CN205031273U - Prevent blood overflow blood taking needle - Google Patents
Prevent blood overflow blood taking needle Download PDFInfo
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- CN205031273U CN205031273U CN201520767107.9U CN201520767107U CN205031273U CN 205031273 U CN205031273 U CN 205031273U CN 201520767107 U CN201520767107 U CN 201520767107U CN 205031273 U CN205031273 U CN 205031273U
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- 239000008280 blood Substances 0.000 title claims abstract description 86
- 210000004369 blood Anatomy 0.000 title claims abstract description 84
- 239000007788 liquid Substances 0.000 claims description 6
- 230000001194 anti-hemostatic effect Effects 0.000 claims 1
- 230000037361 pathway Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 50
- 230000000903 blocking effect Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 3
- 239000002585 base Substances 0.000 description 23
- 238000001802 infusion Methods 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 230000009471 action Effects 0.000 description 5
- 230000017531 blood circulation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 208000035049 Blood-Borne Infections Diseases 0.000 description 2
- 239000003637 basic solution Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
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Abstract
本专利申请涉及医疗器械设备技术领域，具体涉及一种在采血过程中，更换接头时，防止血液流出的防血液溢流采血针。包括针杆，针杆的侧面设置有针柄，针杆的一端设有针头，针杆的另一端设有连接管并与连接管进口端接通，连接管的出口端设有针座并与针座的进口端接通，还包括穿刺针，穿刺针上设有接头，接头与针座的出口端卡接；针座内设有防止血液溢流的弹性封堵装置，接头的端部与弹性封堵装置接触并与针座的进口端接通。本实用新型能够通过接头与弹性封堵装置的配合，自动实现封堵和接通的功能，更换接头的工作只需要一个人即可完成工作，不会出现反折连接管封堵不彻底，仍有血液溢出的现象。
This patent application relates to the technical field of medical equipment, in particular to a blood collection needle that prevents blood from overflowing when the joint is replaced during the blood collection process. It includes a needle bar, the side of the needle bar is provided with a needle handle, one end of the needle bar is provided with a needle head, the other end of the needle bar is provided with a connecting pipe connected to the inlet end of the connecting pipe, and the outlet end of the connecting pipe is provided with a needle seat and connected to the The inlet end of the needle base is connected, and the puncture needle is also included. The puncture needle is provided with a joint, and the joint is clamped with the outlet end of the needle base; the needle base is provided with an elastic blocking device to prevent blood from overflowing, and the end of the joint is connected to the outlet end of the needle base. The elastic blocking device contacts and communicates with the inlet end of the needle seat. The utility model can automatically realize the function of sealing and connection through the cooperation of the joint and the elastic sealing device, and only one person is required to complete the work of replacing the joint, and there will be no incomplete sealing of the reflexed connecting pipe, and still There is blood spillage.
Description
技术领域 technical field
本实用新型涉及医疗器械设备技术领域，具体涉及一种在采血过程中，更换接头时，防止血液流出的防血液溢流采血针。 The utility model relates to the technical field of medical equipment, in particular to a blood collection needle for preventing blood from overflowing when a joint is replaced during the blood collection process.
背景技术 Background technique
采血针，一种在医疗检验过程中用于采集血样的采血针，由针头、针杆，针柄、连接管、针座组成，针头设在针杆的头部，在针杆上滑动连接有护套以保护针头，避免针头外露被污染或意外刺伤人体。采血针与真空采血管连接主要用于血液标本的采集与保存，真空采血管在生产过程中预置了一定量的负压，当采血针穿刺进入血管后，由于采血管内的负压作用，血液自动流入采血管内；具有安全、密闭，转运方便，头色不同，易于分辨等优点。 Blood collection needle, a kind of blood collection needle used for collecting blood samples in the medical examination process, is composed of a needle head, a needle shaft, a needle handle, a connecting tube, and a needle seat. The sheath is used to protect the needle and prevent the needle from being exposed to contamination or accidentally stabbing the human body. The connection between the blood collection needle and the vacuum blood collection tube is mainly used for the collection and preservation of blood samples. A certain amount of negative pressure is preset in the vacuum blood collection tube during the production process. When the blood collection needle punctures into the blood vessel, due to the negative pressure in the blood collection tube, the blood Automatically flow into the blood collection tube; it has the advantages of safety, airtightness, convenient transfer, different head colors, and easy identification.
