CN110237357A - A kind of anti-stabbed syringe - Google Patents
A kind of anti-stabbed syringe Download PDFInfo
- Publication number
- CN110237357A CN110237357A CN201910493322.7A CN201910493322A CN110237357A CN 110237357 A CN110237357 A CN 110237357A CN 201910493322 A CN201910493322 A CN 201910493322A CN 110237357 A CN110237357 A CN 110237357A
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- China
- Prior art keywords
- needle
- syringe
- bending segment
- stalk
- elastic component
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- 210000002445 nipple Anatomy 0.000 claims abstract description 29
- 238000005452 bending Methods 0.000 claims description 93
- 230000003447 ipsilateral effect Effects 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 10
- 208000012266 Needlestick injury Diseases 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 206010011409 Cross infection Diseases 0.000 description 2
- 206010052428 Wound Diseases 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 208000030507 AIDS Diseases 0.000 description 1
- 208000012260 Accidental injury Diseases 0.000 description 1
- 208000005176 Hepatitis C Diseases 0.000 description 1
- 206010069803 Injury associated with device Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000002672 hepatitis B Diseases 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/3245—Constructional features thereof, e.g. to improve manipulation or functioning
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/3257—Semi-automatic sleeve extension, i.e. in which triggering of the sleeve extension requires a deliberate action by the user, e.g. manual release of spring-biased extension means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Environmental & Geological Engineering (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention belongs to medical instruments fields, disclose a kind of anti-stabbed syringe, including syringe, syringe needle and the piston in syringe, syringe is equipped with nipple, syringe needle includes sequentially connected needle stand, needle stalk and needle point, needle stand is connect with nipple, the syringe further includes covering, covering includes that can be sheathed on the needle cap section that needle stalk is upper and moves axially along needle stalk, cavity is equipped in needle cap section, elastic component is equipped in the cavity, elastic component is sheathed on syringe needle and can close in the reset state to needle point.Anti-stabbed syringe of the invention closes syringe needle by elastic component, the distance between syringe and needle stand are increased by the wedge structure of glissile segment simultaneously, make syringe needle and covering while being detached from syringe, prevent syringe using it is rear, pull out syringe needle when infect due to by needlestick injuries, it avoids syringe needle from being reused, realizes the effect of Anti-stabbing, it is highly-safe, protection effect is good, and it is simple and reasonable, it is easy to operate.
Description
Technical field
The invention belongs to medical instruments fields, are related to a kind of injector assembly, and in particular to a kind of anti-stabbed syringe.
Background technique
Disposable syringe is one of most widely used instrument of current medical institutions, is most commonly seen in nursery work
Medical article.However syringe needle is sharp, nursing staff such as rolls over when in use or when operation in syringe needle of choosing, by syringe needle
It is curved, unmake and often can there is a situation where be wounded by stabbing by the link for picking up syringe investment sharp instrument box.
It is the accident occurred most frequently in clinical position that needle, which is stabbed, and harmfulness is strong, and consequence is serious, will cause a variety of blood
The propagation of source property disease causes very big influence to the body and mind that needle pierces the wounded.For example, accidental needle sticks injury makes medical staff easily
Infect the disease through blood-borne, such as AIDS, hepatitis B, hepatitis C.
Prevention and management that needle is stabbed are still the emphasis of hospital infection management at present.Needle is stabbed may occur at any time, including
Use syringe each stage: before operation, in operation, after operation.Wherein, needle stabs main outbox in injection, after injection
During managing syringe needle, the syringe especially with after, blood or body fluid containing patient in needle cavity, to doctor after accidental injury
Shield personnel have the threat of cross-infection, and therefore, it is necessary to the needle points to the syringe after using to take protection, and remove syringe needle
When avoid by needlestick injuries.
Summary of the invention
In order to overcome the above problem, present inventor has performed sharp studies, design a kind of anti-stabbed syringe, including needle
Cylinder, syringe needle and the piston in syringe, syringe are equipped with nipple, and syringe needle includes sequentially connected needle stand, needle stalk and needle point, needle
Seat is connect with nipple, which further includes covering, and covering includes that can be sheathed on needle stalk above and obstruct axial move along needle
Dynamic needle cap section, needle cap section is interior to be equipped with cavity, elastic component is equipped in the cavity, elastic component is sheathed on syringe needle and multiple
Needle point can be closed under the state of position.Anti-stabbed syringe of the invention closes syringe needle by elastic component, simultaneously
Increase the distance between syringe and needle stand by the wedge structure of glissile segment, syringe needle and covering made to combine while be detached from syringe,
Prevent syringe using it is rear, pull out syringe needle when by needlestick injuries, realize the effect of Anti-stabbing, it is highly-safe, protection effect is good, and tie
Structure advantages of simple, it is easy to operate, thereby completing the present invention.
The purpose of the present invention is to provide a kind of anti-stabbed syringe, including syringe, syringe needle and the piston in syringe,
Syringe is equipped with nipple, and syringe needle includes that sequentially connected needle stand, needle stalk and needle point, needle stand are connect with nipple, and the syringe is also
Including covering, the covering includes that can be sheathed on that needle stalk is upper and needle cap section along needle stalk axial movement, the needle
It is equipped with cavity in cap section, is equipped with elastic component in the cavity, the elastic component is sheathed on syringe needle and in the reset state can
Needle point is closed.
Wherein, the sliding slot axially extending along syringe is equipped on syringe outer wall, one end of the sliding slot is open end, described
The other end of sliding slot is closed end, wherein the closed end of sliding slot is one end far from nipple, is equipped with and sliding slot in the sliding slot
The sliding block matched and can slided in sliding slot.
The covering further includes glissile segment and interlude, and the interlude is described between glissile segment and needle cap section
Glissile segment is equipped with can be in the warp architecture between the wedge structure and wedge structure and interlude slided in sliding slot, the wedge
Shape structure is equipped with v-shaped opening, and the wedge structure is bottom end close to one end of warp architecture, and one end far from warp architecture is
Top, the top of the wedge structure are contacted with the bottom end of sliding slot.
The elastic component is the elastic sheet metal of bending, and the elastic component includes that flat segments, the first bending segment and second are curved
Trisection, first bending segment and the second bending segment all have fixing end and free end, the fixing end of first bending segment and
The fixing end of second bending segment is located at the both ends of flat segments, when the elastic component be reset state when, first bending segment and
The free end contact closure of second bending segment forms closed frame-type structure.
Plane where the flat segments is vertical with the axis where needle stalk, and the central location of the flat segments is equipped with hole
II, the needle stalk through hole II pass through flat segments.
When elastic component is sheathed on needle stalk, the fixing end of first bending segment and free end are located at the ipsilateral of needle stalk,
The fixing end of second bending segment and free end are located at the ipsilateral of needle stalk, and the needle stalk and the part between fixing end and free end are not
Contact.
When elastic component is sheathed on needle stalk, the fixing end of first bending segment and free end are located at the two sides that needle obstructs,
The fixing end of second bending segment and free end are located at the two sides of needle stalk, and first bending segment and the second bending segment intersect,
Cross section of the needle stalk across the first bending segment and the second bending segment.
Block, the profile of the block are equipped on the lower end surface of the free end of the first bending segment and/or the second bending segment
For arc-shaped, the preferably described block be it is cylindric, columned axis is vertical with the axis that needle obstructs.
Pushing block is equipped between the wedge structure and sliding block, the pushing block is contacted with glissile segment, hidden when to needle point
When covering, the pushing block pushes wedge structure to slide in sliding slot to needle point direction, and after wedge structure is detached from sliding slot, pushing block is pushed
Warp architecture is slided to needle point direction.
Locating part is equipped on needle stalk, the locating part is protrusion, preferably arc-shaped protrusion, the elastic component
The hole II of flat segments cannot can pass through locating part by locating part, first bending segment and the second bending segment.
The advantageous effect of present invention is that:
(1) present invention is sheathed on needle stalk by the way that elastic component, elastic component are arranged in needle cap section, when elastic component loses needle stalk
When to its active force, automatically resets, needle point is closed, and elastic component is located in the cavity of needle cap section, it can comprehensive envelope
Needle point is closed, so that human body can not touch needle point, to prevent human body by needle pricks；
(2) syringe provided by the invention after closing needle point, is capable of increasing syringe and needle by pressing down on wedge structure
The distance between seat, the effect for reducing nipple and needle stand is big, pushes covering that covering and syringe needle and syringe are detached from, behaviour
Make it is simple and efficient, can be operated with one hand complete needle point closing and be detached from, avoid by the danger of needle pricks；
(3) syringe provided by the invention limits covering by the way that locating part is arranged, and prevents from continuing to push forward
Cause needle cap section and syringe needle to be detached from, pushing block is equipped between glissile segment and sliding block, by before closing needle point and after closing needle point
Glissile segment is pushed, so that glissile segment slides on needle stalk, realizes the closing of needle point, and syringe needle and syringe are detached from；
(4) syringe safe provided by the invention is good, at low cost, protection effect is good, after using syringe, pulls out syringe needle
Shi Youxiao avoids being needled wound.
Detailed description of the invention
Fig. 1 shows a kind of anti-stabbed syringe structural schematic diagram of preferred embodiment of the present invention；
Fig. 2 shows the structural schematic diagrams that a kind of glissile segment of preferred embodiment of the present invention slides onto sliding slot open end；
Fig. 3 shows a kind of glissile segment of preferred embodiment of the present invention and slides onto structural representation between syringe and needle stand gap
Figure；
Fig. 4 shows a kind of covering of preferred embodiment of the present invention and the structural schematic diagram of syringe needle disengaging nipple；
Fig. 5 shows a kind of schematic side view of the wedge structure of preferred embodiment of the present invention；
Fig. 6 shows a kind of structural schematic diagram of the elastic component closing needle point of preferred embodiment of the present invention；
Fig. 7 shows a kind of structural schematic diagram of the elastic component of preferred embodiment of the present invention；
Fig. 8 shows the structural schematic diagram of the elastic component of another preferred embodiment of the invention.
Drawing reference numeral explanation:
1- syringe；
11- nipple；
2- syringe needle；
21- needle stand；
22- needle stalk；
221- locating part；
23- needle point；
3- piston rod；
4- sliding slot；
41- sliding block；
42- pushing block；
5- covering；
51- glissile segment；
511- warp architecture；
512- wedge structure；
513-V shape opening；
514- briquetting；
52- interlude；
53- needle cap section；
531- shell；
The hole 532- I；
54- elastic component；
The first bending segment of 541-；
542- flat segments；
The second bending segment of 543-；
The hole 544- II；
545- block.
Specific embodiment
Below by attached drawing and preferred embodiment, the present invention is described in more detail.Illustrated by these, the present invention
The characteristics of and advantage will become more apparent from it is clear.
According to the present invention, as shown in figures 1-8, the present invention provides a kind of anti-stabbed syringe, which includes 1 He of syringe
Syringe needle 2, syringe 1 is interior equipped with piston and the piston rod 3 being connected on piston, and syringe needle 2 includes sequentially connected needle stand 21, needle stalk 22
With needle point 23, syringe 1 is equipped with nipple 11, and nipple 11 is located at the end of syringe 1, and needle stand 21 connect with nipple 11, preferably may be used
Dismantling connection.
According to the present invention, on the lateral wall of syringe 1 along the axially extending direction of syringe 1 be equipped with sliding slot 4, the one of sliding slot 4
End is open end, and the open end of sliding slot 4 is aligned with one end of 1 connecting needle of syringe, and the other end of sliding slot 4 is closed end, silent
End is one end far from nipple 11.
According to the present invention, being equipped in sliding slot 4 can slide with the matched sliding block 41 of sliding slot 4, sliding block 41 in sliding slot 4,
When closing to needle point 23, under finger effect, sliding block 41 is slided from the closed end of sliding slot 4 to open end.
According to the present invention, the upper surface of sliding block 41 is equipped with anti-slip part, and anti-slip part is made of resilient rubbber cushion, it is preferable that bullet
Property rubber pad be equipped with anti-skid bulge, for increasing the frictional force between sliding block 41 and hand, consequently facilitating with finger movable slider.
According to the present invention, which further includes covering 5, and covering 5 includes 51 sections of sliding, interlude 52 and needle cap
Section 53.Glissile segment 51 and needle cap section 53 are located at the both ends of interlude.
