CN105363098A - Anti-acupuncture venous indwelling needle - Google Patents
Anti-acupuncture venous indwelling needle Download PDFInfo
- Publication number
- CN105363098A CN105363098A CN201510958397.XA CN201510958397A CN105363098A CN 105363098 A CN105363098 A CN 105363098A CN 201510958397 A CN201510958397 A CN 201510958397A CN 105363098 A CN105363098 A CN 105363098A
- Authority
- CN
- China
- Prior art keywords
- needle
- hole
- cavity
- venous indwelling
- stopper
- 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.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/60—General characteristics of the apparatus with identification means
- A61M2205/6009—General characteristics of the apparatus with identification means for matching patient with his treatment, e.g. to improve transfusion security
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/12—Blood circulatory system
Abstract
The invention relates to an anti-acupuncture venous indwelling needle. The anti-acupuncture venous indwelling needle comprises a catheter component, a needle tubing component and an infusion connector connected with the catheter component. The catheter component comprises a catheter base and a catheter. A cavity is formed in the catheter base. The needle tubing assembly comprises a needle base and a puncture needle. An anti-acupuncture component is arranged between the catheter base and the needle base and comprises a protection base internally provided with a through hole. A stop piece cavity and a lower through hole in the tail portion of the through hole are formed in the through hole. The acupuncture needle sequentially penetrates through the through hole, the cavity in the catheter base, and the catheter. A spring groove is formed in the through hole in the radial direction. A spring in the compressed state and a stop piece are arranged in the spring groove. One end of the spring abuts against the protection base, and the other end of the spring abuts against the stop piece. The stop piece can enter a cavity of the stop piece and prevent the acupuncture needle from penetrating through the through hole. The anti-acupuncture venous indwelling needle is simple in structural design, can prevent the acupuncture needle from penetrating out secondarily on the aspect of functions, effectively prevents the needle tip from puncturing medical staff, and is free of the defects of efficacy loss, deformation and blockage.
Description
Technical field
The present invention relates to infusion apparatus field, be specifically related to a kind of anti-venous indwelling needle.
Background technology
In recent years, venous detaining needle range of application constantly expands, and is now widely used in clinical Zhong Ge section office.The use of venous detaining needle can reduce misery that patient causes because of venipuncture repeatedly and to the fear of having an injection, alleviate the impatience of family members, be convenient to clinical application, alleviate the workload of nurse, reduce patient pain.The withdraw of the needle after a procedure of existing venous detaining needle, syringe needle pollute by the blood of patient, medical personnel pull away or clear up abandon remaining needle time, easily stab by syringe needle and easily catch, simultaneously discarded syringe needle is exposed easily causes environmental pollution in the environment, there is serious potential safety hazard.
Research proves that nurse is the high-risk professional colony of blood born diseases, in venipuncture, pricking wound infection risk is avoided in order to prevent nurse, anti-venous indwelling needle has been had to utilize telescopic design special device to wrap needle point at present, or the mode wrapping needle point by modes such as rustless steel shell fragment, card, intermediate plates reduces pricking wound risk, also have a kind of structure directly to utilize middle irregularity body axis decentraction to stop that needle point passes, but existing technology cannot meet zero risk of stabbing completely.
Chinese utility model patent (CN201939855U) discloses a kind of anti-venous indwelling needle, is made up of needle shield, conduit tube component, puncture needle component; Conduit tube component comprises conduit, threeway catheter block, funnel, sealing-plug, flexible pipe, threeway seat, calparine cap, end cap, clip; Puncture needle component comprises puncture needle tubing, band wing needle stand and Needlestick prevention device; Needlestick prevention device is made up of connector, hollow sliding sleeve and sealed button.Chinese utility model patent (CN203169724U) discloses a kind of single use safe type retention needle, comprises catheter block and needle stand, is provided with anti-acupuncture and protects assembly between described catheter block and needle stand; Described anti-acupuncture protection assembly comprises protecting seat, the two ends of described protecting seat offer through hole and lower through-hole respectively, are provided with screening glass in described protecting seat, and described screening glass is provided with near one end of needle stand hole of threading a needle, the other end is provided with catch, and described catch upwardly forms buckle; Described catheter block is provided with the bayonet socket matched with described buckle, and described catheter block is connected on described protecting seat by described buckle and bayonet socket; The afterbody of puncture needle is successively through described catheter block, and upper through hole, thread a needle hole and lower through-hole are fixedly connected on described needle stand, and the head of described puncture needle is provided with deformation point.
