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A suction method and a wound suction system
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A wound and entrance technology, applied in the direction of suction devices, wound drainage devices, etc., can solve problems affecting system pressure, deviation, and difficulty in controlling the correct pressure of the wound
Inactive Publication Date: 2009-03-04
COLOPLAST AS
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Because the pump is located away from the wound and is connected to the wound closure by tubing it can be difficult to control the correct pressure on the wound as the tubing can often fill with fluid or slough from the wound which will affect the pressure in the system
Therefore the negative pressure applied by the pump may deviate from the negative pressure on the wound
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[0101] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.
[0102] figure 1 A schematic diagram of the system is shown. The wound cover 1 seals the wound to form a closure. Fluids in the form of air and liquid wound exudates are pumped through the first conduit 2 by the negative pressure generated by the pump head 4 and the drive unit 13 . The first conduit 2 may consist of several parts and different fittings may be added, eg for detachable connection to a pump and / or to a covering.
[0103] The first conduit 2 is connected to the pump head 4 via the inlet 3 . Air and exudate are delivered to tank 6 via pump head 4 and via outlet 5 . The canister may be any type of cavity suitable for collecting and / or separating air and liquid, such as a flexible bag.
[0104] In tank 6, air and liquid are separated into two phases. Air will pass through outlet 8 while liquid will remain in tank 6 . ...
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Abstract
The present invention provides a pumping system which is used for eliminating fluid in the surface, such the wounded position. The system comprises a covering object (1) which can be attached to the perimeter of the surface to form a closed pumping space hermetical to the surrounding space. The system also comprises a pump (4) which is communicated with the fluid of closing object through a conduit (2) to provide pressure difference between the pumping pressure in the closing object and the atmosphere of the surrounding space. The system comprises a flushing device (11) for cleaning the conduit for improving the well-known system to facilitate the pressure measurement.
Description
technical field [0001] 本发明涉及一种用于排除流体等的方法。这种方法能适用于例如用于增强伤口愈合的伤口治疗。本发明还涉及一种伤口治疗抽吸系统,所述系统包括伤口覆盖物,所述伤口覆盖物可附接到生物的伤口周边上,以形成封闭的抽吸空间。该系统还包括泵,所述泵通过管道在抽吸空间中的抽吸压力与周围空间的空气压力之间提供压差。 Background technique [0002] 业已发现,伤口的流体引流促进组织生长,并由此助长缩短愈合时间。治疗已实行了许多年,并研制出各种治疗设备用于对伤口提供抽吸。 [0003] US 6,648,862描述了一种采用罐的真空干燥器,所述罐装有捕集剂,并且WO 97 / 18007公开了一种便携式伤口治疗设备,所述设备带有罐和泵,所述泵设置在外壳中,该外壳有助于便携使用,例如可在背带上或通过皮带佩戴。 [0004] 在WO 97 / 18007中公开了一种系统,该系统具有与伤口封闭物流体连接的阀,所述阀能被启动,以便减轻伤口上的压力—时间段。当泵操作时阀被关闭。 [0005] 在已知设备中,伤口覆盖物以密封方式固定到生物的皮肤上,从而围绕伤口形成封闭物。覆盖物连接到泵上,并施加吸力,以便在伤口上诱发负压。该吸力使渗出液和其它污染物从封闭物移动到容器,比如用于接收渗出液的罐。过滤器可以防止废气污染周围空间。 [0006] 泵产生施加到伤口上的负压。因为泵远离伤口设置并通过管道连接到伤口封闭物上,所以可能难以控制伤口上的正确压力,因为管道经常可以装满液体或来自伤口的腐肉,这种情况将影响系统中的压力。因此由泵施加的负压可能偏离伤口上的负压。下面,负压表示一种低于基准压力的压力,而基准压力通常是周围大气的压力。 Contents of the invention [0007] 本发明一些实施例的目的是: [0008] —保证正确测量例如用于伤口愈合的负压系统中的压力。 [0009] —达到和保持被治疗的表面上良好形成的负压。 [0010] —在基本上不影响表面上压力的情况下避免拥塞表面与泵之间的管道。 [0011] —提供一种较小功率消耗的系统,用于通过抽吸排除流体。 [0012] 因此,本发明在第一方面提供一种用于从表面排除流体的方法,所述方法包括:...
Claims
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