0
We're unable to sign you in at this time. Please try again in a few minutes.
Retry
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
Retry
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
ARTICLE |

AN ADAPTATION OF THE ERLANGER CAPSULE TO ANY POLYGRAPH FOR OBTAINING . ARTERIAL PULSE RECORDS

ROBERT H. HALSEY, M.D.
Arch Intern Med (Chic). 1916;XVII(4):540-542. doi:10.1001/archinte.1916.00080100084008.
Text Size: A A A
Published online

It is now generally recognized that to understand properly the action of the heart it is necessary to employ mechanical instruments which register for comparison the simultaneous events in its various chambers.

For the recording of events in the cardiac cycle two types of instruments have been devised : one, for recording the ventricular contraction, depends on the application to the artery at the wrist of a metal piece or knob of a tambour ; the other depends on the application of a rubber cuff or armlet encircling the arm, attached to which is a hollow rubber ball of sufficient resilience to transmit the variations of pressure to the air within a surrounding glass sphere connected with a writing tambour. By this latter method, and a careful regulation of the pressure within the closed system so that it shall be maintained at a constant level between the diastolic

Topics

Sign in

Create a free personal account to sign up for alerts, share articles, and more.

Purchase Options

• Buy this article
• Subscribe to the journal

First Page Preview

View Large
First page PDF preview

Figures

Tables

References

Correspondence

CME
Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.
Submit a Comment

Multimedia

Some tools below are only available to our subscribers or users with an online account.

Sign in

Create a free personal account to sign up for alerts, share articles, and more.

Purchase Options

• Buy this article
• Subscribe to the journal

Related Content

Customize your page view by dragging & repositioning the boxes below.

Jobs
brightcove.createExperiences();