Systems for managing reservoir chamber pressure
First Claim
1. A fluid infusion device, comprising:
- a housing having a reservoir chamber that receives a fluid reservoir and a pump chamber;
a drive system contained within the pump chamber of the housing, the drive system including a slide that is movable relative to the fluid reservoir, the slide including a proximal slide end that cooperates with a portion of the fluid reservoir to dispense fluid from the fluid reservoir, the proximal slide end having a projection;
a seal disposed between the reservoir chamber and the pump chamber that defines an opening and the slide is movable relative to the seal through the opening; and
a pressure management system defined in the projection of the slide, the pressure management system including at least one bore defined through the projection, the at least one bore spaced a distance apart from a perimeter of the projection to vent air from the reservoir chamber into the pump chamber.
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Accused Products
Abstract
Systems for managing pressure in a fluid reservoir chamber of a fluid infusion device are provided. For example, a fluid infusion device comprises a housing having a reservoir chamber that receives a fluid reservoir and a pump chamber. The fluid infusion device also includes a drive system contained within the pump chamber, and the drive system includes a slide that is movable relative to the fluid reservoir. The slide includes a proximal slide end that cooperates with a portion of the fluid reservoir to dispense fluid, and the proximal slide end has a projection. The fluid infusion device includes a pressure management system defined in the projection of the slide. The pressure management system includes at least one bore defined through the projection. The at least one bore is spaced a distance apart from a perimeter of the projection to vent air from the reservoir chamber into the pump chamber.
105 Citations
19 Claims
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1. A fluid infusion device, comprising:
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a housing having a reservoir chamber that receives a fluid reservoir and a pump chamber; a drive system contained within the pump chamber of the housing, the drive system including a slide that is movable relative to the fluid reservoir, the slide including a proximal slide end that cooperates with a portion of the fluid reservoir to dispense fluid from the fluid reservoir, the proximal slide end having a projection; a seal disposed between the reservoir chamber and the pump chamber that defines an opening and the slide is movable relative to the seal through the opening; and a pressure management system defined in the projection of the slide, the pressure management system including at least one bore defined through the projection, the at least one bore spaced a distance apart from a perimeter of the projection to vent air from the reservoir chamber into the pump chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A fluid infusion device, comprising:
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a housing having a reservoir chamber that receives a fluid reservoir and a pump chamber; a drive system contained within the pump chamber of the housing, the drive system including a slide that is movable relative to the fluid reservoir, the slide including a proximal slide end that cooperates with a portion of the fluid reservoir to dispense fluid from the fluid reservoir, the proximal slide end having a projection with a counterbore; a seal disposed between the reservoir chamber and the pump chamber that defines an opening and the slide is movable relative to the seal through the opening; and a pressure management system defined in the counterbore of the projection of the slide, the pressure management system including at least one bore defined through the counterbore, the at least one bore spaced a distance apart from a perimeter of the counterbore to vent air from the reservoir chamber into the pump chamber. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A fluid infusion device, comprising:
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a housing having a reservoir chamber that receives a fluid reservoir and a pump chamber; a drive system contained within the pump chamber of the housing, the drive system including a slide that is movable relative to the fluid reservoir, the slide including a proximal slide end that cooperates with a portion of the fluid reservoir to dispense fluid from the fluid reservoir, the proximal slide end having a projection with a counterbore; a seal disposed between the reservoir chamber and the pump chamber that defines an opening and the slide is movable relative to the seal through the opening; and a pressure management system defined in the projection of the slide, the pressure management system including at least one bore defined through a surface of the counterbore and a membrane, the at least one bore spaced a distance apart from a perimeter of the counterbore to vent air from the reservoir chamber into the pump chamber and the membrane is coupled to the surface of the counterbore to substantially cover the at least one bore. - View Dependent Claims (17, 18, 19)
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Specification