CN102379686A - Limited channel control circuit for minimally invasive intervention intraductal multi-channel electrical signals - Google Patents
Limited channel control circuit for minimally invasive intervention intraductal multi-channel electrical signals Download PDFInfo
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- CN102379686A CN102379686A CN2011102437828A CN201110243782A CN102379686A CN 102379686 A CN102379686 A CN 102379686A CN 2011102437828 A CN2011102437828 A CN 2011102437828A CN 201110243782 A CN201110243782 A CN 201110243782A CN 102379686 A CN102379686 A CN 102379686A
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Abstract
The invention relates to a limited channel control circuit for minimally invasive intervention intraductal multi-channel electrical signals, which is used for the medical field of minimally invasive intervention and comprises a control unit, a power cord, a ground wire and a communication wire. The power cord, the ground wire and the communication wire are respectively connected with a miniature chip in the control unit, the control unit further comprises a set of drivers connected in parallel, one end of each driver is connected with the power cord, and the other end of each driver is connected with the miniature chip. The limited channel control circuit has the advantages that number of wires needed by the far-end multi-driver and multi-sensing function for a duct can be reduced greatly, miniature of the duct is benefited, sufficient degree of freedom is supplied for completing complex intervention operations, data channels are supplied for surgical safety and acquisition of multiple physiological parameters in blood vessel and blood environment, and technical support is provided for functions of electrode ablation and the like requiring voltage induced into a human body.
Description
Technical field
The present invention relates to the limited channel control circuit of multi-channel electric signal in a kind of Wicresoft interposing catheter, be used for Wicresoft interventional medicine field.
Background technology
Wicresoft's intervene operation is little with its wound, lose blood less and recover plurality of advantages such as fast is widely used in clinical in the world.Conduit is as its most basic instrument, and far-end still lacks degree of freedom flexibly, at the inside of human body operating difficulties.Therefore, having initiatively, the conduit of choice direction function becomes the focus that various countries pay close attention to.
The conduit of present clinical use only have the electrode ablation conduit within it portion steel wire cable be housed operate the selection of conduit travel direction as driver, but owing to adopt mechanical system to realize driving, further miniaturization.With marmem (SMA) and ion exchange polymer/metallic material (IPMC) is the intellectual material of representative, adopts the mode of electricity to realize driving, and aspect miniaturization, has significant advantage and good prospects for application.But in order to obtain sufficient degree of freedom, must carry out independent driving, increase and sharply increase along with degree of freedom with regard to the quantity that causes electric lead like this a plurality of drivers.But conduit has very strict restriction for small size, does not therefore allow number of conductors excessively to increase.In addition, in intervention procedure, the doctor need detect the intravital multiple signal of people; Such as temperature, pressure and flow etc.; These transducing signals are many to be transformed at distal end of catheter, spreads out of externally through electric lead with the form of the signal of telecommunication, has further increased the quantity of lead.For some particular functionality in Wicresoft's intervene operation; Have a plurality of marks such as the electrophysiologicalcatheter catheter far-end and survey electrode; And the electrode ablation distal end of catheter has a plurality of marks surveys and ablating electrode, need different voltages with different be introduced human body, the problem of also having brought number of conductors to increase.The number of conductors problem has become this product of Wicresoft's interposing catheter and has moved towards microminiaturization, multiple degrees of freedom and the significant obstacle of many sensing directions.
Summary of the invention
Bring electric lead quantity to increase severely in order to overcome Wicresoft's interposing catheter multiple degrees of freedom and many sensing functions; Thereby can't satisfy microminiaturized requirement; The present invention provides method and the device of introducing multi-channel electric signal in a kind of Wicresoft interposing catheter; Can use the electric lead of limited quantity to supply power, obtain the multichannel heat transfer agent and plurality of voltages is introduced human body as multiplex driver.
The present invention for realizing the technical scheme that above-mentioned purpose adopted is: the limited channel control circuit of multi-channel electric signal in a kind of Wicresoft interposing catheter; It is characterized in that; Comprise one group of control unit and power line, ground wire, the order wire introduced from the outside; Power line, ground wire, order wire respectively with control unit in microchip be connected, said control unit also comprises one group of driver that is connected in parallel; One end of said each driver connects power line, and the other end is connected with microchip.
Said microchip comprises a state machine and the metal-oxide-semiconductor identical with number of drives that finite state output is provided; The drain electrode of said metal-oxide-semiconductor connects one to one with said driver respectively, and source class is connected with said ground wire, and grid is connected with the outfan of said state machine respectively; The input of said state machine is connected with order wire, and power line and ground wire are that said state machine provides voltage.
Said order wire pin input has the packet that is made up of command header, chip address, on off state and order tail.
State machine in the said microchip is decoded to the sequence signal of order wire input, and the open and close of control metal-oxide-semiconductor is selected specific passage, and power supply is introduced or sensor signal is drawn.
The limited channel control circuit of multi-channel electric signal in a kind of Wicresoft interposing catheter; It is characterized in that; Comprise one group of control unit and power line, ground wire, the order wire introduced from the outside; Power line, ground wire, order wire respectively with control unit in microchip be connected, said control unit also comprises one group of driver that is connected in parallel; One end of said each driver connects ground wire, and the other end is connected with microchip.
Said microchip comprises that one provides the state machine of finite state output, metal-oxide-semiconductor, the power management module identical with number of drives; The drain electrode of said metal-oxide-semiconductor is connected with said power management module, and source class connects one to one with said driver respectively, and grid is connected with the outfan of said state machine respectively; The input of said state machine is connected with order wire, and power line and ground wire are that said state machine provides voltage; The voltage transitions that said power management module provides power line becomes the dissimilar voltage of multichannel to offer metal-oxide-semiconductor.
Said order wire pin input has the packet that is made up of command header, chip address, on off state and order tail.
State machine in the said microchip is decoded to the sequence signal of order wire input, and the open and close of control metal-oxide-semiconductor is selected specific passage, and power supply is introduced or sensor signal is drawn.
The limited channel control circuit of multi-channel electric signal in a kind of Wicresoft interposing catheter; It is characterized in that; Comprise one group of control unit and power line, ground wire, order wire and the data acquisition line introduced from the outside; Power line, ground wire, order wire and data acquisition line respectively with control unit in microchip be connected, said control unit also comprises one group of pick off; Each pick off is connected with microchip, by power line and ground wire voltage is provided.
Said microchip comprises a state machine and the metal-oxide-semiconductor identical with number of drives that finite state output is provided; The drain electrode of said metal-oxide-semiconductor connects one to one with said pick off respectively, and source class is connected with said data acquisition line, and grid is connected with the outfan of said state machine respectively; The input of said state machine is connected with order wire, and power line and ground wire are that said state machine provides voltage.
Said order wire pin input has the packet that is made up of command header, chip address, on off state and order tail.
State machine in the said microchip is decoded to the sequence signal of order wire input, and the open and close of control metal-oxide-semiconductor is selected specific passage, and power supply is introduced or sensor signal is drawn.
The limited channel control circuit of multi-channel electric signal in a kind of Wicresoft interposing catheter; It is characterized in that; Comprise one group of control unit and power line, ground wire, the order wire introduced from the outside; Power line, ground wire, order wire respectively with control unit in microchip be connected, said control unit also comprises one group of electrode; Said each electrode is connected on the microchip.
Said microchip comprises a state machine and the metal-oxide-semiconductor identical with number of drives that finite state output is provided; The drain electrode of said metal-oxide-semiconductor is connected with said power line, and source class connects one to one with said electrode respectively, and grid is connected with the outfan of said state machine respectively; The input of said state machine is connected with order wire, and power line and ground wire are that said state machine provides voltage.
Said order wire pin input has the packet that is made up of command header, chip address, on off state and order tail.
State machine in the said microchip is decoded to the sequence signal of order wire input, and the open and close of control metal-oxide-semiconductor is selected specific passage, and power supply is introduced or sensor signal is drawn.
The invention has the beneficial effects as follows; Can reduce many drivings of distal end of catheter and the desired number of conductors of many sensing functions significantly; Help the microminaturization of conduit; Thereby for accomplishing complicated intervene operation competent degree of freedom is provided,, also technical support is provided for electrode ablation and so on has the function of voltage introducing human body requirements for the collection of multiple physiological parameter in the safety of operation and blood vessel and the blood environment provides data channel.
Description of drawings
Fig. 1 is the schematic diagram of the embodiment of the invention 1;
Fig. 2 is a microchip cut-away view among Fig. 1;
Fig. 3 is the schematic diagram of the embodiment of the invention 2;
Fig. 4 is a microchip cut-away view among Fig. 3;
Fig. 5 is the schematic diagram of the embodiment of the invention 3;
Fig. 6 is a microchip cut-away view among Fig. 5;
Fig. 7 is the schematic diagram of the embodiment of the invention 4;
Fig. 8 is a microchip cut-away view among Fig. 7;
Fig. 9 is that the communication protocol of Vs end of the present invention constitutes sketch map.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed description.
Embodiment 1:
As shown in Figure 1, comprise power line Vcc, ground wire GND, order wire Vs, a M*N driver B and N microchip A of introducing from the outside.The end of the M of each row driver B links to each other with power line Vcc respectively, and the other end of N row driver B links to each other with each self-corresponding microchip A respectively, and N microchip A links to each other with external power cord Vcc, ground wire GND, order wire Vs respectively.
As shown in Figure 2, microchip A inside comprises a state machine E and a M metal-oxide-semiconductor S that finite state output is provided.State machine D provides voltage by external power cord Vcc and ground wire GND for it; The outfan of state machine D links to each other respectively with the grid of M metal-oxide-semiconductor S; The input of state machine D links to each other with order wire Vs.The drain electrode of metal-oxide-semiconductor S links to each other respectively with the M of every row driver B; The source electrode of metal-oxide-semiconductor S links to each other respectively with ground wire GND.State machine D decodes to the sequence signal of order wire Vs input, thereby controls opening or closure of M metal-oxide-semiconductor S, thereby realizes M driver B applied voltage.
Vcc is an external power cord, for the inside micro chip provides voltage, is the driver power supply simultaneously; GND is outside ground wire; Vs is an order wire, is responsible for selecting microchip A and transfer control instruction.Universal meaning, the quantity of driver B can be divided into the capable N row of M, and the driver B of each row connects a microchip A.The end of the M of each row driver B links to each other with external power source Vcc, and the other end is controlled break-make by a microchip A.
As shown in Figure 7, the inner communication of present embodiment distal end of catheter is controlled by order wire Vs pin input packet.Said packet is come to constitute successively by command header, chip address, on off state and order tail.Command header provides order indication, chip address to represent to order to microchip and acts on specific microchip, and on off state provides operational order for selected microchip, control inner metal-oxide-semiconductor S open or closed.
Embodiment 2:
As shown in Figure 3; Present embodiment comprises power line Vcc, ground wire GND, order wire Vs, a M*N driver B and N microchip of introducing from the outside; The end of the M of each row driver B links to each other with outside ground wire GND; The microchip A that the other end of N row driver B is corresponding with each respectively links to each other, and N microchip A links to each other with external power cord Vcc respectively, and whether each driver B links to each other with external power cord Vcc by microchip A control.
As shown in Figure 4, microchip A inside comprises state machine D, power management module E and a M metal-oxide-semiconductor S that finite state output is provided.Power management module E changes into the dissimilar voltage of multichannel with external power cord Vcc, offers M driver B.The drain electrode of M metal-oxide-semiconductor S is corresponding one by one continuous with M the voltage output end of power management module E; The source class of M metal-oxide-semiconductor S links to each other with the end of corresponding each driver B; The ground level of M metal-oxide-semiconductor S links to each other with state machine D.State machine D provides voltage by external power cord Vcc and ground wire GND for it.The input of state machine D links to each other with order wire Vs.By state machine D the sequence signal of order wire Vs end input is decoded, thus the opening or the voltage output situation of closure and power management module E of M metal-oxide-semiconductor S of control, thus realization applies voltage to M driver B.
Among Fig. 3 and Fig. 4: Vcc is an external power source, and A provides voltage for the inside micro chip, is driver B power supply simultaneously; GND is outside ground wire; Vs is an order wire, is responsible for selecting microchip A and transfer control instruction.The quantity of driver B is the capable N of M row in this example, need pack into the joint C of an integrated micro chip A of the driver B of each row.The inner communication of this routine distal end of catheter is controlled by order wire Vs pin input packet, and is identical with embodiment 1 structure.
