Femoral removal vena cava filter
First Claim
Patent Images
1. An intravascular filter having an expanded state for capturing thrombi in a patient'"'"'s blood vessel and a collapsed state for removal from the patient'"'"'s vasculature, the filter comprising:
- a plurality of struts, each strut having a connected end, a free end, and a filtering portion disposed between the connected end and the free end, the connected ends of the struts being attached together along a longitudinal axis, the struts generally extending in a second direction from the connected ends to the free ends;
a shaft disposed along the longitudinal axis, the shaft having a first end disposed with the connected ends of the struts and a second end, the shaft extending in the second direction from the first end to the second end;
a first cuff slidably disposed on the shaft, the first cuff having a first position and a second position along the shaft, the second position being disposed in the second direction from the first position; and
a second cuff disposed over the struts and connected to the first cuff, the second cuff having a third position and a fourth position over the struts, the second cuff being disposed in the third position when the first cuff is in the first position and in the fourth position when the first cuff is in the second position, the second cuff being disposed in a first direction relative to the filtering portions of the struts when the second cuff is in the third position, the second cuff being disposed over the filtering portions of the struts when the second cuff is in the fourth position, such that the filter may be in the expanded state when the first cuff is in the first position and is in the collapsed state when the first cuff is in the second position.
3 Assignments
0 Petitions
Accused Products
Abstract
An intravascular filter configured for retrieval through a patient'"'"'s femoral vein and a method for retrieving the filter through the patient'"'"'s femoral vein. The filter includes a plurality of struts having connected ends attached together along a longitudinal axis, a shaft disposed along the longitudinal axis and having a first end disposed with the connected ends of the struts, a first cuff slidably disposed on the shaft, and a second cuff disposed over the struts and connected to the first cuff.
61 Citations
15 Claims
-
1. An intravascular filter having an expanded state for capturing thrombi in a patient'"'"'s blood vessel and a collapsed state for removal from the patient'"'"'s vasculature, the filter comprising:
-
a plurality of struts, each strut having a connected end, a free end, and a filtering portion disposed between the connected end and the free end, the connected ends of the struts being attached together along a longitudinal axis, the struts generally extending in a second direction from the connected ends to the free ends; a shaft disposed along the longitudinal axis, the shaft having a first end disposed with the connected ends of the struts and a second end, the shaft extending in the second direction from the first end to the second end; a first cuff slidably disposed on the shaft, the first cuff having a first position and a second position along the shaft, the second position being disposed in the second direction from the first position; and a second cuff disposed over the struts and connected to the first cuff, the second cuff having a third position and a fourth position over the struts, the second cuff being disposed in the third position when the first cuff is in the first position and in the fourth position when the first cuff is in the second position, the second cuff being disposed in a first direction relative to the filtering portions of the struts when the second cuff is in the third position, the second cuff being disposed over the filtering portions of the struts when the second cuff is in the fourth position, such that the filter may be in the expanded state when the first cuff is in the first position and is in the collapsed state when the first cuff is in the second position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method for retrieving an intravascular filter from a patient'"'"'s vena cava through the patient'"'"'s femoral vein, the method comprising:
-
percutaneously inserting a retrieval assembly into the patient'"'"'s vasculature through the patient'"'"'s femoral vein, the retrieval assembly comprising a retrieval sheath, a first control member, and a second control member; advancing the retrieval assembly through the patient'"'"'s vasculature to a retrieval position proximal to the intravascular filter in the patient'"'"'s vena cava, the intravascular filter comprising; a plurality of struts, each strut having a connected end, a free end, and a filtering portion disposed between the connected end and the free end, the connected ends of the struts being attached together along a longitudinal axis, the struts generally extending in a second direction from the connected ends to the free ends; a shaft disposed along the longitudinal axis, the shaft having a first end disposed with the connected ends of the struts and a second end, the shaft extending in a second direction from the first end to the second end; a first cuff slidably disposed on the shaft; and a second cuff disposed over the struts and connected to the first cuff; contacting the shaft with the first control member to stabilize the intravascular filter; attaching the second control member to the first cuff; retracting the second control member proximally to move the first cuff in the second direction along the shaft such that the second cuff slides over the filtering portions of the struts to collapse the intravascular filter; advancing the retrieval sheath distally over the intravascular filter; and removing the retrieval assembly and the intravascular filter from the patient'"'"'s vasculature. - View Dependent Claims (12, 13, 14, 15)
-
Specification