CN205515820U

CN205515820U - Safe insulin pen needle

Info

Publication number: CN205515820U
Application number: CN201620110705.3U
Authority: CN
Inventors: 王学博
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-02-03
Filing date: 2016-02-03
Publication date: 2016-08-31
Anticipated expiration: 2026-02-03

Abstract

The utility model discloses a safe insulin pen needle, including the needle tubing, the needle file, its outside is equipped with the stopper, inner thread is connected to the needle tubing, the sheath, it is established including the cover the portion of cup jointing and the restriction in the needle file outside needle file axial displacement's restriction portion, it is equipped with the restriction to cup joint an inboard needle file axial displacement's first dog and restriction needle file radial displacement's second dog. The utility model discloses a draw -in groove chamber that forms between inboard first dog, second dog and the restriction portion of sheath is rotatory block state or rotatory open mode with the stopper in the needle file outside, after the needle file uses rotatory block to the sheath and with the rotatory after separating of needle tubing screw thread, need not the syringe needle that hand direct contact needle file accomodate, avoided to touch the needle file, also be difficult for taking out with the needle file of sheath rotation block, avoid the used repeatedly of needle file.

Description

Safe novopen pin

Technical field

This utility model relates to technical field of medical instruments, and more specifically, this utility model relates to one Safe novopen pin.

Background technology

Insulin injection device such as novopen and entry needle as a kind of method treating diabetes, by Widely available use.Its major function is by injection device accurate infusion islets of langerhans in diabetics body Element, reaches to control the purpose of patient blood glucose.

Traditional entry needle includes needle stand, needle tubing and the protection set being set in outside needle stand, needle stand and needle tubing Be rotatably connected, remove before using protection set after, insulin injection syringe be directly exposed to outside, use rear because of It is without safety protection structure, thus is susceptible to unexpected false touch syringe needle and causes cross infection.Meanwhile, by In the safeguard structure that there is no need, this kind of entry needle is after using, it is also possible to is used again, thus deposits In the risk being reused.

Utility model content

For weak point present in above-mentioned technology, this utility model provides a kind of safe novopen pin, By the limited block outside the first block inside sheath, the second block and needle stand in rotate fastening state or Unscrew state, needle stand uses to rotate after terminating and is engaged to sheath and separates after needle tubing screw thread rotation, Directly contact needle stand without hands and carry out receiving, avoiding touching the syringe needle of needle stand, rotate, with sheath, the pin engaged Seat is not easy to take out, it is to avoid reusing of needle stand.

In order to realize according to these purposes of the present utility model and further advantage, this utility model is by following Technical scheme realizes:

Safe novopen pin described in the utility model, including: needle tubing；

Needle stand, is provided with limited block, inside thread is connected to described needle tubing outside it；

Sheath, it includes being set in the socket part outside described needle stand and limiting the axial displacement of described needle stand Limiting unit；It is provided with inside described socket part and limits the first block of the axial displacement of described needle stand and limit described Second block of needle stand radial displacement.

Preferably, described limited block includes the rectangle flushed with described needle stand near one end of described needle tubing Portion and the inversion triangular portion being connected to described rectangular portion.

Preferably, described first block be positioned at described socket part away from one end of described limiting unit and and its Axially flush.

Preferably, described limiting unit is inverted " eight " shape, and the outside symmetry of described limiting unit sets Have axial reinforcement, described reinforcement extend axially into described limiting unit away from one end of needle stand and with It flushes.

Preferably, described limited block, described first block and described second gear number of blocks are identical and equal It is one, inside described socket part, removes the radical length footpath more than described limited block of described first block To length.

Preferably, described limited block, described first block and described second gear number of blocks are identical and equal More than one, the radial distance between two described first blocks adjacent inside described socket part is more than institute State the radical length of limited block.

This utility model at least includes following beneficial effect:

1) this utility model provide safe novopen pin, by the first block inside sheath, second Limited block outside block and needle stand is in rotating fastening state or Unscrew state, and needle stand uses after terminating Rotation is engaged to sheath and separates after needle tubing screw thread rotation, it is not necessary to hands directly contact needle stand carry out receiving, Avoid touching the syringe needle of needle stand；Rotate the needle stand engaged to be not easy to take out with sheath, it is to avoid the repetition of needle stand Use；

2) limited block includes the rectangular portion flushed near one end of needle tubing with needle stand and is connected to falling of rectangular portion Put triangular portion；Rectangular portion ensure that limited block engages with the rotation of card vallecular cavity, is inverted triangular portion and saves The material of limited block；

3) the first block is positioned at socket part and away from one end of limiting unit and axially flushes with it, limited block and card After vallecular cavity rotates engaging, limited block radial displacement is limited in the inner side of sheath by the first block, prevents from passing through The limited block stretched out takes out needle stand and reuses；

4) limiting unit is inverted " eight " shape, and the outside of limiting unit is arranged with axial reinforcement, Reinforcement enhances the enabling capabilities of limiting unit；Reinforcement extends axially into limiting unit away from the one of needle stand Hold and be flush with it, enhancing the stationarity after limiting unit is placed；

5) limited block, the first block and second gear number of blocks are identical and be all one, remove inside socket part Remove the radical length radical length more than limited block of described first block, it is simple to card vallecular cavity revolves with limited block Turn limited block when opening and stretch out socket part；

6) limited block, the first block and second gear number of blocks are identical and are all higher than one, inside socket part The adjacent radial distance between two the first blocks is more than the radical length of limited block, it is simple to card vallecular cavity with During limited block Unscrew, limited block stretches out socket part.

Part is embodied by further advantage of the present utility model, target and feature by description below, part Also will be by research of the present utility model and practice be understood by the person skilled in the art.

Accompanying drawing explanation

Fig. 1 is the structural representation of safe novopen pin described in the utility model.

Detailed description of the invention

Below in conjunction with the accompanying drawings this utility model is described in further detail, to make those skilled in the art Can implement according to this with reference to description word.

Should be appreciated that used herein such as " have ", " comprising " and " including " term not Get rid of other element one or more or the existence of a combination thereof or interpolation.

This utility model provides a kind of safe novopen pin, as it is shown in figure 1, include: needle tubing 10, pin Pipe 10 built with injection medicinal liquid, i.e. insulin medicinal liquid；Needle stand 20, be provided with outside it limited block 21, Inside thread is connected to needle tubing 10, and needle stand 20 is provided with the entry needle running through it；Sheath 30, it includes set It is located at the socket part 31 outside needle stand 20 and limits the limiting unit 32 of the axial displacement of needle stand 20；Socket part It is provided with inside 31 and limits the first block 311 of the axial displacement of needle stand 20 and limit needle stand 20 radial displacement Second block 312.

The card vallecular cavity formed between first block the 311, second block 312 and limiting unit 32 and limited block 21 in rotating fastening state or Unscrew state.Before injection, needle stand 20 is rotated even by inside thread Receiving needle tubing 10, the limited block 21 of needle stand 20 turns clockwise around sheath 20, until limited block 21 takes off From the card vallecular cavity formed between first block the 311, second block 312 and limiting unit 32 so that needle stand 20 depart from sheath 30, and the needle stand 20 being rotatably connected with needle tubing 10 can realize injection.Inject complete, needle stand The limited block 21 of 20 rotates counterclockwise around sheath 20, until limited block 21 and the first block 311, second The card vallecular cavity engaging formed between block 312 and limiting unit 32 so that needle stand 20 engages with sheath 30 Fixing, rotate needle tubing 10 and make needle tubing 10 depart from needle stand 20, the needle stand 20 engaged with sheath 30 is received Process.

The safe novopen pin that this utility model provides, the storage process of needle stand 20 need not hands and directly connects Stylus holder 20, it is to avoid the entry needle of touching needle stand 20.It addition, rotate, with sheath 30, the needle stand 20 engaged It is not easy to take out, it is to avoid reusing of needle stand 20.

In above-mentioned embodiment, the distance between the second block 312 and the first block 311 is less than limited block 21 axial width, it is ensured that the second block 312 and the first block 311 limit limited block 21 position radially Move.Preferred as present embodiment, the second block 312 is fixedly attached to the first block 311.Second Block 312 both may be fixedly attached in the middle of the radial direction of the first block 311, it is also possible to is fixed to first gear One end of block 311, as preferably, the second block 312 is fixedly attached to one end of the first block 311, It is easy to limited block 21 engages firm with forming bigger card vallecular cavity between limiting unit 32, the most do not waste first The material of block 311.

