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Intracavity opening device for vascular occlusion lesions

An occlusion and venereal disease technology, applied in the field of intracavity opening devices, can solve problems such as treatment failure, and achieve the effect of facilitating grinding of lesions and reducing damage

Pending Publication Date: 2020-11-13
朱瑛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual surgical operations, the existing endovascular treatment devices are often unable to complete effective endovascular opening because the lesion itself is too tough, such as severely calcified atherosclerotic plaque or severely organized thrombus. ultimately lead to treatment failure

Method used

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  • Intracavity opening device for vascular occlusion lesions
  • Intracavity opening device for vascular occlusion lesions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] See Figure 1 to Figure 2 , the device for opening the lumen of vaso-occlusive lesions in this embodiment includes an inner catheter 1 and an outer catheter 2 . The inner catheter 2 is pierced with a grinding device 3. The grinding device 3 includes a rotating shaft 3-1 and a grinding head 3-2 fixed on the far end of the rotating shaft 3-1. The rotating shaft 3-1 is also covered with a rubber The insulation protection sheath 3-3 that material is made. The maximum outer diameter of the grinding head 3-2 is smaller than the inner diameter of the inner catheter 1 and the front end of the grinding head 3-2 is chamfered in a circular arc, so that the grinding head 3-2 can be retracted into the inner cavity of the inner catheter 1, so that the instrument can be placed smoothly Move forward in the blood vessel to the lesion, while protecting the grinding head 3-2, it can also avoid damage to the blood vessel wall.

[0030] The proximal end of the inner catheter 3 is provided...

Embodiment 2

[0038] The structure of this embodiment is basically the same as that of the embodiment, the difference is that the material of the mesh protective sleeve 7 is nickel-titanium alloy, which has better blood vessel support, adopts a tightly woven mesh elastic structure, and the braided strips are not connected to each other , can undergo elastic expansion deformation.

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Abstract

The invention discloses an intracavity opening device for vascular occlusion lesions. The device comprises an inner catheter and an outer catheter. A grinding device is arranged in the inner catheterin a penetrating mode, and an operating device which is communicated with the grinding device and suitable for controlling the grinding device to act is arranged at the near end of the inner catheter;the outer catheter comprises a grinding cavity, a balloon cavity and a suction cavity, and the inner catheter is arranged in the grinding cavity in a penetrating mode and extends out of the far end of the grinding cavity; the far end of the outer catheter is provided with a suction port communicated with the suction cavity, and the rear part of the suction port is provided with a balloon communicated with the balloon cavity; the near end of the outer catheter is provided with a pressure valve connector communicated with the balloon cavity and a suction connector communicated with the suctioncavity, and the suction connector is connected with a suction device through a catheter. Calcified plaques or thrombus causing lumen occlusion in blood vessels can be efficiently removed, plaques or thrombus fragments can be effectively prevented from flowing to the far end along with blood, and far-end embolism is avoided.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an intracavity opening device for vascular occlusive lesions. Background technique [0002] Endovascular treatment refers to the use of special intravascular surgical instruments to puncture the blood vessel through the body surface and reach the position of the vascular lesion to complete the corresponding surgical operation. At present, endovascular treatment has become the first choice for most vascular diseases. Various types of endovascular treatment devices accompanied by corresponding treatment methods can basically meet the needs of most endovascular operations. It is safe, minimally invasive, simple, etc. Advantages are prompting it to gradually replace traditional open surgery. [0003] However, the existing endovascular treatment still has unavoidable disadvantages. For some vascular occlusive diseases faced in clinical work, such as arteriosclerotic occlusive disease ...

Claims

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Application Information

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IPC IPC(8): A61B17/22
CPCA61B17/22012A61B2017/22067A61B2017/22079A61B2017/22094
Inventor 朱瑛
Owner 朱瑛
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