CN205041912U - Safe syringe needle cover - Google Patents
Safe syringe needle cover Download PDFInfo
- Publication number
- CN205041912U CN205041912U CN201520643567.0U CN201520643567U CN205041912U CN 205041912 U CN205041912 U CN 205041912U CN 201520643567 U CN201520643567 U CN 201520643567U CN 205041912 U CN205041912 U CN 205041912U
- Authority
- CN
- China
- Prior art keywords
- movable part
- guide rail
- needle guard
- projection
- groove
- 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
Links
- 238000002347 injection Methods 0.000 claims abstract description 22
- 239000007924 injection Substances 0.000 claims abstract description 22
- 238000009827 uniform distribution Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 abstract 3
- 239000010959 steel Substances 0.000 abstract 3
- 239000003814 drug Substances 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides a safe syringe needle cover, safe syringe needle cover includes fixed portion, movable part, and fixed portion and movable part are the cylinder respectively, and fixed portion's one end is connected with the needle file, and fixed portion's the other end is connected with the one end slidable socket joint of movable part. The utility model discloses safe syringe needle cover adopts back the formula structure that contracts, and the doctor is using the syringe in -process, and the axis of needle cover and steel needle remains the unanimity throughout to do not need to pull out the contact pin cover alone, except that injection process, in the steel needle is in the protection of sheath all the time, furthest's reduction the exposure time of steel needle. Consequently, can make the probability greatly reduced that medical personnel were stabbed by the syringe needle to easy operation improves the syringe security greatly.
Description
Technical field
This utility model belongs to medical apparatus field, is specifically related to a kind of structure improved syringe.
Background technology
Conventional syringe needle guard, be all adopt plug-in type needle guard, the axis of needle guard can not be relative fixing with the axis of draw point, and therefore, medical personnel are when high strength, and needle guard is easy to cover partially, once cover partially, medical personnel are just easy to be stabbed by draw point.
Number of patent application 201420814417.7 discloses a kind of safety needle needle guard, comprise pin stalk, pintle, needle guard, also comprise hinge, described hinge one end is connected with pintle sidewall, the other end is connected with needle guard sidewall, and described needle guard take hinge axis as axis rotation; Described needle guard sidewall offers the groove of bottom opening, and described groove is used for card widening bolt, pin stalk.This safety needle needle guard and syringe, in use procedure, needle guard can not depart from syringe, not easily loses, easily finds, also facilitates simultaneously and is again inserted in.To extract and when being inserted in needle guard, only need break into two with one's hands from the side or close, hands can not exceed the position of needle point, unexpected stabbing can be avoided safely.
Utility model content
The purpose of this utility model is for the deficiencies in the prior art, provides a kind of convenient operation, and not easily injures the syringe of medical personnel.
The technical solution of the utility model is:
A kind of safety injector needle guard, described safety injector needle guard comprises standing part, movable part, standing part and movable part are respectively cylindrical shape, and one end of standing part is connected with needle stand, and the other end of standing part and one end of movable part slidably socket joint are connected.
During use, pushed by standing part in movable part, syringe needle exposes.When not using, pulled out by standing part from movable part, syringe needle enters into movable part inside.
The diameter of described standing part is less than the diameter of movable part, and the length of described standing part is less than or equal to the length of movable part.
The length of preferred standing part equals the length of movable part.Standing part pushes after in movable part, and standing part can be overlapping as much as possible with movable part, can increase the length that syringe needle exposes.
The other end end of described safety injector needle guard movable part is provided with baffle ring, and described baffle ring and movable part are coaxially arranged, and the cylindrical sidewall of described baffle ring is connected with the inwall of movable part.
Described safety injector needle guard also comprises spring, and described spring is coaxial with movable part, is arranged on the inside of movable part, and one end of described spring contacts with the end of standing part, and the other end of described spring contacts with the baffle ring of movable part.
Spring can make the needle guard of safety injector automatically reply into the state before not using from using state.
