Deformable cervical support

Abstract

The invention discloses a deformable cervical support. The deformable cervical support comprises an inner ring body (1), an outer ring body (2) and a valve body (3), wherein the inner ring body (1) is a hollow ring body, and a hollow ring sleeve (12) is defined by the inner ring body (1) in a surrounding mode and used for sleeving the cervix uteri; the outer ring body (2) is a hollow ring body, and a cylindrical inner space (23) is defined by the outer ring body (2) in a surrounding mode; the inner ring body (1) is positioned in the inner space (23) of the outer ring body (2); the inner ring body (1) and the outer ring body (2) are jointed together to jointly define a closed cavity; the valve body (3) is mounted on the outer ring body (2) and is in fluid communication with the closed cavity; and the deformation of the inner ring body (1) is greater than the deformation of the outer ring body (2) under the action of the same force. By means of the deformable cervical support, different amounts of liquid or gas are injected into the closed cavity, and the shape of a cervical opening can be adjusted according to requirements.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a deformable cervical support. Background technique [0002] Cervical insufficiency is also known as cervical insufficiency or cervical relaxation. In patients with cervical insufficiency, the cervix contains less fibrous tissue, elastic fibers, and smooth muscles, or due to the rupture of fibrous tissue in the internal os of the cervix, the ability of the isthmic sphincter is reduced, resulting in pathological expansion and relaxation of the cervix. The manifestations of cervical insufficiency are mainly reflected in premature labor and recurrent miscarriage in the middle and late stages, and the incidence rate of recurrent miscarriage is 8% to 15%. [0003] For the above-mentioned cervical insufficiency, the existing technical scheme is to adopt cervical cerclage, and utilize the operation needle rear end to wear thread to tie up the cervix. Therefore, cervical cerclage is ...

AI Technical Summary

Problems solved by technology

[0006] 1. Some pregnant women who found cervical insufficiency in the third trimester have lost the opportunity to place it because the cervix is ​​too dilated

[0007] 2. When the cervix is ​​stimulated, it will initiate uterine contractions, which will cause the continuous dilation of the cervix. The existing cervical pessary can only maintain the state of the cervix when it is placed, and does not have the function of resisting the expansion inwards and blocking the cervix.

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