CN105013048A

CN105013048A - Ejection-type injector

Info

Publication number: CN105013048A
Application number: CN201510356766.8A
Authority: CN
Inventors: 曹进
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-06-25
Filing date: 2015-06-25
Publication date: 2015-11-04

Abstract

The invention belongs to the technical field of medical devices and relates to an ejection-type injector. The ejection-type injector comprises an injector, a trigger part, a sleeve, an ejection seat, a syringe needle, springs and a hose. A support sleeve of the sleeve is fixedly connected with the ejection seat. A sliding oblique plane of the ejection seat is adhered closely to a trigger oblique plane of the trigger part. The trigger part is located at the position far away from the ejection seat. One surface of a push ejection plate is hung by a hook and the other surface of the push ejection plate is compressed by the springs. The other end of each spring compresses a spring retaining surface. A hollow needle is located in a hole of a bunting sleeve and contracts into a bunting ring. One end of the hose is communicated with a connecting sleeve of a syringe and the other end of the hose is communicated with a syringe needle connecting sleeve. The ejection-type injector is capable of preventing a human body from being injected with air at high ejection speed in order to greatly relieve pains of a patient.

Description

Ejection type syringe

Technical field

The invention belongs to medical apparatus technical field, relate to a kind of ejection type safe injection device, be specifically related to a kind of ejection type syringe.

Background technology

The patent No. is the Chinese invention patent of 200920028001.1, name is called " ejection type safe injection device ", disclose a kind of ejection type safe injection device, it is characterized in that being provided with cylindrical support cover, the lower end band baffle ring of support set, cylindrical support set upper side is connected with ejector-seat, syringe positioning sleeve and spring is provided with in ejector-seat, ejector-seat lower end is provided with syringe locating detent, trigger cylinder is provided with in support set, trigger cylinder lower end is provided with the striking cover stretching out baffle ring, trigger cylinder upper end is provided with the inclined-plane strutting syringe locating detent, during use, the syringe injection depth on request that medicinal liquid is housed loads in syringe positioning sleeve by medical personnel, and make spring be in compressive state, then hand-held guard shield or ejector-seat, striking ring is placed on the position that the person of being injected will inject, pressure striking ring, syringe locating detent struts by the inclined-plane of trigger cylinder, syringe positioning sleeve ejects by spring together with syringe, syringe needle is injected in patient body instantaneously.This invention structure is simple, with low cost, easy to operate, and result of use is better, the patient's use being specially adapted to child and partly having a fainting spell during acupuncture treatment.

This invention can be thrust syringe needle in patient muscle moment, alleviate the pain of patient, but the syringe that spring band kinoplaszm amount is larger moves, the inside is also with liquid medicine, speed is fast not enough, moreover, the elastic force of spring acts directly on syringe, syringe drives piston by frictional force again, easy relative motion between the two, during relative motion, piston always lags behind syringe, the cavity of powder charge water is made to become large, outside air is made to be entered the cavity of powder charge water by syringe needle, can this part air be squeezed in the body of people when having an injection, likely can cause more serious consequence, such as cause blood vessel embolism etc.

Summary of the invention

The object of the invention is to overcome the deficiencies in the prior art, adapt to reality need, provide a kind of and can launch fast, ejection type syringe air can not squeezed in human body.

The present invention is achieved through the following technical solutions:

Ejection type syringe, comprises syringe, trigger member, sleeve, ejector-seat, syringe needle, spring, flexible pipe;

Trigger member comprises striking ring, striking cover and trigger cylinder, and porose in the middle of trigger member, striking is enclosed within centre, connects striking ring and trigger cylinder, trigger cylinder end face has trigger ramp;

Sleeve comprises support set and baffle ring, and baffle ring is positioned at support set one end, porose in the middle of baffle ring, and peripheral at striking cover by this borehole jack, trigger member and sleeve form moving sets;

Ejector-seat is cylindrical tube shape, and there is multiple locating detent one end, locating detent has sliding bevel and hook, and the other end has spring block face;

Syringe needle comprises hollow needle, propels plate and syringe needle adapter sleeve;

Support set and ejector-seat are fixedly connected, sliding bevel is adjacent to trigger ramp, trigger member is positioned at from the position away from ejector-seat, propel plate one side to be hooked, another side by spring compression, the other end holddown spring block face of spring, spring is in compressive state, hollow needle is positioned at the hole of striking cover, contracts inside striking ring;

Syringe comprises injection tube and piston, and both surround the cavity of a receiving medical liquids, and there is injection tube adapter sleeve injection tube front end, and flexible pipe one end is communicated with injection tube adapter sleeve, and the other end is communicated with syringe needle adapter sleeve.

Above-described support set and ejector-seat are fixedly connected and refer to that use is threaded.

The manufactured materials of above-described flexible pipe is medical plastic.

Above-described multiple locating detent refers to 2 to 6.

Use procedure:

1) rotate ejector-seat, make it threadingly separate from sleeve at place;

2) syringe needle is stretched in medicinal liquid bottle, pull piston, make to suck medicinal liquid in injection tube, medicinal liquid enters in the cavity of injection tube by syringe needle, flexible pipe;

3) make to propel plate 42 one side to be tangled by hook 33, another side by spring compression, the other end holddown spring block face of spring, spring is in compressive state;

4) rotate ejector-seat, make it be combined by screw thread and sleeve;

5) hand-held supports cover, striking ring is made to push down the skin at patient place to be injected, press with strength, then trigger member moves to from the position close to ejector-seat along moving sets, promotes sliding bevel while trigger member rollback by trigger ramp, locating detent is stressed rear bending, propel plate to throw off from hook, syringe needle launches away under the thrust of spring, and hollow needle is moved by the hole in the middle of trigger member, expose the skin that striking ring also penetrates rapidly patient, reach the object of thrusting fast in patient muscle;

6) promote piston, make the medicinal liquid in piston press injection tube, medicinal liquid enters in patient body by flexible pipe, syringe needle, reaches the object of injection.

Beneficial effect of the present invention:

1) what be subject to the effect of launching is syringe needle, instead of the combination of injection tube-piston-medicinal liquid, and injection tube and piston are placed on motionless, and the inside can not be mixed into air, avoid and air sparging is entered in the body of people, avoid the major accidents such as blood vessel embolism.

2) parts by the effect of launching only have syringe needle, and quality is less, and ejection speed is very fast, significantly alleviates the pain of patient.

Accompanying drawing explanation

Fig. 1 is the positive view of the embodiment of the present invention, preejection situation;

Fig. 2 is the positive view of the embodiment of the present invention, the situation after launching;

Shown in figure: 1. trigger member; 11. striking rings; 12. striking covers; 13. trigger cylinders; 14. trigger ramp; 2. sleeve; 21. support sets; 22. baffle rings; 3. ejector-seat; 31. locating detents; 32. sliding bevels; 33. hooks; 34. spring block faces; 4. syringe needle; 41. hollow needles; 42. propel plate; 43. syringe needle adapter sleeves; 5. spring; 6. flexible pipe; 7. injection tube; 71. injection tube adapter sleeves; 8. piston.

Detailed description of the invention

Below in conjunction with drawings and Examples, the present invention is further described:

Embodiment: see Fig. 1 and Fig. 2.

A kind of ejection type syringe, comprises syringe, trigger member 1, sleeve 2, ejector-seat 3, syringe needle 4, spring 5, flexible pipe 6;

Trigger member 1 comprises striking ring 11, striking cover 12 and trigger cylinder 13, porose in the middle of trigger member 1, and striking cover 12, in centre, connects striking ring 11 and trigger cylinder 13, trigger cylinder 13 end face has trigger ramp 14;

Sleeve 2 comprises support set 21 and baffle ring 22, and baffle ring 22 is positioned at support set 21 one end, porose in the middle of baffle ring 22, and peripheral at striking cover 12 by this borehole jack, trigger member and sleeve form moving sets;

Ejector-seat 3 is cylindrical tube shapes, and there are 2 locating detents 31 one end, and locating detent 31 has sliding bevel 32 and hook 33, the other end has spring block face 34;

Syringe needle 4 comprises hollow needle 41, propels plate 42 and syringe needle adapter sleeve 43;

Support set 21 and ejector-seat 3 pass through thread connection, sliding bevel 32 is adjacent to trigger ramp 14, trigger member 1 is positioned at from the position away from ejector-seat 3, propel plate 42 one side to be tangled by hook 33, another side is compressed by spring 5, the other end holddown spring block face 34 of spring 5, and spring 5 is in compressive state, hollow needle 41 is positioned at the hole of striking cover 12, contracts inside striking ring 11;

Syringe comprises injection tube 7 and piston 8, and both surround the cavity of a receiving medical liquids, and there is injection tube adapter sleeve 71 injection tube 7 front end, and flexible pipe 6 one end is communicated with injection tube adapter sleeve 71, and the other end is communicated with syringe needle adapter sleeve 43.

The manufactured materials of above-described flexible pipe 6 is medical plastics.

Use procedure:

1) rotate ejector-seat 3, make it threadingly separate from sleeve 2 at place;

2) syringe needle 4 is stretched in medicinal liquid bottle, pull piston 8, make to suck medicinal liquid in injection tube 7, medicinal liquid enters in the cavity of injection tube 7 by syringe needle 4, flexible pipe 6;

3) make to propel plate 42 one side and be close to hook 33, another side is compressed by spring 5, the other end holddown spring block face 34 of spring 5, and spring 5 is in compressive state;

4) rotate ejector-seat 3, make it be combined by screw thread and sleeve 2;

5) hand-held supports cover 21, striking ring 11 is made to push down the skin at patient place to be injected, press with strength, then trigger member moves to from the position close to ejector-seat along moving sets, sliding bevel 32 is promoted by trigger ramp 14 while trigger member 1 rollback, locating detent 31 is stressed rear bending, propel plate 42 to throw off from hook 33, syringe needle 4 launches away under the thrust of spring 5, hollow needle 41 is moved by the hole in the middle of trigger member 1, expose the skin that striking ring 11 also penetrates rapidly patient, reach the object of thrusting fast in patient muscle;

6) promote piston 8, make the medicinal liquid in piston press injection tube 7, medicinal liquid enters in patient body by flexible pipe 6, syringe needle 4, reaches the object of injection.

The beneficial effect of the present embodiment:

1) what be subject to the effect of launching is syringe needle 4, instead of the combination of injection tube 7-piston 8-medicinal liquid, and injection tube 7 and piston 8 are placed on motionless, and the inside can not be mixed into air, avoid and air sparging is entered in the body of people, avoid the major accidents such as blood vessel embolism.

2) part quality by the effect of launching is less, and ejection speed is very fast, significantly alleviates the pain of patient.

Claims

1. ejection type syringe, is characterized in that, comprises syringe, trigger member, sleeve, ejector-seat, syringe needle, spring, flexible pipe; Trigger member comprises striking ring, striking cover and trigger cylinder, and porose in the middle of trigger member, striking is enclosed within centre, connects striking ring and trigger cylinder, trigger cylinder end face has trigger ramp; Sleeve comprises support set and baffle ring, and baffle ring is positioned at support set one end, porose in the middle of baffle ring, and peripheral at striking cover by this borehole jack, trigger member and sleeve form moving sets; Ejector-seat is cylindrical tube shape, and there is multiple locating detent one end, locating detent has sliding bevel and hook, and the other end has spring block face; Syringe needle comprises hollow needle, propels plate and syringe needle adapter sleeve; Support set and ejector-seat are fixedly connected, and sliding bevel is adjacent to trigger ramp, and trigger member is positioned at from the position away from ejector-seat, propel plate one side hooked, another side by spring compression, the other end holddown spring block face of spring, hollow needle is positioned at the hole of striking cover, contracts inside striking ring; Syringe comprises injection tube and piston, and both surround the cavity of a receiving medical liquids, and there is injection tube adapter sleeve injection tube front end, and flexible pipe one end is communicated with injection tube adapter sleeve, and the other end is communicated with syringe needle adapter sleeve.

2. ejection type syringe according to claim 1, is characterized in that support set and ejector-seat are fixedly connected and refers to that use is threaded.

3. ejection type syringe according to claim 1, is characterized in that the manufactured materials of flexible pipe is medical plastic.

4. the ejection type syringe according to claim 1 or 2 or 3, is characterized in that multiple locating detent refers to 2 to 6.