Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Thermal applicators
Reexamination Certificate
1997-12-11
2001-10-30
Nasser, Robert L. (Department: 3736)
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Thermal applicators
C607S114000, C062S259300, C005S423000
Reexamination Certificate
active
06309409
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to inflatable thermal blankets that regulate a patient's temperature by bathing the patient in thermally-controlled air. More particularly, the invention concerns a method and apparatus for securing such a blanket during use.
2. Description of the Related Art
Augustine, et al. first described the use of temperature-controlled air to regulate the body temperature of patients, especially during and after surgery. U.S. Pat. No. 4,572,188, for example, used convective warming to prevent or treat hypothermia. In the '188 patent, temperature-controlled air is supplied by a blower unit that is connected to an airflow cover by a hose. In later-issued patents owned by the assignee of this application, the term “inflatable thermal blanket”, synonymous with “airflow cover”, is introduced. See, for example, U.S. Pat. No. 5,24,320, for “Thermal Blanket”.
Inflatable thermal blankets assume a variety of shapes and sizes for specialized use, and include various inflatable structures that wrap around or drape over a patient. See, for example, U.S. Pat. Nos. 5,300,102 and 5,336,250. The mechanism for delivering heated air to a patient has also been expanded, beyond inflatable blankets, to include self-supporting tubes and plenums. See, for example, U.S. Pat. Nos. 5,300,101 and 5,350,417.
For ease of description, the various inflatable mechanisms for delivering a flow of temperature-controlled air to bathe a patient are referred to herein as “inflatable thermal blankets” (or, “thermal blankets”). Patient-warming systems that use inflatable thermal blankets such as these may be collectively referred to as “convective warming systems.” The basic convective warming system includes a heater/blower unit, an inflatable thermal blanket, and a flexible delivery hose connecting the two. These convective warming systems provide acknowledged clinical benefits.
Various embodiments of known inflatable thermal blankets have used strips of adhesive tape to prevent a blanket moving with respect to a patient. The adhesive strips man also be used to help control the flow of the thermally-controlled air, e.g. to ensure even distribution of the temperature-controlled air, or to prevent migration of the air toward a care site. Typically, the adhesive strips adhere the thermal blanket to the patient or to a nearby piece of equipment, such as a hospital bed or operating table. In many such applications, adhesive strips have performed satisfactorily.
Nonetheless, in certain situations, patients and medical personnel alike would benefit from a different mechanism for securing an inflatable thermal blanket. In particular, some especially cost-sensitive applications require a thermal blanket that can be secured in place without additional supplies, such as adhesive strips. Also, some applications may necessitate a securing mechanism that does not leave sticky adhesive residue on hospital equipment, as adhesive strips can. Further, some users may desire a way to more quickly and conveniently secure the thermal blanket.
Therefore, significant benefits would be realized with an inflatable thermal blanket that can be quickly, efficiently, and conveniently secured in place.
SUMMARY OF THE INVENTION
Broadly, the present invention concerns an inflatable thermal blanket for covering and bathing, a patient in thermally-controlled inflating air, where selectively operated ties are used to secure the thermal blanket during use. The thermal blanket comprises an inflatable thermal blanket with a periphery and one or more substantially flat flexible flaps along the periphery. In one example, the flaps may comprise portions of a peripheral seal between a base layer and an overlaying layer.
One or more of the flaps include boundaries, such as perforations, defining ties. Selected ones of the ties are operated by detaching them from the thermal blanket along their respective boundaries. Then, individual ties may be tied to hospital equipment, or opposing ties may be brought together and tied to each other, thereby securing the inflatable thermal blanket in place.
The invention affords its users with a number of distinct advantages. For example, due to the selectively detachable ties, the thermal blanket of the invention is self-restraining—the blanket can be secured in place without any additional materials, such as adhesive tape. By avoiding the use of adhesive tape, the invention also avoids the damage or residue sometimes caused by adhesives. Users of the present invention will also recognize that the present invention is convenient, since its ties need not be activated until the user desires. The present invention also provides a number of other advantages, which are apparent from the detailed description that follows.
REFERENCES:
patent: 222690 (1879-12-01), Goldschmidt
patent: 1399095 (1921-12-01), Webb, Sr.
patent: 1777982 (1930-10-01), Popp
patent: 2093834 (1937-09-01), Gaugler
patent: 2110022 (1938-03-01), Kliesrath
patent: 2122964 (1938-07-01), Sweetland
patent: 2512559 (1950-06-01), Williams
patent: 2601189 (1952-06-01), Wales, Jr.
patent: 2706988 (1955-04-01), Weber
patent: 3243827 (1966-04-01), Kintner
patent: 3418726 (1968-12-01), Sparks
patent: 3610251 (1971-10-01), Sanderson
patent: 3610323 (1971-10-01), Troyer
patent: 3691646 (1972-09-01), Ruffolo
patent: 3714947 (1973-02-01), Hardy
patent: 3757366 (1973-09-01), Sacher
patent: 4572188 (1986-02-01), Augustine et al.
patent: 4660388 (1987-04-01), Greene, Jr.
patent: 4777802 (1988-10-01), Feher
patent: 4807644 (1989-02-01), Sandhaus
patent: 4867230 (1989-09-01), Voss
patent: 5125238 (1992-06-01), Ragan et al.
patent: 5184612 (1993-02-01), Augustine
patent: 5300100 (1994-04-01), Hickle et al.
patent: 5300101 (1994-04-01), Augustine et al.
patent: 5300102 (1994-04-01), Augustine et al.
patent: 5324320 (1994-06-01), Augustine et al.
patent: 5336250 (1994-08-01), Augustine
patent: 5343579 (1994-09-01), Dickerhoff et al.
patent: 5350417 (1994-09-01), Augustine
patent: 5360439 (1994-11-01), Dickerhoff et al.
patent: 5384924 (1995-01-01), Dickerhoff et al.
patent: 5392847 (1995-02-01), Stephenson
patent: 5405370 (1995-04-01), Irani
patent: 5405371 (1995-04-01), Augustine et al.
patent: 5443488 (1995-08-01), Namenye et al.
patent: 5447531 (1995-09-01), Wood
patent: 5486207 (1996-01-01), Mahawili
patent: 5514169 (1996-05-01), Dickerhoff et al.
patent: 5545194 (1996-08-01), Augustine
patent: 5557801 (1996-09-01), Jakus
patent: 5588968 (1996-12-01), Sternlicht
patent: 5620482 (1997-04-01), Augustine et al.
patent: 5658325 (1997-08-01), Augustine
patent: 5792216 (1998-08-01), Kappel
patent: 33 08 553 (1983-03-01), None
patent: 0 113 420 (1983-11-01), None
patent: 0 311 336 (1988-08-01), None
patent: 716746 (1954-10-01), None
patent: 1 334 935 (1971-03-01), None
patent: 1 461 383 (1973-04-01), None
patent: 1 532 219 (1975-06-01), None
patent: 1 566 207 (1977-05-01), None
patent: WO 85/03216 (1985-08-01), None
Definition of “flap”, Webster's II New Collegiate Dictionary (1995) p. 425.
Webster's Ninth New Collegiate Dictionary definition of “laminate”.
Webster's Third New International Dictionary, p. 250, definition of “bond”.
McGraw-Hill Encyclopedia of Science & Technology, 7th Ed., p. 713, definition of “bonding”.
“Normothermia in the OR” Augustine Medical, Inc., Oct. 1989.
Anderson Thomas P.
Brier Mark F.
Augustine Medical, Inc.
Gray Cary Ware & Freidenrich
Nasser Robert L.
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