Connector device for a fluid system for medical purposes

• US 10,420,924 B2
• Filed: 09/28/2015
• Issued: 09/24/2019
• Est. Priority Date: 09/30/2014
• Status: Active Grant

• Current Assignee: B Braun Melsungen AG (B. Braun Holding GmbH & Co. KG)
• Original Assignee: B Braun Melsungen AG (B. Braun Holding GmbH & Co. KG)
• Inventors: Bolz, Johannes, Jorn, Jens, Katerkamp, Andreas
• Primary Examiner(s): Hewitt, II, James M
• Application Number:
  US14/868,108
• Publication Number:
  US 20160089529A1
• Time in Patent Office: 1,457 Days
• CPC Class Codes: A61M 2039/1027 Quick-acting type connectors
• CPC Class Codes: A61M 2039/1083 having a plurality of female connectors, e.g. Luer connectors
• CPC Class Codes: A61M 2039/1088 having a plurality of male connectors, e.g. Luer connectors
• CPC Class Codes: A61M 39/10 Tube connectors; Tube couplings A61M39/02 takes precedence; connecting needles to syringes or hubs A61M5/34; connecting catheter tubes to hubs A61M25/0014
• CPC Class Codes: A61M 39/1011 Locking means for securing connection; Additional tamper safeties A61M39/16 takes precedence
• CPC Class Codes: A61M 39/26 Valves closing automatically on disconnecting the line and opening on reconnection thereof check valves A61M39/24
• CPC Class Codes: F16L 13/0209 Male-female welded joints F16L13/0245 and F16L13/0254 take precedence
• CPC Class Codes: F16L 13/103 Adhesive joints for hoses F16L33/34
• CPC Class Codes: F16L 29/02 with a cut-off device in one of the two pipe ends, the cut-off device being automatically opened when the coupling is applied
• CPC Class Codes: F16L 41/023 Y- pieces F16L41/025, F16L41/026, F16L41/028 take precedence

Abstract

A connector device for a fluid system for medical purposes is disclosed that includes a main housing having a fluid flow chamber forming two channel portions leading in different directions towards two open attachments, wherein the attachments are provided for connection to a fluid line or a fluid reservoir, and with an attachment port which opens into the fluid flow chamber and which has a closure arrangement and which includes a Luer connecting portion. The fluid flow chamber has a dimensionally stable flow-guiding wall which is arranged between the two channel portions in the fluid flow chamber and protrudes freely with a front edge towards the attachment port in such a way that the closure arrangement, upon opening of the closure arrangement, interacts with the front edge of the flow-guiding wall in order to effect flow of fluid out of the attachment port into only one channel portion.

Claims

1. A connector device for a fluid system for medical purposes, comprising:

a main housing which has a fluid flow chamber that forms channel portions leading in different directions towards two open attachments,

wherein the attachments are provided for connection to in each case a fluid line or a fluid reservoir, and also with an attachment port which opens into the fluid flow chamber and is provided with a closure arrangement and which comprises a connecting portion for connection to an attachment part,

wherein the fluid flow chamber has a dimensionally stable flow-guiding wall which is rigidly arranged between the two channel portions in the fluid flow chamber and protrudes freely with a front edge towards the attachment port in such a way that the closure arrangement, in an open position, interacts with the front edge of the flow-guiding wall in order to obtain a flow of fluid from the attachment port at least substantially to only one channel portion,

wherein the closure arrangement includes a movable actuating body that is mounted in the attachment port.

2. The connector device according to claim 1, wherein the connecting portion is designed as a Luer slip or Luer lock connecting portion.

3. The connector device according to claim 1, wherein the connecting portion is designed as an enteral small bore connector.

4. The connector device according to claim 1, wherein the flow-guiding wall is integrated in one piece in the main housing.

5. The connector device according to claim 1, wherein the flow-guiding wall, at the free front edge, has an arc-shaped or V-shaped curvature in cross section over a partial area coaxial to a central longitudinal axis (M) of the attachment port, and wherein the flow-guiding wall is formed in a mouth region where one channel portion leads into the other channel portion.

6. The connector device according to claim 1, wherein, as part of the closure arrangement, the movable actuating body is configured to open a flexible closure membrane in accordance with a connection to a Luer attachment part.

7. The connector device according to claim 6, wherein the flow-guiding wall protrudes in the direction of the attachment port in such a way that the actuating body and/or the flexible closure membrane, in the open position of the closure arrangement, are in contact with partial areas of the flow-guiding wall in such a way that a flow of fluid delivered into the attachment port from the Luer attachment part flows at least substantially into the channel portion.

8. The connector device according to claim 7, wherein the actuating body and/or the flexible closure membrane, in the open position of the closure arrangement, are positioned on or next to at least a partial area of the flow-guiding wall.

9. The connector device according to claim 6, wherein a curvature of the free front edge of the flow-guiding wall is adapted to a through-channel of the actuating body, coaxial to the central longitudinal axis (M) of the attachment port, in such a way that a groove thereby formed in the flow-guiding wall, on a side facing towards one channel portion, is flush with the through-channel of the actuating body when the actuating body is moved to its open position.

10. The connector device according to claim 1, wherein the flow-guiding wall is designed for one channel portion as a flow-guiding surface which deflects a stream of fluid and which causes a deflection, in the direction of the attachment port, of fluid flowing out of one channel portion in the direction of the other channel portion.

11. The connector device according to claim 1, wherein the attachment port is provided in a housing component which is produced separately from the main housing and which is produced from a more inert plastics material than a plastics material of the main housing, in order to achieve greater chemical resistance than the main housing to medical active substances that can be delivered at the attachment port to the fluid system.

12. The connector device according to claim 11, wherein the housing component having the attachment port is connected tightly to the main housing by cohesive bonding, in particular by one of gluing or welding.