Needle insertion systems and methods
First Claim
1. A connecting structure for connecting a first member in fluid flow connection with a second member, the connecting structure comprising:
- a receptacle structure provided on the first member and having an interior chamber and an opening into the interior chamber;
a first septum provided within the interior chamber, adjacent the opening of the receptacle structure;
a hollow needle supported within the interior chamber of the receptacle structure, the hollow needle having a sharp end with a first opening into which fluid may flow, the sharp end facing the first septum, the hollow needle having a second opening out of which fluid may flow;
a connection portion provided on the second member, the connection portion having a hollow interior chamber and an opening that opens to the hollow interior chamber, the connection portion having a size and shape suitable to be inserted at least partially into the opening of the receptacle structure;
a second septum supported by the connection portion of the second member in a position to cover the opening in the connection portion; and
a needle injection site structure provided on the first member, the needle injection site structure having a needle injection site channel in which an injection needle or cannula from a needle inserting device is moveable from a retracted position to an extended position, and a manifold arranged in fluid flow communication with the injection needle or cannula when the injection needle or cannula is in the extended position and out of fluid flow communication with the injection needle or cannula when the injection needle or cannula is in the retracted position;
the first septum having an end portion configured to be pierced by the hollow needle and a skirt structure extending from the end portion of the first septum, the skirt structure providing a bias force on the end portion of the first septum, the bias force being directed toward the opening of the receptacle structure;
wherein upon receiving the connection portion within the opening of the receptacle structure, the connection portion pushes the first septum toward the sharp end of the hollow needle against the bias force of the skirt structure, and the sharp end of the hollow needle is caused to pierce the first septum and the second septum to come into fluid flow communication with the hollow interior chamber of the connection portion; and
wherein the second opening of the hollow needle is provided in fluid flow communication with the manifold of the needle injection site structure.
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Accused Products
Abstract
A housing may have a needle, plunger, and bias mechanism supported within the housing by a tab configured to retain the plunger in position and to allow the plunger to move under bias force imparted by the bias mechanism to move the needle to an insert position when the tab is removed. A base and a structure may be configured for relative movement there between and may be adapted to be secured to a user with a cannula extending through a body of the structure into the user during use of a medical device. A housing may be adapted to be secured to a user to support a medical device operable with an insertion needle, the housing having a magnifying material for increasing visibility of an injection site.
77 Citations
27 Claims
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1. A connecting structure for connecting a first member in fluid flow connection with a second member, the connecting structure comprising:
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a receptacle structure provided on the first member and having an interior chamber and an opening into the interior chamber; a first septum provided within the interior chamber, adjacent the opening of the receptacle structure; a hollow needle supported within the interior chamber of the receptacle structure, the hollow needle having a sharp end with a first opening into which fluid may flow, the sharp end facing the first septum, the hollow needle having a second opening out of which fluid may flow; a connection portion provided on the second member, the connection portion having a hollow interior chamber and an opening that opens to the hollow interior chamber, the connection portion having a size and shape suitable to be inserted at least partially into the opening of the receptacle structure; a second septum supported by the connection portion of the second member in a position to cover the opening in the connection portion; and a needle injection site structure provided on the first member, the needle injection site structure having a needle injection site channel in which an injection needle or cannula from a needle inserting device is moveable from a retracted position to an extended position, and a manifold arranged in fluid flow communication with the injection needle or cannula when the injection needle or cannula is in the extended position and out of fluid flow communication with the injection needle or cannula when the injection needle or cannula is in the retracted position; the first septum having an end portion configured to be pierced by the hollow needle and a skirt structure extending from the end portion of the first septum, the skirt structure providing a bias force on the end portion of the first septum, the bias force being directed toward the opening of the receptacle structure; wherein upon receiving the connection portion within the opening of the receptacle structure, the connection portion pushes the first septum toward the sharp end of the hollow needle against the bias force of the skirt structure, and the sharp end of the hollow needle is caused to pierce the first septum and the second septum to come into fluid flow communication with the hollow interior chamber of the connection portion; and wherein the second opening of the hollow needle is provided in fluid flow communication with the manifold of the needle injection site structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of connecting a first member in fluid flow connection with a second member, the method comprising:
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providing a receptacle structure on the first member, the receptacle structure having an interior chamber and an opening into the interior chamber; providing a first septum within the interior chamber, adjacent the opening of the receptacle structure, the first septum having an end portion configured to be pierced by the hollow needle and a skirt structure extending from the end portion of the first septum, the skirt structure providing a bias force on the end portion of the first septum, the bias force being directed toward the opening of the receptacle structure; supporting a hollow needle within the interior chamber of the receptacle structure, the hollow needle having a sharp end with a first opening into which fluid may flow, the sharp end facing the first septum, the hollow needle having a second opening out of which fluid may flow; providing a needle injection site structure on the first member, the needle injection site structure having a needle injection site channel in which an injection needle or cannula from a needle inserting device is moveable from a retracted position to an extended position, and a manifold arranged in fluid flow communication with the injection needle or cannula when the injection needle or cannula is in the extended position and out of fluid flow communication with the injection needle or cannula when the injection needle or cannula is in the retracted position; arranging the second opening of the hollow needle in fluid flow communication with the manifold of the needle injection site structure; providing a connection portion on the second member, the connection portion having a hollow interior chamber and an opening that opens to the hollow interior chamber, the connection portion having a size and shape suitable to be inserted at least partially into the opening of the receptacle structure; supporting a second septum by the connection portion of the second member in a position to cover the opening in the connection portion; and inserting the connection portion within the opening of the receptacle structure, to cause the connection portion to push the first septum toward the sharp end of the hollow needle against the bias force of the skirt structure, to cause the sharp end of the hollow needle to pierce the first septum and the second septum and come into fluid flow communication with the hollow interior chamber of the connection portion. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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Specification