Embolic coil hydraulic deployment system
First Claim
Patent Images
1. A vasoocclusive coil deployment system for use in placing a coil at a preselected site within a vessel comprising:
- an elongated flexible catheter having a lumen extending therethrough and having a proximal section and a distal section, said distal section of the catheter being formed of a material having a durometer which exhibits the characteristic that when a fluid pressure is applied to the interior of the catheter the walls of the distal section of the catheter expand outwardly;
an embolic coil being disposed in fluid-tight engagement within the lumen of the distal section of the catheter; and
,a syringe coupled to the proximal section of the catheter for applying a fluid pressure to the interior of the catheter to thereby cause the distal section of the catheter to expand outwardly to thereby release the embolic coil.
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Accused Products
Abstract
A medical device for placing an embolic coil at a preselected location within a vessel comprising a positioning catheter having a distal tip for retaining the embolic coil which when pressurized with a fluid expands outwardly to release the coil at the preselected position.
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Citations
22 Claims
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1. A vasoocclusive coil deployment system for use in placing a coil at a preselected site within a vessel comprising:
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an elongated flexible catheter having a lumen extending therethrough and having a proximal section and a distal section, said distal section of the catheter being formed of a material having a durometer which exhibits the characteristic that when a fluid pressure is applied to the interior of the catheter the walls of the distal section of the catheter expand outwardly; an embolic coil being disposed in fluid-tight engagement within the lumen of the distal section of the catheter; and
,a syringe coupled to the proximal section of the catheter for applying a fluid pressure to the interior of the catheter to thereby cause the distal section of the catheter to expand outwardly to thereby release the embolic coil. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A vasoocclusive coil deployment system for use in placing a coil at a preselected site within a vessel comprising:
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an elongated flexible catheter having a lumen extending therethrough and having a proximal section and a distal section, said distal section of the catheter being formed of a material having a durometer which exhibits the characteristic that when a fluid pressure of about 300 psi applied to the interior of the catheter the walls of the distal section of the catheter expand outwardly; an embolic coil being disposed in fluid-tight engagement within the lumen of the distal section of the catheter; and
,a piston coupled to the proximal section of the catheter for applying a fluid pressure to the interior of the catheter to thereby cause the distal section of the catheter to expand outwardly to thereby release the embolic coil. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A vasoocclusive coil deployment system for use in placing a coil at a preselected site within a vessel comprising:
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an elongated flexible catheter having a lumen extending therethrough and having a proximal section and a distal section, said distal section of the catheter being formed of a material having a durometer which exhibits the characteristic that when a fluid pressure of about 300 psi applied to the interior of the catheter the walls of the distal section of the catheter expand outwardly; an embolic coil being disposed in fluid-tight engagement within the lumen of the distal section of the catheter; and
,a fluid pressure generating device coupled to the proximal section of the catheter for applying a fluid pressure to the interior of the catheter to thereby cause the distal section of the catheter to expand outwardly to thereby release the embolic coil. - View Dependent Claims (14, 15, 16, 17)
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18. An implant device deployment system for use in placing an implant device at a preselected site within a vessel comprising:
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an elongated flexible catheter having a lumen extending therethrough and having a proximal section and a distal section, said distal section of the catheter being formed of a material having a durometer which exhibits the characteristic that when a fluid pressure of about 300 psi applied to the interior of the catheter the walls of the distal section of the catheter expand outwardly; an implant device being disposed in fluid-tight engagement within the lumen of the distal section of the catheter; and
,a piston coupled to the proximal section of the catheter for applying a fluid pressure to the interior of the catheter to thereby cause the distal section of the catheter to expand outwardly to thereby release the implant device. - View Dependent Claims (19, 20, 21, 22)
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Specification