CN209060209U - Safe insulin needle - Google Patents
Safe insulin needle Download PDFInfo
- Publication number
- CN209060209U CN209060209U CN201820205177.9U CN201820205177U CN209060209U CN 209060209 U CN209060209 U CN 209060209U CN 201820205177 U CN201820205177 U CN 201820205177U CN 209060209 U CN209060209 U CN 209060209U
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- Prior art keywords
- safety shield
- needle
- needle tubing
- wall
- needle stand
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Abstract
The utility model discloses a kind of safe insulin needles, including sheath, needle tubing, safety shield, needle stand, wherein, needle tubing is set on the central axis of needle stand, and is distributed along central axis, one assembly cavity is formed at the lower part of needle stand, the lower end of needle tubing extends in the assembly cavity, and needle tubing mounted base is formed at the top of needle stand, and the upper end of needle tubing extends upwardly to needle tubing mounted base top, the outside of needle stand is socketed with a safety shield, forms locking structure between cavity wall and the outer wall of needle stand in safety shield.Its technical effect are as follows: product overall structure is simple and practical, small volume, and fitness is compact between each component, and assembly process is also further simplified, and can disposably complete to assemble.The locking structure of product is stablized, and suitable, counter clockwise direction and axial lock can be achieved at the same time, effectively improve the safety coefficient of product.
Description
Technical field
The utility model relates to the technical field of medical instrument, specifically a kind of safe insulin needle, in particular to
Its mechanical connecting structure.
Background technique
Documents, application number: 201420663437.9, the applying date: 2014.11.10, patentee: Wenzhou City shellfish is general
Science and Technology Ltd., this case disclose disposable safety destructing insulin needle, are equipped with a needle in the insulin needle ontology
Seat, the needle stand is integrally cylindrical, and the needle stand inner cavity of the cylindrical shape is in hollow form, is equipped with needle tubing substrate in the cavity of needle stand, should
The inner cavity of needle stand is divided into top separate space and lower part separate space by needle tubing substrate, and the inner wall of lower part separate space punishes cloth
There is internal screw thread, a spring fixed column is equipped at the centre bit of needle tubing upper surface of base plate, the lower section of the spring fixed column is located at above-mentioned
In the separate space of top, a needle tubing is equipped at needle tubing substrate, which runs through needle tubing substrate, and one end of needle tubing, which is run through, is located at needle tubing
It is upwardly extended after the spring fixed column of substrate center position, the other end of needle tubing prolongs in separate space to the lower part after needle tubing substrate
It stretches, the both ends of needle tubing are in puncture tip shape, and the inner wall punishment of needle tubing top separate space is furnished at least a piece of elastic piece, and elastic piece exists
In angularly disposed, one end of elastic piece and the inner wall connection of syringe intracavity at the inner wall of syringe intracavity, the other end of elastic piece is outstanding
Sky, the free end are directed toward needle tubing upper surface of base plate at centre bit, a spring are socketed with outside above-mentioned spring fixed column, the bullet
Downwardly against needle tubing upper surface of base plate, the other end of spring resists safety shield upwards for one end of spring, is socketed at the upper end of needle stand
There is a safe deck, the lower end of safe deck and the upper end of needle stand are mutually socketed, and a safety protective is equipped at the upper end of safe deck
Set, safe deck is integrally cylindrical, and the inner cavity of safe deck is in hollow form, forms ring at the inner edge of safe deck upper end opening
Shape limiting section, safety shield is whole also cylindrical, and the inner cavity of safety shield is in hollow form, the outer rim of safety shield lower ending opening
Place forms the cyclic annular retention bead portion with above-mentioned cyclic annular limiting section cooperation, which is located at above-mentioned cyclic annular limiting section
In the cavity of the safe deck in lower section, the upper surface in cyclic annular retention bead portion can be downwardly against the lower end surface of cyclic annular limiting section, safety
The inner edge of the outer rim of sheath lower ending opening and safe deck upper end opening mutually limits mutual socket, and the outside of spring is socketed with one
Self-destruction wedge, self-destruction wedge is integrally cylindrical, and the inner cavity of self-destruction wedge is in hollow form, and the outer diameter in self-destruction wedge upper section portion is less than
The outer diameter in self-destruction wedge lower section portion forms ring-type limiting table rank, self-destruction wedge lower section between self-destruction wedge upper section portion and lower section portion
The outer diameter in portion is greater than the diameter of safety shield inner cavity, and the outer diameter in self-destruction wedge upper section portion is less than or equal to the straight of safety shield inner cavity
Diameter, self-destruction wedge upper section portion are located in the cavity of safety shield, and the end face of ring-type limiting table rank resists safety shield lower end upwards
End face, the cyclic annular protrusion with elastic piece cooperation, the ring-type protrusion and needle tubing are formed at the outer wall in self-destruction wedge lower section portion
Between vertical range be greater than vertical range between elastic piece free end and needle tubing, above-mentioned safety shield upper end at closed,
The closed endface offers circular hole, and the diameter of the circular hole is less than the diameter in spring upper end portion, and spring upper end resists peace upwards
The inner surface of full sheath upper surface, the endface of needle stand lower end is covered with dialyzing paper.
