Vocal cord medialization
View Patent ↗Medical devices, medical device kits, and related methods of treatment are described. An exemplary medical device comprises a proximal portion having an outer surface defining a thread and an inner surface defining a passageway having a keyed portion, a distal portion providing an atraumatic tip, and a flexible main body extending between the proximal portion and the distal portion. The medical device can be positioned in contact with a paralyzed vocal cord to cause a desired medialization for treatment of the vocal cord. The flexible main body allows for deflection upon contact and/or interaction with another device passed into the airway of a treated patient.
1. A medical device, comprising:
a proximal portion having a proximal portion outer surface defining a thread and a proximal portion inner surface comprising a series of facets and defining a proximal passageway extending through a portion of the proximal portion;
a distal portion having a distal portion outer surface defining an atraumatic distal tip and a distal portion inner surface; and
a flexible main body attached to and extending between the proximal portion and the distal portion and defining a main passageway;
wherein the main body comprises a tubular member;
wherein the tubular member defines the main passageway; and
further comprising a helical member disposed within the main passageway;
wherein the helical member comprises an extension spring.
2. The medical device of claim 1 , wherein the helical member is in contact with the proximal portion.
3. The medical device of claim 2 , wherein the helical member is in contact with the distal portion.
4. The medical device of claim 1 , wherein the proximal portion defines a proximal stanchion; and
wherein the proximal stanchion is in engagement with the helical member.
5. The medical device of claim 4 , wherein the distal portion defines a distal stanchion; and
wherein the distal stanchion is in engagement with the helical member.
6. The medical device of claim 1 , wherein the proximal portion inner surface comprises a second series of facets; and
wherein the proximal passageway comprises a first keyed portion defined by the first series of facets and a second keyed portion defined by the second series of facets.
7. The medical device of claim 6 , wherein the first keyed portion has a first cross-sectional shape and the second keyed portion has a second cross-sectional shape; and
wherein the first cross-sectional shape is different from the second cross-sectional shape.
8. The medical device of claim 1 , wherein the distal portion inner surface defines an opening in communication with the main passageway.
9. The medical device of claim 1 , wherein the distal portion outer surface defines a hemispherical surface.
10. A medical device, comprising:
a proximal portion having a proximal portion outer surface defining a thread and a proximal portion inner surface comprising a series of facets and defining a proximal passageway extending through a portion of the proximal portion;
a distal portion having a distal portion outer surface defining an atraumatic distal tip and a distal portion inner surface; and
a flexible main body attached to and extending between the proximal portion and the distal portion and defining a main passageway;
wherein the main body comprises a tubular member;
wherein the tubular member defines the main passageway; and
further comprising a helical member disposed within the main passageway;
wherein the helical member comprises a spring.