The lateral wall of described standing part is provided with guide rail, described guide rail is the strip groove paralleled with standing part axis, the length of described guide rail is less than the length of standing part, one end of described guide rail and one end of standing part flush, and the medial wall of described movable part one end is provided with the buckle matched with guide rail.
Be buckled in guide rail and slide, the relative position between standing part and movable part can be made to fix, can not slide in the process used, affect result of use.
On the lateral wall of described standing part, circumference uniform distribution is provided with multiple guide rail, and on the medial wall of described movable part one end, circumference uniform distribution is provided with multiple buckle matched with guide rail.
The lateral wall of the described guide rail other end is provided with injection draw-in groove, and the width of described injection draw-in groove is greater than the width of guide rail, and the length of described injection draw-in groove is greater than the length of buckle.
The lateral wall of described guide rail one end is provided with protection draw-in groove, and the width of described protection draw-in groove is greater than the width of guide rail, and the length of described protection draw-in groove is greater than the length of buckle.
Described buckle comprises projection and elastic fin, described projection is the strip perpendicular to movable part medial wall, the side of described projection is connected with the medial wall of movable part one end, the opposite side of described projection vertically stretches into movable part inside, the side of described elastic fin is connected with the edge of the opposite side of projection, between the opposite side of elastic fin and the sidewall of projection, interval is arranged, and the interval, medial wall of the opposite side of elastic fin and movable part is arranged.
Distance between described elastic fin opposite side and projection sidewall is greater than the difference of the width of guide rail and the width of projection, and is less than the difference of the width of injection draw-in groove and projection or protects the difference of the width of draw-in groove and the width of projection.
Elastic fin makes buckle have elasticity, and be buckled in when moving in guide rail, elastic fin is pressed in guide rail, and when buckle enters in injection draw-in groove or protection draw-in groove, elastic fin ejects, and is fixed the position between movable part and standing part.When needing relative motion between standing part and movable part, rotary moveable part, makes to produce relative rotation between movable part with standing part, is pressed in guide rail by buckle.
The opposite side of described elastic fin is outwards curling.
The opposite side of elastic fin is outwards curling, facilitates elastic fin to be ejected into from guide rail in protection draw-in groove or injection draw-in groove.
The advantage that this utility model has and good effect are: the syringe needle guard that this utility model provides adopts retracting type; doctor is in use syringe process; needle guard remains consistent with the axis of draw point; and do not need independent plug needle guard; except injection process; draw point is in the protection of sheath all the time, decreases the open-assembly time of draw point to greatest extent.Therefore, medical personnel can be made greatly to be reduced by the probability of needle sting, and simple to operate, greatly improve syringe safe.
Accompanying drawing explanation
Fig. 1 Fig. 2 is structural representation of the present utility model.
Principle schematic when Fig. 3 is utility model works.
Fig. 4 is this utility model overall schematic
Fig. 5 is this utility model standing part structural representation
Fig. 6 is this utility model movable part structural representation
In figure:
1, movable part 2, standing part 3, draw point 4, needle stand 5, spring 6, buckle
7, draw-in groove 8, guide rail 9, injection draw-in groove 10, projection 11, elastic fin is protected
Detailed description of the invention
As shown in Figure 1 and Figure 2, a kind of safety injector needle guard of this utility model, described safety injector needle guard comprises standing part 2, movable part 1, standing part 2 and movable part 1 are respectively cylindrical shape, one end of standing part 2 is connected with needle stand 4, and the other end of standing part 2 and one end of movable part 1 slidably socket joint are connected.The diameter of standing part 2 is less than the diameter of movable part 1, and the other end of movable part 1 is slidably inserted in one end of standing part 2.Be provided with baffle ring in the other end end of movable part 1, baffle ring and movable part 1 are coaxially arranged, and the cylindrical sidewall of baffle ring is connected with the inwall of movable part.
