Multifunctional instrument for laparoscopic surgery

Abstract

The present application relates to the technical field of surgical instruments, and specifically discloses a multifunctional instrument for laparoscopic surgery, which includes scissors, a rotating rod, a mounting tube, an extension tube, a movable handle, and a fixed handle; the scissors are mounted on the end of the rotating rod, and the end face of the rotating rod is connected to a flip plate; the side of the mounting tube near the flip plate is provided with a mounting opening for the flip plate to rotate, and the inner wall of the mounting opening is connected to a rotating shaft, and the rotating shaft passes through the flip plate; the circumferential surface of the end of the mounting tube near the rotating rod is provided with a notch for the end of the rotating rod to enter; 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 handle, and one end of the movable handle is rotatably connected to the fixed handle via a positioning pin; a flip mechanism for driving the rotating rod to rotate around the rotating shaft is mounted on the fixed handle; a driving mechanism is mounted in the extension tube, and the movable handle drives the scissors to open and close via the driving mechanism. The present application has the effect of improving the convenience of operating 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 specialized instruments and equipment, such as a laparoscope, to perform surgical procedures through small incisions in the patient's abdomen or pelvis. During laparoscopic surgery, numerous surgical instruments are often used, one of which is surgical scissors. Laparoscopic scissors are long, thin scissors designed to cut, remove tissue, or suture during laparoscopic surgery.

[0003] In the related art, during laparoscopic surgery, three small incisions are first made in the patient's abdominal cavity, and perforators are inserted. An endoscope is inserted into the middle perforator, and a carbon dioxide trachea is also inserted. The carbon dioxide trachea is used to inflate the abdominal cavity with carbon dioxide, causing the abdominal cavity to 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 need to be cut one by one. However, the connection between the lesion and other tissues is often different, requiring the doctor to constantly adjust the direction of the surgical scissors to cut. In particular, the connection on the back of the lesion requires the doctor to tilt the surgical scissors at a large angle, which causes the surgical scissors to constantly press on the perforator. The perforator presses on the patient's small incision, which can easily cause further tearing of the small incision. Therefore, the doctor cannot tilt the surgical scissors at a large angle, which requires the doctor to constantly move the lesion with another surgical instrument, exposing more of the connection between the lesion and the rest of the tissue, making the operation more cumbersome. 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 that adopts the following technical solutions:

[0006] 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 rotation of the flip plate, 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 handle, and one end of the movable handle is rotatably connected to the fixed handle by a positioning pin; a flip mechanism for driving the rotating rod to rotate around the rotating shaft is installed on the fixed handle; a driving mechanism is installed in the extension tube, and the movable handle drives the scissors to open and close through the driving mechanism.

[0007] Optionally, a circumferential surface of the mounting tube is provided with a first groove communicating with the mounting opening, and a circumferential surface of the extension tube is provided with a second groove communicating with the first groove; the flip mechanism includes 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 is provided in the sleeve, and both ends of the transmission rope extend out of the end of the sleeve near the rotating rod; one side of the connecting plate is connected to the circumferential surface of the flip plate, the inner wall of the mounting opening is provided with a clearance 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 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, and the part of the transmission rope close to the rotating disk is connected to a plurality of balls, and the plurality of balls are evenly distributed, and the circumferential surface of the rotating disk is provided with grooves for the balls to enter.

[0008] 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.

[0009] 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 to a rotating shaft on the side close to the rotating disk, the rotating shaft passes through the rotating disk, the circumference of the rotating shaft is rotatably connected to a rotating seat, and the rotating seat is coaxially connected to the rotating disk; the circumference of the rotating seat is connected to a rotating plate, the end side of the rotating plate away from the rotating seat is connected to a pressing plate for fingers to press, and the side of the fixed handle is provided with a finger groove for the pressing plate to move.

[0010] 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 in contact with 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 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.

