An ultrasonic knife smoke exhaust pipeline system and a negative pressure suction device matched with the system

Abstract

The utility model belongs to the technical field of medical equipment, especially, relate to a kind of ultrasonic knife exhaust pipe system and a kind of negative pressure suction device matched with the system.The utility model aims at the problem that the rotatable ultrasonic knife rotation of external exhaust device in prior art drives exhaust port rotation to easily lead to the problem of the decline of suction capacity of exhaust port, provide a kind of ultrasonic knife exhaust pipe system, utilize the space of inner and outer pipe to set up a sealed exhaust cavity, and set up the rotatable and fixed state's rotating piece with exhaust hole on the outer tube that can be used for rotating adjustment forceps head outside exhaust cavity, so that exhaust hole can always try to be located in the uppermost, smoke is sucked into exhaust cavity through exhaust hole and is sucked away by negative pressure smoke suction pipe arranged in exhaust cavity, improve exhaust effect.The utility model further provides a kind of negative pressure suction device matched with the system, prevents back suction by setting check valve.

Description

Technical Field

[0001] This utility model belongs to the field of medical equipment technology, and in particular relates to an ultrasonic scalpel smoke exhaust pipeline system and a negative pressure suction device that works in conjunction with the system. Background Technology

[0002] An ultrasonic scalpel uses high-energy ultrasound to cut internal human tissue, generating a large amount of smoke during the process. Some ultrasonic scalpels have an integrated smoke extraction design, while others use an external negative pressure suction device. The smoke tends to rise above the cutting area, so the external negative pressure suction device typically has a smoke extraction port located at the upper end of the outer tube near the scalpel head, connected to the external device via a cable. However, some ultrasonic scalpels are designed to rotate, allowing relative rotation between the handle and the outer tube. This causes the smoke extraction port to rotate downwards, preventing effective smoke extraction from above.

[0003] For example, a Chinese utility model patent application discloses an ultrasonic scalpel smoke extraction aid [application number: 202320063461.8]. This utility model includes an extraction tube installed on the handle and a negative pressure pump detachably installed on the handle or hilt via a mounting bracket. The negative pressure pump and the extraction tube are connected by a conduit. The extraction tube includes a tube body and several first clamps. The inner wall of the tube body is provided with support members. The tube body is fixed by the first clamps and sleeved on the surface of the handle. One end of the tube body near the handle is provided with a flexible sealing gasket made of rubber or silicone. The two sides of the tube body are bent inward to form support strips. By installing the extraction tube on the handle and detachably installing the negative pressure pump on the handle or hilt via the mounting bracket, the ultrasonic scalpel that does not currently have smoke extraction function can have the effect of smoke extraction. Furthermore, the handle can be exposed by unfolding the tube body, which facilitates cleaning the stains left on the surface of the handle after the smoke passes through it. The unfolded tube body also facilitates cleaning of the tube body itself.

[0004] The exhaust port of this utility model does not have a rotation function, and therefore cannot be well matched with the smoke extraction function of an ultrasonic scalpel that has a rotating outer tube. Utility Model Content

[0005] The purpose of this invention is to address the above-mentioned problems by providing an ultrasonic scalpel exhaust pipe system that reduces unilateral friction and increases overall flow rate through symmetrical compression of the flexible tube.

[0006] This invention includes an inner tube, an outer tube, and a housing. The inner tube contains an ultrasonic scalpel head and a scalpel rod assembly connected to each other. One end of the ultrasonic scalpel head extends outside the inner tube, and the other end is fixedly connected to the housing via the scalpel rod assembly. The outer tube is sleeved outside the inner tube, and a smoke exhaust cavity exists between the inner and outer tubes. A negative pressure smoke extraction pipe located outside the housing is connected to the smoke exhaust cavity. The invention further includes a smoke exhaust structure located on the outer tube near the ultrasonic scalpel head. This smoke exhaust structure is rotatable relative to the outer tube and has at least one smoke exhaust hole connected to the smoke exhaust cavity.

[0007] Preferably, the smoke exhaust structure is sleeved on the outer pipe, and the outer pipe has smoke exhaust through holes that are evenly distributed in the circumference.

[0008] Preferably, the smoke exhaust structure includes a rotating component and a fixed component. The smoke exhaust hole is located on the rotating component, and the fixed component is fixed to the outside of the outer tube. The rotating component is rotatably nested on the outside of the outer tube. The rotating component and the fixed component are rotatably connected. The fixed component can lock / release the rotating component to its rotatable state.

[0009] Preferably, the fixing member includes a front fixing member and a rear fixing member, and the rotating member is clamped between the front fixing member and the rear fixing member. The rotating member is provided with a movable blocking structure that can limit the engagement with the front fixing member / rear fixing member.

