Medical access port, systems and methods of use thereof
First Claim
Patent Images
1. A method of treating a subject, comprising:
- penetrating a first needle outwardly through skin of the subject from within the subject from a first needle first use position of an access port implanted within the subject such that the first needle is exposed outside the subject,wherein the access port comprises an access port body containing the first needle and a needle shift mechanism, the needle shift mechanism movable within the access port body to move the at least one needle to a plurality of different use positions of the access port body, wherein the needle shift mechanism is rotatable around an axis of rotation, and the at least one needle is extendable and retractable along the axis of rotation; and
wherein penetrating the first needle outwardly through skin of the subject is performed while extending the at least one needle along the axis of rotation;
introducing a first fluid into the subject through the first needle;
withdrawing the first needle inwardly through the skin of the subject from outside the subject such that the first needle is concealed within the subject and within the access port body, wherein withdrawing the first needle inwardly though the skin of the subject is performed while retracting the at least one needle along the axis of rotation;
moving the first needle within the access port body from the first needle first use position to a first needle second use position by rotating the needle shift mechanism around the axis of rotation;
penetrating the first needle outwardly through the skin of the subject from within the subject from the first needle second use position of the access port implanted within the subject such that the first needle is exposed outside the subject, wherein penetrating the first needle outwardly through skin of the subject is performed while extending the at least one needle along the axis of rotation;
introducing a second fluid into the subject through the first needle and;
withdrawing the first needle inwardly through the skin of the subject from outside the subject such that the first needle is concealed within the subject and within the access port body,wherein withdrawing the first needle inwardly though the skin of the subject is performed while retracting the at least one needle along the axis of rotation.
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Abstract
A medical device comprising a subcutaneous access port having an access port body and at least one needle having a removable needle tip and a needle shaft defining a needle lumen; the at least one needle housed within the access port body, the at least one needle extendable and retractable relative to the access port body; and a needle shift mechanism operable such that the at least one needle is extendable from and retractable into the access port body at a plurality of positions of the access port body.
153 Citations
24 Claims
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1. A method of treating a subject, comprising:
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penetrating a first needle outwardly through skin of the subject from within the subject from a first needle first use position of an access port implanted within the subject such that the first needle is exposed outside the subject, wherein the access port comprises an access port body containing the first needle and a needle shift mechanism, the needle shift mechanism movable within the access port body to move the at least one needle to a plurality of different use positions of the access port body, wherein the needle shift mechanism is rotatable around an axis of rotation, and the at least one needle is extendable and retractable along the axis of rotation; and wherein penetrating the first needle outwardly through skin of the subject is performed while extending the at least one needle along the axis of rotation; introducing a first fluid into the subject through the first needle; withdrawing the first needle inwardly through the skin of the subject from outside the subject such that the first needle is concealed within the subject and within the access port body, wherein withdrawing the first needle inwardly though the skin of the subject is performed while retracting the at least one needle along the axis of rotation; moving the first needle within the access port body from the first needle first use position to a first needle second use position by rotating the needle shift mechanism around the axis of rotation; penetrating the first needle outwardly through the skin of the subject from within the subject from the first needle second use position of the access port implanted within the subject such that the first needle is exposed outside the subject, wherein penetrating the first needle outwardly through skin of the subject is performed while extending the at least one needle along the axis of rotation; introducing a second fluid into the subject through the first needle and; withdrawing the first needle inwardly through the skin of the subject from outside the subject such that the first needle is concealed within the subject and within the access port body, wherein withdrawing the first needle inwardly though the skin of the subject is performed while retracting the at least one needle along the axis of rotation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of treating a subject, comprising:
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penetrating a first needle outwardly through skin of the subject from within the subject from a first needle first use position of an access port implanted within the subject such that the first needle is exposed outside the subject, wherein the access port comprises an access port body containing the first needle and a needle shift mechanism, the needle shift mechanism movable within the access port body to move the at least one needle to a plurality of different use positions of the access port body, wherein the needle shift mechanism is rotatable around an axis of rotation, and the at least one needle is extendable and retractable along the axis of rotation; and wherein penetrating the first needle outwardly through skin of the subject is performed while extending the at least one needle along the axis of rotation; removing a first fluid from the subject through the first needle; withdrawing the first needle inwardly through the skin of the subject from outside the subject such that the first needle is concealed within the subject and within the access port body, wherein withdrawing the first needle inwardly though the skin of the subject is performed while retracting the at least one needle along the axis of rotation; moving the first needle within the access port body from the first needle first use position to a first needle second use position by rotating the needle shift mechanism around the axis of rotation; penetrating the first needle outwardly through the skin of the subject from within the subject from the first needle second use position of the access port implanted within the subject such that the first needle is exposed outside the subject, wherein penetrating the first needle outwardly through skin of the subject is performed while extending the at least one needle along the axis of rotation; removing a second fluid from the subject through the first needle and; withdrawing the first needle inwardly through the skin of the subject from outside the subject such that the first needle is concealed within the subject and within the access port body, wherein withdrawing the first needle inwardly though the skin of the subject is performed while retracting the at least one needle along the axis of rotation. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification