Negative pressure suction operation electrotome

Abstract

A negative pressure suction surgical electrotome belongs to the technical field of medical instruments and comprises an electrotome rod and an operating handle, the operating handle is a hollow handle, an electrotome chip and a miniature negative pressure pump are arranged in the operating handle, an electric cutting switch, an electrocoagulation switch and a negative pressure switch are arranged on the outer surface of the operating handle, the electrotome rod is a hollow rod, and an inclined solid core tool bit is arranged at the front end of the electrotome rod. The tail end of the electrotome rod is a straight cut-off hollow electrotome tail, the rear section of the electrotome rod is electrically connected with the electrotome chip and communicated with the miniature negative pressure pump, a ceramic membrane is arranged on the front section of the electrotome rod, and a plurality of smoke suction holes are formed in the portion, close to the solid-core electrotome head, of the electrotome rod and the ceramic membrane at the position. The smoke suction hole vertically penetrates through the ceramic membrane and the rod wall of the hollow electrotome rod; the electrotome has the advantages that smoke and liquid discharging functions are added to the electrotome, the smoke suction hole is formed in the front portion of the hollow electrotome rod, smoke or interstitial fluid generated by electrotome can be sucked out in time, and the operation view can be kept clear all the time on the whole.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically a negative pressure suction surgical electrosurgical knife. Background Technology

[0002] Surgical smoke is a visible mist produced during surgical procedures. When doctors use electrocautery, the incomplete combustion of proteins, fats, and other substances in human tissues rapidly generates surgical smoke. Surgical smoke poses many hazards, such as: (1) Surgical smoke can obstruct the doctor's vision, hindering accurate operation and affecting the surgical process. (2) Doctors are close to the surgical smoke and are prone to inhaling large amounts of it. As chemical and biological materials are dispersed in the smoke, it can sometimes blur vision and cause potential hazards such as nausea, ocular discomfort, and upper respiratory tract pain.

[0003] To address this, patent document CN 215914867 U discloses a smoke-exhausting electrosurgical unit, comprising a housing, a smoke-exhausting component, and an electrode head. The smoke-exhausting component is connected to the housing and the electrode head at both ends, and has a smoke-exhausting hole that penetrates the component. The housing has a third interface, a power wire, and a control button. The third interface communicates with the smoke-exhausting hole and is connected to a negative pressure device. The smoke-exhausting hole is used to absorb smoke generated at the electrode head. The power wire connects to the power source, and medical personnel start the motor via the control button. However, this electrosurgical unit has three major drawbacks: 1) The smoke-exhausting hole is located at the front angle of the blade, which can scratch tissue during the advancement of the electrosurgical unit, causing unnecessary harm to the patient; 2) The smoke-exhausting hole is concentrated at the front angle of the blade, only absorbing smoke from that location and not absorbing surrounding smoke; 3) The negative pressure is external, resulting in excessive suction that is difficult to adjust and can easily cause damage to normal tissue by adsorbing it. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a negative pressure suction surgical electrosurgical unit that does not damage tissue with the smoking hole and can provide appropriate negative pressure, so that the surgeon can clearly observe the surgical site.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is a negative pressure suction surgical electrosurgical unit, including an electrosurgical rod and an operating handle. The operating handle is hollow, and an electrosurgical chip and a miniature negative pressure pump are disposed inside the hollow shell of the operating handle. An electro-cutting switch, an electro-coagulation switch, and a negative pressure switch are disposed on the outer surface of the hollow shell of the operating handle. The electro-cutting switch and the electro-coagulation switch are electrically connected to the electrosurgical chip, and the negative pressure switch is electrically connected to the miniature negative pressure pump. The electrosurgical rod is hollow, with an inclined solid blade at its front end and a straight hollow blade tail at its rear end. The rear section of the electrosurgical rod is placed inside the operating handle and is electrically connected to the electrosurgical chip. The hollow blade tail at the rear end of the electrosurgical rod is connected to the miniature negative pressure pump. A ceramic film is disposed on the outer surface of the front section of the electrosurgical rod, i.e., the section exposed outside the operating handle. The solid blade is not... The device includes a ceramic membrane. Several smoke-smoking holes are located on the section of the electrosurgical stem adjacent to the solid blade head and on the ceramic membrane at that location. These smoke-smoking holes pass vertically through the ceramic membrane and the wall of the hollow electrosurgical stem. There are no smoke-smoking holes on the solid blade head. Thus, there are no smoke-smoking holes on the inclined portion of the electrosurgical stem, and the smoke-smoking holes are perpendicular to the electrosurgical stem. When the electrosurgical stem cuts in tissue, the smoke-smoking holes will not scrape the tissue. Because the smoke-smoking holes are evenly distributed on the wall of the hollow electrosurgical stem at the front and pass through the ceramic membrane, smoke from the cutting position and its surroundings can be drawn in, rather than just smoke from the electrosurgical position. A power cord is connected to the electrosurgical chip and the miniature negative pressure pump, passing through the hollow shell of the operating handle and connecting to the outside. An exhaust drainage pipe is connected to the miniature negative pressure pump, also passing through the hollow shell of the operating handle and connecting to the outside.

[0006] The negative pressure switch is a multi-stage adjustable negative pressure switch, which allows for adjustment of the negative pressure level.

[0007] The electric knife tip is a slanted solid tip, and there is no smoke extraction hole on the tip.

[0008] The smoke inlets are evenly distributed and pass through the rod wall and ceramic membrane of the hollow electric knife rod.

[0009] Furthermore, the exhaust pipe is equipped with a one-way valve to prevent backflow of flue gas.

[0010] Furthermore, a smoke collection bin is also provided, and the exhaust pipe is inserted into the smoke collection bin;

[0011] Furthermore, the smoke collection bin is equipped with a filter liquid.

[0012] The beneficial effects of this invention are that it adds smoke and fluid extraction functions to the electrosurgical unit. The unit is designed as a hollow rod with a smoke extraction hole at its front, allowing for timely extraction of smoke or tissue fluid generated during electrosurgical cutting. A miniature negative pressure pump and a multi-stage adjustable negative pressure switch are incorporated within the operating handle. Because the negative pressure intensity of the miniature pump is much lower than that of an external negative pressure system, it avoids interfering with tissue during negative pressure operation. The negative pressure intensity can be effectively controlled and adjusted, and the smoke extraction speed can be adjusted according to actual conditions. The smoke extraction hole is perpendicular to the electrosurgical unit, not at an angle, preventing scraping of tissue when the unit cuts. A ceramic membrane is incorporated, which is not only insulating but also very smooth, effectively preventing damage to tissue. Overall, the surgical field remains clear at all times, avoiding surgical interruptions and secondary injuries. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the negative pressure suction surgical electrosurgical unit of this utility model.

[0014] In the diagram: 1. Electrosurgical blade, 2. Operating handle, 3. Electrosurgical chip, 4. Miniature negative pressure pump, 5. Electrosurgical switch, 6. Electrocoagulation switch, 7. Negative pressure switch, 8. Solid blade tip, 9. Hollow blade tail, 10. Ceramic membrane, 11. Smoke port, 12. Power cord, 13. Exhaust drain tube. Detailed Implementation

[0015] The present invention will be further described below with reference to the embodiments.

[0016] As shown in the figure, a negative pressure suction surgical electrosurgical unit is fabricated, comprising an electrosurgical rod 1 and an operating handle 2. The operating handle 2 is a hollow shell, inside which is disposed an electrosurgical chip 3 and a miniature negative pressure pump 4. The outer surface of the hollow shell of the operating handle 2 is provided with an electrocautery switch 5, an electrocoagulation switch 6, and a negative pressure switch 7. The negative pressure switch 7 is a multi-stage adjustable negative pressure switch, capable of adjusting the negative pressure. The electrocautery switch 5 and the electrocoagulation switch 6 are electrically connected to the electrosurgical chip 3, and the negative pressure switch 7 is electrically connected to the miniature negative pressure pump 4. The electrosurgical rod 1 is a hollow rod with an inclined front end. The solid blade 8, i.e., the electrosurgical blade head, is an inclined solid blade head 8 with a hollow channel blade body; its tail end is a straight, hollow blade tail 9. The rear section of the electrosurgical rod 1 is placed inside the operating handle 2 and electrically connected to the electrosurgical chip 3. The hollow blade tail 9 at the tail end of the rear section of the electrosurgical rod 1 is connected to the micro negative pressure pump 4. A ceramic film 10 is provided on the outer surface of the front section of the electrosurgical rod 1, i.e., the section exposed outside the operating handle. The solid blade head 8 does not have a ceramic film 10. The ceramic film 10 is located on the section of the electrosurgical rod 1 immediately adjacent to the solid blade head 8. A plurality of smoke-smoking holes 11 are evenly distributed, and the smoke-smoking holes 11 pass vertically through the ceramic membrane 10 and the wall of the hollow electrosurgical rod 1. The solid cutting head 8 does not have smoke-smoking holes 11. Thus, there are no smoke-smoking holes on the inclined part of the electrosurgical rod 1. The smoke-smoking holes 11 are perpendicular to the electrosurgical rod 1. When the electrosurgical rod 1 cuts in the tissue, the smoke-smoking holes 11 will not scrape the tissue. Since the plurality of smoke-smoking holes 11 are evenly distributed on the wall of the hollow electrosurgical rod 1 at the front and pass through the ceramic membrane 10, the smoke at the electrosurgical cutting position and its surroundings can all be drawn in, and it is no longer just the electrosurgical cutting head. The smoke in the operating room can be inhaled; the electrosurgical chip 3 and the miniature negative pressure pump 4 are connected to a power cord 12 that passes through the hollow shell of the operating handle 2 and connects to the outside; the miniature negative pressure pump 4 is connected to an exhaust drainage pipe 13 that passes through the hollow shell of the operating handle 2 and connects to the outside; the exhaust drainage pipe 13 is equipped with a one-way valve to prevent backflow of smoke; a smoke collection bin is also provided, and the exhaust drainage pipe 13 is inserted into the smoke collection bin, which contains a filter liquid. The smoke discharged by the miniature negative pressure pump 4 is poured into the filter liquid, which can completely prevent the smoke from spreading into the operating room.

[0017] In use, the exhaust drainage tube 13 is placed into the smoke collection bin, and the tube hole is submerged in the filtrate. Then, the power cord 12 is connected to the corresponding energy system. The surgeon holds the operating handle 2, pinching the electrocautery switch 5 with the index finger, the electrocoagulation switch 6 with the middle finger, and the negative pressure switch 7 with the thumb, just like holding a pen. Then, aiming at the target surgical site, the surgeon presses the electrocautery switch 5 or the electrocoagulation switch 6 with the index or middle finger. When smoke or tissue fluid is detected, the surgeon presses the negative pressure switch 7 with the thumb. The micro negative pressure pump 4 generates negative pressure, drawing the smoke or tissue fluid through the smoke inlet 11 into the hollow channel of the electrosurgical rod, and then expelling it into the smoke collection bin through the exhaust drainage tube 13. This prevents smoke or tissue fluid from obstructing the surgeon's vision, allowing the surgery to proceed smoothly.

Claims

1. A negative pressure suction surgical electrosurgical unit, comprising an electrosurgical rod (1) and an operating handle (2), characterized in that... The operating handle (2) is a hollow shell. Inside the hollow shell of the operating handle (2) is an electrosurgical chip (3) and a miniature negative pressure pump (4). On the outer surface of the hollow shell of the operating handle (2) are an electro-cutting switch (5), an electro-coating switch (6), and a negative pressure switch (7). The electro-cutting switch (5) and the electro-coating switch (6) are electrically connected to the electrosurgical chip (3), and the negative pressure switch (7) is electrically connected to the miniature negative pressure pump (4). The electrosurgical rod (1) is a hollow rod with an inclined solid blade (8) at its front end and a straight hollow blade tail (9) at its rear end. The rear section of the electrosurgical rod (1) is placed inside the operating handle (2) and electrically connected to the electrosurgical chip (3). The hollow blade tail (9) at the rear end of the electric knife rod (1) is connected to the micro negative pressure pump (4). A ceramic membrane (10) is provided on the outer surface of the front section of the electric knife rod (1). Several smoke holes (11) are evenly distributed on the section of the electric knife rod (1) adjacent to the solid blade head (8) and on the ceramic membrane (10) at that position. The smoke holes (11) pass vertically through the rod wall of the hollow electric knife rod (1). The electric knife chip (3) and the micro negative pressure pump (4) are connected to a power line (12) which passes through the hollow shell tail of the operating handle (2) and connects to the outside. The micro negative pressure pump (4) is connected to an exhaust drainage pipe (13) which passes through the hollow shell tail of the operating handle (2) and connects to the outside.

2. The negative pressure suction surgical electrosurgical unit according to claim 1, characterized in that... The negative pressure switch (7) is a multi-stage adjustable negative pressure switch.

3. The negative pressure suction surgical electrosurgical unit according to claim 2, characterized in that... The electric knife tip is a slanted solid tip (8) and has no smoke extraction hole (11) on the tip.

4. The negative pressure suction surgical electrosurgical unit according to claim 3, characterized in that... The smoke inlet (11) is evenly distributed and passes through the rod wall and ceramic film (10) of the hollow electric knife rod (1).

5. The negative pressure suction surgical electrosurgical unit according to claim 4, characterized in that... The exhaust pipe (13) is equipped with a one-way valve.

6. The negative pressure suction surgical electrosurgical unit according to claim 5, characterized in that... It is also equipped with a smoke collection bin, and the exhaust pipe (13) is connected to the smoke collection bin.

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