Transcatheter heart valve clamping system

A heart valve and catheter technology, applied in the field of medical devices, can solve the problems of complicated operation and long implantation path, and achieve the effect of reducing the degree of trauma, convenient operation, and reducing the risk of surgery

A heart valve and catheter technology, applied in the field of medical devices, can solve the problems of complicated operation and long implantation path, and achieve the effect of reducing the degree of trauma, convenient operation, and reducing the risk of surgery

CN112274297APending Publication Date: 2021-01-29SHANGHAI SHAPE MEMORY ALLOY
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  • Transcatheter heart valve clamping system
  • Transcatheter heart valve clamping system
  • Transcatheter heart valve clamping system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0053] This embodiment provides a transcatheter heart valve clipping system, and takes the treatment of mitral valve regurgitation as an example to describe in detail. Use this as a basis.

[0054] See Figure 14 As shown, first place the heart valve clip 1 at the position of the left ventricle through the delivery system, then push the heart valve clip 1 to the top of the valve, expand the lower clamping arm 20 to a certain angle through the head-hanging sheath tube seat 4, and then move upward Push the heart valve clamp 1 so that the clamping arm 20 wraps around the valve leaflet from the ventricular surface, and then release the puller wire 50 through the tail end 2 of the puller wire, so that the upper clamping arm is unfolded and the valve leaflet is firmly pressed against the lower clamping arm 20 Above, after determining that the valve leaflet clamping position is appropriate and the reflux treatment effect is achieved, the lower clamping arm 20 is closed through the h...

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Abstract

The invention discloses a transcatheter heart valve clamping system, comprising a heart valve clamp part and a conveying system part, wherein a heart valve clamp comprises an upper clamping arm and alower clamping arm, and a conveying system comprises a conveying catheter and an operating handle. According to the system, a heart valve is fixed through mutual clamping between the upper clamping arm and the lower clamping arm; and the system has the advantages of being simple in structure, accurate in operation, completely recyclable and the like, and can be used for treating heart valve diseases such as mitral regurgitation and tricuspid regurgitation.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a transcatheter heart valve clipping system. Background technique [0002] With the development of society and the aging of the population, the incidence of mitral regurgitation (MR) is on the rise, and it has become a common heart valve disease. According to the pathogenesis, MR can be divided into primary (organic, 30%) and secondary (functional, 70%). According to the condition, MR can be divided into acute and chronic. Mild MR can have no clinical symptoms for a long time, and the prognosis is better. Severe MR can produce symptoms such as palpitations, chest tightness, and shortness of breath. Patients with acute severe MR are poorly tolerated and are prone to death. For chronic severe MR, the incidence of cardiovascular death and cardiovascular events in asymptomatic patients within 5 years is 14±3% and 33±3%, while those with severe heart failure (New York Hear...

Claims

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Application Information

Patent Timeline
29 Jan 2021
Publication
CN112274297A
IPC
A61F2/24
CPC
A61F2/2442; A61F2/246; A61F2/2466
Inventors
赵洋; 刘小建