技术领域technical field
本实用新型涉及医护领域，尤其涉及医疗器械，具体涉及一种微量血气采血器。The utility model relates to the field of medical care, in particular to a medical device, in particular to a trace blood gas blood sampling device.
背景技术Background technique
血气酸碱分析是检测血液中所存在的气体，它是反映呼吸生理功能的一个重要指标。目前部分血气已将电解质(NA、K、CL、CA)和部分生化项目检测组合在一起检测。血气标本以采集桡动脉、前臂动脉、股动脉为主，因为只有动脉血才能正确反映呼吸生理功能。Blood gas acid-base analysis is to detect the gases existing in the blood, and it is an important indicator reflecting the physiological function of breathing. At present, some blood gases have been tested by combining electrolytes (NA, K, CL, CA) and some biochemical items. Blood gas samples are mainly collected from the radial artery, forearm artery, and femoral artery, because only arterial blood can correctly reflect the respiratory physiological function.
目前，国内血气标本的采集主要有二种方式：一次性注射器和血气采血器(血气针)。其中利用一次性注射器采集血气标本容易出现以下问题：At present, there are mainly two methods for collecting blood gas samples in China: disposable syringes and blood gas blood collection devices (blood gas needles). The use of disposable syringes to collect blood gas samples is prone to the following problems:
1.难易程度：注射器采集动脉血时操作人员双手操作凭经验是否扎到动脉血管，当操作人员凭经验扎到动脉管时，另一只手开始抽血，如操作不当易将动脉管刺穿或抽到静脉血，采集老人和小孩非常困难。1. Difficulty: When the syringe collects arterial blood, the operator uses both hands to see if the arterial vessel is punctured according to experience. When the operator punctures the arterial vessel based on experience, the other hand starts to draw blood. It is very difficult to collect old people and children if they wear or draw venous blood.
2.病人隐私：注射器采血量较大(1.5-2ml)，主要以股动脉为主(大腿根部动脉管)。2. Patient privacy: The amount of blood collected by the syringe is relatively large (1.5-2ml), mainly from the femoral artery (artery at the root of the thigh).
3.痛疼感：痛疼感主要由针头的粗细和采血时间长短决定，注射器一般选择针头0.65-0.8之间，采血量在(1.5-2ml)采血时间在10-15秒左右。3. Pain: The pain is mainly determined by the thickness of the needle and the length of the blood collection time. Generally, the needle of the syringe is between 0.65-0.8, and the blood collection volume is (1.5-2ml) and the blood collection time is about 10-15 seconds.
4.标本变化量：影响标本结果主要有以下因素；4. Specimen variation: The following factors mainly affect the results of specimens;
A.血标本要和空气隔绝，注射器隔绝空气较好。A. The blood sample should be isolated from the air, and the syringe is better isolated from the air.
B.血标本温度，温度对标本的影响较大，正常情况下注射器标本放置时间不宜超过15分钟，这是因为注射器不能快速冷却血标本，这样血细胞、尤其是白细胞和网状红细胞继续代谢，产生乳酸等酸性代谢产物，使PH、BE下降。B. The temperature of the blood sample. Temperature has a great influence on the sample. Under normal circumstances, the syringe sample should not be left for more than 15 minutes. This is because the syringe cannot quickly cool the blood sample, so that blood cells, especially white blood cells and reticulocytes, continue to metabolize and produce Acidic metabolites such as lactic acid reduce PH and BE.
C.血气标本贮存材料。注射器是塑料制品，塑料制品在氧分压大于15.96kpa(120mmHg)有明显耗氧，(见血气酸碱分析和国内外有关血气书)。C. Blood gas specimen storage materials. The syringe is a plastic product, and the plastic product has obvious oxygen consumption when the oxygen partial pressure is greater than 15.96kpa (120mmHg), (see blood gas acid-base analysis and relevant blood gas books at home and abroad).
5.血气标本定量：血气标本的定量指，抗凝剂的定量和采血的定量。注射器抗凝剂的多少和采血量完全靠操作人员的经验，当抗凝剂过多时会影响血气生化结果，当抗凝剂过少时会产生凝血现象。5. Quantification of blood gas samples: Quantification of blood gas samples refers to the quantification of anticoagulant and blood sampling. The amount of anticoagulant in the syringe and the amount of blood collected depend entirely on the experience of the operator. When there is too much anticoagulant, it will affect the biochemical results of blood gas, and when there is too little anticoagulant, coagulation will occur.
6.止血困难：由于注射器采用较粗的针头，对动脉血管损伤较大，止血时间较长(10-15分钟)，也易产生血栓。6. Difficulty in hemostasis: Since the syringe adopts a thicker needle, the damage to the artery is greater, the hemostasis time is longer (10-15 minutes), and thrombus is also prone to occur.
因而，目前在医护领域，普遍利用血气采血器(血气针)采集血气标本，可以解决自动采血和采血量(部分定量)定量的问题，即解决了抗凝剂定量的问题，也使采集动脉血变的简单方便。Therefore, in the field of medical care, blood gas samples are generally collected by blood gas blood collection devices (blood gas needles), which can solve the problems of automatic blood collection and blood collection (partial quantitative) quantification, that is, solve the problem of anticoagulant quantification, and also make arterial blood collection It becomes simple and convenient.
现有产品，例如由德国罗氏诊断有限公司生产的微量血气采血器即为先在国内医护领域普遍用于采集血气标本的工具。其产品结构如图1至图3所示，包括采血针11，壳体12和针头密封件13。采血针采用较细的针头，壳体12的前端形成有鲁尔接头121，采血针11通过鲁尔接头121与壳体12连接，壳体内设置U型毛细管等结构。可以实现定量微量采血。Existing products, such as the micro-blood gas blood collection device produced by Roche Diagnostics Co., Ltd., Germany, are the first tools commonly used in the domestic medical field to collect blood gas samples. Its product structure is shown in FIGS. 1 to 3 , including a blood collection needle 11 , a housing 12 and a needle seal 13 . The blood collection needle adopts a thinner needle, and the front end of the housing 12 is formed with a Luer connector 121, and the blood collection needle 11 is connected with the housing 12 through the Luer connector 121, and a U-shaped capillary and other structures are arranged in the housing. Quantitative micro blood collection can be realized.
但是现有产品在使用过程中仍存在一些不够便利及卫生的地方，如图1所示，产品在使用之前，采血针11是由针头密封件13密封的，处于无菌环境中，需要采血时，要将针头密封件13取下，如图2所示，然后进行采血，采血结束后，再盖上针头密封件13，然后提交采集的血气样本，而在盖回针头密封件13时，由于针头密封件13的内壁已和外界接触，破坏了无菌环境，会在一定程度上影响血气样本的参数；另一方面，采血过程中，针头密封件13与采血针11是分离的，不能随意放置，使得操作比较麻烦；并且，采血针11使用的针头是非常尖锐的，医护人员在将针头密封件盖回时，有可能由于紧张或匆忙的缘故被针头刺伤，不仅造成了人员伤害，更会污染血气样本。However, existing products still have some inconvenient and hygienic places during use. As shown in Figure 1, before the product is used, the blood collection needle 11 is sealed by the needle seal 13 and is in a sterile environment. , the needle seal 13 will be removed, as shown in Figure 2, and then blood collection will be performed. After the blood collection is over, the needle seal 13 will be covered, and then the collected blood gas sample will be submitted. When the needle seal 13 is covered back, due to The inner wall of the needle seal 13 has been in contact with the outside world, destroying the sterile environment, which will affect the parameters of the blood gas sample to a certain extent; Placement makes the operation more troublesome; and the needle used by the blood collection needle 11 is very sharp, and when the medical staff covers the needle seal back, they may be stabbed by the needle due to tension or haste, which not only causes personal injury, It will also contaminate blood gas samples.
因此有必要设计一种操作更加便捷、安全、卫生的微量血气采血器，以克服上述问题。Therefore it is necessary to design a more convenient, safe and hygienic trace blood gas blood sampling device to overcome the above problems.
