Laparoscope grasping forceps with controllable channel and use method of laparoscope grasping forceps

Abstract

The invention relates to the technical field of laparoscope grasping forceps and discloses a laparoscope grasping forceps with a controllable channel and a using method thereof.The laparoscope grasping forceps comprise a forceps handle and an exploring tube fixedly installed on the forceps handle, a connecting column is fixedly installed at the front end of the exploring tube, a fixed clamping jaw is fixedly installed at the front end of the connecting column, and a movable clamping jaw is movably installed at the front end of the connecting column; the inner cavity is formed in the fixed clamping jaw; the through groove is formed in the outer wall of the fixed clamping jaw and communicates with the inner cavity; the closing plate is movably arranged at the through groove and used for closing or opening the through groove; according to the laparoscope grasping forceps with the controllable channel, on the basis of a traditional clamping function, the smoke exhaust channel, the flushing channel and the switching mechanism convenient to operate are additionally arranged, the integration of the clamping function, the smoke exhaust function and the flushing function is achieved, the switching frequency of surgical instruments is reduced, and the operation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of laparoscopic grasping forceps, and in particular to a laparoscopic grasping forceps with a controllable channel and a use method thereof. Background Art

[0002] Laparoscopic surgery is a minimally invasive surgical procedure that uses a laparoscope and surgical instruments inserted through a small incision in the abdominal wall to reduce intraoperative trauma and shorten postoperative recovery time. In laparoscopic surgery, doctors usually need to use high-frequency electric knives, lasers and other equipment to cut, coagulate or separate tissues in the abdominal cavity. These devices will inevitably produce a large amount of smoke (commonly known as surgical smoke) during use. Surgical smoke not only seriously blocks the field of vision and affects the doctor's observation of the surgical area, but also contains harmful substances, which are harmful to the operating room environment and the health of patients.

[0003] In the prior art, an additional smoke exhaust channel is usually added to exhaust surgical smoke. However, the additional smoke exhaust channel not only occupies the abdominal insertion port, increasing the complexity of the operation, but also requires additional operations by the surgeon, affecting the efficiency of the operation. In addition, the smoke exhaust port of the additional smoke exhaust channel is often not particularly close to the operating area, which results in the smoke not being effectively sucked out.

[0004] In addition, operations such as tissue cutting, separation, and coagulation often produce blood, tissue fragments, and other impurities in the surgical area. In order to remove pollutants and prevent smoke from adhering, intraoperative flushing is also very necessary. However, if a separate flushing tube is inserted, there are still problems such as occupying the abdominal insertion port, increasing the complexity of the operation, affecting the efficiency of the operation, and leaving additional scars on the patient's body surface. Summary of the invention

[0005] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a laparoscopic grasping forceps with a controllable channel and a method for using the same, which has the advantage of having a controllable channel.

[0006] (II) Technical solution In order to achieve the above-mentioned purpose of having a controllable channel, the present invention provides the following technical solution: a laparoscopic grasping forceps with a controllable channel, comprising a forceps handle and a probe tube fixedly mounted on the forceps handle, a connecting column fixedly mounted on the front end of the probe tube, a fixed clamping claw fixedly mounted on the front end of the connecting column, and a movable clamping claw movably mounted, and further comprising: An inner cavity is provided inside the fixed clamping jaw; A through groove is formed on the outer wall of the fixed clamping jaw and is connected with the inner cavity; A closing plate, movably arranged at the through slot, used for closing or opening the through slot; The rotating tube has one end connected with the inner cavity, and the other end passes through the connecting column and the probe tube to extend to the inside of the clamp handle and is movably connected with the suction tube or the supply tube.

[0007] As a preferred technical solution of the present invention, a suction joint and a supply joint are fixedly installed on the top of the clamp handle, and the suction pipe and the supply pipe are connected to the suction joint and the supply joint respectively; The suction connector is used to connect to a negative pressure device, and the supply connector is used to connect to a flushing liquid supply device.

