Flushing and suction electrocoagulation cutter
By designing a detachable cutting head and an anti-accidental contact unit with built-in suction and flushing pipelines in the electrocoagulation cutter, the damage and safety hazards caused by accidental contact in existing devices have been solved, achieving stable operation and low-cost production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI EAST HOSPITAL EAST HOSPITAL TONGJI UNIV SCHOOL OF MEDICINE
- Filing Date
- 2026-03-24
- Publication Date
- 2026-05-19
AI Technical Summary
Existing electrocautery cutters are prone to accidental button presses that could cause the suction and flushing functions to activate simultaneously, damaging the device or endangering patient safety. They are also complex in structure and expensive.
The design incorporates cutting and functional components, a detachable cutting head, built-in suction and flushing lines, and a stop piston structure with an anti-accidental-trigger unit to switch between different functions and prevent accidental triggering.
It ensures stable operation of the device, prevents damage, improves safety, reduces costs, has a simple structure, and is easy to use.
Smart Images
Figure CN122056680A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electrocoagulation cutting technology, and in particular to a flushing and suction electrocoagulation cutter. Background Technology
[0002] In modern surgical procedures, electrocoagulation cutting devices are widely used medical equipment. Based on the thermal effect of high-frequency current, they combine electrocoagulation hemostasis and tissue separation (cutting) functions. The device generates a high-frequency current at a specific frequency via a high-frequency generator, which is then transmitted to the target tissue through electrodes. Due to the resistance of human tissue, the current is converted into heat energy through the Joule effect, raising the local tissue temperature (typically to 60-100°C). At this point, water evaporates, proteins denature and coagulate, and blood vessel walls constrict and close, achieving precise hemostasis, especially suitable for controlling bleeding from small blood vessels during surgery. When the device parameters are adjusted (increasing the current intensity or optimizing the frequency), the high-frequency current transmitted through the electrodes causes a rapid increase in the local tissue temperature (up to several hundred degrees Celsius), instantly vaporizing and rupturing tissue cells, creating interstitial spaces to cut and separate diseased tissue. Simultaneously, the heat generated during the cutting process also coagulates and stops bleeding from the small blood vessels around the incision. To reduce surgical bleeding, the high temperature during electrocoagulation cutting generates fumes at the cutting site, causing bleeding and scab formation. While some existing electrocoagulation cutters have the function of absorbing fumes or rinsing, they do not have the function of absorbing blood and other fluids seeping from the cutting site during electrocoagulation cutting. Furthermore, in actual use, operators may accidentally press the rinsing button or switch, causing rinsing while absorbing fumes, which can damage the cutter and, in severe cases, even endanger patient safety.
[0003] Furthermore, CN110811820 B discloses a straight-bar type flushing and suction electrocoagulation cutter, which includes a main handle, a functional tube, a cutter head, a flushing system, a suction system, a plug, and a cable. The main handle is a straight-bar structure with a set of four-way pipes inside. The front end of the pipes is connected to the functional tube, and the rear end of the pipes is provided with a suction tube interface. The two sides of the pipes are respectively provided with flushing tube interfaces and airbag interfaces. An airbag system is also sleeved on the outside of the airbag interface. The airbag system includes an airbag valve, an airbag pipe sleeved with the airbag interface, an ellipsoidal airbag, and a pressure regulating valve at the rear of the airbag. The functional tube includes an outer insulating tube and an inner stainless steel tube. An optical fiber is also provided in the inner layer of the stainless steel tube. Although this application can achieve the effect of flushing and suctioning flue gas by setting the flushing system and suction system outside the main handle, this structural setting also makes the overall structure of the device too complex and the production cost high. Summary of the Invention
[0004] To address the aforementioned problems, this invention aims to provide a flushing and suction electrocoagulation cutter. By designing a cutting assembly with a detachable and replaceable cutting head at the front end of the handle, and by designing functional components, including suction and flushing channels inside the handle, and a functional piston at the connection between the handle and the cutter head, the device can suction the fumes generated during electrocoagulation cutting through the front end of the handle, and suction blood and other liquids seeping from the cutting area through the working hole on the cutting head, or spray flushing fluid from the working hole on the cutting head. An anti-accidental contact unit is installed between the suction and flushing channels, and a set of automatically resetting stop piston structures cuts off the flushing channel when suction is in progress and the suction channel is cut off when flushing, preventing the device from being affected by another function during suction or flushing, ensuring stable operation. This device boasts advantages such as high reliability, ease of use, and simple structure.
