Expandable sheath tube and conveying device

A sheath tube and sheath tube holder technology, which is applied in the field of medical devices, can solve the problems of long recovery time for patients and easy induction of other lesions.

Pending Publication Date: 2021-07-06
赛诺心畅医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the pericardium and myocardial tissue are opened according to the diameter of the sheath tube. After instrument implantation or valve repair is completed, the myocardium and pericardial tissue still need to be sutured. However, if the wound is large, the patient’s surgical The recovery time is longer and it is easy to induce other lesions

Method used

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  • Expandable sheath tube and conveying device
  • Expandable sheath tube and conveying device
  • Expandable sheath tube and conveying device

Examples

Experimental program
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Effect test

Embodiment 1

[0053] The expandable sheath provided in this embodiment, such as figure 1 As shown, it includes a tube body 1, a puncture needle 2 and a hemostatic assembly; the tube body 1 has a first cavity for conducting, and the tube body 1 has a contracted state and an expanded state; at the beginning, the tube body 1, In the state of radial contraction, cut the opening on the myocardium to allow the tube body 1 in the radial contraction state to enter; enter through the tip of the puncture needle 2, and enter with the tube body 1. When in use, put the tube body 1 The body 1 expands from the contracted state to the expanded state in the form of a circular channel, which is convenient for use;

[0054]During the doctor's use, the sheath enters the myocardial incision in a state of radial contraction, which allows the doctor to reduce the myocardial incision during the surgical intervention, thereby reducing the patient's postoperative recovery time and corresponding complications. Reduc...

Embodiment 2

[0065] A delivery device provided in this embodiment includes the expandable sheath described in Embodiment 1. At the same time, the delivery device also includes a balloon assembly for dilating the sheath; Figure 12 As shown, the balloon assembly includes a high-pressure balloon 12, the high-pressure balloon 12 has an inflatable cavity for containing gas, one end of the inflatable cavity is connected with an outer tube 13, and the other end of the outer tube 13 is connected with a handle 14, which also has The tip is connected with the inflation cavity of the high-pressure balloon and the cavity of the inner tube, and plays the role of the end of the puncture needle.

[0066] The designed purpose of the high pressure balloon 12 is to withdraw the puncture needle 2 after the sheath tube in the embodiment 1 enters the puncture position with the assistance of the puncture needle 2, and insert the high pressure balloon 12 into the first cavity of the folded tube body 1 , so tha...

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Abstract

The invention provides an expandable sheath tube and a conveying device, and belongs to the technical field of medical equipment. The expandable sheath tube comprises a tube body, the tube body is provided with a first cavity for conduction; the tube body has a contraction state of contracting in the radial direction in the insertion process, and also has an expansion state of forming a circular channel in the cavity in the use process; a puncture piece, the puncture piece is suitable for being arranged in the first cavity of the tube body in a penetrating manner; the puncture piece is provided with a tip, the tip extends out of the tube body for puncturing; a hemostasis assembly, the hemostasis assembly is arranged at the tail end of the tube body; and a silica gel gasket is arranged in the hemostasis assembly. According to the expandable sheath tube of the invention, in the using process of a doctor, the sheath tube enters a myocardial incision in the contraction state by contracting in the radial direction, which can enable the doctor to reduce the myocardial incision in the process of carrying out surgical interventional operation, so as to shorten postoperative recovery time, reduce corresponding complications and relieve pain of the patient.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an expandable sheath and a delivery device. Background technique [0002] The heart is a very important organ of the human body, which provides power for the blood circulation of the human body. The heart is divided into two parts, the left and the right. Each part contains a ventricle and an atrium. There are valves between the atria, ventricles, and arteries that prevent blood from flowing backward. Among them, the valve between the left atrium and the left ventricle is the mitral valve. When any structure of the mitral valve has a problem, it will cause valve disease. [0003] There are many means and methods for heart valve replacement or repair surgery; among them, surgical intervention has been widely carried out around the world, and its outstanding features are minimally invasive and safe. During surgical intervention, a scalpel is generally used to incise the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/24A61B17/34A61B17/00
CPCA61B17/00A61B17/3468A61F2/24A61F2/2427
Inventor 李敬
Owner 赛诺心畅医疗科技有限公司
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