技术领域technical field
本发明涉及医疗器械领域，特别涉及一种安全型静脉输液针及其实现方法。The invention relates to the field of medical devices, in particular to a safe intravenous infusion needle and a realization method thereof.
背景技术Background technique
临床上现使用的一次性静脉输液针主要由护帽、钢针、针座、针翼、连接管组成。使用时，医护人员先取下罩在钢针上的护帽，然后使用钢针进行静脉血管穿刺，见回血并确认穿刺成功后进行输液，在输液的整个过程中，钢针一直留在血管内，然而由于钢针的针尖非常锐利，患者在输液时舒展肢体，被钢针刺破血管的几率很大，尤其对儿童及精神病患者，输液针待输液完毕后，医护人员将钢针从人体的静脉血管抽出，沾有病人血液的钢针裸露在外面，易造成医护人员和患者的误伤和感染。The disposable intravenous infusion needle currently used clinically mainly consists of a protective cap, a steel needle, a needle seat, a needle wing, and a connecting tube. When in use, the medical staff first removes the protective cap covering the steel needle, and then uses the steel needle to perform venous blood vessel puncture. After seeing the blood return and confirming that the puncture is successful, the infusion is performed. During the entire process of infusion, the steel needle remains in the blood vessel. However, because the needle tip of the steel needle is very sharp, the patient stretches his limbs during the infusion, and the probability of being punctured by the steel needle is very high, especially for children and mentally ill patients. When the blood vessel is pulled out, the steel needle stained with the patient's blood is exposed outside, which may easily cause accidental injury and infection of medical staff and patients.
为了解决上述问题，本发明采取了新的技术方案。In order to solve the above problems, the present invention adopts a new technical solution.
发明内容Contents of the invention
本发明的目的是提供一种实用的安全型静脉输液针及其实现方法，所述静脉输液针的针翼可以回拉穿刺针使得穿刺针回退至所述导管座内部，保护医护人员或其他人不被刺伤。The purpose of the present invention is to provide a practical and safe intravenous infusion needle and its implementation method. The needle wings of the intravenous infusion needle can pull back the puncture needle so that the puncture needle can be retracted to the inside of the catheter adapter, so as to protect medical staff or others People are not stabbed.
在本发明中，本发明第一方面提供了一种安全型静脉输液针，所述输液针包括：留置导管、导管座、穿刺针和针座。In the present invention, the first aspect of the present invention provides a safety intravenous infusion needle, which includes: an indwelling catheter, a catheter seat, a puncture needle and a needle seat.
该留置导管的一端连接于所述的导管座，穿刺针的一端连接于所述的针座，且该穿刺针和针座为相互连通的中空结构，该留置导管包括穿刺状态和留置状态两种，且留置状态经由穿刺状态转变获得。One end of the indwelling catheter is connected to the catheter base, and one end of the puncture needle is connected to the needle base, and the puncture needle and the needle base are hollow structures that communicate with each other. The indwelling catheter includes two states: puncture state and indwelling state. , and the indwelling state is obtained through the transition of the puncture state.
在其中的穿刺状态下，前述的穿刺针置放在留置导管内起到支撑作用，利用穿刺针尖端引导着外侧的留置导管，相互配合着侵入到所穿刺的生理组织内。In the puncture state, the above-mentioned puncture needle is placed in the indwelling catheter to play a supporting role, and the tip of the puncture needle guides the outer indwelling catheter to cooperate with each other and invade into the punctured physiological tissue.
其中的留置状态，是在经历了穿刺状态后，通过对针座进行抽拉操作，使该穿刺针从留置导管中抽出，留置导管在前述生理组织内呈留置状态，通过穿刺针和针座相互连通的中空结构，向前述的留置导管进行输液操作。The indwelling state is that after experiencing the puncture state, the puncture needle is pulled out from the indwelling catheter by pulling the needle seat, and the indwelling catheter is in the indwelling state in the aforementioned physiological tissue. The connected hollow structure performs infusion operation to the aforementioned indwelling catheter.
在另一优选例中，对应前述的针座，设置鲁尔接头，将鲁尔接头连接输液管，或者对应着前述的针座，外接输液管，或者对应着前述的针座通过一体化的方式设置输液管。In another preferred example, corresponding to the aforementioned needle hub, a Luer connector is provided, and the Luer connector is connected to the infusion tube, or corresponds to the aforementioned needle hub, and is externally connected to the infusion tube, or corresponds to the aforementioned needle hub in an integrated manner Set up the infusion tube.
在另一优选例中，所述输液针还设有针翼，所述针翼设有第一凹槽，所述第一凹槽与所述导管座的侧端相匹配，所述针翼尾端设有卡扣，所述针座外表面上设有第一卡槽，且所述第一卡槽和所述针翼的尾部卡扣相匹配。In another preferred example, the infusion needle is further provided with a needle wing, and the needle wing is provided with a first groove, the first groove matches the side end of the catheter adapter, and the needle wing tail A buckle is provided at the end, and a first slot is provided on the outer surface of the needle holder, and the first slot is matched with the buckle at the tail of the needle wing.
