PARVIZ KAMBIN
Medical Practice in Devon, PA

6175758, Jan 16, 2001

Aug 9, 1999

9/370318

Parviz Kambin - Devon PA

A61B 500

600426

The insertion points for guide pins used in percutaneous vertebral fixation by pedicle screw are determined by establishing an approach path on a CT image, measuring on the CT image the distance from the intersection of the approach path and the skin of the patient's back to the patient's midline, and marking off the corresponding distance while visualizing the patient by anteroposterior fluoroscopy. An longitudinally expansible pedicle screw comprises a shaft with bone-engaging threads on a distal portion, machine screw threads on a proximal portion, and a tubular extension having wrench-engageable holes on a proximal face, and internal threads engaging the machine screw threads on the proximal portion of the shaft. An oval cannula accommodates an arthroscope and forceps simultaneously for intervertebral disc surgery.

RE44268, Jun 4, 2013

Jul 20, 2005

11/186016

Parviz Kambin - Devon PA, US

Zimmer Spine, Inc. - Minneapolis MN

A61B 17/00

606190, 606 61, 606 96, 60416401

The insertion points for guide pins used in percutaneous vertebral fixation by pedicle screw are determined by establishing an approach path on a CT image, measuring on the CT image the distance from the intersection of the approach path and the skin of the patient's back to the patient's midline, and marking off the corresponding distance while visualizing the patient by anteroposterior fluoroscopy. An longitudinally expansible pedicle screw comprises a shaft with bone-engaging threads on a distal portion, machine screw threads on a proximal portion, and a tubular extension having wrench-engageable holes on a proximal face, and internal threads engaging the machine screw threads on the proximal portion of the shaft. An oval cannula accommodates an arthroscope and forceps simultaneously for intervertebral disc surgery.

5762629, Jun 9, 1998

May 2, 1996

8/643056

Parviz Kambin - Devon PA

Smith & Nephew, Inc. - Memphis TN

A61M 5178

604164

The present invention os a method and apparatus for performing percutaneous surgical disc procedures. The method includes percutaneously entering the back of a patient in a posterolateral position with an obturator and advancing the obturator through a percutaneously created fenestration of the annulus of the disc. A guide containing an oval shaped bore is placed over the obturator. An elongated member, having a cross-sectional shape such that when placed adjacent to the obturator forms an assembly having an oval cross-section, is inserted through the bore of guide and into the back of the patient and the fenestration of the annulus of the disc, The guide is removed and an oval cannula having a bore with an oval transverse cross-section and a proximal and distal end, is slid downwardly over the obturator and elongated member assembly. The distal end of the oval cannula is inserted into the disc. The obturator and the elongated member assembly are removed from the bore of the oval cannula and multiple surgical instruments are introduced into the oval cannula to perform the surgical procedure.

5964761, Oct 12, 1999

Jul 15, 1997

8/893286

Parviz Kambin - Devon PA

A61B 1770

606 61

The insertion points for guide pins used in percutaneous vertebral fixation by pedicle screw are determined by establishing an approach path on a CT image, measuring on the CT image the distance from the intersection of the approach path and the skin of the patient's back to the patient's midline, and marking off the corresponding distance while visualizing the patient by anteroposterior fluoroscopy. A longitudinally expansible pedicle screw comprises a shaft with bone-engaging threads on a distal portion, machine screw threads on a proximal portion, and a tubular extension having wrench-engageable holes on a proximal face, and internal threads engaging the machine screw threads on the proximal portion of the shaft. An oval cannula accommodates an arthroscope and forceps simultaneously for intervertebral disc surgery.

5242443, Sep 7, 1993

Aug 15, 1991

7/745474

Parviz Kambin - Devon PA

Smith & Nephew Dyonics, Inc. - Andover MA

A61B 1756, A61F 244

606 60

A method for percutaneous fixation of a pair of vertebrae of a patient, which comprises posterolaterally entering the back of a patient percutaneously with a plurality of pedicle screws, screwing each pedicle screw into the medullary canal of the pedicles of adjacent thoracic and/or lumbar vertebrae or the pedicles of the L5 and S1 vertebrae, to a position where the proximal end thereof lies adjacent the fascia of the patient; inserting pedicle screw linkages under the skin of the back of the patient and detachably securing the linkage means to the proximal ends of the screws on the same side of the spinous processes of the vertebrae to restrict relative movement between the vertebrae. A kit is provided for percutaneous fixation of vertebrae of a patient, comprising a plurality of pedicle screws of different sizes, yet of a size to enable the distal end of each screw to be screwed into the medullary canal of a pedicle of a vertebra with the proximal end thereof lying adjacent the fascia of a patient.

5630816, May 20, 1997

May 1, 1995

8/431842

Parviz Kambin - Devon PA

A61B 1756

606 61

A double barrel adjustable clamping system adaptable for use with laminar hooks and pedicular bolts for use by a surgeon for reduction and fixation of a spinal column is disclosed which provides a rigid construct and is independent from the rod system thereby simplifying the surgical installation thereof. Also disclosed are multi-piece round and quadrilateral rod systems which are separated by novel adjustable cross bar assemblies.

8246646, Aug 21, 2012

Sep 26, 2011

13/245017

Parviz Kambin - Devon PA, US
Sheila P. Kambin - Broomall PA, US

A61M 29/00

606192, 606190, 606205

In endoscopic surgery, a retractor having independently spreadable retractor blades mounted at the distal end of a tube is introduced percutaneously. A balloon dissector is passed through the tube and expanded. Following dissection by expansion of the balloon, the balloon is contracted, the tube is advanced, and the dissected tissue is spread by moving the blades apart from each other. The balloon dissector is withdrawn and another instrument is then introduced to carry out surgery on the anatomical structure exposed by the dissection and spreading steps.

5395317, Mar 7, 1995

Oct 30, 1991

7/784693

Parviz Kambin - Devon PA

Smith & Nephew Dyonics, Inc. - Andover MA

A61M 3100, A61M 500, A61B 1000

604 51

A method of percutaneously emplacing at least two cannulae in a patient, such as for percutaneous decompression of a herniated disc, using a guide secured to one cannula to index a second cannula as it is percutaneously advanced into the body. The guide may take the form of jigs adapted to be secured to one cannula with bores arranged to slidingly receive a guidewire or a cannula.

5545228, Aug 13, 1996

Feb 11, 1993

8/016681

Parviz Kambin - Devon PA

Smith & Nephew Richards Inc. - Memphis TN

A61F 244, A61B 1756

623 17

A method for percutaneous fixation of a pair of vertebrae of a patient, which comprises posterolaterally entering the back of a patient percutaneously with a plurality of offset bone bolts, screwing each bone bolt into the medullary canal of the pedicles of adjacent thoracic and/or lumbar vertebrae or the pedicles of the L5 and S1 vertebrae, to a position where the proximal end thereof lies adjacent the fascia of the patient; inserting bone bolt linkages under the skin of the back of the patient and detachably securing the linkage means to the proximal ends of the bolts on the same side of the spinous processes of the vertebrae to restrict relative movement between the vertebrae. A kit is provided for percutaneous fixation of vertebrae of a patient, comprising a plurality of offset bone bolts of different sizes, yet of a size to enable the distal end of each bolt to be screwed into the medullary canal of a pedicle of a vertebra with the proximal end thereof lying adjacent the fascia of a patient.