CN104981217A - Catheter system - Google Patents
Catheter system Download PDFInfo
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- CN104981217A CN104981217A CN201480006855.3A CN201480006855A CN104981217A CN 104981217 A CN104981217 A CN 104981217A CN 201480006855 A CN201480006855 A CN 201480006855A CN 104981217 A CN104981217 A CN 104981217A
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- signal
- power supply
- supply unit
- conduit system
- repeater
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- 238000009529 body temperature measurement Methods 0.000 claims abstract description 74
- 238000002679 ablation Methods 0.000 claims abstract description 70
- 238000012360 testing method Methods 0.000 claims description 68
- 230000000903 blocking effect Effects 0.000 claims description 42
- 230000007246 mechanism Effects 0.000 claims description 33
- 230000009471 action Effects 0.000 claims description 31
- 241001125929 Trisopterus luscus Species 0.000 description 32
- 238000010586 diagram Methods 0.000 description 22
- 230000000694 effects Effects 0.000 description 18
- 238000007689 inspection Methods 0.000 description 17
- 238000005259 measurement Methods 0.000 description 17
- 238000002844 melting Methods 0.000 description 16
- 230000008018 melting Effects 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 15
- 230000015572 biosynthetic process Effects 0.000 description 11
- 238000005755 formation reaction Methods 0.000 description 11
- 206010003119 arrhythmia Diseases 0.000 description 8
- 230000006793 arrhythmia Effects 0.000 description 8
- 238000010276 construction Methods 0.000 description 8
- 239000011148 porous material Substances 0.000 description 8
- 102100031699 Choline transporter-like protein 1 Human genes 0.000 description 6
- 102100035954 Choline transporter-like protein 2 Human genes 0.000 description 6
- 101000940912 Homo sapiens Choline transporter-like protein 1 Proteins 0.000 description 6
- 101000948115 Homo sapiens Choline transporter-like protein 2 Proteins 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 210000004204 blood vessel Anatomy 0.000 description 3
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- 238000006243 chemical reaction Methods 0.000 description 2
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- 230000008569 process Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
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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
- A61B17/00—Surgical instruments, devices or methods
- A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
- A61B2017/003—Steerable
- A61B2017/00318—Steering mechanisms
-
- 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
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00595—Cauterization
-
- 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
- A61B2018/00821—Temperature measured by a thermocouple
-
- 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
- A61B2018/00839—Bioelectrical parameters, e.g. ECG, EEG
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Medical Informatics (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Cardiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
A catheter system capable of obtaining excellent examination waveforms is provided. This catheter system (6) is provided with: an ablation catheter (1) having an electrode and a temperature sensor (thermocouple (113)) near the leading end (P1); a power source (3) which supplies power to the ablation catheter (1) during ablation; a waveform display device (electrocardiogram display device (2)) which displays an examination waveform signal (Sw) measured using the electrode; a repeater (5) through which the temperature measurement signal (St) outputted from the temperature sensor is relayed and supplied to the power source (3), and through which the examination waveform signal (Sw) outputted from the electrode is relayed and supplied to the waveform display device; and a path cut-off switch (52) which is disposed in the output path of the temperature measurement signal (St) and is configured to cut-off said output path.
Description
Technical field
The present invention relates to the conduit system that one possesses ablation catheter (ablationcatheter), supply unit and Waveform display apparatus, such as, can be used for the inspection of arrhythmia etc., treatment.
Background technology
Electrode catheter passes through in blood vessel insertosome (inside of such as heart), for ARR inspection, treatment etc.This electrode catheter in general, shape near the front end (far-end) of the catheter tube in insertosome is according to the operation of operating portion, and on a direction or both direction, change (deflection, bending, flexure), this operating portion is arranged on the cardinal extremity being configured at this external catheter tube, and (near-end, rear end, on hand).In addition, except the type that the shape near this front end can change arbitrarily according to operation, the type that the shape near front end is fixed also is had.
Being mainly used in the conduit (so-called ablation catheter) for the treatment of in this electrode catheter, electric power when melting (burning) is supplied by supply unit (high frequency generating apparatus).The conduit system possessing ablation catheter and supply unit is such as disclosed in patent documentation 1.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 5-42121 publication
Summary of the invention
In this conduit system, use the determination of electrode test waveform (electrocardiographic wave etc.) of ablation catheter, and this test waveform is presented at Waveform display apparatus (so-called polygraph (Polygraph)).In addition, obtain temperature measurement signal by the temperature survey mechanism (such as, the temperature sensor be made up of thermocouple etc.) near the front end being arranged on ablation catheter, and the control part in supply unit utilizes this temperature measurement signal to carry out control temperature.This test waveform signal, temperature measurement signal etc. are supplied to Waveform display apparatus or supply unit from ablation catheter via repeater.
But in repeater, there is the situation overlapping with the noise signal from circuit in these test waveform signals, temperature measurement signal.If particularly noise signal is overlapped in test waveform signal, so in Waveform display apparatus, the risk not easily obtaining (display) good test waveform will be had.Therefore, expect to propose a kind of risk that can reduce or avoid such noise signal overlap, and the method for good test waveform can be obtained.
The present invention makes in view of the above problems, and its object is to provides a kind of conduit system that can obtain good test waveform.
1st conduit system of the present invention possesses: ablation catheter, has electrode and temperature sensor near front end; Supply unit, electric power supply when this ablation catheter is melted; Waveform display apparatus, display uses the test waveform signal of determination of electrode; Repeater, be supplied to supply unit by the temperature measurement signal relaying exported from temperature sensor, and the test waveform signal relay exported from electrode is supplied to Waveform display apparatus; And path interruption switch, to be arranged on the outgoing route of temperature measurement signal, and the mode can interdicting this outgoing route is formed.
In the 1st conduit system of the present invention, on the outgoing route of the temperature measurement signal exported from the temperature sensor of ablation catheter, be provided with the path interruption switch that can interdict this outgoing route.Therefore, from the noise signal of circuit (such as amplifier etc.) of outgoing route being connected to temperature measurement signal, can be interdicted on the outgoing route of this temperature measurement signal.That is, the occurring source of noise signal is cut off.Consequently: such as in repeater, can reduce or avoid noise signal to be overlapped in the risk of test waveform signal by the outgoing route of this temperature measurement signal.
In the 1st conduit system of the present invention, preferably by above-mentioned path interruption switch-linear hybrid in repeater.If formed like this, because the outgoing route of temperature measurement signal can be interdicted in repeater, noise signal is not easy more to test waveform signal overlap.In addition, in this case, more preferably: arrange in the repeaters and amplify the amplifier of temperature measurement signal, and than this amplifier closer to configuration path blocking switch on the outgoing route of ablation catheter side.If formed like this, in repeater, just can relatively on hand side (ablation catheter side) interdict outgoing route.Therefore, the antenna effect of this outgoing route diminishes, and can suppress the generation of noise signal.
In the 1st conduit system of the present invention, preferably adopting can according to the above-mentioned on-state of path interruption switch of the operating and setting of operator or the structure of off-state.If formed like this, such as, according to the use inspection of ablation catheter, the situation etc. for the treatment of, on the opportunity that operator wishes, the blocking of outgoing route can be carried out.Therefore, convenience when such inspection, treatment is improved.
In the 1st conduit system of the present invention, above-mentioned supply unit also can export for linking with the operating state of self, and path interruption switch is automatically made the control signal of on-state or off-state.If formed like this, because can link with the operating state of supply unit, and controllability path interdicts the on-off state of switch automatically, so operator there is no need to operate at every turn, convenience is improved.In addition, in this case, above-mentioned supply unit is preferred: export control signal when the supply of implementation electric power and make path interruption switch be set as on-state, and output control signal makes path interruption switch be set to off-state when stopping electric power supply.If formed like this, when being necessary to be carried out by the electric power supply of temperature sensor measurement temperature (when melting), path interruption switch is set to on-state, and temperature survey is guaranteed (temperature measurement signal is output to supply unit).On the other hand, when not necessarily needing such thermometric electric power supply to stop (when such as checking), while make path interruption switch be set to off-state and temperature survey stopping, the high-precision inspection utilizing the good test waveform reducing or avoid noise signal overlap can be implemented.
2nd conduit system of the present invention possesses: ablation catheter, has electrode and temperature sensor near front end; Supply unit, electric power supply when this ablation catheter is melted; Waveform display apparatus, display uses the test waveform signal of determination of electrode; And repeater, the temperature measurement signal relaying exported from temperature sensor is supplied to supply unit, and the test waveform signal relay exported from electrode is supplied to Waveform display apparatus.This repeater has: amplifier, amplifies temperature measurement signal; And power supply blocking mechanism, the power supply of blocking amplifier.
In the 2nd conduit system of the present invention, amplify the power supply of the amplifier of the temperature measurement signal exported from the temperature sensor of ablation catheter, mechanism can be interdicted by power supply and interdict.Therefore, the generation of the noise signal from this amplifier can be prevented.Consequently: such as in repeater, can reduce or avoid noise signal to be overlapped in the risk of test waveform signal by the outgoing route of this temperature measurement signal.
In the 2nd conduit system of the present invention, above-mentioned power supply blocking mechanism is preferred: the operation signal inputted according to the operation according to operator interdicts the power supply of amplifier.If formed like this, such as, according to the use inspection of ablation catheter, the situation etc. for the treatment of, on the opportunity that operator wishes, the blocking of APS amplifier power supply can be carried out.Therefore, convenience when such inspection, treatment is improved.
In the 2nd conduit system of the present invention, above-mentioned supply unit also can export for linking with the operating state of self, and the control signal of the action of automatic control power supply blocking mechanism.If formed like this, because can link with the operating state of supply unit, and the power supply of control amplifier interdicts action automatically, so operator there is no need to operate at every turn, convenience is improved.In addition, in this case, above-mentioned supply unit is preferred: export control signal when the supply of implementation electric power and the power supply of amplifier is kept, and output control signal makes the power supply of amplifier be interdicted when stopping electric power supply.If formed like this, when being necessary to supply implementation by the electric power of temperature sensor measurement temperature, the power supply of amplifier is kept (maintenance), and temperature survey is guaranteed.On the other hand, when not necessarily needing such thermometric electric power supply to stop, while make the power supply of amplifier interdict and temperature survey stopping, the high-precision inspection utilizing the good test waveform reducing or avoid noise signal overlap can be implemented.
According to the 1st conduit system of the present invention, because on the outgoing route of the temperature measurement signal exported from the temperature sensor of ablation catheter, be provided with the path interruption switch that can interdict this outgoing route, so can reduce or avoid noise signal to be overlapped in the risk of test waveform signal.Therefore, good test waveform can be obtained.
According to the 2nd conduit system of the present invention, because amplify the power supply of the amplifier of the temperature measurement signal exported from the temperature sensor of ablation catheter, mechanism can be interdicted by power supply to interdict, so can reduce or avoid noise signal to be overlapped in the risk of test waveform signal.Therefore, good test waveform can be obtained.
Accompanying drawing explanation
[Fig. 1] Fig. 1 is the block diagram of the unitary construction example of the conduit system schematically shown involved by the 1st embodiment of the present invention.
[Fig. 2] Fig. 2 is the schematic diagram of the detailed configuration example representing ablation catheter shown in Fig. 1.
[Fig. 3] Fig. 3 is the axonometric chart of the exterior structure example schematically showing repeater shown in Fig. 1.
[Fig. 4] Fig. 4 is the schematic diagram of the detailed configuration example representing repeater shown in Fig. 1.
[Fig. 5] Fig. 5 is the block diagram that the entirety of the conduit system schematically shown involved by comparative example 1 is formed.
[Fig. 6] Fig. 6 is the time waveform figure of an example of the test waveform signal represented involved by comparative example 1.
[Fig. 7] Fig. 7 is the time waveform figure of an example of the test waveform signal represented involved by comparative example 2.
[Fig. 8 A] Fig. 8 A is the schematic diagram of the effect for illustration of the switch of path interruption shown in Fig. 4.
[Fig. 8 B] Fig. 8 B is other schematic diagrams of the effect for illustration of the switch of path interruption shown in Fig. 4.
[Fig. 9] Fig. 9 is the time waveform figure of an example of the test waveform signal represented involved by the 1st embodiment.
[Figure 10] Figure 10 is the block diagram of the unitary construction example of the conduit system schematically shown involved by the 2nd embodiment.
[Figure 11] Figure 11 is the schematic diagram of the detailed configuration example representing repeater shown in Figure 10.
[Figure 12] Figure 12 is the flow chart of the action case representing conduit system shown in Figure 10.
[Figure 13 A] Figure 13 A is the schematic diagram of the effect for illustration of the switch of path interruption shown in Figure 11.
[Figure 13 B] Figure 13 B is other schematic diagrams of the effect for illustration of the switch of path interruption shown in Figure 11.
[Figure 14] Figure 14 is the block diagram of the unitary construction example of the conduit system schematically shown involved by the 3rd embodiment.
[Figure 15] Figure 15 is the block diagram of the effect for illustration of the blocking of power supply shown in Figure 14 mechanism.
[Figure 16] Figure 16 is the block diagram of the unitary construction example of the conduit system schematically shown involved by the 4th embodiment.
