CN207370946U - Segmented safety self-destroyed syringe - Google Patents
Segmented safety self-destroyed syringe Download PDFInfo
- Publication number
- CN207370946U CN207370946U CN201720398435.5U CN201720398435U CN207370946U CN 207370946 U CN207370946 U CN 207370946U CN 201720398435 U CN201720398435 U CN 201720398435U CN 207370946 U CN207370946 U CN 207370946U
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- China
- Prior art keywords
- injection
- syringe
- wall
- snap ring
- injection tube
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- Expired - Fee Related
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- 238000002347 injection Methods 0.000 claims abstract description 111
- 239000007924 injection Substances 0.000 claims abstract description 111
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 9
- 239000003814 drug Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Segmented safety self-destroyed syringe, including, injection tube, injection rod, being equipped with below injection rod cavity can the spring pocket that moves upwards of relative injection bar, abutting portion is equipped with below the inner wall of injection rod, compression spring is equipped between the top and abutting portion of spring pocket, the lower end of spring pocket is fixed with clamp, lock snap ring, the bottom wall of locking snap ring and injection tube has cooperatively formed avoidance cavity, and first through hole is equipped in the middle part of locking snap ring, and the inner edge of locking snap ring lower end is equipped with the first inclined surface；Needle stand, needle stand upper end are placed in socket part and coordinate with the inner thread of socket part, needle guard part, and syringe needle is fixed in the cavity of needle guard part lower end.The utility model ensures the security of syringe when in use, medical staff's operating syringe has clearly operational feedback, clearly distinguished function of injection and self-destroying function, and avoiding the occurrence of faulty operation causes malpractice by improving the package assembly of syringe.
Description
Technical field
The utility model is related to syringes, and in particular to safe self-breaking syringe.
Background technology
With the extensive use of syringe, to avoid the occurrence of the cross-infection of medical sufferer, more and more type self-destroyed notes
Emitter appears on the market, and self-destruction syringe is that the disposable syringe product reused can be prevented after use, and species is more
Sample after injection, relies on either manually or mechanically strength, prevents push rod from being extracted out out of syringe, reaches self-locking or piston
Sealing performance is destroyed or the push rod of syringe can be pushed off, and is finally reached the purpose for preventing recycling.
At present on the market there is also a variety of retraction self-destroyed syringes, this syringe by setting specific package assembly,
Needle tubing is made to complete to retract in syringe in injection, realizes self-destroying function, but the knot of this type retraction self-destroyed syringe
Structure is complicated, and assembly precision requirement is high, causes manufacture cost excessively high, meanwhile, the security performance of this type is unstable, many originals
Because restrict being widely popularized for this product, usually require repeatedly to extract liquid medicine when medical staff is using syringe and make up a prescription,
It needs to ensure that the air in syringe is completely exhausted out, so injection rod must be shifted onto the zero-bit of syringe, and this operation is held
Easily there is safety problem, injection rod triggers the self-destroying function of syringe when shifting zero-bit onto, cause syringe that can not use, and another
On the one hand, when user uses this type of syringe to patient injection medicament, also error easy to operate, during injection
The self-destroying function of syringe is triggered, needle tubing is caused directly to be extracted unexpected in patient body, it is possible to cause malpractice.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of Segmented safety self-destruction injections
Device can realize the safe self-destruction of syringe.
To solve the above problems, technical solution is as follows used by the utility model：
Segmented safety self-destroyed syringe, including,
Injection tube, the bottom wall of injection tube radially inside contract to form the first bayonet, and socket part is provided with outside injection tube lower end, is covered
The inner wall of socket part is equipped with screw thread；
Injection rod, wearing for injection rod activity are connected in injection tube, and injection rod lower end and injection tube inner wall close fit,
It is cavity in injection rod, the bottom wall of injection rod radially inside contracts to form the second bayonet, and being equipped with below injection rod cavity can opposite note
The spring pocket that bar moves upwards is penetrated, the outer wall of spring pocket is equipped with the first stop salient point, and the inner wall of the second bayonet is equipped with and first
First groove of stop salient point clamping, the inner wall lower section of injection rod are equipped with abutting portion, are set between the top and abutting portion of spring pocket
There is compression spring, compression spring covers the elastic stress away from abutting portion, the lower end of spring pocket for providing a push the spring
It is fixed with clamp；
Lock snap ring, locking snap ring be placed in injection tube bottom and with injection tube inner wall close fit, locking snap ring with injection
The bottom wall of cylinder has cooperatively formed avoidance cavity, locks to wear outside the lower end of snap ring and is connected on the first bayonet, is set in the middle part of locking snap ring
There is first through hole, the inner edge of locking snap ring lower end is equipped with the first inclined surface；
Needle stand, needle stand upper end are placed in socket part and coordinate with the inner thread of socket part, and it is logical that second is equipped in the middle part of needle stand
Hole；
Needle guard part, needle guard part intert in the second through hole of needle stand, are fixed with what is be oppositely arranged above needle guard part
Clamping portion, the upper end outer of clamping portion are equipped with the second inclined surface that connection is contradicted with the first inclined surface, two clampings being oppositely arranged
Along the card slot to match with clamp is convexed to form in the upper end in portion, syringe needle is fixed in the cavity of needle guard part lower end, syringe needle is by pin
The second through hole that external member passes downwardly through needle stand extends to the outside of injection tube.
Preferably, be additionally provided with First terrace in the second through hole, the outer wall of the needle guard part be equipped with second step face and with
First terrace coordinates to form the position limiting structure for preventing that needle guard part from moving down.
Preferably, injection rod bottom is provided with to squeeze the rubber seal plug of locking snap ring, the rubber seal plug and note
Shooting cylinder inner wall close fit.
Preferably, injection rod upper end is equipped with rear cover, and rear cover is clamped with injection rod.
Preferably, the second stop salient point that the upper end outer wall of injection rod is equipped with, injection tube inner wall upper end is equipped with stops with second
The second groove that dynamic salient point matches.
Preferably, injection tube lower end is also arranged with sheath, and sheath is removably set on the outer wall of needle stand lower end.
Compared with prior art, the beneficial effects of the utility model are：
By improving the package assembly of syringe, the manufacture cost for reducing syringe while, ensures the utility model
The security of syringe when in use sets locking snap ring in the injection tube of syringe, locks the bottom wall of snap ring and injection tube
Avoidance cavity has been cooperatively formed, when needing to be made up a prescription using syringe, self-destruction will not be triggered when injection rod pushes to zero-bit
Function enables injection rod to push to zero-bit repeatedly so as to safely make up a prescription, and after the completion of syringe is used to inject, continues
Injection rod is promoted so as to which the bottom wall that locking snap ring is driven to be moved to injection tube realizes self-destroying function, medical staff's operating syringe energy
There is clearly operational feedback, clearly distinguished function of injection and self-destroying function, avoid and faulty operation occur and cause malpractice.
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is one of use state diagram of the utility model；
Fig. 3 is the two of the use state diagram of the utility model；
Fig. 4 is the structure diagram after the utility model self-destruction；
Fig. 5 is the structure diagram of the utility model injection tube；
Fig. 6 is the structure diagram of the utility model injection rod；
Fig. 7 is the structure diagram that the utility model locks snap ring；
Fig. 8 is the structure diagram of the utility model needle stand；
Fig. 9 is the structure diagram of the utility model needle guard part；
Reference numeral：1st, injection tube；11st, the first bayonet；12nd, socket part；13rd, the second groove；2nd, injection rod；21st, second
Bayonet；211st, the first groove；22nd, abutting portion；23rd, rubber seal plug；24th, the second stop salient point；25th, rear cover；3rd, spring pocket；
31st, the first stop salient point；32nd, spring is compressed；33rd, clamp；4th, snap ring is locked；41st, cavity is avoided；42nd, first through hole；43rd,
One inclined surface；5th, needle stand；51st, the second through hole；511st, First terrace；6th, needle guard part；61st, clamping portion；611st, the second inclined surface；
612nd, card slot；62nd, syringe needle；63rd, second step face；7th, sheath.
Specific embodiment
As shown in figs 1-9, the present embodiment provides a kind of Segmented safety self-destroyed syringe, including,
Injection tube 1, the bottom wall of injection tube 1 radially inside contract to form the first bayonet 11, and injection tube is provided with socket outside 1 lower end
Portion 12, the inner wall of socket part 12 are equipped with screw thread；
Injection rod 2,2 wearing for activity of injection rod is connected in injection tube 1, and 2 lower end of injection rod and 1 inner wall of injection tube are closed
Cooperation, interior injection rod 2 is cavity, and the bottom wall of injection rod 2 radially inside contracts to form the second bayonet 21, installation below 2 cavity of injection rod
Have can the spring pocket 3 that moves upwards of relative injection bar 2, the outer wall of spring pocket 3 is equipped with the first stop salient point 31, the second bayonet 21
Inner wall is equipped with the first groove 211 with the clamping of the first stop salient point 31, and abutting portion 22, spring are equipped with below the inner wall of injection rod
It is equipped between the top of set 3 and abutting portion 22 and compresses spring 32, a push the spring set 3 is separate to be supported compression spring 32 for providing
The elastic stress of contact portion 22, the lower end of spring pocket 3 are fixed with clamp 33；
Lock snap ring 4, locking snap ring 4 be placed in 1 bottom of injection tube and with 1 inner wall close fit of injection tube, locking snap ring 4 with
The bottom wall of injection tube 1, which has cooperatively formed, avoids cavity 41, wears and is connected on the first bayonet 11 outside the lower end of locking snap ring 4, is locked
4 middle part of snap ring is equipped with first through hole 42, and the inner edge of 4 lower end of locking snap ring is equipped with the first inclined surface 43；
Needle stand 5,5 upper end of needle stand are placed in socket part 12 and coordinate with 12 inner threads of socket part, and 5 middle part of needle stand is equipped with
Second through hole 51；
Needle guard part 6, needle guard part 6 is interspersed in the second through hole 51 of needle stand 5, and 6 top of needle guard part is fixed with opposite
The clamping portion 61 of setting, the upper end outer of clamping portion 61 are equipped with the second inclined surface 611 that connection is contradicted with the first inclined surface 43, phase
To in the upper end of two clamping portions 61 of setting along convexing to form the card slot 612 to match with clamp 33, in 6 lower end cavity of needle guard part
It is fixed with syringe needle 62, the second through hole 51 that syringe needle 62 is passed downwardly through needle stand 5 by needle guard part 6 extends to the outside of injection tube 1.
When needing to be made up a prescription and injected using syringe, as shown in Figure 1, 2, medical staff pushes to injection rod 2
Zero-bit, the bottom and the top of locking snap ring 4 of injection rod 2 contradict, since locking snap ring 4 and the bottom wall of injection tube 1 cooperatively form
Have and avoid cavity 41, and the second inclined surface 611 of the first inclined surface 43 and clamping portion 61 for locking snap ring 4 contradicts and connects, at this time
The clamping portion 61 being oppositely arranged is in the lock state, and the clamp 33 of spring pocket 3 can not be clamped with the card slot 611 on needle guard part 6,
Under the position-limiting action for locking snap ring 4, the self-destroying function of triggering syringe is avoided, realization is safely made up a prescription and injected, kept away
Exempt from malpractice.
, it is necessary to realize syringe self-destruction after injection completes syringe to extract outside human body, as shown in Figure 3,4, injection
The injection rod 2 of device pushes down from zero-bit continuation, and the lower end of injection rod 2 squeezes locking snap ring 4, drives locking snap ring 4 downward
The mobile bottom wall with injection tube contradicts, and medical staff may feel that apparent damping sense during operating, avoid cavity at this time
41 disappear, and the second inclined surface 611 of clamping portion 61, which departs to contradict with the first inclined surface 43 of locking snap ring 4, to be connected, spring pocket 3
Clamp 33 is clamped with the card slot 611 on needle guard part 6；Continuation down promotes injection rod 2, and rubber seal plug 23 is in the effect of thrust
Lower further compression, the upper end of needle guard part 6 squeeze spring pocket 3, and the first stop salient point 31 on spring pocket 3 is made to depart from and first
Groove 211 is clamped, and compression spring 32 is more than the elastic stress of spring pocket 3 clamping force of 6 and second bayonet 51 of needle guard part, makes bullet
Spring set 3 and needle guard part 6 are retracted to together in the cavity of injection rod 2, compression spring 32 stretch after can top pressure spring set 3 injecting
Top in 2 cavity of bar exposes injection rod 2, segmented syringe group in this way so as to ensure that syringe needle 62 will not be fallen after rise
Assembling structure, when medical staff's operating syringe implement injection and self-destruction, can there is apparent divided stages, and each stage has clearly
Clear operational feedback can ensure the security of implement injection, realize self-destructed reliability.
Preferably, First terrace 511 is additionally provided in the second through hole 51, the outer wall of needle guard part 6 is equipped with second step face 63
And coordinate to form the position limiting structure for preventing needle guard part 6 from moving down with First terrace 511.
Preferably, 2 bottom of injection rod is provided with to squeeze the rubber seal plug 23 of locking snap ring 4, the rubber seal plug
23 with 1 inner wall close fit of injection tube, further improve leakproofness.
Preferably, 2 upper end of injection rod is equipped with rear cover 25, and rear cover 25 is clamped with injection rod 2, prevents bullet after realization self-destroying function
Spring set 3 flies out injection rod 2.
Preferably, the second stop salient point 24 that the upper end outer wall of injection rod 2 is equipped with, 2 inner wall upper end of injection tube are equipped with and the
The second groove 13 that two stop salient points 24 match, after realizing self-destroying function, the second stop salient point 24 is clamped with the second groove 13,
So as to which injection rod 2 be avoided to extract injection tube 1, further syringe is avoided to be reused.
