US 12,329,915 B2
Pulmonary artery stent
Dingguo Huang, Shanghai (CN); and Huan Xia, Shanghai (CN)
Assigned to SHANGHAI TENDFO MEDICAL TECHNOLOGIES CO., LTD., Shanghai (CN)
Filed by SHANGHAI TENDFO MEDICAL TECHNOLOGIES CO., LTD., Shanghai (CN)
Filed on Jan. 26, 2024, as Appl. No. 18/424,717.
Application 18/424,717 is a continuation of application No. 18/299,182, filed on Apr. 12, 2023, granted, now 11,925,544.
Application 18/299,182 is a continuation in part of application No. PCT/CN2020/142279, filed on Dec. 31, 2020.
Application 18/299,182 is a continuation in part of application No. PCT/CN2020/142278, filed on Dec. 31, 2020.
Claims priority of application No. 202011089653.3 (CN), filed on Oct. 13, 2020; application No. 202022267001.6 (CN), filed on Oct. 13, 2020; application No. 202011529587.7 (CN), filed on Dec. 22, 2020; and application No. 202023115274.5 (CN), filed on Dec. 22, 2020.
Prior Publication US 2024/0207035 A1, Jun. 27, 2024
Int. Cl. A61M 25/00 (2006.01); A61B 17/221 (2006.01); A61F 2/07 (2013.01); A61F 2/915 (2013.01); A61B 17/00 (2006.01); A61B 17/12 (2006.01); A61F 2/01 (2006.01); A61F 2/82 (2013.01); A61F 2/844 (2013.01); A61F 2/848 (2013.01); A61F 2/89 (2013.01)
CPC A61M 25/0074 (2013.01) [A61B 17/221 (2013.01); A61F 2/07 (2013.01); A61F 2/915 (2013.01); A61B 17/00234 (2013.01); A61B 17/12113 (2013.01); A61F 2/01 (2013.01); A61F 2002/016 (2013.01); A61F 2002/072 (2013.01); A61F 2002/828 (2013.01); A61F 2/844 (2013.01); A61F 2002/8483 (2013.01); A61F 2/89 (2013.01); A61F 2220/0016 (2013.01); A61F 2250/0003 (2013.01); A61F 2250/0068 (2013.01); A61M 2025/0008 (2013.01); A61M 25/003 (2013.01); A61M 2025/0057 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A drug injection thrombolysis system, comprising:
a delivery assembly, an external drug injection assembly, and a drug injection stent, wherein
the drug injection stent includes a drug delivery tube, a stent body capable of radical elastic expansion, and a thrombus filter, wherein
the stent body is fixed on the drug delivery tube, the stent body includes a plurality of elastic tubes forming a stent structure, the plurality of elastic tubes are connected to the drug delivery tube, a plurality of drug injection holes are provided on the plurality of elastic tubes; and
the thrombus filter is fixed on the drug delivery tube and located at a distal end of the stent body;
the delivery assembly includes a sheath tube for storing the drug injection stent and a delivery handle connected to the sheath tube;
the external drug injection assembly includes a drug injection connector, the drug delivery tube is penetrated into the delivery assembly, an outer end of the drug delivery tube is connected to the drug injection connector; and
the sheath tube is threadedly connected to the delivery handle, the sheath tube is a sheath tube capable of elastic retraction, and the sheath tube has a caliber larger than a diameter of an inlet of the delivery handle when naturally opened.