CN104025497B - The medical system and intervention apparatus to be communicated for the data with intervention apparatus - Google Patents
The medical system and intervention apparatus to be communicated for the data with intervention apparatus Download PDFInfo
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- CN104025497B CN104025497B CN201280065040.3A CN201280065040A CN104025497B CN 104025497 B CN104025497 B CN 104025497B CN 201280065040 A CN201280065040 A CN 201280065040A CN 104025497 B CN104025497 B CN 104025497B
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Abstract
The present invention relates to data communication system (100) and method, and specifically, the system and method can apply to transmit data from the medicine equipment similar to conduit or seal wire etc via high-speed link (101).System (100) includes (internal) slave component (150), the slave component (150) has controllable slave clock (153) and emitter (151), and the emitter (151) is used to send the data-signal (ds) that clock is provided by slave clock signal (clk).In addition, it includes (external) master component (110) with clock controller (114,115,116), the clock controller receives master clock signal (ref_clk) and data-signal (ds), and generates the clock control signal (ccs) for slave clock (153) to be adjusted to master clock (113).Therefore, slave clock (153) can be realized in the case of low spatial and energy requirement (for example, by voltage controlled oscillator (VCO)).Furthermore, it is possible to realized by only two signal lines via it come exchange data signals (cs) and the link (101) of clock control signal (ccs).
Description
Technical field
The present invention relates to the data communication system and method for transmitting data-signal.To lead in addition, the present invention relates to data
Component, the medicine equipment (particularly conduit or seal wire) of letter system, and it is related to medical system.
Background technology
The instrument used in the medical treatment intervention of similar Minimally Invasive Surgery etc, is increasingly often equipped with from internal and sends number
According to one or more sensors.For example, the cardiovascular catheter including pressure sensor is described, wherein being provided to the sensor
External timing signal, to allow digital data communications (Jin Ji etc., " An Ultraminature CMOS Pressure
Sensor for a multiplexed cardiovascular catheter ", IEEE transactions on
electron devices,Vol.39,No.10,Oct 1992)。
The A1 of US 2009/015304 are disclosed for the slave of the main equipment connected by data transmission link sum to be entered
The synchronous various processes of row.The signal that main equipment measurement receives from slave is inclined on the phase of the clock signal of main equipment
Move.Then, main equipment sends the information to slave, and the slave correspondingly adjusts the phase offset of its signal.
In some embodiments, slave includes the clock source of their own.
The A1 of WO 2010/097111 disclose the process of the clock adjustment in packet-based communication network.Requesting
After main equipment, client sends multiple timings to main equipment and is grouped.During by the way that these being grouped to the arrival for reference frequency
Between be compared, main equipment determines difference.The value is sent back into client, and for adjusting local oscillator.
Multiple medicine equipments of the A2 of EP 2 158 841 and such as cardiac catheter are by being externally controlled platform to all these
The synchronization of apparatus transmission message is relevant.
The content of the invention
It is an object of the present invention to provide the mode for allowing high-speed data communication, particularly intervention apparatus and external equipment it
Between communication, wherein the device inside apparatus should preferably have less space and/or energy requirement.
This target is realized by medical system according to claim 1.It has been disclosed in the dependent claims preferable
Embodiment.The component for including explaining in more detail below according to the medical system of the present invention.
According to the data communication system of the present invention, serve communication of the data from a communication party to another communication party or
Person transmits.It includes following component：
A) first assembly, hereinafter referred to as " slave component " (or referred to as " subordinate "), to indicate that it is communication system
The theme of the more high-level control of system.Slave component should include following sub-component：
A1) it is used for the clock for generating clock signal, for reference purposes, these elements hereinafter will be referred to as " subordinate
Clock " and " slave clock signal ".Slave clock should be controllable, it means that can within given limitation, to from
The characterisitic parameter (being typically its frequency) for belonging to clock signal is adjusted.
A2) it is used for the emitter for sending data-signal, the wherein data-signal provides clock by slave clock signal.This meaning
Taste data-signal by least a portion of " insertion " slave clock signal, and with it there is direct relation (to allow at least
Clock signal is partly fetched from data-signal).Digital data signal is preferably used to realize in this, for example, can be by number
Synchronized according to bit sequence and slave clock signal.But analog data signal is also possible, such as by using amplitude
Modulation or multi-level signaling.
