Puncture Device And Sheath Tube

Abstract

A puncture device (1), comprising: a puncture base (10), a protective sleeve (60), a disassembling/assembling assembly (50) and a puncture assembly (40). One end of the protective sleeve (60) is provided with a mounting hole (610); the protective sleeve (60) is sleeved on the puncture base (10); the disassembling/assembling assembly (50) is connected to the end of the protective sleeve (60) having the mounting hole (610); and a tip (43) of the puncture assembly (40) sequentially passes through the disassembling/assembling assembly (50) and the mounting hole (610) to be in driving connection with the puncture base (10). Also provided is a sheath tube, comprising: a sheath tube body (11) and a first thread structure (12) and a first horizontal stripe structure (13) provided on an outer wall of the sheath tube body (11). The first thread structure (12) is provided at a first end of the sheath tube body (11); the first horizontal stripe structure (13) is provided between the first thread structure (12) and a second end (14) of the sheath tube body (11) in an axial direction of the sheath tube body (11); and horizontal stripes of the first horizontal stripe structure (13) are patterns perpendicular to the axial direction of the sheath tube body (11). After the puncture device (1) is used, it is unnecessary to spend additional time disinfecting the puncture base (10) and then disassemble/assemble the puncture assembly (40), so that the corrosion effect possibly generated by a disinfection agent on the puncture base (10) is avoided, the service life of the puncture base (10) is prolonged, and damage to a sterile environment for the puncture assembly (40) is avoided while quick disassembling/assembling of the puncture base (10) and the puncture assembly (40) is achieved. By using the first thread structure (12) and the first horizontal stripe structure (13), a friction force with an incision tissue is increased, thereby improving the stability of fixing the sheath tube in an incision.

Dependencies are inferred from the claim text.