Irrigation system with tubing cassette
First Claim
1. A tubing set for use in an irrigation system of the type comprising a housing having a cassette-receiving passageway, a race mounted on one side of the passageway, a peristaltic pump head mounted on the opposing side of the passageway, and means for moving the race and pump head relative to one another between a pumping position and a release position, wherein in the pumping position the pump head and the race are positioned in close proximity and further wherein in the release position the pump head and the race are positioned distally from one another, the tubing set comprising:
- an inflow line for providing irrigation fluid to the internal body irrigation site;
a cassette having a generally arcuate shape, the cassette retaining a portion of the inflow line and including an opening for receiving the pump head and the race on opposing sides of the inflow line, a segment of the portion of the inflow line being exposed within the opening such that the pump head and the race at least partially compress the segment when in the pumping position.
4 Assignments
0 Petitions
Accused Products
Abstract
The present invention provides a tubing set in cassette form and an irrigation system employing the cassette and tubing set for use in endoscopic procedures. The tubing set includes a generally arcuate cassette which is inserted into the pump housing to effect a change in tubing sets between procedures. A valve assembly and flattened tubing segment are preferably used to provide pressure control/relief in the tubing set/irrigation system. Also provided in combination with the preferred cassette is a fitting for coupling a pressure monitoring line with pressure monitoring equipment in the irrigation system.
239 Citations
49 Claims
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1. A tubing set for use in an irrigation system of the type comprising a housing having a cassette-receiving passageway, a race mounted on one side of the passageway, a peristaltic pump head mounted on the opposing side of the passageway, and means for moving the race and pump head relative to one another between a pumping position and a release position, wherein in the pumping position the pump head and the race are positioned in close proximity and further wherein in the release position the pump head and the race are positioned distally from one another, the tubing set comprising:
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an inflow line for providing irrigation fluid to the internal body irrigation site; a cassette having a generally arcuate shape, the cassette retaining a portion of the inflow line and including an opening for receiving the pump head and the race on opposing sides of the inflow line, a segment of the portion of the inflow line being exposed within the opening such that the pump head and the race at least partially compress the segment when in the pumping position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A tubing set for use in an irrigation system of the type comprising a housing having a cassette-receiving passageway, a race mounted on one side of the passageway, a peristaltic pump head mounted on the opposing side of the passageway, and means for moving the race and pump head relative to one another between a pumping position and a release position, wherein in the pumping position the pump head and the race are positioned in close proximity and further wherein in the release position the pump head and the race are positioned distally from one another, the tubing set comprising:
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an inflow line for providing irrigation fluid to the internal body irrigation site; a cassette having a generally arcuate shape, the cassette retaining a portion of the inflow line, a segment of the portion of the inflow line being exposed such that the pump head and the race at least partially compress the segment when in the pumping position; and an outflow line for draining irrigation fluid from the irrigation site, a portion of the outflow line being retained by the cassette, wherein the portion of the outflow line comprises an exposed segment adapted to be operated on by a valve located proximate the cassette receiving passageway. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A tubing set for use in an irrigation system for providing irrigation fluid to an internal body irrigation site, the system comprising a housing having a cassette-receiving passageway;
- a valve for controlling pressure at the irrigation site, the valve being positioned proximate the cassette receiving passageway;
a port on the housing proximate the passageway, the port in communication a pressure monitor for monitoring pressure at the irrigation site;
a race mounted on one side of the passageway;
a peristaltic pump head mounted on the opposing side of the passageway; and
means for moving the race and pump head relative to one another between a pumping position and a release position, wherein in the pumping position the pump head and the race are positioned in close proximity and further wherein in the release position the pump head and the race are positioned distally from one another, the tubing set comprising;an inflow line for providing irrigation fluid to the irrigation site; a cassette retaining a portion of the inflow line, a segment of the portion of the inflow line being exposed such that the pump head and the race at least partially compress the segment when in the pumping position, the cassette having a generally arcuate shape such that the portion of the inflow line retained by the cassette follows a generally arcuate line; an outflow line for carrying irrigation fluid away from the irrigation site, wherein a portion of the outflow line is retained by the cassette, and further wherein the portion of the outflow line comprises an exposed segment adapted to be operated on by the valve located proximate the cassette-receiving passageway and yet further wherein the exposed segment of the outflow line has a generally flattened shape including a pair of interior corners at opposing ends of a cross-section of the segment; a pressure sensing line, a portion of which is retained by the cassette, the pressure sensing line terminating in a fitting retained by the cassette, wherein the pressure sensing line conducts a signal representative of the pressure within the irrigation site to the fitting, and further wherein the fitting is capable of movement axially and being biased in at least one direction, and yet further wherein the fitting forms a face seal with the pressure sensing port on the housing.
