CN203915669U - Compound syringe - Google Patents

Compound syringe Download PDF

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Publication number
CN203915669U
CN203915669U CN201420342114.XU CN201420342114U CN203915669U CN 203915669 U CN203915669 U CN 203915669U CN 201420342114 U CN201420342114 U CN 201420342114U CN 203915669 U CN203915669 U CN 203915669U
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China
Prior art keywords
piston
chamber
steel needle
solution
needle
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Expired - Lifetime
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CN201420342114.XU
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Chinese (zh)
Inventor
马才
徐千贺
于飞飞
李小兵
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Shandong Weigao Group Medical Polymer Co Ltd
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Shandong Weigao Group Medical Polymer Co Ltd
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Abstract

本实用新型公开了复合型注射器,包括外套和套装在外套中的芯杆,所述芯杆前端连接有活塞B,其特征在于:活塞B与外套前端锥头间设有活塞A,活塞A与外套内壁形成容纳溶液的A腔室,活塞A、活塞B和外套内壁形成容纳溶液的B腔室,所述锥头内设有钢针,钢针针尖朝向活塞A。推注完A腔室的液体后,钢针贯穿活塞A可以继续推注B腔室中的液体,从而实现使用一支注射器顺序注射两种不同液体的目的。

The utility model discloses a composite syringe, which comprises a casing and a core rod set in the casing. The front end of the core rod is connected with a piston B. The inner wall of the jacket forms a chamber A for containing the solution, and the piston A, the piston B and the inner wall of the jacket form a chamber B for containing the solution. A steel needle is arranged in the cone head, and the needle point of the steel needle faces the piston A. After injecting the liquid in the A chamber, the steel needle penetrates the piston A to continue to inject the liquid in the B chamber, so as to achieve the purpose of sequentially injecting two different liquids with one syringe.

Description

复合型注射器compound syringe

技术领域 technical field

本实用新型涉及一种注射器,尤其涉及一次先后给两种不同的药物的复合型注射器。 The utility model relates to a syringe, in particular to a composite syringe for giving two different medicines in succession at one time.

背景技术 Background technique

静脉导管是一种常用的治疗装置,静脉导管的设置可以方便治疗,例如可以通过静脉导管将药物输入到人体内,而这些导管需要冲洗以便保持导管开放和完整,冲洗导管的流体,有注射盐水溶液,肝素等。而对于隔天输液的病患,仅用注射盐水溶液冲洗导管仍可能造成血液凝固,造成堵管,而如果使用肝素溶液冲封导管,可能使人体输注的肝素含量过高,产生不良影响,因此护理过程中最好使用注射盐水先对导管进行冲洗,然后再用肝素溶液封闭导管。如果采用上述操作,需要使用两根注射器,会使医护人员工作量加大,也在操作过程中增加了不必要的污染风险。 Intravenous catheters are a commonly used treatment device, the setting of intravenous catheters can facilitate treatment, for example, drugs can be infused into the human body through intravenous catheters, and these catheters need to be flushed to keep the catheter open and intact, the fluid for flushing the catheter, there is injection of saline Aqueous solution, heparin, etc. For patients who receive infusions the next day, just flushing the catheter with saline injection may still cause blood coagulation and blockage of the catheter, and if heparin solution is used to flush and seal the catheter, the heparin content infused into the human body may be too high, resulting in adverse effects. Therefore, it is best to flush the catheter with saline injection during the nursing process, and then seal the catheter with heparin solution. If the above operation is adopted, two syringes need to be used, which will increase the workload of the medical staff and increase unnecessary contamination risks during the operation.

发明内容 Contents of the invention

本实用新型的目的在于提供一种复合型注射器,该注射器可以实现两种不同注射溶液的顺次注射,用于冲洗、封闭静脉导管可提高效率、降低污染风险。 The purpose of the utility model is to provide a composite syringe, which can realize sequential injection of two different injection solutions, and can be used for flushing and sealing venous catheters to improve efficiency and reduce contamination risks.

本实用新型是这样实现的:一种复合型注射器,包括外套和套装在外套中的芯杆,所述芯杆前端连接有活塞B,活塞B与外套前端锥头间设有活塞A,活塞A与外套内壁形成容纳溶液的A腔室,活塞A、活塞B和外套内壁形成容纳溶液的B腔室,所述锥头内设有钢针,钢针针尖朝向活塞A。 The utility model is achieved in the following way: a composite syringe, comprising a casing and a core rod set in the casing, the front end of the core rod is connected with a piston B, and a piston A is arranged between the piston B and the cone head at the front end of the casing, and the piston A A chamber containing the solution is formed with the inner wall of the jacket, and the piston A, piston B and the inner wall of the jacket form the B chamber containing the solution. A steel needle is arranged in the cone head, and the needle point of the steel needle faces the piston A.

所述A腔室中封装有注射盐水溶液,B腔室中封装有肝素溶液。 Said injection saline solution is encapsulated in the chamber A, and heparin solution is encapsulated in the chamber B.

所述钢针的针孔开在针尖处,钢针根部设有小孔。 The pinhole of the steel needle is opened at the needle tip, and the root of the steel needle is provided with a small hole.

所述外套前端设有护帽。 The front end of the coat is provided with a protective cap.

本实用新型的有益效果是:同一注射器中可以封装两种不同液体,推注完A腔室的液体后,钢针贯穿活塞A可以继续推注B腔室中的液体,从而实现使用一支注射器顺序注射两种不同液体的目的。该注射器结构简单、使用方便,提高医护人员的效率、有效降低污染风险。 The beneficial effect of the utility model is that two different liquids can be packaged in the same syringe, and after injecting the liquid in the A chamber, the steel needle penetrates the piston A and can continue to inject the liquid in the B chamber, thereby realizing the use of one syringe The purpose of sequentially injecting two different liquids. The syringe has a simple structure and is convenient to use, improves the efficiency of medical staff, and effectively reduces the risk of contamination.

附图说明 Description of drawings

图1是本实用新型一次性复合型注射器的结构示意图; Fig. 1 is the structural representation of the utility model disposable composite syringe;

图2是钢针结构示意; Fig. 2 is a schematic view of the steel needle structure;

图3是推注完A腔室内液体时的示意图; Fig. 3 is a schematic diagram when the liquid in the chamber A is injected;

图4是钢针穿刺活塞A的局部放大图 Figure 4 is a partial enlarged view of steel needle puncture piston A

图中:1、护帽;2、钢针;3、A腔室;4、活塞A;5、B腔室;6、外套;7、活塞B;8、芯杆;9锥头;21、针孔;22小孔。 In the figure: 1, protective cap; 2, steel needle; 3, chamber A; 4, piston A; 5, chamber B; 6, jacket; 7, piston B; 8, core rod; 9 cone head; 21, Pinhole; 22 small holes.

具体实施方式 Detailed ways

由图1和图3可以看出,本实用新型复合型注射器,包括外套6和套装在外套6中的芯杆8,所述芯杆8前端连接有活塞B7,活塞B7与外套前端锥头9间设有活塞A4,活塞A4与外套6内壁形成容纳溶液的A腔室3,活塞A4、活塞B7和外套6内壁形成容纳溶液的B腔室5,所述锥头9内设有中空的钢针2,钢针2针尖朝向活塞A4。钢针的针孔21开在针尖处,钢针2根部设有小孔22。外套6前端设有护帽1。在使用本实用新型对静脉导管进行护理时,A腔室中封装有注射盐水溶液,B腔室中封装有肝素溶液。 It can be seen from Fig. 1 and Fig. 3 that the composite syringe of the present invention includes an outer casing 6 and a core rod 8 sleeved in the outer casing 6, the front end of the core rod 8 is connected with a piston B7, and the piston B7 is connected with the front end cone 9 of the outer casing. Piston A4 is arranged between, piston A4 and the inner wall of overcoat 6 form the A chamber 3 that holds solution, piston A4, piston B7 and the inner wall of overcoat 6 form B chamber 5 that holds solution, and described conical head 9 is provided with hollow steel Needle 2, the tip of steel needle 2 faces piston A4. The pinhole 21 of the steel needle is opened at the needle tip, and the steel needle 2 roots are provided with small holes 22 . The front end of the coat 6 is provided with a protective cap 1 . When using the utility model to nurse the venous catheter, the injection saline solution is packaged in the chamber A, and the heparin solution is packaged in the chamber B.

