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OCCLUSION DEVICE AND METHOD AND APPARATUS FOR INSERTING THE SAME

  • US 3,834,394 A
  • Filed: 02/23/1972
  • Issued: 09/10/1974
  • Est. Priority Date: 11/21/1969
  • Status: Expired due to Term
First Claim
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1. A device for effecting the occlusion of a blood vessel comprising an elongated hollow body element having a wall of resilient material, being of a cross-section permitting ready passage through a blood vessel to a desired point of occlusion and inflatable to have a cross section larger than that of said vessel, the distal and proximal end portions of said body element being substantially less deformable than said resilient wall, at least a portion of the proximal end portion being constituted by a perforable body of self-sealing material, and insertion means having a length sufficient to extend from an access opening in the body of the patient to the desired point of occlusion, said means being traversed throughout its length by an inflation lumen and terminating distally in a needle-like element projected through the proximal end of the body of self-sealing material, and adapted to be withdrawn therefrom, whereby the hollow body element may be advanced through the blood vessel to the desired point of occlusion, inflated by fluid introduced through the inflation lumen and deposited in the vessel by disengagement of said needle-like element from said proximal end and withdrawal of said inserting means from such a vessel, with said hollow body element being in operatively self-sustaining fixed engagement with the vessel sidewalls throughout a circumferential band, distributing resulting outwardly directed pressure forces over a substantial unbroken area of the vessel sidewalls, thereby protecting the latter from concentrated puncturing or rupturing forces.

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