WO2014208200A1 - Système de cathéter - Google Patents

Système de cathéter Download PDF

Info

Publication number
WO2014208200A1
WO2014208200A1 PCT/JP2014/062128 JP2014062128W WO2014208200A1 WO 2014208200 A1 WO2014208200 A1 WO 2014208200A1 JP 2014062128 W JP2014062128 W JP 2014062128W WO 2014208200 A1 WO2014208200 A1 WO 2014208200A1
Authority
WO
WIPO (PCT)
Prior art keywords
power supply
power
stop
control
switch
Prior art date
Application number
PCT/JP2014/062128
Other languages
English (en)
Japanese (ja)
Inventor
小島　康弘
Original Assignee
日本ライフライン株式会社
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 日本ライフライン株式会社 filed Critical 日本ライフライン株式会社
Publication of WO2014208200A1 publication Critical patent/WO2014208200A1/fr

Links

Images

Classifications

    • 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
    • A61B18/1206—Generators therefor
    • 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
    • A61B18/1233—Generators therefor with circuits for assuring patient safety
    • 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
    • A61B2018/00702—Power or energy
    • A61B2018/00708—Power or energy switching the power on or off
    • 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

Definitions

  • the present invention relates to an ablation catheter used for the treatment of, for example, arrhythmia, a power supply device, and a catheter system including a foot switch.
  • the electrode catheter is inserted into the body (for example, the inside of the heart) through a blood vessel, and is used for arrhythmia examination and treatment.
  • the shape near the tip (distal end) of the catheter tube inserted into the body is attached to the proximal end (proximal end, rear end, hand side) placed outside the body. Depending on the operation of the part, it changes (deflects, curves, bends) in one direction or both directions.
  • the shape near the tip is fixed.
  • the present invention has been made in view of such problems, and an object thereof is to provide a catheter system capable of further improving safety.
  • a catheter system includes an ablation catheter, a power supply device that supplies power to the ablation catheter during ablation, and a foot for switching control between an execution state and a stop state of the power supply in the power supply device. And a switch.
  • the power supply apparatus includes a power supply unit that performs the power supply, a power stop switch that controls the power supply to be stopped, and a control unit that controls the operation of the power supply in the power supply unit. This control unit gives priority to stop control by the power stop switch over switching control by the foot switch.
  • the stop control of power supply to the ablation catheter by the power stop switch provided in the power supply device is given priority over the switching control between the execution state and stop state of the power supply by the foot switch. Be controlled.
  • the power supply stop control is performed in which the judgment of the operator of the power supply apparatus is given priority rather than the judgment of one operator of the foot switch.
  • the control unit supplies the power supply during the effective period of the stop control regardless of whether the execution state or the stop state is set in the switching control. It is preferable to forcibly stop, and to reflect the setting of the execution state or the stop state in the switching control as it is in the invalid period of the stop control. In such a configuration, forcible stop of power supply is realized in the effective period of the stop control while maintaining the switching control operation by the foot switch in the ineffective period of the stop control by the power stop switch. That is, it is possible to switch between the effective period and the invalid period of the above-described preferential power supply stop control by one operation of the power stop switch.
  • the period during which the power stop switch is pressed or the period from when the power stop switch is pressed once until it is pressed again can be set as the effective period of the stop control.
  • the former case makes it easier for the operator of the power supply apparatus to grasp the current setting state (whether the valid period or the invalid period is set). This makes it easier to avoid misjudgment.
  • the latter case it is not necessary to keep pressing the power stop switch as in the former case, so that the operability during the stop control is improved.
  • the foot switch can be disposed away from the power supply device, for example.
  • the operator of the power supply device controls the foot switch operator to perform switching control by the foot switch (from the power supply execution state to the stop state). It is particularly difficult to prompt the switching operation. Therefore, the advantage of the preferential power supply stop control by the power stop switch described above becomes more remarkable.
  • the stop control by the power stop switch is given priority over the switching control by the foot switch, for example, when a sudden accident that is difficult for the operator of the foot switch to occur is generated. Even in this case, the power supply operation can be quickly stopped. Therefore, safety can be further improved.
  • FIG. 1 is a block diagram schematically illustrating an overall configuration example of a catheter system according to an embodiment of the present invention. It is a schematic diagram showing the detailed structural example of the ablation catheter shown in FIG. It is a schematic diagram showing an example of the electric power supply control using two types of switches. It is a timing diagram showing typically an example of the effective period / ineffective period of stop control. FIG. 6 is a timing diagram schematically illustrating another example of a valid period / invalid period of stop control.
  • FIG. 1 is a block diagram schematically showing an example of the entire configuration of a catheter system (catheter system 5) according to an embodiment of the present invention.
  • the catheter system 5 is a system used for treating arrhythmia or the like in a patient (patient 9 in this example), and includes an ablation catheter 1, a foot switch 2, a power supply device 3, and a counter electrode plate 4.
  • the ablation catheter 1 is an electrode catheter that is inserted into the body of a patient 9 through a blood vessel and performs treatment such as arrhythmia by ablating the affected area.
  • FIG. 2 schematically shows a schematic configuration example of the ablation catheter 1.
  • the ablation catheter 1 has a shaft 11 (catheter shaft) as a catheter body and an operation unit 12 attached to the proximal end of the shaft 11.
  • the shaft 11 is composed of a flexible tubular structure (tubular member) and has a shape extending along its own axial direction (Z-axis direction). Further, the shaft 11 has a so-called single lumen structure in which one lumen (pore, through-hole) is formed so as to extend along its own axial direction, or a plurality of (for example, four) lumens are formed. So-called multi-lumen structure. In the shaft 11, both a region having a single lumen structure and a region having a multi-lumen structure may be provided. Various kinds of thin wires (not shown) (conductive wires, operation wires, etc.) are inserted through such lumens while being electrically insulated from each other.
  • a mechanism for measuring the temperature in the vicinity of the front end P1 (around the affected area) is provided.
  • a thermocouple or the like as a temperature sensor for measuring such temperature is inserted through the lumen inside the shaft 11. The temperature in the vicinity of the distal end P1 measured in this manner is supplied from the ablation catheter 1 to the power supply device 3 as measured temperature information Tm.
  • Such a shaft 11 is made of, for example, a synthetic resin such as polyolefin, polyamide, polyether polyamide, or polyurethane.
  • the axial length of the shaft 11 is about 500 to 1200 mm (for example, 1170 mm), and the outer diameter of the shaft 11 (the outer diameter of the XY cross section) is about 0.6 to 3 mm (for example, 2). 0.0 mm).
  • a plurality of electrodes are provided. Is provided. Specifically, the ring-shaped electrodes 111 a, 111 b, 111 c and the tip electrode 112 are arranged at a predetermined interval in this order toward the most distal side of the shaft 11 in the vicinity of the tip P 1.
  • the ring electrodes 111 a, 111 b, and 111 c are each fixedly disposed on the outer peripheral surface of the shaft 11, while the tip electrode 112 is fixedly disposed at the forefront of the shaft 11.
  • These electrodes are electrically connected to the operation unit 12 through a plurality of conductive wires (not shown) inserted through the lumen of the shaft 11 described above.
  • Such ring-shaped electrodes 111a, 111b, 111c and the tip electrode 112 are electrically conductive, such as aluminum (Al), copper (Cu), stainless steel (SUS), gold (Au), platinum (Pt), respectively. It is comprised with the metal material with favorable property. In addition, in order to make the contrast property with respect to X-rays favorable at the time of use of the ablation catheter 1, it is preferable to be comprised with platinum or its alloy. Further, the outer diameters of the ring-shaped electrodes 111a, 111b, 111c and the tip electrode 112 are not particularly limited, but are preferably approximately the same as the outer diameter of the shaft 11 described above.
  • the operation unit 12 is attached to the proximal end of the shaft 11 and includes a handle 121 (gripping unit) and a rotating plate 122.
  • the handle 121 is a portion that is gripped (gripped) by an operator (doctor) when the ablation catheter 1 is used. Inside the handle 121, the various thin wires described above extend from the inside of the shaft 11.
  • the rotating plate 122 is a member for performing a deflection movement operation (swing operation), which is an operation for deflecting the vicinity of the tip of the shaft 11. Specifically, here, as shown by the arrow in FIG. 2, an operation of rotating the rotating plate 122 along the rotation direction d1 is possible.
  • a deflection movement operation tilt operation
  • the foot switch 2 is a switch for switching control between an execution state and a stop state of power supply described later in the power supply device 3.
  • the foot switch 2 is disposed, for example, near the foot of the operator (doctor) of the ablation catheter 1 standing around the patient 9. That is, the foot switch 2 is spaced from the power supply device 3, for example. From such a foot switch 2, for example, a control signal CTLf indicating these states is output in accordance with the on state (pressed state) and the off state (not pressed state).
  • the power is supplied to the power supply device 3 (a control unit 35 described later) through the signal line. The details of the power supply switching control by the foot switch 2 will be described later.
  • the power supply device 3 is a device (high-frequency generator) that supplies power (for example, output power Pout composed of radio frequency (RF)) during ablation to the ablation catheter 1 and the counter electrode plate 4.
  • the power supply device 3 includes an input unit 31 including a power stop switch 31S described later, a power supply unit 32, a voltage measurement unit 33, a current measurement unit 34, a control unit 35, and a display unit 36. ing.
  • the input unit 31 is a part for inputting various setting values and an instruction signal for instructing a predetermined operation.
  • set values are input by an operator (for example, an engineer) of the power supply device 3.
  • the threshold power may not be input by the operator but may be set in advance in the power supply device 3 at the time of shipment of the product.
  • the set value and the instruction signal input by the input unit 31 are supplied to the control unit 35, respectively.
  • Such an input unit 31 is configured using, for example, a predetermined dial, button, touch panel, or the like.
  • the input unit 31 includes a power stop switch 31S as a switch for inputting the control signal CTLs which is one of the instruction signals described above.
  • the power stop switch 31S is a switch for performing stop control (forced stop) of power supply from the power supply unit 32 described below. Specifically, for example, according to the on state (pressed state) and the off state (not pressed state) of the power stop switch 31S, the control signal CTLs indicating these states is output, and the stop control described above is performed. The validity period or invalidity period is defined.
  • the control signal CTLs is representatively shown among various setting values and instruction signals inputted in the input unit 31. The details of the power supply stop control by the power stop switch 31S will be described later.
  • the power supply unit 32 is a part that supplies the output power Pout to the ablation catheter 1 and the counter electrode plate 4 in accordance with a control signal CTLp described later.
  • a power supply part 32 is comprised using the predetermined power supply circuit (for example, switching regulator etc.).
  • the frequency is, for example, about 450 kHz to 550 kHz (for example, 500 kHz).
  • the voltage measurement unit 33 is a part that measures (detects) the voltage at the output power Pout output from the power supply unit 32 as needed, and is configured using a predetermined voltage detection circuit. The voltage (measured voltage Vm) measured by the voltage measuring unit 33 in this way is output to the control unit 35.
  • the current measurement unit 34 is a part that measures the current in the output power Pout output from the power supply unit 32 as needed, and is configured using a predetermined current detection circuit.
  • the current (measured current Im) measured by the current measuring unit 34 in this way is output to the control unit 35.
  • the control unit 35 is a part that controls the entire power supply device 3 and performs predetermined arithmetic processing, and is configured using, for example, a microcomputer. Specifically, the control unit 35 first has a function of calculating an actually measured power Pm (corresponding to the power value of the output power Pout) described below. Further, the control unit 35 has a function (power supply control function) for controlling the supply operation of the output power Pout in the power supply unit 32 by using the control signal CTLp.
  • the calculation function of the actually measured power Pm is as follows. That is, the control unit 35 calculates the measured power Pm as needed based on the measured voltage Vm output from the voltage measuring unit 33 and the measured current Im output from the current measuring unit 34. Specifically, the control unit 35 calculates the actually measured power Pm using the following arithmetic expression (1). The actual measurement power Pm calculated by the control unit 35 in this way is output to the display unit 36, for example.
  • Pm (Vm ⁇ Im) (1)
  • the control unit 35 generates the control signal CTLp based on the above-described measured temperature information Tm and outputs the control signal CTLp to the power supply unit 32, thereby adjusting (fine adjustment) the magnitude of the output power Pout.
  • the control unit 35 generates the control signal CTLp based on the above-described measured temperature information Tm and outputs the control signal CTLp to the power supply unit 32, thereby adjusting (fine adjustment) the magnitude of the output power Pout.
  • Tm the temperature near the tip P1 of the shaft 11 indicated by the actually measured temperature information Tm substantially constant (preferably constant), in other words, this temperature is substantially equal to the preset target temperature Tt.
  • the magnitude of the output power Pout is adjusted so as to become (preferably equal).
  • control unit 35 performs control so that the value of the output power Pout increases when the temperature near the tip P1 is equal to or lower than the target temperature Tt.
  • control is performed so that the value of the output power Pout decreases.
  • the actual output power Pout is supplied after appropriate power adjustment is made based on the input set power Ps. In other words, it can be said that the value of the set power Ps described above and the value of the actual output power Pout (measured power Pm) do not necessarily match.
  • control unit 35 performs the power supply stop control (control signal CTLs) by the power stop switch 31S described above during the power supply control, and switches the power supply by the foot switch 2.
  • control control signal CTLf
  • the control is prioritized. Details of such priority control will be described later.
  • the display unit 36 is a part (monitor) that displays various information and outputs it to the outside.
  • Examples of the information to be displayed include the above-described various set values (set power Ps and the like) input from the input unit 31, the measured power Pm supplied from the control unit 35, and the measured temperature supplied from the ablation catheter 1.
  • Information Tm etc. are mentioned.
  • the information to be displayed is not limited to these information, and other information may be displayed instead of or in addition to other information.
  • Such a display part 36 is comprised using the display (For example, a liquid crystal display, a CRT (Cathode
  • Counter electrode 4 For example, as shown in FIG. 1, the counter electrode plate 4 is used while being attached to the body surface of the patient 9 during ablation. Although details will be described later, high-frequency current is applied between the counter electrode 4 and the electrode of the ablation catheter 1 inserted into the body of the patient 9 during ablation.
  • power (output power Pout) at the time of ablation is supplied to the ablation catheter 1 and the counter electrode 4 from the power supply device 3 (power supply unit 32).
  • the counter electrode 4 mounted on the body surface of the patient 9 and the electrodes of the ablation catheter 1 inserted into the body of the patient 9 (the tip electrode 112 and the ring electrode 111a, 111b, 111c).
  • a site to be treated (treatment part) in the patient 9 is selectively ablated, and percutaneous therapy such as arrhythmia is performed.
  • a sudden accident that is difficult for an operator (physician) of the ablation catheter 1 and the foot switch 2 to occur may occur during treatment (ablation).
  • an accident may occur that a doctor is unaware even if he / she observes various types of information on the display unit 36 of the power supply device 3 at any time, and only an operator (such as an engineer) of the power supply device 3 notices. .
  • the foot switch 2 is not desired to be switched to the off state after that (for example, There is a tendency to not release the foot from the foot switch 2). That is, the doctor himself / herself has a tendency that it is difficult to perform switching control from the on state (power supply execution state) to the off state (power supply stop state) by the foot switch 2. This is mainly due to the following reasons (A) and (B).
  • the operator (engineer, etc.) of the power supply device 3 also speaks to the doctor (for example, “An accident occurred. Release the foot switch 2 and set it to the off state. Etc.), and there is a tendency that it is difficult to prompt the switching operation to the off state.
  • FIG. 3 schematically shows an example of power supply control by the control unit 35 using these two types of switches.
  • “ON” of the foot switch 2 means, for example, a state in which the foot switch 2 is pressed (a state in which execution of power supply is instructed), and “OFF” means, for example, a foot switch 2 is a state in which 2 is released (a state in which stop of power supply is instructed).
  • “valid” of the stop control by the power stop switch 31S means an effective period of this stop control (an effective period Ta described later), and “invalid” of the stop control means this stop control. This means an invalid period (an invalid period Tn described later).
  • control unit 35 performs power supply stop control (control signal CTLs) by the power stop switch 31S and power supply switching control (control signal) by the foot switch 2 during power supply control. Priority is given to CTLf).
  • control unit 35 first performs power supply control as follows during the effective period of the stop control by the power stop switch 31S. That is, the control unit 35 forcibly supplies power regardless of whether the power supply execution state (ON state) or the stop state (OFF state) is set in the switching control by the foot switch 2. (See the solid arrow in FIG. 3).
  • control unit 35 performs power supply control as follows in the invalid period of the stop control by the power stop switch 31S. That is, the control unit 35 reflects the setting of the power supply execution state (ON state) or stop state (OFF state) in the switching control by the foot switch 2 as it is (see the broken arrow in FIG. 3).
  • the power supply stop control by the power stop switch 31S is controlled to take priority over the power supply switching control by the foot switch 2, for example, as described above, the operator of the foot switch 2 ( Even if there is a sudden accident that is difficult for doctors to grasp, it will be as follows. That is, the operation of the power stop switch 31S on the power supply device 3 by an operator (such as an engineer) of the power supply device 3 can quickly stop the power supply operation. In other words, the power supply stop control is performed in which the judgment of the engineer or the like is given priority rather than the judgment of one doctor.
  • the power supply stop control is performed as shown by the solid and broken arrows in FIG. That is, during the invalid period of the stop control by the power stop switch 31S, the switching control operation by the foot switch 2 is maintained, and the forced stop of the power supply is realized during the effective period of the stop control. That is, it is possible to switch between the valid period and invalid period of the above-described preferential power supply stop control by one operation of the power stop switch 31S.
  • the effective period and the invalid period of the above-described stop control are respectively set by the power stop switch 31S.
  • the effective period and the invalid period of the above-described stop control are respectively set by the power stop switch 31S.
  • it is defined as follows.
  • the period during which the power stop switch 31S is pressed is defined as the effective period Ta of the stop control, and the power stop switch 31S is not pressed.
  • the period (the period in the “OFF” state) can be defined as the invalid period Tn of the stop control.
  • the period from when the power stop switch 31S is pressed once (after being released) to be pressed again is defined as the effective period Ta of the stop control, and the power stop switch 31S is pressed again.
  • the period from the release to (after being released) until it is pressed again may be defined as the invalid period Tn of the stop control. That is, in the case of FIG. 4B, every time the power stop switch 31S is pressed, the valid period Ta and the invalid period Ta are alternately set.
  • the current setting state (whether the valid period Ta or the invalid period Tn is set or the like) is different from the case defined as shown in FIG. 4B. Can be easily grasped by the operator. Accordingly, erroneous determination during stop control by the power stop switch 31S is easily avoided.
  • FIG. 4B it is not necessary to keep pressing the power stop switch 31S as in the case of FIG. 4A, so that the operability in the stop control using the power stop switch 31S is improved.
  • the power supply stop control by the power stop switch 31S is prioritized over the power supply switching control by the foot switch 2, so that it is difficult for the operator of the foot switch 2 to grasp, for example. Even if a sudden accident occurs, the power supply operation (output power Pout supply operation) can be stopped quickly. Therefore, safety can be further improved.
  • the power supply stop control by the power stop switch 31S is not the operation stop of the entire catheter system 5, but the power supply operation is selectively stopped. That is, for example, other operations in the catheter system 5 such as a temperature measurement operation in the ablation catheter 1 are continued as they are even during the effective period Ta of the stop control. Therefore, it is possible to improve safety as described above while preventing adverse effects on the treatment itself. In contrast, if the entire catheter system 5 is stopped (assuming that an emergency stop switch for the entire catheter system 5 is provided instead of the power stop switch 31S), not only the power supply operation is performed. Since other operations are also stopped, the treatment is hindered.
  • the foot switch 2 is arranged separately from the power supply device 3, the following effects can be obtained. That is, first, in the case of such a distant arrangement, for example, when the above-described sudden accident occurs, the operator of the power supply device 3 controls the switching of the foot switch 2 by the foot switch 2 ( It is particularly difficult to prompt a switching operation from a power supply execution state to a stop state. Therefore, the advantage of the preferential power supply stop control by the power stop switch 31S described above becomes more remarkable.
  • each member described in the above embodiment is not limited, and other materials may be used.
  • the structure of the ablation catheter 1 was mentioned concretely and demonstrated, it is not necessary to necessarily provide all the members, and you may further provide other members.
  • a leaf spring that can be deformed in the bending direction may be provided inside the shaft 11 as a swinging member.
  • the configuration of the electrodes in the shaft 11 is not limited to that described in the above embodiment.
  • the ablation catheter of the type in which the shape of the shaft 11 near the tip P1 changes in one direction in accordance with the operation of the operation unit 12 has been described as an example. That is, the present invention can be applied to, for example, an ablation catheter of a type in which the shape of the shaft 11 near the tip P1 changes in both directions according to the operation of the operation unit 12, and in this case, the operation wire Will be used.
  • the present invention can also be applied to an ablation catheter of a type in which the shape near the tip P1 of the shaft 11 is fixed. In this case, the operation wire, the rotating plate 122, and the like are unnecessary. Become. That is, the operation unit is configured only by the handle 121.
  • the block configuration of the power supply device 3 has been specifically described. However, it is not always necessary to include all the blocks described in the above embodiment, and other blocks are further provided. May be. Further, the catheter system as a whole may further include other devices in addition to the devices described in the above embodiments. Specifically, for example, a catheter system including an irrigation mechanism that allows a liquid such as physiological saline to flow when the affected area is ablated may be used. In this case, a liquid supply unit that supplies irrigation liquid to the ablation catheter is provided in a dedicated device (liquid supply device) or a power supply device (control device).

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Public Health (AREA)
  • Cardiology (AREA)
  • Surgical Instruments (AREA)

Abstract

On décrit un système de cathéter pouvant améliorer davantage la sécurité. Ce système de cathéter (5) comprend un cathéter d'ablation (1), une source d'alimentation (3) alimentant en énergie (opération d'alimentation en puissance de sortie Pout) le cathéter d'ablation (1) au cours d'une ablation, et un interrupteur au pied (2) pour effectuer une commande de commutation entre un état d'exécution et un état d'arrêt d'alimentation en énergie dans la source d'alimentation (3). La source d'alimentation (3) comprend une unité d'alimentation électrique (32) qui fournit l'énergie, un interrupteur d'arrêt d'alimentation (31S) qui commande l'arrêt de l'alimentation électrique, et une unité de commande (35) qui commande les opérations d'alimentation électrique dans l'unité d'alimentation électrique (32). L'unité de commande (35) donne priorité à la commande d'arrêt par l'interrupteur d'arrêt d'alimentation (31S) sur la commande de commutation par l'interrupteur au pied (2).
PCT/JP2014/062128 2013-06-27 2014-05-02 Système de cathéter WO2014208200A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013135475A JP2015008830A (ja) 2013-06-27 2013-06-27 カテーテルシステム
JP2013-135475 2013-06-27

Publications (1)

Publication Number Publication Date
WO2014208200A1 true WO2014208200A1 (fr) 2014-12-31

Family

ID=52141553

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/062128 WO2014208200A1 (fr) 2013-06-27 2014-05-02 Système de cathéter

Country Status (2)

Country Link
JP (1) JP2015008830A (fr)
WO (1) WO2014208200A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6853145B2 (ja) * 2017-08-29 2021-03-31 日本ライフライン株式会社 アブレーションシステム
WO2022091224A1 (fr) * 2020-10-27 2022-05-05 日本ライフライン株式会社 Système d'ablation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003010207A (ja) * 2001-06-29 2003-01-14 Terumo Corp 加熱治療装置
US20120232547A1 (en) * 2011-03-08 2012-09-13 Cohen Todd J Ablation catheter system with safety features

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003010207A (ja) * 2001-06-29 2003-01-14 Terumo Corp 加熱治療装置
US20120232547A1 (en) * 2011-03-08 2012-09-13 Cohen Todd J Ablation catheter system with safety features

Also Published As

Publication number Publication date
JP2015008830A (ja) 2015-01-19

Similar Documents

Publication Publication Date Title
JP5148092B2 (ja) エネルギ手術装置
WO2016141639A1 (fr) Dispositif d'ablation par radiofréquence et système d'ablation par radiofréquence
JP5737765B2 (ja) カテーテルシステム
TWI564042B (zh) 導管系統
WO2014208200A1 (fr) Système de cathéter
JP5641591B1 (ja) カテーテルシステム
JP2006289061A (ja) 電気外科手術装置
WO2017056551A1 (fr) Système de cathéter
WO2020174650A1 (fr) Système de cathéter
WO2020174651A1 (fr) Système de cathéter
JPH1024048A (ja) 感圧機構付き外科用ハンドピース
KR102045714B1 (ko) 제세동 카테터 시스템
JP6608260B2 (ja) カテーテルシステム
US20230229176A1 (en) Electromedical device control system and method of controlling electromedical device system
CN116421332B (zh) 一种介入手术机器人系统及其主端机构的控制方法
WO2021186599A1 (fr) Système d'ablation
US10687885B2 (en) Method and device for controlling an electrosurgical HF apparatus and HF apparatus
JP2016067574A (ja) 神経刺激装置
JP2023143342A (ja) 電源装置、電気医療デバイスシステムおよび給電方法
JPH04158857A (ja) 電気手術器
JP2012210361A (ja) 肢部圧迫装置
JP2013202264A (ja) 心筋焼灼制御装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14818146

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14818146

Country of ref document: EP

Kind code of ref document: A1