WO2023006301A1 - Dispositif médical implantable à construction compacte - Google Patents

Dispositif médical implantable à construction compacte Download PDF

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Publication number
WO2023006301A1
WO2023006301A1 PCT/EP2022/066941 EP2022066941W WO2023006301A1 WO 2023006301 A1 WO2023006301 A1 WO 2023006301A1 EP 2022066941 W EP2022066941 W EP 2022066941W WO 2023006301 A1 WO2023006301 A1 WO 2023006301A1
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WO
WIPO (PCT)
Prior art keywords
electronic components
housing
medical device
implantable medical
electronic
Prior art date
Application number
PCT/EP2022/066941
Other languages
English (en)
Inventor
Ingo Weiss
Thomas Doerr
Original Assignee
Biotronik Se & Co. Kg
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Biotronik Se & Co. Kg filed Critical Biotronik Se & Co. Kg
Publication of WO2023006301A1 publication Critical patent/WO2023006301A1/fr

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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
    • A61N1/372—Arrangements in connection with the implantation of stimulators
    • A61N1/375—Constructional arrangements, e.g. casings
    • A61N1/3758—Packaging of the components within the casing
    • 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
    • A61N1/375—Constructional arrangements, e.g. casings
    • A61N1/37512—Pacemakers

Definitions

  • BIOTRONIK SE & Co. KG Applicant: BIOTRONIK SE & Co. KG
  • the present invention relates to an implantable medical device.
  • an implantable medical device may be any device which, in an implanted state, provides for a diagnostic and/or therapeutic function within the patient, such as a stimulation function, a sensing function, a monitoring function, a recording function and/or the like.
  • the implantable medical device may be a device configured for cardiac applications such as a pacemaker or a cardiac stimulation device. However, it is not limited to cardiac applications, but for example may also be used for neuro-applications.
  • An implantable medical device may for example have the shape of a leadless stimulation device, such as a leadless pacemaker device.
  • a housing of the leadless pacemaker device encapsulates components of the leadless pacemaker device such as a processor, a data memory, a battery and other processing equipment to allow for operation of the leadless pacemaker device in an autarkic manner.
  • the leadless pacemaker device may be implanted directly into a heart and may operate within the heart, for example within the right ventricle of the heart, without requiring any leads for placing an electrode at a location of interest within the heart.
  • the implantable medical device may also be a stimulation device which comprises a generator to be implanted for example subcutaneously at a location remote from the heart.
  • a lead extends from the generator into the heart to allow for a stimulation or a sensing of signals at a location of interest within the heart, for example within the right ventricle.
  • An implantable medical device of this kind for example a cardiac stimulation device such as a subcutaneous CRT device or a leadless pacemaker device, generally shall be implanted into the patient over a prolonged period of time, such that the implantable medical device remains operative within the patient over its lifespan.
  • the implantable medical device typically comprises electrical components, such as an energy storage device in the shape of a battery or a capacitor or a plurality of such devices, which shall power the implantable medical device for its operation.
  • Implantable medical devices of this kind shall be small in built such that they are easily implantable, for example subcutaneously or directly within the patient's heart or in another vessel of interest.
  • This requires electrical components comprised in the implantable medical device as well as their arrangement within the implantable medical device to be compact and space-efficient.
  • electrical components comprised in the implantable medical device as well as their arrangement within the implantable medical device to be compact and space-efficient.
  • an overall energy storage device of an implantable medical device is formed for example by an assembly of electrical components, for example battery or capacitor components, which are assembled such that they together form the overall energy storage device.
  • electrical components for example battery or capacitor components
  • the assembly of electrical components shall be tightly fit into a housing of the implantable medical device, i.e. for example the housing of a subcutaneous generator or the housing of a leadless pacemaker device, the different electrical components generally need to be manufactured differently.
  • various electrical components such as various energy storage devices may have to be included in the housing.
  • These electrical components may have to be provided with different shapes while having similar or same functionalities.
  • various batteries and/or capacitors may have to be provided within the housing for commonly forming the overall energy storage device. While these batteries and/or capacitors may have similar energy storing functionalities, their shapes may conventionally differ in order to enable arranging each of these batteries and/or capacitors in available areas within the housing and next to for example an electronic module forming for example a core component of the medical device for implementing or controlling the intended diagnostic and/or therapeutic function.
  • an implantable medical device comprising a housing, an electronic module and a plurality of electronic components.
  • the housing has a rounded shape.
  • the electronic module and the plural electronic components are accommodated within the housing.
  • Each of the electronic components is electrically connected to the electronic module.
  • At least two of the electronic components are provided as identical electronic components of a first type.
  • Each of the electronic components is comprised in an individual shell.
  • At least one of the electronic components is arranged with a partial shell area of its shell being adjacent to a partial housing area of the housing and is configured with the partial shell area having a shape being substantially complementary to the rounded shape of the housing in the partial housing area.
  • embodiments of the implantable medical device presented herein may be particularly compact in construction while having a rounded outer contour.
  • the compact construction may result from a beneficial arrangement and shape of multiple electronic components comprised in the rounded housing of the device.
  • the arrangement and shape is adapted such as to make optimal use of available space within the housing while at the same time limiting a number of different types of electronic components.
  • the electronic components are batteries and/or capacitors, an available volume within the rounded housing may be used efficiently such that a high energy storage capacity may be realized.
  • the medical device may be configured for being implanted into a human or animal body. Its size and shape may be adapted for being inserted into and accommodated in living tissue, e.g. in an available space or cavity in the body.
  • the medical device may be configured for operating autonomously, i.e. without requiring energy from external sources.
  • the housing may form an outer shell of the medical device. It may enclose all components of the medical device including, inter-alia, the electronic module and the plurality of electronic components as well as for example other components such as electrical interconnections, sensors, electrodes, etc.
  • the housing may enclose the components in a tight, preferably hermetically sealed manner.
  • the housing may be made from a sufficiently stable, non-corrosive material such as stainless steel or a plastic material.
  • the housing may be made with a sheet material.
  • a wall forming the housing may have a substantially homogeneous thickness. Accordingly, an outer contour of the housing and an inside surface of the wall forming the housing may have a same or substantially same shape.
  • the housing has a rounded shape. This means that at least some portions of the outer surface of the housing have a rounded contour, i.e. are neither planar nor have sharp edges.
  • the rounded portions of the housing may be curved in one or two dimensions.
  • a curvature radius of the rounded portions may be in a same or similar order of magnitude of the dimensions of the housing. For example, with typical housing dimensions of between 2 cm and 20 cm, e.g. about 5 cm, typical curvature radii at the rounded portions may be between 1 mm and 3 m, preferably between 0.5 cm and 0.5 m. Having a rounded shape may mean that the housing preferably has no sharp edges along its entire outer surface.
  • the characteristics of the rounded shape does not necessarily exclude each and every sharp edge as long as the shape of the housing remains suitable for implantation applications. Due to the rounded shape of its housing, the medical device may easily and without risks for injuries be inserted and accommodated in living tissue of the body.
  • the electronic module of the medical device may comprise electronic devices and/or circuitries configured for implementing and/or controlling functionalities of the medical device.
  • the electronic module may comprise a processor, a controller, data memory, a voltage transformer, a sensor, an electrode and/or other electronic devices for realizing therapeutic and/or diagnostic functionalities.
  • the electronic module may comprise a printed circuit board (PCB) supporting and interconnecting the electronic devices mounted at the PCB.
  • PCB printed circuit board
  • the electronic module may require a volume within the housing of the medical device, the volume having for example a rectangular cross-section.
  • the electronic components of the medical device may be components which support, cooperate and/or interact with the electronic module for establishing the functionalities of the medical device. Particularly, the electronic components may serve for supporting or enabling the autonomous operability of the medical device.
  • the electronic components are energy storage devices.
  • Such energy storage devices may be for example primary batteries, i.e. non-rechargeable batteries, secondary batteries, i.e. rechargeable batteries, and/or capacitors.
  • An energy storage capacity of such energy storage devices may be adapted for supplying enough electrical energy for the operation of the medical device during a typical lifespan of the medical device of for example several months or several years.
  • Each of the electronic components is electrically connected to the electronic module, for example via electric lines such as flexible electric wiring and/or rigid electric connectors.
  • at least two electronic components are provided as identical electronic components of a first type.
  • Such identical electronic components may be identical with regard to their outer shape, their intemal structure, their functionality and/or other or all of their physical characteristics.
  • the medical device may exclusively comprise electronic components of the first type.
  • the medical device may comprise electronic components of two or more different types. The types may differ from each other with regard to their outer shape, their internal structure, their functionality and/or others physical characteristics.
  • a number of different types of electronic components required for the medical device may be limited. Particularly, a number of different types of electronic components may be smaller than a number of electronic components in the medical device.
  • an overall energy storage capacity required for the medical device may be established with a multiplicity of energy storage devices of a limited number of types, preferably with only one or two or three or four types of energy storage devices.
  • the identical electronic components of the same type are provided in the medical device in an even number, i.e. there are preferably 2, 4, 6, etc. identical electronic components of a same type comprised in the same housing. Accordingly, the identical electronic components of a same type may be provided and may preferably be arranged in pairs. Such pairs of electronic components may for example be arranged symmetrically within the housing of the medical device.
  • Each of the electronic components is comprised in an individual shell.
  • Such shell may enclose an inner volume of the electronic component.
  • This shell may be rigid thereby giving the electronic component a specific outer contour.
  • the shell may be formed by a housing enclosing internal structures such as electrodes of different polarity and/or an electrolyte.
  • shapes of the shells of the electronic components are specifically adapted to comply with the shape of the housing of the entire medical device.
  • at least one or preferably several or all of the electronic components shall be arranged within the housing with a partial shell area of its shell being adjacent to a partial housing area of the housing.
  • one or more of the electronic components may be comprised in the housing such that at least a portion of their shell abuts to or is mechanically supported by an inner surface of the wall forming the housing.
  • the partial shell area may constitute for example more than 10%, preferably more than 20% or even more than 30% of the overall area of the shell of the electronic component.
  • the shell or shells of the respective one or more electronic components shall be specifically configured such that its partial shell area has a shape which is substantially complementary to the rounded shape of the housing in the partial housing area.
  • substantially complementary may be interpreted in that an outer contour of the partial shell area may be complementary to an inner contour of the wall of the housing in the partial housing area to an extend such that the partial shell area may abut to the wall at least along more than 50%, preferably along more than 80% or even along more than 95% of its surface area.
  • substantially complementary may mean that any gaps between the outer contour of the partial shell area and the inner contour of the wall of the housing in the partial housing area may occur at most locally along the surface extension of the partial shell area and shall be smaller than for example 10%, 5% or even 1% of a dimension of the electronic component in the direction of the gap and/or smaller than for example 10 mm, 5 mm or even 1 mm.
  • substantially complementary may mean that the outer contour of the partial shell area is substantially parallel to the inner contour of the wall of the housing in the partial housing area.
  • the electronic components may be accommodated within the housing in a space saving manner.
  • the housing shall have a rounded shape, this implies that also the shell(s) of the electronic component(s) may have a rounded shape at least in partial areas thereof.
  • electronic components having a rounded shell shape may be more complex to design and/or fabricate than for example electronic components with planar surfaces.
  • additional efforts for designing and/or fabricating electronic components with complex rounded shapes may be acceptable.
  • the at least two of the electronic components of the first type are arranged with a partial shell area of their respective shell being adjacent to a respective partial housing area of the housing and are configured with the partial shell area having a shape complementary to the rounded shape of the housing in the respective partial housing area.
  • At least two identical electronic components are adapted with their partial shell areas to comply with the inner surface of the wall forming the housing. Accordingly, while the available space within the housing may be used effectively, a number of types of electronic components may be limited. Accordingly, efforts for designing and/or fabricating electronic components with complex rounded shapes may be minimised.
  • the electronic components are connected to the electronic module but not mechanically supported to a major extend by the electronic module.
