The utility model relates to a double-balloon vertebral body dilating catheter which comprises a balloon assembly, a cannula assembly and a handle assembly. The cannula assembly comprises an outer tube, a support tube and two liquid injection channels, the outer tube is externally arranged on the outside of the support tube, the two liquid injection channels are arranged in a zone between the outer tube and the support tube, a support wire is inserted in the support tube, and two liquid outlet holes which are communicated with two liquid injection tubes in a one-to-one correspondence manner are formed in the outer tube; the balloon assembly comprises two balloons,

The utility model provides a rotatable hose fixtures, including a stepper motor, a left cover and right cover, the spacer sleeve and the intake valve, the stepper motor includes a housing, shaft and positioning control, the positioning the tube from left to right through the housing and the housing is fixed, the interval condom provided in the positioning of the left end of the tube and the positioning tube is fixed, this hose fixture rotatable has designed a sealed structure, so that by the air pressure hose set in a closed structure is fixed, just control the gas inflow and outflow can achieve precise handling hoses,

The utility model provides a disposable polypectomy, comprising a handle, ferrule, the outer tube, boosting agency and insulating tube, one end of the outer tube and the ferrule holder, the other end of the boost mechanism connecting the handle is fixedly connected to the booster mechanism, said insulating sleeves provided on the boost mechanism, further comprising an insulating tube fixed to the boost mechanism fasteners, such disposable polyp In addition to the use of the insulating tube removal device itself elastic sliding resistance between the institutions and boost further through the addition of one end of the insulating tube holder firmly fixed, greatly reducing the possibility of co-putt exposed to ensure that the With this disposable polypectomy's security, reduce the risk of burns to the patient or medical staff.

The utility model provides a hot biopsy forceps, comprising a handle, clamp, the outer tube, boosting agency and insulating tube, one end of the outer tube is fixed to the clamp, the other end is connected to the booster mechanism, The handle is fixedly connected to the booster mechanism, said insulating sleeves provided on the boost mechanism, further comprising an insulating tube fixed to the boost mechanism holder, in addition to using this hot biopsy forceps elastic insulating tube itself sliding resistance between the institutions and boost further through the addition of one end of the insulating tube holder firmly fixed, greatly reducing the possibility of co-putt exposed to ensure that the use of such heat biopsy forceps safety, reduce the risk of burns to the patient or medical staff.

The utility model provides a rapid folding balloon catheter device comprising a folding mechanism, PLC controller and for supporting the base of the balloon catheter, said folding mechanism including motors, spindles, four working rod, left support board and the right support plate, the PLC controller via the drive circuit connected to the motor output shaft of the motor is connected to the main shaft through the coupling, the balloon quickly folding device