Tympanostomy tube delivery device with cutting dilator
First Claim
1. An apparatus comprising:
- (a) a body;
(b) a cannula extending distally from the body, wherein the cannula has an open distal end;
(c) a cylindraceous member disposed within the cannula, wherein the cylindraceous member includes;
(i) a tubular portion defining a longitudinal axis, wherein the tubular portion has a distal end and an outer diameter; and
(ii) a plurality of leaves positioned at the distal end of the tubular portion, wherein the plurality of leaves are movable between a collapsed position and an expanded position,wherein the cylindraceous member is slidable relative to the cannula to selectively expose the plurality of leaves relative to the open distal end of the cannula,wherein a first leaf of the plurality of leaves has a sharp distal point configured to pierce a tympanic membrane and a longitudinally extending sharp edge configured to extend outside the outer diameter of the tubular portion in the expanded position.
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0 Petitions
Accused Products
Abstract
A tympanostomy tube delivery device comprises a body, a cannula extending distally from the body, and a cylindraceous member disposed within the cannula. The cylindraceous member comprises a tubular portion and a plurality of leaves positioned at the distal end of the tubular portion. The leaves are movable between a collapsed position and an expanded position. The cylindraceous member is slidable relative to the cannula to selectively expose the leaves relative to the open distal end of the cannula. A first leaf of the plurality of leaves has a sharp distal point configured to pierce a tympanic membrane and a longitudinally extending sharp edge. The cylindraceous member may be used to create and dilate a myringotomy incision in a tympanic membrane. The tympanostomy tube delivery device may then be used to deploy a tympanostomy tube through the myringotomy incision.
194 Citations
20 Claims
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1. An apparatus comprising:
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(a) a body; (b) a cannula extending distally from the body, wherein the cannula has an open distal end; (c) a cylindraceous member disposed within the cannula, wherein the cylindraceous member includes; (i) a tubular portion defining a longitudinal axis, wherein the tubular portion has a distal end and an outer diameter; and (ii) a plurality of leaves positioned at the distal end of the tubular portion, wherein the plurality of leaves are movable between a collapsed position and an expanded position, wherein the cylindraceous member is slidable relative to the cannula to selectively expose the plurality of leaves relative to the open distal end of the cannula, wherein a first leaf of the plurality of leaves has a sharp distal point configured to pierce a tympanic membrane and a longitudinally extending sharp edge configured to extend outside the outer diameter of the tubular portion in the expanded position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An apparatus comprising:
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(a) a body; (b) a cannula extending distally from the body, wherein the cannula has an open distal end; (c) a cylindraceous member disposed within the cannula, wherein the cylindraceous member comprises; (i) a tubular portion defining an outer diameter; (ii) a first leaf extending distally from the tubular portion, wherein the first leaf has a sharp distal tip and a longitudinally extending sharp edge; and (iii) a second leaf extending distally from the tubular portion, wherein the first leaf and the second leaf are movable between a collapsed position and an expanded position, wherein the first leaf and the second leaf converge in the collapsed position, and wherein the longitudinally extending sharp edge of the first leaf is configured to extend outside the outer diameter of the tubular portion in the expanded position. - View Dependent Claims (18)
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19. An apparatus comprising:
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(a) a body; (b) a cannula extending distally from the body, wherein the cannula has an open distal end; (c) a cylindraceous member disposed within the cannula, wherein the cylindraceous member comprises; (i) a tubular portion defining a longitudinal axis, wherein the tubular portion has a distal end and an outer diameter; and (ii) a plurality of leaves movable between a collapsed position and an expanded position, wherein the plurality of leaves are positioned at the distal end of the tubular portion, wherein a first leaf of the plurality of leaves has a curved surface and a radially extending surface, wherein the curved surface and the radially extending surface converge to form a longitudinally extending sharp edge configured to extend outside the outer diameter of the tubular portion in the expanded position, and wherein the longitudinally extending sharp edge terminates in a sharp distal tip. - View Dependent Claims (20)
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Specification