CN105363098B - A kind of anti-venous indwelling needle - Google Patents
A kind of anti-venous indwelling needle Download PDFInfo
- Publication number
- CN105363098B CN105363098B CN201510958397.XA CN201510958397A CN105363098B CN 105363098 B CN105363098 B CN 105363098B CN 201510958397 A CN201510958397 A CN 201510958397A CN 105363098 B CN105363098 B CN 105363098B
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- Prior art keywords
- hole
- needle
- stopper
- catheter block
- cavity
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Classifications
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- 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
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention relates to a kind of anti-venous indwelling needles, including conduit tube component, needle tubing component and the infusion connector being connect with conduit tube component, conduit tube component includes catheter block and conduit, catheter block is internally provided with cavity, needle tubing component includes needle stand and puncture needle, anti- acupuncture group part is provided between catheter block and needle stand, anti- acupuncture group part includes the protecting seat for being internally provided with through-hole, setting stopper cavity and the lower through-hole of through-hole tail in through-hole, puncture needle sequentially passes through through-hole, cavity inside catheter block and conduit, in the radially setting spring groove of through-hole, the spring and stopper of setting compressive state in spring groove, spring one end offsets with protecting seat, the other end offsets with stopper, stopper can enter stopper cavity and stop that puncture needle passes through through-hole.Structure of the invention design is simple, functionally can prevent puncture needle is secondary to be pierced by, effectively avoid needle pricks medical staff, no-failure, deformation, stuck defect.
Description
Technical field
The present invention relates to infusion apparatus fields, and in particular to a kind of anti-venous indwelling needle.
Background technology
In recent years, venous detaining needle application range constantly expands, and is widely used in clinical Zhong Ge section office.Vein stays
Patient pain and fear to having an injection caused by due to venipuncture repeatedly can be reduced by setting the use of needle, mitigate the impatience of family members
Mood is convenient for clinical application, mitigates the workload of nurse, reduces patient pain.The withdraw of the needle after use of existing venous detaining needle,
Syringe needle is polluted by the blood of patient, and medical staff is easy to be stabbed and held by syringe needle when pulling away or clearing up discarding remaining needle
Easy infection disease, while discarded syringe needle is exposed be easy to cause environmental pollution in the environment, there are serious security risks.
Research has shown that nurse is the high-risk professional colony of blood born diseases, and nurse avoids in venipuncture in order to prevent
Needle stabs infection risk, has had anti-venous indwelling needle to wrap needle point with special device using telescopic design at present,
Or wrap the mode of needle point with modes such as stainless steel shrapnel, card, intermediate plates and stab risk to reduce needle, also a kind of structure
Directly stop that needle point passes through using intermediate irregularity body axis decentraction, but existing technology can not fully meet zero
The risk stabbed.
Chinese utility model patent (CN201939855U) discloses a kind of anti-venous indwelling needle, by needle shield, leads
Tube assembly, puncture needle component composition；Conduit tube component includes conduit, threeway catheter block, funnel, sealing-plug, hose, threeway seat, liver
Plain cap, end cap, clip；Puncture needle component includes puncturing needle tubing, winged needle stand and Needlestick prevention device；Needlestick prevention device is by connecting
Part, hollow sliding sleeve and sealed button composition.Chinese utility model patent (CN 203169724U) discloses a kind of disposable safety
Type remaining needle, including catheter block and needle stand are equipped with anti-needle thorn protection component between the catheter block and needle stand；The anti-needle thorn is protected
Protecting assembly includes protecting seat, and the both ends of the protecting seat offer through-hole and lower through-hole respectively, are equipped with and protect in the protecting seat
Bluff piece, the screening glass are equipped with hole of threading a needle close to one end of needle stand, and the other end is equipped with catch, the upward formation card of catch
Button；The catheter block, which is equipped with, to be connected to the matched bayonet of buckle, the catheter block by the buckle and bayonet
On the protecting seat；The tail portion of puncture needle sequentially passes through the catheter block, upper through-hole, threads a needle hole and lower through-hole is fixedly connected on institute
It states on needle stand, the head of the puncture needle is equipped with deformation point.
