CN103877649A

CN103877649A - Injector

Info

Publication number: CN103877649A
Application number: CN201410146768.XA
Authority: CN
Inventors: 刘红梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-04-14
Filing date: 2014-04-14
Publication date: 2014-06-25
Anticipated expiration: 2034-04-14
Also published as: CN103877649B

Abstract

An injector comprises a needle cylinder and a needle core. A baffle wall is arranged at the opened end of the needle cylinder. Rib strips are distributed on the needle core in a circumferential array mode. A protection component is arranged on the rib strips in a pluggable mode, and comprises a front baffle, a sleeve and a rear baffle. Each rib strip is provided with a groove. A pluggable block is arranged inside each groove. The pluggable blocks are fixedly connected to the sleeve. The front baffle is fixedly connected with the sleeve. The rear baffle is connected with the needle core. The injector is simple in structure, convenient to operate and capable of completely preventing an operator from making direct contact with the needle core, and the safety of the injector is improved.

Description

A kind of syringe

Technical field

The present invention relates to medical apparatus and instruments articles for use, especially for the syringe of clinical patient injection.

Background technology

Hospital internal rule of operation clearly specifies now, and in order to prevent cross infection, in using syringe, operator's hands can not touch on push rod can be inserted into the part in syringe.So operator particularly need to note posture and the crawl position of hand when in use in syringe extracting liquid very much, cause the inconvenience of use.

As a kind of syringe of patent No. CN200920064626.3, comprise needle tubing and nook closing member, described needle tubing afterbody has a film bag that prevents that nook closing member from exposing.Increase after a plastic film bag at the afterbody of original syringe needle tube, make nook closing member in film bag all the time in sealing state, reduced the probability that injection is infected by antibacterial.But because operator is in the time using some larger needle tubings to overexert, plastic film bag is just scratched, and easily causes antibacterial to infect.

Summary of the invention

Object of the present invention, is to solve the problems of the technologies described above, and provides a kind of operator of preventing hand in the time of operation to touch the syringe on nook closing member surface.

Technical solution of the present invention is: a kind of syringe, comprise syringe and nook closing member, syringe opening arranges retaining wall, circumference array distribution rib on described nook closing member, on described rib, peg graft a guard block is set, described guard block comprises front apron, sleeve and backboard; On described each rib, offer groove, in each groove, correspondence arranges a grafting piece, and all grafting pieces are all fixedly attached on sleeve; Described front apron is fixedly connected with sleeve, and described backboard is connected with nook closing member.

On rib, carrying out branch sleeve by grafting piece, is that operator's hands can prevent from carrying out injection operation on sleeve and can not encounter nook closing member, causes cross infection.Front apron is followed sleeve and is moved together, because the diameter of front apron is greater than the internal diameter of syringe, can prevent that sleeve is inserted in syringe.Backboard is connected with nook closing member, can prevent that sleeve from departing from nook closing member.And backboard combines together with front apron, can limit again the contact position of operator's hands.General operation person, in injection, clamps nook closing member with forefinger and the third finger.In this device, just finger can be put between front apron and backboard, can allow finger have the place by means of power, avoid at withdrawing or in pushing nook closing member, the position that finger does not stop, prevents the situations such as hands is sliding.

As preferably, described backboard is being the horn-like setting of radiation towards the contrary direction of front apron.When operator operates nook closing member, except clamping sleeve with forefinger and middle finger, also need to pin backboard with thumb.So it is horn-like that backboard is arranged to radiate, the one, be conducive to concentrating of power, the 2nd, prevent the slip of thumb.

As preferably, on the retaining wall of described syringe, be provided for inserting the groove of front apron.When movement of slide is to range, front apron can be inserted in groove, and the cavity in syringe just forms the closed environment of waterproof like this, prevents entering of air or other foreign material.

As preferably, in described groove, sealing gasket is set.Impulsive contact force while contact with groove in order to reduce front apron, prevents the accuracy because of the excessive also impact of impulsive contact force injection, so be provided with sealing gasket.

As preferably, the outer surface of described sleeve arranges inner fovea part.Because forefinger and middle finger are clipped on sleeve, so being set, depressed part prevents from skidding, increase work efficiency.

As preferably, between described retaining wall and front apron, guide rod is set.The guide rod is here except the effect of guiding, and topmost effect is to prevent that hand from touching on nook closing member, plays shielding action.

As preferably, dish ear is set on described front apron, the dish ear groove corresponding with dish ear is also set in the groove of described retaining wall, described guide rod one end is connected in dish ear groove, and the other end is through dish ear; Described guide rod is provided for limiting the limited block of front apron motion range through one end of dish ear.Guide rod one is the guide effect of front apron dish ear of can leading, and is also the rotation that can prevent nook closing member.Define the position of dish ear with hour indicator ear groove, also just define the movement locus of front apron.

