Realization of Automatic Measurement and Bionic Control of Rotary Heart Pumps

نویسندگان

  • K. X. Qian
  • T. Jing
  • L. Li
چکیده

AbstractThe comfortability of the receiptor with a left ventricular assist pump becomes more and more important along with the daily prolonged survival. Thereby it is necessary to achieve automatic measurement and bionic control for heart pump. The key-point is to improve the sensitivity of flow rate change after the pressure head variation in the pump, so as to maintain the flow rate balance between the left ventricular assist pump and the natural right ventricle. This paper presents the measurement of the pump flow and head by computation from motor driving parameters, and the control of the pump imitating the natural ventricle, much more sensitive than available constant voltage and constant RPM control.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Developments in control systems for rotary left ventricular assist devices for heart failure patients: a review.

From the moment of creation to the moment of death, the heart works tirelessly to circulate blood, being a critical organ to sustain life. As a non-stopping pumping machine, it operates continuously to pump blood through our bodies to supply all cells with oxygen and necessary nutrients. When the heart fails, the supplement of blood to the body's organs to meet metabolic demands will deteriorat...

متن کامل

Axial and centrifugal continuous-flow rotary pumps: a translation from pump mechanics to clinical practice.

The recent success of continuous-flow circulatory support devices has led to the growing acceptance of these devices as a viable therapeutic option for end-stage heart failure patients who are not responsive to current pharmacologic and electrophysiologic therapies. This article defines and clarifies the major classification of these pumps as axial or centrifugal continuous-flow devices by disc...

متن کامل

· Technical note Design of a PLC system for automatic I-123 production

 ABSTRACTBackground: Design of the production system for Iodine-123 has begun recently in nuclear research centre of agricultural and medicine (NRCAM). The production system consists of pipes for xenon gas transfer, equipped with 10 valves, 3 heaters, fluid nitrogen and 2 vacuum pumps. In the first prototype the function of elements was being done manually by an operator. Because dispensing rad...

متن کامل

Sensorless Physiological Control of Implantable Rotary Blood Pumps for Heart Failure Patients Using Modern Control Techniques

The most common type of heart disease is left ventricular heart failure (HF). It usually occurs due to excessive load on the left ventricle (LV) as a result of the systemic circulatory insufficiencies and deprivation of oxygen rich blood to the cardiac muscle by narrowed coronary arteries. Sufferers of this disease have a life expectancy of one year and heart transplantation is usually the only...

متن کامل

Implantation of rotary blood pumps into 115 patients: a single-centre experience.

OBJECTIVES From 2004 to 2009, rotary blood pumps were implanted for heart failure as a bridge to transplant or destination therapy in 101 male and 14 female patients at our institution. We report on our experiences of these patients with a follow-up of 132 patient years. METHODS Seventy-four HeartMate II axial flow pumps and 41 HeartWare centrifugal pumps were implanted in patients with non-i...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2010