  • each of the electronic components may supply electric energy to the electronic module for example via electric lines
  • the electronic component shall not be mounted or fixedly connected to the electronic module in a manner such that its weight or mass is held to a major extend by the electronic module.
  • the electronic components may be substantially separate components with regard to a mechanical connection to the electronic module.
  • the weight and mass of each electronic component may be mechanically supported to a major extend by a mechanical connection for example to the housing of the medical device. Such mechanical support may be easily established upon fabricating the medical device.
  • the shell of at least one of the electronic components has a partially planar outer surface.
  • planar outer surface may form a substantial portion of the entire outer surface of the shell and may provide for example more than 10%, more than 20% or even more than 30% of the entire outer surface of the shell.
  • planar surface may form a plane surface being orthogonal or being directed away with regard to the partial housing area adjacent to the respective electronic component.
  • Two neighbouring electronic components may be arranged within the medical device such that their planar outer surfaces abut to each other or extend in parallel in close proximity to each other. Providing the electronic components with a shell having a partially planar outer surface may simplify fabricating and/or arranging the electronic components.
  • the shell of at least one of the electronic components has a partially linear outer edge.
  • Such linear edge may extend along a substantial portion of the entire cross-sectional dimensions of the shell and may have a length of for example more than 10%, more than 20% or even more than 30% of the dimensions of the shell in the direction of the linear outer edge.
  • Such linear outer edge may form an edge of the shell extending in an angle, preferably in an orthogonal angle, with regard to the partial housing area adjacent to the respective electronic component.
  • Two neighbouring electronic components may be arranged within the medical device such that their linear outer edges abut to each other or extend in parallel in close proximity to each other. Providing the electronic components with a shell having a partially linear outer edge may simplify fabricating and/or arranging the electronic components.
  • the housing has a shape having a symmetry with respect to a plane, a symmetry with respect to a line or a symmetry with respect to a point.
  • Such symmetry may apply to the entire housing or to substantial portions thereof making up for example more than 10%, more than 20%’ s or even more than 40% of the entire housing.
  • a medical device having such symmetrical housing may be beneficial upon being implanted into a body, may be beneficial with regard to arranging multiple electronic components, may be stable and/or may be simple in fabrication.
  • the plurality of electronic components is subdivided into several subgroups, wherein each subgroup comprises at least one of the electronic components and wherein each electronic component comprised in one subgroup is electrically connected to an electronic component comprised in another subgroup exclusively via the electronic module.
  • all electronic components comprised in the medical device may be grouped into subgroups. While, in principle, a subgroup may comprise only a single electronic component, at least one of the subgroups and preferably several or all of the subgroups shall comprise more than one electronic component. Electronic components within the same subgroup may be electrically interconnected with each other. However, electronic components comprised in different subgroups shall not be electrically interconnected directly. Instead, such electronic components in different subgroups are only connected to the electronic module and there may be an indirect electrical connection between these electronic components exclusively via the electronic module. Thereby, for example arranging and/or interconnecting the electronic modules within the medical device may be simplified.
  • electronic components of one of the subgroups are arranged such that an envelope enclosing all electronic components of the subgroup is arranged with a partial envelope area being adjacent to a partial housing area of the housing, wherein the partial envelope area and the partial housing area have complementary shapes.
  • the electronic components comprised in a subgroup may be interpreted as forming a unit.
  • An outer contour of such unit may be represented by an envelope enclosing all electronic components of the respective subgroup.
  • such envelope may be a virtual construction only and may not necessarily exist as a physical component such as a shell enclosing all the electronic components of the subgroup, such envelope may represent a surface having a contour similar to such optional physical shell.
  • the envelope may comprise a partial envelope area being adjacent to a partial housing area of the housing and such partial envelope area and the partial housing area may have complementary shapes. Due to such arrangement and geometrical configuration of the electronic components in the subgroups, available space within the housing may be optimally filled.
  • two subgroups are positioned and oriented with respect to each other by at least one of an arrangement using a linear translation, an arrangement in symmetry with respect to a plane, an arrangement in a symmetry with respect to a line and an arrangement in a symmetry with respect to a point.