在另一优选例中，所述针座的外表面上设有两个第一卡槽，所述输液针设有两个所述针翼，且两个所述第一卡槽与两个所述针翼分别相互对应。In another preferred example, the outer surface of the needle holder is provided with two first slots, the infusion needle is provided with two needle wings, and the two first slots are connected with the two The needle wings correspond to each other respectively.
在另一优选例中，所述第一卡槽的构造中包含至少一条斜边，用于快速脱落所述针翼。In another preferred example, the structure of the first locking groove includes at least one beveled edge for quick release of the needle wing.
在另一优选例中，将所述针翼往回拉时，所述穿刺针回退至所述导管座内部。In another preferred example, when the needle wings are pulled back, the puncture needle retracts to the inside of the catheter adapter.
在另一优选例中，所述导管座上设有限位结构，所述针座的外表面一圈上设有第二卡槽，所述第二卡槽与所述限位结构的端部相匹配，留置状态下，所述第二卡槽与所述限位结构的端部相结合，用于将所述限位结构的端部卡扣在所述第二卡槽内从而固定住所述针座。In another preferred example, a position-limiting structure is provided on the catheter base, and a second locking groove is provided on a circle of the outer surface of the needle base, and the second locking groove is connected to the end of the position-limiting structure. Matching, in the indwelling state, the second locking slot is combined with the end of the limiting structure, and is used to buckle the end of the limiting structure in the second locking slot to fix the needle seat.
在另一优选例中，所述针座的外表面一圈上设有第二凹槽，所述第二凹槽内设有弹性圈，用于保证所述针座的侧体与所述导管座的侧体之间的密封性。In another preferred example, a second groove is provided on the outer surface of the needle holder, and an elastic ring is provided in the second groove to ensure that the side body of the needle holder is in contact with the catheter. The tightness between the side bodies of the seat.
在另一优选例中，所述导管座内设置有密封结构，以保证留置状态下所述导管座的密封性。In another preferred example, a sealing structure is provided inside the catheter adapter to ensure the sealing performance of the catheter adapter in an indwelling state.
在另一优选例中，所述输液针还设有护帽，所述护帽设置在所述留置导管的管口上。In another preferred example, the infusion needle is further provided with a protective cap, and the protective cap is arranged on the nozzle of the indwelling catheter.
在另一优选例中，所述针座与所述穿刺针连接的一端为穿刺针连接端，在该穿刺针连接端上设有通孔，在留置状态下该通孔及穿刺针构成不同输液方向的导通结构，通过该导通结构向所述留置导管进行输液操作。In another preferred example, the end connecting the needle base and the puncture needle is the connection end of the puncture needle, and a through hole is provided on the connection end of the puncture needle. In the indwelling state, the through hole and the puncture needle form different infusion Direction of the conduction structure through which the indwelling catheter is infused.
在另一优选例中，所述穿刺针的外径为0.3mm-1.2mm。In another preferred example, the outer diameter of the puncture needle is 0.3mm-1.2mm.
在另一优选例中，所述留置导管的长度为1.5cm-3cm。In another preferred example, the length of the indwelling catheter is 1.5cm-3cm.
在另一优选例中，所述导管座为透明状。In another preferred example, the catheter adapter is transparent.
本发明第二方面提供了一种安全型静脉输液针的实现方法，该方法包括如下步骤：The second aspect of the present invention provides a method for implementing a safe intravenous infusion needle, the method comprising the following steps:
(a)提供第一方面所述的一种安全型静脉输液针；(a) providing a safety type intravenous infusion needle described in the first aspect;
(b)在初始的穿刺状态下，前述的穿刺针置放在留置导管内起到支撑作用，利用穿刺针尖端引导着外侧的留置导管，相互配合着侵入到所穿刺的生理组织内；(b) In the initial puncture state, the aforementioned puncture needle is placed in the indwelling catheter to play a supporting role, and the tip of the puncture needle is used to guide the outer indwelling catheter, and cooperate with each other to invade into the punctured physiological tissue;
(c)在经历了穿刺状态后，通过对针座进行抽拉操作，使该穿刺针从留置导管中抽出，留置导管在前述生理组织内呈留置状态，通过穿刺针和针座相互连通的中空结构，向前述的留置导管进行输液操作。(c) After going through the puncture state, the puncture needle is pulled out from the indwelling catheter by pulling the needle seat, and the indwelling catheter is in an indwelling state in the aforementioned physiological tissue, and the hollow space through which the puncture needle and the needle seat communicate with each other Structure, infusion operation to the aforementioned indwelling catheter.
附图说明Description of drawings
图1为实施例1中的一种安全型静脉输液针的结构示意图；Fig. 1 is the structural representation of a kind of safety type intravenous infusion needle in embodiment 1;
图2为实施例1中的一种安全型静脉输液针的结构示意图；Fig. 2 is the structural representation of a kind of safety type intravenous infusion needle in embodiment 1;
图3为实施例2中的一种安全型静脉输液针的结构示意图。Fig. 3 is a schematic structural view of a safe intravenous infusion needle in Example 2.
具体实施方式detailed description
本发明人经过广泛而深入的研究，首次开发了一种安全型静脉输液针及其实现方法，所述静脉输液针设有针翼，穿刺成功后可以回拉穿刺针使得穿刺针回退至所述导管座内部，确保输液时穿刺针不会刺破血管，提高了输液时的安全性；所述静脉输液针的针座上设有第二卡槽，所述第二卡槽与所述限位结构的端部相匹配，当针翼回拉穿刺针时，所述第二卡槽与所述限位结构的端部相结合，可以将所述限位结构的端部卡扣在所述第二卡槽内从而固定住所述针座，使得针座不会从导管座内被拉出进而使得穿刺针依然在导管座内，避免了沾有病人血液的穿刺针裸露在外面，从而造成医护人员和患者的误伤和感染。After extensive and in-depth research, the inventor first developed a safe intravenous infusion needle and its realization method. The inside of the catheter seat ensures that the puncture needle will not puncture the blood vessel during infusion, which improves the safety during infusion; the needle seat of the intravenous infusion needle is provided with a second card slot, and the second card slot and the limiter When the needle wing pulls back the puncture needle, the second slot is combined with the end of the limiting structure, and the end of the limiting structure can be buckled on the The needle holder is fixed in the second card slot so that the needle holder will not be pulled out from the catheter holder so that the puncture needle is still in the catheter holder, which avoids the exposure of the puncture needle stained with the patient's blood to the outside, thus causing medical problems. Injury and infection of personnel and patients.
静脉输液针及其实现方式Intravenous infusion needle and its implementation
本发明提供了一种安全型静脉输液针及其实现方式，所述输液针包括：留置导管1、导管座2、穿刺针3和针座4。The present invention provides a safety type intravenous infusion needle and its realization. The infusion needle comprises: an indwelling catheter 1 , a catheter seat 2 , a puncture needle 3 and a needle seat 4 .
本发明中，该留置导管1的一端连接于所述的导管座2，穿刺针3的一端连接于所述的针座4，且该穿刺针3和针座4为相互连通的中空结构，该留置导管1包括穿刺状态和留置状态两种，且留置状态经由穿刺状态转变获得。In the present invention, one end of the indwelling catheter 1 is connected to the catheter hub 2, and one end of the puncture needle 3 is connected to the needle hub 4, and the puncture needle 3 and the needle hub 4 are hollow structures communicating with each other. The indwelling catheter 1 includes two states, a puncture state and an indwelling state, and the indwelling state is obtained through the transition of the puncture state.
本发明中，在其中的穿刺状态下，前述的穿刺针3置放在留置导管1内起到支撑作用，利用穿刺针3尖端引导着外侧的留置导管1，相互配合着侵入到所穿刺的生理组织内。In the present invention, in the puncture state, the above-mentioned puncture needle 3 is placed in the indwelling catheter 1 to play a supporting role, and the tip of the puncture needle 3 is used to guide the outer indwelling catheter 1, and cooperate with each other to penetrate into the punctured physiological within the organization.
本发明中，其中的留置状态，是在经历了穿刺状态后，通过对针座4进行抽拉操作，使该穿刺针3从留置导管1中抽出，留置导管1在前述生理组织内呈留置状态，通过穿刺针3和针座4相互连通的中空结构，向前述的留置导管1进行输液操作。In the present invention, the indwelling state is that after the puncture state, the puncture needle 3 is pulled out from the indwelling catheter 1 by pulling the needle holder 4, and the indwelling catheter 1 is in the indwelling state in the aforementioned physiological tissue. , through the hollow structure in which the puncture needle 3 and the needle base 4 communicate with each other, the infusion operation is performed to the aforementioned indwelling catheter 1 .
优选地，对应前述的针座4，设置鲁尔接头(图中未画出)，将鲁尔接头连接输液管5，或者对应着前述的针座4，外接输液管5，或者对应着前述的针座通过一体化的方式设置输液管5。Preferably, corresponding to the aforementioned needle hub 4, a Luer connector (not shown in the figure) is provided, and the Luer connector is connected to the infusion tube 5, or corresponds to the aforementioned needle hub 4, and is externally connected to the infusion tube 5, or corresponds to the aforementioned The needle seat is provided with the infusion tube 5 in an integrated manner.
