摘要:
A device and method for dispensing a liquid with a gas includes an instrument having a cannula and a low-pressure tip. The low-pressure tip includes a tip housing that at least partially defines a high pressure chamber. A distal wall of the tip housing includes an aperture in fluid communication with the high pressure chamber. The low-pressure tip also includes a tube and a gas flow channel. The tube fluidly communicates liquid at a relatively low pressure from the cannula through the first aperture. The gas flow channel fluidly communicates gas from the cannula at a relatively high pressure and to the high pressure chamber for discharge from the aperture. The tube and aperture are adapted to dispense the liquid and the gas in order to create a low pressure zone distal of the tube to dispense droplets of the liquid.
摘要:
An instrument for delivery, deployment, and tamponade of a hemostat. A delivery cannula is included and has a proximal end, a distal end, and a lumen therebetween. A shaft is configured to be introduced into and move relative to the lumen. A hemostat applicator at the distal end of the shaft includes a tamponade surface. The applicator is configured to transition between a first, compact state for introduction into and movement within the lumen, and a second, expanded state as the applicator exits from the delivery cannula.
摘要:
A device and method for dispensing a liquid with a gas includes an instrument having a cannula and a low-pressure tip. The low-pressure tip includes a tip housing that at least partially defines a high pressure chamber. A distal wall of the tip housing includes an aperture in fluid communication with the high pressure chamber. The low-pressure tip also includes a tube and a gas flow channel. The tube fluidly communicates liquid at a relatively low pressure from the cannula through the first aperture. The gas flow channel fluidly communicates gas from the cannula at a relatively high pressure and to the high pressure chamber for discharge from the aperture. The tube and aperture are adapted to dispense the liquid and the gas in order to create a low pressure zone distal of the tube to dispense droplets of the liquid.
摘要:
A regulator for regulating the pressure and flow of gas traveling between a gas inlet and a gas outlet. A first pressure regulator in fluid communication with the gas inlet and configured to prevent gas flowing downstream of the first pressure regulator from exceeding a first pressure. A first line between the first pressure regulator and the gas outlet. A second pressure reducing device in fluid communication with the first line downstream of the first pressure regulator and configured to prevent gas flowing in the first line at a point downstream of the second pressure regulator from exceeding a second pressure. A control valve actuatable to an open position when gas is transmitted to a first pilot valve at or below the second pressure, the first pilot valve in fluid communication with the first line.
摘要:
A gas-assisted fluid-dispensing device configured to deliver an aerosol onto a surgical site. The fluid-dispensing device includes at least one fluid chamber configured to contain a fluid. The fluid chamber has a distal end and proximal end. A plunger extends at least partially into the fluid chamber from the proximal end. A spray nozzle tip is fluidly coupled to the distal end of the fluid chamber and is coupled to a gas supply. The tip is capable of generating aerosol with a gas from the gas supply and the fluid from the fluid chamber. A housing has an upper portion with a docking port configured to operably receive the fluid chamber. An actuating member is operably coupled to a plunger and is configured to apply a force to the plunger to discharge fluid from the fluid chamber and into the tip.
摘要:
An assembly includes a dispensing syringe device configured to receive an amount of biomaterial and to dispense the biomaterial. The dispensing syringe device includes a syringe barrel for receiving the biomaterial, a discharge outlet for dispensing the biomaterial from the syringe barrel, and a plunger received in the syringe barrel. The plunger has a plunger body and a plunger passageway extending therethrough configured to receive a stylet. The assembly further includes a cannulus device configured to be coupled with the dispensing syringe device, to receive biomaterial from the dispensing syringe device, and to dispense the biomaterial. The cannulus device includes a cannulus passageway configured to receive the biomaterial and a dispensing opening configured for dispensing the biomaterial.
摘要:
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.
摘要:
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.
摘要:
A device and method for dispensing a liquid with a gas includes an instrument having a cannula and a low-pressure tip. The low-pressure tip includes a tip housing that at least partially defines a high pressure chamber. A distal wall of the tip housing includes an aperture in fluid communication with the high pressure chamber. The low-pressure tip also includes a tube and a gas flow channel. The tube fluidly communicates liquid at a relatively low pressure from the cannula through the first aperture. The gas flow channel fluidly communicates gas from the cannula at a relatively high pressure and to the high pressure chamber for discharge from the aperture. The tube and aperture are adapted to dispense the liquid and the gas in order to create a low pressure zone distal of the tube to dispense droplets of the liquid.
摘要:
A plunger for use with a dispensing syringe to dispense a biomaterial is disclosed. The plunger includes a plunger body having a plunger head at its distal end and a plunger base at its proximal end. The plunger body defines a plunger passageway extending through the plunger body from the proximal end to the distal end. The plunger head is received within a syringe passageway of the dispensing syringe, and the plunger passageway receives a stylet.