CN104288874B - Disposable automatic exhaust stops liquid transfusion device and method - Google Patents

Disposable automatic exhaust stops liquid transfusion device and method Download PDF

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CN104288874B
CN104288874B CN201310303542.1A CN201310303542A CN104288874B CN 104288874 B CN104288874 B CN 104288874B CN 201310303542 A CN201310303542 A CN 201310303542A CN 104288874 B CN104288874 B CN 104288874B
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infusion set
liquid
cavity
infusion
filter membrane
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CN104288874A (en
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黄永强
梁永基
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DRAGON HEART MEDICAL DEVICES Co Ltd
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DRAGON HEART MEDICAL DEVICES Co Ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/36Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body
    • A61M5/38Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body using hydrophilic or hydrophobic filters

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  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

本发明公开一种一次性使用自动排气止液输液器和方法,所述输液器包括输液器的上腔和输液器的下腔,所述输液器的上腔与所述输液器的下腔相互嵌接并通过密封连接而成,在由所述输液器的上腔与所述输液器的下腔构成的内腔中之上部设计有空气过滤膜,在所述空气过滤膜的下方安装有药液分流板,在所述输液器下腔的上端设置有药液过滤膜,在所述输液器下腔的下端可以安装止液浮片,在所述输液器下腔的出液处连接有出液接头。本发明所述方法是借助所述药液分流板的分流和压迫作用,将药液所残留的空气气体气泡经所述空气过滤膜和所述输液器上腔的排气口而过滤、排除掉。它在医疗方面中能广泛应用于临床中心静脉导管和外周介入中心静脉等输液。

The invention discloses a one-time use automatic exhaust and stop fluid infusion device and its method. Embedded with each other and formed by sealing connection, an air filter membrane is designed on the upper part of the inner cavity formed by the upper cavity of the infusion set and the lower cavity of the infusion set, and an air filter membrane is installed below the air filter membrane. The liquid medicine splitter plate is provided with a liquid medicine filter membrane at the upper end of the lower chamber of the infusion set, and a liquid-stop floating piece can be installed at the lower end of the lower chamber of the infusion set, and a liquid outlet is connected at the liquid outlet of the lower chamber of the infusion set Outlet connector. The method of the present invention is to filter and get rid of the air gas bubbles remaining in the liquid medicine through the air filter membrane and the exhaust port of the upper chamber of the infusion set by means of the diversion and compression of the liquid medicine splitter plate. . It can be widely used in clinical central venous catheter and peripheral intervention central venous infusion in medical field.

Description

一次性使用自动排气止液输液器和方法Disposable self-venting and liquid-stopping infusion set and method

一、技术领域1. Technical field

本发明属于一种医疗卫生领域中给临床患者进行静脉输液时用的输液装置,具体是涉及在静脉输液中能精密过滤空气气体气泡,安全输液和用药的一次性使用输液器具和方法。The invention belongs to an infusion device used for intravenous infusion for clinical patients in the medical and health field, and in particular relates to a disposable infusion device and method capable of precisely filtering air and gas bubbles during intravenous infusion, safe infusion and medication.

二、背景技术2. Background technology

目前,在医疗临床中,通过静脉穿刺进行输血、输液或药物注射是治疗临床病患者过程中最常见的方法。然而,现有医护人员在给临床病患者进行静脉穿刺输血、输液或药物注射的治疗中,通常为静脉输液。现有普通输液器在给临床病患者治疗的过程中,仍程度不同地存在将药液所残留的空气气体气泡一并输进临床病患者体内的弊端,从而不利于对临床病患者的治疗和康复,给临床病患者带来感染和造成不必要的不安、痛苦,甚至引发医疗事故。这类普通输液器通常是将药液由进液口经中心处直接通过出液接头输进临床病患者的身体内,因此,在此输液过程中,药液与空气气体气泡就难免会相互伴随。At present, in medical clinics, blood transfusion, infusion or drug injection through venipuncture is the most common method in the process of treating patients with clinical diseases. Yet existing medical staff is in the treatment that carries out venous puncture blood transfusion, transfusion or drug injection to clinical patient, usually is intravenous infusion. In the process of treating patients with clinical diseases, the existing common infusion sets still have the disadvantages of injecting the air and gas bubbles left in the liquid medicine into the body of patients with clinical diseases to varying degrees, which is not conducive to the treatment and treatment of patients with clinical diseases. Rehabilitation, bringing infection to clinical patients and causing unnecessary anxiety, pain, and even medical accidents. This type of common infusion set usually directly infuses the medicinal liquid into the body of clinical patients through the liquid inlet through the center through the liquid outlet joint. Therefore, during the infusion process, the medicinal liquid and air gas bubbles will inevitably accompany each other. .

三、发明内容3. Contents of the invention

本发明的目的是要提供一种一次性使用自动排气止液输液器和方法,以克服现有普通输液器在对临床病患者进行静脉穿刺输血、输液或药物注射的治疗过程中,可能会容易将药液所残留的空气气体气泡一并输进临床病患者体内,导致存在不利于对临床病患者的治疗和康复,给临床病患者带来感染和造成不必要的不安、痛苦,甚至引发医疗事故的隐患和技术缺陷。The purpose of the present invention is to provide a one-time use automatic exhaust and stop fluid infusion device and method, to overcome the existing common infusion device in the treatment process of venipuncture blood transfusion, transfusion or drug injection for clinical patients It is easy to inject the air and gas bubbles remaining in the liquid medicine into the body of clinically ill patients, which is not conducive to the treatment and rehabilitation of clinically ill patients, brings infection and unnecessary anxiety and pain to clinically ill patients, and even causes Hidden dangers of medical malpractice and technical defects.

本发明的目的是这样实现的:本发明一次性使用自动排气止液输液器,包括输液器的上腔和输液器的下腔,其特征在于:所述输液器的上腔与所述输液器的下腔相互嵌接并通过密封连接而成,在由所述输液器的上腔与所述输液器的下腔所构成的内腔中之上部设计有空气过滤膜,在所述空气过滤膜的下方安装有药液分流板,在所述输液器下腔的上端设置有药液过滤膜,在所述输液器下腔的下端安装有止液浮片,在所述输液器下腔的出液处连接有出液接头。The purpose of the present invention is achieved in this way: the present invention is a one-time-use automatic exhaust and stop fluid infusion set, comprising an upper cavity of the infusion set and a lower cavity of the infusion set, and is characterized in that: the upper cavity of the infusion set and the infusion set The lower cavity of the infusion set is embedded with each other and is formed by sealing connection. An air filter membrane is designed on the upper part of the inner cavity formed by the upper cavity of the infusion set and the lower cavity of the infusion set. A liquid medicine diverter plate is installed under the membrane, a liquid medicine filter membrane is arranged at the upper end of the lower chamber of the infusion set, a liquid-stop floating sheet is installed at the lower end of the lower chamber of the infusion set, The liquid outlet is connected with a liquid outlet joint.

进一步,本发明一次性使用自动排气止液输液器,在上述技术原理和基础上还可以作出改进,即在所述输液器下腔的下端无须设置止液浮片,同样能达到如本发明实施例之一相同的效果和作用。它包括输液器的上腔和输液器的下腔,其特征在于:所述输液器的上腔与所述输液器的下腔相互嵌接并通过密封连接而成,在由所述输液器的上腔与所述输液器的下腔所构成的内腔中之上部设计有空气过滤膜,在所述空气过滤膜的下方安装有药液分流板,在所述输液器下腔的上端设置有药液过滤膜,在所述输液器下腔的出液处连接有出液接头。Further, the present invention can also make improvements on the basis of the above-mentioned technical principles and foundations for the one-time use of the automatic exhaust and liquid-stopping infusion set, that is, there is no need to install a liquid-stopping floating piece at the lower end of the lower chamber of the infusion set, and the same can be achieved as in the present invention. The same effect and function as one of the embodiments. It includes an upper cavity of an infusion set and a lower cavity of an infusion set, and is characterized in that: the upper cavity of the infusion set and the lower cavity of the infusion set are embedded with each other and are formed by sealing connection, and the An air filter membrane is designed on the upper part of the inner cavity formed by the upper cavity and the lower cavity of the infusion set, and a liquid medicine distribution plate is installed below the air filter membrane, and a The liquid medicine filter membrane is connected with a liquid outlet joint at the liquid outlet of the lower chamber of the infusion set.

本发明一次性使用自动排气止液输液器的方法,其特征在于:本发明给临床病患者输液,药液经所述输液器上腔的进液口,进入所述输液器的上腔内,再经空气过滤膜流进所述药液分流板,借助所述药液分流板的分流和压迫作用,将药液分流到所述药液分流板的过液口,所述过液口设置在所述药液分流板的周边,一方面将药液所残留的空气气体气泡压迫至所述空气过滤膜,然后,这些空气气体气泡经所述空气过滤膜和所述输液器上腔的排气口而过滤、排除掉;另一方面,同时经过了过滤空气气体气泡的药液由所述药液分流板周边的过液口流出,通过药液过滤膜后,集中于由所述输液器的上腔与所述输液器的下腔所构成的内腔之中心处,再透过所述输液器的下腔和/或止液浮片、出液接头和出液口输进临床病患者的身体内。The method for one-time use of the automatic exhaust and liquid-stopping infusion device of the present invention is characterized in that: the present invention infuses clinical patients, and the medicinal liquid enters the upper chamber of the infusion device through the liquid inlet of the upper chamber of the infusion device , and then flow into the liquid medicine distribution plate through the air filter membrane, and by means of the diversion and compression of the liquid medicine distribution plate, the liquid medicine is diverted to the liquid outlet of the liquid medicine distribution plate, and the liquid outlet is set On the periphery of the liquid medicine splitter plate, on the one hand, the air gas bubbles remaining in the liquid medicine are pressed to the air filter membrane, and then these air gas bubbles are discharged through the air filter membrane and the upper cavity of the infusion set. On the other hand, the medicinal liquid that has passed through the filtered air and gas bubbles flows out from the liquid outlet around the medicinal liquid splitter plate, and after passing through the medicinal liquid filter membrane, it is concentrated in the infusion set. The center of the inner cavity formed by the upper cavity of the infusion set and the lower cavity of the infusion set, and then through the lower cavity of the infusion set and/or the liquid stop floating piece, the liquid outlet joint and the liquid outlet to infuse the clinical patient inside the body.

本发明设计科学,产品结构合理,使用方便,安全可靠。它在给临床病患者进行静脉输液的过程中,能精密过滤空气气体气泡,对有效杜绝医疗事故具有非常有益的意义,而且,还大大有利于对临床病患者的治疗和康复。它在医疗方面中能广泛应用于临床中心静脉导管和外周介入中心静脉等输液。The invention has scientific design, reasonable product structure, convenient use, safety and reliability. In the process of intravenous infusion for clinical patients, it can precisely filter air and gas bubbles, which is very beneficial to effectively prevent medical accidents, and is also greatly beneficial to the treatment and rehabilitation of clinical patients. It can be widely used in clinical central venous catheter and peripheral intervention central venous infusion in medical field.

四、附图说明4. Description of drawings

图1、是依据本发明实施例之一提出的结构示意图;Fig. 1 is a schematic structural diagram according to one of the embodiments of the present invention;

图2、是依据本发明实施例之二提出的结构示意图。Fig. 2 is a schematic structural diagram according to the second embodiment of the present invention.

五、具体实施方式5. Specific implementation

下面结合附图和实施例对本发明的结构作进一步描述:Below in conjunction with accompanying drawing and embodiment the structure of the present invention will be further described:

图中标记:1、上腔;1-1、进液口;1-2、排气口;2、空气过滤膜; 3、药液分流板;3-1、过液口; 4、药液过滤膜;5、下腔; 6、止液浮片;7、出液接头;7-1、出液口。Marks in the figure: 1, upper chamber; 1-1, liquid inlet; 1-2, exhaust port; 2, air filter membrane; 3, liquid medicine distribution plate; 3-1, liquid outlet; 4, liquid medicine Filtration membrane; 5. Lower cavity; 6. Liquid stop floating piece; 7. Liquid outlet joint; 7-1. Liquid outlet.

