Systems, devices, and methods for the accurate deployment and imaging of an implant in the prostatic urethra
Systems, devices, and methods are provided for the delivery of an implant into the prostatic urethra. Embodiments of delivery systems can include a delivery device for insertion into the patient and a proximal control device for use in controlling release of the implant from the delivery device.
1. A method of delivering an implant, the method comprising: advancing a delivery device within a urethra of a patient, wherein the delivery device includes an outer tubular member coupled with an imager, an inner tubular member being disposed within the outer tubular member and housing an implant; a distal control member slidably advanceable within the inner tubular member to cause deployment of the implant from within the inner tubular member; and a proximal control member (1) coupled with the inner tubular member and the distal control member, and (2) releasably coupled with the outer tubular member through a coupling member, wherein the proximal control member is configured to longitudinally move the inner tubular member and the outer tubular member concurrently when the coupling member is in a first position, and longitudinally move the outer tubular member relative to the inner tubular member to adjust the relative spacing between the imager and a distal end of the inner tubular member when the coupling member is in a second position, wherein the proximal control member includes a handle portion that is movable with respect to a proximal handle portion and an anti-rotator that when engaged limits relative rotation between the outer tubular member and the inner tubular member, and wherein the anti-rotator includes a groove on the handle portion that is configured to receive a detent coupled to an inside surface of the proximal handle portion;
longitudinally retracting the inner tubular member with respect to the proximal control member and the distal control member to at least partially deploy the implant from the inner tubular member; and
releasing the implant from the delivery device.
2. The method of claim 1 , wherein the detent is deflectable.
3. The method of claim 1 , wherein the detent is located on the inside surface of a distal section of the proximal handle portion.
4. The method of claim 1 , wherein the proximal handle portion further includes a strut having a first end and a second end, wherein the first end of the strut is attached to the inside surface of the proximal handle portion, and wherein the strut terminates in the detent at the second end.
5. The method of claim 1 , wherein the proximal handle portion is rotatable around the handle portion.
6. The method of claim 1 , wherein rotation of the proximal handle portion can dislodge the detent from the groove.
7. The method of claim 6 , wherein releasing the anti-rotator includes removing the detent from the groove.
8. The method of claim 7 , wherein the detent is removed from the groove by rotation of the proximal handle portion around the handle portion.
9. The method of claim 1 , further comprising the step of disengaging the anti-rotator to allow the outer tubular member to rotate with respect to the inner tubular member.