Device for transfer of medical substance
First Claim
1. A medical device for the transfer of substances, comprising:
- a cylindrical housing having an outer cylindrical end portion on each of opposite ends thereof,a fiber bundle including a plurality of elongated hollow fiber membranes for the transfer of substances, said hollow fiber membranes having open ends at opposite ends thereof, said fiber bundle being within said housing and extending between opposite ends of said housing to define a first substance transfer chamber between the outer surfaces of said hollow fiber membranes and the inner wall surfaces of said housing,a first substance transferring inlet and a first substance transferring outlet both for communicating with said first substance transfer chamber,first and second partitions for supporting the opposite open ends of said hollow fiber membranes in a fixed position and for separating said open ends from said first substance transfer chamber,a second substance transferring fluid inlet and a second substance transferring fluid outlet both for communicating with interior spaces of said hollow fiber membranes,first and second flow path forming members attached to the opposite ends of said housing, said flow path forming members each comprising a corresponding one of said fluid inlet and said fluid outlet and being provided each with an annular protuberance on a side facing one of said opposite ends of said housing to confront and directly contact and bear against a corresponding one of said partitions in fluid sealing relation, said first and said second partitions each having diameters greater than those of the confronting annular protuberances on the corresponding flow path forming members so that portions of said partitions without said hollow fiber membranes extend radially outwardly of the confronting protuberances; and
a packing and sealing material for adhesively sealing interfacial gaps between each of said flow path forming members, the opposite ends of said housing and the corresponding ones of said partitions, said packing and sealing material being made of a material which is homogeneous with the material from which said partitions are made so as to fluid-tightly adhere to said partitions, said flow path forming members and said partitions being adhesively fastened to each other by said packing and sealing material which adhesively and fluid-tightly contacts outer edges of said protuberances of said flow path forming members, said outer cylindrical portion on the opposite ends of said housing and the portions of said partitions which extend radially outwardly of said confronting protuberances.
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Accused Products
Abstract
A medical device for the transfer of substances, includes a cylindrical housing and, a hollow fiber bundle of a plurality of hollow fiber membranes for transfer of the substances which bundle is inserted within the housing. A first substance transfer chamber is defined by the outer surfaces of the hollow fiber membranes and the inner wall surfaces of the housing, and a first substance transferring inlet and an outlet both communicate with the first substance transfer chamber. Partitions are arranged to support fixedly the opposite ends of the hollow fiber membranes in position, and separate the ends from the substance transfer chamber. A second substance transferring fluid inlet and an outlet communicate with the interior spaces of the hollow fiber membranes, which inlet and outlet are formed together with flow path forming members attached to the opposite ends of the housing, wherein each flow path forming member is provided with an annular protuberance. The flow path forming members and the partitions are fastened to each other by sealing interfacial gaps between them with a packing paterial applied to the outer edges of the protuberances of the flow path forming members, so as to contact the packing material with the partitions.
105 Citations
22 Claims
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1. A medical device for the transfer of substances, comprising:
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a cylindrical housing having an outer cylindrical end portion on each of opposite ends thereof, a fiber bundle including a plurality of elongated hollow fiber membranes for the transfer of substances, said hollow fiber membranes having open ends at opposite ends thereof, said fiber bundle being within said housing and extending between opposite ends of said housing to define a first substance transfer chamber between the outer surfaces of said hollow fiber membranes and the inner wall surfaces of said housing, a first substance transferring inlet and a first substance transferring outlet both for communicating with said first substance transfer chamber, first and second partitions for supporting the opposite open ends of said hollow fiber membranes in a fixed position and for separating said open ends from said first substance transfer chamber, a second substance transferring fluid inlet and a second substance transferring fluid outlet both for communicating with interior spaces of said hollow fiber membranes, first and second flow path forming members attached to the opposite ends of said housing, said flow path forming members each comprising a corresponding one of said fluid inlet and said fluid outlet and being provided each with an annular protuberance on a side facing one of said opposite ends of said housing to confront and directly contact and bear against a corresponding one of said partitions in fluid sealing relation, said first and said second partitions each having diameters greater than those of the confronting annular protuberances on the corresponding flow path forming members so that portions of said partitions without said hollow fiber membranes extend radially outwardly of the confronting protuberances; and a packing and sealing material for adhesively sealing interfacial gaps between each of said flow path forming members, the opposite ends of said housing and the corresponding ones of said partitions, said packing and sealing material being made of a material which is homogeneous with the material from which said partitions are made so as to fluid-tightly adhere to said partitions, said flow path forming members and said partitions being adhesively fastened to each other by said packing and sealing material which adhesively and fluid-tightly contacts outer edges of said protuberances of said flow path forming members, said outer cylindrical portion on the opposite ends of said housing and the portions of said partitions which extend radially outwardly of said confronting protuberances. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A medical device for the transfer of substances, comprising:
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a cylindrical housing having an outer cylindrical portion on each of opposite ends thereof, a fiber bundle including a plurality of elongated hollow fiber membranes for the transfer of substances, said hollow fiber membranes having open ends at opposite ends thereof, said fiber bundle being within said housing and extending between opposite ends of said housing to define a first substance transfer chamber between the outer surfaces of said hollow fiber membranes and the inner wall surfaces of said housing, a first substance transferring inlet and a first substance transferring outlet both located on said cylindrical housing for communicating with said first substance transfer chamber, first and second partitions for supporting the opposite open ends of said hollow fiber membranes in a fixed position at the opposite ends of said cylindrical housing and for separating said open ends from said first substance transfer chamber, each of said partitions being formed of a resilient material; a second substance transferring fluid inlet and a second substance transferring fluid outlet both for communicating with interior spaces of said hollow fiber membranes, first and second flow path forming members attached to the opposite ends of said housing, said flow path forming members each comprising a corresponding one of said second fluid inlet and said second fluid outlet and being provided each with an annular protuberance on a side facing one of said opposite ends of said housing for directly contacting and bearing against a confronting end of a corresponding one of said partitions in fluid sealing relation, said annular protuberances, the corresponding partition and flow path forming member defining a second substance transfer chamber in communication with said interior spaces of said fiber membranes and separate from said first substance transfer chamber, said first and second partitions each having diameters greater than those of the confronting annular protuberances on the corresponding flow path forming members so that portions of said partitions without said hollow fiber membranes extend radially outwardly of the confronting protuberances, and a packing and sealing material for adhesively sealing interfacial gaps between each of said flow path forming members, the opposite ends of said housing and the corresponding ones of said partitions, said packing and sealing material being made of a material which is homogeneous with the material from which said partitions are made so as to fluid-tightly adhere to said partitions, said flow path forming members and said partitions being adhesively fastened to each other by said packing and sealing material which adhesively and fluid-tightly contacts outer edges of said protuberances of said flow path forming members, said outer cylindrical portion on the opposite ends of said housing and the portions of said partitions which extend radially outwardly of said confronting protuberances. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification