CN204500724U - A kind of can the remaining needle of Real-time Collection blood or administration - Google Patents
A kind of can the remaining needle of Real-time Collection blood or administration Download PDFInfo
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- CN204500724U CN204500724U CN201520168880.3U CN201520168880U CN204500724U CN 204500724 U CN204500724 U CN 204500724U CN 201520168880 U CN201520168880 U CN 201520168880U CN 204500724 U CN204500724 U CN 204500724U
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- 210000004369 blood Anatomy 0.000 title claims abstract description 51
- 239000008280 blood Substances 0.000 title claims abstract description 49
- 238000010241 blood sampling Methods 0.000 claims abstract description 15
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 10
- 238000011084 recovery Methods 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005070 sampling Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 239000003814 drug Substances 0.000 description 12
- 229940079593 drug Drugs 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 239000003146 anticoagulant agent Substances 0.000 description 5
- 229940127219 anticoagulant drug Drugs 0.000 description 5
- 230000017531 blood circulation Effects 0.000 description 4
- 210000004204 blood vessel Anatomy 0.000 description 4
- 238000001647 drug administration Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 230000023555 blood coagulation Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000010100 anticoagulation Effects 0.000 description 1
- 239000002473 artificial blood Substances 0.000 description 1
- 238000009534 blood test Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
技术领域 technical field
本实用新型涉及一种医疗器械，具体的说是一种可实时采集血液或给药的留置针。 The utility model relates to a medical device, specifically an indwelling needle that can collect blood or administer medicine in real time.
背景技术 Background technique
留置针现已成为医院护理工作中较常使用的一种医疗器械，具有减少对患者的穿刺次数，降低穿刺痛苦，减少医护人员工作量等优点。现有的留置针装置一般为单端穿刺入血，另一端为半闭合采血系统。半闭合系统在不采血时处于闭合状态，同时为防止凝血，在闭合端注入一定量抗凝血剂。在采血时，通过负压系统如注射器向外抽血，形成瞬时通路获得所需血液。同理，半闭合系统在不给药时也处于闭合状态；在给药时，通过正压系统如注射器向内注射形成瞬时通路给药。 Indwelling needles have become a more commonly used medical device in hospital nursing work. They have the advantages of reducing the number of punctures for patients, reducing the pain of punctures, and reducing the workload of medical staff. The existing indwelling needle device is generally single-end punctured into the blood, and the other end is a semi-closed blood collection system. The semi-closed system is in a closed state when no blood is collected, and a certain amount of anticoagulant is injected into the closed end to prevent coagulation. When blood is collected, the blood is drawn out through a negative pressure system such as a syringe to form a transient passage to obtain the required blood. Similarly, the semi-closed system is also in a closed state when no drug is administered; when drug is administered, it is injected into a positive pressure system such as a syringe to form a transient channel for drug administration.
现有留置针的普遍缺点是：1、半闭合系统中存在死体积，即现有留置针管腔中，在下次采血或给药操作时，始终会充斥前一步操作余留的血液及抗凝剂，这部分血液及抗凝剂会对下一步操作造成影响。尤其是测量血药浓度等指标时，当血药浓度上升期时，管腔死体积内的血液及抗凝剂会稀释下一时间点的血液，造成所测结果偏低；反之，则结果偏高。这种情况会导致所得结果与真实值偏离，影响药物综合评定结果。2、如果取样与时间相关，半闭合系统所采集的血液指标不能准确反应当时时间点实际血液指标情况。如果预先弃去死体积内血液，会使工作量加大，而且会浪费大量血液资源。 The general disadvantages of the existing indwelling needles are: 1. There is a dead volume in the semi-closed system, that is, the lumen of the existing indwelling needle will always be filled with the remaining blood and anticoagulation in the next blood collection or drug administration operation. Agent, this part of blood and anticoagulant will affect the next operation. Especially when measuring blood drug concentration and other indicators, when the blood drug concentration rises, the blood and anticoagulant in the dead volume of the lumen will dilute the blood at the next time point, resulting in a low measured result; otherwise, the result will be biased. high. This situation will lead to the deviation of the obtained results from the true value and affect the comprehensive evaluation results of the drug. 2. If the sampling is related to time, the blood indicators collected by the semi-closed system cannot accurately reflect the actual blood indicators at that time point. If the blood in the dead volume is discarded in advance, the workload will be increased, and a large amount of blood resources will be wasted.
实用新型内容 Utility model content
本实用新型目的是为解决上述技术问题的不足，提供一种可实时采集血液或给药的留置针，结构较简单，设计合理，能实现实时采集血液或给药，其操作简单，在采样与时间相关的情况下能达到最佳的采血或给药效果，提高检测数据的精准性。 The purpose of the utility model is to solve the deficiencies of the above-mentioned technical problems, and provide an indwelling needle capable of collecting blood or administering drugs in real time. In time-related cases, the best blood collection or administration effect can be achieved, and the accuracy of detection data can be improved.
本实用新型为解决上述技术问题所采用的技术方案是： 一种可实时采集血液或给药的留置针，包括留置针本体，设有两个通过延长管连接的留置针头，延长管上设有储血腔和蠕动泵；所述储血腔为弹性即时恢复装置，其上设有采血孔；采血孔上连接有自动采样器；所述蠕动泵通过电导线和电源连接，电导线上设有开关。 The technical scheme adopted by the utility model to solve the above-mentioned technical problems is: an indwelling needle capable of collecting blood or administering drugs in real time, including the indwelling needle body, and is provided with two indwelling needles connected by an extension tube, and the extension tube is provided with A blood storage chamber and a peristaltic pump; the blood storage chamber is an elastic instant recovery device, and a blood sampling hole is arranged on it; an automatic sampler is connected to the blood sampling hole; the peristaltic pump is connected to a power supply through an electric wire, and the electric wire is provided with switch.
所述采血孔为1个。 There is one blood sampling hole.
所述留置针头，包括钢针、针柄和导管；钢针的一端插入到可手持的针柄中，另一端包裹有软质导管。 The indwelling needle includes a steel needle, a needle handle and a catheter; one end of the steel needle is inserted into the hand-held needle handle, and the other end is wrapped with a soft catheter.
所述延长管上各设一个单手夹。 Each of the extension tubes is provided with a single-hand clamp.
有益效果是： The beneficial effects are:
本实用新型可实时采集血液或给药的留置针，结构设计合理，能实现实时采集血液或给药；且其操作简单，采样与时间相关的情况下能达到最佳的采血或给药效果，适于临床推广。本实用新型留置针设有两个留置针头，在需要采集样品时血液处理流动状态，解决了现有技术中的技术缺陷，即血药浓度上升期时，管腔死体积内的血液及抗凝剂会稀释下次所采集的血液，造成所测数据结果偏低；反之，则数据结果偏高，具有技术上的进步；有利于准确反应当时时间点血液指标实际情况；避免因弃去死体积而造成的工作量增加。 The utility model is an indwelling needle that can collect blood or administer medicine in real time, has a reasonable structural design, and can realize blood collection or administration in real time; and its operation is simple, and the best effect of blood collection or administration can be achieved when the sampling is related to time. Suitable for clinical promotion. The indwelling needle of the utility model is provided with two indwelling needles, and when the sample needs to be collected, the blood processing flow state solves the technical defect in the prior art, that is, when the blood drug concentration rises, the blood in the dead volume of the lumen and the anticoagulant The agent will dilute the blood collected next time, causing the measured data to be low; on the contrary, the data will be high, which has technical progress; it is conducive to accurately reflecting the actual situation of blood indicators at the time point; avoiding the dead volume caused by discarding resulting in increased workload.
附图说明 Description of drawings
图1是本实用新型能实现实时采集血液或给药的留置针的结构示意图； Fig. 1 is a schematic structural view of the indwelling needle capable of real-time blood collection or drug administration according to the present invention;
图中标记是：1、留置针头，11、针柄，12、钢针，13、导管，2、储血腔，21、采血孔，3、自动采样器，4、电源，41、电导线，42、开关，5、蠕动泵，6、延长管，61、单手夹。 The marks in the figure are: 1. indwelling needle, 11. needle handle, 12. steel needle, 13. catheter, 2. blood storage chamber, 21. blood collection hole, 3. automatic sampler, 4. power supply, 41. electric wire, 42, switch, 5, peristaltic pump, 6, extension tube, 61, one-hand clamp.
具体实施方式 Detailed ways
如图1所示，一种可实时采集血液或给药的留置针，包括留置针本体，设有两个通过延长管6连接的留置针头1，延长管6上设有储血腔2和蠕动泵5；所述储血腔2为弹性即时恢复装置，其上设有采血孔21；采血孔21上连接有自动采样器3；所述蠕动泵5通过电导线41和电源4连接，电导线41上设有开关42。 As shown in Figure 1, an indwelling needle that can collect blood or administer drugs in real time includes the indwelling needle body, and is provided with two indwelling needles 1 connected through an extension tube 6, and the extension tube 6 is provided with a blood storage chamber 2 and a peristaltic Pump 5; the blood storage chamber 2 is an elastic instant recovery device, on which a blood sampling hole 21 is arranged; the blood sampling hole 21 is connected with an automatic sampler 3; the peristaltic pump 5 is connected to the power supply 4 through an electric wire 41, and the electric wire 41 is provided with a switch 42 .
所述采血孔21为1个。 There is one blood sampling hole 21 .
所述留置针头，包括钢针12、针柄11和导管13；钢针12的一端插入到可手持的针柄11中，另一端包裹有软质导管13。 The indwelling needle includes a steel needle 12 , a needle handle 11 and a catheter 13 ; one end of the steel needle 12 is inserted into the hand-held needle handle 11 , and the other end is wrapped with a soft catheter 13 .
所述延长管6上各设一个单手夹61。 Each of the extension tubes 6 is provided with a single-hand clip 61 .
本实用新型能实现实时采集血液或给药的留置针，在使用过程时，手持针柄11，先将其中一端的留置针头1的钢针12在人体远心端逆血流方向刺入静脉血管内，出血后拔出钢针12使导管13留置于血管内，然后关闭此侧单手夹61；接着，将另一端的留置针头1在人体近心端顺血流方向刺入静脉血管内，出血后拔出钢针12使导管13留置于血管内，关闭此侧单手夹61。 The utility model can realize the indwelling needle for real-time blood collection or drug administration. During use, hold the needle handle 11, and firstly insert the steel needle 12 of the indwelling needle 1 at one end of the human body against the direction of blood flow into the venous vessel at the distal end of the human body. After bleeding, pull out the steel needle 12 to indwell the catheter 13 in the blood vessel, and then close the one-hand clamp 61 on this side; then, insert the indwelling needle 1 at the other end into the venous blood vessel along the direction of blood flow at the proximal end of the human body, After bleeding, the steel needle 12 is pulled out so that the catheter 13 is left in the blood vessel, and the one-hand clamp 61 on this side is closed.
待需要采血时，对储血腔2实施负压，打开两侧单手夹61，使延长管6和储血腔2内充满血液并排净管腔内空气，此时整个留置针装置内充满血液并形成一个血流通路。同时，为防止凝血，可在留置针装置管腔内注入少量抗凝血剂，蠕动泵5可进一步增强血流动力，此通路类似一个人造血管，可利用自动采样器3实施实时采血。待需要给药时，除去采血孔21所连接的自动采样器3，将输液瓶直接和采血孔21连接，打开其中一端延长管6上的单手夹61，开始输液。该留置针操作方便，有利于提高所采集血液检测结果的准确性。 When blood collection is required, negative pressure is applied to the blood storage chamber 2, and the one-hand clamps 61 on both sides are opened, so that the extension tube 6 and the blood storage chamber 2 are filled with blood and the air in the tube cavity is completely discharged. At this time, the entire indwelling needle device is filled with blood And form a blood flow path. At the same time, in order to prevent blood coagulation, a small amount of anticoagulant can be injected into the lumen of the indwelling needle device, and the peristaltic pump 5 can further enhance the blood flow. This passage is similar to an artificial blood vessel, and the automatic sampler 3 can be used for real-time blood sampling. When the drug needs to be administered, the automatic sampler 3 connected to the blood sampling hole 21 is removed, the infusion bottle is directly connected to the blood sampling hole 21, and the one-hand clamp 61 on one end extension tube 6 is opened to start the infusion. The indwelling needle is easy to operate and is beneficial to improving the accuracy of the collected blood test results.
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| CN201520168880.3U CN204500724U (en) | 2015-03-25 | 2015-03-25 | A kind of can the remaining needle of Real-time Collection blood or administration |
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| CN201520168880.3U CN204500724U (en) | 2015-03-25 | 2015-03-25 | A kind of can the remaining needle of Real-time Collection blood or administration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104688244A (en) * | 2015-03-25 | 2015-06-10 | 河南科技大学 | Indwelling needle set for collecting blood or administering drugs in real time |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104688244A (en) * | 2015-03-25 | 2015-06-10 | 河南科技大学 | Indwelling needle set for collecting blood or administering drugs in real time |
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Granted publication date: 20150729 Termination date: 20160325 |