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

Inactive Publication Date: 2013-02-13
史凤阳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the water absorption speed of the above two materials is relatively slow, about several hours to 24 hours, and the waiting time for patients is longer
In addition, the operation of placing the intrauterine device, the operation time is relatively short, it seems not applicable

Method used

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  • Liquid absorbing expansion type tract dilator

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Embodiment Construction

[0018] The liquid-absorbing expansion type cavity dilator provided by the present invention includes a liquid-absorbing expansion section 1 made of a columnar liquid-absorbing expansion material and a tail wire 2 directly threaded at the tail of the liquid-absorbing expansion section.

[0019] The material of the liquid-absorbing swelling section of the present invention is a well-known high-performance water-absorbing resin. The well-known water-absorbing resin is a functional polymer material with a large number of hydrophilic groups. It has high liquid absorption capacity and high liquid absorption. Speed ​​and high liquid retention capacity are used in agriculture and horticulture (such as water-retaining agent and soil conditioner), industry (such as moisture-proofing agent, oil field displacing agent, dehydrating agent of organic solvent, thickening agent, water-soluble paint, etc.), medical hygiene (For example, it is used as a base medical material for sanitary napkins, ba...

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PUM

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M29/04
Inventor 武小锋付妍李翠史凤阳
Owner 史凤阳
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