Liquid nitrogen cryoablation system and control method therefor
By designing a liquid nitrogen cryoablation system, and utilizing the synergistic effect of multiple switches and pumps, rapid vacuuming and real-time leak detection are achieved, solving the problem of low efficiency when changing balloon catheters and ensuring the safety of equipment and patients.
WO2026124668A1 Publication Date: 2026-06-18NINGBO SHENGJIEKANG BIOTECH
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- NINGBO SHENGJIEKANG BIOTECH
- Filing Date
- 2025-12-12
- Publication Date
- 2026-06-18
AI Technical Summary
⚠Technical Problem
Existing liquid nitrogen cryoablation systems are inefficient when replacing balloon catheters, and the vacuuming equipment can easily damage the human body or equipment, posing safety hazards.
⚗Method used
A liquid nitrogen cryoablation system was designed, comprising a vacuum pipeline, a balloon catheter, a backing pump, a switching assembly, a vacuum sensor, and a leak detection device. Through the coordinated action of multiple switches and pumps, rapid vacuuming and real-time leak detection are achieved to ensure equipment safety.
🎯Benefits of technology
It improves vacuuming efficiency, reduces surgical time, ensures equipment safety, and avoids harm to the human body caused by damage to vacuum equipment.
✦ Generated by Eureka AI based on patent content.
Smart Images
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Abstract
Disclosed in the present disclosure is a liquid nitrogen cryoablation system, comprising a vacuum pipe, a balloon catheter, a backing pump, and a switch assembly. The balloon catheter comprises a vacuum layer, the vacuum pipe being connected to the vacuum layer. The switch assembly comprises a first switch, a second switch, a third switch and a fourth switch. The system further comprises a vacuum cavity and a molecular pump connected to the vacuum cavity, the molecular pump being connected to the backing pump by means of the first switch; the vacuum cavity is connected to the vacuum pipe, the second switch being arranged between the vacuum cavity and the vacuum pipe; the backing pump is connected to the vacuum pipe by means of the third switch; and the fourth switch is connected between the vacuum pipe and the vacuum layer of the balloon catheter. The molecular pump in the vacuum pipe and the backing pump of the device act on each part of the pipe separately or in combination, so that each part in the device can be pre-vacuumized, thereby reducing the time for vacuumizing the vacuum layer of the balloon catheter during the connection of the balloon catheter.
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