A device for evacuating the digestive tract
A technology of digestive tract and memory alloy, which is applied to the device of human tubular structure, non-surgical orthopaedic surgery, etc., can solve the problems of large trauma and complicated operation of patients, and achieve the effect of simple and convenient use.
Active Publication Date: 2016-02-24
XI AN JIAOTONG UNIV
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Problems solved by technology
At present, the clinical implementation of digestive tract exclusion must reconstruct the digestive path of food through surgery, which is complicated and traumatic to patients.
Currently, there are no medical devices or devices for intubation of the alimentary canal
Method used
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Embodiment Construction
[0025] The present invention will be described in more detail below in conjunction with the accompanying drawings.
[0026] Such as figure 1 with figure 2 As shown, the evacuation device in the digestive tract mainly includes a first nickel-titanium shape memory alloy ring 1 , a connecting membrane 2 , a second nickel-titanium shape memory alloy ring 3 , an inwardly rolled isolation membrane 4 , a restraining wire 5 , and a guide ball 6 . The connecting membrane 2 is a cylindrical structure, connecting the first nickel-titanium shape memory alloy ring 1 and the second nickel-titanium shape memory alloy ring 3; the isolation membrane 4 is also a cylindrical structure, and one end is located on the second nickel-titanium shape memory alloy ring 3 Connected to the edge of the connecting film 2; one end of the restraint line 5 is set on the other end of the isolation film 4; the guide ball 6 is connected to the other end of the restraint line 5;
[0027] Such as image 3 As sh...
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An exclusion device in the alimentary canal comprises a first nickel-titanium shape memory alloy ring, a connecting film, a second nickel-titanium shape memory alloy ring, an involute isolating film, a restraint wire and a guide ball. The connecting film is of tubular structure and is connected with the first nickel-titanium shape memory alloy ring and the second nickel-titanium shape memory alloy ring. The isolating film is also of tubular structure, and one end of the isolating film is arranged on the second nickel-titanium shape memory alloy ring and connected with the edge of the connecting film. One end of the restraint wire is arranged at the other end of the isolating film. The guide ball is connected to the other end of the restraint wire. A development wire is arranged in the inner side wall of the isolating film. By means of the nickel-titanium shape memory alloy rings and the isolating film composited by high polymer materials, exclusion in the alimentary canal is realized. By the exclusion device, reconstruction of the alimentary canal in surgical operation can be excluded. Besides, the exclusion device is simple and convenient to use, and effectively excludes the alimentary canal. The exclusion device arranged in the alimentary canal can be either conveniently taken out or permanently arranged in vivo according to needs.
Description
technical field [0001] The invention relates to a medical device, in particular to a device for keeping the digestive tract open. Background technique [0002] Absence of the digestive tract can be used to treat type 2 diabetes, obesity, refractory duodenal ulcer, etc. At present, the digestive tract exclusion must be performed clinically to reconstruct the digestive path of food through surgery, which is complicated and traumatic to the patient. Currently, there are no medical devices or devices for intra-digestive drainage. Contents of the invention [0003] In order to overcome the deficiencies in the above-mentioned prior art, the object of the present invention is to provide a device for evacuating the digestive tract, which can realize evacuation of the gastrointestinal tract by using an isolation sleeve made of nickel-titanium memory alloy and polymer materials. The device can avoid surgical operation to reconstruct the digestive tract, the device is simple and co...
Claims
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IPC IPC(8): A61F5/00A61F2/04
Inventor 严小鹏吕毅张达马锋
Owner XI AN JIAOTONG UNIV