WO2013117121A1 - 一种高负压无堵塞引流管 - Google Patents
一种高负压无堵塞引流管 Download PDFInfo
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- WO2013117121A1 WO2013117121A1 PCT/CN2013/070499 CN2013070499W WO2013117121A1 WO 2013117121 A1 WO2013117121 A1 WO 2013117121A1 CN 2013070499 W CN2013070499 W CN 2013070499W WO 2013117121 A1 WO2013117121 A1 WO 2013117121A1
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- built
- drainage
- sleeve
- tube
- drainage tube
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/84—Drainage tubes; Aspiration tips
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/75—General characteristics of the apparatus with filters
Definitions
- the invention relates to a medical device, in particular to a high negative pressure non-clogging drainage tube.
- External drainage refers to the mechanical measures to establish a development channel between the human body cavity, organs, joints, tissues and the like, which is one of the basic operations of surgery.
- the existing surgical drainage tubes mainly include two types of single lumen drainage tubes and two sets of drainage tubes.
- the best drainage effect is the cannula drainage, that is, a double-tube drainage tube utilizing the principle of low negative pressure or gravity drainage, including a built-in sleeve placed in the body cavity of the patient for cleaning, a built-in drainage tube for drainage,
- the medicine pot, the drug feeding catheter and the drainage external tube, the built-in sleeve is outside the built-in drain tube, the front end of the built-in sleeve is open or not open, the front end of the built-in drain tube is open, and the tube wall of the two tubes is provided with a plurality of drainage side holes
- the medicine pot is composed of a front part and a rear part which are connected together by a detachable interface sleeve, and the medicine pot has an outer joint at both ends, and an inner joint at the back of the medicine pot directly and the medicine is added.
- the back end of the pot is connected, and the back of the medicine pot is also provided with a flushing and/or dosing interface.
- the back end of the built-in sleeve is fixed to the front end of the medicine pot, and the rear end of the built-in drain tube is connected to the medicine pot.
- the inner joint of the portion is connected to the draining outer tube that is sleeved at the outer joint of the rear end of the dosing pot.
- the double-cannula drainage end is placed on the wound surface to be drained, and the suture is fixed from the body surface, and the negative pressure drainage device, the suction device or the drainage bag is connected to the rear end of the external tube. If negative pressure drainage is required, the opening at the irrigation interface must be opened to allow air or irrigation fluid to enter the official cavity for wound irrigation and drainage. In order to prevent the drainage tube from being blocked during use, the built-in drainage tube can be replaced.
- the double cannula has the functions of postoperative drainage, wound washing, wound administration, prevention of clogging of the built-in drainage tube, etc.
- the object of the present invention is to provide a high negative pressure non-clogging drainage tube, which can avoid the adhesion of the built-in drainage tube and the wound surface, and can replace the built-in drainage tube, effectively solve the clogging of the drainage tube, and prevent bacteria from entering the drainage area.
- the new type of drainage tube is suitable for occasions where the patient needs to drain the surgical wound or body cavity when suturing the wound in one stage, and the drainage is timely and thorough.
- a high negative pressure non-clogging drainage tube comprising a built-in sleeve with a plurality of casing drainage side holes on the outer surface and a plurality of inner tube drainage side holes on the outer surface
- the built-in drainage tube has a built-in sleeve, and the built-in drainage tube is provided with an end surface of the inner tube drainage side hole and a filter layer, and the built-in drainage tube can be removed from the built-in sleeve.
- the utility model further includes a built-in sleeve coupling head, wherein the built-in sleeve coupling head is provided with a water inlet interface and an air inlet interface, and the water inlet interface and the air inlet interface are connected to the built-in sleeve a water inlet passage on the coupling head, the inlet inlet passage being connectable with an inlet inlet chamber disposed on the built-in sleeve, the built-in sleeve coupling head further provided with a built-in buckle The built-in undercut snaps onto the buckle groove of the built-in drain tube.
- the built-in drainage tube is provided with an inner tube, a joint and an extension tube, and the inner tube drainage side hole is disposed on the inner tube, and the buckle groove is disposed between the joint and the extension tube.
- the filter layer is a medical foam member or a net sleeve having water permeability, water absorption property and no fiber shedding.
- the side wall of the casing drainage hole is a long hole and is evenly distributed on the circumference of the circular section of the inner sleeve.
- the built-in sleeve is an anti-condensation treated inner sleeve
- the built-in sleeve joint is an anti-condensation treated inner sleeve joint
- the extension tube is an anti-condensation treated extension tube
- the built-in sleeve is marked with a radiation developing line and a scale line of the mark length width.
- the invention has the beneficial effects that: the invention provides a filter layer on the built-in drain tube and the built-in drain tube can be replaced, so that when the closed type high vacuum suction is applied, the negative pressure is evenly distributed in the filter through the filtration and attenuation pressure of the filter layer.
- the surface of the layer such as: 1) neither infiltrate the large omentum, the intestinal cavity and other large tissues through the side hole of the drainage tube to cause catheter obstruction, and also avoid the high negative pressure directly acting on the organs or surgical fields such as the stomach, liver and the like.
- Thin liquid and less rigid large-scale drainage material are divided and shaped into granular after higher negative pressure, after passing through the filter layer Entering the built-in drain tube, it is quickly sucked into the negative pressure bottle, and the hard bulky material that may block the drain tube is blocked by the filter layer and attached to the surface of the filter layer, and the drain tube is not easily blocked.
- the built-in casing joint connects the built-in casing and the built-in drainage tube, and forms a completely closed system, which effectively avoids contact between the wound surface and the outside, and no air enters the drainage area, thereby avoiding problems such as surgical or traumatic wound retrograde infection.
- the filter layer is a medical foam member or a net sleeve having water permeability, water absorption property and no fiber falling off.
- the filter layer is fully expanded after being absorbed by water, so as to fill the long hole provided in the built-in sleeve, which can be blocked and divided and shaped.
- the material is drained, and the drainage material is quickly entered into the drainage bottle under high negative pressure to achieve the effect of fully draining and closing the dead space of the wound in the body.
- the adhesion between the medical foam member or the net sleeve and the wound surface is avoided under the isolation of the built-in sleeve, thereby reducing the adhesion of the filter layer to the wound surface.
- the patient may have pain or cause bleeding from the wound when replacing the internal drainage tube.
- the medical foam member or the net sleeve and the drainage material causing the clogging of the drainage tube are separated from the long hole of the built-in sleeve and then pulled out of the body, so that between the drainage side hole and the wound surface of the sleeve Separation, to achieve the purpose of completely unblocking the built-in casing, after replacing the new built-in drainage tube, the entire drainage tube achieves the goal of no blockage.
- the invention can be used as a drainage tube in clinical medicine.
- Figure 1 is a schematic view of the structure of the present invention
- Figure 2 is a half cross-sectional view of the present invention
- FIG. 3 is a schematic structural view of a built-in drainage tube in the present invention.
- Figure 4 is a schematic structural view of a built-in sleeve in the present invention.
- Fig. 5 is a schematic structural view of a built-in bushing in the present invention.
- a high-negative pressure non-clogging drainage tube includes a built-in sleeve 1 having a plurality of casing drainage side holes 11 on an outer surface, and a built-in drainage surface having a plurality of inner tube drainage side holes on the outer surface.
- the tube 2, the built-in drain tube 2 is jacketed with a built-in sleeve 1 , and the end surface of the built-in drain tube 2 provided with the inner tube drainage side hole is covered with a filter layer 6 , and the filter layer is fixed to the built-in drain tube by the elastic fixing sleeve 13 2, the built-in draft tube 2 can be detached from the built-in sleeve 1.
- the negative pressure is uniformly distributed on the surface of the filter layer 6 by the filtration and attenuation pressure of the filter layer 6 during closed high vacuum suction.
- a built-in bushing coupling head 3 is provided, and the built-in bushing coupling head 3 is provided with a water inlet port 4 and an air inlet port 5, and the water inlet port 4 and the air inlet port 5 are connected to An inlet air inlet passage 15 provided on the inner casing coupling head 3, the inlet water inlet passage 15 being connectable with an inlet water inlet chamber 14 provided on the inner casing 1, the built-in casing coupling head
- the built-in undercut 12 is also fastened to the buckle groove 10 of the built-in drain tube 2 .
- the built-in casing joint 3 couples the inner casing 1 and the built-in draft tube 2 and forms a completely closed system, which can be supplied with gas or/and from the inlet port 4 and the inlet port 5 to the enclosed space as needed.
- the liquid causes the material to be drained to be divided and shaped into a granular shape under the action of a higher negative pressure, and enters the built-in drainage tube after passing through the filter layer 6, thereby achieving rapid drainage, and effectively avoiding contact between the wound surface and the outside, and no air entering.
- the drainage area avoids problems such as surgical or traumatic wound retrograde infection.
- the built-in drainage tube 2 is provided with an inner tube 7, a joint 8 and an extension tube 9, which is coupled to the drainage bottle.
- the inner tube drainage side hole is disposed on the inner tube 7, and the buckle groove 10 is disposed between the joint 8 and the extension tube 9, reinforcing the connection stability between the built-in draft tube 2 and the built-in sleeve 1.
- the filter layer 6 is a medical foam member or a net sleeve having water permeability, water absorption performance, and no fiber shedding.
- the medical foam member or the net cover has high water permeability, good water absorption, and no fiber shedding.
- the sleeve side opening 11 is a long hole which is evenly distributed on the circumference of the cross section of the built-in sleeve 1.
- the long hole is a U-shaped hole.
- the filter layer is a medical foam member or a net sleeve which has strong water permeability, good water absorption performance and no fiber falling off.
- the filter layer is fully expanded after being absorbed by water, and the U-shaped hole provided in the built-in sleeve 1 can be filled and blocked, and can be blocked and divided.
- the material to be drained is shaped, and the drainage material is quickly entered into the drainage bottle under high negative pressure to achieve the effect of fully draining and closing the dead space of the wound in the body.
- the built-in drainage tube 2 When it is found that the drainage tube is blocked, the built-in drainage tube 2 needs to be replaced, and the adhesion between the medical foam member or the net sleeve and the wound surface is avoided under the isolation of the built-in sleeve 1, thereby reducing the adhesion of the filter layer to the wound surface. This may lead to pain in the patient's replacement of the built-in drainage tube 2 or may cause bleeding on the wound.
- the medical foam member or the net sleeve and the drainage material causing the clogging of the drainage tube are separated from the U-shaped hole of the built-in sleeve 1 and then pulled out of the body, so that the casing drainage side hole 11 Separation from the wound surface achieves the purpose of completely unblocking the built-in sleeve 1.
- the entire drain tube achieves the goal of no blockage.
- the water in the medical foam member or the net sleeve can be squeezed out to make it easy to separate from the wound surface, and the adhesion between the filter layer and the wound surface is reduced, and the patient replaces the built-in drainage tube 2 when the internal drainage tube 2 is replaced. pain.
- the built-in sleeve 1 is an anti-condensation treated inner sleeve
- the inner sleeve joint 3 is an anti-condensation treated inner sleeve joint
- the extension tube 9 is an anti-condensation treated extension tube.
- the built-in sleeve 1 is marked with a radiation developing line and a scale line of the mark length width.