It is assumed that data encoded is carried by another (logic) component different from slave component in the data-signal
Supply, such as (one or more of sensors are not functionally the one of communication system by the offer of one or more sensors
Part, but they for example can be realized on same ASIC device).
B) the second component, hereinafter referred to as " master component ", it includes following sub-component：
B1) it is used for the receiver for receiving data-signal mentioned above.
B2) it is used for the clock for generating clock signal, for reference purposes, these elements hereinafter will be referred to as " when main
Clock " and " master clock signal ".
B3) clock controller, it receives foregoing master clock signal and the data-signal received, and generation " when clock
Signal processed ", slave clock can be adjusted to by master clock by " clock control signal ".This adjustment means：By subordinate
At least one characterisitic parameter of clock signal is changed into the given target component optimally provided with master clock signal and matched.
A typical example is lifted, the frequency of slave clock signal can be adjusted to the frequency of master clock signal.
C) link or communication channel, can be handed over via the link or communication channel between slave component and master component
Change data-signal and clock control signal mentioned above.Via the link, therefore the emitter of slave component is coupled to master
The receiver of component, the clock controller of master component are coupled to the slave clock of slave component.
According to second aspect, the present invention relates to the side for sending data-signal from slave component to master component via link
Method, methods described include following step：
A) clock is provided to the data-signal using slave clock signal, the slave clock signal is by slave component
In slave clock generation.
B) data-signal is received in master component.
C) slave clock signal is recovered at least in part from data-signal.
C) by the slave clock signal recovered compared with master clock signal, and generate associated with the comparative result
Clock control signal, wherein, the master clock signal be in master component master clock generation.
D) clock control signal is based on, the slave clock in slave component is adjusted to master clock.
Data communication system and method are the different realizations of same inventive concept.Therefore, for one kind in these realizations
There is provided explanation and definition are provided, are also effective for other realize.
It is necessary to have on reality in high-speed data communication (it is generally occurred with 100Mbps or higher speed)
The Exact knowledge of clock frequency.This can be completed by using precision clock (for example, crystal clock on both sides), or
There is the demand that can track non-accurate clock frequency.The data communication system and the important advantage of method proposed is：
Data reach according to the frequency (for example, important system clock frequency) by master component " defined ", without in slave component
Side (side being restricted on space and power) has accurate clock.Therefore, it is possible to use with the small of less power consumption
Type component realizes slave clock.
Hereinafter, the various preferred embodiments of the present invention, these embodiments and data described above will be described
Communication system is relevant with method.
According to the first preferred embodiment, slave clock includes either fully including voltage controlled oscillator (VCO) or electricity
Flow control oscillator (CCO).VCO and CCO is component known to those of skill in the art, and they respectively allow for passing through
External Control Voltage or electric current adjust their output frequency.
Generally, the link between slave component and master component can carry data-signal and clock control signal
Any kind of communication channel.If data-signal and/or clock control signal are for example by wireless (RF) signal or light
Signal is come what is realized, then link can be simply the medium that can propagate these signals wherein.If data-signal and when
Clock control signal is realized by different forms, then link includes being used for the carrier wave of both.
In a preferred embodiment, link (at least) includes two signal lines, can be in subordinate via this two signal line
Electric signal is changed between component and master component.In this case, data-signal and/or clock control signal can be such as
Represented by the voltage applied to the signal wire or electric current.Most preferably, link is only by that can carry data-signal
And/or two signal lines of clock control signal are formed.Realize that the link makes space requirement only by two signal lines
It is minimized, and ensures reliably to connect simultaneously.
Master component can alternatively include being used for the transmitting for sending signal (preferably, data signal) via the link
Machine, the signal are hereinafter referred to as " main signal ".The main signal can transmit extra data from master component to slave component
And/or control command (in addition to clock control signal), wherein this communication advantageously uses available link.
Slave component preferably include for via the link receive " extra signal " (except clock control signal it
Receiver outside).Specifically, this extra signal can be the main letter generated by master component of foregoing embodiment
Number.
