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Novel tissue expander

A dilator and tissue technology, applied in the field of medical devices, can solve problems such as patient injury and damage to the patient's anal sphincter, and achieve the effect of alleviating pain and avoiding anal fissures.

Active Publication Date: 2011-03-30
TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the doctor pre-expands the anus with his fingers, he often damages the patient's anal sphincter due to excessive force in an instant, causing anal fissure and causing the patient to suffer undue injury.

Method used

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Examples

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Embodiment Construction

[0027] The invention discloses a novel tissue expander, which is used for the expansion of the anus and the anal canal, and as an auxiliary instrument for subsequent anal canal operations.

[0028] Such as figure 1 As shown, the novel tissue expander includes a hollow body and an outwardly expanded broadside 3, the wideside 3 is connected to the proximal end of the body, and the body is at least two groups of expansions that cooperate with each other and have a gap 25 between them. Sheets 2 , the expansion sheets 2 may be three or four as in this preferred embodiment, which are evenly distributed on the distal end of the broad side 3 .

[0029] The expansion pieces 2 are provided with rectangular or trapezoidal gaps 22 for surgical observation or surgical treatment between each other, and the gaps 22 communicate with the gaps 25, forming a character "中" in the figure. The function of the notch 22 will be described in detail later.

[0030] Further, the expansion piece 2 incl...

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PUM

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Abstract

The invention discloses a novel tissue expander, which comprises a hollow body and an expanded broadside. The broadside is connected with a near end of the body. The body comprises at least two expansion sheets which are matched with each other and spaced between both. A hinge is arranged on the inner wall at a far end of each expand sheet. The other end of the hinge is hinged with the same center piece. A driving device which is used for driving the center piece to move along the axis of the body is arranged on the center piece so that the expansion sheets of the novel tissue expander are converted from assembly to separation from the far end. The novel tissue expander mainly has the advantage of expanding anus and anal tube of the patient gradually and controllably, thereby avoiding anal fissure and relieving the pain of the patient. In addition, due to the integrated design of preset anus expansion and anus expansion, the novel tissue expander is simple and convenient in use.

Description

technical field [0001] The invention relates to a novel tissue expander for surgical operations, which belongs to the technical field of medical instruments. Background technique [0002] When performing inspection, diagnosis or surgical treatment in anorectal surgery, it is necessary to stretch the anus first, and then put in other surgical instruments for inspection or treatment. The commonly used surgical instrument for stretching the anus at present is an anal expander seat, which includes a cylindrical body and a force-applying shoulder located at the tail of the body. The hollow portion forms a passage for other surgical instruments to enter the patient's body. When in use, slowly insert the body of the anal expander seat into the anus until the anal canal. Since the diameter of the cylindrical body of the anal expander seat is usually relatively large (generally more than 30 millimeters), the anal expander seat It is not easy to enter the anus. The existing common ...

Claims

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Application Information

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IPC IPC(8): A61M29/00
Inventor 陈望东王宗顺
Owner TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO LTD
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