Patent Application
20140309497
1. Field of the Invention
The present invention relates to medical devices, and particularly to a protective tissue cover that provides gentle, sterile, and non-aggravating contact with tissue during surgery.
2. Description of the Related Art
In many respects, surgical procedures are very delicate processes. Much care and attention must be maintained not just with the procedure itself but also with the environmental conditions. Any invasive procedure runs the risk of potential contamination, infection, and inflammation as well as the occasional unforeseen complication to the patient. In modern medicine, many guidelines have been developed to minimize such dangers, such as protective apparel, specialized bandages and other surgical equipment, meticulous monitoring of tools and equipment used during surgery, and scrubbing or cleansing procedures for the surgeon, support staff, instruments and the surgical area.
One aspect of surgery that is of much concern is the handling of tissue during surgical procedures. Most conventional surgical procedures utilize surgical drapes around the incision site, providing a sterile barrier to prevent or reduce contamination. Special bandages or towelettes, such as cottonoids, are also used as drapes and sponges. These implements, while sterile, can cause trauma and irritation to the underlying tissue in and around the incision site, especially the delicate tissue during in various surgeries including brain surgery. In some instances, there have been cases of cotton residue left in the surgical site, which is a potential hazardous complication for patient recovery. The residue can result in focal inflammation and/or infection.
Besides the above implements, surgeons routinely use specialized tools, such as retractors, during the surgical procedure as a means of gaining access to critical anatomical sites and to keep surrounding tissue away from the target area. Retractor designs range from simple to complex, and retractors are typically constructed from surgical grade materials. Any contact of the retractors against exposed tissue, usually prolonged in most procedures where surrounding tissue must be isolated, can abrade or irritate the underlying tissue, causing potential inflammation leading to contamination and/or infection. Due to the complex biology of individuals, some patients are more sensitive and susceptible to these types of complications.
In light of the above, it would be a benefit in the art of medical device to provide some means of minimizing these types of complications. Thus, a protective tissue cover solving the aforementioned problems is desired.
The protective tissue cover includes a sleeve configured to slide onto the working portion of a surgical retractor. At least the contact side of the protective tissue cover is constructed from smooth antimicrobial material that minimizes contact irritation with tissue. Alternative embodiments include various multiple-ply constructions that incorporate an antimicrobial layer, an absorbent layer, and other medical layers to assist in surgical procedures.
These and other features of the present invention will become readily apparent upon further review of the following specification and drawings.
Similar reference characters denote corresponding features consistently throughout the attached drawings.
The protective tissue cover, a first embodiment of which is generally referred to by the reference number 10, provides a gentle, minimal irritant, sterile and/or antimicrobial, bactericidal layer between exposed tissue and environmental intrusions. As best seen in
The protective tissue cover 10 is preferably made from a smooth, resilient, polymeric material (medical grade) having sterile, antimicrobial and/or antiallergenic properties. The smoothness offers near frictionless contact with tissue through the interaction of natural biological fluids and/or solutions used in surgery between the material and tissue. This minimizes much of the potential abrading and irritation therewith, especially with tissue contact during surgery and the process of removing the retractor. It is to be understood that the benefits herein apply to any tissue that may be in contact with the protective tissue cover 10. Obviously, a sterile environment during surgery must be maintained at all times, and antimicrobial properties assure that this can be accomplished with minimal risk to the patient. As mentioned previously, some patients may exhibit hypersensitivity to certain materials or chemicals, and antiallergenic properties insure that the protective tissue cover 10 can be utilized for as wide a spectrum of patients as possible.
One example of an antimicrobial and antiallergenic material is Ioban®, manufactured by 3M, which is primarily a surgical drape impregnated with iodine. This particular material has been shown to be an effective antimicrobial barrier during surgical procedures. Other types of materials include, but are not limited thereto, medical grade elastomeric material, such as Silastic®, manufactured by Dow Corning, and other silicone elastomers and the like, that are impregnated or synthesized with chlorhexadine, collagen, vitamin D, quaternary amines, halamine, silver, combinations and the like. It is to be understood that some of these chemicals or compounds may exhibit toxicity at high levels of concentration. Thus, the composition must be made with due consideration for minimizing risks of toxicity. Another example includes materials such as Telfa®, a dressing produced by Kendall Company, and the like. Telfa® exhibits anti-adhering properties while providing absorption of fluids.
An alternative protective tissue cover 100 is shown in
As for the material of the lower layer 104 or the absorbent layer, it is preferable that this layer be made of material resistant to leaving residue. For example, many barriers exist that are constructed from cotton products. However, they tend to adhere to tissue or left in-situ unintentionally. This type of situation often results in unintended trauma to the tissue due to a peeling effect on the tissue when attempting to remove the same. Thus, while cotton products exhibit great absorption, they and similar products should be constructed to minimize adherence characteristics.
In this embodiment, the upper layer 102 can also be provided with at least one detection strip 108 embedded in the upper layer 102. As previously mentioned, the use and number of surgical equipment is closely monitored during surgery. There have been cases where cottonoid paddies or other implements have been accidentally overlooked and left in the body of the patient. This requires an immediate response and removal of the foreign matter before complications can occur. In order to avoid and minimize the dangers of such occurrences, especially from human error, the detection strip 108 permits early detection, via intra-operative or post-operative X-ray, CAT or MRI scan, of such potentially overlooked foreign matter. The composition of the detection strip 108 can include barium and compounds thereof, non-ferromagnetic metals, plastic or any other material that can provide discernible contrast in X-ray scans or molecular excitations. Other detection methods and materials can include coatings detectable via various bands of light.
A still further alternative protective tissue cover 200 is shown in
A further alternative protective tissue cover 300 is shown in
The protective tissue cover 300 can be provided with an outer shroud or cap 320 that surrounds select portions or all of the layers 302, 304. An adapter opening or nipple 322 is formed on the outer shroud 320 for selective attachment of a remote suction device (not shown). This configuration permits positive suctioning of excess fluids through the protective tissue cover 300 during the surgical procedure. As an alternative, the outer shroud 320 can be removed and suctioning can be performed on the exposed surfaces of the layers 302, 304.
It is to be understood that the present invention is not limited to the embodiments described above, but encompasses any and all embodiments within the scope of the following claims.
