CN102284110A - Sheath-type safety needle guard - Google Patents
Sheath-type safety needle guard Download PDFInfo
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- CN102284110A CN102284110A CN2010102023048A CN201010202304A CN102284110A CN 102284110 A CN102284110 A CN 102284110A CN 2010102023048 A CN2010102023048 A CN 2010102023048A CN 201010202304 A CN201010202304 A CN 201010202304A CN 102284110 A CN102284110 A CN 102284110A
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- needle
- packing ring
- syringe
- hole
- syringe needle
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Abstract
The invention relates to a sheath-type safety needle guard which comprises an injector needle, wherein a plastic shell is sheathed on the injector needle; one side of the plastic shell is provided with a needle through hole through which the injector needle can go in and out, and correspondingly, the other side of the plastic shell is provided with an injector connecting port; meanwhile, a floating washer is distributed in the plastic shell near the needle through hole, and stop washer flaps are arranged on the floating washer; one side of the floating washer is provided with a central washer; the central washer is provided with a through hole; and needle point locking components are distributed between the central washer and the injector connecting port. The invention is characterized in that the end of the plastic shell with the needle through hole is provided with a connecting tube, and the extension tube is provided with a needle tube sheath component. Under the cooperation of the plastic shell and the needle tube sheath component, pollutants attached to the needle tube can be firstly effectively isolated after finishing injection, and meanwhile, the needle can be completely stored, thereby preventing the needle from accidentally piercing the personnel.
Description
Technical field
The present invention relates to a kind of needle guard, relate in particular to a kind ofly, belong to a kind of protective-cover type safety needle guard.
Background technology
With regard to existing medical apparatus and instruments, syringe is one of medical device product of present global sales maximum, and according to conservative estimation, annual only world's overall consumption quantity of disposable syringe promptly reaches more than over ten billion prop up.Yet countries in the world hospital estimates all to take place every year millions of times because of the injection needle human injury accident that syringe needle ruptures or medical personnel's misoperation is caused at present, and the emergency treatment expense that produces therefrom accumulative total has reached surprising multi-billion dollar.Therefore, European and American countries begins to carry out energetically type syringe safe in utilization." the federal safety injector method " of the U.S. stipulates that U.S.'s clinical medicine circle should adopt safety syringe as far as possible, and each hospital must consult and carry out.Medical commission of European Union is by the resolution of " encouraging (European Union) various countries' medical circle type syringe safe in utilization ".
Further, the whole world has 6,000,000,000 injection operations to use non-sterile with regard to reusable syringe or syringe needle every year approximately; The newly-increased hepatitis B virus infection case that dangerous injection causes accounts for 33% of all newly-increased hepatitis B virus infection case in the whole world, and the newly-increased patients infected hiv that the dangerous injection in medical matters place causes accounts for 5% of the newly-increased patients infected hiv sum in the whole world.It is worth noting that countries in the world hospital takes place millions of person-times because of the injection needle human injury accident that syringe needle ruptures or medical personnel's misoperation is caused is annual at present.The statistical data that American Medical Association announces shows, only the U.S. 1,000,000 person-times of medical personnel's accidents take place every year is approximately stabbed accident by syringe, the hepatitis B virus, hepatitis C virus and the AIDS viral infection that wherein have at least over thousands of people to be adhered on the syringe needle.At every turn the emergency treatment expense that produces of medical personnel that stabbed because of the syringe needle head rupture and patient is 3000 dollars per capita.
Summary of the invention
Purpose of the present invention is exactly in order to solve the above-mentioned problems in the prior art, and a kind of protective-cover type safety needle guard is provided.
Purpose of the present invention is achieved through the following technical solutions:
A kind of protective-cover type safety needle guard includes syringe needle, is arranged with the plastic cement shell on described syringe needle, and a side of described plastic cement shell is provided with the syringe needle through hole of coming in and going out for syringe needle, and the opposite side of described plastic cement shell is provided with the syringe connectivity port; Be distributed with unsteady packing ring near the syringe needle through hole in the described plastic cement shell, described unsteady packing ring is provided with stop bit packing ring lobe; Described unsteady packing ring one side is provided with central packing ring, central authorities' packing ring is provided with via hole, be distributed with the needle point Lock Part between described central packing ring and the syringe connectivity port, wherein: the end that described plastic cement shell is provided with the syringe needle through hole is provided with connection tube, and described extension is provided with the needle tubing sheath component.
Above-mentioned a kind of protective-cover type safety needle guard, wherein: described needle tubing sheath component includes backplate, is extended with on the described backplate and protects needle guard; Described backplate is provided with connecting hole, and connecting hole is connected with described connection tube.
Further, above-mentioned a kind of protective-cover type safety needle guard, wherein: described stop bit packing ring lobe has two at least, and when unsteady packing ring was off working state, stop bit packing ring lobe was H letter shape closure on the packing ring that floats.
Further, above-mentioned a kind of protective-cover type safety needle guard, wherein: described needle point Lock Part is a locking plate, and locking plate is provided with position-arresting hole, and the front end of described syringe needle is provided with position-arresting ring, and the radius of described position-arresting ring is greater than the aperture of position-arresting hole; Or the front end needle point of described syringe needle is provided with the expansion mouth, and the radius of expansion mouth is greater than the aperture of position-arresting hole.
Further, above-mentioned a kind of protective-cover type safety needle guard, wherein: constitute syringe needle needle point spatial accommodation between described central packing ring and the needle point Lock Part.
Again further, above-mentioned a kind of protective-cover type safety needle guard, wherein: the structure of described syringe connectivity port and the base front-end architecture of syringe needle adapt.
The advantage of technical solution of the present invention is mainly reflected in: by cooperating of plastic cement shell and needle tubing sheath component, at first can effectively isolate the incidental pollutant of needle tubing after finishing injection, can take in completely syringe needle simultaneously.Thus, can guarantee effectively that the syringe needle that has used can not pollute external environment condition.What is more important can prevent that used syringe needle accident from piercing through personnel, stops the pathophoresis approach of this danger.
Description of drawings
Purpose of the present invention, advantage and characteristics will illustrate by the non-limitative illustration of following preferred embodiment and explain.These embodiment only are the prominent examples of using technical solution of the present invention, and all technical schemes of taking to be equal to replacement or equivalent transformation and forming all drop within the scope of protection of present invention.In the middle of these accompanying drawings,
Fig. 1 is the organigram of plastic cement shell;
Fig. 2 is the organigram of needle tubing sheath component;
Fig. 3 is the sketch map that this protective-cover type safety needle guard is in user mode;
Fig. 4 is the organigram of unsteady packing ring;
Fig. 5 is the organigram that needle point is provided with position-arresting ring;
Fig. 6 is the organigram that needle point is provided with the expansion mouth;
Fig. 7 is the sketch map that syringe needle is subjected to the locking plate restriction;
Fig. 8 is that this protective-cover type safety needle guard is in the sketch map that needle point is taken in.
The implication of each Reference numeral is as follows among the figure:
1 syringe needle, 2 plastic cement shells
3 syringe needle through holes, 4 syringe connectivity ports
5 unsteady packing ring 6 stop bit packing ring lobes
7 central packing ring 8 via holes
9 connection tubes, 10 backplates
11 protect needle guard 12 locking plates
13 position-arresting holes, 14 position-arresting ring
15 expansion mouthful 16 spatial accommodations
17 needle points
The specific embodiment
The safe needle guard of a kind of protective-cover type syringe needle 1 shown in Fig. 1～8, include syringe needle 1, specifically: on syringe needle 1, be arranged with plastic cement shell 2, one side of plastic cement shell 2 is provided with the syringe needle through hole 3 of coming in and going out for syringe needle 1, corresponding is that the opposite side of plastic cement shell 2 is provided with syringe connectivity port 4 with it.Simultaneously, 3 punishment are furnished with the packing ring 5 that floats near the syringe needle through hole in plastic cement shell 2, and the packing ring 5 that floats is provided with stop bit packing ring lobe 6.And, be provided with central packing ring 7 in unsteady packing ring 5 one sides, central authorities' packing ring 7 is provided with via hole 8, be distributed with needle point 17 Lock Parts between central authorities' packing ring 7 and the syringe connectivity port 4, unusual part of the present invention is: an end that is provided with syringe needle through hole 3 at plastic cement shell 2 is provided with connection tube 9, and described extension is provided with the needle tubing sheath component.
As shown in Figure 2, in conjunction with the present invention's one preferred implementation, the needle tubing sheath component includes backplate 10, is extended with on the backplate 10 and protects needle guard 11.Simultaneously, be provided with connecting hole on backplate 10, connecting hole is connected with described connection tube 9.Like this, in syringe needle 1 was postponed the whole process of plastic cement shell 2 retraction, needle point 17 positions can be in fully to be protected in the needle guard 11.
And, consider that the direction of advance after can taking in needle point 17 is carried out an effective stop bit, stop bit packing ring lobe 6 has two at least, and when the packing ring 5 that floats was off working state, stop bit packing ring lobe 6 was H letter shape closure on unsteady packing ring 5, promptly as shown in Figure 4.When syringe needle 1 withdrawal, stop bit packing ring lobe 6 produces deformation, after the front end of plastic cement shell 2 is finished taking in of needle point 17, the distance of the diameter of needle point 17 after less than deformation between the packing ring lobe, needle point 17 can't stretch out once more, needle point 17 can be sealed in the plastic cement shell 2, promptly as shown in Figure 7.
Skid off from plastic cement shell 2 when preventing that syringe needle 1 from prolonging plastic cement shell 2 and retreat, needle point 17 Lock Parts are locking plate 12, locking plate 12 is provided with position-arresting hole 13, the front end of described syringe needle 1 is provided with position-arresting ring 14, the radius of described position-arresting ring 14 is greater than the aperture of position-arresting hole 13, promptly as shown in Figure 5.Certainly, as shown in Figure 6: considering the different manufacturing process to syringe needle 1, can also be that front end needle point 17 at syringe needle 1 is provided with expansion mouthfuls 15, and the radius of expansion mouthfuls 15 is greater than the aperture of position-arresting hole 13.Thus, can be to the qualification of retreating of syringe needle 1, promptly as shown in Figure 7 with regard to line correlation.
And,, constitute syringe needle 1 needle point 17 spatial accommodations 16 between central packing ring 7 and needle point 17 Lock Parts for the needle point 17 to syringe needle 1 carries out preferable taking in.Moreover, do not slide easily in order during injecting, not allow plastic cement shell 2 prolong syringe needle 1, to be convenient to user and to use, the base front-end architecture of the structure of syringe connectivity port 4 and syringe needle 1 adapts.
Be used for seeing in conjunction with of the present invention making, in existing injection, often need the medicament that some are liquid to mix, form together injection, the therefore process that exists a liquid to shift behind a kind of mixed solution with pulverous medicament.Such as, will be in the safe needle guard of protective-cover type syringe needle 1 usefulness in Fig. 3 state and insert in the container that holds liquid pharmaceutical and extract liquid.Inject the container that holds Powdered medicament afterwards.Extracting mixed liquor at last injects.During this period, because the existence of needle tubing sheath component the drawn needle pipe racks can not occur and go out container bottle material beyond the Great Wall, guaranteed injection safety.
Again further, in case after having carried predetermined close to patient, shortly will be when patient extracts out on one's body syringe needle 1.User advances plastic cement shell 2 toward the injection site, move to patient's skin limit.Afterwards, continue to extract syringe needle 1 out, make needle point 17 from patient skin, bounce back and enter in the plastic cement shell 2.Simultaneously, in this process, because the needle tubing of syringe needle 1 is outside equipped with and protects needle guard 11, the injection back incidental pollutant of needle tubing institute possibility are all in protecting needle guard 11, particularly needle point 17 is protected needle guard 11 fully and is taken in, the unexpected situation that pierces through user can in the process of taking in, not occur, realize first anti-pollution insurance.
Then, when needle point 17 retracted to needle point 17 spatial accommodations 16, stop bit packing ring lobe 6 was closed and deformation is taken place, and towards the distortion of needle point 17 retraction direction, has sealed syringe needle through hole 3.Then, be accompanied by the retraction of needle point 17, syringe needle embeds central packing ring 7 under the position-arresting ring 14 or the effect of expansion mouth 15, realize preferable taking in, promptly as shown in Figure 8.And, even user overexerts, syringe needle 1 being continued retraction cause needle point 17 in central packing ring 7, to break away from, needle point 17 can also be under the effect of position-arresting ring 14 or expansion mouthfuls 15, and the position-arresting hole 13 on locked 12 carries out offset qualification.Protect needle point 17 and be in the spatial accommodation 16, outside not being exposed to.Thus, can strengthen the security protection of syringe needle effectively, realize second anti-pollution insurance.
Moreover, even the plastic cement shell props up when floating packing ring 5 at the stressed needle point 17 that causes syringe needle 1 of later stage, because deformation has taken place in stop bit packing ring lobe 6, the distance of the diameter of needle point 17 after greater than deformation between the packing ring lobe, needle point 17 can't stretch out once more, has guaranteed safety.
By above-mentioned character express also in conjunction with the accompanying drawings as can be seen, after adopting the present invention, by cooperating of plastic cement shell and needle tubing sheath component, after finishing injection, at first can effectively isolate the incidental pollutant of needle tubing, can take in completely syringe needle simultaneously.Thus, can guarantee effectively that the syringe needle that has used can not pollute external environment condition.What is more important can prevent that used syringe needle accident from piercing through personnel, stops the pathophoresis approach of this danger.Simultaneously, simple structure of the present invention is convenient to extensive manufacturing, is worthy to be popularized.
Claims (6)
1. a protective-cover type safety needle guard includes syringe needle, is arranged with the plastic cement shell on described syringe needle, and a side of described plastic cement shell is provided with the syringe needle through hole of coming in and going out for syringe needle, and the opposite side of described plastic cement shell is provided with the syringe connectivity port; Be distributed with unsteady packing ring near the syringe needle through hole in the described plastic cement shell, described unsteady packing ring is provided with stop bit packing ring lobe; Described unsteady packing ring one side is provided with central packing ring, central authorities' packing ring is provided with via hole, be distributed with the needle point Lock Part between described central packing ring and the syringe connectivity port, it is characterized in that: the end that described plastic cement shell is provided with the syringe needle through hole is provided with connection tube, and described extension is provided with the needle tubing sheath component.
2. a kind of protective-cover type safety needle guard according to claim 1, it is characterized in that: described needle tubing sheath component includes backplate, is extended with on the described backplate and protects needle guard; Described backplate is provided with connecting hole, and connecting hole is connected with described connection tube.
3. a kind of protective-cover type safety needle guard according to claim 1 is characterized in that: described stop bit packing ring lobe has two at least, and when unsteady packing ring was off working state, stop bit packing ring lobe was H letter shape closure on the packing ring that floats.
4. a kind of protective-cover type safety needle guard according to claim 1, it is characterized in that: described needle point Lock Part is a locking plate, locking plate is provided with position-arresting hole, and the front end of described syringe needle is provided with position-arresting ring, and the radius of described position-arresting ring is greater than the aperture of position-arresting hole; Or the front end needle point of described syringe needle is provided with the expansion mouth, and the radius of expansion mouth is greater than the aperture of position-arresting hole.
5. a kind of protective-cover type safety needle guard according to claim 1 is characterized in that: constitute syringe needle needle point spatial accommodation between described central packing ring and the needle point Lock Part.
6. a kind of protective-cover type safety needle guard according to claim 1 is characterized in that:
The structure of described syringe connectivity port and the base front-end architecture of syringe needle adapt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102023048A CN102284110A (en) | 2010-06-18 | 2010-06-18 | Sheath-type safety needle guard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102023048A CN102284110A (en) | 2010-06-18 | 2010-06-18 | Sheath-type safety needle guard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102284110A true CN102284110A (en) | 2011-12-21 |
Family
ID=45331044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102023048A Pending CN102284110A (en) | 2010-06-18 | 2010-06-18 | Sheath-type safety needle guard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102284110A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03191965A (en) * | 1989-12-21 | 1991-08-21 | Hiroshi Nakamura | Indwelling needle |
| US20040162526A1 (en) * | 2001-04-04 | 2004-08-19 | Vaillancourt Vincent L. | Needle Guard |
| CN101112638A (en) * | 2006-07-27 | 2008-01-30 | 贝克顿·迪金森公司 | Vessel having a safeguard device and introducing needle component |
| CN101628144A (en) * | 2002-06-20 | 2010-01-20 | 贝克顿·迪金森公司 | Catheter and introducer needle assembly with needle shield |
| CN201719644U (en) * | 2010-06-18 | 2011-01-26 | 苏州康益明华生物医药科技有限公司 | Jacket type safety needle protector |
-
2010
- 2010-06-18 CN CN2010102023048A patent/CN102284110A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03191965A (en) * | 1989-12-21 | 1991-08-21 | Hiroshi Nakamura | Indwelling needle |
| US20040162526A1 (en) * | 2001-04-04 | 2004-08-19 | Vaillancourt Vincent L. | Needle Guard |
| CN101628144A (en) * | 2002-06-20 | 2010-01-20 | 贝克顿·迪金森公司 | Catheter and introducer needle assembly with needle shield |
| CN101112638A (en) * | 2006-07-27 | 2008-01-30 | 贝克顿·迪金森公司 | Vessel having a safeguard device and introducing needle component |
| CN201719644U (en) * | 2010-06-18 | 2011-01-26 | 苏州康益明华生物医药科技有限公司 | Jacket type safety needle protector |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111221 |