CN208877582U - A kind of puncture-proof syringe - Google Patents
A kind of puncture-proof syringe Download PDFInfo
- Publication number
- CN208877582U CN208877582U CN201820507843.4U CN201820507843U CN208877582U CN 208877582 U CN208877582 U CN 208877582U CN 201820507843 U CN201820507843 U CN 201820507843U CN 208877582 U CN208877582 U CN 208877582U
- Authority
- CN
- China
- Prior art keywords
- block
- needle
- plane
- ratchet wheel
- syringe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model proposes a kind of puncture-proof syringes, the detachable needle of the utility model is mounted on the lower section of the ratchet wheel block in needle tubing, movable block on detachable needle can be put in the sliding slot between ratchet wheel block, spring is installed between the syringe needle seat ring and tail cap of detachable needle, detachable needle is moved upwardly by under the elastic force effect of spring and contradicts in the bottom of ratchet wheel block in this way, drive block is installed above ratchet wheel block in needle tubing, the link block on drive block can also put in sliding slot and can be inconsistent with movable block.Piston push rod is pressed to squeeze drive block and detachable needle can be made to retract in needle tubing using forward and backward, singlehanded operation can be completed, effectively improve medical work efficiency, while medical profession risk can also be evaded well.
Description
Technical field
The utility model relates to the field of medical instrument technology, especially a kind of puncture-proof syringe.
Background technique
Syringe is common medical instrument, can consider safety and convenience in design, existing injector for medical purpose
Structure includes needle tubing, syringe needle, needle cap and piston substantially, and suction is realized by piston, and syringe needle is protected by needle cap to prevent
Needle is stabbed.Occur in spite of novel syringe, is mounted with certain protective device for syringe needle, but can not mention using
High working efficiency, or even bring certain burden.Syringe using rear to generally all protection treatment measures are not done to syringe needle, in medical treatment
The event accidentally injured by needle point can occur when garbage reclamation processing, injuring caused by nurse and medical waste recycling personnel will increase
The risk of medical matters industry.With regard to problem above, we have invented a kind of puncture-proof syringe, which increases on the basis of existing
Ratchet wheel block and drive block equipped with similar ratchet, enable syringe needle to hide in time when not used or after, have reached certain
Anti-stabbing effect, while not changing the function of original syringe aspiration medicinal liquid and liquid medicine injection.
Utility model content
The utility model proposes a kind of puncture-proof syringe, piston push rod is pressed to squeeze drive block and detachable needle can be made to exist
It is retracted in needle tubing using forward and backward, singlehanded can complete operation, effectively improve medical work efficiency, while can also advise well
Keep away medical profession risk.
The technical solution of the utility model is achieved in that a kind of puncture-proof syringe, includes needle tubing, from needle tubing top
The piston push rod of mouth installation and the rubber stopper for being mounted on piston push rod end, the needle tubing is connected with tail cap at base opening, described
The bottom of tail cap is equipped with syringe needle mouth；On the inner wall of the needle tubing along the circumferential direction be equipped with multiple ratchet wheel blocks, every two ratchet wheel block it
Between be sliding slot；Detachable needle is installed below ratchet wheel block in the needle tubing, the detachable needle includes syringe needle seat ring, needle
Headstock circle is equipped with syringe needle and syringe needle seat ring towards tail cap direction and is equipped with multiple movable blocks towards needle tubing direction, opens on the syringe needle seat ring
Equipped with the through-hole to connect with syringe needle, the syringe needle seat ring outer peripheral surface is fitted closely with needle interior wall, and the syringe needle can be by syringe needle
Mouth stretches to outside tail cap, and the movable block can put in sliding slot and can be up and down；In the bottom of syringe needle seat ring in the needle tubing
Spring is equipped between tail cap；Drive block is installed above ratchet wheel block in the needle tubing, offered on the drive block with
The coaxial through-hole of needle tubing, the drive block are extended with link block downward, and the link block can be up and down in sliding slot, link block
Can be inconsistent with movable block, drive block moves down by link block driving movable block and movable block can be made to contradict at the bottom of ratchet wheel block
Face.
Further have, the top surface of the movable block is equipped with inclined first inclined-plane, and the bottom surface of the ratchet wheel block is equipped with limit
Position card slot, the top surface of the limit card slot are inclined second inclined-plane, the inclined direction phase on first inclined-plane and the second inclined-plane
Together, movable block fits and can be fixed in the limit card slot of ratchet wheel block by the first inclined-plane and the second inclined-plane.
Further have, the bottom surface of the ratchet wheel block is equipped with third inclined-plane, the inclination on the third inclined-plane and the first inclined-plane
Direction is identical.
