A laparoscopic grasper with a controllable channel and its usage method

Abstract

The present invention relates to the technical field of laparoscopic grasping forceps, and discloses a laparoscopic grasping forceps with a controllable channel and its using method, which includes a forceps handle and a probe tube fixedly installed on the forceps handle. A connecting column is fixedly installed at the front end of the probe tube, and a fixed jaw is fixedly installed at the front end of the connecting column. A movable jaw is movably installed. It further includes: an inner cavity opened inside the fixed jaw; a through groove opened on the outer wall of the fixed jaw and communicating with the inner cavity; a closing plate movably arranged at the through groove for closing or opening the through groove. This laparoscopic grasping forceps with a controllable channel, on the basis of the traditional clamping function, adds a smoke exhaust channel, a flushing channel and a switching mechanism for convenient operation, realizes the integration of clamping, smoke exhaust and flushing functions, reduces the frequency of switching surgical instruments, and improves the operation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of laparoscopic grasping forceps, and specifically to a laparoscopic grasping forceps with a controllable channel and its using method. Background Art

[0002] Laparoscopic surgery is a minimally invasive surgical method. By inserting a laparoscope and surgical instruments through small incisions in the abdominal wall for operation, it can reduce intraoperative trauma and shorten the postoperative recovery time. During laparoscopic surgery, doctors usually need to use equipment such as high-frequency electrosurgical knives and lasers to perform cutting, coagulation, or separation operations on intra-abdominal tissues. Inevitably, a large amount of smoke (commonly known as surgical smoke) will be generated during the use of these devices. Surgical smoke not only seriously obscures the field of vision and affects the doctor's observation of the surgical area, but also contains harmful substances, which pose hazards to the operating room environment and the patient's health.

[0003] In the prior art, an additional smoke exhaust channel is usually added to discharge the surgical smoke. However, the added smoke exhaust channel not only occupies the abdominal insertion port, increasing the surgical complexity, but also requires additional operation by the surgical staff, affecting the surgical efficiency. In addition, for the added smoke exhaust channel, its smoke suction port is often not particularly close to the surgical area, resulting in ineffective smoke suction.

[0004] In addition, operations such as tissue cutting, separation, and coagulation often also generate blood, tissue fragments, and other impurities in the surgical area. In order to remove contaminants and prevent smoke attachment, intraoperative irrigation is also very necessary. However, if an additional irrigation tube is inserted separately, there are still problems of occupying the abdominal insertion port, increasing surgical complexity, and affecting surgical efficiency, and additional scars will be left on the patient's body surface. Summary of the Invention

[0005] (I) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the present invention provides a laparoscopic grasping forceps with a controllable channel and its using method, which has the advantage of having a controllable channel.

[0007] (II) Technical Solutions

[0008] To achieve the above object of having a controllable channel, the present invention provides the following technical solution: A laparoscopic grasping forceps with a controllable channel, including a forceps handle and a probe fixedly installed on the forceps handle. A connecting column is fixedly installed at the front end of the probe, and a fixed jaw is fixedly installed at the front end of the connecting column. A movable jaw is movably installed, and further includes:

[0009] An inner cavity, opened inside the fixed jaw;

[0010] A through groove, opened on the outer wall of the fixed jaw and communicating with the inner cavity;

[0011] A closing plate, movably arranged at the through groove for closing or opening the through groove;

[0012] A rotating tube, one end of which is communicated with the inner cavity, and the other end passes through the connecting column and the detecting tube and extends to the inside of the pliers handle, and is movably communicated with the suction tube or the supply tube.

[0013] As a preferred technical solution of the present invention, a suction joint and a supply joint are fixedly installed at the top of the pliers handle, and the suction tube and the supply tube are respectively connected to the suction joint and the supply joint;

[0014] The suction joint is used for connecting a negative pressure device, and the supply joint is used for connecting a flushing liquid supply device.

[0015] As a preferred technical solution of the present invention, it further includes a switching tooth, which has a Z-shaped through groove formed inside. One end of the Z-shaped through groove is located at the center of the switching tooth and is communicated with the rotating tube, and the other end of the Z-shaped through groove is eccentrically opened on the other surface of the switching tooth;

[0016] The ends of the suction tube and the supply tube both abut against the switching tooth and form an angle of 120 degrees with the eccentric opening of the Z-shaped through groove.

