A kind of rca control system and rca target control infusion pump
A control system and infusion pump technology, applied in the field of medical devices, can solve problems such as limited scope of application, inaccurate calculation results, lack of ability to correct blood calcium in patients with abnormal blood calcium levels, and achieve wide application and important clinical guidance meaning effect
Active Publication Date: 2021-12-24
上海市松江区中心医院
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Problems solved by technology
[0012] The purpose of the present invention is to overcome the shortcomings of the need to frequently adjust the infusion rate of sodium citrate and calcium supplements according to the test results in the existing RCA (local sodium citrate anticoagulant) technology, and solve the scope of application that exists in the current mathematical model To solve many problems such as limitations, inaccurate calculation results and lack of ability to correct blood calcium in patients with abnormal blood calcium levels, an RCA control system and an RCA target-controlled infusion pump are provided.
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[0046] The present invention will be further described below in combination with specific embodiments. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.
[0047] The present invention constructs a general mathematical model of RCA that can be applied to three modes of CVVH, CVVHD, and CVVHDF, which includes 3 equations, which are used to calculate the calcium infusion rate Ca in , Sodium citrate infusion rate Cit in , Calcium balance value d Ca ,,details as follows:
[0048] Cit in =[f blood ×t×(1-Hct)×Ca blood +f pre ×Ca liquid ]×k cit ÷[Cit];
[0049] In the fo...
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The present invention relates to a local sodium citrate anticoagulation (RCA) control system and an RCA target-controlled infusion pump. The RCA control system is suitable for continuous renal replacement therapy (CRRT) process and includes a first peristaltic pump speed calculation module And the second peristaltic pump speed calculation module, the first peristaltic pump speed calculation module is used to calculate the infusion rate of sodium citrate, the second peristaltic pump speed calculation module is used to calculate the infusion rate of calcium supplementation drugs, and the RCA target-controlled infusion The injection pump includes a control module and a first peristaltic pump and a second peristaltic pump respectively connected thereto, and the control module includes an RCA control system. The RCA control system of the present invention can accurately calculate the doses of sodium citrate and calcium supplementation drugs required under different settings, and maintain sufficient anticoagulation of the filter part and stable blood calcium level of the patient. The RCA target-controlled infusion pump of the present invention can automatically adjust the dosage of calcium supplementation medicine and sodium citrate according to the change of blood purification machine settings.
Description
technical field [0001] The invention belongs to the technical field of medical devices and relates to an RCA control system and an RCA target-controlled infusion pump. Background technique [0002] Continuous renal replacement therapy (CRRT) is one of the most important means of support in intensive care medicine. RCA not only avoids the risks of bleeding and thrombocytopenia caused by heparin anticoagulation, but also reduces the activation of coagulation factors and inflammatory factors in the body. In 2012, the Global Organization for Improving the Prognosis of Renal Diseases recommended RCA as the preferred anticoagulant method for CRRT in patients with acute kidney injury. But there are still some problems in the current RCA application. [0003] At present, the clinical use of RCA is still very limited, mainly because the operation is complicated, and the ionized calcium (ionized calcium, iCa) level needs to be frequently monitored in clinical use to maintain blood c...
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IPC IPC(8): A61M1/16A61M5/142
CPCA61M1/1601A61M2005/14288
Inventor 王学敏盛阮妹王海燕
Owner 上海市松江区中心医院