CN214807479U - Needle protection structure, needle device, transfusion needle, blood taking needle and injection needle - Google Patents
Needle protection structure, needle device, transfusion needle, blood taking needle and injection needle Download PDFInfo
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- CN214807479U CN214807479U CN202022986808.5U CN202022986808U CN214807479U CN 214807479 U CN214807479 U CN 214807479U CN 202022986808 U CN202022986808 U CN 202022986808U CN 214807479 U CN214807479 U CN 214807479U
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- needle
- protective cover
- protection structure
- tube
- seat
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Abstract
The utility model relates to the field of medical equipment, a needle protection structure, needle device, transfusion needle, blood taking needle and syringe needle are specifically disclosed. The needle protection structure comprises a needle base and a protective cover, wherein a needle tube is arranged on the needle base, and one end of the protective cover is rotatably and movably connected with the needle base; the protective cover is provided with a containing groove, and an elastic blocking piece is arranged in the containing groove; a pre-tightening component is also arranged between the needle seat and the protective cover; the protective cover has at least the following two position states relative to the needle base: in the first position state, the protective cover is separated from the needle tube, and the protective cover is locked with the needle seat through the pre-tightening assembly; in the second position state, the pre-tightening assembly is unlocked, the sharp-pointed end of the needle tube is arranged in the accommodating groove, and the needle tube is positioned on the inner side of the elastic separation blade. The needle protection structure can be used for accommodating the sharp-pricked part of the needle tube after the needle is used, so that the sharp-pricked end of the needle tube is prevented from being exposed to the outside, secondary injury and cross infection are avoided, and a patient and medical staff are protected.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a needle protection architecture and needle device.
Background
Various needle devices are the most common disposable consumables used in medical institutions and the most common needle devices are used, and after the traditional needle devices are used, the needle heads are usually exposed outside, so that accidental needle stick injuries and environmental pollution are easily caused. The puncture wound and the cross infection caused by the puncture wound are safety and health problems which afflict medical staff for a long time, and the puncture tip of the contaminated needle tube is exposed outside after the use, so that the secondary injury and the cross infection are easily caused. There is therefore a need to design a needle device that is more safe and minimizes the risk of secondary injury and cross-infection.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a needle protection architecture and needle device, after the needle uses, accomodate the spine portion of needle tubing, avoid the needle tubing spine end to expose outside, cause secondary injury and cross infection, protection patient and medical personnel.
In order to solve the technical problem, the utility model provides a technical scheme as follows: the needle base is provided with a needle tube; one end of the protective cover is rotatably and movably connected with the needle seat, and the protective cover is arranged in a way of being vertical to the length direction of the needle seat relative to the rotating center of the needle seat; the protective cover is provided with a containing groove, and an elastic blocking piece is arranged in the containing groove; a pre-tightening component is also arranged between the needle seat and the protective cover;
the protective cover has at least the following two position states relative to the needle base:
in the first position state, the protective cover is separated from the needle tube, and the protective cover is locked with the needle seat through the pre-tightening assembly;
in the second position state, the pre-tightening assembly is unlocked, the sharp-pointed end of the needle tube is arranged in the accommodating groove, and the needle tube is positioned on the inner side of the elastic separation blade.
The first position state is a needle use state, the protective cover is separated from the needle tube at the moment, and the protective cover is locked with the needle base through the pre-tightening assembly, so that the interference of the protective cover on the normal use of the needle is reduced. The second position is a needle protection state, and the sharp-pointed end of the needle tube is arranged in the containing groove at the moment, so that the injury of personnel caused by the exposure of the sharp-pointed end is avoided. The elastic separation blade can restrain the sharp-pointed end of the needle tube, so that the protective cover is effectively prevented from being separated from the needle seat, and the sharp-pointed end of the needle tube is prevented from being exposed again.
Adopt above-mentioned needle protection architecture, when not influencing needle normal use, after the needle uses, can accomodate the spine portion of needle tubing, avoid the needle tube spine end to expose outside, cause secondary damage and cross infection, protection patient and medical personnel.
In the process that the protective cover moves from the first position state to the second position state relative to the needle base, the needle tube can be contacted with the elastic blocking piece and presses the elastic piece to deform, and finally the needle tube enters the accommodating groove. After the needle tube enters the containing groove, the elastic blocking piece resets and blocks the needle tube in the containing groove to prevent the needle tube from withdrawing from the containing groove.
