CN209301918U - A kind of medical needle shield - Google Patents
A kind of medical needle shield Download PDFInfo
- Publication number
- CN209301918U CN209301918U CN201821751399.7U CN201821751399U CN209301918U CN 209301918 U CN209301918 U CN 209301918U CN 201821751399 U CN201821751399 U CN 201821751399U CN 209301918 U CN209301918 U CN 209301918U
- Authority
- CN
- China
- Prior art keywords
- needle guard
- needle
- syringe
- pin hole
- liquid part
- 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
Abstract
The utility model discloses a kind of medical needle shields, including syringe and the needle guard being set on syringe pintle；The needle guard is that one end has the opening closed hollow circle tube structure of the other end；The needle guard inner wall is provided with internal screw thread along its circumferential direction close to opening；The pintle of the syringe is provided with the external screw thread matched with internal screw thread along its circumferential direction；Gear liquid part is provided in the needle guard, the gear liquid part is the shell structure of truncated cone-shaped；The large diameter end of the gear liquid part is towards needle guard open end, and small-caliber end is towards needle guard bottom；The outer rim of the large diameter end of the gear liquid part is bonded with needle guard inner wall.The medical needle shield of the utility model can be effectively prevented needle guard and fall off, while can prevent residual liquid in syringe from leaking.The staff for effectively preventing processing medical waste is stabbed, and the risk that staff is infected by residual liquid is avoided.
Description
Technical field
The utility model relates to the field of medical instrument technology, it particularly relates to a kind of medical needle shield.
Background technique
Medical needle, such as hypodermic needle, biopsy needle, intravenous inducting device, trocar, seal wire, pneumothorax puncture needle, these make
With after the pathogen that can be stained with drug or patient later become dangerous goods, and due to accident by these have syringe needle device
The case that tool pierces is too numerous to enumerate, in order to avoid by it is such it is contaminated thorn part stab or therefore and infect health risk, it is existing
Have some protective devices in technology, however existing some protective device protection and not in place, often it is also possible to by two
Secondary injury.
Furthermore existing a variety of medical needles be it is disposable, simply put on needle cap after use and soon abandon, due to
Needle cap is simultaneously insecure, can also damage to the staff for handling these medical wastes.Existing needle cap cannot prevent simultaneously
Residual liquid flows out in syringe, may mix with the blood on syringe needle when residual liquid outflow in syringe, therefore carries upper blood
Virus in liquid.May be infected disease when the skin of the staff of processing medical waste accidentally touches the residual liquid of outflow
Poison causes the indirect infection of disease, damages the health of staff.
Utility model content
To solve problems of the prior art, the purpose of the utility model is to provide a kind of medical needle shields.
A kind of medical needle shield that in order to achieve the above purposes, the technical solution adopted by the utility model is:, including injection
Device and the needle guard being set on syringe pintle；The needle guard is that one end has the opening closed hollow circle tube structure of the other end；
The needle guard inner wall is provided with internal screw thread along its circumferential direction close to opening；The pintle of the syringe along its circumferential direction be provided with it is interior
The external screw thread that screw thread matches；Gear liquid part is provided in the needle guard, the gear liquid part is the shell structure of truncated cone-shaped；The gear
The large diameter end of liquid part is towards needle guard open end, and small-caliber end is towards needle guard bottom；The outer rim of the large diameter end of the gear liquid part
It is bonded with needle guard inner wall.
The needle portion of syringe is arranged in needle guard.Syringe is in use, needle guard is removed in rotation.Syringe uses
End screws on needle guard.Needle guard is threadedly coupled with pintle, and the case where needle guard falls off can be effectively prevented.When being remained in syringe
When liquid is accidentally injected into needle guard, the gear liquid part being arranged in needle guard can prevent liquid splash.
Preferably, needle guard closed end end face eccentric is provided with threaded hole；The threaded hole threaded connection bolt；The bolt
Head be arranged outside needle guard, screw rod be arranged in needle guard；Pin hole is arranged in the screw rod end face, and the pin hole is set axially along a screw
It sets, the needle stalk of the syringe is arranged in pin hole.After syringe use, needle guard is screwed on into pintle.This hour hand obstructs through needle
The small-caliber end of gear liquid part protrudes into pin hole in set, rotates bolt later.Because bolt is relative to needle guard closed end end face eccentric
Setting, so pin hole is relative to bolt also eccentric setting.When rotating bolt, the needle stalk in pin hole is bent in rotation process, from
And reaching destruction needle stalk prevents syringe needle to be recycled.Needle stalk setting can be effectively ensured when there is residual in syringe in pin hole
When liquid, residual liquid can be collected in pin hole and not leaked by bolt.
Preferably, needle guard closed end end face is provided with opening, and the needle guard inner wall is symmetrically arranged with two sliding slots, the cunning
Slot is axially arranged along needle guard；Be provided with rotary table in the needle guard, the frustum cone side is symmetrically arranged with two sliding blocks, the sliding block with
Sliding slot sliding connection, the rotary table end face are provided with the first pin hole, and first pin hole is axially obliquely installed along rotary table, institute
The tilt angle for stating the first pin hole is identical as syringe needle point gradient.Enter in use, the needle point of syringe passes through gear liquid part
Into the first pin hole, rotary table is axially pressed along needle guard at this time, the first pin hole on rotary table is set by the bending of needlepoint by pressure of syringe,
Syringe needle is prevented to be recycled to reach destruction needle stalk.
Preferably, pinhole diameter is greater than needle and obstructs 0.05-0.1mm.Pinhole diameter is obstructed slightly larger than needle, and needle stalk, which is effectively ensured, to be stretched
Enter into pin hole.
Preferably, adhesive silica gel is provided in pin hole.When needle stalk enters pin hole, the silica gel in pin hole can be by needle
Point is blocked, and can effectively prevent leaking for residual liquid in needle tubing.
Preferably, needle guard bottom is fixedly installed sponge.When there is residual liquid in syringe, if residual liquid quilt accidentally
It squeezes out syringe and enters needle guard.The sponge being arranged in needle guard can effectively absorb residual liquid, and residual liquid is avoided to leak.
The beneficial effects of the utility model are:
(1) medical needle shield of the utility model can be effectively prevented needle guard and fall off, while can prevent in syringe
Residual liquid leaks.The staff for effectively preventing processing medical waste is stabbed, and avoids staff because of residual liquid
And the risk infected.
(2) by the bolt of the eccentric setting on needle guard, needle can also be obstructed and is destroyed, can effectively prevent syringe needle and returned
It receives and utilizes.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model medical needle shield；
Fig. 2 is the structural schematic diagram of medical needle shield in the utility model embodiment 2.
Description of symbols:
1, syringe；11, pintle；12, needle obstructs；13, needle point；2, needle guard；3, liquid part is kept off；4, bolt；41, pin hole；5, sliding
Slot；6, rotary table；61, sliding block；62, the first pin hole.
Specific embodiment
The embodiments of the present invention are described in detail with reference to the accompanying drawing.
Embodiment 1:
As shown in Figs. 1-2, a kind of medical needle shield, including syringe 1 and the needle being set on 1 pintle 11 of syringe
Set 2；The needle guard 2 is that one end has the opening closed hollow circle tube structure of the other end；2 inner wall of needle guard is close to opening edge
Its circumferential direction is provided with internal screw thread；The pintle 11 of the syringe 1 is provided with the external screw thread matched with internal screw thread along its circumferential direction；Institute
It states and is provided with gear liquid part 3 in needle guard 2, the gear liquid part 3 is the shell structure of truncated cone-shaped；The large diameter end court of the gear liquid part 3
To 2 open end of needle guard, small-caliber end is towards 2 bottom of needle guard；The outer rim and 2 inner wall of needle guard of the large diameter end of the gear liquid part 3 are pasted
It closes.
The needle portion of syringe 1 is arranged in needle guard 2.Syringe 1 is in use, needle guard 2 is removed in rotation.Syringe
1 screws on needle guard 2 using end.Needle guard 2 is threadedly coupled with pintle 11, and the case where needle guard 2 falls off can be effectively prevented.Work as note
When residual liquid is accidentally injected into needle guard 2 in emitter 1, the gear liquid part 3 being arranged in needle guard 2 can prevent liquid splash.
Embodiment 2:
As shown in Figs. 1-2, on the basis of embodiment 1,2 closed end end face eccentric of needle guard is provided with screw thread to the present embodiment
Hole；The threaded hole threaded connection bolt 4；The head of the bolt 4 is arranged outside needle guard 2, and screw rod is arranged in needle guard 2；Institute
Screw rod end face setting pin hole 41 is stated, the pin hole 41 is arranged axially along a screw, and the needle stalk 12 of the syringe 1 is arranged in pin hole 41
It is interior.After 1 use of syringe, needle guard 2 is screwed on into pintle 11.The small-caliber end that this hour hand stalk 12 keeps off liquid part 3 in needle guard 2 is stretched
Enter in pin hole 41, rotates bolt 4 later.Because bolt 4 is arranged relative to 2 closed end end face eccentric of needle guard, 41 phase of pin hole
For bolt 4 also eccentric setting.When rotating bolt 4, the needle stalk 12 in pin hole 41 is bent in rotation process, to reach destruction
Needle stalk 12 prevents syringe needle to be recycled.12 setting of needle stalk can be effectively ensured when having Liquid Residue in syringe 1 in pin hole 41
When body, residual liquid, which can be collected in pin hole 41, not to be leaked by bolt 4.