[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A flushing suction electrocoagulation cutter includes a handle, a cutting component at the front end of the handle, and a functional component inside the handle for attracting fumes and flushing contaminants.
[0006] The cutting assembly includes a handle threadedly connected to the front end of the grip. A fixing block is provided at the connection between the grip and the handle. A blade fixing shaft is provided in the middle of the fixing block. The blade fixing shaft passes through the handle, and a cutting blade is provided at one end of the shaft located outside the handle.
[0007] Based on the above technical solution, a conductive component for supplying power to the electrocoagulation cutting blade is further provided at the connection between the handle and the grip. The conductive component is in close contact with the fixing block. An electrode interface for connecting to an external power supply device is provided below the grip. The electrode interface is connected to the conductive component through a wire so that the power supply device supplies power to the conductive component to provide the power required for electrocoagulation cutting to the cutting head.
[0008] The functional components include a suction tube and a flushing tube disposed within the handle. The front ends of the suction tube and the flushing tube are connected to each other, and the ends of the suction tube and the flushing tube are respectively connected to an external negative pressure suction device and a flushing device.
[0009] Based on the above technical solution, furthermore, a functional piston is slidably disposed at the connection between the handle and the knife handle, which fits tightly against the inner wall of the handle. A delivery tube head is disposed at the center of the functional piston, and multiple suction holes are also formed on the side wall of the delivery tube head. When the external negative pressure suction device is activated, The functional piston moves away from the handle under the negative pressure of the suction pipe, and the suction hole on the delivery pipe head is connected to the internal cavity of the handle, thereby drawing in the fumes generated during cutting through the front end of the handle.
[0010] Based on the above technical solution, a fixed shaft through groove is further provided inside the cutter head fixed shaft. The inner diameter of the fixed shaft through groove matches the outer diameter of the delivery pipe head. Multiple working holes are provided on the cutting cutter head. When the negative pressure suction device is activated and the functional piston is attracted, the end of the delivery pipe head on the functional piston is still in communication with the fixed shaft through groove inside the cutter head fixed shaft. At this time, the suction pipe can synchronously generate a negative pressure suction effect on the fixed shaft through groove, so that the working holes on the cutting cutter head can attract the blood seeping from the cutting part. When the external flushing device is activated, the water pressure in the flushing pipe can be combined with the reset effect of the functional piston reset component to move the functional piston closer to the handle. The flushing liquid enters the fixed shaft through groove inside the cutter head fixed shaft through the delivery pipe head and is sprayed out from the working holes on the cutting cutter head for flushing.
[0011] The handle is also equipped with a functional piston reset component for resetting the functional piston towards the handle.
[0012] The functional components also include an anti-accidental touch unit, which includes a pair of first and second stop pistons slidably disposed in the handle. When the first stop piston slides upward, it can block the suction pipe, and when the second stop piston slides upward, it can block the flushing pipe. A first stop piston reset component is disposed above the first stop piston, and a second stop piston reset component is disposed below the second stop piston.
[0013] Based on the above technical solution, further, the bottom of the first stop piston is provided with a negative pressure suction hole that can attract the second stop piston upward, and an adjusting piston rod that penetrates into the interior of the second stop piston is provided at the center of the bottom of the first stop piston; then, when the external negative pressure suction device generates a negative pressure suction effect on the suction pipe, the second stop piston can be attracted upward through the negative pressure suction hole to block the flushing pipe; when the external flushing device fills the flushing pipe with flushing liquid, the adjusting piston rod together with the first stop piston can be pushed upward to block the suction pipe, thereby preventing the accidental triggering of another function when performing flue gas suction or flushing.
[0014] A method of using a flushing suction electrocoagulation cutter includes the following steps: S1. Turn on the external power supply to power the cutting head for electrocoagulation cutting of the patient's surgical site; S2. Turn on the external negative pressure suction device to draw in the fumes generated during electrocoagulation cutting; S3. Turn on the external rinsing equipment to rinse the cutting head and the cutting area.
[0015] In S2 and S3, when performing smoke suction or flushing, the flushing pipe or suction pipe is blocked by the anti-accidental contact unit to prevent accidental contact from causing smoke suction or flushing to occur simultaneously, which could damage the electrocoagulation cutter or threaten the patient's safety.
[0016] In step S2, when the external negative pressure suction device is turned on, the blood and other liquids seeping from the cutting part can also be suctioned through the working hole on the cutting head.
[0017] The beneficial effects of this invention are: 1. This application provides a cutting component at the front end of the handle, which powers the cutting head through an external power supply device to perform electrocoagulation cutting on the surgical site. It also provides a functional component inside the handle, which can attract the fumes generated during cutting through the front end of the handle by turning on the external negative pressure suction device, attract the blood seeping from the cutting site through the working hole on the cutting head, or wash away contaminants such as blood scabs from the cutting head or the cutting site through a flushing device. It has the advantage of comprehensive functions. 2. By setting an anti-accidental contact unit inside the handle, and by setting a set of stop pistons inside the handle that can block the suction line or the flushing line respectively, the flushing line is blocked when suction is performed, or the suction line is blocked when flushing is performed, to prevent damage to the electrocoagulation cutter or harm to the patient undergoing surgery due to the simultaneous connection of the two lines. It has the advantage of high reliability. 3. Compared with other existing devices, the entire structure of this application is set inside the handle, with a high degree of integration. Doctors can hold the handle to perform electrocoagulation cutting operations, and the cutting head can be replaced according to actual needs, which makes this application have the advantages of simple structure and convenient use. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a side sectional view of the present invention; Figure 4 for Figure 3 A detailed view of point A; Figure 5 In order to attract flue gas Figure 3 A detailed view of point A; Figure 6 In the rinsing state Figure 3 A detailed view of point A; Figure 7 A 3D structural cross-sectional view of the unit under normal operating conditions to prevent accidental activation; Figure 8 A three-dimensional cross-sectional view of the anti-accidental activation unit under normal operating conditions when attracting flue gas; Figure 9 This is a three-dimensional cross-sectional view of the anti-accidental touch unit under normal conditions during rinsing. Figure 10 for Figure 3 A detailed view at point B; Figure 11 In the rinsing state Figure 3 A detailed view at point B; Figure 12 A three-dimensional sectional view of the handle; Figure 13 for Figure 12 A detailed view at point C; Figure 14 for Figure 12 A detailed view at point D; Figure 15 This is a schematic diagram of the internal structure of the knife handle; Figure 16 for Figure 15 A detailed view at point E; Figure 17 For based on Figure 16 A close-up view of the area after adding the functional piston; Figure 18 For based on Figure 17 A close-up view after adding conductive components; Figure 19 This is a three-dimensional structural diagram of a functional piston.
[0020] The components include: 1. Handle; 2. Cutting assembly; 201. Blade holder; 202. Fixing block; 203. Blade head fixing shaft; 204. Cutting blade head; 205. Conductive component; 206. Electrode interface; 207. Wire; 208. Fixing shaft through groove; 209. Working hole; 3. Functional component; 301. Suction pipe; 302. Flushing pipe; 303. Functional piston; 304. Delivery pipe head; 305. Functional piston reset component; 306. Suction hole; 307. First stop piston; 308. Second stop piston; 309. First stop piston reset component; 310. Second stop piston reset component; 311. Negative pressure suction hole; 312. Adjusting piston rod; 313. Limiting platform; 4. Control button. Detailed Implementation
[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0022] The inventors discovered that due to the high temperature during electrocoagulation cutting, fumes, bleeding, and scabs may form at the cutting site or on the cutting tip. Some existing electrocoagulation cutters have the function of attracting fumes or rinsing. However, in actual use, operators may accidentally touch the rinsing button or switch, causing rinsing while attracting fumes, which can damage the cutter and even endanger patient safety in severe cases. In addition, some other existing devices are too complex in structure, resulting in high production costs and making them unsuitable for mass production.
[0023] Based on the above findings, this application proposes a flushing and suction electrocoagulation cutter. By designing a cutting assembly with a detachable and replaceable cutting head at the front end of the handle, and by designing functional components, a suction and flushing pipeline are opened inside the handle. In conjunction with a functional piston at the connection between the handle and the blade, the fumes generated during electrocoagulation cutting are attracted through the front end of the handle, and blood and other liquids seeping from the cutting area are attracted through the working hole on the cutting head. Alternatively, flushing fluid is sprayed from the working hole on the cutting head for rinsing. An anti-accidental contact unit is installed between the suction and flushing pipelines, and a set of automatically resetting stop piston structures cuts off the flushing pipeline when the suction pipeline is performing suction, and cuts off the suction pipeline when flushing, preventing the device from being affected by another function during suction or flushing. This ensures stable operation of the device and has the advantages of high reliability, ease of use, and simple structure.
[0024] Example 1: See Figures 1-3 This application discloses a flushing suction electrocoagulation cutter, including a handle 1, see reference. Figure 12 The handle is made of a lightweight material with high strength and insulation properties. Its internal structure is solid. A cutting component 2 for cutting human tissue and simultaneously electrocoagulating hemostasis is located at the front end of the handle 1. See Figure 15 The cutting assembly 2 includes a handle 201, which is a tapered rod structure with a cylindrical through groove inside. The whole is made of a lightweight material with high strength and insulation. The end with the larger cross-sectional diameter and the end of the handle 1 are provided with a threaded structure to fix the handle 201 and the handle 1 through a threaded connection. A fixing block 202 is provided inside the threaded end of the tool holder 201. The fixing block 202 is a flat, annular cylindrical structure, with its side end face fitting against the inner wall of the tool holder 201. The middle of the fixing block 202 is fixedly connected to the tool head fixing shaft 203 through a multi-fan-shaped fixing rod structure. That is, the fixing block 202 can be regarded as having a multi-fan-shaped through groove structure on its circular surface. In this embodiment, the fixing block 202 and the tool head fixing shaft 203 can also be integrally formed. If the cutting assembly 2 is designed as an integral structure, then during installation, the end of the cutting head fixing shaft 203 away from the fixing block 202 can be inserted into the end of the handle 201 with a larger diameter until the fixing block 202 is in contact with the innermost end of the threaded structure of the handle 201. At this time, the cutting head fixing shaft 203 will be inserted out from the end of the handle 201 with a smaller diameter. The cutting head 204 can be fixed by means of threaded connection or snap-fit. That is, in actual use, the cutting head 204 can be replaced according to the actual application needs. See Figures 16-18 When the fixing block 202 and the cutting head fixing shaft 203 are installed inside the tool holder 201, a conductive element 205 is installed inside the tool holder 201, fitting snugly against the fixing block 202. The conductive element 205 is a metal ring with good conductivity. The inner and outer diameters of its ring structure are the same as the dimensions of the annular groove structure opened at the end connecting the handle 1 and the tool holder 201. When the tool holder 201, including the fixing block 202, the cutting head fixing shaft 203, and the conductive element 205, is installed on the handle 1, the limiting action of the conductive element 205... The device enables the end of the handle 201 with the threaded groove to form a cylindrical groove structure with a certain width between it and the fixing block 202. In this embodiment, a wire 207 is connected to the conductive element 205. The wire 207 passes through the inside of the handle 1 and is connected to the electrode interface 206 located at the bottom of the handle 1 so that an external power supply device can be connected to the electrode interface 206 to supply power to the conductive element 205. Then, the power required for electrocoagulation cutting is provided to the cutting head 204 through the fixing block 202 and the cutting head fixing shaft 203.
[0025] Example 2: The handle 1 is internally equipped with a functional component 3 for attracting or cleaning fumes or scabs generated during electrocautery cutting. The functional component 3 includes two suction pipes 301 and a flushing pipe 302 located within the handle 1. The front ends of the suction pipes 301 and the flushing pipes 302, near the handle 201, are interconnected. This connecting section extends to the threaded end of the handle 1, forming a connection with the interior of the handle 201. Near this connection point, within the cylindrical groove structure of a certain width described in Embodiment 1, a functional piston 303 is also slidably disposed. (See reference...) Figure 19 The edge of the plate with the largest cross-sectional diameter of the functional piston 303 is in contact with the inner end face of the conductive component 205. On the side of the plate away from the handle 201, there is an annular structure that is in contact with the inner wall of the connecting section extension of the threaded structure end of the handle 1. A functional piston reset component 305 is also provided at the end face of the annular structure and the handle 1. The functional piston reset component 305 is a spring product, which can move the functional piston 303 closer to the handle 201 when it is extended. In this embodiment, a delivery tube head 304 is provided on the other side of the plate surface with the largest cross-sectional diameter of the functional piston 303. The outer diameter of the delivery tube head 304 matches the inner diameter of the fixed shaft through groove 208 opened at the center of the cutter head fixed shaft 203. Multiple fine working holes 209 are opened on the cutting cutter head 204. When the functional piston 303 slides, it can drive the delivery tube head 304 to slide along the fixed shaft through groove 208. When the delivery tube head 304 slides into the fixed shaft through groove 208, the working holes 209 are blocked by the fixed shaft through groove 208. When the delivery tube head 304 slides out of the fixed shaft through groove 208, the working holes 209 can communicate with the cavity in the cutter handle 201. It should be noted that when the functional piston 303 slides to the maximum distance away from the cutter handle 201, the end of the delivery tube head 304 away from the functional piston 303 still remains in communication with the fixed shaft through groove 208. The other ends of the suction line 301 and the flushing line 302 extend to the tail end of the handle 1, and are connected to external negative pressure suction equipment and flushing equipment respectively via plug-in adapters, etc. (See reference) Figure 10When the negative pressure suction device is started, the negative pressure suction generated in the suction pipe 301 can draw the functional piston 303 towards the end closer to the handle 1 through the relatively fine size of the working hole 209 on the cutting head 204. This allows the suction hole 306 on the delivery pipe head 304 to connect with the cavity in the handle 201 through the fan-shaped through groove structure on the fixing block 202, so as to draw in the fumes generated simultaneously during electrocoagulation cutting and hemostasis. At the same time, since the delivery pipe head 304 and the fixed shaft through groove 208 are still in a connected state, a negative pressure suction can also be formed in the fixed shaft through groove 208, so as to draw in the blood or tissue fluid seeping from the cutting site through the working hole 209 on the cutting head 204, thereby cleaning the cutting site. At this time, the external power supply can be turned off according to the actual situation so that the cutting head 204 can be attached to the cutting site for suction. See Figure 11 When the rinsing equipment is started, the functional piston 303 can be moved closer to the handle 201 by the water pressure and the synchronous action of the functional piston reset component 305 until the delivery pipe head 304 is inserted into the fixed shaft through groove 208 of the cutter head fixed shaft 203. At this time, the air suction hole 306 on the delivery pipe head 304 is blocked, and the rinsing pipe 302 is connected to the fixed shaft through groove 208 through the through hole structure in the middle of the delivery pipe head 304. The rinsing liquid such as clean water can be discharged through the working hole 209 on the cutting cutter head 204 to clean the scab and other contaminants generated during cutting.
[0026] See Figures 4-6 An anti-accidental activation unit is also provided inside the handle 1. The anti-accidental activation unit can block the flushing pipe 302 when the smoke is being drawn in, and block the suction pipe 301 when the flushing is being drawn in, to prevent the two functions from being activated at the same time, which could damage the electrocoagulation cutter or cause harm to the patient undergoing electrocoagulation.
[0027] The anti-accidental contact unit includes a pair (i.e., two) mutually slidably connected first stop pistons 307 and second stop pistons 308, located inside the handle 1. It has an elongated cylindrical groove structure perpendicular to the suction pipe 301 and the flushing pipe 302. The lower section of the first stop piston 307 is slidably connected to the upper end of the second stop piston 308 via an adjusting piston rod 312. Both the first stop piston 307 and the second stop piston 308 have through grooves that respectively cooperate with the suction pipe 301 and the flushing pipe 302. Figure 7As shown, under normal conditions, the first stop piston 307 and the second stop piston 308 are located at the center of the elongated cylindrical groove structure, at the top and bottom of the groove structure, respectively. A first stop piston reset component 309 and a second stop piston reset component 310 are respectively provided. In this embodiment, both the first stop piston reset component 309 and the second stop piston reset component 310 are spring products. At this time, the first stop piston 307 and the second stop piston 308 can connect the suction pipe 