Valve assembly with automatic valve

A valve assembly for use in a trocar assembly where the trocar assembly includes a cannula assembly having a first coupling and a hollow cannula, and a trocar having a proximal handle and an elongate element with the elongate element extending through the valve assembly and hollow cannula, said valve assembly comprising:

• a valve body defining a fluid passage dimensioned to permit the trocar to extend therethrough, said valve body including a well for receiving said valve and a second coupling including a plurality of ramped teeth;
• a valve cap for covering said well, said valve cap having a central opening dimensioned to receive the trocar and a third coupling including a plurality of radial openings in said valve cap;
• and
• a valve in fluid communication with said fluid passage, said valve configured to permit the trocar to be inserted through said valve and to automatically close said fluid passage when said trocar is removed from said valve, said valve having a plurality of trocar engaging protrusions which protrude axially from and which are spaced around said valve,
• wherein said valve body includes a valve body coupling configured to couple said valve assembly with the first coupling of the cannula assembly to effect a fluid coupling of said fluid passage with said cannula, and wherein the plurality of ramped teeth mate with and fit inside said plurality of radial openings to hold said valve in place.

A valve assembly for use in a trocar assembly where the trocar assembly includes a cannula assembly having a first coupling and a hollow cannula, and a trocar having a proximal handle and an elongate element with the elongate element extending through the valve assembly and hollow cannula, said valve assembly comprising:

• a valve body defining a fluid passage dimensioned to permit the trocar to extend therethrough, said valve body including a well for receiving said valve and a second coupling including a plurality of ramped teeth;
• a valve cap for covering said well, said valve cap having a central opening dimensioned to receive the trocar and a third coupling including a plurality of radial openings in said valve cap;
• and
• a valve in fluid communication with said fluid passage, said valve configured to permit the trocar to be inserted through said valve and to automatically close said fluid passage when said trocar is removed from said valve,
• wherein said valve body includes a valve body coupling for removably coupling said valve assembly with the first coupling of the cannula assembly to effect a fluid coupling of said fluid passage with said cannula, said valve body coupling including an internal thread on the valve body, said internal thread being configured to engage an external thread on the cannula assembly, and wherein the plurality of ramped teeth mate with and fit inside said plurality of radial openings to hold said valve in place.

A valve assembly for use in a trocar assembly where the trocar assembly includes a cannula assembly having a first coupling and hollow cannula, and a trocar having a proximal handle and an elongate element with the elongate element extending through the valve assembly and hollow cannula, said valve assembly comprising:

• a valve body defining a fluid passage dimensioned to permit the trocar to extend therethrough;
• a valve in fluid communication with said fluid passage, said valve configured to permit the trocar to be inserted through said valve and to automatically close said fluid passage when said trocar is removed from said valve;
• and
• a valve cap configured to cover the valve,
• wherein said valve body includes a valve body coupling configured to removably couple said valve assembly with the first coupling of the cannula assembly to effect a fluid coupling of said fluid passage with said cannula, said valve body having a plurality of teeth, said valve cap having a plurality of radial openings, the plurality of teeth configured to mate with and fit inside said plurality of radial openings to prevent rotational movement between the valve body and the valve cap and to hold the valve in place.

A valve assembly for use in a trocar assembly where the trocar assembly includes a cannula assembly having a first coupling and a hollow cannula, and a trocar having a proximal handle and an elongate element with the elongate element extending through the valve assembly and hollow cannula, said valve assembly comprising:

• a valve body defining a fluid passage dimensioned to permit the trocar to extend therethrough, said valve body including a distal portion;
• a valve in fluid communication with said fluid passage, said valve configured to permit the trocar to be inserted through said valve and to automatically close said fluid passage when said trocar is removed from said valve, said valve having a plurality of trocar engaging protrusions which protrude axially from and which are spaced around said valve, and
• a fluid seal surrounding said distal portion of said valve body,
• wherein said valve body includes a valve body coupling configured to couple said valve assembly with the first coupling of the cannula assembly to effect a fluid coupling of said fluid passage with said cannula.

A valve assembly for use in a trocar assembly where the trocar assembly includes a cannula assembly having a first coupling and a hollow cannula, and a trocar having a proximal handle and an elongate element with the elongate element extending through the valve assembly and hollow cannula, the first coupling including an external thread, said valve assembly comprising:

• a valve body defining a fluid passage dimensioned to permit the trocar to extend therethrough, said valve body including a distal portion:
• a valve in fluid communication with said fluid passage, said valve configured to permit the trocar to be inserted through said valve and to automatically close said fluid passage when said trocar is removed from said valve;
• and
• a fluid seal surrounding said distal portion of said valve body,
• wherein said valve body includes a valve body coupling for removably coupling said valve assembly with the first coupling of the cannula assembly to effect a fluid coupling of said fluid passage with said cannula, said valve body coupling including an internal thread on the valve body, said internal thread being configured to engage said external thread on the cannula assembly.

A valve assembly for use in a trocar assembly where the trocar assembly includes a cannula assembly having a first coupling and a hollow cannula, and a trocar having a proximal handle and an elongate element with the elongate element extending through the valve assembly and hollow cannula, said valve assembly comprising:

• a valve body defining a fluid passage dimensioned to permit the trocar to extend therethrough;
• and
• a valve in fluid communication with said fluid passage, said valve configured to permit the trocar to be inserted through said valve and to automatically close said fluid passage when said trocar is removed from said valve,
• wherein said valve body includes a valve body coupling configured to removably couple said valve assembly with the first coupling of the cannula assembly to effect a fluid coupling of said fluid passage with said cannula, and said valve body coupling includes a latch mechanism on said valve body which mates with the first coupling of the cannula assembly, said latch mechanism including a resilient tongue having a protrusion extending outward from said resilient tongue.

A valve assembly for use in a trocar assembly where the trocar assembly includes a cannula assembly having a first coupling and a hollow cannula, and a trocar having a proximal handle and an elongate element with the elongate element extending through the valve assembly and hollow cannula, said valve assembly comprising:

• a valve body defining a fluid passage dimensioned to permit the trocar to extend therethrough;
• and
• a valve in fluid communication with said fluid passage, said valve configured to permit the trocar to be inserted through said valve and to automatically close said fluid passage when said trocar is removed from said valve,
• wherein said valve body includes a valve body coupling configured to removably couple said valve assembly with the first coupling of the cannula assembly to effect a fluid coupling of said fluid passage with said cannula, and said valve body coupling includes a bayonet locking mechanism on said valve body which mates with the first coupling of the cannula assembly.

A valve assembly for use in a trocar assembly where the trocar assembly includes a cannula assembly having first coupling and a hollow cannula, and a trocar having a proximal handle and an elongate element with the elongate element extending through the valve assembly and hollow cannula, the first coupling including a sliding blade latch, said valve assembly comprising:

• a valve body defining a fluid passage dimensioned to permit the trocar to extend therethrough;
• and
• a valve in fluid communication with said fluid passage, said valve configured to permit the trocar to be inserted through said valve and to automatically close said fluid passage when said trocar is removed from said valve,
• wherein said valve body includes a valve body coupling configured to removably couple said valve assembly with the first coupling of the cannula assembly to effect a fluid coupling of said fluid passage with said cannula, said valve body coupling including a circumferential groove configured to engage said sliding blade latch of said first coupling of the cannula assembly.

A valve assembly for use in a trocar assembly includes a cannula assembly having a first coupling and a hollow cannula, and a trocar having a proximal handle and an elongate element with the elongate element extending through the valve assembly and hollow cannula, said valve assembly comprising:

• a) a valve body defining a fluid passage dimensioned to permit the trocar to extend therethrough, said valve body having a distal portion;
• b) an automatic valve in fluid communication with said fluid passage, said automatic valve configured to permit the trocar to be inserted through said automatic valve and to automatically close said fluid passage when said trocar is removed from said automatic valve;
• and
• c) a fluid seal surrounding said distal portion of said valve body
• wherein said valve body includes a valve body coupling configured to removably couple said valve assembly with the first coupling of the cannula assembly to effect a fluid coupling of said fluid passage with said cannula.