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Drilling and grinding integrated cutter used for rotational atherectomy of blood vessel calcified tissues, and manufacture method of drilling and grinding integrated cutter

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: 2021-06-04
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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.

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  • Drilling and grinding integrated cutter used for rotational atherectomy of blood vessel calcified tissues, and manufacture method of drilling and grinding integrated cutter
  • Drilling and grinding integrated cutter used for rotational atherectomy of blood vessel calcified tissues, and manufacture method of drilling and grinding integrated cutter
  • Drilling and grinding integrated cutter used for rotational atherectomy of blood vessel calcified tissues, and manufacture method of drilling and grinding integrated cutter

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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 drilling and grinding integrated cutter used for rotational atherectomy of blood vessel calcified tissues, and a manufacture method of the drilling and grinding integrated cutter. The drilling and grinding integrated cutter comprises a front-end micro drill bit, a middle micro grinding head and a rear-end connection part. The base of the drilling and grinding integrated cutter carries out machining by a lathe, the front-end micro drill bit carries out precise cutter grinding by a precise grinding machine, ultrasonic vibration is adopted to make an abrasive material preparation, and sand embedding method electroplating for ultrasonic vibration heating is adopted to realize even plating of the surface of the cutter. The design fully utilizes the advantages of the micro drill bit and the micro grinding head, when a blood vessel is seriously calcified and is even completely blocked, the front-end micro drill bit is used for drilling a micro hole so as to be convenient for the following micro grinding head to enter an appointed area to carry out rotational atherectomy treatment on the calcified blood vessel of a patient, and the rotational atherectomy treatment of the seriously calcified even completely calcified blood vessel is realized. Therefore, the drilling and grinding integrated cutter disclosed by the invention can more favorably realize rotational atherectomy treatment of the rotational atherectomy for the seriously calcified blood vessel, and a use range and a treatment effect of the rotational atherectomy are respectively enlarged and improved.

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 Applications(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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