Electrocoagulation flushing and sucking device

Abstract

The electrocoagulation flushing and sucking device comprises a shell, the shell comprises a gun body part and a handle part, a conducting rod is arranged at the front end of the gun body part, the periphery of the conducting rod is sleeved with an insulating layer, an electrocoagulation working head is arranged at the front end of the conducting rod, the electrocoagulation working head extends out of the front end of the insulating layer, the conducting rod is hollow, and a flushing pipe is arranged in the conducting rod in a sleeved mode. A suction flushing device and an electrocoagulation and electroresection device are arranged in the shell, a conductive part and a connecting part are arranged at the rear end of the conductive rod, the conductive part is electrically connected with the electrocoagulation and electroresection device, and the suction flushing device comprises a three-way connecting pipe and a flushing mechanism. The three-way connecting pipe comprises a first pipe opening connected with the connecting part, a second pipe opening connected with the flushing mechanism and a third pipe opening used for being connected with a negative pressure suction mechanism, the flushing pipe penetrates through the first pipe opening and the second pipe opening to be connected with the flushing mechanism, and a suction pipe used for being connected with the negative pressure suction mechanism is arranged at the rear end of the gun body part. And the suction tube is connected with the third tube orifice through a connecting pipeline and is provided with an adjusting switch.

Description

Technical Field

[0001] The invention belongs to the field of medical devices, and in particular relates to an electrocoagulation flushing and aspiration device. Background Art

[0002] In minimally invasive laparoscopic surgery, tissue electrocoagulation, hemostasis, and surgical field cleanliness are key components of surgical performance, safety, and efficiency. Current clinical practice utilizes electrocoagulation cutters and irrigation and aspiration devices as separate instruments, leading to significant operational flaws.

[0003] Traditional surgery requires frequent switching of electrocoagulation cutters and irrigation suction devices, and a single replacement takes about 1.5-3 seconds (Journal of Laparoscopic Surgery 2023 Intraoperative Motion Analysis Study). Especially in emergency hemostasis scenarios, delays may increase bleeding by 20-40 ml (data from the Chinese Journal of Surgery). In addition, if two instruments are used at the same time, more surgical channels will be occupied (such as laparoscopic trocars), making the operating space more difficult to expose and affecting surgical operations. In addition, traditional instruments cannot achieve synchronous operation of electrocoagulation hemostasis and irrigation suction, resulting in continuous bleeding in the tissue wound during the time interval when the suction device is replaced with the electrocoagulation device, which affects wound observation and operation difficulties, affecting effectiveness and accuracy. Furthermore, electrocoagulation smoke (mainly water vapor and fat particles) reduces the clarity of the laparoscopic image by 60-70% (image grayscale value analysis), and traditional replacement instruments require 3-5 seconds to restore the field of view by sucking out the smoke.

[0004] While there are attempts at integration on the market (such as two-in-one "coagulation-suction" devices), these devices generally suffer from the following drawbacks: Suction and irrigation share a single tube and channel, requiring intermittent use of both functions. Flushing cannot be performed while suction is ongoing, significantly limiting their application scenarios. Furthermore, existing irrigation mechanisms utilize laminar or drip flow patterns, lacking the targeted debridement capabilities optimized by fluid dynamics. This results in high irrigation volumes without adequate flushing of the target sites.

[0005] Aiming at the above-mentioned industry pain points, the present invention breaks through the limitations of traditional "split" and "shared pipeline" designs. Through the four core technologies of double-tube coaxial fluid coupling, middle three-way topology, mechanical pressurized jet and rotating conductive linkage, it fills the technical gap of "dynamic collaborative debridement-hemostasis-control" in the minimally invasive field, providing key equipment support for precise minimally invasive surgery. Summary of the Invention

[0006] In summary, in order to overcome the deficiencies of the prior art, the present invention provides an electrocoagulation irrigation and aspiration device that integrates electrocoagulation cutting, jet irrigation and aspiration.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electrocoagulation flushing and aspiration device, comprising a shell, the shell comprising a gun body and a handle, a conductive rod is provided at the front end of the gun body, an insulating layer is provided at the periphery of the conductive rod, an electrocoagulation working head is provided at the front end of the conductive rod, the conductive rod is hollow, a flushing tube is provided inside the conductive rod, a suction channel is formed by the gap between the inner wall of the conductive rod and the outer wall of the flushing tube, a suction flushing device and an electrocoagulation and electric cutting device are provided in the shell, a conductive part for connecting to the electrocoagulation and electric cutting device and a connecting part for connecting to the suction flushing device are provided at the rear end of the conductive rod, the conductive part is connected to the The electrocoagulation and electrocuting device is electrically connected, and the conductive part is arranged between the connecting part and the insulating layer. The suction and flushing device includes a three-way connecting pipe and a flushing mechanism. The three-way connecting pipe includes a first pipe mouth connected to the connecting part, a second pipe mouth connected to the flushing mechanism and a third pipe mouth for connecting to a negative pressure suction mechanism. The third pipe mouth is arranged between the first pipe mouth and the second pipe mouth, and the flushing pipe passes through the first pipe mouth and the second pipe mouth and is connected to the flushing mechanism. The rear end of the gun body is provided with a suction pipe for connecting to the negative pressure suction mechanism. The suction pipe and the third pipe mouth are connected by a connecting pipe and are provided with an adjustment switch for controlling the size of the suction force.

[0008] By adopting the above technical solution, compared with the existing electrocoagulation flushing and suction devices that must be switched between flushing and suction, this technical solution adopts a double-tube method. The flushing tube is arranged in the conductive rod, and suction is performed through the gap between the flushing tube and the inner wall of the conductive rod, and flushing is performed through the flushing tube, thereby realizing the simultaneous use of two functions, flushing and suctioning at the same time, cleaning the surgical field in real time, and improving operation accuracy. At the same time, the gun-type design is adopted, which is convenient for users to operate with one hand. Multiple functions such as suction, flushing, electrocoagulation and electrocuting can be achieved through one instrument, avoiding frequent replacement of instruments and easy operation. During the electrocuting process, synchronous flushing can flush open the tissue gap, so that the electrocoagulation working head can more accurately expose the target structure, improving cutting efficiency, and at the same time, the suction system can be cleared in time to reduce secondary bleeding; the size of the attraction can be controlled by turning the adjustment switch, and precise control is achieved, making it more convenient and stable to use.

[0009] This embodiment is further configured as follows: the flushing mechanism includes a pressing piece, a connecting pipe, a water inlet pipe and a pressure one-way valve controlled by the pressing piece, the connecting pipe includes a water outlet end connected to the flushing pipe through a connecting pipe and a water inlet end connected to the water inlet pipe, the water inlet pipe includes a water inlet for connecting to the flushing liquid, the water inlet is arranged at the rear end of the shell, the pressure one-way valve is arranged in the connecting pipe, the pressing piece includes a pressing part arranged at the front end of the handle part and a gas pressure rod one end of which is arranged in the connecting pipe.

[0010] By adopting the above technical solution, the pressing part is manually pressed, and the air pressure rod drives the piston to compress the liquid in the connecting pipe to generate high pressure, so that the pressure one-way valve opens the water outlet end, and the flushing liquid is transmitted from the connecting pipe to the flushing pipe. When the pressing part is released, the air pressure rod automatically resets under the action of the spring to generate suction, and then water is sucked from the water inlet pipe into the connecting pipe from the water inlet end. At this time, the spring supports the valve body to prevent backflow. Compared with the existing electrocoagulation flushing and suction device, the existing water output is closer to flowing water rather than flushing water. Due to the design inside the connecting pipe, the pressing part is operated so that the water output from the flushing pipe has a certain air pressure, so that the water output from the flushing pipe forms a jet under the action of pressure, which has more efficient flushing efficiency and effect. At the same time, flushing can quickly reduce the local high temperature generated by electrocoagulation, and the water output is in the form of a jet, which is more targeted rather than scattered outflow.

[0011] This embodiment further provides that: the water inlet pipe port is provided with a one-way valve.

[0012] By adopting the above technical solutions, zero backflow can be achieved, improving the safety and cleanliness of the operation.

