초록 ▼

A device and method for removing gas from a mixture of biomaterials includes a vacuum pump movably positioned within a cavity of a syringe at least partially defining a vacuum chamber. The vacuum pump has a pump body with proximal and distal portions, a stopper connected to the distal portion, and a

A device and method for removing gas from a mixture of biomaterials includes a vacuum pump movably positioned within a cavity of a syringe at least partially defining a vacuum chamber. The vacuum pump has a pump body with proximal and distal portions, a stopper connected to the distal portion, and a flow channel. The stopper includes an inlet, and the pump body includes a port. The flow channel extends from the inlet to the port and is in fluid communication with the vacuum chamber. A first valve is positioned within the flow channel between the inlet and the port. The first valve is operable to open and close the flow channel for selectively connecting a vacuum to the vacuum chamber such that gas is withdrawn from mixture of biomaterials within the vacuum chamber.

대표청구항 ▼

1. A device for removing a gas from a mixture of biomaterials, comprising; a syringe having a syringe body and a cavity therein, the syringe body having a proximal opening and a distal opening; anda vacuum pump movably positioned within the cavity, the vacuum pump and the syringe body at least parti

1. A device for removing a gas from a mixture of biomaterials, comprising; a syringe having a syringe body and a cavity therein, the syringe body having a proximal opening and a distal opening; anda vacuum pump movably positioned within the cavity, the vacuum pump and the syringe body at least partially defining a vacuum chamber, the vacuum pump comprising: a pump body having a proximal portion and a distal portion, the proximal portion having a port configured to operatively engage a vacuum device for generating a vacuum therein;a stopper having an inlet, the stopper operatively connected to the distal portion of the pump body;a flow channel extending from the inlet to the port such that the stopper, the pump body, and the vacuum chamber are in fluid communication, the flow channel adapted to fluidly connect the vacuum and the vacuum chamber; anda first valve positioned between the inlet and the port within the flow channel, the first valve operable to open and close the flow channel for selectively connecting the vacuum to the vacuum chamber such that the vacuum within the vacuum device withdraws the gas from the mixture of biomaterials within the vacuum chamber;wherein the vacuum pump is received by the proximal opening and movable toward the distal opening for discharging the mixture of biomaterials from the distal opening. 2. The device of claim 1 wherein the syringe body and the pump body of the vacuum pump define a gap, the gap extending to the proximal opening and being in fluid communication with an ambient environment. 3. The device of claim 2 comprising a second valve fluidly connected between the flow channel and the gap, the second valve positioned in the flow channel between the first valve and the port for venting a pressurized gas from the flow channel. 4. The device of claim 1 wherein at least a portion of the syringe body has a plurality of grooves, the plurality of grooves further defining the vacuum chamber and adapted to collect and direct the gas from the mixture of biomaterials toward the flow channel under the influence of the vacuum. 5. The device of claim 1 further comprising an end cap, the end cap removably attached to the distal opening of the syringe for sealing the distal opening from an ambient environment. 6. The device of claim 5 wherein the end cap has a coupling for fluidly connecting to a mixture source. 7. A vacuum pump for use within a syringe, the syringe at least partially defining a vacuum chamber, the vacuum chamber containing a mixture of biomaterials having a gas therein, the vacuum pump comprising; a pump body having a proximal portion and a distal portion, the proximal portion having a port configured to operatively engage a vacuum device for generating a vacuum therein;a stopper having an inlet, the stopper operatively connected to the distal portion of the pump body;a flow channel extending from the inlet to the port such that the stopper, the pump body, and the vacuum chamber are in fluid communication, the flow channel adapted to fluidly connect the vacuum and the vacuum chamber; anda first valve positioned between the inlet and the port within the flow channel, the first valve operable to open and close the flow channel for selectively connecting the vacuum to the vacuum chamber, such that the vacuum within the vacuum device withdraws the gas from the mixture of biomaterials within the vacuum chamber. 8. The vacuum pump of claim 7 further comprising a second valve fluidly connected between the flow channel and an ambient environment, the second valve positioned in the flow channel between the first valve and the port. 9. The vacuum pump of claim 7 wherein the flow channel further includes a bore and the vacuum device is a vacuum plunger movably positioned within the bore of the pump body. 10. The vacuum pump of claim 9 further comprising the vacuum plunger having a circumferential seal for sealing against the bore within the pump body, the vacuum plunger being movable through a vacuum stroke and a pressure stroke wherein moving the vacuum plunger through the vacuum stroke generates the vacuum for withdrawing the gas from the vacuum chamber and moving the vacuum plunger through the pressure stroke pressurizes gas from the bore and to an ambient environment. 11. The vacuum pump of claim 10 further comprising a second valve fluidly connected between the flow channel and the ambient environment, the second valve positioned in the flow channel between the first valve and the port, wherein the first and second valves are check valves, the first valve opening and the second valve closing under the influence of the vacuum within the flow channel, and the first valve closing and the second valve opening under the influence of a pressurized gas within the flow channel. 12. The vacuum pump of claim 7 wherein the stopper further comprises a seal, the seal positioned about the stopper for sealing against the syringe. 13. The vacuum pump of claim 7 further comprising a valve lock, the valve lock positioned adjacent to the first valve and being movable relative to the first valve for actuating the first valve to maintain the open flow channel. 14. The vacuum pump of claim 7 wherein the stopper further comprises a screen, the screen positioned over the inlet for preventing the mixture of biomaterials exposed to the vacuum from entering the flow channel. 15. The vacuum pump of claim 7 further comprising a removable plunger cap attached to the proximal portion of the pump body, the plunger cap being removable for fluid connection to a vacuum source.