Tissue refining device
View Patent ↗A device for use in a system or method of collecting and processing aspirated tissue received from a harvesting device is provided by a canister body having a vacuum port and an evacuation port operable to be placed in communication with a vacuum source, a tissue harvesting port for directing tissue into the canister body received from the harvesting device under suction, and a separator element dividing the canister body into an upper vacuum chamber in communication with the vacuum port and the tissue harvesting port and a lower vacuum chamber in communication with the evacuation port, the separator element including a plurality of apertures enabling fluid to pass between the chambers while restricting tissue from doing the same and a depression with a channel leading to a tissue retrieval port to facilitate processed tissue collection.
1. A device for collecting and refining tissue received from a harvesting device under suction from a vacuum source, the apparatus comprising:
a canister body including a vacuum port and an evacuation port operable to be placed in communication with the vacuum source, a tissue harvesting port operable to be placed in communication with the harvesting device and to direct a quantity of tissue retrieved by the harvesting device into the canister body when suction is applied to the vacuum port by the vacuum source, and a tissue retrieval port;
a separator element dividing the canister body into an upper vacuum chamber in communication with the vacuum port and the tissue harvesting port and a lower vacuum chamber in communication with the evacuation port, the separator element including a plurality of apertures projecting through the separator element and a depression with a channel in communication with the tissue retrieval port;
the canister body includes a removable top covering having the vacuum port, the tissue harvesting port, and the evacuation port, and a base including the tissue retrieval port; and
the evacuation port includes an elongated tube projecting into the canister body from the covering and having a lower end extending through the separator element and disposed within the lower vacuum chamber.
2. The device as set forth in claim 1 wherein:
the separator element includes a perforated funnel body secured within the canister body with the channel being formed by a spout projecting from the lowermost region of the depression in the funnel body and terminating in a lower end in communication with the tissue retrieval port.
3. The device as set forth in claim 1 further comprising:
a vacuum manifold having a free end operable to be coupled with the vacuum source, a first branch in communication with the vacuum port, and a second branch in communication with the evacuation port and having an actuator constructed to selectively isolate the evacuation port from the vacuum source when the manifold is coupled thereto.
4. The device as set forth in claim 1 wherein:
the separator element includes an upper surface with an outer rim positioned within the canister body at a fixed height above a base section of the canister body.
5. The device as set forth in claim 4 wherein:
the evacuation port includes an opening disposed beneath the outer rim of the separator element and within the lower vacuum chamber.
6. The device as set forth in claim 1 further including:
a syringe in communication with the tissue retrieval port and operable to withdraw a selected quantity of tissue settled onto an upper surface of the separator element through the tissue retrieval port.
7. The device as set forth in claim 1 wherein:
the canister body is at least partially filled with a fluid bath with an uppermost fluid line above a top surface of the separator element;
the evacuation port includes an opening at least initially in communication with the fluid bath and constructed to evacuate fluid out of the canister body from the lower vacuum chamber as suction is applied by the vacuum source coupled thereto until the uppermost fluid line is disposed beneath a lowermost edge of the evacuation port opening; and
the vacuum port includes an opening disposed above the uppermost fluid line.
8. The device as set forth in claim 1 further comprising:
a waste canister placed in series with the canister body and including a first port in communication with the vacuum source and a second port in communication with the vacuum port of the canister body.
9. The device as set forth in claim 1 further including:
an overflow valve disposed beneath the vacuum port within the upper vacuum chamber, the overflow valve being responsive to a rising fluid level within the upper vacuum chamber to seal off the vacuum port.
10. The device as set forth in claim 1 further comprising:
a first length of tubing having a first end coupled to the vacuum port and having a free distal end;
a second length of tubing having a first end coupled to the evacuation port and having a free distal end;
a Y-connector having a first branch coupled to the free distal end of the first length of tubing and a second branch coupled to the free distal end of the second length of tubing, and a main line operable to be coupled to the vacuum source to place both the vacuum port and evacuation port in communication with a common vacuum source; and
a drain valve inline with the second length of tubing and being selectively operable to isolate the evacuation port from the vacuum source when coupled thereto.
11. The device as set forth in claim 1 further including:
a holding tray operable to suspend the canister body in an upright position.
12. A system for collecting and refining tissue to be used with a harvesting device and a vacuum source, the system comprising:
a canister body including a vacuum port, an evacuation port, a tissue harvesting port operable to be placed in communication with the harvesting device and to direct a quantity of tissue retrieved by the harvesting device into the canister body when suction is applied to the vacuum port by the vacuum source, a tissue retrieval port, and a separator element dividing the canister body into an upper vacuum chamber in communication with the vacuum port and the tissue harvesting port and a lower vacuum chamber in communication with the evacuation port, the separator element including a plurality of apertures projecting through the separator element and a depression with a channel in communication with the tissue retrieval port;
the canister body includes a removable top covering having the vacuum port, the tissue harvesting port, and the evacuation port, and a base including the tissue retrieval port;
the evacuation port includes an elongated tube projecting into the canister body from the covering and having a lower end extending through the separator element and disposed within the lower vacuum chamber;
a vacuum source;
a manifold having a first branch in communication with the vacuum port, a second branch in communication with the evacuation port, and a free common end;
an evacuation port isolator in communication with the evacuation port and selectively operable to isolate the vacuum source from the evacuation port; and
a waste canister having a first port in communication with the vacuum source and a second port in communication with the free common end of the manifold.
13. The system as set forth in claim 12 wherein:
the evacuation port includes a lowermost opening to be disposed beneath an uppermost fluid line of the fluid bath introduced into the canister body with evacuation port being operable to cease draining fluid out of the lower vacuum chamber when the uppermost fluid line falls below the lowermost opening.
14. The system as set forth in claim 12 further comprising:
a syringe in communication with the tissue retrieval port and operable to capture a quantity of tissue from an upper surface of the separator element.