It is primarily present following defect in the prior art：Telescopic structure has the secondary risk passed through of draw point；It is stainless
Shrapnel, card, the intermediate plate of steel are all to ensure its effect by certain screen resilience, block puncture needle, resistance is larger, the sliding of product
Performance is bad, and axis decentraction can not also ensure that decentraction centainly may be implemented, and loses the meaning of anti-needle thorn；In addition these products
Design is complicated, assembling difficulty is big.
Invention content
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of anti-venous indwelling needle, structure design
Simply, it can prevent secondary be pierced by of puncture needle from stabbing medical staff, while remaining needle is abandoned convenient for pulling away and clearing up.
The purpose of the present invention will be achieved by the following technical programs：
A kind of anti-venous indwelling needle, including conduit tube component, needle tubing component and the infusion that is connect with conduit tube component connect
Head, the conduit tube component include catheter block and the conduit for being set to catheter block front end, and the catheter block is internally provided with sky
Chamber, the needle tubing component include needle stand and are fixed in the puncture needle of needle stand, wherein are set between the catheter block and needle stand
It is equipped with anti-acupuncture group part, anti-acupuncture group part includes the protecting seat for being internally provided with through-hole, and stopper cavity is arranged in through-hole and leads to
The lower through-hole of hole tail portion；The puncture needle sequentially passes through through-hole, cavity and conduit inside catheter block；In the radial direction of through-hole
Upper setting spring groove, the spring and stopper of the interior setting compressive state of the spring groove, the spring one end and protecting seat
It offsets, the other end offsets with stopper, and the stopper can enter stopper cavity and stop that puncture needle passes through through-hole.
In the above-mentioned technical solutions, due to being provided with anti-acupuncture group part between catheter block and needle stand, pass through stopper and bullet
Under the mating reaction of spring, after the completion of venipuncture, puncture needle is withdrawn, and is returned in protecting seat, stopper under the action of the spring,
In automatic spring to stopper cavity, stopper can stop that puncture needle passes through through-hole, and then playing prevents puncture needle is secondary from wearing
The effect gone out.
As an improvement, the protecting seat is provided with the end cap buckled with protecting seat, the affixed column in end cap inside, spring pocket
It offsets with end cap on root column.This setting can easily be opened end cap, be convenient for by end cap and protecting seat buckle structure
Installation of the spring in anti-acupuncture group part；Secondly affixed column on the inside of end cap, is convenient for the positioning of spring, timely can obtain and will stop
Block is sent into stopper cavity, further prevents puncture needle is secondary to be pierced by.
As an improvement, the puncture needle head is equipped with flat body portion, the outer diameter in the flat body portion is less than the internal diameter of through-hole, and
More than the internal diameter of lower through-hole；The distance of needle point of the flat body portion to the puncture needle is less than the lower through-hole to stopper chamber
The distance of body.This setting, since the outer diameter in flat body portion is more than the internal diameter of lower through-hole so that flat body portion can when puncture needle is withdrawn
It is blocked by lower through-hole, the needle point of puncture needle is caused to block inside protecting seat.
As an improvement, the cavity inside the catheter block is equipped with card slot, the protecting seat is provided with the card with cavity
Slot matches the clamp of buckle.This setting so that catheter block can be snapped connection with protecting seat；Secondly, when puncture needle is withdrawn
Needle tubing component can be unloaded together with protecting seat from catheter block, convenient for pulling away and clearing up discarding remaining needle.
As a further improvement, the cavity inside the catheter block is equipped with meter calibration tank position, the protecting seat is corresponding
Position be provided with calibration block.The setting of meter calibration tank position and calibration block causes logical in the cavity and protecting seat inside catheter block
Hole can keep concentricity, and puncture needle can pass through through-hole, cavity and conduit inside catheter block.
