CN205287134U - High reliability safety needle convenient to assemble - Google Patents
High reliability safety needle convenient to assemble Download PDFInfo
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- CN205287134U CN205287134U CN201521119124.8U CN201521119124U CN205287134U CN 205287134 U CN205287134 U CN 205287134U CN 201521119124 U CN201521119124 U CN 201521119124U CN 205287134 U CN205287134 U CN 205287134U
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- needle
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- protective cover
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Abstract
The utility model discloses a high reliability safety needle convenient to assemble, including needle file, needle tubing, sheath to and encircle the needle -prick prevention protection mechanism who constitutes by needle -prick prevention safety cover and screens, needle -prick prevention safety cover and screens ring integrated into one piece, and be equipped with the elasticity bitch chain that can overturn between the two, screens ring suit is equipped with the assembly and increases tough opening in the outside whole body of needle file on the direction of height of screens ring to be equipped with the through -hole that is used for locking on the outer wall of its tip, the needle -prick prevention safety cover is interior hollow structure, is equipped with the elasticity bayonet catch who is used for fixed needle tubing on its inner chamber wall, is equipped with the hook portion that can match the back -off with the through -hole on the screens ring on the oral area terminal surface of needle -prick prevention safety cover bottom. The utility model discloses a double -locked has reached the outer needle that prevents anticipating and has stung the mesh that endangers and prevent reusing to injection safety has been improved for clinical use.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, specifically a kind of high-reliability safety pin easy to assembly.
Background technology
It is injected at prevention and treatment disease aspect is made that major contribution. And accomplish these, and it being necessary for using asepsis injector and aseptic syringe needle, the injection equipment after using should do correct process, to reach safety injection. According to the statistics of World Health Organization (WHO), injection for curing 12,000,000,000 person-times is about implemented in the whole world every year, and wherein about 50% is unsafe, and the situation of China is no exception. The factor causing unsafe injection is a lot, wherein especially desirable be concerned with syringe, injection needle reuse the occupational exposure risk with medical personnel. In recent years, relevant expert points out, the degree of danger of medical worker's occupational infection depends on blood borne pathophorous prevalence rate in crowd. China is one of hepatitis B state occurred frequently, and the carrier of hepatitis B virus there are about 1.2 hundred million, and the infection rate of hepatitis C also reaches 1.7%, and the popular of acquired immune deficiency syndrome (AIDS) also has been enter into the quick rise period in China simultaneously. Therefore, the medical worker of China is faced with serious occupational exposure danger. Questionnaire results according to 13 hospitals in Beijing shows, 432 probationer nurses occurred the pin accidental puncture that patient etc. used to oneself health 1111 times altogether in 10 months, on average everyone monthly 2.6 times, some have caught the Hematogenic infectious disease such as hepatitis and acquired immune deficiency syndrome (AIDS) due to unexpected injury.
In order to prevent such accidental needle sticks sticks injuries; people have had been made by many effort; as: between syringe and entry needle, design has transition two pass joint; the side of transition two pass joint is provided with anti-stab protective cover; transition two pass joint is separately installed with entry needle and syringe up and down; after pin uses, anti-stab protective cover is covered needle point by user manual operation. This design to some extent solves the anti-stab risk of user, but introduce new risk, namely owing to setting up transition two pass joint, make to exist between syringe and entry needle the liquid storage space that one section of medicinal liquid can not be injected, liquid storage space increases in other words, causing that liquor residue amount is big, even liquor residue amount exceeds standard, and is unsatisfactory for the defect of the requirement of relevant injection equipment standard.As: anti-stab protective cover is designed to Split type structure, and it is formed by hand assembled by needle housing (or needle guard) and the collar, this design, and structure is complicated, and part is many, and assembling procedure is many, thus causing that initial contaminating bacteria increases, is not easy to quality of production control. Additionally, the retraction type self-destroyed syringe of people's research, after a procedure, in needle tip retracts to syringe cylinder body, well needle point can will be covered and protect to prevent accidental needle sticks, but, due to the high expensive of retraction type self-destroyed syringe, not yet can promote widely rapidly in China at present.
In view of this type of all factor, therefore it is necessary design a kind of new relative inexpensiveness, high-reliability safety pin easy to assembly, to solve these defects.
Summary of the invention
The purpose of this utility model is in that for the deficiencies in the prior art, it is provided that a kind of pin not changing conventional injection equipment directly coordinates installation, liquid medicine injection low-residual, installation portion to prevent spinning, being easy to control, high-reliability safety pin easy to assembly with unlocking prevention buckling and locking device, simple in construction, quality with device.
This utility model adopts the technical scheme that: a kind of high-reliability safety pin easy to assembly, including needle stand, needle tubing, sheath, described syringe rear end portion passes through the gluing needle stand inner chamber that is fixedly installed in, and described sheath removable hood is contained in the top of needle stand and covers needle tubing; It also includes the anti-acupuncture protection mechanism being made up of anti-acupuncture protective cover and screens ring, described anti-acupuncture protective cover and screens ring are one-body molded, and it is provided with turnover elastic bitch chain between the two, described screens ring set is loaded on the outside whole body of needle stand, the short transverse of screens ring is provided with the toughness reinforcing opening of assembling, and in the outside wall surface of its end, is provided with the through hole for locking; Described anti-acupuncture protective cover is interior hollow structure, and its inner chamber wall is provided with the Elastic buckle for fixing needle tubing, and the oral area end face of anti-acupuncture protective cover bottom is provided with the hook portion that can mate back-off with the through hole on screens ring.
The inner chamber of described screens ring is provided with first annular chamber and the second annular chamber, first annular chamber and the second mutual UNICOM of annular chamber, and is separated by by protuberance in annular between the two; In the annular of the outside screens ring relatively of described needle stand, protuberance is correspondingly arranged on the annular groove of mutual snap lock.
In described first annular chamber, the second annular chamber and annular, protuberance is concentric, and first annular chamber diameter is more than the second ring lumen diameter, and in annular, the longitudinally disposed height of protuberance is at least 1.5mm.
Described needle stand is provided externally with the first enlarged diameter portion and Second bobbin diameter increase portion, and described annular groove is between two enlarged diameter portion.
The internal face of described second annular chamber is uniformly provided with several bar shaped convexes stupefied; It is stupefied that the surface, Second bobbin diameter increase portion of described needle stand is uniformly provided with several bar shaped evaginations, and described bar shaped convex is stupefied must not be rotated to limit screens ring with the stupefied mutual fastening of bar shaped evagination on needle stand.
The side of described anti-acupuncture protective cover is provided with can receive the storage opening that needle tubing enters, and described storage opening extends to top from the bottom end opening place of anti-acupuncture protective cover.
Described acupuncture guard shield upset bonnet is loaded on screens ring, and the fitting opening on screens ring is on the middle position below anti-acupuncture protective cover opening; Described hook portion extends the through hole being through at screens ring and forms back-off, and the bottom end actinal surface of anti-acupuncture protective cover overlaps with the upper end actinal surface of screens ring.
Described anti-acupuncture protective cover is provided with, along the both sides of storage opening, the safe plate washer of wing stretched respectively to both sides, and the spinal column of the anti-acupuncture protective cover at corresponding safe plate washer place is safety handle.
The central angle of the toughness reinforcing opening of described assembling is less than 20 degree.
The quantity of described Elastic buckle at least 2.
The beneficial effects of the utility model are:
(1) the anti-acupuncture protection mechanism that anti-acupuncture protective cover and screens ring are constituted is that injection mo(u)lding is integrated, and simple in construction decreases assembling link, decreases sterilising prods initial contaminating bacteria before sterilization simultaneously.
(2) screens ring is provided with the toughness reinforcing opening of the assembling less than 20 degree in its height direction, so sufficiently small opening is firm to guarantee that screens ring coordinates with needle stand, it is simultaneously provided with opening and increases the toughness of screens ring so that assembling, and avoid the installation portion of safty pin risk of cracking or even inefficacy after storage a period of time in market.
(3) anti-acupuncture guard shield bottom surface oral area end face downwardly extends it is provided with two symmetrical hook portions; formed with the two of screens ring symmetrical through holes and mate back-off; cannot rollback; there is anti-artificial malice unlocking function; namely once start anti-acupuncture guard shield and coordinating with screens ring, not only sharp tip guard shield is got up, prevent and be again turned on protective cover; thus realizing the harm of anti-medical personnel's accidental needle sticks, effectively prevent reusing of syringe needle simultaneously.
