APPARATUS FOR DELIVERY OF THERAPEUTIC AND/OR DIAGNOSTIC AGENTS
First Claim
1. A delivery system comprising an inserter including a cannula insertion member, a housing assembly having a latch and a housing with a bore, a port driver slidably mounted in the bore and having a seat, one of the housing assembly and the port driver further having a socket for retaining the cannula insertion member, and a spring operatively between the housing and the port driver, the latch being held axially relative to the housing and selectively engageable with the port driver with the spring in a stressed state;
- a port assembly including a base having a mounting side, a port opening away from the mounting side and a cannula extending from the base;
the seat receiving the port assembly, the cannula insertion member positionable at the port with the port assembly in the seat;
an access hub including a connector positionable at the port with the port assembly separated from the seat.
1 Assignment
0 Petitions
Accused Products
Abstract
A system for delivery of therapeutic and/or diagnostic agents into a living body includes a port assembly having a cannula extending from the mounting side, a port opening away from the mounting side and a resilient barrier between the port and the cannula. An access hub includes a connector positionable at the port for opening the resilient barrier. The access hub is movable in the port assembly, is engaged therewith through a resilient ring coupling and forms a seal with the resilient barrier, reducing the amount of volume to be primed. Inserters, both disposable and reusable, include the cannula insertion member as part of the assembly. A spring loaded port driver is operatively mounted within the housing with movement controlled by a latch. The driver includes a seat for receipt of a port assembly. The cannula insertion member is nonremovably fixed in a socket in the port driver in the disposable assembly. In the reusable inserter, the cannula insertion member is slidably mounted within a socket associated with the latch. Slidable movement is limited by locking shoulders. The socket is split and may be splayed to release the cannula insertion member following use.
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Citations
19 Claims
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1. A delivery system comprising
an inserter including a cannula insertion member, a housing assembly having a latch and a housing with a bore, a port driver slidably mounted in the bore and having a seat, one of the housing assembly and the port driver further having a socket for retaining the cannula insertion member, and a spring operatively between the housing and the port driver, the latch being held axially relative to the housing and selectively engageable with the port driver with the spring in a stressed state; -
a port assembly including a base having a mounting side, a port opening away from the mounting side and a cannula extending from the base;
the seat receiving the port assembly, the cannula insertion member positionable at the port with the port assembly in the seat;
an access hub including a connector positionable at the port with the port assembly separated from the seat. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A delivery system comprising
a port assembly; -
an inserter including a housing having a bore therethrough, a latch located in the bore and having a socket with a passageway having an open end and a stop, a port driver slidably mounted in the bore and having a seat, a spring operatively between the housing and the port driver, the latch being held in the housing and extendable to selectively engage the port driver with the spring in a stressed state, the port assembly being positioned in the seat, and a cannula insertion member having a needle extending through the port assembly and a needle hub slidable in the passageway a distance limited by the stop and fixed to the needle through the open end, the seat receiving the port assembly. - View Dependent Claims (15, 16, 17, 18)
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19-21. -21. (canceled)
Specification