在另一优选例中，所述输液针还设有针翼6，所述针翼6设有第一凹槽7，所述第一凹槽7与所述导管座2的侧端相匹配，所述针翼6尾端设有卡扣，所述针座4外表面上设有第一卡槽8，且所述第一卡槽8和所述针翼6的尾部卡扣相匹配。In another preferred example, the infusion needle is further provided with a needle wing 6, and the needle wing 6 is provided with a first groove 7, and the first groove 7 is matched with the side end of the catheter base 2, The rear end of the needle wing 6 is provided with a buckle, and the outer surface of the needle holder 4 is provided with a first locking groove 8 , and the first locking groove 8 is matched with the buckle at the tail of the needle wing 6 .
在另一优选例中，所述针座4的外表面上设有两个第一卡槽8，所述输液针设有两个所述针翼6，且两个所述第一卡槽8与两个所述针翼6分别相互对应。In another preferred example, the outer surface of the needle base 4 is provided with two first slots 8, the infusion needle is provided with two needle wings 6, and the two first slots 8 The two needle wings 6 respectively correspond to each other.
在另一优选例中，所述第一卡槽8的构造中包含至少一条斜边，用于快速脱落所述针翼6。In another preferred example, the structure of the first locking groove 8 includes at least one beveled edge for quickly falling off the needle wing 6 .
在另一优选例中，将所述针翼6往回拉时，所述穿刺针3回退至所述导管座2内部。In another preferred example, when the needle wing 6 is pulled back, the puncture needle 3 retreats to the inside of the catheter adapter 2 .
在另一优选例中，所述导管座2上设有限位结构9，所述针座4的外表面一圈上设有第二卡槽10，所述第二卡槽10与所述限位结构9的端部相匹配，留置状态下，所述第二卡槽10与所述限位结构9的端部相结合，用于将所述限位结构9的端部卡扣在所述第二卡槽10内从而固定住所述针座4。In another preferred example, the catheter base 2 is provided with a limiting structure 9, and the outer surface of the needle base 4 is provided with a second locking groove 10, and the second locking groove 10 is in contact with the limiting structure. The end of the structure 9 matches, and in the indwelling state, the second locking groove 10 is combined with the end of the limiting structure 9, and is used to buckle the end of the limiting structure 9 on the first The needle base 4 is fixed in the two slots 10 .
在另一优选例中，所述针座4的外表面一圈上设有第二凹槽(图中未画出)，所述第二凹槽内设有弹性圈11，用于保证所述针座4与所述导管座2的密封性。In another preferred example, a second groove (not shown in the figure) is provided on the outer surface of the needle base 4, and an elastic ring 11 is provided in the second groove to ensure that the The tightness between the needle hub 4 and the catheter hub 2.
在另一优选例中，所述导管座2内设置有密封结构(图中未画出)，以保证留置状态下所述导管座2的密封性。In another preferred example, a sealing structure (not shown in the figure) is provided inside the catheter adapter 2 to ensure the sealing performance of the catheter adapter 2 in the indwelling state.
在另一优选例中，所述输液针还设有护帽(图中未画出)，所述护帽设置在所述留置导管1的管口上。In another preferred example, the infusion needle is further provided with a protective cap (not shown in the figure), and the protective cap is arranged on the nozzle of the indwelling catheter 1 .
在另一优选例中，所述针座4与所述穿刺针3连接的一端为穿刺针连接端12，在该穿刺针连接端12上设有通孔，在留置状态下该通孔及穿刺针3构成不同输液方向的导通结构，通过该导通结构向所述留置导管1进行输液操作。In another preferred example, one end of the needle base 4 connected to the puncture needle 3 is the puncture needle connection end 12, and a through hole is provided on the puncture needle connection end 12, and the through hole and the puncture needle are connected in the indwelling state. The needle 3 constitutes a conduction structure for different infusion directions, through which the indwelling catheter 1 is infused.
在另一优选例中，所述穿刺针3的外径为0.3mm-1.2mm。In another preferred example, the outer diameter of the puncture needle 3 is 0.3mm-1.2mm.
在另一优选例中，所述留置导管1的长度为1.5cm-3cm。In another preferred example, the length of the indwelling catheter 1 is 1.5cm-3cm.
在另一优选例中，所述导管座2为透明状。In another preferred example, the catheter adapter 2 is transparent.
另外该安全型静脉输液针的实现方法包括如下步骤：In addition, the realization method of the safety type intravenous infusion needle comprises the following steps:
(a)提供上述所述的一种安全型静脉输液针；(a) Provide a safe intravenous infusion needle as mentioned above;
(b)在初始的穿刺状态下，前述的穿刺针3置放在留置导管1内起到支撑作用，利用穿刺针3尖端引导着外侧的留置导管1，相互配合着侵入到所穿刺的生理组织内；(b) In the initial puncture state, the aforementioned puncture needle 3 is placed in the indwelling catheter 1 to play a supporting role, and the tip of the puncture needle 3 guides the outer indwelling catheter 1 to cooperate with each other and invade into the punctured physiological tissue Inside;
(c)在经历了穿刺状态后，通过对针座4进行抽拉操作，使该穿刺针3从留置导管1中抽出，留置导管1在前述生理组织内呈留置状态，通过穿刺针3和针座4相互连通的中空结构，向前述的留置导管1进行输液操作。(c) After experiencing the puncture state, the puncture needle 3 is pulled out from the indwelling catheter 1 by pulling the needle base 4, and the indwelling catheter 1 is in the indwelling state in the aforementioned physiological tissue, and the puncture needle 3 and the needle The hollow structures in which the seats 4 communicate with each other perform infusion operations to the aforementioned indwelling catheter 1 .
