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Cooling device for myocardial protection device

A cooling device and myocardial protection technology, applied in the field of medical devices, can solve the problems of complex myocardial protection strategies and other problems

Active Publication Date: 2018-09-28
BEIJING ANZHEN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Myocardial preservation strategies are further complicated by an aging patient population where high-risk patients who were once unindicated for surgery are now commonplace
In addition, all cardiac procedures can be a challenge, requiring surgeons to continually revise usual conservation strategies

Method used

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  • Cooling device for myocardial protection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The experimental methods used in the following examples are conventional methods unless otherwise specified.

[0019] The materials and reagents used in the following examples can be obtained from commercial sources unless otherwise specified.

[0020] Such as figure 1 As shown, it is a schematic diagram of the principle of rapid cooling of blood by the cooling device of the myocardial protection device of the present invention. The cooling device of the present invention includes a blood cooling pipeline, and the blood cooling pipeline is cooled by an ice-salt water mixture, and the ice-salt water mixture is placed in a constant temperature refrigerator to obtain an ice-salt water bath, that is, the blood cooling pipeline is cooled by using the ice-salt water bath Cooling, so that the heart-lung machine outputs blood or a mixture with crystals (that is, the crystal part of blood cardioplegia) to be cooled when it flows through the blood cooling circuit. When the mass...

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Abstract

The invention discloses a cooling device for myocardial preservation. The cooling device comprises a blood cooling pipeline. The blood cooling pipeline is cooled by coolant; the coolant is a brine ice mixture; the temperature of brine ice mixture is 18 to 21 DEG C; in the brine ice mixture, the salt massic volume concentration is 280 to 320g / L; and the coolant is arranged in a constant temperature refrigeration device. A technical problem that resistance force is increased due to increase of priming volume by the passive increase of the length of pipeline can be solved via changes of coolants; the brine ice mixture works as the coolant, which is easy to prepare and store, and has safe components; the temperature of the coolant can be greatly reduced; temperature-varying efficiency can be greatly increased; and a problem of priming volume and resistance increase can be solved.

Description

technical field [0001] The invention relates to a cooling device of a myocardial protection device, which belongs to the technical field of medical instruments. Background technique [0002] The goal of any heart surgery is to strengthen or maintain heart function. For this purpose, firstly, cardiac surgeons must avoid further unnecessary damage imposed on the heart, which requires a comprehensive myocardial protection strategy to guide preoperative, myocardial ischemic and post-ischemic management. Failure to achieve adequate myocardial protection at any stage will undo efforts made at other stages of the process, leading to myocardial damage and long-term permanent dysfunction. Myocardial preservation strategies are further complicated by an aging patient population where high-risk patients who were once not referred for surgery are now commonplace. In addition, all cardiac procedures can be a challenge, requiring surgeons to continually revise usual protective strategie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F7/12
CPCA61F7/12A61F2007/126
Inventor 侯晓彤贾在申李挺
Owner BEIJING ANZHEN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
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