Laparoscope operating forceps capable of efficiently exhausting smoke

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a pair of efficient smoke exhaust laparoscope operating forceps which comprises a forceps head, a hollow forceps tube, a mounting seat, a movable handle and a fixed handle, the movable handle and the fixed handle are mounted on the mounting seat and hinged with each other, a plurality of smoke suction holes are formed in the hollow forceps tube, one end of the hollow forceps tube is connected with the forceps head, and the other end of the hollow forceps tube is connected with the mounting seat. A negative pressure channel communicated with an inner cavity of the hollow forceps tube is arranged in the mounting seat, and the tail end of the negative pressure channel is connected with air exhaust equipment; the movable handle is connected with the forceps head through a pull rod assembly and controls the forceps head to be opened and closed, the pull rod assembly comprises a core rod, a core rod head and a pull rod, and the core rod is of a spiral structure and is arranged in the hollow forceps tube. Through the design of the smoke suction hole, the negative pressure channel, the smoke exhaust switch assembly and the air extractor, smoke generated by cutting of an energy instrument in the operation process can be rapidly exhausted through negative pressure air suction, the operation speed is increased, the operation risk is reduced, and the problem that the smoke influences the operation visual field is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to a laparoscopic surgical forceps with efficient smoke exhaust. Background Art

[0002] Laparoscopic surgery is a minimally invasive surgical technique. Compared with traditional open surgery, it has the characteristics of small trauma and rapid postoperative recovery. Therefore, it is widely used in surgical departments such as urology, general surgery, obstetrics and gynecology, and hepatobiliary surgery. However, due to the small surgical operation space and the inability to establish an effective air flow circulation, smoke will be generated when using bipolar surgical instruments and energy-based instruments during the operation, which will affect the surgical field of view. Once the smoke is extremely large, it will seriously affect the surgical field of view and surgical safety.

[0003] Therefore, there is an urgent need to design a laparoscopic surgical forceps that can efficiently exhaust smoke. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a laparoscopic surgical forceps with efficient smoke exhaust. Through the design of a smoke suction hole, a negative pressure channel, a smoke exhaust switch assembly and a suction device, the smoke generated by the cutting of energy instruments during the operation can be quickly exhausted by using negative pressure suction, improving the surgical speed, reducing the surgical risk, and avoiding the problem of smoke affecting the surgical field of view.

[0005] To solve the above technical problems, the utility model provides a laparoscopic surgical forceps with efficient smoke exhaust, which includes a forceps head, a hollow forceps tube, a mounting seat, and a movable handle and a fixed handle that are hinged to each other and mounted on the mounting seat. A plurality of smoke suction holes are opened on the hollow forceps tube. One end of the hollow forceps tube is connected to the forceps head, and the other end extends into the mounting seat. A negative pressure channel communicating with the inner cavity of the hollow forceps tube is provided in the mounting seat. The end of the negative pressure channel is connected to a suction device. The negative pressure channel controls the air path communication between the inner cavity of the hollow forceps tube and the suction device through a smoke exhaust switch assembly;

[0006] The movable handle is connected to the forceps head through a pull rod assembly and controls the opening and closing of the forceps head. The pull rod assembly includes a core rod, a core rod head and a pull rod. The core rod is a spiral structure and is arranged inside the hollow forceps tube. There is a gap between the core rod and the inner cavity of the hollow forceps tube. One end of the core rod is connected to the core rod head, and the other end is connected to the pull rod. The core rod head is connected to the forceps head through a linkage assembly, and the pull rod is connected to the movable handle.

[0007] Furthermore, the smoke exhaust switch assembly includes a hand pull handle, a piston and a return spring. The hand pull handle is rotatably connected to the mounting seat through a rotating shaft. An installation cavity is provided in the mounting seat. One end of the piston is arranged in the installation cavity and its outer wall fits with the inner wall of the installation cavity, and the other end extends out of the installation cavity and cooperates with the hand pull handle;

[0008] Both ends of the piston are in a closed structure. A return spring is provided between the piston and the installation cavity. A ventilation groove is formed on the outer peripheral wall of the piston. By pulling the hand handle, the piston is driven to move upward, so that the ventilation groove communicates with the negative pressure channel.

