CN205055046U - Safe formula transfusion needle - Google Patents
Safe formula transfusion needle Download PDFInfo
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- CN205055046U CN205055046U CN201520652919.9U CN201520652919U CN205055046U CN 205055046 U CN205055046 U CN 205055046U CN 201520652919 U CN201520652919 U CN 201520652919U CN 205055046 U CN205055046 U CN 205055046U
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- needle
- cylindrical shell
- chute
- sides
- barrel
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Abstract
The utility model relates to a safe formula transfusion needle, it includes: a barrel, a spout has respectively been seted up to the both sides of barrel, and this spout distributes along the axial of barrel, cylinder cavity cavity, the cavity inner wall department of barrel front end is equipped with a cyclic annular draw -in groove, the spout department that the barrel is close to the back end is equipped with backward hold stop gear, a needle file, the needle file sets up in above -mentioned barrel to along endwise slip in the barrel, the needle file by the needle file main part with be located the slide that the needle file lived the syringe needle installation department of body front end and be located needle file main part both sides and constitute, this slide one side and needle file main part outer wall fixed connection, the opposite side is connected with handheld operating portion, handheld operating portion is located the outside of barrel both sides, the slide is located above -mentioned spout and follows endwise slip at the spout. Above -mentioned technical scheme's advantage is: this safe formula transfusion needle passes through springiness cushioning mechanism or block mechanism realizes that the needle file and the moderate degree of transfusion needle barrel front end lock, can realize the locking of syringe needle and barrel front end, dynamics in the time of can not hindering the syringe needle to pull back again, the needle file operation of pulling back of being convenient for of the handheld sliding plate of both sides, the barrel design is rectangular platykurtic, not only make things convenient for the handheld operation of operator but also make things convenient for the syringe needle fixed, the backward hold stop gear of barrel spout back end can realize the backward hold between needle file and barrel, outside can preventing that the syringe needle is by accident release barrel.
Description
Technical field
This utility model relates to the technical field of medical apparatus and instruments, particularly relates to a kind of safety infusion needle.
Background technology
In order to avoid medical worker meets accident pricking wound and cause the cross infection of infectious disease in medical procedure, medical institutions, when carrying out venous transfusion, it is desirable to can select disposable safe transfusion needle, as following documents more.
Documents, utility model patent number: 201220139729.3, the applying date: 2012.04.01, patentee: Kang Delai Zhejiang Medical Devices Co, this case discloses a kind of safety transfusion needle, comprise transfusion needle assembly and containment, transfusion needle assembly comprises a needle holder and is installed in the needle tubing in needle holder, needle holder both sides are provided with the fin that symmetry is stretched out, containment entirety in tubular construction, transfusion needle pack clearance is equipped with in containment, the both sides of containment are provided with axial slide, described needle holder both sides fin exposes from chute, the end of chute is provided with the locked groove of positioning tabs, it is characterized in that: described needle holder is provided with safe projection, position corresponding with safe projection sliding trajectory on described containment is provided with the projection guide groove with projection matched in clearance, safe projection is in projection guide groove, the end of the projection guide groove slotted eye be provided with safe projection matching form that is connected forms safety groove, the latter end narrowed width of projection guide groove is less than safe bump width.
As can be seen from above-mentioned documents, most products of existing safety transfusion needle, in the convenience etc. of product structure or use, have the necessity improved further and optimize.
Utility model content
The purpose of this utility model is to provide a kind of safety infusion needle, and it can overcome the shortcomings or deficiency that exist in prior art.
The technical scheme of this utility model first embodiment is: a kind of safety infusion needle, it is characterized in that: it comprises a cylindrical shell, the both sides of described cylindrical shell respectively offer a chute, this chute is along the axial distribution of cylindrical shell, cylinder lumen hollow, cylinder lumen is in communication with the outside by the chute of both sides, and the cavity inner wall place of barrel front end is provided with a ring-type draw-in groove; The chute place of cylindrical shell back segment is provided with reverse limitation locking mechanism; One needle stand, described needle stand to be arranged in above-mentioned cylindrical shell and to slide axially in cylindrical shell; Described needle stand is by needle hub body and be positioned at the syringe needle installation portion that needle stand lives body front end and the slide plate being positioned at needle hub body both sides is formed, this slide plate side is fixedly connected with needle hub body outer wall, opposite side is connected with hand-held portion, hand-held portion is positioned at the outside of cylindrical shell both sides, and described slide plate is positioned at above-mentioned chute and slides axially at chute; Outer wall place, described needle hub body front end forms an elastic buffer holding section, and this elastic buffer holding section formed between cylindrical shell with needle stand spacing of matching with the ring-type draw-in groove of above-mentioned cylindrical shell engages; Syringe needle installation portion place is provided with a needle tubing.
The technical scheme of this utility model second embodiment is: a kind of safety infusion needle, it is characterized in that: it comprises a cylindrical shell, the both sides of described cylindrical shell respectively offer a chute, this chute is along the axial distribution of cylindrical shell, cylinder lumen hollow, cylinder lumen is in communication with the outside by the chute of both sides, and the cavity inner wall place of barrel front end is provided with a ring-type draw-in groove; The chute place of cylindrical shell back segment is provided with reverse limitation locking mechanism; One needle stand, described needle stand to be arranged in above-mentioned cylindrical shell and to slide axially in cylindrical shell; Described needle stand is made up of needle hub body and the slide plate being positioned at needle hub body both sides, this slide plate side is fixedly connected with needle hub body outer wall, opposite side is connected with hand-held portion, hand-held portion is positioned at the outside of cylindrical shell both sides, described slide plate is positioned at above-mentioned chute and slides axially at chute, and above-mentioned needle hub body inner chamber is hollow form and forms a needle stand assembly cavity; Outer wall place, described needle hub body front end forms an elastic buffer holding section, and this elastic buffer holding section formed between cylindrical shell with needle stand spacing of matching with above-mentioned cylindrical shell ring-type draw-in groove engages.This kind of needle stand structure can be used as a safety device and existing transfusion needle connects, that is, be directly assemblied on described needle stand by the transfusion needle assembled (removing fin).
The technical scheme of this utility model the 3rd embodiment is: a kind of safety infusion needle, it is characterized in that: it comprises a cylindrical shell, the both sides of described cylindrical shell respectively offer a chute, this chute is along the axial distribution of cylindrical shell, cylinder lumen hollow, cylinder lumen is in communication with the outside by the chute of both sides, and the outer wall place of barrel front end both sides is respectively equipped with a spacing preiection portion, and the outer wall place of cylinder back-end both sides is respectively equipped with a snap fit tabs portion; One needle stand, described needle stand to be arranged in above-mentioned cylindrical shell and to slide axially in cylindrical shell; Described needle stand is by needle hub body and be positioned at the syringe needle installation portion that needle stand lives body front end and the slide plate being positioned at needle hub body both sides is formed, this slide plate side is fixedly connected with needle hub body outer wall, opposite side is connected with hand-held portion, hand-held portion is positioned at the outside of cylindrical shell both sides, and described slide plate is positioned at above-mentioned chute and slides axially at chute; Described syringe needle installation portion seat is provided with a needle tubing, the inner chamber of syringe needle installation portion with the inner space of needle hub body and the side that needle hub body inner chamber axle center is partial in the inner chamber axle center of syringe needle installation portion formed to misplace and be connected.
The major advantage of technique scheme is: 1, cylindrical shell adopts strip flat structure hand-held portion is placed in cylindrical shell both sides, not only handled easily personnel hand-held puncture but also to be retracted into by needle stand after facilitating transfusion to terminate in cylindrical shell and to realize backward hold; The flat structure of cylindrical shell is mainly convenient to be fixed on patient's the back of the hand, to replace existing tab construction by stable for transfusion needle; 2, the second case study on implementation be using needle stand as a safety device, make it can assemble with existing transfusion needle and use; 3, in the 3rd case study on implementation, needle stand installation portion is connected with adopting between needle hub body to misplace, and contributes to making needle tubing more press close to the body skin of patient, reduces the unexpected injury that infusion needle may cause patient vessel, allows patient's safety and comfort more; 4, when enforcement first and the 3rd case, in needle hub body, install the relief valve preventing liquid reflux additional, can further improve the dual security protection of product to medical worker and patient.This safety transfusion needle global design is reasonable, compact, attractive in appearance, easy to operate, stable working state.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model will be further described.