使用时,向锥头9方向推动芯杆8和活塞B7组成的整体时,活塞A在B腔室5内的溶液推力作用下也向锥头9方向推进,进而使A腔室3内液体在活塞A4的作用下向锥头方向移动并通过钢针孔21注射出,随着注射器内A腔室3内液体溶液的不断减少,当活塞A4移动到和钢针2针尖接触时,此时芯杆8和活塞B7组成的整体在外力的作用下继续向锥头方向推动B腔室5内液体,B腔室5内液体推动活塞A4向锥头9方向移动,由于钢针针尖很锋利,进而在力的作用下穿透活塞A4,当完全穿透后B腔室5内液体通过钢针2注射出。钢针2的顶端设有针孔21,在钢针上还设有几个小孔22,锋利的针尖易于穿刺,小孔易于剩余溶液的顺利注射。使用一个注射器注射两种液体减少了医护人员的工作量,也减少了在操作过程中不必要的细菌感染风险。 When in use, when the core rod 8 and the piston B7 are pushed toward the cone head 9 as a whole, the piston A is also pushed toward the cone head 9 under the thrust of the solution in the B chamber 5, so that the liquid in the A chamber 3 Under the action of the piston A4, it moves toward the cone head and injects it out through the steel needle hole 21. As the liquid solution in the chamber A 3 in the syringe decreases continuously, when the piston A4 moves to contact with the needle tip of the steel needle 2, the core The whole composed of the rod 8 and the piston B7 continues to push the liquid in the B chamber 5 to the direction of the cone head under the action of the external force, and the liquid in the B chamber 5 pushes the piston A4 to move to the direction of the cone head 9. Since the tip of the steel needle is very sharp, Under the action of force, the piston A4 is penetrated, and the liquid in the B chamber 5 is injected through the steel needle 2 when it is completely penetrated. The top of the steel needle 2 is provided with a pinhole 21, and several small holes 22 are arranged on the steel needle. The sharp needle point is easy to puncture, and the small holes are easy to inject the remaining solution smoothly. Using one syringe to inject two fluids reduces the workload of medical staff and also reduces the risk of unnecessary bacterial infection during the operation.

Claims (4)

1.复合型注射器,包括外套和套装在外套中的芯杆,所述芯杆前端连接有活塞B,其特征在于:活塞B与外套前端锥头间设有活塞A,活塞A与外套内壁形成容纳溶液的A腔室,活塞A、活塞B和外套内壁形成容纳溶液的B腔室,所述锥头内设有钢针,钢针针尖朝向活塞A。 1. Composite syringe, including a jacket and a core rod set in the jacket. The front end of the core rod is connected to a piston B. It is characterized in that: a piston A is arranged between the piston B and the cone head at the front end of the jacket, and the piston A forms a shape with the inner wall of the jacket. Chamber A for containing the solution, piston A, piston B and the inner wall of the jacket form a chamber B for containing the solution, a steel needle is arranged in the cone head, and the needle point of the steel needle faces the piston A. 2.根据权利要求1所述的复合型注射器,其特征在于:所述A腔室中封装有注射盐水溶液,B腔室中封装有肝素溶液。 2. The compound syringe according to claim 1, characterized in that: said chamber A is packed with saline solution for injection, and chamber B is packed with heparin solution. 3.根据权利要求1所述的复合型注射器,其特征在于:所述钢针的针孔开在针尖处,钢针根部设有小孔。 3. The composite syringe according to claim 1, characterized in that: the needle hole of the steel needle is opened at the needle tip, and a small hole is provided at the root of the steel needle. 4.根据权利要求1所述的复合型注射器,其特征在于:所述外套前端设有护帽。 4. The composite syringe according to claim 1, wherein a protective cap is provided at the front end of the casing.
CN201420342114.XU 2014-06-26 2014-06-26 Compound syringe Expired - Lifetime CN203915669U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104257496A (en) * 2014-10-21 2015-01-07 张西坤 Disposable heparin sodium normal saline tube-sealing fluid suit
CN104800952A (en) * 2015-04-23 2015-07-29 山东威高集团医用高分子制品股份有限公司 Pre-washing type washing tube injector
CN111372630A (en) * 2017-11-21 2020-07-03 赛诺菲 Container for at least a first injectable medicament and injection device
CN112533654A (en) * 2018-06-08 2021-03-19 科利登医疗系统公司 System and method for safety syringe
CN113413513A (en) * 2021-05-07 2021-09-21 任楚宇 Medical syringe with harmless treatment function

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104257496A (en) * 2014-10-21 2015-01-07 张西坤 Disposable heparin sodium normal saline tube-sealing fluid suit
CN104800952A (en) * 2015-04-23 2015-07-29 山东威高集团医用高分子制品股份有限公司 Pre-washing type washing tube injector
CN111372630A (en) * 2017-11-21 2020-07-03 赛诺菲 Container for at least a first injectable medicament and injection device
CN112533654A (en) * 2018-06-08 2021-03-19 科利登医疗系统公司 System and method for safety syringe
CN112533654B (en) * 2018-06-08 2022-12-06 科利登医疗系统公司 System and method for safety syringe
CN113413513A (en) * 2021-05-07 2021-09-21 任楚宇 Medical syringe with harmless treatment function

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Granted publication date: 20141105

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