CN217219017U - Needle cap external-ejection type blood taking needle - Google Patents
Needle cap external-ejection type blood taking needle Download PDFInfo
- Publication number
- CN217219017U CN217219017U CN202220498335.0U CN202220498335U CN217219017U CN 217219017 U CN217219017 U CN 217219017U CN 202220498335 U CN202220498335 U CN 202220498335U CN 217219017 U CN217219017 U CN 217219017U
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- CN
- China
- Prior art keywords
- installation shell
- needle
- blood taking
- spring
- taking needle
- 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
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- 239000008280 blood Substances 0.000 title claims abstract description 41
- 210000004369 blood Anatomy 0.000 title claims abstract description 41
- 230000001681 protective effect Effects 0.000 claims abstract description 33
- 238000009434 installation Methods 0.000 claims abstract description 31
- 238000007789 sealing Methods 0.000 claims description 10
- 230000006978 adaptation Effects 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Images
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses an outer bullet formula blood taking needle of needle cap, including installation shell and external joint, the left side fixed mounting of installation shell has the syringe needle, and annular spout has been seted up in the left side of installation shell, and the right side inner wall fixed mounting of annular spout has first spring, and the left end fixedly connected with protective sheath of first spring, the fixed chamber has been seted up to the casing inside of installation shell, and the upper surface of installation shell is seted up and is extended to the inside slip opening in fixed chamber. This outer bullet formula blood taking needle of needle cap, through setting up protective sheath and gag lever post, take off the protection casing from the installation shell and use this blood taking needle, after this blood taking needle finishes using, the pulling pull ring drives the gag lever post and removes, make spacing tooth and tooth's socket separation on the gag lever post, and simultaneously, promote the protective sheath and pop out from annular chute through spacing slider under the effect of first spring, and rotate the protective sheath through the spacing spout of L shape, restrict the protective sheath, in order to reach the purpose of protecting the syringe needle, avoid medical personnel to be stabbed by the syringe needle.
Description
Technical Field
The utility model relates to the technical field of medical appliances, in particular to a needle cap external ejection type blood taking needle.
Background
Blood collection needles are one of medical indispensable medical appliances, which can collect blood in veins around the skin for subsequent medical work, but the existing blood collection needles have some disadvantages in use, such as: after the needle cap is taken off from the blood taking needle, the needle is easily punctured by a needle after the needle cap is sleeved back or not sleeved back by a single hand or a sharp instrument box is thrown away by the needle cap, medical workers are injured, and meanwhile, the joint connection infusion tube can be taken off when the blood taking needle is connected with the blood taking tube.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a needle cap plays formula blood taking needle outward to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an outer bullet formula blood taking needle of needle cap, including installation shell and external joint, the left side fixed mounting of installation shell has the syringe needle, annular chute has been seted up in the left side of installation shell, annular chute's right side inner wall fixed mounting has first spring, the left end fixedly connected with protective sheath of first spring, the fixed chamber has been seted up inside the casing of installation shell, the upper surface of installation shell is seted up and is extended to the inside slip opening of fixed chamber, slip open-ended inner wall sliding connection has the gag lever post, the fixed surface of gag lever post installs the limiting plate, the surperficial cover of gag lever post is equipped with the second spring, the upper end and the lower extreme of second spring respectively with the last fixed surface of the interior roof of fixed chamber and limiting plate be connected, the left side surface cover of installation shell is equipped with the protection casing, the right side of installation shell passes through pipeline fixedly connected with connecting block, the thread groove has been seted up on the right side of connecting block, the left side inner wall fixed mounting of thread groove has the sealing washer.
Preferably, the front and the back of the protective sleeve are both provided with a limiting sliding block, and the inner front wall and the inner rear wall of the annular sliding groove are both provided with an L-shaped limiting sliding groove matched with the limiting sliding block.
Preferably, the lower extreme of gag lever post extends to the inside of annular spout and is provided with spacing tooth, and the tooth's socket with spacing tooth looks adaptation is seted up to the upper surface of protective sheath, and the gag lever post passes through spacing tooth and tooth's socket looks joint.
Preferably, the upper end of the limiting rod is rotatably connected with a pull ring through a rotating shaft.
Preferably, the surface of the outer joint is provided with an external thread, and the outer joint is in threaded connection with the inner wall of the thread groove through the external thread.
Preferably, the mounting shell, the protective sleeve and the protective cover are all made of transparent medical plastics.
Advantageous effects
The utility model provides a needle cap plays formula blood taking needle outward possesses following beneficial effect:
1. this outer bullet formula blood taking needle of needle cap, through setting up the protective sheath, first spring, second spring and gag lever post, take off the protection casing from the installation shell and use this blood taking needle, after this blood taking needle used up, the pulling pull ring drives the gag lever post and removes, make spacing tooth and tooth's socket separation on the gag lever post, and simultaneously, promote the protective sheath and pop out from annular spout through spacing slider under the effect of first spring, and rotate the protective sheath through the spacing spout of L shape, restrict the protective sheath, make it can not be through pressing back in the annular spout, in order to reach the purpose of protecting the syringe needle, avoid medical personnel to be stabbed by the syringe needle, the security of this blood taking needle has been improved.
2. This outer bullet formula blood taking needle of needle cap through setting up connecting block, outer joint, thread groove and sealing washer, because this blood taking needle adopts threaded connection's mode with the outer joint, so make it can not take place not hard up the condition in the use, make it more firm, simultaneously, can strengthen its leakproofness behind this blood taking needle and outer joint threaded connection under the effect of sealing washer, avoid appearing the condition of leaking, improved the practicality of this blood taking needle.
Drawings
FIG. 1 is a schematic view of a front cross-sectional structure of the present invention;
FIG. 2 is a schematic view of the front section structure of the mounting shell of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;
FIG. 4 is an enlarged schematic view of the structure of FIG. 1 at B according to the present invention;
fig. 5 is a schematic view of the three-dimensional structure of the protective sheath of the present invention.
In the figure: the mounting structure comprises an installation shell 1, an outer joint 2, a needle head 3, a first spring 4, a protective sleeve 5, a limiting rod 6, a second spring 7, a protective cover 8, a connecting block 9, a sealing ring 10 and a limiting sliding groove 11L-shaped.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides an outer bullet formula blood taking needle of needle cap, including installation shell 1 and outer joint 2, the left side fixed mounting of installation shell 1 has syringe needle 3, annular spout has been seted up in the left side of installation shell 1, the right side inner wall fixed mounting of annular spout has first spring 4, first spring 4's left end fixedly connected with protective sheath 5, the front and the back of protective sheath 5 all are provided with limit slide, the L shape limit slide groove 11 with limit slide block looks adaptation is all seted up with interior back wall to the interior antetheca of annular spout, fixed chamber has been seted up to the casing inside of installation shell 1, the slip opening that extends to fixed intracavity portion is seted up to the upper surface of installation shell 1, slip open-ended inner wall sliding connection has gag lever post 6.
The lower extreme of gag lever post 6 extends to the inside of annular chute and is provided with spacing tooth, the tooth's socket with spacing tooth looks adaptation is seted up to the upper surface of protective sheath 5, gag lever post 6 is through spacing tooth and tooth's socket looks joint, the fixed surface of gag lever post 6 installs the limiting plate, the surface cover of gag lever post 6 is equipped with second spring 7, the upper end and the lower extreme of second spring 7 are connected with the last fixed surface of the interior roof of fixed cavity and limiting plate respectively, the upper end of gag lever post 6 is connected with the pull ring through the axis of rotation, the left side surface cover of installation shell 1 is equipped with protection casing 8, installation shell 1, the material of protective sheath 5 and protection casing 8 is transparent medical plastics.
Through setting up protective sheath 5, first spring 4, second spring 7 and gag lever post 6, take off protection casing 8 from installation shell 1 and use this blood taking needle, after this blood taking needle used up, the pulling pull ring drives gag lever post 6 and removes, make spacing tooth and tooth's socket separation on the gag lever post 6, and simultaneously, promote protective sheath 5 and pop out from annular chute through spacing slider under first spring 4's effect, and rotate protective sheath 5 through L shape spacing chute 11, restrict protective sheath 5, make it can not be through pressing back in the indentation annular chute, in order to reach the purpose of protecting syringe needle 3, avoid medical personnel to be stabbed by syringe needle 3, the security of this blood taking needle has been improved.
Pipeline fixedly connected with connecting block 9 is passed through on the right side of installation shell 1, the thread groove has been seted up on the right side of connecting block 9, the left side inner wall fixed mounting of thread groove has sealing washer 10, the surface of outer joint 2 is provided with the external screw thread, outer joint 2 passes through the inner wall threaded connection of external screw thread and thread groove, through setting up connecting block 9, outer joint 2, thread groove and sealing washer 10, because this blood taking needle adopts threaded connection's mode with outer joint 2, so make its can not take place not hard up condition in the use, make it more firm, simultaneously, can be behind this blood taking needle and outer joint 2 threaded connection under the effect of sealing washer 10, strengthen its leakproofness, avoid appearing the condition of leaking, the practicality of this blood taking needle has been improved.
The working principle is as follows: when the blood taking needle is used, the protective cover 8 is taken down from the mounting shell 1, after the blood taking needle is used, the pull ring is pulled to drive the limiting rod 6 to move, limiting teeth on the limiting rod 6 are separated from tooth grooves, meanwhile, the protective cover 5 is pushed to pop out from the annular chute through the limiting slide block under the action of the first spring 4, the protective cover 5 is rotated through the L-shaped limiting chute 11 to be limited, the protective cover 5 cannot be retracted into the annular chute through pressing, the purpose of protecting the needle head 3 is achieved, medical workers are prevented from being stabbed by the needle head 3, and the blood taking needle and the outer joint 2 are in threaded connection, so that the blood taking needle cannot be loosened when being used, the blood taking needle is firmer, meanwhile, the sealing performance of the blood taking needle and the outer joint 2 can be enhanced after the blood taking needle and the outer joint are in threaded connection under the action of the sealing ring 10, avoiding the leakage.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a bullet formula blood taking needle outside needle cap, is including installation shell (1) and outer joint (2), its characterized in that: the syringe needle (3) is fixedly installed on the left side of the installation shell (1), an annular chute is formed in the left side of the installation shell (1), a first spring (4) is fixedly installed on the inner wall of the right side of the annular chute, a protection sleeve (5) is fixedly connected to the left end of the first spring (4), a fixed cavity is formed in the shell of the installation shell (1), a sliding opening extending into the fixed cavity is formed in the upper surface of the installation shell (1), a limiting rod (6) is slidably connected to the inner wall of the sliding opening, a limiting plate is fixedly installed on the surface of the limiting rod (6), a second spring (7) is sleeved on the surface of the limiting rod (6), the upper end and the lower end of the second spring (7) are fixedly connected with the inner top wall of the fixed cavity and the upper surface of the limiting plate respectively, a protection cover (8) is sleeved on the left side surface of the installation shell (1), and a connecting block (9) is fixedly connected to the right side of the installation shell (1) through a pipeline, the right side of the connecting block (9) is provided with a thread groove, and the inner wall of the left side of the thread groove is fixedly provided with a sealing ring (10).
2. The needle cap pop-out lancet of claim 1, wherein: the front and the back of the protective sleeve (5) are both provided with a limiting slide block, and the inner front wall and the inner rear wall of the annular slide groove are both provided with an L-shaped limiting slide groove (11) matched with the limiting slide block.
3. The needle cap outward-ejection type blood taking needle according to claim 1, characterized in that: the lower extreme of gag lever post (6) extends to the inside of annular spout and is provided with spacing tooth, and the tooth's socket with spacing tooth looks adaptation is seted up to the upper surface of protective sheath (5), and gag lever post (6) is through spacing tooth and tooth's socket looks joint.
4. The needle cap outward-ejection type blood taking needle according to claim 1, characterized in that: the upper end of the limiting rod (6) is rotatably connected with a pull ring through a rotating shaft.
5. The needle cap pop-out lancet of claim 1, wherein: the surface of the outer joint (2) is provided with an external thread, and the outer joint (2) is connected with the inner wall thread of the thread groove through the external thread.
6. The needle cap pop-out lancet of claim 1, wherein: the mounting shell (1), the protective sleeve (5) and the protective cover (8) are all made of transparent medical plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220498335.0U CN217219017U (en) | 2022-03-09 | 2022-03-09 | Needle cap external-ejection type blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220498335.0U CN217219017U (en) | 2022-03-09 | 2022-03-09 | Needle cap external-ejection type blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217219017U true CN217219017U (en) | 2022-08-19 |
Family
ID=82840599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220498335.0U Expired - Fee Related CN217219017U (en) | 2022-03-09 | 2022-03-09 | Needle cap external-ejection type blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217219017U (en) |
-
2022
- 2022-03-09 CN CN202220498335.0U patent/CN217219017U/en not_active Expired - Fee Related
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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: 20220819 |