Pushing device for magnetically controlled forceps and magnetically controlled forceps

Abstract

The present invention provides a pushing device for magnetically controlled forceps and magnetically controlled forceps. The pushing device for magnetically controlled forceps comprises an actuating module, a sliding member, and a first magnet; the sliding member is located on the periphery of the first magnet; and the actuating module is in driving connection with the sliding member so as to drive the sliding member to move front and back. A movable jaw of a forceps head part is driven by pressing against by the sliding member, which is arranged on the periphery of the first magnet, passing through the periphery of a second magnet, and the position of pressing against is staggered with the position of a hinge shaft of the movable jaw and a fixed jaw, such that the action of driving the movable jaw is more accurate and labor-saving; additionally, there is no need to form a hole in the middle of the forceps head part, such that the firmness of the magnetic attraction fit of the forceps head part and a forceps body part can be well guaranteed without additionally providing a fixing structure, thereby greatly reducing the abnormal error rate.

Description

A pushing device for magnetic control clamps and magnetic control clamps Technical Field

[0001] The present invention relates to the field of surgical instruments, and in particular to a pushing device for magnetically controlled pliers and the magnetically controlled pliers. Background Art

[0002] With the rapid development of laparoscopic and da Vinci robotic surgery, minimally invasive techniques and aesthetic surgery have become the ultimate goals of modern surgical advancement. However, it is undeniable that any technological innovation requires the establishment of a good surgical cavity to achieve good exposure of the surgical site. Therefore, the key issue is how to increase the retraction force on the surgical site without damaging the abdominal wall to complete the surgery.

[0003] The main challenges of traditional single-incision laparoscopic surgery (SILS) and natural orifice endoscopic surgery (NOTES) are limited ergonomics, loss of triangular mechanics, and the chopstick effect, which results in loss of the operating triangle and poor exposure. The existing magnetic anchoring and guidance system technology is an adjustable traction technology that uses external handheld magnets to manipulate intra-abdominal components for cavity traction. This strategy allows a single portal (transabdominal or through a natural cavity) or a controlled number of portals as the operating path for multiple instruments, which can reduce abdominal wall punctures during laparoscopic surgery.

[0004] CN105392416B discloses a gripper with magnetically controlled positioning, in which the gripper (i.e., the pliers head part) and the conveying device (i.e., the pliers body part) are detachably assembled by magnetic attraction. After the gripper and the conveying device are magnetically fixed, the brake rod 114 of the conveying device passes through the inner cavity 212 of the cylindrical portion 210 of the gripper 200 to actuate the gripper 200; specifically, the brake rod 114 passes through the inner cavity 212 of the cylindrical portion 210 and presses against the proximal arm 220 of the first claw 202, thereby driving the first claw 202 to move. This solution has the following drawbacks: 1. The hinge axis 208 of the first jaw 202 and the second jaw 204 is substantially on the extension line of the brake rod 114, that is, the brake rod 114 and the hinge axis 208 are almost aligned. The power arm is extremely small, and the brake rod 114 abuts the proximal arm 220 and drives the first jaw 202 to rotate, requiring a large operating force from the surgeon, increasing surgical risks. Furthermore, to ensure that the grasper and the delivery device do not separate before the first jaw 202 is fully opened, a large fixing force is required. This solution uses a locking sheath 116 to assist in fixation. 2. The grasper 200 requires additional space (i.e., the inner cavity 212 of the cylindrical portion 210) for the brake rod 114 to pass through. This greatly reduces the area for magnetic fixation with the delivery device, resulting in a weak magnetic connection. For example, the locking sheath 116 is added to lock the grasper 200 in this solution, resulting in a complex and precise fitting structure within a very small space. This is not only difficult to manufacture but also prone to abnormalities, which is not allowed in surgical operations.

[0005] Summary of the Invention

[0006] Therefore, in order to improve the above-mentioned problem, the present invention provides a pushing device for a magnetic control clamp and a magnetic control clamp.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A pushing device for a magnetically controlled clamp comprises an actuating module, a sliding member and a first magnet. The sliding member is located on the periphery of the first magnet. The actuating module is driven and connected to the sliding member to drive the sliding member to move forward and backward.