Embodiment 3:
As shown in Figs. 1-2, on the basis of embodiment 1,2 closed end end face of needle guard is provided with opening to the present embodiment, described
2 inner wall of needle guard is symmetrically arranged with two sliding slots 5, and the sliding slot 5 is along the axial setting of needle guard 2；It is provided with rotary table 6 in the needle guard 2,
6 side of rotary table is symmetrically arranged with two sliding blocks 61, and the sliding block 61 is slidably connected with sliding slot 5, and 6 end face of rotary table is set
It is equipped with the first pin hole 62, first pin hole 62 is along the axially inclined setting of rotary table 6, the tilt angle and note of first pin hole 62
Emitter 1 needle point, 13 gradients are identical.It is entered in the first pin hole 62 in use, the needle point 13 of syringe 1 passes through gear liquid part 3, this
When along needle guard 2 axially press rotary table 6, the first pin hole 62 being arranged on rotary table 6 bends the needle point 13 of syringe 1, to reach
Syringe needle is prevented to be recycled to needle stalk 12 is destroyed.
Embodiment 4:
As shown in Figs. 1-2, on the basis of embodiment 2,41 diameter of pin hole is greater than needle and obstructs 120.05-0.1mm the present embodiment.
Slightly larger than needle stalk 12, needle stalk 12 is effectively ensured can extend into pin hole 41 41 diameter of pin hole.
Embodiment 5:
As shown in Figs. 1-2, the present embodiment is provided with adhesive silica gel on the basis of embodiment 2 in pin hole 41.In needle
When stalk 12 enters pin hole 41, the silica gel in pin hole 41 can be blocked needle point 13, can effectively prevent the outer of residual liquid in needle tubing
It lets out.
Embodiment 6:
As shown in Figs. 1-2, on the basis of embodiment 1,2 bottom of needle guard is fixedly installed sponge to the present embodiment.Work as injection
When having residual liquid in device 1, if residual liquid is squeezed out syringe 1 accidentally and enters needle guard 2.The sponge being arranged in needle guard 2 can
Effectively to absorb residual liquid, residual liquid is avoided to leak.
Specific embodiment of the present utility model above described embodiment only expresses, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.
Claims (6)
1. a kind of medical needle shield, including syringe and the needle guard being set on syringe pintle；It is characterized in that, described
Needle guard is that one end has the opening closed hollow circle tube structure of the other end；The needle guard inner wall is circumferentially arranged close to opening along it
There is internal screw thread；The pintle of the syringe is provided with the external screw thread matched with internal screw thread along its circumferential direction；Setting in the needle guard
There is gear liquid part, the gear liquid part is the shell structure of truncated cone-shaped；The large diameter end of the gear liquid part is towards needle guard open end, osculum
Diameter end is towards needle guard bottom；The outer rim of the large diameter end of the gear liquid part is bonded with needle guard inner wall.
2. medical needle shield according to claim 1, which is characterized in that the setting of needle guard closed end end face eccentric
There is threaded hole；The threaded hole threaded connection bolt；The head of the bolt is arranged outside needle guard, and screw rod is arranged in needle guard；
Pin hole is arranged in the screw rod end face, and the pin hole is arranged axially along a screw, and the needle stalk of the syringe is arranged in pin hole.
3. medical needle shield according to claim 1, which is characterized in that needle guard closed end end face is provided with out
Mouthful, the needle guard inner wall is symmetrically arranged with two sliding slots, and the sliding slot is axially arranged along needle guard；Circle is provided in the needle guard
Platform, the frustum cone side are symmetrically arranged with two sliding blocks, and the sliding block is in sliding fit with the sliding chute connection, and the rotary table end face is provided with
First pin hole, first pin hole are axially obliquely installed along rotary table, and the tilt angle of first pin hole is inclined with syringe needle point
Gradient is identical.
4. medical needle shield according to claim 2, which is characterized in that the pinhole diameter is greater than needle and obstructs 0.05-
0.1mm。
5. medical needle shield according to claim 2, which is characterized in that be provided with adhesive silicon in the pin hole
Glue.
6. medical needle shield according to claim 1, which is characterized in that the needle guard bottom is fixedly installed sea
It is continuous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821751399.7U CN209301918U (en) | 2018-10-28 | 2018-10-28 | A kind of medical needle shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821751399.7U CN209301918U (en) | 2018-10-28 | 2018-10-28 | A kind of medical needle shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209301918U true CN209301918U (en) | 2019-08-27 |
Family
ID=67671713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821751399.7U Expired - Fee Related CN209301918U (en) | 2018-10-28 | 2018-10-28 | A kind of medical needle shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209301918U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112827019A (en) * | 2021-01-06 | 2021-05-25 | 张峰 | Inward-rolling destroyer for medical syringe needle head of infectious disease department |
-
2018
- 2018-10-28 CN CN201821751399.7U patent/CN209301918U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112827019A (en) * | 2021-01-06 | 2021-05-25 | 张峰 | Inward-rolling destroyer for medical syringe needle head of infectious disease department |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190827 Termination date: 20201028 |