US 12,239,813 B2
Coupling device
Rebecca Stjernberg Bejhed, Uppsala (SE); Christopher Blacker, Uppsala (SE); Katarina Hedbeck, Stockholm (SE); Ronny Brakhya, Huskvarna (SE); and Robert Axelsson, Gränna (SE)
Assigned to Interlinked AB, (SE)
Appl. No. 18/023,083
Filed by Interlinked AB, Stockholm (SE)
PCT Filed Jul. 21, 2021, PCT No. PCT/EP2021/070401
§ 371(c)(1), (2) Date Feb. 24, 2023,
PCT Pub. No. WO2022/042956, PCT Pub. Date Mar. 3, 2022.
Claims priority of application No. 20192448 (EP), filed on Aug. 24, 2020.
Prior Publication US 2023/0310825 A1, Oct. 5, 2023
Int. Cl. A61M 39/10 (2006.01); A61M 39/26 (2006.01)
CPC A61M 39/1011 (2013.01) [A61M 39/26 (2013.01); A61M 2039/1016 (2013.01); A61M 2039/1027 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A medical device, comprising:
a detachable coupling for transferring a fluid, the coupling comprising:
a first portion comprising a first housing defining a principal axis and an opening, the first housing having a fluid path tube portion extending into the opening, and a second housing slidably disposed in the opening, the second housing having a first portion of a detachable locking mechanism and retaining a sealing element for engaging a distal end of the tube portion;
a second portion comprising a third housing defining a fluid path channel and having a sealing element for engaging the channel, the third housing having a corresponding portion of the detachable locking mechanism; and
a flow control element disposed in the tube portion or the channel to prevent fluid flow in an uncompressed state of the flow control element, the flow control element comprising a spring element, and a head portion arranged at an end of the spring element, wherein the head portion comprises a surface facing the sealing element of the third housing;
wherein, in a detached state of the first portion and second portion, fluid flow is prevented by the respective sealing elements and flow control element, and in an attached state of the first portion and the second portion, the third housing is advanced along the axis into the opening of the first housing thereby slidably displacing the second housing, whereupon both sealing elements are advanced over the tube portion such that the tube portion establishes fluid communication with the channel, wherein the tube portion separates the surface of the head portion of the flow control element and the sealing element of the third housing whereby the flow control element is biased open to allow fluid flow, and the portions of the detachable locking mechanism engage to lock the first portion and the second portion together.