Surgical traction device and system

Abstract

The embodiment of the present invention discloses a surgical traction instrument and system. The surgical traction instrument includes a traction chuck, including a clamp and a first connecting part; a traction part, including a second connecting part, used to control the clamp and detachably magnetically connected to the first connecting part; a traction line, which runs through the interior of the first connecting part and the second connecting part, and one end of the traction line is connected to the clamp; a hand-held part, which is connected to the other end of the second connecting part, and is used to control the magnetism of the second connecting part so that the second connecting part and the first connecting part are connected or separated from each other, and the hand-held part is also connected to the other end of the traction line, and is used to control the clamp through the traction line to clamp the target object. The embodiment of the present invention realizes more flexible change of the traction direction when clamping the lesion tissue during surgery to facilitate the removal of the lesion tissue with unclear protrusion height, and more convenient recovery of the lesion tissue after removal.

Description

Technical Field

[0001] The embodiments of the present invention relate to medical device technology, and in particular to a surgical traction device and system. Background Art

[0002] Medical devices refer to instruments, equipment, appliances, in vitro diagnostic reagents and calibrators, materials and other similar or related items used directly or indirectly on the human body.

[0003] Endoscopic mucosal resection is a technique for separating flat raised lesions and broad-based sessile polyps from their lamina propria under endoscopy to form pseudo-pedunculated polyps, and then trapping or electrocuting the lesion tissue. This technique is a new treatment method that has emerged in recent years and is also a technology with good clinical application prospects. It allows more early digestive tract cancers to be completely removed at one time under endoscopy, eliminating the pain of open surgery and organ removal.

[0004] During the operation, instruments are needed to perform a complete removal of the lesion. However, since mucosal lesions are mostly flat and the height of the protrusion is not obvious, it is difficult for doctors to perform circumcision on them. At present, some auxiliary methods are used in the operation, such as wire traction, suspension traction, etc., to pull up the lesion and then perform electroresection. This method is more complicated to operate, takes a long time to prepare in the early stage, is not easy to change the traction direction, and is not convenient to remove the wire or suspension after the operation, which increases the difficulty and time of the operation. Summary of the invention

[0005] The embodiment of the present invention provides a surgical traction instrument and system to achieve convenient and quick removal of flat lesion tissue with inconspicuous protrusion height during surgery.

[0006] To achieve this purpose, an embodiment of the present invention provides a surgical traction instrument, which includes a traction clamp, a traction part, a traction line and a handheld part. The traction clamp includes a clamp and a first connection part; the traction part includes a second connection part, which is used to control the clamp and is detachably magnetically connected to the first connection part; one end of the traction line passes through the first connection part and the second connection part to connect the clamp; the handheld part is connected to the other end of the second connection part, which is used to control the magnetism of the second connection part so that the second connection part and the first connection part are connected or separated from each other, and the handheld part is also connected to the other end of the traction line, which is used to control the clamp through the traction line to clamp the target object.

[0007] Furthermore, the clamp includes a clip group, the first connecting part includes a first magnetic block and a limiting tube, the clip group includes a dragging part connected to the traction line and a working part for clamping the target object, the clip group is movably arranged in the limiting tube, the second connecting part includes a second magnetic block and a spring tube for accommodating the traction line, the second magnetic block is arranged at one end of the spring tube, and the other end of the spring tube is connected to the hand-held part.

[0008] Furthermore, the hand-held part includes a hand-held end and a push-pull end, the hand-held end is fixedly connected to the other end of the spring tube, the push-pull end is connected to the traction line, and the traction line is movably accommodated in the spring tube to control the clamp under the operation of the push-pull end.

[0009] Furthermore, the working part includes an upper clamp and a lower clamp partially fixed to the dragging part. When the traction line pushes the push-pull end, the upper clamp and the lower clamp will be pushed to the outside of the limiting tube and open. When the traction line pulls the push-pull end, the upper clamp and the lower clamp will be pulled into the limiting tube and closed and clamped. The push-pull end is continued to be pulled, the connection between the traction line and the clamp will be disconnected, and the second connecting part and the first connecting part are separated from each other.

