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Guiding sheathing canal, catheter and oval nest detection method for inter-atrial septal puncture

A technology of atrial septum and fossa ovale, applied in catheters, puncture needles, puncture needles, etc., can solve the radiation problems of patients and doctors, and achieve the effects of protecting radiation effects, simple catheter structure, and simple structure

Active Publication Date: 2020-04-17
SICHUAN JINJIANG ELECTRONICS SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This caused a lot of radiation to patients and doctors

Method used

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  • Guiding sheathing canal, catheter and oval nest detection method for inter-atrial septal puncture
  • Guiding sheathing canal, catheter and oval nest detection method for inter-atrial septal puncture
  • Guiding sheathing canal, catheter and oval nest detection method for inter-atrial septal puncture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] like Figure 1-9 As shown, a guiding sheath for atrial septal puncture and a catheter 11 for atrial septal puncture used in conjunction with it according to the present invention.

[0085] The guiding sheath includes a terminal sheath 1 and an adjustable curved section 2 connected thereto, and the two ends of the adjustable curved section 2 are provided with a first sheath magnetic positioning sensor 61 and a second sheath magnetic positioning sensor 61 respectively. Sensor 62, the first sheath magnetic positioning sensor 61 is close to the terminal sheath 1, the first sheath magnetic positioning sensor 61 is close to the end of the terminal sheath 1 to the free end of the terminal sheath 1 The distance is L;

[0086] The catheter 11 can move axially along the guiding sheath, the distance from the end of the first sheath magnetic positioning sensor 61 close to the end sheath 1 to the free end of the catheter 11 is D, and the catheter 11 The free end is provided with a...

Embodiment 2

[0100] like Figure 1-9 As shown, a kind of fossa ovalis detection method of the present invention is characterized in that, application guide sheath tube and catheter 11 as described in embodiment 1, this method comprises the following steps:

[0101] A. Perform vascular puncture to place the guide sheath into the lower chamber of the atrium;

[0102] B. Putting the catheter 11 in the guiding sheath so that the electrodes at the end of the catheter 11 are exposed to the terminal sheath 1;

[0103] C. Manipulating the catheter 11 and the guiding sheath to construct a physical model of the right atrium;

[0104] D, determine the fossa ovale position range according to the right atrium physical model;

[0105] E. If Figure 7 and 8 As shown, the terminal sheath 1 is perpendicular to the range of the fossa ovalis and close to the fossa ovalis to fix the guiding sheath;

[0106] F. If Figure 9 As shown, extend the free end of the catheter 11 out of the terminal sheath 1, de...

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Abstract

The invention discloses a guiding sheathing canal, a catheter and an oval nest detection method for inter-atrial septal puncture. The guiding sheathing canal comprises a tail end sheathing canal and an adjustable bent section connected with the tail end sheathing canal, a first sheathing canal magnetic positioning sensor and a second sheathing canal magnetic positioning sensor are arranged at thetwo ends of the adjustable bent section respectively, the first sheathing canal magnetic positioning sensor is close to the tail end sheathing canal, and the distance between the end, close to the tail end sheathing canal, of the first sheathing canal magnetic positioning sensor and the free end of the tail end sheathing canal is remarked as L; the guiding sheathing canal is used for being matchedwith the catheter, the catheter can move in the axial direction of the guiding sheathing canal, the distance between the end, close to the tail end sheathing canal, of the first sheathing canal magnetic positioning sensor and the free end of the catheter is marked as D, and the free end of the catheter is provided with a pressure sensor and a catheter magnetic positioning sensor. According to theguiding sheathing canal, inter-atrial septal puncture is more accurate and effective, puncture time is saved, more importantly, zero ray in the puncture process can be achieved, the bodies of doctorsand patients are better protected against radiation influences, and the guiding sheathing canal is simple in structure, convenient to use and good in effect.

Description

technical field [0001] The invention relates to the technical field of medical guidance puncture, in particular to a guiding sheath, catheter and fossa ovale detection method for atrial septal puncture. Background technique [0002] Atrial septal puncture was first reported by Ross et al. in 1959, and then Brockenbrough and Mullins et al. improved the puncture needle, sheath and puncture technique on this basis. At that time, it was mainly used for left heart catheterization for valvular lesions. Now, with the increasing popularity of catheter ablation of atrial fibrillation, atrial septal puncture has become a common clinical technique. [0003] Atrial septal puncture can be used in catheter ablation of left bypass via transseptal approach, ablation of atrial fibrillation, ablation of left atrial tachycardia and ablation of left atrium atrial flutter. Alternative pathways and essential supplements for ablation of disorders. [0004] The percutaneous catheter cannot reach ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34A61B5/00A61M25/00
CPCA61B17/3403A61B17/3415A61B17/3476A61B17/3421A61B5/00A61M25/0043A61M25/0067A61B2017/3454
Inventor 朱晓林李楚武邹波
Owner SICHUAN JINJIANG ELECTRONICS SCI & TECH CO LTD
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