EP0497495A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
A minimally invasive medical device
Assignee: Cook Research Inc
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Filing: 1992-01-22
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Granted: —
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Expires: 2012-01-22
Abstract
Abstract A minimally invasive intravascular medical device for providing a radiation treatment in a body passageway such as a coronary vessel of the vascular system. The device includes a flexible elongated member having distal and proximal portions. The distal portion is percutaneously insertable into a vessel and includes a distal end that is directable through the vessel to the treatment site. A radiation source is attached about the distal portion for delivering a radiation treatment to the walls a vessel having a stent positioned thereagainst. The distal portion of the elongated member includes a wire coil positioned about the tapered distal end of a mandril wire. The combination of the wire coil and the tapered distal end of the mandril wire provides variable flexibility to the distal portion of the device. The distal portion also has a predetermined curvature for directing the distal end of the device through the vessel. A safety wire is also extendable through the passageway of the wire coil to provide further flexibility to the distal portion. The radiation source is fixedly positioned about either the tapered distal end of the mandril wire or the safety wire in the passageway of the wire coil. An annular recess is included about the tapered distal end of the mandril wire to fixedly position a source of radioactive material therein.
Inventors
- 👤 Gareth Sidney Samuel Roubin
- 👤 Neal Edward Fearnot
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 05:55
CPC Classifications
A; A61; A61N; A61N5/00; A61N5/10; A61N5/1001; A61N5/1002; A61B; A61B17/00; A61B17/22; A61B2017/22051; A61B2017/22065; A61B2017/22068; A61M; A61M25/00; A61M25/10; A61M2025/1043; A61M2025/1047; A61N2005/1003; A61N2005/1004; A61N2005/1019; A61N2005/1021; A61N2005/1025
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
73 words
A medical device for insertion in a minimally invasive manner into a patient's body, said device comprising a flexible elongated arrangement having a proximal portion and a distal portion, said distal portion being insertable into said body and directable to a particular part thereof, characterised in that the distal portion is arranged to support a radiation source thereon or therein, in order to provide localized radiation in the region of said particular part.
Claim 2
Dependent Claim
73 words
A medical device for insertion in a minimally invasive manner into a patient's body, said device comprising a flexible elongated arrangement having a proximal portion and a distal portion, said distal portion being insertable into said body and directable to a particular part thereof, characterised in that the distal portion is arranged to support a radiation source thereon or therein, in order to provide localized radiation in the region of said particular part.
Claim 3
Independent Claim
65 words
A method of making a medical device, comprising the step of providing a flexible elongated arrangement with a distal portion and a proximal portion with the distal portion being insertable into a particular part of the body of a patient, characterised in that a radiation source is provided on or within the boundary of said distal portion in order to irradiate the said particular part.
Claim 4
Independent Claim
65 words
A method of making a medical device, comprising the step of providing a flexible elongated arrangement with a distal portion and a proximal portion with the distal portion being insertable into a particular part of the body of a patient, characterised in that a radiation source is provided on or within the boundary of said distal portion in order to irradiate the said particular part.
Claim 5
Dependent Claim
22 words
The device of claim 1 or the method of claim 2, characterised in that said distal portion has a predetermined longitudinal curvature.
Claim 6
Dependent Claim
72 words
The device or method of claim 1,2 or 3, characterised in that said distal portion (14) includes a wire coil (16) having a distal end (18), a proximal end (19), and a passageway (20) extending longitudinally therebetween, said elongated member optionally including a first wire (21) having a tapered distal end (22), said distal portion including said tapered distal end extending longitudinally in said passageway of and attached to said wire coil.
Claim 7
Dependent Claim
49 words
The device or method of claim 4, characterised in that said radiation source (12) includes radioactive material fixedly positioned about said tapered distal end of said first wire, and in that the wire optionally includes an annular recess with said radiation source being fixedly positioned in said annular recess.
Claim 8
Dependent Claim
83 words
The device or method of claim 4, characterised in that said distal portion includes a second wire (35) having a proximal end (36) attached to said wire coil and about said tapered distal end of said first wire and a distal end (37) attached about said distal end of said wire coil and extending longitudinally in said passageway of said wire coil, said proximal end of said second wire optionally extending to and being attached about said proximal end of said wire coil.
Claim 9
Dependent Claim
43 words
The device or method of claim 6, characterised in that said wire coil has a first predetermined outer diameter and wherein said proximal portion of said first wire has a second predetermined outer diameter within a predetermined tolerance of said first outer diameter.
Claim 10
Dependent Claim
54 words
The device or method of claim 1, characterised in that said elongated member comprises a tube having a passageway extending longitudinally between said distal and proximal portions, and in that said radiation source optionally includes radioactive material fixedly positioned about said passageway or about the second wire a predetermined distance from said distal end.
Claim 11
Dependent Claim
19 words
The device or method of claim 8, further comprising a wire guide insertable in said passageway of said tube.
Claim 12
Dependent Claim
192 words
A minimally invasive intravascular medical device for providing a radiation treatment, comprising: a cylindrical first wire having a first uniform outer diameter and a longitudinally tapered distal end; a wire coil including a distal end, a proximal end, and a passageway extending longitudinally therebetween, said tapered distal end of said first wire extending longitudinally in said passageway of said wire coil, said proximal end of said wire coil being attached about said tapered distal end of said first wire, said coil having a second outer diameter within a predetermined tolerance of said first uniform outer diameter, said wire coil having a predetermined longitudinal curvature; a second wire having a distal end attached about said distal end of said wire coil and a proximal end and extending longitudinally in said passageway to said tapered distal end of said first wire, said proximal end of said second wire being attached to said wire coil and about said tapered distal end of said first wire in said longitudinal passageway; and a sleeve of radioactive material fixedly positioned about said second wire in said passageway a predetermined distance from said distal end of said wire coil.
Claim 13
Dependent Claim
192 words
A minimally invasive intravascular medical device for providing a radiation treatment, comprising: a cylindrical first wire having a first uniform outer diameter and a longitudinally tapered distal end; a wire coil including a distal end, a proximal end, and a passageway extending longitudinally therebetween, said tapered distal end of said first wire extending longitudinally in said passageway of said wire coil, said proximal end of said wire coil being attached about said tapered distal end of said first wire, said coil having a second outer diameter within a predetermined tolerance of said first uniform outer diameter, said wire coil having a predetermined longitudinal curvature; a second wire having a distal end attached about said distal end of said wire coil and a proximal end and extending longitudinally in said passageway to said tapered distal end of said first wire, said proximal end of said second wire being attached to said wire coil and about said tapered distal end of said first wire in said longitudinal passageway; and a sleeve of radioactive material fixedly positioned about said second wire in said passageway a predetermined distance from said distal end of said wire coil.
References Cited (Backward Citations)
No citation records indexed.
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