Main in prior art exist following a few point defect: telescopic structure has the risk that draw point secondary passes; Stainless shell fragment, card, intermediate plate are all that block puncture needle, resistance is comparatively large, and the sliding capability of product is bad, and axis decentraction also cannot ensure necessarily can realize decentraction, loses the meaning of anti-acupuncture by certain resilience force to ensure its effect; In addition these product designs are complicated, assembling difficulty is large.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, provide a kind of anti-venous indwelling needle, structural design is simple, can prevent puncture needle secondary from passing and stab medical personnel, is convenient to pull away and cleaning abandons remaining needle simultaneously.
Object of the present invention will be achieved by the following technical programs:
A kind of anti-venous indwelling needle, the infusion connector comprising conduit tube component, needle tubing assembly and be connected with conduit tube component, described conduit tube component comprises catheter block and is arranged at the conduit of catheter block front end, described catheter block inside is provided with cavity, described needle tubing assembly comprises needle stand and is fixed in the puncture needle of needle stand, wherein, anti-acupuncture assembly is provided with between described catheter block and needle stand, anti-acupuncture assembly comprises the protecting seat that inside is provided with through hole, arranges the lower through-hole of stopper cavity and through-hole tail in through hole; Described puncture needle is successively through cavity and the conduit of through hole, catheter block inside; The radial direction of through hole arranges spring groove; spring and the stopper of compressive state are set in described spring groove; described spring one end and protecting seat offset, and the other end and stopper offset, and described stopper can enter stopper cavity and stop that puncture needle passes through hole.
In technique scheme; owing to being provided with anti-acupuncture assembly between catheter block and needle stand; by under the mating reaction of stopper and spring; after venipuncture completes, puncture needle withdraws, and returns in protecting seat; stopper under the action of the spring; automatic spring is in stopper cavity, and stopper can stop that puncture needle passes through hole, and then plays the effect preventing puncture needle secondary from passing.
As improvement, described protecting seat is provided with the end cap with protecting seat buckle, and affixed post inside end cap, spring housing offsets with end cap on root post.This setting, by end cap and protecting seat buckle structure, can open end cap easily, is convenient to the installation of spring in anti-acupuncture assembly; Secondly affixed post inside end cap, is convenient to the location of spring, can stopper must be sent in stopper cavity in time, prevent puncture needle secondary from passing further.
As improvement, described puncture needle head is provided with flat body, and the external diameter of described flat body is less than the internal diameter of through hole, and is greater than the internal diameter of lower through-hole; Described flat body is less than the distance of described lower through-hole to stopper cavity to the distance of the needle point of described puncture needle.This setting, the external diameter due to flat body is greater than the internal diameter of lower through-hole, and when puncture needle is withdrawn, flat body can be blocked by lower through-hole, causes the needle point shutoff of puncture needle inner at protecting seat.
As improvement, the cavity of described catheter block inside is provided with draw-in groove, and described protecting seat is provided with the dop of the buckle that to match with the draw-in groove of cavity.This setting, makes catheter block can be connected by buckle with protecting seat; Secondly, needle tubing assembly can be unloaded from catheter block together with protecting seat when puncture needle withdraws, be convenient to pull away and cleaning abandons remaining needle.
As further improvement, the cavity of described catheter block inside is provided with calibration slot, and the position that described protecting seat is corresponding is provided with calibration block.Calibration slot and the setting of calibration block, cause the through hole in the cavity of catheter block inside and protecting seat to keep axiality, and puncture needle can pass through through hole, the cavity of catheter block inside and conduit.
As improvement, the cavity of described catheter block inside is provided with batching pig, and described batching pig is positioned at the front end of protecting seat.First, when batching pig can prevent venipuncture, blood of human body is back in catheter block and protecting seat; Secondly, needle tubing assembly is from after catheter block unloads together with protecting seat, and form airtight space, batching pig can prevent transfusion to be back to catheter block.
As improvement, described infusion connector is connected by extension tube with conduit tube component.
As further improvement, described extension tube is provided with flow-stopping clip.
As improvement, described stopper is spheroid, gengon or erose metalwork or working of plastics.
As further improvement, described stopper is spheroid, and the diameter of described spheroid is greater than the internal diameter of the through hole of described protecting seat.This setting; when the puncture needle withdraw of the needle, stopper is sent into stopper cavity by spring, and the diameter due to stopper is greater than the internal diameter of the through hole of described protecting seat; stopper will stop that puncture needle enters through hole again, prevents puncture needle secondary from passing and stabs medical personnel.Secondly, spheroid contacts with puncture needle radial direction, and contact surface is little, and resistance is little, and the sliding capability during withdraw of the needle is good, is convenient to the withdraw of the needle.
Compared with the existing technology, beneficial effect of the present invention is embodied in:
(1) structural design of the present invention is simple, and without the need to special packaging technology, strong operability, material is general, Yi Xuan.
(2) functionally can reach the risk preventing puncture needle secondary from passing, effectively avoid needle pricks medical personnel, reduce the risk of blood infection, no-failure, distortion, stuck defect, truly realize anti-acupuncture effect.
(3) spheroid contacts with puncture needle radial direction, and the sliding capability during withdraw of the needle is good, and resistance is little, is convenient to the withdraw of the needle.
Accompanying drawing explanation
Fig. 1 is the structural representation of the anti-venous indwelling needle of the present invention;
Fig. 2 is the structural representation of conduit tube component of the present invention;
Fig. 3 is the structural representation of needle tubing assembly of the present invention and anti-acupuncture assembly;
Fig. 4 is the enlarged drawing of a-quadrant in Fig. 3;
Fig. 5 is the enlarged drawing in B region in Fig. 4;
Fig. 6 is the structural representation of the anti-venous indwelling needle using state one of the present invention;
Fig. 7 is the structural representation of the anti-venous indwelling needle using state two of the present invention;
Fig. 8 is the structural representation of the anti-venous indwelling needle using state three of the present invention.
Wherein, 1, conduit tube component; 11, catheter block; 12, conduit; 13, cavity; 14, draw-in groove; 15, slot is calibrated; 16, batching pig; 2, needle tubing assembly; 21, needle stand; 22, puncture needle; 23, flat body; 3, infusion connector; 4, anti-acupuncture assembly; 41, through hole; 42, stopper cavity; 43, spring; 44, stopper; 45, lower through-hole; 46, calibration block; 47, dop; 48, protecting seat; 49, end cap; 410, root post; 411, spring groove; 5, flow-stopping clip; 6, extension tube.
Detailed description of the invention
Anti-venous indwelling needle as shown in Figure 1, the infusion connector 3 comprising conduit tube component 1, needle tubing assembly 2 and be connected with conduit tube component 1.As shown in Figures 2 and 3, conduit tube component 1 comprises catheter block 11 and is arranged at the conduit 12 of catheter block 11 front end, and described catheter block 11 inside is provided with cavity 13.Needle tubing assembly 2 comprises needle stand 21 and is fixed in the puncture needle 22 of needle stand 21.Infusion connector 3 is connected by extension tube 6 with conduit tube component 1.Extension tube 6 is provided with flow-stopping clip 5.
As shown in Figure 1 and Figure 4, medical personnel are stabbed in order to prevent the puncture needle 22 of venous detaining needle, anti-acupuncture assembly 4 is provided with between catheter block 11 and needle stand 21, anti-acupuncture assembly 4 comprises the protecting seat 48 that inside is provided with through hole 41, the lower through-hole 45 of stopper cavity 42 and through hole 41 afterbody is set in through hole 41, puncture needle 22 is successively through through hole 41, the cavity 13 of catheter block 11 inside and conduit 12, the radial direction of through hole 41 arranges spring groove 411, spring 43 and the stopper 44 of compressive state are set in spring groove 411, spring 43 one end and protecting seat 48 offset, the other end and stopper 44 offset, as shown in Figure 5, the protecting seat 48 that spring 43 one end offsets is provided with end cap 49, and end cap 49 and protecting seat 48 buckle, affixed post 410 inside end cap 49, spring 43 is enclosed within root post 410 and offsets with end cap 49.Stopper 44 can enter stopper cavity 42 and stop that puncture needle 22 is through through hole 41.Quantity for spring 43 and stopper 44 fit structure can certainly be multiple, and the diameter according to protecting seat 48 determines.Stopper 44 is metal ball body, and the diameter of spheroid is greater than the internal diameter of the through hole 41 of protecting seat 48.
As shown in Figure 4, puncture needle 22 head is arranged with flat body 23, and the external diameter of flat body 23 is less than the internal diameter of through hole 41, and is greater than the internal diameter of lower through-hole 45; Flat body 23 is less than the distance of lower through-hole 45 to stopper cavity 42 to the distance of the needle point of described puncture needle 22.
As shown in Figure 2 and Figure 4, the cavity 13 of catheter block 11 inside is provided with draw-in groove 14, and protecting seat 48 is provided with the dop 47 of the buckle that to match with the draw-in groove 14 of cavity 13.Obviously other modes can also be adopted, as locked by helicitic texture between the cavity 13 of catheter block 11 inside and protecting seat 48 for this structure.The cavity 13 of catheter block 11 inside is provided with calibration slot 15, and the corresponding position of protecting seat 48 is provided with calibration block 46.Calibration slot 15 and the setting of calibration block 46, cause the cavity 13 of catheter block 11 inside can keep axiality with the through hole 41 in protecting seat 48, and puncture needle 22 can pass through through hole 41, the cavity 13 of catheter block 11 inside and conduit 12.
As shown in Figure 2, the cavity 13 of catheter block 11 inside is provided with batching pig 16, and batching pig 16 is positioned at the front end of protecting seat 48.When batching pig 16 can prevent venipuncture, blood of human body is back in catheter block 11 and protecting seat 48; Secondly, needle tubing assembly 2 is from after catheter block 11 unloads together with protecting seat 48, and form airtight space, batching pig 16 can prevent transfusion to be back to catheter block 11.
Concrete work process as can be seen from figures 6 to 8, medical personnel's hand-held needle stand 21 during venipuncture, the state of venous detaining needle as shown in Figure 6, puncture needle 22 is thrust human body skin, after having punctured, pulls needle stand 21 withdraw of the needle, because puncture needle 22 is fixed in needle stand 21, puncture needle 22 is pulled in the lump.When puncture needle 22 returns in the through hole 41 of protecting seat 48, because puncture needle 22 head is arranged with flat body 23 and the external diameter of flat body 23 is greater than the internal diameter of lower through-hole 45, flat body 23 is blocked by lower through-hole 45, stops that puncture needle 22 departs from protecting seat 48.The distance of the needle point of flat body 23 to puncture needle 22 is less than the distance of lower through-hole 45 to stopper cavity 42 simultaneously; can ensure that puncture needle 22 needle point returns to outside stopper cavity 42; make spring 43 metal ball body can be sent into stopper cavity 42; diameter due to metal ball body is greater than the internal diameter of the through hole 41 of protecting seat 48; metal ball body will stop that puncture needle 22 penetrates through hole 41 again, and now the state of venous detaining needle as shown in Figure 7.Because the cavity 13 of catheter block 11 inside is connected by dop 47 and draw-in groove 14 buckle with protecting seat 48, dop 47 can be deviate from from draw-in groove 14, catheter block 11 and protecting seat 48 are departed from, and now the state of venous detaining needle as shown in Figure 8.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various change and change, and any equivalent replacement or improvement, all should be included within protection scope of the present invention.
Claims (10)
1. an anti-venous indwelling needle, comprise conduit tube component (1), needle tubing assembly (2) and the infusion connector (3) be connected with conduit tube component (1), described conduit tube component (1) comprises catheter block (11) and is arranged at the conduit (12) of catheter block (11) front end, described catheter block (11) inside is provided with cavity (13), described needle tubing assembly (2) comprises needle stand (21) and is fixed in the puncture needle (22) of needle stand (21), it is characterized in that, anti-acupuncture assembly (4) is provided with between described catheter block (11) and needle stand (21), anti-acupuncture assembly (4) comprises the protecting seat (48) that inside is provided with through hole (41), the lower through-hole (45) of stopper cavity (42) and through hole (41) afterbody is set in through hole (41), described puncture needle (22) is successively through cavity (13) and the conduit (12) of through hole (41), catheter block (11) inside, the radial direction of through hole (41) arranges spring groove (411), spring (43) and the stopper (44) of compressive state are set in described spring groove (411), described spring (43) one end and protecting seat (48) offset, the other end and stopper (44) offset, and described stopper (44) can enter stopper cavity (42) and stop that puncture needle (22) is through through hole (41).
2. anti-venous indwelling needle according to claim 1; it is characterized in that; described protecting seat (48) is provided with the end cap (49) with protecting seat (48) buckle; the affixed post (410) in end cap (49) inner side, spring (43) is enclosed within root post (410) and end cap (49) offsets.
3. anti-venous indwelling needle according to claim 1 and 2, it is characterized in that, described puncture needle (22) head is provided with flat body (23), the external diameter of described flat body (23) is less than the internal diameter of through hole (41), and is greater than the internal diameter of lower through-hole (45); Described flat body (23) is less than the distance of described lower through-hole (45) to stopper cavity (42) to the distance of the needle point of described puncture needle (22).
