A new type of extraction scissors for mesenchymal stem cells

Abstract

The utility model discloses a novel mesenchymal stem cell's extraction scissors, including main part, lower blade, upper blade and drive part, lower blade fixed mounting is in the main part end, and upper blade sets up in the connecting piece side wall, and connecting piece hinged mounting is in the main part, and drive part sets up in the main part, and drive part is driven to be connected with connecting piece, and drive part can drive connecting piece rotation and make upper blade and lower blade close or away from each other. The utility model discloses adopt electric drive to carry out shearing action, replace manual shearing, can reduce the damage to operator during experiment, reduced the operator's operation difficulty, convenient and fast, time -saving and labor -saving, improve experimental efficiency, and the utility model discloses the blade part all adopts arc, is convenient for shearing cylindrical bone, and electric drive makes shearing effect better, and the incision is more neat.

Description

Technical Field

[0001] This utility model relates to a novel set of scissors for extracting mesenchymal stem cells, belonging to the field of medical experimental equipment technology. Background Technology

[0002] Bone marrow mesenchymal stem cells (BMSCs) are stromal cells found in the bone marrow. They serve as a supporting structure and act as a trophoblast to support the growth of hematopoietic stem cells, hence the name bone marrow stromal stem cells. As a type of stem cell, they also possess multi-lineage differentiation potential. Under certain environmental conditions and the influence of cytokines, they can be induced to differentiate into osteocytes, neuron-like cells, adipocytes, chondrocytes, cardiomyocytes, etc. They can be defined as bone marrow mesenchymal cells with multi-differentiation capacity and the ability to self-renew and replicate. Their various advantages make them highly promising candidates for clinical stem cell transplantation therapy. Currently, they are widely used in areas such as cartilage repair and nerve cell regeneration.

[0003] In the process of mesenchymal stem cell extraction, the surface muscles of the bone need to be cleaned, and the epiphyses at both ends need to be cut open with scissors to extract the bone marrow mesenchymal stem cells inside the bone. In existing technologies, ordinary surgical scissors are usually used. Using straight scissors is laborious, and when the experimental volume is large, it is easy to wear down the operator's index finger and thumb. It also increases the difficulty of operation and reduces experimental efficiency. Therefore, we propose a new type of scissors for extracting mesenchymal stem cells. Utility Model Content

[0004] The purpose of this invention is to provide a novel type of mesenchymal stem cell extraction scissors that uses electric drive to replace manual force, making it quick and convenient to use and improving experimental efficiency.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a novel set of scissors for extracting mesenchymal stem cells, comprising... The main body is shaped for easy gripping and has anti-slip textures on its surface. The lower blade is fixedly installed at the end of the main body. The upper blade is disposed on the side wall of the connector, the connector is hingedly installed inside the main body, and the upper blade extends out along the end of the main body and the blade portion is disposed opposite to the blade portion of the lower blade. The driving part is located inside the main body and is connected to the connecting member. The driving part can drive the connecting member to rotate so that the upper and lower blades move closer or further apart. The driving part drives the upper and lower blades to move closer and overlap to complete the shearing action.

[0006] The aforementioned novel mesenchymal stem cell extraction scissors include a drive unit comprising a drive motor and a transmission component. The drive motor is disposed within the main body, and its output end is connected to the transmission component via a reducer. The transmission component has locking teeth on its sidewall. The connecting member is circular and rotatably mounted within the main body cavity via a pin. The connecting member has grooves on its sidewall corresponding to the locking teeth of the transmission component. The transmission component fits against the surface of the connecting member and meshes with it. The reducer reduces the rotational speed and increases the torque. The drive motor, through the transmission component, drives the connecting member to rotate, enabling the upper and lower blades to complete the cutting and separation action.

[0007] The aforementioned novel mesenchymal stem cell extraction scissors have a power supply slot at the tail of the main body, in which a power supply is installed. The tail of the main body is also provided with a tail cap for sealing the power supply slot. The power supply can be a rechargeable battery, and the tail cap is designed to be detachable for easy replacement of the power supply.

