Inflatable Compression Dressing
First Claim
1. A medical dressing for an appendage comprising:
- a bladder formed by an outer wall secured to an inner wall, the walls of the bladder being shaped to form an elongated, cup-shaped cavity for receiving an appendage when the bladder is filled with air;
an air supply delivering air to the bladder;
a sensor monitoring air pressure within the bladder and providing feedback indicating the air pressure within the bladder;
an air pressure control receiving the feedback from the sensor and controlling the air supply to substantially match a rate of air delivered to the bladder with a rate of air leaked from the bladder;
wherein the air supply inflates the bladder, thereby providing uniform air pressure to the appendage.
1 Assignment
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Accused Products
Abstract
The present invention provides an improved inflatable compression dressing (10) for use in controlling swelling and promoting healing to wounds subsequent to surgery while allowing visual inspection of the wound during healing. The dressing comprises a bladder (138) formed by an outer wall (114) secured to an inner wall (112) to define an elongated, cup-shaped cavity for receiving an appendage (136); an air supply delivering air to the bladder; and a sensor monitoring air pressure within the bladder and indicating said air pressure to an air pressure control (140). The air pressure control provides air to the bladder at a rate which substantially matches air leaked from the bladder. Thus, the air supply inflates the bladder so as to provide uniform air pressure to the appendage, wherein the appendage is an arm or a leg.
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Citations
36 Claims
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1. A medical dressing for an appendage comprising:
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a bladder formed by an outer wall secured to an inner wall, the walls of the bladder being shaped to form an elongated, cup-shaped cavity for receiving an appendage when the bladder is filled with air; an air supply delivering air to the bladder; a sensor monitoring air pressure within the bladder and providing feedback indicating the air pressure within the bladder; an air pressure control receiving the feedback from the sensor and controlling the air supply to substantially match a rate of air delivered to the bladder with a rate of air leaked from the bladder; wherein the air supply inflates the bladder, thereby providing uniform air pressure to the appendage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A medical dressing for an appendage comprising:
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a bladder formed by an inner wall shaped in the form of an elongated receptacle having a first opening defining a first cavity and an outer wall shaped in the form of a second elongated receptacle having a second opening defining a second cavity, wherein the second cavity formed by the outer wall surrounds the first cavity formed by the inner wall, and a seam joins the inner and outer walls together at the first and second openings such that the inner wall forms a single elongated cavity for receiving an appendage; a closure device secured to the outer wall and being operable to close the bladder around the appendage disposed in the cavity; an air pressure relief valve secured to the outer wall and being operable to relieve pressure in the bladder in excess of 51 mmHg; a ventilation valve secured to the outer wall and being operable to enable a controlled amount of air to escape from the bladder and thereby reduce moisture within the cavity; an air supply delivering air to the bladder thereby inflating the bladder around the appendage disposed in the cavity; a sensor monitoring air pressure within the bladder and providing feedback indicating the air pressure within the bladder; an air pressure control receiving the feedback from the sensor and controlling the air supply to substantially match a rate of air delivered to the bladder with a rate of air leaked from the bladder into the cavity; wherein the dressing provides uniform air pressure to the appendage. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification