Silicone Stent Delivery Device
A delivery device and silicone technology, applied in the field of medical devices, can solve the problems of difficulty and high risk of silicone stent implantation, and achieve the effects of reducing implantation risk, simple operation steps, and simple structure
Active Publication Date: 2021-07-30
SHENZHEN MEIHAO CHUANGYI MEDICAL TECH
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- Description
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Problems solved by technology
[0003] The problem to be solved by the present invention is to provide a silicone stent delivery device to solve the problems of difficulty and high risk of silicone stent implantation in the prior art
Method used
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[0023] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the invention.
[0024] In this specification, the term "distal end" refers to the end away from the operator during operation, and "proximal end" refers to the end close to the operator during operation.
[0025] refer to Figures 1 to 3 , the first embodiment of the present invention provides a silicone stent delivery device for delivering a silicone stent 10 to be delivered into the patient's trachea, including a delivery outer rod 20 and a deliver...
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The invention discloses a silicone stent conveying device, comprising an outer conveying rod and an inner conveying rod. The outer conveying rod comprises an outer sleeve with a tubular structure, and the side wall of the outer sleeve close to the distal end is provided with a first penetrating slot. The first slot extends axially to the end wall of the distal end, so that the proximal and distal parts of the outer sleeve form a first receiving groove extending in the axial direction, and the length of the first receiving groove is not less than the length of the silicone stent to be delivered; The inner rod includes an inner sleeve with a tubular structure, the side wall of the inner sleeve close to the distal end is provided with a second penetrating slot, and the second slot extends axially to the end wall of the distal end, so that the inner sleeve is close to the end wall of the distal end. The distal part forms a second receiving groove extending along the axial direction, and the length of the second receiving groove is not less than the length of the silicone stent to be delivered; the outer sleeve can be coaxially sleeved on the outside of the inner sleeve, and the outer sleeve and the inner sleeve are The sleeves can rotate relative to each other around the axis. The above-mentioned delivery device is simple in structure and operation steps, and can effectively reduce the risk of silicone stent implantation.
Description
technical field [0001] The invention relates to the technical field of medical devices, in particular to a silicone stent delivery device. Background technique [0002] Stenosis of the trachea and bronchi caused by inflammatory granulomas, scars, tumors and other lesions often easily lead to problems such as poor breathing and insufficient blood supply, and severe cases may be life-threatening. Stent implantation is one of the important means to treat airway stenosis. Silicone stent is the earliest airway stent developed. It has the advantages of low price and good biocompatibility. It is suitable for trachea, bronchi and other luminal parts. Treatment of strictures and lesions. However, due to the high tension of the silicone stent, the delivery process needs to be carried out under the guidance of a rigid bronchoscope. At the same time, the patient needs to be under general anesthesia to ensure the ventilation function, which makes the implantation of the silicone stent m...
Claims
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IPC IPC(8): A61F2/966A61F2/97
Inventor 周立王锋谭景霞
Owner SHENZHEN MEIHAO CHUANGYI MEDICAL TECH