A kind of atrial septum puncture assembly

An atrial septum and component technology, applied in the medical field, can solve the problem of not being able to judge the distance between the tip of the dilating sheath and the atrium of the heart and the safety of puncture at any time.

Active Publication Date: 2021-07-30
HARBIN MEDICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides an atrial septal puncture assembly due to the problem of puncture safety due to the inability to judge the distance between the tip of the expansion sheath and the atrium at any time during atrial septal puncture

Method used

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  • A kind of atrial septum puncture assembly
  • A kind of atrial septum puncture assembly
  • A kind of atrial septum puncture assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Such as Figure 1 to Figure 7As shown, the atrial septal puncture assembly 10 includes an atrial septal puncture needle 11 , a dilator 12 and a sheath 13 . Wherein the dilator includes a dilator tube body, the dilator tube body includes a distal end, a proximal end and a central chamber, and the proximal end of the dilator tube body is provided with a dilator side tube 44 and a three-way valve. At least one groove 23 is provided on the inner wall of the distal chamber of the dilator body. There may also be two or more grooves, which can be determined by those skilled in the art according to actual needs. One end of the groove reaches directly to the tip of the dilator, and the other end can extend to the proximal end of the dilator body and connect to a three-way valve through a side tube. The contrast agent flows along the grooves to the end of the dilator tube where it is ejected. A tube body may also be provided in the groove, and the contrast agent flows along th...

Embodiment 2

[0054] Such as Figure 8 to Figure 13 As shown, the atrial septal puncture assembly 10 includes an atrial septal puncture needle 11 , a dilator 12 and a sheath 13 . Wherein the dilator includes a dilator tube body, the dilator tube body includes a distal end, a proximal end and a central chamber, and a dilator side tube joint 14 is provided at the proximal end of the dilator tube body. At least one groove 23 is provided on the inner wall of the distal chamber of the dilator body. There may also be two or more grooves, which can be determined by those skilled in the art according to actual needs. The groove described in this example does not extend to the proximal end of the dilator body, so there is no side tube at the proximal end of the dilator. The widest part of the groove is larger than the outer diameter of the tube body of the interseptal puncture needle. The contrast agent flows along the grooves to the end of the dilator tube where it is ejected.

[0055] A tube b...

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Abstract

An atrial septal puncture assembly, which relates to the medical field. The invention aims to solve the problem of puncture safety due to the inability to judge the distance between the tip of the expansion sheath and the atrium in the atrial septal puncture at any time. The atrial septal puncture assembly of the present invention includes an atrial septal puncture needle, a dilator and a sheath, wherein the dilator includes a dilator tube body, and the dilator tube body includes a distal end, a proximal end, and a central chamber, and the dilator The proximal end of the tube body can be provided with a dilator side tube and connected with a three-way joint, and at least one groove is provided on the inner wall of the cavity of the tube body of the dilator, and the groove reaches directly to the distal tip of the dilator. According to the solution of the present invention, during the atrial septal puncture operation, when the contrast agent or heparin saline is injected, the contrast agent or heparin saline can be ejected from the tip of the dilator, and the dilation can be clearly judged under X-ray or intracardiac ultrasound position at the far end of the device. The invention is applied in the field of atrial septum puncture.

Description

technical field [0001] The invention relates to the medical field, in particular to an atrial septum puncture assembly. Background technique [0002] At present, with the rapid development of interventional equipment and equipment, the application of cardiac interventional therapy is becoming more and more extensive, which makes atrial septal puncture more widely used. In 1959, Ross et al. reported the animal experimental study of atrial septal puncture, and in the same year, Cope and Rossdeng et al first applied atrial septal puncture to clinic. In the early atrial septal puncture, the method of directly puncturing the atrial septum with a puncture needle through the right atrial catheter was used. In 1960, Brockenbrough and Brawnwald et al. The tapered structure at the end increases the safety of operation. In 1977, Mullins et al. configured an outer sheath for the atrial septal puncture catheter, which further improved the operability and safety of atrial septal punctur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/34
CPCA61B17/34A61B17/3403A61B2017/3413
Inventor 王召军
Owner HARBIN MEDICAL UNIVERSITY
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