Patents by Inventor Chien-Ping Ju

Chien-Ping Ju 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).

  • Method for forming a hardened cement in a bone cavity
    Patent number: 7144398
    Abstract: The present invention discloses a method of hardening a bone cement under an exerted pressure in a bone cavity including preparing a cement paste; injecting said cement paste into a pocket placed in a bone cavity; and allowing the cement paste to harden in the pocket. Preferably, the pocket is opened after the cement paste is set, and the opened pocket is removed from the bone cavity.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: December 5, 2006
    Assignee: Cana Lab Corporation
    Inventors: Jiin-Huey Chern Lin, Chien-Ping Ju
  • Dual function prosthetic bone implant and method for preparing the same
    Patent number: 7128856
    Abstract: The present invention discloses a prosthetic bone implant made of a hardened calcium phosphate cement having an apatitic phase as a major phase, which includes a dense cortical portion bearing the majority of load and a porous cancellous portion allowing a rapid blood/body fluid penetration and tissue ingrowth.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: October 31, 2006
    Assignee: Calcitec, Inc.
    Inventors: Jiin-Huey Chern Lin, Chien-Ping Ju, Chih-Hung Tsai
  • Method of making an article of a titanium alloy by plastically deforming at room temperature and/or polishing
    Publication number: 20060231178
    Abstract: A method of making an article of a titanium alloy is disclosed, which includes i) quenching a work piece, which is made of a titanium alloy composition containing a) about 0.01-5 wt % Bi based on the weight of the composition; b) at least one alloy element selected from the group consisting of Mo, Nb, Ta, Zr and Hf; and c) the balance Ti, having a temperature higher than a beta transition temperature of the titanium alloy composition to a temperature lower than 500° C. at a cooling rate greater than 10° C./second between the beta transition temperature and 500° C., so that the quenched work piece contains beta phase as a major phase; and ii) plastically deforming the quenched work piece or polishing the quenched work piece so that a surface of the polished work piece has an average surface roughness less than about 0.1 ?m.
    Type: Application
    Filed: April 18, 2005
    Publication date: October 19, 2006
    Inventors: Jiin-Huey Lin, Chien-Ping Ju
  • Dual function prosthetic bone implant and method for preparing the same
    Patent number: 7122139
    Abstract: The present invention discloses a prosthetic bone implant made of a hardened calcium phosphate cement having an apatitic phase as a major phase, which includes a dense cortical portion bearing the majority of load and a porous cancellous portion allowing a rapid blood/body fluid penetration and tissue ingrowth.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: October 17, 2006
    Assignee: Calcitec, Inc.
    Inventors: Jiin-Huey Chern Lin, Chien-Ping Ju, Chih-Hung Tsai
  • Dual function prosthetic bone implant and method for preparing the same
    Patent number: 7122140
    Abstract: The present invention discloses a prosthetic bone implant made of a hardened calcium phosphate cement having an apatitic phase as a major phase, which includes a dense cortical portion bearing the majority of load and a porous cancellous portion allowing a rapid blood/body fluid penetration and tissue ingrowth.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: October 17, 2006
    Assignee: Calcitec, Inc.
    Inventors: Jiin-Huey Chern Lin, Chien-Ping Ju, Chih-Hung Tsai
  • Dual function prosthetic bone implant and method for preparing the same
    Patent number: 7122138
    Abstract: The present invention discloses a prosthetic bone implant made of a hardened calcium phosphate cement having an apatitic phase as a major phase, which includes a dense cortical portion bearing the majority of load and a porous cancellous portion allowing a rapid blood/body fluid penetration and tissue ingrowth.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: October 17, 2006
    Assignee: Calcitec, Inc.
    Inventors: Jiin-Huey Chern Lin, Chien-Ping Ju, Chih-Hung Tsai
  • Method for making a porous calcium phosphate article
    Patent number: 7119038
    Abstract: The present invention discloses a method for making a porous calcium phosphate article including i) preparing a shaped article from a paste containing a calcium phosphate cement, a pore-forming powder and a setting liquid; ii) immersing the shaped article in an immersing liquid for a period of time so that the pore-forming powder is dissolved in the immersing liquid, creating pores in said shaped article; and iii) removing the resulting porous shaped article from the immersing liquid, wherein the resulting porous shaped article has an improved compressive strength. The porous shaped calcium phosphate article of the present invention may be used as a tissue-engineered scaffold, medical implant or a reinforcing constituent of a composite.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: October 10, 2006
    Assignee: Calcitec, Inc.
    Inventors: Jiin-Huey Chern Lin, Chien-Ping Ju, Yin-Chun Tien, Chih-Hung Tsai, Chao-Chin Ning, Chung-Po Chao
  • Dual function prosthetic bone implant and method for preparing the same
    Patent number: 7118695
    Abstract: The present invention discloses a prosthetic bone implant made of a hardened calcium phosphate cement having an apatitic phase as a major phase, which includes a dense cortical portion bearing the majority of load and a porous cancellous portion allowing a rapid blood/body fluid penetration and tissue ingrowth.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: October 10, 2006
    Assignee: Calcitec, Inc.
    Inventors: Jiin-Huey Chern Lin, Chien-Ping Ju, Chih-Hung Tsai
  • Method for making a molded calcium phosphate article
    Patent number: 7118705
    Abstract: The present invention discloses a method for making a molded calcium phosphate article including impregnating a rigid shaped article of calcium phosphate in an impregnating liquid for a period of time so that a compressive strength of the resulting impregnated article removed from the impregnating liquid is increased compared to that of the rigid shaped article. The molded calcium phosphate article made according to the present invention may be used as a medical implant or a reinforcing constituent of a composite.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: October 10, 2006
    Assignee: Calcitec, Inc.
    Inventors: Jiin-Huey Chern Lin, Chien-Ping Ju, Chih-Hung Tsai
  • Dual function prosthetic bone implant and method for preparing the same
    Patent number: 7115222
    Abstract: The present invention discloses a prosthetic bone implant made of a hardened calcium phosphate cement having an apatitic phase as a major phase, which includes a dense cortical portion bearing the majority of load and a porous cancellous portion allowing a rapid blood/body fluid penetration and tissue ingrowth.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: October 3, 2006
    Assignee: Calcitec, Inc.
    Inventors: Jiin-Huey Chern Lin, Chien-Ping Ju, Chih-Hung Tsai
  • Dual function prosthetic bone implant and method for preparing the same
    Patent number: 7097792
    Abstract: The present invention discloses a prosthetic bone implant made of a hardened calcium phosphate cement having an apatitic phase as a major phase, which includes a dense cortical portion bearing the majority of load and a porous cancellous portion allowing a rapid blood/body fluid penetration and tissue ingrowth.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: August 29, 2006
    Assignee: Calcitec, Inc.
    Inventors: Jiin-Huey Chern Lin, Chien-Ping Ju, Chih-Hung Tsai
  • Method for making a porous calcium phosphate article
    Patent number: 7097793
    Abstract: The present invention discloses a method for making a porous calcium phosphate article including i) preparing a shaped article from a paste containing a calcium phosphate cement, a pore-forming powder and a setting liquid; ii) immersing the shaped article in an immersing liquid for a period of time so that the pore-forming powder is dissolved in the immersing liquid, creating pores in said shaped article; and iii) removing the resulting porous shaped article from the immersing liquid, wherein the resulting porous shaped article has an improved compressive strength. The porous shaped calcium phosphate article of the present invention may be used as a tissue-engineered scaffold, medical implant or a reinforcing constituent of a composite.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: August 29, 2006
    Assignee: Calcitec, Inc.
    Inventors: Jiin-Huey Chern Lin, Chien-Ping Ju, Yin-Chun Tien, Chih-Hung Tsai, Chao-Chin Ning, Chung-Po Chao
  • Calcium phosphate cement, use and preparation thereof
    Patent number: 7094282
    Abstract: A calcium phosphate cement suitable for use in dental and bone prosthesis is disclosed, which include calcium phosphate particles having a diameter of 0.05 to 100 microns, wherein said calcium phosphate particles on their surfaces have whiskers or fine crystals having a width ranging from 1 to 100 nm and a length ranging from 1 to 1000 nm.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: August 22, 2006
    Assignee: Calcitec, Inc.
    Inventors: Jiin-Huey Chern Lin, Chien-Ping Ju, Wen-Cheng Chen
  • Dual function prosthetic bone implant and method for preparing the same
    Publication number: 20060173477
    Abstract: The present invention discloses a prosthetic bone implant made of a hardened calcium phosphate cement having an apatitic phase as a major phase, which includes a dense cortical portion bearing the majority of load and a porous cancellous portion allowing a rapid blood/body fluid penetration and tissue ingrowth.