(4) screens ring is equipped with the corresponding installation portion of needle stand that mutually corresponding, restriction mutually several are inside and outside convex stupefied, to prevent the installation portion of screens ring and needle stand from spinning, it is simple to medical worker's operation.
(5) this utility model is adopted, using the teaching of the invention it is possible to provide a kind of have safty pin easy to assembly and higher-security concurrently.
Accompanying drawing explanation
Fig. 1 is planar structure schematic diagram of the present utility model.
Fig. 2 is the structural representation of needle stand in this utility model.
Fig. 3 is the structural representation of anti-acupuncture protection mechanism in this utility model.
Fig. 4 is the left view of anti-acupuncture protection mechanism.
Fig. 5 is the right view of anti-acupuncture protection mechanism.
Fig. 6 is the top view of anti-acupuncture protection mechanism.
Fig. 7 is that this utility model supports the use (before use) with syringe, takes out the state diagram of needle tip protection sleeve.
Fig. 8 is that this reality is novel to be supported the use with syringe (injecting complete), and needle point is housed the state diagram in also kayser chamber in the inner by anti-acupuncture protective cover.
In figure: 1, needle stand; 2, needle tubing; 3, sheath; 4, anti-acupuncture protection mechanism; 11, annular groove; 12, the first enlarged diameter portion; 13, Second bobbin diameter increase portion; 131, bar shaped evagination is stupefied; 41, anti-acupuncture protective cover; 411, Elastic buckle; 412, hook portion; 413, storage opening; 414, safe plate washer; 415, safety handle; 42, screens ring; 421, first annular chamber; 4211, bar shaped convex is stupefied; 422, the second annular chamber; 423, protuberance in annular; 424, toughness reinforcing opening is assembled; 425, through hole; 43, elastic bitch chain.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in detail.
As it is shown in figure 1, a kind of high-reliability safety pin easy to assembly, it includes needle stand 1, needle tubing 2, sheath 3 and anti-acupuncture protection mechanism 4. Wherein anti-acupuncture protection mechanism 4 is made up of anti-acupuncture protective cover 41 and screens ring 42; anti-acupuncture protective cover 41 is that injection mo(u)lding is integrated with screens ring 42; being provided with elastic bitch chain 43 between, anti-acupuncture protective cover 41 can overturn in a longitudinal direction relative to screens ring 42. Screens ring 42 is fastened in the outside whole body of needle stand 1, and needle tubing 2 rearward end is fixedly installed in needle stand 1 inner chamber by gluing, and sheath 3 cover is contained in above needle stand 1, covers needle tubing.
As in figure 2 it is shown, needle stand 1 is provided externally with the first enlarged diameter portion 12 and Second bobbin diameter increase portion 13, forming an annular groove 11 between two enlarged diameter portion, the surface, Second bobbin diameter increase portion 13 of needle stand 1 is uniformly provided with several bar shaped evaginations stupefied 131.
As shown in Figures 3 to 6, screens ring 42 is provided with central angle in the height direction less than 200The toughness reinforcing opening 424 of assembling, to improve the assembling toughness of screens ring 42, and sufficiently small opening also ensure that assembling kayser firm. The inner chamber of screens ring 42 is provided with protuberance 423 in the annular of first annular chamber the 421, second annular chamber 422 and snap lock corresponding to the annular groove 11 of described needle stand 1. In annular, the longitudinally disposed height of protuberance 423 is at least 1.5mm, makes screens ring 42 sufficiently large with the area that needle stand 1 assembling engages lock portion, to guarantee that kayser is firm. Being separated by protuberance 423 phase in annular, be interconnected again between first annular chamber 421 with the second annular chamber 422, its three is concentric, and first annular chamber 423 diameter is more than the second annular chamber 422 diameter. The internal face of the second annular chamber 422 of screens ring 42 is uniformly provided with several bar shaped convexes stupefied 4211. The top of screens ring 42 outside wall surface is outwardly in its underpart, and top is provided with two symmetrical through holes 425 on the position protrude from its underpart. Hollow in anti-acupuncture protective cover 41, inner chamber wall is provided with at least 1 to 2 Elastic buckle 411 of fixed needle, and is provided with, to extension on length direction, the storage opening 413 that can receive needle tubing 2 entrance from port, bottom surface. Anti-acupuncture protective cover 41 bottom surface oral area end face downwardly extends be provided with and form, with the two of screens ring 42 symmetrical through holes 425, two the symmetrical hook portions 412 mating back-off; and anti-acupuncture protective cover 41 is provided with, along the both sides that can receive the storage opening 413 that needle tubing 2 enters, the safe plate washer 414 of wing stretched respectively to both sides, and the spinal column of the anti-acupuncture protective cover at corresponding safe plate washer 414 place is safety handle.
