Abstract: A safety thrombectomy device, comprising: a handle (1); a hollow outer tube (2); a hollow inner core tube (3) having a first inner core segment located in a through hole in the outer tube (2), a second inner core segment extending from the front end of the outer tube (2), and a third inner core segment extending from the rear end of the outer tube (2); a thrombus crusher (5) provided at the front end of the outer tube (2); a thrombus collector (4) connected to the front end of the second inner core segment of the hollow inner core tube (3) and located in front of the thrombus crusher (5); a tee joint (6) provided at the front end of the handle (1) and having a free end (10) used for injecting normal saline; an adjusting knob (7) provided on the handle (1) and capable of moving with respect to the handle (1) to drive the outer tube (2) to move back and forth; a locking knob (8) provided on the handle (1) and used for locking the adjusting knob (7) after the outer tube (2) moves to a preset position; and an inj

Abstract: A Z-shaped braided stent capable of being implanted into a human organ. The Z-shaped braided stent comprises: a first tubular wire mesh having N braided rings and formed by continuously braiding first braid wires (I) in a Z shape, each braided ring of the first tubular wire mesh having a plurality of first bending points (A) formed by bending the first braid wires (I) and distributed at intervals; and a second tubular wire mesh having N braided rings and formed by continuously braiding second braid wires (II) in a Z shape, each braided ring of the second tubular wire mesh having a plurality of second bending points (B) formed by bending the second braid wires (II) and distributed at intervals. By hooking the first bending points (A) with the second bending points (B), the second tubular wire mesh and the first tubular wire mesh are connected together to form the Z-shaped braided stent. The braided stent can be subjected to axially deformable compression, but axially basically non-deformable stretching.

Abstract: An antibiotic susceptibility testing device of gram-negative bacteria, as well as a corresponding method, are discussed. The device has a temperature control unit (including a constant temperature chamber) and a contactless conductivity-based measurement system. Disposable glassy or PVC tubes are used as test vessels for AST. In the performance of AST assay, appropriate kind of liquid medium containing identical amount of target bacterial cells and target antibiotics at different concentrations are loaded into test tubes, following by incubation in the device at a setup temperature. The bacterial growth profile is monitored by collecting the differential values (?C) of conductivity of liquid medium, which depend on the proliferation of viable cells. Outcome of ?C indicates whether the target bacterial cells are completely inhibited by the test antibiotic or not, enabling the user to judge the value of the minimal inhibitory concentration (MIC) simply.

Abstract: An antibiotic susceptibility testing device of gram-negative bacteria, as well as a corresponding method, are discussed. The device has a temperature control unit (including a constant temperature chamber) and a contactless conductivity-based measurement system. Disposable glassy or PVC tubes are used as test vessels for AST. In the performance of AST assay, appropriate kind of liquid medium containing identical amount of target bacterial cells and target antibiotics at different concentrations are loaded into test tubes, following by incubation in the device at a setup temperature. The bacterial growth profile is monitored by collecting the differential values (?C) of conductivity of liquid medium, which depend on the proliferation of viable cells. Outcome of ?C indicates whether the target bacterial cells are completely inhibited by the test antibiotic or not, enabling the user to judge the value of the minimal inhibitory concentration (MIC) simply.