Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
143 words
An ureteral catheter stent, which comprises: an elongated relatively flexible hollow tubular member having a plurality of drainage openings extending through a wall thereof and having two end portions, each end portion being in the form of a hook, and at least one hook being separate and attachable to said elongated member and having at least one of a male or female interlock unit at the end of said hook and the other of said male or female interlock unit at the end of said elongated member; and, further, wherein the flexibilty of said tubular member is such that said interlock unit is formed so as to functionally engage in an interlocking fashion with the corresponding male or female interlock unit of a separate hook only when a stiff rod in inserted into said hook and said elongated relatively flexible hollow tubular member.
Claim 2
Dependent Claim
143 words
An ureteral catheter stent, which comprises: an elongated relatively flexible hollow tubular member having a plurality of drainage openings extending through a wall thereof and having two end portions, each end portion being in the form of a hook, and at least one hook being separate and attachable to said elongated member and having at least one of a male or female interlock unit at the end of said hook and the other of said male or female interlock unit at the end of said elongated member; and, further, wherein the flexibilty of said tubular member is such that said interlock unit is formed so as to functionally engage in an interlocking fashion with the corresponding male or female interlock unit of a separate hook only when a stiff rod in inserted into said hook and said elongated relatively flexible hollow tubular member.
Claim 3
Dependent Claim
22 words
The stent of claim 1 wherein two male or female interlock units are located at the end of at least one hook.
Claim 4
Dependent Claim
204 words
An ureteral catheter stent, which comprises: an elongated relatively flexible hollow tubular member having a plurality of drainage openings extending through a wall thereof and having two end portions, each end portion being in the form of a hook, and having at least one segment of wire made in a memory material embedded within the wall of said tubular member for a distance of at least one end portion and at a location which is coincidental with an inside radius of said hook of said end portion and having at least one cut through at least sixty percent (60%) of said tubular member at a location away from said wire; and further includes at least one of a male or female interlocking unit at the end of the hook being cut and the other of a male or female interlocking unit at the end of said elongated member at said cut; and further, wherein the flexibility of said tubular member is such that said interlock unit is formed so as to engage in an interlocking fashion functionally with the corresponding male or female interlock unit of a separate hook only when a stiff rod is inserted into said elongated, relatively flexible hollow tubular member.
Claim 5
Dependent Claim
204 words
An ureteral catheter stent, which comprises: an elongated relatively flexible hollow tubular member having a plurality of drainage openings extending through a wall thereof and having two end portions, each end portion being in the form of a hook, and having at least one segment of wire made in a memory material embedded within the wall of said tubular member for a distance of at least one end portion and at a location which is coincidental with an inside radius of said hook of said end portion and having at least one cut through at least sixty percent (60%) of said tubular member at a location away from said wire; and further includes at least one of a male or female interlocking unit at the end of the hook being cut and the other of a male or female interlocking unit at the end of said elongated member at said cut; and further, wherein the flexibility of said tubular member is such that said interlock unit is formed so as to engage in an interlocking fashion functionally with the corresponding male or female interlock unit of a separate hook only when a stiff rod is inserted into said elongated, relatively flexible hollow tubular member.
Claim 6
Dependent Claim
17 words
The stent of claim 3 wherein said wire made of memory material is a round memory metal.
Claim 7
Dependent Claim
17 words
The stent of claim 3 wherein said wire made of memory material is a flat memory metal.
Claim 8
Dependent Claim
16 words
The stent of claim 3 wherein said wire made of memory material is a synthetic fiber.
Claim 9
Dependent Claim
24 words
The stent of claim 3 wherein two strands of said wire made of memory material are embedded within the wall of said hollow member.
Claim 10
Dependent Claim
29 words
The stent of claim 3 wherein said wire extends within said tubular member a distance of not more than twenty-five percent (25%) of the entire length of said member.