本发明的主要优点包括：The main advantages of the present invention include:
(a)所述静脉输液针设有针翼6，穿刺成功后可以回拉穿刺针3使得穿刺针3回退至所述导管座2内部，确保输液时针头不会刺破血管，减轻了患者的恐惧心理，输液过程中，可以适当的舒展肢体，摆脱原有输液时僵硬的姿势，提高了输液时的安全性；(a) The intravenous infusion needle is provided with a needle wing 6. After the puncture is successful, the puncture needle 3 can be pulled back to make the puncture needle 3 fall back to the inside of the catheter adapter 2, so as to ensure that the needle will not puncture the blood vessel during infusion, which relieves the pain of the patient. During the infusion process, you can properly stretch your limbs, get rid of the original stiff posture during infusion, and improve the safety during infusion;
(b)所述静脉输液针的针座4上设有第二卡槽10，所述第二卡槽10与所述限位结构9的端部相匹配，当针翼6回拉穿刺针3时，所述第二卡槽10与所述限位结构9的端部相结合，可以将所述限位结构9的端部卡扣在所述第二卡槽10内从而固定住所述针座4，使得针座4不会从导管座2内被拉出进而使得穿刺针3依然在导管座2内，避免了沾有病人血液的穿刺针3裸露在外面，从而造成医护人员和患者的误伤和感染，为医护工作者提供一个良好安全的工作环境；(b) The needle seat 4 of the intravenous infusion needle is provided with a second draw-in groove 10, the second draw-in groove 10 matches the end of the stop structure 9, when the needle wing 6 pulls back the puncture needle 3 , the second locking groove 10 is combined with the end of the limiting structure 9, and the end of the limiting structure 9 can be buckled in the second locking groove 10 to fix the needle hub 4, so that the needle hub 4 will not be pulled out from the catheter hub 2 so that the puncture needle 3 is still in the catheter hub 2, avoiding the exposure of the puncture needle 3 stained with the patient's blood, thus causing accidental injuries to medical staff and patients and infection, providing a good and safe working environment for medical workers;
(c)所述针座4的外表面一圈上还设有第二凹槽(图中未画出)，所述第二凹槽内设有弹性圈11，可以保证所述针座4的侧体与所述导管座2的侧体之间的密封性；(c) The outer surface of the needle holder 4 is also provided with a second groove (not shown in the figure), and the second groove is provided with an elastic ring 11, which can ensure the stability of the needle holder 4. Sealing between the side body and the side body of the catheter adapter 2;
(d)所述导管座2内还设有密封结构(图中未画出)，可以保证留置状态下所述导管座2的密封性；(d) There is also a sealing structure (not shown in the figure) inside the catheter adapter 2, which can ensure the tightness of the catheter adapter 2 in the indwelling state;
(e)所述针座4与所述穿刺针3连接的一端为穿刺针连接端12，在该穿刺针连接端12上设有通孔(图中未画出)，在留置状态下该通孔及穿刺针3构成不同输液方向的导通结构，可以避免将全部液体通过单一方向输送至留置导管1，增加液体流速；(e) One end of the needle base 4 connected to the puncture needle 3 is the puncture needle connection end 12, and a through hole (not shown in the figure) is provided on the puncture needle connection end 12. The hole and the puncture needle 3 form a conduction structure with different infusion directions, which can avoid transporting all the liquid to the indwelling catheter 1 through a single direction, and increase the flow rate of the liquid;
(f)所述第一卡槽8的构造中包含至少一条斜边，可以快速脱落所述针翼6；(f) The structure of the first locking groove 8 includes at least one beveled edge, which can quickly fall off the needle wing 6;
(g)所述静脉输液针设有两个所述第一卡槽8和与之配对的两个所述针翼6，可以作为一备一用，增加静脉输液针的使用寿命(g) The venous infusion needle is provided with two first card slots 8 and two needle wings 6 paired therewith, which can be used as one for standby and one for use, increasing the service life of the venous infusion needle
下面结合具体实施例，进一步阐述本发明。应理解，这些实施例仅用于说明本发明而不用于限制本发明的范围。下列实施例中未注明具体条件的实验方法，通常按照常规条件，或按照制造厂商所建议的条件。除非另外说明，否则百分比和份数是重量百分比和重量份数。Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. For the experimental methods without specific conditions indicated in the following examples, the conventional conditions or the conditions suggested by the manufacturer are usually followed. Percentages and parts are by weight unless otherwise indicated.