As another embodiment of the present utility model, limited block 21 includes with needle stand 20 near needle tubing The rectangular portion 211 that one end of 10 flushes and the inversion triangular portion 212 being connected to rectangular portion 211.Rectangle Portion 211 ensure that limited block 21 engages with the rotation of card vallecular cavity, is inverted triangular portion 212 and saves spacing The material of block 21.

As another embodiment of the present utility model, the first block 311 is positioned at socket part 31 away from limit The one end in portion 32 processed and axially flushing with it.Limited block 21 radial displacement is limited in by the first block 311 The inner side of sheath 30, prevents the limited block 21 by stretching out from taking out needle stand 20 and reuses.

As another embodiment of the present utility model, limiting unit 32, in inverted " eight " shape, limits The outside in portion 32 processed is arranged with axial reinforcement 321, and reinforcement 321 enhances limiting unit 32 Enabling capabilities；Reinforcement 321 extends axially into limiting unit 32 and away from one end of needle stand and is flush with it, Enhance the stationarity after limiting unit 32 is placed.Reinforcement 321 is symmetrically arranged at limiting unit at least two Outside 32, as the optimal way of present embodiment, the outside of limiting unit 32 is arranged with axial four Individual reinforcement 321, four reinforcements have preferable supporting role and stationarity through 321 pairs of limiting units 32.

As another embodiment of the present utility model, limited block the 21, first block 311 and second Block 312 quantity is identical and be all one, removes the radical length of the first block 311 inside socket part 31 Radical length more than limited block 21, it is simple to when card vallecular cavity and limited block 21 Unscrew, limited block 21 is stretched Go out socket part 31.

As another embodiment of the present utility model, limited block the 21, first block 311 and second Block 312 quantity is identical and is all higher than one, two the first blocks 311 adjacent inside socket part 31 it Between radial distance more than the radical length of limited block 21, it is simple to card vallecular cavity and limited block 21 Unscrew Time limited block 21 stretch out socket part 31.As the optimum embodiment of present embodiment, limited block 21, First block 311 and the second block 312 quantity are identical and be three, and three limited blocks 21 uniformly divide Cloth is outside needle stand 20, and three the first blocks 311 and three the second blocks 312 are evenly distributed on sheath Inside the socket part 31 of 30,311, three the second blocks 312 of three the first blocks and limiting unit 32 shape Becoming three limit chambers to engage with three limited block 21 corresponding rotation respectively, engaging is firmly.

Although embodiment of the present utility model is disclosed as above, but it is not restricted to description and reality Execute listed in mode utilization.It can be applied to various applicable field of the present utility model completely.For Other amendment it is easily achieved for those skilled in the art.Therefore without departing substantially from claim and Under the general concept that equivalency range is limited, this utility model be not limited to specific details and shown here as With the legend described.

Claims

1. a safe novopen pin, it is characterised in that including:

Needle tubing；

Safe novopen pin the most as claimed in claim 1, it is characterised in that described limited block bag Include the rectangular portion flushed near one end of described needle tubing with described needle stand and be connected to the inversion of described rectangular portion Triangular portion.

Safe novopen pin the most as claimed in claim 1, it is characterised in that described first block It is positioned at described socket part away from one end of described limiting unit and axially to flush with it.

Safe novopen pin the most as claimed in claim 1, it is characterised in that described limiting unit in Inverted " eight " shape, the outside of described limiting unit is arranged with axial reinforcement, described reinforcement Extend axially into described limiting unit away from one end of needle stand and to be flush with it.

5. the safe novopen pin as according to any one of claim 1-4, it is characterised in that institute State limited block, described first block and described second gear number of blocks identical and be all one, described socket The radical length radical length more than described limited block of described first block is removed inside portion.

6. the safe novopen pin as according to any one of claim 1-4, it is characterised in that institute State limited block, described first block and described second gear number of blocks identical and be all higher than one, described set Connect the radial distance between described first block of adjacent inside portion two long more than the radial direction of described limited block Degree.