  • a first and a second subgroup each comprising one or more electronic components, may be comprised in the housing of the medical device.
  • the two subgroups may have identical envelopes.
  • the two subgroups are located at different positions and may be oriented in a same or different orientation.
  • the position and orientation of the second subgroup may be obtained by virtually arranging the second subgroup with regard to the first subgroup with a linear translation and/or a mirroring into a symmetry with respect to a plane, a line or a point.
  • Such arranging of electronic components in subgroups with different subgroups being positioned and oriented with respect to each other by linear translation and/or symmetry mirroring may simplify the provision and arranging of electronic components within the medical device.
  • At least one or preferably all of the following conditions apply for the medical device: (i) at least two of the subgroups, preferably each of the subgroups, comprise a same number of electronic components; (ii) at least two of the subgroups, preferably each of the subgroups, have a same envelope; (iii) at least two of the subgroups, preferably each of the subgroups, comprise identical electronic components.
  • a number of subgroups is even.
  • the subgroups may be provided in pairs. Such pairs of subgroups may be included in the housing of the medical device for example in a symmetric position and orientation.
  • At least one electronic component comprised in a first one of the subgroups and a corresponding at least one electronic component comprised in a second one of the subgroups are positioned and oriented with respect to each other by at least one of arranging using linear translation, arranging in symmetry with respect to a plane, arranging in a symmetry with respect to a line and arranging in a symmetry with respect to a point.
  • a first subgroup comprises at least one electronic component and a second subgroup comprises at least one corresponding electronic component.
  • These electronic components of different subgroups are located at different positions and may be oriented in a same or different orientation.
  • the position and orientation of the corresponding electronic component in the second subgroup may be obtained by virtually arranging the electronic component of the first subgroup with a linear translation and/or a mirroring into a symmetry with respect to a plane, a line or a point.
  • Such arranging of electronic components of different subgroups being positioned and oriented with respect to each other by linear translation and/or symmetry mirroring may simplify the provision and arranging of electronic components within the medical device.
  • all of a plurality of electronic components comprised in a subgroup are identical.
  • a subgroup may comprise electronic components of a same type only. Accordingly, for example fabricating the electronic components for the subgroup may be simplified.
  • the electronic components comprised in a same subgroup are positioned and oriented with respect to each other by at least one of arranging using linear translation, arranging in symmetry with respect to a plane, arranging in a symmetry with respect to a line and arranging in a symmetry with respect to a point.
  • two electronic components of a same type may be comprised.
  • three or more electronic components of a same type or of different types may be comprised. These electronic components are located at different positions and may be oriented in a same or different orientation. Therein, the position and orientation of one of the electronic components may be obtained by virtually arranging another one of the electronic components in the same subgroup with a linear translation and/or a mirroring into a symmetry with respect to a plane, a line or a point.
  • Such arranging of electronic components in a same subgroup being positioned and oriented with respect to each other by linear translation and/or symmetry mirroring may simplify the provision and arranging of electronic components within the medical device.
  • the electronic components of any type and/or of any subgroup may be arranged such that at least a subcrowd thereof comprises linear edges and/or planar surfaces arranged in a parallel configuration to each other.
  • the electronic components of any type and/or of any subgroup may be arranged such that at least a subcrowd thereof comprises linear edges and/or planar surfaces arranged in an orthogonal configuration to each other.
  • the components and/or subgroups may be arranged such that between at least one planar partial surface area of a first electronic component or subgroup and at least one planar partial surface area of another electronic component or subgroup, there is a minimum distance (measured at a narrowest position) of less than 10 mm, less than 5 mm or even less than 1 mm.
  • the components or subgroups may be of a same or a different type.
  • the electronic components may have a volume corresponding to at least 5% or at least 10% of the volume of the housing of the medical device.
  • the electronic components may have a shallow shape.
  • the electronic components may have a third dimension which is substantially smaller than the two other dimensions, for example smaller than 50% or smaller than 30% of the smaller one of the two other dimensions.
  • the components in a subgroup may be arranged at least in portions thereof in a regular pattern such as a Cartesian grid, a polar grid, in a helix form, etc.
