CN116196083A - Urethral catheter and device with conductive structure - Google Patents

Urethral catheter and device with conductive structure Download PDF

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Publication number
CN116196083A
CN116196083A CN202111443263.6A CN202111443263A CN116196083A CN 116196083 A CN116196083 A CN 116196083A CN 202111443263 A CN202111443263 A CN 202111443263A CN 116196083 A CN116196083 A CN 116196083A
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CN
China
Prior art keywords
catheter
conductive structure
temperature
channel
flexible catheter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111443263.6A
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Chinese (zh)
Inventor
赵国江
宋子豪
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Medinas Tianjin Technology Co ltd
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Medinas Tianjin Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Medinas Tianjin Technology Co ltd filed Critical Medinas Tianjin Technology Co ltd
Priority to CN202111443263.6A priority Critical patent/CN116196083A/en
Publication of CN116196083A publication Critical patent/CN116196083A/en
Pending legal-status Critical 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
    • A61B18/02—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
    • 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
    • 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
    • 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
    • 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
    • A61M25/0017—Catheters; Hollow probes specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections
    • 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
    • A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M25/0026—Multi-lumen catheters with stationary elements
    • 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
    • A61M25/10—Balloon catheters
    • 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
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00505—Urinary tract
    • A61B2018/00517—Urinary bladder or urethra
    • 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
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00547—Prostate
    • 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
    • A61B2018/00577—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
    • A61B2018/00636—Sensing and controlling the application of energy
    • A61B2018/00696—Controlled or regulated parameters
    • A61B2018/00714—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
    • A61B18/02—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
    • A61B2018/0212—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques using an instrument inserted into a body lumen, e.g. catheter
    • 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
    • A61B2018/044—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating the surgical action being effected by a circulating hot fluid
    • A61B2018/046—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating the surgical action being effected by a circulating hot fluid in liquid form
    • 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
    • A61B2018/1467—Probes or electrodes therefor using more than two electrodes on a single probe

Abstract

The invention relates to a urethra catheter with a conductive structure, which comprises a flexible catheter, wherein the flexible catheter enters a human bladder through a urethra, the outer surface of the flexible catheter is partially provided with the conductive structure, and the conductive structure is arranged at the prostate part at the outer distal end of the flexible catheter to assist in freezing and electric ablation; a liquid guide channel is arranged in the flexible catheter, and a liquid guide port is arranged at the distal end of the flexible catheter; the urethra catheter has a heat preservation function, and the temperature protection channel is divided into a liquid inlet channel and a liquid outlet channel by an inner sleeve and an outer sleeve; the outer wall of the inner sleeve is provided with a surface electrode which is connected to a circuit of the host; the conductive structure is only conductive and does not react electrochemically. The invention is used for matching and completing the diagnosis and treatment of electric effect or electric ablation and the thermal ablation of freezing, radio frequency, microwave and the like, can avoid cold and hot injury or electric injury to urethra or prostate, has the temperature regulating function, and has simple structure and easy regulation.

