3 results about "Dilator" patented technology

A vaginal dilator for cervical examination and surgery comprises an upper dilation piece and a lower dilation piece, wherein the upper dilation piece comprises an upper wing and a pressing handle thatis integrated with the upper wing and extends downwards in the direction having an obtuse angle with one side of the upper wing; the lower dilation piece comprises a lower wing and a grab handle thatis integrated with the lower wing and extends downwards in the direction close to a right angle along one side of the lower wing; two sides of the rear ends of the upper wing and the lower wing are connected with shaft holes through shaft pins; the pressing handle and the grab handle are positioned through a first dilation positioning device and are correspondingly accommodated in an upper auxiliary wing and a lower auxiliary wing on inner side surfaces of the upper wing and the lower wing. The vaginal dilator is characterized by further comprising a positioning connecting piece and a seconddilation positioning device meshed with the side dilation piece, and one kind of grab handle is provided with a destruction strip at the position corresponding to a lower auxiliary wing buckle. The device is simple in structure, easy and convenient to operate, easy to manufacture, economical, practical, and safe and effective to use.

The invention belongs to the technical field of medical apparatus and instruments, and discloses a robot arm rectoscope system which comprises: a robot arm with a clamping mechanism fixed to the tail end; a rectoscope which is detachably connected with the robot arm through the clamping mechanism, wherein the rectoscope comprises a fixing seat clamped by the clamping mechanism, an endoscope tube which is fixed in the fixing seat in a penetrating manner and comprises an operation front end and an operation rear end, wherein an expander is arranged at the operation front end of the endoscope tube, and the dilator comprises at least two dilation pieces arranged on the outer side of the endoscope tube in an array mode, the dilation pieces are combined to form a structural form with a small front end and a large rear end, and when the endoscope tube stretches into the dilation pieces, the dilation pieces are driven to dilate outwards synchronously; and a locking mechanism which is connected between the dilation pieces and the endoscope tube, and is used for switching the fixed fit between the dilation pieces and the endoscope tube into sliding fit in the process of inserting the dilation pieces into the anus of a patient.

The invention belongs to the field of medical equipment, particularly relates to urinary surgery calculus grabbing equipment capable of preventing infection, and provides the following scheme aiming at the problems that in the using process of existing grabbing equipment, the using length is inconvenient to adjust, calculus is inconvenient to protect, the urethra is prone to being damaged and infected, and the treatment effect is reduced. The device comprises a shell, a first sliding groove is formed in one side of the shell, a sliding column is slidably mounted in the first sliding groove, a connecting plate is fixedly connected to one side of the sliding column through welding, a second sliding groove is formed in the other side of the shell, a mounting plate is slidably mounted in the second sliding groove, a first through hole is formed in the mounting plate, and a grabbing mechanism is arranged on the mounting plate; in the use process, the use length can be conveniently adjusted, calculi can be conveniently protected, the urethra can be prevented from being injured and infected, the treatment effect is improved, and the urethra dilator is simple in structure and convenient to use.