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Pre-positioning device of implantation instrument for cardiac surgery and surgical assembly

A pre-positioning device and heart surgery technology, applied in the field of medical equipment, can solve problems such as inability to accurately and stably position

Pending Publication Date: 2021-06-08
NINGBO JENSCARE BIOTECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] According to an embodiment in the application of heart aortic valve surgery, the present invention can provide a pre-positioning device for implanted instruments for heart surgery for patients with aortic valve insufficiency who need interventional therapy, so as to solve the problem of aortic valve surgery. The problem of inaccurate and stable positioning of valve prosthesis when it is released, and can reduce paravalvular leak and central regurgitation

Method used

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  • Pre-positioning device of implantation instrument for cardiac surgery and surgical assembly
  • Pre-positioning device of implantation instrument for cardiac surgery and surgical assembly
  • Pre-positioning device of implantation instrument for cardiac surgery and surgical assembly

Examples

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Effect test

Embodiment 1

[0072] In this embodiment, taking the treatment of aortic valve disease as an example, a pre-positioning device for implanted instruments used in cardiac surgery, the pre-positioning device 1 includes a generally cylindrical main body 14, the cardiac surgery includes surgical components, surgical components including delivery systems such as Figure 1a~1c As shown, the delivery system includes a control handle 3, an outer sheath tube 4, an inner tube 5, an inner core tube 6, and a control release device 61. The implantation instrument is a balloon expandable stent 2, and the inner core tube 6 is connected to the control release device 61. The pre-positioning device 1 is located between the inner tube 5 and the outer sheath 4, and is located at the distal portion of the inner tube 5. The proximal end of the pre-positioning device 1 and the distal end of the control release device 61 form a detachable connection through a control wire. The inner tube 5 A balloon catheter 22 is ar...

Embodiment 2

[0091] In this embodiment, taking the treatment of aortic valve disease as an example, a pre-positioning device for implanted instruments used in cardiac surgery, the cardiac surgery includes surgical components, and the surgical components include delivery systems, such as Figure 7a with 7b As shown, the pre-positioning device includes a substantially cylindrical body 14, and the delivery system includes a control handle 3, an outer sheath tube 4, a lumen tube 62, an inner tube 5, a transmission tube 63 and a connecting device 64, and the lumen tube 62 is located in the inner tube. Between the tube 5 and the outer sheath tube 4, between the inner tube 5 and the lumen tube 62, an artificial valve support 9 is arranged. A pre-positioning device 1 is provided. The artificial valve support 9 is located at the proximal end of the pre-positioning device 1. The proximal end of the pre-positioning device 1 and the distal end of the artificial valve support 9 form a detachable connec...

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Abstract

The invention relates to the field of medical instruments, in particular to a pre-positioning device of an implantation instrument for cardiac surgery and a surgical assembly. The pre-positioning device comprises a substantially cylindrical body; wherein before the implantation instrument reaches an expected release position of the cardiac surgery, the pre-positioning device is in a state of incomplete radial expansion; and after the implantation instrument reaches the expected release position for the cardiac surgery, the pre-positioning device expands substantially simultaneously with the implantation instrument to a state of complete radial expansion.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a pre-positioning device and a surgical assembly for implanted devices used in heart surgery. Background technique [0002] At present, aortic valve stents mainly include mechanically expandable stents, balloon-expandable stents and self-expandable stents. After the release of mechanically expandable stents and balloon-expandable stents, the open area of ​​the valve is small, and accurate positioning cannot be performed, and the transvalvular pressure difference is large. ; Although the self-expandable stent has a small transvalvular pressure difference and a small conduction block after release, the coaxiality is poor after release, and precise positioning cannot be performed, which can easily cause problems such as paravalvular leakage and valve slippage. At present, most aortic valve stents are for patients with aortic valve stenosis, but for patients with aortic valve insuffici...

Claims

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Application Information

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IPC IPC(8): A61F2/24
CPCA61F2/2412A61F2/2418A61F2/2436A61F2/2439A61F2/2463A61F2/2466
Inventor 吕世文郑玲和李毅斌吴涛
Owner NINGBO JENSCARE BIOTECHNOLOGY CO LTD
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