Patent US4501582A successfully refreshed from Google Patents.
US4501582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perfusion kit
Assignee: Individual
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Filing: 1983-12-05
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Granted: 1985-02-26
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Expires: 2003-12-05
Abstract
Abstract A kit for the perfusion of sodium nitroprusside and sodium thiosulfate contains as components (1) a container of sodium thiosulfate aqueous solution, (2) a light-opaque syringe, (3) light-opaque tubing, and (4) an ampoule containing lyophilized sodium nitroprusside. Alternatively the kit includes (1) a light-opaque container of mixed sodium nitroprusside-sodium thiosulfate solution, (2) a light-opaque syringe, and (3) light-opaque tubing.
Inventors
- 👤 Volker Schulz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:27
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0019; A61K33/00; A61K33/24; A61K33/26; A61P; A61P9/00; A61P9/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
126 words
Sodium nitroprusside-sodium thiosulfate perfusion kit comprising the following components: 1. a sealed container of sodium thiosulfate aqueous solution, said container having a penetrable closure, 2. a syringe of light-opaque material with attached cannula adapted to penetrate said closure, to obtain a prescribed volume of said solution, 3. perfusion tubing of light-opaque plastic material adapted to be attached to said syringe, and 4. a sealed container of dry solid sodium nitroprusside adapted to be dissolved by said aqueous solution to form a mixed stable aqueous solution in said syringe, the amount of said sodium nitroprusside being from 1/3 to 1/20 of the weight of said sodium thiosulfate present in said solution in said syringe, wherein said mixed stable aqueous solution may be safely injected into a patient.
Claim 2
Dependent Claim
126 words
Sodium nitroprusside-sodium thiosulfate perfusion kit comprising the following components: 1. a sealed container of sodium thiosulfate aqueous solution, said container having a penetrable closure, 2. a syringe of light-opaque material with attached cannula adapted to penetrate said closure, to obtain a prescribed volume of said solution, 3. perfusion tubing of light-opaque plastic material adapted to be attached to said syringe, and 4. a sealed container of dry solid sodium nitroprusside adapted to be dissolved by said aqueous solution to form a mixed stable aqueous solution in said syringe, the amount of said sodium nitroprusside being from 1/3 to 1/20 of the weight of said sodium thiosulfate present in said solution in said syringe, wherein said mixed stable aqueous solution may be safely injected into a patient.
Claim 3
Dependent Claim
86 words
Sodium nitroprusside-sodium thiosulfate perfusion kit comprising the following components: 1. a sealed container of light-opaque material containing a mixed stable aqueous solution of sodium thiosulfate and sodium nitroprusside, said container having a penetrable closure, 2. a syringe of light-opaque material with attached cannula adapted to penetrate said closure, to obtain a prescribed volume of said mixed aqueous solution, and 3. perfusion tubing of light-opaque plastic material adapted to be attached to said syringe wherein said stable mixed aqueous solution may be safely injected into a patient.
Claim 4
Dependent Claim
86 words
Sodium nitroprusside-sodium thiosulfate perfusion kit comprising the following components: 1. a sealed container of light-opaque material containing a mixed stable aqueous solution of sodium thiosulfate and sodium nitroprusside, said container having a penetrable closure, 2. a syringe of light-opaque material with attached cannula adapted to penetrate said closure, to obtain a prescribed volume of said mixed aqueous solution, and 3. perfusion tubing of light-opaque plastic material adapted to be attached to said syringe wherein said stable mixed aqueous solution may be safely injected into a patient.
Claim 5
Independent Claim
55 words
The method of administering to a patient a mixed stable aqueous solution of sodium nitroprusside and sodium thiosulfate which comprises forming said solution within a syringe of light-opaque material and attaching said syringe containing said solution by means of light-opaque tubing to a perfusor or catheter for intravenous delivery of said solution to said patient.
Claim 6
Independent Claim
55 words
The method of administering to a patient a mixed stable aqueous solution of sodium nitroprusside and sodium thiosulfate which comprises forming said solution within a syringe of light-opaque material and attaching said syringe containing said solution by means of light-opaque tubing to a perfusor or catheter for intravenous delivery of said solution to said patient.
Claim 7
Dependent Claim
42 words
The method as claimed in claim 3 in which the concentration of sodium thiosulfate in said mixed solution is from 0.1 to 10% by weight and in which the weight ratio of sodium nitroprusside to sodium thiosulfate is from 1:3 to 1:20.
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) | 1988-02-26 | 1988-08-27 | 1989-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-26 | 1992-08-27 | 1993-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-26 | 1996-08-27 | 1997-02-26 | $7700.00 | Window Closed / Lapsed |