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Publication numberCN103536983 A
Publication typeApplication
Application numberCN 201310443174
Publication date29 Jan 2014
Filing date26 Sep 2013
Priority date26 Sep 2013
Also published asCN103536983B
Publication number201310443174.0, CN 103536983 A, CN 103536983A, CN 201310443174, CN-A-103536983, CN103536983 A, CN103536983A, CN201310443174, CN201310443174.0
Inventors王行环
Applicant王行环
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
H-matic pressure control infusion pump
CN 103536983 A
Abstract
The invention discloses an H-matic pressure control infusion pump which comprises a silica gel balloon. A liquid inlet and a liquid outlet are respectively formed in the two ends of the silica gel balloon. The liquid inlet is connected with an upper infusion tube. The liquid outlet is connected with a lower infusion tube. A liquid inlet connector is arranged between the liquid inlet and the upper infusion tube. An upper valve core is arranged in the liquid inlet connector. The end portion of the upper valve core is in a taper shape and abuts against and is matched with an orifice of the upper infusion tube. A plurality of upper valve core liquid passages are arranged around the valve body of the upper valve core. A liquid outlet connector is arranged between the liquid outlet and the lower liquid infusion tube. A lower valve core is arranged in the liquid outlet connector. A lower valve core central liquid passage is formed in the shaft center of the lower valve core. The end portion of the lower valve core is in a taper shape and abuts against and is matched with the liquid outlet. A plurality of valve core liquid passages are formed around the valve body of the lower valve core. An abutting spring is arranged between the valve body of the lower valve core and the lower infusion tube. The H-matic pressure control infusion pump can control the speed and the pressure of infusion in real time in the infusion process.
Claims(9)  translated from Chinese
1.一种手自一体控压输注泵,包括硅胶球囊(I),所述硅胶球囊(I)两端分别设有进液口(2)和出液口(3),所述进液口(2)与上输液管(4)相连接,所述出液口(3)与下输液管(5)相连接,其特征在于: 所述进液口(2)与上输液管(4)之间设置有进液接头(6),进液接头(6)内设置有一个上阀芯(7),所述上阀芯(7)由上阀芯端部(71)和上阀芯阀体(72)组成,上阀芯端部(71)呈锥形,与上输液管(4)管口抵接配合;所述上阀芯阀体(72)周边开设有若干上阀芯液体通道(8); 所述出液口(3)与下输液管(5)之间设置有出液接头(9),出液接头(9)内设置有一个下阀芯(10),所述下阀芯(10)的轴心部位开设有下阀芯中心液体通道(11),所述下阀芯(10)由下阀芯端部(101)和下阀芯阀体(102)组成,下阀芯端部(101)呈锥形,与出液口(3)管口抵接配合;所述下阀芯阀体(102)周边开设有若干下阀芯液体通道(12);所述下阀芯阀体(102)与下输液管(5)之间设置有抵接弹簧(13)。 A manual control of pressure infusion pump, including silicone balloon (I), a silicone balloon (I) are provided at both ends of the inlet (2) and an outlet (3), the the inlet (2) and the infusion tube (4) is connected to the liquid outlet (3) and lower the infusion tube (5) is connected, characterized in that: the inlet (2) and the infusion tube provided with inlet connector (6) (4) between the inlet connector (6) is provided with an upper spool (7), the upper valve body (7) consists of a valve portion (71) and on spool valve (72), with the valve portion (71) is tapered, and the infusion tube (4) with the nozzle abutting; the upper spool valve body (72) surrounding the creation of a number of valve core liquid passage (8); provided that the liquid between the inlet (3) and lower the infusion tube (5) fluid connector (9), a fluid connector (9) is provided inside has a lower spool (10), the lower valve body (10) of the axis of the spool center at the site opened a liquid channel (11), said lower valve body (10) by the valve portion (101) and a lower spool valve (102) Composition, lower valve portion (101) is tapered, and the liquid outlet (3) abuts with the nozzle; said lower valve body (102) surrounding the valve body opening at a number of liquid passages (12); a valve body disposed between said lower valve body (102) and the lower infusion tube (5) has a spring abutment (13).
2.根据权利要求1所述的手自一体控压输注泵,其特征在于:所述进液口(2)内径大于所述出液口(3)的内径。 Manual control according to claim 1 wherein the pressure infusion pump, characterized in that: said inlet (2) is greater than the inner diameter of said liquid outlet (3) of the inner diameter.
3.根据权利要求1或2所述的手自一体控压输注泵,其特征在于:所述出液口(3)内设置有止回阀(14)。 3. The manual pressure control according to claim 1 or 2 wherein the infusion pump, characterized in that: said liquid outlet provided with a check valve (3) (14).
4.根据权利要求1或2所述的手自一体控压输注泵,其特征在于:所述下阀芯端部(101)的顶端内径小于出液口(3)内径。 4. The manual control pressure infusion pump according to claim 1 or claim 2, wherein: said lower end portion of the valve body (101) is smaller than the inner diameter of the top of the liquid outlet (3) inside diameter.
5.根据权利要求3所述的手自一体控压输注泵,其特征在于:所述下阀芯端部(101)的顶端内径小于出液口(3)内径。 Manual control according to claim 3, wherein the pressure infusion pump, characterized in that: said valve body lower end portion (101) is smaller than the inner diameter of the top of the liquid outlet (3) inside diameter.
6.根据权利要求1或2所述的手自一体控压输注泵,其特征在于:所述出液接头(9)上设置有压力检测器(15),所述压力检测器(15)的压力检测探头设置在出液接头(9)内壁上。 6. The manual control pressure infusion pump according to claim 1 or claim 2, wherein: said provided with a pressure detector (15) on the fluid fitting (9), said pressure detector (15) The pressure sensing probe set (9) on the inner wall of the fluid connector.
7.根据权利要求3所述的手自一体控压输注泵,其特征在于:所述出液接头(9)上设置有压力检测器(15),所述压力检测器(15)的压力检测探头设置在出液接头(9)内壁上。 Manual control according to claim 3, wherein the pressure infusion pump, characterized in that: said the set pressure detector (15) fluid connector (9), said pressure detector (15) of pressure detection probe disposed in the fluid connector (9) on the inner wall.
8.根据权利要求1或2所述的手自一体控压输注泵,其特征在于:所述上阀芯阀体(72)周边开设的上阀芯液体通道(8)数量为4~8个。 8. The manual pressure control infusion pump 1 or 2 of the preceding claims, wherein: the spool valve (72) opened on the periphery of the valve body fluid passage (8) Number 4-8 a.
9.根据权利要求1或2所述的手自一体控压输注泵,其特征在于:所述下阀芯阀体(102)周边开设的下阀芯液体通道(12)数量为4~8个。 9. The manual pressure control according to claim 1 or 2, wherein the infusion pump, characterized in that: said lower valve body (102) opened at the periphery of the valve body fluid passage (12) Number 4-8 a.
Description  translated from Chinese

手自一体控压输注泵技术领域 Manual pressure control infusion pump technology field

[0001] 本发明属于医疗器械技术领域,具体是指一种用于对液体的输注速度及输注压力进行实时控制的手自一体控压输注泵。 [0001] The present invention belongs to the field of medical technology equipment, specifically refers to a manual control of pressure infusion pumps for the infusion rate and infusion fluid pressure in real-time control.

背景技术 Background

[0002] 在不同的医疗情形下对输液量和输注压力的要求也不相同,如普通门诊病人输液时对单位时间内输液的量和输注压力没有精确的要求,而在手术过程中的一些血管活性药物的输注时,需要对单位时间内输液量有精确的控制,对于大出血病人的输液和输血则需要对输注压力进行一定的控制。 [0002] In the case of different medical fluid volume and infusion pressure requirements are not the same as ordinary outpatient transfusion and infusion pressure on the amount of fluid per unit of time is not precise requirements, and the surgical procedure Some infusion of vasoactive drugs, the need for transfusion volume per unit of time have precise control of bleeding the patient for infusion and transfusion of infusion pressure requires a certain degree of control. 因此,为适应不同医疗情形,需要采用不同的液体输注设备。 Therefore, in order to adapt to different medical situations require different liquid infusion device.

[0003]目前市场上现有解决液体输注速度及输注压力改变的方法有滴注、推注及滚轮式灌注的方式。 [0003] The currently available solutions on the market liquid drip infusion rate and infusion pressure change method and roller bolus infusion approach. 滴注是采取液体自然落差所产生的压力进行液体的输注,优点是结构简单、操作方便、成本低,但无法精确控制液体的输注压力,也无法完成瞬时定压解决大量液体的输注问题;推注是采取特定的机械控制原理产生匀速的推力控制液体的输注,优点是能精确的控制单位时间内的输液量,但其输注器的控制结构复杂、操作繁琐、成本高,并只能是一定量(一般不超过60ml)内进行的液体传输,无法便捷地进行大量液体的输注;而滚轮式灌注是采取滚轮挤压输液管道产生一定的脉冲压而进行液体的输注,优点是对输注液体的量没有特殊的要求,可随意调节输注速度,是目前对大量液体进行控制性量化输注的唯一方式,但采用其输注时,液体在传输中会形成脉冲波,无法提供恒定的输注压力从而影响一些特定的检查结果,特别在进行血液输注时由于滚轮的挤压可能破坏血液中的有形血细胞成分。 Infusion is to take the pressure generated by the liquid drop naturally infused liquids, the advantage of simple structure, easy operation, low cost, but you can not precisely control the pressure of the liquid infusion, can not be completed instantaneously constant pressure to solve a lot of liquid infusion question; bolus is to take specific mechanical control principles produce uniform thrust control infusion fluid, the advantage can accurately control the amount of fluid per unit time, the control structure of their infusions's complex, cumbersome operation, high cost, and only a certain amount (usually less than 60ml) performed within fluid transport, can not easily be infused large amounts of liquid; and roller perfusion fluid conduit is to take the wheel pressing a certain pressure and pulse infused liquid , the advantage is on the amount of infusion fluid no special requirements, the infusion rate can be adjusted, is at present the only way to quantify a large number of liquid controlled infusion, but with its infusion liquid form in the transmission pulse wave, can not provide a constant infusion pressure thereby affecting certain test results, especially when running a blood transfusion due to the squeeze rollers may damage blood visible blood cell component.

发明内容 DISCLOSURE

[0004] 本发明的目的就是针对现有技术的不足,提供一种可在输液过程中实时控制输注的速度和压力的手自一体控压输注泵。 [0004] The present invention is for the deficiencies of the prior art, to provide a real-time control infusion rate during the infusion and pressure manual control pressure infusion pumps.

[0005] 为实现上述目的,本发明的手自一体控压输注泵,包括硅胶球囊,所述硅胶球囊两端分别设有进液口和出液口,所述进液口与上输液管相连接,所述出液口与下输液管相连接,其特殊之处在于: [0005] To achieve the above purpose, manual pressure control infusion pump of the present invention includes a silicone balloon, the silicone balloon ends were provided with a liquid inlet and a liquid outlet, the inlet port and the infusion tube connected to a liquid outlet and the infusion tube is connected at its special because:

[0006] 所述进液口与上输液管之间设置有进液接头,进液接头内设置有一个上阀芯,所述上阀芯由上阀芯端部和上阀芯阀体组成,上阀芯端部呈锥形,与上输液管管口抵接配合;所述上阀芯阀体周边开设有若干上阀芯液体通道; [0006] provided between the inlet port and the infusion tube has a liquid inlet fitting, is provided with an inlet connector on the spool, the spool on the spool by the upper end and the spool valve body, the valve portion is tapered, and the infusion tube port abutting cooperation; spool valve body surrounding the valve plug on the creation of a number of liquid passage;

[0007] 所述出液口与下输液管之间设置有出液接头,所述出液接头内设置有一个下阀芯,所述下阀芯的轴心部位开设有下阀芯中心液体通道,所述下阀芯由下阀芯端部和下阀芯阀体组成,下阀芯端部呈锥形,与出液口管口抵接配合;所述下阀芯阀体周边开设有若干下阀芯液体通道;所述下阀芯阀体与下输液管之间设置有抵接弹簧。 [0007] The liquid is disposed between the port and the next there is a liquid infusion tube fittings, said the interior was provided with a lower valve body joints, the lower part of the axis of the spool valve body opened a center under the liquid passage said lower valve body by the valve portion and the lower spool valve body, tapered at the ends of the spool, and a liquid outlet nozzle abutting cooperation; the lower periphery of the spool valve body has a number of open liquid passage under the spool; spool valve is disposed between the lower infusion tube abuts under spring.

[0008] 进一步地,所述进液口内径大于所述出液口内径,这样便于硅胶球囊中液体的积蓄。 [0008] Further, the liquid inlet inner diameter larger than the inner diameter of the liquid outlet, it is easy to accumulation of liquid silicone balloon.

[0009] 再进一步地,所述出液口内设置有止回阀,该止回阀只允许液体从硅胶球囊向下输液管方向单向流动,因而能有效防止硅胶球囊在受挤压后回弹时下输液管中液体倒流回硅胶球囊。 [0009] Still further, the check valve is provided within the liquid outlet, the check valve allowing only unidirectional flow of fluid from the infusion tube silicone balloon downward direction, which can effectively prevent the silicone balloon is squeezed after Rebound nowadays backflow of liquid infusion tube silicone balloon.

[0010] 还进一步地,所述下阀芯端部顶端内径小于出液口内径,这样所述下阀芯端部的顶端能抵接并伸入出液口一部分,能与出液口紧密配合并且当出液口内液体压力达到一定程度时能将下阀芯推开。 [0010] Still further, the top end portion of the lower valve body is smaller than the inner diameter of the inner diameter of the liquid outlet, so that the top end of the lower valve body portion abuts and can extend into a portion of the liquid outlet, can work closely with a liquid outlet and when the fluid pressure within the liquid outlet reaches a certain level can push down the spool.

[0011] 还进一步地,所述出液接头上设置有压力检测器,所述压力检测器的压力检测探头设置在出液接头的内壁上与出液接头内的液体相接触,这样压力检测器能实时检测出硅胶球囊中输注液体的压力大小,从而可以实现对输注液体压力实时控制,并可控制在恒定的压力条件下输注液体。 [0011] Still further, said the pressure detector is provided with a pressure detector detects a pressure sensor disposed in the inner wall of the fluid within the joint fluid and fluid connector contact, so that the fluid pressure sensor connector real-time detection of liquid silicone balloon infusion of pressure, which can achieve real-time control of the infusion fluid pressure can be controlled at a constant infusion of fluid pressure.

[0012] 进一步地,所述上阀芯阀体周边开设的上阀芯液体通道数量为4~8个;所述下阀芯阀体周边开设的下阀芯液体通道数量为4~8个。 [0012] Further, the number of liquid passage on the spool valve body surrounding the valve opening is 4 to 8; the lower periphery of the spool valve spool liquid passages opened at number 4 to 8.

[0013] 本发明的手自一体控压输注泵的工作原理为:正常自动输液状况下,该手自一体控压输注泵是竖直放置的,由于重力作用,上阀芯自然与上输液管管口相脱离,上输液管中的药液可从上阀芯阀体周边的上阀芯液体通道流入硅胶球囊中;由于下阀芯阀体与下输液管之间设置的抵接弹簧的作用,使得自动输液状态下下阀芯端部的顶端处于与出液口相抵接状态,硅胶球囊中的液体流经出液口、下阀芯中心液体通道、下输液管后自动正常输送药液。 [0013] The manual control of pressure infusion pump working principles of the invention as follows: under normal automatic infusion condition, the manual pressure control infusion pump is placed vertically, due to gravity, the natural and the spool infusion tube is disengaged from the mouth, the liquid infusion tube from the periphery of the spool on the spool valve body fluid passage flows into the silicone balloon; the spool valve is disposed between the lower and lower infusion tube abuts action of the spring, so that the automatic infusion of state at the top of the valve portion is in contact with the liquid outlet offset state, silicone balloon in the fluid through the fluid outlet, liquid passage at the center of the spool, automatic normal after the next infusion tube conveying liquid. 输液过程中,在需要加大灌注量时,手动挤压硅胶球囊,受硅胶球囊中液体压力作用,上阀芯上行,上阀芯端部抵接上输液管的管口,阻止了硅胶球囊内的液体倒流;下阀芯受出液口内液体压力作用下行,压缩抵接弹簧收缩,下阀芯端部与出液口分离开,硅胶球囊内的液体可同时通过下阀芯中心液体通道和下阀芯液体通道下流,使得下输液管中的液体液压增加、流量增加,即可实现加速、加量、加压输注液体的功能。 During infusion, perfusion when needed to increase the amount of manual squeezing silicone balloon that is liquid silicone balloon pressure, the spool up, the valve portion abutting the nozzle connected to the infusion tube, preventing the silicone the liquid inside the balloon back; under the spool by the liquid within the liquid outlet pressure downward, compressing the spring abuts shrink, lower valve portion and a liquid outlet is separated from the liquid silicone balloon within the same time under the spool by the central liquid passage and the lower valve body fluid passage downstream, so that the next infusion tube hydraulic fluid increases, the flow rate increases, you can achieve acceleration, increase the amount of pressurized fluid infusion function.

[0014] 本发明的手自一体控压输注泵的结构简单、操作方便,能够在输液过程中实现实时控制输注速度和压力,为在一定时间内通过持续灌注液体维持特定腔腔隙的容量和压力提供了安全保障,避免由于压力过高导致受液者脏器损伤;同时,也消除了通过滚轮式灌注方式形成的脉冲波,以及进行血液输注时由于滚轮的挤压对血液中的有形血细胞成分的破坏。 [0014] A simple manual pressure-controlled infusion pump structure of the present invention, easy to operate, can achieve real-time control of the infusion rate and pressure during the infusion, to maintain a particular chamber compartment for a certain time by infusion fluid volume and pressure to provide security, to avoid the pressure is too high the liquid by organ damage; the same time, eliminate the pulse wave formed by roller perfusion, and blood infusion rollers squeeze due to blood physical damage to the blood cell components.

附图说明 Brief Description

[0015] 图1为一种手自一体控压输注泵结构示意图。 [0015] FIG. 1 as a manual pressure control Schematic diagram of an infusion pump.

[0016] 图2为上阀芯结构示意图。 [0016] FIG. 2 is a schematic view of the valve structure.

[0017] 图3为图2中上阀芯的左视结构示意图。 [0017] FIG. 3 is a schematic structural view of the spool on the left in Figure 2.

[0018] 图4为图3中的上阀芯AA向剖视结构示意图 [0018] FIG. 4 in Figure 3 on the spool to a cross-sectional schematic view of the structure of AA

[0019] 图5下阀芯结构示意图。 [0019] FIG. 5 spool structure diagram.

[0020] 图6为图5中下阀芯的左视结构示意图。 [0020] FIG. 6 is a left side view of the valve body structure diagram in Figure 5 below.

[0021] 图7为图6中的下阀芯BB向剖视结构示意图。 [0021] FIG. 7 is a lower valve body 6 in the sectional view BB schematic structure.

具体实施方式[0022] 以下结合附图和具体的实施例对本发明的手自一体控压输注泵作进一步详细说明。 DETAILED DESCRIPTION [0022] The accompanying drawings and the following specific examples of manual pressure control infusion pump of the present invention will be described in further detail.

[0023] 实施例1 [0023] Example 1

[0024] 附图1所示的一种手自一体控压输注泵,包括硅胶球囊1、硅胶球囊I的两端分别设有进液口2和出液口3,进液口2与上输液管4相连接,出液口3与下输液管5相连接,进液口2内径大于出液口3的内径,进液口2与上输液管4之间设置有进液接头6,进液接头6内设置有一个上阀芯7,上阀芯7由上阀芯端部71和上阀芯阀体72组成,上阀芯端部71呈锥形,与上输液管4管口抵接配合;上阀芯阀体72周边开设有六道上阀芯液体通道8 ; A manual pressure control infusion pump [0024] FIG. 1 shows, including silicone balloon 1, both ends of the silicone balloon I were provided with inlet 2 and a liquid outlet 3, inlet 2 4 is connected to the infusion tube, the liquid outlet 3 is connected to the next infusion tube 5, the inlet diameter greater than 2 liquid outlet bores 3, inlet 2 and the infusion tube set between 4 has inlet header 6 , into the liquid inside the joint 6 is provided with an upper valve body 7, the valve body 7 by the upper ends of the spool 71 and the spool valve 72. The upper end portion of the valve body 71 is tapered, and the infusion tube 4 port abutting cooperation; on the spool valve 72 opened a six on the spool surrounding liquid channel 8;

[0025] 出液口3与下输液管5之间设置有出液接头9,出液接头9内设置有一个下阀芯10,下阀芯10轴心部位开设有下阀芯中心液体通道11,下阀芯10由下阀芯端部101和下阀芯阀体102组成,下阀芯端部101呈锥形,与出液口3管口抵接配合;下阀芯阀体102周边开设有六道下阀芯液体通道12 ;下阀芯阀体102与下输液管5之间设置有抵接弹簧13 ; [0025] 3 between the liquid outlet at the infusion tube 5 and is provided with a fluid connector 9, the fluid within the joint 9 is provided with a lower valve body 10, the axis of the valve body 10 at the site opened a center under the spool liquid passage 11 under the valve body 10 by the valve portion 101 and the lower spool valve body 102 composed of lower valve portion 101 is tapered, and a liquid outlet port abutting with 3; 102 surrounding the spool valve to open under There are six liquid passage 12 at the spool; spool valve 102 is provided between the lower and lower infusion tube 5 of the abutting spring 13;

