Irrigation system with tubing cassette
First Claim
1. 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:
- a tubing set comprising;
an inflow line for providing irrigation fluid to the internal body irrigation site; and
a cassette holding a held portion of the inflow line and having opposed through openings exposing an exposed segment of the held portion of the inflow line; and
an irrigation pump comprising;
a housing having a cassette-receiving passageway for releaseably receiving the cassette;
a race mounted in the housing on one side of the cassette-receiving passageway for engagement with the inflow line through one of the opposed through openings of the cassette when the cassette is inserted in the cassette-receiving passageway; and
pumping means, mounted in the housing on the other side of the cassette-receiving passageway from the race, operable through the other of the opposed openings of the cassette for squeezing the inflow line against the race to pump irrigation fluid through the inflow line;
means for moving the race and the pumping means relative to one another between a release position, wherein the race and pumping means are sufficiently spaced apart to allow the cassette to be inserted into and removed from the cassette-receiving passageway, and an operating position, wherein the race and pumping means are positioned relative to one another such that the race engages the inflow line through one of the opposed through openings through the cassette and the pumping means engages the inflow line through the other of the opposed through openings through the cassette to squeeze the inflow line between the pumping means and race.
4 Assignments
0 Petitions
Accused Products
Abstract
An irrigation system for use in endoscopic procedures for maintaining and controlling flow of irrigation fluid to an internal body irrigation site. The system includes a tubing set comprising inflow and outflow lines and a cassette, and an fluid control module comprising a race and a pumping mechanism that squeezes the inflow line of the tubing set against the race to pump fluid to the irrigation site. The cassette includes a through opening exposing a portion of the inflow line to the race and pumping mechanism so that the cassette merely holds the inflow line in alignment with the pumping mechanism but is not required to resist the compressive force of the pumping mechanism. The cassette may include a second through opening exposing a portion of the outflow line to a valve mechanism to regulate pressure independently of the pump mechanism, and rib-or-groove alignment mechanism to align the inflow line with the pumping mechanism and the outflow line with the valve mechanism.
128 Citations
49 Claims
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1. 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 tubing set comprising; an inflow line for providing irrigation fluid to the internal body irrigation site; and a cassette holding a held portion of the inflow line and having opposed through openings exposing an exposed segment of the held portion of the inflow line; and an irrigation pump comprising; a housing having a cassette-receiving passageway for releaseably receiving the cassette; a race mounted in the housing on one side of the cassette-receiving passageway for engagement with the inflow line through one of the opposed through openings of the cassette when the cassette is inserted in the cassette-receiving passageway; and pumping means, mounted in the housing on the other side of the cassette-receiving passageway from the race, operable through the other of the opposed openings of the cassette for squeezing the inflow line against the race to pump irrigation fluid through the inflow line; means for moving the race and the pumping means relative to one another between a release position, wherein the race and pumping means are sufficiently spaced apart to allow the cassette to be inserted into and removed from the cassette-receiving passageway, and an operating position, wherein the race and pumping means are positioned relative to one another such that the race engages the inflow line through one of the opposed through openings through the cassette and the pumping means engages the inflow line through the other of the opposed through openings through the cassette to squeeze the inflow line between the pumping means and race. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. 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 tubing set comprising; an inflow line for providing irrigation fluid to the internal body irrigation site; and a cassette holding a held portion of the inflow line and having opposed through openings exposing an exposed segment of the held portion of the inflow line; and an irrigation pump comprising; a housing having a cassette-receiving passageway for releaseably receiving the cassette; a race mounted in the housing on one side of the cassette-receiving passageway for engagement with the inflow line through one of the opposed through openings of the cassette when the cassette is inserted in the cassette-receiving passageway; and pumping means, mounted in the housing on the other side of the cassette-receiving passageway from the race, operable through the other of the opposed openings of the cassette for squeezing the inflow line against the race to pump irrigation fluid through the inflow line; means for moving the race and the pumping means relative to one another between a release position, wherein the race and pumping means are sufficiently spaced apart to allow the cassette to be inserted into and removed from the cassette-receiving passageway, and an operating position, wherein the race and pumping means are positioned relative to one another such that the race engages the inflow line through one of the opposed through openings through the cassette and the pumping means engages the inflow line through the other of the opposed through openings through the cassette to squeeze the inflow line between the pumping means and race, the opposed through openings of the cassette constitutes a first pair of opposed through openings; the tubing set further comprising an outflow line for draining irrigation fluid from the internal body irrigation site, the outflow line having inlet and outlet ends; the cassette holding a held portion of the outflow line between the inlet and outlet ends thereof, and having a outflow-regulating opening