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US4820732A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and compositions for reducing dysfunction in angioplasty procedures

Assignee: SPHERES RESEARCH PARTNERS
•
Filing: 1986-04-04
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Granted: 1989-04-11
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Expires: 2006-04-04
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Abstract

Abstract A method for reducing dysfunction in angioplasty procedures and particularly, in myocardial angioplasty procedures in human beings is desired. The method involves the introduction of a selected amount of intra-arterial prostaglandin compound into an artery, such as a coronary artery, in which an angioplasty procedure is to occur. The prostaglandin compound will provide cyto-protection and provide antithrombotic effects and antiplatelet effects and antispasmatic effects. The prostaglandin compound is administered in a pharmacological amount, that is, an amount substantially greater than the prostaglandin which would be generated by a normal myocardial artery when insulated and thus, constitutes an administration substantially greater than an amount which would be administered in a replacement therapy. A composition is also provided for reducing dysfunction in angioplasty procedures and comprises a selected amount of a carrier and a prostaglandin compound carried in a specified amount and which carrier does not alter the prostaglandin compound and releases the prostaglandin compound at a rate sufficient to dilate blood vessels to thereby produce the required efficacy. A prepackaged combination of components provides for the complete administration of the prostaglandin compound before, during and after the angioplasty procedure.

Inventors

  • 👤 William E. Shell
  • 👤 Jackie R. See

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 12:41
CPC Classifications
A; A61; A61K; A61K49/00; A61K49/04; A61K31/00; A61K31/557

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 62 words
A method for preventing or treating arterial dysfunction resulting from angioplasty procedures in an artery of human beings, said method comprising: initially introducing into said artery prostaglandin E 1 or a prostaglandin pharmacologically equivalent thereto, in an amount of at least 25 nanograms prior to beginning said procedure and then continuing to introduce into the artery the prostaglandin compound during said procedure.
Claim 2
Independent Claim 62 words
A method for preventing or treating arterial dysfunction resulting from angioplasty procedures in an artery of human beings, said method comprising: initially introducing into said artery prostaglandin E 1 or a prostaglandin pharmacologically equivalent thereto, in an amount of at least 25 nanograms prior to beginning said procedure and then continuing to introduce into the artery the prostaglandin compound during said procedure.
Claim 3
Dependent Claim 15 words
The method of claim 1 wherein said artery is a myocardial artery or coronary artery.
Claim 4
Dependent Claim 37 words
The method of claim 1 wherein said prostaglandin compound is introduced in an amount to produce an efficacy approximately equivalent to that produced by the administration of about 80 nanograms to about 260 nanograms of prostaglandin E-1.
Claim 5
Dependent Claim 30 words
The method of claim 1 wherein said prostaglandin compound is additionally administered by intravenous means for a period ending about 9 hours to about 15 hours after said angioplasty procedure.
Claim 6
Dependent Claim 21 words
The method of claim 4 wherein said intravenous administration occurs during a period ending about 12 hours after said angioplasty procedure.
Claim 7
Dependent Claim 52 words
The method of claim 4 wherein the amount of prostaglandin compound administered intraveneously is calculated on the basis of an amount per kilogram of body weight to produce the efficacy produced by the intravenous administration of about 10 to about 100 nanograms per kilogram of body weight per minute of prostaglandin E-1.
Claim 8
Dependent Claim 50 words
The method of claim 6 wherein the amount of prostaglandin compound is calculated on the basis of an amount per kilogram of body weight to produce the efficacy produced by the intravenous administration of about 15 to about 40 nanograms per kilogram of body weight per minute of prostaglandin E-1.
Claim 9
Dependent Claim 22 words
The method of claim 1 wherein said prostaglandin compound is selected from the group consisting of prostaglandin E-1, prostaglandin I-2 and ciprostene.
Claim 10
Dependent Claim 12 words
The method of claim 8 wherein said prostaglandin compound is prostaglandin E-1.

References Cited (Backward Citations)

US3966962A Cited
US4103026A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-04-10 1992-10-10 1993-04-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-04-10 1996-10-10 1997-04-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-04-10 2000-10-10 2001-04-11 $7700.00 Window Closed / Lapsed

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