Device for establishing blood vessel tunnel under direct vision

Abstract

The invention relates to a device for establishing a blood vessel tunnel under direct vision. The device for establishing the blood vessel tunnel under the direct vision comprises a subcutaneous tunnel device, an inflation device and an electron microscope, the subcutaneous tunnel device body is of a cylindrical structure, and the front end of the subcutaneous tunnel device body is of a structure with the diameter gradually reduced. A gas channel and a microscope channel which are of hollow structures are respectively arranged in the subcutaneous tunnel device; the inflating device comprises an inflating bag and an inflating tube; the diameter of the gas filling pipe is smaller than that of the gas channel; the electronic fiberscope comprises a display screen and a fiber pipeline; the tail end of the fiber pipeline is connected with the display screen, and an illuminating lamp and a camera are arranged in the front end of the fiber pipeline; and the diameter of the fiber pipeline is smaller than that of the microscope pipeline. The device has the advantages that when a blood vessel channel is built subcutaneously, the blood vessel tunnel device can be directly propelled subcutaneously, damage to blood vessels, nerves and muscles is avoided, meanwhile, the propelling direction can be conveniently adjusted, a blood vessel anastomotic stoma can be accurately aligned, and clinical complications are avoided.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a device for establishing a blood vessel tunnel under direct vision. Background technique [0002] Lower extremity arteriosclerosis occlusive disease refers to the chronic progressive disease of intima thickening, lumen stenosis or occlusion of the lower extremity arteries due to arteriosclerosis, resulting in insufficient blood supply to the affected extremities, and is often the manifestation of systemic arteriosclerosis vascular disease in the arteries of the lower extremities . [0003] The treatment of lower extremity arteriosclerosis obliterans includes surgical bypass surgery and endovascular treatment. Although endovascular treatment has become the first choice for the treatment of lower extremity arteriosclerosis obliterans due to its small trauma and few complications. However, TASCII clearly pointed out that A-type lesions are suitable for endovascular tr...

AI Technical Summary

Problems solved by technology

In the past, the traditional subcutaneous vascular tunneler was used to establish a subcutaneous tunnel. This method has the following disadvantages: (1) This method establishes a vascular channel subcutaneously based on the experience of the surgeon. Since the subcutaneous advancement of the vascular tunneler cannot be directly observed, the blood vessel may be damaged. , Nerve and muscle injury, especially in the main-double-femoral bypass surgery, the advancement of the subcutaneous tunnel device may cause damage to the iliofemoral blood vessels, resulting in fatal complications

(2) If blood vessel damage leads to malabsorption of subcutaneous hematoma, it may lead to serious complications such as further infection of artificial blood vessels; (3) At the same time, due to the inability to see directly, the subcutaneous tunnel device enters different anatomical levels during the advancement process, so that after repeated pushing and subsequent The withdrawal process will aggravate the above damage (4) During the process of pushing the vascular tunnel device, because there is no visible fiber indicator at the front end, the pushing direction deviates from the position of the vascular anastomosis, so it is necessary to constantly adjust the pushing direction, which can also aggravate the above damage

However, it is about a process of directly advancing a vascular tunnel device under the skin when establishing a vascular channel under the skin, avoiding damage to blood vessels, nerves and muscles, and at the same time, it is convenient to adjust the direction of advancement, accurately align the vascular anastomosis, and avoid clinical complications. There are no relevant reports on the establishment of vascular tunneling devices under direct vision

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