CN114533256B - Monopole radio frequency ablation catheter system - Google Patents
Monopole radio frequency ablation catheter system Download PDFInfo
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- CN114533256B CN114533256B CN202210047893.XA CN202210047893A CN114533256B CN 114533256 B CN114533256 B CN 114533256B CN 202210047893 A CN202210047893 A CN 202210047893A CN 114533256 B CN114533256 B CN 114533256B
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- 238000007674 radiofrequency ablation Methods 0.000 title claims abstract description 26
- 230000005404 monopole Effects 0.000 title claims abstract description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 42
- 239000010935 stainless steel Substances 0.000 claims abstract description 37
- 238000011282 treatment Methods 0.000 claims abstract description 17
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 11
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 11
- 239000003292 glue Substances 0.000 claims abstract description 8
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 5
- 241000234295 Musa Species 0.000 claims description 17
- 235000018290 Musa x paradisiaca Nutrition 0.000 claims description 17
- 238000003466 welding Methods 0.000 claims description 10
- 238000002161 passivation Methods 0.000 claims description 9
- 206010046996 Varicose vein Diseases 0.000 claims description 6
- 238000011298 ablation treatment Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000005498 polishing Methods 0.000 claims description 6
- 206010029107 Respiratory Tract Neoplasms Diseases 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000002654 heat shrinkable material Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 3
- 230000001575 pathological effect Effects 0.000 claims description 2
- 238000002679 ablation Methods 0.000 abstract description 7
- 238000009529 body temperature measurement Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 210000002345 respiratory system Anatomy 0.000 description 5
- 241000219307 Atriplex rosea Species 0.000 description 3
- 241000316887 Saissetia oleae Species 0.000 description 3
- 208000027185 varicose disease Diseases 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 208000000884 Airway Obstruction Diseases 0.000 description 1
- 208000000059 Dyspnea Diseases 0.000 description 1
- 206010013975 Dyspnoeas Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 206010035664 Pneumonia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000000621 bronchi Anatomy 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002685 pulmonary effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 201000011531 vascular cancer Diseases 0.000 description 1
- 206010055031 vascular neoplasm Diseases 0.000 description 1
Classifications
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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
- A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
-
- 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
-
- 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
- A61B18/1206—Generators therefor
- A61B2018/1246—Generators therefor characterised by the output polarity
- A61B2018/1253—Generators therefor characterised by the output polarity monopolar
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
- A61M2025/0046—Coatings for improving slidability
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M2025/0063—Catheters; Hollow probes characterised by structural features having means, e.g. stylets, mandrils, rods or wires to reinforce or adjust temporarily the stiffness, column strength or pushability of catheters which are already inserted into the human body
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Surgery (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Pulmonology (AREA)
- Biophysics (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Plasma & Fusion (AREA)
- Otolaryngology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Cardiology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides a monopole radio frequency ablation catheter system which is characterized by comprising a catheter module, a sleeve module, a cable module, a connecting module and an electrode head; the catheter module includes a catheter; the sleeve module comprises a fixed sleeve and a heat-shrinkable sleeve; the cable module comprises a stainless steel cable and a cable wire; the connecting module comprises a handle, a plug and a connector. The electrode tip is provided with a plurality of models, is suitable for various conditions, ensures longer ablation length in unit time and has higher treatment speed; the anti-adhesion coating is arranged, so that adhesion problems in the operation process can be prevented; the PTFE outer sleeve has better lubricity and is more convenient for entering the cavity; the O-shaped ring can help doctors record the position of the catheter entering the human body, so that the catheter is convenient to observe; the electrode tip and PTFE are assembled without gaps, glue is not required, the tightness is better, the installation procedure is simple, and the flexibility of the tip is better; the internal cable of the invention has the function of temperature measurement.
Description
Technical Field
The invention relates to the technical field of medical radio frequency ablation, in particular to a monopolar radio frequency ablation catheter system.
Background
Minimally invasive ablation is a development trend in the medical industry, wherein thermal ablation through various ablation electrodes has become the mainstream of ablation treatment means due to the definite effect.
The respiratory tract is the passage through which the air flows during pulmonary breathing. The respiratory tract is divided into an upper part and a lower part: the nose, throat and throat are commonly referred to as the upper respiratory tract. The trachea, bronchus and lung organs are called as lower respiratory tract vascular tumors, and the respiratory tract tumors often cause airway obstruction of different degrees to cause serious dyspnea, and cause complications such as obstructive pneumonia and the like, thereby seriously threatening the lives of patients. Varicose veins refer to venous tortuosity and distension due to blood stasis, weak vein wall and other factors; veins in multiple parts of the body can develop varicose veins, which are common in clinic.
In recent years, along with the comprehensive application of modern advanced equipment technology, the ablation treatment of respiratory tract tumors and varicose veins has obvious advantages, but at present, the means of the ablation treatment are single and limited, and the conventional radio frequency ablation catheter usually has only one electrode tip type, so that the use cost is high, the ablation range in unit time is limited, the flexibility and the lubricity are poor, and the adhesion problem can occur in the operation.
Disclosure of Invention
It is an object of the present invention to provide a monopolar radiofrequency ablation catheter system that solves the problems set forth in the background art above.
In order to achieve the above purpose, the invention adopts the following technical scheme:
A monopole radio frequency ablation catheter system is characterized by comprising a catheter module, a sleeve module, a cable module, a connecting module and an electrode head 1; the catheter module comprises a catheter 3; the sleeve module comprises a fixed sleeve 5 and a heat-shrinkable sleeve 7; the cable module comprises a stainless steel cable 4 and a cable line 9; the connecting module comprises a handle 6, a plug 8 and a connector 10; the electrode tip 1 is arranged at the far end of the catheter 3, the stainless steel cable 4 is arranged in the catheter 3, the plug 8 and the handle 6 are wrapped by a heat shrinkage sleeve 7 arranged outside the plug 8 and the handle 6, the fixing sleeve 5 is connected with the handle 6, the catheter 3 is sleeved in the fixing sleeve, the tail end of the plug 8 is connected with the cable 9, and the tail end of the cable 9 is connected with the connector 10.
The electrode head 1 is in a column shape with a passivation round head, comprises a plurality of models, and particularly comprises a length of 5mm, 10mm, 15mm or 20mm; the electrode tip 1 is made of SUS316L stainless steel, and the surface of the electrode tip is subjected to HRC40-50 heat treatment: the surface of the electrode head 1 is subjected to electrolytic polishing and passivation treatment, and the head end is subjected to anti-adhesion coating treatment; the electrode tip 1 and the guide tube 3 are connected in a welding mode, no gap exists, glue is not applied, the sealing performance is better, and the flexibility of the head end is better.
The catheter 3 comprises a plurality of lengths, in particular 800mm or 1200mm; the catheter 3 comprises an outer catheter 31 which is a PTFE outer sleeve and has good lubricity and is more convenient for entering a cavity; the catheter 3 is sleeved with the O-shaped ring 2, the O-shaped ring 2 is particularly positioned near the electrode tip 1, the O-shaped ring 2 is a rubber ring and is provided with elasticity, particularly red opaque silica gel, and the O-shaped ring is combined with red and black scales on the surface of the stainless steel cable 4, so that a doctor can be helped to record the position of the catheter entering a human body.
The stainless steel wire 4 is made of SUS316L; the stainless steel cable 4 is coated with a PTFE insulating layer, red and black marks are printed on the surface of the insulating layer, and the stainless steel cable 4 is smooth in surface and free of scratch damage.
The inside and the outer surface of the fixed sleeve 5 are cleaned by ultrasonic cleaning, so that no scraps and stains are ensured.
The handle 6 is a banana socket, so that the surface is smooth, no sharp or burr is caused.
The heat-shrinkable sleeve 7 is made of heat-shrinkable material, and at least can be sleeved on the peripheries of the handle 6 and the plug 8 before heat shrinkage; the handle 6 and the plug 8 are directly connected.
The cable 9 comprises a patch cord assembly; the handle end is a copper banana head, the far end is an ABS wrapping plug, the surface of the cable 9 is covered with a black TPU insulating layer, and the surface of the cable is smooth and has no scratch damage.
The method for installing the monopole radio frequency ablation catheter system comprises the following steps:
Performing heat treatment, electrolytic polishing treatment and passivation treatment on the electrode head 1, and welding the electrode head 1 and the stainless steel cable 4; the stainless steel cable 4 is inserted into an inner hole of the electrode and is firmly welded, and the stainless steel cable is not required to fall off; after the electrode head 1 is welded with the stainless steel cable 4, the surface of the electrode head 1 and the counter bore in the electrode head are not required to be provided with welding spots and burnt; inserting a stainless steel wire firmly welded to the electrode into the outer catheter 31; the fixing sleeve 5 is sleeved into the outer guide pipe 31, and the stainless steel cable 4 is inserted into the inner hole of the banana socket and is firmly pressed; the outer guide tube 31 is inserted into the counter bore in the electrode head 1 and fixed by glue; one end of the fixed sleeve 5 is welded with the outer diameter of the banana socket, and the other end is pressed against the outer circumference of the outer guide pipe 31; inserting a banana plug at one end of the connector 10 into a banana socket bore of the catheter assembly; and the heat-shrinkable sleeve 7 is sleeved in, and heat shrinkage is firm.
The monopolar radiofrequency ablation catheter system is applied to ablation treatment of pathological tissues in the human body cavity, and comprises varicose vein treatment and respiratory tract tumor treatment.
Compared with the prior art, the invention has the beneficial effects that:
The electrode tip is provided with a plurality of models, is suitable for various conditions, ensures longer ablation length in unit time, expands the ablation range and has higher treatment speed; the anti-adhesion coating is arranged, so that adhesion problems in the operation process can be prevented; the PTFE outer sleeve has better lubricity and is more convenient for entering the cavity; the surface is provided with red and black scales and a red sheath outlet prompt, so that the insertion depth of the catheter can be indicated; the O-shaped ring can help doctors record the position of the catheter entering the human body, so that the catheter is convenient to observe; the two lengths of the catheter can be used for different parts of the human body; the invention is provided with the bendable stainless steel cable, and the plasticity of the cable enables the catheter to adapt to more parts; the electrode tip and PTFE are assembled without gaps, glue is not required, the tightness is better, the installation procedure is simple, and the flexibility of the tip is better; the internal cable of the invention has the function of temperature measurement.
The catheter has the application range that the radio frequency energy is transmitted to the electrode at the top end of the catheter to generate heat to burn and solidify, so that the ablation treatment of varicose vein and tumor tissue of respiratory tract is carried out.
Drawings
FIG. 1 is a schematic diagram of a monopolar radiofrequency ablation catheter of the present invention;
FIG. 2 is a schematic view of a cross-sectional structure of a portion of a monopolar radiofrequency ablation catheter of the present invention;
FIG. 3 is a schematic view of a portion of a monopolar radiofrequency ablation catheter of the present invention;
FIG. 4 is a schematic illustration of a monopolar radiofrequency ablation catheter electrode tip portion weld of the present invention;
FIG. 5 is a schematic view of the outer catheter structure of the monopolar radiofrequency ablation catheter of the present invention;
FIG. 6 is a schematic view of a monopolar radiofrequency ablation catheter stainless steel cable configuration of the present invention;
FIG. 7 is a schematic view of a monopolar radiofrequency ablation catheter securement sleeve of the present invention;
FIG. 8 is a schematic view of a monopolar radiofrequency ablation catheter handle configuration of the present invention;
FIG. 9 is a schematic cross-sectional view of a monopolar radiofrequency ablation catheter handle of the present invention;
FIG. 10 is a schematic view of a heat shrink tube structure of a monopolar radiofrequency ablation catheter of the present invention;
FIG. 11 is a frame view of a monopolar radiofrequency ablation catheter system of the present invention;
In the figure: A. a welding region; B. a steel wire; C. a PTFE insulating layer; 1. an electrode head; 2. an O-ring; 3. a conduit; 31. an outer conduit; 4. a stainless steel cable; 5. fixing the sleeve; 6. a handle; 7. a heat-shrinkable sleeve; 8. a plug; 9. a cable; 10. a connector.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by persons skilled in the art without making creative efforts based on the embodiments in the present invention are all within the protection scope of the present invention.
Examples
As shown in fig. 11, a monopolar radiofrequency ablation catheter system is characterized by comprising a catheter module, a sleeve module, a cable module, a connection module and an electrode tip 1; the catheter module comprises a catheter 3; the sleeve module comprises a fixed sleeve 5 and a heat-shrinkable sleeve 7; the cable module comprises a stainless steel cable 4 and a cable line 9; the connecting module comprises a handle 6, a plug 8 and a connector 10; as shown in fig. 1-3, the electrode tip 1 is disposed at the distal end of the catheter 3, the stainless steel cable 4 is disposed in the catheter 3, the plug 8 and the handle 6 are wrapped by a heat-shrinkable sleeve 7, the fixing sleeve 5 is connected with the handle 6, the catheter 3 is sleeved in the fixing sleeve, the cable 9 is connected to the tail end of the plug 8, and the connector 10 is connected to the tail end of the cable 9.
As shown in fig. 4, the electrode head 1 has a column shape with a passivation round head, and comprises a plurality of models, and specifically comprises a length of 5mm, 10mm, 15mm or 20mm; the electrode tip 1 is made of SUS316L stainless steel, and the surface of the electrode tip is subjected to HRC40-50 heat treatment: the surface of the electrode head 1 is subjected to electrolytic polishing and passivation treatment, and the head end is subjected to anti-adhesion coating treatment; the electrode tip 1 and the guide tube 3 are connected in a welding mode, no gap exists, glue is not applied, the sealing performance is better, and the flexibility of the head end is better.
As shown in fig. 5, the catheter 3 comprises various lengths, in particular 800mm or 1200mm; the catheter 3 comprises an outer catheter 31 which is a PTFE outer sleeve and has good lubricity and is more convenient for entering a cavity; the catheter 3 is sleeved with the O-shaped ring 2, the O-shaped ring 2 is particularly positioned near the electrode tip 1, the O-shaped ring 2 is a rubber ring and is provided with elasticity, particularly red opaque silica gel, and the O-shaped ring is combined with red and black scales on the surface of a stainless steel cable, so that a doctor can be helped to record the position of the catheter entering a human body.
As shown in fig. 6, the steel wire material of the stainless steel wire 4 is SUS316L; the stainless steel cable 4 is coated with a PTFE insulating layer, red and black marks are printed on the surface of the insulating layer, and the stainless steel cable 4 is smooth in surface and free of scratch damage.
As shown in fig. 7, the inside and the outside surface of the fixed sleeve 5 are cleaned by ultrasonic cleaning, so as to ensure no scraps and stains.
As shown in fig. 8-9, the handle 6 is a banana socket, ensuring smooth surface, no sharp edges and no burrs.
As shown in fig. 10, the heat-shrinkable sleeve 7 is made of heat-shrinkable material, and at least can be ensured to be sleeved on the peripheries of the handle 6 and the plug 8 before heat shrinkage; the handle 6 and the plug 8 are directly connected.
The cable 9 comprises a patch cord assembly; the handle end is a copper banana head, and the far end is an ABS wrapping plug; the surface of the cable 9 is covered with a black TPU insulating layer, and the surface of the cable is smooth and has no scratch damage.
The method for installing the monopole radio frequency ablation catheter system comprises the following steps:
Performing heat treatment, electrolytic polishing treatment and passivation treatment on the electrode head 1, and welding the electrode head 1 and the stainless steel cable 4; the stainless steel cable 4 is inserted into an inner hole of the electrode and is firmly welded, and the stainless steel cable is not required to fall off; after the electrode head 1 is welded with the stainless steel cable 4, the surface of the electrode head 1 and the counter bore in the electrode head are not required to be provided with welding spots and burnt; inserting a stainless steel wire firmly welded to the electrode into the outer catheter 31; the fixing sleeve 5 is sleeved into the outer guide pipe 31, and the stainless steel cable 4 is inserted into the inner hole of the banana socket and is firmly pressed; the outer guide tube 31 is inserted into the counter bore in the electrode head 1 and fixed by glue; one end of the fixed sleeve 5 is welded with the outer diameter of the banana socket, and the other end is pressed against the outer circumference of the outer guide pipe 31; inserting a banana plug at one end of the connector 10 into a banana socket bore of the catheter assembly; and the heat-shrinkable sleeve 7 is sleeved in, and heat shrinkage is firm.
Note that when the electrode is tested in accordance with annex F in GB18457-2015, the electrode immersed portion is preferably free of corrosion marks.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, and that the foregoing embodiments and description are merely preferred embodiments of the invention, and are not intended to limit the invention, but that various changes and modifications may be made therein without departing from the novel spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. A monopolar radiofrequency ablation catheter system, characterized by comprising a catheter module, a sleeve module, a cable module, a connection module and an electrode tip (1); the catheter module comprises a catheter (3); the sleeve module comprises a fixed sleeve (5) and a heat-shrinkable sleeve (7); the cable module comprises a stainless steel cable (4) and an electric cable (9); the connecting module comprises a handle (6), a plug (8) and a connector (10); the electrode tip (1) is arranged at the far end of the catheter (3), the stainless steel cable (4) is arranged in the catheter (3), the plug (8) and the handle (6) are wrapped by a heat shrinkage sleeve (7), the fixing sleeve (5) is connected with the handle (6), the catheter (3) is sleeved in the fixing sleeve, the tail end of the plug (8) is connected with the cable (9), and the tail end of the cable (9) is connected with the connector (10); the electrode head (1) is in a column shape with a passivation tip, comprises a plurality of models, and particularly comprises a length of 5mm, 10mm, 15mm or 20mm; the electrode tip (1) is made of SUS316L stainless steel, the surface of the electrode tip is subjected to HRC40-50 heat treatment, electrolytic polishing and passivation treatment, and an anti-adhesion coating is arranged on the surface of the electrode tip; the electrode head (1) and the guide pipe (3) are connected in a welding mode without gaps and glue; the catheter (3) comprises a plurality of lengths, in particular 800mm or 1200mm; the catheter (3) comprises an outer catheter (31) which is a PTFE outer sleeve; an O-shaped ring (2) is sleeved on the catheter (3), and is particularly positioned near the electrode head (1), wherein the O-shaped ring (2) is a rubber ring and is elastic, particularly red opaque silica gel; the stainless steel wire (4) is made of SUS316L; the surface of the stainless steel cable (4) is coated with a PTFE insulating layer, the surface of the insulating layer is printed with red and black graduations, and the surface of the stainless steel cable (4) is smooth and has no scratch damage; the inside and the outside surface of the fixed sleeve (5) are cleaned by ultrasonic cleaning; the heat-shrinkable sleeve (7) is made of heat-shrinkable materials, and at least can be sleeved on the peripheries of the handle (6) and the plug (8) before heat shrinkage; the handle (6) is directly connected with the plug (8); -the electrical cable (9) comprises a patch cord assembly; the handle end is a copper banana head, and the far end is an ABS wrapping plug; the surface of the cable (9) is covered with a black TPU insulating layer, and the surface of the cable is smooth and has no scratch damage; the method for installing the monopole radio frequency ablation catheter system comprises the following steps: performing heat treatment, electrolytic polishing treatment and passivation treatment on the electrode tip (1), and welding the electrode tip (1) and the stainless steel cable (4); the stainless steel cable (4) is inserted into an inner hole of the electrode and is firmly welded, and the stainless steel cable is not required to fall off; after the electrode head (1) is welded with the stainless steel cable (4), the surface of the electrode head (1) and the counter bore in the electrode head are not required to be provided with welding spots and burnt; inserting a stainless steel cable firmly welded with the electrode into the outer catheter (31); the fixing sleeve (5) is sleeved into the outer guide pipe (31), and the stainless steel cable (4) is inserted into the inner hole of the banana socket and is firmly pressed; the outer guide tube (31) is inserted into the counter bore in the electrode head (1) and fixed by glue; one end of the fixed sleeve (5) is welded with the outer diameter of the banana socket, and the other end is in pressure connection with the outer circumference of the outer guide pipe (31); inserting a banana plug at one end of the connector (10) into a banana socket bore of the catheter assembly; sleeving the heat-shrinkable sleeve (7), and firmly shrinking; the monopolar radiofrequency ablation catheter system is applied to ablation treatment of pathological tissues in the human body cavity, and comprises varicose vein treatment and respiratory tract tumor treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210047893.XA CN114533256B (en) | 2022-01-17 | 2022-01-17 | Monopole radio frequency ablation catheter system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210047893.XA CN114533256B (en) | 2022-01-17 | 2022-01-17 | Monopole radio frequency ablation catheter system |
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| Publication Number | Publication Date |
|---|---|
| CN114533256A CN114533256A (en) | 2022-05-27 |
| CN114533256B true CN114533256B (en) | 2024-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210047893.XA Active CN114533256B (en) | 2022-01-17 | 2022-01-17 | Monopole radio frequency ablation catheter system |
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| CN103800072A (en) * | 2012-11-09 | 2014-05-21 | 上海微创电生理医疗科技有限公司 | Terminal electrode and method for assembling terminal electrode and electrophysiology catheter |
| CN210784657U (en) * | 2019-06-22 | 2020-06-19 | 河南秦江医疗器械有限公司 | Combined ablation electrode |
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