Surgical drape for use with surgical slush machines having an automatic dislodgement mechanism
First Claim
1. In a thermal treatment system having a basin recessed in a top surface of a system housing for thermally treating a sterile medium and an automatic dislodgement mechanism disposed at the bottom of the basin for dislodging congealed sterile medium formed adjacent basin walls, said housing having a plurality of substantially vertical sides on which said top surface is supported, a surgical drape comprising:
- a drape portion for covering said top surface and overhanging said housing sides;
a drape receptacle incorporated into said drape portion and configured to conform to, and be disposed within, said basin adjacent said dislodgement mechanism to contain said sterile medium within said basin; and
securing means for selectively engaging the system housing and for preventing the drape from being pulled substantially further into the basin and thereby prevent the drape receptacle from being drawn beneath the dislodgement mechanism.
4 Assignments
0 Petitions
Accused Products
Abstract
A surgical drape for use in a thermal treatment system having an automatic dislodgement mechanism for dislodging congealed liquid is accomplished by a drape having either a coefficient of friction approximately in the range of 0.4-1.0 as measured against steel per ASTM 1983 a metalocine-based olefin film having a flexibility approximately in the range of 10K-12K psi secant modulus measured by ASTM D882, a securing mechanism, or a preformed container portion having ribs or ridges to prevent the drape from being drawn beneath the automatic dislodgement mechanism. The securing mechanisms may be attached to the drape either at the ends of a drape portion hanging down from a top surface of the system, or at a location coincident the top surface of the machine. Further, the securing mechanisms may be separate units disposed on the drape subsequent to disposal of the drape in the basin. The securing mechanisms ensure that there is only a sufficient amount of the drape portion disposed in the thermal treatment system basin to form a drape receptacle without leaving any margin for excess portions of the drape to be drawn beneath the dislodgement mechanism. Alternatively, the drape may include a preformed container portion having ribs disposed in the container portion walls to allow air beneath the container portion to prevent the container portion from being drawn by suction against the basin and beneath the dislodgement mechanism.
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Citations
50 Claims
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1. In a thermal treatment system having a basin recessed in a top surface of a system housing for thermally treating a sterile medium and an automatic dislodgement mechanism disposed at the bottom of the basin for dislodging congealed sterile medium formed adjacent basin walls, said housing having a plurality of substantially vertical sides on which said top surface is supported, a surgical drape comprising:
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a drape portion for covering said top surface and overhanging said housing sides; a drape receptacle incorporated into said drape portion and configured to conform to, and be disposed within, said basin adjacent said dislodgement mechanism to contain said sterile medium within said basin; and securing means for selectively engaging the system housing and for preventing the drape from being pulled substantially further into the basin and thereby prevent the drape receptacle from being drawn beneath the dislodgement mechanism. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A surgical drape for use in a thermal treatment system having a basin recessed in a top surface of a system housing for thermally treating a sterile medium, and an automatic dislodgement mechanism disposed at the bottom of the basin for dislodging congealed sterile medium from the drape adjacent basin walls, wherein said housing includes a plurality of substantially vertical sides on which said top surface is supported, said drape comprising:
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a drape portion covering and hanging down from said top surface; a preformed container portion fitted to match the contour of, and being disposed within, said basin adjacent said dislodgement mechanism, wherein said preformed container portion includes ribs disposed in the walls of said container portion; and securing means extending from said drape portion to hang down from said top surface and to selectively secure the drape to the system housing; wherein said ribs disposed in said container portion walls are configured to allow air to flow along said basin beneath said container portion to prevent said container portion from being drawn by suction against the basin and beneath said dislodgement mechanism. - View Dependent Claims (15)
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16. A surgical drape for use in a thermal treatment system having a basin recessed in a top surface of a system housing for thermally treating a sterile medium, and an automatic dislodgement mechanism disposed at the bottom of the basin for dislodging congealed sterile medium from the drape adjacent basin walls, said drape comprising:
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a drape portion for covering and hanging down from said top surface with a part of said drape portion conforming to, and being disposed within, said basin adjacent said dislodgement mechanism to form a drape receptacle; wherein said drape is constructed of material having a coefficient of friction in the range of approximately 0.4-1.0 as measured against steel per ASTM 1983 to enable said drape to generate frictional forces with said basin sufficient to prevent said drape from being pulled substantially further into the basin beneath said dislodgement mechanism.
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17. A surgical drape for use in a thermal treatment system having a basin recessed in a top surface of a system housing for thermally treating a sterile medium, and an automatic dislodgement mechanism disposed at the bottom of the basin for dislodging congealed sterile medium from the drape adjacent basin walls, said drape comprising:
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a drape portion for covering and hanging down from said top surface with a part of said drape portion conforming to, and being disposed within, said basin adjacent said dislodgement mechanism to form a drape receptacle; wherein said drape is formed of a metalocine-based olefin film having a flexibility approximately in the range of 10K-12K psi secant modulus measured by ASTM D882 to facilitate formation of air channels between said drape and basin when forming said drape receptacle; wherein said air channels are configured to enable air to flow beneath said drape receptacle to prevent said drape from being drawn beneath said dislodgement mechanism by suction generated from dislodgement mechanism motion.
