Disposable balloon uterine manipulator

Abstract

The invention provides a disposable balloon uterine manipulator. The disposable balloon uterine manipulator includes a central guide rod, wherein a dome cup sleeves the central guide rod, and can freely slide in the axial direction of the central guide rod; the dome cup includes a cup body and a cannula communicating with the cup body; the inside of the cup body is opened in an inner narrow and outer wide manner; a wrapping flange is arranged outside the cup body; and a ring ridge and a grating belt is arranged on the wrapping flange, and is conductive to determination of the cutting length of a vagina and reduction of dissemination of tumor. The uterine manipulator is a disposable apparatus, and can avoid iatrogenic cross infection. Besides, the central guide rod with the S-shaped structural design can adapt to the normal physiological flexibility formed by a corpus uteri, a vagina and a pelvis; two sections of scales on the central guide rod can be used for direct or indirection measurement of depth of a uterine cavity; and the top end of the central guide rod is provided with an elastic aqueous capsule which is communicated with an injection pipe in the central guide rod, so that the situation that perforation of uterus can be effectively avoided when the uterus is lifted and stability and accuracy during the process of lifting the uterus can be increased.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a disposable balloon uterine lifter. Background technique [0002] There are the following problems in various traditional uterine lifters widely used at present: 1. Most of them are non-disposable instruments, which need to be sterilized repeatedly, and cross-infection is easily caused when the disinfection is not strict; 3. The top of the central guide rod is usually a thin rod, hard and sharp, which can easily cause uterine perforation. Moreover, since the top of the central guide rod has too much free space in the uterine cavity, the stability and accuracy of the swinging uterus may be reduced. 4. The size of the traditional dome cup is usually represented by large, medium, and small sizes. There are few choices, and it is easy to cause a mismatch between the size of the dome cup and the cervix, resulting in incomplete exposure of the dome or excessive vaginal exposu...

AI Technical Summary

Problems solved by technology

[0002] There are the following problems in various traditional uterine lifters widely used at present: 1. Most of them are non-disposable instruments, which need to be sterilized repeatedly, and cross-infection is easily caused when the disinfection is not strict; 3. The top of the central guide rod is usually a thin rod, hard and sharp, which can easily cause uterine perforation

Moreover, since the top of the central guide rod has too much free space in the uterine cavity, the stability and accuracy of swinging the uterus may be reduced

4. The size of the traditional vault cup is usually represented by large, medium, and small sizes. There are few choices, which may easily cause the size mismatch between the vault cup and the cervix, resulting in incomplete exposure of the vault or excessive vaginal exposure

Although the traditional dome cup can expose the vagina, the judgment of the length of the resected vagina is entirely based on the experience of the surgeon, which may easily lead to errors

Insufficient vaginal resection is likely to cause tumor recurrence; on the contrary, excessive vaginal resection may affect the quality of sexual life of patients

Moreover, since the traditional dome cup cannot seal the gap between the mouth of the cup and the cervix, for some tumors, especially cervical cancer, the cervical tumor cells originally located in the vagina may Entering the body through the open abdominal cavity, or planting on the vaginal stump, resulting in postoperative tumor recurrence, which is also the biggest disadvantage of traditional uterine lifters in cervical cancer surgery

In addition, the central guide rod of the cross-shaped palace lifter is a thin metal rod, such as Figure 5 As shown, the tip is hard and sharp. If the force is not appropriate when lifting the uterus, the tip may penetrate the uterine wall, which not only makes it difficult to lift the uterus, but also may bring the tumor in the uterus into the abdominal cavity.

And because the thin rod has too much room for movement in the uterine cavity, it may cause the uterine body to shake, resulting in a decrease in the stability and accuracy of lifting the uterus

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