Disposable Injectable Cervical Dilation Rod

Abstract

The invention relates to a disposable injection-type cervical dilation rod, comprising a uterine dilation head, a liquid-guiding connecting rod and an injection connecting head. The liquid-guiding connecting rod is provided with a liquid-guiding hole groove along the length direction, and the injection connecting head and The dilation heads are respectively arranged at both ends of the liquid guiding rod. The dilation head includes a hydrophobic liquid guiding head and a hydrophilic expansion head. The hydrophobic liquid-guiding head is provided with a drainage groove that communicates with the liquid-guiding hole groove along the length direction, the hydrophilic expansion head is arranged on the outer peripheral wall of the hydrophobic liquid-guiding head, and the injection connecting head is far away from the liquid-guiding rod A syringe is attached to one end. The invention can make the cervical canal expand gently within 30 seconds, is safe, has remarkable effect, and effectively relieves the pain of the patient.

Description

technical field [0001] The present invention relates to the technical field of medical instruments, in particular to a disposable injectable cervical dilation rod. Background technique [0002] In obstetrics and gynecology examinations and operations, cervical dilation is the most common surgical item, and it is also the premise for various uterine examinations, operations, and labor induction; the commonly used methods of uterine expansion include drugs and physical methods. Uterine dilation mainly adopts mechanical forced dilation device and hydrophilic cervical dilator. [0003] The mechanical forced dilator is repeatedly inserted into the cervix from small to large during the dilation process, which is easy to rupture the capillaries on the surface of the cervix and cause intrauterine infection, which increases the pain of the patient, and even causes uterine perforation, causing Abortion syndrome, etc. [0004] The commonly used hydrophilic cervical dilator has seawee...

AI Technical Summary

Problems solved by technology

[0003] The mechanical forced dilator is repeatedly inserted into the cervix from small to large during the dilation process, which may easily rupture the capillaries on the surface of the cervix and cause intrauterine infection, which increases the pain of the patient, and even causes uterine perforation, causing induced abortion syndrome

[0004] The commonly used hydrophilic cervical dilators are seaweed expansion sticks. After the seaweed expansion sticks are placed into the cervical canal, they will expand by absorbing the water in the cervical secretions, thereby dilating the cervical canal. However, the seaweed sticks should be placed more than 12 hours in advance. After the seaweed stick is placed in the cervix, it is inserted into a piece of sterile dry gauze. The patient should reduce activities to prevent the expansion stick from falling off; it is generally required to take out the seaweed stick within 24 hours. Part of the uterine cavity remains; the seaweed stick takes a long time to expand, which is easy to cause intrauterine infection, and is easy to break, which poses risks to the operation

[0005] Therefore, in order to solve the problems of long expansion time and susceptibility to infection of existing expansion rods, the present invention provides a cervical dilation rod that can quickly absorb water and expand, which not only avoids complications such as cervical laceration and infection caused by traditional metal expansion rods , and the expansion time is short

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