Stone extractor for residual bile duct calculi after ERCP (Endoscopic Retrograde
A technology for bile duct stones and stone extraction tools, which is applied in the field of medical devices
Pending Publication Date: 2022-07-08
中国人民解放军西部战区总医院
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Problems solved by technology
[0005] The purpose of the present invention is to provide a stone remover for residual bile duct stones after ERCP, aiming to solve the problem that the handle will rotate on the outer tube due to the torsion force generated during the process of taking out bile duct stones
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[0021] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.
[0022] In the description of the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientations or positional relationships indicated by "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather...
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The invention relates to the technical field of medical instruments, in particular to an ERCP postoperative residual bile duct calculus removing device which comprises a mounting mechanism, a calculus removing mechanism and a clamping mechanism. The mounting mechanism comprises an outer pipe, a rotating handle and a transparent pipe, the clamping mechanism comprises a pressing rod, a torsion spring, an abutting rod and a fixing assembly, the pressing rod is provided with a sliding groove, after the stone taking mechanism is ejected out of the transparent pipe through the rotating handle, the pressing rod presses the abutting rod in the direction close to the rotating handle, so that the abutting rod presses the rotating handle downwards, and when the abutting rod clamps the rotating handle in the outer pipe, the fixing assembly is fixed to the rotating handle. The fixing assembly pops out of the outer tube to fix the abutting rod to the outer tube, at the moment, force application to the pressing rod can be canceled, the bile duct calculus taking operation is conducted through the calculus taking device, and the problem that a rotating handle rotates on the outer tube due to torsion generated in the bile duct calculus taking process is solved.
Description
technical field [0001] The invention relates to the technical field of medical devices, in particular to a stone extractor for residual bile duct stones after ERCP. Background technique [0002] Bile duct stones are a common disease in surgery. Stones in the common bile duct can cause bile duct obstruction secondary to jaundice, cholangitis and even pancreatitis. In clinical practice, after ERCP stone removal, the residual bile duct stones need to be removed by a stone extractor. [0003] At present, the prior art (CN113662625A) discloses a stone extractor for residual bile duct stones after ERCP, and specifically relates to the technical field of medical devices. A stone extractor for residual bile duct stones after ERCP, comprising an outer tube and a rotary handle threadedly connected to one end of the outer tube, the rotary handle is provided with a transmission wire slidably connected in the outer tube, and the transmission wire is also coated with a The outer tube is...
Claims
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IPC IPC(8): A61B17/22
CPCA61B17/22A61B2017/22072A61B2017/22079
Inventor 翁敏牟东周德江张勇吴晓玲汤善宏薛红利杨德会
Owner 中国人民解放军西部战区总医院