Endoscopic surgery exhaust valve capable of controlling flow through pedal

Abstract

The utility model discloses an endoscopic surgery exhaust valve capable of controlling flow by pedaling, and relates to the technical field of medical instruments. The endoscopic surgery exhaust valve capable of controlling the flow through the pedal comprises a pedal base, a pedal cover plate is hinged to the upper portion of the pedal base, a valve assembly is arranged on the outer wall of the top of the pedal base, the valve assembly comprises a valve body, a plunger and a plunger push rod, the outer wall of the plunger is connected with the inner wall of the valve body in an inserted mode, and the plunger push rod is connected with the valve body in an inserted mode. And the plunger is inserted into the valve body and forms a rotary valve structure together with the valve body. According to the utility model, an operator can tread the pedal cover plate by feet to realize exhaust, and the angle of the pedal cover plate is changed, so that the plunger handle is pushed by the plunger push rod to change the rotation angle of the plunger, further the conduction amount of the valve body is changed, the exhaust speed of smoke in the abdominal cavity is adjusted, and the valve body can be fixed at a certain set flow; the flexibility of the operation is improved, and the practical situation in the operation process is better met.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a laparoscopic surgery exhaust valve capable of controlling flow rate by foot pedal. Background Art

[0002] During minimally invasive laparoscopic surgery, electrical equipment such as ultrasonic scalpels and electrosurgeries will generate a large amount of smoke (including aerosols), which not only seriously affects the surgical field of view, but also easily condenses on the laparoscope lens, blurring the video. Assistants often need to intermittently open the exhaust hole of the laparoscope cannula to exhaust the smoke; on the other hand, the person holding the lens also needs to frequently take out the lens and wipe it with warm saline, iodine gauze, etc. to make the video clear, which brings a lot of inconvenience to the surgeon. In addition, the smoke also contains a large amount of harmful substances, which will seriously pollute the air in the operating room and endanger the health of the operating room staff if it is directly discharged into the operating room.

[0003] After searching, the Chinese patent with the patent authorization number CN217852914U discloses a low-cost laparoscopic surgical exhaust valve that can be controlled by foot, including a foot pedal base, a foot pedal cover plate and a valve assembly, and the front end of the foot pedal cover plate is rotatably connected to the front end of the foot pedal base. The Chinese patent with the patent authorization number CN217853274U discloses a laparoscopic surgical smoke exhaust device that can be controlled by foot, including a foot pedal base, a foot pedal cover plate, the left end of the foot pedal cover plate is hinged to the left end of the foot pedal base, a spring is connected between the middle of the foot pedal cover plate and the middle of the foot pedal base, and the right end of the foot pedal base is fixedly connected to the valve assembly.

[0004] Although the above patent can realize the smoke exhaust method using a foot pedal, it requires continuous stepping on the foot pedal, and it is impossible to fix it at a set flow rate. Repeated stepping on the foot pedal during surgery may cause foot fatigue. The existing technology cannot meet the needs of more convenient, time-saving and labor-saving smoke exhaust in laparoscopic surgery. A more convenient, time-saving and labor-saving smoke filtering and exhaust device is urgently needed in clinical work. Utility Model Content

[0005] The utility model aims to provide a laparoscopic surgery exhaust valve with flow controllable by foot, which solves the technical problem that the existing technology proposed in the above background technology cannot meet the demand for more convenient, time-saving and labor-saving smoke exhaust in laparoscopic surgery.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laparoscopic surgery exhaust valve capable of controlling flow by foot pedal, comprising a foot pedal base, a foot pedal cover is hingedly connected above the foot pedal base, and a valve assembly is arranged on the top outer wall of the foot pedal base;

[0007] The valve assembly comprises a valve body, a plunger, and a plunger push rod. The outer wall of the plunger is plugged into the inner wall of the valve body. The plunger is inserted into the valve body and together with the valve body forms a rotary valve structure. An air inlet and an air outlet are respectively provided on both sides of the valve body.

[0008] The plunger includes a plunger hole and a plunger handle. The inner wall of the plunger is provided with a plunger hole, and the plunger hole penetrates the inner wall of the plunger. The outer wall of the plunger is fixedly connected to the plunger handle. The outer wall of the plunger handle is provided with a plunger push rod. The bottom outer wall of the foot cover is fixedly connected to a plunger push rod fixing pin. The end of the plunger push rod away from the plunger handle is connected to the plunger push rod fixing pin. The plunger handle is hinged by the plunger push rod and the plunger push rod fixing pin on the outer wall of the foot cover. The inner walls of the air inlet and the air outlet are respectively interspersed with an air intake hose and an air outlet hose.

[0009] Preferably, the top outer wall of the pedal base is fixedly connected with a latch seat 1 and a latch seat 2, the inner wall of the pedal cover is provided with a latch hole, a latch is inserted in the latch hole, and the pedal base is hinged to the pedal cover through the latch seat 1, the latch seat 2, the latch, and the latch hole.

[0010] Preferably, the air inlet and the air outlet are symmetrically arranged on both sides of the valve body, and the air inlet and the air outlet form a tubular structure.