According to the present invention, glissile segment 51 can slide in sliding slot 4, and glissile segment 51 includes warp architecture 511 and wedge shape knot
Structure 512, glissile segment 51 are contacted in sliding slot 4 by the bottom end of wedge structure 512 and sliding slot 4 and are slided, and the width of glissile segment 51 is small
In the width of sliding slot 4, warp architecture 511 is between wedge structure 512 and interlude 52.
Preferred embodiment according to the present invention, interlude 52 are rectangular parallelepiped structure, and the bending angle of warp architecture 511 is
Right angle.
It according to the present invention, is bottom end close to one end of warp architecture 511, far from warp architecture 511 in wedge structure 512
One end be top, the top of wedge structure 512 is contacted with the bottom end of sliding slot 4.
According to the present invention, side of the wedge structure 512 on sliding block 41 along the chute 4 glide direction is wedge shape, picture 1-4
It is shown.
According to the present invention, wedge structure 512 is equipped with v-shaped opening 513, it is preferable that by the top bottom of to of wedge structure 512
The v-shaped opening 513 at end is in " inverted v-shaped ".
According to the present invention, nipple 11 can be located in the v-shaped opening of wedge structure 512, it is preferable that wedge structure 512
Top v-shaped opening opening width be greater than nipple 11 diameter.
Preferred embodiment according to the present invention, after wedge structure 512 is inserted into the gap between needle stand 21 and syringe 1,
One side of wedge structure 512 is contacted with the end face of syringe 1, preferably face contact, another side of wedge structure 512 with
Needle stand 21 contacts.
According to the present invention, wedge structure 512 is divided to for the identical cone structure of two structures by v-shaped opening 513, and preferably two
The tip of a triangular pyramid, two trigone wimble structures is contacted with sliding slot, and the bottom surface of triangular pyramid and the lower surface of warp architecture 511 connect
It connects, the other end of warp architecture 511 is connect with interlude 52.
According to the present invention, wedge structure 512 is inserted into the hole between needle stand 21 and syringe 1, works as wedge structure
After 512 are inserted into the hole between needle stand 21 and syringe 1, plane and needle where a side of wedge structure 512 obstruct 22
Axis is vertical, nipple 11 is located in v-shaped opening 513, wedge structure 512 by top to bottom end the section for being parallel to bottom end
Area is gradually increased, i.e., after wedge structure 512 is inserted into the gap between needle stand 21 and syringe 1, by pressing down on wedge
Shape structure 512 enables to the distance between needle stand 21 and 1 end face of syringe to increase, so that needle stand 21 is easier to be detached from syringe
1。
According to the present invention, needle cap section 53 can be arranged on needle stalk 22, and needle cap section 53 includes shell 531, and shell 531 is equipped with
Hole I532, needle stalk 22 can pass through hole I532, so that needle cap section 53 can be set on needle stalk 22, enable needle cap section 53
Enough to slide along needle stalk 33 to 23 direction of needle point, the glissile segment 51 of covering 5 slides in sliding slot 4.
According to the present invention, needle cap section 53, interlude 52 and glissile segment 51 are integrally formed.
According to the present invention, it is equipped with cavity in needle cap section 53, elastic component 54 is equipped in cavity, elastic component 54 is sheathed on needle stalk 22
Needle point 23 can above and in the reset state be closed.
According to the present invention, elastic component 54 is equipped with through-hole, and needle stalk 22 can pass through through-hole, so that elastic component 54 is arranged
On needle stalk 22.
According to the present invention, elastic component 54 is elastic sheet metal, the elastic sheet metal being preferably deformed by bent, bullet
Property part 54 have symmetrical structure, elastic component 54 include the first bending segment 541, flat segments 542 and the second bending segment 543, first is curved
Trisection 541 and the second bending segment 543 include fixing end and free end, and the first bending segment 541 and the second bending segment 543 are consolidated
Fixed end is respectively arranged on the both ends of flat segments 542, and the free end of the first bending segment 541 and the second bending segment 543 is far from flat segments
542, when elastic component 54 is in reset state, the free end contact closure of the first bending segment 541 and the second bending segment 543, from
And the first bending segment 541, the second bending segment 543 and flat segments 542 is made to form closed frame-type structure.
According to the present invention, the plane where flat segments 542 is vertical with the axis where needle stalk 22, and flat segments 542 are equipped with
Hole II544, preferably hole II544 are located at the center of flat segments 542, and the diameter of hole II544 is greater than the diameter of needle stalk 22, so that needle obstructs
22 through hole II544 pass through flat segments 542, and after elastic component 54 is sheathed on needle stalk 22, the first bending segment 541 and second is curved
The fixing end of trisection 543 is located at the two sides of needle stalk 22 and, first bending segment 541 and second bending symmetrical about needle stalk 22
The free end of section 543 is located at the two sides of needle stalk 22 and obstructs 22 symmetrically relative to needle.
A kind of preferred embodiment according to the present invention, when elastic component 54 is sheathed on needle stalk 22 and can obstruct on 22 in needle
When sliding, the fixing end of the first bending segment 541 and free end are located at the ipsilateral of needle stalk 11, the fixing end of the second bending segment 543 and
Free end is located at the ipsilateral of needle stalk 22, and the first bending segment 541 and the second bending segment 543 are symmetrical relative to needle stalk 22, needle stalk 22 with
Part between fixing end and free end does not contact, the free end of the free end of the first bending segment 541 and the second bending segment 543
It is contradicted with needle stalk 22, when reaching at needle point 23, the free end of the first bending segment 541 is freely terminated with the second bending segment 543
Touching closure, covers needle point 23, prevents from stabbing.
A kind of preferred embodiment according to the present invention, when elastic component 54 is sheathed on needle stalk 22 and can obstruct on 22 in needle
When sliding, the fixing end of the first bending segment 541 and free end are located at the ipsilateral of needle stalk 22, the fixing end of the second bending segment 543 and
Free end is located at the ipsilateral of needle stalk 22, and the first bending segment 541 and the second bending segment 543 are symmetrical relative to needle stalk 22, needle stalk 22 with
Part between fixing end and free end does not contact, the free end of the free end of the first bending segment 541 and the second bending segment 543
It is contradicted with needle stalk 22, when reaching at needle point 23, the free end of the first bending segment 541 is freely terminated with the second bending segment 543
Touching closure, covers needle point 23, prevents from stabbing.
Another preferred embodiment according to the present invention, when elastic component 54 is sheathed on needle stalk, the first bending segment 541
Fixing end and free end be located at the two sides of needle stalk 22, the fixing end of the second bending segment 543 and free end are located at two that needle obstructs 22
Side, the first bending segment 541 and the second bending segment 543 are symmetrical relative to needle stalk 22, the first bending segment 541 and the second bending segment 543
Intersect, then needle stalk 22 passes through the cross section of the first bending segment 541 and the second bending segment 543, and the first bending segment 541 and second is curved
The through-hole for enabling the stalk of the needle with finite place piece 221 11 to pass through is equipped in trisection 543.
According to the present invention, the end face of the close needle stalk 22 of the free end of the first bending segment 541 and/or the second bending segment 543
Inside is equipped with block 545, and when elastic component 54 is sheathed on needle stalk 22, block 545 is contacted with needle stalk 22, the profile of block 545
For arc-shaped, preferably block 545 is cylindrical-shaped structure, and the axis of cylindrical-shaped structure is vertical with the axis of needle stalk 22.
According to the present invention, elastic component 54 slides on needle stalk 22, and when sliding at needle point 23, block 545 passes through needle point
After 23, since the elastic reset of elastic component 54 acts on, the free end of the first bending segment 541 and the second bending segment 543 is closed, block
545 with another free end contact closure, form a closing frame, thus by needle point 23 cover in the cavity of needle cap section 53,
When human body touches needle point 23, can be stopped by the covering 5, thus the generation for avoiding needle point 23 from stabbing.
According to the present invention, locating part 221 is equipped on needle stalk 22, locating part 221 is preferably protrusion, the first bending segment 541
It can not pass through locating part 221 by locating part 221, the flat segments 542 of elastic component 54 with the second bending segment 543.Protrusion
Preferably arc-shaped protrusion, arc-shaped protrusion form the low protrusion in intermediate high two sides (such as ellipse in the specific position of needle stalk 22
Or the protrusion of semi-elliptical profile), consequently facilitating elastic component 54 on needle stalk 22 when sliding, the first bending segment 541 and second is curved
Trisection 543 can be smoothly without hindrance by locating part 221, stops sliding when reaching flat segments 542.
According to the present invention, obstruct in 22 axial planes by 221 highest point of locating part and perpendicular to needle, hole I532 and hole
II544 is preferably circular hole, and the highest point of locating part 221 is greater than the flat segments 542 of elastic component 54 at a distance from the bottom end of needle stalk 22
The diameter of upper hole II544, and the diameter of hole I532 is greater than the top of locating part 221 on 53 shell 531 of needle cap section and needle obstructs 22
The distance of bottom end, so that when elastic component 54 slides on needle stalk, due to the position-limiting action of locating part 221, so that elastic
Part 54 cannot continue to slide, to prevent needle cap section 53 from sliding from needle stalk.
According to the present invention, the one end of locating part 221 far from needle point 23 is not more than flat segments at a distance from the tip of needle point 23
The distance between 542 and block 545, if one end of distance of the locating part 221 far from needle point 23 is big at a distance from 23 tip of needle point
In the distance between flat segments 542 and block 545, then when elastic component 54 slides onto locating part 221, due to locating part 221
Position-limiting action causes elastic component 54 that can not continue to obstruct along needle 22 to the sliding of 23 direction of needle point, and block 545 does not reach needle point at this time
23 parts, cause the first bending segment 541 and the second bending segment 543 can not contact closure, to cannot achieve the screening to needle point 23
It covers.
According to the present invention, pushing block 42, the glissile segment of pushing block 42 and covering 5 are additionally provided between sliding block 41 and covering 5
51 is inconsistent, specifically, when covering 5 is slided on needle stalk 22, the side of the wedge structure 512 of pushing block 42 and glissile segment 51
Face is in contact.I.e. when covering 5 slides from needle stand 21 to 23 direction of needle point and covers to needle point 23, pushing block 41 pushes wedge
Shape structure 512 slides in sliding slot 4 to 23 direction of needle point, and after wedge structure 512 is detached from sliding slot 4, pushing block 42 pushes bending knot
Structure 511 is slided to needle point direction, so that syringe needle is smoothly detached from from syringe.
In the present invention, when syringe is in unused state, needle cap section be located remotely from needle point needle stalk one end, and with
Needle stand is inconsistent, and glissile segment is in sliding slot, and one end of sliding block is contacted with the end face of sliding slot closed end, the other end of sliding block with push away
Block connection, pushing block are contacted with covering.
A kind of preferred embodiment according to the present invention is equipped with briquetting 514 in the top of warp architecture 511, preferably exists
Briquetting 514 is equipped with anti-skid bulge, convenient for applying downward power to glissile segment 51 by briquetting, so that wedge structure
512 are inserted into the gap between syringe 1 and needle stand 21, and further, nipple 11 is located in the v-shaped opening of wedge structure 512
In, continue to press down on wedge structure 512, since wedge structure 512 is parallel to the area in the section of bottom end by top to bottom end
It is gradually increased, to increase the distance between needle stand 21 and syringe 1, reduces the active force between needle stand 21 and nipple 11,
It exerts a force to sliding block 41, pushing block 42 pushes warp architecture 511, so that syringe needle 22 can be smoothly detached from from nipple 11.
According to the present invention, when the flat segments 542 of elastic component 54 are in contact with locating part 221, covering 5 is in pushing block 42
Between locating part 221, pushing block 42 pushes covering 5 to 22 direction of needle point or is applied downwards by briquetting 514 to covering 5
Power may make wedge structure 512 to be inserted into the gap between syringe 1 and needle stand 21, simultaneously because the intervention of wedge structure 512,
Distance increases between syringe 1 and needle stand 21, thus reduces the coordinate force of nipple 11 Yu needle stand 21, slipper push pushing block, pushing block
It exerts a force to covering, so that covering drives syringe needle to fall off from nipple.
In the present invention, after pushing or pressing covering 5, the height of covering 5 declines, and wedge structure 512 is inserted into
The contact position of the two sides of nipple 11, pushing block 42 and covering 5 becomes 511 part of warp architecture of glissile segment 51, preferably pushing block
42 match with the shape of 511 part of warp architecture, consequently facilitating pushing covering 5 mobile to 23 direction of needle point.
In the present invention, after syringe use, sliding block 41, promotion of the covering 5 by pushing block 42, sliding are pushed
Section 51 is slided in sliding slot 4, while needle cap section 53 slides along needle stalk 22 is axial to 23 direction of needle point, when needle cap section 53 is slided
To needle point 23, when block 545 slips over needle point, the free end of 54 first bending segment 541 of elastic component and the second bending segment 543 is in bullet
Under character state, contact closure forms closing frame, while locating part 221 stops elastic component 54 to continue to prevent to the movement of needle point direction
Only needle cap section 53 slides from needle point.
At the same time, the glissile segment 51 of covering 5 slides to the end face of syringe 1 Yu 11 junction of nipple, presses down on masking
One end of the glissile segment 51 of part 5, the wedge structure 512 of glissile segment 51 are inserted into the gap between needle stand 21 and syringe 1, and by
In the intervention of wedge structure 512 so that the distance between needle stand 21 and syringe 1 increase so that needle stand 21 and nipple 11 it
Between active force reduce, continue to press on sliding block 41, pushing block 42 pushes covering 5, then covering 5 is detached from cream together with syringe needle 2
First 11, it falls into sharp instrument box from syringe 1, to avoid by needle pricks, and can be pulled out in the case where not contacting syringe needle
Syringe needle eliminates the hidden danger being wounded by stabbing when choosing syringe needle, and syringe needle removal is convenient, to make the self-destruction and one of syringe needle realization syringe
Secondary property uses.
The present invention is sheathed on needle stalk by the way that elastic component, elastic component are arranged in needle cap section, when elastic component loses needle stalk pair
It when its active force, automatically resets, needle point is closed, and elastic component is located in the cavity of needle cap section, it can Omnidirectional enclosed
Needle point, so that human body can not touch needle point, to prevent human body by needle pricks；It, can by wedge structure after closing needle point
Increase the distance between syringe and needle stand, reduce the effect of nipple and needle stand, push covering make covering and syringe needle and
Syringe is detached from, simple and efficient to handle, be can be operated with one hand and is completed needle point closing and be detached from, avoids by the danger of needle pricks；
Covering is limited by the way that locating part is arranged, preventing from continuing to press on causes needle cap section and syringe needle to be detached from, in glissile segment and cunning
Pushing block is equipped between block, by being pushed before closing needle point and after closing needle point to glissile segment, so that glissile segment slides, it is real
The closing of existing needle point, and make syringe needle be detached from syringe under impetus；Anti-stabbed syringe safety of the invention is good, cost
It is low, protection effect is good, after using syringe, effectively avoid being needled wound when pulling out syringe needle.
Preferred embodiment and exemplary example is combined to describe the invention in detail above.But need to state
It is that these specific embodiments are only not constitute any limit to protection scope of the present invention to illustrative explanations of the invention
System.Without departing from spirit of that invention and protection scope, the technology of the present invention content and embodiments thereof can be carried out
Various improvement, equivalencing or modification, these fall within the protection scope of the present invention.Protection scope of the present invention is with appended power
Subject to benefit requires.
Claims (10)
1. a kind of anti-stabbed syringe, including syringe and syringe needle, syringe is equipped with nipple, syringe needle include sequentially connected needle stand,
Needle stalk and needle point, needle stand are connect with nipple, which is characterized in that the syringe further includes covering, and the covering includes energy
Needle stalk is enough sheathed on above and along the needle cap section of needle stalk axial movement, needle cap section is interior to be equipped with cavity, is equipped in the cavity
Elastic component, the elastic component are sheathed on needle stalk and can above and in the reset state close to needle point.
2. anti-stabbed syringe according to claim 1, which is characterized in that be equipped on the syringe outer wall along syringe axis
To the sliding slot of extension, one end of the sliding slot is open end, and the other end of the sliding slot is closed end, wherein sliding slot it is silent
End is one end far from nipple, is equipped with the sliding block for matching and capable of being slided in sliding slot with sliding slot in the sliding slot.
3. anti-stabbed syringe according to claim 1 or 2, which is characterized in that the covering further include glissile segment and
Interlude, for the interlude between glissile segment and needle cap section, the glissile segment is equipped with the wedge shape that can be slided in sliding slot
Warp architecture between structure and wedge structure and interlude, the wedge structure are equipped with v-shaped opening, the wedge structure
Top contacted with the bottom end of sliding slot,
The wedge structure is bottom end close to one end of warp architecture, and one end far from warp architecture is top, the wedge shape knot
The top of structure is contacted with the bottom end of sliding slot.
4. anti-stabbed syringe according to claim 1, which is characterized in that the elastic component is elastic sheet metal, described
Elastic component includes flat segments, the first bending segment and the second bending segment, and first bending segment and the second bending segment all have fixation
End and free end, the fixing end of first bending segment and the fixing end of the second bending segment are located at the both ends of flat segments, when
When the elastic component is reset state, the free end contact closure of first bending segment and the second bending segment is formed closed
Frame-type structure.
5. anti-stabbed syringe according to claim 4, which is characterized in that plane and needle where the flat segments obstruct institute
Axis it is vertical, the central locations of the flat segments is equipped with hole II, and the needle stalk through hole II passes through flat segments.
6. anti-stabbed syringe according to claim 4 or 5, which is characterized in that when elastic component is sheathed on needle stalk, institute
The fixing end and free end for stating the first bending segment are located at the ipsilateral of needle stalk, and the fixing end of the second bending segment and free end are located at needle stalk
It is ipsilateral, needle stalk is not contacted with the part between fixing end and free end.
7. anti-stabbed syringe according to claim 4 or 5, which is characterized in that when elastic component is sheathed on needle stalk, institute
The fixing end and free end for stating the first bending segment are located at the two sides of needle stalk, and the fixing end of second bending segment and free end are located at
The two sides of needle stalk, first bending segment and the second bending segment intersect, and the needle stalk is across the first bending segment and the second bending segment
Cross section.
8. anti-stabbed syringe according to claim 4 or 5, which is characterized in that bent in the first bending segment and/or second
The end face of the close needle stalk of the free end of section is equipped with block, and the profile of the block is arc-shaped, and the preferably described block is circle
Column, columned axis are vertical with the axis that needle obstructs.
9. anti-stabbed syringe according to claim 3, which is characterized in that be equipped between the wedge structure and sliding block
Pushing block, the pushing block is contacted with glissile segment, and when covering to needle point, the pushing block pushes wedge structure in sliding slot to needle
Sharp direction sliding, after wedge structure is detached from sliding slot, pushing block pushes warp architecture to slide to needle point direction.
10. anti-stabbed syringe according to claim 5, which is characterized in that locating part is equipped on needle stalk, it is described
Locating part is protrusion, preferably arc-shaped protrusion, the hole II of the flat segments of the elastic component cannot by locating part, described first
Bending segment and the second bending segment can pass through locating part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910493322.7A CN110237357B (en) | 2019-06-06 | 2019-06-06 | Prevent stabbing syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910493322.7A CN110237357B (en) | 2019-06-06 | 2019-06-06 | Prevent stabbing syringe |
Publications (2)
| Publication Number | Publication Date |
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| CN110237357A true CN110237357A (en) | 2019-09-17 |
| CN110237357B CN110237357B (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910493322.7A Expired - Fee Related CN110237357B (en) | 2019-06-06 | 2019-06-06 | Prevent stabbing syringe |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112220991A (en) * | 2020-10-16 | 2021-01-15 | 临沂市中心医院(临沂市沂水中心医院) | Medical needle head with puncture-proof structure |
| CN117442814A (en) * | 2023-07-19 | 2024-01-26 | 艾可泰科生物科技(浙江)有限公司 | Stem cell local injection device for promoting healing of diabetic ulcer wound surface |
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| CN117442814A (en) * | 2023-07-19 | 2024-01-26 | 艾可泰科生物科技(浙江)有限公司 | Stem cell local injection device for promoting healing of diabetic ulcer wound surface |
| CN117442814B (en) * | 2023-07-19 | 2024-05-31 | 艾可泰科生物科技(浙江)有限公司 | Stem cell local injection device for promoting healing of diabetic ulcer wound surface |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110237357B (en) | 2021-07-16 |
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