[Figure 17] Figure 17 is the flow chart of the action case representing conduit system shown in Figure 16.
[Figure 18] Figure 18 is the block diagram of the effect for illustration of the blocking of power supply shown in Figure 16 mechanism.
Detailed description of the invention
Embodiments of the present invention are described in detail referring to accompanying drawing.Further, explanation is undertaken by following order.
1. the 1st embodiment (example according to the state of the operating and setting path interruption switch of operator)
2. the 2nd embodiment (link with the action of supply unit and automatically controllability path interdicts the example of switch)
3. the 3rd embodiment (example according to the power supply of the operation blocking amplifier of operator)
4. the 4th embodiment (linking with the action of supply unit and the example of the blocking of control amplifier power supply automatically)
5. variation
< the 1st embodiment >
[structure]
Fig. 1 is the block diagram of the overall configuration example of the conduit system (conduit system 6) schematically shown involved by the 1st embodiment of the present invention.This conduit system 6 be check, treatment patient's (this example for patient 9) arrhythmia etc. time the system that uses, possess ablation catheter 1, electrocardiogram display device 2 (Waveform display apparatus), supply unit 3, to pole plate 4 and repeater 5.
(ablation catheter 1)
Ablation catheter 1 to melt in patient 9 body, to affected part for being inserted by blood vessel thus to check, treat the electrode catheter of arrhythmia etc.
Fig. 2 is the schematic diagram of the schematic configuration example of ablation catheter 1.This ablation catheter 1 have as catheter main body axle 11 (conduit axle) and be installed on the operating portion 12 of cardinal extremity of this axle 11.
Axle 11 is formed, in the shape that the axis direction (Z-direction) along himself extends by having flexible tubular structure (tube material).In addition, axle 11 has and to be formed with the what is called slender hole structure of 1 pore (lumen, through hole) in inside in the mode extended along the axis direction of himself or to be formed with the many pore structures of what is called of plural number (such as, 4) pore.Further, also can both arrange by the region of slender hole formation of structure in the inside of axle 11, arranged again by the region of many pores formation of structure.In such pore, not shown various fine rules (wire and behaviour's position etc.) insert with the state of mutual electric insulation respectively.
Near the front end P1 of axle 11, be provided with the mechanism (temperature survey mechanism) for measuring (around affected part) temperature near the P1 of this front end.Specifically, in the pore of axle 11 inside, be configured with the temperature sensor (such as, as an object lesson of such temperature sensor, thermocouple 113 described later is inserted in pore) as such temperature survey institution staff.Further, the temperature information near the front end P1 so measured is as temperature measurement signal St, as shown in Figure 1, be supplied to supply unit 3 from ablation catheter 1 via repeater 5.
This axle 11 is such as made up of synthetic resin such as polyolefin, polyamide, polyether-polyamide (polyetherpolyamide), polyurethane.In addition, the length of the axis direction of axle 11 is about 500 ~ 1200mm (such as 1170mm), and the external diameter (external diameter in X-Y cross section) of axle 11 is about 0.6 ~ 3mm (such as 2.0mm).
Near the front end P1 of axle 11, as shown in the enlarged drawing near the front end P1 in Fig. 2, be provided with multiple electrode.Specifically, near the P1 of front end, ring electrode 111a, 111b, 111c and front termination electrode 112 configure with predetermined space with this order towards the side foremost of axle 11.In addition, ring electrode 111a, 111b, 111c are by fixed configurations is on the outer peripheral face of axle 11 respectively, and on the other hand, front termination electrode 112 is fixed and is configured at axle 11 foremost.These electrodes, by being inserted in the multiple conducting wires (not shown) in the pore of above-mentioned axle 11, are electrically connected with operating portion 12.Further, these wires form the holding wire of test waveform signal Sw described later.
Such ring electrode 111a, 111b, 111c and front termination electrode 112 are such as made up of the metal material that aluminum (Al), copper (Cu), rustless steel (SUS), the gold electric conductivity such as (Au), platinum (Pt) are good respectively.Further, good to the developability of X-ray in order to make when using ablation catheter 1, above-mentioned electrode is preferably made up of platinum or its alloy.In addition, there is no particular limitation for the external diameter of these ring electrodes 111a, 111b, 111c and front termination electrode 112, but preferably about equal with the external diameter of above-mentioned axle 11.
Operating portion 12 is installed on the cardinal extremity of axle 11, has handle 121 (handle portion) and swivel plate 122.
Handle 121 is the parts being caught (holding) when using ablation catheter 1 by operator (doctor).In the inside of this handle 121, have and extend and next above-mentioned various fine rule from axle 11 inside.
Swivel plate 122 carries out making the deflection of deflection near the front end of axle 11 move the parts of operation (swinging operation).Specifically, herein as denoted by the arrows in fig. 2, operation swivel plate 122 being rotated along direction of rotation d1 can be carried out.
(electrocardiogram display device 2)
Electrocardiogram display device 2 shows test waveform signal Sw (in this instance, for electrocardiographic wave etc.) device, this test waveform signal Sw by use above-mentioned ablation catheter 1 front end P1 near electrode (ring electrode 111a, 111b, 111c and front termination electrode 112) carry out mensuration gained.In other words, electrocardiogram display device 2 is the such test waveform signal Sw of display and the watch-dog (Monitor) externally exported, and is referred to as so-called polygraph.Further, this test waveform signal Sw as shown in Figure 1, be supplied to electrocardiogram display device 2 from ablation catheter 1 via repeater 5.
(supply unit 3)
Supply unit 3 be to ablation catheter 1 and to pole plate 4 supply melt time electric power (such as by high frequency (RF; Radio Frequency) the output power Pout that forms) device (high frequency generating apparatus).Further, output power Pout as shown in Figure 1, be supplied to ablation catheter 1 respectively via repeater 5 and to pole plate 4 from supply unit 3.This supply unit 3 as shown in Figure 1, has input part 31, power supply unit 32, voltage measurement portion 33, current measurement portion 34, control part 35 and display part 36.
Input part 31 is parts of the index signal for inputting various setting value and indicating predetermined action.As various setting value, include, for example: setting electric power Ps (maximum power of=output power Pout), threshold value electric power, target temperature Tt, various stand-by times etc.These setting values are inputted by the operator (such as technician etc.) of supply unit 3.But such as threshold value electric power also can can't help operator's input, and is set in supply unit 3 in advance when product turnout etc.In addition, the setting value inputted by input part 31, index signal are supplied to control part 35 respectively.This input part 31 such as can by predetermined rotating disk and the formation such as button, touch panel.
Power supply unit 32 is according to control signal CTLp described later, to ablation catheter 1 and the part of pole plate 4 being supplied to above-mentioned output power Pout.This power supply unit 32 uses predetermined power circuit (such as switch voltage-stabilizing circuit etc.) to form.Further, when output power Pout is made up of RF power, this frequency is such as about 450kHz ~ 550kHz (such as 500kHz).
Voltage measurement portion 33 is the parts of the voltage measuring the output power Pout that (detection) is exported by power supply unit 32 at any time, uses predetermined voltage detecting circuit to form.The voltage (actual measurement voltage Vm) so recorded by voltage measurement portion 33 is output to control part 35.
Current measurement portion 34 is the parts of the electric current measuring the output power Pout exported by power supply unit 32 at any time, uses predetermined current detection circuit to form.The electric current (measured current Im) so recorded by current measurement portion 34 is output to control part 35.
Control part 35 is the parts controlling whole supply unit 3 and carry out predetermined calculation process, such as, use the formations such as microcomputer.Specifically, first control part 35 has the function calculating the following actual measurement electric power Pm (being equivalent to the power value of output power Pout) illustrated.In addition, control part 35 has the function (electric power supply controlling functions) utilizing control signal CTLp to control the supply action of the output power Pout of power supply unit 32.
First, the computing function of surveying electric power Pm is as described below.That is, control part 35 calculates actual measurement electric power Pm at any time according to the actual measurement voltage Vm exported by voltage measurement the portion 33 and measured current Im that exported by current measurement portion 34.Specifically, control part 35 utilizes following formula (1) to calculate actual measurement electric power Pm.The actual measurement electric power Pm so calculated by control part 35 is such as output to display part 36.
Pm＝(Vm×Im)......(1)
Next, above-mentioned electric power supply controlling functions is as described below.That is, control part 35 is by producing control signal CTLp according to aforementioned temperature measuring-signal St (temperature information near the P1 of front end), and export this control signal CTLp to power supply unit 32, regulate the size of (fine adjustment) output power Pout.Specifically, temperature measurement signal St is made (strictly by the size of regulation output electric power Pout, for aftermentioned signal amplify after temperature measurement signal St ') represented by axle 11 front end P1 near temperature roughly remain necessarily (preferably certain), in other words, the target temperature Tt making this temperature approximate (preferably equaling) to preset.
In detail, when the temperature of control part 35 near the P1 of front end is lower than target temperature Tt, carries out control and output power Pout value is increased.On the other hand, when the temperature near the P1 of front end exceedes target temperature Tt, carry out control and output power Pout value is reduced.So suitably regulated based on the setting electric power Ps of input, actual output power Pout is provided.
Display part 36 is the various information of display and the part (watch-dog) exported outside.As the information of display object, include, for example: the aforementioned various setting value (setting electric power Ps etc.), the actual measurement electric power Pm supplied by control part 35 and the temperature information (temperature measurement signal St ') etc. supplied via repeater 5 from ablation catheter 1 that input from input part 31.But the information as display object is not limited to these information, also can replaces by other information or add other information.This display part 36 uses various display (such as liquid crystal display, CRT (Cathode Ray Tube) display and organic EL (Electro Luminescence) display etc.) to form.
(to pole plate 4)
As shown in Figure 1, to pole plate 4 be the body surface being installed on patient 9 when melting state under used.When melting, this is energized to high frequency between pole plate 4 and the electrode being inserted in the ablation catheter 1 in patient 9 body, hereinafter will describe in detail this.
(repeater 5)
As shown in Figure 1, repeater 5 be ablation catheter 1, electrocardiogram display device 2, supply unit 3 and to pole plate 4 between, the machine of the various signal of relaying, electric power.Specifically, the temperature measurement signal St relaying that repeater 5 will export from ablation catheter 1, and be supplied to supply unit 3 as temperature measurement signal St ' described later.In addition, the test waveform signal Sw relaying that repeater 5 will export from ablation catheter 1, and be supplied to electrocardiogram display device 2.Then, the output power Pout relaying that repeater 5 will export from supply unit 3, and be supplied to ablation catheter 1 respectively and to pole plate 4.
Fig. 3 is the axonometric chart of the exterior structure example schematically showing this repeater 5.Fig. 4 is the detailed configuration example of repeater 5 and the schematic diagram of a part for ablation catheter 1.
As shown in Figure 3, in this instance, in a side of the basket 50 of repeater 5,3 terminals 50a, 50b, 50c are arranged in parallel with respectively.In addition, in another side of this basket 50, be configured with 1 terminal 50d and path interruption switch 52 described later.Terminal 50a is connected with the distribution 60a for being exported to by output power Pout etc. pole plate 4.Terminal 50b is connected with for exporting to the ablation catheter 1 such as output power Pout and distribution 60b temperature measurement signal St and test waveform signal Sw etc. inputted from ablation catheter 1.Terminal 50c is connected with the distribution 60c for test waveform signal Sw etc. being exported to electrocardiogram display device 2.Terminal 50d is connected with for exporting to the supply unit 3 such as temperature measurement signal St ' and the distribution 60d inputted from supply unit 3 by output power Pout etc.
As shown in Fig. 1 and Fig. 4, in repeater 5 (basket 50), be provided with amplifier 51 and path interruption switch 52.
Amplifier 51 is amplified and the amplifier exported as temperature measurement signal St ' by temperature measurement signal St.Further, in repeater 5, other circuit (circuit of filter circuit etc.) also can be set except such amplifier 51 again.
As shown in Figure 4, path interruption switch 52 be configured between the thermocouple 113 of a concrete example of aforementioned temperature sensor and amplifier 51 path on (on the outgoing route of temperature measurement signal St).In other words, in this instance, path interruption switch 52 is configured in than on the outgoing route of amplifier 51 closer to ablation catheter 1 side (on hand side).Further, the symbol Pj shown in Fig. 4 represents the abutment of thermocouple 113.This path interruption switch 52 is as shown in the dotted arrow in Fig. 4, formed in the mode (connection status or notconnect state can be converted to by between the terminal on outgoing route) can interdicting the outgoing route of temperature measurement signal St, be there is mechanical construction of switch in this instance.In addition, in the present embodiment, as shown in the arrow P 2 in Fig. 1 and Fig. 4, can be formed according to the mode of the operating and setting of the operator of repeater 5 (technician etc.) (conversion) with the on-state of this path interruption switch 52 (above-mentioned connection status, conducting state) or off-state (above-mentioned notconnect state, blocking state).
