IP Library Granted Patent US 7,347,967
Granted Patent B2
US 7,347,967 · App. 10/468,835 · Granted Mar 25, 2008

Plastic system and method of porous bioimplant having a unified connector

Assignee: Isan Biotech Co.
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Quick Facts
Patent No.
US 7,347,967
App. No.
10/468,835
Granted
Mar 25, 2008
Kind
B2
Abstract

The present invention relates to a system and a method of manufacturing a porous bio-implant having a connecting member integrally formed therewith, and more particularly, to a system and a method of manufacturing a porous bio-implant in which a connecting member is integrally formed by sintering a metal powder by a high voltage instant discharge in the state that the connecting member is inserted in a pyrex tube and then the metal powder is put in the pyrex tube. A system of manufacturing a porous bio-implant having a connecting member formed integrally therewith includes a power supply supplying a low voltage; a voltage booster for boosting the low voltage supplied from the power supply to a high voltage; a condenser charging the high voltage boosted by the voltage booster through a switch; a vacuum switch for instantaneously discharging the high voltage charged in the condenser; and a bio-implant manufacturing apparatus for manufacturing a bio-implant by the high voltage discharged instantaneously from the vacuum switch.

Claims (15)

1. A method of manufacturing a porous-bio-implant having a connecting member formed integrally therewith, comprising the steps of:

inserting a connecting member into an upper opening of a pyrex tube;

inserting a metal powder into the pyrex tube through a lower opening of the pyrex tube;

inserting an upper electrode through the upper opening of the pyrex tube and resting the upper electrode on an upper surface of the connecting member, and inserting a lower electrode through the lower opening of the pyrex tube;

supplying a low voltage from a power supply that is connected to the upper and lower electrodes;

boosting the low voltage to a high voltage by subjecting the low voltage to a voltage booster;

charging the high voltage boosted by the voltage booster in a condenser through a first switch; and

discharging the high voltage charged in the condenser instantaneously through a vacuum switch to sinter the metal powder in the pyrex tube, thereby forming a bio-implant, having a porous outer layer and a inner solid tissue, integrally with the connecting member.

2. The method of claim 1 , wherein inserting a connecting member further comprises inserting a connecting member, which includes a connecting member main, a header portion integrally formed on an upper central portion of the connecting member main and a screw aperture, into an upper opening of a pyrex tube.

3. The method of claim 1 , wherein supplying a low voltage further comprises supplying a voltage in the range of about 100 volts to about 200 volts from a power supply that is connected to the upper and lower electrodes.

4. The method of claim 1 , wherein boosting the low voltage to a high voltage further comprises boosting the low voltage to a high voltage in the range of about 1000 volts to about 5000 volts.

5. The method of claim 1 , wherein boosting the low voltage to a high voltage further comprises boosting the low voltage to a high voltage of about 2500 volts.

6. The method of claim 1 , further comprising pressurizing the metal powder in the pyrex tube by applying pinch pressure between the upper and lower electrodes.

7. The method of claim 1 , further comprising choosing the metal powder based on a size to determine a surface roughness of the resulting porous bio-implant.

8. The method of claim 1 , further comprising choosing the connecting member based on a size to determine a compression strength of the resulting bio-implant.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 24, 2014
From: ISAN BIOTECH CO.
To: FINEPLATECH CO., LTD
Reel/Frame 034248/0980 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 2, 2003
From: KIM, KIJU; LEE, WONHEE; JUNG, JONGKYUN
To: ISAN BIOTECH CO.
Reel/Frame 014895/0696 →
Priority Claims (2)
KR 2001-10792 · Mar 2, 2001 · national
KR 2001-08347 · Nov 3, 2001 · national
Continuity (1)
Related Publication 20040076538A1 · Apr 22, 2004