[0010] Preferably, the rear fixing member is provided with circumferentially evenly distributed limiting holes, and the blocking structure includes a spring and a limiting ball, wherein the limiting ball is engaged with the limiting hole to form a limiting fit.

[0011] Preferably, the rear fixing member is provided with circumferentially evenly distributed limiting holes, and the blocking structure includes a slidable blocking post, which slides into the limiting hole to form a limiting fit.

[0012] Preferably, the negative pressure smoke inlet is located on the side of the negative pressure smoke inlet near the ultrasonic scalpel head. The negative pressure smoke inlet is located inside or at the edge of the exhaust cavity, and the negative pressure smoke inlet is fixed to the outer wall of the inner tube.

[0013] Preferably, the inner tube is provided with two sealing rings, and the outer tube and the inner tube squeeze the sealing rings to form a smoke exhaust cavity.

[0014] This utility model also provides a negative pressure suction device connected to the above-mentioned ultrasonic scalpel smoke exhaust pipeline system, including a negative pressure suction device, a negative pressure suction device pre-canister, an exhaust pipe and a suction pipe. One end of the exhaust pipe is connected to the negative pressure smoke exhaust pipe and the other end is connected to the negative pressure suction device pre-canister. The negative pressure suction device pre-canister and the negative pressure suction device are connected through the suction pipe.

[0015] Preferably, the discharge pipe and the negative pressure smoke pipe are connected by a one-way valve.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] This invention features a rotatable smoke exhaust structure with a smoke exhaust port on the outer tube. This ensures that when the doctor uses the rotation function to adjust the orientation of the forceps head, the smoke exhaust port is always facing upwards by rotating the smoke exhaust structure, thus achieving the best smoke extraction effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall ultrasonic scalpel exhaust duct system.

[0019] Figure 2 for Figure 1 Another perspective illustration;

[0020] Figure 3 for Figure 2 AA section view;

[0021] Figure 4 for Figure 3 Enlarged view of a specific area;

[0022] Figure 5 Exploded view of the ultrasonic scalpel exhaust duct system;

[0023] Figure 6 This is a schematic diagram of a negative pressure suction device;

[0024] Figure 7 Schematic diagram of the rotating component;

[0025] In the diagram: Inner tube 1, Outer tube 2, Housing 3, Ultrasonic scalpel head 4, Scalpel rod assembly 5, Smoke exhaust cavity 6, Bearing 7, Negative pressure smoke inlet 8, Smoke exhaust structure 9, Negative pressure smoke exhaust pipe 10, Sealing ring 11, Negative pressure suction device 12, Negative pressure suction device front tank 13, Discharge pipe 14, Suction pipe 15, Smoke exhaust through hole 21, Rotating component 91, Fixing component 92, Barrier structure 911, Front fixing component 921, Fixing component 922, Spring 9111, Limiting ball 9112, Limiting hole 9221. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] This utility model includes an ultrasonic scalpel smoke exhaust pipeline system, such as Figure 1-5As shown in Figure 7, the device includes an inner tube 1, an outer tube 2, and a housing 3. The inner tube 1 is also equipped with an ultrasonic scalpel head 4 and a scalpel rod assembly 5 connected to each other. One end of the ultrasonic scalpel head 4 extends outside the inner tube 1, and the other end is fixedly connected to the housing 3 through the scalpel rod assembly 5. The outer tube 2 is sleeved outside the inner tube 1, and there is a smoke exhaust cavity 6 between the inner tube 1 and the outer tube 2. A negative pressure smoke extraction pipe 10 located outside the housing 3 is connected to the smoke exhaust cavity 6. The inventive point of this utility model is that it also includes a smoke exhaust structure 9 located on the side of the outer tube 2 near the ultrasonic scalpel head 4. The smoke exhaust structure 9 can rotate relative to the outer tube 2. The smoke exhaust structure 9 is provided with at least one smoke exhaust hole 7, and the smoke exhaust hole 7 is connected to the smoke exhaust cavity 6.

[0028] In use, the user first adjusts the orientation of the clamp head through the outer tube 2, then rotates the smoke exhaust structure 9 so that the smoke exhaust hole 7 is as close to the top as possible. The ultrasonic scalpel is then activated, and the smoke generated during cutting floats upward. The negative pressure suction pipe 10 generates negative pressure in the smoke exhaust cavity 6, and the smoke enters the smoke exhaust cavity 6 through the smoke exhaust hole 7 and is sucked away by the negative pressure suction pipe 10.

[0029] Preferred, such as Figure 5 As shown, the smoke exhaust structure 9 is fitted onto the outer pipe 2, and the outer pipe 2 has circumferentially evenly distributed smoke exhaust holes 21 so that the negative pressure smoke extraction pipe 10 can be better concealed inside.

