Patent JPS5327347A successfully refreshed from Google Patents.
US20040181174A2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical device for navigation through anatomy and method of making same
Assignee: Precision Vascular Systems Inc
•
Filing: 2003-07-25
•
Granted: —
•
Expires: 2023-07-25
Abstract
Abstract Abstract of the Disclosure Medical devices for navigation through anatomy, including guidewires, which may have a core wire, a slotted tubular member, or both. Embodiments may have coils, including non-circular cross-section edge-wound marker coils, extended coil tips, and soldered or glued mesial joint coils. Core wires may have a step, ridge, or taper at the joints to the tubular member, and may be flattened at the distal tip. Radiopaque material may be located inside the tubular member, and the distal tip may be heat treated to make it shapeable. Additional tubular members or coils may be used concentrically or in line and may enhance flexibility, provide radiopacity, reduce friction, or reduce material or manufacturing cost. Tubular members may be chamfered or tapered continuously or incrementally. Slots may be arranged in groups, such as groups of three, and may be equal in depth or unequal in depth to provide a steerable or compressible tip.
Inventors
- 👤 Clark Davis
- 👤 Clay Northrop
- 👤 Ted Layman
- 👤 Kevin Olson
- 👤 Edward Snyder
- 👤 D. Backman
- 👤 Todd Turnlund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:36
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/09; A61M25/0009; A61M25/0013; A61M25/09016
Claims Analysis
Total Claims: 81
Claim 1
Independent Claim
67 words
A medical device for navigation through anatomy, the medical device comprising: an elongate body having a proximal end, a distal end, and a longitudinal axis extending at least from the proximal end to the distal end; and a helical first coil formed from wire having a substantially non-circular cross section; and said cross section having a greater dimension in the radial direction than in the axial direction.
Claim 2
Dependent Claim
67 words
A medical device for navigation through anatomy, the medical device comprising: an elongate body having a proximal end, a distal end, and a longitudinal axis extending at least from the proximal end to the distal end; and a helical first coil formed from wire having a substantially non-circular cross section; and said cross section having a greater dimension in the radial direction than in the axial direction.
Claim 3
Dependent Claim
28 words
The medical device of claim 1 , said body comprising a tubular member having a plurality of slots configured to make said tubular member more flexible in bending.
Claim 4
Dependent Claim
27 words
The medical device of claim 1 , said first coil being located at or near said distal end, said first coil substantially comprising a substantially radiopaque material.
Claim 5
Dependent Claim
62 words
The medical device of claim 3 , said body comprising a tubular member having a plurality of slots configured to make said tubular member more flexible in bending, said body further comprising a core wire, at least part of said core wire being located inside said tubular member, at least a portion of said core wire being located inside said first coil.
Claim 6
Dependent Claim
20 words
The medical device of claim 1 further comprising a second coil sharing said longitudinal axis with at least said body.
Claim 7
Dependent Claim
13 words
The medical device of claim 1 , said medical device being a guidewire.
Claim 8
Dependent Claim
88 words
A medical device configured to be guided to a target location in anatomy, the medical device comprising: a first tubular member having a proximal end and a distal end; a core wire extending proximally from said first tubular member, said core wire being attached with a joint to said first tubular member at least at said proximal end, said joint comprising: a first coil circumscribing said core wire, said first coil being at least partially inside said first tubular member, and at least one of solder and adhesive.
Claim 9
Dependent Claim
88 words
A medical device configured to be guided to a target location in anatomy, the medical device comprising: a first tubular member having a proximal end and a distal end; a core wire extending proximally from said first tubular member, said core wire being attached with a joint to said first tubular member at least at said proximal end, said joint comprising: a first coil circumscribing said core wire, said first coil being at least partially inside said first tubular member, and at least one of solder and adhesive.
Claim 10
Dependent Claim
51 words
The medical device of claim 7 , said core wire being metal and said first coil being metal, said joint comprising solder attaching said first coil to said core wire and adhesive attaching at least one of said first coil, said core wire, and said solder, to said first tubular member.
Claim 11
Dependent Claim
34 words
The medical device of claim 7 , said first tubular member having superelastic properties and at least part of said distal end being heat treated to reduce said superelastic properties at said distal end.
Claim 12
Dependent Claim
64 words
The medical device of claim 7 said first tubular member comprising a plurality of slots formed in said first tubular member, at least a plurality of said slots being substantially perpendicular to said axis, said slots being formed in a plurality of groups, and at least a plurality of said groups comprising a plurality of slots at substantially the same location along said axis.
Claim 13
Dependent Claim
29 words
The medical device of claim 10 , wherein in at least some said groups, at least one said slot is substantially deeper than at least one other said slot.
Claim 14
Dependent Claim
21 words
The medical device of claim 7 further comprising a second tubular member circumscribing at least a portion of said core wire.
Claim 15
Dependent Claim
40 words
The medical device of claim 7 , said first coil being formed from wire having a wire diameter, said first coil having at least a portion of its length with a pitch of at least 1.5 times said wire diameter.
Claim 16
Dependent Claim
25 words
The medical device of claim 7 , said core wire having a tapered portion, said joint being located at least partially within said tapered portion.
Claim 17
Dependent Claim
21 words
The medical device of claim 7 further comprising a second coil having a larger outside coil diameter than said first coil.
Claim 18
Dependent Claim
34 words
The medical device of claim 7 , said core wire having a feature configured to facilitate mechanical interlock of said at least one of solder and adhesive, said joint being located at said feature.
Claim 19
Dependent Claim
19 words
The medical device of claim 16 , said feature comprising at least one of a step and a ridge.
Claim 20
Dependent Claim
18 words
The medical device of claim 7 , said first tubular member having a chamfer at said proximal end.
Claim 21
Dependent Claim
27 words
The medical device of claim 7 , said core wire further being attached to said first tubular member at said distal end of said first tubular member.
Claim 22
Dependent Claim
30 words
The medical device of claim 7 , said core wire further being attached to said first tubular member at least one location intermediate said proximal end and said distal end.
Claim 23
Dependent Claim
65 words
The medical device of claim 7 , said core wire having a proximal section proximal to said first tubular member, said proximal section having a first outside diameter along at least a majority of its length, and said first tubular member having a second outside diameter along at least a majority of its length, said first outside diameter being larger than said second outside diameter.
Claim 24
Dependent Claim
108 words
A medical device configured to be guided to a target location in anatomy, the medical device comprising: a tubular member having a proximal end and a distal end and a plurality of slots configured to make said tubular member more flexible in bending; and a core wire having a proximal section extending proximally from said tubular member, and a distal section located inside said tubular member, said core wire being attached to said tubular member at least at said proximal end; and at least part of said proximal section having a substantially round cross section and at least part of said distal section having a flattened cross section.
Claim 25
Dependent Claim
108 words
A medical device configured to be guided to a target location in anatomy, the medical device comprising: a tubular member having a proximal end and a distal end and a plurality of slots configured to make said tubular member more flexible in bending; and a core wire having a proximal section extending proximally from said tubular member, and a distal section located inside said tubular member, said core wire being attached to said tubular member at least at said proximal end; and at least part of said proximal section having a substantially round cross section and at least part of said distal section having a flattened cross section.
Claim 26
Dependent Claim
20 words
The medical device of claim 22 further comprising substantially radiopaque material located inside said tubular member at said distal end.
Claim 27
Dependent Claim
35 words
The medical device of claim 23 said substantially radiopaque material having a substantially semicircular cross section and being located on opposite sides of said flattened cross section of said distal section of said core wire.
Claim 28
Dependent Claim
118 words
A medical device with a stepped core wire configured to be guided to a target location in anatomy, the medical device comprising: a tubular member having a proximal end and a distal end and a plurality of slots configured to make said tubular member more flexible in bending; and a core wire having a proximal section extending proximally from said tubular member, and a distal section located at least partially inside said tubular member, said core wire comprising an abrupt change in cross-sectional dimension between said proximal section and said distal section; and said core wire being attached to said tubular member at least at said proximal end, said proximal end abutting said abrupt change in cross-sectional dimension.
Claim 29
Dependent Claim
118 words
A medical device with a stepped core wire configured to be guided to a target location in anatomy, the medical device comprising: a tubular member having a proximal end and a distal end and a plurality of slots configured to make said tubular member more flexible in bending; and a core wire having a proximal section extending proximally from said tubular member, and a distal section located at least partially inside said tubular member, said core wire comprising an abrupt change in cross-sectional dimension between said proximal section and said distal section; and said core wire being attached to said tubular member at least at said proximal end, said proximal end abutting said abrupt change in cross-sectional dimension.
