DUAL BAG BLOOD PRESSURE CUFF

• US 3,752,148 A
• Filed: 06/13/1972
• Issued: 08/14/1973
• Est. Priority Date: 06/13/1972
• Status: Expired due to Term

• Current Assignee: Kontron Inc (Roche Holding AG)
• Original Assignee: Edwin Lewis Schmalzbach
• Inventors: Schmalzbach, Edwin Lewis
• Primary Examiner(s): Medbery, Aldrich F.
• Application Number:
  US05/262,425
• Time in Patent Office: 427 Days
• Field of Search: 128/2.5C,2.5G,87R,327
• US Class Current: 600/499
• CPC Class Codes: A61B 5/02233 Occluders specially adapted therefor tourniquets A61B17/132
• CPC Class Codes: Y10S 128/20 Inflatable splint

Abstract

An inflatable cuff for deriving blood pressure data by uniform vessel occlusion in all shape limbs to provide accurate compression comprising first and second inflatable bags positioned lengthwise in the cuff and in an overlying relationship within the cuff, the second bag being smaller than the first in its width dimension and distally positioned on the cuff, and the first and second bags connected so as to initially supply the second bag with a greater air pressure than that supplied to the first bag to anchor the cuff to the subject'"'"''"'"'s extremity and generate a uniform pressure compression pattern along the extremity length under the cuff.

Claims

1. An inflatable medical cuff adapted to encircle and constrict an extremity of a subject for deriving blood pressure data comprising:

first and second separately identifiable inflatable bag means positioned lengthwise along and to said cuff in an overlying relationship within the cuff, said second bag means being smaller than the first in its transverse dimension perpendiuclar to the lengthwise directIon;

said second bag means having a longitudinal centerline which is transversely offset relative to a longitudinal centerline of the first bag means enabling said second bag to be distally positioned transversely on the cuff;

air tube means for connecting said first and second bag means to each other and with a pressure source to initially supply the second bag means with a greater air pressure than that supplied to the first bag means.

2. An inflatable medical cuff according to claim 1 wherein said air tube connecting means is of a size to permit limited air flow between the bags.

3. An inflatable medical cuff according to claim 1 said second bag means having one longitudinal side substantially aligned with one longitudinal side of the first bag means.

4. An inflatable medical cuff according to claim 2 wherein said first and second bag means are contained in separate compartments.

5. An inflatable medical cuff according to claim 1 including attachment means at said second bag means for positioning a transducer on the cuff.