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Obesity Surgery

Two-piece-balloon-protector

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OF THE INVENTION Referring to the drawings somewhat more in detail, the needle element of the ...

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OF THE PREFERRED EMBODIMENTS While this invention is susceptible of embodiment in many different ...

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OF THE PREFERRED EMBODIMENT Medical devices according to the present invention may be fabricated ...

Two piece balloon protector

Details

Inventors: Parkola, Walter R.;
Assignee: Medtronic, Inc. (Minneapolis, MN)
Primary Examiner: McDermott; Corrine M.
Assistant Examiner:
Attorney, Agent or Firm: Shevlin; Michael R., Plunkett; Dianne M. F., Patton; Harold R.

The present invention is for a two piece balloon protector (5) which consists of an cylindrical tube (10) and an inner elastomeric member (15). The inner elastomeric member (15) has a outer diameter that is smaller than the inner diameter of cylindrical tube (10) and fits inside of the cylindrical tube (10). The proximal end of the inner elastomeric member (15) has a return flange (30) that fits around the proximal end of cylindrical tube (10). To install the balloon protector (5) over the dilatation catheter balloon (20), cylindrical tube (10) is held fixed while the inner elastomeric member (15) is pulled longitudinally at its distal end, thus stretching the material, decreasing the longitudinal cross-section and creating a larger inner diameter in inner elastomeric member (15). The balloon protector (5) is slid over the dilatation catheter balloon (20), the longitudinal force on the inner insert (15) is released causing the inner diameter of the inner elastomeric member (15) to decrease, compressing and containing the dilatation catheter balloon (20).

DETAILED DESCRIPTION Accordingly, the present invention is directed to an improved balloon protector for covering and protecting the balloon of a dilatation catheter.
This invention is for a two piece balloon protector consisting of an outer cylindrical tube and an inner elastomeric member which, when pulled longitudinally, increases the inside diameter due to displacement of the material.
When the inside diameter becomes larger, the protector may be slid over the dilatation catheter balloon fully and when the tension on the elastomer is relaxed it will decrease the inside diameter and compress the balloon.
Having a balloon protector with a inner diameter that can be increased when installed over a balloon will lessen the risk of damage to the balloon and can be readily removed from the balloon prior to use, without the need for cutting or tearing the protector.

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