Patents Assigned to Intermedicat GmbH
  • Patent number: 4579127
    Abstract: 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 sufficiently thin so that the contours of the outer wires are preserved on the outer side of the mandrel. Each turn of the outer wires has a large component in longitudinal direction, and the mandrel is easily displaceable within the catheter.
    Type: Grant
    Filed: July 27, 1984
    Date of Patent: April 1, 1986
    Assignee: Intermedicat GmbH
    Inventor: Claus Haacke
  • Patent number: 4560979
    Abstract: 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 from the residual volume of liquid left in the infusion syringe upon activation of the sensor, and from the infusion rate. At a given time before expiration of the residual infusion time, an alarm is produced by an alarm device. The alarm is thus always given independently of the particular infusion rate of the syringe and at a predetermined time (e.g. three minutes) before the end of infusion.
    Type: Grant
    Filed: March 20, 1984
    Date of Patent: December 24, 1985
    Assignee: Intermedicat GmbH
    Inventor: Gerhard Rosskopf
  • Patent number: 4525166
    Abstract: 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 rolled up. A flexible check valve in the form of a foil or sheet valve, or flutter valve, is disposed inside the receptacle. The inlet tube is provided on a side of one edge of the receptacle so that the receptacle can be rolled up over a long roll path without interference from the valve. The device can be manufactured at low cost.
    Type: Grant
    Filed: November 18, 1982
    Date of Patent: June 25, 1985
    Assignee: Intermedicat GmbH
    Inventor: Roland-Yves J. Leclerc
  • Patent number: 4523695
    Abstract: 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 includes a curved section which opens into the channel to deliver staples into the channel for engagement by the driver. During forward displacement of the driver, a projection on the driver presses a leaf spring to which the anvil surface is connected. The anvil surface at the forward end of the leaf spring is thereby brought into its operating position and is automatically moved back into its retracted position upon release of the spring after the driver is retracted. The curved section in the staple magazine enables the stapler to have a slim profile which does not obscure the working area during a stapling operation. After completion of a stapling operation, the anvil surface is automatically retracted from a closed, implanted staple.
    Type: Grant
    Filed: February 9, 1983
    Date of Patent: June 18, 1985
    Assignee: Intermedicat GmbH
    Inventors: Karl Braun, Jurgen Fetzer
  • Patent number: 4505273
    Abstract: 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 curved substantially in the form of an arc of a circle having a center at the center for the central region. When the central region is flattened, the side portions move about an arc of a circle so that automatic puncture channels are produced. Tearing of tissue is thereby prevented.
    Type: Grant
    Filed: February 9, 1983
    Date of Patent: March 19, 1985
    Assignee: Intermedicat GmbH
    Inventors: Karl Braun, Jurgen Fetzer
  • Patent number: 4483666
    Abstract: 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 the underside of the housing cover. The swash plate does not substantially rotate relative to the housing or to the hose and therefore exerts substantially no shear on the hose.
    Type: Grant
    Filed: July 19, 1983
    Date of Patent: November 20, 1984
    Assignee: Intermedicat GmbH
    Inventors: Ernst W. Schubert, Josef Dorfler
  • Patent number: 4475907
    Abstract: 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 the other end of which projects from the bag and is pushed telescopically onto the lower end of the pipe. The bag tube can slide with respect to the pipe so that the connection adjusts to shifts and deformations of the bag without becoming loose or separating.
    Type: Grant
    Filed: April 28, 1982
    Date of Patent: October 9, 1984
    Assignee: Intermedicat GmbH
    Inventor: Karl-Friedrich Voges
  • Patent number: 4474630
    Abstract: 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 fibers being applied to the rod in one or more selected directions and, in one form, the fibers, when stuck together, form a tube into which connective tissue cannot grow, the prosthesis having properties such as radial elastic expansibility, non-kinking and the like adaptable to those of natural arteries and views the tube may also be provided with an inner layer of flexible foil for impermeability or an outer coating to provide a smooth outer surface.
    Type: Grant
    Filed: October 18, 1982
    Date of Patent: October 2, 1984
    Assignee: Intermedicat GmbH
    Inventors: Heinrich Planck, Peter Ehrler
  • Patent number: 4465475
    Abstract: 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 second holder (13) is fastened to a slide (12) which is displaceable relative to the housing (10). The drive of the slide (12) is effected by way of a pipe (26) and a ball gear (27, 28) on a spindle (28). The end of the spindle (28) is connected with the slide (12) through a free-wheeling mechanism. The spindle (28) can be rotated by hand with a rotary button (30). When the free-wheeling mechanism is released, the slide (12) can be pulled linearly into a desired position. The ball gear drive mechanism (27, 28) ensures that when the motor is turned on, the slide (12) is driven at once without first requiring an engagement of a tooth system or a screwthread.
    Type: Grant
    Filed: December 8, 1982
    Date of Patent: August 14, 1984
    Assignee: Intermedicat GmbH
    Inventors: Robert Mardorf, Sigfried Hessberg
  • Patent number: 4465474
    Abstract: 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 piston (14) is mounted to the slide (32). When the force exerted by the syringe cylinder (12) on the first holder (65) reaches an overload condition, the first holder (65) moves counter to the action of a spring (58). An actuating element (62) connected to first holder (65) then actuates a switch (48) whereby the motor drive of the slide (32) is turned off.
