Fitting for use in performing a vascular puncture

Claim 2

A fitting for use in forming a vascular puncture comprising an elongate hub having a longitudinal axis, a blood vessel-entering element extending axially from one end of said hub, tubing attachment means at the other end of said hub and means for stabilizing the fitting on a patient's skin upon insertion of said blood vessel-entering element into a blood vessel, said stabilizing means including first and second substantially laminar wings extending laterally from said hub on opposite sides of said axis respectively, a third substantially laminar wing extending laterally from said hub under one of said first and second wings, each of said first, second and third wings being capable of independent flexing movements about said hub and said third wing having an undersurface with contact adhesive means covering a portion of said surface, wherein said undersurface of said third wing comprises a hub-covering portion, an outer gripping portion and a central portion between said hub-covering portion and said gripping portion and wherein said contact adhesive is provided on said central portion.

Claim 3

A fitting for use in performing a vascular puncture comprising an elongate hub having a longitudinal axis, a blood vessel-entering element extending axially from one end of said hub, and tubing attachment means at the other end of said hub, said fitting further comprising: preliminary stabilizing means for providing positional stability of said fitting on a patient's skin immediately after insertion of said blood vessel-entering element into that patient's blood vessel, said preliminary stabilizing means comprising a first substantially laminar wing-like member having top and bottom surfaces and extending laterally from said hub, said first wing-like member being capable of flexure about said longitudinal axis and having a coating of adhesive material on at least a portion of its bottom side; and further means for gripping said fitting during vascular insertion of said element and stabilizing the element on the patient's skin subsequent to stabilization by said preliminary stabilizing means, said further means comprising second and third substantially laminar wing-like members having top and bottom sides and normally extending laterally from said hub on opposite sides, respectively, of said axis, said second wing-like member normally extending over said first wing-like member, said second and third wing-like members being flexible to permit their independent flexure about said hub such that said second and third wing-like members can be flexed to bring their top sides toward one another to permit said first and second wing-like members to serve as a handle during vascular insertion of said element.

Claim 4

A fitting for use in performing a vascular puncture comprising an elongate hub having a longitudinal axis, a blood vessel-entering element extending axially from one end of said hub, and tubing attachment means at the other end of said hub, said fitting further comprising: preliminary stabilizing means for providing positional stability of said fitting on a patient's skin immediately after insertion of said blood vessel-entering element into that patient's blood vessel, said preliminary stabilizing means comprising a first substantially laminar wing-like member having top and bottom surfaces and extending laterally from said hub, said first wing-like member being capable of flexure about said longitudinal axis and having a coating of adhesive material on at least a portion of its bottom side; and further means for gripping said fitting during vascular insertion of said element and stabilizing the element on the patient's skin subsequent to stabilization by said preliminary stabilizing means, said further means comprising second and third substantially laminar wing-like members having top and bottom sides and normally extending laterally from said hub on opposite sides, respectively, of said axis, said second wing-like member normally extending over said first wing-like member, said second and third wing-like members being flexible to permit their independent flexure about said hub such that said second and third wing-like members can be flexed to bring their top sides toward one another to permit said first and second wing-like members to serve as a handle during vascular insertion of said element.

Claim 5

The fitting according to claim 2, wherein said preliminary stabilizing means further comprises a fourth substantially laminar wing-like member having top and bottom sides and extending laterally from said hub beneath said third wing-like member, said fourth wing-like member being capable of flexure about said hub independently of said first, second and third wing-like members and having a coating of adhesive material on at least a portion of its bottom side.

Claim 6

The fitting as defined in claim 3, wherein said first and fourth wing-like members are substantially thinner than said second and third wing-like members.

Claim 7

The fitting according to claim 2, wherein the bottom surface of said first wing-like member comprises a hub-covering portion, an outer gripping portion and a central portion between said hub-covering portion and said gripping portion, and wherein said adhesive material is provided on said central portion.

Claim 8

The fitting as defined in claim 2, wherein said first wing-like member has a smaller area than said second wing-like member and is positioned relative to the hub so as to fit within the perimeter of said second wing-like member when viewed in plan.

Claim 9

The fitting as defined in claim 2, further comprising means a defining a hinge line between each of said second and third wing-like members and said hub.

Claim 10

The fitting as defined in claim 2, wherein said hub and said second and third wing-like members comprise an integral molding in plastics material.

Claim 11

The fitting as defined in claim 8, further comprising means fusing said first wing-like member to said integral molding.

Claim 12

The fitting according to claim 9, wherein said first wing-like member is plastic web having a thickness in the range of 5 to 8 mils.

Claim 13

The fitting according to claim 8, wherein said second and third wing-like members each have a thickness in the range of 10 to 100 mils.