CN208893362U - Asepsis injector - Google Patents

Abstract

The utility model discloses a kind of asepsis injectors, comprising: injection tube, the piston rod being set in the injection tube, the piston handle for being connected to the plunger end, the piston for being connected to the piston rod front end, the finger support chip for being connected to the injection tube tail end, the puncture needle for being connected to the injection tube front end and the shroud being connected between the finger support chip and piston handle.The utility model is provided with shroud between finger support chip and piston handle, has thoroughly prevented contact of the hand with piston rod, so as to avoid the pollution of syringe, medical fluid in injection process；By setting the first elastic collar and the second elastic collar, realizes shroud stabilization on the injector, is detachably connected, is i.e. the stability of raising shroud connection, and make shroud convenient for removing, set can be reused after covering on sterilization.The utility model manufacturing process is simple, low in cost, can improve the working efficiency and work quality of medical staff.

Description

Asepsis injector

Technical field

The utility model relates to medical instruments field, in particular to a kind of asepsis injector.

Background technique

The syringe clinically used at present is divided into glass syringe, disposable syringe and self-destruction syringe.Glass The inner wall of glass syringe and the external world communicate, and are easy to enter bacterium in medical fluid, and Reusability, are easy to infect drug；One Although secondary property syringe does not reuse, as glass syringe, inner wall and the external world are communicated, and easily make bacterium infection drug； Self-destruction syringe can be avoided the infection of drug, but be used only once, and generally requires and extracts medical fluid back and forth just when making up a prescription It can complete to make up a prescription, therefore the application range limitation of self-destruction syringe is too big.

In current medical practice, domestic each medical institutions in order to prevent in medical procedure microorganism intersection sense Dye more and more uses disposable sterilized injector, and this syringe is mainly by empty cylinder, piston and piston rod three Part forms.On the surface using this syringe, it appears that the cross-infection of microorganism is avoided, but in actual use, Then it is difficult to avoid that medical staff as misoperation pollution caused by syringe.According to the requirement of nursing, from air-tight bottle or When ampoule interior suction taking liquid, it is necessary to which the piston handle for twitching piston rod rear portion carrys out band piston and inhales medicine, and inhales not handy hand when medicine Contact piston bar, can only grip piston handle, generally hold medicine bottle and syringe sky cylinder with the right hand, left hand grip syringe piston handle, To keep sterile working, pollution of the hand to syringe and medicament contact part is avoided.But in clinical practice work, especially exist When syringe capacity and larger medical and nursing work amount, medical staff is often difficult to the operation requirement in accordance with injection, and uses " handle greatly Grab " bad habit, often hold syringe piston rod, to cause the pollution to piston rod, and with piston The twitch of bar and pollute empty cylinder, and then lead to the pollution of drug in empty cylinder, medical fluid is more in cylinder, and the chance of pollution is bigger, knot Fruit results in infusion reaction and cross-infection.For being injected intravenously dosing, pioneer is added in 500 milliliters of sodium chloride injection It No. 58 grams, once needs to be added 16 (finished product packings 0.5 gram 1), is required according to operation, at least need repeatedly aspirating syringe living Plug 50 times, when preparating liquid, even if putting on sterile gloves, it is also difficult to accomplish sterile working because can not all articles all locate In germ-free condition, thus liquid medicine contamination is difficult to avoid that, is just needed to abandon after syringe is contaminated, also be will cause a large amount of waste.

Utility model content

It is a kind of sterile the technical problem to be solved by the utility model is in view of the deficiency of the prior art, provide Syringe.

In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of asepsis injector, comprising: note Shooting cylinder, the piston handle for being connected to the plunger end, is connected to the piston rod at the piston rod being set in the injection tube The piston of front end, the finger support chip for being connected to the injection tube tail end, the puncture needle for being connected to the injection tube front end and company The shroud being connected between the finger support chip and piston handle；

Terminal pad is provided on the front end face of the finger support chip；

The front end of the shroud is connected with the first elastic collar for being set on the piston handle, after the shroud End is connected with the second elastic collar for being set in the terminal pad.

Preferably, multiple trapezoidal inserted blocks are provided on the rear end face of first elastic collar, before the piston handle Multiple trapezoidal jacks with the trapezoidal inserted block cooperation are provided on end face.

Preferably, it is provided on the outer wall of the terminal pad and finger support chip connecting pin for second elasticity The annular groove that lantern ring is inserted in.

Preferably, multiple arcs elastic slice is provided on the side wall in the annular groove.

Preferably, the injection tube front end is provided with and communicated with tapered joint head, the both ends open of the tapered joint head And inner hollow.

Preferably, it is connected on the front end face of the piston for cooperating the taper plugged in the tapered joint head Thin bar.

Preferably, taper needle guard is arranged on the tapered joint head, the puncture needle is connected to the taper needle guard Front end.

Preferably, the shroud is thin-film covering or telescopic Corrugated Sleeve.

The beneficial effects of the utility model are: the asepsis injector of the utility model, finger support chip and piston handle it Between be provided with shroud, prevented contact of the hand with piston rod, thoroughly so as to avoid the dirt of syringe, medical fluid in injection process Dye；By setting the first elastic collar and the second elastic collar, realizes shroud stabilization on the injector, is detachably connected, The stability of shroud connection is improved, and makes shroud convenient for removing, set can be reused after covering on sterilization.The utility model Manufacturing process is simple, low in cost, and does not influence the original of syringe and use function, moreover it is possible to improve the work effect of medical staff Rate and work quality.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the asepsis injector of the utility model；

Fig. 2 is the structural schematic diagram of the shroud of the utility model；

Fig. 3 is the finger support chip of the utility model and the structural schematic diagram of terminal pad；

Fig. 4 is second elastic collar of the utility model and the cooperation schematic diagram of terminal pad；

Fig. 5 is first elastic collar of the utility model and the cooperation schematic diagram of piston handle；

Fig. 6 is the top view of the piston handle of the utility model.

Description of symbols:

1-injection tube；2-piston rods；3-piston handles；4-pistons；5-finger support chips；6-shrouds；7-the first bullet Property lantern ring；8-the second elastic collar；9-terminal pads；10-tapered joint heads；11-taper thin bars；12-taper needle guards； 13-puncture needles；70-trapezoidal inserted blocks；30-trapezoidal jacks；90-annular grooves；91-arc spring laminations.

Specific embodiment

The utility model is described in further detail below with reference to embodiment, to enable those skilled in the art's reference say Bright book text can be implemented accordingly.

It should be appreciated that such as " having ", "comprising" and " comprising " term used herein are not precluded one or more The presence or addition of a other elements or combinations thereof.

As shown in figures 1 to 6, a kind of asepsis injector of the present embodiment, comprising: injection tube 1, the work being set in injection tube 1 Stopper rod 2, the piston 4 for being connected to 2 front end of piston rod, is connected to 1 tail end of injection tube at the piston handle 3 for being connected to 2 tail end of piston rod Finger support chip 5, the puncture needle 13 for being connected to 1 front end of injection tube and the shroud being connected between finger support chip 5 and piston handle 3 6。

Shroud 6 is thin-film covering or telescopic Corrugated Sleeve.Venthole is offered on shroud 6.Shroud 6 is to the formation of piston rod 2 Protection, the hand contamination piston rod 2 of operator when preventing drawing liquid.Shroud 6 is scalable, will not influence the promotion back and forth of piston rod 2.

Terminal pad 9 is provided on the front end face of finger support chip 5；The front end of shroud 6 is connected with for being set in piston handle 3 On the first elastic collar 7, the rear end of shroud 6 is connected with the second elastic collar 8 for being set in terminal pad 9.

It is provided with multiple trapezoidal inserted blocks 70 on the rear end face of first elastic collar 7, is provided on the front end face of piston handle 3 more A trapezoidal jack 30 with the cooperation of trapezoidal inserted block 70.It is provided on the outer wall of terminal pad 9 and 5 connecting pin of finger support chip for the The annular groove 90 that two elastic collars 8 are inserted in.Multiple arcs elastic slice 91 is provided on side wall in annular groove 90.First elastic collar 7 and second elastic collar 8 it is shrinkable, convenient for set on the injector.

Trapezoidal inserted block 70 of first 7 sets of the elastic collar on 1 tail end of injection tube, the rear end face of the first elastic collar 7 cooperates It is inserted into the trapezoidal jack 30 on the front end face of piston handle 3, realizes positioning and fixes, make the connection of the first elastic collar 7 more Add stabilization.

Second elastic collar 8 is set in the annular groove 90 in terminal pad 9, to be fastened on wherein；Arc spring lamination 91 is arranged In the front inner wall of annular groove 90 or rear end inner wall, after the second elastic collar 8 is inserted in annular groove 90,91 topstick of arc spring lamination Second 8 sets of elastic collar considerably increases the second elastic collar 8 in terminal pad 9 by the elastic reaction of arc spring lamination 91 Connective stability.

The setting of first elastic collar 7 and the second elastic collar 8 realizes the stabilization on the injector of shroud 6, detachable The stability that connection, i.e. raising shroud 6 connect, and make shroud 6 convenient for removing, shroud 6 can be reused after sterilization.

1 front end of injection tube is provided with and communicated with tapered joint head 10, the both ends open and inner hollow of tapered joint head 10.It is living It is connected on the front end face of plug 4 for cooperating the taper thin bar 11 plugged in tapered joint head 10.

When injection, when piston 4 is pushed forward the bottom of to, taper thin bar 11 is fully inserted into tapered joint head 10, can connect taper Medicament in connector 10 substantially completely squeezes out, to can be reduced the pharmaceutical quantities of interior remnants in tapered joint head 10, reduces medicament Waste.

It is arranged with taper needle guard 12 on tapered joint head 10, there is conical cavity in taper needle guard 12.Puncture needle 13 connects In the front end of taper needle guard 12.Taper needle guard 12 is set on tapered joint head 10, and connection is stronger, and conveniently removes.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model System.

It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art, Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality It is not limited to specific details with novel.

Claims (8)

1. a kind of asepsis injector characterized by comprising injection tube, is connected to the piston rod being set in the injection tube The piston handle of the plunger end, the piston for being connected to the piston rod front end, the finger for being connected to the injection tube tail end Support chip, the puncture needle for being connected to the injection tube front end and the shroud being connected between the finger support chip and piston handle；

Terminal pad is provided on the front end face of the finger support chip；

The front end of the shroud is connected with the first elastic collar for being set on the piston handle, and the rear end of the shroud connects It is connected to the second elastic collar for being set in the terminal pad.

2. asepsis injector according to claim 1, which is characterized in that be arranged on the rear end face of first elastic collar There are multiple trapezoidal inserted blocks, multiple trapezoidal jacks with the trapezoidal inserted block cooperation are provided on the front end face of the piston handle.

3. asepsis injector according to claim 1, which is characterized in that the terminal pad is connect with the finger support chip The annular groove being inserted in for second elastic collar is provided on the outer wall at end.

4. asepsis injector according to claim 3, which is characterized in that be provided on the side wall in the annular groove multiple Arc spring lamination.

5. asepsis injector according to claim 1, which is characterized in that the injection tube front end is provided with and communicated with taper company Connector, the both ends open and inner hollow of the tapered joint head.

6. asepsis injector according to claim 5, which is characterized in that be connected on the front end face of the piston for matching Close the taper thin bar plugged in the tapered joint head.

7. asepsis injector according to claim 6, which is characterized in that be arranged with taper needle on the tapered joint head Set, the puncture needle are connected to the front end of the taper needle guard.

8. asepsis injector according to claim 7, which is characterized in that the shroud is thin-film covering or telescopic waveform Set.