Process for making doses formulation of contrast media from concentrate
First Claim
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1. A process for the production of a diagnostic contrast medium, in which at least one X-ray contrast medium compound or at least one NMR contrast medium compound is mixed with an aqueous solution, comprising:
- delivering, under sterile conditions, a predetermined amount of at least a first contrast medium concentrate in an amount of 350-450 mg of I/ml of X-ray contrast medium compound or 0.5-4 mol/l of NMR contrast medium compound from at least a first container by a first pipe to a mixing chamber;
delivering a predetermined amount of diluent from a second container by a second pipe to the mixing chamber, wherein said predetermined amounts are mixed by stirring to form a physiologically compatible preparation; and
delivering the resultant mixture to a discharge station.
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Abstract
The invention relates to a process for preparing pharmaceutically acceptable dosage forms of contrast medium from concentrated contrast medium using a fluid delivery system suitable for removing predetermined amounts of fluids from a plurality of vessels and mixing same together.
109 Citations
36 Claims
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1. A process for the production of a diagnostic contrast medium, in which at least one X-ray contrast medium compound or at least one NMR contrast medium compound is mixed with an aqueous solution, comprising:
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delivering, under sterile conditions, a predetermined amount of at least a first contrast medium concentrate in an amount of 350-450 mg of I/ml of X-ray contrast medium compound or 0.5-4 mol/l of NMR contrast medium compound from at least a first container by a first pipe to a mixing chamber; delivering a predetermined amount of diluent from a second container by a second pipe to the mixing chamber, wherein said predetermined amounts are mixed by stirring to form a physiologically compatible preparation; and delivering the resultant mixture to a discharge station. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A kit comprising:
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a contrast medium concentrate in an amount of 350-450 mg of I/ml of X-ray contrast medium compound or 0.5-4 mol/l of NMR contrast medium compound in a first container with a content of 0.1-100 l; and an aqueous diluent in a second container with a content of 1-100 liters. - View Dependent Claims (8, 9, 10)
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11. A method of preparing a diagnostic contrast medium in dosage form, comprising:
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(a) providing a first vessel containing a concentrated flowable contrast medium; (b) providing a second vessel containing a pharmaceutically acceptable diluent fluid; (c) removing a predetermined amount of said concentrated fluid contrast medium from said first vessel via a first conduit means; (d) removing a predetermined amount of said pharmaceutically acceptable diluent via a second conduit means; and (e) delivering said amount of contrast medium and said amount of diluent to a mixing chamber wherein said contrast medium and diluent are mixed by stirring, thereby forming a contrast medium in a pharmaceutically acceptable dosage form. - View Dependent Claims (12, 13, 14)
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15. A method of preparing diagnostic contrast medium in dosage form, comprising:
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(a) connecting a first vessel and a second vessel to a device for combining predetermined amounts of fluids from separate vessels, said first vessel containing concentrated flowable contrast medium and said second vessel containing a pharmaceutically acceptable diluent fluid, (b) removing a predetermined amount of said concentrated contrast medium from said first vessel via a first conduit means; (c) removing a predetermined amount of said pharmaceutically acceptable diluent via a second conduit means; (d) delivering said amount of contrast medium and said amount of diluent to a mixing chamber and thereby form a contrast medium in a pharmaceutically acceptable dosage form.
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16. A method of preparing a diagnostic contrast medium in dosage form, comprising:
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(a) providing a device for combining predetermined amounts of fluids from separate vessels, said device comprising (i) means for connecting a first vessel; (ii) means for connecting a second vessel; (iii) a first conduit means for removing flowable material from said first vessel; (iv) a second conduit means for removing flowable material from said second vessel; (v) a first fluid flow regulation means for controlling fluid flow in said first conduit means; (vi) a second fluid flow regulation means for controlling fluid flow in said second conduit means; (vii) a mixing chamber, in fluid communication with said first conduit means and second conduit means, for receiving amounts of flowable material from said first vessel and said second vessel, which is provided with a means for detecting the concentration of contrast medium contained therein by sensing the density of the resultant mixture; (viii) control means, in connection with said means for detecting and said fluid flow regulation means in said first and second conduit means, for regulating flow into said mixing chamber and determining the amounts of material removed from said first and second vessels and/or delivered to said mixing chamber and/or the concentration in said mixing chamber; (b) connecting a first vessel containing concentrated flowable medium to said contact means for connecting a first vessel; (c) connecting a second vessel containing a pharmaceutically acceptable fluid diluent to said means for connecting a second vessel; (d) removing contrast medium and fluid diluent from said first and second vessels via said first and second conduit means and delivering said fluid contrast agent in fluid diluent to said mixing chamber, whereby the resultant combination of said fluid contrast medium and said fluid diluent forms a pharmaceutically acceptable dosage form of said contrast medium. - View Dependent Claims (17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31)
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20. In a method comprising preparing a dosage form of diagnostic contrast medium, the improvement wherein
an amount of concentrated flowable contrast medium is removed from a first vessel and an amount of fluid is removed from a second vessel by a fluid delivery device for removing predetermined amounts of fluid from a plurality of vessels, and said amounts of contrast medium and fluid are combined in a mixing chamber and mixed by stirring therein to form a pharmaceutically acceptable dosage form of contrast medium.
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32. In a method comprising performing an X-ray diagnostic examination upon a patient, the improvement wherein an X-ray contrast agent is administered to the patient by:
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(a) providing a first vessel containing a concentrated flowable contrast medium; (b) providing a second vessel containing a pharmaceutically acceptable diluent fluid; (c) removing a predetermined amount of said concentrated fluid contrast medium from said first vessel via a first conduit means; (d) removing a predetermined amount of said pharmaceutically acceptable diluent via a second conduit means; (e) delivering said amount of contrast medium and said amount of diluent to a mixing chamber wherein they are mixed by stirring, thereby forming a contrast medium in a pharmaceutically acceptable dosage form; and (f) administering said contrast medium dosage form to a patient.
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33. In a method comprising performing NMR imaging of a patient, the improvement wherein an NMR contrast agent is administered to the patient by:
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(a) providing a first vessel containing a concentrated flowable contrast medium; (b) providing a second vessel containing a pharmaceutically acceptable diluent fluid; (c) removing a predetermined amount of said concentrated fluid contrast medium from said first vessel via a first conduit means; (d) removing a predetermined amount of said pharmaceutically acceptable diluent via a second conduit means; (e) delivering said amount of contrast medium and said amount of diluent to a mixing chamber wherein they are mixed by stirring, thereby forming a contrast medium in a pharmaceutically acceptable dosage form; and (f) administering said contrast medium dosage form to a patient.
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34. A process for the production of a diagnostic contrast medium in which at least one ultrasound contrast medium compound is mixed with an aqueous solution, comprising:
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delivering, under sterile conditions, a predetermined amount of at least a first ultrasound contrast medium concentrate from at least a first container by a first pipe to a mixing chamber; delivering a predetermined amount of a diluent from a second container by a second pipe to the mixing chamber, wherein said predetermined amounts are mixed by stirring to form a physiologically compatible preparation; and delivering the resultant mixture to a discharge station. - View Dependent Claims (35, 36)
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Specification