| CPC C12M 45/02 (2013.01) [A61M 1/3406 (2014.02); A61M 1/79 (2021.05); A61M 1/892 (2021.05); A61M 2202/09 (2013.01)] | 14 Claims |
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1. A device for reducing a size of a biological tissue, the device comprising:
a front cover including an inlet port through which the biological tissue flows;
a rear cover coupled to the front cover, and including an outlet port through which the biological tissue flows;
a passage connecting the inlet port and the outlet port between the front cover and the rear cover; and
a screen configured to reduce the size of the biological tissue, wherein the screen is accepted between the front cover and the rear cover such that the biological tissue flows inside the front cover via the inlet port, passes the screen along the passage, and then flows from inside to outside the rear cover via the outlet port, wherein the screen includes:
a plate having a first and second sides; and
a through hole formed through the plate, the through hole being defined by a plurality of edges penetrating the first and second sides; and
a protrusion that protrudes toward a central portion of the through hole from the plurality of edges in a plane which is the same as a plane of the plate and is parallel to the plate,
wherein while the biological tissue passes through the through hole, the plurality of edges of the through hole and the protrusion that the plurality of edges define are configured to scratch or tear the biological tissue by applying a pressure on the biological tissue such that a size of the biological tissue decreases.
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7. A device for reducing a size of a biological tissue, the device comprising:
a first screen comprising a first plate, a first set of through holes defined by a plurality of first edges of the first plate and penetrating a front and a rear of the first plate, and a first set of protrusions protruding toward a central portion of each of the first set of through holes in a plane which is the same as a plane of the first plate and being parallel to the first plate; and
a second screen comprising a second plate laminated to the first plate, a second set of through holes defined by a plurality of second edges of the second plate and penetrating a front and a rear of the second plate, and a set of protrusion protrusions that protrude toward a central portion of each of the second set of through holes in a plane which is the same as a plane of the second plate and being parallel to the second plate,
wherein each through hole of the first set of through hole holes is axially aligned with one of the through holes of the second set of through holes and is larger in size than the one of the second through holes of the second set of through holes with which it is aligned.
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9. A device for reducing a size of a biological tissue, the device comprising:
a plate having first and second sides; and
a through hole formed through the plate, the through hole being defined by a plurality of edges penetrating the first and second sides and comprising a first group of protrusions and a second group of protrusions, wherein the first group of protrusions protrude from the first side of the plate while forming an angle with respect to the plate, and the second group of protrusions protrude from the second side of the plate while forming an angle with respect to the plate,
wherein while the biological tissue passes through the through hole, the plurality of edges and the first group of protrusions and second group of protrusions that the plurality of edges define are configured to scratch or tear the biological tissue by applying a pressure on the biological tissue.
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