Adjustable uterine curet

Abstract

The invention belongs to the technical field of medical apparatus and instruments, and relates to an adjustable uterine curet. The design that a curet head, a curet neck and a curet handle are separated is adopted, an adjusting button is additionally arranged on the curet handle, the size and the curvature of the curet head can be controlled in the uterine curettage operating process by pushing and pulling the adjusting button according to requirements, and the curet head is made to completely meet the shape requirement of the uterine cavity. An exposure part of a curet core is naturally curved and of a hollow oval ring shape, the size of a hollow oval ring of the exposure part is controlled to change by utilizing metal toughness of the hollow oval ring and stretching the curet core in the curet neck, and the curet neck has curve radians, so that the larger the exposure part of the curet core is, the larger the curvature of the curet head is, and surgical operation of the anteflexion of the uterus can be conveniently conducted. Scales are marked on the curet neck, and therefore a doctor can conveniently check the depth of the curet for stretching into the uterus in the operation process at any time. The adjustable uterine curet is reasonable in whole structural design, ingenious in concept, convenient and flexible to use, and capable of saving time and labor, and the size and the curvature of the curet can be adjusted at will.

Description

Technical field: [0001] The invention belongs to the technical field of medical instruments, and relates to an adjustable uterine curette for gynecology, which can be widely used in gynecological abortion and segmental curettage operations, and is used to scrape the inner wall of the uterus and residual tissues in the uterine cavity. Background technique: [0002] As a common surgical instrument in gynecology, curettes are widely used in gynecological diagnostic curettage and obstetrics and gynecology abortion operations. Currently, the curettes commonly used in hospitals are divided into three types: large, medium and small according to the size of the curette head and the length of the curette neck. Model, large curette with long diameter and wide ring is used for uterine curettage after childbirth or induced labor in obstetrics, while small and medium-sized curettes are mostly used in gynecological diagnostic curettage and early pregnancy abortion operations; the normal hu...

AI Technical Summary

Problems solved by technology

[0002] As a common surgical instrument in gynecology, curettes are widely used in gynecological diagnostic curettage and obstetrics and gynecology abortion operations. Currently, the curettes commonly used in hospitals are divided into three types: large, medium and small according to the size of the curette head and the length of the curette neck. Model, large curette with long diameter and wide ring is used for uterine curettage after childbirth or induced labor in obstetrics, while small and medium-sized curettes are mostly used in gynecological diagnostic curettage and early pregnancy abortion operations; the normal human uterus is in an inverted pear shape as a whole , the capacity of the uterine cavity is about 5ml. Under pregnancy and abnormal physiological conditions, the size of the uterine cavity will increase accordingly. In the process of abortion or dilatation and curettage, the uterus will shrink due to muscle contraction as the operation progresses. At the same time, the cervix will also be narrowed accordingly. At this time, it is necessary to replace the curette with a small size according to the size of the uterine cavity and the stenosis of the cervix to adapt to the changing uterus. Therefore, the degree of fit between the size of the curette and the uterus is the key to the success of the curettage operation. The key point is that if the uterine cavity is large and there are more substances in the cavity, and the curette used is small, it needs to be scraped bit by bit, so that the operation time will be prolonged accordingly; if the uterine cavity is small and the cervix is ​​narrow, and the curette used If the curette is large, the cervix needs to be bluntly dilated before the head of the curette enters the uterine cavity, and the curettage will cause damage to the inner wall of the uterine cavity due to the larger curette, and even penetrate the inner wall of the uterus to cause uterine perforation; The curette used has the following defects: First, the size of the curette head is fixed. In order to be able to enter the uterine cavity for operation, the operation of dilating the cervix is ​​usually performed first for patients with a tight cervix, which often causes damage to the cervix of the patient. Secondly, the curvature of the curette is not enough, it is difficult to reach the fundus of the uterus, and it is easy to cause tissue residue in the uterine cavity during the curettage process; thirdly, there is no clear scale mark on the curette, and the doctor completely relies on the visual distance to perceive the curette during the curettage operation Into the depth of the uterine cavity, the accuracy is poor, and the risk of uterine perforation is high

[0003] In recent years, some doctors have made corresponding improvements to the traditional curette. For example, the hollow oval ring at the head end of the curette is designed in the shape of a spoon, which is conducive to the scraped tissue being pushed out of the uterine cavity more conveniently, and will not be affected by scraping. The hollow part at the end of the spoon is scattered in the uterine cavity, causing tissue residues. However, this improvement is only a change in shape, and the size of the curette cannot be adjusted at will. During the operation, the curette needs to be replaced according to the suitability of the size and model. It causes a waste of operation time and increases the chance of infection during the operation; considering the curvature of the uterine cavity, some physicians design the head of the curette as a curette that can adjust the degree of curvature, and pass the curette head and the curette handle through the curette neck Connected together, the curette neck and the curette handle are both hollow structures, and a movable joint is set between the curette neck and the curette handle, and a curette head adjustment knob is arranged on the curette handle, and the curette head adjustment knob It is connected with one end of the traction rope, and the other end of the traction rope passes through the movable joint and the neck of the curette and is fixed on the curette head. The bending degree of the curette head is controlled by adjusting the knob, so that the curette can fit the uterine cavity more Reduce tissue residue during curettage, but the adjustment knob in this design is more mobile, the operation is not strong, and the problem of adjusting the size of the curette head is not considered; therefore, the present invention designs a new adjustable gynecological Use the uterine curette to adjust the overall structure of the curette, so that the size and curvature of the curette head can be adjusted accurately, with a scale icon to accurately control the depth of the curette into the uterine cavity, which is convenient for accurate and safe operation of curettage

Images