Negative-pressure Paracentesis Syringe and Use Thereof
AssigneeHangzhou Sightnovo Medical Technology Co., Ltd.
InventorChan Zhao
Life of this patent
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Abstract
The present invention discloses a disposable negative-pressure anterior chamber Paracentesis syringe which belongs to the technical field of medical supplies. It comprises nine parts, including a needle cap, a Paracentesis syringe, a needle base, an internal needle, a protective cover of the internal needle, an airlock, a needle tube, a collection tube and a collection tube rack. The invention has the advantages that it fixes the Paracentesis syringe during puncture and limits the depth of the needle insertion, releases the aqueous humor slowly to prevent a sudden drop of the intraocular pressure, reduces the risk of the intraocular infection by separating the anterior chamber from outside and the collection tube can collect and store the aqueous humor directly.
Claims15
A paracentesis syringe, comprising:
- a needle having a paracentesis end and an internal portion;
- a needle base configured to hold the needle;
- a syringe barrel, within which the needle base is at least partially fitted;
- a collection tube having an opening and a body for collecting aqueous humor;
- an airlock situated at the opening of the collection tube, wherein the airlock is configured to engage the syringe barrel and, when in use, to be penetrated by the internal portion of the needle;
- and
- a collection tube rack connected to the collection tube and configured to move the collection tube and the airlock along the syringe barrel.
Dependencies are inferred from the claim text.