CN211584646U - Transparent remaining needle with positive pressure air bag - Google Patents
Transparent remaining needle with positive pressure air bagDownload PDFInfo
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- CN211584646U CN211584646UCN202020040266.XUCN202020040266UCN211584646UCN 211584646 UCN211584646 UCN 211584646UCN 202020040266 UCN202020040266 UCN 202020040266UCN 211584646 UCN211584646 UCN 211584646U
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Abstract
Description
Translated fromChinese技术领域technical field
本实用新型涉及医疗器材技术领域，更具体地说，它涉及一种带正压气囊的透明留置针。The utility model relates to the technical field of medical equipment, in particular to a transparent indwelling needle with a positive pressure airbag.
背景技术Background technique
留置针是护理工作中的常用医疗器械，具有使用方便，减少对患者穿刺次数的作用，从而也减少了临床输液时反复穿刺，降低了病人的穿刺痛苦以及临床护理人员的工作量，因而在当今的临床中已经获得广泛应用。现有的留置针分为Y型和直型，由于Y型方便，我国普遍使用Y型的留置针；而直型的留置针操作麻烦，但形成血栓的机率比Y型的留置针低，国外普遍使用直型的留置针。Indwelling needle is a commonly used medical device in nursing work. It is easy to use and reduces the number of punctures for patients, thereby reducing the repeated puncturing during clinical infusion, reducing the pain of puncturing for patients and the workload of clinical nurses. has been widely used in clinical practice. The existing indwelling needles are divided into Y-type and straight-type. Due to the convenience of the Y-type, the Y-type indwelling needle is generally used in my country; while the straight-type indwelling needle is troublesome to operate, but the probability of thrombosis is lower than that of the Y-type indwelling needle. Straight indwelling needles are commonly used.
现有的Y型留置针一般包括穿刺针、留置针管、留置针管座和与留置针管座侧壁连接的延长导液管。在使用过程中，使用者首先将穿刺针连同留置针管插入患者的注射位置，然后，通过穿刺针导引将留置针管导入患者血管，最后，将穿刺针抽出，使留置针管留在患者血管中，并用敷贴贴膜固定。最后，将输液管的出液端穿设于留置针管内进行点滴。The existing Y-shaped indwelling needle generally includes a puncture needle, an indwelling needle tube, an indwelling needle tube seat, and an extended catheter connected to the side wall of the indwelling needle tube seat. During use, the user first inserts the puncture needle together with the indwelling needle tube into the patient's injection site, then guides the indwelling needle tube into the patient's blood vessel through the puncture needle, and finally withdraws the puncture needle to leave the indwelling needle tube in the patient's blood vessel, And fix it with an applicator film. Finally, thread the liquid outlet end of the infusion tube into the indwelling needle tube for dripping.
现有技术中的留置针在留置期间，都可能产生血栓，为此，有关操作规程中都规定，每6至8小时用生理盐水冲管一次，并用抗凝剂封管。为解决上述问题，近年来出现了正压接头和防逆流装置的专利产品，但现有的正压接头和防逆流装置结构复杂，且大多留置针管座为非透明状态，在输液完成进行封管后，时常会出现少量的血液回流至留置针管座内部位置处，病人和医护人员难以察觉，且难以使少量回血流入患者血管内，使得该少量回血容易在留置针管座位置处形成血栓，对患者造成不利影响。The indwelling needles in the prior art may produce thrombus during the indwelling period. For this reason, it is stipulated in the relevant operating procedures that the tube is flushed with physiological saline every 6 to 8 hours, and the tube is sealed with an anticoagulant. In order to solve the above problems, patented products of positive pressure joints and anti-reverse flow devices have appeared in recent years, but the existing positive pressure joints and anti-reverse flow devices have complex structures, and most of the indwelling needle tube holders are in a non-transparent state, and the tube is sealed after the infusion is completed. After that, a small amount of blood will often return to the inner position of the indwelling needle tube seat, which is difficult for patients and medical staff to detect, and it is difficult to make a small amount of blood flow back into the patient's blood vessels, which makes the small amount of blood flow back into the indwelling needle tube seat. adversely affect patients.