需要说明的是，在本专利的权利要求和说明书中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。It should be noted that in the claims and description of this patent, relative terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or Any such actual relationship or order between such entities or operations is implied. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.
实施例1Example 1
如图1所示，本实施例提供了一种安全型静脉输液针，所述输液针包括：留置导管1、导管座2、穿刺针3、针座4、输液管5和针翼6。As shown in FIG. 1 , this embodiment provides a safety intravenous infusion needle, which includes: an indwelling catheter 1 , a catheter hub 2 , a puncture needle 3 , a needle hub 4 , an infusion tube 5 and a needle wing 6 .
该留置导管1的一端连接于所述的导管座2，穿刺针3的一端连接于所述的针座4，且该穿刺针3和针座4为相互连通的中空结构，该留置导管1包括穿刺状态和留置状态两种，且留置状态经由穿刺状态转变获得。One end of the indwelling catheter 1 is connected to the catheter hub 2, and one end of the puncture needle 3 is connected to the needle hub 4, and the puncture needle 3 and the needle hub 4 are hollow structures communicating with each other, and the indwelling catheter 1 includes There are two kinds of puncture state and indwelling state, and the indwelling state is obtained through the transition of puncture state.
在其中的穿刺状态下，前述的穿刺针3置放在留置导管1内起到支撑作用，利用穿刺针3尖端引导着外侧的留置导管1，相互配合着侵入到所穿刺的生理组织内。In the puncture state, the aforementioned puncture needle 3 is placed in the indwelling catheter 1 to play a supporting role, and the tip of the puncture needle 3 guides the outer indwelling catheter 1 to cooperate with each other and invade into the punctured physiological tissue.
其中的留置状态，是在经历了穿刺状态后，通过对针座4进行抽拉操作，使该穿刺针3从留置导管1中抽出，留置导管1在前述生理组织内呈留置状态，通过穿刺针3和针座4相互连通的中空结构，向前述的留置导管1进行输液操作。The indwelling state is that after going through the puncture state, the puncture needle 3 is pulled out from the indwelling catheter 1 by pulling the needle holder 4 after the puncture state, and the indwelling catheter 1 is in the indwelling state in the aforementioned physiological tissue. 3 and the needle base 4 communicate with each other to perform infusion operation to the aforementioned indwelling catheter 1 .
对应着前述的针座4通过一体化的方式设置输液管5。Corresponding to the aforementioned needle hub 4, the infusion tube 5 is provided in an integrated manner.
所述导管座2上设有限位结构9。The catheter base 2 is provided with a limiting structure 9 .
所述针座4的外表面一圈上设有第二卡槽10，所述第二卡槽10与所述限位结构9的端部相匹配，所述第二卡槽10与所述限位结构9的端部相结合，用于将所述限位结构9的端部卡扣在所述第二卡槽10内从而固定住所述针座4。The outer surface of the needle holder 4 is provided with a second locking groove 10 on a circle, the second locking groove 10 matches the end of the limiting structure 9, and the second locking groove 10 matches the limiting structure 9. The ends of the position-limiting structures 9 are used to buckle the ends of the position-limiting structures 9 in the second slots 10 so as to fix the needle hub 4 .
所述针座4的外表面上还设有第一卡槽8，且所述第一卡槽8和所述针翼6的尾部相匹配，所述第一卡槽8用于将所述针翼6的尾部卡扣在所述第一卡槽8内。The outer surface of the needle holder 4 is also provided with a first card slot 8, and the first card slot 8 matches the tail of the needle wing 6, and the first card slot 8 is used to insert the needle The tail of the wing 6 is buckled in the first slot 8 .
所述针翼6设有第一凹槽7，所述第一凹槽7与所述导管座2的侧端相匹配，所述第一凹槽7用于将所述针翼6卡在所述导管座2的侧端上。The needle wing 6 is provided with a first groove 7, the first groove 7 is matched with the side end of the catheter adapter 2, and the first groove 7 is used to clamp the needle wing 6 on the On the side end of the catheter adapter 2.
本实施例中，将所述针翼6往回拉时，所述穿刺针3回退至所述导管座2内部。In this embodiment, when the needle wing 6 is pulled back, the puncture needle 3 retreats to the inside of the catheter hub 2 .
如图2所示，本实施例中，使用时，手捏针翼6进行静脉穿刺，见回血并穿刺成功后，回拉针翼6并同时推进留置导管1，将穿刺针3退到导管座2的内部，此时限位结构9将会卡上针座4上的第二卡槽10，实现固定针座4作用，同时针翼6会从第一卡槽8上自然脱卸下来，接下来输液管5中液体通过针座4及穿刺针3形成的输液导通结构，向留置导管1进行输液。As shown in Figure 2, in this embodiment, when in use, pinch the needle wing 6 to perform venipuncture. After blood returns and the puncture is successful, pull back the needle wing 6 and simultaneously advance the indwelling catheter 1, and return the puncture needle 3 to the catheter base 2, at this time, the limit structure 9 will be stuck on the second slot 10 on the needle base 4 to realize the function of fixing the needle base 4, and at the same time, the needle wing 6 will be naturally detached from the first slot 8, and then the infusion The liquid in the tube 5 is infused into the indwelling catheter 1 through the transfusion conduction structure formed by the needle base 4 and the puncture needle 3 .
本实施例中，所述针座4的外表面一圈上设有与所述限位结构9的端部相匹配第二卡槽10，可以确保当转动针座4一周时，所述限位结构9的端部能够卡扣在所述针座4的外表面一圈上任何一个第二卡槽10内，从而确保针座4不会被拔出。In this embodiment, the outer surface of the needle holder 4 is provided with a second locking groove 10 matching the end of the stop structure 9, which can ensure that when the needle holder 4 is rotated for a circle, the stop The end of the structure 9 can be snapped into any second slot 10 on the outer surface of the needle holder 4, so as to ensure that the needle holder 4 will not be pulled out.
实施例2Example 2
如图3所示，本实施例包括了实施例1提供的一种安全型静脉输液针，且本实施例进一步对实施例1提供的静脉输液针进行了改进，改进之处在于：As shown in Figure 3, this embodiment includes a safe intravenous infusion needle provided in Example 1, and this embodiment further improves the intravenous infusion needle provided in Example 1, the improvements are as follows:
所述针座4的外表面一圈上还设有第二凹槽(图中未画出)，所述第二凹槽内设有弹性圈11，用于保证所述针座4的侧体与所述导管座2的侧体之间的密封性；The outer surface of the needle holder 4 is also provided with a second groove (not shown in the figure), and an elastic ring 11 is arranged in the second groove to ensure that the side body of the needle holder 4 Sealing with the side body of the catheter adapter 2;
所述导管座2内还设有密封结构(图中未画出)，可以保证留置状态下所述导管座2的密封性；The catheter adapter 2 is also provided with a sealing structure (not shown in the figure), which can ensure the tightness of the catheter adapter 2 in the indwelling state;
所述输液针还设有护帽(图中未画出)，所述护帽设置在所述留置导管1的管口上；The infusion needle is also provided with a protective cap (not shown in the figure), and the protective cap is arranged on the nozzle of the indwelling catheter 1;
所述针座4与所述穿刺针3连接的一端为穿刺针连接端12，在该穿刺针连接端12上设有通孔(图中未画出)，在留置状态下该通孔及穿刺针3构成不同输液方向的导通结构，向留置导管1进行输液，可以避免将全部液体通过单一方向输送至留置导管1，增加液体流速；One end connected between the needle base 4 and the puncture needle 3 is the puncture needle connection end 12, and a through hole (not shown in the figure) is provided on the puncture needle connection end 12. The needle 3 constitutes a conduction structure with different infusion directions, and the infusion to the indwelling catheter 1 can avoid transferring all the liquid to the indwelling catheter 1 through a single direction, increasing the flow rate of the liquid;
所述第一卡槽8的构造中包含至少一条斜边，用于快速脱落所述针翼6。The structure of the first locking groove 8 includes at least one beveled edge for quickly falling off the needle wing 6 .
本实施例中，使用时，先拿下护帽(图中未画出)，将穿刺针3穿刺到血管内，穿刺成功后，手捏针翼6往回拉，拉到一定位置时，导管座2上的限位结构9会卡在针座4上的第二卡槽10，针翼6也会从第一卡槽8上脱卸下来，此时的穿刺针3退回到导管座2内部，可以确保输液过程中，穿刺针不会刺破血管，输液结束后拔出静脉输液针，此时穿刺针3依然在导管座2内，接下来通孔(图中未画出)及穿刺针3构成不同输液方向的导通结构，向留置导管1进行输液操作，可以避免将全部液体通过单一方向输送至留置导管1，增加了液体流速。In this embodiment, when in use, first take off the protective cap (not shown in the figure), and puncture the puncture needle 3 into the blood vessel. After the puncture is successful, pinch the needle wing 6 and pull it back. The limit structure 9 on the seat 2 will be stuck in the second slot 10 on the needle base 4, and the needle wing 6 will also be disengaged from the first slot 8. At this time, the puncture needle 3 will return to the inside of the catheter base 2, It can ensure that the puncture needle will not puncture the blood vessel during the infusion. After the infusion, the venous infusion needle is pulled out. At this time, the puncture needle 3 is still in the catheter adapter 2. Next, the through hole (not shown) and the puncture needle 3 Constructing a conduction structure with different infusion directions, the infusion operation to the indwelling catheter 1 can prevent all liquid from being delivered to the indwelling catheter 1 through a single direction, and increase the flow rate of the liquid.
