FR2684303A1 - MEDICAL PROTECTIVE SLEEVE IN BLOOD HANDLING AND OTHER INTERVENTIONS PRESENTING A RISK OF CONTAGION. - Google Patents

Abstract

The invention relates to a device for safety in blood handling (for example samples), infusions, injections, etc., safety of the user, the patient, third parties after use: the needle is integrated in the device and it is set in motion manually using two keys located on the outer wall of the tubular sheath, integral with the carriage carrying the needle. To avoid re-use, it suffices to put the needle in the blocking position after surgery, also preventing accidental contact by third parties. A complex set of notches, notches, protrusions, collar and ring allow the use of this process without danger before, during and after use. To perform infusions, injections, etc ..., it will suffice to adapt the diameter of the tubular body and the needle to the needs of the intervention.

Description

MEDICAL PROTECTIVE SLEEVE 26843s
IN BLOOD HANDLING AND OTHER INTERVENTIONS
PRESENTING A RISK OF CONTAGION
DESCRIPTION
The present invention relates to a safety device for patients, caregivers, laboratory personnel and third parties, during and after blood manipulations such as samples, transfusions, the principle being able to adapt to infusions, injections, etc.: it suffices to adapt the device to, for example, a syringe.

 To date, many contagions are by contact. an infected needle. The present invention allows that no contact with the needle takes place before, during and after the intervention.

 The device according to the invention consists of a tubular sheath (l), of diameter adapted to the type of intervention. In the sheath (1) circulates a cylindrical carriage (2), carrying, in its axis, a needle (3) intended to prick at its two ends. The axis of the carriage (2) divides the needle (3) into two parts (3a) and (3b) of unequal length, the long part (3a) being. intended to be introduced into the patient's flesh, and, in a second step, to penetrate the bottle (16); the short part (3b) must penetrate by the stopper (4) the bottle (5) which will collect the blood drawn.

The carriage consists of a piston (6); inside the piston (6), and at the bottom of the skirt (7) of the piston (6), there is a collar (8) which will allow the bottle (5) to be blocked; outside the skirt (7) is a notch (9) allowing the final blocking of the carriage (2) carrying the needle (3) after use. The carriage (2) carrying the needle (3) is set in motion using two push buttons (10), (Fig. 1), placed on the outer wall of the sheath (l) and integral with the carriage (2). The assembly (2), (3), (6), (10) can circulate inside the sheath (l) thanks to two diametrically opposite slots (11), formed in the length of the sheath (1), slots provided with three notches (12), (13), (14).

The device is presented to the user in the locked position thanks to the notches (12) formed in the slots (11) about one tenth of their course. This locking allows the establishment dfa ndestined to receive the blood collected. The bottle (5) is blocked by a collar and killed on the inner end of the skirt (7) of the piston (6) which follows the neck of the bottle (5).

At the other end of each of the slots (ll), at the end of the race, is the locking notch (13) allowing the blocking of the carriage (2) carrying the needle (3), to perform the intervention on the patient.

The third notch (14), located approximately in the middle of the length of each of the slots (ll) allows the carriage (2) to be blocked when introducing a second bottle (16) intended for possible mixing with the content. of the first bottle (5).

A plug (17), shutter of the sheath (1), is also used for sealing the needle (3) + vial (5) assembly.

At an internal end of the sheath (1), there is a ring (18) with double function: stop of the carriage (2) carrying the needle (3), and holding of the bottle (5) in the axis of the needle (3).

At the other internal end of the sleeve (1), there is a stop ring (19) of the carriage (2) and a collar (20) for attaching the carriage (2) as well as a plug (21) for closing the sleeve. .

 The caregiver engages the bottle (5) in the shortest part of the needle (3b), (Fig. 2), until it engages in the projection (8) at the bottom of the skirt (7) of the piston (6 ), the carriage (2) being engaged in the notch (12). The user then slightly rotates the keys (10) to release the carriage (2), then pushes the keys (10) until the carriage (2) stops on the ring (18), (Fig. 3 ).

A slight pivoting in the opposite direction to the first allows the needle (3) to be blocked, then the intervention on the patient.

At the end of the intervention, the caregiver releases the carriage (2) and pulls the keys (10) towards him to bring the needle (3) directly from the patient's body into the interior of the sheath (1) without 'she sees the air again.

If it is a simple sample, the caregiver pulls the keys (10) towards him until the end of the race (Fig. 6). I1 then perceives a click of blocking of the carriage (2) in the projection (9) by the lugs (20) of the sheath. I1 can recover the bottle (5).

In the case of a complex operation, for example taking the blood and then mixing the blood drawn with the content of another bottle (16), the user must put the carriage (2) in the notches (14) , (Fig. 4 and 5).

If it is an infusion or an injection, etc ..., it will be necessary to use a sheath (1) of diameter adapted to this use as well as its carriage (2) carrying the needle (3 ). The principle remains the same.

Claims (8)

 1 / Safety device for medical blood handling, consisting of a tubular sheath (Fig.lc-l) in which circulates a carriage (Fig.la-2) consisting of a piston (Fig.la-6), and carrier in its axis of a needle (Fig. la-3a 3b).  2 / Device according to claim 1 /, characterized in that the sheath (Fig.lc-l) has two slots- (Fig.ld-ll) diametrically opposite, made over the length and each provided with three locking notches (Fig. ld-l2), (Fig.ld-13), (Fig.ld)  3 / A method of using the device according to one of the preceding revications, characterized in that the carriage (Fig.la 2) is set in motion using two push buttons (Fig.la10) secured to the carriage (Fig.la-2), placed on the outer wall of the sheath (Fig.lc-l), and running along the slots (Fig. ld-ll).  4 / A method of use according to claim 3 /, characterized in that the notches (Fig.ld-12) of the slots (Fig.ld-ll) serve to lock the engagement of the bottle (Fig.lb-5) maintained by a collar (Fig.la-8) placed inside the skirt (Fig.la7) of the piston (Fig.la-6).  5 / A method of use according to one of claims 3 / or 4 /, characterized in that, from the locking position on the notches (Fig.ld-12), a pivot allows to abut against the ring ( Fig.lc-18) of the sheath (Fig.lc-l), and lock the carriage (Fig.la-2) on the notches (Fig.ld-13) to prick the patient.  6 / A method of use according to one of claims w to 5 /, characterized in that, when using a single bottle, the locking position by the notches (Fig.ld-13), a pivoting allows, at the end of the intervention on the patient, to release the carriage (Fig.la-2) which will lock in the notches (Fig.  ld-14). The notches (Fig.ld-14) also tighten to keep the bottle (Fig.lb-5) containing the sample, the sheath (Fig.lc-l) having been closed by the stopper (Fig.lc-21) at a end, and, at the other end, by the stopper (Fig.lC-17) ensuring the tightness of the vial (Fig.lb-5) and the needle (Fig.la-3a 3b).  7 / A method of use according to one of claims 3 / to 6 /, characterized in that, when using two bottles, the locking position by the notches (Fig.ld-14), we put place the bottle (Fig.lb-16) intended for analysis, centered by the ring (Fig.lc-18), so that the penetration of the part (3a) of the needle (Fig.la-3a 3b) is made in the center of the plug (Fig.lb-4).  8 / A method of use according to any one of claims 3 / to 7 /, characterized in that, from the locked position by the notches (Fig.ld-13), the pivoting unlocks the carriage (Fig.la -2), which is circulated until it comes into abutment on the ring (Fig.lc'-l9) of the sleeve (Fig.lc-l). The notch (Fig. la-9) of the skirt (Fig.la-7) of the piston (Fig.la-6) then fits on the projection (Fig.lc'-20) of the sleeve (Fig.lc-l). The bottle (Fig.lb-5) is ready to be removed from the sheath (Fig.lc-l). It is impossible to remove the bottle (Fig.lb-5) before the needle (Fig.la-3a 3b) has returned to the sheath (Fig.lc-l).