Combination device for a computerized and enhanced type of external counterpulsation and extra-thoracic cardiac massage apparatus

• US 4,753,226 A
• Filed: 03/25/1986
• Issued: 06/28/1988
• Est. Priority Date: 04/01/1985
• Status: Expired due to Term

• Current Assignee: Vasogenics, Inc.
• Original Assignee: Biomedical Engineering Development Center of Sun Yat-Sen University of Medical Science
• Inventors: Wu, Yutian, Zheng, Zhen-Sheng
• Primary Examiner(s): NOT, DEFINED
• Assistant Examiner(s): Keegan, Timothy
• Application Number:
  US06/843,953
• Time in Patent Office: 826 Days
• Field of Search: 128/10 D, 128/20 D, 128/24 A, 128/24 R, 128/54, 128/64, 269/328
• US Class Current: 601/150
• 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 2201/5007 computer controlled
• CPC Class Codes: A61H 2205/08 Trunk
• CPC Class Codes: A61H 2230/04 Heartbeat characteristics, e.g. E.G.C., blood pressure modulation
• 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

Abstract

A combination device are provided for a microcomputerized and enhanced type of external counterpulsation and extrathoracic cardiac massage apparatus. In addition to balloons for the 4 limbs, the device also comprises a pair of lower-abdomen-buttock balloons and a chest balloon. It is controlled by microcomputer process. The various sets of balloons are sequentially inflated from the distal portion to the proximal portion during the diastolic period of the heart beat. The pressure is applied from the distal to the proximal portion gradually onto the 4 limbs, lower abdomen buttock and lower portion of the sternum. At the beginning of the cardiac systole all of the balloons deflate simultaneously. The cycle is then repeated. This device used for the treatment of diseases of the heart, the brain, the kidneys, the isohemic disease of the retina and the peripheral vascular disease with apparent curative effect. For those cases of sudden cardiac arrest, the computer gives orders according to need, so that the above-mentioned sets of balloons exert pressure sequentially from the distal portion to the proximal portion to force the blood to the adbomen, the chest and the head. Thereafter the device deflates suddenly, and then again the balloons sequentially inflate from the proximal portion to the distal portion to force blood back to the lower portion of the body. Thus the circulation goes on wavelike in succession to support adequate output as well as adequate cardiac blood inflow, and improves the effect of resuscitation.

Claims

1. Apparatus for external counterpulsation and extrathoracic cardiac massage comprising, in combination:

(a) an ECG amplifier;

(b) a pulse wave amplifier;

(c) a monitor;

(d) computer means connected to each of said amplifiers and operative in response to a signal to control a timing control means and the operating mode of said monitor in providing inflation/deflation control signals;

(e) timing control means for controlling distribution of a fluid from a source for inflation and deflation of a plurality of balloons place juxtaposed regions of the human body, said balloons including

(1) sets of balloons including two balloons placed symmetrically on the limbs including both the upper and lower limbs, thighs and lower abdomen-buttock regions, and

(2) a chest balloon, said chest balloon being housed in an opening of a casing made of soft material and formed as a cuff to be wrapped about the body;

(f) fluid distribution means for inflating said balloons including

(1) a reservoir providing said source of fluid,

(2) fluid line means including a number of individual fluid lines connecting with said reservoir and individual ones of said balloon and sets of balloons,

(3) a pump for pumping fluid from said reservoir into said fluid line means, and

(4) a first solenoid valve for control of each individual fluid line whereby during counterpulsation and extrathoracic cardiac massage each of said limb, thigh and lower abdomen-buttock balloons are sequentially inflated, followed by inflation of said client balloon to increase blood returning to the heart;

(5) a second solenoid valve for control of each individual fluid line for substantially simultaneous deflation of said balloon and sets of balloons after inflation, and

(6) a counterpulsation bed for the individual undergoing treatment.

2. The apparatus according to claim 1 wherein said timing control circuit operates according to the formula

3. The combination device according to claim 1, wherein said extrathoracic cardiac massage apparatus to house the chest balloon further includes a push board tightly placed underneath and a massage head fixed to the center of the push board bottom and both are wrapped within the bag.

4. The combination device according to claim 1, wherein said chest balloon when lying flat has a surface area of 100-300 cm on one side.

5. The combination device according to claim 4, wherein said chest balloon when inflated has an internal pressure of 0.35-0.50 kg/cm².

6. The combination device according to claim 1, wherein said counterpulsation bed is one specially made for counterpulsation and is designed in accordance with the normal physiological curvature of the body with respects to its concave and convex surface. The head of the bed can be raised and lowered, detachable supporting board is placed on the bed relative to the position of the back of a patient when lying down, and to each of the four corners of the board a tape is attached to fasten the hard massage apparatus which is to be placed right to the position of the lower end of patient'"'"'s sternum.

7. The combination device according to claim 6, wherein said counterpulsation bed has holes for the passage of pipes that connect inflation-deflation solenoid valves to their respective balloons.

8. The combination device according to claim 6 or 7, wherein said special counterpulsation bed is equipped with noise muffling hood.