Synaptic Medical (beijing) Co. Ltd.

Sophia Wang Hansen

Jie Gong

Ji Feng

Xin Hua

Chang-sheng Ma

Changsheng Ma

A pericardium puncture needle assembly comprises a puncture needle () and a guide wire () capable of sliding in the puncture needle (); or comprises an outer sleeve () and a guide wire () capable of sliding in the outer sleeve (); or comprises an outer sleeve () and a puncture needle () and a guide wire () capable of sliding in the outer sleeve (), wherein after the puncture needle () is pulled out of the outer sleeve (), the guide wire () is capable of sliding in the outer sleeve (). The guide wire () is made of a highly elastic material and comprises a far-end bent segment (). The far-end bent segment () is formed by bending the guide wire () and has a preset bending shape, and is suitable for being recovered from a stretching state to the preset bending shape. The tip of the far-end bent segment has a pointed structure. The pointed structure has a far end and a near end, the far-end has a pointed end for puncturing, and the pointed end rotates by an angle of at least 90 degrees relative to the near end of the pointed structure on a length not more than 3 mm of the pointed structure. The puncturing direction of the guide wire () falls in a plane defined by a normal direction of a needle point plane of the puncture needle () or the outer sleeve () and an axial line of the puncture needle () or the outer sleeve (). When the pericardium puncture needle assembly is used for puncturing pericardium, the degree of twisting freedom of the guide wire () can be limited to some extent.

Pericardium puncture needle assembly

Disclosed is a pericardiocentesis needle component (), comprising a guide wire () and a puncture needle (). The guide wire () extends into and through the puncture needle (), and the guide wire () comprises a bent section () at the distal end and a straight section at the proximal end. The bent section () at the distal end is formed by bending the guide wire (), and the end of the bent section is a pointed-shape structure. The guide wire () is made of a highly elastic material. The pointed end rotates at least 90 degrees within a range of no more than 3 mm starting from the pointed end at the bent section () of the guide wire. The pericardiocentesis needle component () of the present invention is less likely to damage a heart during a pericardiocentesis procedure.

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Beijing, China

Sophia Wang Hansen