United States Patent [19] [ii] Patent Number: 4,570,615
Barkalow [45] Date of Patent: * Feb. 18, 1986
[54] CARDIOPULMONARY RESUSCITATOR MASSAGER PAD
[75] Inventor: Clare E. Barkalow, Comstock Park, Mich.
[73] Assignee: Michigan Instruments, Inc., Grand Rapids, Mich.
[ * ] Notice: The portion of the term of this patent subsequent to Nov. 30, 1999 has been disclaimed.
[21] Appl. No.: 429,808
[22] Filed: Sep. 30, 1982
Related U.S. Application Data
[63] Continuation-in-part of Ser. No. 126,878, Mar. 3, 1980, Pat. No. 4,361,140.
[51] Int. CI.4 A61H 31/00
[52] U.S. CI 128/28; 128/53
[58] Field of Search 128/28, 53, 54, 55,
128/60, 64, 67, 581, 582, 51, 52; 5/434, 441, 449; 297/DIG. 3
[56] References Cited
U.S. PATENT DOCUMENTS
3,374,783 3/1968 Hurvitz 128/51
3,461,860 8/1969 Barkalow 128/53
3,689,948 9/1972 Graves et al 5/449
3,970,076 7/1976 Hepp et al 128/64
4,059,099 11/1977 Davis 128/28
4,390,013 6/1983 Bartholomew 128/55
4,398,531 8/1983 Haustad 128/55
Primary Examiner—Richard J. Apley
Assistant Examiner—David J. Brown
Attorney, Agent, or Firm—Price, Heneveld, Huizenga &
Cooper
[57] ABSTRACT
A cardiopulmonary resuscitator massager pad is provided comprising a compressible, fluid filled nonisoelastic enclosure adapted for mounting on the reciprocal piston of a cardiopulmonary resuscitator. The massager pad includes means for restricting lateral expansion of the enclosure and a face, including means for evenly distributing the pressure of the fluid in the enclosure on the patient's chest.
16 Claims, 9 Drawing Figures
