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Percutaneous dilation apparatus

A dilation device, a technology that penetrates the skin, is used in dilators, medical science, surgery, etc., and can solve problems such as bile leakage from the gallbladder wall and improper treatment.

Inactive Publication Date: 2009-04-01
KIMBERLY-CLARK WORLDWIDE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, transperitoneal access may also be preferred for a number of reasons, for example, it avoids potential injury to the liver due to the difficulty of puncturing an unattached gallbladder wall and the greater risk of bile leakage in combination with traditional dilation techniques. risk, which indicates inappropriate treatment

Method used

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Examples

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Embodiment Construction

[0018] The present invention is used to create and expand transdermal punctures to various target locations in a patient for a variety of uses. The initial puncture is very small, usually less than about 7F, more often less than about 3F, and often less than about 20GA (gauge: 0,035 inches). The puncture is then enlarged to the desired final size, which generally has a final diameter ranging from about 10French (F) to about 30F, typically about 12F to 28F, and usually about from 14F to 24F, the present invention is especially useful for larger The diameter of the puncture is formed.

[0019] The purpose of the puncture may be for drainage, intra-organ drug administration, perfusion, aspiration, or the like, but is usually used for the introduction of a relatively large surgical instrument or working catheter, such as those used in minimally diffuse surgical procedures. Such procedures include laparoscopy, balloon catheter dilation, stenting, urethral and gallstone removal, os...

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PUM

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Abstract

A percutaneous dilation apparatus (10) is shown. The apparatus (10) is useful for forming and enlarging percutaneous penetrations to a variety of target locations within a patient's body for multiple purposes. The apparatus includes an elongate dilation tube (12), a plurality of elongate expansion members (14) disposed in a nested concentric arrangement around the elongate expansion tube, and an outer sheath (16) for capturing the plurality of elongate expansion members and maintaining the apparatus in an assembled configuration. Each expansion member (14) is independently movable from a first to a second position along the central axis of the tube as well as each concentrically smaller member. A trocar may be provided for slidably engaging the lumen through the elongate dilatation tube.

Description

【Technical field】 [0001] The present invention relates generally to a medical device for facilitating transcutaneous access to a body cavity, and more particularly, the present invention relates to the construction and use of a dilating tool or device that produces continuous radial dilation of tissue, To create a larger diameter working channel into the body lumen. 【Background technique】 [0002] Modern medicine often requires access through the skin to hollow body organs, tissues, lumens or the like. In the case of "minimally or minimally diffuse" shell surgical procedures, these passages are usually achieved by placing a suitable cannula, instrument, tube or similar obtained by inserting a small via. The initial channel is usually created by puncturing the skin and intervening tissue with a needle or trocar. However, the initial orifice is usually very small so that the needle or trocar can achieve the desired penetration without causing undue damage to the tissue. It ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34A61B19/00A61M29/00A61M25/06
CPCA61M2025/0687A61B17/3421A61M29/00A61B17/3439A61M2025/0175A61M2025/0004A61B17/02A61B17/3417A61B2017/00991A61B17/34A61M25/06
Inventor D·J·麦米克尔N·V·希尔利K·彼得森
Owner KIMBERLY-CLARK WORLDWIDE INC
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