Patents by Inventor Fon-Yih Tsuang
Fon-Yih Tsuang 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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Publication number: 20240000484Abstract: The present disclosure provides a spinal fixation device, including a spinal fixation pedicle screw and an outer oval sheath. The spinal fixation device is provided with at least one locking structure and the outer oval sheath is locked to the spinal fixation pedicle screw through the at least one locking structure. The spinal fixation device can strengthen the stability of the spinal fixation pedicle screw for fixation after implantation in vertebrae during the spinal surgery.Type: ApplicationFiled: February 9, 2022Publication date: January 4, 2024Inventors: Fon-Yih TSUANG, Chang-Jung CHIANG, Yueh-Ying HSIEH, Ting-Shuo HSU, Po-Yi LIU
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Patent number: 11351037Abstract: The disclosure relates to a vertebral body implant including a flexible main body and at least one pedicle screw joint. The flexible main body is an integrally formed single piece having at least one joint-accommodating hole and at least one opening connected to the at least one joint-accommodating hole. The pedicle screw joint is an integrally formed single piece movably accommodated in the at least one joint-accommodating hole.Type: GrantFiled: December 30, 2019Date of Patent: June 7, 2022Assignees: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, NATIONAL TAIWAN UNIVERSITY HOSPITALInventors: Fang-Jie Jang, Pei-I Tsai, De-Yau Lin, An-Li Chen, Fon-Yih Tsuang, Chih-Chieh Huang, Hsin-Hsin Shen
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Publication number: 20210137698Abstract: The disclosure relates to a vertebral body implant including a flexible main body and at least one pedicle screw joint. The flexible main body is an integrally formed single piece having at least one joint-accommodating hole and at least one opening connected to the at least one joint-accommodating hole. The pedicle screw joint is an integrally formed single piece movably accommodated in the at least one joint-accommodating hole.Type: ApplicationFiled: December 30, 2019Publication date: May 13, 2021Applicants: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, NATIONAL TAIWAN UNIVERSITY HOSPITALInventors: Fang-Jie JANG, Pei-I TSAI, De-Yau LIN, An-Li CHEN, Fon-Yih TSUANG, Chih-Chieh HUANG, Hsin-Hsin SHEN
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Publication number: 20190290332Abstract: A bone screw has a screw body with a spherical head and a screw rod and a positioning sleeve with a connecting rod fixing seat and a calibration part. An annular cutting slot is defined between the connecting rod fixing seat and the calibration part. At least two pairs of connecting rod calibration openings are formed on a sidewall of the calibration part. An axial cutting slot is formed on a sidewall of an adjacent region of the connecting rod calibration openings. The spherical head is connected to a top portion of the screw rod. The screw body is pivoted to a bottom portion of the positioning sleeve. The spherical head is sleevingly arranged on a spherical pit of the connecting rod fixing seat. The calibration part can be split into two pieces and separated from the connecting rod fixing seat. The calibration part is removable from the positioning sleeve.Type: ApplicationFiled: March 20, 2019Publication date: September 26, 2019Inventors: Fon-Yih TSUANG, Chang-Jung CHIANG, Chia-Hsien CHEN
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Patent number: 9877751Abstract: A bone screw of minimally invasive fixation device for lumbar comprises a positioning casing and a screw body. The positioning casing includes a rod securing base and an alignment portion, both of which are integrally formed; an annular notch is formed between them. The alignment portion has at least two pairs of rod alignment openings in a bulb-shaped or keyhole-shaped form with an upper portion larger than a lower portion. Two longitudinal notches extend from near the top across the alignment openings to the rod securing base. The screw body includes a spherical head and a screw rod; the outer diameter of the spherical head is larger than that of the screw rod. The screw body is rotatably connected to the bottom portion of the positioning casing; the spherical head of the screw body is arranged in the spherical pit of the rod securing base.Type: GrantFiled: November 4, 2014Date of Patent: January 30, 2018Assignee: BAUI BIOTECH CO., LTD.Inventors: Fon Yih Tsuang, Chia Hsien Chen, Chang Jung Chiang, Yi Jie Kuo
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Patent number: 9615855Abstract: The percutaneous minimally invasive pedicle fixation system herein comprises a bone screw and a hook-rod, wherein the bone screw includes a positioning casing and a screw body. The positioning casing comprises securing base, an alignment casing and a screw body passage. The securing base includes a through hole at the bottom and two openings arranged opposite to each other in the wall. The alignment casing has a wall portion and a volume reduce portion, wherein the wall portion is configured with an elongate opening and the volume reduced portion is a portion with part of the wall removed to recede from the outer surface of the securing base and a guide opening formed in the volume reduced portion. The positioning casing further includes a first easy breaking portion between the alignment casing and the securing base so that the alignment casing can be removed from the positioning casing.Type: GrantFiled: May 15, 2015Date of Patent: April 11, 2017Assignee: BAUI BIOTECH CO., LTD.Inventors: Fon Yih Tsuang, Chia Hsien Chen, Chang Jung Chiang, Yi Jie Kuo
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Patent number: 9522071Abstract: An implanting apparatus and an operating method thereof are provided. An implanting apparatus used for implanting an intervertebral cage into a location between two adjacent vertebral bodies, wherein the implanting apparatus comprises a sleeve and an extension member. The extension member has a rod and a coupling column, wherein the rod is screwed inside the sleeve, the coupling column is connected to one end of the rod and exposed outside the sleeve, and the axial direction of the coupling column is substantially perpendicular to that of the rod. When one end of the coupling column is disposed on an inner arc surface of a connecting portion of the intervertebral cage and the rod is rotated with respect to the sleeve, the distance between the coupling column and the sleeve is decreased so as to clamp the connecting portion of the intervertebral cage between the coupling column and the sleeve.Type: GrantFiled: July 11, 2014Date of Patent: December 20, 2016Assignee: WILTROM CO., LTD.Inventors: Yang-Hwei Tsuang, Huang-Chien Liang, Chang-Jung Chiang, Chia-Hsien Chen, Fon-Yih Tsuang, Yung-Fang Tsai
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Publication number: 20160331410Abstract: The percutaneous minimally invasive pedicle fixation system herein comprises a bone screw and a hook-rod, wherein the bone screw includes a positioning casing and a screw body. The positioning casing comprises securing base, an alignment casing and a screw body passage. The securing base includes a through hole at the bottom and two openings arranged opposite to each other in the wall. The alignment casing has a wall portion and a volume reduce portion, wherein the wall portion is configured with an elongate opening and the volume reduced portion is a portion with part of the wall removed to recede from the outer surface of the securing base and a guide opening formed in the volume reduced portion. The positioning casing further includes a first easy breaking portion between the alignment casing and the securing base so that the alignment casing can be removed from the positioning casing.Type: ApplicationFiled: May 15, 2015Publication date: November 17, 2016Inventors: Fon Yih TSUANG, Chia Hsien CHEN, Chang Jung CHIANG, Yi Jie KUO
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Publication number: 20150127054Abstract: A bone screw of minimally invasive fixation device for lumbar comprises a positioning casing and a screw body. The positioning casing includes a rod securing base and an alignment portion, both of which are integrally formed; an annular notch is formed between them. The alignment portion has at least two pairs of rod alignment openings in a bulb-shaped or keyhole-shaped form with an upper portion larger than a lower portion. Two longitudinal notches extend from near the top across the alignment openings to the rod securing base. The screw body includes a spherical head and a screw rod; the outer diameter of the spherical head is larger than that of the screw rod. The screw body is rotatably connected to the bottom portion of the positioning casing; the spherical head of the screw body is arranged in the spherical pit of the rod securing base.Type: ApplicationFiled: November 4, 2014Publication date: May 7, 2015Inventors: Fon Yih TSUANG, Chia Hsien CHEN, Chang Jung CHIANG, Yi Jie KUO
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Publication number: 20140330314Abstract: A spinal fixation assembly including a pedicle rod and pedicle screws which secure the pedicle rod to the spine. Each pedicle screw includes a head configured to receive a portion of the pedicle rod, and a threaded portion extending from a first end of the head and configured to engage a vertebra. The pedicle rod is secured to the head by a fastener. The head includes a breakaway region that defines a location in which at least a first portion of the head can be easily separated from the remainder of the head upon application of sufficient force to the first portion.Type: ApplicationFiled: July 21, 2014Publication date: November 6, 2014Inventors: Yang-Hwei Tsuang, Chun-Jen Liao, Huang-Chien Liang, Shih-Jui Han, Fon-Yih Tsuang, Chang-Jung Chiang
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Publication number: 20140324106Abstract: An implanting apparatus and an operating method thereof are provided. An implanting apparatus used for implanting an intervertebral cage into a location between two adjacent vertebral bodies, wherein the implanting apparatus comprises a sleeve and an extension member. The extension member has a rod and a coupling column, wherein the rod is screwed inside the sleeve, the coupling column is connected to one end of the rod and exposed outside the sleeve, and the axial direction of the coupling column is substantially perpendicular to that of the rod. When one end of the coupling column is disposed on an inner arc surface of a connecting portion of the intervertebral cage and the rod is rotated with respect to the sleeve, the distance between the coupling column and the sleeve is decreased so as to clamp the connecting portion of the intervertebral cage between the coupling column and the sleeve.Type: ApplicationFiled: July 11, 2014Publication date: October 30, 2014Applicant: WILTROM CO., LTD.Inventors: Yang-Hwei TSUANG, Huang-Chien LIANG, Chang-Jung CHIANG, Chia-Hsien CHEN, Fon-Yih TSUANG, Yung-Fang TSAI
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Patent number: 8870879Abstract: A spinal fixation assembly includes a pedicle rod and pedicle screws which secure the pedicle rod to the spine. Each pedicle screw includes a head configured to receive a portion of the pedicle rod, and a threaded portion extending from a first end of the head and configured to engage a vertebra. The pedicle rod is secured to the head by a fastener. The head includes a breakaway region that defines a location in which at least a first portion of the head can be easily separated from the remainder of the head upon application of sufficient force to the first portion. A minimally invasive method of implanting the spinal fixation assembly is disclosed.Type: GrantFiled: June 16, 2011Date of Patent: October 28, 2014Assignee: Industrial Technology Research InstituteInventors: Yang-Hwei Tsuang, Chun-Jen Liao, Huang-Chien Liang, Shih-Jui Han, Fon-Yih Tsuang, Chang-Jung Chiang
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Patent number: 8784493Abstract: An intervertebral cage, an implanting apparatus and an operating method thereof are provided. The intervertebral cage for being implanted between two adjacent vertebral bodies includes a body and a connecting portion. The body has a lateral convex surface, an inclined surface, a lateral concave surface and a connecting surface connected sequentially. The connecting portion includes a main portion and a protrusion. The main portion connected to the connecting surface has a through hole. The protrusion is protruded from the main portion into the through hole to form first and second inner arc surfaces. The maximum width of the intervertebral cage is a distance between first and second lines. The first and second lines are substantially parallel to a tangent line of the lateral convex surface and the first line, respectively. The distance between the inclined surface and the first line decreases gradually along a direction away from the connecting portion.Type: GrantFiled: May 27, 2011Date of Patent: July 22, 2014Assignee: Wiltrom Co., Ltd.Inventors: Yang-Hwei Tsuang, Huang-Chien Liang, Chang-Jung Chiang, Chia-Hsien Chen, Fon-Yih Tsuang, Yung-Fang Tsai
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Patent number: 8784424Abstract: A spinal fixation assembly includes a pedicle rod and pedicle screws which secure the pedicle rod to the spine. Each pedicle screw includes a head configured to receive a portion of the pedicle rod, and a threaded portion extending from a first end of the head and configured to engage a vertebra. The pedicle rod is secured to the head by a fastener. The head includes a breakaway region that defines a location in which at least a first portion of the head can be easily separated from the remainder of the head upon application of sufficient force to the first portion. A minimally invasive method of implanting the spinal fixation assembly is disclosed.Type: GrantFiled: June 16, 2011Date of Patent: July 22, 2014Assignee: Industrial Technology Research InstituteInventors: Yang-Hwei Tsuang, Chun-Jen Liao, Huang-Chien Liang, Shih-Jui Han, Fon-Yih Tsuang, Chang-Jung Chiang
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Patent number: 8562619Abstract: A method for filling a bone defect in a subject in need thereof is disclosed. The method includes heating a bone cement composition at a first temperature where the bone cement composition is fluidic, and delivering an effective amount of the fluidic bone cement composition at a second temperature to the bone defect thereby filling the bone defect and allowing the fluidic bone cement composition to solidify, the second temperature being sufficiently high for maintaining the bone cement composition fluidic without causing thermal necrosis. Also disclosed are systems for carrying out the method.Type: GrantFiled: December 3, 2009Date of Patent: October 22, 2013Assignee: Industrial Technology Research InstituteInventors: Chun-Jen Liao, Yang-Hwei Tsuang, Huang-Chien Liang, Chun-Hung Chen, Fon-Yih Tsuang, Yi-Jie Kuo
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Publication number: 20120323278Abstract: A spinal fixation assembly includes a pedicle rod and pedicle screws which secure the pedicle rod to the spine. Each pedicle screw includes a head configured to receive a portion of the pedicle rod, and a threaded portion extending from a first end of the head and configured to engage a vertebra. The pedicle rod is secured to the head by a fastener. The head includes a breakaway region that defines a location in which at least a first portion of the head can be easily separated from the remainder of the head upon application of sufficient force to the first portion. A minimally invasive method of implanting the spinal fixation assembly is disclosed.Type: ApplicationFiled: June 16, 2011Publication date: December 20, 2012Applicant: Industrial Technology Research InstituteInventors: Yang-Hwei Tsuang, Chun-Jen Liao, Huang-Chien Liang, Shih-Jui Han, Fon-Yih Tsuang, Chang-Jung Chiang
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Publication number: 20120323242Abstract: A bone awl is provided for preparing a bone for implantation with a screw. The awl includes a shaft having a first end and a second end opposed to the first end. A handle is fixed to the first end, and an extension extends from the second end. The extension includes a first cutting portion configured to form a hole in bone and a second cutting portion configured to form an internal screw thread in the bone along the surface of the hole. The awl also includes an axial through passage that extends from the handle to the first cutting portion and is dimensioned to receive a Kirshner pin therein.Type: ApplicationFiled: June 16, 2011Publication date: December 20, 2012Applicant: Industrial Technology Research InstituteInventors: Yang-Hwei Tsuang, Chun-Jen Liao, Huang-Chien Liang, Shih-Jui Han, Fon-Yih Tsuang, Chang-Jung Chiang
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Publication number: 20120323279Abstract: A spinal fixation assembly includes a pedicle rod and pedicle screws which secure the pedicle rod to the spine. Each pedicle screw includes a head configured to receive a portion of the pedicle rod, and a threaded portion extending from a first end of the head and configured to engage a vertebra. The pedicle rod is secured to the head by a fastener. The head includes a breakaway region that defines a location in which at least a first portion of the head can be easily separated from the remainder of the head upon application of sufficient force to the first portion. A minimally invasive method of implanting the spinal fixation assembly is disclosed.Type: ApplicationFiled: June 16, 2011Publication date: December 20, 2012Applicant: Industrial Technology Research InstituteInventors: Yang-Hwei Tsuang, Chun-Jen Liao, Huang-Chien Liang, Shih-Jui Han, Fon-Yih Tsuang, Chang-Jung Chiang
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Publication number: 20120209383Abstract: An intervertebral cage, an implanting apparatus and an operating method thereof are provided. The intervertebral cage for being implanted between two adjacent vertebral bodies includes a body and a connecting portion. The body has a lateral convex surface, an inclined surface, a lateral concave surface and a connecting surface connected sequentially. The connecting portion includes a main portion and a protrusion. The main portion connected to the connecting surface has a through hole. The protrusion is protruded from the main portion into the through hole to form first and second inner arc surfaces. The maximum width of the intervertebral cage is a distance between first and second lines. The first and second lines are substantially parallel to a tangent line of the lateral convex surface and the first line, respectively. The distance between the inclined surface and the first line decreases gradually along a direction away from the connecting portion.Type: ApplicationFiled: May 27, 2011Publication date: August 16, 2012Applicant: Wiltrom Co., Ltd.Inventors: Yang-Hwei TSUANG, Huang-Chien LIANG, Chang-Jung CHIANG, Chia-Hsien CHEN, Fon-Yih TSUANG, Yung-Fang TSAI
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Publication number: 20110137318Abstract: A method for filling a bone defect in a subject in need thereof is disclosed. The method includes heating a bone cement composition at a first temperature where the bone cement composition is fluidic, and delivering an effective amount of the fluidic bone cement composition at a second temperature to the bone defect thereby filling the bone defect and allowing the fluidic bone cement composition to solidify, the second temperature being sufficiently high for maintaining the bone cement composition fluidic without causing thermal necrosis. Also disclosed are systems for carrying out the method.Type: ApplicationFiled: December 3, 2009Publication date: June 9, 2011Applicant: Industrial Technology Research InstituteInventors: Chun-Jen Liao, Yang-Hwei Tsuang, Huang-Chien Liang, Chun-Hung Chen, Fon-Yih Tsuang, Yi-Jie Kuo