[action effect]
(A. basic acts)
In this conduit system 6, when inspection, the treatment of arrhythmia etc., the axle 11 of ablation catheter 1 is inserted in the body of patient 9 by blood vessel.Now, according to the operation of operator to operating portion 12, the shape near the front end P1 being inserted in the axle 11 in body is partial to.Specifically, if rotate swivel plate 122 by the finger of operator along direction of rotation d1 as denoted by the arrows in fig. 2, the not shown behaviour's position so in axle 11 is pulled to base end side.Consequently: bend along direction d2 as illustrated by the arrows in fig. 1 near the front end P1 of axle 11.
At this, when the inspection such as arrhythmia etc., the electrode (ring electrode 111a, 111b, 111c, front termination electrode 112) of the ablation catheter 1 be inserted in body is used to measure heart potential.The information (test waveform signal Sw) of this heart potential is supplied to electrocardiogram display device 2 from ablation catheter 1 via repeater 5.Then, this test waveform signal Sw (electrocardiographic wave) is shown by electrocardiogram display device 2, carries out the inspection relevant with the presence or absence of the arrhythmia of check point etc. and degree thereof.
In addition, when the treatment of arrhythmia etc., supply the electric power (output power Pout) when melting by supply unit 3 (power supply unit 32) to ablation catheter 1 and to pole plate 4.Therefore, be installed on patient 9 body surface carry out high frequency energising between pole plate 4 and the above-mentioned electrode being inserted in the ablation catheter 1 in patient 9 body.By the energising of such high frequency, the position (disposal part) of the treatment target of patient 9 is optionally melted, and carries out the transdermal therapeutic of arrhythmia etc. thus.
(effect of B. path interruption switch 52)
Next, to the effect of the path interruption switch 52 of present embodiment, compare with comparative example (comparative example 1,2), be described in detail on one side.
(comparative example 1)
Fig. 5 is the block diagram that the entirety of the conduit system (conduit system 106) schematically shown involved by comparative example 1 is formed.The conduit system 106 of this comparative example 1 with repeater 105 is set in the conduit system 6 of present embodiment to replace the system of repeater 5 corresponding.
In this repeater 105, different from repeater 5, the outgoing route of temperature measurement signal St does not arrange path interruption switch 52.Therefore, in this comparative example 1, in repeater 105, the noise signal Sn (electromagnetic wave etc.) that circuit (amplifier 51 etc.) occurs has the risk being overlapped in test waveform signal Sw.Specifically, first, because the distribution of temperature measurement signal St (such as aforementioned hot galvanic couple 113) is connected to the circuit in repeater 105, the noise signal Sn so from this circuit must be overlapped in temperature measurement signal St.In addition, near the distribution of this temperature measurement signal St, be configured with the distribution of test waveform signal Sw.In other words, in such as aforesaid distribution 60b, each bar distribution parallel deployment of these temperature measurement signals St and test waveform signal Sw.Therefore, in repeater 105, for this test waveform signal Sw, also will have by the temperature measurement signal St risk (dotted arrow with reference in Fig. 5) overlapping with noise signal Sn.
Specifically, as the test waveform signal Sw101 such as shown in Fig. 6, in this comparative example 1, cause original test waveform (electrocardiographic wave) overlapping with the noise signal Sn of high frequency.If noise signal Sn is overlapped in test waveform by this way, so just there is the risk causing being difficult to obtain (display) good test waveform, measuring accuracy reduces in electrocardiogram display device 2.
Further, because such as following reason, the distribution of near the distribution of the temperature measurement signal St configuration testing waveshape signal Sw of having to.That is, because the diameter of the axle 11 of ablation catheter 1 is little as far as possible, so be difficult to make physically and electrically to isolate (implementing noise countermeasure) between the distribution of temperature measurement signal St (thermocouple 113 etc.) and the distribution of test waveform signal Sw.
(comparative example 2)
Here, in order to remove overlapping noise signal Sn like this, such as, the method (as comparative example 2) that wave filter (such as, LPF (Low Pass Filter)) is set on the path of test waveform signal Sw can be considered.
But, as the test waveform signal Sw102 such as shown in Fig. 7, by the test waveform after wave filter, the rising of waveform and the inclination of decline slow down (with reference to the dotted arrow in Fig. 7, peak value reduces and waveform is mild), cause not easily observation test waveform.Therefore, the requirement that doctor wants to observe original test waveform (loyal reflection test waveform originally) can not just be met.Add, as shown in the symbol P102 in Fig. 7, by filter process, also have the risk causing the small-signal disappearance be present in test waveform originally.For all these reasons, even if be suitable for the method for this comparative example 2, result also has the risk causing measuring accuracy to decline.
(present embodiment)
To this, in the conduit system 6 of present embodiment, as shown in Fig. 1, Fig. 3, Fig. 4, on the outgoing route of the temperature measurement signal St exported from the temperature sensor (thermocouple 113 etc.) of ablation catheter 1, be provided with the path interruption switch 52 that can interdict this outgoing route St.
Specifically, as shown in Figure 8 A, when this path interruption switch 52 is set to on-state, the outgoing route of temperature measurement signal St becomes conducting state, and this temperature measurement signal St is provided to amplifier 51.That is, become and carry out thermometric state, the temperature measurement signal St ' after signal amplifies is provided to the control part 35 in supply unit 3.
On the other hand, as shown in Figure 8 B, when path interruption switch 52 is set to off-state, the outgoing route of temperature measurement signal St becomes blocking state, and temperature measurement signal St can not be supplied to amplifier 51.That is, become and stop thermometric state, the temperature measurement signal St ' after signal amplifies can not be supplied to the control part 35 in supply unit 3.
By arranging this path interruption switch 52, from the noise signal Sn of circuit (amplifier 51 etc.) of outgoing route being connected to temperature measurement signal St, can be interdicted on the outgoing route of this temperature measurement signal St.That is, the occurring source of noise signal Sn (foregoing circuit) can be cut off from the outgoing route of temperature measurement signal St.
Consequently: as the test waveform signal Sw such as shown in Fig. 9, different from above-mentioned comparative example 1 in the present embodiment, in repeater 5, can reduce or avoid noise signal Sn to be overlapped in the risk of test waveform signal Sw by the outgoing route of temperature measurement signal St.In addition, different from above-mentioned comparative example 2, do not cause test waveform to flatten slow yet and not easily observe, risk that small-signal disappears.
As mentioned above in the present embodiment, because on the outgoing route of the temperature measurement signal St exported from the temperature sensor of ablation catheter 1, be provided with the path interruption switch 52 that can interdict this outgoing route, so can reduce or avoid noise signal Sn to be overlapped in the risk of test waveform signal Sw.Therefore, it is possible to obtain good test waveform, measuring accuracy can be improved.
