Syringe pump with syringe barrel position detector
First Claim
1. A syringe pump comprising a device for detecting a syringe for use in a syringe pump, the syringe comprising a plunger, a barrel defined by a cylindrical wall and a flange projecting from the barrel, the device comprising:
- a syringe pump wall against which the syringe can be placed;
a first projection projecting outward from the plane of the syringe pump wall a distance from the syringe pump wall approximately equal to the thickness of the cylindrical wall; and
,a detector for detecting the presence of the syringe, the detector mounted to the syringe pump wall a distance from the projection such that the syringe barrel cannot activate the detector when the barrel is placed against the projection.
1 Assignment
0 Petitions
Accused Products
Abstract
A belt driven infusion pump for emptying the contents of a syringe is disclosed. The pump includes a syringe pusher including an anti-siphon catch and a pressure detector which is used for detecting occlusions or the end of infusion. A syringe clamp for locking a syringe in place is also provided. The syringe clamp is spring-loaded and lockable. A syringe position detector is provided to ensure the proper placement of the syringe prior to and during pumping. A control knob is provided on the face of the pump for controlling both the locking of the syringe barrel clamp and the coupling of the drive belt with a d.c. motor. The pump includes a housing having an elongated slot through which the syringe pusher is connected to the drive belt. A sealing band is connected to the syringe pusher and is moveable with the syringe pusher for sealing the slot against moisture or other contaminants. A pole clamp assembly is incorporated within the pump housing and includes a clamping arm for securing the pole between the clamping arm and the housing. The clamping arm is movable to a storage position where it is substantially flush with the outer surface of the pump housing.
104 Citations
9 Claims
-
1. A syringe pump comprising a device for detecting a syringe for use in a syringe pump, the syringe comprising a plunger, a barrel defined by a cylindrical wall and a flange projecting from the barrel, the device comprising:
-
a syringe pump wall against which the syringe can be placed; a first projection projecting outward from the plane of the syringe pump wall a distance from the syringe pump wall approximately equal to the thickness of the cylindrical wall; and
,a detector for detecting the presence of the syringe, the detector mounted to the syringe pump wall a distance from the projection such that the syringe barrel cannot activate the detector when the barrel is placed against the projection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A syringe pump comprising a device for ensuring the correct placement of a syringe in a syringe pump, the syringe comprising a plunger, a barrel defined by a cylindrical wall and a flange projecting from the barrel, the device comprising:
-
a syringe pump wall against which the syringe can be placed; a slot formed in the syringe pump wall for receiving the syringe flange such that when the barrel lies flush against the syringe pump wall, the syringe flange is correctly placed in the slot; a projection adjacent the slot projecting away from the plane of the syringe pump wall by a distance approximately equal to the thickness of the cylindrical wall; a detector adjacent the slot, mounted to the pump wall such that the syringe barrel will not activate the detector if the barrel is placed against the projection, but will activate the detector if the flange is placed in the slot and the barrel is flush with the syringe pump wall.
-
Specification