Method and inflatable chamber apparatus for separating layers of tissue
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a tissue separation and retraction device technology, applied in the field of inflatable tissue separation and retraction devices, can solve the problems of irritating the bowel, difficult to see the site of the hernia, and risk of puncturing the peritoneum
Inactive Publication Date: 2009-07-16
COVIDIEN AG
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[0023]Another embodiment of the invention is a technique for packing a balloon in a manner which provides a tunnel through the packaged balloon for insertion of a laparoscope or other instrument, and which eliminates the need for packaging the balloon with an obturator positioned within it.
Problems solved by technology
The mesh patch has a rough surface that can irritate the bowel and cause adhesions.
This is a difficult process which involves the risk of puncturing the peritoneum.
Moreover, strands of properitoneal fat interconnecting the peritoneum and the properitoneal fascia make it difficult to see the site of the hernia.
In this procedure, it is difficult to dissect the peritoneum cleanly since patchy layers of properitoneal fat tend to adhere to the peritoneum.
These instruments can cause inadvertent puncture of the peritoneum wall after the initial dissection.
Also, it is difficult to dissect the peritoneum cleanly since patchy layers of properitoneal fat tend to adhere to the peritoneum.
Clearing difficult adhesions can sometimes result in a breach of the peritoneum itself.
Method used
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second embodiment
[0190]In a one-component apparatus according to U.S. Ser. No. 07 / 911,714, the introducing device is an outer elongated tube, and the insufflating device comprises an inner elongated tube mounted in the bore of the outer tube. The proximal ends of the tubes are flexibly coupled together. One end of the main envelope is everted with respect to the other, and is attached to the distal end of the outer elongated tube. The other end of the main envelope is attached to the distal end of the inner elongated tube. The main inflatable chamber defined by the main envelope is thus substantially toroidal. The outer elongated tube has an anchor flange slidably mounted on it. The anchor flange and the main inflatable chamber together form a gas-tight seal with the second layer of tissue.
[0191]Such second embodiment of a one-component apparatus is shown in FIGS. 7A-7B and 8A-8B. In this embodiment, a substantially toroidal shape of the main chamber avoids the need to detach and remove the main env...
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Abstract
An apparatus for tissue dissection and instrument anchoring and methods for using such apparatus are disclosed. The apparatus includes a cannula, a dissection balloon releasably attached to the cannula at the distal end, an anchoring balloon disposed on the cannula, and a means for inflating both balloons.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a division of co-pending U.S. patent application Ser. No. 11 / 725,016, filed Mar. 16, 2007, which is a continuation of co-pending U.S. patent application Ser. No. 10 / 392,465, filed Mar. 19, 2003, which is a continuation of U.S. patent application Ser. No. 09 / 023,134, filed Feb. 12, 1998, now abandoned, which is a continuation of U.S. patent application Ser. No. 08 / 583,563, filed Jan. 5, 1996, now U.S. Pat. No. 5,779,728 which is a continuation-in-part of U.S. patent application Ser. No. 08 / 542,666, filed Oct. 13, 1995, now U.S. Pat. No. 5,728,119 of inventors Jeffrey A. Smith, Daniel T. Wallace, Edwin J. Hlavka, Charles Gresl, John P. Lunsford, and Albert K. Chin, which is a continuation-in-part of U.S. patent application Ser. No. 08 / 405,284, filed Mar. 16, 1995, now U.S. Pat. No. 5,632,761 of inventors Jeffrey A. Smith, Albert K. Chin, and Frederic H. Moll, which is a continuation-in-part of U.S. patent application Ser...
Claims
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Patent Type & Authority Applications(United States)
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