[0008] The aforementioned novel mesenchymal stem cell extraction scissors have a control board installed in the inner cavity of the main body. The control board is electrically connected to a drive motor and a power supply. The control board uses a PCB board control circuit to control the rotation and direction of the drive motor.

[0009] The aforementioned novel mesenchymal stem cell extraction scissors have a trigger section on the lower side of the main body. The trigger section contains a trigger, and the trigger has a contact point electrically connected to a control board. Pulling the trigger causes the contact point to contact and send an electrical signal to the control board, controlling the drive motor to rotate forward, which drives the upper blade to work in conjunction with the lower blade to complete the cutting action. Releasing the trigger causes the control board to control the drive motor to rotate in the reverse direction, causing the upper blade to separate from the lower blade and return to its initial position.

[0010] The aforementioned novel mesenchymal stem cell extraction scissors have both the lower and upper blades in an arc shape, which facilitates the cutting of cylindrical bones.

[0011] The aforementioned novel mesenchymal stem cell extraction scissors also includes a clamping part. The end sidewall of the main body near the lower and upper blades is provided with a snap-fit ​​block. The clamping part is snapped onto the snap-fit ​​block and fixed to the side of the main body. The clamping part can be used to clamp bone, which is convenient for fixing during cutting.

[0012] The aforementioned novel mesenchymal stem cell extraction scissors include a clamping part comprising an installation part that snaps onto a clamping block. A lower clamping part is located at the bottom front end of the installation part. An upwardly extending telescopic rod is located inside the front end of the installation part. The end of the telescopic rod extends upward beyond the installation part, and an upper clamping part is located on its side wall. The telescopic rod can be an electric or hydraulic telescopic rod. The telescopic rod allows the upper clamping part to move up and down, cooperating with the lower clamping part to clamp and fix the bone.

[0013] The aforementioned novel mesenchymal stem cell extraction scissors include a T-shaped slot at the rear end of the mounting part. A T-shaped locking block is inserted into the T-shaped slot. A circuit connection plug is provided inside the T-shaped slot. The insertion end of the locking block is provided with a circuit connection slot that can be connected to the circuit connection plug. The main body is provided with a clamping switch. Both the circuit connection slot and the clamping switch are electrically connected to a control board. Magnetic strips that can attract each other are provided inside the T-shaped slot and the insertion end of the locking block. The mounting part can be installed on the side wall of the main body through the locking block and the T-shaped slot. The circuit connection plug and the circuit connection slot connect the circuit of the clamping part with the circuit inside the main body for power supply and control.

[0014] The aforementioned novel mesenchymal stem cell extraction scissors have an upper side of the lower clamping part that is arc-shaped like the lower blade, and the upper side of the lower clamping part is at the same height as the lower blade, so that the bone being clamped and fixed fits against the lower blade, facilitating cutting. The lower clamping part can also be adjusted in height using an adjustable structure.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: (1) This utility model uses electric drive to perform the shearing action, replacing manual shearing, which can reduce the damage to the operator during the experiment, reduce the difficulty of operation for the operator, and is convenient, quick and easy to use, saving time and effort, and improving experimental efficiency.

[0016] (2) The blade of this utility model is all arc-shaped, which makes it easy to cut cylindrical bones, and the electric drive makes the cutting effect better and the cut neater.

[0017] (3) This utility model is also equipped with a detachable clamping part for clamping and fixing the bone, which can stabilize the bone, facilitate operation, and save time and effort for the operator; it can also replace manual gripping, which can avoid the bone flying around due to improper gripping, and is more conducive to sterile operation in experiments. At the same time, after fixing, the bone and the scissor head can be inserted into the transparent cover for cutting, preventing bone and bone fragments from flying. Attached Figure Description

[0018] Figure 1 This is the front view of this utility model; Figure 2 This is a cross-sectional view of the internal structure of this utility model; Figure 3 This is a schematic diagram of the drive unit structure of this utility model; Figure 4 This is a front view of the mounting and clamping part of this utility model; Figure 5 This is a schematic diagram of the clamping part structure of this utility model; Figure 6This is a schematic diagram of the installation structure of the snap-fit ​​block and the T-shaped slot of this utility model.