[0009] Furthermore, the actuating module includes a central rod assembly and a pull rod assembly; the first magnet is assembled at the front end of the pull rod assembly so as to move back and forth driven by the pull rod assembly; the sliding member is located on the periphery of the first magnet and is connected to the central rod assembly so as to move back and forth driven by the central rod assembly.

[0010] Furthermore, the pushing device of the magnetic control clamp also includes a support tube, and the central rod assembly, the pull rod assembly and the first magnet are all inserted into the support tube.

[0011] Furthermore, the sliding member is a sliding tube, and the sliding tube is slidably sleeved on the outer wall of the supporting tube.

[0012] Furthermore, the center rod assembly and the pull rod assembly form a push-pull linkage arrangement; the pull rod assembly has a forward driving force, and the center rod assembly has a backward driving force.

[0013] Furthermore, the pull rod assembly includes a pull rod and a first compression spring. The pull rod is inserted into the first magnet and abuts against the front end of the first magnet. The first compression spring applies a forward elastic force to the first magnet.

[0014] Furthermore, the center rod assembly includes a center rod, a center rod limiting buckle and a second compression spring. The center rod and the center rod limiting buckle are fixedly connected, the center rod is connected to the sliding member, and the second compression spring applies a backward elastic force to the center rod limiting buckle and the center rod.

[0015] Furthermore, a limiting notch extending forward and backward is formed on the center rod assembly, and a pin is provided on the pull rod assembly, and the pin is passed through the limiting notch, thereby realizing the push-pull linkage setting of the center rod assembly and the pull rod assembly.

[0016] Furthermore, the pushing device of the magnetically controlled pliers further includes a movable handle, and the movable handle acts on the actuating module to drive the actuating module to move.

[0017] A magnetically controlled pliers comprises a detachable pliers head portion and a pliers body portion, the pliers head portion comprising a fixed clamp, a movable clamp and a second magnet, the movable clamp being hingedly connected to the fixed clamp and having a driving arm; the second magnet being connected to the fixed clamp; the pliers body portion being the pushing device of the magnetically controlled pliers described above; the first magnet being used to be attracted and fixed with the second magnet so as to fix the pliers head portion and the pliers body portion, the actuating module driving a sliding part to pass through the periphery of the second magnet and press against the driving arm of the movable clamp to drive the movable clamp to move.

[0018] Furthermore, the second magnet is a solid permanent magnet, and the second magnet is embedded in the rear end of the fixing clip; the first magnet is a permanent magnet, and the first magnet and the second magnet are attracted and fixed by opposite magnetic poles.

[0019] The technical solution provided by the present invention has the following beneficial effects:

[0020] 1. The movable clamp of the pliers head part is driven by a sliding part arranged on the periphery of the first magnet through the periphery of the second magnet, which is staggered with the hinge axis position of the fixed clamp and the movable clamp. The power arm is much larger than the existing solution, and the driving action of the movable clamp is more precise and labor-saving; at the same time, there is no need to open a hole in the middle position of the pliers head part, which can well ensure the firmness of the magnetic fit between the pliers head part and the pliers body part, and does not require an additional fixing structure. The structure is simple and easy to process, which greatly reduces the abnormal error rate and improves the safety of the operation.

[0021] 2. The center rod assembly and the pull rod assembly form a push-pull linkage arrangement; the pull rod assembly has a forward driving force, and the center rod assembly has a backward driving force. Under the interaction of the forward driving force of the pull rod assembly, the backward driving force of the center rod assembly, and the magnetic attraction of the first magnet, the device can maintain balance and a stable state. When an external force is applied, the original balanced state is disrupted and quickly switched to another state. This makes driving more labor-saving, and through the cooperation of the movable handle, one-handed rapid switching of actions such as the forceps head part and the pushing device being attracted, the forceps head part clamping the tissue, and the forceps head part and the pushing device being separated can be achieved, making the operation simpler, more precise, and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG1 is a schematic diagram showing the appearance of a pushing device of a magnetic control clamp in an embodiment;