在图1中,本发明实施例之一的一次性使用自动排气止液输液器,包括输液器的上腔1和输液器的下腔5,其特征在于:所述输液器的上腔1与所述输液器的下腔5相互嵌接并通过密封连接而成,在由所述输液器的上腔1与所述输液器的下腔5所构成的内腔中之上部设计有空气过滤膜2,在所述空气过滤膜2的下方安装有药液分流板3,在所述输液器下腔5的上端设置有药液过滤膜4,在所述输液器下腔5的下端安装有止液浮片6,在所述输液器下腔5的出液处连接有出液接头7。In Fig. 1 , the disposable automatic venting liquid stopper infusion set, one of the embodiments of the present invention, includes the upper cavity 1 of the infusion set and the lower cavity 5 of the infusion set, and is characterized in that the upper cavity 1 of the infusion set It is embedded with the lower cavity 5 of the infusion set and is formed by a sealed connection. An air filter is designed on the upper part of the inner cavity formed by the upper cavity 1 of the infusion set and the lower cavity 5 of the infusion set. Membrane 2, a liquid medicine splitter plate 3 is installed below the air filter membrane 2, a liquid medicine filter membrane 4 is arranged at the upper end of the lower cavity 5 of the infusion set, and a liquid medicine filter membrane 4 is installed at the lower end of the lower cavity 5 of the infusion set The liquid stop floating piece 6 is connected with a liquid outlet joint 7 at the liquid outlet of the lower chamber 5 of the infusion set.

在图2中,本发明实施例之二的一次性使用自动排气止液输液器,在上述技术原理和结构基础上还可以作出改进,即在所述输液器下腔5的下端无须设置止液浮片,同样能达到如本发明实施例之一的效果和作用。其具体结构是:它包括输液器的上腔1和输液器的下腔5,所述输液器的上腔1与所述输液器的下腔5相互嵌接并通过密封连接而成,在由所述输液器的上腔1与所述输液器的下腔5所构成的内腔中之上部设计有空气过滤膜2,在所述空气过滤膜2的下方安装有药液分流板3,在所述输液器下腔5的上端设置有药液过滤膜4,在所述输液器下腔5的出液处连接有出液接头7。In Fig. 2, the one-time-use automatic venting liquid-stopping infusion set according to the second embodiment of the present invention can also be improved on the basis of the above-mentioned technical principle and structure, that is, there is no need to set a stopper at the lower end of the lower chamber 5 of the infusion set. The liquid floating sheet can also achieve the effect and effect as one of the embodiments of the present invention. Its specific structure is: it includes the upper cavity 1 of the infusion set and the lower cavity 5 of the infusion set, the upper cavity 1 of the infusion set and the lower cavity 5 of the infusion set are embedded with each other and formed by sealing connection. An air filter membrane 2 is designed on the upper part of the inner cavity formed by the upper cavity 1 of the infusion set and the lower cavity 5 of the infusion set, and a liquid medicine distribution plate 3 is installed below the air filter membrane 2. The upper end of the lower chamber 5 of the infusion set is provided with a liquid medicine filter membrane 4 , and a liquid outlet joint 7 is connected to the liquid outlet of the lower chamber 5 of the infusion set.

其中,上面所述输液器的上腔1在其上端口处设计有进液口1-1,并在其中部至少设计有一个排气口1-2,所述排气口1-2的功能是在输液过程中要将所过滤的空气气体气泡由所述排气口1-2过滤、排除掉;所述出液接头7在其下端口处设计有出液口7-1。Wherein, the upper cavity 1 of the above-mentioned infusion set is designed with a liquid inlet 1-1 at its upper port, and at least one exhaust port 1-2 is designed in the middle thereof, and the function of the exhaust port 1-2 is It is to filter and remove the filtered air and gas bubbles through the exhaust port 1-2 during the infusion process; the liquid outlet joint 7 is designed with a liquid outlet 7-1 at its lower port.

所述药液分流板3的周边设置有若干个过液口3-1,以便于药液透过所述药液分流板3的过液口3-1通过出液接头7和出液口7-1输进临床病患者的身体内。The periphery of the liquid medicine splitter plate 3 is provided with several liquid outlets 3-1, so that the liquid medicine passes through the liquid outlets 3-1 of the liquid medicine splitter plate 3 and passes through the liquid outlet joint 7 and the liquid outlet 7. -1 into the body of a clinically ill patient.

所述药液分流板3的形状不局限于平板或弧板;进一步,为了更加提高过滤空气气体气泡的有效性,因而,能容易将药液所残留的空气气体气泡过滤、排除掉,本发明特在所述药液分流板3的上表面和/或下底面设计为光面或至少各设计有一条加强筋,以减小空气气体气泡在由所述输液器的上腔1与所述输液器的下腔5所构成的内腔中的存在空间,从而在给临床病患者进行静脉输液中达到精密过滤空气气体气泡的效能。这里,所述药液分流板3的加强筋不局限于直条状、弯曲条状或花纹条状。The shape of the liquid medicine splitter plate 3 is not limited to a flat plate or an arc plate; further, in order to further improve the effectiveness of filtering air gas bubbles, therefore, the air gas bubbles remaining in the liquid medicine can be easily filtered and removed, the present invention Especially, the upper surface and/or the lower bottom surface of the liquid medicine splitter plate 3 are designed as a smooth surface or at least one reinforcing rib is designed to reduce air bubbles between the upper chamber 1 of the infusion set and the infusion solution. The existing space in the inner cavity formed by the lower cavity 5 of the device can achieve the efficiency of precision filtering air gas bubbles in the intravenous infusion for clinical patients. Here, the reinforcing ribs of the liquid medicine splitter plate 3 are not limited to the shape of straight strips, curved strips or patterned strips.

本发明一次性使用自动排气止液输液器的方法,是这样实现的:The method of the present invention's one-time use of automatic exhaust and liquid-stopping infusion set is realized in this way:

在实际应用中,将本发明安装在输液导管或输液连接管的任意部位上,所述输液器上腔1的进液口1-1和所述出液接头7的出液口7-1分别连接于输液导管或输液连接管。通过本发明在给临床病患者输液时,药液经所述输液器上腔1的进液口1-1,进入所述输液器的上腔1内,再经空气过滤膜2流进所述药液分流板3,借助所述药液分流板3的分流和压迫作用,将药液分流到所述药液分流板3的过液口3-1,所述过液口3-1设置在所述药液分流板3的周边,一方面将药液所残留的空气气体气泡压迫至所述空气过滤膜2,然后,这些空气气体气泡经所述空气过滤膜2和所述输液器上腔1的排气口1-2而过滤、排除掉;另一方面,同时经过了过滤空气气体气泡的药液由所述药液分流板3周边的过液口3-1流出,通过药液过滤膜4后,集中于由所述输液器的上腔1与所述输液器的下腔5所构成的内腔之中心处,再透过所述输液器的下腔5和/或止液浮片6、出液接头7和出液口7-1输进临床病患者的身体内。这样,就彻底改变了以往普通输液器通常将药液由进液口经中心处直接通过出液接头输进临床病患者的身体内而容易残留空气气体气泡的缺陷,因而此时,通过本发明给临床病患者所输的药液是完全不残留有任何空气气体气泡的,从而满足安全输液的需要和效能。In practical application, the present invention is installed on any part of the infusion catheter or the infusion connecting pipe, the liquid inlet 1-1 of the upper chamber 1 of the infusion set and the liquid outlet 7-1 of the liquid outlet joint 7 are respectively Connected to the infusion catheter or infusion connection tube. Through the present invention, when infusion is given to clinical patients, the medicinal liquid enters the upper chamber 1 of the infusion set through the liquid inlet 1-1 of the upper chamber 1 of the infusion set, and then flows into the said infusion set through the air filter membrane 2. The liquid medicine splitter plate 3, with the help of the diversion and compression of the liquid medicine splitter plate 3, divides the liquid medicine to the liquid outlet 3-1 of the liquid medicine splitter plate 3, and the liquid outlet 3-1 is arranged at The periphery of the liquid medicine distribution plate 3, on the one hand, presses the air gas bubbles remaining in the liquid medicine to the air filter membrane 2, and then these air gas bubbles pass through the air filter membrane 2 and the upper chamber of the infusion set. 1 exhaust port 1-2 and filter, get rid of; Behind the membrane 4, it is concentrated in the center of the inner chamber formed by the upper chamber 1 of the infusion set and the lower chamber 5 of the infusion set, and then passes through the lower chamber 5 and/or the liquid stopper of the infusion set. Sheet 6, liquid outlet joint 7 and liquid outlet 7-1 are input in the body of clinical patient. In this way, it has completely changed the defect that the traditional infusion set usually transports the medicinal liquid from the liquid inlet through the center directly into the body of the clinically ill patient through the liquid outlet, and the air and gas bubbles are easy to remain. The medicinal solution infused to clinical patients does not leave any air gas bubbles at all, so as to meet the needs and efficacy of safe transfusion.

此外,本发明之所以还要在所述输液器下腔5的上端设置药液过滤膜4,是要将药液中所残留的微粒过滤掉,以确保输液安全;同时,本发明实施例之一在所述输液器下腔5的下端所安装的止液浮片6,其作用是当输液完毕时能自动快速关闭输液。In addition, the reason why the present invention also arranges the liquid medicine filter membrane 4 at the upper end of the lower cavity 5 of the infusion set is to filter out the particles remaining in the liquid medicine to ensure the safety of the infusion; meanwhile, the embodiment of the present invention A liquid-stop floating plate 6 installed at the lower end of the lower chamber 5 of the infusion set, its effect is to automatically and quickly close the infusion when the infusion is completed.

以上所述的仅是本发明的优先实施方式。应当指出,对于本领域普通技术人员来说,在不脱离本发明原理的前提下,还可以作出若干变型和改进,这也视为属于本发明的保护范围。例如,本发明所述输液器的上腔1可以设置在本输液器侧面,在输液时药液由设置在所述输液器上腔1侧面的进液口1-1输进药液;同时,还可将所述输液器的下腔5设置在本输液器的另一侧面,药液则由连接于所述输液器下腔5的出液接头7输出。What has been described above are only preferred embodiments of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the principles of the present invention, which are also deemed to belong to the protection scope of the present invention. For example, the upper chamber 1 of the infusion set of the present invention can be arranged on the side of the infusion set, and the liquid medicine is input into the liquid medicine by the liquid inlet 1-1 arranged on the side of the upper chamber 1 of the infusion set during infusion; meanwhile, The lower chamber 5 of the infusion set can also be arranged on the other side of the infusion set, and the liquid medicine is output from the liquid outlet joint 7 connected to the lower chamber 5 of the infusion set.

Claims (4)

1.一种一次性使用自动排气止液输液器,包括输液器的上腔(1)和输液器的下腔(5),其特征在于:所述输液器的上腔(1)与所述输液器的下腔(5)相互嵌接并通过密封连接而成,在由所述输液器的上腔(1)与所述输液器的下腔(5)所构成的内腔中之上部设计有空气过滤膜(2),在所述空气过滤膜(2)的下方安装有药液分流板(3),所述药液分流板(3)的周边设置有若干个过液口(3-1),在所述输液器下腔(5)的上端设置有药液过滤膜(4),在所述输液器下腔(5)的下端安装有止液浮片(6),在所述输液器下腔(5)的出液处连接有出液接头(7),所述出液接头(7)在其下端口处设计有出液口(7-1)。1. A disposable infusion device with automatic exhaust and liquid stoppage, comprising an upper cavity (1) of the infusion set and a lower cavity (5) of the infusion set, characterized in that: the upper cavity (1) of the infusion set is in contact with the infusion set The lower cavity (5) of the infusion set is embedded with each other and connected by sealing, and the upper part of the inner cavity formed by the upper cavity (1) of the infusion set and the lower cavity (5) of the infusion set An air filter membrane (2) is designed, and a liquid medicine splitter plate (3) is installed under the air filter membrane (2), and several liquid outlets (3) are arranged around the liquid medicine splitter plate (3). -1), the upper end of the lower cavity (5) of the infusion set is provided with a liquid medicine filter membrane (4), and the lower end of the lower cavity (5) of the infusion set is equipped with a liquid-stop floating piece (6). The liquid outlet of the lower cavity (5) of the infusion set is connected with a liquid outlet joint (7), and the liquid outlet joint (7) is designed with a liquid outlet (7-1) at its lower port. 2.一种一次性使用自动排气止液输液器,包括输液器的上腔(1)和输液器的下腔(5),其特征在于:所述输液器的上腔(1)与所述输液器的下腔(5)相互嵌接并通过密封连接而成,在由所述输液器的上腔(1)与所述输液器的下腔(5)所构成的内腔中之上部设计有空气过滤膜(2),在所述空气过滤膜(2)的下方安装有药液分流板(3),所述药液分流板(3)的周边设置有若干个过液口(3-1),在所述输液器下腔(5)的上端设置有药液过滤膜(4),在所述输液器下腔(5)的出液处连接有出液接头(7),所述出液接头(7)在其下端口处设计有出液口(7-1)。2. A disposable infusion device with automatic exhaust and liquid stoppage, comprising an upper cavity (1) of the infusion set and a lower cavity (5) of the infusion set, characterized in that: the upper cavity (1) of the infusion set is in contact with the infusion set The lower cavity (5) of the infusion set is embedded with each other and connected by sealing, and the upper part of the inner cavity formed by the upper cavity (1) of the infusion set and the lower cavity (5) of the infusion set An air filter membrane (2) is designed, and a liquid medicine splitter plate (3) is installed under the air filter membrane (2), and several liquid outlets (3) are arranged around the liquid medicine splitter plate (3). -1), a liquid medicine filter membrane (4) is arranged on the upper end of the lower cavity (5) of the infusion set, and a liquid outlet joint (7) is connected to the liquid outlet of the lower cavity (5) of the infusion set, the The liquid outlet joint (7) is designed with a liquid outlet (7-1) at its lower port. 3.根据权利要求1或2所述的一次性使用自动排气止液输液器,其特征在于:所述输液器的上腔(1)在其上端口处设计有进液口(1-1),并在其中部至少设计有一个排气口(1-2)。3. The disposable infusion set with automatic exhaust and liquid stoppage according to claim 1 or 2, characterized in that: the upper cavity (1) of the infusion set is designed with a liquid inlet (1-1) at its upper port ), and at least one exhaust port (1-2) is designed in the middle. 4.根据权利要求1或2所述的一次性使用自动排气止液输液器,其特征在于:所述药液分流板(3)的上表面和/或下底面设计为光面或至少各设计有一条加强筋。4. The one-time-use automatic venting and stopping liquid infusion set according to claim 1 or 2, characterized in that: the upper surface and/or lower bottom surface of the liquid medicine diverter plate (3) are designed as smooth surfaces or at least each Designed with a rib.
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CN106075669A (en) * 2016-08-16 2016-11-09 王高松 Only liquid aerofluxus anti-return liquid medicine filter
CN114870166B (en) * 2016-08-31 2023-06-20 广东龙心医疗器械有限公司 Exhaust joint
CN107754049A (en) * 2016-12-27 2018-03-06 上海交通大学 Prevent the device that remaining needle positive pressure connector pollutes and the method based on the device

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Denomination of invention: One-time use automatic air venting and liquid stopping infusion device and method In the field of medical equipment, there is a need for an improved infusion device that can automatically vent air and stop the flow of liquid. This invention relates to a one-time use automatic air venting and liquid stopping infusion device and method. The device is designed to ensure safe and efficient administration of intravenous fluids by preventing air from entering the patient's bloodstream and stopping the flow when the fluid is exhausted. The method involves the steps of connecting the infusion set to the IV bag, initiating the flow of the fluid, and automatically detecting and removing any trapped air in the tubing. Once the fluid is depleted, the device automatically stops the flow to prevent backflow and contamination. The invention also includes features such as a transparent chamber for visual monitoring of the fluid level and an easy-to-use mechanism for adjusting the flow rate. These i...

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