Surgery – Means for introducing or removing material from body for... – Gas application
Patent
1983-06-13
1986-08-26
Rosenbaum, C. Fred
Surgery
Means for introducing or removing material from body for...
Gas application
128118, 128155, 604289, 604305, A61F 236
Patent
active
046080414
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The invention relates to a device for treatment of wounds in body tissue of patients by exposure of the area of the wound to jets of gas. The device consists of a nozzle pressure unit designed to be placed over the area of the wound in order to cover it, and is provided with an inlet allowing pressure gas to reach the area of the wound and an outlet allowing gas to leave the area of the wound, the inlet of the nozzle pressure unit consisting of a main inlet opening leading to an enclosed space separated from the area of the wound and into which space the gas is passed, and in addition consisting of a plurality of inlet openings leading from the abovementioned space to the area of the wound.
BACKGROUND
Treating a wound with gas, for example oxygen gas, in order to hasten healing of the wound and reduce itching is known, and as a rule it is done by applying a jet of oxygen gas to the wound. Usually this is carried out by means of the end of a hose being held so as to aim at the wound, which requires the presence of staff who have to hold the hose and keep an eye on the exposed wound.
The technical problem
The object of the present invention is to provide a device by means of which continuous treatment with oxygen gas can be carried out without the necessity of staff being present all the time.
The solution
Said object is achieved by means of a device which is characterized in that the nozzle unit is provided with a plurality of outlet openings forming said outlet, which openings are designed to let out the gas straight from the area of the wound into the environment without the gas passing through the abovementioned space on its way from the area of the wound, and in that the inlet openings and the outlet openings are distributed together over the surface of the nozzle unit facing the area of the wound in such a manner that the inlet openings direct a plurality of gas jets at the area of the wound and the outlet openings discharge gas from several different places between the inlet openings.
BRIEF DESCRIPTION OF DRAWINGS
A more detailed description of the invention is given below by means of an example of embodiment with reference to attached drawings in which
FIG. 1 shows a view from above of the device according to the invention, and
FIG. 2 shows a diagrammatic cross section of the device according to the invention applied over a wound of a patient.
BEST MODE OF CARRYING OUT THE INVENTION
The device according to the invention is embodied as a nozzle unit consisting of two layers of plastic foil 1, 2 which are welded or stuck together along an area of their outer edges 3 which is utilised for fixing the unit over the area of a wound 4 (see FIG. 2). The fixing can be carried out by means of plaster, tape 5, or the like. The unit is provided with an inlet opening 6 and an inlet hose 7 connected to a source of pressure gas containing oxygen gas, air, or the like. The device is provided with several sections 8, in the example shown three, along which the two layers of plastic foil 1, 2 are joined by means of welding, glueing or the like. In these sections the device is provided with a plurality of through-going outlet openings 9, disposed in rows which openings thus go through both layers of plastic foil 1, 2. Next to these rows of outlet openings 9, comprising in the example shown three rows of thirteen openings each, there are a number of rows of inlet openings 10. To be more explicit, double rows of inlet openings 10 are situated between the rows of outlet openings 9, while outside the rows of outlet openings 9 extend a row of inlet openings 10 rectangularly. The inlet openings 10 are disposed in only one of the layers of plastic foil, namely the one shown in FIG. 2 and marked 2, these openings thus being directed towards the area of the wound 4. The inlet openings 10 as well as the outlet openings 9 are made simply by perforating the layers of plastic foil.
When the interior of the device is connected to the gas supply by way of the inlet hose 7 there is formed a space 11, co
REFERENCES:
patent: 2998817 (1961-09-01), Armstrong
patent: 3089492 (1963-05-01), Owens
patent: 3467081 (1969-09-01), Glass
patent: 3610238 (1970-04-01), Rich, Jr.
patent: 3920006 (1975-11-01), Lapidus
patent: 4182329 (1980-01-01), Smit et al.
patent: 4224941 (1980-09-01), Stivala
Kartchner Gene B.
Rosenbaum C. Fred
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