Device for anastomosis in a radical retropubic prostatectomy
OwnerMichael Seibainventor
Life of this patent
Estimating the term…
Abstract
An anastomosis method and device is disclosed. In one embodiment, an anastomosis device may include a superelastic stent body having a longitudinal cavity that extends from proximal and distal ends of the stent body. Proximal and distal rows of retractable needles having a substantially concave curvature may be circumferentially positioned around the stent body. The device may be configured so that the proximal and distal rows of retractable needles are individually deployable in approximated lumens, such as a urethra and bladder. Once deployed, the proximal and distal rows of retractable needles respectively engage the urethra and bladder.
Claims20
An anastomosis device comprising:
- a superelastic stent body comprising biocompatible material and having a longitudinal cavity that extends from proximal and distal ends of said stent body;
- a proximal row of retractable needles having a substantially concave curvature circumferentially positioned around said stent body, wherein said proximal row of said retractable needles is positioned relative to said proximal end of said stent body and facing a mid-line of said stent body;
- a distal row of retractable needles having a substantially concave curvature and circumferentially positioned around said stent body, wherein said distal row of said retractable needles is positioned relative to said distal end of said stent body and facing said mid-line of said stent body;
- and
- wherein said proximal and distal rows of retractable needles are individually deployable in approximated first and second body lumens such that once deployed, said proximal and distal rows of retractable of needles respectively engage said first and second body lumens.
A method for anastomosis of a urethra to a bladder, said method comprising:
- providing an anastomosis device including:
- a superelastic stent body comprising biocompatible material;
- a proximal row of retractable needles having a substantially concave curvature circumferentially positioned around said stent body and relative to a proximal end of said stent body;
- a distal row of retractable needles having a substantially concave curvature and circumferentially positioned around said stent body and relative to a distal end of said stent body;
- advancing a catheter containing said anastomosis device through said urethra until a distal end of said catheter clears said urethra and is contained within said bladder;
- retracting said catheter to expose a portion of said stent body, wherein said exposed portion of said stent body expands and causes said distal row of retractable needles to engage said bladder;
- and
- retracting said catheter to expose a remaining portion of said stent body, wherein said remaining portion of said stent body expands and causes said proximal row of retractable needles to engage said urethra.
An anastomosis device comprising:
- a stent body comprising biocompatible material and having a longitudinal cavity that extends from proximal and distal ends of said stent body;
- a proximal row of retractable needles having a substantially concave curvature circumferentially positioned around said stent body, wherein said proximal row of said retractable needles is positioned relative to said proximal end of said stent body and facing a mid-line of said stent body;
- a distal row of retractable needles having a substantially concave curvature and circumferentially positioned around said stent body, wherein said distal row of said retractable needles is positioned relative to said distal end of said stent body and facing said mid-line of said stent body;
- a catheter having an elongated tube extending from a proximal end that remains outside of a patient's body, to a distal end that is insertable into a patient's urethra and bladder;
- and
- wherein said proximal and distal rows of retractable needles are individually deployable in said urethra and bladder using said catheter, such that once deployed, said proximal and distal rows of retractable of needles respectively engage said urethra and bladder.
Dependencies are inferred from the claim text.