Ambulatory infusion devices and filter assemblies for use with same
First Claim
Patent Images
1. An ambulatory infusing device, comprising:
- a housing;
a reservoir including a reservoir end wall and defining an interior volume;
a divider wall associated with the housing, located a first distance from the reservoir end wall, and having an inner surface that faces into the reservoir interior volume; and
a filter assembly includinga filter assembly housing with a housing filter portion having an inner surface that defines an inner perimeter and a filter supporting volume,a filter located within the filter supporting volume, anda bubble guard, including a bubble guard wall defining an outer perimeter that is radially inward of the inner perimeter of the housing filter portion and at least one bubble guard aperture that extends through the bubble guard wall, associated with the filter assembly housing such that the bubble guard wall is located in spaced relation to the filter and the at least one bubble guard aperture is located a second distance from the reservoir end wall that is less than the first distance.
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Abstract
An ambulatory infusing device including a housing, a reservoir defining an interior volume, a wall associated with the housing and having an inner surface that faces into the reservoir interior volume, and a filter assembly. The filter assembly may include a filter assembly housing with a housing filter portion having a filter supporting volume, a filter located within the filter supporting volume, and a bubble guard, including a bubble guard wall and at least one bubble guard aperture that extends through the bubble guard wall, associated with the filter assembly housing such that the bubble guard wall is located in spaced relation to the filter.
25 Citations
25 Claims
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1. An ambulatory infusing device, comprising:
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a housing; a reservoir including a reservoir end wall and defining an interior volume; a divider wall associated with the housing, located a first distance from the reservoir end wall, and having an inner surface that faces into the reservoir interior volume; and a filter assembly including a filter assembly housing with a housing filter portion having an inner surface that defines an inner perimeter and a filter supporting volume, a filter located within the filter supporting volume, and a bubble guard, including a bubble guard wall defining an outer perimeter that is radially inward of the inner perimeter of the housing filter portion and at least one bubble guard aperture that extends through the bubble guard wall, associated with the filter assembly housing such that the bubble guard wall is located in spaced relation to the filter and the at least one bubble guard aperture is located a second distance from the reservoir end wall that is less than the first distance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20)
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15. An ambulatory infusing device, comprising:
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a housing; a reservoir defining an interior volume; a divider wall associated with the housing and having an inner surface that faces into the reservoir interior volume and that includes a channel; and a filter assembly including a filter assembly housing with a housing filter portion having a side wall and an end wall that define a filter supporting volume, the side wall including a side wall aperture that extends through the side wall to the filter supporting volume and that is aligned with the channel, a filter located within the filter supporting volume, and a bubble guard, including a bubble guard wall and at least one bubble guard aperture that extends through the bubble guard wall, associated with the filter assembly housing such that the bubble guard wall is located in spaced relation to the filter.
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21. An ambulatory infusing device, comprising:
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a housing; a reservoir defining an interior volume; a divider wall associated with the housing and having an inner surface that faces into the reservoir interior volume; and a filter assembly including a filter assembly housing with a housing filter portion having a housing side wall and a housing end wall that define a filter supporting volume, a filter located within the filter supporting volume and spaced apart from the housing end wall, and at least one side wall aperture that extends through the housing side wall from the reservoir interior volume to the filter supporting volume. - View Dependent Claims (24, 25)
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22. An ambulatory infusing device, comprising:
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a housing; a reservoir defining an interior volume; a divider wall associated with the housing and having an inner surface that faces into the reservoir interior volume and that includes at least one channel; and a filter assembly including a filter assembly housing with a housing filter portion having a side wall and an end wall that define a filter supporting volume, a filter located within the filter supporting volume, and at least one side wall aperture that extends through the side wall to the filter supporting volume and that is aligned with the at least one channel.
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23. An ambulatory infusing device, comprising:
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a housing; a reservoir defining an interior volume; a divider wall associated with the housing and having an inner surface that faces into the reservoir interior volume; a filter assembly including a filter assembly housing with a housing filter portion having a side wall and an end wall that define a filter supporting volume, a filter located within the filter supporting volume, and at least one side wall aperture that extends through the side wall from the reservoir interior volume to the filter supporting volume; and a bubble guard, including a bubble guard wall and at least one bubble guard aperture that extends through the bubble guard wall, associated with the filter assembly housing such that a volume is defined between the bubble guard wall and the filter and the side wall aperture is aligned with the volume.
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Specification