Connecting piece for a tubing

• US 20060157981A1
• Filed: 11/26/2003
• Published: 07/20/2006
• Est. Priority Date: 11/26/2002
• Status: Active Grant

• Current Assignee: Unomedical A/S
• Original Assignee: Unomedical A/S
• Inventors: Christensen, Bjarne Lasse, Hansen, Trygve Kalf
• Granted Patent: US 7,802,824 B2
• Time in Patent Office: Days
• US Class Current: 285/331
• CPC Class Codes: A61F 5/4405 Valves or valve arrangements specially adapted therefor A61F5/441 takes precedence; Fluid inlets or outlets A61F5/4407 takes precedence
• CPC Class Codes: A61M 2039/1027 Quick-acting type connectors
• CPC Class Codes: A61M 2039/1088 having a plurality of male connectors, e.g. Luer connectors
• CPC Class Codes: A61M 2205/581 by audible feedback
• CPC Class Codes: A61M 39/1011 Locking means for securing connection; Additional tamper safeties A61M39/16 takes precedence
• CPC Class Codes: A61M 39/22 Valves or arrangement of valves A61M39/02, A61M39/0247, A61M39/16 take precedence; regulating valves in infusion systems A61M5/16881; in devices worn by the patient for the reception of urine, faeces, catamenial or other discharge, or in colostomy devices A61F5/4405
• CPC Class Codes: Y10S 285/913 Interdigitating
• CPC Class Codes: Y10S 285/921 Snap-fit

Abstract

The invention relates to a connecting piece for a tubing including a first unit and a second unit, the first unit including a first connecting element for a tubing element and a second connecting part for the second unit, the second connecting element including a tubular female part for engagement with the second unit and first sealing elements, and the second unit including a tubular male part with a collar and second sealing elements for cooperating with the first sealing elements, the first and second units further including separator elements. The invention is characterized in that the sealing elements include a locking device; and that the separator elements and the locking device are arranged at a distance in relation to each other. Good locking is accomplished as well as sealing of the joint without a risk of leakage and unintended separation of the two connecting parts; the lock, which is hence internal and protected, ensuring good engagement, while simultaneously the separator elements operate independently of both lock and sealing. Moreover, the sealing elements operate independently of direction and with little force for activation.

Claims

1. A connecting piece (1) for a medical tubing (2), said connecting piece comprising a first unit (3) and a second unit (4), said first unit (3) comprising a first connecting element (5) for a tubing element (6) and a second connecting element (7) for the second unit (4), said second connecting element comprising a tubular female part (8) for engagement with the second unit (4) and first sealing elements (9), and said second unit (4) comprising a tubular male part (10) with a collar (11 ) and second sealing elements (12) for cooperating with the first sealing elements (9), said first unit (3) and second unit (4) comprising respective separator elements (13), characterized in

that the first sealing elements (9) and the second sealing elements (12) are configured for being mutually engageable by moving the male part (10) and the female part (8) axially towards each other for establishing a locking device (14), by which the first unit (3) and the second unit (4) are kept together;

that the separator elements (13) comprise faces that are arranged on the female part (8) and the male part (10), said faces being in abutment against each other when the first unit (3) and the second unit (4) are kept together by means of the locking device (14), said faces being such arranged in the direction of the peripheries of the male part and the female part, respectively, that by a turning of the first unit (3) in relation to the second unit (4) an axially extending force component is provided for causing the sealing elements to leave their mutual engagement; and

that the separator elements (13) and the locking device (14) are arranged such that they are at an axial distance from each other when the first unit (3) and the second unit (4) are kept together by the locking device (14).

2. A connecting piece (1) according to claim 1, characterized in that the separator elements (13) comprise the collar (11), the delimiting edge (15) of said collar being a continuously extending delimiting edge, whereby a connecting line between any two points along the delimiting edge (15) in the peripheral direction of the male part (10) is less than 90°

in relation to the axial extension of the male part (10) and the female part (8).

3. A connecting piece (1) according to claim 1, characterized in that the delimiting edge of the collar provides at least two tongues (16), said delimiting edge being congruent with the delimiting edge (17) of the female part.

4. A connecting piece (1) according to claim 1, characterized in that the delimiting edge of the collar follows the shape of a wave and has a uniform distance between the wave crests (18).

5. A connecting piece (1) according to claim 1, characterized in that the first sealing elements (9) comprise an annularly extending bead (19) arranged on the inner face of the female part;

and that the second sealing elements (12) comprise an annular recess (20) arranged on the outer face of the male part, and which also provide the locking device (14).

6. A connecting piece (1) according to claim 1, characterised in that the first sealing elements comprise an annular recess (21), the delimiting side faces (22) of which are essentially axially parallel with the centre axis of the female part;

and that the second sealing elements (12) comprise an annular flange (23) for providing the delimiting edge (24) of the male part.

7. A connecting piece (1) according to claim 6, characterized in that the de-limiting side faces (25) of the annular flange of the male part extend taperingly in relation to the central axis of the flange (23) and converge towards the delimiting edge (26) of the flange

8. A connecting piece (1) according to claim 6, characterized in that the medially arranged side face for the annular recess of the first sealing elements (9) comprise a beveling (29), said beveling facing laterally.

9. A connecting piece (1) according to claim 7, characterized in that one face (27) of the annular bead of the female part extends taperingly and converges in a direction towards the annular recess (28).

10. A connecting piece (1) according to claim 1, characterized in that the first connecting unit comprises a valve (30).

11. A connecting piece (1) according to claim 10, characterized in that the valve (30) comprises a housing having a displacer means (31) which is displaceable within the housing and perpendicular to the central axis of the first connecting unit, being intended for regulating the passage of liquid in the first connecting unit.

12. A connecting piece (1) according to claim 11, characterized in that the displacer means comprises stops (32) mounted at each end of the displacer means.

13. Use of a connecting piece (1) according to claim 1 for establishing connection between a catheter (33) and a urine discharge bag (34).