Although existing similar product can be realized safe self-destroying function, but due to the limitation in structure, lead to small product size
It is larger, higher cost.
Summary of the invention
The purpose of this utility model is to provide a kind of safe insulin needle, product is made of four main elements, assembly
Process and assembling structure are simple, stable working state.Small product size is small and exquisite, low in cost, realizes safety with lower cost
Function overcomes shortcoming and defect existing in the prior art.
To achieve the goals above, in the utility model embodiment, a kind of safe insulin needle is disclosed, including sheath,
Needle tubing, safety shield, needle stand, wherein needle tubing is set on the central axis of needle stand, and is distributed along central axis, the lower part shape of needle stand
At an assembly cavity, the lower end of needle tubing is extended in the assembly cavity, and needle tubing mounted base formed at the top of needle stand, the upper end of needle tubing to
On extend to needle tubing mounted base top, the outside of needle stand is socketed with a safety shield, cavity wall and needle stand in safety shield
The locking structure in solid space is formed between outer wall, the outside of safety shield is socketed with a sheath, the sheath lumen inner wall with
Anti- sidespin structure is formed between the outer wall of safety shield.
The application method of safe insulin needle, as shown in Figure 13 to Figure 32, the step of application method, is as follows:
, safe insulin needle is screwed into novopen clockwise, the internal screw thread of needle stand assembly cavity and novopen end
External screw thread cooperation will drive limited step during rotating clockwise and gradually touch and be finally engaged with plane is limited,
Safety shield is pulled out when for preventing and extract sheath；
, at this point, the salient point of safety shield and the lower salient point of needle stand are interference fitted, salient point is located at the lower section of lower salient point, use
In preventing, safety shield is non-artificial to be shifted up；
, after the completion of injection, spin safe sheath counterclockwise in place, makes end face and the limit planar separation of limited step；
, then, pull up safety shield, salient point is finally up over upper salient point, at this point, upper salient point forms salient point
Temporary reverse limit, spacing collar resist limited block upwards, for limiting to shifting up for safety shield；
, at this point, rotate clockwise safety shield, limit raised line easily passes through intermediate incline, slides into lock room；
, slide into lock room two sides be respectively formed anti-reverse platform and stopper, in the limitation of anti-reverse platform and stopper
Under effect, limit raised line can not all be rotated in Fang Shangxiang suitable, counterclockwise；
, on axis direction, the plane for limiting the lower end surface of raised line is limited platform limit, and spacing collar (34) is limited
Block limit can not be moved and complete self-locking, above-mentioned needle tubing is pacified at this point, safety shield is suitable, reverse rotation and upper and lower displacement are limited
Full sheath is fully wrapped around firmly, and safety protection function is triggered.
The utility model discloses a kind of safe insulin needle, technical effects are as follows: product overall structure is simple and practical, body
Product is smaller, and fitness is compact between each component, and assembly process is also further simplified, and can disposably complete to assemble.The locking of product
Suitable, counter clockwise direction and axial lock can be achieved at the same time in stable structure, effectively improves the safety coefficient of product.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Fig. 2 is jacket structure schematic diagram of the present invention.
Fig. 3 is the schematic diagram of the section structure of the present invention.
Fig. 4 is safety shield structural schematic diagram of the present invention.
Fig. 5 is safety shield perspective view of the present invention.
Fig. 6 is one embodiment the schematic diagram of the section structure of safety shield of the present invention.
Fig. 7 is partial enlarged view at G in Fig. 6.
Fig. 8 is that safety shield and needle stand assemble original locking status diagram.
Fig. 9 is needle stand structure schematic diagram of the present invention.
Figure 10 is partial enlarged view at H in Fig. 9.
Figure 11 is that safety shield and needle stand assemble original the first cross-sectional view of locking state.
Figure 12 is needle stand perspective view of the present invention.
Figure 13 is the first usage state diagram of the invention.
Figure 14 is the second usage state diagram of the invention.
Figure 15 is that safety shield and needle stand assemble the second cross section view of reset condition.
Figure 16 is the three-dimensional cutaway view of Figure 14.
Figure 17 is partial enlarged view at A in Figure 16.
Figure 18 is third usage state diagram of the present invention.
Figure 19 is the 4th usage state diagram of the invention.
Figure 20 is the three-dimensional cutaway view of Figure 19.
Figure 21 is partial enlarged view at B in Figure 20.
Figure 22 is the 5th usage state diagram of the invention.
Figure 23 is partial enlarged view at C in Figure 22.
Figure 24 is the process status schematic diagram for limiting raised line and passing through intermediate incline.
Figure 25 is partial enlarged view at D in Figure 24.
Figure 26 is the 6th usage state diagram of the invention.
Figure 27 is the perspective view of Figure 25.
Figure 28 is partial enlarged view at E in Figure 27.
Figure 29 is the status diagram for limiting raised line and being locked in lock room.
Figure 30 is safety shield and the final lock state partial sectional view of needle stand.
Figure 31 is partial enlarged view at F in Figure 30.
Figure 32 is safeguard protection status diagram of the present invention.
Specific embodiment
With reference to the accompanying drawings, the utility model is further described below.
As shown in fig. 1, in the utility model embodiment, a kind of safe insulin needle is disclosed, existing skill is different from
Art is: including sheath 1, needle tubing 2, safety shield 3, needle stand 4, wherein needle tubing 2 is set on the central axis of needle stand 4, and in
One assembly cavity 41 is formed at mandrel distribution, the lower part of needle stand 4, and the assembly cavity 41 for docking novopen 7, prolong by the lower end of needle tubing 2
It extends in the assembly cavity 41, needle tubing mounted base 46 is formed at the top of needle stand 4, and the upper end of needle tubing 2 extends upwardly to needle tubing assembly
46 top of pedestal, the outside of needle stand 4 are socketed with a safety shield 3, shape between cavity wall and the outer wall of needle stand 4 in safety shield 3
At locking structure, 3 end-state of safety shield can cover on the needle tubing on 4 top of needle stand in it completely, safety shield 3 and needle stand 4
Between final position it is relatively fixed, the outside of safety shield 3 is socketed with a sheath 1, cavity wall and safety shield in the sheath 1
Anti- sidespin structure is formed between 3 outer wall, safety shield 3 and needle stand and needle tubing can be covered on it in product reset condition by sheath 1
It is interior.
In the specific implementation, as shown in Figure 2, the sheath 1 is made of upper and lower part, and the inner cavity of sheath 1 is in hollow
The top of shape, sheath 1 is in circular cone shape, and the lower part of sheath 1 is cylindrical, and the lower edge diameter on 1 top of sheath is less than 1 lower part of sheath
Diameter, the junction of 1 top of sheath and lower part forms cricoid positioning step 12, is formed on the interior cavity wall of 1 lower part of sheath
Several outer ring vertical bars 11, should, the top on 1 top of sheath is in closed.
In the specific implementation, as shown in Fig. 3, Fig. 4, the safety shield 3 is made of upper and lower part, safety shield 3
Inner cavity be in hollow form, the upper and lower part of safety shield 3 is cylindrical in shape, and the diameter on 3 top of safety shield is less than safety shield 3
The junction of the diameter of lower part, 3 top of safety shield and lower diameter forms annular platform 36, the annular platform 36 with it is above-mentioned fixed
Position step 12 cooperates, and annular platform 36 resists positioning step 12 upwards, and the outer wall punishment of 3 lower part of safety shield is furnished with several protrusions
The positioning strip 32 of shape forms vacancy face 31, the vacancy face 31 and above-mentioned outer ring vertical bar at the outer wall between adjacent positioning strip 32
11 correspond cooperation, are interference fitted between vacancy face 31 and outer ring vertical bar 11, and above-mentioned several positioning strips 32 are annular in shape equidistant
It is distributed in 3 lower part outer wall surface of safety shield, when sheath 1 and safety shield 3 assemble, outer ring vertical bar 11 is axially inserted into vacancy face
31, by realizing metastable assembling structure by interference fit between the two, the top on 3 top of safety shield, which offers, is worn
Pin hole 37, the upper end of needle tubing can thread a needle from this and be pierced by from hole 37.
In the specific implementation, as shown in Figure 5, the safety shield 3 is made of upper and lower part, safety shield 3 it is interior
Chamber is in hollow form, and inner ring vertical bar 33 and at least one that several convex are distributed on the interior cavity wall of 3 lower part of safety shield are fixed
Position vertical bar 35, inner ring vertical bar 33 and positioning vertical bar 35 are annularly distributed on the interior cavity wall of 3 lower part of safety shield, wherein fixed
The amesiality formation limited step 351 in lower end of position vertical bar 35, the lower end of positioning vertical bar 35 form the cone-shaped of guide function, limit
The position convex distribution on the interior cavity wall of 3 lower part of safety shield of step 351.
In the specific implementation, as shown in Figure 6, the safety shield 3 is made of upper and lower part, safety shield 3 it is interior
Chamber is in hollow form, and the interior cavity wall on 3 top of safety shield is equipped with limit raised line 38, which is equipped with a salient point
381, it limits and forms plane 382 at the lower end surface of raised line 38, the axial direction of limit raised line 38 and safety shield 3 is in parallelly distribute on.
In the specific implementation, as shown in Figure 7, the inner wall of 3 inner cavity of safety shield is equipped with the limit of annular distribution
Circle 34, the spacing collar 34 convex setting on the inner wall of inner cavity.
In the specific implementation, as shown in Figure 8, several limit vertical bars 44 and extremely are distributed on the outer wall of the assembly cavity 41
A few positive stop strip 45, the convex distribution on the outer wall of assembly cavity 41 of the limit vertical bar 44 and positive stop strip 45 are described
Limit vertical bar 44 is matched with above-mentioned inner ring vertical bar 33, and positive stop strip 45 is matched with above-mentioned positioning vertical bar 35, under positive stop strip 45
End forms the limit plane 451 with the cooperation of above-mentioned limited step 351, and in assembly, inner ring vertical bar 33 and positioning vertical bar 35 are from limit
Gap location insertion between position vertical bar 44 and positive stop strip 45,3 sidespin of safety shield, limited step 351 are inserted into limit plane 451
Lower section, limited step 351 resist limit plane 451 upwards, realize that the locking of reset condition between safety shield 3 and needle stand fills
Match.
In the specific implementation, as shown in Fig. 9, Figure 10, formation and limit convex at the outer wall of the needle tubing mounted base 46
The slideway 6 that item 38 cooperates, which is provided with the lower salient point 51 and upper salient point 42 being distributed up and down, the side of 6 upper end of slideway
Intermediate incline 47 equipped with convex, the side of intermediate incline 47 form lock room 49, and the side of lock room forms convex
Stopper 50, lock room 49 form anti-reverse platform 471 between intermediate incline 47 and stopper 50 on the inside of intermediate incline 47,
The anti-reverse platform 471 of 49 two sides of lock room and the inner sidewall of stopper 50 are planomural, and the inner sidewall of two sides is used for limit convex
Item 38 is limited, and the lower end of lock room 49 forms limiting platform 52, and limiting platform 52 is for cooperating under above-mentioned limit raised line 38
The plane 382 at end, for limiting 3 axial displacement of safety shield, the slideway 6 is with lock room 49 in the outer of needle tubing mounted base 46
In being alternately distributed at wall, a lock room 49 is equipped between adjacent slideway 6.