Preferably, 1 lower end of injection tube is also arranged with sheath 7, and sheath 7 is removably set on the outer wall of 5 lower end of needle stand,
Make syringe safer.
The above embodiment is only the preferred embodiment of the utility model, it is impossible to be protected with this to limit the utility model
Scope, the variation of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacing belongs to
In the utility model scope claimed.
Claims (6)
1. Segmented safety self-destroyed syringe, which is characterized in that including,
Injection tube, the bottom wall of injection tube radially inside contract to form the first bayonet, and socket part, socket part are provided with outside injection tube lower end
Inner wall be equipped with screw thread；
Injection rod, wearing for injection rod activity are connected in injection tube, and injection rod lower end and injection tube inner wall close fit, injection
It is cavity in bar, the bottom wall of injection rod radially inside contracts to form the second bayonet, and being equipped with below injection rod cavity can relative injection bar
The spring pocket moved upwards, the outer wall of spring pocket are equipped with the first stop salient point, and the inner wall of the second bayonet is equipped with and the first stop
First groove of salient point clamping, the inner wall lower section of injection rod are equipped with abutting portion, pressure are equipped between the top and abutting portion of spring pocket
Contracting spring, compression spring for providing an elastic stress of the push the spring set away from abutting portion, fix by the lower end of spring pocket
Equipped with clamp；
Lock snap ring, locking snap ring be placed in injection tube bottom and with injection tube inner wall close fit, lock snap ring and injection tube
Bottom wall has cooperatively formed avoidance cavity, locks to wear outside the lower end of snap ring and is connected on the first bayonet, and the is equipped in the middle part of locking snap ring
One through hole, the inner edge of locking snap ring lower end are equipped with the first inclined surface；
Needle stand, needle stand upper end are placed in socket part and coordinate with the inner thread of socket part, and the second through hole is equipped in the middle part of needle stand；
Needle guard part, needle guard part intert in the second through hole of needle stand, and the clamping being oppositely arranged is fixed with above needle guard part
Portion, the upper end outer of clamping portion are equipped with the second inclined surface that connection is contradicted with the first inclined surface, two clamping portions being oppositely arranged
Along the card slot to match with clamp is convexed to form in upper end, syringe needle is fixed in the cavity of needle guard part lower end, syringe needle is by needle guard part
The second through hole for passing downwardly through needle stand extends to the outside of injection tube.
2. Segmented safety self-destroyed syringe as described in claim 1, which is characterized in that is additionally provided in second through hole
One step surface, the outer wall of the needle guard part is equipped with second step face and coordinates with First terrace prevents that needle guard part is downward to be formed
Mobile position limiting structure.
3. Segmented safety self-destroyed syringe as described in claim 1, which is characterized in that the injection rod bottom sets useful
In the rubber seal plug for squeezing locking snap ring, the rubber seal plug and injection tube inner wall close fit.
4. Segmented safety self-destroyed syringe as described in claim 1, which is characterized in that after the injection rod upper end is equipped with
Lid, rear cover are clamped with injection rod.
5. Segmented safety self-destroyed syringe as described in claim 1, which is characterized in that the upper end outer wall of the injection rod is set
The second stop salient point having, injection tube inner wall upper end are equipped with the second groove to match with the second stop salient point.
6. Segmented safety self-destroyed syringe as described in claim 1, which is characterized in that the injection tube lower end is also arranged with
Sheath, sheath are removably set on the outer wall of needle stand lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720398435.5U CN207370946U (en) | 2017-04-14 | 2017-04-14 | Segmented safety self-destroyed syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720398435.5U CN207370946U (en) | 2017-04-14 | 2017-04-14 | Segmented safety self-destroyed syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207370946U true CN207370946U (en) | 2018-05-18 |
Family
ID=62298522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720398435.5U Expired - Fee Related CN207370946U (en) | 2017-04-14 | 2017-04-14 | Segmented safety self-destroyed syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207370946U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106860974A (en) * | 2017-04-14 | 2017-06-20 | 黄旭荣 | Segmented safety self-destroyed syringe |
-
2017
- 2017-04-14 CN CN201720398435.5U patent/CN207370946U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106860974A (en) * | 2017-04-14 | 2017-06-20 | 黄旭荣 | Segmented safety self-destroyed syringe |
| CN106860974B (en) * | 2017-04-14 | 2019-01-25 | 黄旭荣 | Segmented safety self-destroyed syringe |
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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 |
Granted publication date: 20180518 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |