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Valve clamping device

A clamping device and valve technology, applied in heart valves, medical science, surgery, etc., can solve the problems of complex structure and inconvenient operation, and achieve the effect of convenient operation and simple structure

Active Publication Date: 2017-03-15
LIFETECH SCIENTIFIC (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a valve clamping device that can avoid the above defects in view of the defects of complex structure and inconvenient operation of the mitral valve repair device in the prior art

Method used

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Examples

Experimental program
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Effect test

Embodiment 2

[0081] Figure 18 and Figure 19 Shown is a valve holding device 100a according to a second embodiment of the present invention. The valve clamping device 100a is substantially the same as the valve clamping device 100 in the first embodiment, which includes a support part 10a, a main body part 20a, a clamping part 30a, and a driving part 40a. The clamping portion 30a includes two clamping pieces 31a oppositely disposed on two sides of the main body portion 20a, and the clamping pieces 31a are provided with connecting rods 316a. The driving part 40a includes a closing unit 41a and an opening unit 42a.

[0082] The difference is that the closing unit 41a in this embodiment (such as Figure 20 As shown) adopts "V" shaped shrapnel, which is made of alloy with superelastic shape memory function, such as nickel-titanium alloy. The elastic piece includes two second spring arms 412a extending in the same direction. Each second spring arm 412a includes a second straight arm segme...

Embodiment 3

[0085] see Figure 21 , the valve clamping device 100b of the third embodiment of the present invention is substantially the same as the valve clamping device 100a in the first embodiment, which includes a support part 10b, a main body part 20b, a clamping part 30b, and a driving Section 40b. The support portion 10b includes two opposite first ends 11b and second ends 12b. The clamping portion 30b includes two clamping pieces 31b oppositely disposed on two sides of the main body portion 20b. The driving part 40b includes a closing unit 41b and an opening unit 42b.

[0086] see Figure 22 , the closing unit 41b is a torsion spring, which includes a spring body 411b and first spring arms 412b extending from two opposite ends of the spring body 411b; The arm 412b includes a first straight arm section 413b extending tangentially from the end of the spring body 411b and a first coil body 414b formed by helically winding the end of the first straight arm section 413b away from t...

Embodiment 4

[0090] see Figure 23 , the valve clamping device 100c of the fourth embodiment of the present invention is substantially the same as the valve clamping device 100b in the second embodiment, which includes a support part 10c, a main body part 20c, a clamping part 30c, and a driving part 40c. The supporting portion 10c includes two opposite first ends 11c and second ends 12c, and the clamping portion 30c includes two clamping pieces 31c disposed on opposite sides of the main body 20c. The driving part 40c includes a closing unit 41c and an opening unit 42c.

[0091] The closing unit 41c adopts a "V"-shaped shrapnel, which is made of an alloy with a superelastic shape memory function, such as nickel-titanium alloy. The elastic piece includes two second spring arms 412c extending in the same direction. Each second spring arm 412c includes a second straight arm segment 413c, and a second ring body 414c formed by helically winding from one end of the second straight arm segment ...

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Abstract

The invention discloses a valve clamping device comprising a support part, a main body part and a clamping part. The support part is provided with a first end; one end of the main body part is connected with the first end and the other end surrounds the support part. The clamping part surrounds the outer side of the main body part and can be radially unfolded or folded with respect to the main body part and with the first end as the center. The valve clamping device of the embodiment of the invention has simple structure and is convenient to use.

Description

technical field [0001] The invention relates to a tissue repair instrument in a human body, more specifically, to a heart valve clamping device. Background technique [0002] Mitral regurgitation is characterized by the reverse flow of blood from the left ventricle of the heart into the left atrium through the incompetent mitral valve. During the normal cycle of heart contraction (systole), the mitral valve acts as a check valve to prevent oxygenated blood from flowing back into the left atrium. In this way, oxygenated blood is pumped through the aortic valve into the aorta. Valve regurgitation can significantly reduce the heart's pumping efficiency, putting patients at risk for severe, progressive heart failure. [0003] The most common treatment for mitral regurgitation relies on valve replacement or repair, including remodeling of the leaflets and annulus, the latter commonly referred to as annuloplasty. Mitral valve repair relies on the latest technique of suturing ad...

Claims

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Application Information

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IPC IPC(8): A61F2/24
CPCA61B17/00234A61B2017/00243A61F2/246A61F2/2466
Inventor 刘香东
Owner LIFETECH SCIENTIFIC (SHENZHEN) CO LTD
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