CN201524314U

CN201524314U - Three-section type full-automatic clamping-type buffer injection pen

Info

Publication number: CN201524314U
Application number: CN2009203107679U
Authority: CN
Inventors: 李修何
Original assignee: GANSU CHENGJI BIOPHARMACEUTICAL CO Ltd
Current assignee: GANSU CHENGJI BIOPHARMACEUTICAL CO Ltd
Priority date: 2009-09-18
Filing date: 2009-09-18
Publication date: 2010-07-14
Anticipated expiration: 2019-09-18

Abstract

The utility model discloses a three-section type full-automatic clamping-type buffer injection pen, comprising a pen-shaped shell formed by connecting an upper shell, a middle shell and a rotating sleeve by threads in sequence; the end head of the upper shell is provided with a round hole which is internally penetrated with a button; the middle part of the outer circumference of the button is provided with a circle of small bosses; the inner circumference of the upper shell is also provided with an upper boss; a button spring is arranged among the upper boss and the small bosses; the pen-shaped shell is internally provided with an expansion latch; a two-claw type hanger of the expansion latch corresponds to the upper boss; the outer circumference of the middle part of the expansion latch is provided with a middle boss; an expansion spring is arranged between the middle boss and the upper boss; the lower end head of the expansion latch is contacted with a piston which is arranged in the pen-shaped shell and contains medicine clamping type bottle when in use; the end head of the rotating sleeve is provided with a needle hole; and the inner end of the needle hole is provided with a needle head protecting seat. The device is applicable to the clamping type bottle with the piston, has convenient use and can be carried along the body.

Description

The full-automatic cassette buffering of a kind of three-section type injection pen

Technical field

This utility model belongs to technical field of medical instruments, relates to the full-automatic cassette buffering of a kind of three-section type injection pen.

Background technology

The most of employing manually of existing injection needle injected, also have the full-automatic clip type bottled syringe that some use the prepackage medicinal liquid in the market, but it is owing to adopt spring extension inserting needle and finish injection, shake bigger, the bump sound bigger, cause certain anxiety sense to the patient, and advancing medicine speed affects the treatment too soon, package assembly complexity in addition, the cost of manufacture height has influenced and has large batch ofly used and promote.

Summary of the invention

The purpose of this utility model provides the full-automatic cassette of a kind of three-section type buffering injection pen, and it is bigger to have solved in the prior art vibrations, and bump sound is bigger, baroque problem.

The technical scheme that this utility model adopted is, the full-automatic cassette buffering of a kind of three-section type injection pen, comprise a form of a stroke or a combination of strokes shell that forms by being threaded successively by last shell, middle shell and rotation set, the termination of last shell has circular hole, be installed with a button in this circular hole, the excircle middle part of button is provided with a circle small boss, and the inner periphery of last shell also is provided with a convex platform, is provided with button spring between convex platform and the small boss; Be provided with a flexible snap close in the form of a stroke or a combination of strokes shell, the double claw type hook of flexible snap close is corresponding with convex platform; The middle part excircle of flexible snap close is provided with boss in, is provided with coil tension spring between middle boss and the convex platform, the lower end of flexible snap close in use be installed in form of a stroke or a combination of strokes shell in the piston of pastille cassette bottle contact; The termination of rotation set has a pin hole, and this pin hole the inner is provided with the Tip protection seat.

The full-automatic cassette buffering of three-section type of the present utility model injection pen, its feature also is:

Described button is the cylindrical blind lid towards inner opening.

Described pastille cassette bottle have piston the cassette bottle.

Described Tip protection seat is by the material with cushioning effect.

Syringe of the present utility model is owing to adopted spring and buffer unit, and vibrations and bump sound significantly alleviate, the injection better effects if, simple in structure, with the aseptic twolip injection needle of disposable use, the supporting use of pastille cassette bottle, be used for the intramuscular injection medicinal liquid, easy to use, be convenient to promote.

Description of drawings

Fig. 1 is this utility model apparatus structure sketch map;

Fig. 2 is the partial enlarged drawing of this utility model device spring section.

Among the figure, 1. button, 2. button spring, 3. flexible snap close is 4. gone up shell, 5. in shell, 6. rotation set, 7. pastille cassette bottle, 8. coil tension spring, 9. Tip protection seat, 10. convex platform, boss in 11., 12. lower convex platforms, 13. small boss, 14. hooks.

The specific embodiment

Below in conjunction with the drawings and specific embodiments this utility model is elaborated.

As Fig. 1, Fig. 2, the full-automatic cassette buffering of three-section type of the present utility model injection pen structure is, comprise one by last shell 4, in the form of a stroke or a combination of strokes shell that forms by being threaded successively of shell 5 and rotation set 6, the termination of last shell 4 has circular hole, be installed with the button 1 of the cylindrical blind lid formula of inner opening on one day in this circular hole, the excircle middle part of button 1 is provided with a circle small boss 13, button 1 restraint during by the protruding circular hole of going up shells 4 of small boss 13, the inner periphery of last shell 4 also is provided with a convex platform 10, be provided with button spring 2 between convex platform 10 and the small boss 13, guarantee the elasticity of button 1; Be provided with a flexible snap close 3 in the form of a stroke or a combination of strokes shell, the double claw type hook 14 of flexible snap close 3 is corresponding with convex platform 10, can be stuck on the convex platform 10, also can be by cylindrical mouthful of extruding of button 1 lower end, two pawls of hook 14 inwardly close and with convex platform 10 disengagements; The middle part excircle of flexible snap close 3 is provided with boss 11 in, be provided with coil tension spring 8 between middle boss 11 and the convex platform 10, coil tension spring 8 can be soft finish and uphold action, the lower end of flexible snap close 3 in use be installed in form of a stroke or a combination of strokes shell in the piston of pastille cassette bottle 7 contact, coil tension spring 8 can promote piston extruding medicinal liquid and realize injection automatically; Lower convex platform 12 is arranged on the inner periphery of rotation set 6; the termination of rotation set 6 has the pin hole that can pass the twolip injection needle; this pin hole the inner is provided with Tip protection seat 9; Tip protection seat 9 is by the material with cushioning effect; such as rubber cushion or buffer unit; lower convex platform 12 and the distance that moves down that is used for the flexible snap close 3 of restraint after middle boss 11 contacts; the distance of lower convex platform 12 and Tip protection seat 9 adapts with the piston displacement of pastille cassette bottle 7, can play the cushioning effect of the spring tension in the injection process.

Pastille cassette bottle 7 is selected for use and is used with the aseptic twolip injection needle of disposable use that the cassette bottleneck is slidingly matched.

With reference to Fig. 1, the using method of this utility model device is: therefrom screw off rotation set 6 on the shell 5, the snap close 3 that will stretch is pushed in the shell 1 and resets, and makes hook 14 be stuck on the convex platform 10; A disposable sterilized use syringe needle is contained on new pastille cassette bottle 7 bottlenecks, and piston and the flexible snap close 3 at the bottom of 7 bottles in the pastille cassette bottle revolved; Rotation set 6 is enclosed within on the pastille cassette bottle 7 and with middle shell 5 spins; Carry out injection operation, press knob 1 with hands, spring 8 is stretched out, and by flexible snap close 3 automatic inserting needles, and further promotes piston medicinal liquid is pushed human body, can finish automatic inserting needle injection.

This utility model device and each quasi drugs are used, can be used for having the cassette bottle of piston, it is simple to reset when reusing, the pastille cassette is bottled to be unloaded conveniently, be used for the battlefield first aid of military medicine, urgent pain relieving, hemostasis and atomic weapon kill and wound, and anti-chemical weapon kills and wounds, prevention that the bacteriological protection weapon kills and wounds and treatment, the scene that is used for heart disease, the cerebrovascular of civilian medical domain save oneself, rescue the first aid with organophosphate poisoning etc. mutually.

Claims

1. the full-automatic cassette of three-section type cushions injection pen, it is characterized in that: comprise a form of a stroke or a combination of strokes shell that forms by being threaded successively by last shell (4), middle shell (5) and rotation set (6), the termination of last shell (4) has circular hole, be installed with a button (1) in this circular hole, the excircle middle part of button (1) is provided with a circle small boss (13), the inner periphery of last shell (4) also is provided with a convex platform (10), is provided with button spring (2) between convex platform (10) and the small boss (13); Be provided with a flexible snap close (3) in the form of a stroke or a combination of strokes shell, the double claw type hook (14) of flexible snap close (3) is corresponding with convex platform (10); The middle part excircle of flexible snap close (3) is provided with boss in (11), in be provided with coil tension spring (8) between boss (11) and the convex platform (10), the lower end of the snap close (3) that stretches in use be installed in form of a stroke or a combination of strokes shell in the piston of pastille cassette bottle (7) contact; The termination of rotation set (6) has a pin hole, and this pin hole the inner is provided with Tip protection seat (9).

2. the full-automatic cassette buffering of three-section type according to claim 1 injection pen, it is characterized in that: described button (1) is the cylindrical blind lid towards inner opening.

3. the full-automatic cassette of three-section type according to claim 1 buffering injection pen is characterized in that: described pastille cassette bottle (9) have piston the cassette bottle.

4. the full-automatic cassette buffering of three-section type according to claim 1 injection pen, it is characterized in that: described Tip protection seat (9) is by the material with cushioning effect.