Patents by Inventor Klaus Dorawa
Klaus Dorawa 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).
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Patent number: 11957392Abstract: The disclosure relates to medical devices and methods of manufacturing medical devices. An orthopedic screw includes an inner core member having a head having a first outer diameter, a tip having a second outer diameter, and a body extending between the head and the tip and having a third outer diameter that is less than the first outer diameter and the second outer diameter. An outer body member is disposed circumferentially around the body of the inner core member and defines an outer body member external thread. The tip of the inner core member can define an inner core member external thread that forms an interrupted thread with the outer body member external thread.Type: GrantFiled: February 18, 2022Date of Patent: April 16, 2024Assignee: GLW, Inc.Inventors: Thomas Hoon Lee, Axel Cremer, Klaus Dorawa, Christian Lutz, Stefan Völzow, Lowell Weil, Jr.
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Patent number: 11826083Abstract: The disclosure relates to medical devices and methods of manufacturing medical devices. An intramedullary rod includes a head member, a shaft member partially disposed within a distal recess of the head member, and an outer body member disposed circumferentially around the shaft member and a portion of the head member. Medical device systems and methods of manufacturing medical devices are also described.Type: GrantFiled: April 6, 2020Date of Patent: November 28, 2023Assignee: GLW, Inc.Inventors: Steven Saam Sands, Christian Lutz, Axel Cremer, Stefan Völzow, Klaus Dorawa
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Publication number: 20230135924Abstract: A surgical tool for eye surgery that utilizes a stiffening sleeve and employs a needle of extendible reach. The reach off the needle into the eye is dynamically adjustable by forcible interaction between the stiffening sleeve and a cannula at an outer location of a patient's eye. An end of the tool may retract to facilitate extension of the needle for added reach. Additionally, the sleeve may be further independently retracted for even greater reach of the needle implement toward a surgical site within the eye of the patient.Type: ApplicationFiled: October 6, 2022Publication date: May 4, 2023Inventors: Reto Grüebler, Klaus Dorawa
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Publication number: 20220192706Abstract: A surgical tool with a stiffening sleeve that is dynamically retractable during surgery. The tool includes a needle or implement for performing minimally invasive surgery through a pre-placed cannula at a surgical site. A stiffening sleeve of the tool about the implement may provide an added degree of stiffness such as where the implement is particularly thin. However, an end of the sleeve is held in position at the cannula as the implement advances therebeyond for the surgery. Nevertheless, as determined by the surgeon, the implement may be further advanced with a corresponding and deliberate retraction of the sleeve into the tool body as desired.Type: ApplicationFiled: December 14, 2021Publication date: June 23, 2022Inventors: Reto Grueebler, Klaus Dorawa
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Publication number: 20220193311Abstract: A surgical tool with an elongated implement of enhanced stiffening character due to the use of a stiffening coating and/or a lumen of inconsistent diameter. The stiffening coating may be supplied by a deposition technique utilizing materials tailored to biocompatibility, stiffening and even to reducing glare. The lumen of inconsistent diameter may include a distal end taking up a minority of the lumen that is of a larger diameter than a proximal portion of substantially smaller diameter for increasing wall thickness and stiffening of the majority of the implement.Type: ApplicationFiled: December 14, 2021Publication date: June 23, 2022Inventors: Reto Grüebler, Bernhard Pultar, Klaus Dorawa
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Publication number: 20220168034Abstract: The disclosure relates to medical devices and methods of manufacturing medical devices. An orthopedic screw includes an inner core member having a head having a first outer diameter, a tip having a second outer diameter, and a body extending between the head and the tip and having a third outer diameter that is less than the first outer diameter and the second outer diameter. An outer body member is disposed circumferentially around the body of the inner core member and defines an outer body member external thread. The tip of the inner core member can define an inner core member external thread that forms an interrupted thread with the outer body member external thread.Type: ApplicationFiled: February 18, 2022Publication date: June 2, 2022Applicant: GLW, Inc.Inventors: Thomas Hoon Lee, Axel Cremer, Klaus Dorawa, Christian Lutz, Stefan Völzow, Lowell Weil, JR.
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Patent number: 11253304Abstract: The disclosure relates to medical devices and methods of manufacturing medical devices. An orthopedic screw includes an inner core member having a head having a first outer diameter, a tip having a second outer diameter, and a body extending between the head and the tip and having a third outer diameter that is less than the first outer diameter and the second outer diameter. An outer body member is disposed circumferentially around the body of the inner core member and defines an outer body member external thread. The tip of the inner core member can define an inner core member external thread that forms an interrupted thread with the outer body member external thread.Type: GrantFiled: January 3, 2019Date of Patent: February 22, 2022Assignee: GLW, Inc.Inventors: Thomas Hoon Lee, Axel Cremer, Klaus Dorawa, Christian Lutz, Stefan Völzow, Lowell Weil, Jr.
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Patent number: 10779871Abstract: A flexible surgical screw driver comprises a rotatable handle member, a shaft member and a flexible member. The handle member is configured with a first coupling means and the shaft member with a second coupling means. These first and second coupling means are configured to cooperate such that the handle member and the shaft member are angularly displaceable relative to each other and such that said handle member and said shaft member are non-rotatably coupled to each other for driving a screw with rotation transmitted from the handle member. The flexible member is configured to connect the handle member and the shaft member to each other and hold said handle member and said shaft member together such that the longitudinal axes thereof are substantially aligned and such that angular displacement of the handle member and the shaft member relative to each other such that the longitudinal axes thereof are misaligned, can be performed against the action of said flexible member.Type: GrantFiled: November 25, 2014Date of Patent: September 22, 2020Assignee: SWEMAC INNOVATION ABInventors: Christian Lutz, Klaus Dorawa
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Publication number: 20200229851Abstract: The disclosure relates to medical devices and methods of manufacturing medical devices. An intramedullary rod includes a head member, a shaft member partially disposed within a distal recess of the head member, and an outer body member disposed circumferentially around the shaft member and a portion of the head member. Medical device systems and methods of manufacturing medical devices are also described.Type: ApplicationFiled: April 6, 2020Publication date: July 23, 2020Applicant: GLW, Inc.Inventors: Steven Saam Sands, Christian Lutz, Axel Cremer, Stefan Völzow, Klaus Dorawa
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Patent number: 10610270Abstract: The disclosure relates to medical devices and methods of manufacturing medical devices. An intramedullary rod includes a head member, a shaft member partially disposed within a distal recess of the head member, and an outer body member disposed circumferentially around the shaft member and a portion of the head member. Medical device systems and methods of manufacturing medical devices are also described.Type: GrantFiled: January 15, 2019Date of Patent: April 7, 2020Assignee: GLW, Inc.Inventors: Steven Saam Sands, Christian Lutz, Axel Cremer, Stefan Völzow, Klaus Dorawa
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Patent number: 10470810Abstract: A guide wire control device for advancing a guide wire into a body or a portion of the body, comprises a handle member (1), a lever (2) and a spring means (3). The spring means (3) holds the lever (2) relative to the handle member (1) such that the longitudinal axis of a through-hole (9) in the lever (2) is misaligned with the longitudinal axis of an elongate passage (4) in the handle member (1) for locking the guide wire control device to a guide wire (5) extending through said elongate passage and said through-hole. Pivotal movement of the lever (2) brings the longitudinal axis of the through-hole (9) into alignment or substantial alignment with the longitudinal axis of the elongate passage (4) for release of the guide wire (5). Pivotal movement of the lever (2) also brings the longitudinal axis of the through-hole (9) into renewed misalignment with the longitudinal axis of the elongate passage (4) for clamping of the guide wire (5).Type: GrantFiled: December 16, 2014Date of Patent: November 12, 2019Assignee: SWEMAC INNOVATION ABInventors: Christian Lutz, Klaus Dorawa
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Patent number: 10398482Abstract: The present invention relates to an intramedullary nail for proximal femoral fractures. The intramedullary nail comprises an elongate body (1) with a longitudinal bore (2). The elongate body (1) includes a proximal portion (5) with an oblique transverse bore (7) for a proximal locking member and a distal portion (6) with at least one transverse bore (8) for a distal locking member. An inlet end of the oblique transverse bore (7) is configured as a recess (9) with a recessed surface (11). The recessed surface (11) is composed of recessed lateral surface portions (15) and a recessed proximal as well as a recessed distal surface portion (16 and 17 respectively). Each of the recessed lateral surface portions (15) is configured with at least one protuberance (18) for preventing or reducing the risk for misalignment of e.g. a reamer and, if misalignment occurs, this will not affect critical parts of the intramedullary nail.Type: GrantFiled: November 25, 2014Date of Patent: September 3, 2019Assignee: SWEMAC INNOVATION ABInventors: Christian Lutz, Klaus Dorawa
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Publication number: 20190216513Abstract: The disclosure relates to medical devices and methods of manufacturing medical devices. An intramedullary rod includes a head member, a shaft member partially disposed within a distal recess of the head member, and an outer body member disposed circumferentially around the shaft member and a portion of the head member. Medical device systems and methods of manufacturing medical devices are also described.Type: ApplicationFiled: January 15, 2019Publication date: July 18, 2019Inventors: Steven Saam Sands, Christian Lutz, Axel Cremer, Stefan Völzow, Klaus Dorawa
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Publication number: 20190209220Abstract: The disclosure relates to medical devices and methods of manufacturing medical devices. An orthopedic screw includes an inner core member having a head having a first outer diameter, a tip having a second outer diameter, and a body extending between the head and the tip and having a third outer diameter that is less than the first outer diameter and the second outer diameter. An outer body member is disposed circumferentially around the body of the inner core member and defines an outer body member external thread. The tip of the inner core member can define an inner core member external thread that forms an interrupted thread with the outer body member external thread.Type: ApplicationFiled: January 3, 2019Publication date: July 11, 2019Inventors: Thomas Hoon Lee, Axel Cremer, Klaus Dorawa, Christian Lutz, Stefan Völzow, Lowell Weil, JR.
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Publication number: 20190090926Abstract: A flexible surgical screw driver comprises a rotatable handle member, a shaft member and a flexible member. The handle member is configured with a first coupling means and the shaft member with a second coupling means. These first and second coupling means are configured to cooperate such that the handle member and the shaft member are angularly displaceable relative to each other and such that said handle member and said shaft member are non-rotatably coupled to each other for driving a screw with rotation transmitted from the handle member. The flexible member is configured to connect the handle member and the shaft member to each other and hold said handle member and said shaft member together such that the longitudinal axes thereof are substantially aligned and such that angular displacement of the handle member and the shaft member relative to each other such that the longitudinal axes thereof are misaligned, can be performed against the action of said flexible member.Type: ApplicationFiled: November 25, 2014Publication date: March 28, 2019Inventors: Christian Lutz, Klaus Dorawa
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Patent number: 10194943Abstract: The rod coupler according to the present invention comprises two clamping jaws and locking means for locking said clamping jaws against one another. Each clamping jaw comprises an outside surface and a clamping surface, the latter providing at least a first and a second groove. Each groove runs laterally from a different part of the outside surface extending into the rod coupler, wherein longitudinal axis of the first groove and the second groove include an angle that is equal to or less than 160 degrees. Opposing grooves form an aperture. The apertures are adapted for receiving a rod if the locking means is released. Clamping jaws that are locked by the locking means clamp the rods received in said apertures.Type: GrantFiled: September 13, 2012Date of Patent: February 5, 2019Assignee: Stryker European Holdings I, LLCInventors: Klaus Dorawa, Axel Cremer, Adam Busch, Manfred Müller
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Publication number: 20180368903Abstract: A guide wire control device for advancing a guide wire into a body or a portion of the body, comprises a handle member (1), a lever (2) and a spring means (3). The spring means (3) holds the lever (2) relative to the handle member (1) such that the longitudinal axis of a through-hole (9) in the lever (2) is misaligned with the longitudinal axis of an elongate passage (4) in the handle member (1) for locking the guide wire control device to a guide wire (5) extending through said elongate passage and said through-hole. Pivotal movement of the lever (2) brings the longitudinal axis of the through-hole (9) into alignment or substantial alignment with the longitudinal axis of the elongate passage (4) for release of the guide wire (5). Pivotal movement of the lever (2) also brings the longitudinal axis of the through-hole (9) into renewed misalignment with the longitudinal axis of the elongate passage (4) for clamping of the guide wire (5).Type: ApplicationFiled: December 16, 2014Publication date: December 27, 2018Inventors: Christian Lutz, Klaus Dorawa
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Patent number: 9888939Abstract: A punching device for preparing a recess in a bone has a punching tool usable for such a punching device. An implant usable with the punching tool is provided and a method for preparing a recess in a bone are disclosed. The punching device comprises an ultrasonic sonotrode and a punching tool which is fixable to the sonotrode at its proximal extremity. At its distal extremity, the punching tool has a thin-walled portion having a non-rotational symmetric cross-section. By ultrasonic vibration of the punching tool, the thin-walled portion can be forced into a bone thereby preparing a recess of which is not rotationally symmetric. Subsequently, an implant can be held in such recess. Due to its lack of rotational symmetry, the implant may absorb rotational forces around its longitudinal axis.Type: GrantFiled: October 28, 2014Date of Patent: February 13, 2018Assignees: Woodwelding AG, Stryker European Holdings I, LLCInventors: Klaus Dorawa, Urs Weber, Philipp Seiler, Laurent Torriani
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Publication number: 20170333096Abstract: The present invention relates to an intramedullary nail for proximal femoral fractures. The intramedullary nail comprises an elongate body (1) with a longitudinal bore (2). The elongate body (1) includes a proximal portion (5) with an oblique transverse bore (7) for a proximal locking member and a distal portion (6) with at least one transverse bore (8) for a distal locking member. An inlet end of the oblique transverse bore (7) is configured as a recess (9) with a recessed surface (11). The recessed surface (11) is composed of recessed lateral surface portions (15) and a recessed proximal as well as a recessed distal surface portion (16 and 17 respectively). Each of the recessed lateral surface portions (15) is configured with at least one protuberance (18) for preventing or reducing the risk for misalignment of e.g. a reamer and, if misalignment occurs, this will not affect critical parts of the intramedullary nail.Type: ApplicationFiled: November 25, 2014Publication date: November 23, 2017Inventors: Christian Lutz, Klaus Dorawa
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Patent number: 9668798Abstract: A screw for fixation of, for example, a fracture having a hollow shaft, a first outer thread and radial openings at its distal end, and a second outer thread and an inner engagement portion at its proximal end. The second outer thread is adapted to engage with a tissue protection sleeve. The inner engagement portion is adapted to fit to a driving end of a driving tool. By way of this, forces in axial or radial direction may be applied to the screw by the sleeve, and forces in rotational direction may be applied by the driving tool. Therefore, the screw can be installed accurately at the intended site in an object.Type: GrantFiled: December 9, 2013Date of Patent: June 6, 2017Assignees: Stryker European Holdings I, LLC, Woodwelding AGInventors: Helge Giersch, Klaus Dorawa, Philipp Seiler, Jörg Mayer