Vascular access kit
AssigneeEmbrace Medical Ltd
InventorMichael Gabriel TAL
Life of this patent
Estimating the term…
Abstract
Vascular access kit comprising a guidewire and a needle. The guidewire includes elastic core member ending with guidewire tip segment. Guidewire tip segment comprising widening, guidewire tip rear portion extending distally to the widening, and guidewire tip front portion extending distally from the widening. The needle comprising a beveled opening greater in length than guidewire tip front portion. Guidewire tip rear portion includes a flexing portion configured for causing localized buckling and/or bending for inclining guidewire tip front portion relative to guidewire tip rear portion, in needle beveled opening, when the core member is axially compressed.
Claims22
A vascular access guidewire, comprising:
- comprising an elastic core member ending with a guidewire tip segment comprising a widening, a guidewire tip rear portion extending distally to the widening, and a guidewire tip front portion thicker than the guidewire tip rear portion extending distally from the widening;
- wherein the guidewire tip rear portion includes a flexing portion configured to cause localized buckling and/or bending for inclining the guidewire tip front portion relative to the guidewire tip rear portion, in the beveled opening, when the core member is axially compressed;
- wherein the flexing portion includes a curved length along which the core member is fixedly deviated laterally relatively to straight aligned portions of the core member proximally and distally adjacent to the curved length.
-13. (canceled)
-20. (canceled)
A device for forming a vascular access in a blood vessel via an access needle, comprising:
- an elastic core member comprising of a guidewire proximal segment extending distally to a first narrowing, a guidewire intermediate segment thinner than the guidewire proximal segment extending distally from the first narrowing to a second narrowing, a guidewire tip rear portion thinner than the guidewire intermediate segment extending distally from the second narrowing to a widening, and a guidewire tip front portion thicker than the guidewire tip rear portion extending distally from the widening;
- and
- a cylindrical coiled member extending between the first narrowing and the widening of the core member;
- wherein the tip rear portion includes a flexing portion configured to affect localized buckling and/or bending for inclining the tip front portion relative to the tip rear portion when the core member is axially compressed;
- wherein the coiled member is configured with a first coil pitch along a chosen length thereof surrounding the flexing portion and a second coil pitch smaller than the first coil pitch along a remainder length of the coiled member.
Dependencies are inferred from the claim text.