Patent US2632091A successfully refreshed from Google Patents.
Patent US3608549A successfully refreshed from Google Patents.
US3608549A
Expired / Lapsed
US
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Method of administering drugs and capsule therefor
Assignee: Boston Children's Hospital
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Filing: 1970-01-15
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Granted: 1971-09-28
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Expires: 1990-01-15
Abstract
Abstract An implantable capsule for delivering a medicament to live animals having a permeable elastomeric wall and containing a mixture of medicament and matrix material which melts between 40* C. and 47* C. The capsule also contains a metal coil capable of being inductively heated by a coil external to the body. When delivery of medicament is desired, the coil is inductively heated to melt the mixture and effect diffusion of medicament through the permeable wall.
Inventors
- 👤 Edward W Merrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:54
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0019; A61K9/0024; A61K9/0002; A61K9/0009; A61M; A61M31/00; A61M31/002
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
17 words
The capsule of claim 1 wherein the entire wall is made from a permeable cross-linked elastomeric composition.
Claim 2
Dependent Claim
31 words
The process for administering a medicament which comprises implanting in a live animal the capsule of claim 1 and thereafter subjecting the capsule to an induction field to melt the matrix.
Claim 3
Dependent Claim
31 words
The process for administering a drug which comprises implanting in a live animal the capsule of claim 2, and thereafter subjecting the capsule to an induction field to melt the matrix.
Claim 4
Dependent Claim
16 words
The capsule of claim 1 wherein the permeable wall is formed of a cross-linked silicone rubber.
Claim 5
Dependent Claim
16 words
The capsule of claim 2 wherein the permeable wall is formed of a cross-linked silicone rubber.
Claim 6
Dependent Claim
16 words
The process of claim 3 wherein the permeable wall is formed of a cross-linked silicone rubber.
Claim 7
Dependent Claim
16 words
The process of claim 5 wherein the permeable wall is formed of a cross-linked silicone rubber.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |