Use of autologous sediment from fluid aspirates as vehicles for drug delivery
View Patent ↗A filtration syringe having at least a first and second chamber separated by a fluid permeable membrane, which may be selectively permeable to solids of a certain size, allows aspirated particle-filled fluid to be filtered within the syringe. A centrifuge tube apparatus is also provided for centrifuging a sample collected in a syringe, the apparatus comprising: a syringe comprising at one end a narrowed outlet and means for connection to a needle and at the opposing end a partially inserted syringe plunger; and a syringe holder having an interior for accepting the syringe, wherein the interior comprises at least one ledge for resting the syringe in an inverted position within the holder to prevent further insertion of the plunger during centrifugation, further wherein the syringe holder is sized for insertion in a centrifuge rotor.
1. A kit comprising a filtration syringe ( 100 ) comprising,
a syringe body ( 200 ) having a longitudinal axis (A) and at least one syringe body sidewall ( 205 ) cooperating with an axially disposed movable first plunger body ( 300 ) having a fluid filtering barrier comprised of a semi-permeable membrane ( 310 ) movable within the syringe body ( 200 ) in an axial direction to enclose a first variable chamber ( 220 ), having a first chamber volume in interruptible fluid communication with an external instrumentality (I) through an instrument aperture ( 210 );
wherein the first movable plunger body ( 300 ) has at least one first plunger body sidewall ( 305 ) enclosing a second chamber ( 320 ) having a second chamber volume, and
the first variable chamber ( 220 ) is in fluid communication with the second chamber ( 320 ) by means of the fluid filtering barrier ( 310 ) such that fluid contained within the first variable chamber ( 220 ) may transit the fluid filtering barrier ( 310 ) into the second chamber; and
an attachable mixing chamber comprising at least one mixing chamber sidewall ( 505 ) enclosing a mixing chamber volume said mixing chamber attachable to said filtration syringe at said instrument aperture ( 210 ), and in fluid communication with the first variable chamber ( 220 ) through a mixing chamber-syringe aperture ( 520 ) and in fluid communication with the external instrumentality ( 1 ) through a mixing chamber-instrument aperture ( 510 ), wherein the mixing chamber sidewall ( 505 ) has at least one laminar flow disrupting feature ( 530 ).
2. The kit according to claim 1 , wherein the instrument aperture ( 210 ) is reversibly occludable by an instrument aperture occluder ( 215 ).
3. The kit according to claim 2 , wherein the instrument aperture occluder ( 215 ) is a removable cap.
4. The kit according to claim 2 , wherein the instrument aperture occluder ( 215 ) is a valve allowing alternating bidirectional flow.
5. The kit according to claim 1 , wherein the fluid filtering barrier ( 310 ) passes solids passable through a pore size of approximately between 5 and 50 microns.
6. The kit according to claim 1 , wherein a chamber selected from the group of chambers consisting of the first variable chamber ( 220 ) and the second chamber ( 320 ) further contains a biologically active adjunct consisting of one or more of the adjuncts selected from the group of adjuncts consisting of cytokines, bone morphogenetic proteins (BMPs), pharmaceutical drugs, gene vectors or mixtures thereof.
7. The kit according to claim 1 , wherein a chamber selected from the group of chambers consisting of the first variable chamber ( 220 ) and the second chamber ( 320 ) further contains a pigment selected from the group of pigments consisting of an anthocyanin, an anthocyanidin, or a combination of an anthocyanin and an anthocyanidin.
8. The kit according to claim 1 , wherein the second chamber ( 320 ) is in interruptible fluid communication with an ambient atmosphere through an equalization aperture ( 330 ) that is reversibly occludable by an equalization aperture occluder ( 335 ).
9. The kit according to claim 8 , wherein the equalization aperture occluder ( 335 ) is a valve allowing alternating bidirectional flow.
10. The kit according to claim 8 , wherein the equalization aperture occluder ( 335 ) is a puncturable septum.
11. The kit according to claim 1 , wherein the second chamber ( 320 ) further comprises an axially disposed movable second plunger body ( 400 ) having a fluid impermeable barrier ( 410 ) reversibly movable in an axial direction within the first plunger body ( 400 ) to enclose a second variable chamber ( 340 ) having a second variable chamber volume.
12. The kit according to claim 11 , wherein the axially disposed movable second plunger body ( 400 ) may be biased to maintain a reversibly fixed position within the first plunger body ( 300 ) by means of a plunger interlock ( 440 ).
