Electrically powered, continuously firing ligature clip applier with misfire prevention safety

Abstract

The application relates to an electric continuous firing ligation clamping forceps with an anti-misfire safety device, belonging to the field of medical instruments. The electric continuous firing ligation clamping forceps comprises a fixed handle, a direct current motor, a motor control switch, a motor control circuit board, a motor transmission gear, a transmission rack, a pushing block, a battery, a safety button, a ligation clamp pushing rod, a ligation clamp pushing rod reset spring, a sleeve pushing rod, a sleeve, a sleeve reset spring, a rotating handle, a clamp seat, upper and lower clamping heads, a clamp seat cover plate and a pushing piece; the fixed handle is composed of an upper fixed handle and a lower fixed handle; the rotating handle is sleeved on the front end of the fixed handle; the sleeve pushing rod and the ligation clamp pushing rod are installed in a pushing rod installation groove, the front part of the ligation clamp reset spring is sleeved on the rear part of the sleeve pushing rod, and the rear end is abutted against the ligation clamp pushing rod; the direct current motor and the motor control circuit board are respectively installed in the middle part of the lower fixed handle, and the battery is installed on the inner side of the lower fixed handle. The clamp seat, the clamp seat cover plate and the pushing piece are inserted in the sleeve, and the sleeve is fixedly connected with the sleeve pushing rod.

Description

Technical Field

[0001] This invention relates to an electrically operated, continuously firing ligation clamp with a safety feature to prevent accidental firing, belonging to the field of medical devices. Background Technology

[0002] During laparoscopic surgery, hemostasis is necessary for severed tissues or blood vessels. Currently, the commonly used clinical method is to use ligation clips to ligate the tissues or blood vessels for hemostasis. The ligation clips currently used are primarily manually fired, and due to inconsistent firing force and speed among practitioners, it is difficult to control consistently, which can easily cause damage to the ligation clips. This may result in postoperative clip dislodgement, leading to postoperative bleeding and the need for a second surgery. Summary of the Invention

[0003] The purpose of this invention is to address the above-mentioned shortcomings by providing an electric continuous-fire ligation clamp with a safety device to prevent accidental firing. The electric continuous-fire ligation clamp not only reduces the shaking caused by manual clamping, making it more stable and labor-saving, but also meets the needs of different surgeries, reduces instrument waste, and allows for consistent firing speed and clamping force, preventing damage to the ligation clamp and reducing patient suffering.

[0004] The electrically operated ligature clamp with anti-misfire safety is achieved through the following technical solution: The electric continuous-fire clamp with anti-accidental firing safety includes a fixed handle, a DC motor, a motor control switch, a motor control circuit board, a motor drive gear, a drive rack, a push block, a battery, a safety button, a ligation clamp push rod, a ligation clamp push rod return spring, a sleeve push rod, a sleeve, a sleeve return spring, a rotating handle, a clamp base, upper and lower clamps, a clamp base cover plate, and a push plate.

[0005] The fixed handle consists of an upper fixed handle and a lower fixed handle. The upper fixed handle is fixed to one side of the lower fixed handle via a positioning pin and a positioning hole. The rotating handle is fitted onto the front end of the fixed handle. The lower fixed handle is provided with a push rod mounting groove on its upper part. The sleeve push rod and the ligation clip push rod are installed in the push rod mounting groove. The front part of the ligation clip return spring is fitted onto the rear part of the sleeve push rod, and the rear end rests against the ligation clip push rod. The ligation clip push rod pushes the ligation clip and resets after clamping it onto the target tissue.

[0006] The ligation clip push rod has a push block slot at its rear end, and a push block with a U-shaped groove is mounted on the upper part of the transmission rack. A rack sliding groove is provided at the lower part of the push rod mounting groove, and the transmission rack is installed in the rack sliding groove. The push block is engaged with the push block slot at the rear end of the ligation clip push rod via the U-shaped groove, for pushing the ligation clip push rod.

[0007] The DC motor and motor control circuit board are respectively installed in the middle of the lower fixed handle. The battery is installed on the lower inner side of the lower fixed handle.

[0008] The clamp seat, clamp seat cover plate, and push plate are inserted into the sleeve. The rear part of the sleeve passes through the rotating handle and is fixedly connected to the sleeve push rod. The sleeve return spring is fitted into the rear part of the sleeve. The front end of the sleeve return spring abuts against the inner front end of the rotating handle, and the rear end of the sleeve return spring abuts against the front end of the sleeve push rod. It is used to fire the sleeve to push the upper and lower clamps, so that the jaws of the upper and lower clamps close and clamp the ligation clip onto the target tissue before resetting.

[0009] The safety button is installed on one side of the fixed handle. The safety button is connected to the micro switch through the safety control block. When the safety button is opened, it is connected to the motor control circuit board through the micro switch and wires, so that the DC motor power supply can be turned on and the DC motor can work. The safety button can prevent accidental activation.

[0010] The DC motor is a miniature, low-voltage, reversible DC motor controlled by a motor control switch. It can rotate in both directions via a gear drive that moves a rack and pinion. The forward and reverse rotation of the DC motor is controlled by changing the polarity of the electrodes. Therefore, only the wiring of the two electrodes needs to be controlled. To make the motor rotate forward, connect the positive terminal of the power supply to the positive terminal of the motor and the negative terminal to the negative terminal using the motor control switch. To make the motor rotate in reverse, connect the positive terminal of the power supply to the negative terminal of the motor and the negative terminal to the positive terminal.

[0011] The output shaft of the DC motor is equipped with a motor drive gear that meshes with the drive rack, which can drive the drive rack to move, and push the ligation clip push rod and sleeve push rod to move through the push block.

[0012] The motor control circuit board controls the rotation of the motor. The motor control circuit board is equipped with a PCB printed circuit board and contains motor control circuits, components, and micro switches.

[0013] The motor control switch is mounted on the front side of the lower fixed handle. The motor control switch is a push-button switch with a reset button on the top and a firing button on the bottom. It controls the forward and reverse rotation of the motor through microswitches, and drives the ligation clip push rod and sleeve push rod through the push block to achieve the firing and reset purposes.

[0014] Multiple ligation clips are arranged inside the clip holder. The front end of the clip holder is equipped with upper and lower clamps, as well as clamp jaw opening spring plates and clamp jaw positioning spring plates. The clip holder is installed on the upper part of the clip holder cover plate. The rear part of the clip holder cover plate is equipped with a sleeve push rod, which is installed inside the rotating handle. The upper part of the clip holder is equipped with a push plate, and the rear part of the push plate is fixedly connected to the ligation clip push rod.

[0015] The pusher has multiple elastic pusher protrusions for pushing the ligation clips out of the clamp holder. The clamp holder has a ligation clip discharge slot for discharging the ligation clips. The multiple elastic pusher protrusions on the pusher are arranged in a position corresponding to the ligation clip discharge slot in the clamp holder, facilitating the orderly pushing of the ligation clips into the upper and lower clamp jaws at the front end of the clamp holder.

[0016] The rotating handle is mounted on the front end of the fixed handle. Rotating the handle drives the sleeve, the clamp seat inserted in the sleeve, the upper and lower clamps at the front end of the clamp seat, the clamp seat cover plate and the push plate to rotate simultaneously, so that the upper and lower clamps are aligned with the target tissue for clamping.

[0017] The pusher block pushes the ligation clip push rod, which in turn pushes the ligation clip inside the clip holder into the jaws of the upper and lower clamps via the pusher plate. Simultaneously, the pusher block pushes the cannula push rod, which closes the jaws of the upper and lower clamps, clamping the ligation clip onto the target tissue. After each ligation clip is pushed, the pusher plate moves back and forth once. Under the action of the ligation clip push rod return spring and the cannula return spring, it pushes another stroke, aligning with the distance from the ligation clip's placement position inside the clip holder.

[0018] When using the electric continuous-fire ligation clamp with anti-misfire safety, rotate the handle to align the upper and lower clamps with the target tissue to be clamped. Press the fire button at the bottom of the motor control switch for the first time. The DC motor will rotate forward, and the motor drive gear will move the drive rack, which will push the ligation clamp push rod forward through the push block. The ligation clip pusher pushes the ligation clip out of the clip holder and into the jaws of the upper and lower clamps. Opening the safety button connects the microswitch and the motor control circuit board via a wire. Pressing the trigger button a second time rotates the motor forward, driving the transmission rack forward via the transmission gear. The pusher on the transmission rack pushes the sheath pusher and sheath forward, closing the jaws of the upper and lower clamps through the sheath's front end, clamping the ligation clip onto the target tissue. After the first clamping, pressing the reset button on the upper part of the motor control switch reverses the motor, driving the transmission rack backward via the transmission gear. This pusher moves the ligation clip pusher and sheath pusher backward via the pusher block. Under the action of the ligation clip pusher reset spring and the sheath reset spring, the ligation clip pusher, sheath pusher, pusher, sheath, and upper and lower clamps return to their original positions. The same procedure can be repeated for subsequent clamping operations.

[0019] The electric continuous-fire clamp with anti-accidental firing safety is reasonably designed, compact in structure, easy to use and simple to operate. It can easily achieve continuous firing of the double-layer ligation clamp, avoiding repeated insertion and withdrawal of the clamp from the puncture device and shortening the operation time.

[0020] This electrically operated, continuous-fire ligation clamp features a safety mechanism to prevent accidental firing. The electric continuous-fire design not only reduces the shaking associated with manual clamping, resulting in a more stable and labor-saving experience, but also meets the needs of various surgeries, minimizing instrument waste. The consistent firing speed and clamping force prevent damage to the ligation clamp, reducing patient discomfort. The electric firing mechanism ensures clear firing steps, consistent firing force and speed, and a smooth and even ligation process, improving the safety and effectiveness of the surgery.

[0021] This invention uses a battery to power the motor, making it safe and reliable to use.

[0022] The safety button is installed on one side of the fixed handle. The safety button is connected to the micro switch through the safety control block. The firing button can only be pressed a second time after the safety button is opened. The motor rotates forward and drives the transmission rack to move forward through the transmission gear. The push block on the transmission rack pushes the sleeve push rod and the sleeve to move forward. The front end of the sleeve pushes the upper and lower jaws of the upper and lower clamps to close, clamping the ligation clamp inside the upper and lower jaws onto the target tissue. The safety button can prevent accidental firing and prevent overfiring. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of an electric continuous-fire ligation clamp with a safety device to prevent accidental firing.

[0024] Figure 2 This is a schematic diagram of an electric continuous-fire ligating clamp with a safety device to prevent accidental firing.

[0025] Figure 3 This is an exploded view of the structure of an electric continuous-fire ligator clamp with a safety device to prevent accidental firing.

[0026] Figure 4 yes Figure 3 Enlarged view of part A in the electric continuous-fire ligating clamp with anti-misfire safety.

[0027] In the diagram: 1. Fixed handle, 2. DC motor, 3. Motor control switch, 4. Motor control circuit board, 5. Motor transmission gear, 6. Transmission rack, 7. Push block, 8. Battery, 9. Safety button, 10. Ligation clip push rod, 11. Ligation clip push rod return spring, 12. Sleeve push rod, 13. Sleeve, 14. Sleeve return spring, 15. Rotating handle, 16. Clip seat, 17. Upper and lower clamps, 18. Clip seat cover plate, 19. Push plate 19, 20. Ligation clip, 21. Jaw opening spring, 22. Jaw positioning spring; 1-1. Upper fixed handle; 1-2. Lower fixed handle; 1-2-1. Push rod mounting slot; 1-2-2. Rack sliding slot. 3-1. Reset button; 3-2. Activation button; 10-1. Push block slot; 16-1. Ligation clip discharge slot; 19-1. Elastic pusher protrusion. Detailed Implementation

[0028] See attached document Figure 1-4 The electric continuous-fire clamp with anti-accidental firing safety includes a fixed handle 1, a DC motor 2, a motor control switch 3, a motor control circuit board 4, a motor transmission gear 5, a transmission rack 6, a push block 7, a battery 8, a safety button 9, a ligation clamp push rod 10, a ligation clamp push rod return spring 11, a sleeve push rod 12, a sleeve 13, a sleeve return spring 14, a rotating handle 15, a clamp base 16, upper and lower clamps 17, a clamp base cover plate 18, and a push plate 19.

[0029] The fixed handle 1 consists of an upper fixed handle 1-1 and a lower fixed handle 1-2. The upper fixed handle 1-1 is fixed to one side of the lower fixed handle via a positioning post and a positioning hole. The rotating handle 15 is fitted onto the front end of the fixed handle 1. The lower fixed handle 1-2 is provided with a push rod mounting groove 1-2-1 on its upper part. The sleeve push rod 12 and the ligation clip push rod 14 are installed in the push rod mounting groove 1-2-1. The front part of the ligation clip push rod return spring 11 is fitted onto the rear part of the sleeve push rod 12, and the rear end abuts against the ligation clip push rod 10. It is used for the ligation clip push rod 10 to push the ligation clip 20 and reset after clamping it on the target tissue.

[0030] The ligation clip push rod 10 has a push block slot 10-1 at its rear end, and a push block 7 is mounted on the upper part of the transmission rack 6. The push block 7 has a U-shaped groove. The push rod mounting groove 1-2-1 has a rack sliding groove 1-2-2 at its lower end. The transmission rack 6 is installed in the rack sliding groove 1-2-2. The push block 7 is engaged in the push block slot 10-1 at the rear end of the ligation clip push rod 10 through the U-shaped groove, and is used to push the ligation clip push rod 10.

[0031] The DC motor 2 and the motor control circuit board 4 are respectively installed in the middle of the lower fixed handle 1-2. The battery 8 is installed on the lower inner side of the lower fixed handle 1-2.

[0032] The safety button 9 is installed on one side of the fixed handle 1. The safety button 9 is connected to the micro switch through the safety control block 9-1. When the safety button 9 is turned on, it is connected to the motor control circuit board 4 through the micro switch and wires, so that the DC motor 2 can work. The safety button 9 can prevent accidental activation.

[0033] DC motor 2 is a miniature low-voltage DC reversible motor, controlled by motor control switch 3. It can rotate in both directions via motor transmission gear 5 driving transmission rack 6. The forward and reverse rotation of DC motor 2 can be controlled by changing the polarity of the electrodes. Therefore, only the wiring of the two electrodes needs to be controlled. To make the motor rotate forward, connect the positive terminal of the power supply to the positive terminal of the motor and the negative terminal to the negative terminal of the motor using the motor control switch. To make the motor rotate in reverse, connect the positive terminal of the power supply to the negative terminal of the motor and the negative terminal to the positive terminal of the motor using the motor control switch 3.

[0034] The output shaft of DC motor 2 is equipped with a motor drive gear 5, which meshes with the drive rack 6, and can drive the drive rack 6 to move. The drive block 7 drives the ligation clip push rod 10 and the sleeve push rod 12 to move.

[0035] The motor control circuit board 4 controls the rotation of the motor. The motor control circuit board is equipped with a PCB printed circuit board and contains a motor control chip and a micro switch.

[0036] The motor control switch 3 is mounted on the front side of the lower fixed handle 1-2. The motor control switch 3 is a push button switch with a reset button on the upper part and a firing button on the lower part. It controls the forward and reverse rotation of the DC motor 2 through micro switches, and drives the ligation clip push rod 10 and the sleeve push rod 12 through the push block 7 to achieve the firing and reset purposes.

[0037] Multiple ligation clips 20 are arranged in a clip seat 16. The front end of the clip seat 16 is equipped with upper and lower clamps 17, and the clamp jaw opening spring plates 21 and clamp jaw positioning spring plates 22 are also installed. The ligation clips 20 are arranged in a clip seat 16. The clip seat 16 is installed on the upper part of the clip seat cover plate 18. The rear part of the clip seat cover plate 18 is equipped with a sleeve push rod 12. The sleeve push rod 12 is installed in a rotating handle 15. The upper part of the clip seat 16 is equipped with a push plate 19. The rear part of the push plate 19 is fixedly connected to the ligation clip push rod 10.

[0038] The pusher 19 has multiple elastic pusher protrusions 19-1 for pushing the clamp base 16 to release the ligation clip 20. The clamp base 16 has a ligation clip release groove 16-1 for releasing the ligation clip 20. The multiple elastic pusher protrusions 19-1 on the pusher 19 are arranged in a position corresponding to the ligation clip release groove 16-1 in the clamp base 16, and the position for releasing the ligation clip 20 is corresponding, which facilitates the orderly pushing of the ligation clip into the upper and lower clamp jaws installed at the front end of the clamp base 16.

[0039] The clamp seat 16, clamp seat cover 18, and push plate 19 are inserted into the sleeve 13. The rear part of the sleeve 13 passes through the rotating handle 15 and is fixedly connected to the sleeve push rod 12. The sleeve return spring 14 is fitted on the rear part of the sleeve 13. The front end of the sleeve return spring 14 abuts against the front inner end of the rotating handle 15, and the rear end of the sleeve return spring 14 abuts against the front end of the sleeve push rod 12. It is used to push the upper and lower clamps 17 when the sleeve is fired, so that the jaws of the upper and lower clamps close and clamp the ligation clip 20 onto the target tissue before resetting.

