Multifunctional instrument for endoscopic surgery

Abstract

The invention relates to the technical field of surgical instruments, and particularly discloses a multifunctional instrument for endoscopic surgery, which comprises scissors, a rotating rod, a mounting tube, an extension tube, a movable grip and a fixed grip, the scissors are installed at the end of the rotating rod, and the end face of the rotating rod is connected with an overturning plate. The side face, close to the overturning plate, of the installing pipe is provided with an installing opening for the overturning plate to rotate, and a rotating shaft is connected to the inner wall of the installing opening and penetrates through the overturning plate. A notch allowing the end part of the rotating rod to enter is formed in the peripheral surface of the end part, close to the rotating rod, of the mounting pipe; one end of the extension pipe is connected to the end, away from the rotating rod, of the mounting pipe, the other end of the extension pipe is mounted on the fixed grip, and one end of the movable grip is rotationally connected into the fixed grip through a positioning pin; a turnover mechanism for driving the rotating rod to rotate around the rotating shaft is mounted on the fixed grip; a driving mechanism is installed in the extension pipe, and the movable grip drives the scissors to be opened and closed through the driving mechanism. The surgical scissors have the effect of improving the operation convenience of the surgical scissors.

Description

Technical Field

[0001] The present invention relates to the technical field of surgical instruments, and in particular to a multifunctional instrument for laparoscopic surgery. Background Art

[0002] Laparoscopic surgery is a minimally invasive surgical technique that uses special tools and equipment such as laparoscopes to perform surgical operations in the patient's abdomen or pelvis through small incisions. In laparoscopic surgery, many surgical instruments are often used, and surgical scissors are one of them. Laparoscopic surgical scissors are a type of slender scissors designed to cut, remove tissue or suture during laparoscopic surgery.

[0003] In the related art, in laparoscopic surgery, three small incisions are first made in the patient's abdominal cavity, and a perforator is inserted. An endoscope is inserted into the middle perforator and a carbon dioxide trachea is additionally inserted. The carbon dioxide trachea is used to fill the abdominal cavity with carbon dioxide to make the abdominal cavity bulge; the remaining two perforators are respectively inserted with the required surgical instruments. When cutting the lesion, since the lesion is connected to other tissues, surgical scissors are required to cut one by one, but the connection between the lesion and other tissues is often different, and the doctor needs to operate the surgical scissors to constantly adjust the position for cutting, especially the connection on the back of the lesion, which requires the doctor to operate the surgical scissors to tilt at a larger angle, which makes the surgical scissors constantly press the perforator. The perforator presses the patient's small incision, which is easy to cause further tearing of the small incision. Therefore, the doctor cannot operate the surgical scissors to tilt the surgical scissors at a large angle, which requires the doctor to constantly move the lesion through another surgical instrument, so that more of the connection between the lesion and the rest of the tissue is exposed, and the operation is more troublesome. Summary of the invention

[0004] In order to improve the convenience of operating surgical scissors, the present application provides a multifunctional instrument for laparoscopic surgery.

[0005] The present application provides a multifunctional instrument for laparoscopic surgery using the following technical solution: A multifunctional instrument for laparoscopic surgery, comprising scissors, a rotating rod, a mounting tube, an extension tube, a movable grip and a fixed grip; the scissors are mounted on the end of the rotating rod, the end face of the rotating rod is connected with a flip plate, and the flip plate is located on the side of the rotating rod; the side of the mounting tube close to the flip plate is provided with a mounting opening for the flip plate to rotate, the inner wall of the mounting opening is connected with a rotating shaft, the rotating shaft passes through the flip plate, and the flip plate rotates around the rotating shaft; the circumferential surface of the end of the mounting tube close to the rotating rod is provided with a notch for the end of the rotating rod to enter, and the notch is connected to the mounting opening; one end of the extension tube is connected to the end of the mounting tube away from the rotating rod, and the other end of the extension tube is mounted on the fixed grip, and one end of the movable grip is rotatably connected to the fixed grip through a positioning pin; a flip mechanism for driving the rotating rod to rotate around the rotating shaft is installed on the fixed grip; a driving mechanism is installed in the extension tube, and the movable grip drives the scissors to open and close through the driving mechanism.

[0006] Optionally, a first groove communicating with the mounting opening is provided on a circumferential surface of the mounting tube, and a second groove communicating with the first groove is provided on a circumferential surface of the extension tube; the flip mechanism comprises a rotating disk, a transmission rope, a sleeve and a connecting plate, the sleeve being embedded in the first groove and the second groove, the transmission rope being arranged in the sleeve, and both ends of the transmission rope extending out of the end of the sleeve close to the rotating rod; one side of the connecting plate is connected to the circumferential surface of the flip plate, and a clearance opening is provided on the inner wall of the mounting opening for the connecting plate to rotate around the rotating axis, and the clearance opening is connected to the notch; one end of the transmission rope is connected to the side edge of the rotating rod close to the end face of the mounting tube, and the other end of the transmission rope is connected to the connecting plate; the rotating disk is rotatably connected to the side face of the fixed handle, the transmission rope is sleeved on the circumferential surface of the rotating disk, a plurality of balls are connected to the part of the transmission rope close to the rotating disk, the plurality of balls are evenly distributed, and a groove for the balls to enter is provided on the circumferential surface of the rotating disk.

[0007] Optionally, the side of the fixed handle is rotatably connected to two guide wheels arranged upper and lower, the part of the transmission rope above the rotating disk is overlapped with the top of the guide wheel located above, and the part of the transmission rope below the rotating disk is overlapped with the top of the guide wheel located below; the circumferential surface of the guide wheel is provided with an annular groove for the transmission rope to slide, and the annular groove and the groove are in the same plane.

[0008] Optionally, a plug-in slot is provided on the side of the fixed handle close to the rotating disk, an insert block is inserted into the inner wall of the plug-in slot, the insert block is connected with a rotating shaft on the side close to the rotating disk, the rotating shaft passes through the rotating disk, the circumferential surface of the rotating shaft is rotatably connected to a rotating seat, and the rotating seat is coaxially connected to the rotating disk; a rotating plate is connected to the circumferential surface of the rotating seat, a pressing plate for fingers to press is connected to the side of the end of the rotating plate away from the rotating seat, and a finger groove for movement of the pressing plate is provided on the side of the fixed handle.

[0009] Optionally, the rotating rod includes a first side plate and a second side plate, the flip plate is connected to the first side plate close to the end face of the mounting tube, and the end faces of the first side plate and the second side plate are affixed to the end face of the mounting tube; the scissors include a first blade, a second blade and a pin; the two ends of the pin are respectively fixedly connected to the sides of the first side plate and the second side plate close to each other; the first blade and the second blade are arranged between the first side plate and the second side plate, and the ends of the first blade and the second blade are both rotatably connected to the pin; the driving mechanism is used to drive the first blade and the second blade to rotate around the pin.

[0010] Optionally, a first push plate is connected to the end surface of the first blade close to the mounting tube, and a second push plate is connected to the end surface of the second blade close to the mounting tube; the first push plate and the second push plate are cross-arranged; a push rod is passed through the first push plate and the second push plate, and a sliding groove for the push rod to slide is provided in the first push plate and the second push plate, and the sliding groove is connected to the end surfaces of the first push plate and the second push plate; sliding grooves for sliding at both ends of the push rod are provided on the side surfaces of the first side plate and the second side plate close to each other; and the driving mechanism drives the push rod to slide in the sliding groove.

[0011] Optionally, the driving mechanism includes a first tube body, a first sliding rod, a second tube body, a second sliding rod, a flexible tube and a driving assembly; the first tube body is installed on the end surface of the rotating rod, the first tube body is closed at both ends, the first sliding rod is arranged in the first tube body, and the end of the first sliding rod close to the push rod extends out of the end of the first tube body and is connected to the push rod; the end of the first sliding rod away from the push rod is connected to a first piston, and the first piston is slidably sealed in the first tube body; the peripheral surface of the mounting tube is provided with an opening for the first tube body to rotate out of the mounting tube; the second tube body is installed on the inner wall of the end of the mounting tube away from the rotating rod, the second tube body is closed at both ends, the second sliding rod is arranged in the second tube body, the end of the second sliding rod away from the second tube body extends out of the end of the second tube body, the end surface of the second sliding rod close to the first tube body is connected to a second piston, and the second piston is slidably sealed in the second tube body; one end of the flexible tube is connected to the end of the first tube body, and the other end of the flexible tube is connected to the second tube body; the first tube body and the second tube body store a medium; the driving assembly is installed on the extension tube, and the driving assembly is used to drive the end of the second sliding rod.

[0012] Optionally, the end face of the mounting tube away from the rotating rod is connected to a first connecting tube, and the inner wall of the end of the extension tube is threadedly connected to the outer wall of the first connecting tube; the outer peripheral surface of the end of the extension tube away from the mounting tube is threadedly connected to a second connecting tube, a guide tube is installed on the top of the fixed handle, and the outer wall of the end of the second connecting tube away from the first connecting tube is threadedly connected to the inner wall of the guide tube; the outer wall of the second connecting tube is connected to a retaining ring, and the retaining ring fits against the end face of the guide tube.

[0013] Optionally, the driving assembly includes an extension rod, a guide rod and a driving component; the extension rod is arranged in the guide tube, and the end of the second piston rod is threadedly connected to the end of the extension rod; the guide rod slides on the inner wall of the guide tube, and the end of the guide rod slides on the inner wall of the second connecting tube, and the end face of the guide rod close to the extension rod is connected to a plurality of elastic plates; the end of the extension rod is located between the plurality of elastic plates, and the inner side surface of the elastic plate is fitted to the circumference of the extension rod; the circumference of the end of the extension rod close to the guide rod is connected to a positioning bead, and the inner side surface of the elastic plate is provided with a positioning groove for the positioning bead to enter; the driving component is installed in the fixed handle, and the driving component is used to drive the guide rod to slide.