[0008] As a preferred technical solution of the present invention, it also includes a switching tooth, a Z-shaped through groove is formed inside, one end of the Z-shaped through groove is located at the center of the switching tooth and is connected to the rotating tube, and the other end of the Z-shaped through groove is eccentrically opened on the other side of the switching tooth; The ends of the suction pipe and the supply pipe are both against the switching teeth, and form an angle of 120 degrees with the eccentric opening of the Z-shaped through groove.

[0009] As a preferred technical solution of the present invention, the switching tooth is rotatably mounted on the vertical plate through a mounting shaft, and the vertical plate is fixedly mounted on the inner top wall of the clamp handle; It also includes a thumbwheel which is rotatably mounted on the vertical plate through a wheel shaft and meshes with the switching teeth.

[0010] As a preferred technical solution of the present invention, a positioning plate is coaxially installed on the wheel axle, three slots are evenly opened on the side of the positioning plate, rubber clamping columns are movably arranged in the slots, the clamping columns are fixedly installed on the support plate, and the support plate is fixedly installed on the vertical plate.

[0011] As a preferred technical solution of the present invention, the bottom of the closing plate is connected to the bottom plate via a connecting rod, and the connecting rod is slidably arranged on the inner side wall of the through groove; The bottom plate can be pushed upward, and the top of the bottom plate is also connected to a bearing plate via a spring, and the bearing plate is fixedly installed in the through slot.

[0012] As a preferred technical solution of the present invention, it also includes a driving shaft, which is rotatably installed in the inner cavity, and an eccentric roller that can push the bottom plate upward is fixedly installed on the driving shaft.

[0013] As a preferred technical solution of the present invention, the rotating tube is rotatably mounted between the fixed clamping jaw and the clamp handle, and an adjusting gear is fixedly mounted on the outer wall of one end of the rotating tube located inside the clamp handle, and the adjusting gear is meshed with the thumbwheel; A driving gear is fixedly mounted on the outer wall of the rotating tube near one end of the fixed clamping jaw, and a driving tooth is meshed on the outer wall of the driving gear. One end of the driving shaft extends to the outside of the fixed clamping jaw and is fixedly connected to the driving tooth.

[0014] (III) Beneficial effects Compared with the prior art, the present invention provides a laparoscopic grasping forceps with a controllable channel, which has the following beneficial effects: 1. The laparoscopic grasping forceps with controllable channels, on the basis of the traditional clamping function, add a smoke exhaust channel, a flushing channel and a convenient switching mechanism, realizing the integration of clamping, smoke exhaust and flushing functions, reducing the frequency of switching surgical instruments and improving operating efficiency.

[0015] 2. The laparoscopic grasping forceps with controllable channels can control whether the rotating tube is closed or connected to the suction tube or the supply tube by turning the dial wheel. The operation is simple and efficient, and there is no need to pull out the probe tube.

[0016] 3. The laparoscopic grasping forceps with controllable channels adopts a sealing plate to seal the through slot, which can not only ensure the sealing of the through slot in a non-working state and avoid contamination and foreign matter entry caused by being normally open, but also lift up the surrounding tissue when it is opened to prevent the surrounding tissue from blocking the through slot and affecting the smoke exhaust or flushing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 It is a cross-sectional view of the fixed clamping jaw and the movable clamping jaw of the present invention; Figure 3 is a cross-sectional view of the fixed clamping jaw portion of the present invention; Figure 4 is a cross-sectional view of the pliers handle portion of the present invention; Figure 5 It is an enlarged schematic diagram of the thumbwheel part of the present invention; Figure 6 A cross-sectional view of a switching tooth portion of the present invention; Figure 7 It is a schematic diagram of the cooperation between the eccentric roller and the switching tooth of the present invention.

