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WO1982000592A1 Expired / Lapsed WO ⏱️ 0.0 years remaining

Balloon catheter

Assignee: Uresil Co
•
Filing: 1981-08-11
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Granted: —
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Expires: 2001-08-11
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Abstract

Abstract Translated from English Un catheter a ballon (10) d'introduction dans un passage d'un corps comprend un ressort en spirale allonge (32) qui definit une ouverture. Ce ressort en spirale (32) est recouvert d'un enrobage de silicone qui comprend une gaine extensible (42), un collier d'elimination de contraintes (54) fixe sur la gaine, et une pointe de ballon (50, 52) fixee sur le collier d'elimination de contraintes (54). La gaine extensible (42) et une portion du ressort en spirale allongee (32) forment en combinaison une structure de support (30) qui s'allonge sensiblement lorsqu'une force d'etirement excessive est appliquee sur la structure de support (30) en tirant le ballon (50) au travers d'un passage d'un corps. Au fur et a mesure que cette structure de support s'allonge, le volume de l'orifice du ressort en spirale (32) augmente. De preference, le ballon (50) est en communication fluide avec l'orifice du ressort en spirale (32) de telle sorte que le volume du ballon (50) soit reduit lorsque la structure de support s'allonge. Le collier d'elimination de contraintes (54) est concu pour s'etendre en s'ecartant du ressort (32) pour recevoir du fluide provenant du ballon (50) pour reduire la pression du fluide dans le ballon (50) lorsque cette pression dans le ballon depasse une valeur predeterminee. Un mode prefere de realisation comprend une chambre flexible en forme de disque (24) en communication fluide avec le ballon (50), laquelle chambre est dimensionnee pour s'adapter entre le pouce et le doigt oppose d'un utilisateur. A balloon catheter (10) for introduction into a body passage includes an elongated spiral spring (32) which defines an opening. This spiral spring (32) is covered with a silicone coating which includes an extensible sheath (42), a strain relief collar (54) fixed on the sheath, and a balloon tip (50, 52) fixed on the strain relief collar (54). The expandable sheath (42) and a portion of the elongated spiral spring (32) in combination form a support structure (30) which becomes substantially elongated when excessive stretching force is applied to the support structure (30) by shooting the balloon (50) through a passage of a body. As this support structure lengthens, the volume of the orifice of the spiral spring (32) increases. Preferably, the balloon (50) is in fluid communication with the orifice of the spiral spring (32) so that the volume of the balloon (50) is reduced when the support structure lengthens. The strain relief collar (54) is designed to extend away from the spring (32) to receive fluid from the balloon (50) to reduce the pressure of the fluid in the balloon (50) when this pressure in the ball exceeds a predetermined value. A preferred embodiment includes a flexible disc-shaped chamber (24) in fluid communication with the balloon (50), which chamber is sized to fit between a user's opposite thumb and finger.

Inventors

  • 👤 Co Uresil
  • 👤 E Goldberg
  • 👤 S Bazell

Bibliographic Details

Application Number —
Jurisdiction WO
Data Source google_patents
Last Synchronized 2026-10-22 22:08
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/22; A61B17/22031; A61B17/22032; A61M; A61M25/00; A61M25/0043; A61M25/005; A61M25/10; A61M25/1018; A61M25/10181; A61M25/10183; A61M2025/0098; A61M2025/1043; A61M2025/1075

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2892458A Cited
US3044468A Cited
US3467101A Cited
US3794036A Cited
US3924634A Cited
US4044765A Cited
US4133303A Cited
US4149539A Cited
US4263917A Cited

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