United States Patent [19] [li] Patent Number: 4,629,159
Wellenstam [45] Date of Patent: Dec. 16,1986
[54] VALVE-PROVIDED CONNECTING DEVICE
[75] Inventor: Kjell I. Wellenstam, Goteborg, Sweden
[73] Assignee: Astra Meditec AB, Molndal, Sweden
[21] Appl. No.: 749,889
[22] Filed: Jun. 27, 1985
[30] Foreign Application Priority Data
Jan. 8, 1985 [SE] Sweden 8500075
[51] Int. CI* F16K 37/28
[52] U.S. CI 251/149.6; 137/614.18;
604/247; 604/323; 604/326; 604/905
[58] Field of Search 137/614.18, 614.2, 843;
251/149.6; 604/247, 256, 323, 326, 335, 350,
905
[56] References Cited
U.S. PATENT DOCUMENTS
839,912 1/1907 Whelan 137/877
2,949,929 8/1960 Moore, Jr. et al 137/843 X
3,476,142 11/1969 Schultz 137/614.2 X
3,477,471 11/1969 Mallinson 137/614.18
3,610,268 10/1971 Arutunoff 137/614.18 X
3,642,037 2/1972 Cunningham .
3,729,023 4/1973 Hammond 251/149.6 X
3,967,645 7/1976 Gregory 604/350 X
4,354,523 10/1982 Hochmuthetal 137/614.18
FOREIGN PATENT DOCUMENTS
0038470 10/1981 European Pat. Off. .
0080379 1/1983 European Pat. Off. .
1616477 1/1971 Fed. Rep. of Germany .
WO81/00512 8/1980 PCT Int'l Appl. .
2094151 9/1982 United Kingdom .
2118440 11/1983 United Kingdom .
Primary Examiner—A. Michael Chambers
Assistant Examiner—John C. Fox
[57] ABSTRACT
Valve-provided tube connecting device to connection with a liquid line intended to be connected to a patient, preferably for draining of body liquids. Said connection device consists of a drip chamber house, a connecting house containing a spring loaded valve body, which connecting house is designed to connection with a connector. The valve body consists of a conical upper sealing part, a guide part and a solid, conical lower sealing part. The device attained a closed system, which decreases the risk of bacteria infections and spillage.
8 Claims, 8 Drawing Figures
