A device for administering a fluid can include a cylinder, a piston connected to a piston rod, and a tensioning device connected to the piston rod. The tensioning device includes a ramp which is rotatable via a motor, a ramp track, and a roller which is in contact with the ramp track and which is mounted rotatably in a driver. A dose setting means can be provided which comprises a spacer and a movement unit. The movement unit can move the spacer from a neutral position into an active position between the driver and the cylinder such that the driver is stopped by the spacer and therefore the piston stroke during the movement of the piston to the open dispensing end is shorter in comparison to the case in which the spacer is in its neutral position.

A device for administering a fluid can include a cylinder, a piston connected to a piston rod, and a tensioning device connected to the piston rod. The tensioning device includes a ramp which is rotatable via a motor, a ramp track, and a roller which is in contact with the ramp track and which is mounted rotatably in a driver. A dose setting means can be provided which comprises a spacer and a movement unit. The movement unit can move the spacer from a neutral position into an active position between the driver and the cylinder such that the driver is stopped by the spacer and therefore the piston stroke during the movement of the piston to the open dispensing end is shorter in comparison to the case in which the spacer is in its neutral position.

Disclosed is an ambulatory infusion device, including a control unit and an electroacoustic transducer. The control unit is configured to operate the electroacoustic transducer as noise emitter or to operate the electroacoustic transducer as noise receiver and to determine from a received noise that is received by the electroacoustic transducer a state of the ambulatory infusion device.

The invention relates to a device for connecting multi-lumen lines for the medical field, in particular for wound care in the field of vacuum therapy, having a preferably one-piece basic body, designed for tight and preferably releasable connection of at least two line lumens, wherein the basic body, for furnishing a distributor chamber for at least one, preferably two, three, or more lumens, opening into it, of the connected line and preferably at least one channel for removing a fluid from and introducing it into the distributor chamber, and when the line is connected, the distributor chamber is sealed off in fluid-tight fashion from at least one line lumen in such a way that a fluid exchange between the distributor chamber and this line lumen is prevented.

The devices, assemblies, and methods described herein utilize photoacoustic principals to create a jet of fluid using a ultrasonic resonance member and a pulsed laser light beam. The ultrasonic resonance member is a treated substrate having an liquid interface surface in contact with a fluid. When a pulsed laser light beam is applied to the treated substrate, pressure is generated via induced ultrasonic waves to urge the fluid into a jet stream.

A device for administering a fluid is provided, with a cylinder (16, 116) which has an open dispensing end (17), a piston (36) which is displaceable between a front and rear end position in the cylinder (16, 116) and is connected to a piston rod (35) that protrudes along a first direction beyond a rear end of the cylinder (16, 116) opposite the open dispensing end (17) and is guided in a receiving block (10), a nonreturn valve (18) closing the open dispensing end (17), and a tensioning device (S) which is connected to the piston rod (35, 135) and is arranged in the receiving block (10).

The tensioning device (S) has a ramp (52) which is rotatable by means of a motor (12) and has a ramp track (53) extending along a helical line, wherein the ramp track (53) ascends from a first plateau along a region of inclination (S1, S2) to a second plateau and descends from the second plateau to the first plateau via a transition flank (46).

The tensioning device (S) furthermore has a roller (51) which is in contact with the ramp track (53) and is mounted rotatably in a driver (50), which is connected to that end of the piston rod (35, 135) which protrudes out of the cylinder (16, 116), and therefore, upon rotation of the ramp (52), the ramp track (53) runs below the roller (51), which thereby rotates, wherein the roller (51) has a support region (55) which rests on the region of inclination (S1, S2) of the ramp track (53), and at least one laterally adjoining side region (56, 57) which has a smaller outside diameter than the support region (55) and which does not rest on the region of inclination (S1, S2) of the ramp track (53), wherein, during rotation of the ramp, both the support region (55) and the side region (56, 57) come into contact with an edge (54) of the ramp track (53), said edge connecting the second plateau to the transition flank (46).

A device for administering a fluid is provided, with a cylinder (16, 116) which has an open dispensing end (17), a piston (36) which is displaceable between a front and rear end position in the cylinder (16, 116) and is connected to a piston rod (35) that protrudes along a first direction beyond a rear end of the cylinder (16, 116) opposite the open dispensing end (17) and is guided in a receiving block (10), a nonreturn valve (18) closing the open dispensing end (17), and a tensioning device (S) which is connected to the piston rod (35, 135) and is arranged in the receiving block (10).

The tensioning device (S) has a ramp (52) which is rotatable by means of a motor (12) and has a ramp track (53) extending along a helical line, wherein the ramp track (53) ascends from a first plateau along a region of inclination (S1, S2) to a second plateau and descends from the second plateau to the first plateau via a transition flank (46).

The tensioning device (S) furthermore has a roller (51) which is in contact with the ramp track (53) and is mounted rotatably in a driver (50), which is connected to that end of the piston rod (35, 135) which protrudes out of the cylinder (16, 116), and therefore, upon rotation of the ramp (52), the ramp track (53) runs below the roller (51), which thereby rotates, wherein the roller (51) has a support region (55) which rests on the region of inclination (S1, S2) of the ramp track (53), and at least one laterally adjoining side region (56, 57) which has a smaller outside diameter than the support region (55) and which does not rest on the region of inclination (S1, S2) of the ramp track (53), wherein, during rotation of the ramp, both the support region (55) and the side region (56, 57) come into contact with an edge (54) of the ramp track (53), said edge connecting the second plateau to the transition flank (46).

This invention relates to a container (1) which is pre-filled or pre-fillable with one or more substances, such as a medical liquid and similar, comprising a squeezable activation compartment (2) intended to contain said one or more substances, a dispensing compartment (3) including a first portion (31) equipped with at least one dispensing member (311, 312, 314) of said one or more substances, and a second portion (32), wherein said second portion (32) of said dispensing compartment (3) and said activation compartment (2) are fluid-dynamically connected, and an activator element (4) arranged inside said container (1).

This invention also relates to a method for dispensing at least one substance by means of a container (1), and to a production method of a container (1).

A syringe for dermal regeneration comprises a body comprising inner and outer tubes, a cylinder filled with a first fluid being inserted into the inner tube from behind, and the outer tube being spaced apart from the inner tube and shaped to surround the inner tube such that a fillable space is formed between the inner tube and the outer tube and is filled with a second fluid; an injector coupled to the front portion of the body, the injector comprising a first part, a second part, and a third part; a through-hole formed through one side of the second part of the injector so as to communicate with the fillable space; and a check valve provided in the through-hole so as to block a flow of fluid from the injector to the fillable space and to allow a flow of fluid from the fillable space to the injector.

A syringe device and a syringe system with a syringe device provides an ergonomic syringe device which enables safe operation and safe injection by using a pen-like syringe device having a drive housing, a syringe receptacle for receiving a syringe having a syringe body and a plunger guided therein, and a manually operable push button for activating an electrical delivery unit. The drive housing has a pressure supply unit for pneumatically actuating the plunger and a coupling connection for connection to an external supply unit. The pressure supply unit includes a drive channel which can be connected to the plunger of an inserted syringe. The syringe device has a vent channel connected to the drive channel and via an opening to the environment, the opening being closable by a finger when the push button is actuated.