Endovascular medical device with plurality of wires
0 Assignments
0 Petitions
Accused Products
Abstract
An endovascular device (1, 100, 200, 300) having a distal end (2), a proximal end (4) and a body portion (3) therebetween. The body portion is made of a multiple filament helically wound row (A) of wires (5), provided with a sealing coating (14) on the inside surface or the outside surface or both. The device may be a catheter (1), a sheath, an introducer, a delivery device, a pusher (100), an embolization coil delivery device (300), or a receptacle (208) for an expandable prosthesis (220) used with a delivery device (200). From 2 to 12, and preferably from 4 to 8, wires (5) are used in the row, and fewer wires may be used proceeding toward the distal end (2) for greater flexibility. The helically wound row of wires transmits torque and provides pushability to the device while resisting kinking, and enables a small outside diameter for reaching very small vessels and extending through very tortuous vessels.
133 Citations
51 Claims
-
1-35. -35. (canceled)
-
36. A delivery system comprising:
-
a delivery device with a distal end and a shaft portion with a lumen extending in a longitudinal direction from a proximal end and toward the distal end, a self-expandable prosthesis arranged in a receptacle at the distal end of the delivery device, and a pusher member arranged in the lumen of said delivery device to cause relative axial movement of the self-expandable prosthesis with respect to the delivery device, said shaft portion of said delivery device comprising a first helically wound multiple filament row of from four to eight wires of circular cross-section closely adjacent to each other, wherein said row of wires has a pitch angle in the range of 40°
to 65°
, the wires being provided with a low-friction sealing coating of elastic material on at least a radially outwardly facing surface, the sealing coating having a thickness at the middle of each of the wires of less than 0.1 mm,said receptacle comprising a second helically wound multiple filament row of from two to twelve wires of circular cross-section closely adjacent to each other, wherein said row of wires has a pitch angle in the range of 26°
to 76°
,said pusher member comprising a third helically wound multiple filament row of from two to twelve wires of circular cross-section closely adjacent to each other, wherein said row of wires has a pitch angle in the range of 26°
to 76°
, andone of a radially inwardly facing surface of said delivery device and a radially outwardly facing surface of said pusher member being provided with a low-friction sealing coating of elastic material.
-
-
37. (canceled)
-
38. An embolization device introducer comprising:
a delivery member having a proximal section, and a distal section with a connection means for detachably mounting of an embolization device, wherein the delivery member comprises a multiple filament helically wound row of four to eight closely adjacent wires extending from said distal section toward the proximal section of the delivery member, wherein said row of wires has a pitch angle in the range of 40°
to 65°
, the wires being provided with a low-friction sealing coating of elastic material on at least a radially outwardly facing surface, the sealing coating having a thickness at the middle of each of the wires of less than 0.1 mm.- View Dependent Claims (40, 41, 42, 43, 44, 45)
-
39. An embolization device introducer comprising:
a delivery member having a proximal section, and a distal section with a connection means for detachably mounting of an embolization device, wherein the delivery member comprises a multiple filament helically wound row of wires extending from said distal section toward the proximal section of the delivery member. - View Dependent Claims (46, 47, 48, 49, 50, 51)
Specification