In addition, because be provided with this path interruption switch 52 in repeater 5, so the outgoing route of temperature measurement signal St can be interdicted in repeater 5.Thus, the occurring source of noise signal Sn is defined to from ablation catheter 1 to the path of repeater 5.Therefore, it is possible to it is overlapping to make noise signal Sn more be not easy test waveform signal Sw.
Furtherly, because be provided with the amplifier 51 amplifying temperature measurement signal St in repeater 5, and being configured with path interruption switch 52 than on the outgoing route of this amplifier 51 closer to ablation catheter 1 side, so in repeater 5, just can relatively on hand side blocking outgoing route.Therefore, the antenna effect of the outgoing route of this temperature measurement signal St diminishes, and also can suppress the generation of noise signal.
Add, can according to the on-state of operating and setting path interruption switch 52 of the operator of repeater 5 or the structure of off-state because have employed, so such as can according to the situation etc. checked, treat, on the opportunity that operator wishes, carry out the blocking of the outgoing route of temperature measurement signal St.Therefore, convenience when such inspection, treatment can be improved.
Below, other embodiments of the present invention (the 2nd ~ 4th embodiment) are described.Further, give identical symbol to the parts identical with the element in the 1st embodiment etc., and suitably the description thereof will be omitted.
< the 2nd embodiment >
[structure]
Figure 10 is the block diagram of the overall configuration example of the conduit system (conduit system 6A) schematically shown involved by the 2nd embodiment.The conduit system 6A of present embodiment with repeater 5A is set in the conduit system 6 of the 1st embodiment to replace the system of repeater 5 corresponding, other formations are substantially identical.
Figure 11 is the detailed configuration example of this repeater 5A and the schematic diagram of a part for ablation catheter 1.
As shown in Figures 10 and 11, repeater 5A adopts following structure: in repeater 5, make the control signal CTL1 supplied by the control part 35 in supply unit 3 be input to path interruption switch 52.In other words, become following structure: relative to the state of operating and setting (manually setting) the path interruption switch 52 according to operator in repeater 5, and according to the state of the control signal CTL1 supplied by control part 35 automatic controllability path blocking switch 52 in repeater 5A.
Specifically, the control part 35 of present embodiment links with the operating state (melting with or without implementation) of supply unit 3 as detailed below, exports the control signal CTL1 (dotted arrow with reference in Figure 11) being used for this path interruption switch 52 being automatically made on-state or off-state.
[action effect]
Figure 12 is the flow chart of the action case representing conduit system 6A.In this conduit system 6A, first, setting electric power Ps when being melted input part 31 input by the operator of supply unit 3 and the value of target temperature Tt, so these numerical value are provided to control part 35, carry out the setting (step S101) of numerical value thus.
Then, control part 35 will judge whether operator sets to input part 31 beginning (step S102) that (instruction) melts (high frequency output).In other words, have input index signal for making high frequency output (supply of output power Pout) start by judging whether by input part 31 pairs of control parts 35.
(when melting)
Now, if indicate the beginning (step S102:Y) of high frequency output, output control signal CTL1 is set to on-state (step S103) to make path interruption switch 52 by control part 35.
Thus, as shown in FIG. 13A, path interruption switch 52 becomes on-state (step S104).Therefore, the outgoing route of temperature measurement signal St becomes conducting state, and this temperature measurement signal St is supplied to amplifier 51.That is, temperature survey is guaranteed and becomes thermometric state of carrying out, and the temperature measurement signal St ' after signal amplifies is supplied to the control part 35 in supply unit 3.Like this, when the supply of the output power Pout being necessary measuring tempeature stops (when melting), path interruption switch 52 is set to on-state, thus temperature survey is guaranteed.
Next, in display part 36, so according to the temperature measurement signal St ' being supplied to control part 35, start Temperature displaying (step S105).Then, according to the start instruction of the high frequency output inputted in step s 102, start by power supply unit 32 respectively to ablation catheter 1 and the supply (step S106) to the output power Pout of pole plate 4.Therefore due to aforesaid principle, melting of disposal part is started.
Then, control part 35 will judge that whether operator indicates the stopping (step S107) of high frequency output (melting) to input part 31.In other words, have input index signal for making the supply of output power Pout stop by judging whether by input part 31 pairs of control parts 35.Now, if do not indicate the stopping (step S107:N) of high frequency output, the action that so control part 35 controls power supply unit 32 makes the supply of output power Pout continue, till having such stopping instruction.Further, in this step 107, also can after a predetermined time after (or setting-up time input part 31 inputted by operator), the stopping (so-called timer driving) making control part 35 automatically judge to melt.
On the other hand, if indicate the stopping (step S107:Y) of high frequency output, so in control part 35, by the action controlling power supply unit 32, the supply of output power Pout is stopped, thus stop high frequency output (step S108).That is, melting of processing section is stopped.Further, after this, be transformed into the step S109 of following explanation.
(time beyond melting)
Now, if do not indicate the beginning (step S102:N) of high frequency output in step s 102, or have passed through above-mentioned steps S108, control part 35 will carry out following action.That is, output control signal CTL1 is set to off-state (step S109) to make path interruption switch 52 by control part 35.
Thus, as shown in Figure 13 B, path interruption switch 52 becomes off-state (step S110).Therefore, the outgoing route of temperature measurement signal St becomes blocking state, and this temperature measurement signal St can not be supplied to amplifier 51.That is, temperature survey becomes halted state, and the temperature measurement signal St ' after signal amplifies can not be supplied to the control part 35 in supply unit 3.Consequently: in display part 36, the Temperature displaying (step S111) that (or stopping) basis is supplied to the temperature measurement signal St ' of control part 35 can not be carried out.Further, after this, be again transformed into step S102.
Formation like this, when not necessarily needing the supply of thermometric output power Pout to stop (when such as resembling inspection, melt beyond during), as described below.That is, can while make path interruption switch 52 be set as off-state and temperature survey stopping, in a same manner as in the first embodiment, implement utilize minimizing or avoid the high-precision inspection of noise signal Sn to the good test waveform of the overlap of test waveform signal Sw.
In above-mentioned present embodiment, because control part 35 links with the operating state of supply unit 3, output the control signal CTL1 for path interruption switch 52 being automatically made on-state or off-state, so except effect substantially in a same manner as in the first embodiment, following effect can also be obtained.That is, because can link with the operating state of supply unit 3, and controllability path interdicts the on-off state of switch 52 automatically, so different from the 1st embodiment, the operator of repeater 5 there is no need to operate at every turn, and convenience can be made to be improved.
In addition, because set path blocking switch 52 is on-state when carrying out the supply of output power Pout, and set path blocking switch 52 is off state when stopping the supply of output power Pout, so as mentioned above, the suitable system acting of the operating state based on supply unit 3 can be ensured.
< the 3rd embodiment >
[structure]
Figure 14 is the block diagram of the unitary construction example of the conduit system (conduit system 7) schematically shown involved by the 3rd embodiment.The conduit system 7 of present embodiment with repeater 5B is set in the conduit system 6 of the 1st embodiment to replace the system of repeater 5 corresponding, other formations are substantially identical.
Repeater 5B with power supply be set in repeater 5 interdict mechanism 53 to replace the repeater of path interruption switch 52 corresponding.This power supply blocking mechanism 53 has the structure of the power supply that can interdict amplifier 51, such as, uses the switch (amplifier power supply interdicts switch) that can interdict the electric power (supply of electric power line) being supplied to amplifier 51 to form.Further, this amplifier power supply blocking switch such as has mechanical construction of switch.
In addition, in the present embodiment, as shown in the arrow P 3 in Figure 14, with the operation signal that can input according to the operation of the operator according to repeater 5B, the implementation state (the blocking state of the power supply of amplifier 51) of action or the mode of halted state (hold mode of the power supply of amplifier 51) that set (conversion) power supply blocking mechanism 53 are formed.In other words, power supply blocking mechanism 53, according to such operation signal, carries out the blocking action of the power supply of amplifier 51.
[action effect]
By being provided with such power supply blocking mechanism 53, in the present embodiment as shown in figure 15, the power supply of amplifier 51 can be interdicted.In other words, the generation of the noise signal Sn from this amplifier 51 can be prevented.Consequently: in repeater 5B, the risk that noise signal Sn is overlapped in test waveform signal Sw by the outgoing route of temperature measurement signal St can be reduced or avoid.
As mentioned above in the present embodiment, because the power supply that the amplifier 51 amplifying temperature measurement signal St is interdicted in mechanism 53 can be interdicted, so can reduce or avoid noise signal Sn to be overlapped in the risk of test waveform signal Sw by power supply.Therefore, also can obtain good test waveform in the present embodiment, can measuring accuracy be improved.
In addition, because the power supply of amplifier 51 has been interdicted in power supply blocking mechanism 53 according to the operation signal that the operation of the operator according to repeater 5B inputs, so such as according to the situation etc. checked, treat, on the opportunity that operator wishes, the blocking of the power supply of amplifier 51 can be carried out.Therefore, convenience when such inspection, treatment can be improved.
< the 4th embodiment >
[structure]
Figure 16 is the block diagram of the unitary construction example of the conduit system (conduit system 7A) schematically shown involved by the 4th embodiment.The conduit system 7A of present embodiment with repeater 5C is set in the conduit system 7 of the 3rd embodiment to replace the system of repeater 5B corresponding, other formations are substantially identical.
Repeater 5C adopts following structure: in repeater 5B, makes the control signal CTL2 supplied by the control part 35 in supply unit 3 be input to power supply blocking mechanism 53.In other words, in repeater 5B, control according to the operation signal that the operation according to operator inputs the action that (Non-follow control) power supply interdicts mechanism 53.To this, in repeater 5C, become following structure: according to the action of the control signal CTL2 automatic control power supply blocking mechanism 53 supplied by control part 35.
Specifically, the control part 35 of present embodiment links with the operating state of supply unit 3 as detailed below, exports the control signal CTL2 being used for the action automatically controlling this power supply blocking mechanism 53.
[action effect]
Figure 17 is the flow chart of the action case representing conduit system 7A.Action case shown in this Figure 17 is with in the action case of the conduit system 6A shown in aforementioned Figure 12, carry out respectively following step S203, S204, S209, S210 illustrated replace step S103, S104, S109, S110 action case corresponding, other steps are identical.Therefore, below, mainly step S203, S204, S209, S210 are described.
(when melting)
In this conduit system 7A, if indicate the beginning (step S102:Y) of high frequency output in step s 102, control part 35 will carry out following action.That is, control part 35 will export control signal CTL2 (step S203) to keep the power supply of (do not carry out the power supply undertaken by power supply blocking mechanism 53 and interdict action) amplifier 51.
Thus, the power supply of amplifier 51 is kept (step S204).That is, temperature survey is guaranteed and becomes thermometric state of carrying out, and the temperature measurement signal St ' after signal amplifies is supplied to the control part 35 in supply unit 3.Like this, when the supply of the output power Pout being necessary measuring tempeature stops (when melting), the power supply of amplifier 51 is kept (maintenance), thus temperature survey is guaranteed.
(time beyond melting)
On the other hand, if do not indicate the beginning (step S102:N) of high frequency output in step s 102, or have passed through abovementioned steps S108, control part 35 will carry out following action.That is, control part 35 will export control signal CTL2 (step S209) to interdict the power supply of (carry out the power supply undertaken by power supply blocking mechanism 53 and interdict action) amplifier 51.
Thus, as shown in figure 18, the power supply of amplifier 51 is interdicted (step S210).That is, temperature survey becomes halted state, and the temperature measurement signal St ' after signal amplifies can not be supplied to the control part 35 in supply unit 3.
Formation like this, when not necessarily needing the supply of thermometric output power Pout to stop (when such as resembling inspection, melt beyond during), as described below.That is, can while make the power supply of amplifier 51 be interdicted and temperature survey stops, in a same manner as in the third embodiment, implement utilize minimizing or avoid the high-precision inspection of noise signal Sn to the good test waveform of the overlap of test waveform signal Sw.
In above-mentioned present embodiment, because control part 35 links with the operating state of supply unit 3, output the control signal CTL2 of the action for automatic control power supply blocking mechanism 53, so except effect substantially in a same manner as in the third embodiment, following effect can also be obtained.That is, because can link with the operating state of supply unit 3, and the power supply of control amplifier 51 interdicts action automatically, so different from the 3rd embodiment, the operator of repeater 5C there is no need to operate at every turn, and convenience can be made to be improved.
In addition, because the power supply of hold amplifier 51 when carrying out the supply of output power Pout, and the power supply of blocking amplifier 51, so as mentioned above, can ensure the suitable system acting of the operating state based on supply unit 3 when stopping the supply of output power Pout.
< variation >
Although describe the present invention above by enumerating several embodiment, the present invention is not limited to these embodiments, can carry out various amendment.
Such as, the material of each parts illustrated in the above-described embodiment etc. do not limit, and also can use other materials.In addition, in the above-described embodiment, although specifically enumerate the formation of ablation catheter 1 and be illustrated, might not need that there are whole parts, also can have miscellaneous part further in addition.Specifically, such as, in the inside of axle 11, as tilting member, the leaf spring that can be out of shape on bending direction also can be set.In addition, the formation (configuration, shape, quantity etc. of ring electrode and front termination electrode) of the electrode on axle 11 is not limited to the example in above-mentioned embodiment.Furtherly, as the temperature survey mechanism (temperature sensor) near the front end P1 being configured in ablation catheter 1, be not limited to the thermocouple 113 illustrated in the above-described embodiment, also can use other temperature sensors such as such as thermal resistor.
In addition, in the above-described embodiment, although the ablation catheter type that can change in one direction according to the operation of operating portion 12 of the shape near the front end P1 enumerating axle 11 being illustrated, this is not limited to.That is, the present invention can the Application Example ablation catheter type that can change in both directions according to the operation of operating portion 12 as the shape near the front end P1 of axle 11, and many now will be used to grasp positions.In addition, the ablation catheter type that the shape near the front end P1 that the present invention also can be suitable for axle 11 is fixed, does not now need to grasp position, swivel plate 122 etc.That is, handle 121 is only had to form operating portion.
Furtherly, in the above-described embodiment, although be illustrated the situation that amplifier 51, path interruption switch 52 or power supply blocking mechanism 53 is all arranged in repeater, but be not limited to this, also can place beyond the repeater in conduit system, path interruption switch 52, power supply blocking mechanism 53 are set.That is, also such as in supply unit 3, amplifier 51, path interruption switch 52 or power supply blocking mechanism 53 can be set.That situation is also same with above-mentioned embodiment, is preferably interdicting switch 52 than amplifier 51 closer to configuration path on the outgoing route of ablation catheter 1 side.In addition, in some cases, as whole conduit system, two sides of path interruption switch 52 and power supply blocking mechanism 53 also can be set.
Further, in the above-described embodiment, although the square frame specifically enumerating supply unit 3 forms and is illustrated, might not need that there is all parts square frame illustrated by whole above-mentioned embodiment, also can have miscellaneous part square frame further in addition.In addition, as whole conduit system, except each device illustrated by above-mentioned embodiment, also can have other devices further.Specifically, such as, the conduit system possessing the filling mechanism of the liquid such as saline injection when carrying out the melting of affected part can also be adopted.In this case, be arranged on to the liquid supply unit of ablation catheter supply perfusion liquid in special device (fluid Supplying apparatus) or in supply unit (control device).In addition, liquid supply line between this liquid supply unit of connection (fluid Supplying apparatus or control device) and ablation catheter also can be made via the repeater illustrated in the above-described embodiment.
Claims (10)
1. a conduit system, wherein, possesses:
Ablation catheter, has electrode and temperature sensor near front end;
Supply unit, electric power supply when described ablation catheter is melted;
Waveform display apparatus, display uses the test waveform signal of described determination of electrode;
Repeater, be supplied to described supply unit by the temperature measurement signal relaying exported from described temperature sensor, and the described test waveform signal relay exported from described electrode is supplied to described Waveform display apparatus; And
Path interruption switch, to be arranged on the outgoing route of described temperature measurement signal, and the mode can interdicting this outgoing route is formed.
2. conduit system according to claim 1, wherein, described path interruption switch-linear hybrid is in described repeater.
3. conduit system according to claim 2, wherein,
Described repeater has the amplifier amplifying described temperature measurement signal,
Described path interruption switch is configured in than on the described outgoing route of described amplifier closer to described ablation catheter side.
4. the conduit system described in any one in claims 1 to 3, wherein, is formed in the mode that the on-state of described path interruption switch or off-state can set according to the operation of operator.
5. the conduit system described in any one in claims 1 to 3, wherein, described supply unit exports and is used for linking with the operating state of self, and described path interruption switch is automatically made the control signal of on-state or off-state.
6. conduit system according to claim 5, wherein,
Described supply unit, when carrying out the supply of described electric power, exports described control signal and makes described path interruption switch be set to on-state, and
Described supply unit, when stopping the supply of described electric power, exports described control signal and makes described path interruption switch be set to off-state.
7. a conduit system, wherein, possesses:
Ablation catheter, has electrode and temperature sensor near front end;
Supply unit, electric power supply when described ablation catheter is melted;
Waveform display apparatus, display uses the test waveform signal of described determination of electrode; And
Repeater, be supplied to described supply unit by the temperature measurement signal relaying exported from described temperature sensor, and the described test waveform signal relay exported from described electrode is supplied to described Waveform display apparatus,
Described repeater has:
Amplifier, amplifies described temperature measurement signal; And
Power supply blocking mechanism, interdicts the power supply of described amplifier.
8. conduit system according to claim 7, wherein, the power supply of described amplifier is interdicted in described power supply blocking mechanism according to the operation signal that the operation according to operator inputs.
9. conduit system according to claim 7, wherein, described supply unit exports and is used for linking with the operating state of self, and automatically controls the control signal of the action of described power supply blocking mechanism.
10. conduit system according to claim 9, wherein,
Described supply unit, when carrying out the supply of described electric power, exports described control signal and the power supply of described amplifier is kept, and
Described supply unit, when stopping the supply of described electric power, exports described control signal and the power supply of described amplifier is interdicted.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-135474 | 2013-06-27 | ||
| JP2013135474A JP5641591B1 (en) | 2013-06-27 | 2013-06-27 | Catheter system |
| PCT/JP2014/058885 WO2014208159A1 (en) | 2013-06-27 | 2014-03-27 | Catheter system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104981217A true CN104981217A (en) | 2015-10-14 |
| CN104981217B CN104981217B (en) | 2017-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480006855.3A Active CN104981217B (en) | 2013-06-27 | 2014-03-27 | Conduit system |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5641591B1 (en) |
| KR (1) | KR101690451B1 (en) |
| CN (1) | CN104981217B (en) |
| WO (1) | WO2014208159A1 (en) |
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| CN107583171A (en) * | 2016-07-08 | 2018-01-16 | 四川锦江电子科技有限公司 | Mapping catheter and there is its mapping catheter component |
| CN110944590A (en) * | 2017-08-29 | 2020-03-31 | 日本来富恩株式会社 | Ablation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2022211010A1 (en) * | 2021-03-31 | 2022-10-06 |
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| CN110944590A (en) * | 2017-08-29 | 2020-03-31 | 日本来富恩株式会社 | Ablation system |
| CN110944590B (en) * | 2017-08-29 | 2023-01-31 | 日本来富恩株式会社 | Ablation system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5641591B1 (en) | 2014-12-17 |
| KR101690451B1 (en) | 2016-12-27 |
| KR20160013946A (en) | 2016-02-05 |
| CN104981217B (en) | 2017-10-13 |
| WO2014208159A1 (en) | 2014-12-31 |
| JP2015008829A (en) | 2015-01-19 |
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