[0023] FIG2 is a schematic diagram showing the exploded structure of the pushing device of the magnetic control clamp in the embodiment;

[0024] FIG3 is a schematic structural diagram of the clamp head and clamp body of the magnetic control clamp in the embodiment in a separated state;

[0025] FIG4 is a schematic structural diagram of the clamp head and clamp body of the magnetic control clamp in the embodiment in an assembled state;

[0026] FIG5 is a cross-sectional view of the clamp head and clamp body of the magnetic control clamp in the embodiment in an assembled state;

[0027] FIG6 is an enlarged schematic diagram of area A in FIG5 ;

[0028] FIG7 is a partial cross-sectional view showing the structure of the magnetron pliers in the embodiment when the pliers head is driven to open. DETAILED DESCRIPTION

[0029] To further illustrate various embodiments, the present invention is provided with accompanying drawings. These drawings form part of the present disclosure and are primarily used to illustrate the embodiments and, in conjunction with the relevant description in the specification, to explain the operating principles of the embodiments. By referring to these drawings, one of ordinary skill in the art will understand other possible embodiments and the advantages of the present invention. The components in the figures are not drawn to scale, and similar reference numerals are generally used to represent similar components.

[0030] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0031] Example 1

[0032] 1 and 2 , the present embodiment provides a pushing device for a magnetic control clamp, i.e., the clamp body portion 100 of the magnetic control clamp, comprising an actuating module, a sliding member 12, and a first magnet 11. The actuating module comprises a center rod assembly 14 and a pull rod assembly 13. The first magnet 11 is assembled at the front end of the pull rod assembly 13. That is, the first magnet 11 is driven to move forward and backward by the pull rod assembly 13. The sliding member 12 is located on the periphery of the first magnet 11 and is connected to the center rod assembly 14 so as to move forward and backward driven by the center rod assembly 14.

[0033] Specifically, the sliding member 12 is located outside the first magnet 11 , which means that the sliding member 12 is located outside the first magnet 11 on a vertical projection plane perpendicular to the front-back direction (ie, equivalent to a radial plane of the support tube 15 described below).

[0034] Continuing with reference to Figures 3 to 7 , this embodiment further provides a magnetically controlled pliers comprising a detachable pliers head portion 200 and a pliers body portion 100. The pliers head portion 200 includes a fixed clamp 21, a movable clamp 22, and a second magnet 24. The movable clamp 22 is hingedly connected to the fixed clamp 21 and has a driving arm 221. Specifically, the movable clamp 22 is hingedly connected to the fixed clamp 21 via a hinge shaft 23. The driving arm 221 of the movable clamp 22 has an arc-shaped structure. In the closed state as shown in Figures 5 and 6 , the driving arm 221 extends from one side around the hinge shaft 23 and bends to the other side. The second magnet 24 is connected to the fixed clamp 21.

[0035] The clamp body part 100 is the pushing device of the magnetic control clamp described above; the forward or backward movement of the pull rod assembly 13 causes the first magnet 11 to attract or disengage from the second magnet 24 of the clamp head part 200; that is, when the pull rod assembly 13 moves forward, it drives the first magnet 11 forward together to attract the second magnet 24 of the clamp head part 200, so that the clamp head part 200 and the clamp body part 100 are fixed by the magnetic attraction of the first magnet 11 and the second magnet 24; when the pull rod assembly 13 moves backward, it drives the first magnet 11 backward together, and the first magnet 11 moves away from the second magnet 24 and disengages, thereby realizing the disengagement of the clamp head part 200 and the clamp body part 100.

[0036] The forward movement of the central rod assembly 14 drives the sliding member 12 to pass through the periphery of the second magnet 24 and abut against the driving arm 221 of the movable clamp 22, thereby driving the movable clamp 22 to operate. That is, after the clamp head portion 200 and the clamp body portion 100 are fixed by the magnetic attraction of the first magnet 11 and the second magnet 24, the central rod assembly 14 then drives the sliding member 12 to pass through the periphery of the second magnet 24 and abut against the driving arm 221 of the movable clamp 22, thereby driving the movable clamp 22 to operate. In this specific embodiment, the fixed clamp 21 and the movable clamp 22 are opened.