According to a preferred embodiment of the present invention, data-signal, clock control signal, main signal and/or extra signal
Represented by the voltage between two signal lines of link and/or the difference of electric current (if for example, V1 and V2 are in described two letters
If voltage on number line, as poor (V1-V2)).Then, the symbol (polarity) of the difference can represent " 0 " of respective signal
" 1 " bit.
According to another embodiment, data-signal is represented by the change loaded, and described be supported in slave component couples
To two signal lines of link.Then, the receiver in master component can sense this load change.
Preferably, clock control signal, extra signal and/or main signal are by the common mode electricity in two signal lines of link
Pressure and/or electric current are represented (for example, if V1, V2 are the voltage in two signal line, as value (V1+
V2)).This expression advantageously can be combined with embodiment mentioned above, and wherein data-signal is by voltage and/or electricity
Difference between stream represents, this be due to its enable the signal line of identical two be used for data-signal and clock control signal (and/
Or main signal, extra signal) transmission.(in theory) can also overturning the expressions of these signals, (that is, data-signal can be
Common mode, clock control signal are difference).It is due to this it is generally necessary to higher but it is preferable that data-signal is expressed as into difference
Transfer rate.
According to another embodiment of the invention, main signal (or " extra signal ") ignores (override) data letter
Number.If for example, by both data-signal and main signal be expressed as electric current in two signal lines of link or voltage it
Between difference, then the difference applied by main signal can be very big so that its symbol (polarity) will not by simultaneously number
It is believed that number change.Therefore, can be regardless of data-signal, to fetch the information of the coding in the symbol (polarity) of main signal.
Master component and slave component are two compatible portions of data communication system, and they are specially on being set each other
Meter.The essential part of the present invention is realized in these components each, wherein these components are themselves
Business commodity.Therefore, the invention further relates to the slave component of the element as their own, the slave component to include：
- be used to generate the controllable slave clock of slave clock signal, wherein the clock can by clock control signal Lai
Adjustment.
- emitter, the data-signal of clock is provided by slave clock signal for sending.
Similarly, the present invention relates to the master component of the element as their own, the master component to include：
- receiver, for receiving data-signal from foregoing slave component.
- master clock, for generating master clock signal.
- clock controller, for receiving master clock signal and data-signal, and generation can be by foregoing slave component
Slave clock be adjusted to the clock control signal of master clock.
Moreover, it relates to medicine equipment, specifically, the intervention apparatus of similar conduit or seal wire, the device
Tool includes the slave component of type described above.The advantages of this medicine equipment, is that it can be minimized, and this is due to
The relatively low space requirement of slave component, while allow to carry out high speed data transfer to external equipment.
Finally, the present invention relates to the medical system of the external equipment including foregoing apparatus and with master component, wherein should
The slave component of apparatus and the master component are compatible (that is, forming the data communication system according to the present invention), and via chain
Road (for example, cable) couples.
Brief description of the drawings
With reference to embodiment described below, to illustrate these and other aspects of the invention, and by referring to these
Embodiment, these and other aspects of the invention will become obvious.
In the accompanying drawings：
Fig. 1 is shown to communicate with the data of the reference clock in slave component and master component；
Fig. 2 shows that the data for sending the clock signal of master clock to slave component wherein communicate；
Fig. 3 schematically shows the communication system according to the present invention；
Fig. 4 schematically shows the particular implementation for representing the data communication system of data-signal by difference between current wherein
Example；
Fig. 5 is schematically shown represents the specific reality of the data communication system of data-signal by load change wherein
Apply example；
Fig. 6 shows the example process of the voltage and current on the link of Fig. 5 data communication system.
In the accompanying drawings, similar reference or by 100 integral multiple come the numeral distinguished, refer to identical or class
As component.
Embodiment
Can be by the sophisticated integration imaging and sensor device of the intervention apparatus in such as conduit and seal wire etc, to improve
Diagnosis and treatment in minimally invasive medical program.But the very limited amount of size of these apparatuses is for integrated necessary function
Cause great challenge.Micromachining (MEMS) sensor can be combined with asic technology, and very small
Improved imaging and/or sensing function are realized in region.Relevant trend is：Need increasing data volume from apparatus
Tip sends external equipment to.
Communication between the sophisticated equipment (internal) and external equipment (external) of apparatus, it is desirable to be able to there is efficacious prescriptions
Formula transmits the link of data.In the present context, it is " effective " to refer to：Less power consumption in vivo is caused, it is necessary to simple and less
Inside function, and need small number of signal wire to connect internal and external function.
Low line number is critically important, and this is due to that limited space can be used for giving electric wire fixed course.The inner chamber of seal wire
It is 250 μm, and the diameter of conduit is 1-5mm (having the trend towards smaller conduit).This also limit in vivo functionality
Free Region.Due to the security regulations on heating tissue, therefore power consumption is critically important in vivo.
Sane (two-way) high speed serialization link is realized between two cut cables, it usually needs：
- one or two emitters of data is sent according to the speed of regulation.
- it is anticipated that speed receive one or two receiver of data.
- permission transmits two signal lines of high speed signal with differential fashion.
- one or two reference clock equipment.
Fig. 1 is schematically shown to communicate with the data of two clockworks, and an equipment (ref_clk_1) is located at main group
Part place, and an equipment (ref_clk_2) are located at slave component place.Generally, in this case, for clock jitter and
Clock frequency matching has strict requirements.
Fig. 2, which is schematically shown, to be only existed the data of a reference clock (ref_clk_1) in master component place and leads to
Letter.Because the clock is not near (movable) emitter of slave component, it is therefore desirable to which extra circuit is (for example, connect
Receive electromechanical road and PLL) and extra electric wire come from the master component place of link to slave component place transmit clock signal.
In the case where conduit or seal wire are applied, most high-speed data-flow is from equipment (the subordinate group at tip
Part, " internal ") arrive external equipment (master component, " external ").Height is sent from slave component to master component according to required speed
Fast (HS) data, it usually needs in the accurate reference clock (for example, crystal oscillator) of slave component, or via one or
Two electric wires transmit accurate clock signal to slave component.Due to there was only limited Free Region, therefore realize in vivo brilliant
Body is unattractive to generate reference clock signal (Fig. 1).For the same reason, due to need extra electric wire,
Hardware and power consumption, therefore it is also unattractive to transmit accurate clock signal (Fig. 2).
The present invention, which proposes, data is sent from slave component to master component according to the speed of regulation, and in subordinate group
Solution at part without this accurately clock reference.The solution only needs two signal lines, and function is drawn
Point so that most function and power consumption are " external ".The complete control of link is retained in " external ".
Fig. 3 shows the block diagram of data communication system 100 according to an embodiment of the invention.System 100 includes three
Individual primary clustering, i.e.,：
- " slave component " 150 in " internal " side, it is used to transmit most of data, but includes simple Data-Link
Road function, and consume seldom power.
- " master component " 110 in " external " side, it has the complete control for link, comprising more complicated function, and
Consume more power.
- links 101 of the two components is connected, for example, cable or other types of interconnection.
For example, slave component 150 can be integrated into sophisticated place equipped with sensor, actuator (actuator) and/
Or in the intelligent seal wire or conduit of imaging device, these parts are schematically represented by frame 155.Collected (simulation) letter
Number numerical data will be converted into, for example, by way of sigma-delta ADC 156.Data are encoded in encoder 157, and are made
The external world is sent to by link 101 by emitter 151 for " data-signal " ds.
Cable 101 preferably includes two signal lines 102 and 103 and (shows the 3rd connection 104 simply to illustrate that individually
Signal stream).As explained in more detail below, these signal wires 102 and 103 transmit high-speed data signal ds (via differential letter
Number transmission), VCO clock control signals ccs (being transmitted via the signal of common mode) and extra control and/or low speed data (via
The signal of differential signal transmission and common mode transmits).In addition to this two signal line (or " functional line "), cable 101 is in reality
Can extraly include being used for the extra connection (not shown) of (VDD, GND) of powering in trampling so that altogether four electric wires (
In the case of complete electrical connection).If providing battery to slave component 150, the sum of electric wire can be limited to two
Bar.
Internal slave component 150 includes " slave clock ", is realized here by voltage controlled oscillator (VCO) 153, and it is to originally
Ground high speed transmitter 151 and receiver 152 transmit " slave clock signal " clk.Speed depends on application, but effective data rate
Can be hundreds of Mbit/s.High speed transmitter 151 can be active transmitters (Fig. 4) or load modulating equipment (Fig. 5).Due to
Latter case can provide to consume inside less, therefore it is preferable.Internal receiver 152 must be able to determine differential defeated
Enter the polarity of signal.The speed of receiver depends on application, but in most instances, it is medium.
External master component 110 includes speed receiver 112, and it is used to receive as the number transmitted by internal slave component 150
It is believed that number ds.In addition, master component 110 is the main side of communication.It controls subordinate data rate, and master component and slave component
Operator scheme.In order to control HS data rates, master component 110 includes " clock controller " with following component：
- be used to carry out the unit 114 of clock recovery,
- master clock signal that compares the frequency of recovered slave clock signal and provided by master clock 113 is provided
The frequency and/or phase detectors 115 of ref_clk reference clock frequency,
- loop filter 116.
Master component 110 also includes the unit 122 for being used for carrying out data recovery and data decoding.Pass through the side of oversampling technique
Formula, or by way of (additionally) PLL for entering horizontal lock to input data, data recovery is possible.
In addition, master component 110 includes control unit 120, described control unit 120 can be by low speed data (storage 121)
Or control bit is used as " main signal " ms, and slave component 150 is given via emitter 111.In the feelings of passive HS emitters in vivo
Under condition, the emitter 111 can also provide energy (fixed electric current) to internal emitter 151.
VCO 153 can be realized in ASIC at the tip positioned at corresponding apparatus (for example, seal wire or conduit).It is this
Relatively low electricity is only used only in non-accurately clock source, and only needs limited amount of space, to generate clock signal clk.Such as
Upper described, the signal provides clock to local transmitter 151 and receiver 152.Internal emitter 151 crosses over link 101, will be through
The HS data of coding are transmitted as data-signal, wherein this coding allows to fetch from this transmitted signal
Clock frequency.External master component 110 receives data-signal ds, performs clock recovery, hereafter, by clock frequency and reference clock frequency
Rate ref_clk is compared.By way of negative feedback loop, VCO frequency is adjusted, to adapt to reference clock frequency.
In addition, across the signal line 102 and 103 of identical two by HS data ds and VCO clock control signals ccs (and
Alternatively, the main signal ms provided by internal emitter 111) to be combined be possible：, can using less swinging of signal
Differentially to drive HS data ds.Via common mode (CM) voltage level of signal wire, to transmit VCO clocked voltages ccs.
Below with reference to Fig. 4 and Fig. 5, this method is explained in greater detail.
Fig. 4 shows the block diagram of the communication system 200 with master component 210 and slave component 250, wherein master component 210
Generally it is designed as illustrated in fig. 3 with slave component 250.The specific component of the system is illustrated in greater detail, with explanation
Possible implementation (as explained above, the usual extra electric wire existed for powering, under of two signal line interfaces
These extra electric wires are not accounted in text).
Due to the cable distribution of link 201 typical length (± 2m) and data link typical rate (>>10MHz), because
This cable shows as transmission line.Therefore, the characteristic impedance (Z0) of cable is important, and is needed in clearing end and/or transmission
Terminating resistor R1, R2, R3, R4 of matching are placed on end, so that unexpected reflection is minimized.
During high-speed transfer, internal high speed transmitter 251 sends the data (D1) collected.HS signals ds uses differential letter
Number transmission, electromagnetic radiation (EMI) and susceptibility (EMS) are minimized.The shown implementation of emitter 251 is pressed
Run according to fixed bias current (I1a and I1b), it is minimized the disturbance of the voltage locally provided.For example, it can pass through
First current source I1a is connected to the first signal wire 202, and the second current source I1b is connected to another signal line 203,
To be encoded to data bit D1=" 1 ", and by the way that the first current source I1a is connected into secondary signal line 203, and by
Two current source I1b are connected to the first signal wire 202, to be encoded to data bit D1=" 0 ".In the high speed transmission mode phase
Between, can be with low speed emitter 211 outside closure body.
Loop filter 216 in master component 210 is a part for negative feedback loop, wherein the negative feedback loop is by subordinate group
The frequency of VCO 253 in part 250 is adjusted to required value.In shown implementation, loop filter output passes
The electric current I2 of warp let-off adjustment, the adjusted electric current I2 near VCO 253, is converted into common mode (CM) by (by resistance R5)
Voltage.
External master component 210 can by activating its emitter 211, and by low speed (or medium speed) data D2 or
Person's control data drives as " main signal " ms, refuses HS data flows across link 201.Pass through selection and internal electric current (I1a
With I1b) bigger external bias current (I3a and I3b) is compared, internal receiver (not shown) can be by sensing differential letter
Number polarity, to detect vitro data signal.During main signal ms low speed data sending mode, internal HS emitters 251
Preferably holding activity.This allows frequency control loop holding activity, and the lock being maintained between reference clock and endogenous clock
Phase.
Fig. 5 shows the block diagram of the communication system 300 with master component 310 and slave component 350, wherein master component 310
Generally it is designed as illustrated in fig. 3 with slave component 350.The specific component of the system is illustrated in greater detail, with explanation
The replacement implementation of high speed transmitter.
In the version, internal HS emitters 351 are implemented as to load modulating equipment.The phase is sent in data-signal ds HS
Between, external LS emitters 311 transmit the difference current of fixation.Side provides matching in vitro by resistance R1 and R2 in master component 210
Termination.The termination in internal place includes resistance R3 and resistance R6 and R7 are alternatively coupled in parallel to by R4, HS emitter 351
Resistance R3 and R4.Therefore, can the value more than characteristic impedance (for example, 5Z0) and less than characteristic impedance (for example, 0.5
Z0 between value), terminal is changed.Reflection (its composition data-signal will be caused by representing HS data D1 this conversion
ds).Due to the HS information that reflection only occurs on link 301, therefore they can be fairly easy to be detected.
External emitter 311 can be by the polarity of (fixation) electric current of bolt jail low speed emitter 351, across link 301
Data D2 is sent as main signal ms.Internal receiver (not shown) can be sensed by sensing the polarity of differential wave
To low speed data ms.
Various ways (for example, duration by changing reverse polarity pulse) can be used, by data bit (" 1 " or
" 0 ") encode in main signal.Fig. 6 shows the example of this pulse width modulation, wherein curve above is represented in link
The electric current I flowed in signal wire 302, following figure show the voltage between the signal wire 302 and 303 of link.Show at this
In example, HS emitters 351 send fixed clock (no data content) according to 200Mbit/s clock rate.Low speed data
Speed is lower 12 times.Can by using endogenous clock 353 be voltage signal (polarity) provide clock, come distinguish long pulse with
Short pulse.The duration (I=-5mA) of reverse polarity pulse determines the value of transmitted data bit.Therefore, it is shown
Low speed main signal is (010101) sequence.
It should be noted that the HS data encodings in data-signal ds are an importances of proposed system.Number
The clock recovery under all situations is must be allowed for according to coding.Clock recovery is needed, so as to be adjusted to HS data rates.
By being counted (frequency detecting) to the conversion times of HS data-signals, or by by the position of HS data conversions and reference
Clock conversion is compared (phase bit comparison), or by mixing both approaches, clock recovery is possible.On startup,
Frequency detecting effect is best, and this is due to that it will not cause false-lock, and phase-detection is likely to occur the problem.Frequency detecting
It is disadvantageous in that it needs the conversion of fixation/dose known amounts of HS data-signals；This can be pacified in the coding of data
Row, or fixation/known data patterns can be sent to ensure by the section start in data sequence.
In addition, HS data encodings are important, this is due to that endogenous clock signal may be born due in VCO control signals
Electrical Interference and caused by shake.By selecting the type using strong clock frequency component progress data encoding, data recovery
Less this shake will be born.
Basic data encoding is known Manchester's code (that is, by the intermediate point in the fixed cycle, low and high
Between changed to represent " 0 " and " 1 ").The efficiency of Manchester's code is at a fairly low, and (multiple conversions, high bandwidth need to be used for
Data transmit).In addition, Manchester's code will not predict word synchronization or frame synchronization, this may need to be added to Man Chesi
Above spy's coding.Therefore, 8 bits to 10 bits of encoded are a kind of alternative (referring to US4486739).