[0030] For ease of disassembly and assembly, such as Figure 5 The smoke exhaust structure 9 shown includes a rotating component 91 and a fixing component 92. The smoke exhaust hole 7 is located on the rotating component 91. The fixing component 92 is fixed to the outside of the outer tube 2. The rotating component 91 is rotatably nested on the outside of the outer tube 2. The rotating component 91 and the fixing component 92 are rotatably connected. The fixing component 92 can lock / release the rotating component 91 to the rotatable state.

[0031] Preferred, such as Figure 4 As shown, the fixing member 92 includes a front fixing member 921 and a rear fixing member 922. The rotating member 91 is clamped between the front fixing member 921 and the rear fixing member 922 to prevent the rotating member 91 from sliding axially. The rotating member 91 is provided with a movable blocking structure 911 that can limit the engagement with the front fixing member 921 / rear fixing member 922.

[0032] Preferably, the rear fixing member 922 is provided with circumferentially evenly distributed limiting holes 9221, and the blocking structure 911 includes a spring 9111 and a limiting ball 9112. The limiting ball 9112 is inserted into the limiting hole 9221 to form a limiting fit, thereby limiting the rotation of the rotating member 91.

[0033] Of course, the rear fixing member 922 can also be provided with circumferentially evenly distributed limiting grooves. The blocking structure includes a sliding blocking post, which slides into the limiting groove to form a limiting fit, that is, the pin structure forms the effect of limiting the rotation of the rotating member 91.

[0034] Specifically, the negative pressure smoke extraction port 8 is located on the side of the negative pressure smoke extraction tube 10 near the ultrasonic scalpel head 4. The negative pressure smoke extraction port 8 is located inside the smoke exhaust cavity 6 or at the edge of the smoke exhaust cavity 6, such as... Figure 5 As shown, the negative pressure smoking tube 10 is fixed to the outer wall of the inner tube 1.

[0035] Preferred, such as Figure 3-5 As shown, the inner tube 1 has two sealing rings 11 on its outer wall. The outer tube 2 and the inner tube 1 squeeze the sealing rings 11 to form a smoke exhaust cavity 6, so as to prevent smoke from penetrating into the ultrasonic surgical instrument and causing pollution. The negative pressure smoke extraction tube 10 can pass through the sealing rings 11 or be buried.

[0036] This utility model provides a negative pressure suction device, such as Figure 6 As shown, the system is compatible with the ultrasonic scalpel smoke exhaust system described above, including a negative pressure aspirator 12, a negative pressure aspirator pre-canister 13, an exhaust pipe 14, and a suction pipe 15. One end of the exhaust pipe 14 is connected to the negative pressure smoke exhaust pipe 10, and the other end is connected to the negative pressure aspirator pre-canister 13. The negative pressure aspirator pre-canister 13 and the negative pressure aspirator 12 are connected through the suction pipe 15.

[0037] Preferably, the discharge pipe 14 and the negative pressure smoke extraction pipe 10 are connected by a one-way valve to prevent backflow of smoke (the one-way valve is not shown in the figure).

[0038] The working principle of this utility model is as follows: The user first adjusts the orientation of the pliers head through the outer tube 2. At this time, the smoke exhaust hole 7 on the rotating part 91 may no longer face upwards as the outer tube 2 rotates. Rotating the rotating part 91, the presence of the front fixing part 921 and the rear fixing part 922 ensures that it can only rotate in a plane perpendicular to the outer tube 2. For example... Figure 4As shown, the preferred mechanism for limiting rotation in this invention is a spring 9111 and a limiting ball 9112. The limiting ball 9112 is fixed to the rotating part 91 by the spring 9111. Only a small part of the limiting ball 9112 is inserted into the limiting hole 9221. This combination allows the limiting ball 9112 to disengage from the current limiting hole 9221 and rotate into the next hole when the rotating part 91 is rotated forcefully, until the exhaust hole 7 is positioned as high as possible. When the ultrasonic scalpel is activated, the smoke generated during cutting rises. The negative pressure suction pipe 10 generates negative pressure in the exhaust cavity 6. The smoke enters the exhaust cavity 6 through the exhaust hole 7 and is sucked away by the negative pressure suction pipe 10 from the negative pressure suction port 8, entering the discharge pipe 14. The presence of the one-way valve ensures that backflow will not occur. The smoke passes through the discharge pipe 14 and is buffered by the negative pressure suction device pre-canister 13 before being sucked away by the negative pressure suction device 12.

[0039] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0040] Although this document frequently uses terms such as inner tube 1, outer tube 2, housing 3, ultrasonic scalpel head 4, scalpel rod assembly 5, exhaust cavity 6, exhaust hole 7, negative pressure smoke inlet 8, exhaust structure 9, negative pressure smoke pipe 10, sealing ring 11, negative pressure suction device 12, negative pressure suction device pre-canister 13, discharge pipe 14, suction pipe 15, exhaust through hole 21, rotating part 91, fixing part 92, blocking structure 911, front fixing part 921, fixing part 922, spring 9111, limiting ball 9112, limiting hole 9221, etc., the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. An ultrasonic scalpel smoke exhaust pipeline system, comprising an inner tube (1), an outer tube (2), and a housing (3), wherein the inner tube (1) is further provided with an ultrasonic scalpel head (4) and a scalpel rod assembly (5) connected to each other, one end of the ultrasonic scalpel head (4) extends to the outside of the inner tube (1), and the other end is fixedly connected to the housing (3) through the scalpel rod assembly (5), the outer tube (2) is sleeved outside the inner tube (1), and a smoke exhaust cavity (6) is provided between the inner tube (1) and the outer tube (2), and a negative pressure smoke extraction pipe (10) located outside the housing (3) is connected to the smoke exhaust cavity (6), characterized in that: It also includes a smoke exhaust structure (9) located on the side of the outer tube (2) near the ultrasonic scalpel head (4). The smoke exhaust structure (9) can rotate relative to the outer tube (2). The smoke exhaust structure (9) is provided with at least one smoke exhaust hole (7), which is connected to the smoke exhaust cavity (6).

2. The ultrasonic scalpel smoke exhaust duct system as described in claim 1, characterized in that: The smoke exhaust structure (9) is fitted onto the outer pipe (2), and the outer pipe (2) has smoke exhaust through holes (21) evenly distributed in the circumference.

3. The ultrasonic scalpel smoke exhaust duct system as described in claim 2, characterized in that: The smoke exhaust structure (9) includes a rotating part (91) and a fixed part (92). The smoke exhaust hole (7) is located on the rotating part (91). The fixed part (92) is fixed to the outside of the outer tube (2). The rotating part (91) is rotatably nested on the outside of the outer tube (2). The rotating part (91) and the fixed part (92) are rotatably connected. The fixed part (92) can lock / release the rotating part (91) to the rotatable state.

4. The ultrasonic scalpel smoke exhaust duct system as described in claim 3, characterized in that: The fixing member (92) includes a front fixing member (921) and a rear fixing member (922), and a rotating member (91) is clamped between the front fixing member (921) and the rear fixing member (922). The rotating member (91) is provided with a movable blocking structure (911) that can limit the engagement between the front fixing member (921) and the rear fixing member (922).

5. The ultrasonic scalpel smoke exhaust duct system as described in claim 4, characterized in that: The rear fixing member (922) is provided with circumferentially evenly distributed limiting holes (9221), and the blocking structure (911) includes a spring (9111) and a limiting ball (9112). The limiting ball (9112) is inserted into the limiting hole (9221) to form a limiting fit.

6. The ultrasonic scalpel smoke exhaust duct system as described in claim 5, characterized in that: The rear fixing member (922) is provided with circumferentially evenly distributed limiting grooves, and the blocking structure includes a slidable blocking post, wherein the limiting groove slides into the limiting hole to form a limiting fit.

7. The ultrasonic scalpel smoke exhaust duct system as described in claim 1, characterized in that: The negative pressure smoke inlet (8) is located on the side of the negative pressure smoke inlet (10) near the ultrasonic scalpel head (4). The negative pressure smoke inlet (8) is located inside the smoke exhaust cavity (6) or at the edge of the smoke exhaust cavity (6). The negative pressure smoke inlet (10) is fixed to the outer wall of the inner tube (1).

8. The ultrasonic scalpel smoke exhaust duct system as described in claim 7, characterized in that: The inner tube (1) is provided with two sealing rings (11), and the outer tube (2) and the inner tube (1) squeeze the sealing rings (11) to form a smoke exhaust cavity (6).

9. A negative pressure suction device, compatible with the ultrasonic scalpel smoke exhaust pipeline system of claim 1, characterized in that: It includes a negative pressure suction device (12), a negative pressure suction device pre-canister (13), an exhaust pipe (14), and a suction pipe (15). One end of the exhaust pipe (14) is connected to the negative pressure smoking pipe (10), and the other end is connected to the negative pressure suction device pre-canister (13). The negative pressure suction device pre-canister (13) and the negative pressure suction device (12) are connected through the suction pipe (15).

10. The negative pressure suction device as described in claim 9, characterized in that: The discharge pipe (14) and the negative pressure smoke pipe (10) are connected by a one-way valve.

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