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Magnetic positioning atrial septum puncture assembly

A technology of atrial septum and magnetic positioning, which can be used in puncture needles, medical science, surgery, etc., and can solve problems such as radiation of patients and doctors

Active Publication Date: 2022-07-15
SICHUAN JINJIANG ELECTRONICS SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008]The purpose of the present invention is: In the traditional atrial septal puncture existing in the prior art, it is necessary to use X-rays many times to display the shape of the heart and to judge the guiding components The location and determination of the puncture direction have caused a lot of radiation problems for patients and doctors, providing a magnetically positioned atrial septal puncture component

Method used

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  • Magnetic positioning atrial septum puncture assembly
  • Magnetic positioning atrial septum puncture assembly
  • Magnetic positioning atrial septum puncture assembly

Examples

Experimental program
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Effect test

Embodiment 1

[0041] like Figure 1-Figure 4 As shown, a magnetically positioned atrial septum puncture assembly includes an adjustable guide sheath assembly and a septal puncture needle assembly.

[0042] like figure 1 , 5, 6, the adjustable guide sheath assembly includes a distal end of the sheath 100, an adjustable bendable segment 101, a proximal tube body 102 and a control handle 104. The control handle 104 is provided with a handle knob 103, a handle knob 103 can control the bending of the adjustable bending section 101. The handle knob 103 can be rotated clockwise and counterclockwise respectively to control the bending of the adjustable bending section 101 in two directions to more than 135°, that is, double bending control. The lumen of the adjustable guide sheath is designed to be 8.5F, and the lumen channel is made of polymer materials with good self-lubricating properties. A metal braided layer 112 is arranged on the outer side of the inner cavity channel, and an outer layer ...

Embodiment 2

[0059] The difference between this embodiment and the embodiment is that this embodiment further includes a processor, and the processor is connected to the positioning sensor M1 , the positioning sensor M2 , the positioning sensor M3 , and the ring electrode 108 .

[0060] The processor constructs a physical model of the right atrium according to the information collected by the sheath distal positioning sensor M1, the sheath proximal positioning sensor M2, and the ring electrode 108, and demarcates the position of the fossa ovalis in the model.

[0061] The processor determines the relative positions of the sheath tube and the puncture needle according to the information collected by the sheath distal end positioning sensor M1, the sheath proximal end positioning sensor M2, and the puncture needle positioning sensor M3.

[0062] According to the information collected by the ring electrode 108, the processor judges whether the distal end of the sheath 100 enters the left atriu...

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Abstract

The invention discloses a magnetic positioning atrial septum puncture assembly which comprises an adjustable bending guide sheath tube assembly and an atrial septum puncture needle assembly. The bending-adjustable guide sheath tube assembly comprises a sheath tube far end and a bending-adjustable section, the sheath tube far end is provided with at least two ring electrodes, and the ring electrodes are used for collecting heart electrophysiological signals, comparing electrophysiological signal changes of the ring electrodes before and after atrial septum puncture and judging whether the sheath tube far end successfully penetrates through the atrial septum or not; the adjustable bending section is connected with the far end of the sheathing canal, positioning sensors are arranged at the two ends of the adjustable bending section respectively, and the positioning sensors are used for determining the bending form of the sheathing canal, the relative position relation between the sheathing canal and the catheter and the position of the sheathing canal in the heart; the interatrial septum puncture needle assembly comprises a needle tube assembly and a sensor assembly, and the sensor assembly comprises a puncture needle positioning sensor and is used for judging the position of a puncture needle tip and the relative positions of the puncture needle tip and other assemblies. The system comprises the ring electrode and the magnetic positioning sensor, and heart cavity modeling can be completed without a magnetic positioning catheter after the sheathing canal enters a heart cavity.

Description

technical field [0001] The invention relates to the technical field of medical-guided atrial septal puncture, in particular to a magnetic positioning atrial septal puncture component. Background technique [0002] Atrial septocentesis was first reported by Ross et al in 1959, after which 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 of valvular lesions. Now, with the continuous popularization of catheter ablation of atrial fibrillation, atrial septocentesis has become a common clinical technique. [0003] In catheter ablation, atrial septal puncture can be used for ablation of left bypass through atrial septal approach, ablation of atrial fibrillation, ablation of left atrial tachycardia, and ablation of left atrial flutter. Alternative approaches and necessary complements for abnormal ablation. [0004] The percutaneous catheter cannot reach the lef...

Claims

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Application Information

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IPC IPC(8): A61B17/34A61B34/10A61B34/20A61B90/00
CPCA61B17/3403A61B17/3415A61B90/06A61B34/10A61B34/20A61B2034/105A61B2034/108A61B2034/107A61B2034/2051A61B2034/2046
Inventor 尤超陈斌
Owner SICHUAN JINJIANG ELECTRONICS SCI & TECH CO LTD
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