CN107749513A - Implantable medical device and system - Google Patents
Implantable medical device and system Download PDFInfo
- Publication number
- CN107749513A CN107749513A CN201711125035.8A CN201711125035A CN107749513A CN 107749513 A CN107749513 A CN 107749513A CN 201711125035 A CN201711125035 A CN 201711125035A CN 107749513 A CN107749513 A CN 107749513A
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- frequency range
- medical device
- implantable medical
- distributing point
- free end
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- PEZNEXFPRSOYPL-UHFFFAOYSA-N (bis(trifluoroacetoxy)iodo)benzene Chemical compound FC(F)(F)C(=O)OI(OC(=O)C(F)(F)F)C1=CC=CC=C1 PEZNEXFPRSOYPL-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 230000005855 radiation Effects 0.000 description 14
- 238000004891 communication Methods 0.000 description 7
- 230000006872 improvement Effects 0.000 description 6
- 230000000638 stimulation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000001537 neural effect Effects 0.000 description 4
- 238000005424 photoluminescence Methods 0.000 description 4
- 210000004556 brain Anatomy 0.000 description 3
- 239000007943 implant Substances 0.000 description 3
- 230000005404 monopole Effects 0.000 description 3
- 210000005036 nerve Anatomy 0.000 description 3
- 210000001367 artery Anatomy 0.000 description 2
- 230000000747 cardiac effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 210000003792 cranial nerve Anatomy 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000008393 encapsulating agent Substances 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000005549 size reduction Methods 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 210000003169 central nervous system Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000007383 nerve stimulation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 210000001186 vagus nerve Anatomy 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/273—Adaptation for carrying or wearing by persons or animals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/3605—Implantable neurostimulators for stimulating central or peripheral nerve system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/362—Heart stimulators
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/372—Arrangements in connection with the implantation of stimulators
- A61N1/37211—Means for communicating with stimulators
- A61N1/37217—Means for communicating with stimulators characterised by the communication link, e.g. acoustic or tactile
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
- H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
- H01Q5/364—Creating multiple current paths
Landscapes
- Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Radiology & Medical Imaging (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Neurology (AREA)
- Neurosurgery (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Cardiology (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Electrotherapy Devices (AREA)
Abstract
Present invention is disclosed a kind of implantable medical device and system, including radio antenna, radio antenna is the PIFA antennas that can be selectively operable in the first frequency range and/or the second frequency range, it includes radiating element, distributing point and short dot, radiating element includes the first current path length and the second current path length, wherein, first current path length corresponds to a quarter of first frequency range human body medium's wavelength, and the second current path length corresponds to a quarter of second frequency range human body medium's wavelength.
Description
Technical field
The invention belongs to implantable medical device technical field, and in particular to a kind of implanted with wireless dual-band antenna
Medical system.
Background technology
Implanted medical system generally includes implantable neural electrical stimulator（Including lesions located in deep brain DBS, implanted
Cortex stimulates CNS, implanted spinal cord stimulation trial SCS, implanted Sacral nerve electrical stimulation SNS, implanted vagus nerve electro photoluminescence
VNS etc.）, implantable cardiac electric stimulation（It is commonly called as pacemaker）, implanted drug infusion system（IDDS）Deng.
By taking implantable neural electrical stimulator as an example, the main impulse generator for including implanting（That is implantable nerve
Stimulator）, electrode and external controller.Wherein, impulse generator is connected by extension wire with electrode, so as to by arteries and veins
Rush pulse caused by generator and be transferred to electrode, pulse signal caused by impulse generator is transmitted to specific neural target by electrode
Point carries out electro photoluminescence, so that function of human body returns to the state of normal operation.External controller includes doctor's program controller, patient
Controller.
External controller can be communicated by wireless communications mode with impulse generator.Radio antenna is arranged at arteries and veins
Rush in generator body.After impulse generator implantation, surrounded by biological tissue or tissue fluid, these surrounds compare extrapersonal space
With relatively high dielectric constant, wireless signal is caused to be lost so that being implanted into the transmission of wireless signals efficiency of equipment reduces.
Generally, the length of antenna, such as antenna length for monopole antenna can be 1/4 in be implanted into Biomedia
The odd-multiple of wavelength, and be implanted into equipment volume need it is small as best one can, in housing space arrangement cause to challenge.
Moreover, the RF front-end circuit mismatch of pcb board is, it is necessary to configure in the characteristic impedance of existing antenna and impulse generator
Radio-frequency front-end match circuit, the match circuit can adjust the input impedance of antenna, to provide in the specific of particular frequency range
Input impedance in the range of input impedance.Match circuit is inevitably present loss, causes the radiation efficiency of antenna and reduces.
On the other hand, MICS（Medical Implant Communications series）Refer to frequency range 402MHz-
405MHz, it is the communications band that implantable medical devices are general in the world for the communication in animal and human body, the letter of the frequency range
Propagation attenuation degree is small number in vivo.Corresponding thereto, ISM (industrial, scientific and
Medical) frequency range belongs to free frequency range, available for wireless telecommunications such as bluetooths in 2.4-2.48GHz.Existing implantable medical is set
In standby, radio antenna is only applicable to MICS frequency ranges.
The content of the invention
It is an object of the invention to solve, the radio antenna size of implantable medical device is big, radiation efficiency is low asks
Topic.
For achieving the above object, the present invention provides a kind of implantable medical device, including housing, is arranged in housing
Pcb board, the connecting portion that is connected with housing, connecting portion includes radio antenna and filler, and radio antenna is can
The PIFA antennas of the first frequency range and/or the second frequency range are selectively operable in, it includes：
Short dot, it is electrically connected with the housing,
Distributing point, it is electrically connected with the pcb board, and the distributing point connects short dot by short-circuit minor matters,
Radiating element, it is connected with the distributing point, it includes the first free end and the second free end, the distributing point to first
The current path length of free end is the first distance, the current path length of the distributing point to the second free end for second away from
From,
Wherein, the first distance corresponds to a quarter of first frequency range human body medium's wavelength, and second distance corresponds to the second frequency range
The a quarter of human body medium's wavelength.
As the further improvement of an embodiment of the present invention, the first frequency range is MICS frequency ranges.
As the further improvement of an embodiment of the present invention, the second frequency range is ISM band.
As the further improvement of an embodiment of the present invention, the first distance is 5-7 times of second distance.
As the further improvement of an embodiment of the present invention, pcb board configures feed through connector to be connected with distributing point.
As the further improvement of an embodiment of the present invention, pass through feed metal silk between distributing point and feed through connector
It is connected, the feed metal silk is the one or more in platinum wire, copper wire, filamentary silver.
As the further improvement of an embodiment of the present invention, short-circuit minor matters are formed in one with radiating element, or short
Road minor matters are independent wire
To achieve the above object, an embodiment of the present invention provides a kind of Implanted medical system, including is arranged at external control
Molding block, the power supply being connected with control module, and any of the above-described implantable medical device, control module and implantable medical
Equipment is associated by radio antenna.
To achieve the above object, an embodiment of the present invention provides a kind of implantable medical device, including radio communication day
Line, radio antenna are the PIFA antennas that can be selectively operable in the first frequency range and/or the second frequency range, and it includes radiation
Unit, distributing point and short dot, radiating element include the first free end and the second free end, electricity of the distributing point to the first free end
Stream electrical path length is the first distance, and the current path length of distributing point to the second free end is second distance, wherein, the first distance
Corresponding to a quarter of first frequency range human body medium's wavelength, second distance corresponds to four points of second frequency range human body medium's wavelength
One of.
Compared with prior art, PIFA antennas of the invention, its equivalent aerial size are twice of monopole antenna, can be than existing
There is monopole antenna size reduction half, the volume of internal impulse generator can be reduced；It reduces damage without match circuit simultaneously
Consumption, improves radiation efficiency；It is the nothing of implantable medical device and other electronic equipments also, it may operate in two-band
Line connection provides extension mouth.
Brief description of the drawings
Fig. 1 is that implanted brain deep nerve electric stimulation of the present invention implants the positioning schematic diagram of part；
Fig. 2 is the structural representation of the embodiment of Implanted medical system one of the present invention；
Fig. 3 is the antenna structure view of the embodiment of implantable medical device one of the present invention;
Fig. 4 is the clawback damage curve figure of the embodiment of implantable medical device one of the present invention；
Fig. 5 is antenna pattern of the embodiment of implantable medical device one of the present invention in ISM band horizontal direction；
Fig. 6 is antenna pattern of the embodiment of implantable medical device one of the present invention in ISM band vertical direction；
Fig. 7 is antenna pattern of the embodiment of implantable medical device one of the present invention in MICS frequency range horizontal directions；
Fig. 8 is antenna pattern of the embodiment of implantable medical device one of the present invention in MICS frequency range vertical direction.
Embodiment
Below with reference to embodiment shown in the drawings, the present invention will be described in detail.But these embodiments are simultaneously
The present invention is not limited, structure that one of ordinary skill in the art is made according to these embodiments, method or functionally
Conversion is all contained in protection scope of the present invention.
In embodiments of the present invention, to the implantable medical of the present invention by taking implanted cranial nerve electric stimulation as an example
Equipment and system do specific explaination, but it should explanation, involved skill spirit can be with embodiment disclosed below
On the implantable medical device and system for alternatively being used other forms, exemplarily, such as implantable cardiac electro photoluminescence
System.
Fig. 1 schematically shows the part that implanted cranial nerve stimulation system implants, including signal hair
Raw device 10, electrode 20, in addition to external control module.In this example, signal generator sends pulse, to carry out electricity to human body
Stimulate.Signal generator 10 is connected by extension wire 30 with electrode 20, so as to by pulse caused by signal generator 10
Signal is transferred to electrode 20, and signal is transmitted to neuronal target in specific brain regions by output electrode contact and carries out electro photoluminescence, so as to make one
State of the physical efficiency recovery to normal operation.
Join Fig. 2, Implanted medical system is connected including external control module with power supply.It is program control that control module includes doctor
Instrument and patient controller.Wherein, patient controller is to be used for for what patient was equipped with according to the situation controlling switch or tune of oneself
The device of the output parameter of internal impulse generator is saved, patient controller generally only can be in the regulation set by doctor's program control instrument
In the range of voluntarily adjust.Doctor's program control instrument is the output ginseng that doctor is used for adjusting internal impulse generator according to patient's condition monitoring
Several devices, usual doctor's program control instrument can be used to control multiple impulse generators.Patient controller and doctor's program control instrument can
Communicated by wireless communications mode with impulse generator.
Join Fig. 3, signal generator 10 includes housing 40.Battery and at least one pcb board are set in housing 40（It is not shown）.
Connecting portion is connected with housing 40, and shell is set on the outside of connecting portion（It is not shown）To be sealed against.Connecting portion is used to hold
Receive radio antenna, multiple connection components 60 and sealing filler, radio antenna and connection component 60 respectively with pcb board
It is electrically connected with.Connecting portion can protect the component in it from exposure in tissue or body fluid.
Radio antenna is planar inverted-F antenna（plannar inverted-F antenna, PIFA）, including a spoke
Penetrate unit 51, a distributing point 53, a short-circuit minor matters 55, a short dot 54.
Radiating element 51, which wriggles, to be arranged, to adapt to narrow compact arrangement space in connecting portion.Exemplary, radiating element
51 are arranged like clip shape, and mechanical stamping has height into two stage portions 51a, 51b between stage portion 51a and 51b
Difference.In the present invention, the shape of radiating element 51 is not using this example as limitation, the difference set in response to connecting portion inside, and radiation is single
The shape of member 51 can make adaptive change.
Radiating element 51 has two extending ends 511,512.Wherein, electric current of the extending end 511 apart from distributing point 53
Path length is L1, extending end 512 is L apart from the current path length of distributing point 532, L1More than L2.In this way, radiating element
51 when being excited in the presence of the current path of two different lengths, shorter current path L2Make antenna that there is relatively low resonance frequency
Rate, longer current path L1Make antenna that there is higher resonant frequency.The feed that antenna can be transmitted according to distributing point 53
One of them frequency is operated in signal-selectivity or operates in two frequencies simultaneously.
Preferably, current path L1Length be MICS frequency ranges（About 402-405MHz）The four of human body medium's wavelength/
One, current path L2Length be ISM（2.4GHz）The a quarter of human body medium's wavelength, i.e. L1Length is about L2The 5-7 of length
Times.In this way, implantable medical device is operable with MICS frequency ranges and/or ISM band.
Radiating element 51 is coupled to ground plane by short-circuit minor matters 55, and short dot 54, short dot 54 are formed in ground plane
In on housing 40.Short-circuit minor matters 55 can be an one metal wire, such as platinum wire, one end are welded to short dot, the other end and spoke
Penetrate unit 51 to be weldingly connected, i.e., radio frequency is grounded；It can also be formed with the one of radiating element 51 through mechanical stamping.
Distributing point 53 can also be located at radiating element as shown in Figure 3 between radiating element 51 and short dot 55
51 and the side of short dot 55（It is not shown）.Distributing point 53 couples with radiating element 51 and passes through feed through connector with electronic installation
It is connected, the signal of electronic installation is sent out by radiating element 51, while the outer signals that radiating element 51 is received
Electronic installation is passed back also by distributing point 53.Electronic installation is, for example, the pcb board in housing 40, and feed through connector is located at
Pcb board.Feed metal silk is set between distributing point 53 and feed through connector, and feed metal silk one end is connected with distributing point, another
End passes through feed through connector connecting PCB board.Exemplary, feed metal silk uses platinum wire, and it is by RF signal from pcb board
Guide on distributing point 53, and the external signal that radiating element 51 receives is led back on pcb board from distributing point 53.Feed metal silk
Can be the one or more in platinum wire, copper wire, filamentary silver.
Encapsulant is epoxy resin.Epoxy resin not only has biocompatibility, and has high-k, low electromagnetism
The characteristics of loss.Encapsulant surrounds radio antenna, to realize the miniaturization of antenna and high efficiency.
The characteristic impedance of PIFA antennas can realize very good impedance matching with the RF front-end circuit of pcb board, can save
Radio-frequency front-end match circuit of the prior art, eliminates the loss of this partial circuit, avoids the mismatch loss of unipole antenna.
Present invention earth point more than unipole antenna, a radiation minor matters, its equivalent aerial more than single-band antenna
Size is twice of unipole antenna, can be doubled than existing unipole antenna size reduction half, radiation efficiency.
Join Fig. 4, the beamwidth of antenna of the invention covering 387-420MHz band limits, frequency impedance match situation is about
4.05MHz reaches best, clawback loss S11 about -25.5DB, meets that the design of MICS frequency ranges requires；The antenna of the present invention is same
When cover 2.4-2.555GHz band limits, frequency impedance match situation reaches best in about 2.47GH, and clawback loss S11 is about
For -38DB, meet the design requirement of ISM band.The antenna volume is small, is easy to integrated and processes, inexpensive, can be applied to
In the communication equipment terminal of MICS frequency ranges and ISM band.
Join Fig. 5, the radiation of the antenna structure of the embodiment of implantable medical device one of the present invention in ISM band horizontal direction
Directional diagram, antenna are spent in the horizontal direction -60 of 2.4GH frequency ranges, 0 degree and 60 degree of radiation direction gains respectively -30.1663DB, -
27.2548DB and -28.2538DB, thus antenna this -60 degree to radiance in 60 degree of this horizontal direction angular ranges compared with
It is good so that antenna performance can be more easily by handling capacity certification.
Join Fig. 6, the embodiment antenna structure of implantable medical device one of the present invention is in the radiation side of ISM band vertical direction
Xiang Tu, antenna are spent in the vertical direction -60 of 2,4GH frequency ranges, 0 degree and 60 degree of radiation direction gains respectively -26.8750DB, -
27.2549DB and -28.2736DB, thus antenna this -60 degree to radiance in 60 degree of this vertical direction angular ranges compared with
It is good so that antenna performance can be more easily by handling capacity certification.
Join Fig. 7, radiation of the embodiment antenna structure of implantable medical device one of the present invention in MICS frequency range horizontal directions
Directional diagram；Antenna is spent in the horizontal direction -60 of 403MHz frequency ranges, 0 degree and 60 degree of directive gains respectively -31.7899DB, -
28.2849DB and -29.2113DB, thus antenna this -60 degree to radiance in 60 degree of this horizontal direction angular ranges compared with
It is good so that antenna performance can be more easily by handling capacity certification.
Join Fig. 8, radiation of the embodiment antenna structure of implantable medical device one of the present invention in MICS frequency range vertical direction
Directional diagram.Antenna is spent in the vertical direction -60 of 403MHz frequency ranges, 0 degree and 60 degree of radiation direction gain respectively -
27.2823DB, -28.2849DB and -28.7130DB, therefore antenna is in this -60 degree to 60 degree of this vertical direction angular ranges
Interior radiance is preferable so that antenna performance can be more easily by handling capacity certification.
It should be appreciated that although the present specification is described in terms of embodiments, not each embodiment only includes one
Individual independent technical scheme, this narrating mode of specification is only that those skilled in the art will should say for clarity
For bright book as an entirety, the technical scheme in each embodiment may also be suitably combined to form those skilled in the art can
With the other embodiment of understanding.
Those listed above is a series of to be described in detail only for feasibility embodiment of the invention specifically
Bright, they simultaneously are not used to limit the scope of the invention, all equivalent implementations made without departing from skill spirit of the present invention
Or change should be included in the scope of the protection.
Claims (9)
1. a kind of implantable medical device, including housing, the pcb board being arranged in housing, the connecting portion that is connected with the housing,
The connecting portion includes radio antenna and filler, it is characterised in that：
The radio antenna is the PIFA antennas that can be selectively operable in the first frequency range and/or the second frequency range, and it is wrapped
Include
Short dot, it is electrically connected with the housing,
Distributing point, it is electrically connected with the pcb board, and the distributing point connects short dot by short-circuit minor matters,
Radiating element, it is connected with the distributing point, it includes the first free end and the second free end, the distributing point to first
The current path length of free end is the first distance, the current path length of the distributing point to the second free end for second away from
From,
Wherein, the first distance corresponds to a quarter of first frequency range human body medium's wavelength, and second distance corresponds to the second frequency range
The a quarter of human body medium's wavelength.
2. implantable medical device according to claim 1, it is characterised in that the first frequency range is MICS frequency ranges.
3. implantable medical device according to claim 1, it is characterised in that the second frequency range is ISM band.
4. implantable medical device according to claim 1, it is characterised in that the first distance is 5-7 times of second distance.
5. implantable medical device according to claim 1, it is characterised in that pcb board configure feed through connector with feedback
Electricity point connection.
6. implantable medical device according to claim 5, it is characterised in that pass through between distributing point and feed through connector
Feed metal silk is connected, and the feed metal silk is the one or more in platinum wire, copper wire, filamentary silver.
7. implantable medical device according to claim 1, it is characterised in that short-circuit minor matters are integrated into radiating element
Type, or short-circuit minor matters are independent wire.
8. a kind of implantable medical device, it is characterised in that including radio antenna, the radio antenna is to select
The PIFA antennas of the first frequency range and/or the second frequency range are operated in selecting property, it includes radiating element, distributing point and short dot,
The radiating element includes the first free end and the second free end, the current path length of the distributing point to the first free end
To spend for the first distance, the current path length of the distributing point to the second free end is second distance,
Wherein, the first distance corresponds to a quarter of first frequency range human body medium's wavelength, and second distance corresponds to the second frequency range
The a quarter of human body medium's wavelength.
9. a kind of Implanted medical system, including external control module is arranged at, the power supply being connected with the control module, its
It is characterised by, in addition to the implantable medical device described in one in claim 1 to 8, the control module and the plant
Enter formula Medical Devices to be associated by the radio antenna.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711056965 | 2017-10-27 | ||
| CN2017110569652 | 2017-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107749513A true CN107749513A (en) | 2018-03-02 |
Family
ID=61251031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711125035.8A Pending CN107749513A (en) | 2017-10-27 | 2017-11-14 | Implantable medical device and system |
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| Country | Link |
|---|---|
| CN (1) | CN107749513A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019080945A1 (en) * | 2017-10-27 | 2019-05-02 | 苏州景昱医疗器械有限公司 | Antenna, implantable medical device and implantable medical system |
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| WO2019080945A1 (en) * | 2017-10-27 | 2019-05-02 | 苏州景昱医疗器械有限公司 | Antenna, implantable medical device and implantable medical system |
| GB2587252A (en) * | 2017-10-27 | 2021-03-24 | Suzhou Sceneray Co Ltd | Antenna, implantable medical device and implantable medical system |
| GB2587252B (en) * | 2017-10-27 | 2022-10-19 | Suzhou Sceneray Co Ltd | Antenna, implantable medical device, and implantable medical system |
| CN111262009A (en) * | 2020-03-18 | 2020-06-09 | 苏州无双医疗设备有限公司 | Antenna and implantable medical device |
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