[0037] By adopting the above-mentioned scheme, the movable clamp 22 of the clamp head part 200 is driven by the sliding member 12 arranged on the periphery of the first magnet 11, which is staggered from the position of the hinge shaft 23 of the fixed clamp 21 and the movable clamp 22. As shown in Figures 6 and 7, the hinge shaft 23 of the fixed clamp 21 and the movable clamp 22 is in the same straight line as the center position of the first magnet 11, and the sliding member 12 is arranged on the periphery of the first magnet 11. Therefore, the position where the sliding member 12 pushes against the driving arm 221 is staggered from the position of the hinge shaft 23, and the power arm is much larger than the existing scheme; this makes the driving action of the movable clamp 22 more precise and labor-saving, and the action response of the movable clamp 22 is more timely.

[0038] At the same time, there is no need to open a hole in the middle of the clamp head part 200 (that is, the second magnet 24 can adopt a solid structure), which can well ensure the firmness of the magnetic fit between the clamp head part 200 and the clamp body part 100. There is no need to add an additional fixing structure. The structure is simple and easy to process, which greatly reduces the abnormal error rate and improves the safety of the operation.

[0039] Specifically, the pushing device of the magnetic control clamp (the clamp body part 100) also includes a support tube 15, and the center rod assembly 14, the pull rod assembly 13 and the first magnet 11 are all passed through the support tube 15 to better realize assembly and protect the actuating module, preventing the center rod assembly 14, the pull rod assembly 13 and the first magnet 11 from being exposed and easily damaged by accident or affected by external structures.

[0040] As a preferred embodiment, in this embodiment, the sliding member 12 is a sliding tube 121 that is slidably mounted on the outer wall of the support tube 15. The tubular structure of the sliding tube 121 provides excellent guidance and prevents misalignment by forming a sleeve with the support tube 15, while also ensuring more effective contact with the driving arm 221 of the movable clamp 22. Of course, in other embodiments, the sliding member 12 may also be a curved, sheet-like structure.

[0041] The support tube 15 is provided with a waist hole 151 extending forward and backward, and the center rod assembly 14 and the sliding member 12 are connected by a latch member 18 passing through the waist hole 151, thereby realizing the connection between the center rod assembly 14 and the sliding member 12.

[0042] Specifically, the second magnet 24 is a solid permanent magnet, and the second magnet 24 is embedded in the rear end of the fixing clamp 21; the first magnet 11 is a permanent magnet, and the first magnet 11 and the second magnet 24 are fixed by opposite magnetic poles. The magnetic fixation by two permanent magnets is more secure; and has a good self-positioning effect, which can ensure the connection accuracy of the clamp head part 200 and the clamp body part 100. Of course, in other embodiments, one of the first magnet 11 and the second magnet 24 can be a permanent magnet with magnetism and the other can be a non-magnetic magnet; the two can also be fixed by magnetic attraction. However, it may be necessary to add a positioning structure to ensure the connection accuracy of the clamp head part 200 and the clamp body part 100.

[0043] As one of the preferred solutions, in this embodiment, the center rod assembly 14 and the pull rod assembly 13 form a push-pull linkage arrangement; the driving force of the center rod assembly 14 is greater than the driving force of the pull rod assembly 13, and is less than the sum of the driving force of the pull rod assembly 13 and the attraction force of the first magnet 11 when fully attracted; the pull rod assembly 13 has a forward driving force, and the center rod assembly 14 has a backward driving force. Under the interaction of the forward driving force of the pull rod assembly 13, the backward driving force of the center rod assembly 14, and the magnetic attraction force of the first magnet 11, it is possible to maintain balance and a stable state, and when an external force is applied, the original equilibrium state is destroyed and quickly switched to another equilibrium state, making the drive more labor-saving and the operation more precise and efficient.

[0044] Specifically, the pull rod assembly 13 includes a pull rod 131 and a first compression spring 132. The pull rod 131 is disposed within the first magnet 11 and abuts against the front end of the first magnet 11. The first compression spring 132 applies a forward elastic force to the first magnet 11. This provides the pull rod assembly 13 with a forward driving force. When the pliers head 200 is assembled, an external force applies a forward thrust that is greater than the backward thrust. The first compression spring 132 pushes the first magnet 11 forward rapidly for magnetic attraction and fixation. The structure is simple and easy to implement.

[0045] The center rod assembly 14 includes a center rod 141, a center rod limit buckle 143 and a second compression spring 142. The center rod 141 and the center rod limit buckle 143 are fixedly connected. The center rod 141 is connected to the sliding member 12. The second compression spring 142 applies a backward elastic force to the center rod limit buckle 143 and the center rod 141, thereby giving the center rod assembly 14 a backward driving force.

[0046] Specifically, the central rod assembly 14 and the pull rod assembly 13 achieve a push-pull linkage arrangement as follows: a front-to-rear extending limit notch 144 is formed on the central rod assembly 14 (specifically, the central rod limit buckle 143), and a pin 133 is provided on the pull rod assembly 13 (specifically, the pull rod 131), and the pin 133 is inserted into the limit notch 144. The range of motion of the pin 133 within the limit notch 144 corresponds to the range of independent movement of the central rod assembly 14 or the pull rod assembly 13; when the pin 133 abuts the limit notch 144, the continued movement of either will drive the synchronous movement of the other, thereby achieving a push-pull linkage arrangement of the central rod assembly 14 and the pull rod assembly 13; the structure is simple and easy to implement.

[0047] The above-mentioned specific structure of the central rod assembly 14 and the pull rod assembly 13 and the push-pull linkage setting method are one of the more preferred implementation methods in this solution; of course, other embodiments are not limited to this.

[0048] The magnetically controlled pliers' pushing mechanism also includes a movable handle 16, which corresponds to the actuation module and drives the center rod assembly 14 and / or the pull rod assembly 13 forward. Specifically, in this embodiment, there is only one movable handle 16, corresponding to the center rod assembly 14. By driving the center rod assembly 14, the movable handle 16 synchronously controls the movement of the pull rod assembly 13, simplifying the structure.

[0049] Furthermore, the pushing device of the magnetically controlled pliers also includes a handheld portion 17, which is mounted on the rear end of the support tube 15. The movable handle 16 is hingedly connected to the handheld portion 17. The handheld portion 17 is provided with a retaining slot 171 extending forward and backward. The pin 133 of the pull rod assembly 13 passes through the retaining notch 144 and then through the retaining slot 171, and is exposed on the outer surface of the handheld portion 17. This arrangement facilitates the retraction operation of the pull rod assembly 13; that is, when it is necessary to disengage the pliers head portion 200, the exposed pin 133 can be pulled backward, thereby driving the pull rod assembly 13 and the first magnet 11 to move backward.

[0050] Furthermore, the center rod 141 is a hollow rod structure, and the pull rod 131 is inserted into the center rod 141 , which has a compact structure and does not interfere with the second compression spring 142 .

[0051] The action flow of the magnetic clamp is as follows:

[0052] 1. In the initial state, the pliers head portion 200 and the pliers body portion 100 are in a separated state, as shown in FIG3 . The first magnet 11 is not attracted, so there is no attraction force. The rearward driving force of the center rod assembly 14 (the elastic force of the second compression spring 142) is greater than the forward driving force of the pull rod assembly 13 (the elastic force of the first compression spring 132). The center rod assembly 14, the pull rod assembly 13 and the first magnet 11 are in a rearward position and are maintained.

[0053] 2. When the pliers head part 200 needs to be assembled, align the pliers body part 100 with the pliers head part 200. Since the first magnet 11 and the second magnet 24 have an initial magnetic attraction, when the pliers body part 100 is close to the pliers head part 200, the pliers head part 200 can be quickly combined with the pliers body part 100. However, at this time, the attraction force is weak and the two are easy to separate.

