Needle placement detection and security device and method
First Claim
1. A blood access device comprising:
- a conductive needle in electrical communication with a first lead and configured to pierce a patient'"'"'s skin and gain access to a blood vessel;
an insulative housing supporting a fluid communication junction between the needle and a flexible tube; and
a conductor in electrical communication with a second lead and having a first end connected to the insulative housing and a second end extending from the insulative housing in a direction coextensive with the needle such that (i) when the needle has gained access to the blood vessel, the conductor is electrically insulated from the conductive needle and (ii) if the needle is pulled so as to interrupt access with the blood vessel, the conductive needle and the conductor come into contact with each other, and wherein the conductive needle is radially offset from the longitudinal axis of the conductor for both (i) and (ii).
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Accused Products
Abstract
A blood access device includes (i) a conductive needle configured to pierce a patient'"'"'s skin and gain access to a blood vessel; (ii) an insulative housing supporting a fluid communication junction between the needle and flexible tube; (iii) a conductor having a first end connected to the insulative housing and a second end extending from the insulative housing in a direction coextensive with the needle such that (a) when the needle has gained access to the blood vessel the patient'"'"'s skin, the conductor is electrically insulated from the conductive needle and (b) if the needle is pulled so as to interrupt access with the blood vessel, the conductive needle and the conductor come into contact with each other.
41 Citations
21 Claims
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1. A blood access device comprising:
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a conductive needle in electrical communication with a first lead and configured to pierce a patient'"'"'s skin and gain access to a blood vessel; an insulative housing supporting a fluid communication junction between the needle and a flexible tube; and a conductor in electrical communication with a second lead and having a first end connected to the insulative housing and a second end extending from the insulative housing in a direction coextensive with the needle such that (i) when the needle has gained access to the blood vessel, the conductor is electrically insulated from the conductive needle and (ii) if the needle is pulled so as to interrupt access with the blood vessel, the conductive needle and the conductor come into contact with each other, and wherein the conductive needle is radially offset from the longitudinal axis of the conductor for both (i) and (ii). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A blood access device comprising:
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a conductive needle configured to gain access to a patient'"'"'s blood vessel; first and second leads, the first lead in electrical communication with the conductive needle; and a conductor in electrical communication with the second lead, the conductor extending in a same direction as the needle and moveable from an unactivated position to an activated position, wherein the conductor in the activated position is located such that (i) when the needle has gained access to the blood vessel, the conductive needle is electrically insulated from the conductor and (ii) if the needle is pulled so as to interrupt access with the blood vessel, the conductive needle and the conductor come into contact with each other. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification