Compression expanded cannula

a cannula and compression technology, applied in the field of compression expanded cannula, can solve the problems of further tissue damage and difficulty in removal

Inactive Publication Date: 2009-08-13
DEPUY MITEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0010]The method can further include inserting at least one surgical tool through the bore in the elongate surgical access member to effect a surgical procedure. In an embodiment, the compressive force is applied by sliding a member distally relative to the elongate surgical access member. In another emb

Problems solved by technology

These rigid surface features, however, can cause tissue damage as the cannula is inserted and usually do not result in the most secure fit once in place due to tissue trauma

Method used

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  • Compression expanded cannula
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Examples

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Embodiment Construction

[0023]Certain exemplary embodiments will now be described to provide an overall understanding of the principles of the structure, function, manufacture, and use of the devices and methods disclosed herein. One or more examples of these embodiments are illustrated in the accompanying drawings. Those skilled in the art will understand that the devices and methods specifically described herein and illustrated in the accompanying drawings are non-limiting exemplary embodiments and that the scope of the present invention is defined solely by the claims. The features illustrated or described in connection with one exemplary embodiment may be combined with the features of other embodiments. Such modifications and variations are intended to be included within the scope of the present application.

[0024]The present application provides methods and devices useful for accessing an interior surgical site using an access portal which can be inserted and removed with minimal tissue damage and whic...

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Abstract

Various methods and devices are provided for accessing an interior surgical site using an access portal which can be inserted and removed with minimal tissue damage and which can form a seal with tissue while inserted. Generally, a device is provided having a rigid elongate surgical access member with a lumen extending therethrough that is configured to receive a surgical tool. The device can also include a flexible sleeve having a lumen extending therethrough that is configured to receive the elongate surgical access member. A substantially rigid collar is provided disposed adjacent to a proximal end of the flexible sleeve and having a lumen extending therethrough that is configured to receive the elongate surgical access member. In an exemplary embodiment, the collar is movable relative to the elongate surgical access member to selectively configure the flexible sleeve in a relaxed condition in which the flexible sleeve has a relatively smooth outer tissue-contacting surface and a compressed condition in which the flexible sleeve has a plurality of protrusions formed on the outer tissue-contacting surface that are configured to create a seal between the outer tissue-contacting surface and tissue.

Description

FIELD[0001]The present invention generally relates to methods and devices for providing access portals through which surgical instruments can be inserted. More particularly, the invention relates to devices which can be inserted into and removed from a patient with minimal tissue damage.BACKGROUND[0002]Arthroscopic, or more generally, minimally invasive surgical procedures rely on obtaining percutaneous access to an internal surgical site using small-diameter openings to gain access to the desired surgical site. In many cases, access tubes are placed through the opening to allow a variety of elongated instruments to be passed through the access tubes to gain access to an internal surgical work site without the need for large incisions. As a result, patient trauma and recovery time are typically reduced.[0003]Very often, these access tubes, which are often called cannulas, must be left in an incision for an extended period of time, without significant movement, as instruments are ins...

Claims

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Application Information

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IPC IPC(8): A61M25/00
CPCA61B17/3421A61B17/3439A61B17/0218A61B2017/3484A61B2017/349A61B2017/3419A61B17/3423A61B2017/0225A61B2017/3435A61B2017/3458
Inventor WHITTAKER, GREGORY R.MCALISTER, GARYHAMILTON, JASON
Owner DEPUY MITEK INC
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