| Patents for A61M 1 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems (68,946) | 
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| 10/13/1981 | US4293961 Pulsatile flow cardiopulmonary bypass pump | 
| 10/13/1981 | CA1110551A1 Negative pressure valving system and transmembrane pressure alarm system | 
| 10/07/1981 | EP0036927A2 A device for the diffusion of substances between two fluids via semipermeable membranes | 
| 10/07/1981 | EP0036926A1 A device for the diffusion of substances between two fluids via semipermeable membranes | 
| 10/06/1981 | US4293762 Temperature-controlled electric heating device for heating instillation or transfusion liquids | 
| 10/06/1981 | US4293418 Fluid separation apparatus | 
| 10/06/1981 | US4293413 Dialyzer blood circuit and bubble traps | 
| 10/06/1981 | US4293409 Artificial kidney dialysate preparation system | 
| 10/06/1981 | CA1110137A1 Intravenous liquid pumping system and method | 
| 10/01/1981 | WO1981002682A1 A device for the diffusion of substances between two fluids via semipermeable membranes | 
| 10/01/1981 | WO1981002681A1 A device for the diffusion of substances between two fluids via semipermeable membranes | 
| 10/01/1981 | WO1981002678A1 Method and apparatus for displacing fluid in tubing | 
| 10/01/1981 | WO1981002675A1 Simultaneous respiration and endotracheal suctioning of critically ill patient | 
| 09/30/1981 | EP0036642A2 Catheter | 
| 09/30/1981 | EP0036546A2 Aspiration bottle for withdrawing secretions from wounds | 
| 09/29/1981 | CA1109747A1 Chest drainage collection system | 
| 09/22/1981 | US4290987 Plasmaphoresis | 
| 09/22/1981 | CA1109351A1 Urinary retention catheter | 
| 09/21/1981 | EP0024431A4 Nonpulsating intravenous pump and disposable pump chamber. | 
| 09/17/1981 | WO1981002534A1 Automated cleaning system for dialyzers | 
| 09/17/1981 | WO1981002523A1 Wound drainage | 
| 09/15/1981 | US4289158 Suction control apparatus | 
| 09/15/1981 | CA1109000A1 Hollow filament bundle for diffusion device | 
| 09/15/1981 | CA1108957A1 Method and apparatus for controlling intravenous administration of fluid to a patient | 
| 09/09/1981 | EP0035405A2 Automated cleaning system for dialyzers and a method of cleaning dialyzers | 
| 09/09/1981 | EP0035266A1 A device for the transfer of one or more substances between a gas and a liquid | 
| 09/08/1981 | US4287889 Suction catheter having a non-stressed vacuum regulator | 
| 09/08/1981 | US4287819 Source of vacuum and device for maintaining a negative pressure in an enclosure | 
| 09/02/1981 | EP0034916A1 Compositions suitable for use in preparing dialysis solutions, and processes for producing such compositions | 
| 09/01/1981 | US4287059 Dialyzer apparatus in an artificial kidney system | 
| 09/01/1981 | US4286597 Blood compatible polymers and medical devices made therefrom containing dioctyladipate plasticizer | 
| 09/01/1981 | US4286590 Stactometric apparatus | 
| 09/01/1981 | CA1108282A1 Ultrasonic air and blood foam detector | 
| 09/01/1981 | CA1108108A1 Adsorbent for artificial organs | 
| 08/26/1981 | EP0034304A2 Method of immobilizing an enzyme in a bundle of cellulosic fibres for a fibre-bundle dialyzer for purifying blood | 
| 08/25/1981 | US4285464 Apparatus for separation of blood into components thereof | 
| 08/25/1981 | US4285341 Extracorporeal cannula apparatus with retractable intralumenal balloon and method for using same | 
| 08/25/1981 | CA1107657A1 Hollow fiber package body and its production | 
| 08/25/1981 | CA1107656A1 Hemodialysis membrane with included absorbent particles | 
| 08/25/1981 | CA1107598A1 Diffusion device for blood | 
| 08/25/1981 | CA1107467A1 Polycarbonate membranes for use in hemodialysis | 
| 08/20/1981 | WO1981002331A1 Peristaltic pump | 
| 08/18/1981 | US4284594 Method of manufacturing hollow fiber | 
| 08/18/1981 | US4284506 Polyurethanes | 
| 08/18/1981 | US4284502 Apparatus for treating uremic patients | 
| 08/18/1981 | US4284209 Device and method for collecting blood plasma | 
| 08/18/1981 | US4284073 Method and apparatus for pumping blood within a vessel | 
| 08/18/1981 | CA1107020A1 Cellulose acetate hollow fiber and method for making same | 
| 08/12/1981 | EP0033666A1 Peristaltic pump | 
| 08/11/1981 | US4283289 Blood filter for leukocytes | 
| 08/11/1981 | US4283284 For artificial kidneys | 
| 08/11/1981 | US4282872 Device for the pre-programmable infusion of liquids | 
| 08/11/1981 | CA1106718A1 Indwelling catheter | 
| 08/06/1981 | WO1981002218A1 Ion selective electrodes and calibration method | 
| 08/05/1981 | EP0033222A2 Dialysate supply circuit | 
| 08/05/1981 | EP0033080A2 Flexible tube system for dialysis | 
| 08/04/1981 | US4282180 Blood oxygenator | 
| 08/04/1981 | US4282099 Integral partitioned hemodialysis unit | 
| 08/04/1981 | CA1106124A1 Method for forming tubesheets on hollow fiber tows and forming hollow fiber bundle assemblies containing same | 
| 07/28/1981 | US4280981 Blood oxygenator | 
| 07/28/1981 | US4280498 Valved drain assembly for urostomy pouch | 
| 07/28/1981 | US4280495 Air emboli detection | 
| 07/28/1981 | CA1105797A1 Method and apparatus for collecting fluids | 
| 07/28/1981 | CA1105796A1 Method and apparatus for defibrination of blood | 
| 07/21/1981 | US4279846 Process for preparing semipermeable membrane having selective permeability | 
| 07/21/1981 | US4279678 Hollow fiber apparatus for the fractionation of fluid especially useful as an artificial kidney | 
| 07/21/1981 | CA1105560A1 Laser tunnelling device | 
| 07/15/1981 | EP0031850A1 Magnetically controlled drug infusion system. | 
| 07/14/1981 | US4278542 Method for manufacturing multi-layer hemodialyzers and improved multi-layer hemodialyzer obtained thereby | 
| 07/14/1981 | US4278092 Peritoneal catheter | 
| 07/14/1981 | US4278089 Wound drainage device | 
| 07/14/1981 | CA1104900A1 Blood access device | 
| 07/09/1981 | WO1981001800A1 Flow reversing mechanism for use in a dialysis machine | 
| 07/09/1981 | WO1981001794A1 System for demand-based administration of insulin | 
| 07/09/1981 | WO1981001793A1 Blood circuit and bubble traps | 
| 07/08/1981 | EP0031376A1 Peritoneal catheter | 
| 07/07/1981 | US4277706 Actuator for heart pump | 
| 07/07/1981 | US4276874 Elongatable balloon catheter | 
| 07/07/1981 | US4276687 Method of winding capillary fiber bundles | 
| 07/07/1981 | CA1104507A1 Proportioning dialysis machine for coil and parallel- flow dialyzers | 
| 07/01/1981 | EP0030949A1 Apparatus and method for introducing fluid into and removing fluid from a living subject | 
| 06/30/1981 | US4276175 Regeneratable peritoneal dialysis bag | 
| 06/30/1981 | US4276172 Cellulosic membrane for blood dialysis | 
| 06/30/1981 | US4276140 Ion exchanging, desalting | 
| 06/30/1981 | US4276004 Infusion pump | 
| 06/30/1981 | US4275732 Suction canister with membrane shut-off valve | 
| 06/30/1981 | US4275731 Suction canister with vortex flow deflector | 
| 06/30/1981 | US4275726 Apparatus for fluid balancing under sterile conditions | 
| 06/30/1981 | CA1104233A1 Blood pressure alarm system with malfunction protection circuitry | 
| 06/30/1981 | CA1104032A1 Integral hydraulic circuit for hemodialysis apparatus | 
| 06/25/1981 | WO1981001728A1 Miniature infusion pump | 
| 06/25/1981 | WO1981001658A1 Wearable insulin infusion system having a tubular reservoir and a positive displacement metering means | 
| 06/25/1981 | WO1981001654A1 Luer lock connection device | 
| 06/24/1981 | EP0030760A1 Device for regulating the flow of blood delivered by an extracorporeal circulation system, means for detecting a quantity of liquid and inductive element used in this device | 
| 06/23/1981 | US4274964 Multilayer, folded flattened membrane hose alternating with netting | 
| 06/23/1981 | US4274411 Fluid operated ophthalmic irrigation and aspiration device | 
| 06/23/1981 | CA1103589A1 Hemodialysis ultrafiltration system with controlled liquid extraction from blood | 
| 06/23/1981 | CA1103546A1 Membrane diffusion system | 
| 06/17/1981 | EP0030358A2 Apparatus for reducing the functioning lymphocyte population in blood | 
| 06/16/1981 | US4273126 Attachment device for tracheal aspirator |