13. The kit according to claim 11 , wherein the fluid filtering barrier ( 310 ) passes solids passable through a pore size of approximately between 5 and 50 microns.
14. The kit according to claim 11 , wherein a chamber selected from the group of chambers consisting of the first variable chamber ( 220 ) and the second variable chamber ( 340 ) further contains a biologically active adjunct consisting of one or more of the adjuncts selected from the group of adjuncts consisting of cytokines, bone morphogenetic proteins (BMPs), pharmaceutical drugs, gene vectors or mixtures thereof.
15. The kit according to claim 11 , wherein a chamber selected from the group of chambers consisting of the first variable chamber ( 220 ) and the second variable chamber ( 340 ) further contains a pigment selected from the group of pigments consisting of an anthocyanin, an anthocyanidin, or a combination of an anthocyanin and an anthocyanidin.
16. A kit comprising a filtration syringe ( 100 ) comprising,
a syringe body ( 200 ) having a longitudinal axis (A) and at least one syringe body sidewall ( 205 ) cooperating with an axially disposed movable first plunger body ( 300 ) having a fluid filtering barrier comprised of a semi-permeable membrane ( 310 ) movable within the syringe body ( 200 ) in an axial direction to enclose a first variable chamber ( 220 ), having a first chamber volume in interruptible fluid communication with an external instrumentality (I) through an instrument aperture ( 210 );
wherein the first movable plunger body ( 300 ) has at least one first plunger body sidewall ( 305 ) enclosing a second chamber ( 320 ) having a second chamber volume, comprises an axially disposed movable second plunger body ( 400 ) having a fluid impermeable barrier ( 410 ) reversibly movable in an axial direction within the first plunger body ( 400 ) to enclose a second variable chamber ( 340 ) having a second variable chamber volume, and
the first variable chamber ( 220 ) is in fluid communication with the second chamber ( 320 ) by means of the fluid filtering barrier ( 310 ) such that fluid contained within the first variable chamber ( 220 ) may transit the fluid filtering barrier ( 310 ) into the second chamber; and
an attachable mixing chamber comprising at least one mixing chamber sidewall ( 505 ) enclosing a mixing chamber volume said mixing chamber attachable to said filtration syringe at said instrument aperture ( 210 ), and in fluid communication with the first variable chamber ( 220 ) through a mixing chamber-syringe aperture ( 520 ) and in fluid communication with the external instrumentality ( 1 ) through a mixing chamber-instrument aperture ( 510 ), wherein the mixing chamber sidewall ( 505 ) has at least one laminar flow disrupting feature ( 530 ) ( 320 ).
17. A kit comprising a filtration syringe ( 100 ) comprising,
a syringe body ( 200 ) having a longitudinal axis (A) and at least one syringe body sidewall ( 205 ) cooperating with an axially disposed movable first plunger body ( 300 ) having a fluid filtering barrier comprised of a semi-permeable membrane ( 310 ) movable within the syringe body ( 200 ) in an axial direction to enclose a first variable chamber ( 220 ), having a first chamber volume in interruptible fluid communication with an external instrumentality (I) through an instrument aperture ( 210 );
wherein the first movable plunger body ( 300 ) has at least one first plunger body sidewall ( 305 ) enclosing a second chamber ( 320 ) having a second chamber volume,
the first variable chamber ( 220 ) is in fluid communication with the second chamber ( 320 ) by means of the fluid filtering barrier ( 310 ) such that fluid contained within the first variable chamber ( 220 ) may transit the fluid filtering barrier ( 310 ) into the second chamber ( 320 ), and
the second chamber ( 320 ) is in interruptible fluid communication with an ambient atmosphere through an equalization aperture ( 330 ) that is reversibly occludable by an equalization aperture occluder; and
an attachable mixing chamber comprising at least one mixing chamber sidewall ( 505 ) enclosing a mixing chamber volume said mixing chamber attachable to said filtration syringe at said instrument aperture ( 210 ), and in fluid communication with the first variable chamber ( 220 ) through a mixing chamber-syringe aperture ( 520 ) and in fluid communication with the external instrumentality ( 1 ) through a mixing chamber-instrument aperture ( 510 ), wherein the mixing chamber sidewall ( 505 ) has at least one laminar flow disrupting feature ( 530 ) ( 335 ).