VALVED HEMOSTATIC PRESSURE CAP
United States Patent 3874387
A wound dressing of the occlusive type which may have a cap-shaped member which is placed over and connected to the skin about the wound to seal the wound from the surrounding atmosphere. The member has valves therein which, when opened, allow fluids to pass into or out of the wounded area, and, when closed, allow an increase in fluid pressure about the wound to prevent further loss of blood out of the wound and to insure the continued flow of blood through the body.
US Patent References:
/1251258.html
Magill - December 1917 - 1251258
Pneumatic wound dressing
Towle, Jr. et al. - March 1965 - 3171410
DEVICE FOR APPLYING DRESSING,MEDICATION AND SUCTION
Austin, Jr. - December 1969 - 3486504
/1251258.html
Magill - December 1917 - 1251258
Pneumatic wound dressing
Towle, Jr. et al. - March 1965 - 3171410
DEVICE FOR APPLYING DRESSING,MEDICATION AND SUCTION
Austin, Jr. - December 1969 - 3486504
Application Number:
05/269273
Publication Date:
04/01/1975
Filing Date:
07/05/1972
View Patent Images:
Export Citation:
Primary Class:
Other Classes:
604/307, 606/201, 128/888, 606/202
International Classes:
A61B17/08; A61F13/00; A61M27/00; A61F13/15; A61B17/03; A61B17/04
Field of Search:
128/325,334,346,354,155,281,282,300
Primary Examiner:
Laudenslager, Lucie H.
Attorney, Agent or Firm:
Malin & Haley
Claims:
What is claimed is
1. A device for dressing a wound comprising:
2. A device for dressing a wound as set forth in claim 1 wherein,
3. A device for dressing a wound as set forth in claim 2 wherein,
4. A device for dressing a wound as set forth in claim 2 wherein said attaching means is a strap.
5. A device for dressing a wound as set forth in claim 3 wherein,
6. A device for dressing a wound as set forth in claim 3, wherein,
7. A device for pressure dressing a wound, as in claim 2, including:
1. A device for dressing a wound comprising:
2. A device for dressing a wound as set forth in claim 1 wherein,
3. A device for dressing a wound as set forth in claim 2 wherein,
4. A device for dressing a wound as set forth in claim 2 wherein said attaching means is a strap.
5. A device for dressing a wound as set forth in claim 3 wherein,
6. A device for dressing a wound as set forth in claim 3, wherein,
7. A device for pressure dressing a wound, as in claim 2, including:
Description:
BACKGROUND OF THE INVENTION
In treating wounds in general, and puncture wounds in particular, it is often desirable to completely isolate the wound from the surrounding environment, hence, the advent of the occlusive dressing. However, the standard occlusive dressing may often stick to the wound and actually re-injure the wound when removed.
Other dressings use cup-shaped devices on the wound and have inlets and outlets in the cup so that the wound may be washed without removal of the dressing. These have the advantage of not sticking to the wound upon removal. They, however, have the disadvantages of being open to the atmosphere, thus permitting possible contamination of the wound and allow the wound to continue bleeding.
In the past, when dressings were applied to the area surrounding a bleeding wound, the adhesive part would often be impaired by sticking to dried blood.
SUMMARY OF THE INVENTION
The present improvement to the dressing invention includes a cap member or a resilient member formed into the shape of a cup when under pressure, an attaching means, and valve means. When the cap member and valves, in a open position are attached over the wound, the dressing allows the wound to be irrigated without removing the cap member. The inside of the cap may be coated with a soluable antiseptic to cleanse the wound during irrigation. The valve means may be actuated to completely seal off the wound from the surrounding environment to prevent further bleeding of the wound and to insure the flow of blood in the body of the wound.
In applying the dressing to a bleeding wound, the cap member is first placed over the wound with one of the valves in an open position and then the attaching means is connected to the body. The area under the cap may then be cleaned by allowing the blood to escape out through the open valve. The valve is then closed. As the wound bleeds, the blood pressure within the cap will increase and cause a reduction in the flow of bloodout of the wound. The pressure in the cap will increase until it equals the blood pressure in the body. As the outward flow of blood is stopped, the circulatory flow of blood in the body system past the wound is gradually increased until a normal flow rate is obtained.
Other objects and advantages of the invention will be apparent from the following description and the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a top view of the invention without the adhesive ring;
FIG. 2 is a section of the invention along the line A--A of FIG. 1;
FIG. 3 is a top view of the flat resilient plastic member with valves therein and an adhesive ring for connecting the member to a body;
FIG. 4 is a top view of the flat resilient plastic member with valves therein and a belt;
FIG. 5 is a fragmentary view of the invention embodying a second clamping ring.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now in detail to the drawings, wherein embodiments of the invention are shown, and referring, particularly, to FIGS. 1 and 2, the dressing, generally designated by numeral 9, includes a member body 10, that may be constructed of a generally rigid material in the form of a cup, a valve means 12, and a body attaching means or connector. The attaching means may be a clamping means or belt 24-24', connected to the cup-shaped member. The attaching means may be connected to the bottom of the flange 11. The attaching means may also be an adhesive strip 18.
The valves 12 and 12' are connected to the member 10 and may be opened or closed by a stopcock handle 14 which passes through the valve housing 13. Each valve 12 has a hollow stem 15 which protrudes from the housing to allow a tubing to be coupled to the valve. The valves are illustrated in the full open position. As illustrated, external fluids may be allowed to flow into the inner chamber 16 through one valve and out of the inner chamber 16 through the other valve for irrigating the wound.
In a second embodiment, the attaching means may be separate from the body member. The cupshaped member 10 with flange 11 is separate from the adhesive ring 18. The cupshaped member is held over a wound until the adhesive ring is placed over or around the cup-shaped member to secure the flange portion 11 to the body 20. The adhesive ring slot 19 may be opened to place the ring about the member 10.
A preferred embodiment is shown in FIG. 3, the member 21 is a resilient plastic member that expands under pressure into a cup-shaped member. Member 21 as shown in FIG. 3, normally lies in a generally flat position. When blood flows from a wound the member 21 will rise to form a cap-shaped member. The adhesive ring 18 includes a portion 22 secured over the distal edge portion of the resilient member 21. Portion 23 secures the dressing to the skin of the body. The valves 12 and 12' are connected to the resilient member as shown in FIGS. 1 and 2.
In use, the dressing member 10 or 21 is attached over a bleeding wound, with a tube coupled to the stem of at least one open valve 12. The member is then pressed down by placing one's finger on the top of the member 10 in the depression 17. The connector, in the form of an adhesive, or ring 18 is pressed against the skin 20. Blood coming from the wound then enters the chamber 16 and flows out through the valve 12 and the tubing. This allows the skin area within the chamber to be cleaned.
It should be noted that when the detachable connector is used, the skin may be cleaned after the member has been placed over the wound and before the connector is connected to the skin adjacent the wound.
The ring 18 is slipped over the cap 10 by opening slot 19 and passing the ring by the tubing and bulbous portion. The ring is then pressed onto the flange 11 and against the skin 20. A second ring 25 may be placed over the first ring 18 to strengthen the attachment of flange 11 to the skin 20. If the bottom of flange 11 is adhesive, use of adhesive ring 18 may not be necessary. When the invention is firmly fixed in place over the wound, the valves 12 and 12' may be shut off and if the wound is still bleeding, pressure will be built up in the chamber 16 tending to reduce the flow of blood from the wound.
The invention may be used to irrigate wounds by opening both valves 12 and 12' and passing a washing fluid in through one of the valves. The fluid will naturally flow out the other valve 12.
The chamber 16, when coated with chemicals such as antiseptics, coagulants, etc., as illustrated at 31, will act automatically to clean or coagulate the blood. Coating 21 may also be a Teflon surface to allow the member to be removed easily from a wound.
If the wound must be drained, suction may be applied by coupling a vacuum source to the tubing which is connected to an open valve 12.
The instant invention has been shown and described herein, in what is considered to be the most practical and preferred embodiment. It is recognized, however, that departures may be made therefrom within the scope of the invention and that obvious modifications will occur to a person skilled in the art.
In treating wounds in general, and puncture wounds in particular, it is often desirable to completely isolate the wound from the surrounding environment, hence, the advent of the occlusive dressing. However, the standard occlusive dressing may often stick to the wound and actually re-injure the wound when removed.
Other dressings use cup-shaped devices on the wound and have inlets and outlets in the cup so that the wound may be washed without removal of the dressing. These have the advantage of not sticking to the wound upon removal. They, however, have the disadvantages of being open to the atmosphere, thus permitting possible contamination of the wound and allow the wound to continue bleeding.
In the past, when dressings were applied to the area surrounding a bleeding wound, the adhesive part would often be impaired by sticking to dried blood.
SUMMARY OF THE INVENTION
The present improvement to the dressing invention includes a cap member or a resilient member formed into the shape of a cup when under pressure, an attaching means, and valve means. When the cap member and valves, in a open position are attached over the wound, the dressing allows the wound to be irrigated without removing the cap member. The inside of the cap may be coated with a soluable antiseptic to cleanse the wound during irrigation. The valve means may be actuated to completely seal off the wound from the surrounding environment to prevent further bleeding of the wound and to insure the flow of blood in the body of the wound.
In applying the dressing to a bleeding wound, the cap member is first placed over the wound with one of the valves in an open position and then the attaching means is connected to the body. The area under the cap may then be cleaned by allowing the blood to escape out through the open valve. The valve is then closed. As the wound bleeds, the blood pressure within the cap will increase and cause a reduction in the flow of bloodout of the wound. The pressure in the cap will increase until it equals the blood pressure in the body. As the outward flow of blood is stopped, the circulatory flow of blood in the body system past the wound is gradually increased until a normal flow rate is obtained.
Other objects and advantages of the invention will be apparent from the following description and the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a top view of the invention without the adhesive ring;
FIG. 2 is a section of the invention along the line A--A of FIG. 1;
FIG. 3 is a top view of the flat resilient plastic member with valves therein and an adhesive ring for connecting the member to a body;
FIG. 4 is a top view of the flat resilient plastic member with valves therein and a belt;
FIG. 5 is a fragmentary view of the invention embodying a second clamping ring.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now in detail to the drawings, wherein embodiments of the invention are shown, and referring, particularly, to FIGS. 1 and 2, the dressing, generally designated by numeral 9, includes a member body 10, that may be constructed of a generally rigid material in the form of a cup, a valve means 12, and a body attaching means or connector. The attaching means may be a clamping means or belt 24-24', connected to the cup-shaped member. The attaching means may be connected to the bottom of the flange 11. The attaching means may also be an adhesive strip 18.
The valves 12 and 12' are connected to the member 10 and may be opened or closed by a stopcock handle 14 which passes through the valve housing 13. Each valve 12 has a hollow stem 15 which protrudes from the housing to allow a tubing to be coupled to the valve. The valves are illustrated in the full open position. As illustrated, external fluids may be allowed to flow into the inner chamber 16 through one valve and out of the inner chamber 16 through the other valve for irrigating the wound.
In a second embodiment, the attaching means may be separate from the body member. The cupshaped member 10 with flange 11 is separate from the adhesive ring 18. The cupshaped member is held over a wound until the adhesive ring is placed over or around the cup-shaped member to secure the flange portion 11 to the body 20. The adhesive ring slot 19 may be opened to place the ring about the member 10.
A preferred embodiment is shown in FIG. 3, the member 21 is a resilient plastic member that expands under pressure into a cup-shaped member. Member 21 as shown in FIG. 3, normally lies in a generally flat position. When blood flows from a wound the member 21 will rise to form a cap-shaped member. The adhesive ring 18 includes a portion 22 secured over the distal edge portion of the resilient member 21. Portion 23 secures the dressing to the skin of the body. The valves 12 and 12' are connected to the resilient member as shown in FIGS. 1 and 2.
In use, the dressing member 10 or 21 is attached over a bleeding wound, with a tube coupled to the stem of at least one open valve 12. The member is then pressed down by placing one's finger on the top of the member 10 in the depression 17. The connector, in the form of an adhesive, or ring 18 is pressed against the skin 20. Blood coming from the wound then enters the chamber 16 and flows out through the valve 12 and the tubing. This allows the skin area within the chamber to be cleaned.
It should be noted that when the detachable connector is used, the skin may be cleaned after the member has been placed over the wound and before the connector is connected to the skin adjacent the wound.
The ring 18 is slipped over the cap 10 by opening slot 19 and passing the ring by the tubing and bulbous portion. The ring is then pressed onto the flange 11 and against the skin 20. A second ring 25 may be placed over the first ring 18 to strengthen the attachment of flange 11 to the skin 20. If the bottom of flange 11 is adhesive, use of adhesive ring 18 may not be necessary. When the invention is firmly fixed in place over the wound, the valves 12 and 12' may be shut off and if the wound is still bleeding, pressure will be built up in the chamber 16 tending to reduce the flow of blood from the wound.
The invention may be used to irrigate wounds by opening both valves 12 and 12' and passing a washing fluid in through one of the valves. The fluid will naturally flow out the other valve 12.
The chamber 16, when coated with chemicals such as antiseptics, coagulants, etc., as illustrated at 31, will act automatically to clean or coagulate the blood. Coating 21 may also be a Teflon surface to allow the member to be removed easily from a wound.
If the wound must be drained, suction may be applied by coupling a vacuum source to the tubing which is connected to an open valve 12.
The instant invention has been shown and described herein, in what is considered to be the most practical and preferred embodiment. It is recognized, however, that departures may be made therefrom within the scope of the invention and that obvious modifications will occur to a person skilled in the art.