Medical device insufflation connection
A medical device includes a device body and an insufflation fitting coupled to and extending from the device body. The insufflation fitting includes an annular low-flow fitting and an annular high-flow fitting. The annular low-flow fitting includes a radially outward surface generally reverse of a first inner sealing surface. The inner sealing surface defines a flow passageway for insufflation gas. The annular high-flow fitting includes a second inner sealing surface extending around and radially offset from the radially outward surface of the low-flow fitting.
1 . A medical device comprising:
a device body and an insufflation fitting coupled to and extending from the device body;
the insufflation fitting comprising an annular low-flow fitting and an annular high-flow fitting;
the annular low-flow fitting comprising a radially outward surface generally reverse of a first inner female tapered sealing surface, the first inner female tapered sealing surface defining at least a portion of a same flow passageway for insufflation gas through both the annular low-flow fitting and the annular high-flow fitting and into the device body;
the annular low-flow fitting being concentric with and nested partially within the annular high-flow fitting; and
the annular high-flow fitting comprising a second inner female tapered sealing surface surrounding and radially offset from at least a portion of the radially outward surface of the low-flow fitting.
2 . The medical device of claim 1 , wherein an inner diameter of the first inner female tapered sealing surface is largest at an end of the low-flow fitting offset from the device body.
3 . The medical device of claim 1 , wherein an inner diameter of the second inner female tapered scaling surface is largest at an end of the high-flow fitting offset from the device body.
4 . The medical device of claim 1 , wherein the first inner female tapered sealing surface comprises an annular sealing surface.
5 . The medical device of claim 1 , wherein the second inner female tapered sealing surface comprises an annular sealing surface.
6 . The medical device of claim 1 , further comprising:
a high-flow connector surrounding the low-flow fitting and comprising a radially outer male sealing surface in sealing engagement with the second inner female tapered sealing surface.
7 . The medical device of claim 6 , wherein the high-flow fitting further comprises:
a second radially outer surface generally reverse of the second inner female tapered sealing surface; and
a coupling portion on the second radially outer surface.
8 . The medical device of claim 7 , wherein the high-flow connector further comprises a locking collar having a coupling portion, the coupling portion of the high-flow fitting being coupled to the coupling portion of the locking collar of the high-flow connector.
9 . The medical device of claim 1 , further comprising:
a low-flow connector comprising a radially outer male sealing surface in sealing engagement with the first inner female tapered sealing surface.
10 . The medical device of claim 9 , wherein the low-flow fitting further comprises a coupling portion on the radially outer male sealing surface.
11 . The medical device of claim 10 , wherein the low-flow connector further comprises a locking collar having a coupling portion, the coupling portion of the low-flow fitting being coupled to the coupling portion of the locking collar of the low-flow connector.
12 . A medical device fitting comprising:
an annular low-flow fitting having a radially outward surface generally reverse from a first inner female tapered sealing surface, the first inner female tapered sealing surface defining at least a portion of a same flow passageway for insufflation gas through both the annular low-flow fitting and the annular high-flow fitting;
an annular high-flow fitting having a second inner female tapered sealing surface surrounding and radially offset from at least a portion of the radially outward surface of the low-flow fitting, the annular low-flow fitting being concentric with and nested partially within the annular high-flow fitting; and
a high-flow connector surrounding the low-flow fitting and comprising a radially outer male sealing surface in sealing engagement with the second inner female tapered sealing surface.
13 . The medical device fitting of claim 12 , wherein the high-flow fitting further comprises:
a second radially outer surface generally reverse of the second inner female tapered sealing surface; and
a coupling portion on the second radially outer surface.
14 . The medical device fitting of claim 13 , wherein the high-flow connector further comprises a locking collar having a coupling portion, the coupling portion of the high-flow fitting being coupled to the coupling portion of the locking collar of the high-flow connector.
15 . A medical device fitting comprising:
an annular low-flow fitting having a radially outward surface generally reverse from a first inner female tapered sealing surface; and
an annular high-flow fitting having a second inner female tapered sealing surface surrounding and radially offset from at least a portion of the radially outward surface of the low-flow fitting, the annular low-flow fitting being concentric with and nested partially within the annular high-flow fitting, and the first inner female tapered sealing surface defining at least a portion of a same flow passageway for insufflation gas through both the annular low-flow fitting and the annular high-flow fitting.