CN209316708U

CN209316708U - Injector for medical purpose

Info

Publication number: CN209316708U
Application number: CN201822112235.6U
Authority: CN
Inventors: 肖体先
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-17
Filing date: 2018-12-17
Publication date: 2019-08-30
Anticipated expiration: 2028-12-17

Abstract

The utility model provides a kind of injector for medical purpose, including injector cartridge (1), piston (2), piston push rod (3) and piston push handle (4)；The injector cartridge (1) includes integrally formed cylinder ontology (1.1), sloped footing (1.2) and connector (1.3)；The piston (2) is set in the cylinder of the injector cartridge (1), and the piston (2) includes plunger piston ontology (2.1), conical plug (2.2) and cone head (2.3).A kind of advantage are as follows: injector for medical purpose provided by the utility model, with following two design advantage: (1) can to greatest extent inject the medical fluid push in syringe cylinder body into the human body, liquor residue amount in syringe cylinder body is reduced, to avoid the waste of injection medicament.(2) develop a kind of pushing assisted parts, can assist personnel use the longer syringe of length, provide convenience for medical staff.

Description

Injector for medical purpose

Technical field

The utility model belongs to the field of medical instrument technology, and in particular to a kind of injector for medical purpose.

Background technique

In the medical field, injection treatment is a kind of mode that can faster treat disease, various injector for medical purpose After plugging injection needle on conehead, various medicaments can be injected into the subcutaneous of human body, muscle, blood vessel or other histoorgans It is interior, various liquid can also be aspirated out of human body histoorgan.

The syringe of the prior art in use, is primarily present following problems: since the injection tube of syringe is circle Tubular, the piston in injection tube be it is cylindric, therefore, when to human injection's liquid, columned piston both makes to be pulled to When most lower position, some drugs are still inevitably remained between columned piston and the injection tube of cylindrical shape, are led Cause the waste of injection medicament.

Utility model content

In view of the defects existing in the prior art, the utility model provides a kind of injector for medical purpose, can effectively solve above-mentioned ask Topic.

The technical solution adopted in the utility model is as follows:

The utility model provides a kind of injector for medical purpose, including injector cartridge (1), piston (2), piston push rod (3) and Piston push handle (4)；

The injector cartridge (1) includes integrally formed cylinder ontology (1.1), sloped footing (1.2) and connector (1.3)；The cylinder ontology (1.1) is cylindrical-shaped structure, the lower section of the cylinder ontology (1.1) and the sloped footing (1.2) integrally formed and be connected to；The tip position of the sloped footing (1.2) is integrally formed with the connector (1.3) and connects It is logical；

The piston (2) is set in the cylinder of the injector cartridge (1), and the piston (2) includes plunger piston ontology (2.1), conical plug (2.2) and cone head (2.3)；The outer diameter and the cylinder ontology of the plunger piston ontology (2.1) (1.1) internal diameter matches, and fixes below the plunger piston ontology (2.1) with the cone plane of the conical plug (2.2)；Institute The shape and size and the sloped footing (1.2) for stating conical plug (2.2) match, the cone position of the conical plug (2.2) The fixed cone head (2.3), shape and size and the connector (1.3) of the cone head (2.3) match, when described Cone head (2.3) be inserted into the connector (1.3) it is interior when, the conical plug (2.2) is located in the sloped footing (1.2)； The plunger piston ontology (2.1) is located at the bottom of the cylinder ontology (1.1)；

One end of the piston push rod (3) and the top surface of the piston (2) are fixed, the other end of the piston push rod (3) Across the inner cavity of the injector cartridge (1), and the outside of the injector cartridge (1) is extended to, in the piston push rod (3) Top surface the piston push handle (4) is fixedly mounted.

Preferably, the injector for medical purpose further includes pushing assisted parts (5)；

The pushing assisted parts (5) includes auxiliary cylinder (5.1), and auxiliary cylinder (5.1) is the column of both ends open Structure, the auxiliary cylinder (5.1) open up notch (5.2) along axial direction；The auxiliary cylinder (5.1) is solid in axially distinct position Dingan County is equipped with finger support (5.5)；

Auxiliary cylinder (5.1) internal diameter is greater than the internal diameter of the cylinder ontology (1.1), and is greater than the piston push handle (4) one end of diameter, auxiliary cylinder (5.1) has axially disposed socket (5.3)；In the cylinder ontology (1.1) top has axially disposed L shape plate (5.4), the L shape plate (5.4) and the socket (5.3) phase Match, the socket (5.3) of auxiliary cylinder (5.1) is inserted into the L shape plate (5.4), and then by the auxiliary cylinder (5.1) it is installed to the upper surface of described injector cartridge (1).

Injector for medical purpose provided by the utility model has the advantage that

A kind of injector for medical purpose provided by the utility model has following two design advantage: (1) can be maximum Into the human body by the medical fluid push injection in syringe cylinder body, liquor residue amount in syringe cylinder body is reduced, to avoid injecting The waste of medicament.(2) develop a kind of pushing assisted parts, can assist personnel use the longer syringe of length, be medical care Personnel provide convenience.

Detailed description of the invention

Fig. 1 is structural schematic diagram of the injector for medical purpose provided by the utility model in piston raised state；

Fig. 2 is structural schematic diagram of the injector for medical purpose provided by the utility model when piston moves down into lower position；

Fig. 3 is structural schematic diagram of the injector for medical purpose provided by the utility model when moving on to upper limit position on piston；

Fig. 4 is injector for medical purpose provided by the utility model and the installation diagram for pushing assisted parts；

Fig. 5 is the axial section provided by the utility model for pushing assisted parts；

Fig. 6 is this with the novel pushing assisted parts provided the location diagram with piston push handle radially.

Specific embodiment

The technical issues of in order to keep the utility model solved, technical solution and beneficial effect are more clearly understood, below In conjunction with accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific implementation described herein Example only to explain the utility model, is not used to limit the utility model.

The utility model provides a kind of injector for medical purpose, have following two design feature: (1) can to greatest extent by Medical fluid push injection in syringe cylinder body reduces liquor residue amount in syringe cylinder body into the human body, to avoid injection medicine The waste of agent.(2) develop a kind of pushing assisted parts, can assist personnel use the longer syringe of length, be medical care people Member provides convenience.

With reference to Fig. 1 and Fig. 2, injector for medical purpose includes injector cartridge 1, piston 2, piston push rod 3 and piston push handle 4；

Injector cartridge 1 includes integrally formed cylinder ontology 1.1, sloped footing 1.2 and connector 1.3；Cylinder ontology 1.1 be cylindrical-shaped structure, and the lower section of cylinder ontology 1.1 is integrally formed with sloped footing 1.2 and is connected to；The cone of sloped footing 1.2 Sharp position is integrally formed with connector 1.3 and is connected to；

Piston 2 is set in the cylinder of injector cartridge 1, piston 2 include plunger piston ontology 2.1, conical plug 2.2 and Cone head 2.3；The outer diameter of plunger piston ontology 2.1 and the internal diameter of cylinder ontology 1.1 match, under plunger piston ontology 2.1 Face and the cone plane of conical plug 2.2 are fixed；The shape and size of conical plug 2.2 match with sloped footing 1.2, conical plug 2.2 Cone position fixed cone tip 2.3, shape and size and the connector 1.3 of cone head 2.3 match, when cone head 2.3 is inserted When entering into connector 1.3, conical plug 2.2 is located in sloped footing 1.2；Plunger piston ontology 2.1 is located at cylinder ontology 1.1 Bottom；

One end of piston push rod 3 and the top surface of piston 2 are fixed, and the other end of piston push rod 3 passes through injector cartridge 1 Inner cavity, and the outside of injector cartridge 1 is extended to, piston push handle 4 is fixedly mounted in the top surface of piston push rod 3.

The top of cylinder ontology 1.1 has axially disposed L shape plate 5.4, auxiliary when not increasing the pushing that describes below When helping portion, L shape plate, which is used as, at this time refers to that support uses.

It uses principle are as follows:

Medical staff pushes piston push rod 3 to move down and carry out injecting liquid drug, as piston 2 is constantly mobile downwards, most Reach state shown in Fig. 2 eventually, figure it is seen that since 2 bottom of piston uses conical plug 2.2 and cone head 2.3, and infuse The bottom of emitter cylinder 1 uses sloped footing 1.2 and connector 1.3, also, cone head 2.3 is pressed into connector 1.3, such as This limited gap reduced between piston 2 and injector cartridge, and then effectively reduce between injector cartridge and piston Liquor residue amount, to avoid the waste of injection medicament.

As shown in figure 3, inventor has found during actually using syringe, it is disposable when needing for long needle tubing When injecting big quantity of fluid, when piston is moved to upper limit position, distance L mistake of the piston push handle at the top of injector cartridge Greatly, at this point, due to the limitation of manpower size, thumb can not be pressed on piston when medical staff uses the syringe and pushed away On handle, and index finger and middle finger are hooked on L shape plate simultaneously, that is, racking when singlehanded can not realize liquid injection, no Conducive to medical staff's use.

Such to solve the problems, such as, the present inventor has specialized in the auxiliary member of a syringe, medical with reference to Fig. 4-Fig. 6 Syringe further includes pushing assisted parts 5；

Pushing assisted parts 5 includes auxiliary cylinder 5.1, and auxiliary cylinder 5.1 is the column structure of both ends open, assists cylinder 5.1 open up notch 5.2 along axial direction；Open up the effect of notch are as follows: when the thumb of people is pressed in piston push handle 4 across notch, The thumb of people can be slided up and down along auxiliary cylinder 5.1, that is to say, that notch provides the sky that the thumb of people moves up and down Between.It is the set-up mode figure of notch with reference to Fig. 6.Auxiliary cylinder 5.1 is fixedly installed in axially distinct position refers to support 5.5；

It assists 5.1 internal diameter of cylinder to be greater than the internal diameter of cylinder ontology 1.1, and is greater than the diameter of piston push handle 4, assist cylinder 5.1 one end has axially disposed socket 5.3；There is axially disposed L shape plate at the top of cylinder ontology 1.1 5.4, L shape plates 5.4 match with socket 5.3, and the socket 5.3 of auxiliary cylinder 5.1 is inserted into L shape plate 5.4, and then will Auxiliary cylinder 5.1 is installed to the upper surface of injector cartridge 1.

Pushing assisted parts 5 has following design advantage:

(1) pushing assisted parts is an optional component, only when injector cartridge is longer, furthermore, it is desirable to by injection tube In vivo be full of medical fluid when just need using.

(2) pushing assisted parts is one and can be repeated several times the component used, between injector cartridge using socket and The mounting means of plate, installation and removal process are simple；

(3) it pushes on assisted parts and multiple finger supports 5.5 is set, when pushing down on piston push handle 4, with piston push handle 4 It moves down, index finger and middle finger are also moved down and be sandwiched in the finger support of lower section, facilitate medical staff's liquid medicine injection.

In conclusion a kind of injector for medical purpose provided by the utility model, has following two design advantage: (1) can To greatest extent into the human body by the medical fluid push injection in syringe cylinder body, liquor residue amount in syringe cylinder body is reduced, from And avoid the waste of injection medicament.(2) develop a kind of pushing assisted parts, can assist personnel use the longer injection of length Device provides convenience for medical staff.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and Retouching should also regard the protection scope of the utility model.

Claims

1. a kind of injector for medical purpose, which is characterized in that pushed away including injector cartridge (1), piston (2), piston push rod (3) and piston Handle (4)；

The injector cartridge (1) includes integrally formed cylinder ontology (1.1), sloped footing (1.2) and connector (1.3)； The cylinder ontology (1.1) is cylindrical-shaped structure, the lower section of the cylinder ontology (1.1) and the sloped footing (1.2) one It shapes and is connected to；The tip position of the sloped footing (1.2) is integrally formed with the connector (1.3) and is connected to；

One end of the piston push rod (3) and the top surface of the piston (2) are fixed, and the other end of the piston push rod (3) passes through The inner cavity of the injector cartridge (1), and the outside of the injector cartridge (1) is extended to, on the top of the piston push rod (3) The piston push handle (4) is fixedly mounted in face.

2. injector for medical purpose according to claim 1, which is characterized in that the injector for medical purpose further includes pushing assisted parts (5)；

The pushing assisted parts (5) includes auxiliary cylinder (5.1), and auxiliary cylinder (5.1) is the column structure of both ends open, The auxiliary cylinder (5.1) opens up notch (5.2) along axial direction；The auxiliary cylinder (5.1) is fixedly mounted in axially distinct position There is finger support (5.5)；

Auxiliary cylinder (5.1) internal diameter is greater than the internal diameter of the cylinder ontology (1.1), and is greater than the piston push handle (4) One end of diameter, auxiliary cylinder (5.1) has axially disposed socket (5.3)；On the top of the cylinder ontology (1.1) Portion has axially disposed L shape plate (5.4), and the L shape plate (5.4) matches with the socket (5.3), the auxiliary The socket (5.3) of cylinder (5.1) is inserted into the L shape plate (5.4), and then the auxiliary cylinder (5.1) is installed to institute State the upper surface of injector cartridge (1).