    Type: Application
    Filed: February 3, 2005
    Publication date: August 3, 2006
    Inventors: Jiin-Huey Lin, Chien-Ping Ju, Chih-Hung Tsai
  • Dual function prosthetic bone implant and method for preparing the same
    Patent number: 7083749
    Abstract: The present invention discloses a prosthetic bone implant made of a hardened calcium phosphate cement having an apatitic phase as a major phase, which includes a dense cortical portion bearing the majority of load and a porous cancellous portion allowing a rapid blood/body fluid penetration and tissue ingrowth.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: August 1, 2006
    Assignee: Calcitec, Inc.
    Inventors: Jiin-Huey Chern Lin, Chien-Ping Ju, Chih-Hung Tsai
  • Method for making a porous calcium phosphate article
    Patent number: 7083750
    Abstract: The present invention discloses a method for making a porous calcium phosphate article including i) preparing a shaped article from a paste containing a calcium phosphate cement, a pore-forming powder and a setting liquid; ii) immersing the shaped article in an immersing liquid for a period of time so that the pore-forming powder is dissolved in the immersing liquid, creating pores in said shaped article; and iii) removing the resulting porous shaped article from the immersing liquid, wherein the resulting porous shaped article has an improved compressive strength. The porous shaped calcium phosphate article of the present invention may be used as a tissue-engineered scaffold, medical implant or a reinforcing constituent of a composite.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: August 1, 2006
    Assignee: Calcitec, Inc.
    Inventors: Jiin-Huey Chern Lin, Chien-Ping Ju, Yin-Chun Tien, Chih-Hung Tsai, Chao-Chin Ning, Chung-Po Chao
  • Process for producing fast-setting, bioresorbable calcium phosphate cements
    Patent number: 7066999
    Abstract: A fast-setting, bioresorbable calcium phosphate cement is prepared by a process which can be carried out with a heat treatment up to 1000° C. on a mixture of a wetting solution and a calcium phosphate powder having a Ca to P molar ratio of 0.5–2.5. The wetting solution suitable for use in the process of the present invention includes water, an organic solvent, an acidic and basic solution. A setting solution for mixing with the heated powder to form the fast-setting, bioresorbable calcium phosphate cement may be water, an acidic or basic solution according to the process of the present invention.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: June 27, 2006
    Assignee: Calcitec, Inc.
    Inventors: Jiin-Huey Chern Lin, Chien-Ping Ju, Kuan-Liang Lin, I-Chang Wang
  • Dual function prosthetic bone implant and method for preparing the same
    Patent number: 6994726
    Abstract: The present invention discloses a prosthetic bone implant made of a hardened calcium phosphate cement having an apatitic phase as a major phase, which includes a dense cortical portion bearing the majority of load and a porous cancellous portion allowing a rapid blood/body fluid penetration and tissue ingrowth.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: February 7, 2006
    Assignee: Calcitec, Inc.
    Inventors: Jiin-Huey Chern Lin, Chien-Ping Ju, Chih-Hung Tsai
  • Process for affecting the setting and working time of bioresorbable calcium phosphate cements
    Publication number: 20060011100
    Abstract: A fast-setting, bioresorbable calcium phosphate cement is prepared by a process which can be carried out with a heat treatment up to 1000° C. on a mixture of a wetting solution and a calcium phosphate powder having a Ca to P molar ratio of 0.5-2.5. The wetting solution suitable for use in the process of the present invention includes water, an organic solvent, an acidic and basic solution. A setting solution for mixing with the heated powder to form the fast-setting, bioresorbable calcium phosphate cement may be water, an acidic or basic solution according to the process of the present invention.
    Type: Application
    Filed: July 7, 2005
    Publication date: January 19, 2006
    Inventors: Jiin-Huey Lin, Chien-Ping Ju, Kuan-Liang Lin, I-Chang Wang
  • Process for affecting the setting and working time of bioresorbable calcium phosphate cements
    Publication number: 20060011099
    Abstract: A fast-setting, bioresorbable calcium phosphate cement is prepared by a process which can be carried out with a heat treatment up to 1000° C. on a mixture of a wetting solution and a calcium phosphate powder having a Ca to P molar ratio of 0.5-2.5. The wetting solution suitable for use in the process of the present invention includes water, an organic solvent, an acidic and basic solution. A setting solution for mixing with the heated powder to form the fast-setting, bioresorbable calcium phosphate cement may be water, an acidic or basic solution according to the process of the present invention.
    Type: Application
    Filed: July 7, 2005
    Publication date: January 19, 2006
    Inventors: Jiin-Huey Lin, Chien-Ping Ju, Kuan-Liang Lin, I-Chang Wang