Laser ablation catheter with additional shock wave balloon

A shock wave, pulsed laser technology, applied in the field of diagnosis, can solve the problem of the catheter being difficult to achieve consistency

Active Publication Date: 2021-06-29
HARBIN MEDICAL UNIVERSITY +1
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem that laser ablation and other percutaneous coronary interventions are difficult to achieve the same cross section of the catheter, we proposed a laser ablation catheter with a shock wave balloon, and also solved the cross-sectional area of ​​the catheter after the combination of the two treatment techniques Consistency issues; the operator can first use laser ablation to pass through the narrow or even blocked lesion area, and then place the electrodes of shock wave angioplasty on the lesion area to further soften the calcified lesion for further treatment, so that it can be as much as possible Pretreatment of calcified lesions with high resistance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Laser ablation catheter with additional shock wave balloon
  • Laser ablation catheter with additional shock wave balloon
  • Laser ablation catheter with additional shock wave balloon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] like figure 1 The illustrated embodiment of the present invention includes: a catheter 400, an optical waveguide 200, a guide wire lumen 100 and a pulsed laser 111; wherein the optical waveguide 200 is installed in the catheter 400, and the catheter 400 consists of a thick distal end 403, a narrowed section 405 and a The thin proximal end 404 is composed of three parts fixed together, the distal end face 401 of the catheter 400 is the end face of the optical waveguide 200 and the outlet end face of the guide wire lumen 100; the proximal outlet of the guide wire lumen 100 is set on the thin proximal end 404, and the guide wire The distal outlet of the wire lumen 100 is set at the center of the distal end surface 401 of the thick distal end 403, the optical waveguide 200 transmits the pulsed laser from the proximal end of the catheter to the distal end, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a laser ablation catheter with an additional shock wave balloon, and belongs to the field of diagnosis. An optical waveguide is installed in the catheter, the catheter is formed by integrally and fixedly connecting a thick far end, a narrowing section and a thin near end, and the end face of the far end of the catheter is an outlet end face of the optical waveguide and a guide wire tube cavity. A near-end outlet of the guide wire tube cavity is formed in the thin near end, a far-end outlet of the guide wire tube cavity is formed in the center of the far-end end face of the thick far end, the far end of the optical waveguide is arranged on the far-end end face, and the near end of the optical waveguide is connected with a pulse laser. Filaments are arranged in the far-end end face, and are inserted into gaps of the optical waveguide distributed in the thick far end. The problem of consistency contradiction between catheters in combination with other percutaneous coronary interventional therapy caused by requirements on the cross section area size and the cross section area change value of the catheters used in laser ablation is solved.

Description

technical field [0001] The invention belongs to the technical field of diagnosis, in particular to a laser ablation catheter with a shock wave balloon attached. Background technique [0002] Percutaneous Coronary Intervention (PCI) is a minimally invasive procedure to dredge the narrowed or even occluded coronary artery lumen through catheter technology, thereby improving the blood perfusion of the myocardium. Traditional treatments include balloon angioplasty or stent implantation. However, coronary artery calcification increases the difficulty of interventional therapy, increases the immediate complications of surgery and the incidence of early and late major adverse cardiovascular events. The reason is that calcified lesions are high-resistance lesions, and the balloon requires very high pressure (sometimes the pressure can reach 10 to 15 standard atmospheres, or even 30 standard atmospheres). Such pressure usually significantly increases the probability of rebound sten...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/24A61B17/22
CPCA61B18/24A61B17/22012A61B2017/22025
Inventor 于波候静波贾海波赵晨康维徐晨阳
Owner HARBIN MEDICAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products