Patents by Inventor Bernd Zierenberg

Bernd Zierenberg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20050244314
    Abstract: A method for crystallizing a substance, especially an inhalable medicament, comprising the following steps: (a) dissolving said substance in a solvent, to produce a solution of said substance, (b) producing a segmented stream which consists of alternating segments of said solution of the substance and of a transport medium, (c) introducing said segmented stream into the first end of a retention stretch, which retention stretch has a first end and a second end, so that said segmented stream passes from said first end to said second end of said retention stretch, and exists from the second end of the retention stretch, (d) cooling the retention stretch, to thereby bring about crystallization of the substance in the segments of solution, in the segmented stream, as said segmented stream passes through the retention stretch, and (e) separating the crystals of material from the segmented stream as it exits from the second end of the retention stretch. Also disclosed is an apparatus for carrying out the method.
    Type: Application
    Filed: June 30, 2005
    Publication date: November 3, 2005
    Applicant: Boehringer Ingelheim Pharma KG
    Inventors: Joerg Schiewe, Bernd Zierenberg
  • Patent number: 6932789
    Abstract: Needle-less injectors for liquids are known in many different forms which are adapted to different conditions of use. The needle-less injector according to the invention is in the form of a hand-held unit. It includes a locking stressing mechanism, an energy-storing spring (36), a hollow plunger (37) displaceable in a cylinder (38) and a nozzle (39). At its one end, the hollow plunger is provided with a valve body (42). The supply container (44) for the liquid is arranged within the housing. When the locking stressing mechanism is stressed by rotation of the two housing portions (31, 32) relative to each other the hollow plunger (37) is drawn out of the cylinder (38); at the same time the amount of liquid required for an injection is conveyed out of the supply container (44) through the plunger into the pump chamber (43). After the locking stressing mechanism is triggered the amount of liquid is expelled from the pump chamber through the nozzle.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: August 23, 2005
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Bernd Zierenberg, Ralph Christian Reimholz, Knut Elbers, Stefan Henke, Joachim Eicher, Johannes Geser
  • Publication number: 20050159441
    Abstract: The invention relates to an apparatus comprising a closure-cap and a container in the form of a two-chamber cartridge in which an active ingredient and a solvent can be stored separately until the apparatus is used in a nebuliser, as well as an active substance concentrate in which the active-substance is present as a solution or suspension for storage purposes.
    Type: Application
    Filed: March 11, 2005
    Publication date: July 21, 2005
    Inventors: Dieter Hochrainer, Bernd Zierenberg
  • Patent number: 6918547
    Abstract: A miniaturized device for producing high pressure in a fluid imposes stringent requirements on the manufacturing process. The device according to the invention consists of a hollow piston displaceably mounted in a cylinder and a valve member which is guided by the hollow piston and mounted so as to be axially movable relative to the hollow piston. The valve member is arranged at one end of the hollow piston inside or immediately in front of the end of the hollow piston. The device is used in a mechanically operated high pressure atomizer. This consists of a two part housing which comprises a pump housing with nozzle, a blocking mechanism, a spring housing with spring, a non-pressurized storage container for the fluid and a medical counter integrated in the spring housing. The valve operates without any auxiliary force, closes very rapidly and is sealed tight against high pressure. The atomizer is safe and simple to operate and environmentally friendly. The fluid is metered extremely accurately.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: July 19, 2005
    Inventors: Joachim Jaeger, Pasquale Cirillo, Joachim Eicher, Johannes Geser, Bernhard Freund, Bernd Zierenberg
  • Publication number: 20040197275
    Abstract: The invention relates to an improved process for the production of powders of an inhalable medicament by crystallization from a supersaturated fluid containing said medicament, the method comprising passing along a tubular reactor
    Type: Application
    Filed: October 14, 2003
    Publication date: October 7, 2004
    Applicants: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE, Boehringer Ingelheim Pharma GmbH & Co., KG
    Inventors: Nathalie Jongen, Jacques Lemaitre, Paul Bowen, Marcel Donnet, Joerg Schiewe, Bernd Zierenberg, Cristina Lucica Soare
  • Publication number: 20040187868
    Abstract: The invention pertains to a dry powder inhaler (1) with a mouthpiece (2) for dispersing pharmaceutical drug formulations, which has available an auxiliary energy source in the form of a pressure medium system (3), with a device for provisioning (6) of a powder formulation (7), whereby upon activation of the pressure medium system a gaseous pressure medium (8) released by the pressure medium system (3) forms with the powder formulation (7) an aerosol (9) in such a way that the powder particles are present in dispersed form within the gaseous pressure medium (8).
    Type: Application
    Filed: September 24, 2003
    Publication date: September 30, 2004
    Applicant: Boehringer Ingelheim Pharma GmbH & Co. KG
    Inventors: Dieter Hochrainer, Joerg Schiewe, Bernd Zierenberg, Stephen Dunne
  • Publication number: 20040182867
    Abstract: For medical fluids, two-part containers are used which consist of an inner container and an outer container which is impenetrable to diffusion. The inner container collapses when the fluid is removed.
