CN209316712U - The syringe that a kind of anti-needle is stabbed and syringe needle falls off - Google Patents
The syringe that a kind of anti-needle is stabbed and syringe needle falls off Download PDFInfo
- Publication number
- CN209316712U CN209316712U CN201821280622.4U CN201821280622U CN209316712U CN 209316712 U CN209316712 U CN 209316712U CN 201821280622 U CN201821280622 U CN 201821280622U CN 209316712 U CN209316712 U CN 209316712U
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- China
- Prior art keywords
- needle
- syringe
- circular
- stab
- sheath
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- 239000007788 liquid Substances 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 description 26
- 238000002347 injection Methods 0.000 description 16
- 239000007924 injection Substances 0.000 description 16
- 239000003814 drug Substances 0.000 description 8
- 239000003708 ampul Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 206010022114 Injury Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002708 enhancing Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 201000009910 diseases by infectious agent Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010254 subcutaneous injection Methods 0.000 description 1
- 239000007929 subcutaneous injection Substances 0.000 description 1
Abstract
It is stabbed the utility model discloses a kind of anti-needle and syringe that syringe needle falls off, including needle cap, syringe needle and syringe, the syringe needle includes needle stand and the syringe needle that is arranged on needle stand, the needle stand is connected through a screw thread with needle cap, and the bottom outer surface of needle stand is equipped with rotatable parts, the rotatable parts are rotatably connected to anti-stab sheath, the anti-stab sheath is equipped with needle tubing accommodating cavity, needle body locking mechanism is equipped in the needle tubing accommodating cavity, the anti-stab sheath is equipped with circular through hole in the side away from needle tubing accommodating cavity, the needle cylinder surface corresponds to circular through hole equipped with circular protrusions, one end of the circular protrusions is fixed in needle cylinder surface, the other end passes through the circular through hole and is equipped with hemispherical projections, the hemispherical projections are fixed on the side wall of the circular protrusions, the anti-stab sheath is clamped by circular through hole and the circular protrusions, the needle Head interconnecting piece holds liquid portion with syringe by frustum interconnecting piece and is fixedly connected, and the syringe is connected through a screw thread with needle stand.
Description
Technical field
The utility model relates to medical instruments fields, it particularly relates to the injection that a kind of anti-needle is stabbed and syringe needle falls off
Device.
Background technique
Syringe is the common instrument of medical treatment, uses when for subcutaneous injection with venous transfusion, uses syringe when syringe
Medical fluid is extracted in ampulla by splendid attire medical fluid, medical fluid sucks in injection tube, some medical fluids are will note after medical care station is extracted
Emitter takes ward to and medical fluid is injected patient's body, covers syringe needle with needle cap after syringe draws medical fluid from medical care station and send to disease
During room, the connection type of traditional needle cap and syringe needle, which is easily easy to happen, to fall off, and the company of conventional injection syringe needle and injection tube
It connects mode and is also easy to happen and fall off, easily pollute medical fluid, and the excessive medical fluid of pressure is easy to go out outside syringe, it is used
Syringe will be recovered, and medical staff usually can accidentally be injected the syringe needle of device during recycling used syringe
It pricks, infects medical staff easily.
Utility model content
To solve problems of the prior art, it is stabbed the purpose of the utility model is to provide a kind of anti-needle and syringe needle is de-
The syringe fallen keeps needle cap and the connection type of syringe needle, syringe needle and syringe not easily to fall off, and no longer need to after using syringe by
Needle cap, which connect to be prevented from syringe needle and pierce medical staff with syringe needle, to be caused to infect.
In order to achieve the above purposes, the technical solution adopted by the utility model is: including syringe and is mounted on upper end
Needle stand is connected with the syringe needle with needle cap on the needle stand, and the upper end is tapered and upper end is fixed with needle stand connection
Portion, the needle stand interconnecting piece are threaded in inside needle stand, the open end of needle cap be socketed on needle stand and with needle stand screw thread
Connection；
The syringe side is equipped with anti-stab sheath, and the anti-stab sheath is equipped with needle tubing accommodating cavity, institute away from the side of syringe
Hub outer surface lower part is stated equipped with rotatable parts, the rotatable parts include fixing piece and rotating member, the rotating member with it is described
Anti-stab sheath is connected, and the rotating member is fixed on the hub outer surface, and the fixing piece and rotating member are rotatablely connected；The needle
Tube capacity sets intracavitary middle position equipped with needle body locking mechanism, and the anti-stab sheath is equipped with round logical close to the side of the syringe
Hole, the syringe outer surface correspond to the circular through hole equipped with circular protrusions, and one end of the circular protrusions is fixed in outside syringe
On surface, the other end passes through the circular through hole and is equipped with hemispherical projections, and the hemispherical projections are fixed in the circular protrusions
Side wall on, the anti-stab sheath is clamped by circular through hole and the circular protrusions；The syringe include syringe hold liquid portion with
And the boosting bar in syringe appearance liquid portion is set, the needle stand interconnecting piece holds fixed company, liquid portion by frustum interconnecting piece and syringe
It connects, the boosting bar is located at one end that the syringe holds in liquid portion and is connected with piston, and the other end of the boosting bar extends needle
Cylinder holds liquid portion and is equipped with round plate.
