Title:
体内挿入可能かつ膨張可能な処理デバイスを作製するための方法
Document Type and Number:
Japanese Patent JP4795976
Kind Code:
B2
Abstract:
A dilatation balloon (20,98) is fabricated according to a process that yields high hoop strength and uniformity in balloon wall thickness. A length of tubing (34) is axially elongated and radially expanded in a form (36) to provide the requisite biaxial orientation and strength. Then, an excimer laser (46,66,84) is used to remove the polymeric material by photo-chemical ablation, virtually without thermal effects. Dilatation balloon walls are thinned primarily along tapered sections (26,28) between proximal and distal balloon stems (30,32) and a medial working section (24) of the balloon. Material removal, particularly near the balloon stems, enables tighter wrapping of the balloon for a reduced delivery profile, and reduces rigidity near the stems for better maneuverability of the catheter in tortuous passageways. The balloon tapered sections are reduced to a wall thickness substantially equal to that of the medial section. Alternatively, an array of grooves (96) is formed in each tapered section.
Inventors:
Michael Earl Forman
Application Number:
JP2007000214A
Publication Date:
October 19, 2011
Filing Date:
January 04, 2007
Export Citation:
Assignee:
BOSTON SCIENTIFIC SCIMED,INC.
International Classes:
A61M25/00; A61M29/02
Domestic Patent References:
| JP4176473A | ||||
| JP5245206A | ||||
| JP7265437A | ||||
| JP7156569A | ||||
| JP4298978A | ||||
| JP5326965A |
Attorney, Agent or Firm:
Hironobu Onda
Makoto Onda
Atsushi Honda
Makoto Onda
Atsushi Honda