Surgical clamp

Abstract

The present invention relates to the field of medical device technology, and is suitable for clamping and fixing surgical medical devices and endoscopes, and in particular to a surgical clamp. The surgical clamp includes: a base, a serpentine arm, and a clamping manipulator. The tail of the serpentine arm is connected to the base, and the end of the serpentine arm is provided with a clamping manipulator; the base includes: a shell, a stretching mechanism, a driving device, a locking device, and a base rotation fixing device. The driving device and the stretching mechanism are arranged inside the shell; the base rotation fixing device runs through the front and rear sides of the shell, and the base rotation fixing device is used to adjust and fix the angle of the base; the locking device is arranged in the base rotation fixing device, and is used to fix the base on the operating bed. The surgical clamp provided by the present invention can be freely fixed at any position, is easy to adjust, is not subject to any external interference, and completely replaces manual support.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, and is suitable for clamping and fixing surgical medical instruments and endoscopes, and in particular to a surgical clamp. Background Art

[0002] During current surgeries, surgical instruments and endoscopes are usually supported by a dedicated assistant or with a bent arm. Manual control will increase the number of doctors performing the operation, making the limited operating area even more crowded. In addition, it is difficult for human hands to adapt to long-term large-scale surgeries, because over time, muscles will fatigue, and the limbs holding the surgical instruments or endoscopes will become sore and tired, affecting stability, making it difficult for the surgeon to see clear and stable images and the surgical area. Another problem is that the bent arm structure of most operating rooms now has a limited adjustment range, or is adjusted step by step, and cannot meet clinical application requirements in terms of flexibility and fine-tuning. Summary of the invention

[0003] In view of the above-mentioned defects of the prior art, the surgical clamp provided by the present invention has a serpentine arm that can be fixed to a specified position at any angle and bend, and the base can be fixed at multiple angles in a circle of 0-360 degrees. It is easy to adjust and is not subject to any external interference, completely replacing manual support.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] The surgical clamp comprises: a base, a serpentine arm, and a clamping manipulator. The tail of the serpentine arm is connected to the base, and the end of the serpentine arm is provided with a clamping manipulator.

[0006] The base includes: a shell, a stretching mechanism, a driving device, a locking device and a base rotation fixing device, wherein the driving device and the stretching mechanism are arranged inside the shell; the base rotation fixing device runs through the front and rear sides of the shell, and the base rotation fixing device is used to adjust and fix the angle of the base; the locking device is arranged in the base rotation fixing device, and is used to fix the base on the operating table.

[0007] The serpentine arm includes: a connecting wire and a plurality of hollow joints connected in series end to end on the connecting wire. One end of the connecting wire is connected to the top of the serpentine arm and passes through the joint, and the other end is connected to the stretching mechanism inside the base shell. The joint can be tightened or loosened under the cooperation of the driving device and the stretching mechanism.

[0008] The stretching mechanism comprises: a rotating shaft, an L-shaped steering arm, a wedge block, and a connecting wire mounting seat. The L-shaped steering arm is rotatably fixed in the base through the rotating shaft. A connecting wire mounting seat is provided at one end of the steering arm. A pulley I is provided outside the connecting wire mounting seat. A pulley II is provided on the inner wall of the base opposite to the rotating shaft. The wedge block is connected to the output end of the driving device. The wedge block can be extended between the pulley I and the pulley II under the action of the driving device.

[0009] The clamping manipulator is used for clamping surgical instruments.

[0010] Among them, the base rotation and fixing device includes: a rotating handle, a limit block, a sleeve, and a threaded barrel. A limit block is fixedly provided at one end of the sleeve, and the limit block is fixed to the base. The sleeve is fixed to the base through a mounting hole. A threaded barrel is provided in the other end of the sleeve. The rotating handle is threadedly connected to the threaded barrel, and the base is fixed or loosened by the rotating handle.

