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Brain protection device and aortic valve replacement operation instrument

A technology for brain protection and aorta, applied in the field of medical devices, can solve problems such as poor thrombus filtering effect and inability to ensure full coverage of blood vessels, and achieve the effect of maintaining structural integrity and improving production efficiency.

Pending Publication Date: 2020-10-13
石家庄帝中医疗器械科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

figure 1 It is a schematic diagram of the operation of interventional instruments and brain protection devices in the prior art, such as figure 1 As shown, the existing interventional instrument 300 is independently punctured through the femoral artery and the operation is performed. In order not to affect the pushing and operation of the interventional instrument 300, the brain protection device includes a filter 220, which needs to be inserted into the head and arm from other arteries by a push guide wire. In the trunk artery and the left common carotid artery to prevent the thrombus at the surgical site from flowing to the brain, but it cannot ensure that all the blood vessels connected to the brain on the aortic arch are covered, and the thrombus filtering effect is poor

Method used

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  • Brain protection device and aortic valve replacement operation instrument
  • Brain protection device and aortic valve replacement operation instrument
  • Brain protection device and aortic valve replacement operation instrument

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0038] figure 2 It is a schematic structural diagram of the brain protection device provided by the first embodiment of the present invention. Please refer to figure 2 , this embodiment provides a brain protection device, including a delivery sheath 100 and a filtering mechanism 200 .

[0039] Wherein, the delivery sheath 100 is used for transarterial puncture so that the filter mechanism 200 enters a predetermined position of the aorta 400 .

[0040] The filter mechanism 200 is arranged at the end of the delivery sheath 100. The filter mechanism 200 is an inflatable structure. After the filter mechanism 200 expands, it can be close to the inner wall of the blood vessel; the filter mechanism 200 is used to filter out the thrombus 800 in the blood vessel; Built into the delivery sheath 100 , it facilitates the puncturing and pushing operations of the delivery sheath 100 .

[0041] Wherein, the filter mechanism 200 can be directly installed on one end of the delivery sheath 1...

no. 2 example

[0046] image 3 Schematic diagram of the structure of the brain protection device provided by the second embodiment of the present invention; Figure 7 It is a schematic diagram of the operation of the brain protection device provided by the present invention during surgery. Please refer to image 3 , Figure 7 , this embodiment provides a brain protection device, which is substantially the same as the brain protection device of the first embodiment, the difference between the two is that the filter mechanism 200 in the brain protection device of this embodiment includes a push conduit 210 and a filter 220, A filter 220 is provided at the outlet end of the pushing conduit 210 . Wherein, the pushing catheter 210 is movably arranged in the delivery sheath 100 for putting the filter 220 from the inlet of the delivery sheath 100 and pushing it out of the outlet of the delivery sheath 100 .

[0047] Further, as figure 2 , image 3 As shown, the filter 220 includes a bracket ...

no. 3 example

[0055] Figure 7 It is a schematic diagram of the operation of the surgical instrument for aortic valve replacement provided by the third embodiment of the present invention during the operation. Please refer to Figure 7 , this embodiment provides an aortic valve replacement surgical instrument, including an interventional instrument 300 and the brain protection device of any one of the above-mentioned embodiments. Wherein, the interventional instrument 300 is movably arranged in the pushing catheter 210 and can be pushed along the lumen of the pushing catheter 210 to the upstream of the filter 220 in the blood vessel.

[0056] The operation method of the aortic valve replacement surgical instrument provided in this embodiment in transcatheter aortic valve replacement comprises the following steps:

[0057] Step 1. After puncturing through the femoral artery, the delivery sheath 100 is delivered to the upstream position of the carotid artery in the aorta 400 .

[0058] Ste...

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Abstract

The invention provides a brain protection device, and relates to the technical field of medical instruments. The brain protection device comprises a conveying sheath canal and a filtering mechanism, wherein the conveying sheath canal is used for enabling the filtering mechanism to enter a preset position of the aorta through arterial puncture; the filtering mechanism is arranged at the tail end ofthe conveying sheath canal, is of an expansion structure and can be tightly attached to the inner wall of the blood vessel after being expanded; and the filtering mechanism is used for filtering thrombus in the blood vessel. According to the brain protection device, the filtering mechanism is arranged in the conveying sheath canal, and the conveying sheath canal can be placed in an interventionaloperation instrument, so that unified filtering of aortic thrombus in an interventional operation process is achieved. On the basis, the invention further provides an aortic valve replacement operation instrument.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a brain protection device and an aortic valve replacement surgical instrument. Background technique [0002] With the advent of an aging society, the incidence of elderly valve degenerative diseases continues to increase, of which aortic valve stenosis is the most common valve disease. Elderly patients are difficult to accept thoracotomy because of their advanced age, poor physical condition, serious condition or multiple diseases, and interventional surgery is preferred. [0003] Of these, transcatheter aortic valve replacement (TAVR) is a standard interventional approach for symptomatic patients with severe aortic stenosis and high or moderate surgical risk. However, interventional treatment methods need to solve the problem of filtering thrombus during surgery. [0004] Similarly, balloon dilatation, mitral valve replacement, and mitral valve clamping also have p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/01A61B17/00
CPCA61F2/01A61B17/00234A61F2250/0067A61B2017/00243
Inventor 徐靖潘湘斌赵子贤
Owner 石家庄帝中医疗器械科技有限公司