Fig. 1 is this utility model first example structure schematic diagram.
Fig. 2 is this utility model first embodiment cylindrical shell leading portion axonometric chart.
Fig. 3 is this utility model first embodiment cylindrical shell front segment structure schematic diagram.
Fig. 4 is this utility model first embodiment cylindrical shell leading portion top view.
Fig. 5 is this utility model first embodiment cylindrical shell leading portion upward view.
Fig. 6 is this utility model first embodiment cylindrical shell leading portion side view.
Fig. 7 is this utility model first embodiment cylindrical shell back segment profile.
Fig. 8 is this utility model first embodiment cylindrical shell rear section structure schematic diagram.
Fig. 9 is this utility model first embodiment needle stand axonometric chart.
Figure 10 is this utility model first embodiment needle stand profile.
Figure 11 is this utility model first embodiment needle stand top view.
Figure 12 is this utility model first embodiment safe condition schematic diagram.
Figure 13 is this utility model second embodiment needle stand structure schematic diagram.
Figure 14 is this utility model the 3rd example structure schematic diagram.
Figure 15 is this utility model the 3rd embodiment side view.
Figure 16 is this utility model the 3rd embodiment needle stand structure schematic diagram.
Figure 17 is this utility model the 3rd embodiment needle stand side view.
Figure 18 is this utility model the 3rd embodiment needle stand top view.
Figure 19 is this utility model the 3rd embodiment needle stand upward view.
Figure 20 is this utility model the 3rd embodiment upper shell side view.
Figure 21 is this utility model the 3rd embodiment upper shell structural representation.
Figure 22 is this utility model the 3rd embodiment lower house structural representation.
Figure 23 is this utility model the 3rd embodiment lower house side view.
Figure 24 is this utility model liquidproof reflux safety valve structure schematic diagram.
Wherein:
1, cylindrical shell;
2, chute;
3, ring-type draw-in groove;
4, backward hold position-limit mechanism;
5, needle stand;
6, needle hub body;
7, syringe needle installation portion;
8, slide plate;
9, hand-held portion;
10, elastic buffer holding section;
11, needle tubing;
12, ring-type buffer gap;
13, annular resilient limiting section;
14, plectrum;
15, cylindrical shell leading portion;
16, cylindrical shell back segment;
17, bayonet socket; ,
18, buckle;
19, opening '
20, needle stand assembly cavity;
21, spacing preiection portion;
22, snap fit tabs portion;
23, upper shell;
24, lower house;
25, snap-latch surface;
26, guiding surface;
27, plane;
28, pipe connection portion;
29, valve pocket;
30, water conservancy diversion convex tendon;
31, circular step;
32, conical plug.
Detailed description of the invention
A kind of safety infusion needle is disclosed in this utility model first embodiment, it is different from prior art and is: it comprises a cylindrical shell 1, the both sides of described cylindrical shell respectively offer a chute 2, this chute is along the axial distribution of cylindrical shell, cylinder lumen hollow, cylinder lumen is in communication with the outside by the chute of both sides, and the cavity inner wall place of barrel front end is provided with a ring-type draw-in groove 3; The chute place of cylindrical shell back segment is provided with backward hold position-limit mechanism 4; One needle stand 5, described needle stand to be arranged in above-mentioned cylindrical shell and to slide axially in cylindrical shell; Described needle stand is by needle hub body 6 and be positioned at the syringe needle installation portion 7 that needle stand lives body front end and the slide plate 8 being positioned at needle hub body both sides is formed, this slide plate side is fixedly connected with needle hub body outer wall, opposite side is connected with hand-held portion 9, hand-held portion is positioned at the outside of cylindrical shell both sides, and described slide plate is positioned at above-mentioned chute and slides axially at chute; Outer wall place, described needle hub body front end forms an elastic buffer holding section 10, and this elastic buffer holding section formed between cylindrical shell with above-mentioned needle stand spacing of matching with above-mentioned cylindrical shell ring-type draw-in groove engages; Syringe needle installation portion place is provided with a needle tubing 11, and above-mentioned elastic buffer holding section entirety is in cylindrical shape, and this cylindrical upper end surface offers a ring-type buffer gap 12; An annular resilient limiting section 13 is formed outside this ring-type buffer gap.
In the specific implementation, described backward hold position-limit mechanism is two panels is the pincerlike plectrum 14 distributed, and two panels plectrum is in symmetrical up and down, and one end and the runner wall edge conjunction of plectrum are integral, other end hanging shape.
In the specific implementation, described cylindrical shell is assembled by cylindrical shell leading portion 15 and cylindrical shell back segment 16, and cylindrical shell leading portion and cylindrical shell back segment are linked into an integrated entity by snap device.
In the specific implementation, above-mentioned cylindrical shell leading portion global approximation is a flat-shaped square, and the rear end of cylindrical shell leading portion is opening-like, and this opening part is distributed with bayonet socket 17 or groove.
In the specific implementation, the front end of described cylindrical shell back segment is opening-like, and this opening part is provided with the buckle 18 with above-mentioned bayonet socket or slot fit, and the rear end of cylindrical shell back segment is provided with the opening 19 through with the external world.
This utility model patent first embodiment in actual use, as as shown in Fig. 1 and Figure 12, when transfusion state, the elastic packing spacing ring holding section at elastic buffer holding section outer wall or outer rim place is in the ring-type draw-in groove of cylinder inboard wall, this structure can well suitably lock needle stand portion, after transfusion completes, the singlehanded two finger of operator clutches the hand-held sliding panel of both sides, pull back hand-held sliding panel, under the effect of pulling force, elastic annular cushion collar generation fine motion extruding produces distortion, elastic packing spacing ring is from slippage in ring-type draw-in groove, hand-held sliding panel slides backward until in the pincerlike plectrum place distributed in chute, hand-held sliding panel pulls backward again oppresses plectrum distortion simultaneously, the gap between plectrum end is made to become large, hand-held sliding panel is taken advantage of a situation and is slipped into the other end of pincerlike distribution plectrum, final hand-held sliding panel is moved in above-mentioned spacing cavity, because the gap between the plectrum that pincer distributes is restored, this gap is less than the thickness of hand-held sliding panel, therefore hand-held sliding panel cannot slip in the chute of both sides again, whole needle stand by locked in spacing cavity, now, the needle tubing of needle stand front end is positioned at cylindrical shell cavity completely, realize the safety operation of transfusion needle.
A kind of safety infusion needle is disclosed in this utility model second embodiment, it is different from prior art and is: it comprises a cylindrical shell 1, the both sides of described cylindrical shell respectively offer a chute 2, this chute is along the axial distribution of cylindrical shell, cylinder lumen hollow, cylinder lumen is in communication with the outside by the chute of both sides, and the cavity inner wall place of barrel front end is provided with a ring-type draw-in groove 3; The chute place of cylindrical shell back segment is provided with backward hold position-limit mechanism 4; One needle stand 5, described needle stand to be arranged in above-mentioned cylindrical shell and to slide axially in cylindrical shell; Described needle stand is made up of needle hub body 6 and the slide plate 8 being positioned at needle hub body both sides, this slide plate side is fixedly connected with needle hub body outer wall, opposite side is connected with hand-held portion 9, hand-held portion is positioned at the outside of cylindrical shell both sides, described slide plate is positioned at above-mentioned chute and slides axially at chute, and above-mentioned needle hub body 6 inner chamber is hollow form and forms a needle stand assembly cavity 20; Outer wall place, described needle hub body front end forms an elastic buffer holding section 10, and this elastic buffer holding section formed between cylindrical shell with above-mentioned needle stand spacing of matching with above-mentioned cylindrical shell ring-type draw-in groove engages.
