GB1435771A - Medical drainage collection assembly - Google Patents

Abstract

1435771 Fluid withdrawing apparatus C R BARD Inc 3 May 1973 [9 Aug 1972] 21083/73 Heading A5R Fluid Withdrawing Device: A fluid withdrawing device 60, Fig. 1, comprises a rigid container 62, a lid 64 having a fluid inlet port 70 and an evacuation port 66, and a flexible sack 76 for receiving fluid through the inlet port 70, the sack 76 having multiple walls with apertures 90, 92, Fig. 8, in their upper portions for preventing collapse of the sack 76 upon evacuation. Containers: The container 62 may be graduated by indicia 78. The lid 64 is sealed to the container 62 by means of an annular bead 114 on the rim of the container 62 and a mating groove 142 in the lid 64. The container 62 may be made stackable by providing a shoulder (206a), Fig. 16 (not shown) between a cylindrical portion (202a) and a frustro-conical portion (204a), and projections (210a) in the lower portion of a container (200a). Two containers (220, 224), Fig. 18 (not shown) may be mounted on rollers for greater mobility, and the two containers (220, 224) may be connected in parallel using Y- connectors (230, 238), to increase the capacity of the drainage device. Ports: A fluid inlet port 82 is mounted in a concave lid 64 and has a diaphragm 134 connecting an inner member 130 with a conduit 72 for a drainage tube 74. The diaphragm 134 provides resiliency so that the inner and outer members 130, 132 of the port 82 can combine more firmly to form a seal when the container 62 is evacuated. Sacks: The sack 76 is generally flat and rectangular and is made of a transparent plastics material such as polyethylene modified with ethyl vinyl acetate. At its top the sack 76 supports the port 82 and is sealed thereto. The apertures 90, 92 in the inner and outer sacks are formed in staggered relationship to act as a baffle against splashing liquid. A line of perforations 112 is defined in the sack 76 so that it can be easily torn to empty the contents of a full sack. The apertures 90, 92 are defined by semi circular or quadrant shaped slits separated by hinges 170. Levers: Levers 94, 96 are provided under the lid 64, for separating the sack 76 from the lid 64. The levers 94, 96 are supported with end portions thereof disposed between. the underside of the lid 64 and the port 82. When pads 124, 126 on the opposite ends of the levers 94, 96 are depressed manually, they separate the sack 76 from the lid 64. A float valve member 97 is located above the lever 96 and acts to close the evacuation port 66 when the fluid in the container 62 overflows. The valve member 97 is shaped to accommodate part of the port 82. A U-shaped cut-out portion (194), Fig. 11 (not shown) provides greater flexibility to the valve member 97. In an alternative embodiment, an arm (314), Fig. 20 (not shown) is slidably supported on top of a container (300) by a post (314). A cylindrical projection (316) on the arm (314) is used to dislodge the fluid inlet port from the lid of the container 300.