Methods and apparatuses for detecting medical device acceleration, temperature, and humidity conditions
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-031/00
A61M-037/00
A61M-001/00
출원번호
US-0906087
(2010-10-16)
등록번호
US-8100852
(2012-01-24)
발명자
/ 주소
Moberg, Sheldon B.
Hanson, Ian B.
Talbot, Cary D.
Ireland, Jeffrey
출원인 / 주소
Medtronic MiniMed, Inc.
인용정보
피인용 횟수 :
102인용 특허 :
1
초록▼
An ambulatory medical device for detecting acceleration, temperature, and/or humidity conditions in or around the medical device is provided. The medical device includes one or more acceleration, thermal, and/or humidity sensors which detect acceleration, temperature, and/or humidity conditions in o
An ambulatory medical device for detecting acceleration, temperature, and/or humidity conditions in or around the medical device is provided. The medical device includes one or more acceleration, thermal, and/or humidity sensors which detect acceleration, temperature, and/or humidity conditions in or around the medical device. In response to detected conditions, the medical device may, among other things, alter the operation of the device, provide an alarm or warning to the user, or transmit data about the detected conditions to another device.
대표청구항▼
1. An external infusion device for infusing fluid into a person from a reservoir, comprising: a reservoir;a housing adapted to be carried on an exterior of the person;a drive mechanism contained in the housing and operatively coupled to the reservoir to deliver fluid from the reservoir into the pers
1. An external infusion device for infusing fluid into a person from a reservoir, comprising: a reservoir;a housing adapted to be carried on an exterior of the person;a drive mechanism contained in the housing and operatively coupled to the reservoir to deliver fluid from the reservoir into the person;a processor contained in the housing;an indicator operatively coupled to the processor and adapted to provide at least one of a visual indication, an audible indication, or a tactile indication to indicate information about the infusion device to the person; andan acceleration sensor coupled to the processor and adapted to provide an acceleration output signal as a function of acceleration forces acting on the housing, wherein the acceleration sensor is an impact switch disposed within the housing, the impact switch comprising: an electrical input and an electrical output,an electrically conductive seismic mass having an anchored end and a free end, the mass being electrically coupled to the electrical output, and coupled to the housing at the anchored end and adapted for resilient deflection at the free end in a plurality of directions, anda plurality of electrically conductive contact surfaces fixedly mounted adjacent to the mass, each of the contact surfaces being electrically coupled to the electrical input,wherein the mass is adapted to deflect in one of the plurality of directions from a first position to a second position, touch one of the plurality of contact surfaces, and return from the second position to the first position such that a circuit between the electrical input and the electrical output is closed to provide the acceleration output signal when a predetermined acceleration force in one of the plurality of directions acts on the housing, andwherein the seismic mass comprises: an electrically conductive arm member having an anchored end and a free end, the arm member being electrically coupled to the electrical output and coupled to the housing at the anchored end and adapted for resilient deflection at the free end in the plurality of directions; andan electrically conductive impact head mounted on the free end of the arm member, the impact head being electrically coupled to the arm member,wherein the arm member is adapted to deflect in one of the plurality of directions from the first position to the second position, the impact head is adapted to touch one of the plurality of contact surfaces, and the arm member is adapted to return from the second position to the first position such that a circuit between the electrical input and the electrical output is closed to provide the acceleration output signal when a predetermined acceleration force in one of the plurality of directions acts on the housing, and wherein the arm member has a curved bend,wherein the processor is adapted to control the infusion device in accordance with the acceleration output signal. 2. The external infusion device of claim 1, wherein the plurality of electrically conductive contact surfaces are mounted to form an enclosure generally surrounding at least a portion of the seismic mass. 3. The external infusion device of claim 1, further comprising a memory contained in the housing and coupled to the processor, wherein the memory is adapted to store a predetermined acceleration threshold corresponding to an impact on the housing. 4. The external infusion device of claim 3, wherein if the acceleration output signal exceeds the predetermined acceleration threshold, the processor is adapted to control the infusion device by causing the indicator to provide an alarm or a warning to the person. 5. The external infusion device of claim 3, wherein if the acceleration output signal exceeds the predetermined acceleration threshold, the processor is adapted to control the infusion device by causing the drive mechanism to alter delivery of the fluid into the person. 6. The external infusion device of claim 3, further comprising a transmitter/receiver contained in the housing and coupled to the processor, wherein the transmitter/receiver is adapted to communicate with a remote device, and further wherein if the acceleration output signal exceeds the predetermined acceleration threshold, the processor is adapted to control the infusion device by causing the transmitter/receiver to send information about the impact to the remote device. 7. The external infusion device of claim 1, wherein the processor is further adapted to determine whether the person is engaging in a physical activity based on the acceleration output signal. 8. The external infusion device of claim 7, wherein if the processor determines that the person is engaging in a physical activity, the processor is adapted to control the infusion device by causing the drive mechanism to alter delivery of the fluid into the person from a current delivery rate to a modified delivery rate. 9. The external infusion device of claim 8, wherein the processor is further adapted to determine whether the person has stopped engaging in the physical activity based on the acceleration output signal. 10. The external infusion device of claim 9, wherein if the processor determines that the person has stopped engaging in the physical activity, the processor is adapted to control the infusion device by causing the drive mechanism to return delivery of the fluid into the person from the modified delivery rate to the current delivery rate. 11. An external ambulatory medical device for use on a person's body, comprising: a housing adapted to be carried on an exterior of the person's body; a processor contained in the housing;an indicator operatively coupled to the processor and adapted to provide at least one of a visual indication, an audible indication, or a tactile indication to indicate information about the ambulatory medical device to the person; andan acceleration sensor coupled to the processor and adapted to provide an acceleration output signal as a function of acceleration forces acting on the housing, wherein the acceleration sensor is an impact switch disposed within the housing, the impact switch comprising:an electrical input and an electrical output, an electrically conductive seismic mass having an anchored end and a free end, the mass being electrically coupled to the electrical output, and coupled to the housing at the anchored end and adapted for resilient deflection at the free end in a plurality of directions, anda plurality of electrically conductive contact surfaces fixedly mounted adjacent to the mass, each of the contact surfaces being electrically coupled to the electrical input,wherein the mass is adapted to deflect in one of the plurality of directions from a first position to a second position, touch one of the plurality of contact surfaces, and return from the second position to the first position such that a circuit between the electrical input and the electrical output is closed to provide the acceleration output signal when a predetermined acceleration force in one of the plurality of directions acts on the housing,wherein the seismic mass comprises: an electrically conductive arm member having an anchored end and a free end, the arm member being electrically coupled to the electrical output and coupled to the housing at the anchored end and adapted for resilient deflection at the free end in the plurality of directions, andan electrically conductive impact head mounted on the free end of the arm member, the impact head being electrically coupled to the arm member,wherein the arm member is adapted to deflect in one of the plurality of directions from the first position to the second position, the impact head is adapted to touch one of the plurality of contact surfaces, and the arm member is adapted to return from the second position to the first position such that a circuit between the electrical input and the electrical output is closed to provide the acceleration output signal when a predetermined acceleration force in one of the plurality of directions acts on the housing, and wherein the arm member has a curved bend,wherein the processor is adapted to control the ambulatory medical device and the indicator is adapted to indicate information about the ambulatory medical device based on the acceleration output signal. 12. The ambulatory medical device of claim 11, wherein the plurality of electrically conductive contact surfaces are mounted to form an enclosure generally surrounding at least a portion of the seismic mass. 13. The ambulatory medical device of claim 11, wherein the ambulatory medical device is an external infusion pump. 14. The ambulatory medical device of claim 11, wherein the ambulatory medical device is a glucose monitoring device. 15. The ambulatory medical device of claim 11, further comprising a transmitter/receiver contained in the housing and coupled to the processor, wherein the transmitter/receiver is adapted to communicate with a remote device, and further wherein the processor is adapted to control the ambulatory medical device by causing the transmitter/receiver to send information about the ambulatory medical device to the remote device based on the acceleration output signal.
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