[0010] Furthermore, the second connecting part also includes a conductive wire, the hand-held part includes a power supply part for controlling the magnetism of the second magnetic block, one end of the conductive wire is electrically connected to the second magnetic block, and the other end of the conductive wire is electrically connected to the power supply part.

[0011] Furthermore, the handheld part includes a first switch button, and the first switch button is used to control the working voltage of the power supply part to change the magnetic strength of the second magnetic block.

[0012] Preferably, the power supply unit includes a battery, and the battery is used to supply power to the second magnetic block.

[0013] Preferably, the power supply unit includes a power connection post, and the power connection post is used to connect to the working voltage of an external power supply.

[0014] On the other hand, an embodiment of the present invention further provides a surgical traction system, which includes a magnetic attractor and a surgical traction instrument provided by any embodiment of the present invention, wherein the magnetic attractor includes a third magnetic block and a swing arm bracket, the third magnetic block is used to attract the first connecting part after the second connecting part and the first connecting part are separated from each other, and the swing arm bracket is used to control the position of the third magnetic block relative to the first connecting part to adjust the position of the traction clamp that clamps the target object.

[0015] Preferably, the magnetic attractor further includes a second switch button, and the second switch button is used to control the working voltage of the magnetic attractor to change the magnetic strength of the third magnetic block.

[0016] The embodiment of the present invention comprises a traction chuck, a traction part, a traction line and a hand-held part. The hand-held part is connected to the other end of the second connection part, and is used to control the magnetism of the second connection part so that the second connection part and the first connection part are connected or separated from each other. The hand-held part is also connected to the other end of the traction line, and is used to control the clamp through the traction line to clamp the target object. The cumbersome operation problem of removing the traction line or suspension after pulling up the flat lesion tissue with unclear protrusion height for circumcision under endoscopy is solved, and the traction direction when clamping the lesion tissue is changed more flexibly during the operation to facilitate the removal of the lesion tissue with unclear protrusion height, and the effect of more conveniently recovering the lesion tissue after removal is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a module schematic diagram of a surgical traction device provided in Embodiment 1 of the present invention;

[0018] Figure 2 It is a structural schematic diagram of a surgical traction device provided in Embodiment 2 of the present invention;

[0019] Figure 3 This is a schematic structural diagram of a surgical traction device provided in Embodiment 2 of the present invention when the working part is opened;

[0020] Figure 4 is a top view of a structural schematic diagram of a surgical traction device provided in Embodiment 2 of the present invention;

[0021] Figure 5 It is a partial cross-sectional three-dimensional structural schematic diagram of a surgical traction device provided in Embodiment 2 of the present invention when the working part is opened;

[0022] Figure 6 This is a schematic structural diagram of a surgical traction device provided in Embodiment 2 of the present invention when the working part is closed;

[0023] Figure 7 This is a schematic structural diagram of a surgical traction instrument provided in Embodiment 2 of the present invention after the first connecting portion and the second connecting portion are separated;

[0024] Figure 8 This is a schematic diagram of the structure of a surgical traction instrument after the traction chuck and the traction part are separated, provided in the second embodiment of the present invention;

[0025] Fig. 9 It is a schematic diagram of a partial cross-sectional three-dimensional structure of a surgical traction instrument after the traction chuck and the traction part are separated, provided in the second embodiment of the present invention;

[0026] Fig.10 is a schematic diagram of the structure of the magnetic attractor provided in the third embodiment of the present invention;

[0027] Fig.11 It is a structural schematic diagram of a surgical traction system provided by Embodiment 3 of the present invention when in operation. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0029] In addition, the terms "first", "second", etc. can be used in this article to describe various directions, actions, steps or elements, etc., but these directions, actions, steps or elements are not limited by these terms. These terms are only used to distinguish a first direction, action, step or element from another direction, action, step or element. For example, without departing from the scope of the present application, the first speed difference can be referred to as the second speed difference, and similarly, the second speed difference can be referred to as the first speed difference. Both the first speed difference and the second speed difference are speed differences, but they are not the same speed difference. The terms "first", "second", etc. cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] Embodiment 1

[0031] like Figure 1 As shown, a first embodiment of the present invention provides a surgical traction instrument, which includes a traction clamp 100 , a traction part 200 , a traction line 400 and a handheld part 300 .

[0032] Among them, the traction clamp 100 includes a clamp 110 and a first connecting part 120; the traction part 200 includes a second connecting part 210, which is used to control the clamp 100 and is detachably magnetically connected to the first connecting part 120; one end of the traction line 400 passes through the first connecting part 120 and the second connecting part 210 to connect the clamp 100; the hand-held part 300 is connected to the other end of the second connecting part 210, which is used to control the magnetism of the second connecting part 210 to connect or separate the second connecting part 210 and the first connecting part 120 to each other, and the hand-held part 300 is also connected to the other end of the traction line 400, which is used to control the clamp 100 through the traction line 400 to clamp the target object.

[0033] When it is necessary to pull up a flat lesion tissue with an inconspicuous protrusion for circumcision under endoscopy during surgery, the surgical traction device provided in the first embodiment can be used. First, the traction line 400 is controlled by the handheld part 300 to control the clamp 110 to clamp the flat lesion tissue with an inconspicuous protrusion. After the clamp 110 clamps the lesion tissue, the magnetism of the second connecting part 210 is controlled by the handheld part 300 to demagnetize the second connecting part 210 and separate the second connecting part 210 from the first connecting part 120.

[0034] However, at this time, the traction line 400 is still connected to the clamp 110. Optionally, the traction line 400 is cut, and the traction chuck 100 and the traction part 200 are completely separated. The traction chuck 100 for clamping the tissue is left on the lesion tissue. The lesion tissue is pulled and clamped by the traction chuck 100. At this time, the lesion tissue can be circumcised very conveniently. After the excision is completed, the magnetism of the second connecting part 210 is controlled by the handheld part 300 to be magnetized, so that the second connecting part 210 attracts the first connecting part 120, and the traction chuck 100 clamping the excised lesion tissue is attracted back to the surgical traction instrument, and the surgical traction instrument is taken out to complete the excision of the lesion tissue.

[0035] The embodiment of the present invention uses a traction chuck 100, a traction part 200, a traction line 400 and a handheld part 300, wherein the handheld part 300 is connected to the other end of the second connection part 210 to control the magnetism of the second connection part 210 so that the second connection part 210 and the first connection part 120 are connected or separated from each other, and the handheld part 300 is also connected to the other end of the traction line 400 to control the clamp 110 through the traction line 400 to clamp the target object. The cumbersome operation problem of pulling up a flat lesion tissue with an inconspicuous protrusion height for circumcision under endoscopy and then removing the pulling line or suspension object is solved, and the effect of conveniently and quickly removing the lesion tissue with an inconspicuous protrusion height during surgery is achieved.

[0036] Embodiment 2

[0037] like Figure 2-Figure 9 As shown, the second embodiment of the present invention is a further optimization of a surgical traction instrument based on the first embodiment of the present invention. The surgical traction instrument provided in this embodiment includes a traction chuck 100 , a traction part 200 , a traction line 400 and a handheld part 300 .

[0038] Among them, refer to Figure 2 The traction clamp 100 includes a clamp 100 and a first connecting part 120; the traction part 200 includes a second connecting part 210, which is used to control the clamp 100 and is detachably magnetically connected to the first connecting part 120; one end of the traction line 400 passes through the first connecting part 120 and the second connecting part 210 to connect the clamp 100; the hand-held part 300 is connected to the other end of the second connecting part 210, which is used to control the magnetism of the second connecting part 210 to connect or separate the second connecting part 210 and the first connecting part 120, and the hand-held part 300 is also connected to the other end of the traction line 400, which is used to control the clamp 100 through the traction line 400 to clamp the target object.

