Image-assisted delivery of an expander in a urethra

A delivery device configured for image-assisted delivery of an implantable expander in a urethra, the delivery device comprising:

• a cystoscope comprising an outer sheath, a lumen, and a distal end,
• the distal end configured to receive an implantable expander, and
• an ejection element configured to engage the implantable expander during placement of the implantable expander in a urethra;
• wherein the cystoscope is configured to illuminate and image a part of the urethra at the distal end of the outer sheath;
• wherein the ejection element is configured to grip the implantable expander and to push and pull the implantable expander along the delivery device;
• wherein the outer sheath is configured to be advanced along the urethra until the distal end is located within the urethra when the implantable expander is engaged by the ejection element within the outer sheath,
• wherein the outer sheath is configured to release the implantable expander to expand between a bladder neck and an external sphincter in the urethra for a treatment of benign prostatic hyperplasia (BPH).