[0018] In the figure: 1. clamp handle; 2. fixed handle; 3. movable handle; 4. probe tube; 5. connecting column; 6. fixed clamp; 7. movable clamp; 8. rotating member; 9. guide wire; 10. rotating disk; 11. connecting block; 12. inner cavity; 13. through groove; 14. closing plate; 15. connecting rod; 16. bottom plate; 17. spring; 18. bearing plate; 19. eccentric roller; 20. driving shaft; 21. driving tooth; 22. rotating tube; 23. driving gear; 24. adjusting gear; 25. dial wheel; 26. positioning disk; 27. slot; 28. vertical plate; 29. ​​supporting plate; 30. clamping column; 31. switching tooth; 32. mounting shaft; 33. Z-shaped through groove; 34. suction pipe; 35. suction joint; 36. supply pipe; 37. supply joint. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Embodiment 1: See also Figure 1-Figure 7 A laparoscopic grasping forceps with a controllable channel comprises a forceps handle 1 and a probe tube 4 fixedly mounted on the forceps handle 1, a connecting column 5 fixedly mounted on the front end of the probe tube 4, a fixed clamping claw 6 fixedly mounted on the front end of the connecting column 5, and a movable clamping claw 7 movably mounted, such as Figure 2 As shown, a rotating member 8 is fixedly installed at the rear end of the movable clamping jaw 7, and the rotating member 8 is rotatably installed in the mounting groove through a thin shaft. The mounting groove is provided on the connecting column 5, and a torsion spring 1 (not shown in the figure) is also provided at the connection between the thin shaft and the mounting groove. The torsion spring 1 is used to provide a rotation force for the movable clamping jaw 7 toward the fixed clamping jaw 6; In this embodiment, a guide wire 9 is also provided, one end of which is connected to the rotating member 8, and the other end extends into the clamp handle 1, so that by pulling the guide wire 9, the rotating member 8 can be pulled to rotate the rotating member 8, and the movable jaw 7 opens, at which time the torsion spring is compressed; conversely, by loosening the guide wire 9, the movable jaw 7 can be closed again, and cooperate with the fixed jaw 6 to realize the clamping function.

[0021] like Figure 4 As shown, the other end of the guide wire 9 extends into the clamp handle 1 and is fixedly connected to the rotating disk 10. The rotating disk 10 is rotatably installed in the clamp handle 1 through the disk shaft. The side of the rotating disk 10 is connected to the movable handle 3 through the connecting block 11. In this embodiment, a second torsion spring is further provided at the connection between the disk shaft and the inner wall of the clamp handle 1. The second torsion spring is used to provide a counterclockwise rotation force for the rotating disk 10. By pressing the movable handle 3, the rotating disk 10 can be driven to rotate. When the rotating disk 10 rotates, the torsion spring 2 is compressed, the guide wire 9 is pulled, and the movable clamping jaw 7 is opened; conversely, after releasing the movable handle 3, the movable handle 3, the rotating disk 10 and the movable clamping jaw 7 can all be reset.

[0022] Therefore, in this embodiment, by pressing the movable handle 3, the opening of the movable clamping jaw 7 can be controlled, and by releasing the movable handle 3, the movable clamping jaw 7 can be reset and cooperate with the fixed clamping jaw 6 to achieve clamping.

[0023] like Figure 1 As shown, a fixed handle 2 is also installed on the pliers handle 1 to facilitate holding and manipulation.

[0024] like Figure 2 and Figure 3 As shown, an inner cavity 12 is opened inside the fixed clamping jaw 6, and a through groove 13 is opened on the outer wall of the fixed clamping jaw 6, and the through groove 13 is connected to the inner cavity 12; A rotating tube 22 is also provided, one end of which is connected to the inner cavity 12, and the other end of which passes through the connecting column 5 and the probe tube 4 and extends to the inside of the clamp handle 1, and is movably connected to the suction tube 34 or the supply tube 36. In this embodiment, a suction joint 35 and a supply joint 37 are fixedly installed on the top of the clamp handle 1, and the suction tube 34 and the supply tube 36 are connected to the suction joint 35 and the supply joint 37 respectively. The suction joint 35 is used to connect to the negative pressure device, and the supply joint 37 is used to connect to the flushing liquid supply device; When the rotating tube 22 is connected to the suction tube 34, the suction joint 35 and the negative pressure device can be used to suck out surgical smoke or effusion, ensuring a clear field of view in the surgical area; when the rotating tube 22 is connected to the supply tube 36, the supply joint 37 and the flushing liquid supply device can be used to flush blood or tissue fragments to optimize surgical operating conditions. In this embodiment, a convenient switching system is also provided for switching the connection between the rotating tube 22 and the suction tube 34 or the supply tube 36. Figure 4-Figure 6 As shown: A switching tooth 31 is provided, and a Z-shaped through groove 33 is formed inside. One end of the Z-shaped through groove 33 is located at the center of the switching tooth 31 and is connected to the rotating tube 22. The other end of the Z-shaped through groove 33 is eccentrically opened on the other side of the switching tooth 31. The ends of the suction pipe 34 and the supply pipe 36 are both against the switching tooth 31, and form an angle of 120 degrees with the eccentric opening of the Z-shaped through groove 33.

[0025] One end of the Z-shaped through groove 33 is always connected to the rotating tube 22, and the other end will be selectively connected to the suction pipe 34 and the supply pipe 36 as the switching tooth 31 rotates. Specifically, every time the switching tooth 31 rotates one hundred and twenty degrees, a switch will occur: empty / connected to the suction pipe 34 / connected to the supply pipe 36. Therefore, by controlling the rotation of the switching tooth 31, the channel can be controlled.

[0026] In this embodiment, high temperature resistant sealing gaskets are provided as required at the interfaces between the Z-shaped through groove 33 and the suction pipe 34 and the supply pipe 36 to prevent gas or liquid leakage.

[0027] In this embodiment, the switching tooth 31 is rotatably mounted on the vertical plate 28 via the mounting shaft 32, and the vertical plate 28 is fixedly mounted on the inner top wall of the clamp handle 1. It also includes a dial wheel 25, which is rotatably mounted on the vertical plate 28 via a wheel axle and meshes with the switching tooth 31. Therefore, by turning the dial wheel 25, the switching tooth 31 can be driven to rotate, thereby adjusting the function selection of the rotating tube 22.

[0028] like Figure 5As shown, a positioning plate 26 is coaxially mounted on the wheel axle, and three slots 27 are evenly arranged on the sides of the positioning plate 26. A rubber clamping column 30 is movably mounted in the slot 27. The clamping column 30 is fixedly mounted on a support plate 29, and the support plate 29 is fixedly mounted on a vertical plate 28. When the dial wheel 25 is rotated 120 degrees, the positioning plate 26 and the dial wheel 25 can be positioned by the rubber clamping column 30, which makes the regulation more convenient and avoids the dial wheel 25 from being unable to be positioned or rotating at will.

[0029] In the present invention, Figure 3 As shown, a closing plate 14 is movably provided at the through slot 13, and is used to close or open the through slot 13. Specifically, the bottom of the closing plate 14 is connected to the bottom plate 16 through a connecting rod 15, and the connecting rod 15 is slidably provided on the inner side wall of the through slot 13, and the bottom plate 16 can be pushed upward. The top of the bottom plate 16 is also connected to a bearing plate 18 through a spring 17, and the bearing plate 18 is fixedly installed in the through slot 13; When the closing plate 14 closes the through slot 13 in the non-working state, it can avoid contamination and foreign matter from being normally open; when the closing plate 14 moves up to open the through slot 13, it is convenient to flush or draw out the contents, and at the same time it can also lift up the tissue around the fixed clamp 6 to avoid the surrounding tissue blocking the through slot 13 and affecting the smoke exhaust, flushing or drainage effect.

[0030] In this embodiment, a drive shaft 20 is rotatably installed in the inner cavity 12, and an eccentric roller 19 is fixedly installed on the drive shaft 20, which can push the bottom plate 16 to move upward. When the drive shaft 20 rotates, the eccentric roller 19 can push the bottom plate 16 to move upward. When the bottom plate 16 moves upward, while compressing the spring 17, the closing plate 14 can be driven upward through the connecting rod 15 to open the through groove 13.

[0031] like Figure 3 and Figure 5 As shown, the rotating tube 22 is rotatably mounted between the fixed clamping jaw 6 and the clamp handle 1, and an adjusting gear 24 is fixedly mounted on the outer wall of one end of the rotating tube 22 located inside the clamp handle 1, and the adjusting gear 24 is meshed with the dial wheel 25. A driving gear 23 is fixedly mounted on the outer wall of the rotating tube 22 near the fixed clamping jaw 6, and a driving gear 21 is meshed on the outer wall of the driving gear 23. One end of the driving shaft 20 extends to the outside of the fixed clamping jaw 6 and is fixedly connected to the driving gear 21; Therefore, when the dial wheel 25 is turned to adjust the switch tooth 31, the adjusting gear 24 is also driven to rotate, and the rotation of the adjusting gear 24 drives the rotating tube 22 to rotate, and the rotation of the rotating tube 22 drives the driving tooth 21 to rotate through the driving gear 23, and the rotation of the driving tooth 21 drives the eccentric roller 19 to rotate through the driving shaft 20; See also Figure 7When the end of the Z-shaped through groove 33 is vacant, the thick part of the eccentric roller 19 faces downward and does not push the bottom plate 16 upward; when the end of the Z-shaped through groove 33 is connected to the suction pipe 34 or the supply pipe 36, the thick part of the eccentric roller 19 will tilt upward, thereby lifting the bottom plate 16 and opening the through groove 13; Therefore, in this embodiment, the through groove 13 can be automatically controlled to open and close according to the connection state of the rotating tube 22, which not only ensures the sealing of the through groove 13 in the non-working state and avoids the pollution and foreign matter entry caused by normal opening, but also can lift up the surrounding tissue when opening to prevent the surrounding tissue from blocking the through groove 13 and affecting the smoke exhaust or flushing effect.

[0032] Embodiment 2: This embodiment provides a method for using a laparoscopic grasping forceps with a controllable channel, which is used for the laparoscopic grasping forceps with a controllable channel provided in Embodiment 1, and specifically includes the following steps: S1, holding the clamp handle 1, inserting the fixed clamp jaw 6 and the movable clamp jaw 7 into the operating area; S2, turn the dial 25 to connect the suction pipe 34 or the supply pipe 36 with the rotating pipe 22, and open the through slot 13 to suck out the gas and liquid or flush with the flushing liquid; S3, the operation is completed, and the dial wheel 25 is reset to disconnect the connection between the rotating tube 22 and the suction tube 34 or the supply tube 36, and the through groove 13 is closed at the same time.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laparoscopic grasping forceps with a controllable channel, comprising a forceps handle (1) and a probe tube (4) fixedly mounted on the forceps handle (1), a connecting column (5) fixedly mounted on the front end of the probe tube (4), a fixed clamping claw (6) fixedly mounted on the front end of the connecting column (5), and a movable clamping claw (7) movably mounted, It is characterized in that Also includes: An inner cavity (12) is provided inside the fixed clamping jaw (6); A through groove (13) is formed on the outer wall of the fixed clamping jaw (6) and is connected to the inner cavity (12); A closing plate (14) movably disposed at the through slot (13) and used to close or open the through slot (13); The rotating tube (22) has one end connected to the inner cavity (12) and the other end extending through the connecting column (5) and the probe tube (4) to the inside of the clamp handle (1) and movably connected to the suction tube (34) or the supply tube (36).

2. A laparoscopic grasping forceps with controllable channels according to claim 1, Features: A suction joint (35) and a supply joint (37) are fixedly mounted on the top of the clamp handle (1), and the suction pipe (34) and the supply pipe (36) are respectively connected to the suction joint (35) and the supply joint (37); The suction connector (35) is used to connect to a negative pressure device, and the supply connector (37) is used to connect to a flushing liquid supply device.

3. A laparoscopic grasping forceps with controllable channels according to claim 1, Features: It also includes a switching tooth (31) having a Z-shaped through groove (33) formed therein, one end of the Z-shaped through groove (33) being located at the center of the switching tooth (31) and being in communication with the rotating tube (22), and the other end of the Z-shaped through groove (33) being eccentrically open on the other side of the switching tooth (31); The ends of the suction pipe (34) and the supply pipe (36) are both against the switching tooth (31), and form an angle of 120 degrees with the eccentric opening of the Z-shaped through groove (33).

4. A laparoscopic grasping forceps with controllable channels according to claim 3, Features: The switching tooth (31) is rotatably mounted on the vertical plate (28) via a mounting shaft (32); the vertical plate (28) is fixedly mounted on the inner top wall of the clamp handle (1); It also includes a thumbwheel (25) which is rotatably mounted on the vertical plate (28) via a wheel shaft and meshes with the switching tooth (31).

5. A laparoscopic grasping forceps with controllable channels according to claim 4, Features: A positioning plate (26) is coaxially mounted on the wheel axle, three slots (27) are evenly arranged on the sides of the positioning plate (26), a rubber clamping column (30) is movably mounted in the slot (27), the clamping column (30) is fixedly mounted on a support plate (29), and the support plate (29) is fixedly mounted on a vertical plate (28).

6. A laparoscopic grasping forceps with controllable channels according to claim 4, Features: The bottom of the closing plate (14) is connected to the bottom plate (16) via a connecting rod (15), and the connecting rod (15) is slidably arranged on the inner side wall of the through groove (13); The bottom plate (16) can be pushed upward, and the top of the bottom plate (16) is also connected to a bearing plate (18) via a spring (17), and the bearing plate (18) is fixedly mounted in the through groove (13).

7. A laparoscopic grasping forceps with controllable channels according to claim 6, Features: It also includes a drive shaft (20) rotatably mounted in the inner cavity (12), and an eccentric roller (19) that can push the bottom plate (16) upward is fixedly mounted on the drive shaft (20).

8. The laparoscopic grasping forceps with controllable channels according to claim 7, Features: The rotating tube (22) is rotatably mounted between the fixed clamping jaw (6) and the clamp handle (1), and an adjusting gear (24) is fixedly mounted on the outer wall of one end of the rotating tube (22) located inside the clamp handle (1), and the adjusting gear (24) is meshed with a thumbwheel (25); A driving gear (23) is fixedly mounted on the outer wall of the rotating tube (22) at one end close to the fixed clamp (6), and a driving tooth (21) is meshed on the outer wall of the driving gear (23). One end of the driving shaft (20) extends to the outside of the fixed clamp (6) and is fixedly connected to the driving tooth (21).

9. A method for using a laparoscopic grasping forceps with a controllable channel, used for the laparoscopic grasping forceps with a controllable channel as claimed in any one of claims 1 to 8, It is characterized in that The following steps are involved: S1. Holding the clamp handle (1), insert the fixed clamp jaw (6) and the movable clamp jaw (7) into the operating area; S2, turning the dial (25) to connect the suction pipe (34) or the supply pipe (36) to the rotating pipe (22), and at the same time opening the through groove (13) to suck out the gas and liquid or flush with the flushing liquid; S3, the operation is completed, and the dial wheel (25) is reset to disconnect the connection between the rotating tube (22) and the suction tube (34) or the supply tube (36), and the through groove (13) is closed at the same time.

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