As an improvement, the cavity inside the catheter block is equipped with batching pig, before the batching pig is located at protecting seat
End.First, when batching pig can prevent venipuncture, blood of human body flows back into catheter block and protecting seat；Secondly, needle tubing component
After being unloaded from catheter block together with protecting seat, closed space is formed, batching pig can prevent infusion from flowing back into catheter block.
As an improvement, the infusion connector is connect with conduit tube component by extension tube.
As a further improvement, being provided with flow-stopping clip in the extension tube.
As an improvement, the stopper is the metalwork or plastic part of sphere, gengon or irregular shape.
As a further improvement, the stopper is sphere, the diameter of the sphere is more than the protecting seat
The internal diameter of through-hole.This setting, when the puncture needle withdraw of the needle, stopper is sent into stopper cavity by spring, straight due to stopper
Diameter is more than the internal diameter of the through-hole of the protecting seat, and stopper will stop that puncture needle is again introduced into through-hole, prevent puncture needle two
Secondary be pierced by stabs medical staff.Secondly, sphere is radially contacted with puncture needle, and contact surface is small, and resistance is small, the sliding capability when withdraw of the needle
It is good, it is convenient for the withdraw of the needle.
Compared with the existing technology, beneficial effects of the present invention are embodied in：
(1) structure of the invention design is simple, and without special packaging technology, strong operability, material is universal, Yi Xuan.
(2) can functionally reach prevents the secondary risk being pierced by of puncture needle, effectively avoids needle pricks medical staff, drop
The risk of low blood infection, no-failure, deformation, stuck defect, truly realizes anti-acupuncture effect.
(3) sphere is radially contacted with puncture needle, and the sliding capability when withdraw of the needle is good, and resistance is small, is convenient for the withdraw of the needle.
Description of the drawings
Fig. 1 is the structural schematic diagram of the anti-venous indwelling needle of the present invention；
Fig. 2 is the structural schematic diagram of conduit tube component of the present invention；
Fig. 3 is the structural schematic diagram of needle tubing component of the present invention and anti-acupuncture group part；
Fig. 4 is the enlarged drawing of a-quadrant in Fig. 3；
Fig. 5 is the enlarged drawing of B area in Fig. 4；
Fig. 6 is the structural schematic diagram of anti-venous indwelling needle use state one of the invention；
Fig. 7 is the structural schematic diagram of anti-venous indwelling needle use state two of the invention；
Fig. 8 is the structural schematic diagram of anti-venous indwelling needle use state three of the invention.
Wherein, 1, conduit tube component；11, catheter block；12, conduit；13, cavity；14, card slot；15, meter calibration tank position；16, it is isolated
Plug；2, needle tubing component；21, needle stand；22, puncture needle；23, flat body portion；3, infusion connector；4, anti-acupuncture group part；41, through-hole；42、
Stopper cavity；43, spring；44, stopper；45, lower through-hole；46, calibration block；47, clamp；48, protecting seat；49, end cap；
410, root column；411, spring groove；5, flow-stopping clip；6, extension tube.
Specific implementation mode
Anti- venous indwelling needle as shown in Figure 1, including conduit tube component 1, needle tubing component 2 and with conduit tube component 1 connect
The infusion connector 3 connect.As shown in Figures 2 and 3, conduit tube component 1 including catheter block 11 and is set to leading for 11 front end of catheter block
Pipe 12, the catheter block 11 are internally provided with cavity 13.Needle tubing component 2 includes needle stand 21 and the puncture needle for being fixed in needle stand 21
22.Infusion connector 3 is connect with conduit tube component 1 by extension tube 6.Flow-stopping clip 5 is provided in extension tube 6.
As shown in Figure 1 and Figure 4, the puncture needle 22 of venous detaining needle stabs medical staff, catheter block 11 and needle in order to prevent
Anti- acupuncture group part 4 is provided between seat 21, anti-acupuncture group part 4 includes the protecting seat 48 for being internally provided with through-hole 41, is set in through-hole 41
Set the lower through-hole 45 of 41 tail portion of stopper cavity 42 and through-hole, puncture needle 22 sequentially passes through through-hole 41, inside catheter block 11
Cavity 13 and conduit 12, the spring of setting compressive state in the radially setting spring groove 411 of through-hole 41, spring groove 411
43 and stopper 44,43 one end of spring offset with protecting seat 48, the other end offsets with stopper 44；As shown in figure 5, spring 43 1
The protecting seat 48 to offset is held to be provided with end cap 49, end cap 49 is buckled with protecting seat 48, the 49 affixed column 410 in inside of end cap, spring
43 are sleeved on root column 410 and offset with end cap 49.Stopper 44 can enter stopper cavity 42 and stop that puncture needle 22 passes through and lead to
Hole 41.Quantity for spring 43 and 44 fit structure of stopper can certainly be multiple, be determined according to the diameter of protecting seat 48
It is fixed.Stopper 44 is metal ball body, and the diameter of sphere is more than the internal diameter of the through-hole 41 of protecting seat 48.
As shown in figure 4,22 head of puncture needle is arranged with flat body portion 23, the outer diameter in flat body portion 23 is less than the interior of through-hole 41
Diameter, and more than the internal diameter of lower through-hole 45；The distance of needle point of the flat body portion 23 to the puncture needle 22 is less than lower through-hole 45 to blocking
The distance of block cavity 42.
As shown in Figure 2 and Figure 4, the cavity 13 inside catheter block 11 is equipped with card slot 14, and protecting seat 48 is provided with and cavity 13
Card slot 14 match the clamp 47 of buckle.Other modes obviously can also be used for this structure, inside catheter block 11
Cavity 13 and protecting seat 48 between can be locked by helicitic texture.Cavity 13 inside catheter block 11 is equipped with meter calibration tank position
15,48 corresponding position of protecting seat is provided with calibration block 46.The setting of meter calibration tank position 15 and calibration block 46 leads to catheter block 11
Internal cavity 13 can keep concentricity, puncture needle 22 that can pass through through-hole 41, lead with the through-hole 41 in protecting seat 48
Cavity 13 inside tube socket 11 and conduit 12.
As shown in Fig. 2, the cavity 13 inside catheter block 11 is equipped with batching pig 16, before batching pig 16 is located at protecting seat 48
End.When batching pig 16 can prevent venipuncture, blood of human body flows back into catheter block 11 and protecting seat 48；Secondly, needle tubing group
After part 2 is unloaded from catheter block 11 together with protecting seat 48, closed space is formed, batching pig 16 can prevent infusion from flowing back into
Catheter block 11.
As can be seen from figures 6 to 8, medical staff holds needle stand 21 to the specific course of work when venipuncture, venous detaining needle
State after the completion of puncture, pulls 21 withdraw of the needle of needle stand as shown in fig. 6, by the piercing human skin of puncture needle 22, since puncture needle 22 is solid
It is connected to needle stand 21, puncture needle 22 is pulled together.In the through-hole 41 that puncture needle 22 returns to protecting seat 48, due to puncture needle 22
Head is arranged with the outer diameter in flat body portion 23 and flat body portion 23 more than the internal diameter of lower through-hole 45, and flat body portion 23 is blocked by lower through-hole 45
Firmly, blocking puncture needle 22 is detached from protecting seat 48.The distance of needle point of the flat body portion 23 to puncture needle 22 is arrived less than lower through-hole 45 simultaneously
The distance of stopper cavity 42, it is ensured that 22 needle point of puncture needle returns to except stopper cavity 42 so that spring 43 can
Metal ball body is sent into stopper cavity 42, since the diameter of metal ball body is more than the internal diameter of the through-hole 41 of protecting seat 48, metal
Sphere will stop that puncture needle 22 penetrates through-hole 41 again, and the state of venous detaining needle is as shown in Figure 7 at this time.Due to catheter block 11
Internal cavity 13 is snapped connection with protecting seat 48 by clamp 47 and card slot 14, can deviate from clamp 47 from card slot 14,
So that catheter block 11 is detached from protecting seat 48, the state of venous detaining needle is as shown in Figure 8 at this time.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for those skilled in the art
For member, the present invention can have various changes and change, any equivalent replacement or improvement, should be included in the protection model of the present invention
Within enclosing.
Claims (7)
1. a kind of anti-venous indwelling needle, including conduit tube component (1), needle tubing component (2) and it is connect with conduit tube component (1)
Infusion connector (3), the conduit tube component (1) include catheter block (11) and the conduit for being set to catheter block (11) front end
(12), the catheter block (11) is internally provided with cavity (13), and the needle tubing component (2) includes needle stand (21) and is fixed in
The puncture needle (22) of needle stand (21), which is characterized in that be provided with anti-acupuncture group between the catheter block (11) and needle stand (21)
Part (4), anti-acupuncture group part (4) include the protecting seat (48) for being internally provided with through-hole (41), and stopper cavity is arranged in through-hole (41)
(42) and the lower through-hole (45) of through-hole (41) tail portion；The puncture needle (22) sequentially passes through through-hole (41), catheter block (11)
Internal cavity (13) and conduit (12)；In the radially setting spring groove (411) of through-hole (41), the spring groove
(411) spring (43) and stopper (44) of setting compressive state, the spring (43) one end offset with protecting seat (48) in,
The other end offsets with stopper (44), and the stopper (44) can enter stopper cavity (42) and stop puncture needle (22)
Across through-hole (41)；
The protecting seat (48) is provided with the end cap (49) with protecting seat (48) buckle, the affixed column in end cap (49) inside
(410), spring (43) is sleeved on root column (410) and offsets with end cap (49)；
The internal cavity (13) of the catheter block (11) is equipped with card slot (14), and the protecting seat (48) is provided with and cavity
(13) card slot (14) matches the clamp (47) of buckle；
The internal cavity (13) of the catheter block (11) is equipped with meter calibration tank position (15), the protecting seat (48) corresponding position
It installs and is equipped with calibration block (46).
2. anti-venous indwelling needle according to claim 1, which is characterized in that described puncture needle (22) head is equipped with
Flat body portion (23), the outer diameter of the flat body portion (23) are less than the internal diameter of through-hole (41), and more than the internal diameter of lower through-hole (45)；It is described
The distance of flat body portion (23) to the needle point of the puncture needle (22) is less than the lower through-hole (45) to stopper cavity (42)
Distance.
3. anti-venous indwelling needle according to claim 1, which is characterized in that the internal sky of the catheter block (11)
Chamber (13) is equipped with batching pig (16), and the batching pig (16) is located at the front end of protecting seat (48).
4. anti-venous indwelling needle according to claim 1, which is characterized in that the infusion connector (3) and conduit
Component (1) is connected by extension tube (6).
5. anti-venous indwelling needle according to claim 4, which is characterized in that be provided in the extension tube (6)
Flow-stopping clip (5).
6. anti-venous indwelling needle according to claim 1, which is characterized in that the stopper (44) be sphere,
The metalwork or plastic part of gengon or irregular shape.
7. anti-venous indwelling needle according to claim 6, which is characterized in that the stopper (44) is sphere,
The diameter of the sphere is more than the internal diameter of the through-hole (41) of the 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 |
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| CN105363098A CN105363098A (en) | 2016-03-02 |
| CN105363098B true 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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Families Citing this family (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 |
| 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 |
| CN113855921A (en) * | 2021-10-28 | 2021-12-31 | 阳普医疗（湖南）有限公司 | Remaining needle |
| CN114904088B (en) * | 2022-06-01 | 2023-06-20 | 重庆大学附属肿瘤医院 | Needle protection device is got to remaining needle |
| 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 |
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| 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 |
| CN201481960U (en) * | 2009-05-14 | 2010-05-26 | 江西洪达医疗器械集团有限公司 | Safety venous indwelling needle |
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| CN105363098A (en) | 2016-03-02 |
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