exposing an exposed segment of the held portion of the outflow line; and the irrigation pump further including valve means operable through the outflow-regulating opening of the cassette for squeezing the outflow line to regulate the flow of irrigation fluid through the outflow line, the valve means comprising; a valve mounted in the housing on one side of the cassette-receiving passageway and engageable with the outflow line for controllably squeezing the outflow line to regulate flow through the outflow line; and solenoid means for moving the valve between a first position, relative to the cassette-receiving passageway such that the valve does not interfere with inserting cassette in the cassette-receiving passageway or removing the cassette from the cassette receiving passageway, and a second position, adjacent the portion of the outflow line exposed through the outflow-regulating opening of the cassette for flow regulating action of the valve on the outflow line; the cassette having an opening on the opposite side of the outflow line from the outflow-regulating opening, which opening forms, together with the outflow-regulating opening, a second pair of opposed through openings; the valve means further comprising a back support mounted in the housing on the opposite side of the cassette-receiving passageway from the valve in alignment with the valve, the back support being movable between a release position, wherein the back support is positioned relative to the cassette-receiving passageway to allow the cassette to be inserted into or removed from the cassette-receiving passageway, and an operating position, wherein the back support is more closely positioned to the valve than in the release position to allow the valve to squeeze the outflow line against the back support to regulate the flow of irrigation fluid through the outflow line. - View Dependent Claims (18, 19, 20, 21, 22)
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23. 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 tubing set comprising; an inflow line for providing irrigation fluid to the internal body irrigation site; an outflow line for draining irrigation fluid from the internal body irrigation site; and a cassette holding a held portion of each of the inflow and outflow lines, and having at least one first opening exposing an exposed segment of the inflow line and an exposed segment of the outflow line, and at least one second opening on the opposite side of the exposed segment of the outflow line from the first opening; and an irrigation pump comprising; a housing having a cassette-receiving passageway for releaseably receiving the cassette; pumping means, mounted in the housing on one side of the cassette-receiving passageway, operable through the opening of the cassette for squeezing the inflow line to pump irrigation fluid through the inflow line; valve means, mounted in the housing adjacent the cassette-receiving passageway, operable through the opening of the cassette for squeezing the outflow line to regulate the flow of irrigation fluid through the outflow line; and a back support mounted in the housing on the opposite side of the cassette-receiving passageway from the valve means in alignment with the valve means, the back support and valve means being movable relative to one another between a release position, wherein the back support is positioned relative to the cassette-receiving passageway to allow the cassette to be inserted into or removed from the cassette-receiving passageway, and an operating position, wherein the back support is more closely positioned to the valve means than in the release position such that the back support engages the exposed segment of the outflow line through one of the first and second openings to allow the valve means to squeeze the outflow line against the back support to regulate the flow of irrigation fluid through the outflow line. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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30. 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 tubing set comprising; an inflow line for providing irrigation fluid to the internal body irrigation site; an outflow line for draining irrigation fluid from the internal body irrigation site; and a cassette holding a held portion of each of the inflow and outflow lines, and having at least one opening exposing an exposed segment of the inflow line and an exposed segment of the outflow line; and an irrigation pump comprising; a housing having a cassette-receiving passageway for releaseably receiving the cassette; pumping means, mounted in the housing on one side of the cassette-receiving passageway, operable through the opening of the cassette for squeezing the inflow line to pump irrigation fluid through the inflow line; and valve means, mounted in the housing adjacent the cassette-receiving passageway, operable through the opening of the cassette for squeezing the outflow line to regulate the flow of irrigation fluid through the outflow line, the valve means comprising; a valve mounted in the housing on one side of the cassette-receiving passageway, the valve being engageable with the outflow line to regulate the flow of irrigation fluid in the outflow line; and solenoid means for moving the valve between a first position, relative to the cassette-receiving passageway such that the valve does not interfere with inserting cassette in the cassette-receiving passageway or removing the cassette from the cassette receiving passageway, and a second position, adjacent the portion of the outflow line exposed through the outflow-regulating opening of the cassette for flow regulating action of the valve on the outflow line; the cassette having an opening on the opposite side of the outflow line from the outflow-regulating opening, which opening forms, together with the outflow-regulating opening, a pair of opposed through openings; the valve means further comprising a back support mounted in the housing on the opposite side of the cassette-receiving passageway from the valve in alignment with the valve, the back support being movable between a release position, wherein the back support is positioned relative to the cassette-receiving passageway to allow the cassette to be inserted into or removed from the cassette-receiving passageway, and an operating position, wherein the back support is more closely positioned to the valve than in the release position such that the back support engages the exposed segment of the outflow line through one of the opposed through openings to allow the valve to squeeze the outflow line against the back support to regulate the flow of irrigation fluid through the outflow line. - View Dependent Claims (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 tubing set comprising; an inflow line for providing irrigation fluid to the internal body irrigation site; an outflow line for draining irrigation fluid from the internal body irrigation site; and a cassette holding a held portion of each of the inflow and outflow lines, and having at least one opening exposing an exposed segment of the inflow line and an exposed segment of the outflow line; and an irrigation pump comprising; a housing having a cassette-receiving passageway for releaseably receiving the cassette; pumping means, mounted in the housing on one side of the cassette-receiving passageway, operable through the opening of the cassette for squeezing the inflow line to pump irrigation fluid through the inflow line; and valve means, mounted in the housing adjacent the cassette-receiving passageway, operable through the opening of the cassette for squeezing the outflow line to regulate the flow of irrigation fluid through the outflow line; the tubing set further comprising information-conveying means for conveying information about fluid pressure at the irrigation site to the irrigation pump, the information-conveying means including cooperable communication means mounted in the cassette and in the irrigation pump such that such information can be transmitted to the irrigation pump when the cassette is inserted into the cassette-receiving passageway; the information-conveying means comprising a pressure sensing line providing a fluid column for transmitting pressure from the internal body irrigation site, the cooperable communication means comprising; a first fitting mounted on the cassette in communication with the pressure sensing line; and a second fitting mounted in the irrigation pump, complementary to the first fitting, and positioned relative to the cassette-receiving passageway such that the first fitting and the second fitting are connected when the cassette is inserted into the cassette-receiving passageway. - View Dependent Claims (37)
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38. An irrigation system for use in endoscopic procedures for maintaining and controlling flow and pressure of irrigation fluid in an internal body irrigation site, the system comprising:
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a tubing set comprising; an inflow line for providing irrigation fluid to the internal body irrigation site; a pressure sensing line for transmitting information about fluid pressure at the internal body irrigation site; and a cassette holding a held portion of each of the inflow and pressure sensing lines, the cassette having at least one opening exposing an exposed segment of inflow line, and coupling means for bringing the pressure sensing line in communication with an irrigation pump; and an irrigation pump comprising; a housing having a cassette-receiving passageway for releaseably receiving the cassette; pumping means, mounted in the housing on one side of the cassette-receiving passageway, operable through the opening of the cassette for squeezing the inflow line to pump irrigation fluid through the inflow line; and cooperable coupling means in the cassette-receiving passageway of the irrigation pump for engagement with the coupling means of the cassette to bring the pressure sensing line in communication with the irrigation pump; the pressure sensing line providing a fluid column for transmitting pressure from the internal body irrigation site; the coupling means on the cassette comprising a first fitting mounted on the cassette in communication with the pressure sensing line; and the cooperable coupling means on the irrigation pump comprising a second fitting mounted in the irrigation pump, complementary to the first fitting, and positioned relative to the cassette-receiving passageway such that the first fitting and the second fitting are connected when the cassette is inserted into the cassette-receiving passageway. - View Dependent Claims (39, 40, 41, 42, 43)
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44. An irrigation system for use in endoscopic procedures for controlling flow of irrigation fluid from an internal body irrigation site and fluid pressure in the internal body irrigation site, the system comprising:
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a tubing set comprising; an outflow line for draining irrigation fluid from the internal body irrigation site; a pressure sensing line for transmitting information about fluid pressure at the internal body irrigation site; and a cassette holding a held portion of each of the outflow and pressure sensing lines, the cassette having at least one opening exposing an exposed segment of the outflow line, and coupling means for bringing the pressure sensing line in communication with an irrigation control module; and an irrigation control module comprising; a housing having a cassette-receiving passageway for releaseably receiving the cassette; valve means, mounted in the housing adjacent the cassette-receiving passageway, operable through the opening of the cassette for squeezing the outflow line to regulate the flow of irrigation fluid through the outflow line; and cooperable coupling means in the cassette-receiving passageway of the housing for engagement with the coupling means of the cassette to bring the pressure sensing line in communication with the irrigation control module; the pressure sensing line providing a fluid column for transmitting pressure from the internal body irrigation site; the coupling means on the cassette comprising a first fitting mounted on the cassette in communication with the pressure sensing line; and the cooperable coupling means on the irrigation control module comprising a second fitting mounted in the irrigation control module, complementary to the first fitting, and positioned relative to the cassette-receiving passageway such that the first fitting and the second fitting are connected when the cassette is inserted into the cassette-receiving passageway. - View Dependent Claims (45, 46, 47, 48, 49)
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Specification