[0013] This embodiment further provides: the first pipe opening is provided with a first sealing plug, the first sealing plug is provided with a through hole adapted to the connecting portion, the second pipe opening is provided with a second sealing plug, the second sealing plug is provided with a through hole adapted to the flushing pipe.

[0014] By adopting the above technical solution, the sealing between the first pipe opening and the second pipe opening of the three-way connecting pipe is strengthened, so that the suction of the third pipe opening is more stable.

[0015] This embodiment further provides that: a one-way valve is provided between the third pipe opening and the suction pipe.

[0016] By adopting the above technical solution, suction reflux can be avoided and the safety and cleanliness of the operation can be improved.

[0017] This embodiment further provides: the electrocoagulation and electrocuting device includes a control button, a contact is provided at the rear end of the control button, a circuit board and a power supply line connected to the circuit board are provided behind the control button, and the power supply line is electrically connected to the conductive rod.

[0018] By adopting the above technical solution, the control buttons respectively control the electrocoagulation and electrocuting operations.

[0019] This embodiment further provides that: the front end of the electrocoagulation work head is provided with a cut surface, and the side wall of the electrocoagulation work head is provided with a triangular incision.

[0020] By adopting the above technical solution, the electrocoagulation working head adopts a sloped triangular design, which will not block the line of sight and is more convenient for "scraping and suction" operations. The side wall is provided with a triangular incision to increase the water absorption area.

[0021] This embodiment further provides that: the electrocoagulation and electrocuting device further includes an elastic conductive sheet abutting against the conductive portion, and the elastic conductive sheet is connected to the power supply line.

[0022] By adopting the above technical solution, compared with the fixed line, in this technical solution, the conductive rod contacts the elastic conductive sheet when rotating, and the contact is stable. At the same time, the power supply line is avoided from being entangled. The structure is simple and the use is convenient and stable.

[0023] This embodiment is further configured as follows: a rotating wheel for driving the conductive rod to rotate is provided at the front end of the gun body, and the connecting portion is rotatably connected to the first pipe mouth.

[0024] By adopting the above technical solution, the rotating wheel can be conveniently operated with one finger, and the cutting direction of the electrocoagulation working head can be controlled by the rotating wheel, thereby facilitating electrocoagulation and electrocuting operations.

[0025] The examples describe specific embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural diagram of an embodiment of the present invention.

[0027] Figure 2 This is a diagram of the internal structure of an embodiment of the present invention.

[0028] Figure 3 It is a partial cross-sectional view of an embodiment of the present invention.

[0029] Figure markings: 1. Shell, 11. Gun body, 12. Handle, 2. Conductive rod, 21. Electrocoagulation working head, 22. Conductive part, 23. Connecting part, 3. Insulating layer, 4. Flushing tube, 5. Suction and flushing device, 51. Three-way connecting tube, 511. First pipe opening, 512. Second pipe opening, 513. Third pipe opening, 52. Flushing mechanism, 521. Pressing piece, 522. Connecting tube, 523. Water inlet pipe, 5231. Water inlet, 53. Suction tube, 54. Adjustment switch, 6. Electrocoagulation and electrocuting device, 61. Control button, 611. Contact, 62. Circuit board, 64. Elastic conductive sheet, 7. Rotating wheel. DETAILED DESCRIPTION