When specifically installing, screens ring 42 by protuberance in its annular 423 with annular groove 11 snap lock needle stand 1 outside in the periphery of needle stand 1, and both must not be spinned by several bar shaped convexes stupefied 4211 of the second annular chamber 422 and several mutual restrictions of bar shaped evaginations stupefied 131 in Second bobbin diameter increase portion. Additionally, be provided with in the height direction less than 20 by screens ring 420The toughness reinforcing opening 424 of assembling, to improve the toughness of screens ring, it is to avoid the machinery occurred in market assembles by force and causes that it ftractures, it is simple to Automated assembly, it is simple to quality control, simultaneously sufficiently small opening also ensure that assembling kayser firm.
During safty pin concrete operations, as shown in Figure 7, Figure 8, do not change the injection operation custom of medical worker, first by safty pin and the supporting installation of syringe, take out sheath, carry out injection operation by aseptic manipulation. After injection operation; the dead-man's handle of the hand-held anti-acupuncture protective cover 41 of medical personnel; anti-acupuncture guard shield 41 is overturn lid and is loaded on screens ring 42; now; the needle tubing 2 exposed and needle point house in anti-acupuncture protective cover 41 completely; the Elastic buckle 411 of anti-acupuncture protective cover 41 inner chamber starts automatically by needle tubing locking, and meanwhile, screens ring 41 is less than 200Assemble toughness reinforcing opening 424 be on the middle position below anti-needle housing protective cover 41 opening. The bottom end actinal surface of acupuncture protective cover 41 overlaps with the upper end actinal surface of screens ring 42, and the hook portion 412 of the bottom surface of anti-acupuncture protective cover 41 extends the through hole 425 being through at screens ring 42 and forms back-off, and cannot be again turned on.With after safty pin achieve double locking, reached the harm of anti-accidental needle sticks and the anti-purpose reused, thus improve injection safety for Clinical practice.
Of the present utility model ultimate principle, principal character and advantage have more than been shown and described. Those of ordinary skill in the art is not it should be appreciated that above-described embodiment limits protection domain of the present utility model in any form, and all employings are equal to the technical scheme that the modes such as replacement obtain, and all fall within protection domain of the present utility model.
This utility model is not directed to part and all same as the prior art prior art maybe can be adopted to be realized.
Claims (10)
1. a high-reliability safety pin easy to assembly, including needle stand, needle tubing, sheath, described syringe rear end portion passes through the gluing needle stand inner chamber that is fixedly installed in, and described sheath removable hood is contained in the top of needle stand and covers needle tubing; It is characterized in that: also include the anti-acupuncture protection mechanism being made up of anti-acupuncture protective cover and screens ring, described anti-acupuncture protective cover and screens ring are one-body molded, and it is provided with turnover elastic bitch chain between the two, described screens ring set is loaded on the outside whole body of needle stand, the short transverse of screens ring is provided with the toughness reinforcing opening of assembling, and in the outside wall surface of its end, is provided with the through hole for locking; Described anti-acupuncture protective cover is interior hollow structure, and its inner chamber wall is provided with the Elastic buckle for fixing needle tubing, and the oral area end face of anti-acupuncture protective cover bottom is provided with the hook portion that can mate back-off with the through hole on screens ring.
2. high-reliability safety pin easy to assembly according to claim 1, it is characterized in that: the inner chamber of described screens ring is provided with first annular chamber and the second annular chamber, first annular chamber and the second mutual UNICOM of annular chamber, and be separated by by protuberance in annular between the two; In the annular of the outside screens ring relatively of described needle stand, protuberance is correspondingly arranged on the annular groove of mutual snap lock.
3. high-reliability safety pin easy to assembly according to claim 2, it is characterized in that: in described first annular chamber, the second annular chamber and annular, protuberance is concentric, and first annular chamber diameter is more than the second ring lumen diameter, in annular, the longitudinally disposed height of protuberance is at least 1.5mm.
