Belt with detachable bladder for cardiopulmonary resuscitation and circulatory assist

• US 7,104,967 B2
• Filed: 03/18/2005
• Issued: 09/12/2006
• Est. Priority Date: 03/15/1995
• Status: Expired due to Fees

• Current Assignee: Zoll Circulation Incorporated (Asahi Kasei Corporation)
• Original Assignee: Zoll Circulation Incorporated (Asahi Kasei Corporation)
• Inventors: Gelfand, Mark, Rothman, Neil S.
• Primary Examiner(s): DEMILLE, DANTON D
• Application Number:
  US11/084,823
• Publication Number:
  US 20050165333A1
• Time in Patent Office: 543 Days
• Field of Search: 601/41, 601/44, 601/148, 601/152, 606/202, 606/203
• US Class Current: 601/41
• CPC Class Codes: A61H 2031/003 with alternated thorax decompression due to lateral compression
• CPC Class Codes: A61H 2201/0103 inflatable
• CPC Class Codes: A61H 2201/1238 with hydraulic or pneumatic drive
• CPC Class Codes: A61H 2201/165 Wearable interfaces
• CPC Class Codes: A61H 31/00 Artificial respiration or heart stimulation, e.g. heart massage artificial respiration by treatment with gas or air, e.g. mouth-to-mouth respiration A61M16/00; applying electric currents by contact electrodes for stimulation, e.g. heart pace-makers A61N1/36 ; teaching or training models, demonstration models for medical purposes G09B23/288
• CPC Class Codes: A61H 31/006 Power driven
• CPC Class Codes: A61H 9/0078 with intermittent or alternately inflated bladders or cuffs mattresses for preventing bed-sores with alternated pressurized chambers A61G7/05776
• CPC Class Codes: Y10S 601/07 Inflatable

Abstract

An inflatable vest design for cardiopulmonary resuscitation (CPR) and for cardiac assist. The vest may include a belt that wraps around the chest of a patient, and a removable bladder that is placed against the chest and held in place by the belt. The inflatable bladder expands radially to first conform to a patient'"'"'s chest, and to apply circumferential pressure to the thorax of the patient. By cyclically inflating the bladder, the vest can be used in CPR and cardiac assist treatments. In addition, alternative vest designs are disclosed showing removable bladders. These vest improvements lower the energy consumption and make smaller and portable cardiopulmonary resuscitation systems more practical.

Claims

1. An inflatable vest to circumferentially fit around a patient comprising:

a belt of inextensible material sized to fit circumferentially around the patient with a width to cover a substantial portion of a chest of the patient, having an inner surface facing toward the chest, and having an aperture sized to receive a connector post of a removable bladder;

a removable bladder secured to said belt, said removable bladder having a connector post mounted thereon to form a gas passageway into the bladder, said connector post adapted to penetrate the aperture and connect to a pneumatic hose;

wherein the bladder has a bladder width greater than a width of the belt and is sized and dimensioned to compress the chest of a patient to a sufficient depth to perform CPR when the bladder is filled.

2. The vest of claim 1, wherein the bladder comprises a nylon fabric double coated with polyurethane.

3. The vest of claim 1, wherein the width of the bladder is at least two inches greater than the width of the belt where the belt overlaps the bladder.

4. The vest of claim 1 further comprising a sleeve attached to the bladder and where said sleeve forms an opening to receive the belt.

5. The vest of claim 1 further comprising a pair of loop bands attached to the bladder and where each of said loop bands forms an opening to receive the belt.