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Heart Surgery

Dissection-of-tissue-by-tissue-expander

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Dissection of tissue by tissue expander

Details

Inventors: Johnson, Gerald W.; Johnson, Jeffrey W.;
Assignee:
Primary Examiner: Cohen; Lee S.
Assistant Examiner: Gilbert; Samuel
Attorney, Agent or Firm: Mosely; Neal J.

A surgical procedure for tissue dissection is disclosed in which an incision is made in a human body. A hollow tissue expander is then inserted into the incision to a point where a space or cavity or pocket is desired. Fluid is forced into the expander to cause it to expand an separate two layers of tissue to form the space or cavity or pocket. The expander can be used to dissect or create spaces: (1) within subcutaneous fat; (2) between skin and bone; skin and muscle or skin and fascia; (3) between fat and bone; fat and muscle; fat and fascia; (4) between peritoneum and muscle; peritoneum and fascia; (5) between bladder and other tissue; (6) between nerves and other tissue; (7) between blood vessels and other tissues; (8) between muscle and other tissues. The tissue expander can, in fact, be used any place in the body where a surgeon could or would use other instruments to create spaces in, dissect or separate soft tissues. This use of a tissue expander to dissect tissue, create cavities or pockets, or separate layers of soft tissue can be done: (1) under direct vision; (2) under endoscopic vision; (3) under X-ray vision; (4) under blind conditions by manual palpatation; (5) or any combination of the above.

DETAILED DESCRIPTION One of the objects of this invention is to provide a new and improved surgical procedure for dissecting tissue to form a space or cavity or pocket.
Another object of this invention is to provide a new and improved procedure in which there is minimal bleeding, bruising and swelling as a result of the "tissue expansion" technique to dissect the pocket, as opposed to the sharp and/or blunt techniques of dissection presently used.
Another object of this invention is to provide a new and improved procedure for tissue dissection in which there is much less damage to nerves than caused by other techniques currently used.
Another object of this invention is to provide a new and improved surgical procedure for tissue dissection and instruments which permit the direct, undistorted visualization of the site during the operation.
Still another object of this invention is to provide a new and improved surgical procedure for tissue dissection in which an incision is made into the body where the surgeon wants to create a space or cavity or pocket and a hollow tissue expander is inserted and expanded by application of fluid to dissect the tissue.
Other objects of the invention will become apparent from time to time throughout the specification and claims as hereinafter related.

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