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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Abstract
一种高负压无堵塞引流管,包括外表面设有多个套管引流侧孔(11)的内置套管(1),以及外表面设有多个内管引流侧孔的内置引流管(2),内置引流管(2)外套有内置套管(1)。所述内置引流管(2)设有内管引流侧孔的端部表面包裹有过滤层(6)。内置引流管(2)可从内置套管(1)内拆卸出来。本发明通过在内置引流管上设置过滤层且内置引流管可更换,从而在封闭式高负压吸引时,通过过滤层的过滤和衰减压力,负压均匀分布于过滤层表面,使待引流物迅速进入引流瓶,且引流管不易堵塞。
Description
技术领域
本发明涉及一种医疗器械,特别是一种高负压无堵塞引流管。
背景技术
外引流是指在人体内腔、器官、关节、组织等与外界间建立开发通道的机械措施,其是外科的基本操作之一。现有的外科用引流管主要有单腔引流管和双套引流管2种。
目前引流效果最好的是套管引流,即有一种利用低负压或重力引流原理的双套管引流管,包括置于病人体腔内起清洗作用的内置套管、引流作用的内置引流管、加药壶、加药导管和引流外界管,内置套管在内置引流管外,内置套管前端开口或不开口,内置引流管前端开口,两管的管壁上均开有多个引流侧孔;加药壶由以可拆装的接口套有接在一起的前部和后部构成,加药壶除了两端均设有外接头外,加药壶后部还有一内接头直接与加药壶后端接头连通,加药壶后部还附有冲洗和/或加药接口,内置套管后端套接固定于加药壶的前端外接头,内置引流管后端接在加药壶后部的内接头上并与套接在加药壶后端外接头的引流外界管相连通。
在手术后,将双套管引流端置于需引流的创面,从体表引出用缝线固定,引流外界管后端接负压引流装置、吸引器或引流袋等。如果需要接负压引流时,必须打开冲洗接口处开口,让空气或冲洗液进入官腔进行创面冲洗和引流。使用过程中,为了防止引流管阻塞,可以更换内置引流管。该双套管具有术后导入引流、创面冲洗、创面给药、防止内置引流管堵塞等功能,是目前功能最齐全,最先进的术后引流管,但是其仍然存在以下缺陷:1)不能完全解决影响引流效果的关键“瓶颈”问题——引流管堵塞(注:虽然内置引流管可以更换,但是套在内置引流管外的内置套管的套管引流孔仍然会堵塞);2)当利用负压主动引流时,套管引流需空气或药液不断进入被引流区,容易在局部形成腔隙,也增加了空气中得细菌进入被引流区的危险;3)只能应用重力或低负压进行引流,而重力及低负压引流的最大缺点是引流的不及时、不彻底,亦难在短时间里消除残留死腔;4)引流管***人体并使用一段时间后,引流管与创面之间容易形成粘连,不容易拔出,并在拔出过程中具有引发创面出血的危险。引流术是外科的基本技术,应用极广,但由于以上原因引流失败的个案还时有发生。
发明内容
本发明的目的,在于提供一种高负压无堵塞引流管,其能避免了内置引流管与创面粘连,并可更换内置引流管,有效解决引流管堵塞,又能防止细菌进入被引流区的新型引流管,适用于患者进行一期缝合伤口时存在手术创面或体腔需要引流的场合,且引流及时彻底。
本发明解决其技术问题的解决方案是:一种高负压无堵塞引流管,包括外表面设有多个套管引流侧孔的内置套管以及外表面设有多个内管引流侧孔的内置引流管,内置引流管外套有内置套管,所述内置引流管设有内管引流侧孔的端部表面包裹有过滤层,内置引流管可从内置套管内拆卸出来。
作为上述技术方案的进一步改进,还包括内置套管联接头,所述内置套管联接头上设有进水接口以及进气接口,所述进水接口和进气接口连接至设置在内置套管联接头上的进水进气通道,所述进水进气通道可与设置在内置套管上的进水进气腔联接,所述内置套管联接头上还设置有内置倒扣,所述内置倒扣扣合在内置引流管的扣槽上。
作为上述技术方案的进一步改进,所述内置引流管上设有内管、接头以及延长管,所述内管引流侧孔设置在内管上,所述扣槽设置在接头与延长管间。
作为上述技术方案的进一步改进,所述过滤层为具有透水性、吸水性能且无纤维脱落的医用泡沫构件或网套。
作为上述技术方案的进一步改进,套管引流侧孔为长孔,且均匀分布在内置套管的截面圆的圆周上。
作为上述技术方案的进一步改进,所述内置套管为抗凝处理过的内置套管,内置套管接头为抗凝处理过的内置套管接头,延长管为抗凝处理过的延长管;所述内置套管标记有放射显影线和标记长度宽度的刻度线。
本发明的有益效果是:本发明通过在内置引流管上设置过滤层且内置引流管可更换,那么在封闭式高负压吸引时,通过过滤层的过滤和衰减压力,负压均匀分布于过滤层表面,这样一来:1)既不会通过引流管侧孔吸入大网膜、肠腔等大块组织引起导管阻塞,也避免了高负压直接作用于肠胃、肝脏等脏器或手术野软组织所导致的脏器穿孔、坏死、创面出血等并发症;2)稀薄液体和不太坚硬的大块引流物在较高负压作用下被分割、塑形后成为颗粒状,经过过滤层后进入内置引流管,被迅速吸入负压瓶,而有可能堵塞引流管的较硬的大块脱落物质则被过滤层阻挡,附在过滤层表面,引流管不易堵塞。
内置套管联接头将内置套管和内置引流管联接,并形成一个完全封闭的***,有效避免创伤面与外界接触,更无空气进入引流区,避免了手术或外伤创面逆行感染等问题。
过滤层为具有透水性、吸水性能且无纤维脱落的医用泡沫构件或网套,该过滤层吸水后充分膨胀,即可达到填充设在内置套管的长孔,可阻挡并分割、塑形待引流物质,并使引流物质在高负压下迅速进入引流瓶,达到充分引流和闭合体内创面死腔的效果。当发现引流管有堵塞可能,需要更换内置引流管时,在内置套管隔离作用下,避免了医用泡沫构件或网套与创面之间的粘连,从而减轻了过滤层与创伤面粘结而导致患者在更换内置引流管时的痛苦或引发创面出血可能。在拔出内置引流管时,医用泡沫构件或网套与引起引流管堵塞的引流物等从内置套管的长孔中分离后拔出体外,这样一来,套管引流侧孔与创面之间分离,达到了彻底疏通内置套管的目的,更换新的内置引流管后,整条引流管达到无堵塞的目标。
本发明可作为引流管适用于临床医疗中。
附图说明
下面结合附图及实例对本发明作进一步的说明。
图1是本发明的结构示意图;
图2是本发明的半剖图;
图3是本发明中的内置引流管的结构示意图;
图4是本发明中的内置套管的结构示意图;
图5是本发明中的内置套管的结构示意图。
具体实施方式
下面结合附图,详细说明本发明在手术后引流的应用。
参照图1~图5,一种高负压无堵塞引流管,包括外表面设有多个套管引流侧孔11的内置套管1以及外表面设有多个内管引流侧孔的内置引流管2,内置引流管2外套有内置套管1,所述内置引流管2设有内管引流侧孔的端部表面包裹有过滤层6,该过滤层用弹性固定套13固定在内置引流管2上,内置引流管2可从内置套管1内拆卸出来。
通过在内置引流管2上设置过滤层6且内置引流管2可更换,那么在封闭式高负压吸引时,通过过滤层6的过滤和衰减压力,负压均匀分布于过滤层6表面,这样一来:1)既不会通过引流管侧孔吸入大网膜、肠腔等大块组织引起导管阻塞,也避免了高负压直接作用于肠胃、肝脏等脏器或手术野软组织所导致的脏器穿孔、坏死、创面出血等并发症;2)稀薄液体和不太坚硬的大块引流物在较高负压作用下被分割、塑形后成为颗粒状,经过过滤层6后进入内置引流管2,被迅速吸入负压瓶,而有可能堵塞引流管的较硬的大块脱落物质则被过滤层6阻挡,附在过滤层6表面,引流管不易堵塞。
进一步作为优选的实施方式,还包括内置套管联接头3,所述内置套管联接头3上设有进水接口4以及进气接口5,所述进水接口4和进气接口5连接至设置在内置套管联接头3上的进水进气通道15,所述进水进气通道15可与设置在内置套管1上的进水进气腔14联接,所述内置套管联接头3上还设置有内置倒扣12,所述内置倒扣12扣合在内置引流管2的扣槽10上。
内置套管联接头3将内置套管1和内置引流管2联接,并形成一个完全封闭的***,可根据需要,从进水接口4以及进气接口5向封闭的空间通入气体或/和液体,使待引流物质在较高负压作用下被分割、塑形后成为颗粒状,经过过滤层6后进入内置引流管,实现快速引流,且有效避免创伤面与外界接触,更无空气进入引流区,避免了手术或外伤创面逆行感染等问题。
进一步作为优选的实施方式,所述内置引流管2上设有内管7、接头8以及延长管9,延长管9联接至引流瓶。内管引流侧孔设置在内管7上,所述扣槽10设置在接头8与延长管9间,加强了内置引流管2和内置套管1间的连接稳定性。
进一步作为优选的实施方式,所述过滤层6为具有透水性、吸水性能且无纤维脱落的医用泡沫构件或网套,该医用泡沫构件或网套透水性强、吸水性好且无纤维脱落。
进一步作为优选的实施方式,套管引流侧孔11为长孔,所述长孔均匀分布在内置套管1的截面圆的圆周上,本发明优选长孔为U型孔进行说明。熟悉本领域的技术人员在不违背本发明精神的前提下还可以对长孔的形状作出种种的等同变型或替换,这些等同的变型或替换均包含在本申请权利要求所限定的范围内。
过滤层为透水性强、吸水性能好且无纤维脱落的医用泡沫构件或网套,该过滤层吸水后充分膨胀,即可达到填充设在内置套管1的U型孔,可阻挡并分割、塑形待引流物质,并使引流物质在高负压下迅速进入引流瓶,达到充分引流和闭合体内创面死腔的效果。当发现引流管有堵塞可能,需要更换内置引流管2时,在内置套管1隔离作用下,避免了医用泡沫构件或网套与创面之间的粘连,从而减轻了过滤层与创伤面粘结而导致患者在更换内置引流管2时的痛苦或引发创面出血可能。在拔出内置引流管2时,医用泡沫构件或网套与引起引流管堵塞的引流物等从内置套管1的U型孔中分离后拔出体外,这样一来,套管引流侧孔11与创面之间分离,达到了彻底疏通内置套管1的目的,更换新的内置引流管2后,整条引流管达到无堵塞的目标。往外拔内置引流管2时,可将医用泡沫构件或网套内的水挤出,使其容易与创伤面分离,减轻了过滤层与创伤面粘结而导致患者在更换内置引流管2时的痛苦。
进一步作为优选的实施方式,所述内置套管1为抗凝处理过的内置套管,内置套管接头3为抗凝处理过的内置套管接头,延长管9为抗凝处理过的延长管;所述内置套管1标记有放射显影线和标记长度宽度的刻度线。
以上是对本发明的较佳实施方式进行了具体说明,但本发明创造并不限于所述实施例,熟悉本领域的技术人员在不违背本发明精神的前提下还可作出种种的等同变型或替换,这些等同的变型或替换均包含在本申请权利要求所限定的范围内。
Claims (6)
- 一种高负压无堵塞引流管,包括外表面设有多个套管引流侧孔(11)的内置套管(1)以及外表面设有多个内管引流侧孔的内置引流管(2),内置引流管(2)外套有内置套管(1),其特征在于:所述内置引流管(2)设有内管引流侧孔的端部表面包裹有过滤层(6),内置引流管(2)可从内置套管(1)内拆卸出来。
- 根据权利要求1所述的高负压无堵塞引流管,其特征在于:还包括内置套管联接头(3),所述内置套管联接头上设有进水接口(4)以及进气接口(5),所述进水接口(4)和进气接口(5)连接至设置在内置套管联接头(3)上的进水进气通道(15),所述进水进气通道(15)可与设置在内置套管(1)上的进水进气腔(14)联接,所述内置套管联接头(3)上还设置有内置倒扣(12),所述内置倒扣(12)扣合在内置引流管(2)的扣槽(10)上。
- 根据权利要求2所述的高负压无堵塞引流管,其特征在于:所述内置引流管(2)上设有内管(7)、接头(8)以及延长管(9),内管引流侧孔设置在内管(7)上,所述扣槽(10)设置在接头(8)与延长管(9)间。
- 根据权利要求1、2或3所述的高负压无堵塞引流管,其特征在于:所述过滤层(6)为具有透水性、吸水性能且无纤维脱落的医用泡沫构件或网套。
- 根据权利要求4所述的高负压无堵塞引流管,其特征在于:套管引流侧孔(11)为长孔,且均匀分布在内置套管(1)的截面圆的圆周上。
- 根据权利要求5所述的高负压无堵塞引流管,其特征在于:所述内置套管(1)为抗凝处理过的内置套管,内置套管接头(3)为抗凝处理过的内置套管接头,延长管(9)为抗凝处理过的延长管;所述内置套管(1)标记有放射显影线和标记长度宽度的刻度线。
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