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Cardiac volume reduction system

A technology of the heart and guidance system, applied in the medical field, can solve the problems of large surgical trauma, limited surgical operation, and high requirements for clinical application of surgeons, and achieve good pushing ability, lower ventricular tension, convenient operation and exit from the heart. Effect

Inactive Publication Date: 2016-11-09
苏州莱诺医疗器械有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the left ventricular volume reduction surgery has a history of more than 50 years, the surgical trauma is relatively large, and the high requirements for the surgeon limit the clinical application

Method used

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Embodiment Construction

[0023] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0024] See attached Figure 1-5 As shown, a heart volume reduction system in this embodiment includes a volume reduction device 1, and the volume reduction device 1 includes a multi-rod skeleton 7. The multi-rod skeleton 7 is made of a self-expandable nickel-titanium alloy material. The skeleton 7 is composed of a plurality of support ribs 3, the number of support ribs 3 is 12-25, and the fixed angle between every two support ribs 3 is 15°-30°, each support rib 3 top is formed with a length of 1.5- The barb 6 of 3 mm, the top of the support rib 3 is turned outward along the surroundings to form a basin shape with a diameter of 60-120 mm, the top ...

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Abstract

The present invention discloses a cardiac volume reduction system and a guidance system; the volume reduction system comprises a multi-rod frame that is composed of a plurality of support ribs; the top of each support rib is provided with a barb, the tops of the support ribs are peripherally turned out to form a basin shape, the surface of each support rib is covered with polymer separator film, a support base is fixed to the bottom of the multi-rod frame, the guidance system includes a metal rod and a protective sleeve that are integrated, the protective sleeve sleeves the metal rod, the metal rod can slide back and forth in the protective sleeve, the top of the metal rod is connected with a support base, the support base is made from thermoplastic polyurethane elastomer, the metal rod can drive the support base and the multi-rod frame to slide into the protective sleeve. By receiving a volume reduction apparatus in the guidance system and piercing through the surface of the left ventricle with the guidance system, the cardiac volume reduction system is delivered into a human heart and implanted in the heart; through separation of the volume reduction apparatus, ventricular volume is reduced, ventricular tension is reduced, and ventricular reconstitution and a patient's cardiac functionality are improved.

Description

technical field [0001] The invention relates to the medical field, in particular to a medical heart volume reduction system. Background technique [0002] Heart failure has become a global health burden. At present, there are about 26 million heart failure patients worldwide, with a prevalence rate of 1-2%. The prevalence of heart failure in people over 70 years old in European and American countries is ≥10%. 74% of heart failure patients have at least one comorbidity in the course of the disease, and such patients are more prone to disease exacerbation, leading to high rehospitalization rates and mortality. The prognosis of advanced heart failure is worse than that of some solid tumors and myocardial infarction, and the 5-year survival rate of severe cases is less than 20%. Heart failure also poses a huge economic burden to society. [0003] In recent years, more and more clinical attention has been paid to it. The main reason is that it has become one of the leading cau...

Claims

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Application Information

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IPC IPC(8): A61F2/24A61B17/00
CPCA61F2/2487A61B17/0057A61B2017/00575A61F2230/0093
Inventor 关丽鹃钱永巍周叶
Owner 苏州莱诺医疗器械有限公司
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