MICHAEL ALIPIO MASINI, MD
Medical Practice in Ypsilanti, MI

2006020, Sep 14, 2006

May 16, 2006

11/435056

Michael Masini - Ann Arbor MI, US

A61B 19/00, A61B 19/08

128849000, 128850000, 128851000, 128852000, 128853000, 128854000, 128855000, 128856000

A surgical drape provides a volume to accommodate radiological equipment such as a C-arm x-ray device without pulling the bottom of the drape up which could otherwise interrupt the sterile field. In one preferred embodiment, the space is created with pleated or gathered section, which receives the equipment as it is brought up laterally without lifting any portion of the material overall. A different embodiment of the invention includes a tunnel or tent formed in the material, generally without pleating. In this case, the tunnel or tent extends from the bottom of the drape to or above a patient-contacting configurations, additional material may be included to form a slit to further shroud the radiological equipment when positioned for a medial-lateral exposure. As yet a further option to all embodiments, the bottom edge of the drape may include an adhesive, integral weights, or both, to keep the bottom edge in close proximity, or actually adhered, to the floor, to further prevent lifting.

6379391, Apr 30, 2002

Sep 15, 1999

09/396576

Michael A. Masini - Ann Arbor MI

MedIdea, LLC - Ann Arbor MI

A61F 228

623 232, 623 2348, 606 95

Apparatus and methods are disposed for maintaining the proper positioning of a prosthetic implant having proximal and distal ends within a prepared bone cavity during cement injection and curing. First stabilization means, implantable within the bone cavity, minimize lateral movement of the distal end of the implant, while second stabilization means, physically separate from the means for minimizing lateral movement of the distal end of the implant, minimize both the lateral movement of the proximal end of the implant and the rotational movement of the implant overall. In the preferred embodiment, the second stabilization means includes an apertured cap removably securable to the end of a bone having the prepared cavity through which the implant is inserted and held in place. This cap, which may either be entirely rigid or include a pliable membrane in the vicinity of the aperture, preferably further includes a first port associated with cement injection and a second port associated with cement over-pressurization. In an alternative embodiment, the second stabilization means includes a manually operated mechanism enabling the implant to be temporarily yet rigidly secured thereto in accordance with a desired orientation, preferably affording adjustments along multiple degrees of freedom prior to the rigid securement thereof.

6398812, Jun 4, 2002

Feb 10, 2000

09/500827

Michael A. Masini - Ann Arbor MI

MedIdea, LLC - Ann Arbor MI

A61F 240

623 1914, 623 1911

A humeral prosthesis features improved anatomic attachment areas for tendon or bone. In the preferred embodiment, in contrast to existing devices, at least one set of tendon/bone attachment points are provided along a line, at least a portion of which is divergent with respect to the axis of the stem. One or more sets of attachment points may be further be provided along a line which is substantially parallel to the axis of the stem, resulting in a “T” “L” or “U” shape. Alternatively, attachment points having a changing degree of diversion with respect to the axis of the stem may be provided along a common, curved line. The attachment points may simply be apertures formed through the body of the implant though, in the preferred embodiment, the apertures are provided on raised tabs. An area of bone-ingrowth material may be provided adjacent the attachment points, and may include a separate fastening mechanism such as a threaded hole to receive a screw. A groove may also be provided in any embodiment to receive the biceps tendon.

6206884, Mar 27, 2001

Jul 15, 1998

9/115960

Michael A. Masini - Ann Arbor MI

MedIdea, LLC - Ann Arbor MI

A61B17/90, 7, A61F2/46

606 89

A reduction-based orthopedic system facilitates the installation of a properly oriented prosthetic component of the type having an articulating surface adapted to co-act in a joint. A trialing component attachable to an anchoring unit includes an articulating surface corresponding to that of the prosthetic component, enabling a desired orientation to be established through a trial reduction. A cutting guide is provided which is physically indexed to the trialing component and the prosthesis, such that when the bone is modified using the guide, the prosthetic component automatically assumes the desired orientation. The apparatus invention may further include apparatus for locking the trialing component into place upon establishing the desired orientation, with the anchoring unit being rigidly coupleable to the anchoring unit bone through attachment to the trialing component in locked position. In an alternative configuration, the bone-cutting guide is coupleable to the anchoring unit through direct attachment.

6273891, Aug 14, 2001

Nov 1, 1999

9/431511

Michael A. Masini - Ann Arbor MI

MedIdea LLC - Ann Arbor MI

A61B 1788

606 91

Methods and apparatus facilitate the positioning of a prosthetic element relative to a bone so as to achieve a desired orientation. An anchoring unit rigidly attaches to a point of the bone surrounding a region associated with receiving the prosthetic element, and at least one structural member is used to physically couple the prosthetic element to the anchoring unit. The combination of the anchoring unit and structural member includes one or more fasteners which may be loosened to temporarily remove the prosthetic element once a desired orientation is achieved, while facilitating re-installation of the element in accordance with the desired orientation following the temporary removal. In a preferred embodiment, the prosthetic element is an acetabular implant, and the surrounding bone forms part of a human pelvis. Regardless of the application, the element may take the form of a trial or a final implant.

6102916, Aug 15, 2000

Apr 1, 1999

9/272546

Michael A. Masini - Ann Arbor MI

MedIdea, LLC - Ann Arbor MI

A61B 1756

606 88

Improved bone cutting guides enable a surgeon to better gauge required resection characteristics. In one embodiment at least a portion of the guide is transparent, thereby enabling the user to optimize cut estimates and to visualize the resection as it is being performed. In another embodiment, at least a portion of the outer surface of the body is shaped to interact with another bone or prosthetic element associated with a joint, thereby enabling the device to function both as a trial and as a cutting guide. In this embodiment as well the guide may be at least partially transparent to improve visualization. Although primarily intended for use in femoral-side knee arthroplasty, the invention is applicable to any procedure which might benefit from improved bone-cutting accuracy.

2007025, Oct 25, 2007

Apr 20, 2006

11/407775

Michael Masini - Ann Arbor MI, US

A61B 17/08

606220000

Instruments and methods facilitate expeditious minimally invasive surgical procedures. A tissue fastener is provided with a female portion and a male portion with a head and a shaft configured to engage with the female portion. A first elongated member is used to hold the female portion of the fastener behind tissue to be repaired. A second elongated member is used to hold the male portion of the fastener in front of tissue to be repaired in alignment with the female portion. The second elongated member is slideable relative to the first elongated member, allowing a user to pierce and compress the tissue as the male portion engages with the female portion. In the preferred embodiment, the male and female portions of the fastener are constructed of a bioabsorbable material such as polylactic acid. The shaft of the male fastener is preferably ribbed or barbed, the female portion of the fastener includes an aperture with features that engage with the ribs or barbs of the male portion, thereby facilitating a desired degree of compression as the portions engage. The head of the male fastener may also be angled for conformance with the outer surface of the tissue undergoing the repair.

2006019, Aug 31, 2006

Apr 21, 2006

11/409404

Michael Masini - Ann Arbor MI, US

A61B 17/15

606087000, 606082000

Apparatus and surgical techniques provide alternative cutting fixtures and other features to improve bone resection accuracy and joint stability. According to one embodiment, stabilizers are removably attached to a cutting guide to temporarily lengthen the surface against which a saw or other cutting device rests. Another embodiment provides differently shaped saw blades, having curved distal ends and right-angle bends applicable to box cuts of the type associated with cruciate sacrifice knee-replacement surgery. Methods are also disclosed whereby the box cuts, distal and posterior augment cuts may be approached from a distal perspective, both laterally and medially. A different embodiment provides a trial/cutting guide having flat surfaces as opposed to curved surfaces adapted for articulation within a joint. Yet a further alternative embodiment teaches a device for determining the joint line relative to a tibia using the fibula as reference.

7585323, Sep 8, 2009

May 7, 2001

09/850659

Michael A. Masini - Ann Arbor MI, US
Martin S. Bancroft - Ann Arbor MI, US

Medlden, LLC - Ann Arbor MI

A61F 2/08, A61F 2/28, C12N 5/00, C12N 5/02

623 1611, 623 1311, 623 1313, 623 1314, 623 1318, 435325

Musculoskeletal tissues produced in vitro are optimized in response to an externally applied mechanical load. The load applied may vary from tissue to tissue, depending upon the response desired, and may include intermittent axial, torsional, and bending loads to produce cortical structures. Compression alone is preferably applied to produce cancellous bone. A method according to the invention for culturing bone in vitro comprises: providing a culture vessel providing a scaffold material, supporting the scaffold material within the tissue culture vessel so as to be exposed to a tissue culture medium, and exerting a force on the scaffold material during growth of a bone construct (a cultured bone growth) around the scaffold material. Applicable apparatus preferably includes a culture vessel, holders for holding a scaffold within the tissue culture vessel, means for introducing a tissue culture medium to the tissue culture vessel, and an actuator adapted to apply a force to developing bone during the in vitro culture of the tissue, whether bone, cartilage, ligament, or composites thereof.