CN106817147A - Wireless telemetering module and its operating method - Google Patents
Wireless telemetering module and its operating method Download PDFInfo
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- CN106817147A CN106817147A CN201710062540.6A CN201710062540A CN106817147A CN 106817147 A CN106817147 A CN 106817147A CN 201710062540 A CN201710062540 A CN 201710062540A CN 106817147 A CN106817147 A CN 106817147A
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- 238000011017 operating method Methods 0.000 title claims description 12
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000001629 suppression Effects 0.000 claims abstract description 10
- 238000004891 communication Methods 0.000 claims description 78
- 230000008878 coupling Effects 0.000 claims description 18
- 238000010168 coupling process Methods 0.000 claims description 18
- 238000005859 coupling reaction Methods 0.000 claims description 18
- 230000005405 multipole Effects 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 10
- 230000004044 response Effects 0.000 claims description 7
- 230000036039 immunity Effects 0.000 claims description 3
- 230000036541 health Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 12
- 230000006870 function Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 5
- 238000011045 prefiltration Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000002513 implantation Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
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- 230000035945 sensitivity Effects 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
- H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
- H04B1/525—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/0057—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using diplexing or multiplexing filters for selecting the desired band
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0067—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with one or more circuit blocks in common for different bands
- H04B1/0082—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with one or more circuit blocks in common for different bands with a common local oscillator for more than one band
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a kind of wireless telemetering module, including implantable medical device and telemetry module, the telemetry module is realized being connected with the implantable medical device by link；By wireless telemetering module and interference suffered in associated method suppression reception signal, it is ensured that the use quality of implantable medical device, the service life of equipment is extended, also ensure that the health of human body.
Description
Technical field
The present invention relates to field of medical device, and in particular to wireless telemetering module and its operating method.
Background technology
Medical Devices are generally included for the telemetric circuit with other equipment or monitor radio communication.In the past, can plant
Entering medical device telemetry system requirements has a programming head for including the antenna being directly maintained in implantation equipment.In telemetry system
Progress be allow at several meters apart from upper radio communication, sometimes referred to as " apart from remote measurement ", without using programming head.With reference to
Telemetry module in implantable device is designed to prevent excessive battery consumption using relatively low current practice, and excessive
Battery consumption will shorten implanted device life-span.In external programmer, home monitor or other with implantation equipment communication
In equipment, Anneta module is needed to desired signal sensitivity, but be it may be easily affected by communication bandwidth and outside communication bandwidth
Interference.
The content of the invention
In order to solve the above technical problems, the present invention proposes wireless telemetering module and its operating method, can be planted with ensure that
Enter the use quality of medical treatment device, extend the service life of equipment, also ensure that the health of human body.
To reach above-mentioned purpose, technical scheme is as follows：
A kind of wireless telemetering module, including implantable medical device and telemetry module, the telemetry module are planted with described
Enter medical treatment device to realize connecting by link, wherein telemetry module includes：
Antenna, is configured as the signal of communication for receiving with channel frequency and having channel width；
Transceiver, is configured as being operated in the range of channels of the single channel frequency including the channel frequency；
Processor, it is coupled to the transceiver and is configured as controlling the transceiver in reception pattern and sends mould
Operated under formula；
AF panel module, is configured as receiving control signal from the processor, when the transceiver is in the reception
When being operated under pattern, the AF panel module is coupling between the antenna and the transceiver, the AF panel module
Decay the interference signal occurred in the reception signal, in response to the processor control signal, the AF panel module
At the channel frequency signal of communication is provided to the transceiver；
It is coupling in first switch between the antenna and the AF panel module and is coupling in the AF panel mould
Second switch between block and the transceiver.
As preferred, wherein the transceiver is configured as receiving the scope of individual channel frequency, and it is wherein described
AF panel module includes：
First wave filter, is configured as the interference letter outside decay appears in the range of channels in the reception signal
Number；
Second wave filter, is configured as the interference letter appeared in the reception signal within the range of channels of decaying
Number.
As preferred, wherein second wave filter also includes including intermediate-frequency filter, and the immunity module：
First frequency mixer；Intermediate-frequency filter including centre frequency and passband；
Second frequency mixer；And local oscillator, it is configured to provide mixed frequency signal；
As preferred, also include：
First multipole switch and the second multipole switch, wherein second wave filter includes that multiple selectable passages are special
Wave filter, each has the centre frequency corresponding at least one single channel frequency, and first multipole switch and described
Second multipole switch receives the control signal from the processor, for selecting the specific filtering of channel corresponding to channel frequency
Device.
A kind of operating method of wireless telemetering module, including：
Receive the wireless signal of the signal of communication including being sent with channel frequency and with single channel bandwidth；
Control transceiver in a receiving mode and is launched in the range of channels of the single channel frequency including the channel frequency
Pattern is operated；
When the transceiver is operated under the reception pattern, the antenna of the wireless signal and the transmitting-receiving are being received
Coupled interference suppression module between device；
The AF panel module is controlled to appear in the reception signal with response to processor control signal decay
In and fall in the range of channels and the range of channels outside channel width outside interference signal；
The signal of communication of the channel frequency is provided to the transceiver；
To the first switch being coupling between the antenna and the AF panel module and be coupling in it is described interference suppression
Second switch between molding block and the transceiver provides control signal, so that first and second switch is in transceiver
During reception pattern by the AF panel module be coupling in first state between the antenna and the transceiver and
The switching between the second state of the AF panel module is bypassed during the transceiver sending mode.
As preferred, wherein the transceiver is configured as receiving the scope of individual channel frequency, and wherein decay
The interference signal includes：
Using the first wave filter with the passband corresponding to the range of channels to it is described reception signal be filtered and
The reception signal is filtered using the second wave filter with the passband narrower than the range of channels.
As preferred, wherein second wave filter includes the intermediate-frequency filter with passband and centre frequency, and
Methods described also includes：
Produce corresponding to frequency and with one of difference in the channel frequency and the intermediate-frequency filter passband
Local oscillator signal, mixes received signal and local oscillator signal, and mixing is fallen into so that signal of communication is converted to
In intermediate-frequency filter passband in signal output, the mixed signal is exported using the intermediate-frequency filter is filtered and is mixed
Filtered mixed signal output and local oscillator signal is closed, filtered mixed signal is converted back into channel frequency.
The invention has the advantages that：
The interference suffered by wireless telemetering module and in associated method suppression reception signal of the invention, it is ensured that
The use quality of implantable medical device, extends the service life of equipment, also ensure that the health of human body.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described.
Fig. 1 is the structural representation of wireless telemetering module disclosed in the embodiment of the present invention；
Fig. 2 is the function connects schematic diagram of remote measurement in wireless telemetering module disclosed in the embodiment of the present invention；
Fig. 3 is the FB(flow block) of wireless telemetering module disclosed in the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described.
The invention provides wireless telemetering module and its operating method, its operation principle is by wireless telemetering module and phase
Suffered interference in the method suppression reception signal of association, it is ensured that the use quality of implantable medical device, extends and sets
Standby service life, also ensure that the health of human body.
With reference to embodiment and specific embodiment, the present invention is further detailed explanation.
As shown in Figure 1-Figure 3, a kind of wireless telemetering module, including implantable medical device and telemetry module, the remote measurement
Module is realized being connected with the implantable medical device by link, and wherein telemetry module includes：
Antenna, is configured as the signal of communication for receiving with channel frequency and having channel width；
Transceiver, is configured as being operated in the range of channels of the single channel frequency including the channel frequency；
Processor, it is coupled to the transceiver and is configured as controlling the transceiver in reception pattern and sends mould
Operated under formula；
AF panel module, is configured as receiving control signal from the processor, when the transceiver is in the reception
When being operated under pattern, the AF panel module is coupling between the antenna and the transceiver, the AF panel module
Decay the interference signal occurred in the reception signal, in response to the processor control signal, the AF panel module
At the channel frequency signal of communication is provided to the transceiver；
It is coupling in first switch between the antenna and the AF panel module and is coupling in the AF panel mould
Second switch between block and the transceiver.
It is worth noting that, wherein described transceiver is configured as receiving the scope of individual channel frequency, and wherein institute
Stating AF panel module includes：
First wave filter, is configured as the interference letter outside decay appears in the range of channels in the reception signal
Number；
Second wave filter, is configured as the interference letter appeared in the reception signal within the range of channels of decaying
Number.
It is worth noting that, wherein described second wave filter includes intermediate-frequency filter, and the immunity module is also wrapped
Include：
First frequency mixer；Intermediate-frequency filter including centre frequency and passband；
Second frequency mixer；And local oscillator, it is configured to provide mixed frequency signal；
It is worth noting that, also including：
First multipole switch and the second multipole switch, wherein second wave filter includes that multiple selectable passages are special
Wave filter, each has the centre frequency corresponding at least one single channel frequency, and first multipole switch and described
Second multipole switch receives the control signal from the processor, for selecting the specific filtering of channel corresponding to channel frequency
Device.
A kind of operating method of wireless telemetering module, including：
Receive the wireless signal of the signal of communication including being sent with channel frequency and with single channel bandwidth；
Control transceiver in a receiving mode and is launched in the range of channels of the single channel frequency including the channel frequency
Pattern is operated；
When the transceiver is operated under the reception pattern, the antenna of the wireless signal and the transmitting-receiving are being received
Coupled interference suppression module between device；
The AF panel module is controlled to appear in the reception signal with response to processor control signal decay
In and fall in the range of channels and the range of channels outside channel width outside interference signal；
The signal of communication of the channel frequency is provided to the transceiver；
To the first switch being coupling between the antenna and the AF panel module and be coupling in it is described interference suppression
Second switch between molding block and the transceiver provides control signal, so that first and second switch is in transceiver
During reception pattern by the AF panel module be coupling in first state between the antenna and the transceiver and
The switching between the second state of the AF panel module is bypassed during the transceiver sending mode.
It is worth noting that, wherein described transceiver is configured as receiving the scope of individual channel frequency, and wherein decline
Subtracting the interference signal includes：
Using the first wave filter with the passband corresponding to the range of channels to it is described reception signal be filtered and
The reception signal is filtered using the second wave filter with the passband narrower than the range of channels.
It is worth noting that, wherein described second wave filter includes the intermediate-frequency filter with passband and centre frequency, and
And methods described also includes：
Produce corresponding to frequency and with one of difference in the channel frequency and the intermediate-frequency filter passband
Local oscillator signal, mixes received signal and local oscillator signal, and mixing is fallen into so that signal of communication is converted to
In intermediate-frequency filter passband in signal output, the mixed signal is exported using the intermediate-frequency filter is filtered and is mixed
Filtered mixed signal output and local oscillator signal is closed, filtered mixed signal is converted back into channel frequency.
Specifically used step of the invention is as follows：Again as shown in Figure 1-Figure 3, implantable medical device (IMD) 10 is illustrated
It is implantation within a patient 8.MD 10 may correspond to the implantable device of many types, including pacemaker, cardioverter-defibrillators,
Elecrocardiogram recorder, hemodynamic monitors, drug efflux pump or any other is implemented with monitoring physiological condition nerve stimulator
And/or the implantable device of delivering treatment.IMD 10 generally includes sealing shell 12, and it is packaged with for control device function
Power supply and electronic circuit (for simplicity not shown).IMD 10 is double including that can be carried out via link 16 and external equipment 18
To the wireless telemetering module 14 of communication.
External equipment 18 can be used for the volume being programmed to the operator scheme in IMD 10 and associated operating parameter
Journey device.Programming data is transferred to IMD 10 by link 16 from external equipment 18.External equipment 18 can be additionally or alternatively
For inquiring IMD 10 to retrieve the data obtained by IMD 10.The data of retrieval can include receipts recorded by IMD or real-time
The physiological data of collection and the data related to IMD10 performances or functional status, such as in the self-diagnostic function phase performed by IMD
Between obtain equipment-related data.Therefore, external equipment 18 can make as such as home monitor or clinical procedure designer
With.External equipment can also include patient-monitoring function, such as electrocardiographic recorder, monitoring of blood pressure etc..In various embodiments, outward
Portion's equipment 18 can program IMD 10, the data that storage or treatment are retrieved from IMD 10, to/from centralized case control's database
Or other networking positions send or receive data, and send or receive alarm or other notices.The overall work(of external equipment 18
Can between the embodiments change, but at least include via the link 16 and IMD for transmitting data to/from IMD 10
10 wireless telemetering communication.
So, external equipment 18 is provided with telemetry module 20, and telemetry module 20 is included for receiving and transmitting a signal to IMD
10 antenna 25, transceiver module 24 (also referred to herein simply as " transceiver ") and processor 22 or other be used for control remote measurement mould
The control circuit of the function of block 20.Antenna 25 is coupled to transceiver module 24 by telemetry module 20 during being additionally included in reception operation
AF panel module (IRM) 30.IRM 30 is coupled to receipts via processor 22 via the switch 26 and 28 that control signal 32 is controlled
Hair device module 24.During operation is sent, processor 22 provides control signal 32, and it causes that switch 26 and 28 is switched to transmission road
Footpath state.IRM 30 is bypassed during operation is sent.Transceiver 24 switchs 26 and antenna via switch 28, transmission channel 34
25 transmission signals of communication.Signal of communication is received by IMD 10 via wireless communication link 16.
During operation is received, processor 22 is configured with control signal 32 and switch 26 and 28 is switched into reception road
Footpath state (as shown in Figure 1).IRM 30 is coupled to antenna 25 and is coupled to transceiver 24 via switch 28 via switch 26.With
This mode, the radio communication that transceiver 24 is received by IMD10 via link 16 and the RX path 36 including IRM 30 sends
Signal.The signal launched by IMD 10 is received by transceiver 24 via antenna 25, switch 26, IRM 30 and switch 28.Communication letter
The AF panel of IRM 30 is experienced number before being received by transceiver 24.As will be described in detail herein, IRM 30 is reduced
24 pairs of sensitiveness of interference of transceiver, so as to extending the dynamic range of telemetry module 20.
Wherein, telemetry module 200 includes antenna 202, IRM 201, preceding IRM switches 204, rear IRM switches 206, processor
210 and transceiver 208.Antenna 202 is used to receiving in the non-NULL sent by another Medical Devices 190 radio frequency (RF) signal and uses
In from transceiver 208 send signal of communication.Processor 210 controls transceiver 208 to be operated with transmission mode or reception pattern.Passing
During defeated pattern, IRM and rear IRM switches 204 and 206 provide control signal 260 to processor 210 forward, to select by bypassing
Transmission path of the switch 204 and 206 of IRM 201 from transceiver RF antenna ports 250 to antenna 202.During reception pattern,
IRM and rear IRM switches 204 and 206 provide control signal 260 to processor 210 forward, to select to pass through IRM modules from antenna 202
201 RX paths for arriving transceiver 208.
Different control methods can be used for the alternate timing between sending mode and reception pattern of control transceiver 208.
In one embodiment, processor 210 controls transceiver 208 to send and receive pattern operation in alternate time block, its
Frame can be further divided into, for sending or receiving data.Processor 210 selects transmission by providing control signal 260
Or RX path so that preceding IRM switchs 204 and rear IRM switches and 206 switches between states, thus select to bypass IRM 201 or
The transmission path of the RX path including IRM 201.
During reception pattern, antenna 202 receives the letter of the expectation signal of communication 195 for including being launched by another equipment 190
Numbers 203, and various interference signals can be included.The signal 203 received at antenna 202 can be referred to as " composite signal ",
Because the interference signal that antenna 202 will receive desired signal of communication 195 and be likely to be present on the frequency spectrum of frequency spectrum.It is desired
Signal of communication 195 is sent from another Medical Devices 190 with the selected channel frequency of the channel width with opposite, narrow
Wireless telemetry signal.Receiving signal 203 can also include with interior interference, i.e., with the noise fallen into the range of communication channel frequencies
Signal, transceiver 208 is configured as operating within the range, and out-of-band interference, i.e., with outside communication channel frequencies scope
Frequency noise signal.If for example, telemetry module 200 is configured as being operated in the scope of 401 to 406MHz, including led to
The scope of MEDS and MICS channels for often being used in Medical Devices, is that fall in the range of 401 to 406MHz with interior interference
A little interference, out-of-band interference is the interference fallen outside 401 to 406MHz scopes.Therefore, although represented with " odd number " herein
" signal " 203, it is realized that " signal " 203 is typically included the frequency spectrum of signal frequency, including desired communication signal frequency
The frequency disturbed with any band and out-of-band.
These band and out-of-bands interference (being also generally referred to herein as herein " interference signal ") may damage transceiver 208
Sensitivity, particularly such as cross over room (such as across about 3 meters or farther) perform apart from remote measurement when.In relatively short distance
Place, is, for example, less than one meter, and low-dynamic range receiver may be allowed to undesirable interference signal.However, at bigger distance, leading to
The transmission signal of more power is often needed to be extended interference source.In order to avoid needing higher power transmission signal while still
So allow to be realized in telemetry module 200 with the interference signal that decays with low-dynamic range receiver success communication, IRM 201, together
When there are inapparent net impacts to the signal of communication 195 that receives.Therefore, IRM as described herein 201 is applied to low dynamic
State scope telemetry module is also suitable for of a relatively high dynamic range telemetry module, without changing transceiver in itself.
IRM 201 includes pre-filter 220, low-noise amplifier 222, optional attenuator 224, image filter
226, pre- frequency mixer 228, intermediate frequency (IF) wave filter 230, rear frequency mixer 232, gain control 240, local oscillator 234, loop
Wave filter 236 and synthesizer 238.Pre-filter 220 is provided as bandpass filter, is chosen so as to by corresponding to will be by
The frequency range of the scope of the channel of operation frequency that transceiver 250 is received.Pre-filter 220 will decay out-of-band interference, but
Do not significantly change with interior interference.In one embodiment, the transmission of preselection filter 220 and MEDS and MICS RF range of channels
The associated frequency in the range of 401 to 406MHz.
The insertion that output of the low-noise amplifier 222 by amplifying pre-filter 220 reduces signal of communication 195 is damaged
Consumption.Image filter 226 suppresses undesirable interference signal before mixing.Image filter 226 is removed in superhet scheme
The middle signal 203 that will receive is mixed into after intermediate frequency the interference signal that can be produced and expect the identical intermediate frequency of signal of communication 195.
Therefore, pre-filter 220 and image filter 226 generally removal is present in the out-of-band interference received in signal 203, while
Transmission signal of communication 195 and be present in receive signal 203 in it is any with interior interference.
The output of the hybrid image filtering device 226 of pre- frequency mixer 228 is converted into corresponding to IF wave filters with by signal of communication 195
The intermediate frequency of 230 centre frequency.In one embodiment, pre- frequency mixer 228 is implemented as upwards becoming signal of communication 195
Frequency arrives intermediate frequency higher.Or, pre- frequency mixer 228 is implemented as signal of communication 195 to being down-converted to relatively low intermediate frequency.Cause
This, the centre frequency of IF wave filters 230 can be higher or lower than the channel frequency of signal of communication 195.Local oscillator 234 is adjusted
It is humorous to provide signal frequency, the signal frequency is communication signal channel frequency and IF filter centre frequencies and/or poor.
Be mixed for the output of image filter 226 and local oscillator signal to produce and will lead to including original by premixed device 228
The signal of letter signaling channel frequency, oscillator signal frequency and the communication signal channel frequency for being transformed into IF filter centers is frequently
Rate, and other undesirable signal frequencies related to interference source.
If for example, signal of communication 195 is sent with the channel frequency of 403MHz, and IF wave filters 230 have 80MHz's
Centre frequency, then local oscillator 234 can be with tuned with to pre- frequency mixer 228 offer 483MHz signals or 323MHz signals.
In to down-conversion operation, pre- frequency mixer 228 will be produced using 483MHz local oscillator signals and filtered with the IF in 80MHz
The mixed frequency signal of the component at ripple device centre frequency, it is equal to local oscillator frequency 483MHz and is with communication signal channel frequency
The difference of 403MHz.
In alternative embodiments, local oscillator 234 is tuned provides signal with to pre- frequency mixer 228, and the signal causes
Mixed frequency signal with the centre frequency of IF wave filters 230 offsets.The skew mixed signal is used to increase expects the one of signal of communication
AF panel on side.Edge offset from desired signal of communication to IF filter passbands, and with desired signal of communication
The interference signal occurred at adjacent frequency deviates the bigger skew of IF filter centre frequencies, further to the suppression of IF wave filters
Part processed.The offset mixed signal provided by local oscillator 234 is desired, such as when interference signal is in required communication letter
When the side of number frequency occurs with high probability, i.e., in upper frequency or in the frequency lower than required signal of communication.
Local oscillator 234 is tuned to be provided with by the control signal received from loop filter 236 and synthesizer 238
Desired mixing frequencies.Synthesizer 238 receives control signal 242 and reference clock signal 244 from processor 210, for adjusting
Whole local oscillator 234.When transceiver 208 is operated in the receiving mode, control signal 242 transmits selected communication channel
Frequency.Be locked in local oscillator frequency for signal of communication 195 to be upconverted or to being down-converted to IF by synthesizer 238
The appropriate frequency of filter centre frequency.It should be understood that for signal of communication 195 to be transformed into IF filter centre frequencies really
Wood trimmer oscillator frequency generally corresponds to the multiple of the reference clock signal 244 provided by processor 210.
The mixed frequency signal output of pre- frequency mixer 228 is filtered by IF wave filters 230.IF wave filters 230 have at least with communication
Signaling channel bandwidth passband equally wide.IF wave filters 230 can represent single filter or be selected to provide desired frequency
Rate is responded, particularly desired centre frequency, the tandem compound of the wave filter of the signal attenuation outside passband width and passband.IF is filtered
Therefore ripple device 230 removes the interference signal outside the individual channel bandwidth, is included in before being mixed by frequency mixer 228 and falls into transmitting-receiving
The interior interference signal of band in the range of device communication channel.
In superheterodyne receiver, the IF signal outputs of IF wave filters 230 are generally exaggerated and are supplied in IF frequencies
The demodulator of operation.Conversely, IRM 201 includes rear frequency mixer 232, the output of IF wave filters is converted back signal of communication 195 by it
Original channel frequency.Frequency mixer 232 also receives the input from local oscillator 234 afterwards, for fundamentally cancelling by being mixed in advance
The mixing operation that device 228 is performed.If the docking of pre- frequency mixer 228 collection of letters number 203 is upconverted, 232 pairs, rear frequency mixer
The output of IF wave filters is carried out to down coversion, and vice versa.By this way, the output of rear frequency mixer 232 includes converting back its original
The signal of communication 195 of beginning channel frequency, will be by IF wave filters but be present in the band and out-of-band interference received in signal 203
230 removals decay.
In the example being given above, receiving signal 203 includes the signal of communication sent with the channel frequency of 403MHz
195.Premixed device 228 is filtered 403MHz signals to the IF for being down-converted to 80MHz using the local oscillator frequency signal of 483MHz
Ripple device centre frequency.Afterwards frequency mixer 232 then using 483MHz local oscillator frequency by the IF wave filters with 80MHz
230 output upconverts to the expectation channel frequency of 403MHz.
The output of frequency mixer 232 afterwards is provided to gain 240. gains of control control 240 and may be implemented as from processor
210 variable gain amplifiers for receiving automatic level controling signal 262.The operation of gain control 240 is with the communication of transceiver 208
The uniform amplitude of IRM output signals 270 is maintained in range of channels.Gain control 240 is above carried in the frequency and operation temperature of change
For consistent gain, and amplitude variations are compensated, its net gain that can be included in the concatenate block in IRM 201 or net
Loss.Thus IRM output signals 270 are provided to transceiver 208, and including with fixed gain (for example unit gain or
Other selected net gains or loss) signal of communication 195, and keep its original channel frequency.It should be appreciated that gain control
System 240 can be realized at the other positions in IRM 201 rather than after rear blender 232.However, it is expected that by
At the end of the cascade of the components of IRM 201, the signal of communication 195 for realizing gain control 240 to be best accomplished by channel range
Uniform gain.
Transceiver 208 receives IRM output signals 270, without any amplitude or frequency offset signals or any other
Adjustment is changed.In other words, it is transparent that the AF panel for being performed by IRM 201 is processed for transceiver 208.IRM is exported
Signal 270 is provided to transceiver 208, and the wherein original signal amplitude and frequency of signal of communication 195 is substantially retained, as
Signal of communication 195 is directly delivered to transceiver 208 from antenna 202, but with believing with out-of-band interference in removal or attenuation band
Number the main distinction.Therefore, telemetry module 200 more tolerates interference, it is allowed to which transceiver 208 is used as HDR receiver, and
Transceiver 208 itself is not altered or modified.IRM 201 is considered modular member because it can be added to it is distant
Before the existing transceiver 208 surveyed in module 200, the design without transceiver 208 is altered or modified.
The permission local oscillator 234 of control signal 242 from processor 210 is locked onto to be believed corresponding to across operation communication
The different frequency of the different channels of road scope.In this way it is possible to adjust IRM201 with the scope of communication channel from connecing
Interference is removed in the collection of letters number 203.Section local oscillator 234 is lowered by the control of processor 210, telemetry module 200 can be with
Scan the single channel frequency in the scope of channel of operation.Controlled variable signal 242 allows the transmission of IRM 201 to correspond to across behaviour
Make the signal of communication of the scope of the single channel frequency of communication channel scope.When transceiver 208 changes channel, such as in response to logical
Letter mistake, IRM 201 can immediately be adjusted the corresponding signal of communication of channel to transmit with newly select.There is cochannel
Communication mistake may occur during interference signal.By moving to different channels, fall in the channel width of previous selection that
Decayed by IRM 201 with interior interference signal a bit.
Transceiver 208 receives IRM output signals 270, and the signal that will be received is supplied to processor 210.Processor 210
The data that will be received are sent to HPI 280, so that the main frame Medical Devices for incorporating telemetry module 200 are used.Receive
Data volume for using when can include by host device in control main frame functions of the equipments or for being transferred to another host device
Number of passes evidence.Received data can include instruction host device from memory search data or in real time by telemetry module
200 inquiry commands for being sent to request Medical Devices 190 or computer network.
Flow chart 300 is intended to illustrate the feature operation of telemetry module, and is not necessarily to be construed as reflection and realizes illustrative side
The particular form of software necessary to method or hardware.Believe the particular form of hardware by particular system mainly by being used in equipment
Framework and equipment using the specific method of telemetering determine.In the case where this disclosure is given, in this area skill
Analog and/or digital hardware is provided in the limit of power of art personnel, software and/or firmware are with real in any modern medical service device
Function described in occurrence context.The method described with reference to flow chart given herein can at least in part can in computer
Read to realize including the instruction for making programmable processor perform described method in medium." computer-readable medium " includes
But it is not limited to any volatibility or non-volatile media, such as RAM, ROM, CD-ROM, NVRAM, EEPROM, flash memory etc..Instruction
One or more software modules are may be implemented as, it can combine execution by their own or with other software.
In frame 302, wireless telemetry signal is received by the antenna of telemetry module.Referred to herein as " signal of communication "
Wireless telemetry signal experiences preselected filtering in frame 304, and image filtering is experienced in frame 306.It is such as described in conjunction with Figure 2 above,
Preselected filtering and image filtering removal or the outer interference signal of attenuation band.
In frame 308, filtered signal is translated or " mixing " arrives intermediate frequency.Signal conversion can include respectively believing communication
Number frequency upconversion is down-converted to higher or lower IF.In frame 310, using with least with desired communication channel bandwidth
The IF wave filters of the same width but the bandwidth narrower than the operational frequency range including multiple channels are filtered come the signal to conversion
Ripple.Then, in frame 312, the IF signals of filtering are translated or " mixing " returns original communication channel frequency.
(for example, using variable gain amplifier and/or low-noise amplifier) Gain tuning can be performed at frame 316,
There is fixed gain (such as unit gain or other selected net gains or damage relative to the signal of communication for receiving to provide
Consumption) output signal.The amplitude of output signal is maintained at desired communication channel amplitude by gain-adjusted.By this way, exist
Be supplied at frame 320 receiver output signal be characterised by frequency and amplitude be approximately equal to expected communication signal frequency and
Amplitude, but band and out-of-band interference is all removed or decays.
By way of more than, wireless telemetering module provided by the present invention and its operating method, by wireless telemetering mould
Block and interference suffered in associated method suppression reception signal, it is ensured that the use quality of implantable medical device, prolong
The service life of equipment has been grown, the health of human body has been also ensure that.
Above-described is only the preferred embodiment of wireless telemetering module disclosed in this invention and its operating method, should
When pointing out, for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make
Some deformations and improvement, these belong to protection scope of the present invention.
Claims (7)
1. a kind of wireless telemetering module, including implantable medical device and telemetry module, the telemetry module are implantable with described
Medical treatment device is realized connecting by link, and wherein telemetry module includes：
Antenna, is configured as the signal of communication for receiving with channel frequency and having channel width；
Transceiver, is configured as being operated in the range of channels of the single channel frequency including the channel frequency；
Processor, it is coupled to the transceiver and is configured as controlling the transceiver under reception pattern and sending mode
Operation；
AF panel module, is configured as receiving control signal from the processor, when the transceiver is in the reception pattern
During lower operation, the AF panel module is coupling between the antenna and the transceiver, the AF panel module decay
The interference signal occurred in the reception signal, in response to the processor control signal, the AF panel module is in institute
State and provide the signal of communication to the transceiver at channel frequency；
Be coupling in first switch between the antenna and the AF panel module and be coupling in the AF panel module and
Second switch between the transceiver.
2. wireless telemetering module according to claim 1, it is characterised in that wherein described transceiver is configured as receiving single
The scope of individual channel frequency, and wherein described AF panel module includes：
First wave filter, is configured as the interference signal outside decay appears in the range of channels in the reception signal；
Second wave filter, is configured as the interference signal appeared in the reception signal within the range of channels that decays.
3. the wireless telemetering module according to Patent request 2, it is characterised in that wherein described second wave filter includes intermediate frequency filter
Ripple device, and the immunity module also includes：
First frequency mixer；Intermediate-frequency filter including centre frequency and passband；
Second frequency mixer；And local oscillator, it is configured to provide mixed frequency signal.
4. wireless telemetering module according to claim 2, it is characterised in that also include：
First multipole switch and the second multipole switch, wherein second wave filter includes multiple selectable special filtering of passage
Device, each has the centre frequency corresponding at least one single channel frequency, and first multipole switch and described second
Multipole switch receives the control signal from the processor, for selecting the channel specific filter corresponding to channel frequency.
5. a kind of operating method of wireless telemetering module, it is characterised in that including：
Receive the wireless signal of the signal of communication including being sent with channel frequency and with single channel bandwidth；
Control transceiver in the range of channels of the single channel frequency including the channel frequency in a receiving mode and emission mode
Operation；
When the transceiver is operated under the reception pattern, receive the wireless signal antenna and the transceiver it
Between coupled interference suppression module；
Control the AF panel module with response to the processor control signal decay appear in it is described reception signal in simultaneously
Interference signal outside the channel width fallen in the range of channels and outside the range of channels；
The signal of communication of the channel frequency is provided to the transceiver；
To the first switch being coupling between the antenna and the AF panel module and it is coupling in the AF panel mould
Second switch between block and the transceiver provides control signal, so that first and second switch is received in transceiver
The AF panel module is coupling in first state between the antenna and the transceiver and described during pattern
The switching between the second state of the AF panel module is bypassed during transceiver sending mode.
6. the operating method of wireless telemetering module according to claim 5, it is characterised in that wherein described transceiver is matched somebody with somebody
The scope for receiving individual channel frequency is set to, and the interference signal that wherein decays includes：
The reception signal is filtered and used using the first wave filter with the passband corresponding to the range of channels
The second wave filter with the passband narrower than the range of channels is filtered to the reception signal.
7. the operating method of wireless telemetering module according to claim 6, it is characterised in that wherein described second wave filter
Also include including the intermediate-frequency filter with passband and centre frequency, and methods described：
Produce corresponding to the frequency and and poor the machine of one of them in the channel frequency and the intermediate-frequency filter passband
Oscillator signal, mixes received signal and local oscillator signal, and mixed signal is fallen into so that signal of communication is converted to
In intermediate-frequency filter passband in output, the mixed signal is exported using the intermediate-frequency filter is filtered and is mixed warp
The mixed signal output of filtering and local oscillator signal, channel frequency is converted back by filtered mixed signal.
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| CN201710062540.6A CN106817147A (en) | 2017-01-23 | 2017-01-23 | Wireless telemetering module and its operating method |
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| CN201710062540.6A CN106817147A (en) | 2017-01-23 | 2017-01-23 | Wireless telemetering module and its operating method |
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|---|---|---|---|---|
| US6115636A (en) * | 1998-12-22 | 2000-09-05 | Medtronic, Inc. | Telemetry for implantable devices using the body as an antenna |
| US20020045920A1 (en) * | 2000-08-26 | 2002-04-18 | Medtronic, Inc. | Implanted medical device telemetry using integrated thin film bulk acoustic resonator filtering |
| US20100114243A1 (en) * | 2008-10-30 | 2010-05-06 | Medtronic, Inc. | Preselector interference rejection and dynamic range extension |
| US20120109261A1 (en) * | 2010-10-29 | 2012-05-03 | Medtronic, Inc. | Protecting an implantable medical device from effects caused by an interfering radiation field |
| CN104467994A (en) * | 2013-10-11 | 2015-03-25 | 优倍快网络公司 | Wireless radio system optimization by persistent spectrum analysis |
| CN206759445U (en) * | 2017-01-23 | 2017-12-15 | 武汉市瑞达源科技有限公司 | Wireless Telemetry Module |
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2017
- 2017-01-23 CN CN201710062540.6A patent/CN106817147A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6115636A (en) * | 1998-12-22 | 2000-09-05 | Medtronic, Inc. | Telemetry for implantable devices using the body as an antenna |
| US20020045920A1 (en) * | 2000-08-26 | 2002-04-18 | Medtronic, Inc. | Implanted medical device telemetry using integrated thin film bulk acoustic resonator filtering |
| US20100114243A1 (en) * | 2008-10-30 | 2010-05-06 | Medtronic, Inc. | Preselector interference rejection and dynamic range extension |
| US20120109261A1 (en) * | 2010-10-29 | 2012-05-03 | Medtronic, Inc. | Protecting an implantable medical device from effects caused by an interfering radiation field |
| CN104467994A (en) * | 2013-10-11 | 2015-03-25 | 优倍快网络公司 | Wireless radio system optimization by persistent spectrum analysis |
| CN206759445U (en) * | 2017-01-23 | 2017-12-15 | 武汉市瑞达源科技有限公司 | Wireless Telemetry Module |
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Effective date of registration: 20200907 Address after: No.2101, building 5, xiangxieyuan, coastal Lishui Jiayuan, No.8 Daojiao Road, Daojiao Town, Dongguan City, Guangdong Province Applicant after: Zhong Xin Address before: 436070 Optics Valley joint development science and Technology City, Gedian Development Zone, Huarong District, Hubei, Ezhou C3-6 Applicant before: WISEHEALTH, Ltd. |
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Application publication date: 20170609 |