Catheter introducer

A gasket for use in a catheter introducer having a housing that contains the gasket, the gasket comprising: a self-sealing, one piece gasket having an inwardly facing surface, an outwardly facing surface, and a central aperture formed in its outwardly facing surface, the aperture extending a predetermined depth into the gasket and being defined in part by a circumferential wall; a plurality of slits formed in the inwardly facing surface of the gasket and extending radially from a central region, the slits having a depth such that they intersect the circumferential wall, the central region of the slits overlapping the central aperture and defining a plurality of flaps normally closing the aperture; the central aperture and the slits being dimensioned to enable the gasket to form a seal about a range of diameters of devices that includes guidewires and catheters; and an annular ring extending from and beyond the inner facing surface of the gasket, the ring being engageable by the housing to secure the gasket in the introducer.

A gasket for use in a catheter introducer having a housing that contains the gasket, the gasket comprising: a self-sealing, one piece gasket having an inwardly facing surface, an outwardly facing surface, a central aperture in its outwardly facing surface, the aperture extending a predetermined depth into the gasket and being defined in part by a circumferential wall; a plurality of slits formed in the inwardly facing surface of the gasket and extending radially from a central region, the slits having a depth such that they intersect the circumferential wall, the central region of the slits overlapping the central aperture and defining a plurality of flaps normally closing the aperture; and an annular ring extending from and beyond at least one surface of the gasket, the ring being engageable by the housing to secure the gasket in the housing.

A gasket for use in a catheter introducer having a housing that contains the gasket, the gasket comprising: a self-sealing one piece gasket having an inwardly facing surface and an outwardly facing surface; and an annular ring extending from and beyond at least one surface of the gasket, the ring being engageable by the housing to secure the gasket in the housing.

A catheter introducer comprising: a housing having an inner bore, an outer bore proximal of and forming a juncture with the inner bore, a shoulder defined at the juncture of the inner bore and the outer bore, and an annular recess defined by the shoulder, the outer bore being larger in diameter than the inner bore; a gasket having a diameter corresponding substantially to that of the outer bore, including an inwardly facing surface, an outwardly facing surface, and an annular ring extending from and beyond the inwardly facing surface of the gasket for cooperation with the annular recess in the shoulder; a cap supported by the housing and contacting the outwardly facing surface of the gasket to secure the gasket in the housing.

A catheter introducer comprising: a housing having an inner bore, an outer bore proximal of and forming a juncture with the inner bore, and a shoulder defined at the juncture of the inner bore and the outer bore, the outer bore being larger in diameter than the inner bore; a self-sealing gasket having a diameter corresponding substantially to that of the outer bore, including an inwardly facing surface contacting the shoulder and an outwardly facing surface; an annular shelf formed distally of the shoulder and extending into the inner bore, the annular shelf defining a space in the inner bore that reduces the diameter of the inner bore, the annular shelf providing an annular abutment surface to limit deformation of the gasket when an instrument is inserted into the housing; and an end cap supported by the housing and contacting the outwardly facing surface of the gasket to secure the gasket in the housing.

A gasket for use in a catheter introducer comprising: a self-sealing one piece gasket having an inwardly facing surface, an outwardly facing surface, and a central aperture in its outwardly facing surface, the aperture extending a predetermined depth into the gasket and terminating at a bottom wall; an annular ring extending from and beyond at least one surface of the gasket; a plurality of slits formed in the inwardly facing surface of the gasket and extending radially from a central region, the slits having a depth such that they intersect the bottom wall, the central region of the slits intersecting the bottom wall and defining a plurality of flaps normally closing the aperture; the radius of the central aperture being substantially less than the radius defined by each of the slits to seal a range of diameters of devices that includes guidewires and catheters.