentric wheel 104 to rotate. This causes the vibrating block 106 to reciprocate in the up and down direction, which in turn causes the vibrating bracket 107 to move up and down. This causes the cutter to move up and down. The cutter uses the bottom inner surface of the shredding box 3 as an anvil, thereby shredding the biological tissue in the shredding box 3.

[0064] During the chopping process, the user can stop chopping according to the chopping situation, hold the main unit 1 firmly, and use the wrist to swing and stir the device to mix the biological tissue in the chopping box 3. After restarting the device, chopping will continue. This action will be repeated several times during the process until chopping is completed.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A biological tissue mincer characterized by comprising: The utility model provides a cutting knife assembly and a cutting box, and the cutting knife assembly is connected to the main machine and the cutting box, and the cutting knife assembly and the cutting box are sealedly connected, the main machine is used to provide power for the cutting knife assembly to work, and the main machine is used to control the cutting knife assembly to carry out up and down vibration cutting work.

2. The biological tissue mincer according to claim 1, characterized by The cutting knife assembly comprises a shell and a cutting knife, the top of the shell is connected to the main machine, the bottom of the shell is buckled to the cutting box, and the cutting knife is arranged in the shell and is drivingly connected to the main machine. The cutting knife comprises a handle and a blade, the handle partially penetrates the shell to form a connecting end, the connecting end is drivingly connected to the main machine, and the blade is fixedly connected to the bottom of the handle.

3. The biological tissue mincer according to claim 2, characterized by The blade is isosceles trapezoidal, and the inner side wall of the cutting box is formed with an inclined surface, the inclined surface has the same extension direction as the side surface of the cutting knife.

4. The biological tissue mincer according to claim 2, wherein The shell is cylindrical, the inner side wall of the shell is provided with a corrugated diaphragm, and the handle penetrates the corrugated diaphragm.

5. The biological tissue mincer according to claim 2, wherein The inner side wall of the shell is provided with a buckle at the bottom, the outer side wall of the cutting box is provided with a clamping table at the top, the buckle is clamped to the clamping table to connect the shell and the cutting box.

6. The biological tissue mincer according to claim 2, wherein The main machine comprises a main machine shell, a battery, a motor, a cutting knife connecting assembly and a control assembly, the battery, the motor and the cutting knife connecting assembly are located in the main machine shell, the battery and the motor are electrically connected, the control assembly is located on the outer side wall of the main machine shell and is connected to the motor, the cutting knife connecting assembly is located in the main machine shell and is drivingly connected to the motor, the connecting end is connected to the cutting knife connecting assembly, and the shell is connected to the main machine shell.

7. The biological tissue mincer according to claim 6, characterized by The bottom of the motor is further connected with a speed reducer, the speed reducer has a rotatable motor shaft, the speed reducer is connected to the control assembly, and the speed reducer is further provided with a guide rail. The cutting knife connecting assembly comprises a vibration support, a screw rod, a turbine, an eccentric wheel and a vibration block, the screw rod is connected to the motor shaft, the turbine is drivingly connected to the screw rod, the eccentric wheel is drivingly connected to the turbine, the vibration block is slidingly arranged on the guide rail, a strip-shaped hole is formed in the vibration block corresponding to the position of the eccentric wheel, the eccentric wheel can reciprocate in the strip-shaped hole, the vibration support is sleeved on the guide rail and is connected to the vibration block, an end of the vibration support away from the motor shaft is provided with a connecting port, and the connecting end is connected to the connecting port.

8. The biological tissue mincer according to claim 7, characterized by The guide rail is provided with a guide groove extending along the length direction of the screw rod, and the vibration block is provided with a guide rod corresponding to the position of the guide groove, the guide rod is slidingly arranged in the guide groove and is fixedly connected to the vibration support.

9. The biological tissue mincer according to claim 7, characterized by The control assembly comprises a switch button located at the top of the main machine shell and a safety button located at the side of the main machine shell, and the switch button and the safety button are connected to the motor.

10. The biological tissue mincer according to claim 1, characterized by A holding part is further arranged on the main machine.

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