초록 ▼

A heat exchanger-incorporated hollow fiber type artificial lung comprises an artificial lung part composed of a first housing, a bundle of multiple gas-exchange hollow fiber membranes enclosed with the first housing, partitions formed at the opposite ends of the bundle of hollow fiber membranes, and

A heat exchanger-incorporated hollow fiber type artificial lung comprises an artificial lung part composed of a first housing, a bundle of multiple gas-exchange hollow fiber membranes enclosed with the first housing, partitions formed at the opposite ends of the bundle of hollow fiber membranes, and a blood passage and an oxygen chamber both defined by the first housing, the bundle of hollow fiber membranes, and the partitions. A heat exchanger part is composed of a second housing, a plurality of tubes enclosed with the second housing, partitions formed at the opposite ends of the tubes, and a blood passage and a heat exchange chamber both defined by the second housing, the tubes and the partitions. The artificial lung part and the heat exchanger part are connected to each other by having their respective first and second housings coaxially joined so as to give rise to a blood chamber between the opposed partitions of first and second housings. The connection between the artificial lung part and the heat exchanger part is accomplished by forming connecting ends one each at the opposed sides of the two housings, joining the connecting ends across an annular spacer by virtue of a connecting ring fitted across the outer surfaces of the connecting ends and, through at least two holes bored in the connecting ring so as to communicate with the vacant part defined by the connecting ring, the opposed partitions, and the annular ring. An adhesive agent is then injected through the holes so as to fill up the interior of the vacant part.

대표청구항 ▼

A heat exchanger-incorporated hollow fiber type artificial lung, comprising: a hollow fiber type artificial lung including: a first generally cylindrical housing having an inner wall, a hollow fiber bundle of a plurality of gas-exchange hollow fiber membranes mutually separated and parallelly dispos

A heat exchanger-incorporated hollow fiber type artificial lung, comprising: a hollow fiber type artificial lung including: a first generally cylindrical housing having an inner wall, a hollow fiber bundle of a plurality of gas-exchange hollow fiber membranes mutually separated and parallelly disposed within said first housing in the axial direction of said first housing, said fiber membranes having respective openings, a first and a second partition at opposite ends of said first housing for water-tightly supporting said hollow fiber membranes at the opposite ends of said membranes without blocking the openings of the membranes and for defining an oxygen chamber in conjunction with the inner wall of said first housing and the outer surfaces of said hollow fiber membranes, an oxygen inlet and an oxygen outlet each for communicating with said oxygen chamber, and a first blood manifold for communicating blood to and from the interiors of said hollow fiber membranes at the openings thereof on the side of said first partition; a shell-and-tube type heat exchanger part including: a second generally cylindrical housing having an inner wall, a plurality of tubes mutually separated and parallelly disposed inside said second housing in the axial direction of said second housing, said tubes having respective openings, a third and a fourth partition at opposite ends of said second housing for water-tightly supporting said tubes at the opposite ends of said tubes without blocking the openings of said tubes and for defining a heat-exchange medium chamber in conjunction with the inner wall of said second housing and the outer surfaces of said tubes, a heat-exchange medium inlet and a heat-exchange medium outlet each for communicating with said heat-exchange medium chamber, and a second blood manifold for communicating blood to and from the interiors of said tubes at the openings thereof on the side of said fourth partition; and connecting means for joining said first and said second housings coaxially to one another so that said second partition at a connecting end of said first housing remote from said first blood manifold faces said third partition at a connecting end of said second housing remote from said second blood manifold, said connecting means forming at least a part of a blood chamber formed between said second partition and said third partition, said connecting means including: an annular spacer interposed between said third partitions, and abutting confronting faces of said second and said third partitions, said annular spacer having an inner wall defining a circumferential inner wall of said blood chamber formed between said second and third partitions, and said annular spacer having an outer periphery, said outer periphery having an annular protuberance thereon, a connecting ring arranged to be fitted across the outsides of said connecting ends of said first and said second housings, said connecting ring surrounding said annular spacer and being spaced outwardly of said outer periphery of said annular spacer, to form an annular space between said connecting ring and said annular spacer, said connecting ring having at least two injection holes therein to communicate with said annular space interior of said connecting ring, said annular space being defined by the inner periphery of said connecting ring, portions of confronting faces of said third and second partitions, and the outer periphery of said annular spacer, and an adhesive sealing agent injected through said injection holes of said connecting ring and filling up and sealing said annular space interior of said connecting ring and adhesively and liquid tightly fastening said first and second housings, said annular spacer, and said connecting ring to one another; whereby said artificial lung part and heat exchanger part are coaxially connected together so as to form a liquid tight blood chamber between said second partition and said third partition interior of said inner wall of said annular spacer