[0026] 出液口3内设置有止回阀14 ;下阀芯端部101的顶端内径小于出液口3内径;出液接头9上设置有压力检测器15,压力检测器15的压力检测探头设置在出液接头9内壁上。 [0026] The fluid outlet 3 is provided with a check valve 14; the inner diameter at the top end portion of the valve body 101 is smaller than the inner diameter of the liquid outlet 3; a pressure sensor is provided with a fluid connector 15 on 9, the pressure sensor 15 detects the pressure Probe set in the inner wall of the fluid connector 9.

[0027] 使用本发明的手自一体控压输注泵正常自动输液时,由于重力作用,上阀芯7自然与上输液管4管口相脱离,上输液管4中的药液可从上阀芯阀体72周边的上阀芯液体通道8流入硅胶球囊I中;由于抵接弹簧13的作用,使得自动输液状态下下阀芯端部101处于与出液口3的管口相抵接状态,硅胶球囊I中的液体流经出液口3、下阀芯中心液体通道 [0027] The present invention tiptronic automatic pressure-controlled infusion pump infusion of normal, due to gravity, the valve body 7 and the natural infusion tube 4 is disengaged from the mouth, the liquid infusion tube 4 from the liquid passage on the spool 72 of the valve body surrounding the valve body 8 flows into the silicone balloon I; the abutment of the spring 13 so that the valve body at the end portion 101 is in the state of the automatic infusion of a liquid outlet orifice of abut 3 state, silicone balloon I liquid flow through the liquid outlet 3, under the spool center liquid passage

11、下输液管5后自动正常输送药液。 11, automatic transport of liquid under normal 5 after the infusion tube. 在需要加大灌注量或控制一定输注压力时,手动挤压硅胶球囊1,受硅胶球囊I中液体压力作用,上阀芯7上行,上阀芯端部71的顶端抵接上输液管4的管口,阻止了硅胶球囊I内的液体倒流;下阀芯10受出液口内液体压力作用下行,压缩抵接弹簧13收缩,下阀芯端部101与出液口3分离开,硅胶球囊I内的液体同时通过下阀芯中心液体通道11和下阀芯液体通道12下流,使得下输液管5中的液体液压和流量增加,即可实现加速、加量、加压输注液体的功能。 When you need to increase or control certain infusion perfusion pressure, manually squeezing silicone balloon 1 by the liquid silicone balloon I pressure on the spool 7 up, on top of the valve portion 71 is brought into connect infusion tube nozzle 4 to prevent the liquid silicone balloon back within I; lower valve body 10 by the liquid pressure within the liquid outlet downstream effects, contraction of the compression spring 13 abuts lower end portion of the valve body 101 and the separated liquid outlet 3 , liquid silicone balloon while I within the liquid passage through the lower center of the spool 11 and the lower liquid passage 12 downstream of the valve, so that the next infusion tube 5 and hydraulic fluid flow rate increases, you can achieve acceleration, increase the amount of pressure lost Note function liquid. 出液口3内设置有止回阀14,能有效防止下输液管5中液体倒流回硅胶球囊I ;出液接头9上设置的压力检测器15,压力检测器15的压力检测探头设置在出液接头9内壁上,能实时监测到出液接头9中液体的压力大小,从而可以实现对输注液体压力实时的控制,并可控制在恒定的压力条件下输注液体。 3 within the liquid outlet provided with a check valve 14, which can effectively prevent the infusion tube 5 backflow of liquid silicone balloon I; 9 provided on the hydraulic fittings pressure detector 15, a pressure sensor pressure sensing probe 15 is provided in 9 on the inner wall of the joint fluid, real-time monitoring to the fluid pressure of the liquid joint 9 in size, which can be achieved on the infusion fluid pressure in real-time control, and control infusion liquid under constant pressure conditions.

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Classifications
International ClassificationA61M5/175, A61M5/142
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