Devices for draining biological fluids

• US 6,261,269 B1
• Filed: 07/09/1999
• Issued: 07/17/2001
• Est. Priority Date: 07/10/1998
• Status: Expired due to Fees

• Current Assignee: NMT Neurosciences Implants SA
• Original Assignee: NMT Neurosciences Implants SA
• Inventors: Lecuyer, Alain
• Primary Examiner(s): Seidel, Richard K.
• Assistant Examiner(s): Sirmons, Kevin C.
• Application Number:
  US09/350,288
• Time in Patent Office: 739 Days
• Field of Search: 604/251, 604/93, 604/245, 604/256, 604/4.01, 604/167.01, 604/167.03, 604/264, 604/250, 604/153, 604/27, 604/34, 251/7, 251/4, 251/9, 251/10, 251/6
• US Class Current: 604/250
• CPC Class Codes: A61M 2205/12 with interchangeable cassettes forming partially or totally the fluid circuit
• CPC Class Codes: A61M 27/006 Cerebrospinal drainage; Accessories therefor, e.g. valves

Abstract

The invention relates to devices for draining biological fluids. A first device comprises a housing (2) and a pinch valve (3) mounted in the housing, away from the walls of the latter. The housing includes an opening (11) arranged opposite the pinching means (6) of the valve. Another device (13) comprises a catheter section (7) of a drainage line and a member (12) for supporting the catheter, the catheter section passing into and emerging from the support member (12) at two points and forming a loop between these two points.

Claims

1. Device (13) for draining biological fluid characterized in that is comprises a catheter section (7) of a drainage line and a member (12) for supporting the catheter, said catheter section (7) passing into and emerging from the support member (12) at two points and forming a loop (19) between the two points, said member for supporting the catheter having a cut-away (21) leaving a part (22) of said loop free in order to allow it to be pinched by pinching means wherein said member (12) for supporting the catheter forms a flat cassette, designed to be introduced into a slot (11) in the said pinching means.

2. Device according to claim 1, in which the said cassette is T-shaped, the said catheter passing into and emerging from the cassette at the ends of the horizontal bar of the T, and forming the said loop in the vertical branch of the T.

3. Device according to claim 2, in which the said loop forms a catheter part separate from an inlet part (17) and from an outlet part (18), which is joined in the said catheter support to the said inlet and outlet parts.

4. Device according to claim 2, in which the said loop forms a catheter part separate from an inlet part (17) and from an outlet part (18), which is joined in the said catheter support to the said inlet and outlet parts.

5. Device according to claim 1 wherein said cassette is formed from first and second elements joined together to define a space for receiving the catheter.

6. Device according to claim 1 wherein said support member (12) is T shaped and wherein said cut-away is formed in a vertical branch of the T.

7. Device (13) for draining biological fluid characterized in that is comprises a catheter section (7) of a drainage line and a member (12) for supporting the catheter, said catheter section (7) passing into and emerging from the support member (12) at two points and forming a loop (19) between the two points, said member for supporting the catheter having a cut-away (21) leaving a part (22) of said loop free in order to allow it to be pinched by pinching means, said member (12) for supporting the catheter comprising elastic means (23) for immobilizing the catheter in relation to the pinching means and forming a flat cassette, designed to be introduced into a slot (11) in the said pinching means.

8. Device (13) for draining biological fluid characterized in that is comprises a catheter section (7) of a drainage line and a member (12) for supporting the catheter, said catheter section (7) passing into and emerging from the support member (12) at two points and forming a loop (19) between the two points, said member for supporting the catheter having a cut-away (21) leaving a part (22) of said loop free in order to allow it to be pinched by pinching means, wherein said member (12) for supporting the catheter comprises elastic means (23) for immobilizing the catheter in relation to said pinching means and said loop forms a catheter part separate from an inlet part (17) and from an outlet part (18), which is joined in the said catheter support to the said inlet and outlet parts.