INSERTION MECHANISM FOR A DRUG DELIVERY PUMP
First Claim
1. An insertion mechanism for a drug pump, said insertion mechanism comprising:
- an insertion mechanism housing having an internal chamber;
a manifold guide having an upper chamber and a lower chamber separated by a manifold guide ring;
one or more insertion biasing members initially held in an energized state within the internal chamber of insertion mechanism housing between the housing and the manifold guide ring;
a clip flexibly engaged with the upper chamber of the manifold guide;
a retraction biasing member and a hub connected to a proximal end of a needle, wherein the retraction biasing member is held initially in an energized state between the hub and the manifold guide; and
a manifold having a septum and a cannula, wherein the annular space between the septum and the cannula defines a manifold header.
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Accused Products
Abstract
An insertion mechanism for a drug pump includes an insertion mechanism housing; a manifold guide; an insertion biasing members initially held in an energized state; a retraction biasing member and a hub connected to a proximal end of a needle, wherein the retraction biasing member is held initially in an energized state between the hub and the manifold guide; and a manifold having a septum and a cannula, wherein the annular space between the septum and the cannula defines a manifold header. The needle and cannula are inserted into the body of a user by the insertion biasing member(s), after which only the needle is retracted. Retraction of the needle may open a fluid pathway from the manifold header to the body through the cannula. A drug delivery pump includes an activation mechanism, a drive mechanism, a fluid pathway connection, and the insertion mechanism. Assembly and operation methods are provided.
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Citations
26 Claims
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1. An insertion mechanism for a drug pump, said insertion mechanism comprising:
- an insertion mechanism housing having an internal chamber;
a manifold guide having an upper chamber and a lower chamber separated by a manifold guide ring;
one or more insertion biasing members initially held in an energized state within the internal chamber of insertion mechanism housing between the housing and the manifold guide ring;
a clip flexibly engaged with the upper chamber of the manifold guide;
a retraction biasing member and a hub connected to a proximal end of a needle, wherein the retraction biasing member is held initially in an energized state between the hub and the manifold guide; and
a manifold having a septum and a cannula, wherein the annular space between the septum and the cannula defines a manifold header. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 21, 22, 23)
- an insertion mechanism housing having an internal chamber;
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12. A drug delivery pump with integrated safety features comprises a housing and an assembly platform, upon which an activation mechanism, a drive mechanism, a fluid pathway connection, a power control system, and an insertion mechanism for a drug pump may be mounted, said insertion mechanism comprising:
- an insertion mechanism housing having an internal chamber;
a manifold guide having an upper chamber and a lower chamber separated by a manifold guide ring;
one or more insertion biasing members initially held in an energized state within the internal chamber of insertion mechanism housing between the housing and the manifold guide ring;
a clip flexibly engaged with the upper chamber of the manifold guide;
a retraction biasing member and a hub connected to a proximal end of a needle, wherein the retraction biasing member is held initially in an energized state between the hub and the manifold guide;
a manifold having a septum and a cannula, wherein the annular space between the septum and the cannula defines a manifold header; and
a base for connection of the insertion mechanism to the assembly platform. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 24, 25, 26)
- an insertion mechanism housing having an internal chamber;
Specification