Cannula for aortic perfusion

By designing cannulas with independent blood perfusion, balloon, and exhaust channels, the problem of ineffective perfusion in existing technologies has been solved, achieving stable blood supply to the lower body organs, reducing the risk of ischemia and hypoxia, and improving the reliability and safety of the surgery.

CN224307626UActive Publication Date: 2026-06-02FOURTH MILITARY MEDICAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOURTH MILITARY MEDICAL UNIVERSITY
Filing Date
2025-01-22
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing technologies lack readily available balloon-loaded vascular catheters, making it impossible to provide effective and reliable lower body perfusion. Furthermore, commercially available balloon-loaded perfusion catheters lack independent exhaust and balloon channels, making them unsuitable for total aortic arch replacement combined with descending aortic elephant trunk stent surgery. This results in a high risk of lower body organ ischemia and hypoxia during the procedure.

Method used

A cannula for aortic perfusion was designed, comprising independent blood perfusion channels, balloon channels, and venting channels. Balloon inflation and venting are achieved through independent valves and outlet tubes, ensuring the stability and effectiveness of the perfusion process.

Benefits of technology

This improves the reliability and stability of the surgery, ensures effective perfusion of the lower body organs during surgery, reduces ischemic and hypoxic damage, and enhances the safety and effectiveness of the surgery.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224307626U_ABST
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Abstract

The utility model relates to heart and lung surgery extracorporeal circulation instrument technical field, especially point to a kind of intubation for aortic perfusion, it includes pipe head, tube body and balloon, pipe head and tube body are all hollowly arranged, and blood perfusion passage is formed in tube body;The front end of pipe head is communicated with the rear end of tube body, and the sidewall of the front end of tube body is respectively provided with first through-hole and second through-hole, first through-hole is located inside balloon, and the both sides of tube body are respectively provided with balloon channel and exhaust channel, the rear end of balloon channel is connected with first lead-out pipe, the rear end of exhaust channel is connected with second lead-out pipe, the rear end of first lead-out pipe is provided with first valve, and the rear end of second lead-out pipe is provided with second valve.The utility model realizes the inflation of balloon, realizes the blockage of blood vessel;The gas generated in perfusion blood supply process is extracted, and the effectiveness of perfusion blood supply is further improved;Blood perfusion passage, balloon channel and exhaust channel are respectively separated and independently work, and work reliably and stably.
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