    Type: Application
    Filed: April 1, 2004
    Publication date: September 23, 2004
    Applicant: Boehringer Ingelheim International GmbH
    Inventors: Dieter Hochrainer, Bernd Zierenberg, Heinrich Kladders, Martin Essing, Gilbert Wuttke, Matthias Hausmann, Joachim Eicher
  • Publication number: 20040178227
    Abstract: A miniaturised device for producing high pressure in a fluid imposes stringent requirements on the manufacturing process.
    Type: Application
    Filed: March 24, 2004
    Publication date: September 16, 2004
    Applicant: Boehringer International GmbH
    Inventors: Joachim Jaeger, Pasquale Cirillo, Joachim Eicher, Johannes Geser, Bernhard Freund, Bernd Zierenberg
  • Publication number: 20040164099
    Abstract: The present invention relates to atomizers for administering preservative-free liquids to the cornea or conjunctiva of the eye, with special eye adapters for atomizers and the use of atomizers for ophthalmological administration. The atomizers according to the invention are free from propellant gas.
    Type: Application
    Filed: December 18, 2003
    Publication date: August 26, 2004
    Applicant: Boehringer Ingelheim Pharma GmbH & Co., KG
    Inventors: Michael Diestelhorst, Isolde Martin, Bernd Zierenberg, Dieter Hochrainer
  • Publication number: 20040143235
    Abstract: Foil bags are used as a primary packaging for liquids, the bags permitting the liquid to be taken therefrom without the application of a considerable amount of force. A container is provided for a medicinal liquid, the container being gas-tight and liquid-tight so that it is storable over many months. The container includes a collapsible foil bag on which a flange, which is stable in respect of shape, is disposed. The flange is designed for fitting onto a discharge connection member. The container can be disposed in a casing which is stable in respect of shape. The medicinal liquid does not come into contact with air and is protected from the effect of light. The medicinal liquid may be dispensed from the foil bag in many partial quantities over a prolonged period of time, with a respective partial amount thereof being converted into an aerosol by means of an atomizer.
    Type: Application
    Filed: January 12, 2004
    Publication date: July 22, 2004
    Applicant: Boehringer Ingelheim GmbH
    Inventors: Bernhard Freund, Dieter Hochrainer, Heinrich Kladders, Bernd Zierenberg, Joachim Eicher, Johannes Geser, Martin Essing, Holger Reinecke
  • Publication number: 20040094146
    Abstract: The present invention relates to a propellant-gas-free apparatus for the dispensing of liquids, a container cartridge suitable for this for storing the liquid and the ensemble comprising both. The invention comprises a device for the exertion of pressure and for accommodating a container cartridge and a container cartridge in which the dispensing facility is integrated.
    Type: Application
    Filed: August 26, 2003
    Publication date: May 20, 2004
    Applicant: Boehringer Ingelheim Pharma GmbH & Co. KG
    Inventors: Joerg Schiewe, Gilbert Wuttke, Bernd Zierenberg, Stephen Dunne, Horst Wergen
  • Patent number: 6726124
    Abstract: A miniaturized device for pressurizing fluid. The device includes a hollow piston that provides a fluid path and a valve member. The valve member is configured for axial movement so that the valve axis remains parallel to the piston axis. The valve member is arranged at one end of the hollow piston. The valve member may be partially or completely disposed within the hollow piston. The device is particularly adapted for use in a mechanically operated atomizer to produce an inhalable aerosol of a liquid medicament without the use of propellant gas.
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: April 27, 2004
    Assignee: Boehringer International GmbH
    Inventors: Joachim Jaeger, Pasquale Cirillo, Joachim Eicher, Johannes Geser, Bernhard Freund, Bernd Zierenberg
  • Patent number: 6689092
    Abstract: Needle-less injectors for liquids are known in many different forms which are adapted to different conditions of use. The needle-less injector according to the invention is in the form of a hand-held unit. It includes a locking stressing mechanism, an energy-storing spring (36), a hollow plunger (37) displaceable in a cylinder (38) and a nozzle (39). At its one end, the hollow plunger is provided with a valve body (42). The supply container (44) for the liquid is arranged within the housing. When the locking stressing mechanism is stressed by rotation of the two housing portions (31, 32) relative to each other the hollow plunger (37) is drawn out of the cylinder (38); at the same time the amount of liquid required for an injection is conveyed out of the supply container (44) through the plunger into the pump chamber (43). After the locking stressing mechanism is triggered the amount of liquid is expelled from the pump chamber through the nozzle.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: February 10, 2004
    Assignee: Boehringer International GmbH
    Inventors: Bernd Zierenberg, Ralph Christian Reimholz, Knut Elbers, Stefan Henke, Joachim Eicher, Johannes Geser
  • Patent number: 6685691
    Abstract: Foil bags are used as a primary packaging for liquids, the bags permitting the liquid to be taken therefrom without the application of a considerable amount of force. A container is provided for a medicinal liquid, the container being gas-tight and liquid-tight so that it is storable over many months. The container includes a collapsible foil bag on which a flange, which is stable in respect of shape, is disposed. The flange is designed for fitting onto a discharge connection member. The container can be disposed in a casing which is stable in respect of shape. The medicinal liquid does not come into contact with air and is protected from the effect of light. The medicinal liquid may be dispensed from the foil bag in many partial quantities over a prolonged period of time, with a respective partial amount thereof being converted into an aerosol by means of an atomizer.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: February 3, 2004
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Bernhard Freund, Dieter Hochrainer, Heinrich Kladders, Bernd Zierenberg, Joachim Eicher, Johannes Geser, Martin Essing, Holger Reinecke
  • Publication number: 20040015126
    Abstract: Needle-less injectors for liquids are known in many different forms which are adapted to different conditions of use. The needle-less injector according to the invention is in the form of a hand-held unit. It includes a locking stressing mechanism, an energy-storing spring (36), a hollow plunger (37) displaceable in a cylinder (38) and a nozzle (39). At its one end, the hollow plunger is provided with a valve body (42). The supply container (44) for the liquid is arranged within the housing. When the locking stressing mechanism is stressed by rotation of the two housing portions (31, 32) relative to each other the hollow plunger (37) is drawn out of the cylinder (38); at the same time the amount of liquid required for an injection is conveyed out of the supply container (44) through the plunger into the pump chamber (43). After the locking stressing mechanism is triggered the amount of liquid is expelled from the pump chamber through the nozzle.
    Type: Application
    Filed: July 14, 2003
    Publication date: January 22, 2004
    Inventors: Bernd Zierenberg, Ralph Christian Reimholz, Knut Elbers, Stefan Henke, Joachim Eicher, Johannes Geser
  • Publication number: 20040010239
    Abstract: The present invention relates to atomizers for administering liquids to the cornea or conjunctiva of the eye, special eye adapters for atomizers and the use of atomizers for ophthalmological administration. The atomizers according to the invention are free from propellant gas and have an energy reservoir for supplying the energy needed for the atomization process.
    Type: Application
    Filed: June 23, 2003
    Publication date: January 15, 2004
    Applicant: Boehringer Ingelheim Pharma KG
    Inventors: Dieter Hochrainer, Bernd Zierenberg, Michael Diestelhorst, Isolde Martin
  • Publication number: 20030235538
    Abstract: An inhalation kit comprising: (a) an inhaler displaying a flow resistance of about 0.01 to 0.1 {square root}{square root over (kPa)} min/L; and (b) an inhalable powder comprising tiotropium in admixture with a physiologically acceptable excipient with an average particle size of between 10 to 500 &mgr;m, and a method of administering an inhalable powder containing tiotropium in admixture with a physiologically acceptable excipient with an average particle size of between 10 &mgr;m to 500 &mgr;m, the method comprising actuating an inhaler a flow resistance of about 0.01 to 0.1 {square root}{square root over (kPa)} min/L containing the inhalable powder.
    Type: Application
    Filed: April 4, 2003
    Publication date: December 25, 2003
    Applicant: Boehringer Ingelheim Pharma GmbH & Co. KG
    Inventor: Bernd Zierenberg
  • Patent number: 6663848
    Abstract: A method for crystallizing a substance, especially an inhalable medicament, comprising the following steps: (a) dissolving said substance in a solvent, to produce a solution of said substance, (b) producing a segmented stream which consists of alternating segments of said solution of the substance and of a transport medium, (c) introducing said segmented stream into the first end of a retention stretch, which retention stretch has a first end and a second end, so that said segmented stream passes from said first end to said second end of said retention stretch, and exits from the second end of the retention stretch, (d) cooling the retention stretch, to thereby bring about crystallization of the substance in the segments of solution, in the segmented stream, as said segmented stream passes through the retention stretch, and (e) separating the crystals of material from the segmented stream as it exits from the second end of the retention stretch.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: December 16, 2003
    Assignee: Boehringer Ingelheim Pharma KG
    Inventors: Joerg Schiewe, Bernd Zierenberg
  • Publication number: 20030215396
    Abstract: The present invention relates to pharmaceutical preparations in the form of aqueous solutions for the production of propellant-free aerosols.
    Type: Application
    Filed: April 17, 2003
    Publication date: November 20, 2003
    Applicant: Boehringer Ingelheim Pharma KG
    Inventors: Bernhard Freund, Bernd Zierenberg
  • Publication number: 20030175187
    Abstract: A method for crystallizing a substance, especially an inhalable medicament, comprising the following steps:
    Type: Application
    Filed: May 19, 2003
    Publication date: September 18, 2003
    Applicant: Beohringer Ingelheim Pharma KG
    Inventors: Joerg Schiewe, Bernd Zierenberg