[0039] Further, see Figure 3-Figure 6 The clamp 110 includes a clip group 111, the first connection part 120 includes a first magnetic block 121 and a limiting tube 122, the clip group 111 includes a dragging part 112 connected to the traction line 400 and a working part 113 for clamping the target object, the clip group 111 is movably arranged in the limiting tube 122, the second connection part 210 includes a second magnetic block 211 and a spring tube 212 for accommodating the traction line, the second magnetic block 211 is arranged at one end of the spring tube 212, and the other end of the spring tube 212 is connected to the hand-held part 300. Further, the hand-held part 300 includes a hand-held end 320 and a push-pull end 310, the hand-held end 320 is used to hold the surgical traction instrument, and the push-pull end 310 is connected to the traction line 400 to control the clamp 110 through the traction line 400.

[0040] Furthermore, the hand-held part 300 includes a hand-held end 320 and a push-pull end 310, the hand-held end 320 is fixedly connected to the other end of the spring tube 212, the push-pull end 310 is connected to the traction line 400, and the traction line 400 is movably accommodated in the spring tube 212 to control the clamp 110 under the operation of the push-pull end 310.

[0041] Furthermore, the working part 113 includes an upper clamp 114 and a lower clamp 115 which are partially fixed to the dragging part 112. When the push-pull end 310 is pushed, the upper clamp 114 and the lower clamp 115 will be pushed to the outside of the limiting tube 122 and open. When the push-pull end 310 is pulled, the upper clamp 114 and the lower clamp 115 will be pulled into the limiting tube 122 and closed and clamped. The push-pull end 310 is continued to be pulled, the connection between the traction line 400 and the clamp 110 will be disconnected, and the second connecting part 210 and the first connecting part 120 are separated from each other.

[0042] In this embodiment, the upper clamping piece 114 and the lower clamping piece 115 of the working part 113 extend out of the limiting tube 122, and the upper clamping piece 114 and the lower clamping piece 115 are fixed to the dragging part 112 and are accommodated in the limiting tube 122. The end of the traction line 400 connected to the clamp 100 is provided with a traction hammer 401, and the dragging part 112 also includes a sliding shaft 117. Figure 5 and Fig. 9 , both ends of the sliding shaft 117 are slidably fixed in the guide grooves 118 on both sides of the limiting tube 122, and the sliding shaft 117 passes through the portion of the upper clamp 114 fixed to the dragging portion 112, the wrapping portion 116 and the portion of the lower clamp 115 fixed to the dragging portion 112 in the limiting tube 122 in sequence, so as to fix the upper clamp 114, the wrapping portion 116 and the lower clamp 115 in the limiting tube 122. In this embodiment, the wrapping portion 116 includes a hammer clamp defined by two hook-shaped arms, and the traction hammer 401 is arranged in the hammer clamp defined by the wrapping portion 116. When the wrapping portion 116 is subjected to the pulling force or pushing force of the traction line 400, it can move along the guide groove 118 under the guidance of the sliding shaft 117, so that the upper clamp 114 and the lower clamp 115 extend out of the limiting tube 122 or retract into the limiting tube 122. When the traction line 400 applies a large pulling force to the wrapping portion 116, the sliding shaft 117 will be displaced in the guide groove 118. When the sliding shaft 117 moves to the end of the guide groove 118, a limit will be formed, and the wrapping portion 116 can no longer move backward. Continue to apply the pulling force, and the force point will be completely transferred to the wrapping portion 116. The two hook arms will deform and open, and the traction hammer 401 can be pulled out of the hammer clamp defined by the wrapping portion 116, so that the traction line 400 is separated from the clamp 100. The first connecting portion 120 also includes a limit column 123, which is used to guide the upper clip 114 and the lower clip 115 to separate from each other and open when they extend out of the limit tube 122, and control the opening angle of the upper clip 114 and the lower clip 115 extending out of the limit tube.

[0043] Furthermore, the second connecting part 210 also includes a conductive wire 213, and the hand-held part 300 includes a power supply part 330 for controlling the magnetism of the second magnetic block 211, one end of the conductive wire 213 is electrically connected to the second magnetic block 211, and the other end of the conductive wire 213 is electrically connected to the power supply part 330.

[0044] Furthermore, the handheld part 300 includes a first switch button 340 , and the first switch button 340 is used to control the working voltage of the power supply part 330 to change the magnetic strength of the second magnetic block 211 .

[0045] Preferably, the power supply unit 330 includes a battery, and the battery is used to supply power to the second magnetic block 211 .

[0046] Preferably, the power supply unit 330 includes a power connection post 331, and the power connection post 331 is used to connect to the working voltage of an external power source.

[0047] In this embodiment, when it is necessary to pull up the flat lesion tissue with unclear protrusion height for circumcision under endoscope during surgery, the surgical traction instrument provided in the second embodiment can be used.

[0048] Because the first connection part 120 is provided with a first magnetic block 121, and the second connection part 210 is provided with a second magnetic block 211, the first connection part 120 and the second connection part 210 are attracted by magnetic force and cannot be separated. In this embodiment, the first magnetic block 121 can be a metal material that is attractive to magnetic materials, such as iron. The second magnetic block 211 is a permanent magnet, specifically made of neodymium iron boron material. The working voltage provided by the power supply part 330 is used to generate a reverse electromagnetic field to curb the magnetism of the permanent magnet of the second magnetic block 211. The second magnetic block 211 is connected to one end of the conductive wire 213, and the other end of the conductive wire 213 is connected to the power supply part 330 on the handheld part 300. At this time, the spring tube 212 can also be used to isolate the conductive wire 213 from the outside, thereby playing a safety role. Preferably, the power supply unit 330 can use a removable and rechargeable battery to power the second magnetic block 211. Preferably, the power supply unit 330 can use a power post 331, which is connected to an external power source to power the second magnetic block 211. Alternatively, the power post 331 and the battery can be used simultaneously, and the power post 331 can charge the battery after being connected to an external power source. In this embodiment, a power post 331 is used, and a first switching button 340 is also provided on the handheld unit 300. Preferably, the first switching button 340 can slide to control the power post 331 to connect to an external power source to provide a working voltage for powering the second magnetic block 211, so as to control the magnetic force of the second magnetic block 211. When the external power source does not provide a working voltage for powering the second magnetic block 211, the magnetic force of the second magnetic block 211 is the largest. When the working voltage provided by the external power source to the second magnetic block 211 increases slowly until it reaches the maximum, the magnetic force of the second magnetic block 211 also decreases slowly until it is completely demagnetized.

[0049] In an alternative embodiment, the second magnetic block 211 is an electromagnet. When the external power supply does not provide a working voltage to the second magnetic block 211, the second magnetic block 211 has no magnetic force. When the working voltage provided by the external power supply to the second magnetic block 211 slowly increases until it reaches a maximum, the magnetic force of the second magnetic block 211 also slowly increases until it reaches a maximum magnetic force.

[0050] First, hold the handheld end 320, slide the first switch button 340 to a suitable position, connect the power pole 331 to an external power source to power the second magnetic block 211, so that the second magnetic block 211 can firmly absorb the first magnetic block 121. In one embodiment, the handheld end 320 can be two hollow rings symmetrically arranged on the handheld part 300, and the index finger and the middle finger can be inserted into the two hollow rings to hold the surgical traction instrument. Then push the push-pull end 310. In one embodiment, the push-pull end 310 is a hollow ring, and the thumb can be inserted into the hollow ring to perform the push-pull action. Because the push-pull end 310 is connected to one end of the traction line 400, and the other end of the traction line 400 is connected to the drag part 112 of the clip group 111, when the push-pull end 310 is pushed, the drag part 112 will be pushed by the traction line 400, and at this time, the working part 113 of the clip group 111 is also pushed to the outside of the limit tube 122 in the first connecting part 120, and the upper clip 114 and the lower clip 115 of the working part 113 are naturally opened without being restricted by the limit tube 122, but are restricted by the limit column 123, and the limit column 123 controls the opening angle of the upper clip 114 and the lower clip 115 extending out of the limit tube to prevent the upper clip 114 and the lower clip 115 from being too open. In one embodiment, the traction line 400 is made of metal material, so that it is not easy to bend. When the push-pull end 310 is pushed, the traction line 400 can generate enough thrust to push the clip group 111 out of the limit tube 122.

[0051] In an alternative embodiment, the clip group 111 in the initial state is located outside the limiting tube 122, and the upper clip 114 and the lower clip 115 of the working part 113 are naturally opened, without the need to operate the push-pull end 310 to make the upper clip 114 and the lower clip 115 of the working part 113 naturally open.

[0052] When the clip group 111 is pushed out of the limiting tube 122, the target object can be clamped. In this embodiment, the spring tube 212 can change its length and direction, which makes it easy for the handheld end 320 to control the clamp 110 to clamp. When it is confirmed that the target object is a flat lesion tissue with an inconspicuous protrusion height, the push-pull end 310 of the handheld part 300 is pulled. Since the push-pull end 310 is connected to one end of the traction line 400, and the other end of the traction line 400 is connected to the dragging part 112 of the clip group 111, when the push-pull end 310 is pulled, the dragging part 112 will be pulled by the traction line 400. At this time, a part of the upper clip 114 and the lower clip 115 in the working part 113 will be pulled into the limiting tube 122. As the push-pull end 310 is pulled, the upper clip 114 and the lower clip 115 will be restricted by the limiting tube 122 and slowly closed until the lesion tissue is clamped. At this time, a greater pulling force is required to continue pulling the push-pull end 310 until the clip set 111 is completely pulled into the limiting tube 122, and until the sliding shaft 117 moves to the end of the guide groove 118 to form a limit, so as to ensure that the clip set 111 can keep clamping the lesion tissue under the limit of the limiting tube 122. Due to the friction force and the tension of the clip set 111, the clip set 111 cannot naturally pop out of the tube, and forms a locking clamp on the lesion tissue to prevent the lesion tissue from falling off.

[0053] Reference Figure 7 After the clamping piece group 111 holds the lesion tissue under the restriction of the limiting tube 122, the first switching button 340 is slid to make the power supply column 331 slowly increase the supply voltage, and the second magnetic block 211 also slowly loses its magnetism until the second connecting part 210 and the first connecting part 120 are separated from each other without magnetic attraction. However, at this time, the traction line 400 is still connected to the clamp 110. Preferably, refer to Figure 8 and Fig. 9 , based on the limit formed when the sliding shaft 117 moves to the end of the guide groove 118, the push-pull end 310 is pulled with increased force until the traction hammer 401 is pulled out of the wrapping part 116, at which time the traction chuck 100 and the traction part 200 are completely separated, and the traction chuck 100 that clamps the tissue remains on the lesion tissue, and the lesion tissue is pulled and clamped by the traction chuck 100. Optionally, at this time, the traction chuck 100 is manually held by the operator to achieve traction of the traction chuck 100, which facilitates the electroresection of the lesion tissue. In an alternative embodiment, the traction of the traction chuck 100 can be achieved by attracting the first magnetic block 121 of the traction chuck 100 through a magnetic member disposed outside the body.

[0054] After the excision is completed, the first switching button 340 is slid to make the power supply column 331 slowly reduce the supply voltage, and the magnetism of the second magnetic block 211 is gradually increased. The first switching button 340 is slid to a suitable position so that the second connection part 210 has sufficient magnetic force to attract the first magnetic block 121 on the first connection part 120. After successful attraction, the first connection part 120 and the second connection part 210 are reconnected, and the traction chuck 100 and the excised lesion tissue are returned to the surgical traction instrument, and the surgical traction instrument is taken out to complete the excision of the lesion tissue.

[0055] In an alternative embodiment, when the second magnetic block 211 is an electromagnet, after the clip group 111 keeps clamping the lesion tissue under the restriction of the limit tube 122, the first switching button 340 is slid to stop the power supply of the power post 331, and the second magnetic block 211 loses its magnetism, so that the second connection part 210 and the first connection part 120 are separated from each other. After the resection is completed, the first switching button 340 is slid to make the power post 331 start to supply power, and the second magnetic block 211 has magnetism again, and the first switching button 340 is slid to a suitable position, so that the second connection part 210 has sufficient magnetic force to attract the first magnetic block 121 on the first connection part 120.

[0056] Embodiment 3

[0057] like Fig.11 As shown, the third embodiment of the present invention further provides a surgical traction system, which includes a magnetic attractor 500 and the surgical traction instrument provided in the above embodiment.

[0058] Among them, refer to Fig.10 The magnetic attractor 500 includes a third magnetic block 510 and a swing arm bracket 520. The third magnetic block 510 is used to attract the first connecting part 120 after the second connecting part and the first connecting part 120 are separated from each other. The swing arm bracket 520 is used to control the position of the third magnetic block 510 relative to the first connecting part 120 to adjust the position of the traction clamp 100 that clamps the target object.

[0059] Preferably, the magnetic attractor 500 further includes a second switch button 511 , and the second switch button 511 is used to control the working voltage of the magnetic attractor 500 to change the magnetic strength of the third magnetic block 510 .

[0060] Preferably, the third magnetic block 510 is a permanent magnet, specifically made of neodymium iron boron material. When the second switch button 511 controls the working voltage of the magnetic attractor 500 to be zero, the magnetism of the third magnetic block 510 is maximum, and when the working voltage provided by the magnetic attractor 500 to the third magnetic block 510 increases slowly until it reaches the maximum, the magnetic force of the third magnetic block 510 also decreases slowly until it is completely demagnetized.

[0061] In this embodiment, after the second connection part and the first connection part 120 are completely separated, the third magnetic block 510 in the magnetic attractor 500 can be used to attract the first magnetic block. First, the working voltage of the magnetic attractor 500 is controlled to reach the maximum through the second switch button 511. At this time, the third magnetic block 510 has no magnetism. Then, the working voltage of the magnetic attractor 500 is controlled to slowly decrease through the second switch button 511. The magnetic force of the third magnetic block 510 also slowly increases until the traction chuck 100 clamped in the diseased tissue is pulled up in a specified direction according to the position of the third magnetic block 510, and a pulling force is maintained. At this time, the swing arm bracket 520 is moved to control the position of the third magnetic block 510 as needed to control the traction direction of the third magnetic block 510, and then the diseased tissue is circumcised. During the circumcision process, since the lesion always maintains an outward force, it can ensure that the incised lesion tissue will not fall back to the mucosal surface due to gravity and hinder the doctor's further circumcision operation. It provides the doctor with a larger operating space and a better operating field of view, and reduces the operation time and alleviates the patient's pain.

[0062] In an alternative embodiment, the magnetic attractor may use a removable and rechargeable battery to power the third magnetic block. Preferably, the magnetic attractor may use a power pole to connect the power pole to an external power source to power the third magnetic block, or may use both the power pole and the battery, and the battery may be charged after the power pole is connected to an external power source.

[0063] In an alternative embodiment, the third magnetic block 510 is an electromagnet. When the working voltage of the magnetic attractor 500 is zero, the third magnetic block 510 has no magnetism. Then, the working voltage of the magnetic attractor 500 is controlled to increase slowly by the second switch button 511. The magnetic force of the third magnetic block 510 also increases slowly until the traction chuck clamped on the diseased tissue is pulled up in a specified direction according to the position of the third magnetic block 510, and a pulling force is maintained. At this time, the swing arm bracket 520 is moved to control the position of the third magnetic block 510 as needed, thereby controlling the traction direction of the third magnetic block 510, and then performing a circumcision on the diseased tissue.

[0064] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A surgical traction device, characterized in that: include: A traction chuck comprises a clamp and a first connecting portion; the first connecting portion comprises a limiting tube; A traction part, comprising a second connection part, used for controlling the clamp and detachably magnetically connected to the first connection part; A traction line, one end of which passes through the first connection part and the second connection part to connect the clamp; a hand-held part connected to the other end of the second connecting part, used to control the magnetism of the second connecting part so that the second connecting part and the first connecting part are connected to or separated from each other, and the hand-held part is also connected to the other end of the pulling line, used to control the clamp to clamp the target object through the pulling line; A traction hammer is provided at one end of the traction line connected to the clamp, and the traction hammer is arranged in a hammer clamp of the wrapping part, and the wrapping part is fixed in the limiting tube. When the wrapping part is subjected to the pulling force or pushing force of the traction line, the wrapping part can move so that the clamp can work, and the traction hammer can be pulled out of the hammer clamp of the wrapping part by the traction line so that the traction line is separated from the clamp; The clamp includes a clip group, which includes a dragging part connected to the traction line and a working part for clamping the target object. The clip group is movably arranged in the limiting tube. The dragging part also includes a sliding shaft. Both ends of the sliding shaft can be slidably fixed in the guide grooves on both sides of the limiting tube. When the wrapping part is subjected to the pulling force or pushing force of the traction line, it can move along the guide groove under the guidance of the sliding shaft.

2. A device according to claim 1, characterized in that: The first connecting part includes a first magnetic block, the second connecting part includes a second magnetic block and a spring tube for accommodating the traction line, the second magnetic block is arranged at one end of the spring tube, and the other end of the spring tube is connected to the hand-held part.

3. An apparatus according to claim 2, characterized in that: The hand-held part includes a hand-held end and a push-pull end, the hand-held end is fixedly connected to the other end of the spring tube, the push-pull end is connected to the traction line, and the traction line is movably accommodated in the spring tube to control the clamp under the operation of the push-pull end.

4. A device according to claim 3, characterized in that: The working part includes an upper clamp and a lower clamp partially fixed to the dragging part. When the traction line pushes the push-pull end, the upper clamp and the lower clamp will be pushed to the outside of the limiting tube and open. When the traction line pulls the push-pull end, the upper clamp and the lower clamp will be pulled into the limiting tube and closed and clamped. The push-pull end is continued to be pulled, the connection between the traction line and the clamp will be disconnected, and the second connecting part and the first connecting part are separated from each other.

5. A device according to claim 2, characterized in that: The second connecting part also includes a conductive wire, the handheld part includes a power supply part for controlling the magnetism of the second magnetic block, one end of the conductive wire is electrically connected to the second magnetic block, and the other end of the conductive wire is electrically connected to the power supply part.

6. A device according to claim 5, characterized in that: The handheld part includes a first switch button, and the first switch button is used to control the working voltage of the power supply part to change the magnetic strength of the second magnetic block.

7. A device according to claim 6, characterized in that: The power supply unit includes a battery, and the battery is used to supply power to the second magnetic block.

8. An apparatus according to claim 6, characterized in that: The power supply unit includes a power connection post, and the power connection post is used to connect to the working voltage of an external power supply.

9. A surgical traction system, characterized in that: include: The surgical traction instrument according to any one of claims 1 to 8; The magnetic attractor includes a third magnetic block and a swing arm bracket, wherein the third magnetic block is used to attract the first connecting part after the second connecting part and the first connecting part are separated from each other, and the swing arm bracket is used to control the position of the third magnetic block relative to the first connecting part to adjust the position of the traction clamp that clamps the target object.

10. A system according to claim 9, characterized in that: The magnetic attractor further includes a second switch button, and the second switch button is used to control the working voltage of the magnetic attractor to change the magnetic strength of the third magnetic block.

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