[0011] Among them, the locking device includes a screw, a handle, a threaded barrel, a mounting seat, and a clamping claw. A mounting seat is provided at one end of the threaded barrel, and a clamping claw is provided on the mounting seat. The screw is connected to the mounting seat through the threaded barrel, and a handle is provided at the end of the screw, which is controlled by rotating the handle to tighten or loosen the clamping claw.

[0012] Wherein, a limiting protrusion is provided on the contact surface between the limiting block and the mounting seat, and a limiting groove matching the limiting protrusion is provided on the mounting seat.

[0013] Wherein, the end of the serpentine arm head is provided with a limiting block which is quickly connected to the clamping manipulator.

[0014] Among them, the clamping robot includes: clamping clamp I, clamping clamp II, clamping arm, locking nut, and quick connector. The clamping clamp II and the clamping arm are an integrated structure. A protrusion is provided at the tail of the clamping clamp I. The clamping clamp I is hinged to the clamping clamp II. The locking nut cooperates with the thread on the clamping arm. The clamping clamp I is controlled to open by the protrusion during the rotation and movement of the locking nut. A quick connector is provided at the end of the clamping arm.

[0015] The outer diameters of the clamping clamp I and the clamping clamp II gradually increase as the distance from the clamping arm increases. The distance to the outer diameters of the clamping clamp I and the clamping clamp II is shortened by rotating the locking nut, so that the clamping clamp I and the clamping clamp II are closed and clamped.

[0016] Wherein, the connecting wire is a flexible metal wire.

[0017] Wherein, the driving device is pneumatic, and the switch of the driving device is a hand-controlled switch or a foot-controlled switch.

[0018] The driving device is provided with an energy source cut-off protection mechanism to ensure that the serpentine arm remains in its original fixed state after a sudden loss of gas source.

[0019] The beneficial effects of the present invention are as follows: the surgical clamp provided by the present invention can be fixed to a designated position at any angle, can have any all-round freedom, and can be fixed to a designated position at a curved position. At the same time, the base can be fixed at multiple angles in a circle of 0-360 degrees. While it is easy to adjust, it is not subject to any external interference, completely replaces manual support, and saves human resources. It effectively solves the problem of limited adjustment range of existing curved arm structures, and at the same time saves space resources for the surgical operation area that originally has limited space.

[0020] In order to further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings are only provided for reference and illustration and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The technical solutions and other beneficial effects of the present invention will be made apparent by describing in detail the specific embodiments of the present invention in conjunction with the accompanying drawings.

[0022] Figure 1 It is a schematic structural diagram of the surgical clamp of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of the base of the surgical clamp of the present invention;

[0024] Figure 3 It is another schematic diagram of the internal structure of the base of the surgical clamp of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the locking device and the base rotation fixing device of the surgical clamp of the present invention;

[0026] Figure 5 It is an exploded view of the locking device and the base rotation fixing device of the surgical clamp of the present invention;

[0027] Figure 6 It is a partial structural schematic diagram of the locking device of the surgical clamp of the present invention;

[0028] Figure 7 It is a structural schematic diagram of a clamping manipulator 1 of a surgical clamp of the present invention;

[0029] Figure 8 This is an exploded view of the clamping manipulator I of the surgical clamp of the present invention:

[0030] Fig. 9 This is a schematic structural diagram of a clamping manipulator II of a surgical clamp of the present invention;

[0031] Fig.10This is an exploded view of the clamping manipulator II of the surgical clamp of the present invention;

[0032] Fig.11 It is a schematic structural diagram of the clamping manipulator III of the surgical clamp of the present invention;

[0033] Fig.12 This is an exploded view of the clamping manipulator III of the surgical clamp of the present invention;

[0034] Fig.13 This is a schematic diagram of the structure of the clamping manipulator IV of the surgical clamp of the present invention;

[0035] Fig.14 This is an exploded view of the clamping manipulator IV of the surgical clamp of the present invention;

[0036] Fig.15 It is a pneumatic principle diagram of a pressing switch of the surgical clamp of the present invention;

[0037] Fig.16 The pneumatic principle diagram of the release switch of the surgical clamp of the present invention is shown in FIG. DETAILED DESCRIPTION

[0038] To further illustrate the technical means and effects of the present invention, the following is a detailed description in conjunction with the preferred embodiments of the present invention and the accompanying drawings.

