Instrument for applying therapeutic cells, with proximal portion for processing therapeutic cells
A tissue harvesting and processing apparatus comprises a body and a distally extending needle. The needle includes an aperture configured to receive tissue. A tissue cutting member is movable relative to the needle to sever a specimen from tissue protruding through the aperture. A tissue processor is operable to mince tissue severed by the tissue cutting member. The minced tissue may be mixed with a medical fluid component contained in a reservoir. The medical fluid mixture may be expelled through an applier tip coupled with the body. The tissue processor may comprise a mincing die such that tissue specimens are minced upon being extruded through the mincing die. The tissue processor may comprise a blade that cooperates with a sliding press. The tissue processor may comprise auger blade sections that cooperate with inwardly extending pins. A mixing piston may mix the minced tissue with the medical fluid component.
1. A tissue harvesting and processing apparatus, the apparatus comprising:
(a) a body;
(b) a needle extending distally from the body, wherein the needle defines a longitudinal axis, wherein the needle further defines an opening configured to receive prolapsed tissue;
(c) a tissue cutting member, wherein the tissue cutting member is movable relative to the needle to sever a tissue specimen from tissue protruding through the opening of the needle;
(d) a tissue processor in communication with the needle, wherein the tissue processor is operable to mince a tissue specimen severed by the tissue cutting member;
(e) a mixing chamber configured to contain a medical fluid component, wherein the mixing chamber is further configured to receive tissue minced by the tissue processor; and
(f) a piston mixer, wherein the piston mixer further comprises a rotatable mixing blade, wherein the mixing blade is operable to mix a medical fluid component and tissue minced by the tissue processor in the mixing chamber, and wherein the piston mixer is movable relative to the mixing chamber to expel a mixture of a medical fluid component and tissue minced by the tissue processor from the mixing chamber.
2. The apparatus of claim 1 , wherein the tissue processor comprises a reservoir, wherein the reservoir is configured to contain a medical fluid component, wherein the reservoir is further configured to receive tissue severed by the tissue cutting member.
3. The apparatus of claim 2 , wherein the reservoir is located in the body.
4. The apparatus of claim 1 , wherein the tissue processor comprises a mincing die configured to mince a tissue specimen as the tissue specimen is extruded through the mincing die.
5. The apparatus of claim 4 , wherein the body includes a port in fluid communication with the needle, wherein the mincing die is positionable between the port and a tissue processing chamber located in the body.
6. The apparatus of claim 4 , further comprising a piston slidably disposed in the body, wherein the piston is translatable relative to the body to urge a tissue specimen and a medical fluid component through the mincing die and toward the needle.
7. The apparatus of claim 1 , wherein the tissue cutting member comprises a tissue press, wherein the tissue press is operable to press on a tissue specimen communicated proximally through the needle.
8. The apparatus of claim 7 , wherein the tissue cutting member further comprises one or more blades, wherein the tissue press is operable to urge a tissue specimen against the one or more blades to mince the tissue specimen with the one or more blades.
9. The apparatus of claim 8 , wherein the tissue press is further translatable within the body to repeatedly urge the tissue specimen against the one or more blades to further mince the tissue specimen.
10. The apparatus of claim 1 , wherein the tissue processor comprises a plurality of auger blade sections and a plurality of protrusions extending inwardly in the needle, wherein the auger blade sections are separated by gaps configured to accommodate the plurality of protrusions.
11. The apparatus of claim 1 , wherein the tissue cutting member comprises at least one helical blade.
12. The apparatus of claim 1 , wherein the tissue cutting member comprises a tubular cutter having a sharp distal edge.
13. The apparatus of claim 1 , wherein the needle and the tissue cutting member together define a needle adapter, wherein the body comprises a port configured to removably couple with the needle adapter.
14. The apparatus of claim 13 , further comprising an applier adapter configured to dispense a medical fluid mixture, wherein the port of the body is further configured to couple with the applier adapter in place of the needle adapter.
15. A tissue harvesting and processing apparatus, the apparatus comprising:
(a) a body;
(b) a needle extending distally from the body, wherein the needle defines a longitudinal axis, wherein the needle further defines an opening configured to receive prolapsed tissue;
(c) a tissue cutting member, wherein the tissue cutting member is movable relative to the needle to sever a tissue specimen from tissue protruding through the opening of the needle;
(d) a tissue processor in communication with the needle, wherein the tissue processor is operable to mince a tissue specimen severed by the tissue cutting member, and wherein the tissue processor comprises:
(i) a plurality of auger blade sections,
(ii) a plurality of pins projecting inwardly in the needle, wherein the auger blade sections and the pins are configured to cooperatingly mince tissue severed by the tissue cutting member, and
(ii) a mixing piston having a mixing blade; and
(e) a reservoir in fluid communication with the needle, wherein the reservoir is configured to hold a medical fluid component, wherein the tissue processor is further configured to mix a medical fluid component from the reservoir with tissue minced by the tissue processor.