US5131403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for obtaining blood using iontophoresis
Assignee: Vyteris Inc
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Filing: 1991-06-05
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Granted: 1992-07-21
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Expires: 2011-06-05
Abstract
Abstract The present invention provides a method for obtaining blood from a patient which comprises: (a) iontophoretic delivery of a bacteriocidal effective amount of a bacteriocide through the patient's skin, and (b) obtaining blood through the skin at the site of the iontophoretic delivery. The invention is particularly advantages in reducing the effects of contaminants responsible for large numbers of false positives. This advantageous is beneficial not only to a patient who benefits from an accurate diagnosis, but is also beneficial economically by eliminating unnecessary hospital stays, testing, and consulting.
Inventors
- 👤 John L. Haynes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:37
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/20; A61N1/30; A61B; A61B5/00; A61B5/15; A61B5/150007; A61B5/150015; A61B5/150022; A61B5/15003; A61B5/153; A61B5/154
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
39 words
A method for obtaining blood from a patient which comprises: (a) iontophoretic delivery of a bacteriocidal effective amount of a bacteriocide through the patient's skin, and (b) obtaining blood through the skin at the site of said iontophoretic delivery.
Claim 2
Independent Claim
39 words
A method for obtaining blood from a patient which comprises: (a) iontophoretic delivery of a bacteriocidal effective amount of a bacteriocide through the patient's skin, and (b) obtaining blood through the skin at the site of said iontophoretic delivery.
Claim 3
Dependent Claim
34 words
The method of claim 1 in which the obtaining step is performed by the blood collection means selected from the group consisting of test tubes, capillary tubes, needle and syringe, and evacuated collection means.
Claim 4
Dependent Claim
17 words
The method of claim 2 in which the means to collect blood is by needle and syringe.
Claim 5
Dependent Claim
17 words
The method of claim 2 in which the means to collect blood is by evacuated collection means.
Claim 6
Dependent Claim
27 words
The method of claim 1 in which the site of said iontophoretic delivery is pretreated with a composition selected from the group consisting of enhancers and anesthetics.
Claim 7
Dependent Claim
12 words
The method of claim 5 in which the composition is an enhancer.
Claim 8
Dependent Claim
12 words
The method of claim 5 in which the composition is an anesthetic.
Claim 9
Dependent Claim
28 words
The method of claim 1 in which the bacteriocide is selected from the group consisting of anesthetics, silver, iodine compounds, iodophors, quarternary ammonium compounds, and acetyl salicylic acid.
Claim 10
Dependent Claim
12 words
The method of claim 8 in which the bacteriocide is an anesthetic.
Claim 11
Dependent Claim
29 words
The method of claim 9 in which the anesthetic is selected from the group consisting of benzocaine, procaine, lidocaine, ropivacaine, etidocaine, bupivocaine, tetracaine, prilocaine, salt forms, and mixtures thereof.
Claim 12
Dependent Claim
11 words
The method of claim 10 in which the anesthetic is lidocaine.
Claim 13
Dependent Claim
11 words
The method of claim 10 in which the anesthetic is procaine.
Claim 14
Dependent Claim
11 words
The method of claim 10 in which the anesthetic is ropivacaine.
Claim 15
Dependent Claim
11 words
The method of claim 8 in which the bacteriocide is silver.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-07-21 | 1996-01-20 | 1996-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-21 | 2000-01-20 | 2000-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-21 | 2004-01-20 | 2004-07-21 | $7700.00 | Window Closed / Lapsed |