Before the use, the anti-stab sheath is located at syringe side to syringe, and the needle stand is equipped with the first external screw thread, institute
Needle cap is stated equipped with the first internal screw thread, the needle stand is connected through a screw thread with needle cap, medical staff can be made by knob needle cap and
Syringe needle separation inserts the needle into the ampulla for containing medical fluid by pulling boosting bar that piston motion is driven to draw medical fluid, then by needle
Cap is connect by knob with syringe needle, and air is prevented to contact with medical fluid, and thread connecting mode makes needle cap be not easy to slide, and medical staff will
Syringe, which is brought, carries out liquid medicine injection to patient to ward, and in liquid medicine injection, the syringe holds the circular protrusions of liquid portion outer surface
Circular through hole on the anti-stab sheath, blocks the hemispherical projections by the circular through hole, has ensured and has injected
The anti-stab sheath, which will not teetertotter, in the process influences medical staff's normal injection medical fluid, and the frustum interconnecting piece and syringe hold
The affixed pressure for slowing down medical fluid in injection in liquid portion, avoids liquid medicine flow pressure is excessive from going out syringe, injection finishes will be anti-stab
Sheath rotates upwards makes needle body locking mechanism lock syringe needle, prevents sharps injury medical staff or its personnel, sets on the needle stand
There is the second internal screw thread, the syringe is equipped with the second external screw thread, and the syringe is connected through a screw thread with the needle stand, in order to prevent
When pushing injecting fluid, pressure is excessive that needle stand is caused to separate with syringe for the boosting bar in syringe in use.
Preferably, the needle body locking structure includes inverse tying plate and hook block, and the inverse tying plate is vertically set on the needle
Tube capacity is set intracavitary, and the root of the inverse tying plate is fixed on needle tubing accommodating cavity wall, and the front end of the inverse tying plate is in hook,
The hook block is symmetricly set on the side wall of needle tubing accommodating cavity opening two sides, and the opposing sidewalls of the two hook blocks are in interior
Recessed arc-shaped, the gap between two hook blocks match with the outer diameter at the top of the needle stand.
Syringe rotates anti-stab sheath after use upwards clasps syringe needle at the hook for making inverse tying plate, prevents its cunning
The needle tubing accommodating cavity out is avoided stabbing medical staff or other staff, and is stuck between two hooks at the top of the needle stand, is prevented
Only it shakes, and enhances the stability that the syringe needle is connect with the anti-stab sheath.
Preferably, needle cap is made of medical plastic material.Medical fluid will not be polluted, and can effectively obstruct medical fluid and sky
The contact of gas.
Preferably, the outer surface of the syringe is equipped with graduation mark.The dosage for drawing medical fluid is observed convenient for medical staff, and
Convenient for controlling medical fluid output quantity, the maximum capacity of the graduation mark is no more than 5ml.
The beneficial effects of the utility model are:
A kind of protection that is safe and practical and carrying out anti-liquid medicine contamination to the syringe needle of syringe is provided, and is prevented to medical care people
Member's brings infection, and has no effect on injection operation when carrying out liquid medicine injection to patient, in the feelings of no contact stain syringe
Under condition, detachable needle changes clean syringe needle and continues to use, cost-saved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the syringe that a kind of anti-needle of the utility model embodiment is stabbed and syringe needle falls off；
Fig. 2 is the side view that the anti-stab sheath of the utility model embodiment covers syringe needle；
Fig. 3 is the main view that the anti-stab sheath of the utility model embodiment covers syringe needle；
Fig. 4 is the top view that the anti-stab sheath of the utility model embodiment covers syringe needle；
Fig. 5 is the partial schematic diagram of A in the utility model embodiment Fig. 1；
Description of symbols:
1, syringe；11, needle stand interconnecting piece；12, syringe holds liquid portion；13, boosting bar；14, frustum interconnecting piece；15, circular flat
Plate；16, circular protrusions；17, hemispherical projections；2, needle stand；21, syringe needle；221, rotatable parts；222, fixing piece；223, it rotates
Part；3, needle cap；4, anti-stab sheath；41, needle tubing accommodating cavity；42, inverse tying plate；43, hook block；44, circular through hole；5, graduation mark.
