A kind of uterine expansion rod for obstetrics and gynecology

Abstract

The invention discloses a uterine expansion rod for obstetrics and gynecology, which belongs to the field of medical equipment, and includes a swing rod connected in sequence, an extension rod and a handle. And the expansion tube sleeved on the outside of the inner cavity tube, and a cavity is formed between the two, and the outer surface of the expansion tube is attached and wrapped with an elastic film sleeve; the top of the elastic film sleeve is sunk into the opening at the upper end of the inner cavity tube, and the piston body Press it on the inner cavity tube; the lower part of the inner cavity tube is provided with capillary hole one, and the expansion tube is covered with capillary hole two; the swing rod and the extension rod are connected by rotation through the ball block and the spherical groove, and the lower part of the ball block is provided with a cone groove. One side of the body groove is provided with a bar-shaped groove, and a slider is slidably connected in the bar-shaped groove, and the lower part of the slider is connected with the driving rod; The uterine expansion effect of the present invention is in line with the expectation, the liquid medicine carrying capacity is large, and the control is good; the angle adjustment operation is precise and easy to control, and the application is convenient.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a uterine expansion rod for obstetrics and gynecology. Background technique [0002] Uterine expansion operation is a common operation in the process of diagnosis and treatment of gynecological diseases. In the process of diagnosis and treatment of gynecological diseases, in order to accurately grasp the patient's symptoms, clinicians need to use a uterine expansion rod to expand the uterine ostium to find out Conditions in the uterine cavity. When in use, due to the special physiological function of cervical os contraction, dilation rods with diameters from thin to thick and with gradually decreasing bending angles are usually required to perform dilation operations one by one. Repeated replacement of dilation rods will not only lead to prolongation of operation time, And it will increase the pain of the patient, and even because of the large number of uterine dilators used, the ...

AI Technical Summary

Problems solved by technology

But it has the following disadvantages: first, the silicone colloid and polyvinyl alcohol membrane may be heated and moistened before reaching the cervix and expand, causing the diameter of the expansion rod to be larger than expected, which is not convenient for the dilation operation; The amount of injection solution carried on the vinyl alcohol film is small, and the expansion rod will be squeezed out of the polyvinyl alcohol film in advance during the process of extending to the cervix, and the drug control is poor; Plasticity realizes the demand for angle adjustment, and its angle control is not precise enough

However, it has the following disadvantages: medical staff manually push and pull the clamp, and its force control is unstable, which may lead to a large mutation of the angle, thereby causing greater pain or even damage to the patient.

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