临床上当病人需要进行抽血化验遇到采血试管无负压需更换空针抽血或采血后需进行输液治疗时，医务人员为了减少反复穿刺给患者造成的痛苦，本着节约患者血液的原则，工作中常采用直接更换针座处接头的方式进行护理操作。目前临床上采血针更换接头时，常采用反折连接管的方式，避免患者血液溢出，但实际操作中常显示出此方式的不足：1.护士一手反折一手接接头，操作不方便；2.还容易污染接头，造成患者血源性感染；3.反折不好还会直接导致溢血，使床单弄脏，增加工作量；4患者血液溢出，增加了医务人员职业暴露的机率，增大了医务工作者血源性感染的风险；5浪费患者的血液，增加患者的供血负担；6.若采用两个人来更换，又浪费医务人员劳动力。因此，有必要做出改进，以满足实际的操作需求。 Clinically, when a patient needs to draw blood for testing and encounters no negative pressure in the blood collection test tube and needs to replace the empty needle to draw blood or needs infusion treatment after blood collection, in order to reduce the pain caused by repeated punctures to the patient, the medical staff is based on the principle of saving the patient's blood. Nursing operations are often performed by directly replacing the connector at the needle hub during work. At present, when changing the joints of blood collection needles, the method of reflexively folding the connecting tube is often used to avoid the patient’s blood overflowing, but the actual operation often shows the shortcomings of this method: 1. The nurse folds back the connector with one hand and connects the connector with the other, which is inconvenient to operate; 2. It is also easy to contaminate the joints and cause blood-borne infections in patients; 3. Poor reflexion will directly lead to hemorrhage, making the sheets dirty and increasing the workload; The risk of blood-borne infection of medical workers; 5. Waste of blood of patients, increasing the burden of blood supply of patients; 6. If two people are used to replace, it will waste the labor of medical staff. Therefore, it is necessary to make improvements to meet the actual operational needs.
实用新型内容 Utility model content
本实用新型的目的在于提供防血液溢流采血针，以满足单人更换接头时，针座不会出现血液溢流的现象。 The purpose of the utility model is to provide a blood-overflow prevention blood collection needle, so that when a single person replaces the connector, the phenomenon of blood overflow will not occur in the needle seat.
为达到上述目的，本实用新型的基础技术方案是提供防血液溢流采血针。包括针杆，针杆的侧面设置有针柄，针杆的一端设有针头，针杆的另一端设有连接管并与连接管进口端接通，连接管的出口端设有针座并与针座的进口端接通，还包括穿刺针，穿刺针上设有接头，接头与针座的出口端卡接；针座内设有防止血液溢流的弹性封堵装置，接头的端部与弹性封堵装置接触并与针座的进口端接通。 In order to achieve the above object, the basic technical solution of the utility model is to provide a blood collection needle for preventing blood overflow. It includes a needle bar, the side of the needle bar is provided with a needle handle, one end of the needle bar is provided with a needle head, the other end of the needle bar is provided with a connecting pipe connected to the inlet end of the connecting pipe, and the outlet end of the connecting pipe is provided with a needle seat and connected to the The inlet end of the needle base is connected, and the puncture needle is also included. The puncture needle is provided with a joint, and the joint is clamped with the outlet end of the needle base; the needle base is provided with an elastic blocking device to prevent blood from overflowing, and the end of the joint is connected to the outlet end of the needle base. The elastic blocking device contacts and communicates with the inlet end of the needle seat.
上述技术方案中：针头、针杆、连接管、针座、接头、穿刺针顺次连通，其中针头、针杆、连接管、针座之间是固定连接，接头和穿刺针固定连接，针座与接头以卡接的方式拆卸连接。针座内设有防止血液溢流的弹性封堵装置，当接头与针座连接时，接头的端部与弹性封堵装置接触并与针座的进口端接通，即接头会顶开弹性封堵装置，使针座进口端与接头连通；当接头与针座拆开时，弹簧封堵件会恢复弹性，将针座封堵，避免血液从针座内溢出。采血时，将穿刺针接通血液收集管，再将接头与针座出口端连接，使接头的端部顶开弹性封堵装置，将接头与针座的进口端接通，然后将针头刺入患者体内，血液依次流过针头、针杆、连接管、针座、接头、穿刺针，再流入血液收集管内。更换接头时，拔出接头，弹性封堵装置在没有接头端部的作用力下会恢复至封堵状态，避免血液从针座的进口端流至针座的出口端，从而将针座封堵住，避免血液溢流。若更换接头后向患者输液时，将与输液瓶连通的接头再次连接在针座内，接头将弹性封堵装置顶开，再次将针座的进口端与接头接通，即可对患者进行输液。 In the above technical solution: the needle head, the needle bar, the connecting tube, the needle seat, the joint, and the puncture needle are connected in sequence, wherein the needle head, the needle bar, the connecting tube, and the needle seat are fixedly connected, and the joint and the puncture needle are fixedly connected, and the needle seat The connection with the connector is snapped off. There is an elastic sealing device inside the needle seat to prevent blood overflow. When the joint is connected to the needle seat, the end of the joint contacts with the elastic sealing device and connects with the inlet end of the needle seat, that is, the joint will open the elastic seal. The plugging device connects the inlet end of the needle seat with the joint; when the joint and the needle seat are disassembled, the spring sealing member will recover its elasticity to seal the needle seat and prevent blood from overflowing from the needle seat. When taking blood, connect the puncture needle to the blood collection tube, and then connect the connector to the outlet of the needle holder, make the end of the connector open the elastic sealing device, connect the connector to the inlet of the needle holder, and then pierce the needle into the In the patient's body, the blood flows sequentially through the needle, the needle shaft, the connecting tube, the needle seat, the joint, and the puncture needle, and then flows into the blood collection tube. When replacing the connector, pull out the connector, and the elastic sealing device will return to the sealing state without the force of the end of the connector, preventing blood from flowing from the inlet end of the needle hub to the outlet end of the needle hub, thereby sealing the needle hub Hold to avoid blood spillage. When infusing the patient after replacing the joint, connect the joint connected with the infusion bottle to the needle seat again, the joint pushes the elastic blocking device back, and connect the inlet end of the needle seat with the joint again, and the patient can be infused .
本实用新型在针座设置弹性封堵装置，接头与针座连接时，利用接头的端部顶开弹性封堵装置，自动将针座的进口端与接头接头，进行采血，更换时，拔出接头，弹簧封堵装置自动恢复弹力实现封堵作用，避免血液溢流，需再次进行采血或输液时，按照上述方式再此接通即可。本实用新型能够通过接头与弹性封堵装置的配合，自动实现封堵和接通的功能，与传统的用手反折连接管的方式相比，更换接头的工作只需要一手握住针座、一手握住接头就能完成，不需要边反折边连接，操作更为简单，只需要一个人即可完成工作，更换接头效率更高；与反折的方式相比，显然弹性封堵装置的密封效果更好，不会出现因反折损坏连接管，或反折封堵不彻底，仍有血液溢出的现象；常规状态下，弹性封堵装置将针座处进行封堵，能够避免细菌、灰尘等进入到连接管内，避免采血针受污染，能够提升采血针的安全系数；本设备结构简单，充分利用了接头，只需要在原有的采血针针座加入弹性封堵装置即可，成本较低，能同时满足各项采血、输液功能，适合在临床医护中推广使用。 The utility model is equipped with an elastic sealing device on the needle base. When the joint is connected with the needle base, the end of the joint is used to push the elastic sealing device, and the inlet end of the needle base is automatically connected with the joint for blood collection. When replacing, pull out The joint and the spring blocking device automatically restore the elastic force to realize the blocking effect and avoid blood overflow. When blood collection or infusion needs to be performed again, it can be connected again according to the above method. The utility model can automatically realize the functions of sealing and connecting through the cooperation of the joint and the elastic sealing device. Compared with the traditional way of folding the connecting pipe by hand, the work of replacing the joint only needs to hold the needle holder with one hand, It can be completed by holding the joint with one hand, and there is no need to fold back and connect, the operation is simpler, and only one person is required to complete the work, and the replacement of the joint is more efficient; The sealing effect is better, and there will be no damage to the connecting tube due to reflexion, or the phenomenon of blood overflow due to incomplete reflexion sealing; under normal conditions, the elastic sealing device seals the needle seat, which can avoid bacteria, Dust, etc. enter into the connecting pipe, avoiding the contamination of the blood collection needle, which can improve the safety factor of the blood collection needle; the structure of this device is simple, and the joint is fully utilized. It only needs to add an elastic sealing device to the original blood collection needle seat, and the cost is relatively low. Low, can meet various functions of blood collection and infusion at the same time, suitable for promotion and use in clinical care.
对基础方案的改进得到的优选方案1：所述弹性封堵装置包括设于针座内的封堵橡胶，封堵橡胶中心设有常闭的阀瓣，接头的端部与封堵橡胶中心接触并与底座的进口端接通。以封堵橡胶作为封堵，因橡胶本身的密封效果好，且具有一定的弹性，在此处是非常适合的，封堵橡胶中心设有常闭的阀瓣，当接头未与针座连接时，阀瓣关闭，将针座封堵，接头连接后，接头端部会顶开阀瓣，使接头与针座进口端接通进行采血或者输液。 The preferred solution 1 obtained by improving the basic solution: the elastic sealing device includes sealing rubber arranged in the needle seat, the center of the sealing rubber is provided with a normally closed valve disc, and the end of the joint is in contact with the center of the sealing rubber And connected with the inlet port of the base. The sealing rubber is used as the sealing, because the rubber itself has a good sealing effect and has a certain degree of elasticity, so it is very suitable here. The center of the sealing rubber is equipped with a normally closed valve disc. When the joint is not connected with the needle seat , the valve clack is closed, and the needle seat is blocked. After the joint is connected, the end of the joint will open the valve clack, so that the joint is connected with the inlet end of the needle seat for blood collection or infusion.
对优选方案1的改进得到的优选方案2：所述封堵橡胶呈锥形，阀瓣设于封堵橡胶的顶点处，封堵橡胶的顶点靠近针座的进口端，封堵橡胶的底部靠近针座的出口端并与针座内壁连接。将接头与针座的出口端连接时，接头的端部会套设在封堵橡胶内，接头的端部会顶住封堵橡胶的顶点的一端，使顶点处的阀瓣打开，拔出接头后，阀瓣在弹力作用下恢复，将针座再次封堵，避免血液溢出。锥形的封堵橡胶在生产中较为方便，结构简单，非常实用。 The preferred solution 2 obtained by improving the preferred solution 1: the sealing rubber is conical, the valve flap is set at the apex of the sealing rubber, the apex of the sealing rubber is close to the inlet end of the needle seat, and the bottom of the sealing rubber is close to The outlet end of the needle seat is connected with the inner wall of the needle seat. When the joint is connected to the outlet end of the needle seat, the end of the joint will be sleeved in the sealing rubber, and the end of the joint will withstand the top end of the sealing rubber, so that the valve flap at the top is opened. After pulling out the joint, The valve clack recovers under the action of elastic force, and seals the needle seat again to prevent blood from overflowing. The tapered sealing rubber is more convenient in production, simple in structure and very practical.
对优选方案1的改进得到的优选方案3：所述封堵橡胶为圆盘形，阀瓣设于封堵橡胶的中心处，封堵橡胶的圆弧面与针座内壁连接；采用盘形的封堵橡胶将针座封堵，接头与针座连接时，接头与封堵橡胶的中心接触时，会将封堵橡胶的中心向针座的进口端顶开，从而使阀瓣打开，将接头和针座的进口端接通，拔出接头后，阀瓣在弹力作用下恢复，将针座再次封堵，避免血液溢出。盘形的封堵橡胶结构简单，安装方便，实用性强。 The preferred solution 3 obtained by improving the preferred solution 1: the sealing rubber is disc-shaped, the valve disc is set at the center of the sealing rubber, and the arc surface of the sealing rubber is connected with the inner wall of the needle seat; the disc-shaped The sealing rubber seals the needle seat. When the joint is connected with the needle seat, when the joint contacts with the center of the sealing rubber, the center of the sealing rubber will be pushed away to the inlet end of the needle seat, so that the valve disc will open and the joint will be closed. It is connected with the inlet end of the needle seat, and after the joint is pulled out, the valve flap recovers under the action of elastic force, and the needle seat is blocked again to prevent blood from overflowing. The disc-shaped sealing rubber has simple structure, convenient installation and strong practicability.