    Type: Grant
    Filed: December 17, 1982
    Date of Patent: August 14, 1984
    Assignee: Intermedicat GmbH
    Inventors: Robert Mardorf, Sigfried Hebberg
  • Patent number: 4451256
    Abstract: In order to keep the opening for inserting a catheter into a blood vessel as small as possible, a catheter insertion tube is used which coaxially surrounds the puncturing canula and consists, at least in a circumferential area and/or at least along a portion of its length, of one or several dilatable or expandable areas permitting enlargement of its internal diameter. The diameter of the catheter insertion tube, at the front end where it is inserted into the blood vessel, is approximately equal or smaller than the outer diameter of the catheter. The catheter insertion tube is expandable at least over the front or forward portion of its length by the catheter. The catheter insertion tube i removable from the puncture over the catheter while the catheter is advanced into the puncture and is tighty sealed by the catheter because the catheter has an external diameter equal to or larger than the puncture previously occupied by the insertion tube.
    Type: Grant
    Filed: April 28, 1982
    Date of Patent: May 29, 1984
    Assignee: Intermedicat GmbH
    Inventors: Andreas Weikl, Max Hubmann
  • Patent number: 4405163
    Abstract: 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 unintentional separation. Locking is achieved by at least one finger extending from one end piece to the other end piece. The finger, in addition to its locking function, resists tension when tensile stress is applied to a coupled tube.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: September 20, 1983
    Assignee: Intermedicat GmbH
    Inventors: Karl-Friedrich Voges, Claus Haacke, Peter Heise
  • Patent number: 4402685
    Abstract: 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 longitudinally so that it can be removed from around a flexible catheter after the flexible catheter has been guided into a patient by means of the short catheter previously positioned in a body puncture.The tube can be extruded from a mixture of the two polymers or it can be extruded with modifying polymer longitudinal strips in walls of the base polymer.
    Type: Grant
    Filed: June 24, 1980
    Date of Patent: September 6, 1983
    Assignee: Intermedicat GmbH
    Inventors: Wolfgang Buhler, Franz W. Brunner, Bodo Schacht
  • Patent number: 4357274
    Abstract: In a process for the manufacture of sclero protein transplants in which raw sclero protein from humans or animals is watered, treated with H.sub.2 O.sub.2, degreased, rinsed, dried and sterilized, the improvement in which the sclero protein, after rinsing and prior to drying, is treated with glycerin or polyethylene glycol.
    Type: Grant
    Filed: August 6, 1981
    Date of Patent: November 2, 1982
    Assignee: Intermedicat GmbH
    Inventor: Heinz-Helmut Werner
  • Patent number: 4311136
    Abstract: 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 first position opening the cannula introduction duct and a second position blocking said duct. The connecting head is provided with a device for retaining the closure member in the first position until the puncture cannula is withdrawn after which the closure element is automatically shifted into its second position. Once the closure member is in its second position blocking the cannula insertion duct, a locking arrangement retains the closure member in this position so that reintroduction of a puncture cannula into said insertion duct is not possible. In accordance with preferred embodiments, the closure member can be constructed as a lever member pivotally mounted to the base member or as a disc mounted upon the base member in a rotatable manner.
    Type: Grant
    Filed: October 22, 1979
    Date of Patent: January 19, 1982
    Assignee: Intermedicat GmbH
    Inventors: Andreas Weikl, Max Hubmann
  • Patent number: 4300554
    Abstract: 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 clockwork and another spring to power a gear rack to advance the syringe plunger or piston. Opening and shutting the apparatus cover automatically winds both springs simultaneously. A safety prevents closing the cover unless the springs are wound. Advancement of the gear rack is adjustable by a control which acts on an escapement lever which regulates an escape wheel. The control moves the escapement lever axially so it can engage a different number of wings on the escape wheel, thereby regulating the incremental advance of the gear rack acting on the syringe plunger.
    Type: Grant
    Filed: February 14, 1980
    Date of Patent: November 17, 1981
    Assignee: Intermedicat GmbH
    Inventors: Sigfried Hessberg, Werner Dold
  • Patent number: 4291698
    Abstract: 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 passage. The clamping device includes a disk segment movable parallel with the disk over the slot and passage to a latched position where its inner marginal part is past the passage thereby bending the thread and holding it by friction and compression.
    Type: Grant
    Filed: November 28, 1979
    Date of Patent: September 29, 1981
    Assignee: Intermedicat GmbH
    Inventors: Heinz Fuchs, deceased, Hans-Friedrich Muller, Hildegard Hecht
  • Patent number: 4291706
    Abstract: 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 be sealed, and at least one outlet; a sealing element adjustably positioned in the valve housing for simultaneously sealing the valve housing inlets and outlet so as to seal off liquid communication between the containers, and between the containers and the exterior; and an arm connected to the sealing element for actuation of the sealing element exterior of the valve housing.
    Type: Grant
    Filed: September 12, 1979
    Date of Patent: September 29, 1981
    Assignee: Intermedicat GmbH
    Inventors: Karl-Friedrich Voges, Gerd Herlitze
  • Patent number: 4265928
    Abstract: 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 solution of a copolymerizate of ethylene with acrylic acid, or esters or salts of the copolymerizate and, after the last immersion, by drying the coating until no solvent is detectable.
    Type: Grant
    Filed: September 26, 1979
    Date of Patent: May 5, 1981
    Assignee: Intermedicat GmbH
    Inventor: Bernd Braun
  • Patent number: 4265118
    Abstract: 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 subdivided into several side-by-side vertical chambers into the first of which the inlet communicates, all the chambers being open to one another at the top and separated from one another at the bottom by a multi-path valve, all the chambers being in communication with the container outlet through said valve, and each chamber having a scale thereon.
    Type: Grant
    Filed: July 27, 1979
    Date of Patent: May 5, 1981
    Assignee: Intermedicat GmbH
    Inventor: Karl-Heinz Griesel