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US 12,648,795 B2Granted
Safety trocar assembly
OwnerSamuel Gregory Sackettinventor
Life of this patent
Estimating the term…
Abstract
A trocar assembly includes a deployment assembly including: a cannula having an open end; a trocar disposed in the cannula and having a spear end; and an energizer acting on the trocar and configured to force the trocar from a safety position where the spear end is entirely within the cannula to an extended position where the spear end extends out of the open end; a key releasably coupled with the trocar and extending through the cannula such that the key holds the trocar in the safety position when coupled with the trocar in the safety position and uncoupling the key from the trocar allows the energizer to force the trocar from the safety position to the extended position; and a sheath assembly removably coupled to the deployment assembly, the sheath assembly including a sheath that covers the open end of the cannula.
Claims21
A trocar assembly, comprising:
- a deployment assembly comprising:
- a trocar extension assembly comprising:
- a cannula comprising an open end;
- a trocar disposed in the cannula and comprising a spear end;
- and
- an energizer acting on the trocar and configured to force the trocar from a safety position where the spear end is entirely within the cannula to an extended position where the spear end extends out of the open end of the cannula;
- a locking assembly comprising a key releasably coupled with the trocar and extending through the cannula such that the key holds the trocar in the safety position when coupled with the trocar in the safety position and uncoupling the key from the trocar allows the energizer to force the trocar from the safety position to the extended position;
- and
- a sheath assembly removably coupled to the deployment assembly, the sheath assembly comprising a sheath that covers the open end of the cannula, wherein the trocar comprises an extraction opening and the sheath comprises an extraction post that is shaped and sized to fit within the extraction opening of the trocar to capture the trocar.
6 more elements
A method of inserting and removing a trocar, the trocar being disposed within a cannula, the method comprising:
- energizing an energizer that acts on the trocar, the energizer being configured to force the trocar from a safety position where a spear end of the trocar is entirely within the cannula and an extended position where the spear end extends out of an open end of the cannula, wherein a coupled sheath covers the open end of the cannula;
- holding the trocar in the safety position with a key that is coupled with the trocar and extends through the cannula;
- uncoupling the sheath so the open end of the cannula is uncovered;
- placing the open end of the cannula on or adjacent to the skin of a patient;
- moving the key to release the trocar so the energizer forces the trocar from the safety position to the extended position such that the spear end pierces the skin of the patient;
- and
- capturing the spear end of the trocar using the sheath by fitting an extension post of the sheath in an extraction opening formed in the trocar.
4 more elements
A trocar assembly, comprising:
- a deployment assembly comprising:
- a trocar extension assembly comprising:
- a cannula comprising an open end;
- a trocar disposed in the cannula and comprising a spear end;
- and
- an energizer acting on the trocar and configured to force the trocar from a safety position where the spear end is entirely within the cannula to an extended position where the spear end extends out of the open end of the cannula;
- a locking assembly comprising a key releasably coupled with the trocar and extending through the cannula such that the key holds the trocar in the safety position when coupled with the trocar in the safety position and uncoupling the key from the trocar allows the energizer to force the trocar from the safety position to the extended position;
- a sheath assembly removably coupled to the deployment assembly, the sheath assembly comprising a sheath that covers the open end of the cannula;
- and
- a hose locking section that is coupled to the cannula and comprises a first lock section and a second lock section, each of the first lock section and the second lock section comprising a respective lock opening groove, the first lock section being pivotable relative to the second lock section from a closed position where the respective lock opening grooves together form a lock opening that is aligned with the trocar to an open position where the respective lock opening grooves are separated.
7 more elements
A trocar assembly, comprising:
- a deployment assembly comprising:
- a trocar extension assembly comprising:
- a cannula comprising an open end;
- a trocar disposed in the cannula and comprising a spear end;
- and
- an energizer acting on the trocar and configured to force the trocar from a safety position where the spear end is entirely within the cannula to an extended position where the spear end extends out of the open end of the cannula;
- a locking assembly comprising a key releasably coupled with the trocar and extending through the cannula such that the key holds the trocar in the safety position when coupled with the trocar in the safety position and uncoupling the key from the trocar allows the energizer to force the trocar from the safety position to the extended position;
- and
- a sheath assembly removably coupled to the deployment assembly, the sheath assembly comprising a sheath that covers the open end of the cannula, the sheath comprising a first sheath section comprising a first sheath opening that is aligned with the cannula and a second sheath section comprising a second sheath opening that extends at an angle relative to the first sheath opening.
6 more elements
Dependencies are inferred from the claim text.