Non-Occlusive, Laterally-Constrained Injection Device
First Claim
1. A flexible cytoscope system comprising:
- a flexible cytoscope having a length of tubing including a working channel defined therein; and
an injection device having an injection lumen defined therein, the injection device residing within the working channel to define an open channel, the injection device having a device body defining a device cross-section continuously in contact with the working channel at two or more contact locations so as to provide lateral support to the flexible cytoscope.
3 Assignments
0 Petitions
Accused Products
Abstract
A flexible cytoscope having an injection device with a cross-sectional profile allowing for irrigation flow without the risk of buckling or lateral deflection of the injection device. The cross-sectional profile is configured such that the injection device is constrained by the cytoscope lumen. The cross-sectional profile of the injection device can be formed integrally with the injection device or can alternatively comprise a secondary structure that is attached about an exterior portion of the injection device. The cross-sectional profile can be present at intervals along the length of the injection device or can extend the entire length of the injection device. The injection device can be configured such that the cross-sectional profile centers the injection device within the cytoscope lumen or in an off-set or non-centered position depending upon the treatment being performed.
91 Citations
15 Claims
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1. A flexible cytoscope system comprising:
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a flexible cytoscope having a length of tubing including a working channel defined therein; and an injection device having an injection lumen defined therein, the injection device residing within the working channel to define an open channel, the injection device having a device body defining a device cross-section continuously in contact with the working channel at two or more contact locations so as to provide lateral support to the flexible cytoscope. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of delivering a treatment fluid to a treatment location comprising:
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providing an injection device having an injection lumen defined therein, the injection device having a device body defining a device profile cross-section; positioning the injection device within a working channel of a flexible cytoscope, the device profile cross-section continuously in contact with the working channel at two or more contact locations; advancing the injection device through the working channel such that injection lumen is positioned proximate a treatment location; and delivering a therapeutic fluid to treatment location through the injection lumen. - View Dependent Claims (11, 12, 13)
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14. A method for preventing obstruction of a flexible cytoscope comprising:
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providing an injection device having a device body defining a device cross-sectional profile; and positioning the injection device within a working lumen of a flexible cytoscope such that the device cross-sectional profile contacts the working lumen in a least two contact locations. - View Dependent Claims (15)
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Specification