CN106388930B - Cold and hot knife workstation and control method - Google Patents
Cold and hot knife workstation and control method Download PDFInfo
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- CN106388930B CN106388930B CN201610874755.3A CN201610874755A CN106388930B CN 106388930 B CN106388930 B CN 106388930B CN 201610874755 A CN201610874755 A CN 201610874755A CN 106388930 B CN106388930 B CN 106388930B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/02—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00017—Electrical control of surgical instruments
- A61B2017/00022—Sensing or detecting at the treatment site
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
- A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
- A61B2018/00017—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids with gas
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00607—Coagulation and cutting with the same instrument
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00696—Controlled or regulated parameters
- A61B2018/00714—Temperature
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00791—Temperature
Abstract
The invention relates to a cold and hot knife workstation, which comprises a high-frequency electric knife system, a cold knife system and a comprehensive control system; the comprehensive control system controls the high-frequency electric knife system and the cold knife system to simultaneously or sequentially convey high-frequency current and refrigerant to the knife head of the surgical knife device. The invention has reasonable structure, advanced design, safe and reliable use, low cost, high integration, strong flexibility and long service life. The invention realizes the perfect combination of the cold knife and the hot knife through the workstation, and the combination of the cold knife and the hot knife generates unexpected effects, is not simply combined, has the operation effect when the hot knife is used for cutting, has the low-temperature protection effect of the cold knife, and cools the hot knife by freezing and taking out tissues, thereby greatly improving the operation effect.
Description
Technical Field
The invention relates to a cold and hot knife workstation and a control method.
Background
In 1967, cryosurgery therapeutic apparatuses were developed which used carbon dioxide or nitrous oxide as a refrigerant and reduced the temperature to-70 to-80 ℃ by using a method in which a high pressure gas was throttled through a small hole by joule-Shang Msun effect to generate a low temperature by adiabatic expansion. Freezing can cause water in cells of human tissue to crystallize into ice, and the cells stop dividing and thawing, blood flow stops, and microthrombus forms, resulting in cell death. Cryotherapy is commonly used for palliative excision of malignant tumors, excision of early lung cancer in bronchi, excision of benign tumors, hemostasis, removal of respiratory tract foreign bodies, and the like. Advantages of cryotherapy: the depth of freezing is easy to control, so that the risk of perforation is low; cartilage is not damaged in the treatment process; can be used for patients with pacemakers because of no high-frequency electric effect; the fire danger is avoided; the stent is not damaged, and can be used for treating benign and malignant tissue hyperplasia in the stent.
The use of a high frequency electric knife in clinic has been over 70 years since 1920, and the high frequency electric knife has been an electrosurgical instrument for tissue cutting instead of a mechanical surgical knife. The tissue is heated when the high-frequency high-voltage current generated by the tip of the effective electrode contacts with the body, so that the separation and solidification of the body tissue are realized, and the purposes of cutting and hemostasis are achieved. At present, the medical device is widely applied not only in direct vision surgery, such as general surgery, external chest, external brain, facial surgery and maxillofacial surgery, but also in various endoscopic surgery, such as: laparoscope, prostatectomy, gastroscope, cystoscope, hysteroscope, etc.
Because the high-frequency electrotome can cut and coagulate simultaneously, the high-frequency electrotome is widely applied to operations (such as ligation of abdominal tracts and excision of prostatic urethra swelling substances) which are difficult to access and implement by mechanical surgical scalpels.
The high-frequency electrotome has outstanding coagulation effect, so that the electrotome can be widely applied to diffuse blood seepage parts such as liver, spleen, thyroid, mammary gland and lung operations.
Disclosure of Invention
The invention aims to solve the technical problem of providing a cold and hot knife workstation which is reasonable in design, compact in structure and convenient to use and a control method.
In order to solve the problems, the invention adopts the following technical scheme:
a cold and hot knife workstation comprises a high-frequency electric knife system, a cold knife system and a comprehensive control system;
the comprehensive control system controls the high-frequency electric knife system and the cold knife system to simultaneously or sequentially convey high-frequency current and refrigerant to the knife head of the surgical knife device.
As a further improvement of the above technical scheme:
the integrated control system comprises a cold and hot control unit processor and a cold and hot workstation output interface; the cold and hot work station output interface conveys the high-frequency circuit and the refrigerant to the knife head end of the surgical knife device.
The high-frequency electric knife system comprises a high-frequency electric knife generating module and a high-frequency electric knife therapeutic machine control module;
the high-frequency electric knife generating module comprises a high-frequency high-voltage generator and a high-frequency electric knife interface;
the control module of the high-frequency electrotome therapeutic machine comprises a control switch module for controlling the high-frequency high-voltage generator;
the cold and hot control unit processor controls the control switch module;
the high-frequency current generated by the high-frequency high-voltage generator enters the cold and hot work station output interface through the high-frequency electrotome interface.
The cold knife system comprises a refrigerant gas source, a control module of the cryosurgery therapeutic machine and a cryosurgery knife interface;
The control module of the cryosurgery therapeutic machine comprises a refrigerant control valve;
the cold and hot control unit processor controls the on-off and/or opening degree of the refrigerant control valve;
the refrigerant control valve controls the refrigerant in the refrigerant gas source to enter the cold and hot workstation output interface through the cold scalpel interface.
The cold knife system further comprises a refrigerant pressure adjusting unit for adjusting the output air pressure of the refrigerant air source and/or a refrigerant pressure detecting unit for detecting the output air pressure of the refrigerant air source;
the refrigerant pressure adjusting unit and/or the refrigerant pressure detecting unit are/is arranged on a gas path between the refrigerant gas source and the refrigerant control valve;
the control module of the cryosurgery therapeutic machine also comprises a freezing temperature detection unit for detecting the temperature of the refrigerant at the interface of the cryosurgery knife;
the freezing temperature detection unit is electrically connected with the cold and hot control unit processor in one way or in two directions.
The integrated control system also comprises a cold and hot work station display unit and/or a cold and hot work station setting unit;
the output end of the cold and hot control unit processor is electrically connected with the input end of the cold and hot work station display unit, and/or the input end of the cold and hot work station setting unit is electrically connected with the output end of the cold and hot work station display unit.
The high-frequency electrotome system further comprises an inert gas module;
The inert gas module comprises an inert gas source; the inert gas is argon
Inert gas in the inert gas source enters the cold and hot workstation output interface through the inert gas control valve.
The inert gas module further comprises an inert gas pressure adjusting unit for adjusting the output pressure of the inert gas source and/or an inert gas pressure detecting unit for detecting the output pressure of the inert gas source;
the inert gas pressure adjusting unit and/or the inert gas pressure detecting unit are/is arranged between the inert gas source and the inert gas control valve.
The control method of the cold and hot knife workstation comprises the following steps of: the cold and hot control unit processor is used for controlling the inert gas control valve, the refrigerant control valve and the control switch module, and the refrigerant source is used for inputting the refrigerant to the cold and hot work station output interface at the same time or after the high-frequency electric knife interface is used for inputting the high-frequency current to the cold and hot work station output interface and the inert gas source is used for inputting the inert gas to the cold and hot work station output interface.