[0019] Reference numerals: 1-Main body, 101-Power supply slot, 102-Tail cover, 103-Control panel, 104-Trigger, 2-Lower blade, 3-Upper blade, 4-Connector, 5-Drive unit, 6-Drive motor, 7-Transmission component, 8-Reducer, 9-Power supply, 10-Trigger, 11-Clamping part, 12-Mounting part, 121-Lower clamping part, 122-Telescopic rod, 123-Upper clamping part, 124-T-shaped slot, 125-Circuit connection plug, 126-Circuit connection slot, 13-Clamping switch, 14-Snap-fit ​​block.

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Detailed Implementation

[0021] Embodiment 1 of this utility model: A novel scissors for extracting mesenchymal stem cells, comprising a main body 1, a lower blade 2, an upper blade 3, and a driving part 5. The main body 1 is shaped for easy gripping and has anti-slip textures on its surface. The lower blade 2 is fixedly installed at the end of the main body 1. The upper blade 3 is disposed on the side wall of a connector 4. The connector 4 is hingedly installed inside the main body 1. The upper blade 3 extends along the end of the main body 1 and its blade portion is positioned opposite to the blade portion of the lower blade 2. The driving part 5 is disposed inside the main body 1. The driving part 5 is connected to the connector 4. The driving part 5 can drive the connector 4 to rotate, causing the upper blade 3 and the lower blade 2 to move closer or further apart. The driving part 5 drives the upper blade 3 and the lower blade 2 to move closer and overlap to complete the cutting action.

[0022] Embodiment 2 of this utility model: A novel scissors for extracting mesenchymal stem cells, comprising a main body 1, a lower blade 2, an upper blade 3, and a driving part 5. The main body 1 is shaped for easy gripping and has anti-slip textures on its surface. The lower blade 2 is fixedly installed at the end of the main body 1. The upper blade 3 is disposed on the side wall of a connector 4, which is hingedly installed inside the main body 1. The upper blade 3 extends along the end of the main body 1 and its blade portion is opposite to that of the lower blade 2. The driving part 5 is disposed inside the main body 1 and connected to the connector 4. Specifically, the driving part 4 includes a drive motor 6 and a transmission component 7. The drive motor 6 is disposed inside the main body 1. The output end of the drive motor 6 is connected to the transmission component 7 through the reducer 8. The side wall of the transmission component 7 is provided with locking teeth. The connecting piece 4 is circular and is rotatably installed in the inner cavity of the main body 1 through a pin. The side wall of the connecting piece 4 is provided with tooth grooves corresponding to the locking teeth of the transmission component 7. The transmission component 7 fits against the surface of the connecting piece 4 and meshes with each other. The reducer 8 reduces the speed and increases the torque. The drive motor 6 can drive the connecting piece 4 to rotate through the transmission component 7, so that the upper blade 3 and the lower blade 2 can complete the shearing and separation action. The drive part 5 can drive the connecting piece 4 to rotate, so that the upper blade 3 and the lower blade 2 can move closer or further apart. The drive part 5 drives the upper blade 3 and the lower blade 2 to move closer and overlap to complete the shearing action.

[0023] Embodiment 3 of this utility model: A novel pair of mesenchymal stem cell extraction scissors, comprising a main body 1, a lower blade 2, an upper blade 3, and a drive unit 5. The main body 1 is shaped for easy gripping and has anti-slip textures on its surface. The lower blade 2 is fixedly installed at the end of the main body 1. The upper blade 3 is disposed on the side wall of a connector 4, which is hinged within the main body 1. The upper blade 3 extends along the end of the main body 1 and its blade portion is opposite to that of the lower blade 2. Both the lower blade 2 and the upper blade 3 have arc-shaped blades for easy cutting of cylindrical bone. The drive unit 5 is disposed within the main body 1 and connected to the connector 4. Specifically, the drive unit 4 includes a drive motor 6 and a transmission component 7. The drive motor 6 is located inside the main body 1. The output end of the drive motor 6 is connected to the transmission component 7 via the reducer 8. The side wall of the transmission component 7 has a locking tooth. The connecting piece 4 is circular and is rotatably mounted in the inner cavity of the main body 1 via a pin. The side wall of the connecting piece 4 has a tooth groove corresponding to the locking tooth of the transmission component 7. The transmission component 7 fits against the surface of the connecting piece 4 and meshes with it. The reducer 8 reduces the speed and increases the torque. The drive motor 6 can drive the connecting piece 4 to rotate through the transmission component 7, so that the upper blade 3 and the lower blade 2 can complete the shearing and separation action. The drive part 5 can drive the connecting piece 4 to rotate, so that the upper blade 3 and the lower blade 2 can move closer or further apart. The drive part 5 drives the upper blade 3 and the lower blade 2 to move closer and overlap to complete the shearing action.

[0024] Specifically, a power supply slot 101 is provided at the rear of the main body 1, and a power supply 9 is installed in the power supply slot 101. A tail cover 102 is provided at the rear of the main body 1 to seal the power supply slot 101. The power supply 9 can be a rechargeable battery, and the tail cover 102 is detachable for easy replacement. A control board 103 is provided inside the main body 1. The control board 103 is electrically connected to the drive motor 6 and the power supply 9. The control board 103 uses a PCB board control circuit to control the drive motor 6. The main body 1 has a trigger 104 on its lower side for rotation and direction. The trigger 104 contains a trigger 10. The trigger 10 has a contact that is electrically connected to the control board 103. Pulling the trigger 10 causes the contact to make contact and send an electrical signal to the control board 103, which controls the drive motor 6 to rotate in the forward direction, causing the upper blade 3 to move and cooperate with the lower blade 2 to complete the shearing action. Releasing the trigger 10 causes the control board 103 to control the drive motor 6 to rotate in the reverse direction, causing the upper blade 3 to move and separate from the lower blade 2 to return to the initial position.

[0025] Embodiment 4 of this utility model: A novel pair of mesenchymal stem cell extraction scissors, comprising a main body 1, a lower blade 2, an upper blade 3, and a drive unit 5. The main body 1 is shaped for easy gripping and has anti-slip textures on its surface. The lower blade 2 is fixedly installed at the end of the main body 1. The upper blade 3 is disposed on the side wall of a connector 4, which is hinged within the main body 1. The upper blade 3 extends along the end of the main body 1 and its blade portion is opposite to that of the lower blade 2. Both the lower blade 2 and the upper blade 3 have arc-shaped blade portions, facilitating the cutting of cylindrical bone. The drive unit 5 is disposed within the main body 1 and connected to the connector 4. Specifically, the drive unit 4 includes a drive motor 6 and a transmission component 7. The drive motor 6 is located inside the main body 1. The output end of the drive motor 6 is connected to the transmission component 7 via the reducer 8. The side wall of the transmission component 7 has a locking tooth. The connecting piece 4 is circular and is rotatably mounted in the inner cavity of the main body 1 via a pin. The side wall of the connecting piece 4 has a tooth groove corresponding to the locking tooth of the transmission component 7. The transmission component 7 fits against the surface of the connecting piece 4 and meshes with it. The reducer 8 reduces the speed and increases the torque. The drive motor 6 can drive the connecting piece 4 to rotate through the transmission component 7, so that the upper blade 3 and the lower blade 2 can complete the shearing and separation action. The drive part 5 can drive the connecting piece 4 to rotate, so that the upper blade 3 and the lower blade 2 can move closer or further apart. The drive part 5 drives the upper blade 3 and the lower blade 2 to move closer and overlap to complete the shearing action.