Further have, the bottom surface of the link block is equipped with the 4th inclined-plane, the inclination on the 4th inclined-plane and the first inclined-plane
Direction is opposite.
Further have, the inner wall of the needle tubing has been additionally provided with the fixed drive block of limit above ratchet wheel block and has continued up
Mobile block.
Using above-mentioned technical proposal, the utility model has the following beneficial effects:
The detachable needle of the utility model is mounted on the lower section of the ratchet wheel block in needle tubing, and the movable block on detachable needle can be stretched
Into in the sliding slot between ratchet wheel block, spring is installed, such detachable needle is in bullet between the syringe needle seat ring and tail cap of detachable needle
It is moved upwardly by and contradicts under the elastic force effect of spring and drive block is installed above ratchet wheel block in the bottom of ratchet wheel block, needle tubing,
Link block on drive block can also put in sliding slot and can be inconsistent with movable block, and driving is squeezed by pressing piston push rod
Block, drive block rely on the link block Compressive activities block of bottom, and the syringe needle seat ring of such movable block bottom can be moved down and be squeezed
Spring contraction, movable block can be contradicted after rotating a certain angle when moving down into the bottom position of ratchet wheel block in the bottom of ratchet wheel block,
At this moment the syringe needle of detachable needle protruding from the syringe needle mouth of tail cap can take out medical fluid and liquid medicine injection, and syringe uses
Afterwards, it then presses piston push rod and carrys out Compressive activities block to squeeze drive block, movable block and syringe needle seat ring can be rotated further by certain angle,
The piston push rod pressed is unclamped when movable block is in runner position, spring squeezes needle holder circle and moves up, and movable block is again
It puts in sliding slot, at this moment syringe needle is collapsible into tail cap.The pressing operations of the utility model can be can be completed by one-handed performance, be subtracted
The work load of light nurse, reduces the medical-risk of needlestick injuries.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the utility model when in use；
Fig. 2 is that the utility model is using forward and backward structural schematic diagram；
Fig. 3 is the fractionation structural representation of the utility model；
Wherein: 1. needle tubings, 2. piston push rods, 3. rubber stoppers, 4. tail caps, 5. syringe needle mouths, 6. ratchet wheel blocks, 7. sliding slots, 8. are lived
Dynamic syringe needle, 9. syringe needle seat rings, 10. syringe needles, 11. movable blocks, 12. through-holes, 13. springs, 14. drive blocks, 15. link blocks, 16. the
One inclined-plane, 17. limit card slots, 18. second inclined-planes, 19. third inclined-planes, 20. the 4th inclined-planes, 21. blocks.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, Figure 2 and Figure 3, the piston that a kind of puncture-proof syringe includes needle tubing 1, is installed from 1 top opening of needle tubing
Push rod 2 and the rubber stopper 3 for being mounted on 2 end of piston push rod, the needle tubing 1 are threadedly connected with tail cap 4 at base opening,
The bottom of the tail cap 4 is equipped with syringe needle mouth 5；Multiple ratchet wheel blocks 6, every two are along the circumferential direction equipped on the inner wall of the needle tubing 1
It is sliding slot 7 between ratchet wheel block 6；Detachable needle 8 is installed in the lower section of ratchet wheel block 6 in the needle tubing 1, the detachable needle 8 wraps
It has included syringe needle seat ring 9, syringe needle seat ring 9 and has been equipped with syringe needle 10 and syringe needle seat ring 9 towards 1 direction of needle tubing equipped with multiple towards 4 direction of tail cap
Movable block 11 offers the through-hole 12 to connect with syringe needle 10,9 outer peripheral surface of syringe needle seat ring and needle on the syringe needle seat ring 9
1 inner wall of pipe fits closely, and the syringe needle 10 can be stretched to outside tail cap 4 by syringe needle mouth 5, and the movable block 11 can be put in sliding slot 7
And it can be up and down；Spring 13 is equipped between the bottom and tail cap 4 of syringe needle seat ring 9 in the needle tubing 1；In the needle tubing 1
The top of ratchet wheel block 6 is equipped with drive block 14, and the through-hole 12 coaxial with needle tubing 1, the driving are offered on the drive block 14
Block 14 is extended with link block 15 downward, and the link block 15 can be up and down in sliding slot 7, and link block 15 can be with 11 phase of movable block
It contradicts, drive block 14 drives movable block 11 to move down and movable block 11 can be made to contradict in the bottom surface of ratchet wheel block 6 by link block 15.
The top surface of the movable block 11 of the present embodiment is equipped with inclined first inclined-plane 16, and the bottom surface of the ratchet wheel block 6 is equipped with limit
Position card slot 17, the top surface of the limit card slot 17 are inclined second inclined-plane 18, first inclined-plane 16 and the second inclined-plane 18
Inclined direction is identical, and movable block 11 fits by the first inclined-plane 16 and the second inclined-plane 18 can be fixed on the limiting card of ratchet wheel block 6
In slot 17.Since the top surface of movable block 11 is inclined first inclined-plane 16, when the 15 Compressive activities block 11 of link block of drive block 14
The first inclined-plane 16 when, movable block 11 can be by lateral compression power, and movable block 11 can rotate after slipping sliding slot 7 towards side, movable block
It can be sticked into the limit card slot 17 of 6 bottom of ratchet wheel block after 11 rotations, the syringe needle 10 on detachable needle 8 at this time can be from tail cap 4
It is protruding at syringe needle mouth 5 to carry out extracting medical fluid and liquid medicine injection.The second inclined-plane 18 and movable block of 17 top surface of limit card slot
The inclined direction on the first inclined-plane 16 of 11 top surfaces is identical, and such movable block 11 can be firmly fastened in limit card slot 17.
The bottom surface of the ratchet wheel block 6 of the present embodiment is equipped with third inclined-plane 19, and the third inclined-plane 19 inclines with the first inclined-plane 16
Tilted direction is identical.After syringe use at that time, piston push rod 3 is pressed come when squeezing drive block 14, the connection of 14 bottom of drive block
Block 15 can Compressive activities block 11 again, when movable block 11 is detached from limit card slot 17 and by lateral compression power, the of movable block 11
One inclined-plane 16 can be contradicted with third inclined-plane 19, and movable block 11, which can take advantage of a situation, to be slided into sliding slot 7, to complete the contraction work of syringe needle 10.
The bottom surface of the link block 15 of the present embodiment is equipped with the 4th inclined-plane 20, and the 4th inclined-plane 20 inclines with the first inclined-plane 16
Tilted direction is opposite.Link block 15 is inconsistent by first inclined-plane 16 on the 4th inclined-plane 20 and 11 top surface of movable block of bottom surface, connection
Block 15 and the contact area of movable block 11 are smaller, and link block 15 has bigger lateral compression power to movable block 11, are convenient for movable block
It is rotated after 11 disengaging sliding slots 7.
The inner wall of the needle tubing 1 of the present embodiment has been additionally provided with the fixed drive block 14 of limit in the top of ratchet wheel block 6 and has continued up
Mobile block 21.Block 21, which can block drive block 14, is always positioned at the link block 15 of its bottom in sliding slot 7, pushes away by piston
Drive block 14 can be pushed directly on when bar 2 to move, compact overall structure, operability is stronger.
The detachable needle 8 of the utility model is mounted on the lower section of the ratchet wheel block 6 in needle tubing 1, the movable block on detachable needle
11 can put in the sliding slot 7 between ratchet wheel block 6, be equipped with spring 13 between the syringe needle seat ring 9 and tail cap 4 of detachable needle 8, in this way
Detachable needle 8 is moved upwardly by under the elastic force effect of spring 13 and contradicts in the bottom of ratchet wheel block 6, needle tubing 1 in ratchet wheel block 6
Top is equipped with drive block 14, and the link block 15 on drive block 14 can also put in sliding slot 7 and can be inconsistent with movable block 11, logical
It crosses and presses piston push rod 2 to squeeze drive block 14, drive block 14 is by the 15 Compressive activities block 11 of link block of bottom, in this way activity
The syringe needle seat ring 9 of 11 bottom of block can move down and squeeze the contraction of spring 13, and movable block 11 moves down into the bottom position of ratchet wheel block 6
When rotate a certain angle after can contradict in the bottom of ratchet wheel block 6, at this moment the syringe needle 10 of detachable needle 8 can be from the syringe needle of tail cap 4
It is protruding at mouth 5 to carry out taking out medical fluid and liquid medicine injection, after syringe use, then piston push rod 2 is pressed to squeeze drive block
14 carry out Compressive activities block 11, and movable block 11 and syringe needle seat ring 9 can be rotated further by certain angle, when movable block 11 is in sliding slot 7
The piston push rod 2 pressed is unclamped when setting, spring 13 squeezes needle holder circle 9 and moves up, and movable block 11 is put in again in sliding slot 7,
At this moment syringe needle 10 is collapsible into tail cap 4.The pressing operations of the utility model can be can be completed by one-handed performance, mitigate nurse's
Work load reduces the medical-risk of needlestick injuries.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (5)
1. a kind of puncture-proof syringe, which is characterized in that include needle tubing (1), from needle tubing (1) top opening install piston push rod
(2) and it is mounted on the rubber stopper (3) of piston push rod (2) end, the needle tubing (1) is connected with tail cap (4), the tail at base opening
The bottom of cap (4) is equipped with syringe needle mouth (5)；Multiple ratchet wheel blocks (6) along the circumferential direction are equipped on the inner wall of the needle tubing (1), every two
It is between a ratchet wheel block (6) sliding slot (7)；It is equipped with below ratchet wheel block (6) detachable needle (8) in the needle tubing (1), it is described
Detachable needle (8) include syringe needle seat ring (9), syringe needle seat ring (9) towards tail cap (4) direction be equipped with syringe needle (10) and syringe needle seat ring
(9) multiple movable blocks (11) are equipped with towards needle tubing (1) direction, offer on the syringe needle seat ring (9) and connects with syringe needle (10)
Through-hole (12), syringe needle seat ring (9) outer peripheral surface are fitted closely with needle tubing (1) inner wall, and the syringe needle (10) can be by syringe needle mouth (5)
It is external to stretch to tail cap (4), the movable block (11) can put in sliding slot (7) and can be up and down；In syringe needle in the needle tubing (1)
Spring (13) are equipped between the bottom and tail cap (4) of seat ring (9)；Drive is installed above ratchet wheel block (6) in the needle tubing (1)
Motion block (14) offers the through-hole (12) coaxial with needle tubing (1) on the drive block (14), and the drive block (14) extends downward
Have link block (15), the link block (15) can be up and down in sliding slot (7), and link block (15) can offset with movable block (11)
Touching, drive block (14) move down by link block (15) driving movable block (11) and movable block (11) can be made to contradict in ratchet wheel block (6)
Bottom surface.
2. a kind of puncture-proof syringe according to claim 1, which is characterized in that the top surface of the movable block (11) is equipped with
The bottom surface of inclined first inclined-plane (16), the ratchet wheel block (6) is equipped with limit card slot (17), the top surface of the limit card slot (17)
For inclined second inclined-plane (18), first inclined-plane (16) is identical as the inclined direction of the second inclined-plane (18), movable block (11)
Fitting by the first inclined-plane (16) and the second inclined-plane (18) can be fixed in the limit card slot of ratchet wheel block (6) (17).
3. a kind of puncture-proof syringe according to claim 2, which is characterized in that the bottom surface of the ratchet wheel block (6) is equipped with
Third inclined-plane (19), the third inclined-plane (19) are identical as the inclined direction of the first inclined-plane (16).
4. a kind of puncture-proof syringe according to claim 2, which is characterized in that the bottom surface of the link block (15) is equipped with
4th inclined-plane (20), the 4th inclined-plane (20) are opposite with the inclined direction of the first inclined-plane (16).
5. a kind of puncture-proof syringe according to claim 1, which is characterized in that the inner wall of the needle tubing (1) is in ratchet
It has been additionally provided with above block (6) and has limited the block (21) that fixed drive block (14) continue to move up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820507843.4U CN208877582U (en) | 2018-04-11 | 2018-04-11 | A kind of puncture-proof syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820507843.4U CN208877582U (en) | 2018-04-11 | 2018-04-11 | A kind of puncture-proof syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208877582U true CN208877582U (en) | 2019-05-21 |
Family
ID=66492380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820507843.4U Expired - Fee Related CN208877582U (en) | 2018-04-11 | 2018-04-11 | A kind of puncture-proof syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208877582U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110812618A (en) * | 2019-11-14 | 2020-02-21 | 湛江健力源医疗用品有限公司 | Puncture-proof injection needle with elastic sheath |
| WO2021093709A1 (en) * | 2019-11-14 | 2021-05-20 | 湛江健力源医疗用品有限公司 | Stab-preventing injection needle and stab-preventing injector with elastic protective cap |
-
2018
- 2018-04-11 CN CN201820507843.4U patent/CN208877582U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110812618A (en) * | 2019-11-14 | 2020-02-21 | 湛江健力源医疗用品有限公司 | Puncture-proof injection needle with elastic sheath |
| CN110812618B (en) * | 2019-11-14 | 2020-09-08 | 湛江健力源医疗用品有限公司 | Puncture-proof injection needle with elastic sheath |
| WO2021093709A1 (en) * | 2019-11-14 | 2021-05-20 | 湛江健力源医疗用品有限公司 | Stab-preventing injection needle and stab-preventing injector with elastic protective cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190521 Termination date: 20210411 |