[0011] Preferably, one end of the air inlet hose away from the air inlet is connected to the exhaust hole of the cannula conventionally used in laparoscopic surgery, and the exhaust hole remains open.

[0012] Preferably, one end of the air outlet hose away from the air outlet is connected to a negative pressure aspirator conventionally configured in an operating room.

[0013] Compared with the related art, the laparoscopic surgery exhaust valve provided by the utility model that can control the flow by foot has the following beneficial effects:

[0014] 1. The utility model provides a laparoscopic surgery exhaust valve with flow rate controlled by foot, which can control the discharge of gas in the abdominal cavity by foot without occupying the surgeon's palm, thereby solving the problem that laparoscopic surgery smoke affects the surgical field of view and thus affects the surgical operation.

[0015] 2. The utility model provides a laparoscopic surgical exhaust valve with flow rate controlled by foot. The surgeon can exhaust air by stepping on the foot pedal cover. By changing the angle of the foot pedal cover, the plunger push rod pushes the plunger handle to change the rotation angle of the plunger, thereby changing the conductance of the valve body, thereby adjusting the exhaust speed of abdominal smoke, and the valve can be fixed at a certain set flow rate, which improves the flexibility of the operation, is more in line with the actual situation during the operation, and provides the surgeon with a more convenient and efficient operating experience.

[0016] 2. The utility model provides a laparoscopic surgical exhaust valve with flow controllable by foot, which seeks simplicity and clarity in structural design, reduces unnecessary complex components, and makes the entire device easier to use and maintain. At the same time, this simple structure also reduces production costs and medical costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the explosion structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the valve assembly structure of the utility model.

[0019] In the figure: 1. pedal base; 11. latch seat 1; 12. latch seat 2; 2. pedal cover; 21. latch hole; 22. plunger push rod fixing pin; 3. latch; 4. valve assembly; 41. valve body; 411. air inlet; 412. air outlet; 42. plunger; 421. plunger hole; 422. plunger handle; 43. plunger push rod; 5. air inlet hose; 6. air outlet hose. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] Example:

[0022] See also Figure 1-Figure 2 The utility model provides a technical solution: a laparoscopic surgical exhaust valve capable of controlling flow by foot pedal, comprising a foot pedal base 1, a foot pedal cover plate 2 is hingedly connected above the foot pedal base 1, and a valve assembly 4 is arranged on the top outer wall of the foot pedal base 1;

[0023] The valve assembly 4 includes a valve body 41, a plunger 42, and a plunger push rod 43. The outer wall of the plunger 42 is plugged into the inner wall of the valve body 41. The plunger 42 is inserted into the valve body 41 to form a rotary valve structure together with the valve body 41. The valve body 41 is provided with an air inlet 411 and an air outlet 412 on both sides thereof.

[0024] The plunger 42 includes a plunger hole 421 and a plunger handle 422. The inner wall of the plunger 42 is provided with a plunger hole 421, and the plunger hole 421 passes through the inner wall of the plunger 42. The outer wall of the plunger 42 is fixedly connected with the plunger handle 422. The outer wall of the plunger handle 422 is provided with a plunger push rod 43. The bottom outer wall of the foot cover 2 is fixedly connected with a plunger push rod fixing pin 22. The end of the plunger push rod 43 away from the plunger handle 422 is connected to the plunger push rod fixing pin 22. The plunger handle 422 is hinged through the plunger push rod 43 and the plunger push rod fixing pin 22 on the outer wall of the foot cover 2. The inner walls of the air inlet 411 and the air outlet 412 are respectively interspersed with an air intake hose 5 and an air outlet hose 6.

[0025] In this embodiment, the device is placed on the ground for the surgeon to step on. When surgical equipment such as the electric hook and ultrasonic knife cuts tissue in the abdominal cavity and produces smoke, the surgeon can step on the pedal cover 2 with his foot, and push the plunger handle 422 and the plunger 42 to rotate through the plunger push rod 43, thereby opening the valve, so that the smoke gas in the abdominal cavity is discharged through the laparoscopic surgical cannula, the air inlet 411, the valve, and the air outlet 412.

[0026] By changing the angle of the pedal cover 2, the plunger push rod 43 pushes the plunger handle 422 to change the rotation angle of the plunger 42, thereby changing the conductance of the valve body 41 to adjust the abdominal smoke discharge speed.

[0027] Among them, the top outer wall of the pedal base 1 is fixedly connected with a latch seat 11 and a latch seat 2 12, the inner wall of the pedal cover 2 is provided with a latch hole 21, and a latch 3 is inserted in the latch hole 21. The pedal base 1 is hinged to the pedal cover 2 through the latch seat 1 11, the latch seat 2 12, the latch 3, and the latch hole 21.

[0028] In this embodiment, the latch 3 serves as a connecting piece and can pass through the latch hole 21 and be connected to the latch seat 1 11 and the latch seat 2 12 respectively. When the latch 3 is fully inserted, the pedal base 1 and the pedal cover 2 are hinged through the latch seat 1 11, the latch seat 2 12, the latch 3, and the latch hole 21. This hinged connection allows the pedal cover 2 to rotate or swing relative to the pedal base 1.

[0029] The air inlet 411 and the air outlet 412 are symmetrically arranged on both sides of the valve body 41 , and the air inlet 411 and the air outlet 412 form a tubular structure.

[0030] The end of the air inlet hose 5 away from the air inlet port 411 is connected to the exhaust hole of the cannula conventionally used in laparoscopic surgery, and the exhaust hole remains open.

[0031] The end of the air outlet hose 6 away from the air outlet 412 is connected to a negative pressure aspirator conventionally configured in an operating room.

[0032] In this embodiment, the head end of the air inlet hose 5 is connected to the exhaust hole of the sleeve conventionally used in laparoscopic surgery and the exhaust hole is kept open, and the tail end of the air outlet hose 6 is connected to the negative pressure aspirator conventionally configured in the operating room.

[0033] Working principle: When in use, place the device on the ground for the surgeon to step on, connect the head end of the air inlet hose 5 to the exhaust hole of the cannula conventionally used in laparoscopic surgery and keep the exhaust hole open, and connect the tail end of the air outlet hose 6 to the negative pressure aspirator conventionally configured in the operating room. When surgical equipment such as electric hooks and ultrasonic scalpels cut tissues in the abdominal cavity and generate smoke, the operator can step on the pedal cover 2 with the foot, and push the plunger handle 422 and the plunger 42 to rotate through the plunger push rod 43, so that the plunger hole 421 on the plunger 42 is connected with the air inlet 411 and the air outlet 412, thereby making the valve conductive, so that the smoke gas in the abdominal cavity is discharged through the laparoscopic surgical cannula, the air inlet 411, the valve, and the air outlet 412 in the abdominal cavity; by changing the angle of the pedal cover 2, the plunger push rod 43 pushes the plunger handle 422 to change the rotation angle of the plunger 42, and the area of ​​the plunger hole 421 on the plunger 42 connected with the air inlet 411 and the air outlet 412 is changed, thereby changing the conduction amount of the valve body 41, thereby realizing the adjustment of the abdominal cavity smoke discharge speed.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A laparoscopic surgery exhaust valve capable of controlling flow rate by foot pedal, comprising a foot pedal base (1), characterized in that: A pedal cover plate (2) is hingedly connected above the pedal base (1), and a valve assembly (4) is provided on the top outer wall of the pedal base (1); The valve assembly (4) comprises a valve body (41), a plunger (42), and a plunger push rod (43); the outer wall of the plunger (42) is plugged into the inner wall of the valve body (41); the plunger (42) is inserted into the valve body (41) and together with the valve body (41) forms a rotary valve structure; the valve body (41) is provided with an air inlet (411) and an air outlet (412) on both sides thereof; The plunger (42) comprises a plunger hole (421) and a plunger handle (422); the inner wall of the plunger (42) is provided with a plunger hole (421), the plunger hole (421) penetrates the inner wall of the plunger (42); the outer wall of the plunger (42) is fixedly connected to the plunger handle (422); the outer wall of the plunger handle (422) is provided with a plunger push rod (43); the outer wall of the bottom of the pedal cover (2) is fixedly connected to the plunger handle (422); A plunger push rod fixing pin (22) is provided, and one end of the plunger push rod (43) away from the plunger handle (422) is connected to the plunger push rod fixing pin (22), and the plunger handle (422) is hingedly connected to the plunger push rod (43) and the plunger push rod fixing pin (22) on the outer wall of the pedal cover (2), and the inner walls of the air inlet (411) and the air outlet (412) are respectively interspersed with an air intake hose (5) and an air outlet hose (6).

2. The laparoscopic surgery exhaust valve capable of controlling flow by foot pedal according to claim 1, characterized in that: The top outer wall of the pedal base (1) is fixedly connected with a latch seat 1 (11) and a latch seat 2 (12); the inner wall of the pedal cover (2) is provided with a latch hole (21); a latch (3) is inserted into the latch hole (21); the pedal base (1) is hinged to the pedal cover (2) via the latch seat 1 (11), the latch seat 2 (12), the latch (3), and the latch hole (21).

3. The laparoscopic surgery exhaust valve capable of controlling flow rate by foot pedal according to claim 1, characterized in that: The air inlet (411) and the air outlet (412) are symmetrically arranged on both sides of the valve body (41), and the air inlet (411) and the air outlet (412) form a tubular structure.

4. The laparoscopic surgery exhaust valve capable of controlling flow rate by foot pedal according to claim 1, characterized in that: One end of the air inlet hose (5) away from the air inlet port (411) is connected to the exhaust hole of the cannula conventionally used in laparoscopic surgery, and the exhaust hole remains open.

5. The laparoscopic surgery exhaust valve capable of controlling flow by foot pedal according to claim 1, characterized in that: One end of the air outlet hose (6) away from the air outlet (412) is connected to a negative pressure aspirator conventionally provided in an operating room.

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