Cannula insertion tool
First Claim
1. A cannula insertion tool comprising:
- a body including a first end portion, a second end portion, and a grip located between the first end portion and the second end portion, the body defining a channel extending through the first end portion and the grip, the body having a longitudinal axis extending through the first end portion, the grip, and the second end portion, wherein the grip is generally cylindrical and an outer surface of the grip is concave toward the longitudinal axis;
a slider including a drive member and an actuator, the drive member positioned within the channel of the body, the actuator extending outwardly from the second end portion of the body;
a needle coupled to the drive member adjacent the first end portion of the body, the needle movable with the slider between a retracted position, in which the needle is positioned substantially within the first end portion of the body, and an extended position, in which at least a portion of the needle extends outwardly from the first end portion of the body; and
a cannula supported by the needle, the cannula being movable with the needle between the retracted position and the extended position,wherein the grip is located between the needle and the actuator of the slider when the needle is in both the retracted position and the extended position.
1 Assignment
0 Petitions
Accused Products
Abstract
A cannula insertion tool includes a body having a first end portion, a second end portion, and a grip located between the first end portion and the second end portion. The body defines a channel extending through the first end portion and the grip. The insertion tool also includes a slider having a drive member and an actuator. The drive member is positioned within the channel of the body. The actuator extends outwardly from the second end portion of the body. The insertion tool further includes a needle coupled to the drive member adjacent the first end portion of the body. The needle is movable with the slider between a retracted position, in which the needle is positioned substantially within the first end portion of the body, and an extended position, in which at least a portion of the needle extends outwardly from the first end portion of the body.
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Citations
24 Claims
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1. A cannula insertion tool comprising:
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a body including a first end portion, a second end portion, and a grip located between the first end portion and the second end portion, the body defining a channel extending through the first end portion and the grip, the body having a longitudinal axis extending through the first end portion, the grip, and the second end portion, wherein the grip is generally cylindrical and an outer surface of the grip is concave toward the longitudinal axis; a slider including a drive member and an actuator, the drive member positioned within the channel of the body, the actuator extending outwardly from the second end portion of the body; a needle coupled to the drive member adjacent the first end portion of the body, the needle movable with the slider between a retracted position, in which the needle is positioned substantially within the first end portion of the body, and an extended position, in which at least a portion of the needle extends outwardly from the first end portion of the body; and a cannula supported by the needle, the cannula being movable with the needle between the retracted position and the extended position, wherein the grip is located between the needle and the actuator of the slider when the needle is in both the retracted position and the extended position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A cannula insertion tool comprising:
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a body including an end portion and a grip, the body defining a channel extending through the end portion and the grip, the body having a longitudinal axis extending through the end portion and the grip, wherein the grip is generally cylindrical and an outer surface of the grip is concave toward the longitudinal axis; a slider including a drive member and an actuator, the drive member positioned within the channel of the body, the actuator extending outwardly from the body; a needle coupled to the drive member adjacent the end portion of the body, the needle movable with the slider between a retracted position, in which the needle is positioned substantially within the body, and an extended position, in which at least a portion of the needle extends outwardly from the end portion of the body; a scleral marker coupled to and extending from the end portion of the body; and a cannula supported by the needle, the cannula being movable with the needle between the retracted position and the extended position, wherein the grip is located between the needle and the actuator of the slider when the needle is in both the retracted position and the extended position. - View Dependent Claims (16, 17, 18, 19)
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20. A cannula insertion tool comprising:
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a body including a first end portion, a second end portion, a grip located between the first end portion and the second end portion, and a longitudinal axis extending through the first end portion, the grip, and the second end portion, the body defining a channel extending through the first end portion and the grip, wherein the grip is generally cylindrical and an outer surface of the grip is concave toward the longitudinal axis; a slider including a drive member and an actuator, the drive member positioned within the channel of the body and having a first end and a second end, the actuator coupled to the second end of the drive member and extending outwardly from the second end portion of the body; a needle coupled to the first end of the drive member adjacent the first end portion of the body, the needle movable with the slider along the longitudinal axis between a retracted position, in which the needle is positioned substantially within the first end portion of the body, and an extended position, in which at least a portion of the needle extends outwardly from the first end portion of the body; a scleral marker coupled to and extending from the first end portion of the body in a direction generally parallel to the longitudinal axis; and a cannula supported by the needle, the cannula being movable with the needle between the retracted position and the extended position, wherein the grip is located between the needle and the actuator of the slider when the needle is in both the retracted position and the extended position.
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21. A method of performing an ophthalmic surgical procedure, the method comprising:
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grasping an insertion tool with a single human hand, the insertion tool including a body having an end portion, a grip, and a channel extending through the end portion and the grip, the body having a longitudinal axis extending through the end portion and the grip, wherein the grip is generally cylindrical and an outer surface of the grip is concave toward the longitudinal axis, a slider having a drive member and an actuator, the drive member positioned within the channel of the body, the actuator extending outwardly from the body, a needle coupled to the drive member adjacent the end portion of the body, the needle movable with the slider between a retracted position, in which the needle is positioned substantially within the body, and an extended position, in which at least a portion of the needle extends outwardly from the end portion of the body, a scleral marker coupled to and extending from the end portion of the body, and a cannula supported by the needle, the cannula being movable with the needle between the retracted position and the extended position, wherein the grip is located between the needle and the actuator of the slider when the needle is in both the retracted position and the extended position; marking a surgical site with the scleral marker while the insertion tool is grasped in the single human hand; and moving the needle and the cannula to the extended position while the insertion tool is grasped in the single human hand. - View Dependent Claims (22, 23, 24)
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Specification