[0026] It also includes a clamping part 11. A snap-fit ​​block 14 is provided on the end side wall of the main body 1 near the lower blade 2 and upper blade 3. The clamping part 11 is snapped onto the snap-fit ​​block 14 and fixed to the side of the main body 1. The clamping part 11 can be used to clamp bone for easy fixation during cutting. The clamping part 11 includes a mounting part 12, which is snapped onto the snap-fit ​​block 14. A lower clamping part 121 is provided at the bottom of the front end of the mounting part 12, and a lower clamping part 121 is provided inside the front end of the mounting part 12. An upwardly extendable telescopic rod 122 extends upward from the mounting portion 12 and has an upper clamping portion 123 on its side wall. The telescopic rod 122 can be an electric or hydraulic telescopic rod. The telescopic rod 122 allows the upper clamping portion 123 to move up and down, cooperating with the lower clamping portion 121 to clamp and fix the bone. A T-shaped slot 124 is provided at the rear end of the mounting portion 12, and the locking block 14 is inserted into the T-shaped slot 124 in a T-shape. The T-shaped slot 124 has a circuit connection plug 125 inside. The insertion end of the snap-fit ​​block 14 has a circuit connection slot 126 that can be plugged into the circuit connection plug 125. The main body 1 has a clamping switch 13. Both the circuit connection slot 126 and the clamping switch 13 are electrically connected to the control board 103. The T-shaped slot 124 and the insertion end of the snap-fit ​​block 14 are provided with magnetic strips that can attract each other. The mounting part 12 can be connected via the snap-fit ​​block 14 and... T-shaped slot 124 is installed on the side wall of the main body 1. Circuit connection plug 125 and circuit connection slot 126 connect the circuit of clamping part 11 to the circuit inside the main body 1 for power supply and control. The upper side of the lower clamping part 121 is arc-shaped like the blade of the lower blade 2, and the upper side of the lower clamping part 121 is at the same height as the blade of the lower blade 2, so that the bone clamped and fixed is attached to the lower blade 2 for easy cutting. The lower clamping part 121 can be adjusted in height using an adjustable structure.

[0027] Specifically, a power supply slot 101 is provided at the rear of the main body 1, and a power supply 9 is installed in the power supply slot 101. A tail cover 102 is provided at the rear of the main body 1 to seal the power supply slot 101. The power supply 9 can be a rechargeable battery, and the tail cover 102 is detachable for easy replacement. A control board 103 is provided inside the main body 1. The control board 103 is electrically connected to the drive motor 6 and the power supply 9. The control board 103 uses a PCB board control circuit to control the drive motor 6. The main body 1 has a trigger 104 on its lower side for rotation and direction. The trigger 104 contains a trigger 10. The trigger 10 has a contact that is electrically connected to the control board 103. Pulling the trigger 10 causes the contact to make contact and send an electrical signal to the control board 103, which controls the drive motor 6 to rotate in the forward direction, causing the upper blade 3 to move and cooperate with the lower blade 2 to complete the shearing action. Releasing the trigger 10 causes the control board 103 to control the drive motor 6 to rotate in the reverse direction, causing the upper blade 3 to move and separate from the lower blade 2 to return to the initial position.

[0028] The working principle of one embodiment of this utility model is as follows: This utility model uses the drive unit 5 to drive the upper blade 3 to complete the cutting action. The cutting action is electrically driven, replacing manual cutting, which reduces the risk of injury to the operator during experiments, lowers the difficulty of operation, and is convenient, quick, time-saving, and labor-saving, thus improving experimental efficiency. In use, the bone to be cut can be placed on the lower blade 2, and the trigger 10 can be pulled to control the cutting. Alternatively, the clamping part 11 can be installed on the side of the main body 1 to clamp and fix the bone for cutting, thus stabilizing the bone and saving time and effort for the operator. It can also replace manual gripping, preventing the bone from flying around due to improper gripping, which is more conducive to aseptic operation. Furthermore, after fixing, the bone and the scissor head can be inserted into the transparent cover before cutting, preventing bone and bone fragments from flying.

Claims

1. A novel set of scissors for extracting mesenchymal stem cells, characterized in that, include Main body (1); The lower blade (2) is fixedly installed at the end of the main body (1); Upper blade (3), the upper blade (3) is provided on the side wall of the connector (4), the connector (4) is hinged and installed in the main body (1), the upper blade (3) extends out along the end of the main body (1) and the blade part is arranged opposite to the blade part of the lower blade (2); The driving part (5) is located inside the main body (1). The driving part (5) is connected to the connecting member (4). The driving part (5) can drive the connecting member (4) to rotate so that the upper blade (3) and the lower blade (2) move closer or further apart.

2. The novel mesenchymal stem cell extraction scissors according to claim 1, characterized in that, The drive unit (5) includes a drive motor (6) and a transmission component (7). The drive motor (6) is located inside the main body (1). The output end of the drive motor (6) is connected to the transmission component (7) through a reducer (8). The side wall of the transmission component (7) is provided with a locking tooth. The connecting piece (4) is circular and is rotatably installed in the inner cavity of the main body (1) through a pin. The side wall of the connecting piece (4) is provided with a tooth groove corresponding to the locking tooth of the transmission component (7). The transmission component (7) fits against the surface of the connecting piece (4) and meshes with each other.

3. The novel mesenchymal stem cell extraction scissors according to claim 2, characterized in that, The main body (1) is provided with a power supply slot (101) at its tail end, and a power supply (9) is installed in the power supply slot (101). The main body (1) is also provided with a tail cap (102) for sealing the power supply slot (101).

4. The novel mesenchymal stem cell extraction scissors according to claim 3, characterized in that, The main body (1) has a control board (103) inside its cavity, and the control board (103) is electrically connected to the drive motor (6) and the power supply (9).

5. The novel mesenchymal stem cell extraction scissors according to claim 4, characterized in that, A trigger section (104) is provided on the lower side of the main body (1), and a trigger (10) is provided inside the trigger section (104). The trigger (10) has a contact that is electrically connected to the control board (103).

6. A novel set of scissors for extracting mesenchymal stem cells according to claim 1 or 5, characterized in that, The cutting edges of both the lower blade (2) and the upper blade (3) are arc-shaped.

7. The novel mesenchymal stem cell extraction scissors according to claim 6, characterized in that, It also includes a clamping part (11), and a snap-fit ​​block (14) is provided on the end side wall of the main body part (1) near the lower blade (2) and the upper blade (3). The clamping part (11) is snapped onto the snap-fit ​​block (14) and fixed to the side of the main body part (1).

8. The novel mesenchymal stem cell extraction scissors according to claim 7, characterized in that, The clamping part (11) includes a mounting part (12), which is snapped onto the snap-fit ​​block (14). The bottom front end of the mounting part (12) is provided with a lower clamping part (121), and the front end of the mounting part (12) is provided with an upwardly extending telescopic rod (122). The end of the telescopic rod (122) extends upward out of the mounting part (12) and the side wall is provided with an upper clamping part (123).

9. A novel set of scissors for extracting mesenchymal stem cells according to claim 8, characterized in that, The rear end of the mounting part (12) is provided with a T-shaped slot (124). The snap-fit ​​block (14) is inserted into the T-shaped slot (124) in a T-shape. The inner cavity of the T-shaped slot (124) is provided with a circuit connection plug (125). The insertion end of the snap-fit ​​block (14) is provided with a circuit connection slot (126) that can be plugged into and connected to the circuit connection plug (125). The main body (1) is provided with a clamping switch (13). The circuit connection slot (126) and the clamping switch (13) are both electrically connected to the control board (103). The inner cavity of the T-shaped slot (124) and the insertion end of the snap-fit ​​block (14) are provided with magnetic strips that can attract each other.

10. A novel set of scissors for extracting mesenchymal stem cells according to claim 9, characterized in that, The upper side of the lower clamping part (121) is arc-shaped like the blade of the lower blade (2), and the upper side of the lower clamping part (121) is at the same height as the blade of the lower blade (2).

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