Description

Urethral catheter and device with conductive structure
Technical field:
the invention relates to the field of medical appliances, in particular to a urethral catheter and a urethral catheter device with a conductive structure.
The background technology is as follows:
catheters generally do not have other additional functions, and ablation or auxiliary ablation of a target area while catheterizing is a development direction required in the art, and ablation includes cryoablation (argon helium freezing, liquid nitrogen freezing, carbon dioxide freezing, laughing gas freezing, etc.), thermal ablation (radio frequency ablation, microwave ablation, laser ablation, ultrasonic focusing ablation, infrared ablation, electrothermal ablation, etc.), electric ablation (electrochemical ablation, electric pulse ablation and TTF alternating therapeutic electric field), and other local ablation methods (such as cryoplasma, ozone, etc.). Most ablative procedures inactivate tumor tissue by the cold and hot effects.
The cold and hot ablation of tumors in close proximity to or surrounding the natural human body cavity (such as airway, alimentary canal, urethra, genital tract, nasal cavity and the like) often causes frostbite or burn of the natural human body cavity; or the tumor is not thoroughly ablated in consideration of body cavity injury; the method is characterized in that a large amount of electrochemical products are generated at a target position while the natural cavity of the human body is electrically ablated, and threats are generated on the natural cavity of the human body, and the current common method is to avoid the damage to the natural cavity of the human body by relying on image positioning, but the operation difficulty is high, the complications are more, and the tumor residues are large.
The invention comprises the following steps:
in order to solve the existing problems, the invention provides a urethral catheter and a urethral catheter device with a conductive structure, which are matched with direct or auxiliary ablation capability through a protective structure, and comprise the combination of electric ablation and cold ablation, so that the urethral catheter can directly or auxiliary ablate the bladder or the prostate and can effectively protect the urethra while catheterizing.
The invention selects a urethra catheter with a conductive structure, which comprises a flexible catheter, wherein the flexible catheter enters a human bladder through a urethra, a conductive structure is arranged on part of the surface of the flexible catheter, and the conductive structure is arranged at the outer distal end of the flexible catheter and acts on a prostate part to assist electrochemical ablation; a liquid guide channel is arranged in the flexible catheter, and a liquid guide port is formed in the distal end of the flexible catheter; the inside of the flexible catheter is also provided with a temperature protection channel, the temperature protection channel is adjacent to the liquid guide channel, and the temperature protection channel is separated into a temperature protection liquid inlet channel and a temperature protection liquid discharge channel by a blocking pipe wall; the blocking pipe wall and/or the inner wall of the temperature protection channel are/is provided with electrodes; the conductive structure is only conductive and does not undergo an electrochemical reaction at the location of the conductive structure.
Further, the material selected for the conductive structure and/or the electrode is an electrochemically inert material.
Further, the electrochemically inert material is a graphite material.
Further, a protective layer is arranged on the surface of the conductive structure, and the protective layer is used for neutralizing electrochemical products.
Further, the conductive structures and electrodes may be used for electrical heating.
Further, a balloon-like expansion cavity is arranged at the distal end of the flexible catheter, the balloon-like expansion cavity is communicated with the temperature protection channel, and the balloon-like expansion cavity is used for fixing the position of the flexible catheter.
Further, the urethral catheter further comprises a temperature sensor, and the temperature sensor is arranged on the surface of the urethral catheter and used for detecting the temperature of a contact position.
Further, the urethral catheter also includes a temperature sensor coupled to the conductive structure.
The invention also provides a host machine suitable for the flexible catheter, which comprises a freezing generator, a heat generator, fluid supply equipment, temperature control equipment and an electric generator, wherein the freezing generator is matched with the heat generator, the fluid temperature of the fluid supply equipment is regulated to the protection temperature required by the urethra under the control of the temperature control equipment, and the fluid supply equipment is communicated with the liquid guide channel and the temperature protection channel; the electrical generator is for assisting electrochemical ablation, including electrolytic ablation and/or electrical pulse ablation.
Further, the electrical generator may apply an alternating current, which is used to generate the TTF treatment field.
The invention has the following advantages: (1) Can assist the tumor ablation instrument to complete electrochemical and/or cryoablation;
(2) Electrochemical damage to the urethra, bladder or prostate can be avoided when electrochemical ablation is performed;
(3) Has the temperature adjusting function and simple structure and is easy to adjust and control.
Description of the drawings:
FIG. 1 is a schematic overall cross-sectional view of a balloon flexible catheter of the present invention
FIG. 2 is a schematic overall cross-sectional view of a balloon flexible catheter of the present invention having a heating wire
FIG. 3 is a schematic view of a balloon flexible catheter of the present invention in cross-section in the AA' direction
FIG. 4 is a schematic overall cross-sectional view of a flexible catheter of the invention
FIG. 5 is a schematic view of a BB' cross-section of a balloon flexible catheter of the present invention
FIG. 6 is a schematic diagram of the operation of the present invention
FIG. 7 is a block diagram of a host, catheter, and mating device of the present invention
Figure 8 is a radial cross-sectional view of the invention along the urethra in combination with an ablation probe
Figure 9 is an axial cross-sectional view of the invention along the urethra in combination with an ablation probe
FIG. 10 is a schematic cross-sectional view of a conductive structure according to the present invention
In the figure: 1-balloon flexible catheter, 101-catheter channel, 1011-catheter port, 1012-fluid delivery port, 102-temperature protection inlet channel, 1021-fluid input port, 103-balloon inflation lumen, 1031-balloon fluid channel, 1032-balloon fluid inlet port, 104-temperature protection drain channel, 1041-conductive structure, 10411-conductive gel, 10412-conductive through-hole, 1042-electrode, 1043-electrode wire, 1044-temperature measurement wire, 1045-heating wire, 2-flexible catheter, 201-second catheter channel, 2011-second catheter port, 2012-second fluid delivery port, 202-second temperature protection inlet channel, 2021-second fluid input port, 203-second temperature protection drain channel, 2031-second conductive structure, 2032-second conductive structure protective layer
The specific embodiment is as follows:
the invention is mainly used for ablating focus of bladder and/or prostate, the invention enters the bladder through urethra, the flexible conduit part is arranged in urethra and the far end is arranged in bladder, the selected ablation mode can be independently or combined by cryoablation, thermal ablation or electric effect treatment (comprising electrochemistry, electric pulse, alternating electric field and other electric effects using electric field, current or voltage), the invention is provided with a fluid cavity, the focus can be subjected to cold ablation or thermal ablation according to the difference of cold fluid or hot fluid introduced into the fluid cavity, the conductive part arranged outside the invention can be electrified to perform electric ablation, and the electric ablation can be divided into electrochemical ablation and/or electric pulse ablation, and the two can be combined for use. In the electrochemical ablation, at least two electrodes are needed, so that more than two electrodes can be arranged on the electrode, and one electrode can be arranged on the electrode, but the problem that electrochemical products generated by electrode corrosion have toxicity is noted. The conductive structure is only conductive but does not undergo electrochemical reactions, including electrolytic reactions, at the location of the conductive structure. Reference is made in particular to the following examples.
Examples: referring to fig. 1 and 3, fig. 1 is a cross-sectional view of a balloon flexible catheter 1, fig. 3 is a cross-sectional view of an AA' of the balloon flexible catheter 1 according to the present invention, a liquid guiding channel 101 is provided in the balloon flexible catheter 1, at least one liquid guiding port 1011 is provided at a distal end of the balloon flexible catheter 1 for communicating with the liquid guiding channel 101, the liquid guiding channel 101 can input liquid into a bladder or withdraw liquid from the bladder, the specific effect is to clean the bladder or flush the bladder with liquid, the whole appearance of the balloon flexible catheter 1 is a flexible structure, for example, latex materials can be selected as an outer structure, and the materials can be replaced with other plastic materials but the biocompatibility should be ensured. The distal end of this embodiment is provided with an assembly for fixing the position of the present invention, specifically a balloon-like inflation lumen 103 in this embodiment, it should be noted that the balloon-like inflation lumen 103 may be a balloon as disclosed for the present invention, or may be just an inflation lumen (with a portion of the outer wall protruding or being more easily inflated by liquid), and the balloon-like inflation lumen 103 may be inflated by fluid after entering the bladder through the urethra so that the present invention does not fall off; it should be noted that this configuration is not required and that the balloon-less inflation lumen 103 may be configured as shown in fig. 4, and that the primary function of the present invention may still be accomplished with the illustrated configuration. The fluid introduced into the balloon-like expansion chamber 103 may be gas or liquid, and may be low temperature, high temperature or normal temperature, the normal temperature fluid is only used for inflating the balloon, and may specifically be any safe (generally biocompatible, nontoxic and harmless) fluid, in this embodiment, the channel for supplying the fluid into the balloon-like expansion chamber 103 is a temperature protection liquid inlet channel 102, the corresponding channel for discharging the fluid in the balloon-like expansion chamber 103 is a temperature protection liquid discharge channel 104, the two channels are separated by a barrier tube wall, and the two channels may be arranged reversely, namely: the whole outer layer is set as a temperature protection liquid discharge channel 104, the inner layer is set as a temperature protection liquid inlet channel 102, the exchange does not affect the implementation of the invention, at least one electrode 1042 is arranged on the barrier tube wall or the temperature protection liquid discharge channel 104, an electrode lead 1043 is communicated with the electrode 1042, the electrode lead 1043 transmits an electrochemical ablation signal to the electrode 1042, the electrochemical ablation signal can be an electric pulse signal and/or an electrochemical signal, the electrode can apply alternating current to a focus, and the alternating current is used for generating a TTF treatment field (tumor treatment electric field); the fluid supplied inside the balloon-like expansion chamber 103 should be electrically conductive and biocompatible for safety, such as: physiological saline; to direct the current to the human body, the present invention is further provided with a conductive structure 104, and the conductive structure 1041 and the electrode 1042 are preferably made of inert materials, such as: graphite; except for the conductive structure 1041, the remaining portion that contacts the human body is electrically insulated, and the conductive structure 1041 may refer to fig. 10, and fig. 10 is an alternative form of conductive structure, in which the outer surface of the balloon flexible catheter 1 is perforated with at least one conductive through hole 10412 and conductive bodies are attached to the hollow portion and both sides of the conductive through hole 10412, for example: the conductive gel 10411, the structure can make the fluid flowing in the cavity conduct to the conductive structure 1041 to make it charged after the electrode 1042 is charged so as to promote the effect of assisting electrochemical ablation, note that the sealing of the part prevents leakage, by adopting the structure, the conductive gel 10411 can be prepared into a protective layer with the effect of neutralizing the electrolytic product, and the structure can make the accumulated electrolytic product near the conductive structure also be neutralized by the protection of the conductive gel 10411; conductive structures 104 may also be provided on the surface of the balloon-like inflation lumen 103.
The embodiment further has a temperature measuring line 1044, where the temperature measuring line 1044 is preferably disposed on the electrode 1042 or the conductive structure 1041, when the temperature measuring line 1044 is disposed on the electrode 1042, referring to fig. 2, the electrode 1042 should be connected with a heating wire 1045, so that the temperature measuring line 1044 can accurately detect the temperature of the heating source, and in the case of the structure with the heating wire 1045, the temperature of the fluid (i.e. introduced into the balloon-like expansion cavity 103) can be controlled by the heating wire 1045; when the temperature measuring line is arranged on the 1044, referring to fig. 1, the temperature measuring mode can directly detect the temperature of the conductive structure 1041 at the contact part with the human body so as to prevent the urethra from being damaged due to the too high or the too low temperature at the position; it should be noted that the above-mentioned temperature measurement method is a preferable method, and the temperature measurement points can be disposed at any place of the balloon flexible catheter 1, so that the influence on the accuracy of the temperature measurement result data can be avoided as much as possible by the calculation of the heat loss.
Referring to fig. 7, the balloon flexible catheter 1 is provided with a host machine with low-temperature fluid and high-temperature fluid output, and the whole temperature control of the invention is mainly performed by means of a freezing generator and/or a heat generator and a fluid supply device matched with the temperature control device (temperature control heater), the scheme is only one of alternatives, any technology suitable for heating or cooling the fluid in the prior art can be selected for the temperature control function, the technology is not particularly limited, the high-temperature fluid (the equilibrium temperature of the freezing generator can be used for preventing the temperature from being too high) is introduced into a temperature protection liquid inlet channel 102 for protecting the urethra, then the balloon expansion cavity 103 is filled by the balloon expansion cavity 103 for preventing the balloon flexible catheter 1 from falling off and then the temperature protection liquid outlet channel 104 is discharged, and the process of introducing and discharging the fluid into the temperature protection channel can be performed by a peristaltic pump or other means disclosed.
The host in this embodiment has a temperature control heater, so that the host can receive the temperature signal detected by the temperature measuring line 1044, and manually or automatically adjust the temperature of the input fluid by the host, so as to ensure that the fluid output by the fluid supply device will not damage the parts such as urethra, prostate or bladder, and ensure that the heating wire 1045 will not overheat the electrode 1042.

Claims (10)

1. A urinary catheter with conductive structure comprising a flexible catheter which passes through the urinary tract into the urinary bladder of a human being, characterized in that: a conductive structure is arranged on part of the surface of the flexible catheter, and the conductive structure is arranged at the outer distal end of the flexible catheter and acts on the prostate part to assist electrochemical ablation; a liquid guide channel is arranged in the flexible catheter, and a liquid guide port is formed in the distal end of the flexible catheter; the inside of the flexible catheter is also provided with a temperature protection channel, the temperature protection channel is adjacent to the liquid guide channel, and the temperature protection channel is separated into a temperature protection liquid inlet channel and a temperature protection liquid discharge channel by a blocking pipe wall; the blocking pipe wall and/or the inner wall of the temperature protection channel are/is provided with electrodes; the conductive structure is only conductive and does not undergo an electrochemical reaction at the location of the conductive structure.
2. The urinary catheter of claim 1, wherein: the material selected for the conductive structure and/or the electrode is an electrochemically inert material.
3. The urinary catheter of claim 2, wherein: the electrochemically inert material is a graphite material.
4. The urinary catheter of claim 1, wherein: the surface of the conductive structure is provided with a protective layer, and the protective layer is used for neutralizing electrochemical products.
5. The urinary catheter of claim 1, wherein: the conductive structures and electrodes may be used for electrical heating.
6. The urinary catheter of claim 1, wherein: the far end of the flexible catheter is provided with a saccular expansion cavity, the saccular expansion cavity is communicated with the temperature protection channel, and the saccular expansion cavity is used for fixing the position of the flexible catheter.
7. The urinary catheter of claim 1, wherein: the urethral catheter also comprises a temperature sensor which is arranged on the surface of the urethral catheter and used for detecting the temperature of the contact position.
8. The urinary catheter of claim 1, wherein: the urethral catheter also includes a temperature sensor connected to the conductive structure.
9. A host computer for use with the urethral catheter according to any one of claims 1-8, wherein: the device comprises a freezing generator, a heat generator, a fluid supply device, a temperature control device and an electric generator, wherein the freezing generator is matched with the heat generator, the fluid temperature of the fluid supply device is adjusted to the protection temperature required by the urethra under the control of the temperature control device, and the fluid supply device is communicated with the liquid guide channel and the temperature protection channel; the electrical generator is for assisting electrochemical ablation, including electrolytic ablation and/or electrical pulse ablation.
10. The host computer of the urethral catheter according to claim 9, wherein: the electrical generator may apply an alternating current, which is used to generate the TTF treatment field.
CN202111443263.6A 2021-11-30 2021-11-30 Urethral catheter and device with conductive structure Pending CN116196083A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111443263.6A CN116196083A (en) 2021-11-30 2021-11-30 Urethral catheter and device with conductive structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111443263.6A CN116196083A (en) 2021-11-30 2021-11-30 Urethral catheter and device with conductive structure

Publications (1)

Publication Number Publication Date
CN116196083A true CN116196083A (en) 2023-06-02

Family

ID=86506379

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111443263.6A Pending CN116196083A (en) 2021-11-30 2021-11-30 Urethral catheter and device with conductive structure

Country Status (1)

Country Link
CN (1) CN116196083A (en)

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