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Intraoperative brain protection device

A technology of brain protection and elastic stent, which is applied in the field of medical devices, can solve the problems of unfavorable intraoperative operation, vascular injury, and occupation of femoral artery vascular space, etc., achieve high fit and protection ability, reduce thrombus leakage, and reduce surgical risk Effect

Pending Publication Date: 2022-05-13
CHENXING (NANTONG) MEDICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, there is a type of thrombus protection device intervened through the femoral artery. When such devices are used for TAVI or transfemoral mitral valve replacement, they occupy part of the space of the femoral artery, which makes it easier to damage the blood vessels when using other devices.
For example, a technical solution disclosed by the Chinese invention "thrombosis protection device" (application number: CN108309505A): it needs to enter through the femoral artery, occupies a limited space in the femoral artery, restricts the use of other instruments, is not conducive to intraoperative operation, and is difficult to ensure after effects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1: as Figure 1 to Figure 4 As shown, an intraoperative brain protection device includes an elastic stent 1 and a filter screen 2. The elastic stent 1 is in a contracted state when it does not enter the inner wall of the blood vessel of the aortic arch 11, and when it enters the inner wall of the blood vessel of the aortic arch 11, the above The elastic stent 1 can self-expand on the inner wall of the blood vessel of the aortic arch 11 and fit with the inner wall of the blood vessel of the aortic arch 11 . like image 3 As shown, in order to prevent the corners of the elastic support 1 from causing damage to the patient, the above-mentioned elastic support 1 is a ring-like structure surrounded by elastic metal materials, and the ring-like structure is a structure similar to a ring, which can effectively avoid the generation of corners, While playing a supporting role, it ensures the safety during operation. Both the distal end and the proximal end of the above...

Embodiment 2

[0060] Embodiment 2: as Figure 5 to Figure 6 As shown, the difference between this embodiment and the first embodiment is that the intraoperative brain protection device in this embodiment includes an elastic support 1 and a filter screen 2, and is also provided with a proximal end outside the elastic support 1. The second filter screen 12, the second filter screen 12 is arranged on the extension line of the filter screen 2, even if the filter screen 2 extends in the direction of the left subclavian artery 5 until the second filter screen 12 can completely cover the left clavicle Inferior artery 5, avoiding emboli or plaque into the left subclavian artery 5.

[0061] In order to facilitate storage and deployment, and at the same time to ensure safety during use, the mesh density of the second filter screen 12 is greater than that of the filter screen 2, and the second filter screen 12 can be shrunk to a Combined with the folded state of the elastic stent 1 at the proximal en...

Embodiment 3

[0062] Example three: as Figure 7 to Figure 9 As shown in the figure, the difference between this embodiment and the first embodiment is that the intraoperative brain protection device in this embodiment includes an elastic support 1 and a filter screen 2, and the proximal end of the elastic support 1 is arranged obliquely upward, The above-mentioned filter screen 2 at the convergent end of the above-mentioned elastic support 1 forms a proximal sealing member 3 for collecting plugs or plaques, the proximal end of the above-mentioned elastic support 1 is also provided with a proximal sealing member 3, and the above-mentioned connecting portion 4 is located at the On the above-mentioned proximal-end sealing member 3, the above-mentioned proximal-end sealing member 3 is fitted to the 5 orifice of the left subclavian artery or its inner wall.

[0063] The above-mentioned proximal sealing member 3 surrounds the 5 ports of the left subclavian artery; the above-mentioned intraoperat...

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Abstract

The invention discloses an intraoperative brain protection device which comprises an elastic support and a filter screen. The elastic support can expand on the inner wall of a blood vessel of the aortic arch and is attached to the inner wall of the blood vessel of the aortic arch, the elastic support is of a ring-like structure defined by elastic metal materials, and the far end and the near end, in the axial direction, of the ring-like structure tilt upwards so that the intra-operative brain protection device can be fixed in the aortic arch; the filter screen is located in an area defined by the elastic support, and the two ends of the filter screen are connected with the far end and the near end of the ring-like structure respectively so as to prevent thrombus generated in the operation from entering the head artery. The protection device adopts the left subclavian artery approach, and compared with a traditional femoral artery protection device, the influence that other femoral artery approach instruments jointly occupy the femoral artery is reduced, the operation effect is guaranteed, and popularization and application of the intraoperative brain protection device in the technical field of medical instruments are facilitated.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an intraoperative brain protection device. Background technique [0002] With the extensive clinical and development of cardiovascular interventional surgery in the world. Such as transcatheter aortic valve replacement, transcatheter mitral valve replacement, etc. During the operation, calcified plaques, blood clots and other structures are broken and fallen off, and enter the cerebral blood vessels or other important organs along the direction of blood flow, resulting in serious complications such as stroke. [0003] In the prior art, there is a type of thrombus protection device through femoral artery intervention. Such devices occupy part of the space of the femoral artery blood vessels when performing TAVI or transfemoral mitral valve replacement, which makes the use of other devices more likely to cause damage to the blood vessels. . For example, a technical solut...

Claims

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Application Information

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IPC IPC(8): A61F2/01
CPCA61F2/013
Inventor 王焱庄晖姜程文高泽明梁玉晨
Owner CHENXING (NANTONG) MEDICAL EQUIP CO LTD
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