实用新型内容Utility model content
本实用新型的目的是提供一种带正压气囊的透明留置针，能够清楚地观察到患者血管回流至留置针内的少量血液，并通过挤压充气气囊将回流的少量血液挤入患者血管内，从而防止患者血管回至留置针内的血液形成血栓对患者造成不利影响。The purpose of the utility model is to provide a transparent indwelling needle with a positive pressure airbag, which can clearly observe a small amount of blood flowing back into the indwelling needle from the patient's blood vessel, and squeeze the backflowing small amount of blood into the patient's blood vessel by squeezing the inflatable airbag , thereby preventing the blood of the patient's blood vessel returning to the indwelling needle from forming a thrombus and causing adverse effects on the patient.
本实用新型的上述技术目的是通过以下技术方案得以实现的：一种带正压气囊的透明留置针，包括留置针管、插接于留置针管内腔的穿刺针，所述穿刺针的穿刺端位于留置针管端部外；所述留置针管远离穿刺针穿刺端的端部连接有透明的Y形导管座，所述Y形导管座包括第一腔室和第二腔室；所述第一腔室内设有密封件，所述穿刺针远离留置针管的尾部贯穿密封件位于第一腔室的端部，所述穿刺针尾部连接有位于第一腔室外的针座；所述第二腔室远离第一腔室的端部连接有延长导液管；所述延长导液管的端部连接有正压接头；所述延长导液管靠近第二腔室端部的外壁设有与延长导液管内部相通的连接管；所述连接管的端部连接有充气气囊；所述连接管靠近延长导液管的外壁设有第一控制阀；所述第二腔室外壁设有与第二腔室连通的导气管；所述导气管靠近第二腔室外壁的第二控制阀；所述导气管与第二腔室连接处设有位于导气管内部的防水透气膜。The above technical purpose of the present utility model is achieved through the following technical solutions: a transparent indwelling needle with a positive pressure airbag, comprising an indwelling needle tube, a puncture needle inserted into the inner cavity of the indwelling needle tube, and the puncture end of the puncture needle is located at Outside the end of the indwelling needle tube; the end of the indwelling needle tube away from the puncture end of the puncture needle is connected with a transparent Y-shaped catheter seat, the Y-shaped catheter seat includes a first chamber and a second chamber; the first chamber is provided with There is a seal, the tail of the puncture needle away from the indwelling needle tube passes through the end of the seal and is located at the end of the first chamber, the tail of the puncture needle is connected with a needle seat located outside the first chamber; the second chamber is far away from the first chamber The end of the chamber is connected with an extension catheter; the end of the extension catheter is connected with a positive pressure joint; the outer wall of the extension catheter close to the end of the second chamber is provided with an interior of the extension catheter Connecting pipes that communicate with each other; an inflatable air bag is connected to the end of the connecting pipe; a first control valve is arranged on the outer wall of the connecting pipe close to the extension catheter; the outer wall of the second chamber is connected with the second chamber The air guide pipe; the air guide pipe is close to the second control valve on the outer wall of the second chamber; the connection between the air guide pipe and the second chamber is provided with a waterproof and breathable membrane inside the air guide pipe.
通过采用上述技术方案，在采用该留置针对患者进行静脉输液的过程中，首先进行注射前的消毒工作，然后通过正压接头，使该留置针与输液器连接；通过穿刺针，便于穿刺入患者血管内，并将留置软管带入患者血管内；当留置软管位于患者血管后，将穿刺针退去，并采用透明的医用胶布将透明的留置针管座稳定固定于患者皮肤表面；通过密封件，便于取出穿刺针后将第一腔室进行密封；通过延长导液管，便于将输液器输送的药液传输至透明的Y形导管座，在经过留置针管输入至患者血管内；在输液结束进行封管操作后，当患者血管有少量的回血逆流至透明的Y形导管座内部位置处时，封闭延长导液管，打开连接管上的第一控制阀，然后用手挤压充气气囊，使充气气囊中的气体经过连接管进入Y形导管座，将回流至Y形导管座内部的少量血液挤入患者血管，并关闭第一控制阀，从而防止回流至Y形导管座内部的少量血液产生血栓；当需再次对患者进行输液时，打开第二控制阀，便于延长导液管及Y形导管座内的气体的排出；通过防水透气膜，便于在排出气体的同时，防止药液从导液管排出；通过该留置针，能够清楚地观察到患者血管回流至留置针内的少量血液，并通过挤压充气气囊将回流的少量血液挤入患者血管内，从而防止患者血管回至留置针内的血液形成血栓对患者造成不利影响。By adopting the above technical solution, in the process of using the indwelling for intravenous infusion of the patient, the disinfection work before injection is firstly carried out, and then the indwelling needle is connected to the infusion set through the positive pressure joint; Into the blood vessel, and bring the indwelling tube into the patient's blood vessel; when the indwelling tube is located in the patient's blood vessel, the puncture needle is withdrawn, and the transparent medical tape is used to stably fix the transparent indwelling needle tube seat on the patient's skin surface; through the seal , it is convenient to seal the first chamber after taking out the puncture needle; by extending the catheter, it is convenient to transfer the liquid delivered by the infusion set to the transparent Y-shaped catheter seat, and then enter the patient's blood vessel through the indwelling needle; at the end of the infusion After the tube sealing operation, when there is a small amount of blood backflow from the patient's blood vessel to the inner position of the transparent Y-shaped catheter holder, the extension catheter is closed, the first control valve on the connecting tube is opened, and then the inflatable balloon is squeezed by hand. Make the gas in the inflatable balloon enter the Y-shaped catheter seat through the connecting tube, squeeze a small amount of blood back to the inside of the Y-shaped catheter seat into the patient's blood vessel, and close the first control valve to prevent a small amount of blood flowing back into the Y-shaped catheter seat. When the patient needs to be infused again, open the second control valve to facilitate the discharge of the gas in the extended catheter and the Y-shaped catheter seat; The catheter is discharged; through the indwelling needle, a small amount of blood returning from the patient's blood vessel to the indwelling needle can be clearly observed, and the small amount of blood returning to the patient's blood vessel is squeezed into the patient's blood vessel by squeezing the inflatable balloon, thereby preventing the patient's blood vessel from returning to the indwelling needle. The blood within the needle forms a thrombus and adversely affects the patient.
本实用新型进一步设置为：所述留置针管靠近穿刺针的穿刺端的端部设有活动瓣，所述活动瓣为在留置针管的端部沿其径向均等开设三条缝隙形成的能够进行开合的三叶瓣结构。The utility model is further provided as follows: the end of the indwelling needle tube close to the puncture end of the puncture needle is provided with a movable flap, and the movable flap is formed by equally opening three slits at the end of the indwelling needle tube along its radial direction and can be opened and closed. Tri-lobe structure.
通过采用上述技术方案，在进行输液的过程中，在留置针管内药液的冲压作用下，活动瓣(三叶瓣结构)张开，使得药液进入患者血管内；当停止输液时，留置管内无药液冲压作用，则留置针管内压力较低，活动瓣(三叶瓣结构)则闭合，从而能够防止血管内的血液回流至留置针管内。By adopting the above technical solution, during the infusion process, under the pressing action of the medicinal liquid in the indwelling needle tube, the movable valve (trileaflet valve structure) opens, so that the medicinal liquid enters the patient's blood vessels; when the infusion is stopped, the indwelling tube Without the punching effect of the liquid medicine, the pressure in the indwelling needle tube is low, and the movable valve (tri-leaflet valve structure) is closed, thereby preventing the blood in the blood vessel from flowing back into the indwelling needle tube.
本实用新型进一步设置为：所述正压接头为Y形，所述正压接头包括正压腔和导液腔，所述延长导液管的端部位于导液腔内。The utility model is further provided that: the positive pressure joint is Y-shaped, the positive pressure joint includes a positive pressure cavity and a liquid guide cavity, and the end of the extended liquid guide tube is located in the liquid guide cavity.
通过采用上述技术方案，通过正压腔，便于在输液过程或输液结束后使得延长导液管和Y形导管座内持续保持正压状态，从而防止血管内血液回流。By adopting the above technical solution, the positive pressure cavity is convenient to maintain the positive pressure state in the extension catheter and the Y-shaped catheter holder continuously during the infusion process or after the infusion, thereby preventing blood backflow in the blood vessel.
本实用新型进一步设置为：所述延长导液管外壁设有可沿延长导液管外壁滑动的止液夹。The utility model is further provided that: the outer wall of the extended catheter is provided with a liquid stop clip that can slide along the outer wall of the extended catheter.
通过采用上述技术方案，通过可沿延长导液管外壁滑动的止液夹，能够在延长导液管的各个位置对延长导液管进行封闭止流。By adopting the above technical solution, the extended liquid catheter can be sealed and stopped at various positions of the extended liquid catheter through the liquid stop clip that can slide along the outer wall of the extended liquid catheter.
本实用新型进一步设置为：所述Y形导管座端部可拆卸连接有包裹留置针管外壁的保护管。The utility model is further provided that: the end of the Y-shaped catheter holder is detachably connected with a protection tube wrapping the outer wall of the indwelling needle tube.
通过采用上述技术方案，在未使用该留置针时，通过保护管，便于对留置针管进行保护。By adopting the above technical solution, when the indwelling needle is not in use, the protection tube is convenient to protect the indwelling needle tube.
本实用新型进一步设置为：所述针座端部固定连接有持针柄。The utility model is further provided that: the end of the needle seat is fixedly connected with a needle holding handle.
通过采用上述技术方案，通过持针柄，便于医护人员手持持针柄对患者血管进行穿刺和退出穿刺针的操作。By adopting the above technical solution and holding the needle handle, it is convenient for medical staff to puncture the patient's blood vessel and withdraw the puncture needle by holding the needle handle.
综上所述，本实用新型具有以下有益效果：通过穿刺针，便于穿刺入患者血管内，并将留置软管带入患者血管内；当留置软管位于患者血管后，将穿刺针退去，并采用透明的医用胶布将透明的留置针管座稳定固定于患者皮肤表面；通过密封件，便于取出穿刺针后将第一腔室进行密封；通过延长导液管，便于将输液器输送的药液传输至透明的Y形导管座，在经过留置针管输入至患者血管内；在输液结束进行封管操作后，当患者血管有少量的回血逆流至透明的Y形导管座内部位置处时，封闭延长导液管，打开连接管上的第一控制阀，然后用手挤压充气气囊，使充气气囊中的气体经过连接管进入Y形导管座，将回流至Y形导管座内部的少量血液挤入患者血管，并关闭第一控制阀，从而防止回流至Y形导管座内部的少量血液产生血栓；当需再次对患者进行输液时，打开第二控制阀，便于延长导液管及Y形导管座内的气体的排出；通过防水透气膜，便于在排出气体的同时，防止药液从导液管排出；通过该留置针，能够清楚地观察到患者血管回流至留置针内的少量血液，并通过挤压充气气囊将回流的少量血液挤入患者血管内，从而防止患者血管回至留置针内的血液形成血栓对患者造成不利影响。To sum up, the utility model has the following beneficial effects: through the puncture needle, it is convenient to puncture into the blood vessel of the patient, and the indwelling hose is brought into the blood vessel of the patient; when the indwelling hose is located in the blood vessel of the patient, the puncture needle is withdrawn, and the The transparent indwelling needle tube seat is stably fixed on the skin surface of the patient by using a transparent medical tape; the first chamber is easily sealed after removing the puncture needle through the sealing element; by extending the catheter, it is convenient to transfer the liquid medicine delivered by the infusion set To the transparent Y-shaped catheter holder, it is infused into the patient's blood vessel through the indwelling needle; after the tube sealing operation is performed at the end of the infusion, when the patient's blood vessel has a small amount of blood backflow to the internal position of the transparent Y-shaped catheter holder, the extended catheter is closed and extended. liquid pipe, open the first control valve on the connecting pipe, and then squeeze the inflatable balloon by hand, so that the gas in the inflatable balloon enters the Y-shaped catheter seat through the connecting pipe, and squeezes a small amount of blood returning to the inside of the Y-shaped catheter seat into the patient. blood vessel, and close the first control valve to prevent a small amount of blood returning to the inside of the Y-shaped catheter seat from causing thrombosis; when the patient needs to be infused again, open the second control valve to facilitate the extension of the catheter and the inside of the Y-shaped catheter seat. Through the waterproof and breathable membrane, it is convenient to prevent the liquid from being discharged from the catheter while expelling the gas; through the indwelling needle, a small amount of blood returning from the patient's blood vessels to the indwelling needle can be clearly observed, and through squeezing The compressed air balloon squeezes a small amount of backflowing blood into the patient's blood vessel, thereby preventing the blood from the patient's blood vessel returning to the indwelling needle from forming a thrombus and adversely affecting the patient.
附图说明Description of drawings
图1是本实用新型实施例中结构示意图；Fig. 1 is the structural representation in the embodiment of the present utility model;
图2是本实用新型实施例中留置针管端部活动瓣的结构示意图；Fig. 2 is the structural representation of the movable valve at the end of the indwelling needle tube in the embodiment of the present invention;
图3是本实用新型实施例中活动瓣打开状态结构示意图。3 is a schematic structural diagram of the open state of the movable valve in the embodiment of the present invention.
图中：1、留置针管；2、穿刺针；3、Y形导管座；4、第一腔室；5、第二腔室；6、密封件；7、针座；8、延长导液管；9、正压接头；10、连接管；11、充气气囊；12、第一控制阀；13、导气管；14、第二控制阀；15、防水透气膜；16、活动瓣；17、正压腔；18、导液腔；19、止液夹；20、保护管；21、持针柄。In the figure: 1. Indwelling needle tube; 2. Puncture needle; 3. Y-shaped catheter holder; 4. First chamber; 5. Second chamber; 6. Sealing member; 7. Needle seat; 8. Extension catheter ;9, positive pressure joint; 10, connecting pipe; 11, inflatable air bag; 12, first control valve; 13, airway; 14, second control valve; 15, waterproof and breathable membrane; 16, movable flap; 17, positive pressure chamber; 18, catheterization chamber; 19, liquid stop clip; 20, protection tube; 21, needle handle.
具体实施方式Detailed ways
以下结合附图1-3对本实用新型作进一步详细说明。The present utility model will be described in further detail below in conjunction with accompanying drawings 1-3.
实施例：一种带正压气囊的透明留置针，如图1、图2和图3所示，包括留置针管1、插接于留置针管1内腔的穿刺针2，穿刺针2的穿刺端位于留置针管1端部外。留置针管1远离穿刺针2穿刺端的端部连接有透明的Y形导管座3，Y形导管座3包括第一腔室4和第二腔室5。第一腔室4内安装有密封件6，穿刺针2远离留置针管1的尾部贯穿密封件6位于第一腔室4的端部，穿刺针2尾部连接有位于第一腔室4外的针座7。第二腔室5远离第一腔室4的端部连接有延长导液管8。延长导液管8的端部连接有正压接头9。延长导液管8靠近第二腔室5端部的外壁一体成型有与延长导液管8内部相通的连接管10。连接管10的端部连接有充气气囊11。连接管10靠近延长导液管8的外壁安装有第一控制阀12。第二腔室5外壁一体成型有与第二腔室5连通的导气管13。导气管13靠近第二腔室5外壁的第二控制阀14。导气管13与第二腔室5连接处安装有位于导气管13内部的防水透气膜15。Example: a transparent indwelling needle with a positive pressure balloon, as shown in Figures 1, 2 and 3, comprising an indwelling
在本实施例中，留置针管1、Y形导管座3和延长导液管8均为透明状态。利用透明的Y形导管座3，能够清楚直观得观察到血管内血液回流至Y形导管座3内的位置。充气气囊11设置有能够密封的充气口(在图中未画出)，利用该充气口，能够对充气气囊11进行充气。充气气囊11在采用该留置针对患者进行静脉输液的过程中，首先进行注射前的消毒工作，然后通过正压接头9，使该留置针与输液器连接。通过穿刺针2，便于穿刺入患者血管内，并将留置软管带入患者血管内。当留置软管位于患者血管后，将穿刺针2退去，并采用透明的医用胶布将透明的留置针管1座稳定固定于患者皮肤表面。通过密封件6，便于取出穿刺针2后将第一腔室4进行密封。通过延长导液管8，便于将输液器输送的药液传输至透明的Y形导管座3，在经过留置针管1输入至患者血管内。在输液结束进行封管操作后，当患者血管有少量的回血逆流至透明的Y形导管座3内部位置处时，封闭延长导液管8，打开连接管10上的第一控制阀12，然后用手挤压充气气囊11，使充气气囊11中的气体经过连接管10进入Y形导管座3，将回流至Y形导管座3内部的少量血液挤入患者血管，并关闭第一控制阀12，从而防止回流至Y形导管座3内部的少量血液产生血栓。当需再次对患者进行输液时，打开第二控制阀14，便于延长导液管8及Y形导管座3内的气体的排出。通过防水透气膜15，便于在排出气体的同时，防止药液从导液管排出。通过该留置针，能够清楚地观察到患者血管回流至留置针内的少量血液，并通过挤压充气气囊11将回流的少量血液挤入患者血管内，从而防止患者血管回至留置针内的血液形成血栓对患者造成不利影响。In this embodiment, the indwelling
留置针管1靠近穿刺针2的穿刺端的端部加工有活动瓣16，活动瓣16为在留置针管1的端部沿其径向均等开设三条缝隙形成的能够进行开合的三叶瓣结构。The end of the
在本实施例中，在进行输液的过程中，在留置针管1内药液的冲压作用下，活动瓣16(三叶瓣结构)张开，使得药液进入患者血管内。当停止输液时，留置管内无药液冲压作用，则留置针管1内压力较低，活动瓣16(三叶瓣结构)则闭合，从而能够防止血管内的血液回流至留置针管1内。In this embodiment, during the infusion process, under the punching action of the medicinal liquid in the
正压接头9为Y形，正压接头9包括正压腔17和导液腔18，延长导液管8的端部位于导液腔18内。The positive pressure joint 9 is Y-shaped, and the positive pressure joint 9 includes a
在本实施例中，通过正压腔17，便于在输液过程或输液结束后使得延长导液管8和Y形导管座3内持续保持正压状态，从而防止血管内血液回流。In this embodiment, the
延长导液管8外壁安装有可沿延长导液管8外壁滑动的止液夹19。The outer wall of the
在本实施例中，通过可沿延长导液管8外壁滑动的止液夹19，能够在延长导液管8的各个位置对延长导液管8进行封闭止流。In this embodiment, the
Y形导管座3端部可拆卸连接有包裹留置针管1外壁的保护管20。A
在本实施例中，在未使用该留置针时，通过保护管20，便于对留置针管1进行保护。In this embodiment, when the indwelling needle is not in use, the
针座7端部固定连接有持针柄21。The
在本实施例中，通过持针柄21，便于医护人员手持持针柄21对患者血管进行穿刺和退出穿刺针2的操作。In this embodiment, by holding the
工作原理：在采用该留置针对患者进行静脉输液的过程中，首先进行注射前的消毒工作，然后通过正压接头9，使该留置针与输液器连接。通过穿刺针2，便于穿刺入患者血管内，并将留置软管带入患者血管内。当留置软管位于患者血管后，将穿刺针2退去，并采用透明的医用胶布将透明的留置针管1座稳定固定于患者皮肤表面。通过密封件6，便于取出穿刺针2后将第一腔室4进行密封。通过延长导液管8，便于将输液器输送的药液传输至透明的Y形导管座3，在经过留置针管1输入至患者血管内。在输液结束进行封管操作后，当患者血管有少量的回血逆流至透明的Y形导管座3内部位置处时，封闭延长导液管8，打开连接管10上的第一控制阀12，然后用手挤压充气气囊11，使充气气囊11中的气体经过连接管10进入Y形导管座3，将回流至Y形导管座3内部的少量血液挤入患者血管，并关闭第一控制阀12，从而防止回流至Y形导管座3内部的少量血液产生血栓。当需再次对患者进行输液时，打开第二控制阀14，便于延长导液管8及Y形导管座3内的气体的排出。通过防水透气膜15，便于在排出气体的同时，防止药液从导液管排出。通过该留置针，能够清楚地观察到患者血管回流至留置针内的少量血液，并通过挤压充气气囊11将回流的少量血液挤入患者血管内，从而防止患者血管回至留置针内的血液形成血栓对患者造成不利影响。Working principle: In the process of using the indwelling indwelling for intravenous infusion of the patient, the disinfection work before injection is first performed, and then the indwelling needle is connected to the infusion set through the positive pressure joint 9 . Through the
本具体实施例仅仅是对本实用新型的解释，其并不是对本实用新型的限制，本领域技术人员在阅读完本说明书后可以根据需要对本实施例做出没有创造性贡献的修改，但只要在本实用新型的权利要求范围内都受到专利法的保护。This specific embodiment is only an explanation of the present utility model, and it is not a limitation of the present utility model. Those skilled in the art can make modifications to the present embodiment without creative contribution as needed after reading this specification, but as long as the utility model is used in the present invention All new types of claims are protected by the patent law.
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| CN202020040266.XUCN211584646U (en) | 2020-01-09 | 2020-01-09 | Transparent remaining needle with positive pressure air bag |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113181474A (en)* | 2021-05-07 | 2021-07-30 | 中国人民解放军陆军军医大学第一附属医院 | Safe type nondestructive puncture needle for infusion port |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113181474A (en)* | 2021-05-07 | 2021-07-30 | 中国人民解放军陆军军医大学第一附属医院 | Safe type nondestructive puncture needle for infusion port |
| CN113181474B (en)* | 2021-05-07 | 2022-08-02 | 中国人民解放军陆军军医大学第一附属医院 | Safe type nondestructive puncture needle for infusion port |
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