[0011] Optionally, the first blade is connected to a first push plate near the end face of the mounting tube, and the second blade is connected to a second push plate near the end face of the mounting tube; the first push plate and the second push plate are arranged crosswise; push rods are passed through the first push plate and the second push plate, and sliding grooves for the push rods to slide are provided in the first push plate and the second push plate, and the sliding grooves are connected to the end faces of the first push plate and the second push plate; sliding grooves for the two ends of the push rod to slide are provided on the side faces of the first side plate and the second side plate that are close to each other; the driving mechanism drives the push rod to slide in the sliding grooves.

[0012] Optionally, the driving mechanism includes a first tube, a first sliding rod, a second tube, a second sliding rod, a flexible tube and a driving assembly; the first tube is mounted on the end surface of the rotating rod, the first tube is closed at both ends, the first sliding rod is arranged in the first tube, the end of the first sliding rod close to the push rod extends out of the end of the first tube 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; the circumference of the mounting tube is provided with an opening for the first tube to rotate out of the mounting tube; the second tube is mounted on the inner wall of the end of the mounting tube away from the rotating rod, the second tube is closed at both ends, the second sliding rod is arranged in the second tube, the end of the second sliding rod away from the second tube extends out of the end of the second tube, the end of the second sliding rod close to the first tube is connected to a second piston, and the second piston is slidably sealed in the second tube; one end of the flexible tube is connected to the end of the first tube, and the other end of the flexible tube is connected to the second tube; a medium is stored in the first tube and the second tube; the driving assembly is mounted on the extension tube, and the driving assembly is used to drive the end of the second sliding rod.

[0013] 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.

[0014] 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 with 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 with 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.

[0015] 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 circumference 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.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. When operating the surgical scissors, the movable handle rotates around the positioning pin, which then drives the scissors to open and close via a drive mechanism. The flip mechanism drives the rotating rod, which rotates around the rotating axis toward the mounting tube. The rotating rod drives the scissors to rotate together, changing the direction of the scissors and forming an angle between the scissors and the extension tube. The angle between the scissors and the extension tube is adjusted to the location of the lesion to be cut, eliminating the need for the surgeon to excessively tilt the extension tube. The surgeon simply rotates the scissors around the rotating axis, which then drives the scissors to open and close via the drive mechanism. The scissors then cut the connection at the lesion, thereby improving the convenience of surgical scissor operation.

[0018] 2. When the rotating rod needs to be driven to rotate, the rotating disk is rotated. 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. The rotating rod rotates around the rotating axis mounting tube. The rotation of the rotating rod drives the flip plate to rotate. The flip plate drives the connecting plate to rotate in the yielding hole. 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. The rotating disk drives the transmission rope through the driving ball. One end of the transmission rope pulls the connecting plate, causing the connecting plate to rotate in the yielding hole. The connecting plate drives the flip plate to rotate. The flip plate drives the rotating rod to rotate. The rotating rod pulls the other end of the transmission rope.

[0019] 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;

[0020] 4. When the push rod needs to be driven 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

[0021] Figure 1 This is a schematic structural diagram of a multifunctional device according to an embodiment of the present application;

[0022] Figure 2 This is a schematic structural diagram of the multifunctional device according to another embodiment of the present application from another perspective;

[0023] Figure 3 yes Figure 1 Schematic diagram of the enlarged structure of part A;

[0024] Figure 4 Schematic diagram of the cross-sectional structure of the installation pipe according to the embodiment of the present application;

[0025] Figure 5 yes Figure 2 Schematic diagram of the enlarged structure of part B;

[0026] Figure 6 2 is a schematic diagram of the cross-sectional structure of the first side panel of an embodiment of the present application;

[0027] Figure 7 yes Figure 2 Schematic diagram of the enlarged structure of part C;

[0028] Figure 8 This is a schematic structural diagram of a rotating disk according to an embodiment of the present application;

[0029] Figure 9 Schematic diagram of the cross-sectional structure of the guide tube according to an embodiment of the present application;

[0030] Figure 10 It is a structural schematic diagram of the elastic plate of an embodiment of the present application.

[0031] Description of reference numerals:

[0032] 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. Flip 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. Clearance 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. Insertion slot; 63. Finger groove; 64. Guide tube; 641. Gripping 7. Turning mechanism; 71. Rotating disk; 711. Groove; 72. Transmission rope; 721. Ball; 73. Sleeve; 74. Connecting plate; 75. Guide wheel; 76. Insert block; 761. Rotating shaft; 762. Rotating seat; 763. Rotating plate; 764. Pressing plate; 8. Driving mechanism; 81. First tube body; 82. First sliding rod; 821. First piston; 83. Second tube body; 84. Second sliding rod; 841. Second piston; 85. Flexible tube; 86. Driving assembly; 861. Extension rod; 862. Guide rod; 8621. Elastic plate; 8622. Positioning bead; 8623. Positioning groove; 863. Driving component; 8631. Circular arc gear ring; 8632. Rack. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-10 This application is described in further detail.

[0034] The embodiment of the present application discloses a multifunctional instrument for laparoscopic surgery. Figure 1-10 The multifunctional instrument includes 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 with the end surface of the mounting tube 3; the end surface of the rotating rod 2 close to the mounting tube 3 is connected to a flip plate 21, and the flip plate 21 is located on the side of the rotating rod 2; the side of the mounting tube 3 close to the flip plate 21 is provided with a mounting port 31 for the flip plate 21 to rotate, and the inner wall of the mounting port 31 is connected to a rotating shaft 32, which 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 flip 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.

[0035] 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 around the rotating axis 32 toward the mounting tube 3, 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 tilt the extension tube 4 excessively, but 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.

[0036] The circumference of the mounting tube 3 is provided with a first groove 34 communicating with the mounting port 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 port 31 is provided with a connection The 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, and the transmission rope 72 is sleeved on the circumference of the rotating disk 71. 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. The circumference of the rotating disk 71 is provided with grooves 711 for the balls 721 to enter.

[0037] When it is necessary to drive the rotating rod 2 to rotate, the rotating disk 71 is driven, 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 yield 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 yield opening 35, and the connecting plate 74 drives the flip plate 21 to rotate. 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.

[0038] The side of the fixed handle 6 is rotatably connected to 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 circumference 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.

[0039] 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, making it easier for the ball 721 to dock with the groove 711.

[0040] The fixed handle 6 is provided with an insertion groove 62 on the side near 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 the side of the rotating disk 71 near the rotating disk 71 with a rotating shaft 761. The rotating shaft 761 passes through the rotating disk 71, and the circumference of the rotating shaft 761 is connected to a rotating seat 762 for rotation. The rotating seat 762 is coaxially connected to the rotating disk 71; the circumference of the rotating seat 762 is connected to a rotating plate 763, and the side of the end of the rotating plate 763 away from the rotating seat 762 is connected to a pressing plate 764 for pressing by fingers. The side of the fixed handle 6 is provided with a finger groove 63 for the pressing plate 764 to move.

[0041] When the rotating disk 71 needs to be assembled 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 to complete the quick assembly of the rotating disk 71; when the rotating disk 71 needs to be driven to rotate, the fixed handle 6 is held and 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.

[0042] The extension tube 4 is provided with a limiting ring 42 on its circumference. The limiting ring 42 slides on the mounting tube 3 and the extension tube 4 until it reaches 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 .

[0043] 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's sides; 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, and 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.

[0044] 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; 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 provided 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; the side surfaces of the first side plate 22 and the second side plate 23 close to each other are 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 groove 24.

[0045] 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, and the push rod 14 slides in the sliding groove 15, and the push rod 14 pushes the first push plate 111 and the second push plate 121, and the first push plate 111 drives the first blade 11 to rotate to one side around the pin 13, and the second push plate 121 drives the second blade 12 to rotate to the other side around the pin 13, 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, and the push rod 14 slides in the sliding groove 15, and the push rod 14 pushes the first push plate 111 and the second push plate 121, and 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.

[0046] 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 slides and seals in the first tube body 81; the circumference 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 the 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 to 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, which can be physiological saline, sterile water, etc.; the driving assembly 86 is installed on the extension tube 4, and the driving assembly 86 is used to drive the end of the second sliding rod 84.

[0047] 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. The medium in the first tube body 81 pulls or pushes the first piston 821. 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.

[0048] 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 the retaining ring 431, and the retaining ring 431 fits the end face of the guide tube 64.

[0049] 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. The end face of the guide rod 862 close to the extension rod 861 is connected to 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 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 to 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.

[0050] 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 tightly.

[0051] The end of the movable handle 5 near the positioning pin 61 is connected to a circular plate 51, and the circular plate 51 is coaxially connected to the circumference 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 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.

[0052] 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.

[0053] 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 around the rotating axis 32 toward the mounting tube 3, and the rotating rod 2 drives the scissors 1 to rotate together, changing the direction of the scissors 1 so that the scissors 1 form an angle with the extension tube 4, 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, but 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.

[0054] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection 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 provided 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 circumference of the part for the end of the rotating rod (2) to enter, and the notch (33) is connected to the mounting port (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 a 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); The circumference of the mounting tube (3) is provided with a first groove (34) communicating with the mounting port (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) comprises a rotating disk (71), a transmission rope (72), a sleeve (73) and a connecting plate (74), the sleeve (73) being embedded in the first groove (34) and the second groove (41), the transmission rope (72) being provided in the sleeve (73), and both ends of the transmission rope (72) extending out of the sleeve (73) close to 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 port (31) is provided with a groove for the connecting plate (73). The connecting plate (74) rotates around the rotating shaft (32) to form a clearance opening (35), and the clearance opening (35) is communicated with 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); the portion 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. The circumference of the rotating disk (71) is provided with grooves (711) for the balls (721) to enter; The fixed handle (6) is provided with a plug-in slot (62) on the side close to the rotating disk (71), and an insert block (76) is inserted into the inner wall of the plug-in slot (62). The insert 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 the end side of the rotating plate (763) away from the rotating seat (762) is connected to a pressing plate (764) for finger pressing, and the side of the fixed handle (6) is provided with a finger groove (63) for the pressing plate (764) to move.

2. The multifunctional instrument for laparoscopic surgery according to claim 1, characterized in that: The side of the fixed handle (6) is rotatably connected to two guide wheels (75) arranged above and below. 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 circumference 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.

3. 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 face of the first side plate (22) close to the mounting tube (3); the end faces of the first side plate (22) and the second side plate (23) are fitted on the end face 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 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 to drive the first blade (11) and the second blade (12) to rotate around the pin (13).

4. The multifunctional instrument for laparoscopic surgery according to claim 3, characterized in that: The first blade (11) is connected to a first push plate (111) near the end surface of the mounting tube (3), and the second blade (12) is connected to a second push plate (121) near the end surface of 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 provided in the first push plate (111) and the second push plate (121), and the sliding groove (15) is connected to the end surface of the first push plate (111) and the second push plate (121); the side surfaces 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 groove (24).

5. The multifunctional instrument for laparoscopic surgery according to claim 4, 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 face 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), 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 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 away from the inner wall of the end of the rotating rod (2), the two ends of the second tube body (83) are closed, the second sliding rod (84) is arranged 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 of the second tube body (83), the second sliding rod (84) is connected to the end surface of the first tube body (81) with a second piston (841), and 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 of the first tube body (81), and 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 installed on the extension tube (4), and the driving component (86) is used to drive the end of the second sliding rod (84).

6. The multifunctional instrument for laparoscopic surgery according to claim 5, characterized in that: The end face 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 in contact with the end face of the guide tube (64).

7. The multifunctional instrument for laparoscopic surgery according to claim 6, characterized in that: 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); 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 multiple 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.

8. The multifunctional instrument for laparoscopic surgery according to claim 7, 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 connected to the circumference 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) 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).

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