4. anti-venous indwelling needle according to claim 1; it is characterized in that; the inner cavity (13) of described catheter block (11) is provided with draw-in groove (14), and described protecting seat (48) is provided with the dop (47) of the buckle that to match with the draw-in groove of cavity (13) (14).
5. anti-venous indwelling needle according to claim 4; it is characterized in that; the cavity (13) of described catheter block (11) inside is provided with calibration slot (15), and the position that described protecting seat (48) is corresponding is provided with calibration block (46).
6. anti-venous indwelling needle according to claim 1; it is characterized in that; the cavity (13) of described catheter block (11) inside is provided with batching pig (16), and described batching pig (16) is positioned at the front end of protecting seat (48).
7. anti-venous indwelling needle according to claim 1, is characterized in that, described infusion connector (3) is connected by extension tube (6) with conduit tube component (1).
8. anti-venous indwelling needle according to claim 7, is characterized in that, described extension tube (6) is provided with flow-stopping clip (5).
9. anti-venous indwelling needle according to claim 1, is characterized in that, described stopper (44) is spheroid, gengon or erose metalwork or working of plastics.
10. anti-venous indwelling needle according to claim 9, is characterized in that, described stopper (44) is spheroid, and the diameter of described spheroid is greater than the internal diameter of the through hole (41) of described protecting seat (48).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510958397.XA CN105363098B (en) | 2015-12-18 | 2015-12-18 | A kind of anti-venous indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510958397.XA CN105363098B (en) | 2015-12-18 | 2015-12-18 | A kind of anti-venous indwelling needle |
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| Publication Number | Publication Date |
|---|---|
| CN105363098A true CN105363098A (en) | 2016-03-02 |
| CN105363098B CN105363098B (en) | 2018-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510958397.XA Active CN105363098B (en) | 2015-12-18 | 2015-12-18 | A kind of anti-venous indwelling needle |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106039464A (en) * | 2016-05-13 | 2016-10-26 | 四川大学华西医院 | Superior vena cava puncture needle |
| CN108568010A (en) * | 2018-04-28 | 2018-09-25 | 冯莞婷 | Remaining needle |
| CN109011006A (en) * | 2018-08-08 | 2018-12-18 | 刘靖 | A kind of remaining needle needle assembly |
| CN109550103A (en) * | 2019-01-27 | 2019-04-02 | 北京仰生恒泰科技有限责任公司 | A kind of functional intravenous guide tube device blocked |
| CN114904088A (en) * | 2022-06-01 | 2022-08-16 | 重庆大学附属肿瘤医院 | Remaining needle taking protection device |
| CN115350362A (en) * | 2022-08-23 | 2022-11-18 | 深圳市第二人民医院(深圳市转化医学研究院) | Remaining needle with safety mechanism and using method thereof |
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| CN103071204A (en) * | 2013-01-29 | 2013-05-01 | 苏州林华医疗器械有限公司 | Safety type detaining needle with disposable use |
| CN204121525U (en) * | 2014-09-05 | 2015-01-28 | 广东百合医疗科技股份有限公司 | Two safe type venous retaining needle |
| CN205307510U (en) * | 2015-12-18 | 2016-06-15 | 杭州富善医疗器械有限公司 | Vein detained needle capable of preventing needling |
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| US5328482A (en) * | 1989-02-01 | 1994-07-12 | Sero-Guard Corporation | Catheter with automatic needle guard |
| CN101137404A (en) * | 2005-03-07 | 2008-03-05 | 厄斯金医学有限公司 | Catheter introducer with needle shield |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106039464A (en) * | 2016-05-13 | 2016-10-26 | 四川大学华西医院 | Superior vena cava puncture needle |
| CN108568010A (en) * | 2018-04-28 | 2018-09-25 | 冯莞婷 | Remaining needle |
| CN109011006A (en) * | 2018-08-08 | 2018-12-18 | 刘靖 | A kind of remaining needle needle assembly |
| CN109550103A (en) * | 2019-01-27 | 2019-04-02 | 北京仰生恒泰科技有限责任公司 | A kind of functional intravenous guide tube device blocked |
| CN109550103B (en) * | 2019-01-27 | 2024-01-26 | 浙江百获健康科技有限公司 | Vein catheter device capable of plugging |
| CN114904088A (en) * | 2022-06-01 | 2022-08-16 | 重庆大学附属肿瘤医院 | Remaining needle taking protection device |
| CN115350362A (en) * | 2022-08-23 | 2022-11-18 | 深圳市第二人民医院(深圳市转化医学研究院) | Remaining needle with safety mechanism and using method thereof |
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| CN105363098B (en) | 2018-10-19 |
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