Cooling device for myocardial preservation

A cooling device and myocardial protection technology, applied in the field of medical equipment, can solve problems such as complex myocardial protection strategies

Active Publication Date: 2017-10-17
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 preservation

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, reagents, etc. used in the following examples can be obtained from commercial sources unless otherwise specified.

[0020] like 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 comprises a blood cooling pipeline, the blood cooling pipeline is cooled by an ice-salt mixture, and the ice-salt mixture is placed in a constant temperature refrigerator to obtain an ice-salt bath, that is, the ice-salt bath is used to cool the blood cooling pipeline. Cooling, which in turn causes the heart-lung machine output blood or the mixture with crystals (ie, the crystalloid portion of the cardioplegia) to be cooled as it flows through the blood cooling circuit. When the mass volume concentra...

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PUM

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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, belonging to the technical field of medical devices. Background technique [0002] The purpose of any heart surgery is to strengthen or maintain heart function. For this purpose, firstly, cardiac surgeons must avoid more unnecessary damage imposed on the heart, which requires a comprehensive cardioprotective strategy to guide preoperative, myocardial ischemia, and postischemic management. Inadequate myocardial protection at any time will negate the efforts made at other stages of the process, resulting in myocardial damage and long-term dysfunction. Due to the aging patient population, it is now commonplace to refer to high-risk patients without surgery, further complicating cardioprotection strategies. Furthermore, all cardiac surgery can be a challenge, requiring the surgeon to continually revise the usual protective strategies. Therefore, a thorough understanding of the ...

Claims

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Application Information

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Patent Type & Authority Applications(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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