In the specific implementation, as shown in figure 9, the lower edge of the lock room 49 be equipped with protrude from outside needle tubing mounted base 46
The limited block 48 of wall, the limited block 48 and above-mentioned spacing collar 34 cooperate, for stopping spacing collar 34 to shift up.
In the specific implementation, as shown in Figure 11, Figure 12, the needle stand 4 is by superposed 46 He of needle tubing mounted base
Assembly cavity 41 positioned at lower part is constituted, and the outer diameter of needle tubing mounted base 46 is less than the outer diameter of assembly cavity 41, needle tubing mounted base 46
Cricoid needle stand platform 43 is formed with the junction of assembly cavity 41, as shown in Figure 12, is formed on the interior cavity wall of assembly cavity 41
Inside spin 53.
Implementing in use, safe insulin needle is screwed into novopen 7 clockwise as shown in Figure 13 to Figure 32
End, during being somebody's turn to do, sheath 1 will drive safety shield 3 while rotate, while triggering limited step 351 and being inserted into limit plane
451 lower sections, and realize and be mutually twisted, it prevents from pulling out safety shield when extracting sheath, 4 lower part of needle stand is assembled to by helicitic texture
Assembly cavity in, be interference fitted between the salient point 381 of safety shield and lower salient point 51, salient point 381 is located at the lower section of lower salient point 51,
Lower salient point 51 prevents safety shield is non-artificial to be moved upward, duplicate protection is realized, in Figure 16 for stopping salient point 381
It is shown, after the completion of injection, spin safe sheath counterclockwise in place so that above-mentioned limited step 351 with limit plane 451 separate,
Pulling safety shield then up, salient point 381 finally crosses salient point 42, the lower section of the limited block 48 on earth of spacing collar 34, and to
On resist limited block 48, at this point, rotate clockwise safety shield, the lower section of limit raised line 38 can take advantage of a situation laterally through intermediate incline
47, and drop into above-mentioned lock room 49, under the limitation of anti-reverse platform 471 and stopper 50, limit 38 lower section of raised line is positive and negative
(suitable, counterclockwise) direction can not all rotate, and on axial direction, the plane 382 of limit 38 lower end of raised line is limited downwards platform 52
Limit, meanwhile, spacing collar 34 is limited the limit of block 48 upwards, at this point, the sidespin of safety shield and upper and lower displacement are locked by limitation
It is fixed, it completes final self-locking purpose and completes safety protection function at this point, the upper end of needle tubing is covered in safety shield completely
Starting.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the utility model specific implementation is confined to these above-mentioned explanations.For the common skill of the utility model technical field
For art personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, all should
It is considered as belonging to the protection scope of the utility model.
Claims (2)
1. safe insulin needle, it is characterised in that: including needle tubing (2), safety shield (3), needle stand (4), wherein needle tubing (2) is set
It is placed on the central axis of needle stand (4), and is distributed along central axis, an assembly cavity (41) are formed at the lower part of needle stand (4), needle tubing (2)
Lower end extends in the assembly cavity (41), and needle tubing mounted base (46) are formed at the top of needle stand (4), and the upper end of needle tubing (2) is upward
Needle tubing mounted base (46) top is extended to, the outside of needle stand (4) is socketed with a safety shield (3), intracavitary in safety shield (3)
Locking structure is formed between wall and the outer wall of needle stand (4)；
The safety shield (3) is made of upper and lower part, and the inner cavity of safety shield (3) is in hollow form, safety shield (3) lower part
Interior cavity wall at least one positioning vertical bar (35) is distributed with, wherein amesiality is formationed in lower end of positioning vertical bar (35) limits
Position step (351), limited step (351) convex distribution on the interior cavity wall of safety shield (3) lower part；
The safety shield (3) is made of upper and lower part, and the inner cavity of safety shield (3) is in hollow form, safety shield (3) top
Interior cavity wall be equipped with limit raised line (38), the limit raised line (38) be equipped with a salient point (381), limit raised line (38) under
Endface forms plane (382), and the axial direction of limit raised line (38) and safety shield (3) is in parallelly distribute on；
The inner wall of safety shield (3) inner cavity is equipped with the spacing collar (34) of annular distribution, and the spacing collar (34) is in inner cavity
Convex setting on inner wall, spacing collar (34) become technique shape or integrally formed technique machine-shaping using heat；
It is distributed at least one positive stop strip (45) on the outer wall of the assembly cavity (41), the positive stop strip (45) is in assembly cavity (41)
Outer wall on convex distribution, positive stop strip (45) matches with above-mentioned positioning vertical bar (35), the lower end shape of positive stop strip (45)
At the limit plane (451) cooperated with above-mentioned limited step (351)；
The slideway (6) with limit raised line (38) cooperation, slideway (6) surface are formed at the outer wall of the needle tubing mounted base (46)
It is provided with the lower salient point (51) and upper salient point (42) being distributed up and down, the side of slideway (6) upper end is equipped with the intermediate incline of convex
(47), the side of intermediate incline (47) forms lock room (49), and the side of lock room forms the stopper (50) of convex, locking
Area (49) is located between intermediate incline (47) and stopper (50), and anti-reverse platform (471), locking are formed on the inside of intermediate incline (47)
The anti-reverse platform (471) of area (49) two sides and the inner sidewall of stopper (50) are planomural, and the inner sidewall of two sides is used for limit
Raised line (38) is limited, and the lower end of lock room (49) forms limiting platform (52), and limiting platform (52) is for cooperating above-mentioned limit
The plane (382) of position raised line (38) lower end, the slideway (6) are at the outer wall of needle tubing mounted base (46) with lock room (49)
It is alternately distributed, is equipped with a lock room (49) between adjacent slideway (6)；
The lower edge of the lock room (49) is equipped with the limited block (48) for protruding from needle tubing mounted base (46) outer wall, the limited block
(48) cooperate with above-mentioned spacing collar (34), for stopping spacing collar (34) to shift up.
2. safe insulin needle shown according to claim 1, it is characterised in that: the needle stand (4) is by superposed needle tubing
Mounted base (46) and assembly cavity (41) positioned at lower part are constituted, and the outer diameter of needle tubing mounted base (46) is less than assembly cavity (41)
Outer diameter, needle tubing mounted base (46) and the junction of assembly cavity (41) form cricoid needle stand platform (43), assembly cavity (41)
Inside spin (53) are formed on interior cavity wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820205177.9U CN209060209U (en) | 2018-02-06 | 2018-02-06 | Safe insulin needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820205177.9U CN209060209U (en) | 2018-02-06 | 2018-02-06 | Safe insulin needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209060209U true CN209060209U (en) | 2019-07-05 |
Family
ID=67088030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820205177.9U Active CN209060209U (en) | 2018-02-06 | 2018-02-06 | Safe insulin needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209060209U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113577461A (en) * | 2021-08-10 | 2021-11-02 | 温州康洲医疗器材有限公司 | Self-aligning needle seat and use method thereof |
-
2018
- 2018-02-06 CN CN201820205177.9U patent/CN209060209U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113577461A (en) * | 2021-08-10 | 2021-11-02 | 温州康洲医疗器材有限公司 | Self-aligning needle seat and use method thereof |
| CN113577461B (en) * | 2021-08-10 | 2022-03-29 | 温州康洲医疗器材有限公司 | Self-aligning needle seat |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.14, Xingji Road, Yongxing street, Longwan District, Wenzhou City, Zhejiang Province Patentee after: Beipu Medical Technology Co.,Ltd. Address before: No.14, Xingji Road, Yongxing street, Longwan District, Wenzhou City, Zhejiang Province Patentee before: Beipu Medical Technology Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |