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1. WO1997048330 - GUIDEWIRE HAVING HYDROPHILIC COATING

Publication Number WO/1997/048330
Publication Date 24.12.1997
International Application No. PCT/US1997/010666
International Filing Date 20.06.1997
Chapter 2 Demand Filed 21.01.1998
IPC
A61B 5/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
B05D 1/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
1Processes for applying liquids or other fluent materials
B05D 3/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
3Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
02by baking
CPC
A61M 2025/09091
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
25Catheters; Hollow probes
01Introducing, guiding, advancing, emplacing or holding catheters
09Guide wires
09058Basic structures of guide wires
09083having a coil around a core
09091where a sheath surrounds the coil at the distal part
A61M 2025/09175
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
25Catheters; Hollow probes
01Introducing, guiding, advancing, emplacing or holding catheters
09Guide wires
09175having specific characteristics at the distal tip
A61M 25/09
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
25Catheters; Hollow probes
01Introducing, guiding, advancing, emplacing or holding catheters
09Guide wires
Applicants
  • MEDTRONIC, INC. [US]/[US]
Inventors
  • DEEM, Mark, E.
Agents
  • HESLIN, James, M.
Priority Data
08/665,97321.06.1996US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) GUIDEWIRE HAVING HYDROPHILIC COATING
(FR) FIL-GUIDE A REVETEMENT HYDROPHILE
Abstract
(EN)
A guidewire (10) comprises a core wire (12) having a coil tip at its distal end. The coil tip includes a helically wound filament (28) having adjacent turns spaced apart by a preselected distance. The guidewire (10) is coated with a polymeric material (54), typically a hydrophilic polysaccharide, such as hyaluronic acid or chondroitin sulphate. By properly selecting the spacing between adjacent turns of the coil tip (16), the hydrophilic coating (54) will adhere to the coil tip (16) in a manner which does not penetrate the coil and which does not significantly interfere with flexibility and bend ability of the coil tip.
(FR)
Le fil-guide (10) faisant l'objet de la présente invention comprend un fil central (12) doté, à son extrémité distale, d'un embout enroulé. Ledit embout enroulé comprend un filament à enroulement hélicoïdal (28), la distance entre chaque tour étant sélectionnée à l'avance. Le fil-guide (10) est revêtu d'une matière polymère (54), généralement un polysaccharide hydrophile, telle qu'un acide hyaluronique ou un sulfate de chondroïtine. La sélection appropriée de l'espace à laisser entre chaque tour de l'embout enroulé (16) garantit l'adhésion du revêtement hydrophile (54) sur le dit embout (16), sans pénétration dans l'enroulement et sans altération de la souplesse et de la capacité de courbure de l'embout enroulé.
Also published as
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