[0039] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Embodiment 1:

[0042] like Figure 1-2As shown, the surgical clamp provided in this embodiment specifically includes: a base 3, a serpentine arm 2, and a clamping manipulator 1. The tail of the serpentine arm 2 is connected to the base 3, and the end of the serpentine arm 2 is provided with a clamping manipulator 1.

[0043] Specifically, the base includes: a shell 31, a stretching mechanism, a driving device 32, a locking device and a base rotation fixing device. The driving device 32 and the stretching mechanism are arranged inside the shell. The driving device 32 and the stretching mechanism cooperate with each other to control the serpentine arm 2 to be tightened or relaxed, so as to achieve the effect of fixing the surgical instrument at any angle to the specified position. The base 3 rotation fixing device runs through the front and back sides of the shell. The base rotation fixing device is used to adjust and fix the base angle; the locking device is arranged in the base rotation fixing device, which is used to fix the base to the operating bed. By fixing the base and the serpentine arm at any angle, the surgical instrument can be fixed to the specified position with any full range of freedom and bending.

[0044] like Figure 2 As shown, the serpentine arm 2 includes: a connecting wire 23 and a plurality of hollow joints which are connected in series end to end on the connecting wire, one end of the connecting wire 23 is connected to the top of the serpentine arm and passes through the joint, and the other end is connected to the stretching mechanism inside the base shell, and the joint can be tightened or loosened under the cooperation of the driving device 32 and the stretching mechanism, and a limit block 100 which is quickly connected to the clamping robot 1 is provided at the head end of the serpentine arm.

[0045] like Figure 1-2 As shown, the stretching mechanism includes: a rotating shaft 34, an L-shaped steering arm 33, a wedge block 35, and a connecting wire mounting seat. The L-shaped steering arm 33 is rotatably fixed in the base 3 through the rotating shaft 34. A connecting wire 23 mounting seat is provided at one end of the L-shaped steering arm 33. A pulley I36 is provided outside the connecting wire 23 mounting seat. A pulley II37 is provided on the inner wall of the base 3 opposite to the rotating shaft 34. The wedge block 35 is connected to the output end of the driving device 32. Under the action of the driving device, the wedge block 35 can extend in and out between the pulley I36 and the pulley II37.

[0046] Specifically, the driving device controls the wedge block to extend between the pulley I36 and the pulley II37, so that the pulley I36 runs along the inclined surface of the wedge block 35 until the plane at the top of the inclined surface, so that the L-shaped steering arm 33 rotates counterclockwise to tighten the connecting wire 23, so that the serpentine arm is fixed at an arbitrary position in space. At this time, since the pulley I36 is at the plane at the top of the inclined surface of the wedge block 35, the wedge block 35 is balanced between the pulley I36 and the pulley II37. Even if the driving device suddenly loses the air source, the wedge block cannot return to its original position by itself without external force. Therefore, in the case of sudden loss of air source, the connecting wire 23 is still in a tightened state, so that the serpentine arm remains fixed at an arbitrary position in space. The driving device controls the wedge block to withdraw from between the pulley I36 and the pulley II37, so that the L-shaped steering arm 33 rotates clockwise to loosen the connecting wire 23, so that the serpentine arm 2 is relaxed.

[0047] like Figure 3 As shown, further, the stretching mechanism can also be another form, specifically including: a cylinder 301, a rotating wheel 305, a stretching arm 303, a connecting wire 23, and a steel wire 309. One end of the connecting wire 23 is fixedly connected to the output end of the stretching mechanism, and the other end is connected to the serpentine arm 2. The rotating wheel 305 is fixed to the inner wall of the shell through the shaft I302, and the stretching arm 303 is fixed to the rotating wheel 305 through the shaft II304. A steel wire 309 is provided between the rotating wheel 305 and the output end 307 of the cylinder 301, and one end of the steel wire 309 is fixed to the rotating wheel 305, and the other end is fixed to the output end 307. Specifically, when the output end 307 of the cylinder 301 contracts, the steel wire 309 is pulled to rotate the roller 305 counterclockwise, and the stretching arm 303 is driven to move downward through the shaft II to tighten the serpentine arm 2.

[0048] Embodiment 2:

[0049] like Figure 4-6 As shown, in this embodiment, the base rotation fixing device includes: a rotation handle 41, a limit block 42, a sleeve 43, and a threaded cylinder 53.

[0050] Specifically, a stop block 42 is provided at one end of the sleeve 43, the stop block 42 is fixed to the base 3, the sleeve 43 is fixed to the base 3 through the mounting hole 38, a threaded barrel 53 is provided in the other end of the sleeve 43, the rotating handle 41 is threadedly connected to the threaded barrel 53, and the base is fixed or loosened by rotating the handle 41. The stop block is fixed to the base, the stop block 42 is provided with a stop protrusion, and the mounting seat 54 is provided with a stop groove matching the stop protrusion. In this embodiment, the base 3 is arranged between the stop block 42 and the rotating handle 41 through the mounting hole 38, wherein the rotating handle 41 is threadedly connected to the threaded barrel 53, and the base 3 is clamped, fixed or loosened by rotating the handle 41. Furthermore, the limit block is fixed on the base, a limit protrusion is provided on the limit block 42, and a limit groove matching the limit protrusion is provided on the mounting seat 54. Through the cooperation between the limit groove and the limit protrusion, the base 3 can be rotated to any angle and then fixed, so that the base 3 can be fixed at multiple angles of 0-360 degrees.

[0051] Embodiment three:

[0052] like Figure 4-6 As shown, the locking device of this example includes a screw 51 , a handle 52 , a threaded barrel 53 , a mounting seat 54 , and a clamping claw 55 .

[0053] Specifically, a mounting seat 54 is provided at one end of the threaded barrel, and a clamping claw 55 is provided on the mounting seat 54. The threaded barrel 53 is arranged in the sleeve 43, and the screw 51 is connected to the mounting seat 54 through the threaded barrel 53. A handle 52 is provided at the end of the screw 51, and the clamping claw 55 is controlled to be clamped or loosened by rotating the handle 52.

[0054] In this embodiment, a mounting seat 54 is provided at one end of the threaded barrel 53, a clamping jaw 55 is provided on the mounting seat 54, the threaded barrel 53 is arranged in the sleeve 43, a handle 52 is provided at the end of the screw rod 51, the other end of the screw rod 51 is connected to the mounting seat 54 through the threaded barrel 53, a limiting device 57 is fixed at one end of the threaded barrel 53 near the handle 52, the limiting device 57 limits the screw rod 51 so that the screw rod 51 will not be displaced during the rotation process, and the clamping jaw 55 is controlled to be clamped or loosened by rotating the handle 52. Specifically, the threaded rod 51 is connected to the clamping block 56 on the mounting seat 55, and the movement of the clamping block 56 drives the clamping jaw 55 to clamp or loosen, so as to achieve the clamping and removal of the clamping jaw 55 and the operating table.

[0055] Embodiment 4:

[0056] like Figure 7-8As shown, in this embodiment, the clamping manipulator I comprises: a clamping clamp I11, a clamping clamp II12, a clamping arm 13, a locking nut 14, and a quick connector. The clamping clamp II12 and the clamping arm 13 are an integral structure. The tail of the clamping clamp I11 is provided with a protrusion 15. The clamping clamp I11 is hinged with the clamping clamp II12. The locking nut 14 is threaded with the clamping arm 13. The clamping clamp I11 is controlled to open by the protrusion 15 during the rotation and movement of the locking nut 14. The outer diameters of the clamping clamp I11 and the clamping clamp II12 gradually increase as the distance from the clamping arm increases. By rotating the locking nut 14 to shorten the distance from the outer diameters of the clamping clamp I11 and the clamping clamp II12, the clamping clamp I11 and the clamping clamp II12 are closed and clamped. A quick connector is provided at the end of the clamping arm 13.

[0057] In this embodiment, the locking nut 14 is threadedly matched with the clamp arm 13, and the clamp I11 is opened by the protrusion 15 during the rotation of the locking nut 14; the outer diameters of the clamp I11 and the clamp II12 gradually increase as the distance from the clamp arm increases, and the distance to the outer diameters of the clamp I11 and the clamp II12 is shortened by rotating the locking nut 14, so that the clamp I11 and the clamp II12 are closed and clamped. In this way, the clamping of the medical device is realized, and a quick connector is provided at the end of the clamp arm 13, which can realize a quick connection with the end of the serpentine arm 2.

[0058] Furthermore, if Figure 9-10 As shown, the clamping manipulator also includes other shapes, such as the clamping manipulator II. The clamping manipulator II includes: a body I 111 and a body II 112. The body I 111 is a round tube with a thread 113 on the outer wall, and the bottom round tube of the body I 111 is a four-petal or multi-petal shape 114 with adjustable diameter. The inner wall of the body II 112 is provided with a thread matching the body I 111. The body I 111 and the body II 112 are connected by threads, and the medical mirror inserted into the body I 111 is clamped while the threads are connected.

[0059] like Figure 11-12As shown, the clamping robot also includes a clamping robot III, which includes a clamp I 121, a clamp II 122, a clamp body I 124, a clamp body II 123, and a spring 125. A spring is provided between the clamp body I 124 and the clamp body II 123. The clamp body I 124 and the clamp body II 123 are hinged to the clamp I 121 through a pin 127. A tail protrusion 130 is provided at the tail of the clamp body II 123. An external thread 126 is provided at the end of the clamp I 121, which matches the internal thread of the clamp II 122. A flange 128 is provided outward at the end of the clamp II 122, and the flange 128 matches the protrusion 129 on the clamp body I 124 and the tail protrusion 130 on the clamp body II 123. When the clamp I 121 is connected to the clamp II 122 by threads, the flange 128 on the clamp II 122 presses against the protrusion 129 on the clamp body I 124 and the tail protrusion 130 on the clamp body II 123. Under the joint action of the flange 128 and the spring 125, the clamp body I 124 and the clamp body II 123 are clamped and loosened.

[0060] like Figure 13-14 As shown, the clamping robot also includes a clamping robot IV, which includes a U-shaped clamp 131, a bolt 132, and a pressing plate 133. A threaded hole 134 is provided at one end of the U-shaped clamp 131, and the bolt 132 is threadedly connected to the threaded hole 134. The pressing plate 133 is provided at the end of the bolt 132. The distance between the pressing plate 133 and the other end of the U-shaped clamp 131 is adjusted by rotating the bolt 132 to clamp the thin sheet-like instrument.

[0061] Furthermore, the connecting wire 23 is a flexible metal wire, such as a steel wire.

[0062] Embodiment five:

[0063] In this embodiment, the driving device 32 is pneumatic, and the switch of the driving device 32 is a hand-controlled switch or a foot-controlled switch. The hand-controlled switch is arranged at the clamping manipulator 1; the foot-controlled switch is arranged on the ground and connected to the driving device 32 through a catheter, which is more convenient to use and effectively frees the doctor's hands to operate, thereby improving work efficiency.

[0064] Specifically, the driving device 32 is provided with a power cut-off protection mechanism to ensure that the serpentine arm remains in its original fixed state after a sudden loss of air supply. Fig.15 As shown, the external air source 8 is divided into two paths by the air path I81 and the air path II82. When the hand switch or the foot switch is pressed, the valve body piston 6 moves down to expose the air hole, and the air path II82 is connected to the atmosphere. At this time, the air path I81 pushes the piston 7 in the cylinder of the driving device 32 to the bottom under the action of the reversing valve 9. At this time, the output end of the driving device 32 drives the wedge block 35 to withdraw from between the pulley I36 and the pulley II37, so that the L-shaped steering arm 33 rotates clockwise to loosen the connecting wire 23, so that the serpentine arm 2 relaxes.

[0065] like Fig.16 As shown, when the hand switch or foot switch is released, the valve body piston 6 returns to its original position under the action of the air circuit II82 to block the air hole. At this time, the air circuit I81 pushes the piston 7 in the cylinder of the driving device 32 to the top under the action of the reversing valve 9. The driving device 32 controls the wedge block 35 to extend between the pulley I36 and the pulley II37, so that the pulley I36 runs along the inclined surface of the wedge block 35 until the plane at the top of the inclined surface, so that the L-shaped steering arm 33 rotates counterclockwise to tighten the connecting wire 23, so that the serpentine arm 2 is fixed at any position in space. At this time, because the pulley I36 is at the plane at the top of the inclined surface of the wedge block, the wedge block 35 is balanced between the pulley I36 and the pulley II37. Even if the driving device suddenly loses the external air source, the wedge block cannot return to its original position without external force. Therefore, in the case of sudden loss of the external air source, the connecting wire 23 is still in a tightened state, so that the serpentine arm 2 remains fixed at any position in space. Specific embodiment:

[0067] like Figure 1-16 As shown, the surgical clamp provided in this embodiment specifically includes: a base, a serpentine arm, and a clamping manipulator. The tail of the serpentine arm is connected to the base, and the end of the serpentine arm is provided with a clamping manipulator.

[0068] Specifically, the base includes: a shell, a stretching mechanism, a driving device, a locking device and a base rotation fixing device, wherein the driving device and the stretching mechanism are arranged inside the shell; the driving device and the stretching mechanism cooperate with each other to control the tension or relaxation of the serpentine arm, so as to achieve the effect of fixing the surgical instrument at any angle to the specified position. The base rotation fixing device runs through the front and back sides of the shell, and the base rotation fixing device is used to adjust and fix the base angle; the locking device is arranged in the base rotation fixing device, and is used to fix the base on the operating table; by fixing the base and the serpentine arm at any angle, the surgical instrument can be fixed to the specified position with any full range of freedom and bending.

[0069] The serpentine arm includes: a connecting wire and a plurality of hollow joints connected in series end to end on the connecting wire, one end of the connecting wire is connected to the top of the serpentine arm and passes through the joint, and the other end is connected to the stretching mechanism inside the base shell, and the joint can be tightened or loosened under the cooperation of the driving device and the stretching mechanism; a limit block is provided at the head end of the serpentine arm for quick connection with the clamping robot.

[0070] The stretching mechanism includes: a rotating shaft, an L-shaped steering arm, a wedge block, and a connecting wire mounting seat. The L-shaped steering arm is rotatably fixed in the base through the rotating shaft. A connecting wire mounting seat is provided at one end of the steering arm. A pulley I is provided outside the connecting wire mounting seat. A pulley II is provided on the inner wall opposite to the rotating shaft in the base. The wedge block is connected to the output end of the driving device. Under the action of the driving device, the wedge block can extend in and out between pulley I and pulley II.

[0071] Specifically, the driving device controls the wedge block to penetrate between pulley I and pulley II, so that pulley I runs along the inclined surface of the wedge block until it reaches the plane at the top of the inclined surface, so that the L-shaped steering arm rotates counterclockwise to tighten the connecting wire, so that the serpentine arm is fixed at any position in space. At this time, since pulley I is at the plane at the top of the inclined surface of the wedge block, the wedge block is balanced in force between pulley I and pulley II. Even if the driving device suddenly loses the air source, the wedge block cannot return to its original position by itself without external force. Therefore, in the case of sudden loss of air source, the connecting wire is still in a tightened state, so that the serpentine arm remains fixed at any position in space. The clamping manipulator is used to clamp surgical instruments. The driving device controls the wedge block to withdraw from between pulley I and pulley II, so that the L-shaped steering arm rotates clockwise to loosen the connecting wire, so that the serpentine arm is relaxed.

[0072] Specifically, the base rotation and fixing device includes: a rotating handle, a limit block, a sleeve, and a threaded barrel. A limit block is fixedly provided at one end of the sleeve, and the limit block is fixed to the base. The sleeve is fixed to the base through a mounting hole. A threaded barrel is provided in the other end of the sleeve. The rotating handle is threadedly connected to the threaded barrel, and the base is fixed or loosened by the rotating handle.

[0073] Specifically, the locking device includes a screw, a handle, a threaded barrel, a mounting seat, and a clamping claw. A mounting seat is provided at one end of the threaded barrel, a clamping claw is provided on the mounting seat, the screw is connected to the mounting seat through the threaded barrel, a handle is provided at the end of the screw, and the clamping claw is controlled to be tightened or loosened by rotation. A mounting seat is provided at one end of the threaded barrel, a clamping claw is provided on the mounting seat, the threaded barrel is arranged in a sleeve, the screw is connected to the mounting seat through the threaded barrel, a handle is provided at the end of the screw, and the clamping claw is controlled to be tightened or loosened by rotation.

[0074] Specifically, the threaded rod is connected to a clamping block on the mounting seat, and the movement of the clamping block drives the clamping jaws to clamp or loosen, thereby achieving the clamping and removal of the clamping jaws and the operating table.

[0075] Furthermore, the clamping manipulator includes: clamping forceps I, clamping forceps II, clamping arm, locking nut, and quick connector. The clamping forceps II and the clamping arm are an integrated structure. The tail of the clamping forceps I is provided with a protrusion. The clamping forceps I and the clamping forceps II are hinged. The locking nut cooperates with the thread on the clamping arm. The clamping forceps I is opened by the protrusion during the rotation and movement of the locking nut. The end of the clamping arm is provided with a quick connector. The end of the serpentine arm head is provided with a limit block that is quickly connected to the clamping manipulator. The outer diameters of the clamping forceps I and the clamping forceps II gradually increase as the distance from the clamping arm increases. By rotating the locking nut to shorten the distance to the outer diameters of the clamping forceps I and the clamping forceps II, the clamping forceps I and the clamping forceps II are closed and clamped, thereby achieving the clamping of the medical device.

[0076] Furthermore, the connecting wire is a flexible metal wire.

[0077] Specifically, the driving device is pneumatic, and the switch of the driving device is a hand-controlled switch or a foot-controlled switch. The hand-controlled switch is arranged at the clamping manipulator; the foot-controlled switch is arranged on the ground and connected to the driving device through a catheter, which is more convenient to use and effectively frees the doctor's hands to operate, thereby improving work efficiency.

[0078] The external air source is divided into two paths by air path I and air path II. When the hand switch or foot switch is pressed, the valve body piston moves down to expose the air hole and connect air path II to the atmosphere. At this time, air path I pushes the piston in the cylinder of the driving device to the bottom under the action of the reversing valve. At this time, the output end of the driving device drives the wedge block to withdraw from between pulleys I and II, so that the L-shaped steering arm rotates clockwise to loosen the connecting wire and relax the serpentine arm.

[0079] When the hand switch or foot switch is released, the valve body piston returns to its original position under the action of air circuit I to block the air hole. At this time, air circuit II pushes the piston in the cylinder of the driving device to the top under the action of the reversing valve. The driving device controls the wedge block to extend between pulleys I and II, so that pulley I runs along the inclined surface of the wedge block until it reaches the plane at the top of the inclined surface, so that the L-shaped steering arm rotates counterclockwise to tighten the connecting wire, so that the serpentine arm is fixed at any position in space. At this time, since pulley I is at the plane at the top of the inclined surface of the wedge block, the wedge block is balanced between pulleys I and pulley II. Even if the driving device suddenly loses the external air source, the wedge block cannot return to its original position without external force. Therefore, in the case of sudden loss of external air source, the connecting wire is still in a tightened state, so that the serpentine arm remains fixed at any position in space.

[0080] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A surgical clamp, characterized in that: include: A base, a serpentine arm, and a clamping manipulator, wherein the tail of the serpentine arm is connected to the base, and the end of the serpentine arm is provided with a clamping manipulator; The base comprises: a shell, a stretching mechanism, a driving device, a locking device and a base rotation fixing device, wherein the driving device and the stretching mechanism are arranged inside the shell; the base rotation fixing device runs through the front and rear sides of the shell, and the base rotation fixing device is used to adjust and fix the angle of the base; the locking device is arranged inside the base rotation fixing device, and is used to fix the base on the operating table; The serpentine arm comprises: a connecting wire and a plurality of hollow joints connected in series on the connecting wire end to end, one end of the connecting wire is connected to the top of the serpentine arm and passes through the joint, and the other end is connected to the stretching mechanism inside the base shell, and the joint can be tightened, fixed or loosened under the cooperation of the driving device and the stretching mechanism; The stretching mechanism comprises: a rotating shaft, an L-shaped steering arm, a wedge block, and a connecting wire mounting seat. The L-shaped steering arm is rotatably fixed in the base through the rotating shaft. A connecting wire mounting seat is provided at one end of the steering arm. A pulley I is provided outside the connecting wire mounting seat. A pulley II is provided on the inner wall opposite to the rotating shaft in the base. The wedge block is connected to the output end of the driving device. The wedge block can be extended between the pulley I and the pulley II under the action of the driving device. The driving device controls the wedge block to extend between the pulley I and the pulley II, so that the pulley I runs along the inclined surface of the wedge block until it reaches the plane at the top of the inclined surface, so that the L-shaped steering arm rotates counterclockwise to tighten the connecting wire, so that the serpentine arm is fixed at any position in space. The driving device controls the wedge block to withdraw from between the pulley I and the pulley II, so that the L-shaped steering arm rotates clockwise to loosen the connecting wire, so that the serpentine arm is relaxed. The clamping manipulator is used to clamp surgical instruments; the base rotating and fixing device comprises: a rotating handle, a limit block, a sleeve, and a threaded cylinder, one end of the sleeve is fixedly provided with a limit block, the limit block is fixed to the base, the sleeve is fixed to the base through the mounting hole, a threaded cylinder is provided in the other end of the sleeve, the rotating handle is threadedly connected to the threaded cylinder, and the base is fixed or loosened by rotating the handle; the locking device comprises a screw, a handle, a threaded cylinder, a mounting seat, and a clamping claw, one end of the threaded cylinder is provided with a mounting seat, the mounting seat is provided with a clamping claw, the screw is connected to the mounting seat through the threaded cylinder, the end of the screw is provided with a handle, and the clamping and loosening of the clamping claw is controlled by rotating the handle; a limit protrusion is provided on the contact surface between the limit block and the mounting seat, and a limit groove matching the limit protrusion is provided on the mounting seat; the end of the serpentine arm head is provided with a limit block that is quickly connected to the clamping manipulator.

2. The surgical clamp according to claim 1, characterized in that: The clamping robot comprises: a clamping clamp I, a clamping clamp II, a clamping arm, a locking nut, and a quick connector. The clamping clamp II and the clamping arm are an integrated structure. A protrusion is provided at the tail of the clamping clamp I. The clamping clamp I is hinged to the clamping clamp II. The locking nut cooperates with the thread on the clamping arm. The clamping clamp I is controlled to open by the protrusion during the rotation and movement of the locking nut. A quick connector is provided at the end of the clamping arm.

3. The surgical clamp according to claim 2, characterized in that: The outer diameters of the clamping clamp I and the clamping clamp II gradually increase as the distance from the clamping arm increases. By rotating the locking nut to shorten the distance to the outer diameters of the clamping clamp I and the clamping clamp II, the clamping clamp I and the clamping clamp II are closed and clamped.

4. The surgical clamp according to claim 1, characterized in that: The connecting wire is a flexible metal wire.

5. The surgical clamp according to claim 1, characterized in that: The driving device is pneumatic, and the switch of the driving device is a hand-controlled switch or a foot-controlled switch.

6. The surgical clamp according to claim 1, characterized in that: The driving device is provided with an energy source cut-off protection mechanism to ensure that the serpentine arm remains in its original fixed state after a sudden loss of gas source.

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