초록 ▼

A fluid management pump system (20) for applying an irrigation/distention solution to a surgical site. The system includes a pump (22) for forcing the solution through an inflow tube (28). A portable power pack (26) attached to the pup provides the energization current for actuating the pump. The so

A fluid management pump system (20) for applying an irrigation/distention solution to a surgical site. The system includes a pump (22) for forcing the solution through an inflow tube (28). A portable power pack (26) attached to the pup provides the energization current for actuating the pump. The solution is introduced into the surgical site from the inflow tube through a first cannula (30) across which there is a relatively small pressure drop. Fluid discharged from the surgical site is drained from the site through a second cannula (32) across which there is a low pressure drop. A hand controller (38) is attached to the inflow and outflow tubes. The hand controller contains a valve (46) for regulating fluid flow through the outflow tube. A pump control circuit (232) is also disposed in the hand controller. Based on the actuation of buttons (42, 44) mounted to the hand controller, the pump control circuit regulates the energization signal applied to the pump so as to regulate the rate at which solution is discharged from the pump.

대표청구항 ▼

A fluid management pump system (20) for applying an irrigation/distention solution to a surgical site. The system includes a pump (22) for forcing the solution through an inflow tube (28). A portable power pack (26) attached to the pup provides the energization current for actuating the pump. The so

A fluid management pump system (20) for applying an irrigation/distention solution to a surgical site. The system includes a pump (22) for forcing the solution through an inflow tube (28). A portable power pack (26) attached to the pup provides the energization current for actuating the pump. The solution is introduced into the surgical site from the inflow tube through a first cannula (30) across which there is a relatively small pressure drop. Fluid discharged from the surgical site is drained from the site through a second cannula (32) across which there is a low pressure drop. A hand controller (38) is attached to the inflow and outflow tubes. The hand controller contains a valve (46) for regulating fluid flow through the outflow tube. A pump control circuit (232) is also disposed in the hand controller. Based on the actuation of buttons (42, 44) mounted to the hand controller, the pump control circuit regulates the energization signal applied to the pump so as to regulate the rate at which solution is discharged from the pump. he cleaning chamber is defined at least in part by a fitting having a port in communication with a patient's artificial airway, said step of closing the cleaning chamber with the cover member comprising removing the fitting from the artificial airway and closing off the port with the cover member. 10. The method as in claim 1, wherein the cleaning chamber is defined within a portion of a fitting that is automatically closed off by the cover member upon withdrawing the distal end portion of the catheter tube past the cover member and into the fitting portion. 11. A method of creating a turbulent flow at a distal end of a medical device tube having a distal opening and at least one side opening adjacent to the distal opening, said method comprising the steps of: disposing the distal end of the tube in a closed chamber such that the distal opening is generally opposite from a first orifice defined through the chamber; introducing a liquid into the chamber; drawing the liquid into the distal opening in the tube; and drawing a fluid medium through the first orifice defined in the chamber and into the distal opening in the tube with the liquid; conveying a portion of the fluid medium and liquid mixture out the side opening in the tube, and back into the distal opening in the tube in a flow pattern; wherein the flow pattern creates a turbulence in the liquid flowing around the distal end of the tube within the chamber. 12. The method as in claim 11, wherein the medical device tube is a catheter tube, said disposing step comprising withdrawing the distal end of the catheter tube into a distal fitting member of a catheter assembly. 13. The method as in claim 12, further comprising covering a portion of the fitting with a cover member to define the chamber, the cover member having the first orifice defined therethrough. 14. The method as in claim 12, wherein the catheter tube is a respiratory suction catheter tube, said method used to clean the distal end of the suction catheter tube. 15. The method as in claim 11, wherein said drawing a fluid medium step comprises drawing air through the first orifice. 16. The method as in claim 15, comprising creating a reduced pressure with the chamber to draw the air through the first orifice. 17. The method as in claim 16, comprising drawing a suction through the tube. 18. The method as in claim 11, further comprising drawing a fluid medium through additional orifices in the chamber oriented so as to direct the fluid medium around the circumference of the tube in the chamber. 19. The method as in claim 18, comprising drawing air through the additional orifices. 20. A catheter tube assembly comprising: a catheter tube having a distal opening and at least one side opening defined in a distal end portion of said catheter tube adjacent to said distal opening, said distal opening and said side opening being configured for and in communication such that a portion of cleaning solution or air drawn into said distal opening is transferred and exited from said side opening, said catheter tube configured to receive a suction force therethrough; a cleaning chamber, said distal end portion of said catheter tube movable into said cleaning chamber, said cleaning chamber configured to accommodate said catheter tube such that turbulent flow is present during cleaning of said catheter tube; a port in communication with said cleaning chamber for introducing the cleaning solution into said chamber; a first orifice defined through said cleaning chamber and disposed so as to be generally opposite said distal opening of said catheter tube upon withdrawing said distal end portion into said chamber, said first orifice configured for receiving air and having air transported therethrough by the suction force applied to said catheter tube; and at least one projection defined in said cleaning chamber and configured to define a distance between said first orifice and said distal opening of said catheter tube su ch that said first orifice and said distal opening of said catheter tube remain separated. 21. The catheter tube assembly as in claim 20, further comprising a fitting through which said catheter tube passes, said cleaning chamber defined at least in part by said fitting. 22. The catheter tube assembly as in claim 21, further comprising a cover member associated with said fitting, said cover member closing off said cleaning chamber upon said distal end of said catheter tube being withdrawn into said fitting, said orifice and said projection defined in said cover member. 23. The catheter tube assembly as in claim 22, wherein said fitting comprises a port that is detachable from a patient's artificial airway, said cover member configured to close off said port upon detaching said fitting to define said cleaning chamber. 24. The catheter tube assembly as in claim 23, wherein said cover member is removable from said fitting. 25. The catheter tube assembly as in claim 22, wherein said cover member is disposed within said fitting and automatically moves to closes off said cleaning chamber upon said distal end of said catheter tube being withdrawn past said cover member. 26. The catheter tube assembly as in claim 25, wherein said cover member comprises a flap member. 27. The catheter tube assembly as in claim 20, wherein said distal end of said catheter tube having a circumference, and further comprising at least one additional orifice in said cleaning chamber disposed so as to direct air generally along said circumference of said distal end of said catheter tube within said cleaning chamber. 28. The catheter tube assembly as in claim 20, wherein said catheter tube is a respiratory suction catheter tube. 29. The catheter tube assembly as in claim 28, further comprising a fitting connectable with a patient's artificial airway, said cleaning chamber defined at least in part by said fitting. 30. The catheter tube assembly as in claim 29, wherein said fitting comprises a port detachable from the artificial airway, and further comprising a cover member configured to close off said port to define said cleaning chamber, said first orifice defined in said cover member. 31. The catheter tube assembly as in claim 29, further comprising a cover member disposed within said fitting, said cover member automatically movable to a position to define and close off said cleaning chamber upon said distal end of said catheter tube being withdrawn past said cover member, said first orifice defined in said cover member. 32. The catheter tube assembly as in claim 31, wherein said cover member is a hinged flap member. 33. A catheter tube assembly comprising: a catheter tube having a distal opening and at least one side opening defined in a distal end portion of said catheter tube adjacent to said distal opening; a cleaning chamber, said distal end portion of said catheter tube movable into said cleaning chamber; a port in communication with said cleaning chamber for introducing a cleaning solution into said chamber; a first orifice defined through said cleaning chamber and disposed so as to be generally opposite said distal opening of said catheter tube upon withdrawing said distal end portion into said chamber; wherein upon applying a suction force through said catheter tube a turbulent flow pattern is established by air drawn through said first orifice and into said distal opening of said catheter tube with the cleaning solution, a potion of the air and cleaning solution mixture being conveyed out said side opening, and back into said distal opening thereby creating a turbulence in said cleaning solution within said cleaning chamber; said cleaning chamber having at least one additional orifice disposed therein so as to direct air generally along a circumference of said distal end of said catheter tube within said cleaning chamber; and a plurality of said additional orifices disposed around said first orifice. 34. A catheter tube assembly compri sing: a catheter tube having a distal opening and at least one side opening defined in a distal end portion of said catheter tube adjacent to said distal opening; a cleaning chamber, said distal end portion of said catheter tube movable into said cleaning chamber; a port in communication with said cleaning chamber for introducing a cleaning solution into said chamber; a first orifice defined through said cleaning chamber and disposed so as to be generally opposite said distal opening of said catheter tube upon withdrawing said distal end portion into said chamber; wherein upon applying a suction force through said catheter tube a turbulent flow pattern is established by air drawn through said first orifice and into said distal opening of said catheter tube with the cleaning solution, a potion of the air and cleaning solution mixture being conveyed out said side opening, and back into said distal opening thereby creating a turbulence in said cleaning solution within said cleaning chamber; said cleaning chamber having at least additional orifice disposed therein so as to direct air generally along a circumference of said distal end of said catheter tube within said cleaning chamber; a plurality of said additional orifices disposed around said first orifice; and a cover member movable to a position to close off said cleaning chamber upon said distal end of said catheter tube being withdrawn into said cleaning chamber, said first orifice and said additional orifices defined through said cover member.