[0014] Optionally, a circular plate is connected to the end of the movable handle near the positioning pin, and the circular plate is coaxially connected to the circumferential surface of the positioning pin, and an engagement opening for the circular plate to enter is provided at the bottom of the guide tube; the driving component includes an arc-shaped gear ring and a rack, and the inner circumferential surface of the arc-shaped gear ring is connected to the circumferential surface of the circular plate; the rack is connected to the circumferential surface of the guide rod, and the rack is arranged along the length direction of the guide rod, and the rack is engaged with the arc-shaped gear ring.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: 1. When operating the surgical scissors, the movable handle is rotated around the positioning pin, and the movable handle drives the scissors to open and close through the driving mechanism; the flip mechanism drives the rotating rod to rotate, and the rotating rod rotates around the rotating axis toward the mounting tube, and the rotating rod drives the scissors to rotate together, changing the direction of the scissors, so that the scissors and the extension tube form an angle, and the angle of the scissors and the extension tube is rotated according to the position of the lesion to be cut, so that the doctor does not need to tilt the extension tube excessively, but only needs to operate the scissors to rotate around the rotating axis, and then the scissors are driven to open and close through the driving mechanism, and the scissors cut the connection at the lesion, thereby improving the convenience of operating the surgical scissors; 2. When the rotating rod needs to be driven to rotate, the rotating disk is rotated, and the rotating disk drives the transmission rope through the ball in the groove. The transmission rope is connected to one end of the rotating rod to pull the rotating rod, and the rotating rod rotates around the rotating axis to the mounting tube. The rotation of the rotating rod drives the flip plate to rotate, and the flip plate drives the connecting plate to rotate in the yielding mouth, and the connecting plate pulls the other end of the transmission rope; when the rotating rod needs to rotate, the rotating disk is driven to rotate in the opposite direction, and the rotating disk drives the transmission rope through the driving ball. One end of the transmission rope pulls the connecting plate, so that the connecting plate rotates in the yielding mouth, the connecting plate drives the flip plate to rotate, and the flip plate drives the rotating rod to rotate, and the rotating rod pulls the other end of the transmission rope; 3. When it is necessary to drive the first blade and the second blade to open, the driving mechanism drives the push rod to slide in the sliding groove toward the mounting tube, the push rod slides in the sliding groove, the push rod pushes the first push plate and the second push plate, the first push plate drives the first blade to rotate around the pin axis to one side, and the second push plate drives the second blade to rotate around the pin axis to the other side, so that the first blade and the second blade are separated; when it is necessary to drive the first blade and the second blade to close, the driving mechanism drives the push rod to slide in the sliding groove toward the rotating rod, the push rod slides in the sliding groove, the push rod pushes the first push plate and the second push plate, the first push plate drives the first blade to rotate around the pin axis, and the second push plate drives the second blade to rotate around the pin axis, so that the first blade and the second blade are closed; 4. When it is necessary to drive the push rod to move, the drive assembly drives the second sliding rod to move, the second sliding rod drives the second piston to push or pull the medium in the second tube body, the medium is transmitted through the flexible tube, the medium in the first tube body pulls or pushes the first piston, the first piston drives the first sliding rod to slide, and the first sliding rod drives the push rod to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the structure of the multifunctional device according to an embodiment of the present application; Figure 2 is a schematic structural diagram of the multifunctional device according to another embodiment of the present application from another perspective; Figure 3 yes Figure 1 A schematic diagram of the enlarged structure of part A; Figure 4 is a schematic diagram of the cross-sectional structure of the installation pipe of the embodiment of the present application; Figure 5 yes Figure 2 A schematic diagram of the enlarged structure of part B; Figure 6 is a schematic diagram of the cross-sectional structure of the first side panel of the embodiment of the present application; Figure 7 yes Figure 2 A schematic diagram of the enlarged structure of the middle C part; Figure 8 is a schematic diagram of the structure of the rotating disk of an embodiment of the present application; Fig. 9 is a schematic diagram of the cross-sectional structure of the guide tube of an embodiment of the present application; Fig.10 It is a schematic diagram of the structure of the elastic plate of an embodiment of the present application.

[0017] Description of reference numerals: 1. Scissors; 11. First blade; 111. First push plate; 12. Second blade; 121. Second push plate; 13. Pin; 14. Push rod; 15. Slide groove; 2. Rotating rod; 21. Turning plate; 22. First side plate; 23. Second side plate; 24. Slide groove; 3. Mounting tube; 31. Mounting opening; 32. Rotating shaft; 33. Notch; 34. First groove; 35. Make way opening; 36. Opening; 37. First connecting tube; 4. Extension tube; 41. Second groove; 42. Limiting ring; 43. Second connecting tube; 431. Stop ring; 5. Movable handle; 51. Round plate; 6. Fixed handle; 61. Positioning pin; 62. Plug-in groove; 63. Finger groove; 64. Guide tube; 641. Gnawing 1. a plurality of gears are provided with a plurality of gears, wherein the gears are provided with a plurality of gears, wherein the gears are provided with a plurality of gears, and the plurality of gears are provided with a plurality of gears. The gears are provided with a plurality of gears, wherein the gears are provided with a plurality of gears. The gears are provided with a plurality of gears, wherein the gears are provided with a plurality of gears. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1-10 This application is described in further detail.

[0019] The present application discloses a multifunctional instrument for laparoscopic surgery. Figure 1-10 The multifunctional instrument comprises scissors 1, a rotating rod 2, a mounting tube 3, an extension tube 4, a movable handle 5 and a fixed handle 6; the scissors 1 are mounted on the end of the rotating rod 2, and the end of the rotating rod 2 away from the scissors 1 is fitted to the end surface of the mounting tube 3; the end surface of the rotating rod 2 close to the mounting tube 3 is connected with a flip plate 21, and the flip plate 21 is located on the side of the rotating rod 2; the side surface of the mounting tube 3 close to the flip plate 21 is provided with a mounting opening 31 for the flip plate 21 to rotate, and the inner wall of the mounting opening 31 is connected with a rotating shaft 32, and the rotating shaft 32 passes through the flip plate 21, and the flip plate 21 rotates around the rotating shaft 32 rotates; a notch 33 for the end of the rotating rod 2 to enter is provided on the circumferential surface of the end of the mounting tube 3 close to the rotating rod 2, and the notch 33 is connected to the mounting opening 31; one end of the extension tube 4 is connected to the end of the mounting tube 3 away from the rotating rod 2, and the other end of the extension tube 4 is mounted on the fixed handle 6, and one end of the movable handle 5 is rotatably connected to the fixed handle 6 through the positioning pin 61; a turning mechanism 7 for driving the rotating rod 2 to rotate around the rotating axis 32 is installed on the fixed handle 6; a driving mechanism 8 is installed in the extension tube 4, and the movable handle 5 drives the scissors 1 to open and close through the driving mechanism 8.

[0020] When operating the surgical scissors, the movable handle 5 is rotated around the positioning pin 61, and the movable handle 5 drives the scissors 1 to open and close through the driving mechanism 8; the flip mechanism 7 drives the rotating rod 2 to rotate, and the rotating rod 2 rotates toward the mounting tube 3 around the rotating axis 32, and the rotating rod 2 drives the scissors 1 to rotate together, changing the direction of the scissors 1, so that the scissors 1 and the extension tube 4 form an angle, and the angle of the scissors 1 and the extension tube 4 is rotated according to the position of the lesion to be cut, so that the doctor does not need to excessively tilt the extension tube 4, and only needs to operate the scissors 1 to rotate around the rotating axis 32, and then the scissors 1 are driven to open and close by the driving mechanism 8, and the scissors 1 cuts the connection at the lesion, thereby improving the convenience of operating the surgical scissors.

[0021] The circumference of the mounting tube 3 is provided with a first groove 34 communicating with the mounting opening 31, and the circumference of the extension tube 4 is provided with a second groove 41 communicating with the first groove 34; the flip mechanism 7 includes a rotating disk 71, a transmission rope 72, a sleeve 73 and a connecting plate 74, the sleeve 73 is embedded in the first groove 34 and the second groove 41, the transmission rope 72 is arranged in the sleeve 73, and both ends of the transmission rope 72 extend out of the sleeve 73 near the end of the rotating rod 2; one side of the connecting plate 74 is connected to the circumference of the flip plate 21, and the inner wall of the mounting opening 31 is provided with a connecting The plate 74 rotates around the rotating shaft 32 to make way for the opening 35, and the opening 35 is connected to the notch 33; one end of the transmission rope 72 is connected to the side of the rotating rod 2 close to the end face of the mounting tube 3, and the other end of the transmission rope 72 is connected to the connecting plate 74; the rotating disk 71 is rotatably connected to the side of the fixed handle 6, and the transmission rope 72 is sleeved on the circumference of the rotating disk 71, and the part of the transmission rope 72 close to the rotating disk 71 is connected to a plurality of ball bearings 721, and the plurality of ball bearings 721 are evenly distributed, and the circumference of the rotating disk 71 is provided with grooves 711 for the ball bearings 721 to enter.

[0022] When it is necessary to drive the rotating rod 2 to rotate, the rotating disk 71 is rotated, and the rotating disk 71 drives the transmission rope 72 to transmit through the ball 721 in the groove 711. The transmission rope 72 is connected to one end of the rotating rod 2 to pull the rotating rod 2, and the rotating rod 2 rotates toward the mounting tube 3 around the rotating shaft 32. The rotation of the rotating rod 2 drives the flip plate 21 to rotate, and the flip plate 21 drives the connecting plate 74 to rotate in the clearance opening 35, and the connecting plate 74 pulls the other end of the transmission rope 72; when it is necessary to rotate the rotating rod 2, the rotating disk 71 is driven to rotate in the opposite direction, and the rotating disk 71 drives the transmission rope 72 to transmit through the driving ball 721. One end of the transmission rope 72 pulls the connecting plate 74, so that the connecting plate 74 rotates in the clearance opening 35, the connecting plate 74 drives the flip plate 21 to rotate, and the flip plate 21 drives the rotating rod 2 to rotate, and the rotating rod 2 pulls the other end of the transmission rope 72.

[0023] The fixed handle 6 is rotatably connected to the side with two guide wheels 75 arranged upper and lower. The part of the transmission rope 72 above the rotating disk 71 is overlapped with the top of the guide wheel 75 located above, and the part of the transmission rope 72 below the rotating disk 71 is overlapped with the top of the guide wheel 75 located below; the circumferential surface of the guide wheel 75 is provided with an annular groove for the transmission rope 72 to slide, and the annular groove and the groove 711 are in the same plane.

[0024] In order to ensure the stable transmission of the transmission rope 72 on the rotating disk 71, a guide wheel 75 is provided to guide the transmission rope 72 passing through the sleeve 73 so that the guided transmission rope 72 can be in the same plane as the groove 711, which facilitates the docking of the ball 721 with the groove 711.

[0025] A plug-in slot 62 is provided on the side of the fixed handle 6 close to the rotating disk 71, and an insert block 76 is inserted into the inner wall of the plug-in slot 62. The side of the insert block 76 close to the rotating disk 71 is connected with a rotating shaft 761, and the rotating shaft 761 passes through the rotating disk 71. The circumferential surface of the rotating shaft 761 is rotatably connected to a rotating seat 762, and the rotating seat 762 is coaxially connected to the rotating disk 71; the circumferential surface of the rotating seat 762 is connected to a rotating plate 763, and the end side of the rotating plate 763 away from the rotating seat 762 is connected to a pressing plate 764 for pressing by fingers, and a finger slot 63 for movement of the pressing plate 764 is provided on the side of the fixed handle 6.

[0026] When it is necessary to assemble the rotating disk 71 on the fixed handle 6, the insert block 76 is aligned with the insertion slot 62 and the insert block 76 is inserted into the insertion slot 62, so as to complete the quick assembly of the rotating disk 71; when it is necessary to drive the rotating disk 71 to rotate, by holding the fixed handle 6, the index finger presses or pushes the pressing plate 764, the pressing plate 764 drives the selection plate to rotate, the rotating plate 763 drives the rotating seat 762, and the rotating seat 762 drives the rotating disk 71 to rotate around the rotating shaft 761.

[0027] A limiting ring 42 is sleeved on the circumference of the extension tube 4 , and the limiting ring 42 slides on the mounting tube 3 and the extension tube 4 until it slides to the end of the extension tube 4 close to the fixed handle 6 ; the limiting ring 42 is used to stabilize the end of the sleeve 73 .

[0028] The rotating rod 2 includes a first side plate 22 and a second side plate 23, the first side plate 22 and the second side plate 23 are aligned, the flip plate 21 is connected to the first side plate 22 close to the end face of the mounting tube 3, and the end faces of the first side plate 22 and the second side plate 23 are attached to the end face of the mounting tube 3; the scissors 1 include a first blade 11, a second blade 12 and a pin 13; the two ends of the pin 13 are respectively fixedly connected to the first side plate 22 and the second side plate 23 close to each other; the first blade 11 and the second blade 12 are arranged between the first side plate 22 and the second side plate 23, the first blade 11 is attached to the first side plate 22, the second blade 12 is attached to the second side plate 23, the ends of the first blade 11 and the second blade 12 are both rotatably connected to the pin 13, and the side face of the first blade 11 is attached to the side face of the second blade 12; the driving mechanism 8 is used to drive the first blade 11 and the second blade 12 to rotate around the pin 13.

[0029] The end surface of the first blade 11 close to the mounting tube 3 is connected to the first push plate 111, and the end surface of the second blade 12 close to the mounting tube 3 is connected to the second push plate 121; the first push plate 111 is attached to the first side plate 22, and the second push plate 121 is attached to the second side plate 23, and the first push plate 111 and the second push plate 121 are arranged crosswise; the first push plate 111 and the second push plate 121 are penetrated by push rods 14, and the first push plate 111 and the second push plate 121 are provided with sliding grooves 15 for the push rods 14 to slide, and the sliding grooves 15 are connected to the end surfaces of the first push plate 111 and the second push plate 121; the sides of the first side plate 22 and the second side plate 23 close to each other are both provided with sliding grooves 24 for the two ends of the push rod 14 to slide; the driving mechanism 8 drives the push rod 14 to slide in the sliding grooves 24.

[0030] When it is necessary to drive the first blade 11 and the second blade 12 to open, the driving mechanism 8 drives the push rod 14 to slide in the sliding groove 24 toward the mounting tube 3, the push rod 14 slides in the sliding groove 15, the push rod 14 pushes the first push plate 111 and the second push plate 121, the first push plate 111 drives the first blade 11 to rotate around the pin 13 to one side, and the second push plate 121 drives the second blade 12 to rotate around the pin 13 to the other side, so that the first blade 11 and the second blade 12 are separated; when it is necessary to drive the first blade 11 and the second blade 12 to close, the driving mechanism 8 drives the push rod 14 to slide in the sliding groove 24 toward the rotating rod 2, the push rod 14 slides in the sliding groove 15, the push rod 14 pushes the first push plate 111 and the second push plate 121, the first push plate 111 drives the first blade 11 to rotate around the pin 13, and the second push plate 121 drives the second blade 12 to rotate around the pin 13, so that the first blade 11 and the second blade 12 are closed.

[0031] The driving mechanism 8 includes a first tube body 81, a first sliding rod 82, a second tube body 83, a second sliding rod 84, a flexible tube 85 and a driving assembly 86; the first tube body 81 is installed on the end surface of the rotating rod 2, the first tube body 81 is closed at both ends, the first sliding rod 82 is arranged in the first tube body 81, and the end of the first sliding rod 82 close to the push rod 14 extends out of the end of the first tube body 81 and is connected to the push rod 14; the end of the first sliding rod 82 away from the push rod 14 is connected to the first piston 821, and the first piston 821 is slidably sealed in the first tube body 81; the peripheral surface of the mounting tube 3 is provided with an opening 36 for the first tube body 81 to rotate out of the mounting tube 3; the second tube body 83 is installed on the inner wall of the end of the mounting tube 3 away from the rotating rod 2, and the second tube body 83 is closed at both ends The second sliding rod 84 is arranged in the second tube body 83, and one end of the second sliding rod 84 away from the second tube body 83 extends out of the end of the second tube body 83. The end surface of the second sliding rod 84 close to the first tube body 81 is connected with the second piston 841, and the second piston 841 slides and seals in the second tube body 83; the flexible tube 85 is arranged in the mounting tube 3, and the flexible tube 85 is located between the first tube body 81 and the second tube body 83. One end of the flexible tube 85 is connected to the end of the first tube body 81, and the other end of the flexible tube 85 is connected to the second tube body 83; the first tube body 81 and the second tube body 83 store a medium, and the medium can be physiological saline, sterile water, etc.; the driving component 86 is installed on the extension tube 4, and the driving component 86 is used to drive the end of the second sliding rod 84.

[0032] When the rotating rod 2 rotates, the end of the first tube body 81 rotates out of the mounting tube 3 from the mounting port 31, and the flexible tube 85 will be stretched; when it is necessary to drive the push rod 14 to move, the driving assembly 86 drives the second sliding rod 84 to move, and the second sliding rod 84 drives the second piston 841 to push or pull the medium in the second tube body 83. The medium is transmitted through the flexible tube 85, and the medium in the first tube body 81 pulls or pushes the first piston 821, and the first piston 821 drives the first sliding rod 82 to slide, and the first sliding rod 82 drives the push rod 14 to move.

[0033] The end face of the mounting tube 3 away from the rotating rod 2 is connected to the first connecting tube 37, and the inner wall of the end of the extension tube 4 is threadedly connected to the outer wall of the first connecting tube 37; the outer peripheral surface of the end of the extension tube 4 away from the mounting tube 3 is threadedly connected to the second connecting tube 43, and a guide tube 64 is installed on the top of the fixed handle 6, and the outer wall of the end of the second connecting tube 43 away from the first connecting tube 37 is threadedly connected to the inner wall of the guide tube 64; the outer wall of the second connecting tube 43 is connected to a retaining ring 431, and the retaining ring 431 fits the end face of the guide tube 64.

[0034] The driving assembly 86 includes an extension rod 861, a guide rod 862 and a driving component 863; the extension rod 861 is arranged in the guide tube 64, and the end of the second piston 841 is threadedly connected to the end of the extension rod 861; the guide rod 862 slides on the inner wall of the guide tube 64, and the end of the guide rod 862 slides on the inner wall of the second connecting tube 43, and the end surface of the guide rod 862 close to the extension rod 861 is connected with a plurality of elastic plates 8621, and the elastic plates 8621 are evenly distributed around the circumference of the guide rod 862; the end of the extension rod 861 is located between the plurality of elastic plates 8621, and the inner side surface of the elastic plate 8621 is attached to the peripheral surface of the extension rod 861; the peripheral surface of the end of the extension rod 861 close to the guide rod 862 is connected with a positioning bead 8622, and the inner side surface of the elastic plate 8621 is provided with a positioning groove 8623 for the positioning bead 8622 to enter; the driving component 863 is installed in the fixed handle 6, and the driving component 863 is used to drive the guide rod 862 to slide.

[0035] When it is necessary to drive the second sliding rod 84 to move, the driving component 863 drives the guide rod 862 to slide in the guide tube 64, and the guide rod 862 drives the extension rod 861 to slide through the positioning bead 8622 clamped by the elastic plate 8621, and the extension rod 861 can drive the second sliding rod 84 to slide; when the extension rod 861 and the guide rod 862 are connected, the second connecting tube 43 is rotated to expose the positioning bead 8622, and then the extension rod 861 is inserted between the elastic plates 8621, and the positioning bead 8622 squeezes the elastic plate 8621 until the positioning bead 8622 enters the positioning groove 8623, and the elastic plate 8621 returns to its original position, and then the second connecting tube 43 is rotated so that the second connecting tube 43 is sleeved on the outer peripheral surface of the elastic plate 8621, and the second connecting tube 43 cooperates with the guide tube 64 to press the elastic plate 8621.

[0036] A circular plate 51 is connected to the end of the movable handle 5 near the positioning pin 61, and the circular plate 51 is coaxially rotatably connected to the circumference of the positioning pin 61. An engagement opening 641 for the circular plate 51 to enter is provided at the bottom of the guide tube 64; the driving component 863 includes an arc-shaped gear ring 8631 and a rack 8632, and the inner circumference of the arc-shaped gear ring 8631 is connected to the circumference of the circular plate 51; the rack 8632 is connected to the circumference of the guide rod 862, and the rack 8632 is arranged along the length direction of the guide rod 862, and the rack 8632 is engaged with the arc-shaped gear ring 8631.

[0037] When it is necessary to drive the guide rod 862 to slide in the guide tube 64, the movable handle 5 rotates around the positioning pin 61, the positioning pin 61 drives the circular plate 51 to rotate, the circular plate 51 drives the arc-shaped gear ring 8631 to rotate, the arc-shaped gear ring 8631 drives the rack 8632 to move, and the rack 8632 can drive the guide rod 862 to slide.

[0038] The implementation principle of a multifunctional instrument for laparoscopic surgery in an embodiment of the present application is as follows: when operating the surgical scissors, the movable handle 5 is rotated around the positioning pin 61, and the movable handle 5 drives the scissors 1 to open and close through the driving mechanism 8; the flipping mechanism 7 drives the rotating rod 2 to rotate, and the rotating rod 2 rotates toward the mounting tube 3 around the rotating axis 32, and the rotating rod 2 drives the scissors 1 to rotate together, changing the direction of the scissors 1, so that the scissors 1 and the extension tube 4 form an angle, and the angle of the scissors 1 and the extension tube 4 is rotated according to the position to be cut of the lesion, so that the doctor does not need to excessively tilt the extension tube 4, and only needs to operate the scissors 1 to rotate around the rotating axis 32, and then the scissors 1 are driven to open and close through the driving mechanism 8, and the scissors 1 cuts the connection at the lesion, thereby improving the convenience of operating the surgical scissors.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multifunctional instrument for laparoscopic surgery, characterized in that: The invention comprises a pair of scissors (1), a rotating rod (2), a mounting tube (3), an extension tube (4), a movable handle (5) and a fixed handle (6); the scissors (1) are mounted on the end of the rotating rod (2); the end surface of the rotating rod (2) is connected to a flip plate (21), and the flip plate (21) is located on the side of the rotating rod (2); a mounting opening (31) for rotating the flip plate (21) is arranged on the side of the mounting tube (3) close to the flip plate (21); the inner wall of the mounting opening (31) is connected to a rotating shaft (32), the rotating shaft (32) passes through the flip plate (21), and the flip plate (21) rotates around the rotating shaft (32); the end of the mounting tube (3) close to the rotating rod (2) is provided with a rotating shaft (32) for rotating the flip plate (21); A notch (33) is provided on the circumferential surface of the part for the end of the rotating rod (2) to enter, and the notch (33) is connected to the mounting opening (31); one end of the extension tube (4) is connected to the end of the mounting tube (3) away from the rotating rod (2), and the other end of the extension tube (4) is mounted on the fixed handle (6); one end of the movable handle (5) is rotatably connected to the fixed handle (6) through a positioning pin (61); a turning mechanism (7) is installed on the fixed handle (6) for driving the rotating rod (2) to rotate around the rotating axis (32); a driving mechanism (8) is installed in the extension tube (4), and the movable handle (5) drives the scissors (1) to open and close through the driving mechanism (8).

2. A multifunctional instrument for laparoscopic surgery according to claim 1, characterized in that: The mounting tube (3) is provided with a first groove (34) communicating with the mounting opening (31) on its circumference, and the extension tube (4) is provided with a second groove (41) communicating with the first groove (34) on its circumference; the flip mechanism (7) comprises a rotating disk (71), a transmission rope (72), a sleeve (73) and a connecting plate (74); the sleeve (73) is embedded in the first groove (34) and the second groove (41); the transmission rope (72) is arranged in the sleeve (73); both ends of the transmission rope (72) extend out of the sleeve (73) near the end of the rotating rod (2); one side of the connecting plate (74) is connected to the circumference of the flip plate (21); the inner wall of the mounting opening (31) is provided with a groove for the connecting plate (73) to rotate; The connecting plate (74) rotates around the rotating shaft (32) to form a clearance opening (35), and the clearance opening (35) is connected to the notch (33); one end of the transmission rope (72) is connected to the side of the rotating rod (2) close to the end face of the mounting tube (3), and the other end of the transmission rope (72) is connected to the connecting plate (74); the rotating disk (71) is rotatably connected to the side of the fixed handle (6), the transmission rope (72) is sleeved on the circumference of the rotating disk (71), and the part of the transmission rope (72) close to the rotating disk (71) is connected to a plurality of balls (721), and the plurality of balls (721) are evenly distributed, and the circumference of the rotating disk (71) is provided with grooves (711) for the balls (721) to enter.

3. The multifunctional instrument for laparoscopic surgery according to claim 2, characterized in that: The fixed handle (6) is rotatably connected to two guide wheels (75) arranged upper and lower on the side, the transmission rope (72) above the rotating disk (71) is overlapped with the top of the guide wheel (75) located above, and the transmission rope (72) below the rotating disk (71) is overlapped with the top of the guide wheel (75) located below; the circumferential surface of the guide wheel (75) is provided with an annular groove for the transmission rope (72) to slide, and the annular groove and the groove (711) are in the same plane.

4. The multifunctional instrument for laparoscopic surgery according to claim 2, characterized in that: The fixed handle (6) is provided with an insertion groove (62) on the side close to the rotating disk (71), and an insertion block (76) is inserted into the inner wall of the insertion groove (62). The insertion block (76) is connected to a rotating shaft (761) on the side close to the rotating disk (71), and the rotating shaft (761) passes through the rotating disk (71). The rotating shaft (761) is rotatably connected to a rotating seat (762) on the circumference, and the rotating seat (762) is coaxially connected to the rotating disk (71); the rotating seat (762) is connected to a rotating plate (763) on the circumference, and a pressing plate (764) for finger pressing is connected to the side of the end of the rotating plate (763) away from the rotating seat (762), and a finger groove (63) for movement of the pressing plate (764) is provided on the side of the fixed handle (6).

5. The multifunctional instrument for laparoscopic surgery according to claim 1, characterized in that: The rotating rod (2) comprises a first side plate (22) and a second side plate (23); the flip plate (21) is connected to the end surface of the first side plate (22) close to the mounting tube (3); the end surfaces of the first side plate (22) and the second side plate (23) are in contact with the end surface of the mounting tube (3); the scissors (1) comprise a first blade (11), a second blade (12) and a pin (13); the two ends of the pin (13) are respectively fixedly connected to the side surfaces of the first side plate (22) and the second side plate (23) close to each other; the first blade (11) and the second blade (12) are arranged between the first side plate (22) and the second side plate (23), and the ends of the first blade (11) and the second blade (12) are both rotatably connected to the pin (13); the driving mechanism (8) is used for driving the first blade (11) and the second blade (12) to rotate around the pin (13).