[0030] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

[0031] See attached Figure 1-3, the present embodiment discloses an electrocoagulation flushing and aspirator, comprising a shell 1, the shell 1 comprising a gun body 11 and a handle 12, a conductive rod 2 is provided at the front end of the gun body 11, an insulating layer 3 is provided on the periphery of the conductive rod 2 (the insulating layer 3 is formed by coating an insulating material), an electrocoagulation working head 21 is provided at the front end of the conductive rod 2, the conductive rod 2 is hollow, a flushing tube 4 is sleeved inside the conductive rod 2, a suction channel is formed by the gap between the inner wall of the conductive rod 2 and the outer wall of the flushing tube 4, a suction channel is formed, a suction flushing device 5 and an electrocoagulation and electric cutting device 6 are provided in the shell 1, a conductive part 22 for connecting to the electrocoagulation and electric cutting device 6 and a connecting part 23 for connecting to the suction flushing device 5 are provided at the rear end of the conductive rod 2, the conductive part 22 is electrically connected to the electrocoagulation and electric cutting device 6, and the conductive part 22 is provided at Between the connecting part 23 and the insulating layer 3, the suction and flushing device 5 includes a three-way connecting pipe 51 and a flushing mechanism 52. The three-way connecting pipe 51 includes a first pipe opening 511 connected to the connecting part 23, a second pipe opening 512 connected to the flushing mechanism 52, and a third pipe opening 513 for connecting to a negative pressure suction mechanism. The third pipe opening 513 is arranged between the first pipe opening 511 and the second pipe opening 512. The flushing pipe 4 passes through the first pipe opening 511 and the second pipe opening 512 and is connected to the flushing mechanism 52. The rear end of the gun body 11 is provided with a suction pipe 53 for connecting to a negative pressure suction mechanism. The suction pipe 53 is connected to the third pipe opening 513 through a connecting pipeline and is provided with an adjustment switch 54 for controlling the size of the suction force (the adjustment switch 54 is controlled by a regulating valve that controls the size of the through hole).

[0032] This embodiment is further configured as follows: the flushing mechanism 52 includes a pressing member 521, a connecting pipe 522, a water inlet pipe 523 and a pressure one-way valve controlled by the pressing member 521, the connecting pipe 522 includes a water outlet end connected to the flushing pipe 4 through a connecting pipe and a water inlet end connected to the water inlet pipe 523, the water inlet pipe 523 includes a water inlet 5231 for connecting to the flushing liquid, the water inlet 5231 is arranged at the rear end of the shell 1, the pressure one-way valve is arranged in the connecting pipe 522, (the pressure one-way valve is arranged on the connecting pipe between the connecting pipe 522 and the flushing pipe 4), the pressing member 521 includes a pressing portion arranged at the front end of the handle portion 12 and a gas rod at one end arranged in the connecting pipe 522.

[0033] In the technical solution of the present invention, the pressure one-way valve is an existing standard component and is therefore not described in detail. Controlling the water discharge of the pressure one-way valve by pressing is an existing technology and is therefore not described in detail.

[0034] This embodiment further provides that: a one-way valve is provided at the end of the water inlet pipe 523.

[0035] This embodiment further provides: the first pipe opening 511 is provided with a first sealing plug, the first sealing plug is provided with a through hole adapted to the connecting portion 23, the second pipe opening 512 is provided with a second sealing plug, the second sealing plug is provided with a through hole adapted to the flushing pipe 4.

[0036] This embodiment further provides that: a one-way valve is provided between the third pipe opening 513 and the suction pipe 53 .

[0037] This embodiment further provides: the electrocoagulation and electrocuting device 6 includes a control button 61, a contact 611 is provided at the rear end of the control button 61, a circuit board 62 and a power supply line connected to the circuit board 62 are provided behind the control button 61, and the power supply line is electrically connected to the conductive rod 2.

[0038] This embodiment further provides that: the front end of the electrocoagulation working head 21 is provided with a cut surface, and the side wall of the electrocoagulation working head 21 is provided with a triangular incision.

[0039] This embodiment is further configured as follows: the front end of the flushing tube 4 does not extend out of the electrocoagulation working head 21 , but is disposed inside the conductive rod 2 .

[0040] This embodiment further provides that: the electrocoagulation and electrocuting device 6 further includes an elastic conductive sheet 64 abutting against the conductive portion 22 , and the elastic conductive sheet 64 is connected to the power supply line.

[0041] This embodiment is further configured as follows: a rotating wheel 7 for driving the conductive rod 2 to rotate is provided at the front end of the gun body 11 , and the connecting portion 23 is rotatably connected to the first nozzle 511 .

[0042] In the description of the present invention, it should be noted that the terms "front" and "rear" and other terms indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. The term "between" does not refer solely to orientations or positions, but also includes the interaction between different components.

[0043] Although the following terms are frequently used herein: housing 1, gun body 11, handle 12, conductive rod 2, electrocoagulation working head 21, conductive portion 22, connecting portion 23, insulating layer 3, flushing tube 4, suction and flushing device 5, three-way connecting tube 51, first pipe opening 511, second pipe opening 512, third pipe opening 513, flushing mechanism 52, pressing member 521, connecting tube 522, water inlet pipe 523, water inlet 5231, suction tube 53, adjustment switch 54, electrocoagulation and cutting device 6, control button 61, contact 611, circuit board 62, elastic conductive sheet 64, rotating wheel 7, etc., the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. An electrocoagulation aspirator, comprising a housing, characterized in that: The shell includes a gun body and a handle. A conductive rod is provided at the front end of the gun body. An insulating layer is provided on the periphery of the conductive rod. An electrocoagulation working head is provided at the front end of the conductive rod. The conductive rod is hollow. A flushing tube is sleeved inside the conductive rod. The gap between the inner wall of the conductive rod and the outer wall of the flushing tube forms a suction channel. A suction flushing device and an electrocoagulation and electrocuting device are provided in the shell. A conductive part for connecting to the electrocoagulation and electrocuting device and a connecting part for connecting to the suction flushing device are provided at the rear end of the conductive rod. The conductive part is electrically connected to the electrocoagulation and electrocuting device. Placed between the connecting part and the insulating layer, the suction and flushing device includes a three-way connecting pipe and a flushing mechanism, the three-way connecting pipe includes a first pipe opening connected to the connecting part, a second pipe opening connected to the flushing mechanism and a third pipe opening for connecting to the negative pressure suction mechanism, the third pipe opening is arranged between the first pipe opening and the second pipe opening, the flushing pipe passes through the first pipe opening and the second pipe opening and is connected to the flushing mechanism, the rear end of the gun body is provided with a suction pipe for connecting to the negative pressure suction mechanism, the suction pipe and the third pipe opening are connected by a connecting pipeline and are provided with an adjustment switch for controlling the size of the suction force.

2. The electrocoagulation flushing and aspiration device according to claim 1, characterized in that: The flushing mechanism includes a pressing piece, a connecting pipe, a water inlet pipe and a pressure one-way valve controlled by the pressing piece. The connecting pipe includes a water outlet end connected to the flushing pipe through a connecting pipe and a water inlet end connected to the water inlet pipe. The water inlet pipe includes a water inlet for connecting to the flushing liquid. The water inlet is arranged at the rear end of the shell. The pressure one-way valve is arranged in the connecting pipe. The pressing piece includes a pressing part arranged at the front end of the handle and a gas pressure rod one end of which is arranged in the connecting pipe.

3. The electrocoagulation flushing and aspiration device according to claim 2, characterized in that: The water inlet pipe port is provided with a one-way valve.

4. The electrocoagulation flushing and aspiration device according to claim 1, characterized in that: The first pipe opening is provided with a first sealing plug, which is provided with a through hole adapted to the connecting portion; the second pipe opening is provided with a second sealing plug, which is provided with a through hole adapted to the flushing pipe.

5. The electrocoagulation flushing and aspiration device according to claim 1, characterized in that: A one-way valve is provided between the third pipe opening and the suction pipe.

6. The electrocoagulation flushing and aspiration device according to claim 1, characterized in that: The electrocoagulation and electrocuting device includes a control button, a contact is provided at the rear end of the control button, a circuit board and a power supply line connected to the circuit board are provided behind the control button, and the power supply line is electrically connected to the conductive rod.

7. The electrocoagulation flushing and aspiration device according to claim 6, characterized in that: The front end of the electrocoagulation working head is provided with a cut surface, and the side wall of the electrocoagulation working head is provided with a triangular incision.

8. The electrocoagulation flushing and aspiration device according to claim 7, characterized in that: The electrocoagulation and electrocuting device further comprises an elastic conductive sheet abutting against the conductive portion, and the elastic conductive sheet is connected to the power supply line.

9. The electrocoagulation flushing and aspiration device according to claim 8, characterized in that: The front end of the gun body is provided with a rotating wheel for driving the conductive rod to rotate, and the connecting part is rotatably connected to the first pipe mouth.

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