Liquid absorbing expansion type tract dilator

A technology of absorbing liquid to expand and dilator, applied in dilators, surgery, etc., can solve the problems of slow water absorption, inapplicability, short operation time, etc., and achieve the effect of strong water absorption capacity
CN102921097AInactive Publication Date: 2013-02-13ε²ε‡€ι˜³
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
ε²ε‡€ι˜³
Publication Date
2013-02-13
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a liquid absorbing expansion type tract dilator. The tract dilator is formed by connecting a columnar liquid absorbing expansion section to a tail wire at the tail of the liquid absorbing expansion section, wherein the liquid absorbing expansion section is water absorbing resin. The liquid absorbing expansion section is super-smooth in water and can be smoothly inserted into a tract; and the water is mainly filled in the space in a liquid absorbing expansion material in front dozens of seconds of water absorption, so the volume of the dilator is changed little, and insertion of the dilator into the tract for use is not affected.
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Description

Technical field

[0001] The invention relates to a cervix dilator, in particular to a liquid absorbing and expanding cervical dilator. Background technique

[0002] ZL90210761.5 discloses a gelatin cervical dilation plug. The gradual expansion by absorbing water reduces the pain caused by the mechanical rigid expansion of the traditional cervical dilator.

[0003] A seaweed cervical dilation rod sold on the market is suitable for childbirth, artificial abortion, and hysteroscopic surgery. It also uses water to gradually expand.

[0004] However, the water absorption speed of the above two materials is relatively slow, about several hours to 24 hours, and the patient has a long waiting time. In addition, the operation time for placing the intrauterine contraceptive device is relatively short, which is not suitable. Summary of the invention

[0005] The purpose of the present invention is to provide a liquid absorbing and expanding cavity dilator to overcome the defects in the known t...

Claims

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