Multipatient fluid dispensing
First Claim
Patent Images
1. A system for delivering sterile fluid to a plurality of patients, comprising:
- (a) a source of sterile fluid;
(b) a fluid delivery system for directing the sterile fluid from the source to a point of use for each of a plurality of patients, said fluid delivery system comprising;
(i) backflow prevention means for allowing flow in a forward direction while preventing flow in a backward direction; and
(ii) a fluid path, said fluid path including a first portion that is reusable for a plurality of patients and a second portion that is disposable,wherein a new disposable portion is used for each successive patient,(c) the disposable portion comprises flow interrupting means in said fluid delivery system for causing the flow of the fluid to be discontinuous so that fluid free gaps always exist in the disposable portion of the delivery system when there is no forward flow, to preclude cross-contamination of the source of the sterile fluid, and(d) wherein said reusable portion and said disposable portion cooperate to preclude flow of contaminants from a patient to the source of sterile fluid, to any reusable portion of the system, or to successive patients.
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Accused Products
Abstract
A system for delivering sterile fluid to a patient, while preventing cross-contamination, in which flow interrupting means are provided which basically create regions where no fluid exists in the comprehensive or over-all quality of material that is flowing from a fluid source to a patient.
264 Citations
27 Claims
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1. A system for delivering sterile fluid to a plurality of patients, comprising:
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(a) a source of sterile fluid; (b) a fluid delivery system for directing the sterile fluid from the source to a point of use for each of a plurality of patients, said fluid delivery system comprising; (i) backflow prevention means for allowing flow in a forward direction while preventing flow in a backward direction; and (ii) a fluid path, said fluid path including a first portion that is reusable for a plurality of patients and a second portion that is disposable, wherein a new disposable portion is used for each successive patient, (c) the disposable portion comprises flow interrupting means in said fluid delivery system for causing the flow of the fluid to be discontinuous so that fluid free gaps always exist in the disposable portion of the delivery system when there is no forward flow, to preclude cross-contamination of the source of the sterile fluid, and (d) wherein said reusable portion and said disposable portion cooperate to preclude flow of contaminants from a patient to the source of sterile fluid, to any reusable portion of the system, or to successive patients. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for delivering sterile fluid to a patient, comprising:
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(a) a source of sterile fluid; (b) a fluid delivery system for directing the sterile fluid from the source to a point of use in conjunction with a patient, and (c) flow interrupting means in said fluid delivery system for causing the flow of the fluid to be discontinuous so that fluid free gaps exist in the delivery system to preclude cross-contamination, wherein said fluid delivery system includes means for directing fluid to multiple patients, and wherein each said fluid directing means includes said flow interrupting means. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. In a system for providing a plurality of individual outlets for the sequential delivery of sterile fluid free of cross-contamination, the combination comprising:
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a) a source of sterile fluid; b) a sterile fluid conducting network connected to said source of sterile fluid, said conducting network including a fluid supply manifold and a plurality of individual outlet means connected thereto; and
,c) flow control means disposed within said fluid conducting network effective to cause flow of the fluid in said conducting network to exist as discrete quantities. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A system for delivering sterile fluid to a plurality of patients, comprising:
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(a) a source of sterile fluid; (b) a fluid delivery system for directing the sterile fluid from the source to a point of use for each of a plurality of patients, said fluid delivery system comprising; (i) backflow prevention means for allowing flow in a forward direction while preventing flow in a backward direction; and (ii) a fluid path, said fluid path comprising flow interrupting means in said fluid delivery system for causing the flow of the fluid to be discontinuous so that fluid free gaps always exist in the delivery system, to preclude cross-contamination of the source of the sterile fluid, and (c) wherein said flow interrupting means precludes flow of contaminants from a patient to the source of sterile fluid, to any reusable portion of the system, or to successive patients.
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24. In a system for delivering sterile fluid to a patient, the combination comprising:
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(a) a source of sterile fluid; (b) a fluid delivery system for directing the sterile fluid from the source to a point of use in conjunction with a patient; and (c) flow interrupting means comprising a hydrophobic surface over which the fluid is caused to flow. - View Dependent Claims (25, 26)
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27. In a system for delivering sterile fluid to a patient, the combination comprising:
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(a) a source of sterile fluid; (b) a fluid delivery system for directing the sterile fluid from the source to a point of use in conjunction with a patient; and (c) valve having fluid flow control means that is positively biased towards a flow interrupting position.
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Specification