Abstract: A chemical liquid injector has syringe adapter 300 removably receiving a cylinder flange formed at a trailing end of cylinder 210 of syringe 200C, 200P, and injection head 110 on which syringe 200C, 200P is mounted with syringe adapter 300 interposed between them. Injection head 110 has adapter receiver 114a opened upward, on which syringe adapter 300 is exchangeably mounted. Syringe adapter 300 has a pair of arm portions located on both sides of left and right of the received cylinder flange and supported to be elastically displaceable so that an interval between the arm portions can be changed.

Abstract: A medical image system comprises a medical imaging apparatus, an injector, and a hospital management server having database. The injector has (a) communicating means for allowing communication with the hospital management server; and (b) a patient identifying portion which includes a detecting means for detecting patient-specific information and a means for transmitting the recognized information, further comprising (c) checking means being provided for at least one of the hospital management server and the injector or being provided as a separate apparatus, the means receives information transmitted from the patient identifying portion, and checks the received information to identify the patient.

Abstract: A contrast liquid injector has a controller that calculates a necessary volume of the contrast medium based on a read out necessary dose of effective component per unit weight, weight of the subject, and concentration of the effective component. The injection rate of a base-operation condition is changed based on the calculated necessary volume of the contrast medium, wherein the predetermined injection time is unchanged, for all volumes of the contrast medium, when making the injection pattern, whereby a timing of an optimum concentration of the contrast medium will be substantially unchanged for all volumes of the contrast medium.

Abstract: Provided is an injector in which adhesion between a stator and a rotor of an ultrasonic motor can be released efficiently. An injector (1) which injects a chemical liquid includes: an ultrasonic motor unit (3) including an ultrasonic motor (31); a drive mechanism (4) to be driven by the ultrasonic motor unit (3) so as to feed the chemical liquid when the ultrasonic motor (31) rotates forwardly; and a control device (5) which controls the ultrasonic motor (31) of the ultrasonic motor unit (3). The ultrasonic motor (31) includes a stator (32) and a rotor (33), and the control device (5) controls the ultrasonic motor (31) to alternately repeat forward rotation and reverse rotation so that adhesion between the stator (32) and the rotor (33) is released.

Abstract: A contrast liquid injector has a controller that calculates a necessary volume of the contrast medium based on a read out necessary dose of effective component per unit weight, weight of the subject, and concentration of the effective component. The injection rate of a base-operation condition is changed based on the calculated necessary volume of the contrast medium, wherein the predetermined injection time is unchanged, for all volumes of the contrast medium, when making the injection pattern, whereby a timing of an optimum concentration of the contrast medium will be substantially unchanged for all volumes of the contrast medium.

Abstract: A liquid injector (400) injects a medical liquid into a patient whose fluoroscopic image data is to be picked up, and generates injection history data corresponding to the injection. A control box (500) allocates identification data associated with the fluoroscopic image data to the injection history data, and PACS (300) stores the fluoroscopic image data and the injection history data allocated with the identification data. The injection history data is also stored in association with the fluoroscopic image data to be stored, and hence the injection history data can also be confirmed when viewing the fluoroscopic image data.

Abstract: The preset invention provides a liquid injector in which, when an injection time period and an injection rate are entered as an injection condition, a condition image having a horizontal width corresponding to the injection time period and including the injection rate as text data is displayed in a condition screen with its vertical axis representing the injection rate and its horizontal axis representing the injection time period at a vertical position in association with the injection rate and a horizontal position in association with the injection time period. The operator easily understands instinctively the injection condition from the horizontal width and the position of the condition image, and since the condition image includes the injection rate as text data, the operator can check quickly the numerical values. Thus, the liquid injector can be provided which allows simple entry and review of the injection condition.

Abstract: A liquid injector registers the data of a variable pattern in which an injection rate of a contrast medium varies with time. The injection rate of the contrast medium varies with time according to the variable pattern for maintaining a state in which the image contrast achieved by the contrast medium approximates an optimum level.

Abstract: The preset invention provides a liquid injector in which, when an injection time period and an injection rate are entered as an injection condition, a condition image having a horizontal width corresponding to the injection time period and including the injection rate as text data is displayed in a condition screen with its vertical axis representing the injection rate and its horizontal axis representing the injection time period at a vertical position in association with the injection rate and a horizontal position in association with the injection time period. The operator easily understands instinctively the injection condition from the horizontal width and the position of the condition image, and since the condition image includes the injection rate as text data, the operator can check quickly the numerical values. Thus, the liquid injector can be provided which allows simple entry and review of the injection condition.

Abstract: To provide a leak detecting sensor capable of favorably detecting a leak of a chemical liquid regardless of orientation in fixing to a patient. The leak detecting sensor has a plurality of light-emitting elements 11 each emitting light to be applied to the patient, and a single light-receiving element receiving the light emitted by the plurality of light-emitting elements and reflected by the patient. The plurality of light-emitting elements are placed to surround the single light-receiving element.

Abstract: Chemical liquid injector 100 includes two piston driving mechanisms 130 each moving a piston of a syringe forward, main injection condition determining section 171 determining injection conditions for a chemical liquid in main injection, test injection condition determining section 172 determining injection conditions for the chemical liquid in test injection performed prior to the main injection to inject a smaller injection amount of the chemical liquid than that in the main injection, and control section 161 creating an injection protocol in accordance with the injection conditions determined by test injection condition determining section 171 and main injection condition determining section 172 such that the chemical liquid is injected in a series of operations in which the test injection is performed, then a preset injection suspension time is present, and subsequently the main injection is performed, and further controlling operation of piston driving mechanisms 130 in accordance with the injection prot

Abstract: A medical fluid injector device injecting a patient with a mixed medical fluid provided by a plurality of medical fluids and capable of simply setting injection conditions for the mixed medical fluid. A medical fluid injector (100) includes an injector head (110) injecting a diluted contrast medium into a patient and a controller unit (50). The controller unit (50) performs a process of receiving an input relating to an injection rate of the diluted medical fluid, a process of receiving an input relating to a mixture ratio by an operator, a process of calculating an injection rate of a contrast medium based on the mixture ratio, and a process of calculating an injection rate of physiological saline based on the mixture ratio. The injector head (110) injects the contrast medium and the physiological saline at the calculated injection rate of the contrast medium and the calculated injection rate of the physiological saline, respectively.

Abstract: A liquid injector stores data of operating conditions of a liquid injection mechanism for regions to be imaged, and also stores data of schematic images of a plurality of body sections and schematic images of regions to be imaged in association with each other. The liquid injector displays the schematic images in the shape of a human body. When one of the schematic images of the corresponding regions is selected, the liquid injector reads the data of corresponding operating conditions, and controls operation of the liquid injection mechanism according to the read operating conditions. When the operator manually selects one of the schematic images of the body sections and then manually selects one of the schematic images of the corresponding regions, the liquid injector automatically injects a contrast medium into the subject under operating conditions corresponding to the selected region to be imaged.

Abstract: An injection apparatus includes an injector head (110) and a console (150) having a touch screen display, performing following procedures: (a) displaying icons of a plurality of imaging-regions on the display; (b) when one icon of imaging-region is selected, reading an injection time associated with the imaging-region; (c) determining an contrast medium volume to be injected into the patient; (d) determining an injection rate of the contrast medium based on the determined contrast medium volume and the injection time; (e) displaying a thumbnail image (175) on the display, the thumbnail image including a graph of an injection condition showing a relationship between the injection time and the injection rate; and (f) when a certain icon on the display and/or a certain hard button on the injector head is pressed, starting a mode for an injection in accordance with the injection condition.

Abstract: The medical fluid injector (100) includes injector head (100) and controller (150). The controller (150) performs processing of receiving an input of a distance from a first position to a second position of a patient, processing of receiving an input of time t1 for the contrast medium to reach the first position, and processing of receiving an input of time t2 for the contrast medium to reach the second position. The controller further calculates a flow rate of the contrast medium based on the distance from the first position to the second position and times t1 and t2, determines a moving speed of a bed of the fluoroscopic imaging apparatus in association with the flow rate, and displays the moving speed of the bed on a display of the controller.

Abstract: A leak detector sequentially emits pulse signals toward a human body at a position at which a needle is inserted, detects pulse signals reflected inside of the human body, and measures a time interval between the emission and the detection for each of the pulse signals. The leak detector then calculates the difference between the measured interval and a predetermined time interval, and generates a leak warning for notification when the difference exceeds an acceptable range. Since a swelling on the surface of the human body causes a path of the pulse signal to extend, the leak detector can detect, based on the extended signal path, that the needle has come off a blood vessel.

Abstract: A chemical liquid injector comprises liquid syringe 200 and a chemical liquid injector. Liquid syringe 200 has cylinder member 210, a piston member and RFID tag 230 put on an outer circumference of cylinder member 210. The chemical liquid injector has cylinder holding mechanism 120 for holding cylinder member 210, a piston driving mechanism for driving the piston member and an RFID reader. The RFID reader has reader antennas 132L, 132R placed opposite to a tag antenna so as to be able to receive data from RFID tag 230 with cylinder member 210 is appropriately held by the cylinder holding mechanism. The piston driving mechanism is permitted to operate only when the RFID reader receives data from RFID tag 230.

Abstract: When consumable part such as pressure-resistant cover (300) is installed on a chemical solution injector (100), consumption degree data is read from storage means such as an RFID chip of the consumable part and temporarily held. If the consumption degree updated according to the use of the consumable part exceeds the consumption criteria, a replacement preliminary warning is outputted and the updated consumption degree data is written in the consumption storage means (310) of the consumable part. Since the consumption degree of a consumable part installed on a mechanical device is automatically detected and a replacement preliminary warning is issue to the user at an adequate timing, continuous use of a totally consumed part, unnecessary replacement of a non-totally consumed part is prevented.

Abstract: A piston adapter, which can be easily removed even when it is mounted on a piston member of a rodless syringe and pressed in a cylinder member, is provided. In piston adapter 200, when manual operation member 230 is manually rotated relative to adapter rod 210, adapter shaft 220 is also rotated to turn the trailing end of flange engagement member 240 engaging with an engagement open/close mechanism near leading end of the flange engagement member, thereby piston adapter 200 can be easily put on and removed from the piston member of the rodless syringe its leading end by manually operating the trailing end of piston adapter 200.

Abstract: Syringe adapter 300 has base member 310 and flange lock member 320. Flange lock member 320 is formed in generally arc shape as a whole so as to receive a cylinder flange inside. Flange lock member 320 has look hook 323 and engagement hook 324 formed thereon. Look hook 323 locks the cylinder flange by rotation of a syringe received in flange lock member 320 about its axis. Engagement hook 324 locks syringe adapter 300 to the apparatus so as not to release lock to the apparatus in the state in which the cylinder flange of the syringe is received in flange lock member 320.