Methods and systems for selection of dosimetry levels and sphere amounts of radioactive compounds for use in a radioembolization procedure for procedure planning may include inputting activity parameter information into a dosimetry portal of a dosimetry selection tool; determining a customized activity based on the activity parameter information and one or more customized activity algorithms; generating one or more sphere amount and dosage recommendations based on the customized activity and one or more dosimetry selection algorithms; selecting one of the one or more sphere amount and dosage recommendations as a selected sphere amount and dosage recommendation; and generating a radioactive compound order for the radioembolization procedure based on the customized activity and the selected sphere amount and dosage recommendation.

A dosing device includes a rod element and a shell. The rod element has a stem with a longitudinal axis and a first thread arrangement. The shell has a second thread arrangement. The first thread arrangement of the rod element or the second thread arrangement of the shell includes a thread. The first thread arrangement of the rod element and the second thread arrangement of the shell engage. The rod element is movable along the longitudinal axis of its stem by rotating the shell and the rod element relative to each other causing the first thread arrangement of the rod element and the second thread arrangement of the shell to travel along each other. A dosage chamber is formed by moving the rod element along the longitudinal axis of its stem. The volume of the dosage chamber is varied by moving the rod element along the longitudinal axis of its stem. An inclination angle (α, β) of the thread varies along the thread. The dosing device according to the invention can allow for a precise and convenient dosing of a liquid out of a container. In particular, it can allow for efficiently dosing a comparably small volume out of a comparably large container.

Methods and systems for determination of flow parameters of administered fluid from a radioembolization delivery device may include translationally moving a device delivery arm of the radioembolization delivery device in a translational direction, wherein the device delivery arm is coupled to a syringe holder such that move in the translational direction one of proximally or distally advances the syringe holder; sensing, via one or more pattern sensors, a corresponding movement of a pattern associated with the translational device delivery arm movement as a sensed pattern movement; generating, via the one or more pattern sensors, one or more output signals based on the sensed pattern movement; and generating, via a processor, a flow rate of the administered fluid, a flow amount of the administered fluid, and/or the translational direction of movement of the device delivery arm with respect to the syringe holder based on the one or more

A driving structure and an injection machine are disclosed. The driving structure includes: a driving device, a first swinging assembly and a second swinging assembly, the first swinging assembly and the second swinging assembly both comprise a swinging block and a moving block, the swinging block is in contact with the moving block, the swinging block of the first swinging assembly and the swinging block of the second swinging assembly are both connected with an output end of the driving device, the swinging block in the same swinging assembly is configured to drive the moving block to move, and a working stroke of the moving block in the first swinging assembly and a working stroke of the moving block in the second swinging assembly are carried out at intervals.

An apparatus for discharging a dose of a fluid substance to an animal, the apparatus including: a delivery assembly adapted to discharge the dose of the substance to the animal; and a control system operatively associated with the delivery assembly so as to selectively operate the delivery assembly, wherein the control system is adapted to measure the discharge of the fluid substance from the delivery assembly such that the dose is discharged when the delivery assembly is operated.

A medical delivery device is disclosed having a rod element with a stem and a first thread arrangement, a dial shell with a second thread arrangement, a delivery orifice, and a switching mechanism. In a dosing status, the rod element is movable relative to the delivery orifice by rotating the dial shell around the stem causing the first thread arrangement and the second thread arrangement to travel along each other, a dosage chamber is formed between the rod element and the delivery orifice when the rod element moves away from the delivery orifice, and the rod element is prevented from movement along a longitudinal axis when an axial force is applied. In a delivery status, the rod element is movable along the longitudinal axis relative to the delivery orifice when an axial force is applied and moving the rod element by rotating the dial shell around the stem is prevented.

A medical delivery device is disclosed that includes a rod element, a dosage member and a lock mechanism. A stem of the rod element extends into an interior of a chamber body of the dosage member and a delivery orifice of the dosage member is arranged adjacent to a proximal end of the stem of the rod element. In a dosing status, the rod element is movable relative to the delivery orifice of the dosage member, such that a dosage chamber is formed within the chamber body between the stem of the rod element and the delivery orifice, wherein the dosage chamber increases when the rod element moves away from the delivery orifice. The lock mechanism changes the medical delivery device from a lock status to the dosing status, wherein in the lock status the rod element is prevented from moving relative to the dosage member delivery orifice.

A medical delivery device is disclosed having a rod element and a dosage member. The rod element has a stem and a first thread arrangement. The dosage member includes a delivery orifice, a chamber body and a second thread arrangement. The stem of the rod element extends within the chamber body and the delivery orifice is arranged adjacent to a proximal end of the stem. The dosage chamber is formed within the chamber body between the stem and the delivery orifice such that the dosage chamber increases when the rod element moves away from the delivery orifice. In a dosing status, the first thread arrangement of the rod element engages the second thread arrangement of the dosage member such that the rod element is moveable along its longitudinal axis relative to the delivery orifice of the dosage member.

A medical delivery device is disclosed including a rod element, a dosage member and a lock mechanism. The rod element has a stem and the dosage member includes a delivery orifice and a chamber body. The stem of the rod element extends into the chamber body and the delivery orifice is arranged adjacent to a proximal end of the stem. In a dosing status, the rod element is movable along its longitudinal axis relative to the delivery orifice, wherein a dosage chamber is formed within the chamber body between the stem and the delivery orifice such that the dosage chamber increases when the rod element moves away from the delivery orifice. The lock mechanism is adapted to change the medical delivery device from a lock status to a dosing status, wherein, in the lock status moving the rod element along its longitudinal axis relative to the delivery orifice is prevented.

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), wherein the tensioning device (S), when the piston (36) is in its front end position, can move the piston rod (35, 135) in a tensioning operation along the first direction until the piston (36) is in its rear end position in order thereby to fill the cylinder (16, 116) with the fluid to be administered and in order to pretension the piston rod (35, 135) toward the open dispensing end (17), and wherein the tensioning device (S), when the piston (36) is in its rear end position, can release the piston rod (35, 135) in a dispensing operation, and therefore the piston (36) moves counter to the first direction as far as its front end position because of the applied pretension and, in the process, fluid in the cylinder (16, 116) is dispensed via the nonreturn valve (18) for administering, wherein the cylinder (16, 116) together with the nonreturn valve (18) is in the form of an exchangeable front assembly (13, 14) which is releasably connected to the receiving block (10).