AUTOMATIC INJECTION APPLICATOR

Abstract

An automatic applicator of injection is described, which is equipped with a programmable electronic module that activates a first linear motor (ML1) which axially displaces an arm (13) of the proximal end (11) to the fixed head (20) placed at the distal end of the housing (10), said arm (13) which compresses a cartridge (15) fitted in the chamber (12) formed between the head (20) and the free end of the arm (13) so as to gradually expel the fluid stored in the cartridge; and a second linear motor (ML2) actuated concurrent with the first linear motor (ML1), said second linear motor (ML2) retreating an arm (60) with a dragger (61) which slides axially a suction chamber (30) toward the intermediate portion of the housing (10) and contiguous to the outer surface of the inner chamber (12), gradually exposing the needle tip (50) for application of the injection. The equipment is also equipped with a motor (63) which vibrates the suction chamber (30), tightly sealed, inside which air is removed by a suction pump creating a vacuum for the suction of the mucous against the needle.

Claims

1. An automatic injection applicator comprising: a housing with an external surface provided with activating buttons, a proximal end with a handle area, an internal chamber in an intermediate region of the housing; a fixed head placed at the distal end of the housing having a needle covered by a suction chamber provided with a front opening with a silicone head provided with an opening through which the needle is transfixed, the needle end having a third motor in a head inner region, said suction chamber being provided with a pipe connected to a suction pump, characterized by presenting an electronic module that activates a first linear motor (ML1) which axially displaces an arm of the proximal end to the fixed head placed at the distal end of the housing, said arm which compresses a cartridge fitted in the chamber formed between the fixed head and the free end of the arm; and a second linear motor (ML2) triggered at a time interval after the first linear motor (ML1), interval time which is sufficient for the action of the vibration and the drug for pain relief, and said second linear motor (ML2) which recedes an arm with a dragger which slides axially the suction chamber toward the intermediate portion of the housing and contiguous to the outer surface of the inner chamber.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0021] FIG. 1 shows a perspective view of the housing of the automatic applicator of injection.

[0022] FIG. 2A shows a longitudinal sectional view of the housing of the automatic injection applicator, showing the needle at rest; and FIG. 2B shows the exposed needle, suitable for application of injection, by displacement of the suction chamber by dragger.

[0023] FIG. 3A shows a front view of the applicator; FIG. 3B is a view in section AA, exposing the inner parts, such as cartridge and plunger; FIG. 3C a view highlighting region B, for the best view of the cartridge slot, head and suction chamber; and FIG. 3D a view highlighting the vibration mechanism.

DETAILED DESCRIPTION OF THE INVENTION

[0024] The automatic applicator of the injection, object of the present invention, comprises a housing (10) with an external surface provided with activating buttons (101) of the motors and proximal end with a handle area (11), intermediate region provided with a chamber (12) where an arm is axially displaced (14), enclosed in a rectangular chamber (13) for compression of the anesthetic cartridge (15), packed inside the cylindrical chamber (12) toward a fixed head (20) arranged at the distal end of the housing (10), said fixed head (20) equipped with a needle (50) covered by a suction chamber (30) provided with front opening (31) with a silicone head (40) having an opening (41) which is pierced by the needle end (50) from the suction of the tissue, in order to promote the application of the injection into the patient.

[0025] An electronic module equipped with a computer program promotes the activation of a first linear motor (ML1), which extends the arm (14) in the inner chamber (12) where the anesthetic cartridge is previously fixed (15), said arm (13) axially extending from the proximal end (11) to the fixed head (20) at the distal end at a speed controlled by the electronic module, compressing the cartridge (15) so as to gradually expel the fluid stored in said cartridge (15) toward an opening (21) in the fixed head (20) moving the fluid to the needle (50) fixed to said fixed head (20).

[0026] Surrounding the suction chamber (30) there is a sleeve (62) on which there is a motor (63), responsible for vibrating this sleeve (62), actuated concurrently with the linear motor (ML1), which consequently makes the suction chamber vibrate (30), vibration that on contact with the mucous, decreases the patient's feeling of pain.

[0027] The activation of the first linear motor (ML1) causes, after a few seconds when the vibrational action and the drug have already had some effect, the activation of the second linear motor (ML2), provided with an arm (60) with a dragger (61) axially sliding the suction chamber (30) toward the intermediate portion of the housing (10), said suction chamber (30) moving adjacent the outer surface of the inner chamber (12) to expose the needle end (50) gradually, and the extent to which this movement of the suction chamber occurs (30), the needle (50) finds little resistance in tissues/mucous, which leads to slow and gradual penetration of said needle, and concomitantly occurs drug/anesthetic release/application to the patient, the extent to which the fluid is released by the compression action of the cartridge (15) attached to the camera (12).

[0028] The suction chamber (30) comprises an airtight structure provided with a pipe (32), which is connected to a suction pump (not shown) that generates vacuum in said suction chamber (30) in order to suck the skin/mucous from the silicone head (40) for the application of the injection.