4. the high-reliability safety pin easy to assembly according to Claims 2 or 3, it is characterised in that: described needle stand is provided externally with the first enlarged diameter portion and Second bobbin diameter increase portion, and described annular groove is between two enlarged diameter portion.
5. high-reliability safety pin easy to assembly according to claim 4, it is characterised in that: the internal face of described second annular chamber is uniformly provided with several bar shaped convexes stupefied; It is stupefied that the surface, Second bobbin diameter increase portion of described needle stand is uniformly provided with several bar shaped evaginations, and described bar shaped convex is stupefied must not be rotated to limit screens ring with the stupefied mutual fastening of bar shaped evagination on needle stand.
6. high-reliability safety pin easy to assembly according to claim 1, it is characterised in that: the side of described anti-acupuncture protective cover is provided with can receive the storage opening that needle tubing enters, and described storage opening extends to top from the bottom end opening place of anti-acupuncture protective cover.
7. high-reliability safety pin easy to assembly according to claim 1, it is characterised in that: described acupuncture guard shield upset bonnet is loaded on screens ring, and the fitting opening on screens ring is on the middle position below anti-acupuncture protective cover opening; Described hook portion extends the through hole being through at screens ring and forms back-off, and the bottom end actinal surface of anti-acupuncture protective cover overlaps with the upper end actinal surface of screens ring.
8. high-reliability safety pin easy to assembly according to claim 1; it is characterized in that: described anti-acupuncture protective cover is provided with, along the both sides of storage opening, the safe plate washer of wing stretched respectively to both sides, and the spinal column of the anti-acupuncture protective cover at corresponding safe plate washer place is safety handle.
9. high-reliability safety pin easy to assembly according to claim 1, it is characterised in that: the central angle of the toughness reinforcing opening of described assembling is less than 20 degree.
10. high-reliability safety pin easy to assembly according to claim 1, it is characterised in that: the quantity of described Elastic buckle at least 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521119124.8U CN205287134U (en) | 2015-12-30 | 2015-12-30 | High reliability safety needle convenient to assemble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521119124.8U CN205287134U (en) | 2015-12-30 | 2015-12-30 | High reliability safety needle convenient to assemble |
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| Publication Number | Publication Date |
|---|---|
| CN205287134U true CN205287134U (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521119124.8U Active CN205287134U (en) | 2015-12-30 | 2015-12-30 | High reliability safety needle convenient to assemble |
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| CN (1) | CN205287134U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106730172A (en) * | 2016-11-11 | 2017-05-31 | 贝普医疗科技有限公司 | A kind of safe injection needle |
| CN108210022A (en) * | 2016-12-21 | 2018-06-29 | 上海康德莱企业发展集团股份有限公司 | A kind of safety type thoracic cavity needle |
| CN110801556A (en) * | 2019-11-20 | 2020-02-18 | 鲍雪花 | Medical folding syringe |
| WO2022121091A1 (en) * | 2020-12-11 | 2022-06-16 | 张亚平 | Safety hypodermic needle |
| WO2022233081A1 (en) * | 2021-05-06 | 2022-11-10 | 山东威高集团医用高分子制品股份有限公司 | Syringe and needle hub having protective cover |
-
2015
- 2015-12-30 CN CN201521119124.8U patent/CN205287134U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106730172A (en) * | 2016-11-11 | 2017-05-31 | 贝普医疗科技有限公司 | A kind of safe injection needle |
| CN108210022A (en) * | 2016-12-21 | 2018-06-29 | 上海康德莱企业发展集团股份有限公司 | A kind of safety type thoracic cavity needle |
| CN108210022B (en) * | 2016-12-21 | 2023-11-17 | 上海康德莱企业发展集团股份有限公司 | Safe type chest needle |
| CN110801556A (en) * | 2019-11-20 | 2020-02-18 | 鲍雪花 | Medical folding syringe |
| WO2022121091A1 (en) * | 2020-12-11 | 2022-06-16 | 张亚平 | Safety hypodermic needle |
| WO2022233081A1 (en) * | 2021-05-06 | 2022-11-10 | 山东威高集团医用高分子制品股份有限公司 | Syringe and needle hub having protective cover |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |