Pressure wedge irrigation pump
First Claim
1. A surgical irrigation pump arrangement comprising:
- a cabinet, said cabinet having an opening;
first and second plates disposed in said cabinet, said first plate being movable towards and away from said second plate so as to define a varying volume bag well between said first and second plates, said varying volume bag well being accessible through said opening in said cabinet;
a drive assembly disposed in said cabinet and attached to said first plate for moving said first plate;
a user interface including a bag-size control configured for actuation by a user to allow selection of a first fluid bag size or a second fluid bag size of a different volume than a volume of the first fluid bag size;
a control unit in communication with said bag-size control and connected to said drive assembly, said control unit actuating said drive assembly to move said first plate to a first position wherein said first plate is spaced from said second plate a first distance sufficient to accommodate the first fluid bag size in said varying volume bag well when said bag-size control indicates a user selection of the first fluid bag size, said control unit actuating said drive assembly to move said first plate to a second position wherein said first plate is spaced from said second plate a second distance different from the first distance and sufficient to accommodate the second fluid bag size in said varying volume bag well when said bag-size control indicates a user selection of the second fluid bag size, said control unit actuating said drive assembly to move said first plate towards said second plate to compress a fluid bag disposed in said varying volume bag well, said control unit preventing operation of said drive assembly when the first fluid bag size is selected and said first plate is in said first position and a user attempts to place a fluid bag corresponding to the second fluid bag size in said varying volume bag well, and said control unit preventing operation of said drive assembly when the second fluid bag size is selected and said first plate is in said second position and a fluid bag corresponding to the first fluid bag size is located in said varying volume bag well.
1 Assignment
0 Petitions
Accused Products
Abstract
A pump for rapidly discharging irrigation fluid to a surgical site. The pump includes a cabinet with an opening. Inside the pump there is a static plate and a dynamic plate that extends towards/retracts from the static plate. The space between the plates is a bag well in which a bag containing irrigation fluid can be inserted/replaced through the cabinet opening. A lid covers the opening. A sensor monitors the open/closed state of the lid. A drive motor actuates the dynamic plate. A control unit regulates the actuation of the motor. Only when the lid sensor determines that the lid is closed does the control unit actuate the motor. The dynamic plate can be placed in various open positions relative to the static plate so bags containing different volumes of fluid can be used with the pump.
9 Citations
29 Claims
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1. A surgical irrigation pump arrangement comprising:
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a cabinet, said cabinet having an opening; first and second plates disposed in said cabinet, said first plate being movable towards and away from said second plate so as to define a varying volume bag well between said first and second plates, said varying volume bag well being accessible through said opening in said cabinet; a drive assembly disposed in said cabinet and attached to said first plate for moving said first plate; a user interface including a bag-size control configured for actuation by a user to allow selection of a first fluid bag size or a second fluid bag size of a different volume than a volume of the first fluid bag size; a control unit in communication with said bag-size control and connected to said drive assembly, said control unit actuating said drive assembly to move said first plate to a first position wherein said first plate is spaced from said second plate a first distance sufficient to accommodate the first fluid bag size in said varying volume bag well when said bag-size control indicates a user selection of the first fluid bag size, said control unit actuating said drive assembly to move said first plate to a second position wherein said first plate is spaced from said second plate a second distance different from the first distance and sufficient to accommodate the second fluid bag size in said varying volume bag well when said bag-size control indicates a user selection of the second fluid bag size, said control unit actuating said drive assembly to move said first plate towards said second plate to compress a fluid bag disposed in said varying volume bag well, said control unit preventing operation of said drive assembly when the first fluid bag size is selected and said first plate is in said first position and a user attempts to place a fluid bag corresponding to the second fluid bag size in said varying volume bag well, and said control unit preventing operation of said drive assembly when the second fluid bag size is selected and said first plate is in said second position and a fluid bag corresponding to the first fluid bag size is located in said varying volume bag well. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A surgical pump, said pump including:
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a cabinet, said cabinet having an opening; a first plate and a second plate disposed in said cabinet, said first plate and said second plate being positioned so as to define a bag well in said cabinet between said first plate and said second plate, said bag well being accessible through said opening, said first plate being displaceable towards and away from said second plate into; a first open position wherein said first plate and said second plate are spaced from one another a distance sufficient to accommodate a first fluid bag containing a first volume of fluid in said bag well; and a second open position wherein said first plate and said second plate are spaced from one another a distance sufficient to accommodate a second fluid bag containing a second volume of fluid larger than the first volume of fluid in said bag well; a bag presence sensor disposed in said cabinet for monitoring the presence/absence of a fluid bag in said bag well and that generates a signal representative of the presence/absence of a fluid bag in said bag well, said bag presence sensor being positioned so that when said first plate is in the second open position and a first fluid bag is in said bag well, said bag presence sensor is unable to detect the presence of the first fluid bag; a drive assembly disposed in said cabinet and attached to said first plate for displacing said first plate towards and retracting said first plate away from said second plate; and a control unit connected to said bag presence sensor for receiving the signal, and connected to said drive assembly for controlling actuation of said drive assembly, said control unit regulating actuation of said drive assembly based on whether the signal from said bag presence sensor indicates the presence of a fluid bag in said bag well, said control unit preventing actuation of said drive assembly and operation of said pump when the signal from said bag presence sensor indicates that no fluid bag is present in said bag well. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A surgical pump comprising:
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a cabinet; a first plate and a second plate disposed in said cabinet, said first plate and said second plate defining a bag well therebetween; a drive assembly connected to said first plate for effecting relative movement between said first plate and said second plate to increase or reduce a volume of said bag well; a control unit connected to said drive assembly and including a control circuit configured to actuate said drive assembly to position said first plate relative to said second plate in; a first position defining a first volume of said bag well wherein a first fluid bag containing a first volume of fluid can be fully received in said bag well; and a second position defining a second volume of said bag well wherein said first fluid bag or a second fluid bag containing a second volume of fluid greater than the first volume of fluid and exceeding said first volume of said bag well can be fully received in said bag well; and a bag presence sensor in communication with said control unit and located in a position in said bag well for detecting the presence of a fluid bag in said bag well and sending a bag presence signal to said control unit, said bag presence sensor being located in a position in said bag well so as to be incapable of detecting the first fluid bag in said bag well when said first plate is in the second position such that said bag presence sensor does not send a bag presence signal to said control unit and said control unit prevents operation of said pump. - View Dependent Claims (26, 27, 28, 29)
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Specification