Suction or pumping devices for medical purposes Devices for carrying-off, for treatment of, or for carrying-over, body-liquids Drainage systems

AHUMAN NECESSITIES A61Medical science A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR

A61M1/00Suction or pumping devices for medical purposes Devices for carrying-off, for treatment of, or for carrying-over, body-liquids Drainage systems

A61M1/0001Containers for suction drainage A61M1/0003Self-contained vacuum aspirators A61M1/0005with means for emptying the suction container A61M1/0007Emptying the suction container without interrupting suction A61M1/0009incorporating a movable wall to create suction A61M1/0011Drainage containers incorporating a flexible member creating suction A61M1/0013Two- or three-bottle systems for underwater drainage A61M1/0015Mechanical means for preventing flexible containers from collapsing when vacuum is applied inside A61M1/0017Bag or liner in a rigid container, with suction applied to both A61M1/0019Drainage containers not being adapted for subjection to vacuum A61M1/0021Gravity drainage systems A61M1/0023Suction drainage systems A61M1/0025comprising sensors or indicators for physical values A61M1/0027Visual indicating means for vacuum pressure A61M1/0029Visual indicating means for flow A61M1/0031Suction control A61M1/0033by changing the size of a vent A61M1/0035by changing the section of the line A61M1/0037Intermittent or pulsating suction A61M1/0039Handpieces A61M1/0041with means for varying suction manually A61M1/0043by changing the section of the line A61M1/0045by deformation of the fluid passage A61M1/0047by changing the size of a vent A61M1/0049Means preventing overflow or contamination of the pumping systems A61M1/005using valves with freely moving parts A61M1/0052by filtering, sterilising or disinfecting the exhaust air A61M1/0054by heat A61M1/0056Filters for solid matter A61M1/0058Suction-irrigation systems A61M1/006Determination of loss or gain of body fluids due to suction-irrigation A61M1/0062operating alternately A61M1/0064Handpieces therefor A61M1/0066Suction pumps A61M1/0068Piston pumps A61M1/007the barrel serving as aspiration container A61M1/0072Membrane pumps A61M1/0074by vacuum created above a liquid flowing from a closed container A61M1/0076using Laval or Venturi jet pumps A61M1/0078Tube strippers A61M1/008Drainage tubes; Aspiration tips A61M1/0082rotating A61M1/0084With gas or fluid supply means A61M1/0086Connectors therefor A61M1/0088with a seal A61M1/009having pumping means on suction site A61M1/0092having venting means on or near the tip A61M1/0094having means for processing the drained fluid A61M1/0096Draining devices provided with means for releasing antimicrobial or gelation agents in the drained fluid A61M1/0098Draining devices provided with means for filtering out the harmless water content before discarding the drainage container A61M1/02Blood transfusion apparatus A61M1/0204Blood stirrers A61M1/0209Multiple bag systems for separating or storing blood components A61M1/0213with isolated sections of the tube used as additive reservoirs A61M1/0218with filters A61M1/0222and filter bypass A61M1/0227and means for securing the filter against damage A61M1/0231with gas separating means A61M1/0236with sampling means A61M1/024Means for controlling the quantity of transfused blood A61M1/0245combined with blood container shaking means A61M1/025Means for agitating or shaking blood containers A61M1/0254with a support plate moving only in one plane A61M1/0259Apparatus for treatment of blood or blood constituents not otherwise provided for A61M1/0272Apparatus for treatment of blood or blood constituents prior to or for conservation A61M1/0277Frames constraining or supporting bags A61M1/0281Apparatus for treatment of blood or blood constituents prior to transfusion A61M1/0286Handling a large number of blood product units A61M1/029Separating blood components present in distinct layers in a container, not otherwise provided for A61M1/0295whereby the blood container and a solution container are compressed simultaneously by the same means A61M1/04Artificial pneumothorax apparatus A61M1/06Milking pumps A61M1/062Pump accessories A61M1/064Suction cups A61M1/066Inserts therefor A61M1/068having means for simultaneous feeding A61M1/08Cupping glasses A61M1/10Blood pumps Artificial hearts Devices for mechanical circulatory assistance A61M1/1001General aspects of blood pumps irrespective of pump type A61M1/1003skeletal muscle-powered A61M1/1005with means for making a blood flow pulsatile A61M1/1006Blood pumps incorporated within another functional device A61M1/1008Tubes; Connections therefor A61M1/101Non-positive displacement pumps A61M1/1012Constructional features thereof A61M1/1013Types of bearings A61M1/1015Magnetic bearings A61M1/1017Hydrodynamic bearings A61M1/1018with occluders preventing backflow A61M1/102having a purge fluid supply A61M1/1022using filtered blood as purge fluid A61M1/1024having a collapsible rotor A61M1/1025Details on blood sealings between rotational parts A61M1/1029Drive systems therefor A61M1/1031using a motor with canned rotor A61M1/1032with hydraulic or pneumatic driving means A61M1/1034using rotating cables for driving A61M1/1036using rotating magnets for driving A61M1/1037Pumps having flexible elements A61M1/1039Peristaltic pumps A61M1/1041Linear A61M1/1043Constructional features thereof A61M1/1044Compliance chamber containing a gas or liquid other than blood to compensate volume variations of a blood chamber A61M1/1046Drive systems therefor A61M1/1048characterised by way of converting the movement A61M1/1049with means converting the rotation of a motor into a translational movement of the flexible element A61M1/1051the axis of both movements being parallel A61M1/1053using non-rotary electrical means A61M1/1055Electromagnetic means A61M1/1056Thermo-electric means A61M1/1058Piezoelectric means A61M1/106using hydraulic or pneumatic means A61M1/1062with application of vacuum at the blood pump A61M1/1063Diastole or systole switching by stopping or reversing a hydraulic or pneumatic pump operating at a much higher cyclical speed than the heart rate A61M1/1065Diastole or systole switching by valve means between the blood pump and the hydraulic or pneumatic energy source A61M1/1067using a blood vessel as flexible element A61M1/1068using the heart as flexible element A61M1/107Pulsating membrane pumps without valves A61M1/1072Intra-arterial balloon pumps A61M1/1074Intra-ventricular balloon pumps A61M1/1075the pump membrane acting as inlet valve A61M1/1081Piston pumps A61M1/1082High-frequency pumps A61M1/1084Venturi or jet pumps A61M1/1086Regulating or controlling systems therefor A61M1/1087Active valves for blood pumps or artificial hearts A61M1/1089where the valve is formed by a flexible tube element which is clamped for restricting the flow A61M1/1096Passive valves for blood pumps or artificial hearts A61M1/1098Valves having flexible or resilient parts A61M1/12implantable into the body A61M1/122Heart assist devices A61M1/125intravascular A61M1/127Energy supply devices, converters therefor A61M1/14Dialysis systems Artificial kidneys Blood oxygenators; Reciprocating systems for treatment of body fluids A61M1/16with membranes A61M1/1601Control or regulation A61M1/1603Regulation parameters A61M1/1605Physical characteristics of the dialysate fluid A61M1/1607before use A61M1/1609after use A61M1/1611Weight of the patient A61M1/1613Profiling or modelling A61M1/1615using measurements made at different flow rates A61M1/1617using measurements made during a temporary variation of a characteristic of the fresh dialysis fluid A61M1/1619Sampled collection of used dialysate A61M1/1621Constructional aspects thereof A61M1/1623Disposition of membranes A61M1/1625Dialyser of the outside perfusion type A61M1/1627Dialyser of the inside perfusion type A61M1/1629with integral heat exchanger A61M1/1631having non-tubular membranes A61M1/1633with more than one dialyzer unit A61M1/1635with volume chamber balancing devices between used and fresh dialysis fluid A61M1/1637containing the whole volume of dialysis fluid used during a treatment session A61M1/1639linked by membranes A61M1/1641linked by pistons A61M1/1643with weighing of fresh and used dialysis fluid A61M1/1645with mechanically linked peristaltic dialysis fluid pumps one upstream, the other one downstream of the dialyser A61M1/1647with flow rate measurement of the dialysis fluid, upstream and downstream of the dialyser A61M1/1649with pulsatile dialysis fluid flow A61M1/165with a dialyser bypass on the dialysis fluid line A61M1/1652Holding or locking systems for the membrane unit A61M1/1654Dialysates therefor A61M1/1656Apparatus for preparing dialysates A61M1/1658Degasification A61M1/166Heating A61M1/1662with heat exchange between fresh and used dialysate A61M1/1664with temperature control A61M1/1666by dissolving solids A61M1/1668Details of containers A61M1/167Flexible packaging for solid concentrates A61M1/1672using membrane filters A61M1/1674using UV radiation sources for sterilising the dialysate A61M1/1676containing proteins A61M1/1678intracorporal A61M1/168Sterilisation or cleaning before or after use A61M1/1682both machine and membrane module A61M1/1684Checking the module characteristics before reuse A61M1/1686by heat A61M1/1688with recirculation of the sterilising fluid A61M1/169using chemical substances A61M1/1692Detection of blood traces in dialysate A61M1/1694with recirculating dialysing liquid A61M1/1696with dialysate regeneration A61M1/1698Blood oxygenators with or without heat-exchangers A61M1/26and internal elements which are moving A61M1/262rotating A61M1/265inducing TAYLOR vortices A61M1/267used for pumping A61M1/28Peritoneal dialysis; Other peritoneal treatment A61M1/281Instillation other than by gravity A61M1/282Operational modes A61M1/284Continuous flow peritoneal dialysis [CFPD] A61M1/285Catheters therefor A61M1/287Dialysates therefor A61M1/288Priming A61M1/30Reciprocating systems, alternately withdrawing blood from and returning it to the patient A61M1/301Details A61M1/302having a reservoir for withdrawn untreated blood A61M1/303having a reservoir for treated blood to be returned A61M1/304Treatment chamber used as reservoir A61M1/305Control of inversion point between collection and re-infusion phase A61M1/306Pressure control A61M1/307Time control A61M1/308Volume control A61M1/309with trans-membrane pressure [TMP] increasing substantially continuously during arterial