As shown in Figure 3, safety injector needle guard can also comprise spring 5, and spring 5 and movable part 1 are coaxially arranged on the inside of movable part 1, and one end of spring 5 contacts with the end of standing part 2, and the other end of spring 5 contacts with the baffle ring of movable part 1.
As shown in Fig. 2, Fig. 5, the lateral wall of standing part 2 is provided with guide rail 8, guide rail 8 is the strip groove paralleled with standing part 2 axis, the length of guide rail 8 is less than the length of standing part 2, one end of guide rail 8 and one end of standing part 2 flush, the other end of guide rail 8 and the other end of standing part 2 are provided with a bit of spacing, and the medial wall of movable part 1 one end is provided with the buckle 6 matched with guide rail 8.The lateral wall of standing part 2 can be provided with multiple guide rail 8 by circumference uniform distribution.The lateral wall of guide rail 8 other end is provided with protection draw-in groove 7, and the width of protection draw-in groove 9 is greater than the width of guide rail 8, and the length of protection draw-in groove 9 is greater than the length of buckle 6.The lateral wall of guide rail 8 one end is provided with injection draw-in groove 9, and the width of injection draw-in groove 9 is greater than the width of guide rail, and the length of described injection draw-in groove 9 is more than or equal to the length of buckle.
As shown in Figure 6, on the medial wall of movable part 1 one end, circumference uniform distribution is provided with multiple buckle 6 matched with guide rail 8.Buckle 6 comprises projection 10 and elastic fin 11, projection 10 is the strip perpendicular to movable part medial wall, the side of projection 10 is connected with the medial wall of movable part 1 one end, the opposite side of projection 10 vertically stretches into movable part 1 inside, the side of elastic fin 11 is connected with the edge of the opposite side of projection 10, between the opposite side of elastic fin 11 and the sidewall of projection 10, interval is arranged, and the interval, medial wall of the opposite side of elastic fin 11 and movable part 1 is arranged.Distance between elastic fin 11 opposite side and projection 10 sidewall is greater than the difference of the width of guide rail 8 and the width of projection 10, and is less than the difference of the width of injection draw-in groove 9 and projection 10 or protects the difference of the width of draw-in groove 7 and the width of projection 10.
Elastic fin 11 makes buckle 6 have elasticity; when buckle 6 moves in guide rail 8, elastic fin 11 is pressed in guide rail 6, when buckle 6 enters in injection draw-in groove 7 or protection draw-in groove 9; elastic fin 11 ejects, and is fixed the position between movable part 1 and standing part 2.When needing relative motion between standing part 2 and movable part 1, rotary moveable part 1, makes to produce relative rotation between movable part 1 with standing part 2, is pressed in guide rail 8 by buckle 6.
The work process of this example: syringe extracts medicinal liquid, and by needle guard movable part 1 near medicine bottle rubber stopper center, now, needle guard is in the lock state; Rotate clockwise syringe, now, buckle 6 departs from protection draw-in groove 7, and enter needle guard guide rail 8, now needle guard is in sliding mode; Take out medicine action when completing, extract draw point 3, now needle guard is under spring 5 active force, and automatic rebounding, to lock-out state, plays a protective role; To patient's liquid medicine injection, turn clockwise needle guard movable part 1, needle guard movable part 1 is pulled down to needle guard injection draw-in groove 9, under the elastic force effect of needle guard buckle 6, buckle 6 snaps in needle guard injection draw-in groove 9 automatically, now syringe needle is exposed, completes action of injection, when medicinal liquid is injected into after in patient body, extract draw point 3, turn clockwise needle guard movable part 1, and needle guard movable part 1, under the elastic force active force of spring 5 and buckle part 6, springs back to lock-out state.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to this utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (10)
1. a safety injector needle guard, it is characterized in that: described safety injector needle guard comprises standing part, movable part, standing part and movable part are respectively cylindrical shape, one end of standing part is connected with needle stand, and the other end of standing part and one end of movable part slidably socket joint are connected.