[0040] The rotating handle 15 is fitted onto the front end of the fixed handle 1. Rotating the handle 15 drives the sleeve and the clip seat 16 inserted in the sleeve, the front end of the clip seat 16 is equipped with upper and lower clamps 17, the clip seat cover plate 18 and the push plate 19 to rotate simultaneously, so that the upper and lower clamps 17 are aligned with the ligation clip 20 and clamped onto the target tissue.

[0041] Push block 7 pushes ligation clip push rod 10, which in turn pushes ligation clip 20 within clip seat 16 into upper and lower clamps 17 via push plate 19. Simultaneously, push block 7 pushes cannula push rod 12, which closes the upper and lower jaws of upper and lower clamps 17 to clamp ligation clip 20 onto the target tissue. Push plate 19 reciprocates once after pushing each ligation clip 20. Under the action of ligation clip push rod return spring 11 and cannula return spring 14, it pushes another stroke, aligning with the distance from the ligation clip placement position within the clip seat.

[0042] When using the electric continuous-fire ligation clamp with anti-misfire safety, rotate the rotating handle 15, align the upper and lower clamps 17 with the target tissue to be clamped by the ligation clamp 20, open the safety button 9, connect the micro switch and the motor control circuit board 4 through the wire, and turn on the power to the DC motor 2. Press the lower firing button 3-2 of the motor control switch 3 for the first time, the DC motor 2 rotates forward, the motor transmission gear 5 drives the transmission rack 6 to move, and pushes the ligation clamp push rod 10 forward through the push block 7. The ligation clip push rod 10 pushes the push plate 19 to push the ligation clip 20 out of the clip seat 16 and into the jaws of the upper and lower clamps 17. Pressing the firing button 3-2 a second time causes the DC motor 2 to rotate forward, driving the transmission rack 6 forward through the transmission gear 5. The push block 7 on the transmission rack 6 pushes the sleeve push rod 12 and the sleeve 13 forward, pushing the upper and lower jaws of the upper and lower clamps 17 to close through the front end of the sleeve 3, clamping the ligation clip 20 onto the target tissue. After the first clamping is completed, pressing the reset button 3-1 on the upper part of the motor control switch 3 causes the DC motor 2 to reverse and drive the transmission rack 6 backward through the transmission gear 5. The push block 7 drives the ligation clip push rod 10 and the sleeve push rod 12 to move backward. Under the action of the ligation clip push rod reset spring 11 and the sleeve reset spring 14, the ligation clip push rod 10, the sleeve push rod 12, the push plate 19, the sleeve 13, and the upper and lower clamps 17 are reset. The above procedure can be repeated for the second application of the clip and for multiple consecutive applications of the clip.

Claims

1. An electric continuous-fire ligation clamp with a safety mechanism to prevent accidental firing, characterized in that, Includes a fixed handle, DC motor, motor control switch, motor control circuit board, motor drive gear, drive rack, push block, battery, safety button, ligation clip push rod, ligation clip push rod return spring, sleeve push rod, sleeve, sleeve return spring, rotating handle, clip base, upper and lower clamps, clip base cover plate and push plate; The fixed handle consists of an upper fixed handle and a lower fixed handle. The upper fixed handle is fixed to one side of the lower fixed handle by a positioning post and a positioning hole. The rotating handle is fitted onto the front end of the fixed handle. The lower fixed handle is provided with a push rod mounting groove on the upper part. The sleeve push rod and the ligation clip push rod are installed in the push rod mounting groove. The front part of the ligation clip return spring is fitted onto the rear part of the sleeve push rod, and the rear part abuts against the ligation clip push rod. It is used for the ligation clip push rod to push the ligation clip and reset after clamping it on the target tissue. The ligation clip push rod is provided with a push block slot at the rear, a push block is mounted on the upper part of the transmission rack, the push block is provided with a U-shaped groove, the push rod mounting groove is provided with a rack sliding groove at the lower part, the transmission rack is mounted in the rack sliding groove, and the push block is engaged in the push block slot at the rear of the ligation clip push rod through the U-shaped groove for pushing the ligation clip push rod. The DC motor and motor control circuit board are respectively installed in the middle of the lower fixed handle, and the battery is installed in the lower inner part of the lower fixed handle; The clamp seat, clamp seat cover plate and push plate are inserted into the sleeve. The rear part of the sleeve passes through the rotating handle and is fixedly connected to the sleeve push rod. The sleeve return spring is fitted into the rear part of the sleeve. The front end of the sleeve return spring abuts against the front inner end of the rotating handle, and the rear end of the sleeve return spring abuts against the front end of the sleeve push rod. It is used to fire the sleeve to push the upper and lower clamps, so that the jaws of the upper and lower clamps close and the ligation clamp is applied to the target tissue and then reset. The safety button is installed on one side of the fixed handle. The safety button is connected to the micro switch through the safety control block. When the safety button is opened, it is connected to the motor control circuit board through the micro switch and wires, so that the DC motor power supply can be turned on and the DC motor can work. The safety button can prevent accidental activation.

2. The electrically operated continuous-fire ligating clamp with anti-misfire safety as described in claim 1, characterized in that, The output shaft of the DC motor is equipped with a motor drive gear that meshes with the drive rack, which can drive the drive rack to move, and push the ligation clip push rod and sleeve push rod to move through the push block.

3. The electrically operated automatic firing clamp with anti-misfire safety as described in claim 1, characterized in that, The motor control switch is mounted on the front side of the lower fixed handle. The motor control switch is a push-button switch with a reset button on the top and a firing button on the bottom. It controls the forward and reverse rotation of the motor through microswitches, and drives the ligation clip push rod and sleeve push rod through the push block to achieve the firing and reset purposes.

4. The electrically operated automatic firing clamp with anti-misfire safety as described in claim 1, characterized in that, Multiple ligation clips are arranged inside the clip holder. The front end of the clip holder is equipped with upper and lower clamps, as well as clamp jaw opening spring plates and clamp jaw positioning spring plates. The clip holder is installed on the upper part of the clip holder cover plate. The rear part of the clip holder cover plate is equipped with a sleeve push rod, which is installed inside the rotating handle. The upper part of the clip holder is equipped with a push plate, and the rear part of the push plate is fixedly connected to the ligation clip push rod.

5. The electric continuous-fire ligating clamp with anti-misfire safety as described in claim 1, characterized in that, The pusher has multiple elastic pusher protrusions for pushing the clamp holder to release the ligation clip. The clamp holder has a ligation clip release groove for releasing the ligation clip. The multiple elastic pusher protrusions on the pusher are arranged in a position corresponding to the ligation clip release groove in the clamp holder, so that the ligation clip can be pushed into the upper and lower clamp jaws at the front end of the clamp holder in an orderly manner.

6. The electrically operated automatic firing clamp with anti-misfire safety as described in claim 1, characterized in that, The rotating handle is mounted on the front end of the fixed handle. Rotating the handle drives the sleeve, the clamp seat inserted in the sleeve, the upper and lower clamps at the front end of the clamp seat, the clamp seat cover plate and the push plate to rotate simultaneously, so that the upper and lower clamps are aligned with the target tissue for clamping.

7. The electrically operated continuous-fire ligating clamp with anti-misfire safety as described in claim 1, characterized in that, The pusher block pushes the ligation clip push rod, which in turn pushes the ligation clip inside the clip holder into the jaws of the upper and lower clamps via the pusher plate. At the same time, the pusher block pushes the sleeve push rod, which closes the jaws of the upper and lower clamps to clamp the ligation clip onto the target tissue. After each ligation clip is pushed, the pusher plate moves back and forth once. Under the action of the ligation clip push rod return spring and the sleeve return spring, it pushes another stroke, which is consistent with the distance of the ligation clip placement position inside the clip holder.

8. The electrically operated automatic firing clamp with anti-misfire safety as described in claim 1, characterized in that, The DC motor is a miniature low-voltage DC reversible motor, controlled by a motor control switch. It can rotate in both directions and drive a transmission rack and pinion back and forth through the motor transmission gear.

9. The electrically operated automatic firing clamp with anti-misfire safety as described in claim 1, characterized in that, The motor control circuit board controls the rotation of the motor. The motor control circuit board is equipped with a PCB printed circuit board and contains motor control circuits, components, and micro switches.

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