Claim 30
Dependent Claim
19 words
The medical device of claim 25 further comprising a coil circumscribing at least a portion of said core wire.
Claim 31
Dependent Claim
27 words
The medical device of claim 26 , said coil being soldered to said core wire, said tubular member being attached at least to said coil with adhesive.
Claim 32
Dependent Claim
95 words
A medical device configured to be guided to a target location in anatomy, the medical device comprising: a first tubular member having a proximal end and a distal end, and a longitudinal axis extending at least from the proximal end to the distal end; a plurality of slots formed into said first tubular member and configured to make said first tubular member more flexible in bending; a core wire extending proximally from said proximal end of said first tubular member; and a first coil extending distally from said distal end of said first tubular member.
Claim 33
Dependent Claim
95 words
A medical device configured to be guided to a target location in anatomy, the medical device comprising: a first tubular member having a proximal end and a distal end, and a longitudinal axis extending at least from the proximal end to the distal end; a plurality of slots formed into said first tubular member and configured to make said first tubular member more flexible in bending; a core wire extending proximally from said proximal end of said first tubular member; and a first coil extending distally from said distal end of said first tubular member.
Claim 34
Dependent Claim
16 words
The medical device of claim 28 further comprising a second tubular member sharing said longitudinal axis.
Claim 35
Dependent Claim
35 words
The medical device of claim 29 , said second tubular member extending distally from said distal end of said first tubular member, said second tubular member being at least partially located inside said first coil.
Claim 36
Dependent Claim
27 words
The medical device of claim 29 , said second tubular member comprising a plurality of slots configured to make said second tubular member more flexible in bending.
Claim 37
Dependent Claim
34 words
The medical device of claim 28 , said first tubular member comprising a first portion without said slots and a second portion with said slots, said first portion being proximal to said second portion.
Claim 38
Dependent Claim
86 words
The medical device of claim 28 , said core wire being attached with a joint to said first tubular member at least at said proximal end of said first tubular member, said joint comprising a second coil circumscribing said core wire, and said second coil being at least partially inside said first tubular member; and said joint further comprising at least one of solder and an adhesive attaching said second coil to said core wire and said first tubular member at least to said second coil.
Claim 39
Dependent Claim
20 words
The medical device of claim 33 , said core wire comprising an abrupt change in cross-sectional dimension at said joint.
Claim 40
Dependent Claim
15 words
The medical device of claim 28 , said slots being arranged in groups of three.
Claim 41
Dependent Claim
18 words
The medical device of claim 28 , said first tubular member having a chamfer at said proximal end.
Claim 42
Dependent Claim
22 words
The medical device of claim 28 , said core wire having a distal tip, said distal tip being at least partially flattened.
Claim 43
Dependent Claim
106 words
A slotted medical device configured to navigate through anatomy, the medical device comprising: a first tubular member having a proximal end, a distal end, and a longitudinal axis extending at least from the proximal end to the distal end; a plurality of groups of slots formed into said first tubular member, at least a plurality of said groups comprising a plurality of slots at substantially the same location along said axis; at least a plurality of said longitudinally adjacent said groups being rotated at an angle around said axis from the previous said group; at least a plurality of said groups having at least three slots.
Claim 44
Dependent Claim
106 words
A slotted medical device configured to navigate through anatomy, the medical device comprising: a first tubular member having a proximal end, a distal end, and a longitudinal axis extending at least from the proximal end to the distal end; a plurality of groups of slots formed into said first tubular member, at least a plurality of said groups comprising a plurality of slots at substantially the same location along said axis; at least a plurality of said longitudinally adjacent said groups being rotated at an angle around said axis from the previous said group; at least a plurality of said groups having at least three slots.
Claim 45
Dependent Claim
30 words
The medical device of claim 38 , each said slot in at least a plurality of said groups being of substantially equal size and substantially equally spaced around said axis.
Claim 46
Dependent Claim
55 words
The medical device of claim 38 , the spacing between said groups in the axial direction varying gradually along at least part of said first tubular member providing a varying bending stiffness along at least part of said first tubular member, said groups being more closely spaced in the axial direction at said distal end.
Claim 47
Dependent Claim
52 words
The medical device of claim 38 , at least a plurality of said longitudinally adjacent said groups being rotated at an angle around said axis from the previous said group, said angle being 180 degrees divided by the number of slots in the group, plus or minus no more than 10 degrees.
Claim 48
Dependent Claim
18 words
The medical device of claim 38 , at least a plurality of said groups consisting of three slots.
Claim 49
Dependent Claim
27 words
The medical device of claim 38 further comprising a core wire disposed within said first tubular member and extending proximal therefrom, the medical device being a guidewire.
Claim 50
Dependent Claim
81 words
The medical device of claim 43 , said core wire being attached with a joint to said first tubular member at least at said proximal end of said first tubular member, said joint comprising a metal first coil soldered to said core wire, said first coil circumscribing said core wire, and said first coil being at least partially inside said first tubular member; and said joint further comprising an adhesive attaching at least said first coil to said first tubular member.
Claim 51
Dependent Claim
48 words
The medical device of claim 43 , said first tubular member extending distal to said distal tip of said core wire, said medical device further comprising at least one piece of radiopaque material inside said first tubular member and distal to said distal tip of said core wire.
Claim 52
Dependent Claim
30 words
The medical device of claim 43 further comprising a coil extending distal to said first tubular member, said core wire extending distal to said first tubular member inside said coil.
Claim 53
Dependent Claim
28 words
The medical device of claim 46 , said core wire being axially but not torsionally constrained relative to said coil at said distal tip of said core wire.
Claim 54
Dependent Claim
14 words
The medical device of claim 38 , said first tubular member having superelastic properties.
Claim 55
Dependent Claim
20 words
The medical device of claim 48 , said first tubular member having a tip, said tip having reduced superelastic properties.
Claim 56
Dependent Claim
17 words
The medical device of claim 38 further comprising a second tubular member attached to said medical device.
Claim 57
Dependent Claim
26 words
The medical device of claim 50 said second tubular member comprising a plurality of slots configured to make said second tubular member more flexible in bending.
Claim 58
Dependent Claim
17 words
The medical device of claim 38 , said first tubular member having chamfer at said proximal end.
Claim 59
Dependent Claim
116 words
A medical device configured to navigate through anatomy, the medical device comprising: a tubular member having a proximal end, a distal end, and a longitudinal axis extending at least from the proximal end to the distal end, the tubular member comprising a plurality of slots configured to make it more flexible in bending; a core wire disposed at least partially within said tubular member and extending proximal therefrom, said core wire having a distal tip; a joint attaching said core wire to said tubular member at said proximal end of said tubular member; and at least one piece of radiopaque material inside said tubular member, at or adjacent to said distal end of said tubular member.
Claim 60
Dependent Claim
116 words
A medical device configured to navigate through anatomy, the medical device comprising: a tubular member having a proximal end, a distal end, and a longitudinal axis extending at least from the proximal end to the distal end, the tubular member comprising a plurality of slots configured to make it more flexible in bending; a core wire disposed at least partially within said tubular member and extending proximal therefrom, said core wire having a distal tip; a joint attaching said core wire to said tubular member at said proximal end of said tubular member; and at least one piece of radiopaque material inside said tubular member, at or adjacent to said distal end of said tubular member.
Claim 61
Dependent Claim
72 words
The medical device of claim 53 , at least a plurality of said slots being substantially perpendicular to said axis, said slots being formed in a plurality of groups, at least a plurality of said groups comprising a plurality of slots at substantially the same location along said axis, and wherein in at least some said groups, at least one said slot is substantially deeper than at least one other said slot.
Claim 62
Dependent Claim
45 words
The medical device of claim 53 , said radiopaque material being a helical coil made of wire having a substantially non-circular cross section, said wire having a substantially greater dimension in the radial direction than in the axial direction after being formed into said coil.
Claim 63
Dependent Claim
16 words
The medical device of claim 53 further comprising a mesial coil proximal to said radiopaque material.
Claim 64
Dependent Claim
33 words
The medical device of claim 53 , said tubular member extending distally from said distal tip of said core wire, said radiopaque material being distal to said distal tip of said core wire.
Claim 65
Dependent Claim
25 words
The medical device of claim 53 , said core wire further being attached to said tubular member at said distal tip of said core wire.
Claim 66
Dependent Claim
29 words
The medical device of claim 53 , said core wire having at least one abrupt change in cross-sectional dimension, said abrupt change being at or adjacent to said joint.
Claim 67
Dependent Claim
124 words
A medical device configured to navigate through anatomy, the medical device comprising: a first tubular member having a proximal end, a distal end, and a longitudinal axis extending at least from the proximal end to the distal end, the first tubular member comprising a plurality of slots configured to make it more flexible in bending; a second tubular member sharing said longitudinal axis with said first tubular member; and a core wire sharing said longitudinal axis with said first tubular member and said second tubular member; said first tubular member being attached to at least one of said second tubular member and said core wire; and said second tubular member being attached to at least one of said firsttubular member and said core wire.
Claim 68
Dependent Claim
124 words
A medical device configured to navigate through anatomy, the medical device comprising: a first tubular member having a proximal end, a distal end, and a longitudinal axis extending at least from the proximal end to the distal end, the first tubular member comprising a plurality of slots configured to make it more flexible in bending; a second tubular member sharing said longitudinal axis with said first tubular member; and a core wire sharing said longitudinal axis with said first tubular member and said second tubular member; said first tubular member being attached to at least one of said second tubular member and said core wire; and said second tubular member being attached to at least one of said firsttubular member and said core wire.
Claim 69
Dependent Claim
18 words
The medical device of claim 60 , said second tubular member being concentric with said first tubular member.
Claim 70
Dependent Claim
19 words
The medical device of claim 60 , said second tubular member being in line with said first tubular member.
Claim 71
Dependent Claim
24 words
The medical device of claim 60 , said second tubular member comprising a plurality of slots configured to make it more flexible in bending.
Claim 72
Dependent Claim
29 words
The medical device of claim 60 further comprising a first coil concentric with at least one of said first tubular member, said second tubular member, and said core wire.
Claim 73
Dependent Claim
25 words
The medical device of claim 64 , said first coil being inside at least one of said first tubular member and said second tubular member.
Claim 74
Dependent Claim
17 words
The medical device of claim 64 further comprising a second coil circumscribing at least said core wire.
Claim 75
Dependent Claim
31 words
The medical device of claim 60 , said medical device being configured such that tensioning said core wire causes said distal end of said first tubular member to change in shape.
Claim 76
Dependent Claim
35 words
The medical device of claim 67 , at least some of said slots being deeper on one side of said axis than on the other side of said axis to facilitate said change in shape.
Claim 77
Dependent Claim
136 words
A tapered medical device configured to navigate through anatomy, the medical device comprising: a tubular member having a proximal end, a distal end, and a longitudinal axis extending at least from the proximal end to the distal end, at least a portion of said tubular member comprising a plurality of slots, said slots being configured to make said tubular member more flexible in bending; a core wire disposed within said tubular member and extending proximal therefrom; said core wire being attached to said tubular member at least at said proximal end of said tubular member; said tubular member having a taper at least in its outside diameter over at least a portion of its length, said taper having a decreasing outside diameter in the distal direction, said taper being at least one of continuous and incremental.
Claim 78
Dependent Claim
136 words
A tapered medical device configured to navigate through anatomy, the medical device comprising: a tubular member having a proximal end, a distal end, and a longitudinal axis extending at least from the proximal end to the distal end, at least a portion of said tubular member comprising a plurality of slots, said slots being configured to make said tubular member more flexible in bending; a core wire disposed within said tubular member and extending proximal therefrom; said core wire being attached to said tubular member at least at said proximal end of said tubular member; said tubular member having a taper at least in its outside diameter over at least a portion of its length, said taper having a decreasing outside diameter in the distal direction, said taper being at least one of continuous and incremental.
Claim 79
Dependent Claim
25 words
The medical device of claim 69 , said tubular member having a continuously tapered outside diameter over at least a portion of said tubular member.
Claim 80
Dependent Claim
33 words
The medical device of claim 69 , said tubular member having an outside diameter that changes in at least one step between said proximal end and said distal end of said tubular member.
Claim 81
Dependent Claim
31 words
The medical device of claim 69 , said tubular member comprising a plurality of sections having different outside diameters, the sections being attached to each other to form said tubular member.
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