CN211658492U

CN211658492U - Syringe for injecting medicine into vitreous cavity

Info

Publication number: CN211658492U
Application number: CN201922055670.4U
Authority: CN
Inventors: 王芬
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-10-13
Anticipated expiration: 2029-11-25

Abstract

The utility model discloses an injector for injecting medicine into vitreous cavity, relating to the technical field of injectors, the injector for injecting the medicine into the vitreous cavity comprises a cylinder body, the bottom of the cylinder body is connected with a needle head, a piston rod is arranged in the cylinder body, a piston is fixed at the bottom of the piston rod, a pressing plate is fixed at one end of the piston rod opposite to the piston, the top of the pressure plate is provided with a marking mechanism, the bottom of the outer wall of the cylinder body and the bottom of the connecting ring are provided with a protection mechanism, through the arranged marking mechanism, when in use, medical staff can conveniently and quickly find the orientation of the glass cavity in the eyeball, thereby improving the efficiency and convenience of medicine injection in the glass cavity, and through the arranged protection mechanism, the phenomenon of inclination of the needle head during use can be avoided, and the needle head is prevented from entering too deep into eyeballs, so that the safety of the injector during use can be further improved.

Description

Syringe for injecting medicine into vitreous cavity

Technical Field

The utility model belongs to the technical field of the syringe, specifically be a syringe for vitreous chamber injection.

Background

The injector consists of a syringe with a small hole at the front end and a matched piston core rod and is used for injecting a small amount of liquid into an area which cannot be accessed by other methods or extracting the liquid from the area.

However, the injector for injecting medicine into the vitreous cavity in the market still has defects in use, for example, the traditional device is difficult to mark the eyeball, so that the positioning of the vitreous cavity is very inconvenient, and further the medicine injection operation of the vitreous cavity is difficult to be rapidly carried out.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an injector for vitreous cavity injection to the device that provides is difficult to the quick mark of vitreous cavity among the above-mentioned background art of solution, and the not high problem of device security.

The utility model adopts the technical scheme as follows:

the utility model provides an injector for injection of vitreous cavity, includes the barrel, the bottom of barrel is connected with the syringe needle, and the inside of barrel is provided with the piston rod, the bottom of piston rod is fixed with the piston, the piston rod is fixed with the clamp plate for the one end of piston, the top of clamp plate is provided with marking mechanism, the outer wall bottom of barrel, protection mechanism is installed to the bottom of go-between.

Preferably, the marking mechanism comprises three bumps, the three bumps are distributed in a straight line shape, and the bumps and the pressing plate are of an integrated structure.

Preferably, a limiting disc is fixed outside the pressing plate, and a cover cap is screwed on the top of the limiting disc and located outside the pressing plate through threads.

Preferably, a rubber pad is fixed at the top of the cap, and an anti-slip groove is formed in the outer wall of the rubber pad.

Preferably, the protection mechanism includes the limiting plate, the limiting plate is located the bottom of barrel, and the department sets up with syringe needle assorted through-hole in the middle of the inside of limiting plate, the outside both sides of limiting plate all are fixed with the support frame, two the top of support frame all is connected with the go-between.

Preferably, the cross-sectional shape of support frame is L shape, and the bottom of support frame is fixed with the silica gel pad, the top of go-between is fixed with the spacing ring, the internal diameter of spacing ring is unanimous with the diameter of barrel.

Preferably, a positioning disc is fixed inside the cylinder, and a round hole matched with the piston rod is formed in the middle of the inside of the positioning disc.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, through the marking mechanism who sets up, during the use, extrude the lug of clamp plate bottom directly with patient's eyeball, utilize the seal of a government organization in old china that three lug extruded the eyeball, can be convenient for medical personnel find the position of glass cavity in the eyeball fast to efficiency and convenient degree when can improve the glass cavity injection medicine.

2. The utility model discloses in, through the protection mechanism who sets up, during the use, the support frame can make the go-between hang in the top of patient's eyeball, and limiting plate and go-between can carry on spacingly to syringe needle and barrel respectively, and then appear the slope phenomenon when can avoiding the syringe needle to use to and avoid the syringe needle to get into the eyeball too deeply, thereby can further improve the security when the syringe uses, improved the practicality of device greatly.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a sectional view of the barrel of the present invention;

FIG. 3 is a top view of the stop collar of the present invention;

in the figure: 1. capping; 2. a rubber pad; 3. a limiting disc; 4. a piston rod; 5. a barrel; 6. a limiting ring; 7. a limiting plate; 8. a needle head; 9. a silica gel pad; 10. a support frame; 11. a piston; 12. a connecting ring; 13. pressing a plate; 14. a bump; 15. and (6) positioning a disc.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The first embodiment is as follows: referring to fig. 1-2, an injector for injecting medicine into a vitreous cavity comprises a cylinder body 5, wherein the bottom of the cylinder body 5 is connected with a needle 8, a piston rod 4 is arranged inside the cylinder body 5, a piston 11 is fixed at the bottom of the piston rod 4, a pressing plate 13 is fixed at one end of the piston rod 4 opposite to the piston 11, a marking mechanism is arranged at the top of the pressing plate 13, the bottom 12 of the outer wall of the cylinder body 5 and the bottom of a connecting ring 12 are provided with a protection mechanism;

a positioning disc 15 is fixed inside the cylinder 5, and a round hole matched with the piston rod 4 is formed in the middle of the inside of the positioning disc 15.

Through the aforesaid, can constitute the syringe for the injection with syringe needle 8, barrel 5, piston rod 4 and piston 11, when upwards twitching piston rod 4, under the effect of piston 11, syringe needle 8 can be with the liquid medicine of injection to the barrel 5 in, utilize positioning disk 15 can restrict the distance that piston 11 moved in barrel 5 inside to make barrel 5 only can extract the liquid medicine of 0.5ML capacity, wherein the length of syringe needle 8 is unanimous with the syringe needle of insulin injection, so as to ensure more convenient when annotating medicine to patient's vitreous cavity.

Example two: referring to fig. 1-3, the marking mechanism includes three bumps 14, the three bumps 14 are distributed in a line shape, and the bumps 14 and the pressing plate 13 are of an integrated structure of the pressing plate 13; a limiting disc 3 is fixed outside the pressing plate 13, a cap 1 is screwed and connected to the top of the limiting disc 3 and the outside of the pressing plate 13 through threads, a rubber pad 2 is fixed on the top of the cap 1, and an anti-skid groove is formed in the outer wall of the rubber pad 2;

the total distance between the lugs 14 at the two ends is 4mm, and the distances between the lug 14 in the middle and the lugs 14 at the two sides are 3.5mm and 0.5mm respectively;

during the use, can directly press patient's eyeball with clamp plate 13, then lug 14 can extrude patient's eyeball, because lug 14 is arc transition for one side of clamp plate 13, consequently lug 14 can not fish tail eyeball, and can extrude the eyeball and seal of a government organization, and then the usable seal of a government organization in old china of medical personnel marks patient's eyeball to the position of glass cavity in the eyeball is looked for fast, thereby can improve the convenient degree when glass cavity injects the medicine.

The protection mechanism comprises a limiting plate 7, the limiting plate 7 is positioned at the bottom of the barrel 5, a through hole matched with the needle head 8 is formed in the middle of the inner part of the limiting plate 7, supporting frames 10 are fixed on two outer sides of the limiting plate 7, and the tops of the two supporting frames 10 are connected with a connecting ring 12;

the cross-sectional shape of support frame 10 is L shape, and the bottom of support frame 10 is fixed with silica gel pad 9, and the top of go-between 12 is fixed with spacing ring 6, and the internal diameter of spacing ring 6 is unanimous with the diameter of barrel 5, utilizes the frictional force of silica gel pad 9 multiplicable support frame 10 and patient's eye both sides, and then can improve the stability of device, and spacing ring 6 can further improve the stability of barrel 5 simultaneously.

During the use, put support frame 10 behind the both sides of patient's eye, can make go-between 12 can hang in the top of patient's eyeball, then can pass go-between 12 with the syringe, under limiting plate 7 and go-between 12's effect, can carry on spacingly to syringe needle 8 and barrel 5 respectively, and then the phenomenon of inclining appears when can avoiding syringe needle 8 to use, limiting plate 7 still can prevent that syringe needle 8 from getting into the eyeball too deeply simultaneously to the security when can further improve the syringe and use.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an injector for vitreous cavity injection, includes barrel (5), the bottom of barrel (5) is connected with syringe needle (8), and the inside of barrel (5) is provided with piston rod (4), the bottom of piston rod (4) is fixed with piston (11), its characterized in that: the piston rod (4) is fixed with a pressing plate (13) relative to one end of the piston (11), the top of the pressing plate (13) is provided with a marking mechanism, the bottom of the outer wall of the cylinder body (5) is provided with a connecting ring (12), and the bottom of the connecting ring (12) is provided with a protection mechanism.

2. A syringe for intravitreal injection of drugs according to claim 1, wherein: the marking mechanism comprises three convex blocks (14), the three convex blocks (14) are distributed in a straight line shape, and the convex blocks (14) and the pressing plate (13) are of an integrated structure.

3. A syringe for intravitreal injection of drugs according to claim 2, wherein: the outer portion of clamp plate (13) is fixed with spacing dish (3), the top of spacing dish (3) just is located the outside of clamp plate (13) and is connected with block (1) through the screw thread spiral closure.

4. A syringe for intravitreal injection of drugs according to claim 3, wherein: the top of the cap (1) is fixed with a rubber pad (2), and the outer wall of the rubber pad (2) is provided with an anti-slip groove.

5. A syringe for intravitreal injection of drugs according to claim 1, wherein: protection mechanism includes limiting plate (7), limiting plate (7) are located the bottom of barrel (5), and locate to offer with syringe needle (8) assorted through-hole in the middle of the inside of limiting plate (7), the outside both sides of limiting plate (7) all are fixed with support frame (10), two the top of support frame (10) all is connected with go-between (12).

6. The syringe of claim 5, wherein: the cross-sectional shape of support frame (10) is L shape, and the bottom of support frame (10) is fixed with silica gel pad (9), the top of go-between (12) is fixed with spacing ring (6), the internal diameter of spacing ring (6) is unanimous with the diameter of barrel (5).

7. A syringe for intravitreal injection of drugs according to claim 1, wherein: a positioning disc (15) is fixed inside the cylinder body (5), and a round hole matched with the piston rod (4) is formed in the middle of the inside of the positioning disc (15).