[0009] Furthermore, the pliers head includes a movable pliers head and a fixed pliers head that are hinged. The linkage assembly includes a fixed piece and a movable piece. One end of the fixed piece is fixedly connected to the fixed pliers head, and the other end is connected to one end of the movable piece through a first connecting shaft. The end of the core rod head is sleeved on the first connecting shaft, and the other end of the movable piece is connected to the movable pliers head through a second connecting shaft.

[0010] Furthermore, a runner is provided on the outer side of the hollow pliers tube. One end of the mounting seat extends into the runner and is threadedly connected to the runner.

[0011] Furthermore, a cleaning hole communicating with the inner cavity of the hollow pliers tube is formed on the hollow pliers tube, and a cleaning device is connected outside the cleaning hole.

[0012] Furthermore, a baffle is provided on the movable handle, and the end of the pull rod extends into the baffle and is connected with a stop ball.

[0013] Furthermore, a rubber pad is provided on the surface of the hand handle that contacts the piston.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. Through the design of the smoke suction hole, negative pressure channel, smoke exhaust switch assembly and air extraction device, the present utility model can quickly discharge the smoke generated by the cutting of the energy instrument during the operation by using negative pressure suction, improve the operation speed, reduce the operation risk, and avoid the problem of the smoke affecting the operation field of view.

[0016] 2. Through the design of the core rod with a spiral structure, the space between the inner cavity of the hollow pliers tube and the core rod is increased, the smoke exhaust channel is enlarged, which is convenient for the smoke to quickly enter the negative pressure channel between the inner cavity of the hollow pliers tube and the core rod, improves the smoke exhaust speed, and further improves the operation speed.

[0017] 3. Through the design of the piston and the hand handle in the smoke exhaust switch assembly, when there is smoke, the purpose of smoke exhaust can be achieved by hooking the hand handle with the index finger, without having to keep hooking, achieving the purpose of efficient and accurate smoke exhaust. And through the design of the return spring, the piston can be reset to block the air path connection between the negative pressure channel and the air extraction device.

[0018] 4. The utility model is provided with cleaning holes on the hollow forceps tube, which are communicated with its inner cavity, and a cleaning device is connected outside the cleaning holes, so that negative pressure suction or water flushing can be carried out on the inner cavity of the hollow forceps tube.

[0019] 5. The utility model is provided with a rubber pad on the hand pull handle, which can avoid hard contact with the piston, reduce the friction with the piston, and play a certain buffering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is a schematic structural diagram of the laparoscopic surgical forceps with efficient smoke exhaust of the present utility model;

[0022] Figure 2 is Figure 1 an enlarged view of area A in

[0023] Figure 3 is Figure 1 an enlarged view of area B in

[0024] In the figure: 1 - forceps head, 2 - hollow forceps tube, 3 - mounting seat, 4 - movable handle, 5 - fixed handle, 6 - smoke exhaust switch assembly, 7 - pull rod assembly, 8 - linkage assembly, 9 - runner, 11 - movable forceps head, 12 - fixed forceps head, 21 - smoke suction hole, 22 - cleaning hole, 31 - negative pressure channel, 32 - mounting cavity, 41 - baffle, 61 - hand pull handle, 62 - piston, 621 - ventilation groove, 63 - return spring, 71 - core rod, 72 - core rod head, 73 - pull rod, 74 - blocking ball, 81 - fixed piece, 82 - movable piece, 83 - first connecting shaft, 84 - second connecting shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0026] In a specific embodiment of the present utility model, as Figures 1-3As shown in the figure, a laparoscopic surgical forceps with efficient smoke exhaust includes a forceps head 1, a hollow forceps tube 2, a mounting base 3, and a movable handle 4 and a fixed handle 5 which are hinged to each other and mounted on the mounting base 3. A plurality of smoking holes 21 are formed in the hollow forceps tube 2. One end of the hollow forceps tube 2 is connected to the forceps head 1, and the other end extends into the mounting base 3. A negative pressure channel 31 communicating with the inner cavity of the hollow forceps tube 2 is provided in the mounting base 3. The end of the negative pressure channel 31 is connected with an air extraction device. The negative pressure channel 31 controls the air path communication between the inner cavity of the hollow forceps tube 2 and the air extraction device through a smoke exhaust switch assembly 6.

[0027] The movable handle 4 is connected to the forceps head 1 through a pull rod assembly 7 to control the opening and closing of the forceps head 1. The pull rod assembly 7 includes a core rod 71, a core rod head 72, and a pull rod 73. The core rod 71 is of a spiral structure and is arranged inside the hollow forceps tube 2. There is a gap between the core rod 71 and the inner cavity of the hollow forceps tube 2. One end of the core rod 71 is connected to the core rod head 72, and the other end is connected to the pull rod 73. The core rod head 72 is connected to the forceps head 1 through a linkage assembly 8, and the pull rod 73 is connected to the movable handle 4. Through the design of the core rod with a spiral structure, the space between the inner cavity of the hollow forceps tube and the core rod is increased, the smoke exhaust channel is enlarged, so that the smoke can quickly enter the negative pressure channel between the inner cavity of the hollow forceps tube and the core rod, the smoke exhaust speed is increased, and further the surgical speed is improved.

[0028] Specifically, as Figure 2 shown, the smoke exhaust switch assembly 6 includes a hand pull handle 61, a piston 62, and a return spring 63. The hand pull handle 61 is rotatably connected to the mounting base 3 through a rotating shaft. An installation cavity 32 is provided in the mounting base 3. One end of the piston 62 is arranged in the installation cavity 32 and its outer wall fits with the inner wall of the installation cavity 32, and the other end extends out of the installation cavity 32 to cooperate with the hand pull handle 61.

[0029] In this embodiment, both ends of the piston 62 are of a closed structure. A return spring 63 is provided between the piston 62 and the installation cavity 32. A ventilation groove 621 is formed on the outer peripheral wall of the piston 62. By pulling the hand pull handle 61 to drive it to push the piston 62 to move upward, the ventilation groove 621 is communicated with the negative pressure channel 31.

[0030] Specifically, a rubber pad 64 is provided on the surface of the hand pull handle 61 in contact with the piston 62, which can avoid hard contact with the piston, reduce the friction with the piston, and play a certain buffering effect.

[0031] As Figure 3 shown, the forceps head 1 includes a movable forceps head 11 and a fixed forceps head 12 which are hinged. The linkage assembly 8 includes a fixed piece 81 and a movable piece 82. One end of the fixed piece 81 is fixedly connected to the fixed forceps head 12, and the other end is connected to one end of the movable piece 82 through a first connecting shaft 83. The end of the core rod head 72 is sleeved on the first connecting shaft 83. The other end of the movable piece 82 is connected to the movable forceps head 11 through a second connecting shaft 84.

[0032] In this embodiment, a runner 9 is provided on the outer side of the hollow clamp tube 2. One end of the mounting seat 3 extends into the runner 9 and is threadedly connected to the runner 9, which can make the connection between the hollow clamp tube 2 and the mounting seat 3 more stable through the runner.

[0033] In this embodiment, a cleaning hole 22 communicating with the inner cavity is formed in the hollow clamp tube 2, and a cleaning device is connected outside the cleaning hole 22, which can clean the inner cavity of the hollow clamp tube 2 and the core rod.

[0034] Specifically, in this embodiment, a baffle 41 is provided on the movable handle 4. The end of the pull rod 73 extends into the baffle 41 and is connected with a ball stopper 74. This design can prevent the pull rod 73 from detaching from the baffle 41 and make the operation of the movable handle 4 more stable.

[0035] The working process of the present utility model is as follows:

[0036] The opening and closing of the clamp head 1 are controlled by operating the movable handle 4 with one hand. When there is smoke, hook the index finger on the hand pull handle 61, push the piston 62 to move upward to connect the ventilation groove 621 with the negative pressure channel 31. The smoke enters the inner cavity of the hollow clamp tube 2 from several smoking holes 21, then enters the piston 62 through the negative pressure channel 31 via the ventilation groove 621 and then enters the negative pressure channel 31 again, and finally the smoke is extracted by the air extraction device; when there is no smoke, the index finger can be released, and the piston 62 is reset under the action of the return spring, and the ventilation groove 621 is not connected with the negative pressure channel 31. At this time, the air extraction device does not work.