  • the electronic components within a subgroup may be electrically interconnected.
  • the electronic components within a subgroup may be electrically isolated from each other.
  • electronic components within a subgroup may be generally electrically isolated from each other but an electrical connection between them is established at predetermined locations such as at contact elements of the electronic component.
  • All electronic components comprised in a subgroup may be enveloped or wrapped as an entity for example using a foil or a subgroup-housing.
  • Such foil or subgroup-housing may be electrically conductive or electrically isolating.
  • the electrical components comprised in a subgroup may optionally have an offset with respect to each other.
  • Such offset may serve for adapting the contour of the subgroup to the contour of the housing of the medical device. Accordingly, spaces in a rounded portion of the housing may at least partially be filled and non-used volumes within the housing may be minimised.
  • the offset may be generated such as to provide a bulge or filet indentation extending in a direction of the housing, i.e. into a rounded portion of the housing. Due to the offset, a notch or recess may be generated at an opposite side of the subgroup, this opposite side being directed e.g. towards a centre of the housing.
  • Such notch or recess may for example serve for accommodating other components of the medical device such as connectors, electric lines, etc.
  • the applicant of the present application filed further applications simultaneously with the present application. These further applications have the titles “Implantable medical device with a space efficient electrical interconnection structure” and “Method for fabricating an implantable medical device with a simplified interconnection scheme and corresponding implantable medical device”. Embodiments of an implantable medical device are described in these further applications and features and characteristics of such embodiments may be applied or adopted to embodiments of the implantable medical device described in the present application. Accordingly, the content of the further applications shall be incorporated herein in their entirety by reference.
  • FIGs. 1 and 2 very schematically show implantable medical devices according to embodiments of the present invention.
  • Figs. 3 and 4 show perspective views onto implantable medical devices according to embodiments of the present invention.
  • Figs. 5 to 10 show various configurations of subgroups for implantable medical devices according to embodiments of the present invention.
  • Figs. 11 and 12 show arrangements of electronic components for implantable medical devices according to embodiments of the present invention.
  • the figures are only schematic and not to scale. Same reference signs refer to same or similar features.
  • Figs. 1 and 2 show very schematic representations of embodiments of an implantable medical device 1.
  • the medical device 1 comprises a housing 3 in which an electronic module 5 and several electronic components 7 are accommodated.
  • two different types of electronic components 7’, 7” are included in the housing 3, the electronic components 7’ of a first type having another geometry than the electronic components 7” of a second type.
  • two identical electronic components 7’ of the first type and two identical electronic components 7” of the second type are comprised in the common housing 3.
  • Each electronic component 7 comprises an individual shell 9.
  • the electronic components 7 are electrically connected to the electronic module 5 for example via connectors 33 and/or electric lines 35.
  • Figs. 3 and 4 show perspective views onto embodiments of an implantable medical device 1.
  • the housing 3 is only represented with a dotted line in order to enable viewing the plurality of electronic components 7 comprised therein.
  • the electronic module 5 is not represented in order to enhance a view onto the electronic components 7.
  • the medical device 1 comprises a header 31.
  • the housing 3 has a rounded shape.
  • the electronic components 7 comprise shells 9 having a partial shell area 11 with a rounded shape.
  • the partial shell area 11 extends adjacent to a partial housing area 13 of the housing 3 having the rounded shape.
  • the partial shell area 11 has a rounded shape which is substantially complementary to the rounded shape of the housing 3 in the partial housing area 13. Accordingly, an outer surface of the shell 9 in the partial shell area 11 follows, i.e. is substantially parallel to, an inner surface of the housing 3.
  • the electronic components 7 are electrically connected to the electronic module 5 but are not mechanically supported by the electronic module 5 to a major extend. Instead, the electronic components 7 are mainly fixedly held by the housing 3.
  • At least some of the shells 9 of the electronic components 7 have a partially planar outer surface 15 and/or a partially linear outer edge 17. Accordingly, such electronic components 7 may be arranged with their planar outer surfaces 15 adjacent to or abutting to each other. Furthermore, the electronic components 7 may be arranged such that their partially linear outer edges 17 are suitably aligned with each other and/or with an inner surface of the housing 3.
  • the housing 3 has a symmetry with respect to a plane 19 or even a symmetry with respect to a centre line 20 in such plane 19.
  • the housing 3 could also have a symmetry with respect to a central point.
  • the electronic components 7 are arranged in a corresponding symmetry within the housing 3.
  • at least a portion of the housing 3 has a symmetry with respect to a plane 19 and some of the electronic components 7 are arranged in a corresponding symmetry in the housing 3.
  • a first type of electronic components 7’ has a shallow shape. Three of such shallow electronic components 7’ are stacked on top of each other and form a first subgroup 2G and a second subgroup 2G ’ of electronic components 7’ .
  • the shallow electronic components 7’ may be for example energy storage devices such as capacitors 29.
  • Electronic components 7” of a second type may be thicker than the electronic components 7’ of the first type. Such thicker electronic components 7” may also be energy storage devices such as primary or secondary batteries 27.
  • Each one of such thicker electronic components 7” may form a third subgroup 2G” and a fourth subgroup 21”” of electronic components 7”, respectively.
  • each electronic component 7 comprised in each of the various subgroups 21 are electrically connected to other electronic components 7 comprised in another one of the subgroups 21 exclusively indirectly via the electronic module 5.
  • each electronic component 7 may at most be connected to other electronic components 7 in the same subgroup 21 and is directly or indirectly connected to the electronic module 5 but is not directly connected to any electronic component 7 comprised in another subgroup 21.
  • Figs. 5 to 10 show possible configurations and arrangements of electronic components 7 within one subgroup 21.
  • Fig. 5 shows a subgroup 21 including three identical electronic components 7a, b, c stacked on top of each other.
  • Each of the electronic components 7a, b, c has a symmetrical shape with regard to a plane 19 of symmetry and comprises rounded partial shell areas 11 which are rounded in one dimension.
  • Fig. 6 shows a subgroup 21 with a stack including three identical electronic components 7a, b, c.
  • the electronic components 7a, b, c may be stacked on top of each other with their planar outer surfaces 15 running in parallel or abutting to each other.
  • the electronic components 7a, b, c have symmetrical shapes and comprise rounded partial shell areas 11.
  • the partial shell areas 11 are rounded in two dimensions, i.e. horizontally and vertically.
  • the shells 9 of the electronic components 7a, b, c are rounded both at some of their corners 37’ as well as at some of their edges 39”.
  • corners 37’ and edges 39’ which extend adjacent to the inner surface of the housing 3 form rounded partial shell areas 11 having a shape complementary to the shape of the rounded housing 3 at the partial housing areas 13.
  • Other corners 37” and edges 39” may not be a rounded but sharp.
  • an envelope 23 enclosing all electronic components 7a, b, c in the subgroup 21 may be configured and arranged such that a partial envelope area 25 is adjacent to the partial housing area 13 of the housing 3 and has a complementary curved shape with regard to the partial housing area 13.
  • an uppermost electronic component 7a and a lowermost electronic component 7c have identical shapes and are arranged in symmetry with regard to a symmetry plane 19.
  • the middle electronic component 7b is arranged between these two outer electronic components 7a, c.
  • the middle electronic component 7b may be identical to the other electronic components 7a ,c and may be arranged for example in symmetry to the lowermost electronic component 7c with regard to another symmetry plane.
  • Fig. 7 shows a subgroup 21 of electronic components 7a, b, c in which the electronic components 7a, b, c are separated and electrically isolated from each other via intermediate isolating foils 43 forming electric isolators 41.
  • Figs. 8 and 9 show subgroups 21 of electronic components 7a-c and 7a-d, respectively.
  • an electronic component 7b or two electronic components 7b, c at the middle between outer electronic components 7a, c or 7a, d, respectively, are arranged with a lateral offset with regard to the outer electronic components. Due to such offset, a rounded contour of the housing 3 may be filled more efficiently as the envelope 23 may follow with its partial envelope area 25 the contour of the housing in its partial housing area 13.
  • Fig. 10 shows another example of a subgroup 21 of electronic components 7a-c with a middle electronic component 7b being offset laterally with regard to outer electronic components 7a, c. In this example, the electronic components 7a-c do not have explicitly rounded edges.
  • the envelope 23 may roughly follow the contour of the rounded housing 3 due to the linear offset of the middle electronic component 7b.
  • the electronic components 7a-c comprise electrical contacts 45 cooperating with a connection circuit board 47.
  • the connection circuit board 47 is configured to establish an electric connection to connector pins 49.
  • the connection circuit board 47 and the connector pins 49 may be configured such that each of the electronic components 7a-c may be individually connected to the electronic module 5 via the connector pins 49. Accordingly, in case the electronic components 7a-c are energy storage devices, each of these storage devices may supply energy individually to the electronic module 5 or may be charged individually via the electronic module 5.
  • FIGs. 11 and 12 visualise options for arranging electronic components 7 within an implantable medical device 1. It is to be noted that in such options, the electronic components 7, the electronic module 5 and the header 31 may be arranged at various orientations and/or may have different sizes or shapes.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Electrotherapy Devices (AREA)

Abstract

L'invention concerne un dispositif médical implantable (1) comprenant un boîtier (3), un module électronique (5) et une pluralité de composants électroniques (7). Le dispositif médical peut être, par exemple, un stimulateur cardiaque (un pacemaker) ou un dispositif de stimulation cardiaque. Le module électronique peut mettre en œuvre des fonctionnalités du dispositif médical. Les modules électroniques peuvent être des dispositifs de stockage d'énergie. Le boîtier a une forme arrondie. Le module électronique et la pluralité de composants électroniques sont logés dans le boîtier. Chacun des composants électroniques est électriquement connecté au module électronique. Au moins deux des composants électroniques sont fournis sous la forme de composants électroniques identiques d'un premier type. Chacun des composants électroniques est compris dans une coque individuelle (9). Au moins un des composants électroniques est agencé avec une zone partielle de coque (11) de son coque adjacente à une zone partielle de boîtier (13) du boîtier et est configuré avec la zone partielle de boîtier ayant une forme sensiblement complémentaire à la forme arrondie du boîtier dans la zone partielle de boîtier.
PCT/EP2022/066941 2021-07-28 2022-06-22 Dispositif médical implantable à construction compacte WO2023006301A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP21188136.2 2021-07-28
EP21188136 2021-07-28

Publications (1)

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WO2023006301A1 true WO2023006301A1 (fr) 2023-02-02

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6026325A (en) * 1998-06-18 2000-02-15 Pacesetter, Inc. Implantable medical device having an improved packaging system and method for making electrical connections
US20040174658A1 (en) * 2000-11-03 2004-09-09 Cardiac Pacemakers, Inc. Implantable heart monitors having flat capacitors with curved profiles
US20050154423A1 (en) * 2004-01-13 2005-07-14 Goedeke Steven D. Method for reducing implantable defibrillator volume
US20130079600A1 (en) * 2011-09-27 2013-03-28 Medtronic, Inc. Battery and capacitor arrangement for an implantable medical device
US20200086131A1 (en) * 2018-09-18 2020-03-19 Biotronik Se & Co. Kg Stackable capacitor for an implantable medical device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6026325A (en) * 1998-06-18 2000-02-15 Pacesetter, Inc. Implantable medical device having an improved packaging system and method for making electrical connections
US20040174658A1 (en) * 2000-11-03 2004-09-09 Cardiac Pacemakers, Inc. Implantable heart monitors having flat capacitors with curved profiles
US20050154423A1 (en) * 2004-01-13 2005-07-14 Goedeke Steven D. Method for reducing implantable defibrillator volume
US20130079600A1 (en) * 2011-09-27 2013-03-28 Medtronic, Inc. Battery and capacitor arrangement for an implantable medical device
US20200086131A1 (en) * 2018-09-18 2020-03-19 Biotronik Se & Co. Kg Stackable capacitor for an implantable medical device

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