CN106237516B - Rechargeable type implantable medical device - Google Patents
Rechargeable type implantable medical device Download PDFInfo
- Publication number
- CN106237516B CN106237516B CN201610827970.8A CN201610827970A CN106237516B CN 106237516 B CN106237516 B CN 106237516B CN 201610827970 A CN201610827970 A CN 201610827970A CN 106237516 B CN106237516 B CN 106237516B
- Authority
- CN
- China
- Prior art keywords
- shell
- coil
- battery
- printed circuit
- rechargeable type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001816 cooling Methods 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims description 17
- 239000012782 phase change material Substances 0.000 claims description 9
- 238000002513 implantation Methods 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 239000003575 carbonaceous material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 6
- 230000006872 improvement Effects 0.000 description 9
- 230000000638 stimulation Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 210000005036 nerve Anatomy 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- SESRESPLYXIWKJ-UHFFFAOYSA-N [Cl].S(O)(O)=O.[Li] Chemical compound [Cl].S(O)(O)=O.[Li] SESRESPLYXIWKJ-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 210000003169 central nervous system Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 238000005424 photoluminescence Methods 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 210000001186 vagus nerve Anatomy 0.000 description 1
Classifications
-
- 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
- A61N1/3605—Implantable neurostimulators for stimulating central or peripheral nerve system
- A61N1/36053—Implantable neurostimulators for stimulating central or peripheral nerve system adapted for vagal stimulation
-
- 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
- A61N1/36125—Details of circuitry or electric components
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
Abstract
Present invention discloses a kind of rechargeable type implantable medical devices, comprising: shell；The battery that is set in shell and for the received coil of battery charging power；Printed circuit-board assembly and shielded layer are additionally provided in the shell, the printed circuit-board assembly is set between the battery and coil, the shielded layer is set between the printed circuit-board assembly and coil, and the side that the shell closes on coil is provided with cooling fin.Skin temperature highest point rate of rise in temperature slows down the rechargeable type implantable medical device during the charging process, can enhance user temperature experience.
Description
Technical field
The present invention relates to a kind of rechargeable type implantable medical device, especially a kind of people with radiator structure, implantable
The rechargeable type implantable medical device in internal portion.
Background technique
There are many implantable medical device type, such as pacemaker and spinal stimulator, embedded nerve stimulator.Implantation
Formula medical device is generally configured with outer control device, exchanges information by bidirectional wireless communication between the two.
In the prior art, implantable medical device proposal is powered using battery, issues the boost pulse of specific frequency, right
Specific target spot carries out long-time stimulus, so as to improve the symptom of patient.However, the implantable medical device powered using primary battery
Prevailing price is higher, and the service life is mostly shorter.The principal element in limitation implantable medical device service life is the capacity of battery, is needed
The implantable medical device product wanted mostly uses the lithium primary cell of high-energy density to be powered, such as lithium-sulfurous acid chlorine battery and
Polyfluorinated organic carbon battery of lithium-etc..Once the energy content of battery exhausts, patient just has to undergo surgery again, replacement implantable medical dress
It sets, only patient does not cause the wound on body, and expensive price is also that patient brings huge economic pressures.
In order to extend the service life of implantable medical device, it is developed external rechargeable implantable medical device, i.e.,
The lithium ion battery in medical device to implant can charge, so that it may which greatly increase implantable medical device uses the longevity
Life.The external rechargeable implantable medical device generally includes the rechargeable battery of a metal shell and shell encapsulation, therefore, in body
During outer wireless charging, vortex can be all generated on the rechargeable battery that shell and shell encapsulate to generate heat, and
Local heat flux density is big, and temperature rise is fast, increases the temperature of the implanted component of battery or even entire implantable medical device.And implanting portion
Part excessive heat can generate adverse effect to human body, influence user temperature experience.In addition, battery temperature increases, it is also possible to shadow
Ring the service life of battery.
Summary of the invention
The purpose of the present invention is to provide a kind of rechargeable type implantable medical device, which exists
Shell thermal self-restraint stress rate of rise in temperature slows down in charging process, can enhance user temperature experience, and user uses safe same
When rechargeable type implantable medical service using life it is long.
For achieving the above object, the present invention provides a kind of rechargeable type implantable medical device, comprising: shell；Setting
In the battery in shell and it is used for the received coil of battery charging power；Be additionally provided in the shell printed circuit-board assembly with
And shielded layer, the printed circuit-board assembly are set between the battery and coil, the shielded layer is set to the printing
Between circuit board assemblies and coil, the side that the shell closes on coil is provided with cooling fin.
As the further improvement of an embodiment of the present invention, the cooling fin is made of graphite flake.
As the further improvement of an embodiment of the present invention, the cooling fin is close to shell setting.
As the further improvement of an embodiment of the present invention, phase-change material, the phase-change material are set in the shell
It is filled in the space between the shell and the battery.
As the further improvement of an embodiment of the present invention, phase-change material, the phase-change material are set in the shell
It is filled in the space between the shell and the printed circuit-board assembly and battery.
As the further improvement of an embodiment of the present invention, phase-change material, the phase-change material are set in the shell
It is filled in the space between the shell and the shielded layer and coil.
As the further improvement of an embodiment of the present invention, the phase-change material is made of paraffin.
As the further improvement of an embodiment of the present invention, the coil and battery are individually fixed in the printed circuit
Board group part two sides.
As the further improvement of an embodiment of the present invention, the coil and battery are fixed by way of bonding respectively
In the printed circuit-board assembly.
As the further improvement of an embodiment of the present invention, the shell is made of titanium alloy material.
Compared with prior art, the beneficial effects of the present invention are: rechargeable type implantable medical devices of the present invention using dissipating
Backing reduces local high heat flux density, so that shell thermal self-restraint stress rate of rise in temperature slows down in charging process, enhancing
User temperature experience.
Detailed description of the invention
Fig. 1 is the cross-sectional view of rechargeable type implantable medical device in currently preferred first embodiment.
Fig. 2 is the cross-sectional view of rechargeable type implantable medical device in currently preferred second embodiment.
Fig. 3 is the cross-sectional view of rechargeable type implantable medical device in currently preferred third embodiment.
Fig. 4 is the cross-sectional view of rechargeable type implantable medical device in currently preferred 4th embodiment.
Specific embodiment
Below with reference to specific 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 those skilled in the art are made according to these embodiments, method or functionally
Transformation is included within the scope of protection of the present invention.
Rechargeable type implantable medical device provided by the invention is suitable for implanted lesions located in deep brain system (DBS), plants
Enter formula cortex stimulation (CNS), implanted spinal cord stimulation trial system (SCS), implanted Sacral nerve electrical stimulation system (SNS), plant
Enter other similar stimulating systems such as formula vagus nerve electric stimulation (VNS).
Rechargeable type implantable medical device can carry out wireless charging by associated external charging unit (not shown).
Rechargeable type implantable medical device using when be implanted into the patient, for patient's leave of absence electric-impulse stimulation.In addition, rechargeable type
Implantable medical device can also remotely control it by outer control device (not shown), the structure of outer control device
It is unlimited, for adjusting the pulse parameter, such as amplitude, frequency etc. of the rechargeable type implantable medical device.
As shown in Figure 1, the preferred first embodiment of rechargeable type implantable medical device of the present invention, rechargeable type implantation doctor
Treating device 100 includes shell 20, is set to the rechargeable battery 30 stacked gradually in shell 20, printed circuit board (PCB) group
Part 60, shielded layer 50 and coil 40.Shell 20 is for accommodating and sealing rechargeable battery 30, printed circuit board (PCB) component
60, the elements such as shielded layer 50 and coil 40 or module.Shell 20 is prepared using biocompatible metal material, the present embodiment
In preferably titanium alloy material.Coil 40 is used for the reception of external rechargeable energy, and coil 40 is arranged close to shell 20, when chargeable
After formula implantable medical device 100 is implanted into the patient, coil 40 is close to skin surface side, in order to the dependence of external charging unit
The control of printed circuit board (PCB) component 60 is charged by coil 40 to rechargeable battery 30.
Shielded layer 50 in the present embodiment is set between rechargeable battery 30 and coil 40, the main function of shielded layer 50
Are as follows: on the one hand, rechargeable battery 30 is electromagnetically shielded, to avoid external charging unit to 40 wireless energy transmission of coil
During, vortex is generated on shell 20 to generate heat；On the other hand, it will be generated in 30 charging process of rechargeable battery
Heat conduct to shell 20, with by shell 20 to tissue radiate.Shielded layer 50 is generally prepared using nonmetallic materials,
Heat is generated due to eddy current effect to avoid sheet metal when wireless charging.Preferably, shielded layer 50 uses conductive carbon material, example
Such as carbon fiber, carbon nanotube.Certainly, shielded layer 50 can be set on the surface of rechargeable battery 30, also can be set outside
The inner surface of shell 20.It can be fixed by binder between shielded layer 50 and shell 20.
Printed circuit board (PCB) component 60 in the present embodiment include printed circuit board (PCB) and the device that is arranged on
Part.Printed circuit board (PCB) component 60 is arranged between rechargeable battery 30 and shielded layer 50, can be consolidated by way of bonding
Due in shell 20, naturally it is also possible to rib be arranged in shell 20, be fixed in a manner of clamping in shell 20.Printed circuit board
(PCB) component 60 at least has two kinds of functions, the first function, signal control, printed circuit board (PCB) component 60, which has, to be edited
Good program can make rechargeable type implantable medical device 100 generate the electricity of different frequency, different pulse widths, different amplitudes
Stimulation pulse signal.The stimulus waveform of the electric stimulation pulse signal can be square wave, sine wave, exponential wave, triangular wave etc..The
Two kinds of functions, wireless telecommunications, printed circuit board (PCB) component 60 can be wirelessly connected with outer control device, to pass through body
The program of printed circuit board (PCB) component 60 may be selected in outer control device, program parameter is adjusted, to change the electro photoluminescence of output
Pulse signal.
Further, cooling fin 70 is additionally provided between the present embodiment coil 40 and shell 20, cooling fin 70 is pasted onto
On the side shell 20 of coil 40, the side shell 20 is close to external charging device.Fin material be natural graphite flakes and
The graphite sheet materials such as electrographite piece.Since vortex is big on the side shell 20 of external charging device, cause fever big and
Unevenly, therefore using cooling fin 70 local high heat flux density is reduced, so that shell thermal self-restraint stress temperature in charging process
The degree rate of climb slows down, enhancing user temperature experience.
As shown in Fig. 2, the preferred second embodiment of rechargeable type implantable medical device of the present invention, rechargeable type implantable medical
Device 200, different from the first embodiment, phase change is set between shell 20 and coil 40 and shielded layer 50 in the present embodiment
Material, that is to say, that phase-transition material full of space between shell 20 and coil 40 and shielded layer 50, because cooling fin 70 close to
Shell 20 is arranged, therefore alternatively phase-transition material phase-transition material full of shell 20 and cooling fin 70 and coil 40 and shields
Space between layer 50, to absorb the heat on shell 20, coil 40 and cooling fin 70.
As shown in figure 3, the preferred 3rd embodiment of rechargeable type implantable medical device of the present invention, rechargeable type implantable medical
Device 300, different from the first embodiment, shell 20 and printed circuit board (PCB) component 60 and chargeable in the present embodiment
Phase-transition material is set between battery 30, that is to say, that phase-transition material is full of shell 20 and printed circuit board (PCB) component 60
Space between rechargeable battery 30, to absorb from shell 20, printed circuit board (PCB) component 60, coil 40 and can
Heat on rechargeable battery 30.
As shown in figure 4, the preferred fourth embodiment of rechargeable type implantable medical device of the present invention, rechargeable type implantable medical
Device 400, different from the first embodiment, phase-transition material is set between shell 20 and coil 40 and shielded layer 50, and
Phase-transition material is also provided between shell 20 and printed circuit board (PCB) component 60 and rechargeable battery 30, that is to say, that phase transformation
Change material and be not only full of the space between shell 20 and coil 40 and shielded layer 50, is further filled with shell 20 and printed circuit board
(PCB) space between component 60 and rechargeable battery 30 comes from coil 40, rechargeable battery 30, printed circuit to absorb
Heat on plate (PCB) component 60, cooling fin 70 and shell 20 reduces the temperature rise of entire 20 ontology of shell and its inner space
Speed improves user temperature experience.
Phase-transition material of the aforementioned second embodiment into fourth embodiment, can be paraffin, potting compound, gel etc.
Organic or inorganic phase-changing material, phase-transition material are embedded in inside shell 20 after being packed by way of flexible sealing bag.Setting
Phase-transition material is mainly used for absorbing a part during the charging process from printed circuit board (PCB) component 60, rechargeable battery
30, the heat of cooling fin 70 and shell 20, the heat that another part is generated from coil 40；Slow down shell temperature rise speed, improves
User temperature experience；Prevent battery temperature from increasing simultaneously, to extend the service life of battery.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book
With the other embodiments of understanding.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope bright, that they are not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention
Or change should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of rechargeable type implantation medical instrument, comprising: shell；It the battery that is set in shell and charges energy for battery
Measure received coil；The side that the shell closes on coil is provided with cooling fin, it is characterised in that: print is additionally provided in the shell
Printed circuit board component and shielded layer, the printed circuit-board assembly are set between the battery and coil, the shielded layer
It is set between the printed circuit-board assembly and coil, the coil and battery are individually fixed in the printed circuit-board assembly
Two sides, between the shell and the printed circuit-board assembly and battery space filling phase-change material and/or the shell with
Phase-change material is filled in space between the shielded layer and coil, and the shielded layer uses conductive carbon material.
2. rechargeable type implantation medical instrument according to claim 1, which is characterized in that the cooling fin is by graphite flake structure
At.
3. rechargeable type implantation medical instrument according to claim 1, which is characterized in that the cooling fin is close to shell and is set
It sets.
4. according to claim 1 to rechargeable type implantation medical instrument described in one in 3, which is characterized in that the phase transformation
Material is made of paraffin.
5. rechargeable type implantation medical instrument according to claim 1, which is characterized in that the coil and battery lead to respectively
The mode for crossing bonding is fixed on the printed circuit-board assembly.
6. rechargeable type implantation medical instrument according to claim 1, which is characterized in that the shell is by titanium alloy material
It constitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610827970.8A CN106237516B (en) | 2016-09-18 | 2016-09-18 | Rechargeable type implantable medical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610827970.8A CN106237516B (en) | 2016-09-18 | 2016-09-18 | Rechargeable type implantable medical device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106237516A CN106237516A (en) | 2016-12-21 |
| CN106237516B true CN106237516B (en) | 2019-04-23 |
Family
ID=57598912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610827970.8A Active CN106237516B (en) | 2016-09-18 | 2016-09-18 | Rechargeable type implantable medical device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106237516B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612074A (en) * | 2017-09-27 | 2018-01-19 | 北京品驰医疗设备有限公司 | Chargeable implanted equipment and its supply unit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203406659U (en) * | 2013-07-09 | 2014-01-22 | 深圳市合元科技有限公司 | Wireless charging receiver |
| CN105916363A (en) * | 2016-07-01 | 2016-08-31 | 苏州景昱医疗器械有限公司 | Wireless charging device |
| CN206424428U (en) * | 2016-09-18 | 2017-08-22 | 苏州景昱医疗器械有限公司 | Rechargeable type implantable medical device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8887619B2 (en) * | 2011-10-28 | 2014-11-18 | Medtronic, Inc. | Removable heat management for recharge coils |
| CN204441920U (en) * | 2015-01-08 | 2015-07-01 | 彭伟成 | A kind of Novel chargeable portable power source |
| CN105148402B (en) * | 2015-08-03 | 2018-03-20 | 北京品驰医疗设备有限公司 | Rechargeable implantable medical device with protection and restriction function |
-
2016
- 2016-09-18 CN CN201610827970.8A patent/CN106237516B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203406659U (en) * | 2013-07-09 | 2014-01-22 | 深圳市合元科技有限公司 | Wireless charging receiver |
| CN105916363A (en) * | 2016-07-01 | 2016-08-31 | 苏州景昱医疗器械有限公司 | Wireless charging device |
| CN206424428U (en) * | 2016-09-18 | 2017-08-22 | 苏州景昱医疗器械有限公司 | Rechargeable type implantable medical device |
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| CN106237516A (en) | 2016-12-21 |
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Address after: Building C16, biological nano Park, 218 Xinghu street, Suzhou Industrial Park, Jiangsu Province Patentee after: Jingyu Medical Technology (Suzhou) Co.,Ltd. Address before: 215123 C16, biological nano Park, 218 Xinghu street, Suzhou Industrial Park, Jiangsu Province Patentee before: SCENERAY Co.,Ltd. |
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