Back to results
US 8,945,058 B2Granted
Trocar cannula with atraumatic tip
AssigneeApplied Medical Resources Corporation
InventorsKennii Pravongviengkham, Henry Kahle, Jeremy J. Albrecht, Scott V. Taylor
Life of this patent
Estimating the term…
Abstract
A surgical access port is provided with a trocar cannula having a substantially rigid portion and an atraumatic distal tip. The atraumatic distal tip is substantially compliant relative to the rigid portion of the cannula. The trocar cannula provides unobstructed surgical access into a body cavity allowing the insertion and removal of surgical instruments through the trocar cannula and into the body cavity using a minimal sized incision or entryway.
Claims36
A surgical access system comprising:
- a trocar cannula comprising:
- a rigid elongate body having a proximal enlarged end and a distal tip end with a lumen extending from the proximal end to the distal end for inserting and removing surgical instruments through the lumen;
- and
- an atraumatic tip integrated with and extending from the distal tip end of the elongate body, the atraumatic tip being more compliant than the elongate body and formed from a material different from the elongate body;
- and
- wherein the rigid elongate body comprises a plurality of annular projections formed on the distal tip end of the elongate body such that the plurality of annular projections provides a mechanical interlock on the elongate body at an interface with the atraumatic tip such that the atraumatic tip is restricted from moving in a proximal and a distal direction relative to the rigid elongate body;
- and
- an obturator insertable through the lumen of the elongate body and the atraumatic tip, the atraumatic tip having an inner diameter less than an outer diameter of the obturator.
5 more elements
A surgical access system comprising:
- a trocar cannula comprising:
- a rigid elongate body having a proximal enlarged end and a distal tip end with a lumen extending from the proximal end to the distal end for inserting and removing surgical instruments through the lumen;
- and
- an atraumatic tip integrated with and extending from the distal tip end of the elongate body, the atraumatic tip being more compliant than the elongate body and formed from a material different from the elongate body;
- and
- wherein the rigid elongate body comprises a plurality of annular projections formed on the distal tip end of the elongate body such that the plurality of annular projections provides a mechanical interlock on the elongate body at an interface with the atraumatic tip such that the atraumatic tip is restricted from moving in a proximal and a distal direction relative to the rigid elongate body;
- and
- a laparoscope insertable up to a proximal portion of the atraumatic tip, the atraumatic tip being transparent.
5 more elements
A trocar cannula comprising:
- a rigid elongate body having a proximal enlarged end and a distal tip end with a lumen extending from the proximal end to the distal end for inserting and removing surgical instruments through the lumen;
- and
- an atraumatic tip integrated with and extending from the distal tip end of the elongate body, the atraumatic tip being more compliant than the elongate body and formed from a material different from the elongate body;
- and
- wherein the rigid elongate body comprises a plurality of annular projections formed on the distal tip end of the elongate body such that the plurality of annular projections provides a mechanical interlock on the elongate body at an interface with the atraumatic tip such that the atraumatic tip is restricted from moving in a proximal and a distal direction relative to the rigid elongate body, wherein the lumen of the rigid elongate body has a first inner diameter, and wherein the atraumatic tip has a second inner diameter defined by a tapered narrowing transitioning from a relatively large proximal inner diameter corresponding to the first inner diameter of the rigid elongate body to a relatively small distal inner diameter.
2 more elements
Dependencies are inferred from the claim text.