Novel atrial septum puncture guide wire and puncture system composed of guide wire

By designing a novel guidewire for atrial septal puncture, the problems of multiple angle adjustments and prolonged radiation exposure in existing technologies have been solved. This achieves stable anchor point fixation of the catheter, reduces instrument exchanges and radiation exposure, lowers the risk of vascular injury, and improves surgical safety.

CN224462106UActive Publication Date: 2026-07-07艾科脉医疗器械(绍兴)有限公司
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Patent Information

Application Number
CN202423145461.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2026-07-07
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

Existing atrial septal puncture instruments require multiple angle adjustments during the puncture process, increasing the risk of intravascular and extravascular exchange, and the long exposure time to radiation may lead to vascular and cardiac damage.

Method used

A novel guidewire for atrial septal puncture has been designed, comprising a guidewire body, a tip electrode, a spring, and an insulating layer. The guidewire body has variable diameters at both ends, the tip electrode is a metal cavity, the spring is sleeved on the outside of the guidewire, and the insulating layer covers the outer surface of the guidewire. The tip of the guidewire can be bent into a 'J' shape and a 'pigtail' shape, reducing the number of instrument exchanges and radiation exposure time.

Benefits of technology

By securing the catheter with a stable anchor point, the number of instrument exchanges is reduced, the risk of vascular injury is lowered, the operation time is shortened, radiation exposure is reduced, clear imaging guidance is provided, and the burden on patients and doctors is reduced.

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Abstract

The utility model relates to the field of medical instruments, in particular to a novel atrial septum puncture guide wire and a puncture system composed of the guide wire, and the novel atrial septum puncture guide wire comprises a guide wire main body, a head end electrode, a spring and an insulating layer; the head end electrode is a metal cavity, one end is provided with a through hole for the guide wire main body to penetrate and insert, and the other end is a closed smooth spherical surface; two ends of the guide wire main body respectively penetrate through the through holes, and are respectively welded and fixed in the smooth spherical surface with one head end electrode; one end of the guide wire body is bent into a J shape, and the other end of the guide wire body is in a pigtail shape formed by multiple circles of bending. When the puncturing system is used for puncturing, the tail end of the pig is used for puncturing, after puncturing is completed, the head end electrode at the tail end of the pig can recover to be in a pigtail shape in the left atrium to be fixed, a stable anchor point is provided for pushing of a catheter, meanwhile, a clear image can be obtained under ICE, and the ray exposure time of puncturing is shortened; the J-shaped end is used as a unipolar mapping electrode in the atrium, and the change of the number of instruments used in the operation process is reduced.
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