Embodiment 3:
Like Fig. 5 and shown in Figure 6, this example comprises external power cord Vcc, ground wire GND, order wire Vs, data acquisition line Va, microchip and N pick off R.Said microchip A inside comprises state machine D and N metal-oxide-semiconductor S of a finite state output; State machine D input link to each other with order wire Vs; Its outfan links to each other with the grid of N metal-oxide-semiconductor S; The drain electrode of N metal-oxide-semiconductor S links to each other respectively with the outfan of N pick off R, and the source electrode of metal-oxide-semiconductor S links to each other with data acquisition line Va, and the transducing signal of distal end of catheter is sent to catheter proximal end.By state machine D the sequence signal of Vs end input is decoded, thus the selection of control multiple sensor R.
Wherein: Vcc is an external power source, for inside micro chip and pick off provide voltage, is the driver power supply simultaneously; GND is outside ground wire; Vs is an order wire, is responsible for selecting pick off; Va is the data acquisition line, is responsible for the transducing signal of distal end of catheter is sent to catheter proximal end.The inner communication of this routine distal end of catheter is controlled by order wire Vs pin input packet, and is identical with embodiment 1 structure.
Embodiment 4:
Like Fig. 7 and shown in Figure 8; Present embodiment comprises external power cord Vcc, ground wire GND, order wire Vs, microchip A and N electrode J; Said microchip A inside comprises state machine D and N metal-oxide-semiconductor S of a finite state output, and the input of said state machine D links to each other respectively with order wire Vs, and its outfan links to each other respectively with the base stage of N metal-oxide-semiconductor S; The colelctor electrode of N metal-oxide-semiconductor S links to each other respectively with external power cord Vcc, and the emitting stage of metal-oxide-semiconductor S links to each other respectively with N electrode.By state machine D the sequence signal of order wire Vs end input is decoded, thereby control is released in voltage on the selected electrode.
Wherein: Vcc is an external power source, for inside micro chip A and pick off R provide voltage, is driver B power supply simultaneously; GND is outside ground wire; Vs is an order wire, is responsible for selecting pick off; Va is the data acquisition line, is responsible for the transducing signal of distal end of catheter is sent to catheter proximal end.The inner communication of this routine distal end of catheter is controlled by order wire Vs pin input packet, and is identical with embodiment 1 structure.
In four embodiment of the present invention, the number of M and N is thought setting, quantity optionally and being provided with, and promptly by the size of conduit, the size of driver, pick off and electrode and quantity, chip sizes etc. are comprehensively confirmed but are received spatial restriction.Generally speaking, M and N all are not more than 100.
Claims (10)
1. the limited channel control circuit of multi-channel electric signal in Wicresoft's interposing catheter; It is characterized in that; Comprise one group of control unit and power line, ground wire, the order wire introduced from the outside; Power line, ground wire, order wire respectively with control unit in microchip be connected, said control unit also comprises one group of driver that is connected in parallel; One end of said each driver connects power line, and the other end is connected with microchip.
2. the limited channel control circuit of multi-channel electric signal is characterized in that in the Wicresoft according to claim 1 interposing catheter, and said microchip comprises a state machine and the metal-oxide-semiconductor identical with number of drives that finite state output is provided; The drain electrode of said metal-oxide-semiconductor connects one to one with said driver respectively, and source class is connected with said ground wire, and grid is connected with the outfan of said state machine respectively; The input of said state machine is connected with order wire, and power line and ground wire are that said state machine provides voltage.
3. the limited channel control circuit of multi-channel electric signal in Wicresoft's interposing catheter; It is characterized in that; Comprise one group of control unit and power line, ground wire, the order wire introduced from the outside; Power line, ground wire, order wire respectively with control unit in microchip be connected, said control unit also comprises one group of driver that is connected in parallel; One end of said each driver connects ground wire, and the other end is connected with microchip.
4. the limited channel control circuit of multi-channel electric signal in the Wicresoft according to claim 3 interposing catheter; It is characterized in that said microchip comprises that one provides the state machine of finite state output, metal-oxide-semiconductor, the power management module identical with number of drives; The drain electrode of said metal-oxide-semiconductor is connected with said power management module, and source class connects one to one with said driver respectively, and grid is connected with the outfan of said state machine respectively; The input of said state machine is connected with order wire, and power line and ground wire are that said state machine provides voltage; The voltage transitions that said power management module provides power line becomes the dissimilar voltage of multichannel to offer metal-oxide-semiconductor.
5. the limited channel control circuit of multi-channel electric signal in Wicresoft's interposing catheter; It is characterized in that; Comprise one group of control unit and power line, ground wire, order wire and the data acquisition line introduced from the outside; Power line, ground wire, order wire and data acquisition line respectively with control unit in microchip be connected, said control unit also comprises one group of pick off; Each pick off is connected with microchip, by power line and ground wire voltage is provided.
6. the limited channel control circuit of multi-channel electric signal is characterized in that in the Wicresoft according to claim 5 interposing catheter, and said microchip comprises a state machine and the metal-oxide-semiconductor identical with number of drives that finite state output is provided; The drain electrode of said metal-oxide-semiconductor connects one to one with said pick off respectively, and source class is connected with said data acquisition line, and grid is connected with the outfan of said state machine respectively; The input of said state machine is connected with order wire, and power line and ground wire are that said state machine provides voltage.
7. the limited channel control circuit of multi-channel electric signal in Wicresoft's interposing catheter; It is characterized in that; Comprise one group of control unit and power line, ground wire, the order wire introduced from the outside; Power line, ground wire, order wire respectively with control unit in microchip be connected, said control unit also comprises one group of electrode; Said each electrode is connected on the microchip.
8. the limited channel control circuit of multi-channel electric signal is characterized in that in the Wicresoft according to claim 7 interposing catheter, and said microchip comprises a state machine and the metal-oxide-semiconductor identical with number of drives that finite state output is provided; The drain electrode of said metal-oxide-semiconductor is connected with said power line, and source class connects one to one with said electrode respectively, and grid is connected with the outfan of said state machine respectively; The input of said state machine is connected with order wire, and power line and ground wire are that said state machine provides voltage.
9. according to the limited channel control circuit of multi-channel electric signal in claim 1,3, the 5 or 7 described Wicresoft interposing catheters, it is characterized in that said order wire pin input has the packet that is made up of command header, chip address, on off state and order tail.
10. according to the limited channel control circuit of multi-channel electric signal in claim 2,4, the 6 or 8 described Wicresoft interposing catheters; It is characterized in that; State machine in the said microchip is decoded to the sequence signal of order wire input; The open and close of control metal-oxide-semiconductor is selected specific passage, and power supply is introduced or sensor signal is drawn.
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| CN 201110243782 CN102379686B (en) | 2011-08-24 | 2011-08-24 | Limited channel control circuit for minimally invasive intervention intraductal multi-channel electrical signals |
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| CN 201110243782 CN102379686B (en) | 2011-08-24 | 2011-08-24 | Limited channel control circuit for minimally invasive intervention intraductal multi-channel electrical signals |
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| CN102379686B CN102379686B (en) | 2013-06-12 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1788675A (en) * | 2004-12-15 | 2006-06-21 | 日东电工株式会社 | Catheter and production method thereof |
| WO2007081842A2 (en) * | 2006-01-09 | 2007-07-19 | University Of Virginia Patent Foundation | Multi-port catheter system with medium control and measurement systems for therapy and diagnosis delivery |
| WO2008097767A2 (en) * | 2007-02-08 | 2008-08-14 | Rhythmia Medical, Inc. | Impedance registeration and catheter tracking |
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- 2011-08-24 CN CN 201110243782 patent/CN102379686B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1788675A (en) * | 2004-12-15 | 2006-06-21 | 日东电工株式会社 | Catheter and production method thereof |
| WO2007081842A2 (en) * | 2006-01-09 | 2007-07-19 | University Of Virginia Patent Foundation | Multi-port catheter system with medium control and measurement systems for therapy and diagnosis delivery |
| WO2008097767A2 (en) * | 2007-02-08 | 2008-08-14 | Rhythmia Medical, Inc. | Impedance registeration and catheter tracking |
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