3390results about How to "Simple and safe operation" patented technology

Injection device comprising a tubular elongated main body, a needle shield slidably arranged in said main body, a needle shield link slidably connected to said needle shield, a enclosure containing medicament arranged in said main body, a needle connected to said enclosure, a plunger operatively arranged to said enclosure for ejecting said medicament through said needle and arranged on its upper part with a number of outwardly extending stop members, spring means arranged to said plunger for operating said plunger, a dose activating means, a needle shield spring surrounding the needle shield link. The invention is characterised in that said injection device further comprises a first tubular member rotationally and slidably arranged inside said needle shield link, said tubular member comprises a number or ridges and protrusions on both its outer and inner surfaces, said ridges and protrusions on the outer surface of the tubular member co-operate with guide members arranged on the inner surface of said needle shield link, said ridges and protrusions on the inner surface of the tubular member co-operate with the outwardly extending stop members of the plunger that said injection device further comprises a second tubular member arranged inside said housing, arranged and designed with a number of ridges and protrusions on its inner and outer surfaces capable of setting and delivering a certain preset dose.

A battery quick-release structure for an electric mobility scooter includes a chassis, a battery case, hasps, retainers, connection rods, a handle, and elastic members. The battery case is mounted on the chassis. The retainers are disposed on the chassis. The battery case is provided with the hasps. The hasps are pivotally connected to the connection rods. The connection rods are connected to the handle. Both ends of each elastic member are respectively connected to the hasp and the battery case. The hasps are normally locked to the retainers. The battery case is released for portability by pulling up the handle for the connection rods are to free the hasps from the retainers.

A plastic lid for a can of the type comprising a tubular body (10) having an upper end (13) for the seating of the lid (20) comprising a sealing portion (21), removably seated on the tubular body (10) and provided with an upper edge (21b), a seal portion (25), to be ruptured upon the first opening of the lid (20), having an upper ring (25b) which is incorporated to a lower skirt (25a), said upper ring (25b) and said lower skirt (25a) being respectively seated onto and around part of the upper end (13), said upper ring (25b) being incorporated through radial bridges (26), to said upper edge (21b), the seal portion (25) presenting an interruption (25c) extending through the width of the upper ring (25b) and through at least part of the height of the lower skirt (25a). The sealing portion (21) incorporates a gripping tab (27) which is manually operable only when part of the seal portion (25) is ruptured.

A tool for cutting or slitting the tubular sheath of a guide-catheter in the presence of a lead placed in this sheath. The tool (10) has a flattened, substantially planar blade holder body (12) with a cutting area (14) and a prehension area (16). The cutting area has a blade (18) and a tubular guide (22) receiving the lead for isolating it from the guide-catheter. The prehension area (16) has on a first side (30) an area for receiving the thumb and a lead holding pathway (68) spreading in the continuation of the tubular guide following an overall orientation forming an angle with this guide. The thumb reception area has a concave footprint (34) crossed through and through by the lead holding pathway (68), which spreads in the prehension area following an “S” shaped curve having a first curved area (74) and a second counter-curved area (76). The minimal distance between the blade (18) and the contour of the first footprint (34) is to the most equal to 15-20 mm.

In an endoscope having a proximal end area, a distal end area introducible into the body of a human being, a shaft extending in a longitudinal direction, and an optical device extending through the shaft in the longitudinal direction thereof and movable relative to the shaft, to enable particularly easy and safe handling of the optical device it is proposed that the optical device be fixable in axial direction relative to the shaft in a first position and in at least a second position differing from the first position.

A plastic lid for a can of the type comprising a tubular body (10) having an upper end (13) for the seating of the lid (20) comprising a sealing portion (21), removably seated on the tubular body (10) and provided with an upper edge (21b), a seal portion (25), to be ruptured upon the first opening of the lid (20), having an upper ring (25b) which is incorporated to a lower skirt (25a), said upper ring (25b) and said lower skirt (25a) being respectively seated onto and around part of the upper end (13), said upper ring (25b) being incorporated through radial bridges (26), to said upper edge (21b), the seal portion (25) presenting an interruption (25c) extending through the width of the upper ring (25b) and through at least part of the height of the lower skirt (25a). The sealing portion (21) incorporates a gripping tab (27) which is manually operable only when part of the seal portion (25) is ruptured.

An intravenous catheter introducing device includes a needle hub inserted into and axially slidable relative to an inner barrel wall surface of a barrel. The needle hub holds a needle cannula and permits the cannula to extend forwardly of the barrel for ready use. A catheter connection assembly is detachably sleeved on a front smaller-diameter wall portion of the barrel and permits a tip end of the needle cannula to project forwardly of a tubular cannula of the assembly. A releasably retaining member includes a retaining hole formed in a rear larger-diameter wall portion of the barrel, and a radially extending engaging peg engageable in the hole. Operation of an actuator mounted on the peg can disengage the peg from the hole so as to permit axial movement of the needle hub for drawing the needle cannula within the barrel.

An intravenous catheter introducing device includes a needle hub slidably inserted into a barrel and holding a needle cannula, a biasing member disposed to bias the needle hub to a rear position so as to retract the needle cannula in the barrel, and an easy release unit including an engaging wall segment which is attached to an outer surface of the barrel, two flexible squeezed wall segments which extend from the engaging wall segment and which is squeezable so as to move two latch members to steer clear of a retained end of the needle hub through an access hole in the barrel, thereby permitting the biasing member to bias the needle hub towards the rear position.