Puncturing hole auxiliary expanding device and puncturing surgery system

Abstract

The invention relates to a puncturing hole auxiliary expanding device and a puncturing surgery system. The puncturing hole auxiliary expanding device comprises a connector, an air sac and a cutting piece, wherein a duct communicates with the connector; a puncturing head is arranged at one end away from the connector, of the duct; the air sac communicates with the duct; the air sac has a small-sizecontraction state and a large-size expanding state; the cutting piece is arranged on the air sac and can be tightly attached to the outer wall of the air sac; the air sac gradually expands, so that the size is increased to enter the expanding state; and the cutting piece is arranged on the outer wall of the air sac, and can cut interatrial septum tissue at a hole wall of the puncturing hole by extruding thrust of the air sac wall, so that the puncturing hole is gradually expanded, namely finally, the puncturing hole of which the hole diameter can meet requirements can be obtained. Through theadoption of the puncturing hole auxiliary expanding device disclosed by the invention, some treatment apparatuses having large sizes used in subsequent surgery can penetrate through the expanded puncturing hole to enter an adjacent atrium, so that surgeries can be normally performed, the surgery operation efficiency is improved, and the surgery implementation difficulty is reduced.

Description

technical field [0001] The invention relates to the technical field of medical machinery, in particular to a puncture hole auxiliary expansion device and a puncture operation system. Background technique [0002] At present, in some minimally invasive operations, such as atrial septostomy, it is necessary to puncture the atrial septum by means of puncture to form a hole, and the purpose of delivering surgical instruments is achieved through the retrograde puncture of the atrial septum. [0003] However, because the puncture hole formed by the existing puncture needle has a small diameter, generally only about 0.3 mm, it can only allow the guide wire to pass through, and for some follow-up treatment instruments with larger volumes, it cannot pass through. If the puncture hole enters the adjacent atrium, the operation cannot be carried out normally, which increases the difficulty of the operation and affects the efficiency of the operation. Contents of the invention [0004...

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a puncture hole auxiliary expansion device and a puncture surgery system, aiming at solving the problem that the prior art treatment instruments cannot pass through the puncture hole, which increases the difficulty of the operation and makes the operation difficult to perform normally and efficiently.

Images