Access device with valve
First Claim
1. A medical article comprising:
- a sheath comprising;
a splittable sheath hub comprising a cylindrical, longitudinally extending hub wall, the longitudinally extending hub wall having an inner surface and an outer surface, the longitudinally extending hub wall defining a longitudinal axis and forming an inner cavity through which the longitudinal axis extends; and
a valve element comprising;
a resilient plate comprising a mounting portion and a sealing portion,the mounting portion being supported within the longitudinally extending hub wall on an oblique surface formed between the inner surface and the outer surface at a first oblique angle relative to the longitudinal axis and extending inwardly from the inner surface of the longitudinally extending hub wall, andthe sealing portion extending into the inner cavity; and
a sealing element comprising a first sealing surface and being supported by the resilient plate,wherein the first oblique angle biases the sealing element toward a position against a second sealing surface on the splittable sheath hub to substantially seal at least a portion of the inner cavity.
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Accused Products
Abstract
A splittable sheath includes a splittable sheath body, a splittable sheath hub, and a valve element. The sheath body comprises a generally flexible tubular structure, a proximal end, and a distal end. The sheath body defines a longitudinal axis and is splittable into two halves along a pre-determined line generally parallel to the longitudinal axis. The sheath hub extends from the proximal end of the sheath body and defines a longitudinal axis generally aligned with the longitudinal axis of the sheath body. The sheath body and sheath hub form an inner cavity along their respective longitudinal axes. The valve element includes a resilient plate and a sealing element. The resilient plate includes a distal portion extending radially inwardly from a side of the inner cavity.
152 Citations
28 Claims
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1. A medical article comprising:
- a sheath comprising;
a splittable sheath hub comprising a cylindrical, longitudinally extending hub wall, the longitudinally extending hub wall having an inner surface and an outer surface, the longitudinally extending hub wall defining a longitudinal axis and forming an inner cavity through which the longitudinal axis extends; and
a valve element comprising;a resilient plate comprising a mounting portion and a sealing portion, the mounting portion being supported within the longitudinally extending hub wall on an oblique surface formed between the inner surface and the outer surface at a first oblique angle relative to the longitudinal axis and extending inwardly from the inner surface of the longitudinally extending hub wall, and the sealing portion extending into the inner cavity; and
a sealing element comprising a first sealing surface and being supported by the resilient plate,wherein the first oblique angle biases the sealing element toward a position against a second sealing surface on the splittable sheath hub to substantially seal at least a portion of the inner cavity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
- a sheath comprising;
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21. An access device, comprising:
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a needle;
a dilator; and
a splittable sheath comprising;a splittable sheath body; a splittable sheath hub extending from a proximal end of the sheath body, the splittable sheath hub comprising a longitudinally extending hub wall having an inner surface and an outer surface, wherein the sheath body and sheath hub forming an inner cavity along a longitudinal axis defined by the sheath body and sheath hub; and
a valve element comprising;a resilient plate comprising a mounting portion and a sealing portion, the mounting portion being supported within the longitudinally extending hub wall on an oblique surface formed between the inner surface and the outer surface at a first oblique angle relative to the longitudinal axis and extending inwardly from the inner surface of the longitudinally extending hub wall, and the sealing portion extending into the inner cavity; and
a sealing element comprising a first sealing surface and being supported by the resilient plate;wherein the first oblique angle biases the sealing element toward a first position against a second sealing surface on at least one of the splittable sheath body and the splittable sheath hub to substantially seal the inner cavity, and wherein the sealing element is movable from the first position to a second position when at least one of the needle and dilator is extended through the cavity, without substantial contact between the at least one of the needle and dilator and the first sealing surface. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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Specification