Integrated system for the ballistic and nonballistic infixion and retrieval of implants
First Claim
1. A catheter for extending the barrel of a gas-operated gun for introduction into, passage through, and discharge within the lumen of a tubular anatomical structure, thus allowing a spherule to be embedded within the wall of said tubular anatomical structure.
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Accused Products
Abstract
Provided are methods and apparatus for the use of magnetic traction to maintain the patency of a tubular anatomical structure, whether a vessel, duct, the trachea, bronchus, bile duct, ureter, vas deferens, fallopian tube, or portions of the digestive tract, as to constitute means for extraluminal stenting. An extraluminal stent consists of a perimedial or medial intravascular and an extravascular component. The intravascular component consists of ferromagnetic spherules implanted aeroballistically or stays implanted by means of a special hand tool, while the extravascular component consists of a pliant jacket or mantle that has magnets mounted about its outer surface. A catheter adapted for use as the barrel of a gas-operated implant insertion gun is so devised that it can be used independently to perform an angioplasty and thereafter have its free or extracorporeal end inserted into the airgun to initiate implantation of the intravascular component without the need for withdrawal and reinsertion through the introducer sheath. When the implants must be spaced too closely together to be controlled by hand, a positional control system is used to effect discharge automatically. Spherules that consist entirely of medication or that have a radiation emitting seed as the core can be implanted with the same apparatus. A glossary of terms follows the specification.
410 Citations
45 Claims
- 1. A catheter for extending the barrel of a gas-operated gun for introduction into, passage through, and discharge within the lumen of a tubular anatomical structure, thus allowing a spherule to be embedded within the wall of said tubular anatomical structure.
- 30. A strip for implantion beneath the outer surface of a tubular anatomical structure.
- 38. An elastic sleeve with a slit along one side so that said sleeve can be opened to mantle about a tubular anatomical structure without restraining physiological changes in the caliber of said tubular anatomical structure.
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43. A bandage with ferromagnetic bodies interleaved between layers of nonallergenic sterile gauze on one side and a nonallergenic sterile stretchable fabric on the other side for tying about and so fastening said bodies around a tubular anatomical structure.
- 44. A bandage made of a nonallergenic sterile stretchable fabric having ferromagnetic clasps with sharp points mounted to the side of said bandage to be in contact with a tubular anatomical structure, said clasps arranged in at least two formations in facing relation so that stretching said fabric allows said clasps to undercut and so attach to the outer tissue of a tubular anatomical structure.
Specification