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A drill-mill integrated cutter for vascular calcified tissue rotational atherectomy and its manufacturing method

A vascular calcification and cutting tool technology, which is applied in the directions of drilling tool accessories, drilling/drilling equipment, boring machine/drilling machine components, etc. Application range and uniform coating effect

Active Publication Date: 2022-02-25
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the fact that the current microabrasives used in rotational atherectomy have a small range of use and cannot meet the requirements of clinical use, the present invention proposes a drill-mill integrated tool design and manufacturing method for vascular calcified tissue rotational atherectomy.

Method used

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  • A drill-mill integrated cutter for vascular calcified tissue rotational atherectomy and its manufacturing method
  • A drill-mill integrated cutter for vascular calcified tissue rotational atherectomy and its manufacturing method
  • A drill-mill integrated cutter for vascular calcified tissue rotational atherectomy and its manufacturing method

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with accompanying drawing.

[0025] like figure 1 As shown, a drill-mill integrated tool for rotational atherectomy of vascular calcified tissue is characterized in that it is mainly composed of a micro-drill part 1 , a micro-grind part 2 and a connecting part 3 . Wherein the micro-drill part includes a drill point and a spiral groove, and the micro-grinding head is an olive-shaped electroplated diamond grinding head. When performing rotational atherectomy on severely calcified or completely calcified blood vessels, the micro-drill firstly drills the calcified tissue to ensure that the subsequent micro-abrasion rod can enter the designated position for subsequent rotational atherectomy. The micro-grinding head part 2 is electroplated by the ultrasonic embedding sand method using the prepared abrasive to ensure uniform coating on the surface of the micro-grinding head and improve the efficiency and saf...

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Abstract

The invention discloses a drill-mill integrated tool based on vascular calcified tissue rotational atherectomy and a manufacturing method thereof. The integrated drilling and grinding tool includes a micro-drill at the front end, a micro-grinding head in the middle and a connecting part at the rear end. The base body of the integrated drilling and grinding tool is processed by a lathe, the front end micro-drilling part is precisely ground by a precision grinder, the abrasive is prepared by ultrasonic vibration, and the surface of the tool is evenly plated by electroplating by ultrasonic vibration heating buried sand method. This design makes full use of the advantages of the micro-drill and micro-grinding head. When the vascular calcification is severe or even completely blocked, a micro-hole is drilled with the front-end micro-drill to facilitate the subsequent micro-grinding head to enter the designated area for rotational abrasion of the patient's calcified blood vessels. Treatment, realize the rotary atherectomy treatment for severe or even complete calcified blood vessels. Therefore, the present invention can better realize the rotational atherectomy treatment of severe calcified blood vessels by rotational atherectomy, and expand the application range and therapeutic effect of rotational atherectomy.

Description

technical field [0001] The invention relates to a drill-mill integrated cutter for vascular calcified tissue rotational atherectomy and a manufacturing method thereof, in particular to a fine cutter for arterial rotational atherectomy and a preparation method thereof. Background technique [0002] With the obvious increase of population aging, arterial complex lesions and calcified lesions are gradually increasing. Calcified tissue in blood vessels that blocks blood vessels will reduce the inner diameter of blood vessels and impede blood flow, resulting in increased intravascular pressure and insufficient oxygen supply, which can easily induce various vascular diseases. At present, percutaneous coronary intervention (PCI), including balloon angioplasty, stent implantation and rotational atherectomy, has become the main treatment method for dredging narrowed or even occluded blood vessels. Balloon angioplasty and stent implantation mainly use the deformation of the balloon a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/3207C25D3/18C25D15/00C25D7/00C25D5/20B24B1/00B24B3/24
CPCA61B17/320758C25D3/18C25D15/00C25D7/00C25D5/20B24B1/00B24B3/24
Inventor 梁志强陈锐周天丰刘瑶孙海刚袁昊王西彬焦黎刘志兵
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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