The control method of the cold and hot knife workstation comprises the following steps of: the cold and hot control unit processor controls the refrigerant control valve and the control switch module, and the refrigerant gas source inputs the refrigerant to the cold and hot work station output interface at the same time or after the high-frequency electric knife interface inputs the high-frequency current to the cold and hot work station output interface.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in:
the invention has reasonable structure, advanced design, safe and reliable use, low cost, high integration, strong flexibility and long service life. The invention realizes the perfect combination of the cold knife and the hot knife through the workstation, and the combination of the cold knife and the hot knife generates unexpected effects, is not simply combined, has the operation effect when the hot knife is used for cutting, has the low-temperature protection effect of the cold knife, and cools the hot knife by freezing and taking out tissues, thereby greatly improving the operation effect.
The patent integrates two treatment means together, a doctor can change the treatment method in time according to the state of illness and the current situation in operation, and the patient can obtain the optimal treatment.
The invention develops a cold-hot surgical knife integrating a cryoprobe and an electrotome electrode, firstly cools the focus part in the operation, then cuts the focus part by using the electrotome, prevents the damage of current heat to surrounding tissues, can effectively reduce the bleeding amount in the operation, reduces postoperative complications and is beneficial to the rapid recovery of wounds of patients. As a preferable scheme, the product has the functions of independent electrotome and cryotherapy. The product can be used alone with an electrotome or a cryosurgery knife. The electric knife control module and the cryotherapeutic machine control module which are independent are arranged, and the two modules are not interfered with each other and can independently operate. The product has the function of simultaneously using electrotome and cryotherapy. The electrotome and the cryotherapy are simultaneously carried out at different parts of the same patient. The product has an output port integrating freezing and electric knife, and can be used with the cold knife and the hot knife, and one knife can be used as the freezing knife or the electric knife and can be switched at any time in use. The product has the function of outputting the electrode of the internal precooling electrotome. The temperature of the electrotome electrode is reduced by the refrigerating system in the operation process, so that the electrotome can continuously work. The product operation panel is provided with one or more cold and hot knife interfaces special for the product.
The workstation is connected with the scalpel through the transition joint 31, the output joint 30, the right connecting joint 51, the inert gas conveying pipe 32 and the refrigerant high-frequency conveying pipe 33, the flexibility of the workstation is increased through the inert gas conveying pipe 32 and the refrigerant high-frequency conveying pipe 33, and the rigidity of the workstation is ensured through the transition joint 31, the output joint 30 and the right connecting joint 51; the application range is enlarged, the use is flexible, the connection is firm, and the device is firm and durable. The refrigerant pipeline is reasonable in design, good in air tightness, safe and reliable, space-saving, convenient to detach, good in sealing effect, and capable of reducing loss in the conveying process, screw threads are compressed, space is greatly saved in a gap channel, the volume is reduced, the shuttle-type structure is good in air tightness, compression is firm, and through insulation arrangement, safety and reliability are achieved, so that current can be guaranteed to reach an operation end smoothly, and safety and reliability are achieved. The position detection device can ensure reliable and firm installation position. Through position detection device, judge the break-make through alarm circuit, convenient intelligent is convenient for realize the automation.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of embodiment 2 of the present invention.
Fig. 3 is a schematic structural view of a connector device according to embodiment 1 of the present invention.
Fig. 4 is a schematic exploded view of the output connector of the present invention.
Fig. 5 is a schematic structural view of the right connecting joint of the present invention.
Fig. 6 is a schematic structural view of the transition joint of the present invention.
Fig. 7 is a block diagram of a control system according to embodiment 1 of the present invention.
Fig. 8 is a block diagram of a control system according to embodiment 2 of the present invention.
Fig. 9 is a schematic structural view of a connector device according to embodiment 2 of the present invention.
Wherein: 1. a radio frequency electrode; 2. a cold head; 3. a central tube; 4. an inner sleeve; 5. an outer sleeve; 6. a guide seat; 7. a front guide outer spigot; 8. a fixing seat; 9. a vent fitting; 10. an outer compression sleeve; 11. an inner support sleeve; 12. a connector; 13. a tailstock quick-change connector; 14. an insulating sealing sleeve; 15. an orifice; 16. an inert gas passage; 17. sliding seal ring; 19. a vent hole; 21. a first refrigerant passage; 22. a second refrigerant passage;
30. an output joint; 31. a transition joint; 32. an inert gas delivery tube; 33. a refrigerant high-frequency conveying pipe; 34. an inner tube; 35. an outer tube; 36. a circuit line channel; 37. a left positioning end; 38. an output seat; 39. a left second inner spigot; 40. a first middle through hole; 41. a first refrigerant circuit path; 42. a first right spigot; 43. a first right connection hole; 44. a first insulating bush; 45. a first conductive base; 46. a first inner through hole screw; 47. a first connection bushing; 48. a first return air channel; 49. a first bobbin case; 50. a first right connecting sleeve; 51. a right connecting joint; 52. a right lock nut; 53. a second bobbin case; 54. a second left shuttle mouth; 55. a second right threaded shaft; 56. a second middle through hole; 57. a second outer shoulder; 58. a second radial through hole; 59. a right second outer spigot; 60. a transition seat; 61. a third left radial hole; 62. a third insulating radial sleeve; 63. a third right radial hole; 64. a third axial insulating sleeve; 65. a third conductive base; 67. a proximity position switch; 68. a return spring; 69. a position detecting lever; 70. a third inert gas passage; 71. a third left middle inner spigot; 72. a third left middle inner stop hole; 91. an inert gas source; 92. an inert gas pressure adjusting unit; 93. an inert gas pressure detection unit; 94. a high frequency high voltage generator; 95. a control switch module; 96. an inert gas control valve; 97. a control module of the high-frequency electric knife therapeutic machine; 98. a high-frequency electrotome interface; 99. a refrigerant gas source; 100. a refrigerant pressure adjusting unit; 101. a refrigerant pressure detection unit; 102. a cryosurgery therapeutic machine control module; 103. a refrigerant control valve; 104. a cryosurgical knife interface; 105. a freezing temperature detection unit; 106. a cold and hot work station display unit; 107. a cold and hot work station setting unit; 108. a cold and hot control unit processor; 109. and an output interface of the cold and hot work station.
Detailed Description
Example 1: as shown in fig. 1, the present embodiment includes a high-frequency electric knife device including a radio-frequency electrode 1 for thermally resecting tissue and a conductor for delivering an electric current to the radio-frequency electrode 1, and a freezing device;
the refrigerating device comprises a cold head 2 for cold cutting off tissues and a pipeline for cooling and refrigerating the cold head 2;
the high-frequency electrotome device and the refrigerating device are integrated into a whole.
Further, it is preferable that the rf electrode 1 is externally arranged at the left end of the cold head 2, or the rf electrode 1 is externally arranged at one side of the cold head 2.
Further, the cooling device comprises a central tube 3, an inner sleeve 4, an orifice 15, a first refrigerant channel 21 and a second refrigerant channel 22, wherein the left end of the central tube 3 is connected with the right side of the cold head 2, the inner sleeve 4 is sleeved on the central tube 3, the orifice 15 is arranged on the left end or the outer side wall of the central tube 3, the first refrigerant channel 21 is arranged in an inner hole of the inner sleeve 4, and the second refrigerant channel 22 is arranged between the central tube 3 and the inner sleeve 4; the cold head 2 is connected with the left end of the inner sleeve 4 in a sealing way;
the first refrigerant passage 21 communicates with the second refrigerant passage 22 through the orifice 15. As a structural modification, the center tube 3 and the inner tube 4 may be provided independently and side by side.
The central tube 3, the inner tube 4 and the outer tube 5 are hoses, preferably having a wall thickness of 1mm or less, and more preferably 0.05 to 0.1 mm.
Further, the device comprises a connector 12 arranged at the right end of the inner sleeve 4, a tailstock quick-change joint 13 is arranged at the right end of the connector 12, an outer compression sleeve 10 and an inner support sleeve 11 for compressing the right end of the inner sleeve 4 are arranged in the connector 12, and an insulating sealing sleeve 14 is arranged between the outer side wall of the central tube 3 and the inner hole side wall of the tailstock quick-change joint 13; the electric shock is prevented, the fixation is firm, and the structure is reasonable;
the connector 12 or the tailstock quick-change connector 13 is provided with a vent 19 which is communicated with a second refrigerant passage 22, and the vent is used for discharging return air into the atmosphere, so that the refrigerant gas can flow reversely as structural deformation.
Preferably, the cold head 2 is silver, copper, stainless steel or titanium, the central tube 3 is a stainless steel hose, and the inner sleeve 4 is a polytetrafluoroethylene tube, a nylon tube or a rubber tube; the inner support sleeve 11 is an insulating sleeve.
Preferably, the left inner spigot of the connector 12 is in threaded connection with the left outer spigot of the outer compression sleeve 10, and the right inner spigot of the outer compression sleeve 10 is in threaded connection with the right outer spigot of the inner support sleeve 11.
The right end of the central tube 3 is electrically connected with a power supply, and can input high-frequency and high-voltage current to the radio-frequency electrode 1.
The tissue excision operation method of the embodiment specifically comprises the following steps by means of the device:
Step a: the scalpel is positioned, the central tube 3 and the inner sleeve 4 are bent along the tissue and enter the human body, so that the radio frequency electrode 1 and the cold head 2 are aligned to focus tissue;
step b: after the step a is executed, a refrigerant is introduced through the central tube 3, the cold head 2 is rapidly cooled and refrigerated after passing through the orifice 15, and the focal tissue is subjected to cryoablation through the cold head 2;
step c: after the step a is executed, the central tube 3 is electrified, and the radio frequency electrode 1 discharges, resects and ablates focus tissues;
step d: after the step a is executed, the central tube 3 is electrified, and the radio frequency electrode 1 discharges, resects and ablates focus tissues; at the same time of the radio frequency electrode 1 discharging ablation of focal tissue and/or after the radio frequency electrode 1 discharging ablation of focal tissue, refrigerant is introduced into the central tube 3, the cooling head 2 is cooled rapidly after passing through the orifice 15, and the focal tissue is frozen and ablated and/or frozen by the cooling head 2 to take the cut tissue out of the body.
Example 2: as shown in fig. 2, in this embodiment, compared with embodiment 1, inert gas protection is added, and the inert gas protection comprises an inert gas high-frequency electric knife device and a freezing device, wherein the inert gas high-frequency electric knife device comprises a radio-frequency electrode 1 for thermally resecting tissue, a conductor for conveying current to the radio-frequency electrode 1, inert gas surrounding the radio-frequency electrode 1 and the tissue to be thermally resected during thermal resection, and a pipeline for conveying the inert gas; the inert gas is preferably inert gas, and the refrigerant is preferably high-pressure CO2 gas.
The refrigerating device comprises a cold head 2 for cold cutting off tissues and a pipeline for cooling and refrigerating the cold head 2;
the inert gas high-frequency electrotome device and the refrigerating device are integrated into a whole.
Further, the cooling device comprises a central tube 3, an inner sleeve 4, an orifice 15, a first refrigerant channel 21 and a second refrigerant channel 22, wherein the left end of the central tube 3 is connected with the right side of the cold head 2, the inner sleeve 4 is sleeved on the central tube 3, the orifice 15 is arranged on the left end or the outer side wall of the central tube 3, the first refrigerant channel 21 is arranged in an inner hole of the inner sleeve 4, and the second refrigerant channel 22 is arranged between the central tube 3 and the inner sleeve 4; the cold head 2 is connected with the left end of the inner sleeve 4 in a sealing way;
the first refrigerant passage 21 communicates with the second refrigerant passage 22 through the orifice 15.
Further, an outer sleeve 5 is sleeved on the inner sleeve 4, and an inert gas channel 16 is arranged between the inner sleeve 4 and the outer sleeve 5; along the axial projection of the outer sleeve 5, the outer sleeve 5 is arranged surrounding the radio frequency electrode 1.
Further, be provided with guide holder 6 at the right-hand member of outer tube 5, be equipped with fixing base 8 on outer tube 5, be provided with preceding direction male end 7 at fixing base 8 left end, guide holder 6 slides along preceding direction male end 7 and sets up, is provided with sliding seal 17 between guide holder 6 and preceding direction male end 7.
Further, a ventilation joint 9 for communicating with an inert gas source is arranged on the guide seat 6 or the fixed seat 8, and the ventilation joint 9 is communicated with the inert gas channel 16.
Further, a connector 12 is arranged in an inner spigot at the right end of the fixed seat 8, a tailstock quick-change joint 13 is arranged at the right end of the connector 12, an outer compression sleeve 10 and an inner support sleeve 11 for compressing the right end of the inner sleeve 4 are arranged in the connector 12, and an insulating sealing sleeve 14 is arranged between the outer side wall of the central tube 3 and the inner hole side wall of the tailstock quick-change joint 13;
the connector 12 or the tailstock quick-change connector 13 is provided with a vent 19 communicating with a second refrigerant passage 22.
Further, the cold head 2 is silver, copper, stainless steel or titanium, the central tube 3 is a metal hose, and the inner sleeve 4 and the outer sleeve 5 are polytetrafluoroethylene tubes, nylon tubes or rubber tubes; the inner support sleeve 11 is an insulating sleeve.
The tissue excision operation method of the embodiment specifically comprises the following steps by means of the device:
step a: the scalpel is positioned to push the guide seat 6, the central tube 3, the inner sleeve 4 and the outer sleeve 5 to bend along the tissue and enter the human body, so that the radio frequency electrode 1 and the cold head 2 are aligned to focus tissue;
step b: after the step a is executed, pushing the guide seat 6 to enable the cold head 2 to be exposed out of the left end of the outer sleeve 5, introducing a refrigerant into the central tube 3, rapidly cooling and refrigerating the cold head 2 after passing through the orifice 15, and performing cryoablation and ablation on focus tissues through the cold head 2;
Step c: after the step a is executed, firstly, pushing the guide seat 6 to enable the cold head 2 to be hidden at the left end of the outer sleeve 5, then spraying inert gas to the radio frequency electrode 1 through the ventilation joint 9 and the inert gas channel 16, and then powering on the central tube 3, and discharging, cutting and ablating focus tissues by the radio frequency electrode 1;
step d: after the step a is executed, firstly, pushing the guide seat 6 to enable the cold head 2 to be hidden at the left end of the outer sleeve 5, then spraying inert gas to the radio frequency electrode 1 through the ventilation joint 9 and the inert gas channel 16, and then powering on the central tube 3, and discharging, cutting and ablating focus tissues by the radio frequency electrode 1; at the same time of the radio frequency electrode 1 discharging ablation of focal tissue and/or after the radio frequency electrode 1 discharging ablation of focal tissue, refrigerant is introduced into the central tube 3, the cooling head 2 is cooled rapidly after passing through the orifice 15, and the focal tissue is frozen and ablated and/or frozen by the cooling head 2 to take the cut tissue out of the body.
As shown in fig. 1 to 9, the cold and hot knife workstation of the embodiment comprises a high-frequency electric knife system, a cold knife system and a comprehensive control system;
the comprehensive control system controls the high-frequency electric knife system and the cold knife system to simultaneously or sequentially convey high-frequency current and refrigerant to the knife head of the surgical knife device.
The integrated control system comprises a cold and hot control unit processor 108 and a cold and hot workstation output interface 109; the cold and hot work station output interface 109 delivers the high frequency circuit and the coolant to the tip end of the scalpel device.
The high-frequency electric knife system comprises a high-frequency electric knife generating module and a high-frequency electric knife therapeutic machine control module 97;
the high-frequency electric knife generating module comprises a high-frequency high-voltage generator 94 and a high-frequency electric knife interface 98;
the high frequency electrotome therapy apparatus control module 97 includes a control switch module 95 for controlling the high frequency high voltage generator 94;
the cold and hot control unit processor 108 controls the control switch module 95;
the high frequency current generated by the high frequency high voltage generator 94 enters the cold and hot work station output interface 109 through the high frequency electrotome interface 98.
The cold knife system comprises a refrigerant gas source 99, a cryosurgery therapeutic machine control module 102 and a cryosurgery knife interface 104;
the cryosurgery therapeutic machine control module 102 comprises a refrigerant control valve 103;
the cold and hot control unit processor 108 controls the on-off and/or opening degree of the refrigerant control valve 103;
the refrigerant control valve 103 controls the refrigerant in the refrigerant gas source 99 to enter the cold and hot workstation output interface 109 through the cryosurgery knife interface 104.
The cold knife system further comprises a refrigerant pressure adjusting unit 100 for adjusting the output air pressure of the refrigerant air source 99 and/or a refrigerant pressure detecting unit 101 for detecting the output air pressure of the refrigerant air source 99;
The refrigerant pressure adjusting unit 100 and/or the refrigerant pressure detecting unit 101 are arranged on a gas path between the refrigerant gas source 99 and the refrigerant control valve 103;
the cryosurgical treatment machine control module 102 further includes a cryosurgical temperature detection unit 105 for detecting the temperature of the coolant at the cryosurgical knife interface 104;
the freezing temperature detecting unit 105 is electrically connected with the cold and hot control unit processor 108 in one way or in both directions.
The integrated control system further includes a cold and hot work station display unit 106 and/or a cold and hot work station setting unit 107;
an output end of the cold and hot control unit processor 108 is electrically connected with an input end of the cold and hot work station display unit 106 and/or an input end of the cold and hot work station setting unit 107 is electrically connected with an output end of the cold and hot work station display unit 106.
The high-frequency electrotome system also comprises an inert gas module;
the inert gas module includes an inert gas source 91;
inert gas in inert gas source 91 enters cold and hot workstation output interface 109 through inert gas control valve 96.
The inert gas module further comprises an inert gas pressure adjusting unit 92 for adjusting the output pressure of the inert gas source 91 and/or an inert gas pressure detecting unit 93 for detecting the output pressure of the inert gas source 91;
An inert gas pressure adjustment unit 92 and/or an inert gas pressure detection unit 93 are provided between the inert gas source 91 and the inert gas control valve 96.
The control method of the cold and hot knife workstation of the embodiment specifically comprises the following steps by means of the workstation: the inert gas control valve 96, the refrigerant control valve 103 and the control switch module 95 are controlled by the cold and hot control unit processor 108, and the refrigerant gas source 99 inputs the refrigerant to the cold and hot work station output interface 109 at the same time or after the high-frequency electric knife interface 98 inputs the high-frequency current to the cold and hot work station output interface 109 and the inert gas source 91 inputs the inert gas to the cold and hot work station output interface 109.
The control method of the cold and hot knife workstation of the embodiment specifically comprises the following steps by means of the workstation: the refrigerant control valve 103 and the control switch module 95 are controlled by the cold/hot control unit processor 108, and the refrigerant source 99 inputs the refrigerant to the cold/hot work station output interface 109 at the same time or after the high-frequency electric knife interface 98 inputs the high-frequency current to the cold/hot work station output interface 109.
Specifically, the method comprises the following steps: comprises the following steps: the pre-operation check workstation is executed, firstly, the pressure is detected by the refrigerant pressure detection unit 101, the pressure is detected by the inert gas pressure detection unit 93, and a preset working instruction is input to the cold and hot control unit processor 108 by the cold and hot workstation setting unit 107; then, the output air pressure is adjusted by the refrigerant pressure adjusting unit 100, the output air pressure is adjusted by the inert gas pressure adjusting unit 92, and the upper limit or the lower limit value of the temperature of the freezing temperature detecting unit 105 is set by the cold/hot control unit processor 108 or manually;
Step (2): the pre-debugging scalpel, firstly, the inert gas control valve 96, the refrigerant control valve 103 and the control switch module 95 are controlled by the cold and hot control unit processor 108;
when the refrigerant temperature, the refrigerant air pressure and/or the inert gas pressure according to the pre-test result do not meet the preset requirement, the output air pressure is regulated by the refrigerant pressure regulating unit 100, and the output air pressure is regulated by the inert gas pressure regulating unit 92 until the output air pressure reaches the preset requirement; and c, executing the step a when the refrigerant temperature, the refrigerant pressure and/or the inert gas pressure of the pre-test result reach the preset requirements.
As a preferred method, the focus part is cooled firstly in the operation and then cut by an electric knife, thereby preventing the damage of the current heat to the surrounding tissues, effectively reducing the bleeding amount in the operation, reducing the postoperative complications and facilitating the rapid recovery of the wound of the patient.
Further, the cold and hot knife joint device comprises a transition joint 31 connected with a cold and hot work station output interface 109 connected with a comprehensive control system of the cold and hot knife work station, an output joint 30 connected with a tail seat quick-change joint 13 of the surgical knife device, a right connecting joint 51 with the right end installed at the left end of the transition joint 31, an inert gas conveying pipe 32 with two ends respectively communicated with the surgical knife device and a high-frequency electric knife system of the cold and hot knife work station, and a refrigerant high-frequency conveying pipe 33 arranged between the output joint 30 and the right connecting joint 51.
The refrigerant high-frequency delivery pipe 33 includes an inner pipe 34 for inputting a refrigerant and a high-frequency current, an outer pipe 35 fitted around the outer side of the inner pipe 34, and a return pipe passage 36 provided in a gap between the inner pipe 34 and the outer pipe 35.
The output joint 30 includes an output seat 38 connected to the tailstock quick-change joint 13 of the scalpel apparatus, a left second female socket 39 provided in the output seat 38 and sealed and mounted on the tailstock quick-change joint 13, a first middle through hole 40 provided on the right side of the left second female socket 39 and sealed and mounted on the tailstock quick-change joint 13, a first refrigerant circuit passage 41 provided in the output seat 38, a first right socket 42 provided on the right side of the first middle through hole 40, a first right connection hole 43 provided on the right side of the first right socket 42, a first insulating bush 44 provided in the first right socket 42, a first conductive socket 45 provided in the right inner socket of the first insulating bush 44, a first inner through hole screw 46 provided in the first conductive socket 45, a first right connection sleeve 50 provided in the first right connection hole 43, a first connection bush 47 provided in the first right connection sleeve 50, a first return air passage 48 provided in the first connection bush 47, and a first high-frequency refrigerant pipe provided in the first connection bush 47 and connected to the left shuttle pipe 33;
The left end of the first refrigerant circuit channel 41 is communicated with the right side of the left second inner spigot 39 or the left side of the first middle through hole 40, and the left end of the first refrigerant circuit channel 41 is correspondingly communicated with the vent hole 19 of the refrigerant on the tailstock quick-change connector 13; the right end of the first refrigerant circuit channel 41 is communicated with a first air return channel 48, the left part of the inner tube 34 is inserted into a first shuttle sleeve 49, and the left end of the outer tube 35 is fixed between the first connecting bushing 47 and the first shuttle sleeve 49 in a sealing way; the circuit line passage 36 communicates with the first return air passage 48 through a gap between the inner tube 34 and the first bobbin case 49;
the left end of the first connecting bush 47 is provided with a position table attached to the left end face of the first right connecting sleeve 50.
The right connecting joint 51 includes a right lock nut 52 provided in the left end inner spigot of the right connecting joint 51, a second bobbin case 53 provided in the right lock nut 52, a second middle through hole 56 provided on the right side of the second bobbin case 53, a second outer shoulder 57 provided on the outer side wall corresponding to the middle portion of the second middle through hole 56, a right second outer spigot 59 provided on the outer side wall corresponding to the right portion of the second middle through hole 56, and a second radial through hole 58 provided on the second outer shoulder 57 or the right second outer spigot 59;
the inner end of the second radial through hole 58 is communicated with the second middle through hole 56, the outer end of the second radial through hole 58 is communicated with the atmosphere, and sealing rings are respectively arranged on the left side and the right side of the outer end of the second radial through hole 58;
A second left shuttle mouth 54 is arranged on the left side of the second shuttle sleeve 53, a second right threaded shaft 55 connected with the right locking nut 52 is arranged at the right end of the second left shuttle mouth 54, the right end of the outer tube 35 is arranged between the second left shuttle mouth 54 and the right locking nut 52 in a sealing mode, the inner tube 34 penetrates through the inner hole of the second shuttle sleeve 53 and the second middle through hole 56, and the right end of the loop pipeline channel 36 is communicated with the second radial through hole 58 after sequentially communicating a gap channel between the inner hole of the second shuttle sleeve 53 and the inner tube 34 and a gap channel between the inner hole of the second middle through hole 56 and the inner tube 34.
The transition joint 31 includes a transition seat 60, a third left radial hole 61 provided on the transition seat 60 and communicating with the second radial through hole 58, a third left middle inner spigot 71 provided on the left end of the transition seat 60 and inserted with the second outer shoulder 57, a third left middle inner stopper 72 provided on the right end of the third left middle inner spigot 71 and inserted with the right second outer spigot 59, an inner through hole provided on the right end of the third left middle inner stopper 72, a third axial insulating sleeve 64 mounted on the inner through hole, a third right radial hole 63 provided on the transition seat 60 and having an inner end communicating with the third axial insulating sleeve 64, a third insulating radial sleeve 62 inserted in the third right radial hole 63, a third conductive seat 65 provided in the third axial insulating sleeve 64, and a third inert gas passage 70 provided on the transition seat 60; the third conductive seat 65 is provided with a through hole communicated with the inner end of the third right radial hole 63;
The inner side wall of the third left middle inner stop hole 72 and the outer side wall of the right second outer spigot 59 and/or the inner side wall of the second outer shaft shoulder 57 and the outer side wall of the third left middle inner spigot 71 are arranged in a sealing manner;
the inner end of the third left radial hole 61 is provided in the third left middle inner spigot 71 or in the third left middle inner stopper hole 72; the outer end of the third right radial hole 63 is communicated with the outlet of a cryosurgical knife interface 104 of a cold knife system of the cold knife workstation;
the third conductive mount 65 is electrically connected to a high frequency electrotome interface 98 of the high frequency electrotome system of the cold and hot tool workstation.
And also includes a position detection device disposed on the transition seat 60.
The position detection device comprises a position detection rod 69 arranged in the transition seat 60, the left end of the position detection rod corresponds to the right end of the right second outer spigot 59, a proximity position switch 67 arranged in the transition seat 60 and positioned on the right side of the position detection rod 69, and a reset spring 68 arranged between the proximity position switch 67 and the position detection rod 69; also comprises an alarm circuit, and the proximity switch 67 controls the on-off of the alarm circuit.
The left end of the inert gas delivery pipe 32 is communicated with the inert gas ventilation joint 9 of the scalpel device, and two ends of the third inert gas channel 70 are respectively communicated with the right end of the inert gas delivery pipe 32 and the air outlet of the inert gas control valve 96 of the high-frequency electrotome system of the cold-hot scalpel workstation.
A left positioning end 37 is arranged at the left end of the inner tube 34, and the left positioning end 37 is positioned between the bottom surface of the inner hole of the first conductive seat 45 and the left end surface of the first inner through hole screw 46.
The current conveying method of the inert gas cold and hot knife of the embodiment specifically comprises the following steps by means of the device:
step I: the high-frequency current generated by the high-frequency electric knife system enters the right end of the inner hole of the third conductive seat 65 through the high-frequency electric knife interface 98, meanwhile, the inert gas generated by the high-frequency electric knife system enters through the air outlet of the inert gas control valve 96, and enters the scalpel device after sequentially passing through the third inert gas channel 70 and the inert gas conveying pipe 32;
step II: simultaneously or after step i, the cold knife system generates a cooling medium which enters the third right radial hole 63 from the cold knife interface 104 and reaches the right end of the inner hole of the third axial insulation sleeve 64, and the cooling medium conveys the current in step i into the knife device through the feeding inner tube 34.
The workstation is connected with the scalpel through the transition joint 31, the output joint 30, the right connecting joint 51, the inert gas conveying pipe 32 and the refrigerant high-frequency conveying pipe 33, the flexibility of the workstation is increased through the inert gas conveying pipe 32 and the refrigerant high-frequency conveying pipe 33, and the rigidity of the workstation is ensured through the transition joint 31, the output joint 30 and the right connecting joint 51; the application range is enlarged, the use is flexible, the connection is firm, and the device is firm and durable. The refrigerant pipeline is reasonable in design, good in air tightness, safe and reliable, space-saving, convenient to detach, good in sealing effect, and capable of reducing loss in the conveying process, screw threads are compressed, space is greatly saved in a gap channel, the volume is reduced, the shuttle-type structure is good in air tightness, compression is firm, and through insulation arrangement, safety and reliability are achieved, so that current can be guaranteed to reach an operation end smoothly, and safety and reliability are achieved. The position detection device can ensure reliable and firm installation position. Through position detection device, judge the break-make through alarm circuit, convenient intelligent is convenient for realize the automation.
The current conveying method of the inert gas cold and hot knife of the embodiment specifically comprises the following steps by means of the device:
step I: the high-frequency current generated by the high-frequency electric knife system enters the right end of the inner hole of the third conductive seat 65 through the high-frequency electric knife interface 98, meanwhile, the inert gas generated by the high-frequency electric knife system enters through the air outlet of the inert gas control valve 96, and enters the scalpel device after sequentially passing through the third inert gas channel 70 and the inert gas conveying pipe 32;
step II: simultaneously or after step i, the cold knife system generates a cooling medium which enters the third right radial hole 63 from the cold knife interface 104 and reaches the right end of the inner hole of the third axial insulation sleeve 64, and the cooling medium conveys the current in step i into the knife device through the feeding inner tube 34.
The joint has reasonable structure, realizes the simultaneous output of argon, refrigerant and high-frequency current, integrates and has good tightness.
Compared with a high-frequency electric knife, the inert gas high-frequency electric knife has the following advantages: fast coagulation, reliable hemostatic effect, less blood loss in operation and shortened operation time; not only has good effect on the parts which are difficult to stanch, but also has good effect on large-area blood permeation. The small blood vessel is assisted with compression hemostasis, and can also rapidly stop bleeding. The blood loss in the operation is generally reduced by about 50%, so that the blood transfusion of patients is less or not, and the operation time can be shortened by about half; the coagulation layer produced by the coagulation spray pen with thin, uniform and firm scab, light tissue injury and easy wound healing is particularly thin and flat, and the thickness is 0.2-0.3mm. The inert gas flows to blow the wound surface to blow off blood and sewage, and the argon ion arc directly and uniformly acts on the wound surface to make the eschar thin, uniform and firm. The surface of the solidification layer produced by the universal electrotome is also provided with a layer of brown uneven carbonization and plays a role in cooling, so that the wound tissue is slightly damaged, and clinical practice proves that the wound is easy to heal. The smoke and the peculiar smell are less because the thermal solidification of the protein is carried out under the protection of inert gas, namely inert gas, oxygen is isolated, and the excessive inert gas blows and plays a role of cooling, so that the smoke and the peculiar smell are greatly reduced in the operation, and the medical instrument is beneficial to the health of medical staff.
Meanwhile, due to the existence of inert gas, the effect of cooling the pathological tissues is further improved by matching with cryoablation.
The device can be used together with an endoscope, reaches the pathological tissue under the guidance of the endoscope, and performs radio frequency (or freezing) ablation on the pathological tissue.
The invention integrates the two functions together and generates a third function, and the freezing function can be started in the radio frequency process to reduce the temperature of the radio frequency electrode, so that the radio frequency electrode can continuously work, and the difficult problem that radio frequency ablation cannot continuously work is solved. The radio frequency ablation and the cryoablation have respective advantages, and doctors can change the treatment means at any time according to the current situation of pathological tissues in the operation process, so that the treatment effect is optimal.
The radio frequency ablation has the characteristics of high power, can be used for cutting larger tumors and polyps, has the defect of being slightly careless and easy to damage non-pathological tissues of human bodies, is not suitable for being used near thin-wall tissues and at the positions with metal brackets, and is easy to heat and damage an endoscope in the use process. The cryoablation ablation power is low, no heat is generated in the working process, the metal stent is used at the position of the metal stent and near the thin wall tissue, the special advantages are achieved, and in addition, the foreign body extraction function is achieved through freezing. The cold and hot ablation has respective advantages, the two advantages can be complemented, the radio frequency is used for first ablation of the tumor, and the freezing is used for ablation of the residual tumor; the resecting work is finished, and the cut tissue can be taken out of the body by utilizing the freezing function.
The invention has reasonable structure, advanced design, safe and reliable use, low cost, high integration, strong flexibility and long service life. The invention realizes the perfect combination of the cold knife and the hot knife through the workstation, and the combination of the cold knife and the hot knife generates unexpected effects, is not simply combined, has the operation effect when the hot knife is used for cutting, has the low-temperature protection effect of the cold knife, and cools the hot knife by freezing and taking out tissues, thereby greatly improving the operation effect.
The patent integrates two treatment means together, a doctor can change the treatment method in time according to the state of illness and the current situation in operation, and the patient can obtain the optimal treatment.
The invention develops a cold-hot surgical knife integrating a cryoprobe and an electrotome electrode, firstly cools the focus part in the operation, then cuts the focus part by using the electrotome, prevents the damage of current heat to surrounding tissues, can effectively reduce the bleeding amount in the operation, reduces postoperative complications and is beneficial to the rapid recovery of wounds of patients. As a preferable scheme, the product has the functions of independent electrotome and cryotherapy. The product can be used alone with an electrotome or a cryosurgery knife. The electric knife control module and the cryotherapeutic machine control module which are independent are arranged, and the two modules are not interfered with each other and can independently operate. The product has the function of simultaneously using electrotome and cryotherapy. The electrotome and the cryotherapy are simultaneously carried out at different parts of the same patient. The product has an output port integrating freezing and electric knife, and can be used with the cold knife and the hot knife, and one knife can be used as the freezing knife or the electric knife and can be switched at any time in use. The product has the function of outputting the electrode of the internal precooling electrotome. The temperature of the electrotome electrode is reduced by the refrigerating system in the operation process, so that the electrotome can continuously work. The product operation panel is provided with one or more cold and hot knife interfaces special for the product.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some of the technical features thereof can be replaced by equivalents; it is obvious to a person skilled in the art to combine several embodiments of the invention. Such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. A cold and hot knife workstation, characterized in that: comprises a high-frequency electric knife system, a cold knife system and a comprehensive control system;
the comprehensive control system controls the high-frequency electric knife system and the cold knife system to simultaneously or sequentially convey high-frequency current and refrigerant to the knife head of the surgical knife device;
the integrated control system comprises a cold and hot control unit processor (108) and a cold and hot workstation output interface (109); a cold and hot work station output interface (109) is used for conveying high-frequency current and cooling media to a knife head end of the surgical knife device;
the high-frequency electric knife system comprises a high-frequency electric knife generating module and a high-frequency electric knife therapeutic machine control module (97);
The high-frequency electric knife generating module comprises a high-frequency high-voltage generator (94) and a high-frequency electric knife interface (98);
the control module (97) of the high-frequency electrotome therapeutic machine comprises a control switch module (95) for controlling the high-frequency high-voltage generator (94);
a cold and hot control unit processor (108) controls the control switch module (95);
the high-frequency current generated by the high-frequency high-voltage generator (94) enters the cold and hot work station output interface (109) through the high-frequency electrotome interface (98);
the cold knife system comprises a refrigerant air source (99), a cryosurgery therapeutic machine control module (102) and a cryosurgery knife interface (104);
the control module (102) of the cryosurgery therapeutic machine comprises a refrigerant control valve (103);
the cold and hot control unit processor (108) controls the on-off and/or opening degree of the refrigerant control valve (103);
the refrigerant control valve (103) controls the refrigerant in the refrigerant gas source (99) to enter the cold and hot work station output interface (109) through the cryosurgery knife interface (104);
an inert gas control valve (96), a refrigerant control valve (103) and a control switch module (95) are controlled by a cold and hot control unit processor (108), and a refrigerant gas source (99) inputs a refrigerant to a cold and hot work station output interface (109) at the same time or after a high-frequency electric knife interface (98) inputs a high-frequency current to the cold and hot work station output interface (109) and an inert gas source (91) inputs an inert gas to the cold and hot work station output interface (109);
The cold and hot control unit processor (108) is used for controlling the refrigerant control valve (103) and the control switch module (95), and the refrigerant source (99) is used for inputting a refrigerant to the cold and hot work station output interface (109) at the same time or after the high-frequency electric knife interface (98) is used for inputting a high-frequency current to the cold and hot work station output interface (109);
the high-frequency electric knife system is matched with a high-frequency electric knife device;
the cold knife system is matched with a refrigerating device;
the high-frequency electrotome device comprises a radio-frequency electrode for thermally resecting tissue and a conductor for delivering current to the radio-frequency electrode;
the refrigerating device comprises a cold head for cold cutting off tissues and a pipeline for cooling and refrigerating the cold head;
the high-frequency electrotome device and the refrigerating device are integrated into a whole;
the radio frequency electrode is externally arranged at the left end of the cold head;
the refrigerating device also comprises a central tube, an inner sleeve, an orifice, a first refrigerant channel and a second refrigerant channel, wherein the left end of the central tube is connected with the right side of the cold head, the inner sleeve is sleeved on the central tube, the orifice is arranged on the left end or the outer side wall of the central tube, the first refrigerant channel is arranged in an inner hole of the inner sleeve, and the second refrigerant channel is arranged between the central tube and the inner sleeve; the cold head is connected with the left end of the inner sleeve in a sealing way;
the refrigerating device further comprises a connector arranged at the right end of the inner sleeve, a tailstock quick-change connector is arranged at the right end of the connector, an outer compression sleeve and an inner support sleeve for compressing the right end of the inner sleeve are arranged in the connector, and an insulating sealing sleeve is arranged between the outer side wall of the central tube and the inner hole side wall of the tailstock quick-change connector;
The first refrigerant channel is communicated with the second refrigerant channel through the throttle hole;
the central tube, the inner sleeve and the outer sleeve are hoses;
the connector or the tailstock quick-change connector is provided with a vent hole communicated with the second refrigerant channel, so that return air is discharged into the atmosphere;
the left inner spigot of the connector is in threaded connection with the left outer spigot of the outer pressing sleeve, and the right inner spigot of the outer pressing sleeve is in threaded connection with the right outer spigot of the inner supporting sleeve;
the right end of the central tube is electrically connected with a power supply, and high-frequency high-voltage current is input to the radio-frequency electrode;
the right end of the outer sleeve is provided with a guide seat, the outer sleeve is sleeved with a fixing seat, the left end of the fixing seat is provided with a front guide outer spigot, the guide seat is arranged along the front guide outer spigot in a sliding way, and a sliding sealing ring is arranged between the guide seat and the front guide outer spigot;
a ventilation joint used for communicating an inert gas source is arranged on the guide seat or the fixed seat, and the ventilation joint is communicated with the inert gas channel;
a connector is arranged in an inner spigot at the right end of the fixed seat, a tailstock quick-change connector is arranged at the right end of the connector, an outer compression sleeve and an inner support sleeve for compressing the right end of the inner sleeve are arranged in the connector, and an insulating sealing sleeve is arranged between the outer side wall of the central tube and the inner hole side wall of the tailstock quick-change connector;
The connector or the tailstock quick-change connector is provided with a vent hole communicated with the second refrigerant channel;
pushing the guide seat to enable the cold head to be hidden at the left end of the outer sleeve, then spraying inert gas to the radio-frequency electrode through the ventilation joint and the inert gas channel, and then electrifying the central tube, and discharging the radio-frequency electrode; introducing a refrigerant through the central tube while and/or after the radio frequency electrode discharges, and cooling and refrigerating the cold head after passing through the orifice;
when the pre-operation checking workstation is executed, firstly, the pressure is detected by a refrigerant pressure detection unit, the pressure is detected by an inert gas pressure detection unit, and a preset working instruction is input to a cold and hot control unit processor by a cold and hot workstation setting unit; then, the output air pressure is regulated by a refrigerant pressure regulating unit, the output air pressure is regulated by an inert gas pressure regulating unit, and the upper limit value or the lower limit value of the temperature of the freezing temperature detecting unit is set by a cold and hot control unit processor or manually;
when the surgical knife is pre-tested, firstly, the inert gas control valve, the refrigerant control valve and the control switch module are controlled by the cold and hot control unit processor;
when the temperature of the refrigerant, the pressure of the refrigerant and/or the pressure of the inert gas according to the pre-test result do not meet the preset requirement, the output pressure is regulated by the refrigerant pressure regulating unit, and the output pressure is regulated by the inert gas pressure regulating unit until the output pressure reaches the preset requirement;
The cold and hot knife device comprises a cold and hot knife device, and particularly comprises a transition joint connected with an output interface of the cold and hot knife device, an output joint connected with a tailstock quick-change joint of the surgical knife device, a right connecting joint with the right end arranged at the left end of the transition joint, an inert gas conveying pipe with two ends respectively communicated with the surgical knife device and a high-frequency electric knife system of the cold and hot knife device, and a refrigerant high-frequency conveying pipe arranged between the output joint and the right connecting joint;
the refrigerant high-frequency conveying pipe comprises an inner pipe for inputting a refrigerant and a high-frequency current, an outer pipe sleeved on the outer side of the inner pipe and a loop pipeline channel arranged in a gap between the inner pipe and the outer pipe;
the output connector comprises an output seat connected with a tailstock quick-change connector of the scalpel device, a left second inner spigot arranged in the output seat and sealed and sleeved on the tailstock quick-change connector, a first middle through hole arranged on the right side of the left second inner spigot and sealed and sleeved on the tailstock quick-change connector, a first refrigerant loop channel arranged on the output seat, a first right spigot arranged on the right side of the first middle through hole, a first right connecting hole arranged on the right side of the first right spigot, a first insulating bush arranged in the first right spigot, a first conductive seat arranged in the right inner spigot of the first insulating bush, a first inner through hole screw arranged in the first conductive seat, a first right connecting sleeve arranged in the first right connecting hole, a first connecting bush arranged in the first right connecting sleeve, a first air return channel arranged on the first connecting bush and a first shuttle sleeve arranged in the first connecting bush and connected with the left end of the refrigerant high-frequency conveying pipe;
The left end of the first refrigerant loop channel is communicated with the right side of the left second inner spigot or the left side of the first middle through hole, and the left end of the first refrigerant loop channel is correspondingly communicated with a vent hole of a refrigerant on the tailstock quick-change connector; the right end of the first refrigerant loop channel is communicated with the first air return channel, the left part of the inner tube is inserted into the first shuttle sleeve, and the left end of the outer tube is fixed between the first connecting bushing and the first shuttle sleeve in a sealing way; the loop pipeline channel is communicated with the first air return channel through a gap between the inner pipe and the first shuttle sleeve;
the left end of the first connecting bushing is provided with a position table attached to the left end face of the first right connecting sleeve;
the right connecting joint comprises a right locking nut arranged in an inner spigot at the left end of the right connecting joint, a second shuttle sleeve arranged in the right locking nut, a second middle through hole arranged on the right side of the second shuttle sleeve, a second outer shaft shoulder arranged on the corresponding outer side wall at the middle part of the second middle through hole, a right second outer spigot arranged on the corresponding outer side wall at the right part of the second middle through hole and a second radial through hole arranged on the second outer shaft shoulder or the right second outer spigot;
the inner end of the second radial through hole is communicated with the second middle through hole, the outer end of the second radial through hole is communicated with the atmosphere, and sealing rings are respectively arranged at the left side and the right side of the outer end of the second radial through hole;
The right end of the loop pipeline channel is sequentially communicated with a gap channel between the inner hole of the second shuttle sleeve and the inner tube and a gap channel between the inner hole of the second middle through hole and the inner tube and then is communicated with a second radial through hole;
the transition joint comprises a transition seat, a third left radial hole, a third left middle inner spigot, a third left middle inner stop hole, an inner through hole, a third right axial insulating sleeve, a third right radial hole, a third insulating radial sleeve, a third conductive seat and a third inert gas channel, wherein the third left radial hole is arranged on the transition seat and is communicated with the second radial through hole; a through hole communicated with the inner end of the third right radial hole is formed in the third conductive seat;
The inner side wall of the third left middle inner stop hole and the outer side wall of the right second outer spigot and/or the inner side wall of the second outer shaft shoulder and the outer side wall of the third left middle inner spigot are arranged in a sealing way;
the inner end of the third left radial hole is arranged in the third left middle inner spigot or the third left middle inner stop hole; the outer end of the third right radial hole is communicated with a cold scalpel interface outlet of a cold scalpel system of the cold scalpel workstation;
the third conductive seat is electrically connected with a high-frequency electric knife interface of a high-frequency electric knife system of the cold-hot knife workstation;
the device also comprises a position detection device arranged on the transition seat;
the position detection device comprises a position detection rod, a proximity position switch and a reset spring, wherein the position detection rod is arranged in the transition seat, the left end of the position detection rod corresponds to the right end of the right second outer spigot, the proximity position switch is arranged in the transition seat and positioned on the right side of the position detection rod, and the reset spring is arranged between the proximity position switch and the position detection rod; the proximity switch is used for controlling the on-off of the alarm circuit;
the left end of the inert gas conveying pipe is communicated with an inert gas ventilation joint of the scalpel device, and two ends of the third inert gas channel are respectively communicated with the right end of the inert gas conveying pipe and an inert gas control valve air outlet of a high-frequency electrotome system of the cold and hot electrotome workstation;
The left end of the inner tube is provided with a left positioning end which is positioned between the bottom surface of the inner hole of the first conductive seat and the left end surface of the first inner through hole screw;
when the cold and hot knife of inert gas is used for conveying current,
step I: the high-frequency current generated by the high-frequency electric knife system enters the right end of the inner hole of the third conductive seat through the high-frequency electric knife interface, meanwhile, inert gas generated by the high-frequency electric knife system enters through the gas outlet of the inert gas control valve, and enters the scalpel device after sequentially passing through the third inert gas channel and the inert gas conveying pipe;
step II: and (3) simultaneously or after the step I, the cold knife system generates a refrigerant which enters the third right radial hole from the cold knife interface and then reaches the right end of the inner hole of the third axial insulating sleeve, and the refrigerant conveys the current in the step I into the surgical knife device through the feeding inner pipe.
2. The cold-hot knife workstation of claim 1, wherein the cold-knife system further comprises a refrigerant pressure adjusting unit (100) for adjusting the output air pressure of the refrigerant air source (99) and/or a refrigerant pressure detecting unit (101) for detecting the output air pressure of the refrigerant air source (99);
the refrigerant pressure adjusting unit (100) and/or the refrigerant pressure detecting unit (101) are/is arranged on a gas path between the refrigerant gas source (99) and the refrigerant control valve (103);
The cryosurgery therapeutic machine control module (102) also comprises a freezing temperature detection unit (105) for detecting the temperature of the refrigerant of the cryosurgery knife interface (104);
the freezing temperature detection unit (105) is electrically connected with the cold and hot control unit processor (108) in one way or two ways.
3. The cold and hot knife workstation according to claim 2, wherein the integrated control system further comprises a cold and hot workstation display unit (106) and/or a cold and hot workstation setting unit (107);
the output end of the cold and hot control unit processor (108) is electrically connected with the input end of the cold and hot work station display unit (106) and/or the input end of the cold and hot work station setting unit (107) is electrically connected with the output end of the cold and hot work station display unit (106).
4. The cold and hot knife workstation of claim 3 wherein said high frequency electric knife system further comprises an inert gas module;
the inert gas module comprises an inert gas source (91);
inert gas in the inert gas source (91) enters the cold and hot work station output interface (109) through the inert gas control valve (96).
5. The cold and hot knife workstation according to claim 4, wherein the inert gas module further comprises an inert gas pressure adjusting unit (92) for adjusting the output pressure of the inert gas source (91) and/or an inert gas pressure detecting unit (93) for detecting the output pressure of the inert gas source (91);
The inert gas pressure adjusting unit (92) and/or the inert gas pressure detecting unit (93) are arranged between the inert gas source (91) and the inert gas control valve (96), and the inert gas is argon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610874755.3A CN106388930B (en) | 2016-10-08 | 2016-10-08 | Cold and hot knife workstation and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610874755.3A CN106388930B (en) | 2016-10-08 | 2016-10-08 | Cold and hot knife workstation and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106388930A CN106388930A (en) | 2017-02-15 |
| CN106388930B true CN106388930B (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610874755.3A Active CN106388930B (en) | 2016-10-08 | 2016-10-08 | Cold and hot knife workstation and control method |
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| CN111671512B (en) * | 2020-06-18 | 2024-02-09 | 沈阳鹏悦科技有限公司 | Freezing electricity blocking system |
| CN113842201A (en) * | 2020-06-26 | 2021-12-28 | 天津美电医疗科技有限公司 | Split type outer sleeve ablation probe with freezing function and method |
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