2. safety injector needle guard according to claim 1, is characterized in that: the diameter of described standing part is less than the diameter of movable part, and the length of described standing part is less than or equal to the length of movable part.
3. safety injector needle guard according to claim 1 and 2, it is characterized in that: the other end end of described safety injector needle guard movable part is provided with baffle ring, described baffle ring and movable part are coaxially arranged, and the cylindrical sidewall of described baffle ring is connected with the inwall of movable part.
4. safety injector needle guard according to claim 3, it is characterized in that: described safety injector needle guard also comprises spring, described spring is coaxial with movable part, be arranged on the inside of movable part, one end of described spring contacts with the end of standing part, and the other end of described spring contacts with the baffle ring of movable part.
5. safety injector needle guard according to claim 4, it is characterized in that: the lateral wall of described standing part is provided with guide rail, described guide rail is the strip groove paralleled with standing part axis, the length of described guide rail is less than the length of standing part, one end of described guide rail and one end of standing part flush, and the medial wall of described movable part one end is provided with the buckle matched with guide rail.
6. safety injector needle guard according to claim 5, is characterized in that: on the lateral wall of described standing part, circumference uniform distribution is provided with multiple guide rail, on the medial wall of described movable part one end, circumference uniform distribution is provided with multiple buckle matched with guide rail.
7. safety injector needle guard according to claim 6, is characterized in that: the lateral wall of the described guide rail other end is provided with injection draw-in groove, and the width of described injection draw-in groove is greater than the width of guide rail, and the length of described injection draw-in groove is greater than the length of buckle.
8. safety injector needle guard according to claim 7, is characterized in that: the lateral wall of described guide rail one end is provided with protection draw-in groove, and the width of described protection draw-in groove is greater than the width of guide rail, and the length of described protection draw-in groove is greater than the length of buckle.
9. safety injector needle guard according to claim 8, it is characterized in that: described buckle comprises projection and elastic fin, described projection is the strip perpendicular to movable part medial wall, the side of described projection is connected with the medial wall of movable part one end, the opposite side of described projection vertically stretches into movable part inside, the side of described elastic fin is connected with the edge of the opposite side of projection, between the opposite side of elastic fin and the sidewall of projection, interval is arranged, and the interval, medial wall of the opposite side of elastic fin and movable part is arranged.
10. safety injector needle guard according to claim 9; it is characterized in that: the distance between described elastic fin opposite side and projection sidewall is greater than the difference of the width of guide rail and the width of projection, and be less than the difference of the width of injection draw-in groove and projection or protect the difference of the width of draw-in groove and the width of projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520643567.0U CN205041912U (en) | 2015-08-24 | 2015-08-24 | Safe syringe needle cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520643567.0U CN205041912U (en) | 2015-08-24 | 2015-08-24 | Safe syringe needle cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205041912U true CN205041912U (en) | 2016-02-24 |
Family
ID=55335533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520643567.0U Expired - Fee Related CN205041912U (en) | 2015-08-24 | 2015-08-24 | Safe syringe needle cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205041912U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106474602A (en) * | 2015-08-24 | 2017-03-08 | 山东威高集团医用高分子制品股份有限公司 | A kind of safety injector needle guard |
| CN107669329A (en) * | 2017-10-24 | 2018-02-09 | 苏州爱宝利恩精密器械科技有限公司 | A kind of disconnectable Medical orthopedic implantation strapping of puncturing head |
-
2015
- 2015-08-24 CN CN201520643567.0U patent/CN205041912U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106474602A (en) * | 2015-08-24 | 2017-03-08 | 山东威高集团医用高分子制品股份有限公司 | A kind of safety injector needle guard |
| CN107669329A (en) * | 2017-10-24 | 2018-02-09 | 苏州爱宝利恩精密器械科技有限公司 | A kind of disconnectable Medical orthopedic implantation strapping of puncturing head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20180824 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |