US 12,280,236 B2
System for safe radioisotope preparation and injection
Peter Larsen, Vaerlose (DK); Martin Stenfeldt, Vedaek (DK); and Rune Wiik Kristensen, Hinnerup (DK)
Assigned to MEDTRACE PHARMA A/S, Horsholm (DK)
Filed by MedTrace Pharma A/S, Kongens Lyngby (DK)
Filed on May 19, 2021, as Appl. No. 17/324,251.
Application 17/324,251 is a division of application No. 15/738,032, previously published as PCT/EP2016/064221, filed on Jun. 20, 2016.
Claims priority of application No. 15172904 (EP), filed on Jun. 19, 2015.
Prior Publication US 2021/0268170 A1, Sep. 2, 2021
Int. Cl. A61M 39/22 (2006.01); A61B 6/42 (2024.01); A61M 5/00 (2006.01); A61M 5/14 (2006.01); A61M 5/36 (2006.01); F16K 11/085 (2006.01); G21G 1/10 (2006.01); A61B 6/03 (2006.01); G21G 1/00 (2006.01)
CPC A61M 5/007 (2013.01) [A61B 6/4258 (2013.01); A61M 5/00 (2013.01); A61M 5/14 (2013.01); A61M 5/1407 (2013.01); A61M 5/36 (2013.01); A61M 5/365 (2013.01); A61M 39/22 (2013.01); A61M 39/223 (2013.01); F16K 11/085 (2013.01); F16K 11/0853 (2013.01); G21G 1/10 (2013.01); A61B 6/037 (2013.01); A61M 2039/226 (2013.01); A61M 2039/229 (2013.01); A61M 2205/33 (2013.01); A61M 2205/3341 (2013.01); A61M 2205/3379 (2013.01); G21G 2001/0094 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A safety valve for controlling a flow of H215O for use in Positron Emission Tomography, the valve comprising:
a valve element with a flow channel extending through the valve element;
a valve housing extending between a first end and a second end and including at least three valve openings, each valve opening allowing fluid flow into or out of said valve; and
at least two overflow recesses each extending to the first end and the second end of the valve housing, each overflow recess including an outlet opening at both of the first and second end of the valve housing,
wherein the valve element and valve housing are connectable to form an assembled valve, the valve element and the valve housing being in contact with each other in a contact area,
wherein the assembled valve can be arranged in at least two, different open configurations, one of said open configurations defining a first flow path through the flow channel and one set of said valve openings, and another of said open configurations defining a second flow path through the flow channel and another, different set of said valve openings, and
 wherein in each of said at least two open configurations:
each overflow recess is arranged between the valve element and the valve housing,
at least two of the valve openings are connected by the flow channel,
at least one of the valve openings is not connected to the flow channel,
said contact area forms a fluid block preventing fluid flow into said at least one valve opening not connected to the flow channel,
the overflow recesses are not in fluid communication with the flow channel,
each overflow recess is positioned to establish an interruption of said contact area so that the overflow recesses establish safety relief vents that vent overflow fluid, which in case of overpressure passes through said fluid block, through said respective outlet openings, so that in said at least two open configurations said overflow fluid is prevented from entering into said at least one valve opening not connected to the flow channel.