Temperature control type soft tissue high-frequency welding instrument

Abstract

The invention discloses a temperature control type soft tissue high-frequency welding instrument, and belongs to the technical field of soft tissue welding, the temperature control type soft tissue high-frequency welding instrument comprises a handle part and a front end part, the front end part is provided with an execution part, and the execution part comprises an electrocoagulation mechanism and a negative pressure generation mechanism; the electrocoagulation mechanism comprises a clamping base assembly, a pen point unit and an elastic buckle assembly. In the operation process, heat energy at the pen point unit is transmitted to the bimetallic strip structure in the clamping base assembly in real time through the heat guiding structure, when the pen point unit is overheated and reaches the action temperature of the bimetallic strip structure, the deformed bimetallic strip structure drives the tripping structure to eject out the clamping head structure originally buckled in the clamping groove, and then the clamping head structure is released. And then, under the action of elastic tension of the elastic contraction structure, the overheated pen point unit can rapidly retract into the negative pressure cavity in the operation, so that the situation that heat damage is caused to soft tissue when hemostasis is carried out on the soft tissue at the wound in the operation can be effectively avoided, and postoperative recovery of a patient is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of soft tissue welding, and more specifically, to a temperature-controlled high-frequency soft tissue welding instrument. Background Technique

[0002] The high-frequency electrocoagulation pen is a type of soft tissue high-frequency welding instrument. The high-frequency electrocoagulation pen uses human protein cells as welding materials. When using the high-frequency electrocoagulation pen, first connect the cable plug of the high-frequency electrocoagulation pen to the power output port of the high-frequency device, then input all the parameters during welding into the high-frequency device, adjust the current for welding different tissues to different intensities to achieve the purpose of temperature control, so that the high-frequency current emitted by the high-frequency electrocoagulation pen rapidly raises the temperature of the tissue at the wound to 60°C - 100°C, causing protein denaturation and coagulation, thereby closing blood vessels and lymphatic vessels, preventing blood from flowing out, and achieving the hemostatic effect.

[0003] During actual use of the existing high-frequency electrocoagulation pen, it is easy for the high-frequency electrocoagulation pen to be used for too long due to the duration of the operation, resulting in overheating of the pen tip. Moreover, during the operation, doctors with highly concentrated attention usually find it difficult to detect the abnormal temperature of the pen tip of the electrocoagulation pen in a timely manner. This makes it easy for the overheated pen tip to cause thermal damage to the tissue at the patient's wound when the doctor uses the high-frequency electrocoagulation pen to stop bleeding at the patient's wound, which has an impact on the patient's postoperative recovery.

[0004] In view of this, we propose a temperature-controlled high-frequency soft tissue welding instrument. Summary of the Invention

[0005] Technical problems to be solved: The purpose of the present invention is to provide a temperature-controlled high-frequency soft tissue welding instrument, which solves the technical problems raised in the above background technique.

[0006] Technical solution: The technical solution of the present invention provides a temperature-controlled high-frequency soft tissue welding instrument, including a handle part and a front end part connected to the end of the handle part. An execution part is provided on the front end part, and the execution part includes an electrocoagulation mechanism and a negative pressure generating mechanism. A negative pressure chamber and a sliding chamber are respectively provided inside the front end part; The electrocoagulation mechanism includes a card seat assembly located in the sliding chamber, a pen tip unit located in the negative pressure chamber, and a snap component provided on the side wall of the front end part; The card seat assembly includes a base unit. A card slot is provided on the base unit. A release structure and a bimetallic sheet structure in a C-shaped structure are respectively provided in the card slot. An elastic contraction structure connected to the sliding chamber is also provided on the base unit; The pen tip unit includes a head structure and a heat conduction structure, and one end of the heat conduction structure is connected to the head structure, and the other end is connected to the bimetallic sheet structure; The snap component includes a chuck structure that is slidably inserted into the side wall of the front end and can be movably snapped into the inside of the card slot, and a sliding rheostat structure that is electrically connected to the negative pressure generating mechanism; The sliding rheostat structure includes a moving end module connected to the chuck structure and a static end module connected to the side wall of the front end.

[0007] As an alternative solution of the technical solution of this invention document, the base unit includes a base body that slides in the sliding cavity, and the card slot is arranged on the base body; An extension seat is connected to the base body. A straight groove that is adapted to the extension seat and communicates with the sliding cavity is opened at a position corresponding to the extension seat on the side wall of the front end. One end of the extension seat away from the base body passes through the straight groove and slides in the straight groove; The elastic contraction structure is a tension spring located in the sliding cavity. One end of the tension spring is connected to the end of the base body, and the other end is connected to the end of the sliding cavity.

[0008] As an alternative solution of the technical solution of this invention document, the bimetallic structure includes a C-shaped bimetallic strip in a C-shaped structure; One end of the C-shaped bimetallic strip is connected to the bottom wall of the card slot, and an outer heat insulation sleeve is connected to the other end. A heat-conducting metal sheet is connected in the inner cavity of the outer heat insulation sleeve, and the heat-conducting metal sheet is connected to the surface of the C-shaped bimetallic strip on the side close to the C-shaped bimetallic strip.

[0009] As an alternative solution of the technical solution of this invention document, the release structure includes a pushing head located in the card slot; A limiting slider is connected to the side wall of the pushing head, and a first return spring is connected to the limiting slider; A guiding longitudinal groove is opened on the side wall of the card slot. One end of the limiting slider away from the pushing head extends into the guiding longitudinal groove, and the limiting slider slides in the guiding longitudinal groove; One end of the first return spring away from the limiting slider is connected to the end of the guiding longitudinal groove; When the first return spring in the release structure is in a fully compressed state, the end of the pushing head is flush with the surface of the base body.

[0010] As an alternative solution of the technical solution of this invention document, the end structure includes a pen head and a pen rod part located in the negative pressure chamber. An insulating tail seat is connected to the end of the pen rod part; The end of the pen head is connected to a heat-conducting fixing seat, and one end of the heat-conducting fixing seat away from the pen head is connected to one end of the insulating tail seat away from the pen rod part. A temperature sensor is also connected to the heat-conducting fixing seat; One end of the pen rod part away from the insulating tail seat penetrates from the negative pressure chamber into the sliding cavity and is connected to the base body in the base unit.

[0011] As an alternative embodiment of the technical solution of the present invention document, the heat conduction structure includes a flexible heat insulation layer, and heat conduction metal wires are arranged inside the flexible heat insulation layer; One end of the flexible heat insulation layer is connected to the end of the outer heat insulation sleeve, and the other end penetrates into the base body, the pen shaft part, and the heat insulation tail seat respectively, and is connected to the end of the heat conduction fixing seat; One end of the heat conduction metal wire passes through the side wall of the flexible heat insulation layer and is connected to the heat conduction metal sheet, and the other end is connected to the end of its corresponding heat conduction fixing seat.

[0012] As an alternative embodiment of the technical solution of the present invention document, the chuck structure includes a chuck part, and a second return spring is connected to the end of the chuck part; The chuck part is slidably inserted into the side wall of the front end part, and one end of the chuck part away from the second return spring can be movably buckled into the inside of the card slot.

[0013] As an alternative embodiment of the technical solution of the present invention document, the static end module includes an insulating cylinder seat connected to the side wall of the front end part and surrounding the outer circumference of the chuck part; A resistance wire is spirally wound outside the insulating cylinder seat; A vertical slot is opened on the side wall of the insulating cylinder seat; A fixed terminal is also connected to the insulating cylinder seat; The moving end module includes a horizontal insulating rod connected to the side wall of the chuck part. A passive elastic piece is connected to one end of the horizontal insulating rod away from the chuck part, and the free end of the passive elastic piece passes through the vertical slot and closely adheres to the surface of the resistance wire.

[0014] As an alternative embodiment of the technical solution of the present invention document, the snap component further includes an outer cover shell connected to the side wall of the front end part and covering the outside of the chuck part and the insulating cylinder seat; A pulling rod is slidably inserted into the outer cover shell at a position corresponding to the chuck part, and one end of the pulling rod close to the chuck part is connected to the end of the chuck part; One end of the second return spring away from the chuck part is connected to the end of the inner cavity of the outer cover shell.

[0015] As an alternative embodiment of the technical solution of the present invention document, the negative pressure generating mechanism includes an outer flow guiding cover body. A support seat is connected to the bottom of the outer flow guiding cover body. A negative pressure hose is connected to the input end of the outer flow guiding cover body, and one end of the negative pressure hose away from the outer flow guiding cover body is connected to the side wall of the front end part and is communicated with the negative pressure chamber; A negative pressure fan is connected to the output end opening of the outer flow guiding cover body; The resistance wire, the passive elastic piece, and the fixed terminal in the static end module are all electrically connected to the negative pressure fan in the negative pressure generating mechanism.

[0016] Beneficial effects: One or more technical solutions provided in the technical solution of the present invention have at least the following technical effects or advantages: 1. During the operation, the heat energy at the pen head unit is transmitted to the bimetallic structure in the card seat assembly in real time through the heat conduction structure. When the pen head unit part overheats and reaches the action temperature of the bimetallic structure, the deformed bimetallic structure drives the tripping structure to eject the chuck structure originally buckled inside the card slot. Subsequently, under the elastic pulling force of the elastic contraction structure, the overheated pen head unit can quickly retract into the negative pressure chamber during the operation, so as to effectively avoid the situation of thermal damage to the soft tissue at the wound during hemostasis of the soft tissue at the wound during the operation, which is beneficial to the postoperative recovery of the patient.

[0017] 2. During the operation, when the pen head unit part overheats and triggers the process that the pen head unit quickly retracts into the negative pressure chamber during the operation, it plays a prompting effect, so that the doctor can understand the state of the pen head unit in the first time during the operation, and can quickly turn off the electrocoagulation pen unit when the pen head unit overheats, so as to realize the cooling treatment of the electrocoagulation pen unit.

[0018] 3. During the process of hemostasis of the soft tissue at the wound by the heated pen head unit, the smoke generated is continuously sucked into the negative pressure chamber under the suction of the negative pressure fan in the negative pressure generating mechanism, avoiding the smoke generated during the electrocoagulation hemostasis process from obstructing the doctor's line of sight and causing the doctor to be difficult to accurately judge the situation of the soft tissue to be hemostatic at the wound, which helps the doctor to complete the hemostasis work of the soft tissue at the wound more efficiently and accurately.

[0019] 4. After the overheated pen head unit retracts into the negative pressure chamber, under the negative pressure suction of the negative pressure generating mechanism, the airflow flowing into the negative pressure chamber will gather near the pen head unit, improving the heat exchange efficiency, and further helping to enhance the cooling effect on the overheated pen head unit, improving the cooling efficiency, thus shortening the cooling time of the pen head unit, enabling the device with overheated pen head unit to be quickly put into use again. And, when the pen head unit overheats and the deformed bimetallic structure drives the tripping structure to eject the chuck structure originally buckled in the card slot, the chuck structure drives the passive elastic piece in the moving end module to slide on the surface of the resistance wire in the static end module, so that the number of turns of the coil received between the fixed terminal and the passive elastic piece increases and the resistance value increases, so that the output power of the negative pressure fan also decreases accordingly. When the chuck structure completely disengages from the card slot and retracts into the negative pressure chamber under the elastic pulling force of the elastic contraction structure, under the limiting action of the base body, the distance between the passive elastic piece and the fixed terminal no longer changes, so that when the overheated pen head unit retracts into the negative pressure chamber, the power of the negative pressure generating mechanism is lowered, so that while ensuring the cooling effect on the overheated pen head unit, it is also beneficial to save energy.

[0020] 5. The real-time monitoring of the temperature of the pen tip is indirectly achieved through the temperature sensor connected to the heat-conducting fixing base. The temperature sensor then transmits the detection signal to the external main controller. After the pen tip unit retracts into the negative pressure chamber, medical staff can always know the temperature of the pen tip in the pen tip unit through the value displayed on the main controller display screen. When the temperature of the pen tip drops to an appropriate range, the extension base is used to drive the base unit located in the sliding chamber to move. When the base body in the base unit abuts against the end of the sliding chamber, the clamping head part aligns with the clamping groove, and under the elastic force of the second return spring, the clamping head part in the clamping head structure quickly snaps into the clamping groove to achieve the snap fixation of the base unit, facilitating the operator to readjust the retracted pen tip unit to the extended state, and further facilitating the continuation of the subsequent electrocoagulation hemostasis work. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 For the present invention Figure 1 Partial enlarged schematic view of part A in the present invention.

[0023] Figure 3 It is a side view of the overall structure of the present invention.

[0024] Figure 4 For the present invention Figure 3 Partial enlarged schematic view of part B in the present invention.

[0025] Figure 5 It is a schematic diagram of the internal structure of the front end part in the present invention.

[0026] Figure 6 For the present invention Figure 5 Partial enlarged schematic view of part D in the present invention.

[0027] Figure 7 For the present invention Figure 6 Partial enlarged schematic view of part E in the present invention.

[0028] Figure 8 For the present invention Figure 7 Partial enlarged schematic view of part G in the present invention.

[0029] Figure 9 For the present invention Figure 6 Partial enlarged schematic view of part F in the present invention.

[0030] Figure 10 For the present invention Figure 5 Partial enlarged schematic view of part C in the present invention.

[0031] Figure 11This is a partial cross-sectional view of the pen barrel part, heat-insulating tail seat, and heat-conducting fixing seat in the present invention.

[0032] Figure 12 This is the present invention Figure 11 A partial enlarged schematic view of part H in it.

[0033] Explanation of the reference numerals in the figure: 10. Handle part; 20. Front end part; 301. Pen barrel part; 302. Outer housing; 303. Negative pressure hose; 304. Outer flow guide cover body; 305. Heat-conducting fixing seat; 306. Pen tip part; 307. Heat-insulating tail seat; 308. Negative pressure fan; 309. Tensile spring; 310. Insulating cylinder seat; 311. Resistance wire; 312. Base body; 313. Extension seat; 315. Limit slider; 316. Pulling handle rod; 318. Clamping head part; 319. Pushing head part; 320. C-shaped bimetallic sheet; 321. Outer heat-insulating sleeve; 322. Heat-conducting metal sheet; 323. Flexible heat-insulating layer; 324. Heat-conducting metal wire; 325. Passive elastic sheet; 326. Fixed terminal; 327. Temperature sensor. Specific embodiments

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0036] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0037] Referring to Figure 1 、 Figure 3 、 Figure 5 and Figure 6 , embodiments of the present invention provide a temperature-controlled high-frequency soft tissue welding instrument, including a handle portion 10 and a front end portion 20 connected to the end of the handle portion 10. An execution portion is provided on the front end portion 20, and the execution portion includes an electrocoagulation mechanism and a negative pressure generating mechanism. A negative pressure chamber and a sliding chamber are respectively provided inside the front end portion 20, and one end of the negative pressure chamber is communicated with the atmosphere; The electrocoagulation mechanism includes a card seat assembly located in the sliding chamber, a pen head unit located in the negative pressure chamber, and a snap component provided on the side wall of the front end portion 20; The card seat assembly includes a base unit. A card slot is provided on the base unit, and a release structure and a bimetallic sheet structure in a C-shaped structure are respectively provided in the card slot. An elastic contraction structure connected to the sliding chamber is also provided on the base unit; The pen head unit includes a head structure and a heat conduction structure. One end of the heat conduction structure is connected to the head structure, and the other end is connected to the bimetallic sheet structure; The snap component includes a head structure slidably inserted into the side wall of the front end portion 20 and capable of being movably snapped into the card slot, and a sliding rheostat structure electrically connected to the negative pressure generating mechanism; The sliding rheostat structure includes a moving end module connected to the head structure and a static end module connected to the side wall of the front end portion 20.

[0038] During the operation, the heat energy at the pen head unit is transmitted to the bimetallic sheet structure in the card seat assembly in real time through the heat conduction structure. When the pen head unit part becomes overheated and reaches the action temperature of the bimetallic sheet structure, the deformed bimetallic sheet structure drives the release structure to eject the head structure originally snapped in the card slot. Subsequently, under the elastic pulling force of the elastic contraction structure, the overheated pen head unit can quickly retract into the negative pressure chamber during the operation, so as to effectively avoid the situation of thermal damage to the soft tissue at the wound during the hemostasis of the soft tissue during the operation, which is beneficial to the postoperative recovery of the patient.

[0039] During the operation, when overheating occurs at the pen tip unit and triggers the pen tip unit to quickly retract into the negative pressure chamber during the operation, it plays a prompting effect, enabling the doctor to immediately understand the state of the pen tip unit during the operation and quickly cut off the power supply of the electrocoagulation pen unit when overheating occurs at the pen tip unit, so as to achieve the cooling treatment of the electrocoagulation pen unit.

[0040] Referring to Figure 5 and Figure 6 , an embodiment of the present invention provides a temperature-controlled high-frequency soft tissue welder. The base unit includes a base body 312 that slides in a sliding cavity, and a card slot is provided on the base body 312; An extension seat 313 is connected to the base body 312. A straight groove that is adapted to the extension seat 313 and communicates with the sliding cavity is opened at a position corresponding to the side wall of the front end portion 20. One end of the extension seat 313 away from the base body 312 passes through the straight groove and slides in the straight groove; The elastic contraction structure is a tension spring 309 located in the sliding cavity. One end of the tension spring 309 is connected to the end of the base body 312, and the other end is connected to the end of the sliding cavity.

[0041] Referring to Figures 5 to 7 , an embodiment of the present invention provides a temperature-controlled high-frequency soft tissue welder. The chuck structure includes a chuck portion 318, and a second return spring is connected to the end of the chuck portion 318; The chuck portion 318 is slidably inserted into the side wall of the front end portion 20, and one end of the chuck portion 318 away from the second return spring can be movably buckled into the inside of the card slot.

[0042] Referring to Figure 5 , Figure 6 and Figure 9 , an embodiment of the present invention provides a temperature-controlled high-frequency soft tissue welder. The static end module includes an insulating cylinder base 310 that is connected to the side wall of the front end portion 20 and is wound around the outer periphery of the chuck portion 318; A resistance wire 311 is spirally wound outside the insulating cylinder base 310; A vertical slot is opened on the side wall of the insulating cylinder base 310; A fixed terminal 326 is further connected to the insulating cylinder base 310; The moving end module includes a horizontal insulating rod connected to the side wall of the chuck portion 318. A passive elastic piece 325 is connected to one end of the horizontal insulating rod away from the chuck portion 318, and the free end of the passive elastic piece 325 passes through the vertical slot and closely adheres to the surface of the resistance wire 311.

[0043] Referring to Figure 1 , Figure 3 , Figure 5 , Figure 6, an embodiment of the present invention provides a temperature-controlled high-frequency soft tissue welder. The snap component further includes an outer housing 302 connected to the side wall of the front end 20 and covering the outside of the clamping head 318 and the insulating cylinder base 310; A pulling rod 316 is slidably inserted at a position corresponding to the clamping head 318 on the outer housing 302, and one end of the pulling rod 316 close to the clamping head 318 is connected to the end of the clamping head 318; The end of the second return spring away from the clamping head 318 is connected to the end of the inner cavity of the outer housing 302.

[0044] Refer to Figure 1 , Figure 3 and Figure 4 , an embodiment of the present invention provides a temperature-controlled high-frequency soft tissue welder. The negative pressure generating mechanism includes an outer flow guiding cover 304. A support base is connected to the bottom of the outer flow guiding cover 304. A negative pressure hose 303 is connected to the input end of the outer flow guiding cover 304, and one end of the negative pressure hose 303 away from the outer flow guiding cover 304 is connected to the side wall of the front end 20 and is in communication with the negative pressure chamber; A negative pressure fan 308 is connected to the output end opening of the outer flow guiding cover 304; The heating wire 311, the passive elastic piece 325 and the fixed terminal 326 in the static end module are all electrically connected to the negative pressure fan 308 in the negative pressure generating mechanism.

[0045] During the process of stopping bleeding on the soft tissue at the wound by the heated pen tip unit, the smoke generated is continuously sucked into the negative pressure chamber under the suction of the negative pressure fan 308 in the negative pressure generating mechanism, avoiding the smoke generated during the electrocoagulation hemostasis process from obstructing the doctor's line of sight and causing the doctor to have difficulty accurately judging the situation of the part to be stopped bleeding at the wound, which helps the doctor to complete the hemostasis work on the soft tissue at the wound more efficiently and accurately.

[0046] Refer to Figures 5 to 8 , an embodiment of the present invention provides a temperature-controlled high-frequency soft tissue welder. The bimetal structure includes a C-shaped bimetal 320 in a C-shaped structure. The C-shaped bimetal 320 is a bimetal in a C-shaped structure, and the operating temperature of the above bimetal is: 100°C to 160°C; One end of the C-shaped bimetal 320 is connected to the bottom wall of the card slot, and the other end is connected with an outer heat-insulating sleeve 321. The outer heat-insulating sleeve 321 is made of a heat-resistant heat-insulating material. A heat-conducting metal sheet 322 is connected in the inner cavity of the outer heat-insulating sleeve 321, and the side of the heat-conducting metal sheet 322 close to the C-shaped bimetal 320 is connected to the surface of the C-shaped bimetal 320. The heat-conducting metal sheet 322 is heat-insulated by the outer heat-insulating sleeve 321.

[0047] Refer to Figures 5 to 7, an embodiment of the present invention provides a temperature-controlled high-frequency soft tissue welder, and the tripping structure includes a pushing head 319 located in the card slot; A limiting slider 315 is connected to the side wall of the pushing head 319, and a first return spring is connected to the limiting slider 315; A guiding longitudinal groove is formed on the side wall of the card slot. One end of the limiting slider 315 away from the pushing head 319 extends into the guiding longitudinal groove, and the limiting slider 315 slides in the guiding longitudinal groove; One end of the first return spring away from the limiting slider 315 is connected to the end of the guiding longitudinal groove; When the first return spring in the tripping structure is in a completely compressed state, the end of the pushing head 319 is flush with the surface of the base body 312.

[0048] Refer to Figure 1 , Figure 2 , Figure 10 and Figure 11 , an embodiment of the present invention provides a temperature-controlled high-frequency soft tissue welder. The end structure includes a pen head 306 and a pen rod part 301 located in the negative pressure chamber. An insulating tail seat 307 is connected to the end of the pen rod part 301, and the insulating tail seat 307 is made of insulating material; A heat-conducting fixing seat 305 is connected to the end of the pen head 306, and one end of the heat-conducting fixing seat 305 away from the pen head 306 is connected to one end of the insulating tail seat 307 away from the pen rod part 301. The heat-conducting fixing seat 305 is made of heat-conducting material; A temperature sensor 327 is also connected to the heat-conducting fixing seat 305, and the temperature sensor 327 is a wireless temperature sensor; A button for controlling the opening and closing of the pen head 306 in the end structure is provided on the handle part 10 (such as Figure 1 and Figure 3 shown).

[0049] One end of the pen rod part 301 away from the insulating tail seat 307 penetrates through the negative pressure chamber and enters the sliding chamber and is connected to the base body 312 in the base unit.

[0050] Refer to Figures 5 to 8 , Figure 10 and Figure 11 , an embodiment of the present invention provides a temperature-controlled high-frequency soft tissue welder. The heat conduction structure includes a flexible heat insulation layer 323. The flexible heat insulation layer 323 is made of flexible high-temperature resistant heat insulation material. A heat conduction metal wire 324 is arranged inside the flexible heat insulation layer 323, and the heat conduction metal wire 324 is heat-insulated through the flexible heat insulation layer 323; One end of the flexible thermal insulation layer 323 is connected to the end of the outer thermal insulation sleeve 321, and the other end penetrates into the base body 312, the pen shaft part 301, and the heat insulation tail seat 307 respectively, and is connected to the end of the heat conduction fixing seat 305; One end of the heat conduction metal wire 324 passes through the side wall of the flexible thermal insulation layer 323 and is connected to the heat conduction metal sheet 322, and the other end is connected to the end of the corresponding heat conduction fixing seat 305.

[0051] After the heat generated during the operation of the pen tip 306 is transferred to the heat conduction fixing seat 305, the heat energy is continuously conducted to the heat conduction metal sheet 322 in the bimetallic structure through the heat conduction metal wire 324 in the heat conduction structure, and then the heat conduction metal sheet 322 continuously conducts the heat energy to the C-shaped bimetallic sheet 320. And when the temperature at the pen tip 306 reaches the action temperature of the C-shaped bimetallic sheet 320, during the process that the free end of the C-shaped bimetallic sheet 320 gradually deforms and drives the push head 319 in the release structure to move, the first return spring gradually changes from the relaxed state to the compressed state. And when the first return spring is in the fully compressed state, the end of the push head 319 is flush with the surface of the base body 312. At this time, the clamping head 318 originally buckled in the card slot completely disengages from the card slot. When the temperature acting on the C-shaped bimetallic sheet 320 is lower than its action temperature, the C-shaped bimetallic sheet 320 gradually returns to its initial form.

[0052] When the end structure completely retracts into the negative pressure chamber, under the elastic force of the second return spring, the end of the clamping head 318 abuts against the surface of the base body 312.

[0053] After the overheated pen tip unit retracts into the negative pressure chamber, under the negative pressure suction of the negative pressure generating mechanism, the airflow flowing into the negative pressure chamber will gather near the pen tip unit, improving the efficiency of heat exchange. This further helps enhance the cooling effect on the overheated pen tip unit, improving the cooling efficiency, thus shortening the cooling time of the pen tip unit, enabling the device with an overheated pen tip unit to be quickly put into use again. Moreover, during the process when the pen tip unit overheats and the deformed bimetal structure drives the tripping structure to eject the chuck structure originally buckled in the card slot, the chuck structure drives the passive elastic piece 325 in the moving end module to slide on the surface of the resistance wire 311 in the static end module, increasing the number of turns of the coil received between the fixed terminal 326 and the passive elastic piece 325 and increasing the resistance value, causing the output power of the negative pressure fan 308 to also decrease. During the process when the chuck structure completely disengages from the card slot and retracts into the negative pressure chamber under the elastic pulling force of the elastic contraction structure, under the limiting effect of the base body 312, the distance between the passive elastic piece 325 and the fixed terminal 326 no longer changes, enabling the power of the negative pressure generating mechanism to be lowered during the retraction process of the overheated pen tip unit into the negative pressure chamber. This way, while ensuring the cooling effect on the overheated pen tip unit, it is also beneficial to save energy consumption.

[0054] The real-time monitoring of the temperature of the pen head 306 is indirectly achieved through the temperature sensor 327 connected to the heat-conducting fixing seat 305. The temperature sensor 327 then transmits the detection signal to the external main controller. After the pen tip unit retracts into the negative pressure chamber, medical staff can always understand the temperature of the pen head 306 in the pen tip unit through the value displayed on the main controller display screen. When the temperature of the pen head 306 drops to an appropriate range, the base unit located in the sliding cavity is driven to move through the extension base 313. When the base body 312 in the base unit abuts against the end of the sliding cavity, the chuck part 318 aligns with the card slot, and under the elastic force of the second return spring, the chuck part 318 in the chuck structure quickly buckles into the card slot, realizing the buckling and fixing of the base unit, facilitating the operator to readjust the retracted pen tip unit to the extended state, and thus facilitating the continuation of subsequent electrocoagulation hemostasis work.

[0055] The main controller mentioned in this article can be a conventional known device such as a computer that plays a control role, which will not be elaborated here.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A temperature-controlled high-frequency soft tissue welder, characterized in that: It includes a handle part (10) and a front end part (20) connected to the end of the handle part (10). An execution part is provided on the front end part (20), and the execution part includes an electrocoagulation mechanism and a negative pressure generating mechanism. A negative pressure chamber and a sliding chamber are respectively arranged inside the front end part (20); The electrocoagulation mechanism includes a card seat assembly located in the sliding chamber, a pen head unit located in the negative pressure chamber, and a snap component arranged on the side wall of the front end part (20); The card seat assembly includes a base unit. A card slot is provided on the base unit. A release structure and a C-shaped bimetal structure are respectively arranged in the card slot. An elastic contraction structure connected to the inside of the sliding chamber is also provided on the base unit; The pen head unit includes a head end structure and a heat conduction structure. One end of the heat conduction structure is connected to the head end structure, and the other end is connected to the bimetal structure; The snap component includes a head structure slidably inserted into the side wall of the front end part (20) and capable of being movably snapped into the inside of the card slot, and a sliding rheostat structure electrically connected to the negative pressure generating mechanism; The sliding rheostat structure includes a moving end module connected to the head structure and a static end module connected to the side wall of the front end part (20).

2. The temperature-controlled high-frequency soft tissue welder according to claim 1, wherein: The base unit includes a base body (312) sliding in the sliding chamber, and the card slot is arranged on the base body (312); An extension seat (313) is connected to the base body (312). A straight groove adapted to the extension seat (313) and communicating with the sliding chamber is opened at a position corresponding to the extension seat (313) on the side wall of the front end part (20). One end of the extension seat (313) away from the base body (312) passes through the straight groove and slides in the straight groove; The elastic contraction structure is a tension spring (309) located in the sliding chamber. One end of the tension spring (309) is connected to the end of the base body (312), and the other end is connected to the end of the sliding chamber.

3. The temperature-controlled high-frequency soft tissue welder according to claim 2, characterized in that: The bimetal structure includes a C-shaped bimetal (320) in a C-shaped structure; One end of the C-shaped bimetal (320) is connected to the bottom wall of the card slot, and an outer heat insulation sleeve (321) is connected to the other end. A heat conduction metal sheet (322) is connected in the inner cavity of the outer heat insulation sleeve (321), and the heat conduction metal sheet (322) is connected to the surface of the C-shaped bimetal (320) on the side close to the C-shaped bimetal (320).

4. The temperature-controlled high-frequency soft tissue welder according to claim 2, wherein: The release structure includes a push head (319) located in the card slot; A limit slider (315) is connected to the side wall of the push head (319), and a first return spring is connected to the limit slider (315); A guiding longitudinal groove is opened on the side wall of the card slot. One end of the limit slider (315) away from the push head (319) extends into the guiding longitudinal groove, and the limit slider (315) slides in the guiding longitudinal groove; One end of the first return spring away from the limit slider (315) is connected to the end of the guiding longitudinal groove; When the first return spring in the release structure is in a fully compressed state, the end of the push head (319) is flush with the surface of the base body (312).

5. The temperature-controlled high-frequency soft tissue welder according to claim 3, characterized in that: The end structure includes a pen tip portion (306) and a pen rod portion (301) located in the negative pressure chamber. An end of the pen rod portion (301) is connected with a heat insulation tail seat (307); An end of the pen tip portion (306) is connected with a heat conduction fixing seat (305), and one end of the heat conduction fixing seat (305) far from the pen tip portion (306) is connected to one end of the heat insulation tail seat (307) far from the pen rod portion (301). A temperature sensor (327) is also connected to the heat conduction fixing seat (305); One end of the pen rod portion (301) far from the heat insulation tail seat (307) penetrates into the sliding chamber from the negative pressure chamber and is connected with a base body (312) in the base unit.

6. The temperature-controlled high-frequency soft tissue welder according to claim 5, characterized in that: The heat conduction structure includes a flexible heat insulation layer (323), and a heat conduction metal wire (324) is arranged inside the flexible heat insulation layer (323); One end of the flexible heat insulation layer (323) is connected with an end of an outer heat insulation sleeve (321), and the other end penetrates into the base body (312), the pen rod portion (301) and the heat insulation tail seat (307) respectively and is connected with an end of the heat conduction fixing seat (305); One end of the heat conduction metal wire (324) passes through the side wall of the flexible heat insulation layer (323) and is connected with a heat conduction metal sheet (322), and the other end is connected with an end of the corresponding heat conduction fixing seat (305).

7. The temperature-controlled high-frequency soft tissue welder according to claim 2, wherein: The chuck structure includes a chuck portion (318), and a second return spring is connected to an end of the chuck portion (318); The chuck portion (318) is slidably inserted into the side wall of the front end portion (20), and one end of the chuck portion (318) far from the second return spring can be movably buckled into the card slot.

8. The temperature-controlled high-frequency soft tissue welder according to claim 7, characterized in that: The static end module includes an insulating cylinder seat (310) connected to the side wall of the front end portion (20) and arranged around the outer periphery of the chuck portion (318); A resistance wire (311) is spirally wound around the outer insulating cylinder seat (310); A vertical slot is formed in the side wall of the insulating cylinder seat (310); A fixed terminal (326) is also connected to the insulating cylinder seat (310); The moving end module includes a horizontal insulating rod connected to the side wall of the chuck portion (318). A passive elastic piece (325) is connected to one end of the horizontal insulating rod far from the chuck portion (318), and the free end of the passive elastic piece (325) passes through the vertical slot and closely adheres to the surface of the resistance wire (311).

9. The temperature-controlled high-frequency soft tissue welder according to claim 8, characterized in that: The snap component further includes an outer cover shell (302) connected to the side wall of the front end portion (20) and covering the outside of the chuck portion (318) and the insulating cylinder seat (310); A pulling handle rod (316) is slidably inserted into a position corresponding to the chuck portion (318) on the outer cover shell (302), and one end of the pulling handle rod (316) close to the chuck portion (318) is connected to the end of the chuck portion (318); One end of the second return spring far from the chuck portion (318) is connected to the end of the inner cavity of the outer cover shell (302).

10. The temperature-controlled high-frequency soft tissue welder according to claim 8, characterized in that: The negative pressure generating mechanism includes an outer flow guiding cover body (304), a support base is connected to the bottom of the outer flow guiding cover body (304), a negative pressure hose (303) is connected to the input end of the outer flow guiding cover body (304), and one end of the negative pressure hose (303) far away from the outer flow guiding cover body (304) is connected to the side wall of the front end part (20) and communicated with the negative pressure chamber; A negative pressure fan (308) is connected to the opening at the output end of the outer flow guiding cover body (304); The heating wire (311), the passive elastic piece (325) and the fixed terminal (326) in the static end module are all electrically connected to the negative pressure fan (308) in the negative pressure generating mechanism.

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