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18. In a thermal treatment system having a basin recessed in a top surface of a system housing for thermally treating a sterile medium, a drape including a drape portion for covering and hanging down from said top surface with a part of said drape portion conforming to, and being disposed within, said basin to form a drape receptacle and a dislodgement mechanism disposed at the bottom of the basin for dislodging congealed sterile medium from the drape adjacent walls of the basin, a device for securing the drape to the housing to enhance dislodgement of the congealed medium, said device including positional fixing means for placement in the drape receptacle to press portions of said drape coincident said positional fixing means against the basin walls to secure the drape to the housing to prevent the drape from being pulled substantially further into the basin and thereby prevent said drape receptacle from being drawn beneath the dislodgement mechanism.
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19. In a thermal treatment system having a basin recessed in a top surface of a system housing for thermally treating a sterile medium, a drape for maintaining sterility of said sterile medium, and a dislodgement mechanism disposed at the bottom of the basin for dislodging congealed sterile medium from the drape adjacent walls of the basin, wherein said housing includes a plurality of substantially vertical sides on which said top surface is supported, a method for enhancing dislodgement of the congealed medium comprising the steps of:
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(a) forming said drape with a drape portion configured to cover and hang down from said top surface with a part of said drape portion conforming to and disposed within said basin adjacent said dislodgement mechanism to form a drape receptacle; and (b) further forming said drape with securing means to secure the drape to the system housing to prevent the drape from being pulled substantially further into the basin and thereby prevent the drape receptacle from being drawn beneath the dislodgement mechanism. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. In a thermal treatment system having a basin recessed in a top surface of a system housing for thermally treating a sterile medium, a drape for maintaining sterility of said sterile medium, and a dislodgement mechanism disposed at the bottom of the basin for dislodging congealed sterile medium from the drape adjacent walls of the basin, wherein said housing includes a plurality of substantially vertical sides on which said top surface is supported, a method for enhancing dislodgement of the congealed medium comprising the steps of:
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(a) forming said drape to have a drape portion adapted to cover and hanging down from said top surface; (b) defining in said drape a preformed container portion fitted to match the contour of, and adapted to be disposed within, said basin adjacent said dislodgement mechanism; (c) forming ribs in the walls of said container portion; and (d) disposing securing means on edges of said drape portion hanging down from said top surface for securing the drape to the system housing; said ribs being configured to allow air to flow along said basin beneath said container portion to prevent said container portion from being drawn by suction against said basin and beneath said dislodgement mechanism. - View Dependent Claims (33)
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34. In a thermal treatment system having a basin recessed in a top surface of a system housing for thermally treating a sterile medium, a drape for maintaining sterility of said sterile medium, and a dislodgement mechanism disposed at the bottom of the basin for dislodging congealed sterile medium from the drape adjacent walls of the basin, a method for enhancing dislodgement of the congealed medium comprising the step of:
(a) forming said drape to have a drape portion for covering and hanging down from said top surface with a part of said drape portion conforming to, and being disposed within, said basin adjacent said dislodgement mechanism to form a drape receptacle, said drape being formed of a material having a coefficient of friction in the range of approximately 0.4-1.0 as measured against steel per ASTM 1983 to enable said drape to generate frictional forces with said basin sufficient to prevent said drape from being pulled substantially further into the basin beneath said dislodgement mechanism.
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35. In a thermal treatment system having a basin recessed in a top surface of a system housing for thermally treating a sterile medium, a drape for maintaining sterility of said sterile medium, and a dislodgement mechanism disposed at the bottom of the basin for dislodging congealed sterile medium from the drape adjacent walls of the basin, a method for enhancing dislodgement of the congealed medium comprising the step of:
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(a) forming said drape to have a drape portion for covering and hanging down from said top surface with a part of said drape portion conforming to, and being disposed within, said basin adjacent said dislodgement mechanism to form a drape receptacle, said drape being formed of a metalocine-based olefin film having a flexibility in the approximate range of 10K-12K psi secant modulus measured by ASTM D882 to facilitate formation of air channels between said drape and basin when forming said drape receptacle; wherein said air channels are formed to enable air to flow beneath said drape receptacle to prevent said drape from being drawn beneath said dislodgement mechanism by suction generated from dislodgement mechanism motion.
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36. In a thermal treatment system having a basin recessed in a top surface of a system housing for thermally treating a sterile medium, a drape having a drape portion for covering and hanging down from said top surface and being disposed within said basin to form a drape receptacle, and a dislodgement mechanism disposed at the bottom of the basin for dislodging congealed sterile medium from the drape adjacent walls of the basin, wherein said housing includes a plurality of substantially vertical sides on which said top surface is supported and said drape further includes securing means for securing the drape to the system housing, a method for enhancing dislodgement of the congealed medium comprising the step of:
(a) securing the drape to the housing via said securing means to prevent the drape from being pulled substantially further into the basin and thereby prevent the drape receptacle from being drawn beneath the dislodgement mechanism. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. In a thermal treatment system having a basin recessed in a top surface of a system housing for thermally treating a sterile medium, a drape having a drape portion covering and hanging down from said top surface, a preformed container portion fitted to match the contour of, and being disposed within, said basin including ribs disposed in the walls of said container portion, securing means extending from said drape portion hanging down from said top surface for securing the drape to the system housing, and a dislodgement mechanism disposed at the bottom of the basin for dislodging congealed sterile medium from the drape adjacent walls of the basin, wherein said housing includes a plurality of substantially vertical sides on which said top surface is supported, a method for enhancing dislodgement of the congealed medium comprising the steps of:
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(a) securing the drape to the system via said securing means; and (b) maintaining parts of said container portion away from walls of said basin via said ribs to enable air to flow between the container portion and dislodgement mechanism to prevent the container portion from being drawn beneath the dislodgement mechanism. - View Dependent Claims (50)
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Specification