CZ223398A3 - Safety vacuum syringe for taking samples of blood being adapted to ergonomic requirements - Google Patents

Abstract

Safe vacuum syringe to collect blood samples tailored to ergonomic requirements the head / 3 / having a cannula needle / 31 / with a two-needle / 311, 312 / at its opposite ends, held in the middle držákemjehly / 32 /; a working roll (1) having an eccentric a weakened front portion (330) and a lower opening end; eccentric reduced filler tube (33), inserted in front labor rollers (1); vacuum container (5) having a plug (51) closed at its front end; tube connector / 4 / the curved connects during use a reduced filler tube / 33 / k a vacuum container (5); and characterized by a reversible forward kiytem (6), which can be thoroughly pressed on after use kanilačníjehlu / 31 /.

Description

Safe vacuum syringe for blood sampling, adapted to ergonomic requirements

Technical field

The present invention relates to a safe blood sampling syringe adapted to the ergonomic requirements of ^xJ , and more particularly to reversible cover syringes having an inverting needle front cover and a lowering invert cover that can be slipped into the work cylinder, respectively, in an inverted manner. Destruction of the needle in it.

BACKGROUND OF THE INVENTION

The present invention relates to a safe blood sample syringe adapted to ergonomic requirements, and in particular to providing a safe blood sample syringe adapted appropriately and safely to healthcare professionals and garbage workers.

Many diseases can be investigated through blood tests such as diabetes, jaundice, syphilis and AIDS. However, jaundice, syphilis and AIDS can also be transmitted by blood test. While the first two diseases can now be treated, AIDS is still incurable. Health care professionals are susceptible to accidental and potentially infectious stings due to careless administration appropriate to their work environment and actions. · ......

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- 2 or handling the syringe after use. The resulting mini-accidents caused by accidental needle punctures typically require a blood test for diseases such as AIDS and jaundice. Therefore, avoiding accidental needle stings is very important for healthcare professionals.

Upon completion of the blood sample collection, healthcare workers must close the needle cover to the needle and then retract to prevent the healthcare workers, waste workers, or others from stinging.

SUMMARY OF THE INVENTION

It is an object of the present invention to provide a safe blood sampling syringe adapted to ergonomic requirements, in which the needle can be retracted into the working cylinder after use and thoroughly destroyed therein to prevent accidental needle puncture.

Yet another object of the present invention is to provide a safe blood sampling syringe adapted to ergonomic requirements, in which, in order to meet these requirements, the needle should be fixed centered in front of the syringe.

BRIEF DESCRIPTION OF THE DRAWINGS

Giant. 1 is a longitudinal sectional schematic view of a preferred embodiment of the present invention prior to use.

Giant. 2 is a plan view of the piston as seen in the direction A-A in FIG. 1.

Giant. 3 is a schematic longitudinal sectional view of a preferred embodiment of the present invention during use.

Giant. 4 is a schematic longitudinal cross-sectional view of a preferred embodiment of the present invention after use, the needle and tube being pulled out of the syringe.

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4 · 49 44 · 4 · 4444

4 4 »« · 3

FIG. 5 is a schematic longitudinal cross-sectional view of a preferred embodiment of the present invention when the needle and the tube are separated.

Giant. 6 is a schematic perspective cross-sectional view of a reduced tube.

Giant. 7 is a cross-sectional view of the reversible front cover.

Giant. 8 is a cross-sectional view of a reversible rear cover.

Giant. 9 is a schematic longitudinal cross-sectional view of a preferred embodiment of the present invention whose needle is destroyed and encapsulated within the working cylinder.

DETAILED DESCRIPTION OF THE INVENTION

Giant. 1 is a schematic longitudinal cross-sectional view of the present invention. As shown in FIG. 1, the present invention comprises: a work roll 1 comprising a restricted inlet opening 11 in a centered front portion, an outer flange 12 disposed at the end of the lower opening having a V-shaped annular sleeve 121 at its outer edge; an inwardly crocheted flange 14 disposed on the inner wall a working roll 1 near the lower end, and two guide strips 13 arranged on the inner side of the cylinder wall on one side closest to the eccentrically reduced inlet 11; a needle head 3 comprising a forging needle 31 having an outer needle tip 311 and an inner needle tip 312 at its two opposite ends and a needle holder 32 holding the forging needle 31 in the center; an eccentric reduced filler tube 33 received at the front of the working cylinder 1, having an eccentric (eccentric) reduced portion 330 inserted into the reduced inlet opening 11 of the roller 11 to receive the needle holder 32 therein; an internal tooth flange 331 disposed on the bottom of the wider portion of the reduced filler tube 33 ; tube connector 4 secured in the working cylinder 1 under the reduced ·· · · · · ·

99 «

4 a filler tube 33 having an outer tooth flange 41 on top, which can be hooked with an inner toothed flange 331 of the reduced filler tube 33, a flange 42 disposed at the lower edge to engage the cylinder 1 through the inner hook shaped flanges 14 having two guide notches 421 one side to engage two guide rolls 13 of the work roll 11, and four frangible (breakable) connecting sheets 43 projecting downward from the bottom and connected to the plug 51; a vacuum container 5 having an upper opening for receiving the stopper 51, the stopper 51 having a crescent deep cavity 511 cut on one side of the lower surface upwardly aligned with the inner needle tip 312; a reversible (inverting) front cover 6 covering the outer needle tip 311, and a reversible rear cover 2 covered on the lower flange 12 of the cylinder. 2 is a cross-sectional view of line A-A in FIG. 1. As shown in FIG. 2, the inner needle tip 312 of the needle head 3 is ready to pierce through the crescent-shaped cavity 511 of the plug 51. There is a protruding block 52 projecting outwardly from one side of the container 5 when the vacuum container 5 and the working cylinder are separated block 52 may conveniently provide an obstacle for the vacuum container 5 when the container 5 is placed on a table. In addition, two guide notches 421 disposed on the flange 42 of the tubular connector 4 are engaged by two roller guide strips 13 for maintaining the crescent cavity 511 in alignment with the cannula 31.

Please note fig. 3 showing the syringe of the invention in use. When the reversible needle front cover 6 and the reversible back cover 2 are removed, the vacuum container 5 is pushed forward by the finger so that the inner tip 312 of the needle 31 is pierced into the vacuum container 5 through the crescent cavity 511 of the blood sample stopper 51; Simultaneously, the outer tooth flange 41 of the tubular connector 4 is pushed so that

5 has passed through the inner tooth flange 331 to a larger portion of the reduced filler tube 33.

Please note fig. 4, when the blood collection is completed, the vacuum container 5 is pulled backwardly, the outer tooth flange 41 of the tubular connector 4 will be hooked with the inner tooth flange 331 of the reduced filler tube 33, which feeds the needle head 3 containing the outer needle tip 311 into the cylinder 11. at the same moment, the inner needle tip 312 and the plug 51 of the vacuum container 5 will be separated.

Please note fig. 5, as the vacuum container 5 continues to be withdrawn, the flange 42 of the bottom of the tubular connector 4 will be hooked with the inner hook flange 14 in the working cylinder. The four frangible (breakable) connecting sheets 43 will be broken when turned around by the vacuum container 5.

Please note fig. 6, which schematically depicts a perspective cross-section of the reduced filler tube 33. The slot 332 is disposed on the wall of a larger portion of the reduced filler tube 33 to provide elasticity to leave the outer tooth flange 41 of the tubular connector 4 to be pressed into and hooked therewith.

Giant. 7 is a cross-section of a reversible (inverting) front cover 6, which reversible front cover 6 is formed from a tapered tube 61 having a base flange 62 disposed at a wider open end and a top zigzag shape 63 disposed at a smaller concave end and a plurality of hook shaped of the rings 611 disposed on the outer surface of the tapered tube 61 at a convenient location where the outer diameter of the tapered tube 61 is nearly equal to the inner diameter of the reduced inlet opening 11 of the working cylinder 11 so that the reversible front cover 6 can be hooked in place by one of the hook-shaped rings 611 engaged. into the annular sleeve (not numbered) in the reduced inlet opening 11 of the cylinder 1, while the reversible front cover 6 is

* · Φφ • φ φ φ • φ ·· • · it is pushed backwards.

Giant. 8 is a cross-section of a reversible back cover 2. This reversible back cover 2 comprises a cylindrical portion 21 with an outside diameter slightly smaller than the inner diameter of the cylinder 1, a hollow hemisphere head 22 disposed at one end of the cylindrical portion 21, and a hook-shaped ring 23 disposed on the circumference a portion 21 near the hemispherical head 22 to engage and be hooked into the inner hook-shaped flange 14, an annular sleeve 221 concave from the surface of the hemispherical head 22, with a radius equal to the eccentric radius of the reduced inlet opening 11 of the work roll X, the inner needle tip 312 will be placed in the annular sleeve 221 while the reversible back cover 2 is slid into the cylinder X in the reverse manner.

Please note fig. 9, which shows a view of the present invention in which the needle 31 is damaged and encapsulated in the working cylinder 11. While the reversible front cover 6 and the reversible rear cover 2 are inverted into the cylinder 1, the forging fastening needle 31 will be destroyed and encapsulated within the cylinder Ji. Because the distance between the cig-cag surface 63 of the front cover 6 and the bottom of the annular sleeve 221 of the reversible back cover 2 is designed much shorter than the entire length of the cannula needle 31 in which the reversible front cover 6 is fixed in place by engaging the hook rings 611 with a reduced inlet opening 11 of the working roll 1, while the reversible rear cover 2 is also fixed in place by a hook ring 23 hooked with the inner hook-shaped flange 14 of the roller 11.

The above embodiments may be modified by a person skilled in the art without departing from the spirit and scope of the appended claims.

Praha a.a.

Claims (2)

PATENT CLAIMS Safe blood sampling syringe adapted to ergonomic requirements, including: a needle head having a cannula needle with an outer needle tip and an inner needle tip at its opposite ends, and a needle holder holding the cannula needle in its center, a working cylinder having an eccentric weakened front portion with a reduced inlet opening therein, an outer flange arranged to terminate the lower opening and two longitudinal guide strips disposed on the inner wall of the cylinder on one side, closest to said eccentric reduced inlet opening, an eccentric reduced filler tube inserted in an eccentric weakened portion of the work roll having a hook-shaped inner flange arranged at its bottom, a vacuum container a cylindrical body having a stopper opening closed by a plug, and a rectifying block arranged on the outside of the cylindrical body near the front opening thereof, a tubular connector secured between the a reduced packing tube and vacuum container having a hook-and-tooth outer flange disposed at the front end, with two guide notches disposed on its and four frangible extending downwardly from the lower vacuum container; and characterized by a front cover and a reversible bottom cover which, after appropriate use of the reduced inlet opening and the lower opening of the working cylinder, may be inverted (inverted) into the cylinder to thoroughly destroy both needle tips therein. outer flange of lower part, (breakable) connecting blades of the part and attached to the plug by reversible (reversing) - 8 • · • ··· A secure blood sampling syringe adapted to the ergonomic requirements of claim 1, wherein the reversible (inverting) front cover is formed from a tapered tube having a base flange disposed at a wider open end and a zigzag surface plate disposed at a smaller concave end, and a plurality of hook-shaped rings arranged on the outer surface of the tapered tube at a suitable location where the outer diameter of the tapered tube is nearly equal to the inner diameter of the reduced inlet opening of the working cylinder so that said front cover can be hooked in place by one of the hook-shaped rings into the annular sleeve (unnumbered) in the reduced cylinder inlet while the front cover is pressed in reverse. A secure blood sampling syringe adapted to the ergonomic requirements of claim 1, wherein the reversible (inverting) back cover comprises a cylindrical portion with an outer diameter slightly smaller than the inner diameter of the working cylinder, a hollow hemisphere head disposed at one end of the cylindrical portion and an outer hook shaped a ring disposed on the periphery of the cylindrical portion near the base of the hemispherical head, an annular sleeve concave from the surface of the hemispherical head with a radius equal to the eccentric radius of the reduced cylinder inlet to ensure that the inner needle tip is positioned in said ring while the reversible back cover rollers in reverse. A secure blood sampling syringe adapted to the ergonomic requirements of claim 1, while the two reversible (invert) covers were respectively inverted into the work cylinder and fixed at a point where the distance between the zigzag surface of the front reversible cover and the bottom of the annular sleeve of the rear the cover is much shorter than the entire length of the fastening needle