Because the needle seat and the protective cover are usually made of non-metal materials with certain elasticity, if external force is applied to force the protective cover to deform after the needle tube enters the containing groove, the puncture end of the needle tube still has the possibility of being exposed. The opening of the containing groove is provided with an elastic blocking sheet which plays a certain blocking role for the movement of the protective cover relative to the needle tube, and the needle tube is tried to be exposed in a mode of forcibly deforming the protective cover through external force and can be blocked by the elastic blocking sheet. Under the condition of the same external force, the deformation of the protective cover is reduced, and meanwhile, the needle tube can deform in the same direction with the protective cover to a certain extent under the action of the elastic blocking piece, so that the difficulty of forcing the puncture end of the needle tube to be exposed by deforming the protective cover is increased.
Preferably, the needle seat and the protective cover are connected through a rotating shaft, or connected through a film-shaped connecting part and integrally formed.
Preferably, the pre-tightening assembly comprises a pre-tightening clamping arm arranged on the protective cover or the needle base, and the protective cover is clamped and locked with the needle base through the pre-tightening clamping arm in the first position state.
Preferably, the pre-tightening clamping arm is arranged at the free end of the protective cover or at one end of the needle base far away from the needle tube.
Preferably, the number of the pre-tightening clamping arms is two, and the pre-tightening clamping arms are oppositely arranged on two sides of the protective cover/the needle seat; in the first position state, the two pre-tightening clamping arms clamp the needle base/the protective cover together from two sides.
Preferably, at least one of the pre-fastening clamping arms is provided with a protrusion on the inner side, and the needle seat/the protection seat is provided with a groove matched with the protrusion.
A needle device comprising a needle protection arrangement as described above.
An infusion needle comprises the needle protection structure.
A lancet comprising a needle protection structure as described above.
An injection needle comprising a needle protection arrangement as described above.
Drawings
FIG. 1 is a schematic structural view of a first type of needle protection structure in a first position;
FIG. 2 is a schematic structural view of the first type of the needle protection structure of this embodiment from another perspective in the first position;
FIG. 3 is a schematic structural view of a first form of the needle protection structure of this embodiment in a second position;
FIG. 4 is a schematic structural view of the first form of the needle protection structure of this embodiment from another perspective in a second position;
FIG. 5 is a schematic structural view of a second form of the needle protection structure of the present embodiment in a first position;
FIG. 6 is a structural diagram of the second type of the needle protection structure in the present embodiment in the first position from another perspective;
FIG. 7 is a schematic structural view of a second form of the needle protection structure of this embodiment in a second position;
FIG. 8 is a structural diagram of the second type of the needle protection structure in the present embodiment in a second position from another perspective;
FIG. 9 is a schematic structural view of a third form of the needle protection structure of this embodiment in a first position;
FIG. 10 is a schematic structural view of a third form of the needle protection structure of this embodiment in a second position;
FIG. 11 is a schematic structural view of a fourth mode of the needle protection structure in accordance with the present embodiment in a first position;
fig. 12 is a schematic structural view of a fourth form of the needle protection structure of the present embodiment in a second position.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples
As shown in fig. 1-12, a needle protection structure comprises a needle base 1 and a protection cover 3, wherein a needle tube 2 is arranged on the needle base 1, a part of the needle tube 2 is inserted along the length direction of the needle base 1, and two sides of the needle base 1 are respectively provided with a butterfly wing 11. As shown in fig. 1 and fig. 2, a containing groove 31 is provided on the protective cover 3, one end of the protective cover 3 is rotatably and movably connected with the needle holder 1, and the rotational center of the protective cover 3 relative to the needle holder 1 is perpendicular to the length direction of the needle holder 1. Specifically, the needle holder 1 and the protective cover 3 may be connected through a rotating shaft as shown in fig. 11 and 12, or may be connected through a film-shaped connecting portion as shown in fig. 1 to 10 and integrally formed, wherein the connecting form of the film-shaped connecting portion may reduce the production cost, and is suitable for needle devices generally made of non-metal materials.
The needle tube 2 may be a curved needle as shown in fig. 1-4 or a straight needle as shown in fig. 5-12. The rotation angle range of the protective cover 3 relative to the needle base 1 is different when the needle type is different.
As shown in fig. 1 and 2, a pre-tightening assembly 5 and a locking needle assembly 4 are further disposed between the needle holder 1 and the protective cover 3, the pre-tightening assembly 5 fixes the protective cover 3 when the needle is used, and the locking needle assembly 4 locks the relative position between the protective cover 3 and the needle holder 1 when the needle is protected.
The protective cover 3 has at least the following two position states relative to the needle seat 1, wherein the first position state is a needle using state, and the second position state is a needle protecting state.
In the first position, the needle locking component 4 is separated, the protective cover 3 is separated from the needle tube 2, and the protective cover 3 is locked with the needle base 1 through the pre-tightening component 5.
When the needle tube 2 is a curved needle, as shown in fig. 1 and 2, in the first position, the opening direction of the containing groove 31 is preferably set away from the bending direction of the needle tube 2, so that a larger space can be reserved for the use of the needle.
In the second position, the pre-tightening component 5 is unlocked, the sharp-pointed end of the needle tube 2 is arranged in the accommodating groove 31, and the protective cover 3 is locked with the needle seat 1 through the locking needle component 4. Can avoid the exposing of the sharp-pricked end to hurt the personnel, and effectively avoid the separation of the protective cover 3 and the needle base 1, and prevent the sharp-pricked end of the needle tube 2 from being exposed again. In the second position, the cap may cover the needle cannula partially as shown in FIG. 12, only the sharpened tip, or the entire needle cannula as shown in FIGS. 3 and 4.
Lock needle subassembly 4 including setting up lock needle joint arm 42 on protective cover 3, needle file 1 on be equipped with draw-in groove 41 that corresponds with lock needle joint arm 42. In the second position, the protective cover 3 and the needle base 1 are locked by the needle locking clamping arm 42 and the clamping groove 41.
As shown in fig. 1-4, when the connection point of the protecting cover 3 and the needle holder 1 is located at the end of the needle holder 1, the locking needle latch arm 42 is disposed at the connection end of the protecting cover 3, and the corresponding latch 41 is also disposed at the end of the needle holder 1 corresponding to the needle tube 2. As shown in fig. 11 and 12, when the connection point of the protecting cover 3 and the needle holder 1 is located at the middle portion of the needle holder 1, the needle locking arm 42 is preferably disposed at the middle portion of the protecting cover 3, and the position of the locking groove 41 is determined to smoothly cooperate with the needle locking arm 42 in the second position state.
It should be noted that the latch arm 42 may also be disposed on the needle holder 1, and at this time, the corresponding latch 41 is disposed on the protection cover 3.
The pre-tightening assembly 5 comprises a pre-tightening clamping arm 52 arranged on the protective cover 3 or the needle base 1, and in the first position state, the protective cover 3 is clamped and locked with the needle base 1 through the pre-tightening clamping arm 52.
The setting of the pretensioning assembly 5 at least comprises the following two specific embodiments:
in a first embodiment, as shown in fig. 9 and 10, the pre-tensioned latch arm 52 is disposed at the free end of the protective cap 3 or at the end of the hub 1 remote from the barrel 2.
In a second embodiment, as shown in fig. 1 to 8, the number of the pre-tightening latch arms 52 is two, and the two pre-tightening latch arms are arranged opposite to each other on both sides of the protective cover 3; in the first position, the two pre-tightening latch arms 52 jointly clamp the needle holder 1 from both sides. At least one of the pre-fastened clamping arms 52 is provided with a protrusion 521 on the inner side, and the hub 1 is provided with a groove 51 matched with the protrusion 521.
It should be noted that the pre-tightening latch arm 52 may be disposed on the protecting cover 3, or may be disposed on the needle holder 1, as long as the locking between the protecting cover 3 and the needle holder 1 can be achieved in the first position state.
Adopt above-mentioned needle protection architecture, when not influencing needle normal use, after the needle uses, can accomodate the spine portion of needle tubing 2, avoid 2 spine ends of needle tubing to expose outside, cause secondary damage and cross infection, protection patient and medical personnel.
Further, as shown in fig. 1 to 4, an elastic blocking piece 32 is disposed at the opening of the containing slot 31, and in the second position state, the needle tube 2 is located in the elastic blocking piece 32. The elastic blocking piece 32 inclines towards the bottom of the containing groove 31.
In the process that the protecting cover 3 moves from the first position state to the second position state relative to the needle base 1, the needle tube 2 contacts with the elastic blocking piece 32 and presses the elastic piece to deform, and finally enters the containing groove 31. After the needle tube 2 enters the containing groove 31, the elastic blocking piece 32 is reset, and blocks the needle tube 2 in the containing groove 31, so as to prevent the needle tube 2 from withdrawing from the containing groove 31.
Since the needle holder 1 and the protecting cover 3 are usually made of non-metal materials with certain elasticity, if an external force is applied to force the protecting cover 3 to deform after the needle tube 2 enters the containing groove 31, the sharp end of the needle tube 2 still has the possibility of being exposed. The elastic stopper 32 is disposed at the opening of the containing groove 31, and acts as a certain stop for the movement of the protective cover 3 relative to the needle tube 2, and the needle tube 2 is exposed in a manner of forcibly deforming the protective cover 3 by an external force, which is hindered by the elastic stopper 32. Under the same external force condition, the deformation amount of the protective cover 3 is reduced, and meanwhile, the needle tube 2 can deform in the same direction as the protective cover 3 to a certain extent under the action of the elastic blocking piece 32, so that the difficulty of forcing the sharp pricked end of the needle tube 2 to be exposed by deforming the protective cover 3 is increased.
A needle protection method using the needle protection structure as described above;
when the needle is used, the protective cover 3 is in a first position state relative to the needle base 1; at the moment, the protective cover 3 is separated from the needle tube 2, and the protective cover 3 is locked with the needle seat 1 through the pre-tightening component 5.
After the needle is used, the pre-tightening component 5 is driven to unlock, and the protective cover 3 is rotated; the protective cover 3 gradually covers the sharp pointed end of the needle tube 2 until the protective cover 3 and the needle base 1 are locked by the needle locking component 4.
The flexible barrier 32 contacts the needle cannula 2 during rotation of the protective cap 3 relative to the hub 1 and progressively covers the sharpened end of the needle cannula 2. The elastic stopper 32 is deformed in the direction of the bottom of the accommodating groove 31 by the pressing of the needle tube 2. Until the protective cap 3 completely protects the sharp end of the needle tube 2, the elastic stop piece 32 is reset and stops the needle tube 2 inside.
A needle device comprising a needle protection arrangement as described above.
An infusion needle comprises the needle protection structure.
A lancet comprising a needle protection structure as described above.
An injection needle comprising a needle protection arrangement as described above.
In summary, the above description is only a preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.
Claims (10)
1. A needle protection structure characterized by: the needle base is provided with a needle tube; one end of the protective cover is rotatably and movably connected with the needle seat, and the protective cover is arranged in a way of being vertical to the length direction of the needle seat relative to the rotating center of the needle seat; the protective cover is provided with a containing groove, and an elastic blocking piece is arranged in the containing groove; a pre-tightening component is also arranged between the needle seat and the protective cover;
the protective cover has at least the following two position states relative to the needle base:
in the first position state, the protective cover is separated from the needle tube, and the protective cover is locked with the needle seat through the pre-tightening assembly;
in the second position state, the pre-tightening assembly is unlocked, the sharp-pointed end of the needle tube is arranged in the accommodating groove, and the needle tube is positioned on the inner side of the elastic separation blade.
2. The needle protection structure according to claim 1, wherein: the needle seat and the protective cover are connected through a rotating shaft or connected through a film-shaped connecting part and integrally formed.
3. The needle protection structure according to claim 1 or 2, characterized in that: the pretension subassembly including set up the pretension joint arm on protecting cover or needle file, under the first position state, the visor through pretension joint arm and needle file joint locking.
4. The needle protection structure according to claim 3, wherein: the pre-tightening clamping arm is arranged at the free end of the protective cover or at one end of the needle base far away from the needle tube.
5. The needle protection structure according to claim 3, wherein: the number of the pre-tightening clamping arms is two, and the pre-tightening clamping arms are oppositely arranged on two sides of the protective cover/the needle seat; in the first position state, the two pre-tightening clamping arms clamp the needle base/the protective cover together from two sides.
6. The needle protection structure according to claim 5, wherein: at least one of the pre-tightening clamping arms is provided with a bulge on the inner side, and the needle seat/the protection seat is provided with a groove matched with the bulge.
7. A needle device characterized by: comprising a needle protection structure according to any one of claims 1-6.
8. An infusion needle, which is characterized in that: comprising a needle protection structure according to any one of claims 1-6.
9. A blood collection needle, characterized in that: comprising a needle protection structure according to any one of claims 1-6.
10. An injection needle characterized by: comprising a needle protection structure according to any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022986808.5U CN214807479U (en) | 2020-12-14 | 2020-12-14 | Needle protection structure, needle device, transfusion needle, blood taking needle and injection needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022986808.5U CN214807479U (en) | 2020-12-14 | 2020-12-14 | Needle protection structure, needle device, transfusion needle, blood taking needle and injection needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214807479U true CN214807479U (en) | 2021-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022986808.5U Active CN214807479U (en) | 2020-12-14 | 2020-12-14 | Needle protection structure, needle device, transfusion needle, blood taking needle and injection needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214807479U (en) |
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2020
- 2020-12-14 CN CN202022986808.5U patent/CN214807479U/en active Active
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