Abstract: A syringe (100) has a syringe body (1) hollow on the inside, a plunger (4) slidable in the syringe body (1) and provided at the rear with a shaft (41) that can be operated manually, an injection needle (2) engageable to the front end (13) of the syringe body (1) with a needle-carrier (20), and a guard mechanism (200) having a sleeve (5), a spring (7) and a abutment member (8) for the spring. The abutment member (8) is mounted in the head of the syringe and the spring (7) is disposed between the sleeve (5) and the abutment member (8). The sleeve (5) can pass from a retracted position of use, wherein the needle (2) protrudes forward therefrom to a forward position of safety, wherein it covers the needle.

Abstract: A butterfly needle for venipuncture includes a body with two protruding flexible tongues that can be bent by manual gripping by the user from a diverging position to a converging position, and a needle mounted axially in the fore end of a needle-carrier which a tail protruding rearward from the body to couple with the connection of a flexible tube destined to be connected to a syringe or a bottle. The needle-carrier is mounted axially slidable in the body to pass from a forward position of use wherein the needle protrudes forward from the body to perform the injection to a retracted position of safety wherein the needle is protected inside the body, there being provided guide elements able to guide the axial movement of the needle-carrier inside the body and end-of-stroke and locking elements able to lock the needle-carrier in the advanced position and in the retracted position.

Abstract: A safety catheter includes a body having an axial channel communicating with a sheath for administration of fluids, a guide needle insertable, though the channel of the body, into the sheath to guide it during insertion into a patient's body, and a guide needle body, supporting the guide needle, insertable into the catheter body and provided with at least one seat for coupling with medical instruments, the guide needle being mounted slidably in the catheter body to be able to pass from a forward working position, wherein the guide needle protrudes forward from the catheter body, to a retracted safety position, wherein the guide needle is protected inside the catheter body, locking elements disposed in the guide needle, cooperating with complementary stop elements disposed in the catheter body, to lock the guide needle body respectively in the forward working and the retracted safety positions.

Abstract: A butterfly needle (100) for venipuncture includes a body (1) with two outwardly protruding flexible wings (2) foldable by manual gripping by the user from a diverging position to a converging position, and a needle (9) mounted axially in the fore end (32) of a needle-carrier (3) which has a tail (8) protruding rearward from the body (1) to couple with the connection of a flexible tube designed to be connected to a syringe or bottle. A substantially cylindrical needle cover (5), hollow on the inside, is mounted to slide axially inside the body (1) to pass from a retracted position of use in which it leaves the needle (9) free and protruding forward from the body (1) to a forward position of safety in which it protrudes forward from the body (1) to cover the needle (9).

Abstract: A safety syringe includes a glass syringe body, a plunger slidable inside the syringe body and provided at the rear with a manually operable stem, an injection needle mounted at the front end of the syringe body, a sheath mounted integrally on the syringe body, a sleeve mounted slidably on the sheath to pass from a retracted use position to an advanced safety position, in which the needle is protected by the sleeve, locking elements mutually provided in the sheath and in the sleeve to lock the sleeve in position when it is in the retracted use position and in the forward safety position, and operating elements integrally mounted with the stem of the piston to cooperate with locking elements so as to allow movement of the sleeve from the retracted use position to the advanced safety position.

Abstract: An apparatus (100) for collecting blood samples comprises a sleeve (1) having a substantially cylindrical body (10), hollow on the inside, defining an inner chamber (11) open at the front and rear, a needle assembly (5) comprising a needle-carrier (50) which carries at its opposite ends a first external needle (51) designed to be inserted into the patient's vein and a second internal needle (52) designed to engage in a vacutainer-type test tube, and a safety device (7) having a substantially cylindrical hollow body (70) defining an inner chamber (71) able to receive the vacutainer-type test tube.

Abstract: An automatic safety syringe comprising a syringe body, hollow on the side and open at the front and rear; and a plunger sliding inside the syringe body with an injection stroke extending from a retracted syringe-filling position to a forward syringe-emptying position, the plunger being provided at the rear with a shaft that can be operated manually and brought out of the syring body through the rear end thereof. An injection needle integral with a needle carrier is egageable with the fore end of the syringe body. A hooking device is connected to the shaft of the plunger, to hook the needle carrier when the shaft is at the end of the injection stroke. An automatic device causes automatic retraction of the shaft of the plunger when the injection has been completed. a locking device is operatively connected to the shaft to block forward movement thereof when it is in the retracted position after intervention of the automatic device.

Abstract: A disposable syringe (100) comprises an internally hollow syringe body (1) open at the front and rear, a plunger (40) slidable inside the syringe body (1) and provided at the rear with a shaft (50) operated manually through the rear end (80) thereof, an injection needle (10) integral with a needle carrier (11), a supporting body (20), accommodating the needle carrier (11) in a removable manner and engaging with the fore end (2) of the syringe body (1), a spring (30) disposed under compression between the needle carrier (11) and the supporting body (20), a diaphragm (62) removably mounted in the shaft head (51) to cover a shaft inner chamber and an opening (60) in the shaft head (51) cooperating with tongues (13) in the needle carrier (11) to cause disengagement of the needle carrier from the supporting body (20), when the plunger (40) reaches an injection stroke end, so that the spring (30), expanding, retract the needle carrier (11) which abuts against the diaphragm (62) causing disengagement or rupture ther

Abstract: A disposable syringe (100) comprises an internally hollow syringe body (1) open at the front and rear, a plunger (40) slidable inside the syringe body (1) and provided at the rear with a shaft (50) operated manually through the rear end (80) thereof, an injection needle (10) integral with a needle carrier (11), a supporting body (20), accommodating the needle carrier (11) in a removable manner and engaging with the fore end (2) of the syringe body (1), elastic means (30) disposed under compression between the needle carrier (11) and the supporting body (20), a diaphragm (62) removably mounted in the shaft head (51) to cover a shaft inner chamber and engagement means (60) in the shaft head (51) cooperating with reciprocal engagement means (13) in the needle carrier (11) to cause disengagement of the needle carrier from the supporting body (20), when the plunger (40) reaches an injection stroke end, so that the elastic means (30), expanding, retract the needle carrier (11) which abuts against the diaphragm (62)

Abstract: An automatic safety syringe (100) comprises:

Abstract: A disposable syringe (100; 200) comprises:

Abstract: A disposable syringe comprises a syringe body (1), a plunger (40) mounted on a stem (50) slidable inside the syringe body (1), and an injection needle (10) integral with a needle-carrier (11) engageable with the fore end (2) of the syringe body (1) or the plunger, retaining means (20, 23, 24) able to retain spring means (30) under compression being provided integrally with the syringe body (1) and engagement means (59) able to cooperate with the retaining means (23) to release the spring means (30), when the plunger (40) has reached the end of its stroke, being provided integrally with said stem (50), so that the spring means (30) can act on the stem (50) to cause retraction thereof into the retracted position.

Abstract: A needle-covering sleeve (14), slidably fitted on the syringe barrel (1), is held in its retracted rest position by means of retaining tongues (10), which hook it at its rear rim (13). At the end of the injection stroke of the plunger (2), a rear flange (8) of the stem (3) of the plunger (2) radially opens the retaining tongues (10) apart, which release thereby the needle-covering sleeve (14). Then, the latter is axially advanced by means of a spring (16), to an advanced safety position, in which it entirely covers the needle (5) and is fastened to a sleeve-clamping ring (18), which is provided at the fore end of the syringe barrel (1). To this purpose, the sleeve-clamping ring (18) has peripheral elastic retaining tongues (19) which interact with matching retaining teeth (20) on the inner part of needle-covering sleeve (14) and prevent any axial backward movement of the needle-covering sleeve (14).

Abstract: The syringe is provided with a needle-covering sleeve (14), which is slidably fitted on the syringe barrel (1) and is held in its retracted rest position by means of retaining tongues (10), which hook its rear rim (13). At the end of the injection stroke of the plunger (2), a rear head (8) of the stem (3) of the plunger (2) radially opens the retaining tongues (10) apart, which release thereby the needle-covering sleeve (14). Then, the latter is axially advanced by a spring (16), until it entirely covers the needle (5). The needle-carrier (4, 104) has at least one lateral locking projection (28), slidably engaging in a longitudinal slot (18), which is formed in the needle-covering sleeve (14) and is delimited at its sides, at least in its progressively tapering rear end (118), by two convergent and elastically openable stop sticks (19) which allow the passage of the locking projection (28) between their free ends, but then point against it and fasten it to the needle-covering sleeve.