[0017] As a preferred technical solution of the present invention, the switching tooth is rotatably installed on the vertical plate through a mounting shaft, and the vertical plate is fixedly installed on the inner top wall of the pliers handle;

[0018] It further includes a dial wheel, which is rotatably installed on the vertical plate through a wheel shaft and meshes with the switching tooth.

[0019] As a preferred technical solution of the present invention, a positioning disk is coaxially installed on the wheel shaft. Three card slots are evenly opened on the side of the positioning disk. Rubber clamping posts are movably clamped in the card slots, and the clamping posts are fixedly installed on the support plate, and the support plate is fixedly installed on the vertical plate.

[0020] As a preferred technical solution of the present invention, the bottom of the closing plate is connected to the bottom plate through a connecting rod, and the connecting rod is slidably arranged on the inner side wall of the through groove;

[0021] The bottom plate can be pushed upward, and a bearing plate is further connected to the top of the bottom plate through a spring, and the bearing plate is fixedly installed in the through groove.

[0022] As a preferred technical solution of the present invention, it further includes a driving shaft, which is rotatably installed in the inner cavity, and an eccentric roller for pushing the bottom plate upward is fixedly installed on the driving shaft.

[0023] 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;

[0024] 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.

[0025] (III) Beneficial effects

[0026] Compared with the prior art, the present invention provides a laparoscopic grasping forceps with a controllable channel, which has the following beneficial effects:

[0027] 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.

[0028] 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.

[0029] 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

[0030] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a cross-sectional view of the fixed clamping jaw and the movable clamping jaw of the present invention;

[0032] Figure 3 is a cross-sectional view of the fixed clamping jaw portion of the present invention;

[0033] Figure 4 is a cross-sectional view of the pliers handle portion of the present invention;

[0034] Figure 5 It is an enlarged schematic diagram of the thumbwheel part of the present invention;

[0035] Figure 6 A cross-sectional view of a switching tooth portion of the present invention;

[0036] Figure 7 It is a schematic diagram of the cooperation between the eccentric roller and the switching tooth of the present invention.

[0037] In the figure: 1. Plier handle; 2. Fixed handle; 3. Movable handle; 4. Probe tube; 5. Connecting column; 6. Fixed jaw; 7. Movable jaw; 8. Rotating part; 9. Guide wire; 10. Rotating disc; 11. Connecting block; 12. Inner cavity; 13. Through groove; 14. Sealing plate; 15. Connecting rod; 16. Base 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; 26. Positioning disc; 27. Card slot; 28. Vertical plate; 29. Support plate; 30. Card 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 implementation manner

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] Embodiment 1:

[0040] Please refer to Figures 1-7 , a laparoscopic grasping forceps with a controllable channel, including a plier handle 1 and a probe tube 4 fixedly installed on the plier handle 1. The front end of the probe tube 4 is fixedly installed with a connecting column 5. The front end of the connecting column 5 is fixedly installed with a fixed jaw 6, and a movable jaw 7 is movably installed. As Figure 2 shown, the rear end of the movable jaw 7 is fixedly installed with a rotating part 8. The rotating part 8 is rotatably installed in the installation groove through a thin shaft. The installation groove is opened on the connecting column 5. A torsion spring I (not shown in the figure) is also provided at the connection between the thin shaft and the installation groove. The torsion spring I is used to provide a rotational force for the movable jaw 7 in the direction towards the fixed jaw 6;

[0041] In this embodiment, a guide wire 9 is also provided. One end is connected to the rotating part 8, and the other end extends into the plier handle 1. Thus, by pulling the guide wire 9, the rotating part 8 can be pulled to rotate, and the movable jaw 7 opens. At this time, the torsion spring I is compressed; conversely, when the guide wire 9 is released, the movable jaw 7 can close again and cooperate with the fixed jaw 6 to achieve the clamping function.

[0042] As Figure 4As shown, the other end of the guide wire 9 extends into the forceps handle 1 and is fixedly connected to the rotating disk 10. The rotating disk 10 is rotatably mounted in the forceps handle 1 through a disk shaft. The side of the rotating disk 10 is connected to the movable handle 3 through a connecting block 11. In this embodiment, a second torsion spring is also provided at the connection between the disk shaft and the inner wall of the forceps handle 1. The second torsion spring is used to provide a counterclockwise rotational force for the rotating disk 10;

[0043] Pressing the movable handle 3 can drive the rotation of the rotating disk 10. When the rotating disk 10 rotates, the second torsion spring is compressed and the guide wire 9 is pulled, so that the movable jaw 7 opens; conversely, after releasing the movable handle 3, the movable handle 3, the rotating disk 10 and the movable jaw 7 can all return to their original positions.

[0044] Thus, in this embodiment, by pressing the movable handle 3, the opening of the movable jaw 7 can be controlled. When the movable handle 3 is released, the movable jaw 7 can return to its original position and cooperate with the fixed jaw 6 to achieve clamping.

[0045] As Figure 1 shown, a fixed handle 2 is also installed on the forceps handle 1 for easy grasping and operation.

[0046] As Figure 2 and Figure 3 shown, an inner cavity 12 is formed inside the fixed jaw 6, and a through groove 13 is formed on the outer wall of the fixed jaw 6. The through groove 13 is communicated with the inner cavity 12;

[0047] A rotating tube 22 is also provided. One end is communicated with the inner cavity 12, and the other end passes through the connecting column 5 and the probe tube 4 and extends into the forceps handle 1, and is movably communicated with the suction tube 34 or the supply tube 36. In this embodiment, a suction joint 35 and a supply joint 37 are fixedly installed at the top of the forceps handle 1. The suction tube 34 and the supply tube 36 are respectively connected to the suction joint 35 and the supply joint 37. The suction joint 35 is used to connect a negative pressure device, and the supply joint 37 is used to connect a flushing liquid supply device;

[0048] When the rotating tube 22 is communicated with the suction tube 34, through the suction joint 35 and the negative pressure device, the surgical smoke or effusion can be sucked out to ensure a clear view of the surgical area; when the rotating tube 22 is communicated with the supply tube 36, through the supply joint 37 and the flushing liquid supply device, the flushing function can be realized to remove blood or tissue fragments and optimize the surgical operation conditions;

[0049] 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. Specifically, as Figures 4-6 shown:

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] like Figure 5 As 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.

[0055] 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;

[0056] 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.

[0057] 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.

[0058] 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;

[0059] 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;

[0060] See also Figure 7 When 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;

[0061] 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.

[0062] Embodiment 2:

[0063] 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:

[0064] S1. Hold the pliers handle 1 and insert the fixed jaw 6 and the movable jaw 7 into the operation area;

[0065] S2. Turn the dial 25 to connect the suction pipe 34 or the supply pipe 36 to the rotating pipe 22. At the same time, open the through slot 13 to perform gas-liquid suction or flushing with the flushing liquid;

[0066] S3. After the operation is completed, turn the dial 25 to reset, disconnect the connection between the rotating pipe 22 and the suction pipe 34 or the supply pipe 36, and at the same time close the through slot 13.

[0067] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. 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, 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); A rotating tube (22), 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); 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); The bottom of the closing plate (14) is connected to the bottom plate (16) via a connecting rod (15), and the bottom plate (16) can be pushed upward; It also includes a drive shaft (20) rotatably mounted in the inner cavity (12), and an eccentric roller (19) is fixedly mounted on the drive shaft (20) and is capable of pushing the bottom plate (16) to move upward; 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).

2. The laparoscopic grasping forceps with controllable channels according to claim 1, characterized in that: 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. The laparoscopic grasping forceps with controllable channels according to claim 1, characterized in that: 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).

4. The laparoscopic grasping forceps with controllable channels according to claim 3, characterized in that: 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).

5. The laparoscopic grasping forceps with controllable channels according to claim 1, characterized in that: 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).

6. The laparoscopic grasping forceps with controllable channels according to claim 3, characterized in that: 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).

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