Disposable needle assembly having sensors formed therein permitting the simultaneous drawing and administering of fluids and method of forming the same
First Claim
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1. A needle assembly for use in connection with treating a patient for administering fluids to the patient and drawing fluids from the patient, comprising:
- an elongated needle shaft having a first end and a second end;
an insertion tip located at a first end of the elongated needle shaft to facilitate insertion of the needle assembly into a vessel of the patient;
at least one fluid drawing passageway formed in the elongated needle shaft for withdrawing fluid from the patient, wherein the at least one fluid drawing passageway extends from the second end of the elongated needle shaft to a fluid drawing opening in the elongated needle shaft, wherein fluid within the vessel is withdrawn through the at least one fluid drawing passageway;
at least one fluid supply passageway formed in the elongated needle shaft for supplying fluid to the patient, wherein the at least one fluid supply passageway extends from the second end of the elongated needle shaft to a fluid supply opening in the elongated needle shaft; and
at least one sensor assembly disposed within the elongated needle shaft, wherein the at least one sensor assembly senses at least one predetermined condition of the patient.
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Abstract
A micro-injection molded disposable needle assembly having more than one passageway formed therein to permit the simultaneous drawing and administering of fluids through separate passageways is disclosed. The micro-injection molded disposable assembly includes one or more sensors disposed therein for measuring and monitoring one or more desired body or surrounding environmental conditions. A method of forming the disposable needle from an elastomeric material using micro-injection molding is also disclosed.
95 Citations
27 Claims
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1. A needle assembly for use in connection with treating a patient for administering fluids to the patient and drawing fluids from the patient, comprising:
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an elongated needle shaft having a first end and a second end;
an insertion tip located at a first end of the elongated needle shaft to facilitate insertion of the needle assembly into a vessel of the patient;
at least one fluid drawing passageway formed in the elongated needle shaft for withdrawing fluid from the patient, wherein the at least one fluid drawing passageway extends from the second end of the elongated needle shaft to a fluid drawing opening in the elongated needle shaft, wherein fluid within the vessel is withdrawn through the at least one fluid drawing passageway;
at least one fluid supply passageway formed in the elongated needle shaft for supplying fluid to the patient, wherein the at least one fluid supply passageway extends from the second end of the elongated needle shaft to a fluid supply opening in the elongated needle shaft; and
at least one sensor assembly disposed within the elongated needle shaft, wherein the at least one sensor assembly senses at least one predetermined condition of the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A disposable needle assembly for use in connection with treating a patient, wherein the disposable needle assembly is capable of simultaneously administering fluids to the patient and drawing fluids from the patient, comprising:
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an elongated needle shaft having a first end and a second end;
an insertion tip formed in a first end of the elongated needle shaft to facilitate insertion of the needle assembly into a vessel of the patient;
a fluid drawing passageway formed in the elongated needle shaft for withdrawing a first fluid from the patient, wherein the fluid drawing passageway extends from the second end of the elongated needle shaft to a fluid drawing opening in the elongated needle shaft, wherein first fluid within the vessel is withdrawn through the fluid drawing passageway;
a fluid supply passageway formed in the elongated needle shaft for supplying a second fluid to the patient, wherein the fluid supply passageway extends from the second end of the elongated needle shaft to a fluid supply opening in the elongated needle shaft, wherein the fluid drawing opening is spaced from the fluid supply opening to prevent mixing of the first fluid and the second fluid adjacent the fluid drawing opening; and
at least one sensor assembly formed within the elongated needle shaft, wherein the at least one sensor assembly senses at least one predetermined condition of the patient. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A method of forming a disposable needle assembly having an elongated needle shaft having at least one passageway formed therein and a connector assembly secured thereto, comprising:
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forming the elongated needle shaft by micro-injection molding;
forming the connector assembly; and
securing the connector assembly to the elongated needle shaft. - View Dependent Claims (23, 24, 25, 26)
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27. A method of treating a patient comprising:
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inserting a disposable needle assembly into a vessel of the patient;
withdrawing a sample of blood from the patient through a first passageway formed in the needle assembly;
supplying an intravenous fluid to the patient through a second passageway formed in the needle assembly; and
monitoring at least one physical condition of the patient through at least one sensor assembly located within the needle assembly.
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Specification