Back to results
US 12,721,647 B2Granted
Puncture instrument
AssigneeBeijing Medis Medical Technology Co., Ltd.
InventorsMeng Hu, Dong Guo
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a puncture system, which can be applied to a puncture operation with electromagnetic combined with ultrasound navigation to achieve a safe, precise, efficient and easy-to-operate puncture procedure.
Claims18
A puncture instrument, comprising:
- a puncture needle which comprises a sensor mounting portion capable of mounting an electromagnetic sensor,
- wherein the puncture instrument comprises an interventional catheter instrument, which comprises:
- a guide tube;
- and
- a flexible sleeve which sleeves outside the guide tube;
- wherein the flexible sleeve and the guide tube are capable of moving relatively to each other so that a distal end of the flexible sleeve extends beyond a distal end of the guide tube, or the distal end of the guide tube extends beyond the distal end of the flexible sleeve,
- wherein the distal end of the flexible sleeve is provided with a shrunk portion, an inner diameter of the shrunk portion is smaller than an outer diameter of the guide tube, and the shrunk portion is provided with a weakened portion which is easy to be damaged;
- when the interventional catheter instrument abuts against a puncture target, the weakened portion is capable of being destroyed by causing the guide tube to move to the distal end relative to the flexible sleeve, so that the guide tube extends beyond the distal end of the flexible sleeve;
- wherein the weakened portion extends to a distal opening of the flexible sleeve;
- and
- wherein the weakened portion is provided on an inner surface or an outer surface of the shrunk portion.
8 more elements
Dependencies are inferred from the claim text.