- a valve for controlling pressure at the irrigation site, the valve being positioned proximate the cassette receiving passageway;
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19. An irrigation system for use in endoscopic procedures for maintaining and controlling flow of irrigation fluid to an internal body irrigation site, the system comprising:
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a housing having a cassette-receiving passageway; a peristaltic pump head attached to the housing on one side of the passageway; a race attached to the housing on an opposite side of the passageway from the pump head; means for moving the pump head and race relative to each other between a pumping position and a release position; a removable tubing set comprising; an inflow line for providing irrigation fluid to the internal body irrigation site; a cassette having a generally arcuate shape, the cassette retaining a portion of the inflow line, a segment of the portion of the inflow line being exposed such that the pump head and the race at least partially compress the segment when in the pumping position. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. An irrigation system for use in endoscopic procedures for maintaining and controlling flow of irrigation fluid to an internal body irrigation site, the system comprising:
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a housing having a cassette-receiving passageway; a peristaltic pump head mounted on one side of the passageway; a race mounted on an opposite side of the passageway from the pump head; means for moving the pump head and race relative to each other between a pumping position and a release position; a removable tubing set comprising; an inflow line for providing irrigation fluid to the internal body irrigation site; a cassette having a generally arcuate shape, the cassette retaining a portion of the inflow line, a segment of the portion of the inflow line being exposed such that the pump head and the race at least partially compress the segment when in the pumping position; a valve located proximate the cassette-receiving passageway; and an outflow line for draining irrigation fluid from the irrigation site, a portion of the outflow line being retained by the cassette, wherein the portion of the outflow line comprises an exposed segment adapted to be compressed by the valve. - View Dependent Claims (37, 38, 39, 40)
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41. An irrigation system for use in endoscopic procedures for maintaining and controlling flow of irrigation fluid to an internal body irrigation site, the system comprising:
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a housing having a cassette-receiving passageway; a peristaltic pump head mounted on one side of the passageway; a race mounted on an opposite side of the passageway from the pump head, the race being resiliently mounted for limited movement towards and away from the pump head; means for moving the pump head and race relative to each other between a pumping position and a release position; an inflow line for providing irrigation fluid to the irrigation site; an outflow line for carrying irrigation fluid away from the irrigation site; a valve located proximate the cassette-receiving passageway, the valve comprising a relief pad and an anvil, the outflow line being located between the relief pad and the anvil, the anvil mounted for movement towards the relief pad to compress the outflow line; a cassette having a generally arcuate shape, the cassette retaining a portion of each of the inflow and outflow lines, wherein a segment of the portion of the inflow line is exposed such that the pump head and the race at least partially compress the segment when in the pumping position, further wherein the portion of the outflow line comprises an exposed segment located between the relief pad and the anvil of the valve, the exposed segment of the outflow line having a generally flattened shape including a pair of interior corners at opposing ends of a cross-section of the segment; a pressure sensing line, a portion of which is retained by the cassette, the pressure sensing line terminating in a fitting retained by the cassette, wherein the pressure sensing line conducts a signal representative of the pressure within the irrigation site to the fitting, and further wherein the fitting is capable of movement axially and being biased in at least one direction, and yet further wherein the fitting forms a face seal with the pressure sensing port on the housing.
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42. An irrigation system for use in endoscopic procedures for maintaining and controlling flow of irrigation fluid to an internal body irrigation site, the system comprising:
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an irrigation pump operating on an inflow line supplying irrigation fluid to the irrigation site; an outflow line carrying irrigation fluid away from the irrigation site; a valve compressing a segment of the outflow line to restrict outflow from the irrigation site through the outflow line; the segment of the outflow line compressed by the valve further comprising a generally flattened shape including a pair of interior corners at opposing ends of a cross-section of the segment. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49)
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Specification