CN102151343A - Portable infusion set - Google Patents

Abstract

Translated fromChinese

本发明提供一种便携式输液器，其特征在于，包括管体，管体的两端分别设有管盖和针座，管体的管腔中设有活塞，一活塞杆的一端与活塞固定，活塞杆的另一端伸出管盖，且活塞杆与管盖之间间隙配合，活塞与管盖之间设有一伸缩弹簧，该伸缩弹簧套设在活塞杆上，伸缩弹簧的弹力将活塞推向针座方向。本发明不但具有推动药液进入人体血液循环的功能，还具有容纳药液的功能，并且采用这种结构后，位于活塞与管盖之间的伸缩弹簧始终能够对管腔中的药液施加压力，输液器能够任意水平放置，即使输液器的水平高度低于病患者输液部位的水平高度，药液也能够在伸缩弹簧压力作用下被注入到人体血液循环中，因此使用更加方便、提高了输液的安全性。

The invention provides a portable infusion set, which is characterized in that it comprises a tube body, a tube cover and a needle seat are respectively provided at both ends of the tube body, a piston is arranged in the lumen of the tube body, and one end of a piston rod is fixed to the piston, The other end of the piston rod protrudes from the tube cover, and the gap between the piston rod and the tube cover is matched. A telescopic spring is arranged between the piston and the tube cover. The telescopic spring is sleeved on the piston rod, and the elastic force of the telescopic spring pushes the piston to the Seat direction. The present invention not only has the function of pushing the medicinal liquid into the blood circulation of the human body, but also has the function of containing the medicinal liquid, and after adopting this structure, the telescopic spring located between the piston and the tube cover can always exert pressure on the medicinal liquid in the tube cavity , the infusion set can be placed at any level, even if the level of the infusion set is lower than the level of the infusion site of the patient, the liquid medicine can be injected into the blood circulation of the human body under the pressure of the telescopic spring, so it is more convenient to use and improves the infusion efficiency. security.

Description

Translated fromChinese

便携式输液器Portable Infusion Set

技术领域technical field

本发明涉及医疗器械，尤其涉及一种便携式输液器。The invention relates to medical equipment, in particular to a portable infusion set.

背景技术Background technique

输液器用于对人体静脉滴入药液，使药液直接进入人体血液循环，现有的输液器由于需要克服一定的压力及防止空气通过输液器的输液管道进入人体血液循环造成空气栓塞而危及病患者的生命安全，因此需要将连接在输液器上的输液瓶倒置悬挂至一定高度，以保证输液瓶的水平高度高于病患者输液部位的水平高度，以使药液保持一定的压力，让输液瓶内的的空气控制在药液的上方，一方面，防止空气进入人体血液循环，另一方面，防止病患者体内血液倒流进输液器中，以保证药液在压力作用下顺利进入人体血液循环，从而安全有效的完成整个输液治疗过程。但是，现有的输液器在使用过程中存在以下缺点：首先，由于输液器必须与输液瓶配合使用，药液容纳在输液瓶中，输液器本身仅具有引导药液进入人体血液循环的功能，因此输液器的功能单一、使用不方便，虽然目前医疗器械中的注射器同时具有引导药液进入人体的功能和容纳药液的功能，但是注射器通常用于肌肉注射，注射器中的药液量较小，注射时间一般在一分钟内，注射器中的药液压力来源于医务人员人工推动注射器的活塞杆，但是输液通常是静脉点滴，点滴时间一般在几十分钟，因此不能将现有的这种注射器直接用于输液医疗中。其次，由于输液器必须与输液瓶配合使用，在输液过程中，输液瓶必须保持竖直悬挂，需要额外增加悬挂架，同时，输液瓶的水平高度必须高于病患者输液位置的水平高度，因此病患者在输液时不能方便的随意移动，特别是在灾害急救搬运、运输病患者的过程中，使用现有的输液器时需要借助额外的人手来保持输液瓶的高度位置和竖直位置，使用并不方便。The infusion set is used to instill medicinal liquid into the human vein, so that the medicinal liquid directly enters the blood circulation of the human body. The existing infusion set needs to overcome a certain pressure and prevent air from entering the blood circulation of the human body through the infusion tube of the infusion set, causing air embolism and endangering the patient. The patient's life is safe, so it is necessary to hang the infusion bottle connected to the infusion set upside down to a certain height, so as to ensure that the level of the infusion bottle is higher than the level of the patient's infusion site, so that the liquid medicine maintains a certain pressure and allows the infusion The air in the bottle is controlled above the liquid medicine. On the one hand, it prevents the air from entering the blood circulation of the human body. On the other hand, it prevents the patient's blood from flowing back into the infusion set, so as to ensure that the liquid medicine enters the blood circulation of the human body smoothly under the action of pressure. , so as to safely and effectively complete the entire infusion treatment process. However, the existing infusion set has the following disadvantages during use: first, because the infusion set must be used in conjunction with the infusion bottle, the medicinal liquid is contained in the infusion bottle, and the infusion set itself only has the function of guiding the medicinal liquid into the blood circulation of the human body. Therefore, the infusion set has a single function and is inconvenient to use. Although the syringe in the current medical device has the function of guiding the liquid medicine into the human body and containing the liquid medicine, the syringe is usually used for intramuscular injection, and the volume of the liquid medicine in the syringe is small. , the injection time is generally within one minute, and the pressure of the liquid medicine in the syringe comes from the medical personnel manually pushing the piston rod of the syringe, but the infusion is usually intravenous drip, and the drip time is generally tens of minutes, so the existing syringe cannot be used Directly used in infusion medicine. Secondly, because the infusion device must be used in conjunction with the infusion bottle, the infusion bottle must be kept vertically suspended during the infusion process, requiring an additional suspension frame. At the same time, the level of the infusion bottle must be higher than the level of the patient’s infusion position, so Patients cannot conveniently move freely during infusion, especially in the process of disaster emergency handling and transportation of patients, when using the existing infusion set, it is necessary to use extra manpower to maintain the height and vertical position of the infusion bottle. Not convenient.

发明内容Contents of the invention

本发明解决的技术问题是：提供一种便携式输液器，病患者在移动过程中能够方便的实现输液。The technical problem solved by the present invention is: to provide a portable infusion set, which can conveniently implement infusion for patients during the moving process.

本发明的技术方案是：一种便携式输液器，其特征在于，包括管体，管体的两端分别设有管盖和针座，管体的管腔中设有活塞，一活塞杆的一端与所述活塞固定，活塞杆的另一端伸出所述管盖，且活塞杆与管盖之间间隙配合，所述活塞与所述管盖之间设有一伸缩弹簧，该伸缩弹簧套设在所述活塞杆上，伸缩弹簧的弹力将活塞推向针座方向。管体的管腔中能够注入药液，使得本发明不但具有推动药液进入人体血液循环的功能，还具有容纳药液的功能，并且采用这种结构后，位于活塞与管盖之间的伸缩弹簧始终能够对管腔中的药液施加压力，输液器能够任意水平放置，即使输液器的水平高度低于病患者输液部位的水平高度，药液也能够在伸缩弹簧压力作用下被注入到人体血液循环中，因此使用更加方便、提高了输液的安全性。The technical scheme of the present invention is: a portable infusion set, which is characterized in that it includes a tube body, a tube cover and a needle seat are respectively provided at both ends of the tube body, a piston is arranged in the lumen of the tube body, and one end of a piston rod Fixed with the piston, the other end of the piston rod protrudes from the tube cover, and the gap between the piston rod and the tube cover is matched, and a telescopic spring is arranged between the piston and the tube cover, and the telescopic spring is sleeved on the On the piston rod, the elastic force of the telescopic spring pushes the piston toward the direction of the needle seat. The lumen of the tube body can be injected with liquid medicine, so that the present invention not only has the function of pushing the liquid medicine into the blood circulation of the human body, but also has the function of containing the liquid medicine. The spring can always exert pressure on the liquid medicine in the lumen, and the infusion set can be placed at any level, even if the level of the infusion set is lower than the level of the infusion site of the patient, the liquid medicine can be injected into the human body under the pressure of the stretch spring In the blood circulation, it is more convenient to use and improves the safety of infusion.

为了输液时，控制药液进入人体的速度和输液时间，所述针座上设有流量控制阀。In order to control the speed of liquid medicine entering the human body and the time of infusion during infusion, the needle seat is provided with a flow control valve.

管体、针座和凸台为一体成型。The tube body, the needle seat and the boss are integrally formed.

为了便于安装流量控制阀，所述针座上设有一凸台，所述流量控制阀设置在针座的凸台上。In order to facilitate the installation of the flow control valve, a boss is provided on the needle seat, and the flow control valve is arranged on the boss of the needle seat.

为了控制药液的输入总量，所述活塞杆上设有限位销孔，所述限位销孔中插有限位销柱，当限位销柱移动并贴到管盖的外端面时，活塞杆停止移动，从而阻止药液继续注入到人体中。In order to control the total amount of liquid medicine input, the piston rod is provided with a limit pin hole, and a limit pin is inserted in the limit pin hole. When the limit pin moves and sticks to the outer end surface of the tube cover, the piston The rod stops moving, thereby preventing further injection of the medicinal solution into the human body.

为了方便的往管体管腔中加注药液，所述管体上设有用于往管体的管腔中加注药液的加药装置，该加药装置包括固定在管体外侧壁的圆柱形基座，该圆柱形基座的中部设有加药孔，该加药孔与管体的管腔连通，加药孔中设有橡胶密封塞，圆柱形基座的端部设有端盖，所述橡胶密封塞遮盖在所述端盖中。In order to conveniently add liquid medicine to the lumen of the tube body, the tube body is provided with a dosing device for filling the lumen of the tube body with a medicine liquid. Cylindrical base, the middle part of the cylindrical base is provided with a dosing hole, the dosing hole communicates with the lumen of the tube body, a rubber sealing plug is provided in the dosing hole, and the end of the cylindrical base is provided with an end cover, and the rubber sealing plug is covered in the end cover.

为了活塞能够将管体管腔中的药液完全推入到人体中，所述伸缩弹簧的长度大于或等于所述管体的长度。In order that the piston can completely push the medical solution in the lumen of the tube body into the human body, the length of the telescopic spring is greater than or equal to the length of the tube body.

为了能够清楚的显示药液注入人体的剂量，所述管体的外侧壁、所述活塞杆上均设有容积刻度标识。In order to clearly display the dose of the medicinal liquid injected into the human body, volume scale marks are provided on the outer wall of the tube body and the piston rod.

所述针座上通过软管连接有输液针头。An infusion needle is connected to the needle seat through a hose.

本发明的有益效果是：本发明同时具有推动药液进入人体血液循环的功能和容纳药液的功能，病患者在移动过程中能够方便的实现输液，同时由于取消了配合现有输液器使用的输液瓶，不再需要借助额外的人手来保持输液瓶的高度位置和竖直位置，减少了人力、提高了输液的安全性。The beneficial effects of the present invention are: the present invention has the function of pushing the medicinal liquid into the blood circulation of the human body and the function of containing the medicinal liquid at the same time, and the patient can conveniently realize the infusion during the moving process, and at the same time, due to the cancellation of the existing infusion set used The infusion bottle no longer needs extra manpower to maintain the height and vertical position of the infusion bottle, which reduces manpower and improves the safety of infusion.

附图说明Description of drawings

图1为本发明的结构示意图。Fig. 1 is a structural schematic diagram of the present invention.

具体实施方式Detailed ways

下面结合附图和实施例对本发明作进一步说明：Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

参见图1，一种便携式输液器，包括管体1、管盖2、针座3、活塞4、活塞杆5、伸缩弹簧6、流量控制阀7、软管11、输液针头12和用于往管体的管腔中1a加注药液的加药装置。针座3设置在管体1的一端，管盖2通过螺纹连接的方式设置在管体1的另一端，活塞4设置在管体1的管腔1a中，活塞杆5的一端与活塞4固定，活塞杆5的另一端伸出管盖2，且活塞杆5与管盖2之间间隙配合，伸缩弹簧6设置在活塞4与管盖2之间，该伸缩弹簧6套设在活塞杆5上，伸缩弹簧6的弹力将活塞4推向针座3方向，本实施例中，伸缩弹簧6的长度大于管体1的长度，为了使得活塞4能够将管体管腔1a中的药液完全推入到人体中，伸缩弹簧6的长度还可以是等于管体1的长度。针座3上设有一凸台3a，流量控制阀7设置在针座3的凸台3a上。管体1、针座3和凸台3a为一体成型。活塞杆5上设有限位销孔5a，限位销孔5a中插有限位销柱。用于往管体的管腔中加注药液的加药装置设置在管体1上，该加药装置包括固定在管体1外侧壁的圆柱形基座8，该圆柱形基座8的中部设有加药孔8a，管体的管壁上开有一通孔，加药孔8a与管腔1a之间通过管体管壁上的通孔相互连通，加药孔8a中设有橡胶密封塞9，圆柱形基座8的端部设有端盖10，橡胶密封塞9遮盖在端盖10中。管体1的外侧壁、活塞杆5上均设有容积刻度标识。针座3上通过软管11连接有输液针头12。Referring to Fig. 1, a portable infusion set includes atube body 1, atube cover 2, aneedle seat 3, apiston 4, apiston rod 5, a telescopic spring 6, aflow control valve 7, a hose 11, aninfusion needle 12 and a A dosing device for filling the lumen of the tube body with liquid medicine 1a. Theneedle seat 3 is arranged at one end of thetube body 1, thetube cap 2 is set at the other end of thetube body 1 through threaded connection, thepiston 4 is set in the lumen 1a of thetube body 1, and one end of thepiston rod 5 is fixed to thepiston 4 , the other end of thepiston rod 5 protrudes from thecap 2, and the gap fit between thepiston rod 5 and thecap 2, the telescopic spring 6 is arranged between thepiston 4 and thecap 2, and the telescopic spring 6 is sleeved on thepiston rod 5 Above, the elastic force of the telescopic spring 6 pushes thepiston 4 toward the direction of theneedle hub 3. In this embodiment, the length of the telescopic spring 6 is greater than the length of thetube body 1. Pushed into the human body, the length of the telescopic spring 6 can also be equal to the length of thetube body 1 . Aboss 3 a is provided on theneedle seat 3 , and theflow control valve 7 is arranged on theboss 3 a of theneedle seat 3 . Thetube body 1, theneedle base 3 and theboss 3a are integrally formed. Thepiston rod 5 is provided with a limit pin hole 5a, and a limit pin post is inserted in the limit pin hole 5a. The dosing device for filling the lumen of the tube body with medicinal liquid is arranged on thetube body 1, and the dosing device includes acylindrical base 8 fixed on the outer wall of thetube body 1, thecylindrical base 8 There is adosing hole 8a in the middle, and a through hole is opened on the tube wall of the tube body. Thedosing hole 8a and the lumen 1a communicate with each other through the through hole on the tube wall of the tube body. A rubber seal is provided in thedosing hole 8a. Theplug 9 is provided with anend cap 10 at the end of thecylindrical base 8, and therubber sealing plug 9 is covered in theend cap 10. The outer wall of thepipe body 1 and thepiston rod 5 are provided with volume scale marks. Aninfusion needle 12 is connected to theneedle base 3 through a hose 11 .

Claims (10)

Translated fromChinese

1.一种便携式输液器，其特征在于：包括管体（1），管体（1）的两端分别设有管盖（2）和针座（3），管体（1）的管腔（1a）中设有活塞（4），一活塞杆（5）的一端与所述活塞（4）固定，活塞杆（5）的另一端伸出所述管盖（2），且活塞杆（5）与管盖（2）之间间隙配合，所述活塞（4）与所述管盖（2）之间设有一伸缩弹簧（6），该伸缩弹簧（6）套设在所述活塞杆（5）上，伸缩弹簧（6）的弹力将活塞（4）推向针座（3）方向。1. A portable infusion set, characterized in that it includes a tube body (1), the two ends of the tube body (1) are respectively provided with a tube cover (2) and a needle seat (3), and the lumen of the tube body (1) (1a) is provided with a piston (4), one end of a piston rod (5) is fixed to the piston (4), the other end of the piston rod (5) protrudes from the tube cover (2), and the piston rod ( 5) There is a clearance fit between the pipe cover (2), and a telescopic spring (6) is provided between the piston (4) and the pipe cover (2), and the telescopic spring (6) is sleeved on the piston rod (5), the elastic force of the telescopic spring (6) pushes the piston (4) towards the direction of the needle seat (3).2.按照权利要求1所述的便携式输液器，其特征在于：所述针座（3）上设有流量控制阀（7）。2. The portable infusion set according to claim 1, characterized in that: the needle seat (3) is provided with a flow control valve (7).3.按照权利要求2所述的便携式输液器，其特征在于：所述针座（3）上设有一凸台（3a），所述流量控制阀（7）设置在针座的凸台（3a）上。3. The portable infusion set according to claim 2, characterized in that: the needle seat (3) is provided with a boss (3a), and the flow control valve (7) is set on the boss (3a) of the needle seat )superior.4.按照权利要求3所述的便携式输液器，其特征在于：管体（1）、针座（3）和凸台（3a）为一体成型。4. The portable infusion set according to claim 3, characterized in that: the tube body (1), the needle seat (3) and the boss (3a) are integrally formed.5.按照权利要求1所述的便携式输液器，其特征在于：所述活塞杆（5）上设有限位销孔（5a）。5. The portable infusion set according to claim 1, characterized in that: the piston rod (5) is provided with a limit pin hole (5a).6.按照权利要求5所述的便携式输液器，其特征在于：所述限位销孔（5a）中插有限位销柱。6. The portable infusion set according to claim 5, characterized in that: a limit pin is inserted into the limit pin hole (5a).7.按照权利要求1所述的便携式输液器，其特征在于：所述管体（1）上设有用于往管体的管腔中加注药液的加药装置，该加药装置包括固定在管体（1）外侧壁的圆柱形基座（8），该圆柱形基座（8）的中部设有加药孔（8a），该加药孔（8a）与管体的管腔（1a）连通，加药孔（8a）中设有橡胶密封塞（9），圆柱形基座（8）的端部设有端盖（10），所述橡胶密封塞（9）遮盖在所述端盖（10）中。7. The portable infusion set according to claim 1, characterized in that: the tube body (1) is provided with a dosing device for filling the lumen of the tube body, the dosing device includes a fixed On the cylindrical base (8) on the outer wall of the tube body (1), the middle part of the cylindrical base (8) is provided with a dosing hole (8a), and the dosing hole (8a) is connected with the lumen of the tube body ( 1a) connected, the dosing hole (8a) is provided with a rubber sealing plug (9), and the end of the cylindrical base (8) is provided with an end cap (10), and the rubber sealing plug (9) covers the in the end cap (10).8.按照权利要求1所述的便携式输液器，其特征在于：所述伸缩弹簧（6）的长度大于或等于所述管体（1）的长度。8. The portable infusion set according to claim 1, characterized in that: the length of the telescopic spring (6) is greater than or equal to the length of the tube body (1).9.按照权利要求1所述的便携式输液器，其特征在于：所述管体（1）的外侧壁、所述活塞杆（5）上均设有容积刻度标识。9. The portable infusion set according to claim 1, characterized in that: the outer wall of the tube body (1) and the piston rod (5) are provided with volume scale marks.10.按照权利要求1所述的便携式输液器，其特征在于：所述针座（3）上通过软管（11）连接有输液针头（12）。10. The portable infusion set according to claim 1, characterized in that an infusion needle (12) is connected to the needle seat (3) through a hose (11).

Images