Carlos Collazo

US Patent:

6629978, Oct 7, 2003

Filed:

Apr 23, 2001

Appl. No.:

09/841548

Inventors:

Michael J. Schulzki - Boonton NJ
Carlos E. Collazo - Old Greenwich CT
Kenneth Trimmer - Waldwick NJ
Emilio Sanchez - Nutley NJ

Assignee:

Howmedica Osteonics Corp. - Allendale NJ

International Classification:

A61F 500

US Classification:

606 86

Abstract:

IM revision tools include a cutting guide having a coupling (preferably a male dovetail coupling), and a plurality of valgus adapters each having a mating (for example, female dovetail) coupling. According to a preferred embodiment of the invention, ten valgus adapters are provided: left and right with offsets of 0 mm, 2 mm, 4 mm, 6 mm, and 8 mm. All but the 0 mm valgus adapters are provided with dual rotational joints which allow a cutting guide to be positioned in both the anterior-posterior direction as well as in the medial-lateral direction. All but the 0 mm valgus adapters are provided with a reverse clock face below the female dovetail coupling. The methods include selecting the appropriate valgus adapter, attaching the valgus adapter to an IM stem and to the cutting guide, and inserting the IM stem into the femoral canal. If 0 mm offset adapter is not chosen, the cutting guide can be orbited 360Â to position the cutting guide correctly. When the cutting guide is in position the degree of rotation can be determined by reading the reverse clock face on the valgus adapter.

US Patent:

D485342, Jan 13, 2004

Filed:

Jun 5, 2003

Appl. No.:

29/183146

Inventors:

Carlos M. Collazo - Parsippany NJ 07054

International Classification:

2304

US Classification:

D23366

US Patent:

7377924, May 27, 2008

Filed:

Sep 9, 2004

Appl. No.:

10/937587

Inventors:

James W. Raistrick - Hoboken NJ, US
Knute C. Buehler - Bend OR, US
Carlos E. Collazo - Old Greenwich CT, US

Assignee:

Howmedica Osteonics Corp. - Mahwah NJ

International Classification:

A61F 5/00

US Classification:

606 87

Abstract:

A bone cutting guide block has a cutting tool guide surface and a navigation mount for a navigation tracker component for computer aided positioning of the guide for a resection procedure. In various embodiments, the guide includes a rotation means. Preferably, a swivel with a pivot apparatus is provided to limit rotation to permit controlled flexion-extension angle about the pivot with respect to the cutting guide surface. A fixing member through the swivel permits for varus-valgus adjustment of the guide surface. Optionally, a positioning actuator and/or biased resistance actuator implements more regulated flexion-extension angle adjustment with the swivel. Various traversing mechanisms, such as a threaded wheel or pivoted cam tool permit controlled proximal-distal adjustment of the cutting guide surface.

US Patent:

7678115, Mar 16, 2010

Filed:

Jun 21, 2006

Appl. No.:

11/471931

Inventors:

Jerry D'Alessio, II - Belleville NJ, US
Carlos E. Collazo - Old Greenwich CT, US

Assignee:

Howmedia Osteonics Corp. - Mahwah NJ

International Classification:

A61B 17/58
A61F 5/00

US Classification:

606 88, 606 86 R, 606 87, 606 89

Abstract:

A method of preparing a knee joint for receiving a unicondylar knee implant includes preparing a first seating surface at a proximal end of a tibia, and providing a combination bur template and spacer block, the bur template having an upper end, a lower end and a curved surface extending between the upper and lower ends thereof that is adapted to conform to a femoral condyle of a femur and the spacer block extending from the lower end of the bur template and having top and bottom surfaces. The method includes flexing the knee joint so that the prepared first seating surface at the proximal end of the tibia opposes a posterior region of the femoral condyle and inserting the combination bur template and spacer block into the knee joint so that the top surface of the spacer block engages the posterior region of the femoral condyle and the bottom surface of the spacer block engages the first seating surface at the proximal end of the tibia. While the spacer block is maintained between the femur and the tibia, the knee joint is extended until the curved surface of the bur template engages the femoral condyle of the femur. The bur template is anchored to the femur and used to guide burring of the femoral condyle for preparing a second seating surface on the femur.

US Patent:

8377069, Feb 19, 2013

Filed:

Aug 15, 2006

Appl. No.:

11/504420

Inventors:

Jerry D'Alessio, II - Belleville NJ, US
Carlos E. Collazo - Old Greenwich CT, US

Assignee:

Howmedica Osteonics Corp. - Mahwah NJ

International Classification:

A61F 5/00

US Classification:

606 88, 606 86 R, 606 87

Abstract:

A system for forming keel openings in tibial bone includes a plurality of templates having different sizes, each template having a top surface, a bottom surface and a central opening extending between the top and bottom surfaces. The system includes a bone cutting instrument for forming the keel openings and a guide having a leading end that is adapted to be coupled with the templates so that the leading end of the guide is aligned with the central openings in the templates. The guide includes a plurality of slots extending toward the leading end thereof for guiding advancement of the bone cutting instrument through the central openings in the templates. Each slot is associated for use with one of the differently sized templates.

US Patent:

8579905, Nov 12, 2013

Filed:

Sep 12, 2006

Appl. No.:

11/519691

Inventors:

Jerry D'Alessio, II - Belleville NJ, US
Carlos E. Collazo - Old Greenwich CT, US

Assignee:

Howmedica Osteonics Corp. - Mahwah NJ

International Classification:

A61B 17/56

US Classification:

606 88, 606 87

Abstract:

A system for resecting a posterior region of a femoral condyle includes a posterior resection guide having a main body with an upper end and a lower end, a cutting instrument guide surface provided on the main body, and a series of anchor pin holes extending through the main body. The series of anchor pin holes includes a first pair of pin holes located a first distance from the upper end of the main body, a second pair of pin holes located a second distance from the upper end of the main body that is less than the first distance, and a third pair of anchor pin holes located a third distance from the upper end of the main body that is more than the first distance. Anchor pins are insertable through the anchor pin holes for coupling the posterior resection guide with a femoral condyle of a femur.

US Patent:

20080015600, Jan 17, 2008

Filed:

Oct 10, 2006

Appl. No.:

11/545158

Inventors:

Jerry D'Alessio - Belleville NJ, US
Carlos E. Collazo - Old Greenwich CT, US

Assignee:

Howmedica Osteonics Corp. - Mahwah NJ

International Classification:

A61B 17/00

US Classification:

606 79

Abstract:

A method of balancing extension and flexion gaps in a knee joint includes preparing a tibial component seating surface at a proximal end of a tibia, extending the knee joint and measuring an extension gap between the tibial component seating surface and a distal end of a femur, and flexing the knee joint and measuring a flexion gap between the tibial component seating surface and a posterior region of the femur. The extension gap is compared with the flexion gap to determine an amount of bone that is to be removed from the posterior region of the femur for balancing the extension gap with the flexion gap.

US Patent:

20110082425, Apr 7, 2011

Filed:

Oct 2, 2009

Appl. No.:

12/572442

Inventors:

Thies Wuestemann - Nyack NY, US
Michael D. Lynch - Ramsey NJ, US
Carlos E. Collazo - Old Greenwich CT, US

Assignee:

HOWMEDICA OSTEONICS CORP. - Mahwah NJ

International Classification:

A61M 1/00

US Classification:

604151

Abstract:

A device and method for aspirating fluid from a body cavity are disclosed herein. The device disclosed utilizes a reservoir in fluid communication with a needle via a tube connected to a pump. The needle is able to displace a desired distance. Further, the aspirator includes a selector switch capable having three positions. In the first position anticoagulant is pumped through the system. In the second position bone marrow is aspirated but the needle is not moved. In the third position the displacement of the needle is controlled as well as the volume in the reservoir. Further, in the third position, the volume in the reservoir and the needle displacement are proportional to one another.