In a word, describing can be with power-efficient and area efficient manner, from the sophisticated equipment (body positioned at intervention apparatus
It is interior) to external equipment it is (external) transmission data electric high speed serialization link.Transmitted at a high speed from the tip according to the speed of regulation
The ability of data, it can be realized in the case of without accurate endogenous clock reference source.Two signal lines are needed only to, to work(
It can be divided so that most function and power consumption are in vitro.The complete control of link retains in vitro.All these aspects
Allow the solution to be highly miniaturized, to transmit substantial amounts of data.
The system according to the present invention avoids the needs to the accurate reference clock signal of slave component side.Alternatively,
Need control signal.It is in an importance of this aspect：Compared with high-speed clock signal, passed (potentially via multiplexing)
Low frequency control signal is sent to be easier (particularly in conduit or seal wire).High speed signal is difficult to be re-used, and if
If electrical domain is completed, it is often necessary to more signal lines (similar coaxial cable or twisted-pair feeder etc.).Identical keeps being used to connect
The collection of letters number；Compared with high-speed clock signal, receive low-frequency control signal and be easier.
Therefore, method of the invention is imply using a high-speed data signal and a low-frequency control signal.Generally, it is high
Fast data-signal transmits via (two) electric signal line, via single light guide line or wirelessly.Various ways can be used
To transmit control signal, but due to the low-frequency content of the signal, therefore wirelessly or optically realize the purpose without suction
Gravitation (it is assumed that the system will include electric signal).If there is no electric wire (for example, for MRI compatibility reasons), also need certainly
Optically or wirelessly to transmit control signal.
In the communication link with mis instruments of high-speed data transfer is needed, the solution proposed is that especially have
, for example, come from conduit or seal wire ultrasonic imaging (e.g., intravascular ultrasound (IVUS), echo retouches meter art in heart
(ICE), perspective IVUS/ICE, the ablation based on ultrasound monitor), but also include all types of vivo sensing devices (stream, pressure
Power, temperature) etc..Vivo sensing device does not need high-speed link actually.The speed of sensor is limited to such as 1MHz, and owns
The imaging of type needs hundreds of Mb/s easily.
Although the present invention is explained and described in description in accompanying drawing and above, such explanation and description will
It is regarded as illustrative or exemplary rather than restricted；The present invention is not limited to the disclosed embodiments.By right
The study of accompanying drawing, disclosure and appended claims, those of skill in the art, can when putting into practice stated invention
To understand and realize other modifications of the disclosed embodiments.In detail in the claims, the word of " comprising " one is not excluded for other elements
Or step, and indefinite article " a (one) " or " an (one) " be not precluded from it is multiple.Will in mutually different appurtenance
The only true of the middle some measurements of statement is sought, advantage can not be used as by not indicating that the combination of these measurements.Claims
In any label be not necessarily to be construed as limiting the scope of the invention.
Claims (15)
1. a kind of medical system (100-300), including：
A) intervention apparatus of the slave component (150-350) with following component is included：
A1) controllable slave clock source (153-353), it is used to generate slave clock signal (clk), the controllable slave clock source
It can be adjusted by clock control signal, and
A2) emitter (151-351), it is used to send data-signal (ds), wherein, the emitter (151-351) to from
The data of sensor, actuator and/or imaging device are encoded, and the data-signal (ds) is by the slave clock signal
(clk) clock is provided with least a portion of the insertion slave clock signal；
B) external equipment of the master component (110-310) with following component is included：
B1) receiver (112), it is used to receive the data-signal (ds),
B2) master clock (113), it is used to generate master clock signal (ref_clk),
B3) clock controller (114,115,116-316), it is configured as receiving the master clock signal (ref_clk) and institute
Data-signal (ds) is stated, and is generated for the controllable slave clock source (153-353) to be adjusted into the master clock (113)
The clock control signal (ccs)；
C) link (101-301), via the link (101-301) can exchange the data-signal (ds) and it is described when clock
Signal (ccs) processed.
2. medical system (100-300) according to claim 1, it is characterised in that the controllable slave clock source includes
Voltage or the oscillator of current control (153-353).
3. medical system (100-300) according to claim 1, it is characterised in that the link (101-301) includes two
Signal line (102-302,103-303).
4. medical system (100-300) according to claim 1, it is characterised in that the link (101-301) is by two
Signal wire (102-302,103-303) forms.
5. medical system (100-300) according to claim 1, it is characterised in that master component (110-310) bag
Include：Emitter (151-351), it is used to send main signal (ms) via the link (101-301).
6. medical system (100-300) according to claim 1, it is characterised in that slave component (150-350) bag
Include：Receiver (152), it is used to receive extra signal (ms) from the link (101-301).
7. medical system (100-300) according to claim 1, it is characterised in that the data-signal (ds) and/or institute
Clock control signal (ccs) is stated by the voltage between two signal lines (102-302,103-303) of the link (101-301)
And/or the difference of electric current represents.
8. medical system (100-300) according to claim 5, it is characterised in that the data-signal (ds), it is described when
Clock control signal (ccs), and/or the main signal (ms) by the link (101-301) two signal lines (102-302,
The difference of voltage and/or electric current between 103-303) represents.
9. medical system (100-300) according to claim 6, it is characterised in that the data-signal (ds), it is described when
Clock control signal (ccs), and/or the extra signal by the link (101-301) two signal lines (102-302,
The difference of voltage and/or electric current between 103-303) represents.
10. medical system (100-300) according to claim 1, it is characterised in that the data-signal (ds) is by loading
The change of (R3, R3, R6, R7) represents that the load (R3, R3, R6, R7) couples in the slave component (150,350)
To two signal lines (102,302,103,303) of the link.
11. medical system (100-300) according to claim 5, it is characterised in that the data-signal (ds), described
Clock control signal (ccs) and/or the main signal (ms) by the link (101-301) two signal lines (102-302,
Common-mode voltage and/or electric current on 103-303) represent.
12. medical system (100-300) according to claim 5, it is characterised in that the main signal (ms) is ignored described
Data-signal (ds).
13. medical system (100-300) according to claim 1, it is characterised in that the intervention apparatus be conduit or
Seal wire.
14. a kind of intervention apparatus, it is configured as being communicated with external master component and including the subordinate group with following component
Part (150-350)：
A1) controllable slave clock source (153-353), it is used to generate slave clock signal (clk), and
A2) emitter (151-351), it is used to send data-signal (ds), wherein, the emitter (151-351) to from
The data of sensor, actuator and/or imaging device are encoded, and the data-signal (ds) is by the slave clock signal
(clk) clock is provided with least a portion of the insertion slave clock signal；
Wherein, the controllable slave clock source (153-353) is configured as receiving the clock control from the external master component
The clock control signal (ccs) of device, the clock control signal (ccs) are used for the controllable slave clock source (153-353)
It is adjusted to the master clock (113) of the external master component.
15. intervention apparatus according to claim 14, it is characterised in that the intervention apparatus specifically conduit or
Seal wire.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201161552627P | 2011-10-28 | 2011-10-28 | |
| US61/552,627 | 2011-10-28 | ||
| PCT/IB2012/055877 WO2013061272A1 (en) | 2011-10-28 | 2012-10-25 | Data communication with interventional instruments |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104025497A CN104025497A (en) | 2014-09-03 |
| CN104025497B true CN104025497B (en) | 2018-02-09 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1267967A (en) * | 1999-03-15 | 2000-09-27 | 永泰锋国际有限公司 | Digital control network system for mixed-mode transceiver and conflict-free communication method |
| CN101675900A (en) * | 2008-08-28 | 2010-03-24 | 韦伯斯特生物官能公司 | Synchronization of medical devices via digital interface |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1267967A (en) * | 1999-03-15 | 2000-09-27 | 永泰锋国际有限公司 | Digital control network system for mixed-mode transceiver and conflict-free communication method |
| CN101675900A (en) * | 2008-08-28 | 2010-03-24 | 韦伯斯特生物官能公司 | Synchronization of medical devices via digital interface |
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