As further preferably, on described guide rod, be provided for limiting the scraping blade of the front apron direction of motion.Now on market a lot of syringes be all designed to type self-destroyed, namely can only expendable product, exactly in order to prevent cross infection.

As further preferred, described scraping blade is flexible glue and is obliquely installed, and its one end is fixedly connected with guide rod; The incline direction of described scraping blade is to tilt to syringe direction.

As preferred again, the position of described scraping blade is arranged near groove one side.

Beneficial effect of the present invention is:

On nook closing member, design a sleeve as the support zone of support operation person's practical operation, and fix the space that the position of sleeve contacts with hand by forward and backward baffle plate, avoided operator directly to touch nook closing member, thereby brought cross infection.

Guide rod parts of this product design, have strengthened the protection to nook closing member, and on guide rod, design scraping blade, and that can effectively realize syringe can only expendable function, have avoided reusing and the potential safety hazard brought.

This product structure is simple, easy to operate, can avoid completely operator directly to touch nook closing member, and improve the safety of syringe.

Brief description of the drawings

Fig. 1 is embodiment of the present invention structural representation;

Fig. 2 is embodiment of the present invention texture edge partial sectional view;

Fig. 3 is the cutaway view of the A-A of Fig. 2;

Fig. 4 is the structural representation increasing after guide rod;

Fig. 5 is the top view of Fig. 4;

Fig. 6 is that nook closing member is inserted into the structural representation in syringe.

In figure: 1-syringe, 11-retaining wall, 12-groove, 13-sealing gasket, 14-dish ear groove, 2-nook closing member, 21-rib; 22-groove, 3-guard block, 31-front apron, 311-coils ear,, 32-sleeve; 33-backboard, 34-grafting piece, 35-inner fovea part, 4-guide rod, 41-limited block, 42-scraping blade.

Detailed description of the invention

Below in conjunction with accompanying drawing, with embodiment, the invention will be further described.

This specific embodiment is only explanation of the invention; it is not limitation of the present invention; those skilled in the art are reading after this description and can make to the present embodiment the amendment that there is no creative contribution as required, but as long as within the scope of claim of the present invention, are all subject to the protection of Patent Law.

Embodiment 1, as Figure 1-3, a kind of syringe, comprise syringe 1 and nook closing member 2, syringe 1 opening arranges retaining wall 11, circumference array distribution rib 21 on described nook closing member 2, on described rib 21, peg graft a guard block 3 is set, described guard block 3 comprises front apron 31, sleeve 32 and backboard 33; The diameter of front apron 31 is greater than the internal diameter of syringe, preferably large 5mm ~ 8mm.The outer surface of described sleeve 32 arranges inner fovea part 35.The diameter of backboard 33 is less than the diameter of front apron 31.On described each rib 21, offer groove 22, in each groove 22, correspondence arranges a grafting piece 34, the groove 22 here arranges to both sides prolongation stretching, extension as Fig. 3 can see the bottom of groove 22, and the piece 34 of pegging graft is accordingly also same shape, and the piece 34 that so just can prevent from pegging graft is from above-below direction releasing slots 22.All grafting pieces 34 are all fixedly attached on sleeve 32; Described front apron 31 is fixedly connected with sleeve 32, and described backboard is connected with nook closing member 2.Backboard 33 is connected with nook closing member, can prevent that sleeve from departing from nook closing member.And backboard combines together with front apron, can limit again the contact position of operator's hand.Preferably, backboard 33 is to removably connect with nook closing member 2, as buckle connects.Facilitate like this installation and removal of sleeve 32, simplified the difficulty of producing and assembling.Described backboard 31 is being the horn-like setting of radiation towards the contrary direction of front apron 31.Angle of inclination is difficult for excessive, 5 ° ~ 10 ° of preferred angled.

As in Fig. 1, we can also see, on the retaining wall 11 of described syringe 1, be provided for inserting the groove 12 of front apron 31.The interior sealing gasket 13 that arranges of described groove 12.Be inserted into syringe 1 when interior at nook closing member 2, just in time front apron 31 is inserted in groove 12 always.This structural design is the sealing in order to improve nook closing member 2 and syringe 1.

As Figure 4-Figure 6, columniform guide rod 4 is set between described retaining wall 11 and front apron 31.Guide rod 4 be can be telescopic guide rod 4, guide rod 4 is divided into several sections telescopic, socket connection between every section.Axle centered by the centrage of front apron 31 is set on described front apron 31 and carrys out three semicircular dish ears 311 that circumference array distributes, on dish ear 311, offer for passing through the hole of guide rod 4.The dish ear groove 14 corresponding with dish ear 311 is also set in the groove 12 of described retaining wall 11, and described guide rod 4 one end are connected in dish ear groove 14, and the other end is through the hole on dish ear 311; Described guide rod 4 is provided for limiting the limited block 41 of front apron 31 motion ranges through one end of dish ear 311.Limited block 41 can be also cylindrical.Front apron 31 can only be according to the orbiting motion of guide rod 4 like this, has avoided the rotation of front apron 31 in traveling process.Multiple guide rods 4 are centered around the surrounding of nook closing member, can prevent that again operator from directly touching nook closing member, plays protective separation effect.

As shown in Fig. 5-6, in order to prevent that used syringe is used again again, the scraping blade 42 that restriction front apron 31 can only move along a direction is set on the centre position of described guide rod 4.Scraping blade 42 is separately positioned on the both sides up and down of guide rod 4.Described scraping blade 42 is for flexible glue and be obliquely installed, and its one end is fixedly connected with guide rod 4, and the incline direction of described scraping blade 42 is to syringe 1 direction inclination.Air line distance between unsettled one end of upper and lower both sides scraping blade 42 is greater than the hole of dish ear 311.Scraping blade just can stop front apron 31 reverse movements like this.The position of described scraping blade 42 is arranged near groove 12 1 sides.The distance of one end that described scraping blade 42 is unsettled and groove 12 bottom surfaces is greater than the wall thickness of front apron 31.

In actual production, after syringe assembles, dish ear 311 positions of nook closing member 2 will just in time be pressed on scraping blade 42, scraping blade 42 are compressed in the hole of dish ear 311, then plastic sealing pack.In order to prevent in transportation or other fortuitous events depart from the position of scraping blade to making to coil ear, can to design a fixture and fix the position of syringe and nook closing member, or a shell fragment is set in groove.Before will using again, first extract shell fragment out.When reality is used, syringe first extracts medicinal liquid, and operator's withdrawing nook closing member 2, when extracting medicinal liquid, also makes to coil ear 311 and departed from scraping blade 42.Then be exactly injection process, nook closing member 2 can be by pushed home slowly, because scraping blade is to tilt to syringe 1 direction, so dish ear 311 still can pass through scraping blade 42, once but front apron 31 be inserted in groove 12, namely syringe completes injection process, scraping blade 42 will prevent that front apron 31 from extracting again, also just limited reusing of syringe, strengthened safety management, realized syringe can only disposable injection function.

Claims

1. a syringe, comprise syringe (1) and nook closing member (2), syringe (1) opening arranges retaining wall (11), the upper circumference array distribution rib (21) of described nook closing member (2), it is characterized in that: upper the pegging graft of described rib (21) arranges a guard block (3), and described guard block (3) comprises front apron (31), sleeve (32) and backboard (33); On described each rib (21), offer groove (22), in each groove (22), correspondence arranges a grafting piece (34), and all grafting pieces (34) are all fixedly attached on sleeve (32); Described front apron (31) is fixedly connected with sleeve (32), and described backboard is connected with nook closing member (2).

2. by a kind of syringe claimed in claim 1, it is characterized in that: described backboard (31) is being the horn-like setting of radiation towards the contrary direction of front apron (31).

3. by a kind of syringe claimed in claim 2, it is characterized in that: the groove (12) that is provided for inserting front apron (31) on the retaining wall (11) of described syringe (1).

4. by a kind of syringe claimed in claim 3, it is characterized in that: sealing gasket (13) is set in described groove (12).

5. by a kind of syringe claimed in claim 4, it is characterized in that: the outer surface of described sleeve (32) arranges inner fovea part (35).

6. by a kind of syringe described in claim 1 or 5, it is characterized in that: between described retaining wall (11) and front apron (31), guide rod (4) is set.

7. by a kind of syringe claimed in claim 6, it is characterized in that: dish ear (311) is set on described front apron (31), the dish ear groove (14) corresponding with dish ear (311) is also set in the groove (12) of described retaining wall (11), described guide rod (4) one end is connected in dish ear groove (14), and the other end is through dish ear (311); Described guide rod (4) is provided for limiting the limited block (41) of front apron (31) motion range through one end of dish ear (311).

8. by a kind of syringe claimed in claim 7, it is characterized in that: the scraping blade (42) that is provided for limiting front apron (31) direction of motion on described guide rod (4).

9. by a kind of syringe claimed in claim 7, it is characterized in that: described scraping blade (42) is for flexible glue and be obliquely installed, its one end is fixedly connected with guide rod (4), and the incline direction of described scraping blade (42) is to tilt to syringe (1) direction.

10. by a kind of syringe claimed in claim 9, it is characterized in that: the position of described scraping blade (42) is arranged near groove (12) one sides.