Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 4838873 | Apparatus for introducing liquids and/or elongated elements into a body cavity The apparatus for medical purposes comprises a sleeve-type catheter hub (10) having a cylindrical longitudinal channel (11) and a flexible catheter capillary (24) which, through an orifice portion (11a) of the longitudinal channel (11) extends into an exp... | 06/13/1989 |
| 4819684 | Injection shut-off valve An injection shut-off valve for insertion into an infusion line comprises a housing with connections for inlet and outlet lines. The housing includes an orifice for introducing an injection syringe. A valve is installed in the housing and includes a defor... | 04/11/1989 |
| 4816162 | Process and device for the selective separation of pathological and/or toxic species or plasma A process and device for the selective separation of pathological and/or toxic species from blood, plasma or serum wherein a plasma or serum fraction is passed through a container containing one or more filter candles of decreasing means pore diameter and... | 03/28/1989 |
| 4816446 | Heparin derivatives The invention comprises heparin derivative compounds which possess a low density lipoprotein lowering action without a significant anticoagulent effect, and are therefore useful in the treatment of disturbances of fat metabolism, especially hyperlipidemia... | 03/28/1989 |
| 4790330 | Blood withdrawal device with safety valve and cylindrical container The novel safety blood withdrawal device includes as principal components a syringe body (SK) with a cannula holder, a collecting container (AB) which can be pressed into the syringe body, and a continuous tube (R). The collecting container is present in the f... | 12/13/1988 |
| 4784659 | Vessel and prosthesis impregnated with diisocyanate crosslinked gelatin The invention relates to vessel prostheses formed from a porous vascular prosthesis impregnated with diisocyanate crosslinked gelatin for sealing the pores.... | 11/15/1988 |
| 4759752 | Catheter A catheter having a proximal end provided with a nonreturn valve consisting of the catheter tubing end and of a rigid insert body whose rearward end is fixed in the catheter tubing. Bypass channels extend passed the end. The front end of the insert body i... | 07/26/1988 |
| 4758336 | Dialytic apparatus A dialytic apparatus for single-needle dialysis comprises a first pump in the artery conduit, which first pump in the first phase conveys blood from the patient into the expansion chamber while the vein conduit is shut off. At the same time, the second pu... | 07/19/1988 |
| 4737150 | Two-cannula syringe A two-cannula syringe for the aspiration and for the injection of medicaments in the form of liquids. The syringe includes a first cannula for the aspiration of the liquid into a cylinder of the syringe and for the possible mixing and/or degassing of the ... | 04/12/1988 |
| 4735727 | Dialysis equipment The dialysis equipment has a dialysate path connectable to a dialysate source 1, and contains a feed pump 6, a dialyzer 10, and a controlled suction pump 13. During the operative phase, this dialysate path is traversed by the dialysate with a constant neg... | 04/05/1988 |
| 4708802 | Apparatus for hemodiafiltration An apparatus for hemodiafiltration that maintains the blood concentration of the patient relatively constant. A pump is connected to a branch off the external flow path of the dialysator which pumps fluid to the circulation system of the patient to compen... | 11/24/1987 |
| 4698387 | Allosteric conjugates of hemoglobin and use as blood substitutes The invention relates to an allosterically active conjugate composition comprising one or more hemoglobin tetramers and one or more adducts of a physiologically safe macromolecular agent covalently linked to one or more ligands, such that the adduct is bo... | 10/06/1987 |
| 4649114 | Oxygen permeable membrane in fermenter for oxygen enrichment of broth The growth of animal cells in a fermenter is promoted by enriching the liquid nutrient medium or broth with oxygen diffused into the liquid through a permeable membrane, such as one made of silicone rubber or polytetrafluoroethylene (Teflon). Superior cel... | 03/10/1987 |
| 4648974 | Process for the selective extracorporeal separation of blood constituents The invention relates to processes and apparatus employing filter candles with an effective filter surface area of 0.2 to 2 square meters and a mean pore diameter of 0.2 to 2 micron in sterilizable cylindrical housings for the selective extracorporeal sep... | 03/10/1987 |
| 4639423 | Apparatus for the production of biocatalyst beads An apparatus for the production of biocatalyst beads comprises an immobilization vessel (10) which is provided at its lower end with discharge pipes (23) which extend through a pressure chamber (25) in which a gas pressure prevails. The pressure chamber (... | 01/27/1987 |
| 4624658 | Distensible syringe and sensor for injectors A syringe for an injector utilizes a cylinder having a deformable wall portion in the outlet end. Excessive pressure within the syringe cylinder, or contact with the syringe piston at the end of its stroke distends the deformable wall portion of the cylin... | 11/25/1986 |
| 4614590 | Dialysis apparatus and method for its control A dialysis apparatus utilizes an expansion chamber in parallel with a pump from which the chamber receives blood via a valve. During the return flow phase the pump rotates in the same direction; but, the valve is closed and a valve at the chamber outlet i... | 09/30/1986 |
| 4601703 | Injector for an infusion or transfusion system An injector for infusion or transfusion systems utilizes a housing having a duct extending longitudinally therethrough. The inner surface of a penetrable membrane covers an end of the duct, with the edge of the surface abutting an annular shoulder of the ... | 07/22/1986 |
| 4592498 | Surgical stapler A stapler, particularly for suturing skin wounds or incisions, is disclosed which comprises a channel in which a driver is advanced by a slide in the direction of an anvil surface. A staple magazine which extends substantially parallel with the driver inc... | 06/03/1986 |
| 4588461 | Process for producing a vessel prosthesis To produce a vessel prosthesis, a hose (12) is wrapped with a reinforcing thread (13) to avoid bending and clogging of the vessel prosthesis. The reinforcing thread (13) is wound substantially tensionless on the soft hose (12) thus prohibiting wavy deform... | 05/13/1986 |
| 4579127 | Mandrel for hose type catheters and body probes A mandrel for use with a catheter or body probe comprises at least four outer wires which are spirally wound with a high pitch around a straight wire core. The outer wires are covered by a coating of plastic of uniform thickness wherein the coating is suf... | 04/01/1986 |
| 4560979 | Method for triggering an alarm in an infusion syringe An infusion syringe pump for forcing an infusion liquid out of the syringe comprises a sensor which is actuated at a certain displacement of a movable piston in the syringe. The residual infusion time before the syringe is completely empty is calculated f... | 12/24/1985 |
| 4525166 | Rolled flexible medical suction drainage device A suction drainage device is disclosed which comprises a receptacle communicated with a body cavity via an inlet tube. The receptacle is formed as a bellows, flat receptacle, foil or sheet bag, or foil or sheet tube and the like which can be folded or rol... | 06/25/1985 |
| 4523695 | Surgical stapler A stapler, particularly for suturing skin wounds or incisions, is disclosed which comprises a channel in which a driver is advanced by a slide in the direction of an anvil surface. A staple magazine which extends substantially parallel with the driver inc... | 06/18/1985 |
| 4505273 | Surgical staple A surgical staple is disclosed comprising an arcuate central region which can be flattened by a stapling tool. Straight legs extend obliquely upwardly from the central region to which are connected downwardly extending side portions. The side portions are... | 03/19/1985 |
| 4504268 | Stiffening core for a catheter tube A stiffening core of plastic for the gap-free filling of the lumen (i.e., bore) of a catheter tube comprises at least one resilient multifilament strand of high tensile strength which is embedded in a plastic rod. Such a stiffening core contributes to imp... | 03/12/1985 |
| 4483666 | Hose pump for medical uses A hose pump comprises a housing in which a drive shaft is mounted. The shaft is provided with an obliquely extending shaft piece on which a swash plate is mounted. The swash plate end face presses against a hose which lies in an annular groove located in ... | 11/20/1984 |
| 4475907 | Body secretion collecting device with improved liquid conduit connection between container and holder A secretion collecting device consists of a rigid holder, from which a bag is suspended. A secretion drainage tube running from the patient is connected to a pipe on the holder. The bag has a tube one end of which enters the interior space of the bag and ... | 10/09/1984 |
| 4474630 | Method for the production of synthetic blood vessel prostheses A blood vessel prosthesis and a method of producing such a prosthesis in which single fibers having a sticky surface are sprayed onto a rod to form a tube from which the rod is subsequently removed, the fibers being formed in at least one layer, the fiber... | 10/02/1984 |
| 4465474 | Injector for medical uses having an improved automatic switch-off system An injector for medical uses comprises a housing (30) on which a first holder (65) for holding the front end of a syringe (13) is movably mounted. A slide (32) is movable relative to the housing (30). A second holder (66) for attachment of the syringe pis... | 08/14/1984 |
| 4465475 | Injector for medical uses An injector for squeezing liquid from a medical syringe is disclosed. On a housing (10), a first holder is (11) fastened. A first end of a syringe cylinder is joined to the first holder (11). The syringe piston (15) is joined to a second holder (13). The ... | 08/14/1984 |
| 4405163 | Coupling for medical apparatus tubes A coupling for connecting the ends of medical apparatus tubes. The coupling has male and female conical mating elements on first and second end pieces. Each end piece is adapted to receive the end of a tube. The end pieces are locked together to prevent u... | 09/20/1983 |
| 4402685 | Dividable catheter A dividable short catheter tube made of a modifying polymer intermixed with, or inserted into, a base polymer. The modifying polymer is usually one which is incompatible with the base polymer. The dividable short catheter tube is readily tearable longitudinall... | 09/06/1983 |
| 4357274 | Process for the manufacture of sclero protein transplants with increased biological stability In a process for the manufacture of sclero protein transplants in which raw sclero protein from humans or animals is watered, treated with H2 O2, degreased, rinsed, dried and sterilized, the improvement in which the sclero protein, a... | 11/02/1982 |
| 4311136 | Catheter connecting head with at least one duct in a base member A catheter connecting head with at least one duct in a base member for the connection of an infusion system, such as a catheter or the like and for the introduction of a puncture cannula, is provided with a closure member mounted for movement between a fi... | 01/19/1982 |
| 4300554 | Portable infusion apparatus Disclosed is a portable continuous infusion apparatus for administering an injectable liquid to a patient. The apparatus expells the contents of a syringe on a time controlled basis. It employs two separate springs, with one spring used to power a clockwo... | 11/17/1981 |
| 4291706 | Valve for closing a plurality of container outlets simultaneously A valve for simultaneously closing the outlets of a plurality of containers in communication with the valve, and an outlet from the valve, comprising a valve housing having a plurality of inlet openings corresponding to the number of container outlets to ... | 09/29/1981 |
| 4291698 | Button for surgical applications A button for surgical applications comprising a disk having a slot which extends to a passage for guiding a thread therethrough within the circumference of the disk, said passage being sealed by a clamping device for clamping the thread firmly in the pass... | 09/29/1981 |
| 4265928 | Anti-thrombogenic retentive catheter An anti-thrombogenic retentive catheter with a negatively-charged surface is manufactured by providing it with a negatively-charged coating. The coating can be applied by immersing the catheter, at least once, into pyridine or a toluol/tetrahydrofuran sol... | 05/05/1981 |
| 4265118 | Urine collecting and measuring instrument A urine measuring instrument for receiving, collecting and measuring urine from a catheterized patient comprising a transparent, graduated container with an upper inlet and a lower outlet to which a urine bag can be connected, said container being subdivi... | 05/05/1981 |
