Implantable therapeutic substance delivery device
First Claim
1. An implantable therapeutic substance delivery device comprising:
- a first housing adapted for subcutaneous implantation, the first housing comprising an implantable, hermetically sealed unit;
a second housing adapted for subcutaneous implantation, the second housing comprising an implantable, hermetically sealed unit;
a coupling connecting the first housing to the second housing;
a fluid reservoir located within one of the first housing and the second housing;
control electronics located within one of the first housing and the second housing;
a power source located within one of the first housing and the second housing, the power source operably connected to the control electronics;
an infusion outlet located on one of the first housing and the second housing; and
a solenoid pump mechanism located within one of the first housing and the second housing, wherein the pump mechanism comprises a piston and is operably connected to the fluid reservoir and the infusion outlet such that the pump mechanism is capable of delivering a therapeutic substance in the fluid reservoir to the infusion outlet;
wherein the pump mechanism and the fluid reservoir are not in the same housing.
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Accused Products
Abstract
A medical device known as an implantable therapeutic substance delivery device is configured for implanting in humans to deliver a therapeutic substance such as pharmaceutical compositions, genetic materials, and biologics to treat a variety of medical conditions such as pain, spastisity, cancer, and many other conditions. The therapeutic substance delivery device has a permanent magnet solenoid pump that is energy efficient, accurate, small, compatible with therapeutic substances, and has many other improvements. The implantable therapeutic substance delivery device has a housing, a therapeutic substance reservoir, a power source, electronics, and a permanent magnet solenoid pump. The therapeutic substance reservoir is configured to contain a therapeutic substance and is coupled to the housing. The power source is carried in the housing to power the electronics and solenoid pump. The electronics are coupled to the solenoid pump and the solenoid pump is coupled to the therapeutic substance reservoir. The permanent magnet solenoid pump is configured for pumping therapeutic substance from the therapeutic substance reservoir through an infusion outlet at a programmed infusion rate. Many embodiments of the permanent magnet solenoid pump and its methods of operation are possible.
102 Citations
20 Claims
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1. An implantable therapeutic substance delivery device comprising:
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a first housing adapted for subcutaneous implantation, the first housing comprising an implantable, hermetically sealed unit; a second housing adapted for subcutaneous implantation, the second housing comprising an implantable, hermetically sealed unit; a coupling connecting the first housing to the second housing; a fluid reservoir located within one of the first housing and the second housing; control electronics located within one of the first housing and the second housing; a power source located within one of the first housing and the second housing, the power source operably connected to the control electronics; an infusion outlet located on one of the first housing and the second housing; and a solenoid pump mechanism located within one of the first housing and the second housing, wherein the pump mechanism comprises a piston and is operably connected to the fluid reservoir and the infusion outlet such that the pump mechanism is capable of delivering a therapeutic substance in the fluid reservoir to the infusion outlet; wherein the pump mechanism and the fluid reservoir are not in the same housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An implantable therapeutic substance delivery device comprising:
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a first housing, the first housing comprising an implantable, hermetically sealed unit; a second housing, the second housing comprising an implantable, hermetically sealed unit; a fluid reservoir located within one of the first housing and the second housing; control electronics located within one of the first housing and the second housing; a power source located within one of the first housing and the second housing, the power source operably connected to the control electronics; a pump mechanism located within one of the first housing and the second housing, wherein the pump mechanism comprises a solenoid pump comprising a piston; a fluid coupling extending between the first housing to the second housing, wherein the fluid coupling operably connects the fluid reservoir and the pump mechanism; and an infusion outlet located on one of the first housing and the second housing, wherein the pump mechanism is operably connected to the fluid reservoir and the infusion outlet such that the pump mechanism is capable of delivering a therapeutic substance in the fluid reservoir to the infusion outlet. - View Dependent Claims (11, 12, 13, 14)
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15. An implantable therapeutic substance delivery device comprising:
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a first housing adapted for subcutaneous implantation, the first housing comprising an implantable, hermetically sealed unit; a second housing adapted for subcutaneous implantation, the second housing comprising an implantable, hermetically sealed unit; a fluid reservoir located within the first housing; control electronics located within the second housing; a power source located within the second housing, the power source operably connected to the control electronics; a pump mechanism located within the second housing, wherein the pump mechanism comprises a solenoid pump comprising a piston; an infusion outlet located on the second housing, wherein the pump mechanism is operably connected to the fluid reservoir and the infusion outlet such that the pump mechanism is capable of delivering a therapeutic substance in the fluid reservoir to the infusion outlet; and a fluid coupling extending between the first housing to the second housing, wherein the fluid coupling operably connects the fluid reservoir and the pump mechanism. - View Dependent Claims (16)
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17. A method for infusing a therapeutic substance to an internal infusion site, the method comprising:
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subcutaneously implanting a therapeutic substance delivery device, wherein the device comprises; a first housing comprising an implantable, hermetically sealed unit subcutaneously implanted in a subject; a second housing comprising an implantable, hermetically sealed unit subcutaneously implanted in the subject; a fluid reservoir located within the first housing, the fluid reservoir comprising a therapeutic substance located therein; control electronics located within the second housing; a power source located within the second housing, the power source operably connected to the control electronics; a solenoid pump mechanism comprising a piston, the solenoid pump mechanism located within the second housing; and subcutaneously implanting a coupling extending between the first housing and the second housing; operating the pump mechanism to deliver the therapeutic substance in the fluid reservoir to an infusion site located outside of the first housing and the second housing, wherein the therapeutic substance passes from the fluid reservoir to the pump mechanism through the coupling; and controlling the pump mechanism using the control electronics. - View Dependent Claims (18, 19, 20)
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Specification