Low profile inlet valve for a piston pump therapeutic substance delivery device
First Claim
1. An implantable therapeutic substance delivery device with a low profile inlet valve, comprising:
- a housing;
a therapeutic substance reservoir coupled to the housing, the therapeutic substance reservoir having a reservoir outlet;
a power source carried in the housing;
electronics carried in the housing and coupled to the power source;
means for pumping coupled to the electronics and coupled to the reservoir outlet, the means for pumping configured to pump a therapeutic substance from the therapeutic substance reservoir through an infusion outlet at a programmed rate; and
,means for inlet valving configured to control the flow of therapeutic substance from the reservoir outlet into a pumping chamber.
1 Assignment
0 Petitions
Accused Products
Abstract
Low profile inlet valve embodiments for a piston pump therapeutic substance infusion device are disclosed that reduce dead volume, occupies little residential space, operates rapidly, and have many other improvements. The therapeutic substance infusion device has a housing, a therapeutic substance reservoir, a power source carried in the housing, electronics, a piston pump, and an inlet valve. The piston pump is configured for pumping therapeutic substance from the therapeutic substance reservoir through an infusion port at a programmed rate. The inlet valve is in fluid communication with a reservoir outlet to control the flow of therapeutic substance into the piston pump. The inlet valve has a substantially coplanar valve surface and valve spring. Many embodiments of the low profile inlet valve and its methods of operation are possible.
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Citations
18 Claims
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1. An implantable therapeutic substance delivery device with a low profile inlet valve, comprising:
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a housing; a therapeutic substance reservoir coupled to the housing, the therapeutic substance reservoir having a reservoir outlet; a power source carried in the housing; electronics carried in the housing and coupled to the power source; means for pumping coupled to the electronics and coupled to the reservoir outlet, the means for pumping configured to pump a therapeutic substance from the therapeutic substance reservoir through an infusion outlet at a programmed rate; and
,means for inlet valving configured to control the flow of therapeutic substance from the reservoir outlet into a pumping chamber. - View Dependent Claims (2, 3, 4)
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5. An implantable therapeutic substance delivery device with a low profile inlet valve, comprising:
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a housing; a therapeutic substance reservoir coupled to the housing, the therapeutic substance reservoir having a reservoir outlet; a power source carried in the housing; electronics carried in the housing and coupled to the power source; means for pumping coupled to the electronics and coupled to the reservoir outlet, the means for pumping configured to pump a therapeutic substance from the therapeutic substance reservoir through an infusion outlet at a programmed rate; and
,means for inlet valving configured to control the flow of therapeutic substance from the reservoir outlet into a pumping chamber, wherein the means for inlet valving is configured to control the flow of therapeutic substance from an inlet chamber into a pumping chamber. - View Dependent Claims (6, 7, 8)
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9. An implantable therapeutic substance delivery device with a low profile inlet valve, comprising:
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a housing; a therapeutic substance reservoir coupled to the housing, the therapeutic substance reservoir having a reservoir outlet; a power source carried in the housing; electronics carried in the housing and coupled to the power source; means for pumping coupled to the electronics and coupled to the reservoir outlet, the means for pumping configured to pump a therapeutic substance from the therapeutic substance reservoir through an infusion outlet at a programmed rate; and
,means for inlet valving configured to control the flow of therapeutic substance from the reservoir outlet into a pumping chamber, wherein the means for inlet valving is configured to facilitate the means for pumping'"'"'s ability to pass air. - View Dependent Claims (10, 11, 12)
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13. An implantable therapeutic substance delivery device with a low profile inlet valve, comprising:
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a housing; a therapeutic substance reservoir coupled to the housing, the therapeutic substance reservoir having a reservoir outlet; a power source carried in the housing; electronics carried in the housing and coupled to the power source; means for pumping coupled to the electronics and coupled to the reservoir outlet, the means for pumping configured to pump a therapeutic substance from the therapeutic substance reservoir through an infusion outlet at a programmed rate; and
,means for inlet valving configured to control the flow of therapeutic substance from the reservoir outlet into a pumping chamber, wherein the means for inlet valving is configured to be mechanically held closed when the means for pumping is in an actuated position to substantially prevent unintended infusion of therapeutic substance. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification