INTRODUCER ASSEMBLY
First Claim
1. An introducer assembly comprising:
- an introducer sheath comprised of a sheath tube possessing a proximal end, a sheath huh attached to the proximal end of the sheath tube and possessing a proximal end portion, and a hemostatic valve attached to the proximal end portion of the sheath huh, the hemostatic valve possessing a through passage for a catheter to pass through;
a dilator comprised of a dilator tube and a dilator hub, the dilator tube possessing a proximal end, the dilator hub being attached to the proximal end of the dilator tube;
a cap positioned between the sheath hub and the dilator hub, the cap possessing a through-hole;
the dilator tube passing through the through-hole of the cap and passing through the through passage of the hemostatic valve;
the cap being positioned in a first position in which an engaging member on the cap and the sheath hub are spaced from one another, the cap being axially movable in a distal direction to a second position in which the engaging member on the cap and the sheath hub engage one another to hold the cap at the second position; and
a deforming member positioned between the hemostatic valve and the cap to press the hemostatic valve as the cap is moved to the second position to apply a compressive force to the hemostatic valve that causes closure of the passage in the hemostatic valve.
1 Assignment
0 Petitions
Accused Products
Abstract
An introducer assembly is composed of an introducer sheath and a dilator which have been previously integrated with each other to permit the hemostatic valve to exhibit its hemostatic function over an extended period of time without significantly adversely affecting the inherent function of the dilator tube. The introducer assembly includes a dilator tube passing through a passage of a hemostatic valve. The introducer assembly has a deforming member arranged between the hemostatic valve and a cap. As the cap is pushed toward the proximal end surface of a sheath hub for engagement with the sheath hub, the cap presses the hemostatic valve and applies a compressive force to the hemostatic valve in such a direction as to close the passage.
-
Citations
23 Claims
-
1. An introducer assembly comprising:
-
an introducer sheath comprised of a sheath tube possessing a proximal end, a sheath huh attached to the proximal end of the sheath tube and possessing a proximal end portion, and a hemostatic valve attached to the proximal end portion of the sheath huh, the hemostatic valve possessing a through passage for a catheter to pass through; a dilator comprised of a dilator tube and a dilator hub, the dilator tube possessing a proximal end, the dilator hub being attached to the proximal end of the dilator tube; a cap positioned between the sheath hub and the dilator hub, the cap possessing a through-hole; the dilator tube passing through the through-hole of the cap and passing through the through passage of the hemostatic valve; the cap being positioned in a first position in which an engaging member on the cap and the sheath hub are spaced from one another, the cap being axially movable in a distal direction to a second position in which the engaging member on the cap and the sheath hub engage one another to hold the cap at the second position; and a deforming member positioned between the hemostatic valve and the cap to press the hemostatic valve as the cap is moved to the second position to apply a compressive force to the hemostatic valve that causes closure of the passage in the hemostatic valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. An introducer assembly comprising:
-
an introducer sheath comprised of a sheath tube possessing a proximal end, a sheath hub attached to the proximal end of the sheath tube and possessing a proximal end portion and an axis extending in an axial direction, and a hemostatic valve attached to the proximal end portion of the sheath hub, the hemostatic valve possessing a through passage for a catheter to pass through; a dilator comprised of a dilator tube and a dilator hub, the dilator tube possessing a proximal end and a distal end, the dilator hub being attached to the proximal end of the dilator tube; the dilator tube passing through the through passage of the hemostatic valve, the dilator being movable in a proximal direction relative to the introducer sheath so that the dilator tube is removed from the through passage of the hemostatic valve; a deforming member positioned between the sheath hub and the hemostatic valve, the deforming member being movable in a moving direction intersecting the axial direction of the sheath hub, after the dilator tube is removed from the through passage of the hemostatic valve as a result of the dilator being moved in the proximal direction relative to the introducer sheath, to press the hemostatic valve in a manner applying a compressive force to the hemostatic valve which closes the passage; and an engaging member positioned to be engaged by the sheath hub so that with the sheath hub in engagement with the engagement member the engaging member continues to press the hemostatic valve in a manner applying the compressive force to the hemostatic valve which closes the passage. - View Dependent Claims (11, 12, 13, 14, 15, 16)
-
-
17. An introducer assembly comprising
an introducer sheath comprised of a sheath tube possessing a proximal end, a sheath hub attached to the proximal end of the sheath tube and possessing a tapering interior part tapering in a narrowing manner toward the sheath tube, and a hemostatic valve positioned in the tapering interior part and possessing a through passage for a catheter to pass through; -
a dilator comprised of a dilator tube possessing a proximal end and a dilator hub attached to the proximal end of the dilator tube, the dilator tube also possessing a distal end; a cap possessing a through-hole and positioned between the sheath hub and the dilator hub; the dilator tube passing through the through-hole of the cap and passing through the through passage of the hemostatic valve; the cap being positioned in a first position in which an engaging member on the cap and the sheath hub are spaced from one another, the cap being axially movable in a distal direction to a second position in which the engaging member on the cap and the sheath hub engage one another to hold the cap at the second position; and a deforming member positioned between the hemostatic valve and the cap to move the hemostatic valve in the distal direction toward a distal end of the tapering interior part as the cap is axially moved toward the second position, with movement of the hemostatic valve in the distal direction toward the distal end of the tapering part applying a compressive force to the hemostatic valve in a direction closing the passage. - View Dependent Claims (18, 19, 20, 21, 22, 23)
-
Specification