[0054] At this time, external force presses on the movable handle 16 to push the center rod assembly 14 or the pull rod assembly 13. Under the action of the external force, the center rod assembly 14 overcomes its own backward driving force and moves forward. At this time, the pull rod assembly 13 drives the first magnet 11 forward under its own forward driving force. The first magnet 11 approaches the second magnet 24 of the pliers head portion 200 and is quickly attracted and fixed; the first magnet 11 and the second magnet 24 are completely attracted. At this time, the sum of the forward driving force of the pull rod assembly 13 and the attraction force of the first magnet 11 and the second magnet 24 is greater than the backward driving force of the center rod assembly 14. The pliers head portion 200 and the pliers body portion 100 remain in an assembled state, as shown in Figures 4 to 6. The second magnet 24 has reached the front end, and continuing to drive the center rod assembly 14 forward will not affect the pull rod assembly 13. At this time, pressing the movable handle 16 again will continue to drive the center rod assembly 14 and the slider 12 forward, so that the slider 12 abuts against the driving arm 221 of the movable clamp 22, driving the movable clamp 22 to open, as shown in Figure 7. After the external force is removed, the center rod assembly 14 moves backward under the action of its own backward driving force until it contacts the pull rod assembly 13 again.

[0055] 3. When the pliers head part 200 and the pliers body part 100 need to be separated, a backward external force is applied to the pull rod assembly 13, that is, the exposed pin shaft 133 is pulled backward, so that the pull rod assembly 13 and the first magnet 11 move backward, the first magnet 11 moves away from the second magnet 24, and the attraction force between the first magnet 11 and the second magnet 24 is reduced. When the forward driving force (the sum of the driving force of the pull rod assembly and the attraction force of the first magnet) is less than the backward driving force (the backward driving force of the center rod assembly 14), under the action of the backward driving force of the center rod assembly 14, the center rod assembly 14, the pull rod assembly 13 and the first magnet 11 move backward until they reach the initial state; at this time, the pliers head part 200 and the pliers body part 100 are separated.

[0056] The magnetic control clamp provided in this solution can be operated with one hand throughout the entire process.

[0057] Example 2

[0058] The pushing device of a magnetically controlled clamp provided in this embodiment is substantially the same as the structure provided in the first embodiment, except that: in this embodiment, the center rod assembly 14 and the pull rod assembly 13 are completely independent structures, that is, no push-pull linkage is formed. At the same time, the driving ends of the center rod assembly 14 and the pull rod assembly 13 are also independent of each other. For example, in this specific embodiment, two handles (not shown) are used to form a linkage with the center rod assembly 14 and the pull rod assembly 13, that is, one handle forms a linkage with the center rod assembly 14, and the other handle forms a linkage with the pull rod assembly 13. By controlling different handles, the movements of the first magnet 11 and the sliding member 12 are controlled respectively. Of course, the handles can also be replaced by other driving components.

[0059] Example 3

[0060] The present embodiment provides a pushing device for a magnetically controlled clamp, which has a structure substantially similar to that provided in the first embodiment, except that: in the present embodiment, the actuating module only includes a central rod assembly 14, and the connection relationship between the central rod assembly 14 and the sliding member 12 is the same as that in the first embodiment. At the same time, the central rod assembly 14 also forms a linkage with the first magnet 11, and the linkage is as follows: the first magnet 11 is at the front end in the initial state, and when the central rod assembly 14 moves forward, it does not push the first magnet 11, and when the central rod assembly 14 moves backward, the central rod assembly 14 can drive the first magnet 11 to move backward. It can be understood that: when the central rod assembly 14 moves forward, although it does not push the first magnet 11, it can form a limit with the first magnet 11, and when the central rod assembly 14 moves backward, it drives the first magnet 11 to move backward synchronously through the limit, and then the limit is released, and the first magnet 11 returns to the front end of the initial state.

[0061] The above-mentioned manner can be implemented in a variety of ways, such as providing a controllable latching limit structure on the center rod assembly 14. When the center rod assembly 14 moves forward, the latching limit structure is controlled to latch on the first magnet 11, thereby achieving limitation with the first magnet 11. After the first magnet 11 is pulled back a certain distance, the latching limit structure is controlled to release the latching, thereby resetting the first magnet 11.

[0062] This embodiment provides a magnetic control pliers, in which the clamp body portion 100 adopts the pushing device of the above-mentioned magnetic control pliers. When the clamp body portion 100 is close to the clamp head portion 200, the first magnet 11 and the second magnet 24 are directly attracted and fixed. When separation is required, the center rod assembly 14 is pulled backward, thereby driving the first magnet 11 to move backward and away from the second magnet 24, and the clamp body portion 100 and the clamp head portion 200 are separated.

[0063] Although the present invention has been particularly shown and described in conjunction with preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made to the present invention without departing from the spirit and scope of the invention as defined in the appended claims, and all such changes are within the scope of protection of the present invention.

Claims

1. A pushing device for a magnetically controlled clamp, characterized in that: The invention comprises an actuating module, a sliding member and a first magnet. The sliding member is located at the periphery of the first magnet. The actuating module is driven and connected to the sliding member to drive the sliding member to move forward and backward.

2. The pushing device of the magnetic control clamp according to claim 1 is characterized in that: The actuating module includes a central rod assembly and a pull rod assembly; the first magnet is assembled at the front end of the pull rod assembly so as to move forward and backward driven by the pull rod assembly; the sliding member is located at the periphery of the first magnet and is connected to the central rod assembly so as to move forward and backward driven by the central rod assembly.

3. The pushing device of the magnetic control clamp according to claim 2 is characterized in that: The pushing device of the magnetically controlled pliers also includes a supporting tube, and the central rod assembly, the pulling rod assembly and the first magnet are all inserted into the supporting tube.

4. The pushing device of the magnetic control clamp according to claim 3 is characterized in that: The sliding member is a sliding tube, and the sliding tube is slidably sleeved on the outer wall of the supporting tube.

5. The pushing device of the magnetic control clamp according to claim 2, characterized in that: The center rod assembly and the pull rod assembly form a push-pull linkage arrangement; the pull rod assembly has a forward driving force, and the center rod assembly has a backward driving force. The driving force of the center rod assembly is greater than the driving force of the pull rod assembly, and is less than the sum of the driving force of the pull rod assembly and the attraction force of the first magnet when it is fully attracted.

6. The pushing device of the magnetic control clamp according to claim 5, characterized in that: The pull rod assembly includes a pull rod and a first compression spring. The pull rod is inserted into the first magnet and abuts against the front end of the first magnet. The first compression spring applies a forward elastic force to the first magnet.

7. The pushing device of the magnetic control clamp according to claim 5, characterized in that: The center rod assembly includes a center rod, a center rod limit buckle and a second compression spring. The center rod and the center rod limit buckle are fixedly connected, the center rod is connected to a sliding member, and the second compression spring applies a backward elastic force to the center rod limit buckle and the center rod.

8. The pushing device of the magnetic control clamp according to claim 5, characterized in that: The center rod assembly is formed with a limiting notch extending forward and backward, and the pull rod assembly is provided with a pin shaft, which is passed through the limiting notch through the pin shaft, thereby realizing the push-pull linkage setting of the center rod assembly and the pull rod assembly.

9. The pushing device of the magnetic control clamp according to claim 1, 2 or 5, characterized in that: The pushing device of the magnetically controlled pliers further comprises a movable handle, and the movable handle acts on the actuating module to drive the actuating module to move.

10. A magnetically controlled pliers, comprising a detachable pliers head portion and a pliers body portion, characterized in that: The pliers head part includes a fixed clamp, a movable clamp and a second magnet, the movable clamp is hingedly arranged with the fixed clamp and has a driving arm; the second magnet is connected to the fixed clamp; the pliers body part is a pushing device of the magnetically controlled pliers as described in any one of claims 1 to 9; the first magnet is used to be attracted and fixed with the second magnet to fix the pliers head part and the pliers body part, and the actuating module drives the sliding part to pass through the periphery of the second magnet and press against the driving arm of the movable clamp to drive the movable clamp to move.

11. The magnetic control clamp according to claim 10, characterized in that: The second magnet is a solid permanent magnet, and the second magnet is embedded in the rear end of the fixing clip; the first magnet is a permanent magnet, and the first magnet and the second magnet are attracted and fixed by opposite magnetic poles.

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