Blood pressure cuff and hose fitting therefor

• US 5,179,957 A
• Filed: 12/11/1990
• Issued: 01/19/1993
• Est. Priority Date: 12/11/1990
• Status: Expired due to Fees

• Current Assignee: Cas Medical Systems Incorporated (Edwards Lifesciences Corporation)
• Original Assignee: Cas Medical Systems Incorporated (Edwards Lifesciences Corporation)
• Inventors: Williams, Michael
• Primary Examiner(s): Cohen, Lee S.
• Assistant Examiner(s): Pontius, Kevin
• Application Number:
  US07/625,816
• Time in Patent Office: 770 Days
• Field of Search: 128/677, 128/686, 128/DIG. 20, 606/202
• US Class Current: 600/499
• CPC Class Codes: A61B 5/02233 Occluders specially adapted therefor tourniquets A61B17/132

Abstract

A polyurethane coated nylon sheet is folded medially to form the pressure cuff. The urethane coated surface forms the inner surface of the inflation chamber of the cuff. A hook and loop fastener assembly for securing the cuff about the patient'"'"'s limb is secured to the cuff. The hook and loop sheets are both provided with fusable polymer back coatings. The hook and loop sheets are fused to the polyurethane coated surfaces on the cuff. The hooks and loops are accessible on opposite sides of the cuff. An inflation fitting is also fused to the interior of the pressure chamber and projects through an opening in the cuff.

Claims

1. An inflatable blood pressure cuff formed from a woven fabric sheet having one surface thereof coated with a fusable polymer to render the fabric impermeable to air, said coated surface forming the interior of the cuff, and said sheet being folded about a medial fold line to bring said coated surface into contact with itself, said cuff including an inflatable chamber bounded by said medial fold line and by edges of said coated surface which are fused together;

and a one piece molded air hose fitting formed from said fusable polymer, said fitting comprising a pair of adjacent tubular hose connections, and a basal flange completely surrounding both of said hose connections, said flange being fused to said said polymer coating in said inflatable chamber, with said hose connections projecting through adjacent openings in said sheet to access said chamber to external inflation/deflation and pulse sensing hoses.

2. The blood pressure cuff of claim 1 wherein said adjacent openings are disposed on said medial fold line.

3. The blood pressure cuff of claim 2 wherein said basal flange includes an opening therein midway between said tubular connections operable to weaken said flange whereby said tubular connections can be separated into two identical fittings each having one tubular connection and a basal flange.

4. A blood pressure cuff fitting for connecting a blood pressure cuff to a pair of hoses, said fitting being formed from a molded fusable polymer and including a pair of adjacent tubular hose connections and a basal flange integral with and completely surrounding both of said hose connections, said flange having an opening formed therein midway between said hose connections, said opening weakening said flange sufficiently to allow said fitting to be easily separated into two like fittings, each with a hose connection and a basal flange.