实用新型内容Utility model content
针对上述问题，本实用新型的目的是提供一种微量血气采血器，在采血后，能够方便完成针头的密封，操作快捷安全，并且在采血完成后，针头密封件能够快速封闭针头，使血气样本与空气隔绝，避免血气样本因与外界空气相通而影响血气检测结果。In view of the above problems, the purpose of this utility model is to provide a micro blood gas blood sampling device, which can conveniently complete the sealing of the needle after blood collection, and the operation is fast and safe. It is isolated from the air to prevent the blood gas test results from being affected by the blood gas sample being communicated with the outside air.
为达上述目的，本实用新型采取的技术方案是：For reaching above-mentioned purpose, the technical scheme that the utility model takes is:
一种微量血气采血器，包括：A micro blood gas blood sampling device, comprising:
一壳体，所述壳体上形成有一连接座，所述连接座内部形成有一滑道；A housing, a connecting seat is formed on the housing, and a slideway is formed inside the connecting seat;
与所述壳体连接的采血针；a blood collection needle connected to the housing;
一针头密封件，包括：用以套设所述采血针的一帽体，所述帽体的封闭端(对应采血针尖端位置)嵌设有一密封件，所述帽体的一侧设有一豁口；A needle seal, comprising: a cap for covering the blood collection needle, a seal is embedded in the closed end of the cap (corresponding to the tip of the blood collection needle), and a gap is provided on one side of the cap ;
形成于帽体的开口端的一第一连杆，形成的位置在帽体上与所述豁口相对的另一侧；a first connecting rod formed at the opening end of the cap body, formed on the other side of the cap body opposite to the notch;
一端通过转动关节与所述第一连杆连接的一第二连杆，所述第二连杆可沿所述滑道径向滑动。A second connecting rod with one end connected to the first connecting rod through a rotating joint, the second connecting rod can slide radially along the slideway.
进一步地，所述第二连杆的另一端具有一导向柱，所述导向柱外壁尺寸等于或略小于滑道内壁尺寸；所述滑道的一侧形成有带孔止动部，第二连杆穿过该带孔止动部。Further, the other end of the second connecting rod has a guide column, the size of the outer wall of the guide column is equal to or slightly smaller than the size of the inner wall of the slideway; a stopper with a hole is formed on one side of the slideway, and the second link The rod passes through the holed stop.
进一步地，还包括一弹簧，该弹簧套设于所述第二连杆，两端分别抵靠所述带孔止动部及导向柱。Further, a spring is further included, the spring is sheathed on the second connecting rod, and the two ends of the spring respectively abut against the stopper with a hole and the guide column.
进一步地，所述密封件为橡胶塞。Further, the sealing member is a rubber plug.
进一步地，所述豁口长度大于所述采血针的长度减去第二连杆在滑道中径向滑动的行程。Further, the length of the notch is greater than the length of the blood collection needle minus the stroke of the second connecting rod sliding radially in the slideway.
进一步地，所述转动关节为一枢接结构。Further, the rotating joint is a pivot structure.
进一步地，所述转动关节为一薄壁结构。Further, the rotary joint is a thin-walled structure.
进一步地，所述弹簧为压簧。Further, the spring is a compression spring.
进一步地，所述采血针通过形成于壳体前端的鲁尔接头与壳体可拆卸连接。Further, the blood collection needle is detachably connected to the housing through a Luer joint formed at the front end of the housing.
进一步地，所述采血针与所述壳体一体成型。Further, the blood collection needle is integrally formed with the housing.
通过采取上述技术方案，采血之前，一手握住壳体，另一只手拉动帽体，然后于转动关节处转动，露出针头，即可进行采血，采血完成后，按照相反的过程先转动再拉动，然后在弹簧的作用下，配合第二连杆的导向，回推帽体，可以很容易将采血针扎入密封件中。可在采血后1秒以内完成，将外界对血气样本的影响降至最低。By adopting the above technical scheme, before blood collection, hold the shell with one hand, pull the cap body with the other hand, and then rotate at the rotating joint to expose the needle, and then blood collection can be performed. After the blood collection is completed, first rotate and then pull according to the opposite process , and then under the action of the spring, in cooperation with the guidance of the second connecting rod, the cap body is pushed back, so that the blood collection needle can be easily inserted into the sealing member. It can be completed within 1 second after blood collection, minimizing the influence of the outside world on blood gas samples.
附图说明Description of drawings
图1为背景技术中现有产品的微量血气采血器的整体结构示意图。Fig. 1 is a schematic diagram of the overall structure of a micro blood gas blood sampling device of an existing product in the background technology.
图2为图1中的微量血气采血器去掉针头密封件后的结构示意图。Fig. 2 is a schematic diagram of the structure of the micro blood gas blood sampling device in Fig. 1 after the needle seal is removed.
图3为图1中的微量血气采血器的壳体的结构示意图。Fig. 3 is a schematic structural view of the housing of the trace blood gas sampling device in Fig. 1 .
图4为本实用新型一实施例中的微量血气采血器的整体结构示意图。Fig. 4 is a schematic diagram of the overall structure of the trace blood gas blood sampling device in an embodiment of the present invention.
图5为本实用新型一实施例中的微量血气采血器进行采血时的整体结构示意图。Fig. 5 is a schematic diagram of the overall structure of the trace blood gas blood sampling device in an embodiment of the present invention when blood is collected.
图6为本实用新型一实施例中的微量血气采血器取下采血针时的整体结构示意图。Fig. 6 is a schematic diagram of the overall structure of the trace blood gas blood collection device in an embodiment of the present invention when the blood collection needle is removed.
图7为本实用新型一实施例中的微量血气采血器的另一整体结构示意图，其中部分结构做剖面显示。Fig. 7 is another schematic diagram of the whole structure of the trace blood gas blood sampling device in an embodiment of the present invention, in which part of the structure is shown in section.
图8为本实用新型一实施例中的微量血气采血器的局部放大结构示意图。Fig. 8 is a partially enlarged structural schematic diagram of a trace blood gas blood sampling device in an embodiment of the present invention.
具体实施方式Detailed ways
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整的描述，显然，所描述的实施例仅是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。下面配合所附图对本发明的特征和优点作详细说明。The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model. The features and advantages of the present invention will be described in detail below in conjunction with the accompanying drawings.
如图4至图6所示，在一实施例中提供一种微量血气采血器，包括：As shown in Fig. 4 to Fig. 6, a micro blood gas blood sampling device is provided in one embodiment, comprising:
壳体2，壳体上形成有连接座3，参考图7及图8，连接,3内部形成有一滑道；The shell 2 is formed with a connecting seat 3, referring to Fig. 7 and Fig. 8, connecting, and a slideway is formed inside the 3;
与壳体连接的采血针1；A blood collection needle 1 connected to the housing;
针头密封件4，如图7所示，包括：用以套设采血针1的帽体41，帽体41的封闭端(对应采血针尖端位置)嵌设有作为密封件的橡胶塞42，帽体的一侧设有一豁口；The needle seal 4, as shown in Figure 7, includes: a cap body 41 for sheathing the blood collection needle 1, the closed end of the cap body 41 (corresponding to the position of the blood collection needle tip) is embedded with a rubber plug 42 as a seal, the cap one side of the body is provided with a gap;
形成于帽体41的开口端的第一连杆，形成的位置在帽体上与豁口相对的另一侧；此外，该侧还形成有把手46，在拉动或转动帽体41是，可以用两个手指加持把手46操作。The first connecting rod formed at the opening end of the cap body 41 is formed on the other side of the cap body opposite to the notch; in addition, a handle 46 is also formed on this side, and when pulling or turning the cap body 41, two handles can be used. One finger holds the handle 46 for operation.
一端通过转动关节与第一连杆连接的第二连杆43，第二连杆43可沿滑道径向滑动。One end of the second connecting rod 43 is connected to the first connecting rod through a rotary joint, and the second connecting rod 43 can slide radially along the slideway.