phase A61M1/32Oxygenators without membranes A61M1/322Antifoam; Defoaming A61M1/325Surfactant coating; Improving wettability A61M1/327using catalytic production of oxygen A61M1/34Filtering material out of the blood by passing it through a membrane A61M1/3403Regulation parameters A61M1/3406Physical characteristics of the filtrate A61M1/341by measuring the filtrate rate, volume A61M1/3413Diafiltration A61M1/3417using distinct filters for dialysis and ultra-filtration A61M1/342Adding solutions to the blood A61M1/3424Substitution fluid path A61M1/3427back through the membrane A61M1/3431upstream the filter A61M1/3434with pre-dilution and post-dilution A61M1/3437downstream the filter A61M1/3441Substitution rate control as a function of the ultrafiltration rate A61M1/3444in which the collected ultra-filtrate expels an equal volume of substitution fluid from a reservoir A61M1/3448by mechanical linked pumps in both ultra-filtrate and substitution flow line A61M1/3451the difference in weight between both ultra-filtrate and substitution reservoir being used as control signal A61M1/3455Substitution fluids A61M1/3458having electrolytes not present in the dialysate A61M1/3462Circuits for the preparation thereof A61M1/3465using dialysate as substitution fluid A61M1/3468using treated filtrate as substitution fluid A61M1/3472with treatment of the filtrate A61M1/3475with filtrate treatment agent in the same enclosure as the membrane A61M1/3479by dialyzing the filtrate A61M1/3482by filtrating the filtrate using another cross-flow filter A61M1/3486Biological, chemical treatment A61M1/3489by biological cells A61M1/3493using treatment agents in suspension A61M1/3496Plasmapheresis; Leucopheresis; Lymphopheresis A61M1/36Other treatment of blood in a by-pass of the natural circulatory system A61M1/3601Extra-corporeal circuits in which the blood fluid passes more than once through the treatment unit A61M1/3603in the same direction A61M1/3604in opposite directions A61M1/3606Arrangements for blood-volume reduction of extra-corporeal circuits A61M1/3607Regulation parameters A61M1/3609Physical characteristics of the blood A61M1/361before treatment A61M1/3612after treatment A61M1/3613Reperfusion A61M1/3615Cleaning blood contaminated by local chemotherapy of a body part temporarily isolated from the blood circuit A61M1/3616Batch-type treatment A61M1/3618Magnetic separation A61M1/362changing physical properties of target cells by binding them to added particles to facilitate their subsequent separation from other cells A61M1/3621Extra-corporeal blood circuits A61M1/3624Level detectors; Level control A61M1/3626Gas bubble detectors A61M1/3627Degassing devices; Buffer reservoirs; Drip chambers; Blood filters A61M1/3629degassing by changing pump speed A61M1/363Degassing by using vibrations A61M1/3632Combined venous-cardiotomy reservoirs A61M1/3633Blood component filters A61M1/3635Constructional details A61M1/3636having a flexible housing A61M1/3638with a vapour trap A61M1/3639Blood pressure control, pressure transducers specially adapted therefor A61M1/3641Pressure isolators A61M1/3643Priming, rinsing before or after use A61M1/3644Mode of operation A61M1/3646Expelling the residual body fluid after use A61M1/3647with recirculation of the priming solution A61M1/3649using dialysate as priming or rinsing liquid A61M1/365through membranes A61M1/3652using gas A61M1/3653Interfaces between patient blood circulation and extra-corporal blood circuit A61M1/3655Arterio-venous shunts, fistulae A61M1/3656Monitoring patency or flow at connection sites; Detecting disconnections A61M1/3658Indicating the amount of purified blood recirculating in the fistula or shunt A61M1/3659Cannulae pertaining to extracorporeal circulation A61M1/3661for haemodialysis A61M1/3663Flow rate transducers; Flow integrators A61M1/3664for preparing cardioplegia solutions A61M1/3666Cardiac or cardiopulmonary bypass A61M1/3667with assisted venous return A61M1/3669Electrical impedance measurement of body fluids; transducers specially adapted therefor A61M1/367Circuit parts not covered by the preceeding subgroups of group A61M1/3621 A61M1/3672Means preventing coagulation A61M1/3673Anticoagulant coating A61M1/3675Deactivation A61M1/3676by interposing a liquid layer between blood and air A61M1/3678Separation of cells using wave pressure; Manipulation of individual corpuscles A61M1/3679by absorption A61M1/3681by irradiation A61M1/3683using photoactive agents A61M1/3686by removing photoactive agents after irradiation A61M1/3687Chemical treatment A61M1/3689by biological cells A61M1/369Temperature treatment A61M1/3692Washing or rinsing blood or blood constituents A61M1/3693using separation based on different densities of components A61M1/3695with sedimentation by gravity A61M1/3696with means for adding or withdrawing liquid substances during the centrifugation A61M1/3698Expressing processed fluid out from the turning rotor using another fluid compressing the treatment chamber; Variable volume rotors A61M1/38Removing constituents from donor blood and storing or returning remainder to body A61M1/382Optimization of blood component yield A61M1/385taking into account of the patient characteristics A61M1/387taking into account of the needs or inventory