Simulated valve device for airway
Embodiments of a simulated valve device can be used to determine whether a valve device would fit within a particular airway. The simulated valve device can include a shaft having at least one strut extending radially therefrom. The strut and at least part of the shaft can be surrounded by a membrane for viewing through a bronchoscope. In some embodiments, the membrane can include markings for viewing by a user.
1. A simulated airway valve device comprising:
a handle;
a shaft configured to extend from the handle; and
a simulated valve section comprising:
at least one anchor strut including a first end extending generally radially from the shaft;
at least one valve strut extending proximally and radially from the shaft and located proximal to the at least one anchor strut, wherein the at least one valve strut includes a simulated valve portion and a proximal portion; and
a membrane including a first membrane portion covering radial ends of the at least one anchor strut and a second membrane portion partially covering the at least one valve strut,
wherein the membrane reduces in diameter moving proximally from a distal end of the first membrane portion and then the second membrane portion expands in diameter moving proximally to partially cover the at least one valve strut;
wherein the simulated valve section, when disposed in an airway, is configured to approximate the size of an airway valve,
wherein the proximal portion of the at least one valve strut that is at least partially covered by the second membrane portion is directly connected to the shaft,
wherein a proximal end of the membrane is located at a transition between the proximal portion and the simulated valve portion of the at least one valve strut,
wherein the proximal end of the at least one valve strut is not a free end,
wherein the at least one anchor strut is located distal from the at least one valve strut.
2. The device of claim 1 , wherein the membrane completely covers the at least one anchor strut.
3. The device of claim 1 , wherein the shaft is at least partially disposable within a bronchoscope.
4. The device of claim 1 , further comprising at least one atraumatic anchor at the end of the at least one anchor strut.
5. The device of claim 1 , wherein the simulated valve section comprises a plurality of anchor struts.
6. The device of claim 1 , wherein the membrane permits airflow in a proximal direction past the simulated airway valve device and substantially occludes airflow in a distal direction past the simulated airway valve device when the simulated airway valve device is deployed in the airway and when the simulated airway valve device is of an appropriate size for the airway.
7. The device of claim 2 , wherein the membrane fully covers the simulated valve portion of the at least one valve strut.
8. The device of claim 1 , wherein the at least one anchor strut includes an unattached second end.
9. A simulated airway valve device comprising:
a handle;
a shaft configured to extend from the handle;
a simulated anchor section comprising:
at least one anchor strut including a first end configured to extend radially from a distal end of the shaft; and
a first membrane extending completely around a distal end of the simulated airway device and covering the at least one anchor strut; and
a simulated valve section comprising:
at least one strut extending proximally and radially from a first section of the shaft and extending distally and radially from a second section of the shaft, wherein a distal portion of the at least one strut is a simulated valve portion; and
a second membrane covering the distal portion of the simulated valve section up to an apex of the at least one strut, wherein the second membrane expands in diameter moving proximally up to the apex;
wherein the first section of the shaft is distal of the second section of the shaft and proximal of the simulated anchor section;
wherein the at least one anchor strut is located distal from the at least one strut.
10. The device of claim 9 , wherein the at least one anchor strut includes an unattached second end.
11. The device of claim 1 , wherein the second membrane portion includes markings configured to indicate a size or a diameter of a patient's airway.
12. The device of claim 11 , wherein the markings include annular rings.
13. The device of claim 11 , wherein the markings include patterns, colors, textures, or fluorescence.
14. The device of claim 9 , wherein the second membrane includes markings configured to indicate a size or a diameter of a patient's airway.
15. The device of claim 14 , wherein the markings include annular rings.
16. The device of claim 14 , wherein the markings include patterns, colors, textures, or fluorescence.