NASAL IMPLANTS AND SYSTEMS AND METHOD OF USE
Described are implants for placing in a body, tools for delivering the implants, and systems and methods for using implants and tools for placing in a body and more particularly to nasal implants, tools for delivering nasal implants, and systems and methods for using such implants and tools. A tool may include a hand-held implant delivery device that holds, moves, orients, inserts, or shapes an implant. An implant may be a biodegradable, longitudinal implant that may be oriented for implantation by an implant delivery device.
1 . A nasal implant delivery tool comprising:
a handle including an implant loading chamber adapted to receive a nasal implant;
a needle extending distally from the handle to a distal end, wherein the needle comprises a needle lumen having an opening at the distal end, wherein the distal end is sharp;
an actuator configured to move the nasal implant along the needle lumen and toward the opening at the distal end of the needle; and
an implant orientation indicator, wherein the implant orientation indicator is configured to provide a visual indication of a plane formed by a first implant arm and a second implant arm of the nasal implant corresponding to an orientation of the nasal implant in the needle.
2 . The nasal implant delivery tool of claim 1 , wherein the implant orientation indicator includes a first indicator arm projecting from the handle in a first direction and a second indicator arm projecting from the handle in a second direction.
3 . The nasal implant delivery tool of claim 2 , wherein the first direction is opposite the second direction.
4 . The nasal implant delivery tool of claim 2 , wherein the first implant arm and the second implant arm have (i) a contracted configuration in which the first implant arm and the second implant arm are contracted toward a central longitudinal axis of the nasal implant and (ii) an expanded configuration in which the first implant arm and the second implant arm extend away from the central longitudinal axis by a greater extent than when the first implant arm and the second implant arm are in the contracted configuration, and
wherein the first indicator arm and the second indicator arm define a plane that is substantially similar to the plane formed by the first implant arm and the second implant arm of the nasal implant when the nasal implant is in the expanded configuration.
5 . The nasal implant delivery tool of claim 4 , wherein the first implant arm and the second implant arm each have an arc shape when the nasal implant is in the expanded configuration, and
wherein the first indicator arm and the second indicator arm each have the arc shape.
6 . The nasal implant delivery tool of claim 4 , wherein the handle comprises a loading chamber that is configured to receive the nasal implant while the nasal implant is in the expanded configuration.
7 . The nasal implant delivery tool of claim 6 , wherein the actuator is configured to move the nasal implant from the loading chamber to the needle lumen,
wherein the loading chamber of the nasal implant delivery tool is configured to transition the nasal implant from the expanded configuration to the contracted configuration as the nasal implant moves through the loading chamber and into the needle lumen.
8 . The nasal implant delivery tool of claim 7 , wherein the first implant arm and the second implant arm are biased toward the expanded configuration, and
wherein, while the nasal implant is in the contracted configuration in the needle lumen, the implant orientation indicator is configured to indicate the orientation that the nasal implant will be in when the nasal implant is delivered out the distal end of the needle lumen and transitions back to the expanded configuration.
9 . The nasal implant delivery tool of claim 1 , wherein the implant orientation indicator is at the distal end of the handle.
10 . The nasal implant delivery tool of claim 1 , wherein the implant loading chamber is configured to receive a cartridge containing the nasal implant.
11 . The nasal implant delivery tool of claim 10 , wherein the cartridge is configured to contain two or more nasal implants.
12 . The nasal implant delivery tool of claim 10 , wherein the first implant arm and the second implant arm have (i) a contracted configuration in which the first implant arm and the second implant arm are contracted toward a central longitudinal axis of the nasal implant and (ii) an expanded configuration in which the first implant arm and the second implant arm extend away from the central longitudinal axis by a greater extent than when the first implant arm and the second implant arm are in the contracted configuration,
wherein the cartridge further comprises an implant engagement ramp that is configured to engage with the first implant arm and the second implant arm of the nasal implant to transition the nasal implant between the expanded configuration and the contracted configuration.
13 . The nasal implant delivery tool of claim 1 , wherein the actuator comprises a push-rod, a plunger assembly, and a compression element coupling the push-rod to the plunger assembly.
14 . The nasal implant delivery tool of claim 13 , wherein the compression element is configured to provide a distal axial force on the nasal implant.
15 . The nasal implant delivery tool of claim 13 , further comprising a push-rod locking element proximal to the implant loading chamber, wherein the push-rod locking element is configured to limit proximal movement of the push-rod relative to the handle such that the push-rod does not slide entirely out of an interior portion of the handle.
16 . The nasal implant delivery tool of claim 15 , wherein the push-rod comprises a notch, and wherein the push-rod locking element is configured to engage a notch on the push-rod.
17 . The nasal implant delivery tool of claim 13 , wherein the needle is movable relative to the handle between a plurality of discrete positions for accommodating nasal implants of different lengths.
18 . The nasal implant delivery tool of claim 17 , further comprising a needle slider actuator configured to move the needle between the plurality of discrete positions relative to the handle.
19 . The nasal implant delivery tool of claim 13 , wherein a length of the actuator is adjustable between a first position and a second position,
wherein the plunger assembly comprises a first locking surface and a second locking surface,
wherein the length of the actuator is at the first position when the push-rod engages the first locking surface of the plunger assembly, and
wherein the length of the actuator is at the second position when the push-rod engages the second locking surface on the plunger assembly.
20 . The nasal implant delivery tool of claim 1 , further comprising an actuator register configured to indicate a position of the actuator corresponding to the nasal implant being at the distal end of the needle,
wherein the actuator register comprises at least one feature selected from a group consisting of: (i) a marking on at least one of the actuator or on the handle, and (ii) a stop element limiting movement of the actuator.