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System, computer system and computer program for determining cardiovascular parameter

A computer system and vascular system technology, applied in the system field of cardiovascular parameters, can solve the problems of limited, difficult, and limited value in detailed evaluation, and achieve the effects of improving coupling, improving accuracy, and improving accuracy and reliability.

Pending Publication Date: 2021-11-19
PULSION MEDICAL SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, close monitoring of hemodynamic function is required, however, this is a challenge in critically ill patients receiving extracorporeal blood management, especially ECMO
After ECMO cannulation is in place, pulmonary artery catheterization or routine monitoring using transpulmonary thermodilution (TPTD), such as by Picco monitoring, is difficult and may be of limited value
Physiological indicators such as blood pressure, urine output, and extremity examination are valuable data for functional hemodynamic monitoring; however, they are limited in the detailed assessment of hemodynamic status required during ECMO

Method used

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  • System, computer system and computer program for determining cardiovascular parameter
  • System, computer system and computer program for determining cardiovascular parameter

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Embodiment Construction

[0030] figure 1 A schematic overview of the cooperation of the system according to the invention with an extracorporeal blood treatment device (ECBTD) is shown. As an example of ECBTD, figure 1 Depicted is an extracorporeal membrane oxygenator (ECMO) connected to a patient's circulatory system in a veno-venous configuration (vvECMO). The efferent line (11) directs deoxygenated blood from the inferior vena cava to the ECMO device, and the afferent line (12) returns oxygenated blood to the patient's circulatory system via the superior vena cava. Typically, the two major veins are accessed by cannulating the patient's femoral vein. ECMO can also be set up in other configurations, such as veno-arterial (vaECMO) or arteriovenous (avECMO). The ECMO comprises a pump (13) and a flow sensor (18) arranged in a first circuit between an incoming line (11) and an outgoing line (12). The system comprises a second circuit filled with liquid, which is thermally connected to the first circ...

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Abstract

The invention relates to a system for determining a cardiovascular parameter in a patient, wherein the system is adapted to work in conjunction with an extracorporeal blood treatment device (ECBTD) connectable to a patient's vascular system, wherein the ECBTD comprises a first circuit, the system comprising: a liquid-filled, second circuit thermally connected to the first circuit of the ECBTD via a heat exchanger, temperature changing means for generating a temperature change in the second circuit, temperature sensors TS2up and TS2down arranged in the second circuit upstream and downstream of the heat exchanger, respectively. A computer system connected to the temperature sensors and the temperature changing means is adapted to induce a temperature bolus within the first circuit of the ECBTD via the temperature changing means. From the individual temperature recorded as a function of time, temperature curves T2up(t) and T2down(t) are derived and evaluated.

Description

technical field [0001] The present invention relates to a system for determining cardiovascular parameters of a patient according to claim 1, a method according to claim 16, a computer system and a computer readable storage medium according to claims 18 and 19 respectively, wherein The system is adapted to cooperate with extracorporeal blood treatment equipment. Background technique [0002] Extracorporeal blood treatment is indicated for a variety of conditions in patients, for example, hemodialysis in kidney and liver diseases, and in the treatment of severe lung diseases (acute respiratory distress syndrome, ARDS) and heart failure (myocardial infarction, severe arrhythmias) In vitro decarboxylation / membrane oxygenation (ECMO). For example, extracorporeal membrane oxygenation is considered the standard therapy for stabilizing respiratory function and / or cardiovascular circulation in ARDS patients with severe life-threatening hypoxemia. Performing ECMO requires cannulati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G16H50/30A61M1/16
CPCA61M1/1698G16H50/30A61M2205/3368A61M1/3609A61M1/1617G16H40/63A61M1/3623
Inventor 谢尔盖·卡默策尔马克·康拉德马尔滕·威廉·尼古拉斯·奈斯滕
Owner PULSION MEDICAL SYST