CN204684348U - an indwelling needle - Google Patents
an indwelling needle Download PDFInfo
- Publication number
- CN204684348U CN204684348U CN201520259365.6U CN201520259365U CN204684348U CN 204684348 U CN204684348 U CN 204684348U CN 201520259365 U CN201520259365 U CN 201520259365U CN 204684348 U CN204684348 U CN 204684348U
- Authority
- CN
- China
- Prior art keywords
- indwelling needle
- diameter cavity
- cavity
- rubber plug
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000003814 drug Substances 0.000 claims abstract description 12
- 238000001802 infusion Methods 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 239000010985 leather Substances 0.000 claims abstract description 3
- 230000007423 decrease Effects 0.000 claims description 3
- 239000008280 blood Substances 0.000 abstract description 6
- 210000004369 blood Anatomy 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 9
- 210000004204 blood vessel Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229960002897 heparin Drugs 0.000 description 1
- 229920000669 heparin Polymers 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
技术领域 technical field
本实用新型属于医疗设备技术领域，具体涉及一种输液用留置针。 The utility model belongs to the technical field of medical equipment, in particular to an indwelling needle for transfusion.
背景技术 Background technique
输液几乎可将所有药液通过血管输入人体，是西安治疗和预防疾病的目的，临床中，为避免多次穿刺造成血管的损伤及减少病人的痛苦，也为减轻医护人员的操作强度，已普遍使用了动脉留置针技术。现在临床使用的动留置针技术大多是肝素密封帽、穿刺针、穿刺针座、留置针软管、留置针座、留置针保护套组成，在使用的过程中需要肝素帽最留置针管进行封闭，同时在输液的过程中需要使用针刺连接，这样无形中增加了护士的工作量，同时也存在医护人员被针刺误伤的危险性。 Infusion can inject almost all the medicinal liquid into the human body through the blood vessels, which is the purpose of treating and preventing diseases in Xi'an. In clinical practice, in order to avoid the damage of blood vessels caused by multiple punctures and reduce the pain of patients, and also to reduce the operating intensity of medical staff, it has become a common practice. An arterial catheter technique was used. Most of the dynamic indwelling needle technology used clinically is composed of heparin sealing cap, puncture needle, puncture needle seat, indwelling needle hose, indwelling needle seat, and indwelling needle protective cover. At the same time, acupuncture connections are needed during the infusion process, which increases the workload of nurses virtually, and there is also the risk of medical personnel being accidentally injured by needles.
实用新型内容 Utility model content
本实用新型要解决的技术问题是提供一种既能防止回血又能避免误伤医护人员的安全留置针。 The technical problem to be solved by the utility model is to provide a safe indwelling needle that can prevent blood return and avoid accidentally injuring medical personnel.
为解决上述技术问题，本实用新型采用的技术方案为：一种留置针，包括留置针座和留置针软管，所述的留置针座内设置有空腔，该空腔包括靠近留置针软管一端的大直径空腔和设置于大直径空腔一侧的小直径空腔；所述的留置针座的空腔内设置有圆柱状橡胶塞，该橡胶塞的一端与小直径空腔过盈配合且伸出留置针座外，另一端设置在大直径空腔内，且固定连接有弹簧安装座；所述橡胶塞上半部分设置有药液流道，药液流道的侧壁上设置有通孔；所述橡胶塞通过压缩弹簧与弹簧安装座连接；所述小直径空腔外周的留置针座上设置有与输液皮条连接座的内螺纹连接的外螺纹； In order to solve the above technical problems, the technical solution adopted by the utility model is: an indwelling needle, including an indwelling needle holder and an indwelling needle hose, a cavity is provided in the indwelling needle holder, and the cavity includes a soft A large-diameter cavity at one end of the tube and a small-diameter cavity arranged on one side of the large-diameter cavity; a cylindrical rubber stopper is arranged in the cavity of the indwelling needle holder, and one end of the rubber stopper is passed through the small-diameter cavity. The other end is set in the large-diameter cavity, and is fixedly connected with a spring mounting seat; the upper part of the rubber plug is provided with a liquid medicine flow channel, and the side wall of the liquid medicine flow channel A through hole is provided; the rubber plug is connected to the spring mounting seat through a compression spring; the indwelling needle seat on the outer periphery of the small-diameter cavity is provided with an external thread connected with the internal thread of the infusion leather strap connection seat;
所述大直径空腔内设置有环形支架，环形支架的前端设置有外周与大直径空腔内壁连接的圆形薄膜，该圆形薄膜的外周能够与环形支架紧密贴合，圆形薄膜的外周上设置有十字切口。 The large-diameter cavity is provided with a ring-shaped support, and the front end of the ring-shaped support is provided with a circular film whose outer circumference is connected to the inner wall of the large-diameter cavity. The outer circumference of the circular film can be closely attached to the annular support. There are cross cuts on it.
进一步地，所述的药液通道侧壁上沿周向均匀设置有4个通孔。 Further, four through holes are uniformly arranged on the side wall of the liquid medicine channel along the circumferential direction.
进一步地，所述的留置针软管的管壁上设置有直径自管壁外侧至管壁内侧逐渐减小的气孔。 Further, the tube wall of the indwelling needle tube is provided with air holes whose diameter gradually decreases from the outside of the tube wall to the inside of the tube wall.
本实用新型的有益效果：本实用新型的留置针能够直接与输液皮条的连接座连接，无需用钢针穿刺，橡胶塞能够堵住留置针座的空腔，防止穿刺留置针时血液回流；空腔内设置的圆形薄膜进一步保证留置针的使用安全，留置针软管上的气孔改进能够减轻刺激性药物对留置针穿刺处血管及皮肤的刺激，并且可以预防留置针堵管的发生。 Beneficial effects of the utility model: the indwelling needle of the utility model can be directly connected with the connecting seat of the transfusion thong without needing to puncture with a steel needle, and the rubber plug can block the cavity of the indwelling needle seat to prevent blood backflow when the indwelling needle is punctured; The circular film set in the cavity further ensures the safe use of the indwelling needle, and the improvement of the pores on the indwelling needle hose can reduce the irritation of irritating drugs on the blood vessels and skin at the puncture site of the indwelling needle, and can prevent the occurrence of clogging of the indwelling needle.
附图说明 Description of drawings
图1为本实用新型的结构示意图。 Fig. 1 is the structural representation of the utility model.
图2为本实用新型的橡胶塞的结构示意图。 Fig. 2 is a schematic structural view of the rubber stopper of the present invention.
图3为本实用新型的圆形薄膜的结构示意图。 Fig. 3 is a schematic structural view of the circular thin film of the present invention.
图4为A的局部放大图。 Figure 4 is a partial enlarged view of A.
具体实施方式 Detailed ways
下面结合附图对本实用新型的技术方案作详细说明。 Below in conjunction with accompanying drawing, the technical solution of the utility model is described in detail.
一种留置针，包括留置针座1和留置针软管2，留置针座1内设置有空腔，该空腔包括靠近留置针软管2一端的大直径空腔3和设置于大直径空腔3一侧的小直径空腔4；留置针座1的空腔内设置有圆柱状橡胶塞5，该橡胶塞5的一端与小直径空腔4过盈配合且伸出留置针座1外，另一端设置在大直径空腔3内，且固定连接有弹簧安装座6；橡胶塞5上半部分设置有药液流道7，药液流道7的侧壁上设置有通孔8；橡胶塞5通过压缩弹簧9与弹簧安装座6连接；小直径空腔4外周的留置针座1上设置有与输液皮条连接座的内螺纹连接的外螺纹10。 An indwelling needle, comprising an indwelling needle base 1 and an indwelling needle hose 2, a cavity is arranged in the indwelling needle base 1, and the cavity includes a large-diameter cavity 3 near one end of the indwelling needle hose 2 and a large-diameter cavity A small-diameter cavity 4 on one side of the cavity 3; a cylindrical rubber plug 5 is arranged in the cavity of the indwelling needle hub 1, and one end of the rubber plug 5 interferes with the small-diameter cavity 4 and extends out of the indwelling needle hub 1 , the other end is set in the large-diameter cavity 3, and is fixedly connected with a spring mounting seat 6; the upper half of the rubber plug 5 is provided with a liquid medicine flow channel 7, and the side wall of the liquid medicine flow channel 7 is provided with a through hole 8; The rubber stopper 5 is connected to the spring mounting seat 6 through the compression spring 9; the indwelling needle seat 1 on the outer periphery of the small-diameter cavity 4 is provided with an external thread 10 connected with the internal thread of the transfusion thong connection seat.
大直径空腔3内设置有环形支架11，环形支架11的前端设置有外周与大直径空腔3内壁连接的圆形薄膜12，该圆形薄膜12的外周能够与环形支架11紧密贴合，圆形薄膜12的外周上设置有十字切口13。 The large-diameter cavity 3 is provided with an annular support 11, and the front end of the annular support 11 is provided with a circular film 12 whose outer circumference is connected to the inner wall of the large-diameter cavity 3. The outer circumference of the circular film 12 can be closely attached to the annular support 11, A cross cut 13 is provided on the outer periphery of the circular film 12 .
在本实施方式中，药液通道7侧壁上沿周向均匀设置有4个通孔8。 In this embodiment, four through holes 8 are uniformly arranged on the side wall of the liquid medicine channel 7 along the circumferential direction.
在本实施方式中，留置针软管2的管壁上设置有直径自管壁外侧至管壁内侧逐渐减小的气孔14。 In this embodiment, the tube wall of the indwelling needle tube 2 is provided with an air hole 14 whose diameter gradually decreases from the outside of the tube wall to the inside of the tube wall.
本实用新型的留置针使用时首先进行穿刺，拔出钢针，由于留置针座内的橡胶塞5和圆形薄膜12的设置，避免了穿刺后血液回流，然后将输液皮条的连接座与留置针座1连接，输液皮条的连接座的中空管道将橡胶塞5推向留置针座1的空腔内，药液可以从通孔8流出，在药液正压的作用下，圆形薄膜12上的十字切口13打开，药液流入留置针软管2内，当出现血液回流时，圆形薄膜12上的十字切口13贴紧环形支架11，十字切口13不能被打开，从而阻止了血液回流。 When the indwelling needle of the utility model is used, first puncture is carried out, and the steel needle is pulled out. Due to the setting of the rubber plug 5 and the circular film 12 in the indwelling needle seat, blood backflow after the puncture is avoided, and then the connecting seat of the infusion thong is connected with the indwelling needle. The needle base 1 is connected, and the hollow pipe of the connection seat of the infusion thong pushes the rubber plug 5 into the cavity where the needle base 1 is retained, and the medicinal liquid can flow out from the through hole 8. Under the positive pressure of the medicinal liquid, the circular film 12 The cross cut 13 on the top is opened, and the medicinal liquid flows into the indwelling needle hose 2. When blood backflow occurs, the cross cut 13 on the circular film 12 is close to the annular bracket 11, and the cross cut 13 cannot be opened, thereby preventing blood backflow .
以上显示和描述了本实用新型的基本原理和主要特征和本实用新型的优点。本行业的技术人员应该了解，本实用新型不受上述实施例的限制，上述实施例和说明书中描述的只是说明本实用新型的原理，在不脱离本实用新型精神和范围的前提下，本实用新型还会有各种变化和改进，这些变化和改进都落入要求保护的本实用新型范围内。本实用新型要求保护范围由所附的权利要求书及其等效物界定。 The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520259365.6U CN204684348U (en) | 2015-04-27 | 2015-04-27 | an indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520259365.6U CN204684348U (en) | 2015-04-27 | 2015-04-27 | an indwelling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204684348U true CN204684348U (en) | 2015-10-07 |
Family
ID=54224692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520259365.6U Expired - Fee Related CN204684348U (en) | 2015-04-27 | 2015-04-27 | an indwelling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204684348U (en) |
-
2015
- 2015-04-27 CN CN201520259365.6U patent/CN204684348U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201200674Y (en) | Infusion device | |
| CN203227081U (en) | Implantable intravenous administration device | |
| CN205759059U (en) | Safety venous port not damaged pin puncture fixator | |
| CN203829377U (en) | Pleuroperitoneal cavity drainage system | |
| CN205252290U (en) | Two sacculus liquid receiver | |
| CN204684348U (en) | an indwelling needle | |
| CN204582151U (en) | The anti-acupuncture needleless of card form connects venous detaining needle | |
| CN204766842U (en) | Needleless infusion prevents that needle is kept somewhere to vein against current | |
| CN209136806U (en) | A kind of Internal Medicine-Cardiovascular Dept. interventional curer | |
| CN204723514U (en) | A kind of remaining needle fixing device | |
| KR102230768B1 (en) | A medical device | |
| CN205084113U (en) | Neurosurgery is with keeping somewhere needle | |
| CN204601346U (en) | A kind of arteriovenous indwelling equipment | |
| CN210872219U (en) | Mouse jugular vein indwelling cannula | |
| CN209500431U (en) | Lower resistance batching pig and lower resistance venous detaining needle | |
| CN204468965U (en) | A kind of internal fistula trocar protecting blood vessel | |
| CN102784862B (en) | Manufacturing method of puncture needle with adjustable pore diameter and puncture outfit thereof | |
| CN206630994U (en) | Catheter | |
| CN202761393U (en) | Puncture needle with bore diameter capable of being adjusted | |
| CN208145219U (en) | A kind of infusion apparatus of Anti-stabbing | |
| CN204745195U (en) | Interior liquid bag of needle file is proclaimed oneself formula vein and is kept somewhere needle | |
| CN208726435U (en) | A Needle That Reduces Infusion Puncture Swelling and Increases Comfort | |
| CN211798166U (en) | Thoracic drainage tube with three-way switch | |
| CN204446783U (en) | Paediatric IV head blood return prevention holder | |
| CN204601257U (en) | Integration indwelling combination pin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20160427 |