Infusion sleeve with distendable port
First Claim
1. A phacoemulsification irrigation sleeve comprising:
- a body configured to operatively connect to a phacoemulsification needle,the body having proximal and distal ends and defining a passageway for liquid,a first irrigation port in the body between the proximal and distal ends of the body through which fluid in the passageway can flow,the body slit to define a “
U ”
shape that forms a first flap,the “
U ”
shape made up of spaced, non-straight legs having spaced ends,the legs cooperatively produce a bulged shape between the leg ends,the first flap elongate in a direction between the proximal and distal ends,the body configured to define a living hinge for the first flap,the first flap configured to swing away from the first irrigation port at the living hinge in response to pressure of fluid flowing in the passageway to thereby reduce resistance of fluid flow through the first irrigation port,the first flap configured so that the first flap, when swinging away from the first irrigation port, is oriented to direct fluid flowing through the first irrigation port in a direction from the proximal end of the body toward the distal end of the body.
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Accused Products
Abstract
A phacoemulsification irrigation sleeve having a body configured to operatively connect to a phacoemulsification needle. The body has proximal and distal ends and defines a passageway for liquid. A first irrigation port is formed in the body between its proximal and distal ends. The body is slit to define a first flap configured to swing away from the first irrigation port in response to pressure of fluid flowing in the passageway to thereby reduce resistance of fluid flow through the first irrigation port. The first flap, when swung away from the first irrigation port, is oriented to direct fluid flowing through the first irrigation port in a direction from the proximal end of the body toward the distal end of the body.
18 Citations
16 Claims
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1. A phacoemulsification irrigation sleeve comprising:
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a body configured to operatively connect to a phacoemulsification needle, the body having proximal and distal ends and defining a passageway for liquid, a first irrigation port in the body between the proximal and distal ends of the body through which fluid in the passageway can flow, the body slit to define a “
U ”
shape that forms a first flap,the “
U ”
shape made up of spaced, non-straight legs having spaced ends,the legs cooperatively produce a bulged shape between the leg ends, the first flap elongate in a direction between the proximal and distal ends, the body configured to define a living hinge for the first flap, the first flap configured to swing away from the first irrigation port at the living hinge in response to pressure of fluid flowing in the passageway to thereby reduce resistance of fluid flow through the first irrigation port, the first flap configured so that the first flap, when swinging away from the first irrigation port, is oriented to direct fluid flowing through the first irrigation port in a direction from the proximal end of the body toward the distal end of the body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A phacoemulsification irrigation sleeve comprising:
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a body configured to operatively connect to a phacoemulsification needle, the body having proximal and distal ends and defining a passageway for liquid, a first irrigation port in the body between the proximal and distal ends of the body through which fluid in the passageway can flow, the body slit to define a first flap, the first flap configured to swing away from the first irrigation port in response to pressure of fluid flowing in the passageway to thereby reduce resistance of fluid flow through the first irrigation port, the first flap configured so that the first flap, when swinging away from the first irrigation port, is oriented to direct fluid flowing through the first irrigation port in a direction from the proximal end of the body toward the distal end of the body, wherein the body is slit to define a horseshoe shape that opens towards the proximal end of the body.
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15. A phacoemulsification irrigation sleeve comprising:
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a body configured to operatively connect to a phacoemulsification needle, the body having proximal and distal ends and defining a passageway for liquid, a first irrigation port in the body between the proximal and distal ends of the body through which fluid in the passageway can flow, the body slit to define a first flap, the first flap elongate in a direction between the proximal and distal ends. the body configured to define a first living hinge for the first flap, a part of the first flap configured to swing away from the first irrigation port at the first living hinge in response to pressure of fluid flowing in the passageway to thereby reduce resistance of fluid flow through the first irrigation port, the first flap configured so that the part of the first flap, when swinging away from the first irrigation port, is oriented to direct fluid flowing through the first irrigation port in a direction from the proximal end of the body toward the distal end of the body, wherein the first living hinge extends between spaced points, wherein the body is configured to define a second living hinge for the first flap spaced from the first living hinge. - View Dependent Claims (16)
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Specification