Vein filter cartridge
A cartridge for holding a vessel filter and connectable to a component of a delivery system comprising a housing having a first end and a second end, and an engagement member movable to a first engageable position to engage the component of a delivery system to connect the cartridge to the component in a first orientation. A control member is preferably operatively associated with the engagement member to move the engagement member to the first engageable position.
1. A cartridge for holding a vessel filter and connectable to a component of a delivery system, the delivery system delivering the vessel filter to a patient, the cartridge comprising a housing having a first end and a second end, a vessel filter having a plurality of filter legs positioned in the housing, and a first engagement member positioned within the housing and slidable with respect to the housing between a first non-engageable position and a second engageable position for attachment to the delivery system in a first orientation such that the vessel filter can be delivered from the cartridge to the delivery system as it is movable through a first opening in the first engagement member, and a slidable control member including a control knob positioned intermediate the first and second ends and extending transversely through the housing and operatively associated with the first engagement members the control knob movable from a position between the first and second ends toward the first end to slide the first engagement member from within the housing between the first non-engageable position and the second engageable position, and a second engagement member positioned within the housing and movable from a third non-engageable position to a fourth engageable position to engage the component of the delivery system to connect the cartridge to the component in a second orientation such that the vessel filter can be delivered from the cartridge to the delivery system as it is movable through a second opening in the second engagement member.
2. The cartridge of claim 1 , wherein the control member is movable from between the first and second ends toward the first end in a first direction to move the first engagement member to the first engageable position to connect the cartridge in the first orientation and movable from between the first and second ends toward the second end in a second different direction to move the second engagement member to the second engageable position to connect the cartridge in the second orientation.
3. The cartridge of claim 1 , wherein the control member comprises a post movable within an opening in the housing.
4. The cartridge of claim 3 , wherein the opening in the housing includes retention structure to retain the post in a neutral position corresponding to a first non-engageable position of the first engagement member.
5. The cartridge of claim 3 , wherein the opening has an axial component and a radial component, the post positioned in the radial component to retain the engagement member in the first engageable position.
6. The cartridge of claim 1 , wherein the first engagement member includes a snap fit feature exposed in the first engageable position to snap fit with the component of the delivery system.
7. The cartridge of claim 1 , wherein the first and second engagement members are on opposing end portions of a sliding member positioned within the housing.
8. A vessel filter delivery system comprising:
a) a cartridge having
a housing having a first end corresponding to a jugular delivery orientation and a second end corresponding to a femoral delivery orientation, the housing dimensioned for retaining a vessel filter the housing having a first diameter;
a first engagement member having a first opening for the vessel filter and slidable with respect to the housing to a first engageable position for connection of the cartridge for jugular delivery orientation, the first engagement member having a diameter less than the diameter of the housing;
a second engagement member having a second opening for the vessel filter and slidable with respect to the housing to a second engageable position for connection of the cartridge for femoral delivery orientation, the second engagement having a diameter less than the diameter of the housing;
a slidable control member positioned intermediate the first and second ends and extending transversely into the housing for sliding the respective engagement member to the engageable position, the control member movable from between the first and second ends toward the first end to slide the first engagement member to the first engageable position and movable from between the first and second ends toward the second end to slide the second engagement member to the second engageable position:
b) a vessel filter positioned within the cartridge;
c) a delivery tube: and
d) a pusher for advancing the vessel filter from the cartridge and through the respective opening of the engagement member and through the delivery tube.
9. The delivery system of claim 8 , further comprising indicia on the housing to indicate the femoral and jugular delivery orientations.
10. The delivery system of claim 8 , further comprising a wire extending from the pusher, the wire separating retention hooks of the filter during delivery.
11. The cartridge of claim 8 , wherein each engagement member has a snap fit feature for connection of the cartridge in the engageable position.
12. The cartridge of claim 8 , wherein the slidable control member has a post movable within an opening formed in the housing.
13. The cartridge of claim 12 , further comprising retention structure to retain the post in at least one of the positions of the engagement member.