NDLI: Progranmable Pneumatic Generator for Manipulation of Intrathoracic Pressure

Content Provider	IEEE Xplore Digital Library
Author	Halperin, Henry R. Tsitlik, Joshua E.
Copyright Year	1964
Abstract	The determination that blood can move during cardiopulmonary resuscitation because of imposed changes in intrathoracic pressure has led to the construction and testing of mechanical devices for increasing intrathoracic pressure fluctuations over those obtained by manual means. These mechanical systems have required high-pressure ventilation simultaneous with compression of the chest to augment blood flow. Their usefulness has been limited, however, because of the requirement for endotracheal intubation and complex devices. Similar systems have also been used to generate intrathoracic pressure changes timed to the cardiac cycle to aid the failing, but beating, heart. A system was developed that can produce high intrathoracic pressure without simultaneous ventilation by using a vest that is placed around the thorax. The vest contains a bladder that is rapidly inflated and deflated by the programmable pneumatic generator. Air flows into and out of the bladder by the proper sequencing of large-bore three-way and two-way solenoid valves that are connected in series. A microcomputer-based controller is used to sequence the valves. The programmable pneumatic generator inflates the bladder more rapidly and to higher pressures than previous systems. The programmable pneumatic generator has been used in studies of cardiopulmonary resuscitation (heart arrested) and circulatory assistance (heart beating, but function depressed).
Sponsorship	IEEE Engineering in Medicine and Biology Society
Page Count	5
File Size	2459407
Starting Page	738
Ending Page	742
File Format	PDF
ISSN	00189294
Volume Number	BME-34
Issue Number	9
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1987-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bladder Cardiology Ventilation Heart Valves Testing Fluctuations Mechanical systems Blood flow Thorax
Content Type	Text
Resource Type	Article
Subject	Biomedical Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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