6. The multifunctional instrument for laparoscopic surgery according to claim 5, characterized in that: The first blade (11) is connected to a first push plate (111) at an end surface close to the mounting tube (3), and the second blade (12) is connected to a second push plate (121) at an end surface close to the mounting tube (3); the first push plate (111) and the second push plate (121) are arranged crosswise; a push rod (14) is passed through the first push plate (111) and the second push plate (121), and a sliding groove (15) for the push rod (14) to slide is arranged in the first push plate (111) and the second push plate (121), and the sliding groove (15) is connected to the end surfaces of the first push plate (111) and the second push plate (121); sliding grooves (24) for the two ends of the push rod (14) to slide are arranged on the side surfaces close to each other of the first side plate (22) and the second side plate (23); the driving mechanism (8) drives the push rod (14) to slide in the sliding groove (24).

7. The multifunctional instrument for laparoscopic surgery according to claim 6, characterized in that: The driving mechanism (8) comprises a first tube body (81), a first sliding rod (82), a second tube body (83), a second sliding rod (84), a flexible tube (85) and a driving assembly (86); the first tube body (81) is mounted on the end surface of the rotating rod (2), both ends of the first tube body (81) are closed, the first sliding rod (82) is arranged in the first tube body (81), one end of the first sliding rod (82) close to the push rod (14) extends out of the end of the first tube body (81) and is connected to the push rod (14); the end of the first sliding rod (82) away from the push rod (14) is connected to a first piston (821), and the first piston (821) is slidably sealed in the first tube body (81); the peripheral surface of the mounting tube (3) is provided with an opening (36) for the first tube body (81) to rotate out of the mounting tube (3); the second tube body (83) is mounted on the The mounting tube (3) is disposed at an inner wall of an end portion away from the rotating rod (2); both ends of the second tube body (83) are closed; the second sliding rod (84) is disposed in the second tube body (83); one end of the second sliding rod (84) away from the second tube body (83) extends out of the end portion of the second tube body (83); the end surface of the second sliding rod (84) close to the first tube body (81) is connected to a second piston (841); the second piston (841) is slidably sealed in the second tube body (83); one end of the flexible tube (85) is connected to the end portion of the first tube body (81); the other end of the flexible tube (85) is connected to the second tube body (83); a medium is stored in the first tube body (81) and the second tube body (83); the driving component (86) is mounted on the extension tube (4); the driving component (86) is used to drive the end portion of the second sliding rod (84).

8. The multifunctional instrument for laparoscopic surgery according to claim 7, characterized in that: The end surface of the mounting tube (3) away from the rotating rod (2) is connected to a first connecting tube (37), and the inner wall of the end of the extension tube (4) is threadedly connected to the outer wall of the first connecting tube (37); the outer peripheral surface of the end of the extension tube (4) away from the mounting tube (3) is threadedly connected to a second connecting tube (43), and a guide tube (64) is installed on the top of the fixed handle (6), and the outer wall of the end of the second connecting tube (43) away from the first connecting tube (37) is threadedly connected to the inner wall of the guide tube (64); the outer wall of the second connecting tube (43) is connected to a retaining ring (431), and the retaining ring (431) is attached to the end surface of the guide tube (64).

9. The multifunctional instrument for laparoscopic surgery according to claim 8, characterized in that: The driving assembly (86) comprises an extension rod (861), a guide rod (862) and a driving component (863); the extension rod (861) is arranged in the guide tube (64), and the end of the second piston (841) rod is threadedly connected to the end of the extension rod (861); the guide rod (862) slides on the inner wall of the guide tube (64), and the end of the guide rod (862) slides on the inner wall of the second connecting tube (43); the end surface of the guide rod (862) close to the extension rod (861) is connected to a plurality of elastic plates (8621); The end of the extension rod (861) is located between the plurality of elastic plates (8621), and the inner side surface of the elastic plate (8621) is in contact with the circumference of the extension rod (861); the circumference of the end of the extension rod (861) close to the guide rod (862) is connected with a positioning bead (8622), and the inner side surface of the elastic plate (8621) is provided with a positioning groove (8623) for the positioning bead (8622) to enter; the driving component (863) is installed in the fixed handle (6), and the driving component (863) is used to drive the guide rod (862) to slide.

10. The multifunctional instrument for laparoscopic surgery according to claim 9, characterized in that: The movable handle (5) is connected to a circular plate (51) at the end near the positioning pin (61), and the circular plate (51) is coaxially rotatably connected to the circumferential surface of the positioning pin (61). The bottom of the guide tube (64) is provided with an engagement opening (641) for the circular plate (51) to enter; the driving component (863) comprises an arc-shaped toothed ring (8631) and a rack (8632), and the inner circumferential surface of the arc-shaped toothed ring (8631) is connected to the circumferential surface of the circular plate (51); the rack (8632) is connected to the circumferential surface of the guide rod (862), and the rack (8632) is arranged along the length direction of the guide rod (862), and the rack (8632) is engaged with the arc-shaped toothed ring (8631).

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