[0037] The above-disclosed is only a preferred embodiment of the present utility model, and of course, it cannot be used to limit the scope of rights of the present utility model. Therefore, equivalent changes made according to the claims of the present utility model still fall within the scope covered by the present utility model.

Claims

1. A laparoscopic surgical forceps with high efficiency smoke exhaust, characterized in that: The invention comprises a pliers head (1), a hollow pliers tube (2), a mounting seat (3), and a movable handle (4) and a fixed handle (5) which are hinged to each other and mounted on the mounting seat (3); the hollow pliers tube (2) is provided with a plurality of smoking holes (21); one end of the hollow pliers tube (2) is connected to the pliers head (1), and the other end extends into the mounting seat (3); a negative pressure channel (31) which is connected to the inner cavity of the hollow pliers tube (2) is provided in the mounting seat (3); an exhaust device is connected to the end of the negative pressure channel (31); the negative pressure channel (31) controls the air path of the inner cavity of the hollow pliers tube (2) to be connected to the exhaust device through a smoke exhaust switch assembly (6); The movable handle (4) is connected to the pliers head (1) through a pull rod assembly (7) and controls the opening and closing of the pliers head (1). The pull rod assembly (7) comprises a core rod (71), a core rod head (72) and a pull rod (73). The core rod (71) is a spiral structure and is arranged inside the hollow pliers tube (2). A gap is provided between the core rod (71) and the inner cavity of the hollow pliers tube (2). One end of the core rod (71) is connected to the core rod head (72), and the other end is connected to the pull rod (73). The core rod head (72) is connected to the pliers head (1) through a linkage assembly (8), and the pull rod (73) is connected to the movable handle (4).

2. The laparoscopic surgical forceps with high efficiency smoke exhaust according to claim 1, characterized in that: The smoke exhaust switch assembly (6) comprises a hand handle (61), a piston (62) and a return spring (63); the hand handle (61) is rotatably connected to the mounting seat (3) via a rotating shaft; a mounting cavity (32) is provided in the mounting seat (3); one end of the piston (62) is arranged in the mounting cavity (32) and its outer wall is in contact with the inner wall of the mounting cavity (32); the other end extends out of the mounting cavity (32) and cooperates with the hand handle (61); The return spring (63) is provided between the piston (62) and the mounting cavity (32), and a ventilation groove (621) is provided on the outer peripheral wall of the piston (62). By pulling the hand handle (61), the piston (62) is pushed upward, so that the ventilation groove (621) is connected with the negative pressure channel (31).

3. The laparoscopic surgical forceps with high efficiency smoke exhaust according to claim 1, characterized in that: The pliers head (1) comprises a movable pliers head (11) and a fixed pliers head (12) which are hingedly connected; the linkage assembly (8) comprises a fixed plate (81) and a movable plate (82); one end of the fixed plate (81) is fixedly connected to the fixed pliers head (12), and the other end is connected to one end of the movable plate (82) via a first connecting shaft (83); the end of the core rod head (72) is sleeved on the first connecting shaft (83), and the other end of the movable plate (82) is connected to the movable pliers head (11) via a second connecting shaft (84).

4. The laparoscopic surgical forceps with high efficiency smoke exhaust according to claim 1, characterized in that: A rotating wheel (9) is provided on the outer side of the hollow clamp tube (2), and one end of the mounting seat (3) extends into the rotating wheel (9) and is threadedly connected to the rotating wheel (9).

5. The laparoscopic surgical forceps with high efficiency smoke exhaust according to claim 1, characterized in that: The hollow clamp tube (2) is provided with a cleaning hole (22) communicating with its inner cavity, and the cleaning hole (22) is externally connected to a cleaning device.

6. The laparoscopic surgical forceps with high efficiency smoke exhaust according to claim 1, characterized in that: The movable handle (4) is provided with a baffle (41), and the end of the pull rod (73) extends into the baffle (41) and is connected to a baffle ball (74).

7. The laparoscopic surgical forceps with high efficiency smoke exhaust according to claim 2, characterized in that: A rubber pad (64) is provided on the surface of the hand handle (61) that contacts the piston (62).

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