301 and the flushing pipe 302 through the through-slot structure. (See reference...) Figure 13 The slender cylindrical groove structure located in the handle 1 is provided with limiting platforms 313 near the top and near the bottom, which can prevent the first stop piston reset member 309 or the second stop piston reset member 310 from moving excessively upward or downward. Located on the first stop piston 307, and with the adjusting piston rod 312 as the center, multiple negative pressure suction holes 311 are evenly distributed. When the negative pressure suction device is started, refer to... Figure 8 The negative pressure suction effect in the suction pipe 301 can draw the second stop piston 308 upward through the negative pressure suction hole 311 until the top of the second stop piston 308 completely covers the bottom of the suction hole 311. At this time, the flushing pipe 302 is blocked by the second stop piston 308. Even if the external flushing equipment is accidentally activated, the flushing liquid filled into the flushing pipe 302 will not affect the function of suctioning flue gas, that is, it prevents the accidental triggering of the flushing function, thereby ensuring the normal operation of the flue gas suction function. When the negative pressure suction device is turned off, the air pressure inside the suction pipe 301 tends to stabilize, and the second cut-off piston 308 is reset downward under the action of gravity and the second cut-off piston reset piece 310, so that the flushing pipe 302 is restored to connection. When the flushing equipment is started, the flushing fluid creates pressure in the flushing pipe 302, pushing the first cut-off piston 307 upward through the adjusting piston rod 312 until the piston structure at the bottom of the adjusting piston rod 312 contacts the second cut-off piston 308 near the top. At this time, the first cut-off piston 307 moves upward and blocks the suction pipe 301, which can prevent the flushing fluid from passing through the suction pipe 301 and flushing the pipe 302, thus affecting the flushing function. This prevents the suction function from being falsely triggered and ensures the normal operation of the flushing function. When the flushing equipment is turned off, the water pressure in the flushing pipe 302 decreases, and the first stop piston 307 resets downward under the action of gravity and the first stop piston reset piece 309, so that the suction pipe 301 is restored to connection.
[0028] Example 3: In this embodiment, a plurality of control buttons 4 are provided on the handle 1. The control buttons 4 can refer to existing push-button switch products. By pre-setting wires inside the handle 1, they are electrically connected to external power supply equipment, negative pressure suction equipment and rinsing equipment respectively, so that doctors can turn on the electrocoagulation cutting function, the fume suction function or the rinsing function by controlling the control buttons 4 respectively, thereby improving the ease of use of this application.
[0029] A method of using a flushing suction electrocoagulation cutter includes the following steps: S1. Turn on the external power supply to power the cutting head 204 for electrocoagulation cutting of the patient's surgical site; S2. Turn on the external negative pressure suction device to generate a negative pressure suction effect in the suction pipe 301 so as to draw the fumes generated during electrocoagulation cutting through the front opening of the handle 201. S3. Turn on the external flushing equipment and flush the cleaning fluid into the flushing pipe 302 to flush the cutting head 204 and the cutting area.
[0030] In S2 and S3, when the smoke is being drawn in, the flushing pipe 301 is blocked by the anti-accidental contact unit, or the suction pipe 302 is blocked when flushing is being performed, to prevent accidental contact from causing the smoke to be drawn in or the flushing to be performed at the same time, which could lead to damage to the electrocoagulation cutter or a threat to the patient's safety.
[0031] In S2, when the external negative pressure suction device is turned on, the blood or tissue fluid seeping from the cutting part can also be suctioned through the working hole 209 on the cutting head 204. The external power supply device can be turned off during suction.
[0032] Clinical application examples: 1. Preoperative preparation: An external power supply device is connected to the electrode interface 206 at the bottom of the handle 1 of this electrocoagulation cutter, and the external negative pressure suction device and flushing device are respectively connected to the suction pipe 301 and flushing pipe 302 at the end of the handle 1 away from the handle 201. The patient's position is determined according to the actual surgical site, and the surgical site to be cut is fully exposed. The patient is anesthetized before cutting. 2. Electrocautery cutting: Select the appropriate cutting head 204 according to the cutting area and install it on the cutting head fixing shaft 203. Then, hold the handle 1 and turn on the external power supply to provide power to the cutting head 204 to perform electrocoagulation cutting on the skin or tissue of the surgical site. 3. Function switching: Activate the external negative pressure suction device to draw in the harmful fumes generated during electrocoagulation cutting through the front end of the handle 201, preventing the fumes from harming the patient or doctor. When bleeding occurs at the cutting site, attach the working hole 209 on the side of the cutting head 204 to the bleeding site to draw in the blood. When drawing in blood, you can choose to turn off the external power supply device. Because electrocoagulation cutting burns the body tissue in the cutting area, producing contaminants such as scabs, and some contaminants may also adhere to the cutting head 204, the negative pressure suction device is turned off and the flushing device is started. Fluid is sprayed from the working hole 209 on the cutting head 204 to clean the contaminants adhering to the cutting area or the cutting head 204.
[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0034] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. A flushing suction electrocoagulation cutter, comprising a handle (1), characterized in that, Also includes: The cutting component (2) is located at the front end of the handle (1) and is used for electrocoagulation cutting; Functional component (3), located within handle (1), is used to draw in fumes generated during electrocoagulation cutting and to flush out contaminants generated during the process.
2. The flushing suction electrocoagulation cutter according to claim 1, characterized in that, Cutting component (2) includes: The handle (201) is located at one end of the grip (1); The cutting head fixing shaft (203) is set inside the cutting shank (201) and is used to install cutting heads (204) of different shapes. A conductive element (205) is disposed inside the handle (201) and is electrically connected to an electrode interface (206) disposed on the grip (1) for connecting to an external power supply device to provide the power required for electrocoagulation cutting to the cutting head (204).
3. The flushing suction electrocoagulation cutter according to claim 2, characterized in that, The cutting component (2) also includes: A fixed shaft through groove (208) is opened inside the cutter head fixed shaft (203), and its two ends are respectively connected to the handle (1) and the inside of the cutting head (204); The working hole (209) is provided on the cutting head (204) and is used to cooperate with the functional component (3) to spray out the flushing fluid that enters the fixed shaft through groove (208) or to draw out the liquid that seeps out from the cutting part.
4. The flushing suction electrocoagulation cutter according to claim 3, characterized in that, Functional component (3) includes: Suction pipe (301) and flushing pipe (302) are respectively opened in the handle (1), and their front ends are connected to each other and connected to the internal cavity of the handle (201); The ends of the suction pipe (301) and the flushing pipe (302) pass through the handle (1) and are respectively connected to the external negative pressure suction device and flushing device to achieve the suction of harmful smoke and the flushing of pollutants, as well as the suction of liquid seeping from the cutting part by the cutting head (204). The functional piston (303) is located at one end of the connection between the suction pipe (301) and the flushing pipe (302). It can move away from the handle (201) under the suction effect generated by the negative pressure suction device, or move towards the handle (201) under the water pressure generated by the flushing device.
5. A flushing suction electrocoagulation cutter according to claim 4, characterized in that, Functional component (3) also includes: The delivery tube head (304) is located on the side of the functional piston (303) near the tool holder (201), and its cross-sectional diameter matches the fixed shaft through groove (208); The suction hole (306) is provided on the delivery pipe head (304) and is used to generate negative pressure to attract the fumes generated during electrocoagulation cutting. The function piston reset component (305) is located at the connection between the handle (1) and the tool holder (201) and is used to reset the function piston (303) towards the tool holder (201).
6. The flushing suction electrocoagulation cutter according to claim 5, characterized in that, Functional component (3) also includes an anti-accidental touch unit, which includes: The first shut-off piston (307) is located inside the handle (1) and can block the suction line (301) when it moves upward; The second shut-off piston (308) is located inside the handle (1) and below the first shut-off piston (307). When it moves upward, it can block the flushing pipe (302).
7. A flushing suction electrocoagulation cutter according to claim 6, characterized in that, The accidental touch prevention unit also includes: The negative pressure suction hole (311) is opened on the first stop piston (307). When the external negative pressure suction device generates a negative pressure suction effect on the suction pipe (301), it can generate a suction effect through the negative pressure suction hole (311) to make the second stop piston (308) move upward. The adjusting piston rod (312) is located at the bottom of the first stop piston (307) and is matched with the center of the second stop piston (308). When the external flushing equipment fills the flushing pipe (302) with flushing liquid, the adjusting piston rod (312) can be pushed upward by water pressure, so that the first stop piston (307) moves upward.
8. A flushing suction electrocoagulation cutter according to claim 7, characterized in that, The accidental touch prevention unit also includes: The first stop piston reset component (309) is disposed above the first stop piston (307) and is used to reset the first stop piston (307); The second stop piston reset member (310) is disposed below the second stop piston (308) and is used to reset the second stop piston (308) when needed.