In the specific implementation, the outer wall place of described needle hub body 6 offers a breach, and this breach genesis analysis is at the outer wall place of needle hub body and be communicated with above-mentioned needle stand assembly cavity 20.The advantage of this structure utilizes described needle stand structure after removing fin, directly to assemble use as a kind of safety device and existing transfusion needle, as to the existing improvement of fin transfusion needle and the lifting of security performance.
A kind of safety infusion needle is disclosed in this utility model the 3rd embodiment, it is different from prior art and is: it comprises a cylindrical shell 1, the both sides of described cylindrical shell respectively offer a chute 2, this chute is along the axial distribution of cylindrical shell, cylinder lumen hollow, cylinder lumen is in communication with the outside by the chute of both sides, and cylindrical shell is respectively equipped with a spacing preiection portion 21 near the outer wall place of both sides, front end, and the outer wall place of cylinder back-end both sides is respectively equipped with a snap fit tabs portion 22; One needle stand 5, described needle stand to be arranged in above-mentioned cylindrical shell and to slide axially in cylindrical shell; Described needle stand is by needle hub body 6 and be positioned at the syringe needle installation portion 7 that needle stand lives body front end and the slide plate 8 being positioned at needle hub body both sides is formed, this slide plate side is fixedly connected with needle hub body outer wall, opposite side is connected with hand-held portion 9, hand-held portion is positioned at the outside of cylindrical shell both sides, and described slide plate is positioned at above-mentioned chute and slides axially at chute; Described syringe needle installation portion is provided with a needle tubing, the inner chamber of syringe needle installation portion with the inner space of needle hub body and the side that needle hub body inner chamber axle center is partial in the inner chamber axle center of syringe needle installation portion formed to misplace and be connected.
In the specific implementation, described cylindrical shell is the strip quad flat body structure that front end is narrowed, and this cylindrical shell is assembled by upper shell 23 and lower house 24.
In the specific implementation, medial wall place of described hand-held portion forms the snap-latch surface 25 matched with above-mentioned spacing preiection portion, snap fit tabs portion.
In the specific implementation, the front end in described snap fit tabs portion is guiding surface 26, and the front end in snap fit tabs portion is a plane 27 vertical with cylindrical shell barrel, and this plane is used for and snap-latch surface coordinates, and carries out spacing to needle stand, stops needle stand anterior displacement again.
This utility model patent the 3rd embodiment in actual use, as shown in Figure 14, after transfusion completes, the hand-held sliding panel that two finger pinches cylindrical shell both sides pulls back needle stand, after clamp crosses spacing preiection portion, needle stand is along slide, cross snap fit tabs portion under the effect of clamp at guiding surface after, needle stand by be positioned at spacing with snap fit tabs portion after rear end, effectively prevent needle stand from again being pushed to barrel front end, complete the safety operation of transfusion needle.
In the specific implementation, described needle hub body inner chamber hollow also forms the pipe connection portion 28 be connected with tube for transfusion; The relief valve preventing liquid reflux is provided with in described needle stand pipe connection portion; Liquidproof reflux relief valve comprises the valve pocket 29 being arranged on described pipe connection portion leading inside; Described valve pocket inwall is provided with the water conservancy diversion convex tendon 30 of some genesis analysis; One end of water conservancy diversion convex tendon is pointed to pipeline closure and forms a circular step 31; The conical plug 32 of an independent activities is provided with in described valve pocket.
It should be pointed out that for this utility model through absolutely proving, also can have the embodiment of multiple conversion and remodeling, be not limited to the specific embodiment of above-mentioned embodiment.Above-described embodiment as just explanation of the present utility model, instead of to restriction of the present utility model.In a word, protection domain of the present utility model should comprise those apparent conversion or alternative and remodeling to those skilled in the art.
Claims (13)
1. a safety infusion needle, is characterized in that: it comprises
One cylindrical shell (1), the both sides of described cylindrical shell respectively offer a chute (2), this chute along the axial distribution of cylindrical shell, cylinder lumen hollow, cylinder lumen is in communication with the outside by the chute of both sides, and the cavity inner wall place of barrel front end is provided with a ring-type draw-in groove (3); The chute place of cylindrical shell back segment is provided with backward hold position-limit mechanism (4);
One needle stand (5), described needle stand to be arranged in above-mentioned cylindrical shell and to slide axially in cylindrical shell; Described needle stand is by needle hub body (6) and be positioned at the syringe needle installation portion (7) that needle stand lives body front end and the slide plate (8) being positioned at needle hub body both sides is formed, this slide plate side is fixedly connected with needle hub body outer wall, opposite side is connected with hand-held portion (9), hand-held portion is positioned at the outside of cylindrical shell both sides, and described slide plate is positioned at above-mentioned chute and slides axially at chute; Outer wall place, described needle hub body front end forms an elastic buffer holding section (10), and this elastic buffer holding section formed between cylindrical shell with above-mentioned needle stand spacing of matching with above-mentioned ring-type draw-in groove engages; Syringe needle installation portion place is provided with a needle tubing (11).
2. a kind of safety infusion needle according to claim 1, is characterized in that: above-mentioned elastic buffer holding section entirety is in cylindrical shape, and this cylindrical upper end surface offers a ring-type buffer gap (12); An annular resilient limiting section (13) is formed outside this ring-type buffer gap.
3. a kind of safety infusion needle according to claim 1, it is characterized in that: described reverse limitation locking mechanism is two panels is the pincerlike plectrum (14) distributed, two panels plectrum is in symmetrical up and down, and one end and the runner wall edge conjunction of plectrum are integral, other end hanging shape.
4. a kind of safety infusion needle according to claim 1, is characterized in that: described cylindrical shell is assembled by cylindrical shell leading portion (15) and cylindrical shell back segment (16), and cylindrical shell leading portion and cylindrical shell back segment are linked into an integrated entity by snap device.
5. a kind of safety infusion needle according to claim 4, is characterized in that: above-mentioned cylindrical shell leading portion global approximation is a flat-shaped square, and the rear end of cylindrical shell leading portion is opening-like, and this opening part is distributed with bayonet socket (17) or groove.
6. a kind of safety infusion needle bucket according to claim 4, it is characterized in that: the front end of described cylindrical shell back segment is opening-like, this opening part is provided with the buckle (18) with above-mentioned bayonet socket or slot fit, and the rear end of cylindrical shell back segment is provided with the opening (19) through with the external world.
7. a safety infusion needle, is characterized in that: it comprises
One cylindrical shell (1), the both sides of described cylindrical shell respectively offer a chute (2), this chute along the axial distribution of cylindrical shell, cylinder lumen hollow, cylinder lumen is in communication with the outside by the chute of both sides, and the cavity inner wall place of barrel front end is provided with a ring-type draw-in groove (3); The chute place of cylindrical shell back segment is provided with backward hold position-limit mechanism (4);
One needle stand (5), described needle stand to be arranged in above-mentioned cylindrical shell and to slide axially in cylindrical shell; Described needle stand is made up of needle hub body (6) and the slide plate (8) that is positioned at needle hub body both sides, this slide plate side is fixedly connected with needle hub body outer wall, opposite side is connected with hand-held portion (9), hand-held portion is positioned at the outside of cylindrical shell both sides, described slide plate is positioned at above-mentioned chute and slides axially at chute, and above-mentioned needle hub body (6) inner chamber is hollow form and forms a needle stand assembly cavity (20);
Outer wall place, described needle hub body front end forms an elastic buffer holding section (10), and this elastic buffer holding section formed between cylindrical shell with above-mentioned needle stand spacing of matching with above-mentioned ring-type draw-in groove engages.
8. a kind of safety infusion needle according to claim 7, is characterized in that: the outer wall place of described needle hub body (6) offers a breach, and this breach genesis analysis is at the outer wall place of needle hub body and be communicated with above-mentioned needle stand assembly cavity (20).
9. a safety infusion needle, is characterized in that: it comprises
One cylindrical shell (1), the both sides of described cylindrical shell respectively offer a chute (2), this chute is along the axial distribution of cylindrical shell, cylinder lumen hollow, cylinder lumen is in communication with the outside by the chute of both sides, the outer wall place of barrel front end both sides is respectively equipped with a spacing preiection portion (21), and the outer wall place of cylinder back-end both sides is respectively equipped with a snap fit tabs portion (22);
One needle stand (5), described needle stand to be arranged in above-mentioned cylindrical shell and to slide axially in cylindrical shell; Described needle stand is by needle hub body (6) and be positioned at the syringe needle installation portion (7) that needle stand lives body front end and the slide plate (8) being positioned at needle hub body both sides is formed, this slide plate side is fixedly connected with needle hub body outer wall, opposite side is connected with hand-held portion (9), and hand-held portion is positioned at the outside of cylindrical shell both sides; Described slide plate is positioned at above-mentioned chute and slides axially at chute; Described syringe needle installation portion is provided with a needle tubing; The inner chamber of syringe needle installation portion with the inner space of needle hub body and the side that needle hub body inner chamber axle center is partial in the inner chamber axle center of syringe needle installation portion formed to misplace and be connected.
10. a kind of safety infusion needle according to claim 9, is characterized in that: described cylindrical shell is the strip quad flat body structure that front end is narrowed, and this cylindrical shell is assembled by upper shell (23) and lower house (24).
11. a kind of safety infusion needles according to claim 9, is characterized in that: described hand-held portion (9) medial wall place forms the snap-latch surface (25) matched with above-mentioned spacing preiection portion, snap fit tabs portion.
12. a kind of safety infusion needles according to claim 9, is characterized in that: the front end in described snap fit tabs portion is guiding surface (26), and the rear end in snap fit tabs portion is a plane (27) vertical with cylindrical shell barrel.
13. a kind of safety infusion needles according to claim 9, is characterized in that: described needle hub body inner chamber hollow also forms the pipe connection portion (28) be connected with tube for transfusion; The relief valve preventing liquid reflux is provided with in described needle stand pipe connection portion; Liquidproof reflux relief valve comprises the valve pocket (29) being arranged on described pipe connection portion leading inside; Described valve pocket inwall is provided with the water conservancy diversion convex tendon (30) of some genesis analysis; One end of water conservancy diversion convex tendon is pointed to pipeline closure and forms a circular step (31); The conical plug (32) of an independent activities is provided with in described valve pocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520652919.9U CN205055046U (en) | 2015-08-27 | 2015-08-27 | Safe formula transfusion needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520652919.9U CN205055046U (en) | 2015-08-27 | 2015-08-27 | Safe formula transfusion needle |
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| Publication Number | Publication Date |
|---|---|
| CN205055046U true CN205055046U (en) | 2016-03-02 |
Family
ID=55381657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520652919.9U Expired - Fee Related CN205055046U (en) | 2015-08-27 | 2015-08-27 | Safe formula transfusion needle |
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| Country | Link |
|---|---|
| CN (1) | CN205055046U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107376056A (en) * | 2017-08-04 | 2017-11-24 | 安徽宏宇五洲医疗器械股份有限公司 | A kind of safety transfusion needle |
| CN108939204A (en) * | 2017-04-27 | 2018-12-07 | 王祖扬 | A kind of syringe needle manual retrieving formula intravenous infusion needle |
| CN114377898A (en) * | 2021-12-02 | 2022-04-22 | 徐州佳智信息科技有限公司 | Optical fiber needle head preparation device for laser ablation operation |
-
2015
- 2015-08-27 CN CN201520652919.9U patent/CN205055046U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108939204A (en) * | 2017-04-27 | 2018-12-07 | 王祖扬 | A kind of syringe needle manual retrieving formula intravenous infusion needle |
| CN108939204B (en) * | 2017-04-27 | 2023-11-03 | 重庆医药集团威逊医疗科技有限公司 | Manual needle retraction type intravenous infusion needle |
| CN107376056A (en) * | 2017-08-04 | 2017-11-24 | 安徽宏宇五洲医疗器械股份有限公司 | A kind of safety transfusion needle |
| CN114377898A (en) * | 2021-12-02 | 2022-04-22 | 徐州佳智信息科技有限公司 | Optical fiber needle head preparation device for laser ablation operation |
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| Date | Code | Title | Description |
|---|---|---|---|
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