对基础方案的进一步优化得到的优选方案4：所述弹性封堵装置包括设于针座出口端的堵头，堵头上设置有导向杆，导向杆与针座的进口端滑动连接，导向杆上还套设有复位弹簧；针座的进口端截面大于出口端截面，接头与堵头接触后留有进液通道。连接接头和针座时，接头会推动堵头，导向杆与针座的进口端滑动连接，堵头会随着导向杆一起向针座进口端移动，此时，堵头会压缩复位弹簧，连接好后接头与堵头接触后留有进液通道，作为采血或输液通道，拔出接头后，堵头会在复位弹簧的作用下再次将针座的出口端封堵。针座的进口端截面大于出口端截面，能够保证堵头由针座的出口端移动至针座内后，针座的进口端与出口端间留有液体通道。 The preferred solution 4 obtained by further optimizing the basic solution: the elastic blocking device includes a plug arranged at the outlet end of the needle hub, a guide rod is arranged on the plug, and the guide rod is slidingly connected with the inlet end of the needle hub. A return spring is also sleeved; the cross section of the inlet end of the needle seat is larger than the cross section of the outlet end, and a liquid inlet channel is left after the joint is in contact with the plug. When connecting the joint and the needle seat, the joint will push the plug, and the guide rod is slidingly connected with the inlet end of the needle seat, and the plug will move to the inlet end of the needle seat together with the guide rod. After the joint is in contact with the plug, there is a liquid inlet channel as a blood collection or infusion channel. After the joint is pulled out, the plug will block the outlet end of the needle holder again under the action of the return spring. The cross-section of the inlet end of the needle holder is larger than the cross-section of the outlet end, which can ensure that after the plug moves from the outlet end of the needle holder to the inside of the needle holder, a liquid channel remains between the inlet end and the outlet end of the needle holder.
对优选方案4的进一步优化得到的优选方案5：所述堵头与接头接触的面为接触面，所述接触面与接头的端部所在的平面相交；当两平面相交时，接头端部与堵头接触时，堵头与接头的端会产生缝隙，作为进液通道。 The preferred option 5 obtained by further optimization of the preferred option 4: the contact surface between the plug and the joint is a contact surface, and the contact surface intersects the plane where the end of the joint is located; when the two planes intersect, the end of the joint and the When the plug contacts, there will be a gap between the plug and the end of the joint as a liquid inlet channel.
附图说明 Description of drawings
图1是本实用新型防血液溢流采血针实施例1的结构示意图； Fig. 1 is a schematic structural view of Embodiment 1 of the blood overflow prevention blood collection needle of the present invention;
图2是图1中接头与针座连接处的结构示意图； Fig. 2 is a schematic structural view of the connection between the connector and the needle hub in Fig. 1;
图3是实施例1中锥形的封堵橡胶的结构示意图； Fig. 3 is the structural representation of the conical plugging rubber in embodiment 1;
图4是本实用新型防血液溢流采血针实施例2接头与针座连接处的结构示意图； Fig. 4 is a structural schematic diagram of the connection between the joint and the needle seat of Example 2 of the anti-blood overflow blood collection needle of the present invention;
图5是实施例2中盘形的封堵橡胶的结构示意图； Fig. 5 is the structural representation of disc-shaped plugging rubber in embodiment 2;
图6是本实用新型防血液溢流采血针实施例3中接头与针座连接处的结构示意图。 Fig. 6 is a schematic structural view of the connection between the joint and the needle seat in Embodiment 3 of the anti-blood overflow blood collection needle of the present invention.
具体实施方式 detailed description
下面通过具体实施方式对本实用新型作进一步详细的说明： The utility model is described in further detail below by means of specific embodiments:
说明书附图中的附图标记包括：针头1、针柄2、连接管3、针座4、接头5、穿刺针6、针杆7、封堵橡胶8、堵头9、复位弹簧10、导向杆11。 The reference signs in the drawings of the description include: needle head 1, needle handle 2, connecting tube 3, needle seat 4, joint 5, puncture needle 6, needle bar 7, sealing rubber 8, plug 9, return spring 10, guide pole 11.
实施例1：如图1所示，包括针杆7，针杆7的侧面设置有针柄2，针杆7的左端安装有针头1，针头1上套有保护套，避免扎伤医护人员，针杆7的右端与连接管3进口端接通，连接管3的出口端与针座4的进口端接通，穿刺针6上设置有接头5，接头5与针座4的出口端卡接在一起；如图2、图3所示，针座4内安装有锥形的封堵橡胶8，封堵橡胶8的顶点处设置有常闭合的阀瓣，封堵橡胶8的顶点靠近针座4的进口端，封堵橡胶8的底部靠近针座4的出口端并与针座4内壁固定连接。采血时，将穿刺针6接通血液收集管，将接头5的端部插入针座4，并与针座4的出口端连接，此时接头5的端部会套设在封堵橡胶8内，接头5的端部会向左顶住封堵橡胶8的顶点，顶点处的阀瓣在受力后自动打开，此时接头5与针座4的进口端便接通了；然后将针头1刺入患者体内，血液依次流过针头1、针杆7、连接管3、针座4、接头5、穿刺针6，再流入血液收集管内。更换接头5时，将接头5从针座4内拔出，拔出接头5后，阀瓣在弹力作用下恢复，将针座4再次封堵，避免血液溢出；再将需换上的新接头5再次与针座4连接上，新接头5与针座4进口端接通后，即可进行输液或者再次采血了。 Embodiment 1: As shown in Figure 1, it includes a needle bar 7, the side of the needle bar 7 is provided with a needle handle 2, the left end of the needle bar 7 is equipped with a needle head 1, and the needle head 1 is covered with a protective cover to avoid hurting medical personnel. The right end of the needle bar 7 is connected to the inlet end of the connecting tube 3, the outlet end of the connecting tube 3 is connected to the inlet end of the needle hub 4, and the puncture needle 6 is provided with a joint 5, which is clamped with the outlet end of the needle hub 4 together; as shown in Figure 2 and Figure 3, a conical sealing rubber 8 is installed in the needle seat 4, and a normally closed valve disc is arranged at the apex of the sealing rubber 8, and the apex of the sealing rubber 8 is close to the needle seat 4, the bottom of the sealing rubber 8 is close to the outlet end of the needle holder 4 and is fixedly connected with the inner wall of the needle holder 4. When taking blood, connect the puncture needle 6 to the blood collection tube, insert the end of the joint 5 into the needle base 4, and connect it to the outlet end of the needle base 4, at this time, the end of the joint 5 will be sleeved in the sealing rubber 8, The end of the joint 5 will withstand the apex of the sealing rubber 8 to the left, and the valve disc at the apex will automatically open after being stressed, and at this time the joint 5 and the inlet port of the needle seat 4 will be connected; then the needle 1 will be inserted into the In the patient's body, the blood flows through the needle head 1, the needle rod 7, the connecting tube 3, the needle seat 4, the joint 5, and the puncture needle 6 in sequence, and then flows into the blood collection tube. When replacing the joint 5, pull out the joint 5 from the needle seat 4. After the joint 5 is pulled out, the valve disc will recover under the action of the elastic force, and the needle seat 4 will be blocked again to avoid blood overflow; then replace the new joint 5 is connected with the needle base 4 again, and after the new connector 5 is connected with the inlet end of the needle base 4, the infusion or blood collection can be performed again.
实施例2：如图1、图4、图5所示，包括针杆7，针杆7的侧面设置有针柄2，针杆7的左端安装有针头1，针头1上套有保护套，避免扎伤医护人员，针杆7的右端与连接管3进口端接通，连接管3的出口端与针座4的进口端接通，穿刺针6上设置有接头5，接头5与针座4的出口端卡接在一起；针座4内安装有圆盘形的封堵橡胶8，封堵橡胶8的中心处设置有常闭的阀瓣，封堵橡胶8的圆弧面与针座4内壁固定连接。采血时，将穿刺针6接通血液收集管，将接头5的端部插入针座4，并与针座4的出口端连接，此时接头5的端部会向左顶封堵橡胶8的中心处，中心处的阀瓣在受力后自动打开，此时接头5与针座4的进口端便接通了；然后将针头1刺入患者体内，血液依次流过针头1、针杆7、连接管3、针座4、接头5、穿刺针6，再流入血液收集管内。更换接头5时，将接头5从针座4内拔出，拔出接头5后，阀瓣在弹力作用下恢复，将针座4再次封堵，避免血液溢出；再将需换上的新接头5再次与针座4连接上，新接头5与针座4进口端接通后，即可进行输液或者再次采血了。 Embodiment 2: as shown in Fig. 1, Fig. 4, Fig. 5, comprise needle bar 7, the side of needle bar 7 is provided with needle handle 2, the left end of needle bar 7 is equipped with needle head 1, is covered with protective cover on needle head 1, To avoid stabbing medical personnel, the right end of the needle bar 7 is connected to the inlet end of the connecting tube 3, the outlet end of the connecting tube 3 is connected to the inlet end of the needle hub 4, and the puncture needle 6 is provided with a joint 5, which is connected to the needle hub 4. The outlet ends of 4 are clamped together; a disc-shaped sealing rubber 8 is installed in the needle seat 4, and a normally closed valve disc is arranged at the center of the sealing rubber 8, and the arc surface of the sealing rubber 8 and the needle seat 4 The inner wall is fixedly connected. When taking blood, connect the puncture needle 6 to the blood collection tube, insert the end of the joint 5 into the needle base 4, and connect it to the outlet end of the needle base 4, at this time, the end of the joint 5 will block the center of the rubber 8 to the left At the center, the valve disc at the center opens automatically after being stressed, and at this time the joint 5 and the inlet end of the needle seat 4 are connected; then the needle 1 is inserted into the patient's body, and the blood flows through the needle 1, needle rod 7, The connecting tube 3, the needle seat 4, the joint 5, and the puncture needle 6 flow into the blood collection tube. When replacing the joint 5, pull out the joint 5 from the needle seat 4. After the joint 5 is pulled out, the valve disc will recover under the action of the elastic force, and the needle seat 4 will be blocked again to avoid blood overflow; then replace the new joint 5 is connected with the needle base 4 again, and after the new connector 5 is connected with the inlet end of the needle base 4, the infusion or blood collection can be performed again.
实施例3：如图1所示，包括针杆7，针杆7的侧面设置有针柄2，针杆7的左端安装有针头1，针头1上套有保护套，避免扎伤医护人员，针杆7的右端与连接管3进口端接通，连接管3的出口端与针座4的进口端接通，穿刺针6上设置有接头5，接头5与针座4的出口端卡接在一起；如图6所示，针座4的出口端安装堵头9，堵头9上安装有导向杆11，导向杆11滑动连接在针座4的进口端上，导向杆11上还套设有复位弹簧10；针座4的进口端横截面大于出口端的横截面，以保证堵头9向左移动后针座4的进口端与出口端能连通，堵头9与接头5接触的面为接触面即图中堵头9右边的端面，接触面与接头5的端部所在的平面相交，可以保证接头5顶住堵头9时，堵头9右边的端面与接头5之间流有进液的缝隙。采血时，将穿刺针6接通血液收集管，将接头5的端部插入针座4，并与针座4的出口端连接，接头5在插入针座4的过程中，接头5的端部会向左顶堵头9，使堵头9向左移动并压缩复位弹簧10，堵头9移动至针座4横截面较大的地方时，接头5与针座4的进口端便接通了；然后将针头1刺入患者体内，血液依次流过针头1、针杆7、连接管3、针座4、接头5、穿刺针6，再流入血液收集管内。更换接头5时，将接头5从针座4内拔出，拔出接头5后，堵头9在复位弹簧10的弹力作用下恢复向右移动，将针座4再次封堵，避免血液溢出；再将需换上的新接头5再次与针座4连接上，新接头5与针座4进口端接通后，即可进行输液或者再次采血了。 Embodiment 3: As shown in Figure 1, it includes a needle bar 7, a needle handle 2 is arranged on the side of the needle bar 7, a needle head 1 is installed on the left end of the needle bar 7, and a protective cover is set on the needle head 1, so as to avoid hurting medical staff, The right end of the needle bar 7 is connected to the inlet end of the connecting tube 3, the outlet end of the connecting tube 3 is connected to the inlet end of the needle hub 4, and the puncture needle 6 is provided with a joint 5, which is clamped with the outlet end of the needle hub 4 together; as shown in Figure 6, a plug 9 is installed on the outlet end of the needle hub 4, and a guide rod 11 is installed on the plug 9, and the guide rod 11 is slidably connected to the inlet end of the needle hub 4, and the guide rod 11 is also set A return spring 10 is provided; the cross-section of the inlet end of the needle base 4 is larger than the cross-section of the outlet end, so as to ensure that the inlet end and the outlet end of the needle base 4 can be connected after the plug 9 moves to the left, and the contact surface of the plug 9 and the joint 5 The contact surface is the end surface on the right side of the plug 9 in the figure, and the contact surface intersects with the plane where the end of the joint 5 is located, which can ensure that when the joint 5 withstands the plug 9, there will be a flow between the end surface on the right side of the plug 9 and the joint 5. Liquid entry gap. When taking blood, connect the puncture needle 6 to the blood collection tube, insert the end of the joint 5 into the needle base 4, and connect it to the outlet end of the needle base 4. When the joint 5 is inserted into the needle base 4, the end of the joint 5 will Push the plug 9 to the left to move the plug 9 to the left and compress the return spring 10. When the plug 9 moves to the place where the cross section of the needle holder 4 is larger, the joint 5 and the inlet end of the needle holder 4 are connected; Then the needle 1 is inserted into the body of the patient, and the blood flows through the needle 1, the needle shaft 7, the connecting tube 3, the needle seat 4, the connector 5, and the puncture needle 6 in turn, and then flows into the blood collection tube. When replacing the connector 5, the connector 5 is pulled out from the needle holder 4. After the connector 5 is pulled out, the plug 9 resumes moving to the right under the elastic force of the return spring 10, and the needle holder 4 is blocked again to avoid blood overflow; Then the new joint 5 to be replaced is connected with the needle base 4 again, and after the new joint 5 is connected with the inlet end of the needle base 4, the infusion or blood collection can be carried out again.
以上所述的仅是本实用新型的实施例，方案中公知的具体结构和/或特性等常识在此未作过多描述。应当指出，对于本领域的技术人员来说，在不脱离本实用新型结构的前提下，还可以作出若干变形和改进，这些也应该视为本实用新型的保护范围，这些都不会影响本实用新型实施的效果和专利的实用性。本申请要求的保护范围应当以其权利要求的内容为准，说明书中的具体实施方式等记载可以用于解释权利要求的内容。 What is described above is only the embodiment of the present utility model, and common knowledge such as the specific structure and/or characteristic known in the solution is not described too much here. It should be pointed out that for those skilled in the art, under the premise of not departing from the structure of the utility model, some deformations and improvements can also be made, and these should also be regarded as the protection scope of the utility model, and these will not affect the utility model. Effects of novel implementations and utility of patents. The scope of protection required by this application shall be based on the content of the claims, and the specific implementation methods and other records in the specification may be used to interpret the content of the claims.
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| CN201520767107.9U CN205031273U (en) | 2015-09-30 | 2015-09-30 | Prevent blood overflow blood taking needle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109010041A (en) * | 2018-08-22 | 2018-12-18 | 中国人民解放军陆军军医大学第三附属医院（野战外科研究所） | A kind of anti-punctured blood bag assembly |
| CN112401826A (en) * | 2020-09-06 | 2021-02-26 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Suction kit for arthroscopic surgery |
| CN113171092A (en) * | 2021-05-14 | 2021-07-27 | 江苏崇恒医疗科技有限公司 | Artery blood sample collector capable of being plugged quickly |
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2015
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109010041A (en) * | 2018-08-22 | 2018-12-18 | 中国人民解放军陆军军医大学第三附属医院（野战外科研究所） | A kind of anti-punctured blood bag assembly |
| CN109010041B (en) * | 2018-08-22 | 2020-11-27 | 中国人民解放军陆军军医大学第三附属医院（野战外科研究所） | Prevent puncturing blood bag subassembly |
| CN112401826A (en) * | 2020-09-06 | 2021-02-26 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Suction kit for arthroscopic surgery |
| CN113171092A (en) * | 2021-05-14 | 2021-07-27 | 江苏崇恒医疗科技有限公司 | Artery blood sample collector capable of being plugged quickly |
| CN113171092B (en) * | 2021-05-14 | 2023-02-07 | 江苏崇恒医疗科技有限公司 | Artery blood sample collector capable of being plugged quickly |
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