TH845A3 - Safety liquid sprayer with retractable needle holder - Google Patents

Abstract

The subcutaneous liquid syringe consists of a cylinder with one or more grips that Was held at the end The outer casing that is rotatable to the barrel is rotated to be positioned at first and second positions. And is arranged with at least one escape hole Operated syringe holder A cylindrical joint that is arranged in a sliding position in the cylinder's aperture. The mounting circle groove is arranged in section by Around the outside of the syringe holder for securing the barrel grips. Pusher with a bar body section that can be pulled Reversible needle holder When the outer casing is rotated to the position where one grip piece of the cylinder is held Wrap the barrel The syringe holder cannot move. When the outer casing is rotated to the second position The escape hole is aligned with the barrel handle, push it outward. The syringe holder is not limited in order to be Pulled back by pusher

Claims (9)

1. a subcutaneous liquid syringe that has a subcutaneous needle that is bonded to it The syringe contains: Cylinder with a barrel body, which is aligned with the aperture. And at least one grip that was arranged at The front end of the said cylinder And is arranged in the inner edge with anchored teeth A rotatable outer casing with an annular body section that is axially arranged by a hole. Clamp for fixing to the said body of the said cylinder And at least one escape hole That were set at The front of the body, the ring shape. The outer casing can be rotated in relation to These cylinders are positioned at different positions. A cylindrical co-operating needle holder that can be moved in the aperture. Of the said cylinder The mounting circular groove is arranged in its outer perimeter. And liquid conveying holes Axial overhang Pushers with bar body sections held at a predetermined position with cross-section. And the hooks that were arranged at the front end The stopper that is fixed at the front end of the pusher. And was placed in the said aperture of Such cylinder 2. The subcutaneous liquid syringe as described in claim 1, where the escape hole. There are three holes in the aforementioned outer casing. The three escape holes are arranged evenly spaced in the anterior portion of the ring-shaped body. The aforementioned grips of the said cylinder have Three pieces as well And each is aligned with the escape hole of the said outer casing. 3. Subcutaneous liquid syringes as stated in Clause 1 where the cylinder It also has an outer circular groove in the outer periphery. Such outer casing with outer ring In a rotatable holder in the aforementioned outer circular groove of the said cylinder 4. Subcutaneous liquid syringes as stated in Clause 1 where the syringe It also has an overhang button that is arranged in the outer perimeter. Such an outer casing with a slotted hole. The first, second, and connected through holes to align the cylinder's alignment protrusions. 5. Subcutaneous liquid syringes as described in Clause 4, where the outer casing remains There is a channel for the button protrusion that extends from the outer edge to the first such hole for the passage of the protrusion The position of the said cylinder 6. The subcutaneous liquid syringe as described in Clause 4, where the outer casing remains There is an overhang limiter arranged between the first hole. And such a second hole and an elastic hole arranged on one side Of the limit protruding 7. The subcutaneous liquid syringe as described in Clause 1 where the needle holder They are also arranged with at least one outer circular groove to accept the O-ring that can be blocked. Close to the aforementioned aperture of the said cylinder. 8. The subcutaneous liquid syringe as described in Clause 1 where the syringe holder It also has an end to pull edge. The pusher also has a hook that is arranged on the front end for fixing and pulling. The pull-off edge of the needle holder. 9. Subcutaneous liquid syringes as stated in Clause 1 where the syringe holder It also has a protective sleeve to accept the sheath of the needle to prevent needle detachment. Injected at a time when the needle is pulled back into 1 0. The subcutaneous liquid syringe as stated in Clause 1 where the needle holder It also has a retaining shoulder, which is positioned on one side of the cylindrical collector to protect it. The displacement is related to the direction of the front end of the said cylinder.