Method for the elimination or the enlargement of points of constriction in vessels carrying body fluids
First Claim
1. A method of treating stenosis by eliminating or expanding the points of constriction which are customarily formed of a sponge-like calcified and fatty tissue in blood carrying vessels of the body through use of a flexible treatment catheter having separate support conduits formed by longitudinal partition walls and at whose end two balloons are situated, said method comprising the steps of sealing off the section of the blood vessel containing the stenosis with the two balloons, introducing a solvent of predetermined concentration and duration of effect to act upon the stenosis through a first support conduit in the catheter such that the tissue of the stenosis is dissolved, softened, or crumbled into smaller particles, and draining the particles from the sealed section of the blood vessel through a second separate support conduit.
5 Assignments
0 Petitions
Accused Products
Abstract
For the provision of an apparatus to lessen or remove points of constriction in vessels of all types whereby ruptures and tears are to be avoided in the vessel walls and, during the treatment of stenosis in blood vessels, the danger of infarction is to be avoided, through use of a treatment catheter (1) that is equipped with two expandable balloons (4, 5) which seal off both sides of a point of constriction (6) in a vessel, whereby the degree of expansion of both balloons (4, 5) can be controlled externally, it is proposed that there be mounted in the wall of the treatment catheter (1) within the region confined by the balloons (4, 5) an inlet piece (A) for the supply of media capable of dissolving or crumbling into smaller particles the material (7) at the point of constriction and an outlet piece (B) for the removal of the material (7) dissolved or crumbled at the point of constriction, whereby these pieces are connected with an externally accessible conduit (10, 11) (FIG. 1).
448 Citations
10 Claims
- 1. A method of treating stenosis by eliminating or expanding the points of constriction which are customarily formed of a sponge-like calcified and fatty tissue in blood carrying vessels of the body through use of a flexible treatment catheter having separate support conduits formed by longitudinal partition walls and at whose end two balloons are situated, said method comprising the steps of sealing off the section of the blood vessel containing the stenosis with the two balloons, introducing a solvent of predetermined concentration and duration of effect to act upon the stenosis through a first support conduit in the catheter such that the tissue of the stenosis is dissolved, softened, or crumbled into smaller particles, and draining the particles from the sealed section of the blood vessel through a second separate support conduit.
Specification