Barb type conical head for self-destruction syringe
Technical Field
The utility model belongs to the technical field of medical instrument is relevant, concretely relates to self-destruction formula is barb type conical head for syringe.
Background
The injector is a common medical appliance, which is proposed by kathler of Italian as early as 15 th century, the principle of the injector is mainly used for extracting or injecting gas or liquid by using a needle, the injector can also be used for injecting medical equipment, containers and scientific instruments such as those in chromatography through a rubber diaphragm, the appearance of a needleless injector is an epoch-making revolution in the field of medical appliances, the appearance of the injector is an epoch-making revolution in the field of medical appliances and the injection is called by the process of extracting or injecting gas or liquid by using the needle, the injector consists of a syringe with a small hole at the front end and a piston core rod matched with the syringe and is used for injecting a small amount of liquid or extracting the liquid into an area which cannot be accessed by other methods or from the areas, when the core rod is pulled out, liquid or gas is sucked from the small hole at the front end of the needle cylinder, and when the core rod is pushed in, the liquid or gas is extruded.
The prior art of syringes has the following problems: the existing syringe basically has no destruction characteristic, the syringe main body is not destroyed, the syringe can still be used after being recycled, and at present, some lawless persons recycle the used syringe, so a plurality of medical accidents are caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a self-destruction formula syringe is with barb type conical head to it recycles the syringe after will using to put forward lawless persons in the above-mentioned background art and causes the problem of a lot of medical malpractice.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a self-destruction formula syringe is with barb type conical head, includes injection tube and push rod, the push rod is installed in the inside of injection tube, be provided with injection barrel on the peripheral outer wall of injection tube rear side, be provided with the barrel conical head on the injection tube front end outer wall, be provided with the bayonet socket on the peripheral inner wall of barrel conical head rear side, be provided with the self-destruction piece on the push rod front end outer wall, the bottom of self-destruction piece is provided with the cavity, be provided with the plug on the self-destruction head, the inside of plug is provided with the pusher, be provided with the self-destruction head on the pusher front end outer wall, be provided with the boss on the pusher rear end outer wall.
Preferably, the back half section of the self-destruction head is provided with the inside of the rubber plug.
Preferably, the bayonet is of an upward-opening barb shape, and the self-destruction head is of a downward-opening cone shape.
Preferably, the circumference outer wall of the injection tube is provided with scale strips, and the outer wall of the rear end of the push rod is provided with anti-falling lines.
Preferably, the rubber stopper is provided with a fixing groove in the inner part close to the lower side, and the pushing head is arranged in the fixing groove.
Preferably, the rubber plug is of a round soft rubber structure, and the push rod and the push head are of round hard rubber structures.
Compared with the prior art, the utility model provides a self-destruction formula syringe is with barb type conical head possesses following beneficial effect:
the utility model commands the injector to increase the self-destruction head at the front end of the push rod, thereby destroying the rubber plug on the self-destruction head, causing the self-destruction piece inside the rubber plug to stay inside the cone head of the cylinder body, the sealing performance of the rubber plug to be destroyed, realizing the self-destruction of the injector, when in use, firstly taking out the injector, then extracting the medicament, then injecting, holding the injection cylinder by hand during extraction, then advancing the push rod forward, discharging the air inside the injection cylinder, then injecting the liquid medicament, pushing the push rod to the bottom of the front end of the injection cylinder, causing the self-destruction piece to pass through the bayonet, causing the self-destruction piece to be blocked by the bayonet, both the bayonet and the self-destruction piece are cone-shaped, thus facilitating the self-destruction piece to be pushed into the bayonet, causing the bayonet to block the self-destruction piece, causing the self-destruction piece to stay inside the cone head of the cylinder body, causing the sealing performance of the rubber plug to be destroyed, the self-destruction piece can be pushed into the bayonet easily, so that the effect of destroying the sealing performance of the rubber plug is achieved, complete self-destruction is ensured by the self-destruction syringe, and the condition of secondary use is avoided.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:
fig. 1 is a schematic view of a three-dimensional structure of a barb-type cone head for a self-destruction syringe of the present invention;
FIG. 2 is a schematic view of the cross-sectional structure of the syringe according to the present invention when pushed in;
fig. 3 is a schematic sectional view of the syringe according to the present invention when pulled back;
FIG. 4 is a schematic view of a cross-sectional structure of a self-destruction element according to the present invention;
in the figure: 1. a cavity; 2. a push rod; 3. an injection cylinder; 4. an injection tube; 5. a cylinder cone head; 6. a self-destructive element; 7. a bayonet; 8. pushing the head; 9. a rubber plug; 10. a boss; 11. self-destruction head.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a self-destruction formula syringe is with barb type conical head, including injection tube 4 and push rod 2, push rod 2 is installed in the inside of injection tube 4, be provided with injection barrel 3 on the 4 rear side circumference outer walls of injection tube, be provided with barrel conical head 5 on the 4 front end outer walls of injection tube, be provided with bayonet socket 7 on the 5 rear side circumference inner walls of barrel conical head, be provided with self-destruction piece 6 on the 2 front end outer walls of push rod, the bottom of self-destruction head 11 is provided with cavity 1, self-destruction head 11 bottom in self-destruction syringe has increased cavity 1, can make things convenient for automatic assembly production through increasing cavity 1 in the bottom of self-destruction head 11, the production efficiency of self-destruction syringe has been improved, be provided with plug 9 on self-destruction piece 6, the inside of plug 9 is provided with pusher 8, be provided with self-destruction head 11 on the 8 front end outer walls of pusher, be provided with boss 10 on the.
A barb type conical head for a self-destruction syringe comprises an injection tube 4 and a push rod 2, the back half section of a self-destruction head 11 is provided with the inside of a rubber plug 9, so that the self-destruction head 11 can be separated from the rubber plug 9 to reach an active self-destruction state, a bayonet 7 is in a barb shape with an upward opening, the self-destruction head 11 is in a conical shape with a downward opening, the self-destruction head 11 can be conveniently pushed into the bayonet 7, the bayonet 7 clamps the self-destruction head 11, the self-destruction head 11 is separated from the rubber plug 9, the sealing performance of the rubber plug 9 is destroyed, the outer circumferential wall of the injection tube 4 is provided with scale strips, the outer wall of the back end of the push rod 2 is provided with anti-falling lines, the metering of liquid medicine can be conveniently extracted according to the scale strips, quantitative medicine can be injected, the anti-falling situation can be prevented during injection, a fixed groove is formed in the inner part of the lower side of the rubber, the push rod 2 and the push head 8 are both of a round hard rubber structure, so that the self-destruction head 11 can be separated from the rubber plug 9, and the self-destruction head 11 is clamped in the bayonet 7.
The utility model discloses a theory of operation and use flow: after the utility model is installed, when the injector is installed, the push rod 2 is firstly pulled out from the injection tube 4, then the fixing groove at the rear side of the rubber plug 9 is clamped on the pushing head 8, then the rear end of the self-destruction head 11 is clamped in the rubber plug 9, then the self-destruction head 11 and the rubber plug 9 are pushed into the injection tube 4 together, after the injection of the self-destruction injector is completed, the sealing performance of the rubber plug 9 is destroyed, so that the self-destruction injector can not extract liquid medicine again, when in use, the injector is taken out firstly, the liquid medicine can be extracted according to the use mode of the common injector, a certain amount of liquid medicine is extracted according to the scale strip on the inner tube on the injection tube 4, the injection tube 4 is held by hands, then the push rod 2 is pushed forwards, the air in the injection tube 4 is discharged, the liquid medicine injection is carried out again, and the push rod 2 is pushed to the bottom at the front end of the injection tube 4, so that the self-destruction, the self-destruction head 11 is blocked by the bayonet 7, the self-destruction head 11 stays in the cylinder cone head 5, the push head 8 and the rubber plug 9 are both arranged on the push rod 2, the sealing performance of the rubber plug 9 is destroyed, the self-destruction of the injector is completed, and the injector cannot be used for a second time.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.