第二连杆43的另一端具有一导向柱，导向柱外壁尺寸等于或略小于滑道内壁尺寸，例如，滑道和导向柱的截面均为圆形，则二者的直径之比为1:0.95～1，其他形状依次类推；从而顺畅滑动；滑道的一侧形成有带孔止动部，第二连杆43穿过该带孔止动部；The other end of the second connecting rod 43 has a guide column, and the size of the outer wall of the guide column is equal to or slightly smaller than the size of the slideway inner wall. For example, the cross-section of the slideway and the guide column is circular, and the ratio of the diameters of the two is 1: 0.95～1, other shapes and so on; so as to slide smoothly; one side of the slideway is formed with a stopper with a hole, and the second connecting rod 43 passes through the stopper with a hole;
还包括弹簧5，其为压簧，弹簧5套设于第二连杆43，两端分别抵靠带孔止动部及导向柱。弹簧能够在帽体套设在采血针时使二者连接更加牢固，并且在采血完成后，将帽体重新扣上时提供助力。It also includes a spring 5, which is a compression spring. The spring 5 is sheathed on the second connecting rod 43, and the two ends of the spring 5 respectively abut against the stopper with holes and the guide column. The spring can make the connection between the two more firm when the cap body is sleeved on the blood collection needle, and provide assistance when the cap body is fastened again after the blood collection is completed.
结合前述，豁口长度大于采血针1的长度减去第二连杆43在滑道中径向滑动的行程。In combination with the foregoing, the length of the notch is greater than the length of the blood collection needle 1 minus the stroke of the second connecting rod 43 sliding radially in the slideway.
如图，转动关节可以选用一枢接结构，在另外的实施例中，也可以选用形成于第一连杆和第二连杆连接处的一薄壁结构。As shown in the figure, a pivot joint structure can be selected for the rotating joint, and in another embodiment, a thin-walled structure formed at the joint between the first connecting rod and the second connecting rod can also be selected.
结合图6，采血针1可通过形成于壳体2前端的鲁尔接头与壳体2可拆卸连接。在另外的实施例中，也可以将采血针与壳体一体成型制作。Referring to FIG. 6 , the blood collection needle 1 can be detachably connected to the housing 2 through a Luer connector formed at the front end of the housing 2 . In another embodiment, the blood collection needle and the housing can also be integrally formed.
如图8，采血之前，一手握住壳体，另一只手沿箭头S1方向拉动帽体，然后于转动关节处沿箭头S2方向转动，露出针头，即可进行采血，采血完成后，按照相反的过程先转动再拉动，然后在弹簧的作用下，配合第二连杆的导向，可以很容易将采血针扎入密封件中。可在采血后1秒以内完成，将外界对血气样本的影响降至最低。As shown in Figure 8, before blood collection, hold the shell with one hand, pull the cap with the other hand in the direction of arrow S1, and then turn the rotating joint in the direction of arrow S2 to expose the needle, and blood collection can be performed. After blood collection is completed, follow the opposite direction The process of turning first and then pulling, and then under the action of the spring and the guidance of the second connecting rod, the blood collection needle can be easily inserted into the sealing member. It can be completed within 1 second after blood collection, minimizing the influence of the outside world on blood gas samples.
| Application Number | Priority Date | Filing Date | Title |
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| CN201720527135.2UCN207768400U (en) | 2017-05-12 | 2017-05-12 | A kind of micro vim and vigour hemostix |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720527135.2UCN207768400U (en) | 2017-05-12 | 2017-05-12 | A kind of micro vim and vigour hemostix |
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| CN207768400Utrue CN207768400U (en) | 2018-08-28 |
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| CN201720527135.2UExpired - Fee RelatedCN207768400U (en) | 2017-05-12 | 2017-05-12 | A kind of micro vim and vigour hemostix |
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| CN (1) | CN207768400U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105769909A (en)* | 2016-05-13 | 2016-07-20 | 云南舜喜再生医学工程有限公司 | Hemostix and method for directly obtaining cytokine-containing serum |
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105769909A (en)* | 2016-05-13 | 2016-07-20 | 云南舜喜再生医学工程有限公司 | Hemostix and method for directly obtaining cytokine-containing serum |
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|---|---|---|
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20180828 Termination date:20190512 |