本实施例中，所述针座4的外表面一圈上还设有第二凹槽(图中未画出)，所述第二凹槽内设有弹性圈11，可以保证所述针座4的侧体与所述导管座2的侧体之间的密封性。In this embodiment, a second groove (not shown in the figure) is provided on the outer surface of the needle holder 4, and an elastic ring 11 is arranged in the second groove, which can ensure that the needle holder The tightness between the side body of 4 and the side body of the catheter adapter 2.
所述导管座2内还设有密封结构(图中未画出)，可以保证留置状态下所述导管座2的密封性。The catheter adapter 2 is also provided with a sealing structure (not shown in the figure), which can ensure the tightness of the catheter adapter 2 in the indwelling state.
所述第一卡槽8的构造中包含至少一条斜边，可以快速脱落所述针翼6。The structure of the first locking groove 8 includes at least one beveled edge, which can quickly fall off the needle wing 6 .
实施例3Example 3
本实施例包括了实施例2提供的一种安全型静脉输液针，且本实施例进一步对实施例2提供的静脉输液针进行了改进，改进之处在于：This embodiment includes a safe intravenous infusion needle provided in Example 2, and this embodiment further improves the intravenous infusion needle provided in Example 2, the improvements are as follows:
所述针座4的外表面上设有两个所述第一卡槽8，所述输液针设有两个所述针翼6，且两个所述第一卡槽8与两个所述针翼6分别相互对应；The outer surface of the needle base 4 is provided with two first card slots 8, the infusion needle is provided with two needle wings 6, and the two first card slots 8 are connected with the two The needle wings 6 correspond to each other respectively;
所述穿刺针3的外径为0.3mm-1.2mm；The outer diameter of the puncture needle 3 is 0.3mm-1.2mm;
所述留置导管1的长度为1.5cm-3cm；The length of the indwelling catheter 1 is 1.5cm-3cm;
所述导管座2为透明状。The catheter adapter 2 is transparent.
本实施例中，所述穿刺针3的外径为0.45mm，所述导管1的长度为2.5cm。In this embodiment, the outer diameter of the puncture needle 3 is 0.45 mm, and the length of the catheter 1 is 2.5 cm.
本实施例中，设有两个所述第一卡槽8和与之配对的两个所述针翼6，可以作为一备一用，增加静脉输液针的使用寿命。In this embodiment, there are two first card slots 8 and two needle wings 6 paired with them, which can be used as one for backup and one for use, so as to increase the service life of the intravenous infusion needle.
在本发明提及的所有文献都在本申请中引用作为参考，就如同每一篇文献被单独引用作为参考那样。此外应理解，在阅读了本发明的上述讲授内容之后，本领域技术人员可以对本发明作各种改动或修改，这些等价形式同样落于本申请所附权利要求书所限定的范围。All documents mentioned in this application are incorporated by reference in this application as if each were individually incorporated by reference. In addition, it should be understood that after reading the above teaching content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511019395.0ACN106924839A (en) | 2015-12-30 | 2015-12-30 | A kind of safe intravenous infusion needle and its implementation |
| PCT/CN2016/097725WO2017113852A1 (en) | 2015-12-30 | 2016-08-31 | Medical catheter assembly with non-detachable puncture needle |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511019395.0ACN106924839A (en) | 2015-12-30 | 2015-12-30 | A kind of safe intravenous infusion needle and its implementation |
| Publication Number | Publication Date |
|---|---|
| CN106924839Atrue CN106924839A (en) | 2017-07-07 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511019395.0APendingCN106924839A (en) | 2015-12-30 | 2015-12-30 | A kind of safe intravenous infusion needle and its implementation |
| Country | Link |
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| CN (1) | CN106924839A (en) |
| WO (1) | WO2017113852A1 (en) |
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| CB02 | Change of applicant information | Address after:225000, Tongxin County, Yangzhou Town, Guangling District, Jiangsu Applicant after:Jiangsu Weimao Medical Technology Co.,Ltd. Applicant after:Zou Zui Address before:225109 Tongxin West Road, Touqiao Town, Yangzhou City, Jiangsu Province Applicant before:JIANGSU YANG PU MEDICAL TECHNOLOGY Co.,Ltd. Applicant before:Zou Zui | |
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| TA01 | Transfer of patent application right | Effective date of registration:20200106 Address after:200003 building 6, hospital building, Changzheng Hospital, 415 Fengyang Road, Shanghai, Huangpu District Applicant after:Zou Zui Address before:225000, Tongxin County, Yangzhou Town, Guangling District, Jiangsu Applicant before:Jiangsu Weimao Medical Technology Co.,Ltd. Applicant before:Zou Zui | |
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| TA01 | Transfer of patent application right | Effective date of registration:20221205 Address after:6th Floor, Emergency Department, Changzheng Hospital, No. 415, Fengyang Road, Huangpu District, Shanghai, 200003 Applicant after:SHANGHAI CHANGZHENG Hospital Address before:200003 6th floor, inpatient building, Changzheng Hospital, 415 Fengyang Road, Huangpu District, Shanghai Applicant before:Zou Zui | |
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | Application publication date:20170707 |