Specific embodiment
The embodiments of the present invention are described in detail with reference to the accompanying drawing.
Embodiment 1:
As shown in Figs. 1-5, the syringe that a kind of anti-needle is stabbed and syringe needle falls off, including syringe 1 and it is mounted on 1 upper end of syringe
Needle stand 2, be connected with the syringe needle 21 with needle cap 3 on the needle stand 2,1 upper end of syringe is tapered and 1 upper end of syringe is fixed with
2 interconnecting piece 11 of needle stand, 2 interconnecting piece 11 of needle stand are threaded in inside needle stand 2, and the open end of needle cap 3 is socketed in needle
It is threadedly coupled on seat 2 and with needle stand 2；
1 side of syringe is equipped with anti-stab sheath 4, and the anti-stab sheath 4 is equipped with needle tubing accommodating cavity away from the side of syringe 1
41, the 2 outer surface lower part of needle stand is equipped with rotatable parts 221, and the rotatable parts 221 include fixing piece 222 and rotating member
223, the rotating member 223 is connected with the anti-stab sheath 4, and the rotating member 223 is fixed on 2 outer surface of needle stand, described
Fixing piece 222 and rotating member 223 are rotatablely connected；Middle position is equipped with needle body locking mechanism in the needle tubing accommodating cavity 41, described
Anti-stab sheath 4 is equipped with circular through hole 44 close to the side of the syringe 1, and 1 outer surface of syringe corresponds to the circular through hole 44
Equipped with circular protrusions 16, one end of the circular protrusions 16 is fixed on 1 outer surface of syringe, and the other end passes through the circular through hole
44 are equipped with hemispherical projections 17, and the hemispherical projections 17 are fixed on the side wall of the circular protrusions 16, the anti-stab sheath 4
It is clamped by circular through hole 44 and the circular protrusions 16；The syringe 1 includes that syringe 1 holds liquid portion and setting in the appearance of syringe 1
Boosting bar 13 in liquid portion, 2 interconnecting piece 11 of needle stand holds liquid portion with syringe 1 by frustum interconnecting piece 14 and is fixedly connected, described
Boosting bar 13 is located at one end that the syringe 1 holds in liquid portion and is connected with piston, and the other end of the boosting bar 13 extends syringe 1
Hold liquid portion and is equipped with round plate 15.
Before the use, the anti-stab sheath 4 is located at 1 side of syringe to syringe, and the needle stand 2 is equipped with the first outer spiral shell
Line, needle cap 3 are equipped with the first internal screw thread, and the needle stand 2 is connected through a screw thread with needle cap 3, and medical staff can pass through knob
It separates needle cap 3 with syringe needle 21, syringe needle 21 is inserted into the ampulla for containing medical fluid by pulling boosting bar 13 to drive piston motion
Medical fluid is drawn, then needle cap 3 is connect by knob with syringe needle 21, prevents air from contacting with medical fluid, thread connecting mode makes needle cap 3
It is not easy to slide, syringe is brought and carries out liquid medicine injection to patient to ward by medical staff, and in liquid medicine injection, the syringe 1 holds
Circular through hole 44 of the circular protrusions 16 of liquid portion outer surface on the anti-stab sheath 4, makes the hemispherical projections 17 by institute
It states circular through hole 44 to block, having ensured the anti-stab sheath 4 described in injection process will not teetertotter to influence medical staff normal
Liquid medicine injection, injection, which finishes upwards to rotate anti-stab sheath 4, makes needle body locking mechanism lock syringe needle 21, prevents the injury doctor of syringe needle 21
Shield personnel or its personnel, the needle stand 2 are equipped with the second internal screw thread, and the syringe 1 is equipped with the second external screw thread, the syringe 1
Be connected through a screw thread with the needle stand 2, in order to prevent in use the boosting bar 13 in syringe 1 when pushing injecting fluid
Pressure is excessive to cause needle stand 2 to separate with syringe 1.
Embodiment 2:
As shown in Figs. 1-5, on the basis of embodiment 1, the needle body locking structure includes 42 He of inverse tying plate to the present embodiment
Hook block 43, the inverse tying plate 42 are vertically set in the needle tubing accommodating cavity 41, and the root of the inverse tying plate 42 is fixed on institute
It states on 41 inner wall of needle tubing accommodating cavity, the front end of the inverse tying plate 42 is in hook, and the hook block 43 is symmetricly set on the needle tubing
Accommodating cavity 41 is open on the side wall of two sides, and the opposing sidewalls of the two hook blocks 43 are in the arc-shaped of indent, between two hook blocks 43
The outer diameter at 2 top of gap and the needle stand match.
Syringe rotates anti-stab sheath 4 after use upwards clasps syringe needle 21 at the hook for making inverse tying plate 42, prevents
Only it skids off the needle tubing accommodating cavity 41, avoids stabbing medical staff or other staff, and the top of the needle stand 2 is stuck in two cards
Between hook, its shaking is prevented, enhances the stability that the syringe needle 21 is connect with the anti-stab sheath 4.
Embodiment 3:
As shown in Figs. 1-5, on the basis of embodiment 1, needle cap 3 is made the present embodiment of medical plastic material,
Medical fluid will not be polluted, and can effectively obstruct contact of the medical fluid with air.The outer surface of the syringe 1 is equipped with graduation mark 5, convenient for doctor
Shield personnel observe the dosage for drawing medical fluid, and convenient for control medical fluid output quantity, the maximum capacity of the graduation mark 5 is no more than
5ml。
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 (4)
- The syringe that 1. a kind of anti-needle is stabbed and syringe needle falls off, including syringe and the needle stand for being mounted on upper end, the needle stand On be connected with the syringe needle with needle cap, which is characterized in that the upper end is tapered and upper end is fixed with needle stand interconnecting piece, The needle stand interconnecting piece is threaded in inside needle stand, and the open end of needle cap is socketed on needle stand and connects with needle stand screw thread It connects；The syringe side is equipped with anti-stab sheath, and the anti-stab sheath is equipped with needle tubing accommodating cavity, the needle away from the side of syringe Seat outer surface lower part is equipped with rotatable parts, and the rotatable parts include fixing piece and rotating member, the rotating member with it is described anti-stab Sheath is connected, and the rotating member is fixed on the hub outer surface, and the fixing piece and rotating member are rotatablely connected；The needle tubing holds Intracavitary middle position is set equipped with needle body locking mechanism, the anti-stab sheath is equipped with circular through hole, institute close to the side of the syringe It states syringe outer surface and corresponds to the circular through hole equipped with circular protrusions, one end of the circular protrusions is fixed in syringe outer surface On, the other end passes through the circular through hole and is equipped with hemispherical projections, and the hemispherical projections are fixed in the side of the circular protrusions On wall, the anti-stab sheath is clamped by circular through hole and the circular protrusions；The syringe includes that syringe holds liquid portion and sets It sets and holds the boosting bar in liquid portion in syringe, the needle stand interconnecting piece holds liquid portion with syringe by frustum interconnecting piece and is fixedly connected, institute It states one end that boosting bar is located in syringe appearance liquid portion and is connected with piston, the other end of the boosting bar extends syringe and holds liquid Portion is simultaneously equipped with round plate.
- The syringe that 2. a kind of anti-needle according to claim 1 is stabbed and syringe needle falls off, which is characterized in that the needle body lock Determining structure includes inverse tying plate and hook block, and the inverse tying plate is vertically set in the needle tubing accommodating cavity, the root of the inverse tying plate Portion is fixed on the needle tubing accommodating cavity wall, and the front end of the inverse tying plate is in hook, and the hook block is symmetricly set on described Needle tubing accommodating cavity is open on the side wall of two sides, and the opposing sidewalls of the two hook blocks are in the arc-shaped of indent, between two hook blocks Gap matches with the outer diameter at the top of the needle stand.
- The syringe that 3. a kind of anti-needle according to claim 1 is stabbed and syringe needle falls off, which is characterized in that needle cap is adopted It is made of medical plastic material.
- The syringe that 4. a kind of anti-needle according to claim 1 is stabbed and syringe needle falls off, which is characterized in that the syringe Outer surface is equipped with graduation mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821280622.4U CN209316712U (en) | 2018-08-09 | 2018-08-09 | The syringe that a kind of anti-needle is stabbed and syringe needle falls off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821280622.4U CN209316712U (en) | 2018-08-09 | 2018-08-09 | The syringe that a kind of anti-needle is stabbed and syringe needle falls off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209316712U true CN209316712U (en) | 2019-08-30 |
Family
ID=67705873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821280622.4U Active CN209316712U (en) | 2018-08-09 | 2018-08-09 | The syringe that a kind of anti-needle is stabbed and syringe needle falls off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209316712U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022232978A1 (en) * | 2021-05-06 | 2022-11-10 | 上海金塔医用器材有限公司 | Needlestick prevention syringe |
-
2018
- 2018-08-09 CN CN201821280622.4U patent/CN209316712U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022232978A1 (en) * | 2021-05-06 | 2022-11-10 | 上海金塔医用器材有限公司 | Needlestick prevention syringe |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |