PHILIP NICHOLAS SAWYER
Medical Practice in Brooklyn, NY

4390519, Jun 28, 1983

Sep 2, 1980

6/182969

Philip N. Sawyer - Brooklyn NY

A61L 1500

424 28

An improved hemostatic article is made by combining collagen or a collagen-like substance with a pad or sponge. The thusly modified pad or sponge is employed to control or terminate bleeding.

4027392, Jun 7, 1977

May 10, 1976

5/684767

Philip Nicholas Sawyer - Brooklyn NY
Boguslaw Stanczewski - Brooklyn NY

Interface Biomedical Laboratories Corporation - Brooklyn NY

A61C 1300

32 10A

An endosteal tooth in one form is made of an electrically conductive material and is provided with an implant (e. g. , lower) socket portion and a removably mounted crown (e. g. , upper) portion which houses therein a source of electrical current for the implant socket portion. By supplying electrical current or voltage to the implant socket portion, which is embedded in bone in the region of the implantation, the growth of bone is induced and the prevention of infection provided. The rate of growth of the bone and the type of bone growth can be controlled by the amount of current supplied to the implant socket portion. In one embodiment of the invention, the source of electrical current is housed in the crown portion of the tooth which is replaced with a final crown after the growth of bone has been completed. In another form of the invention, the source of electrical current is supplied externally of the tooth. According to different procedures of the invention, current or voltage can be supplied by battery, thermocouple junction or by immersing contacting metals in body fluids.

5156613, Oct 20, 1992

Feb 13, 1991

7/654860

Philip N. Sawyer - Brooklyn NY

Interface Biomedical Laboratories Corp. - Brooklyn NY

A61B 1700

606213

A method of joining or reconstructing biological tissue which comprises applying optical energy to the biological tissue while providing a collagen filler material thereto; denaturing the collagen filler material and biological tissue with the optical energy to cause joining of the collagen filler material and biological tissue, thus joining or reconstructing such tissue.

4011947, Mar 15, 1977

May 22, 1975

5/579791

Philip Nicholas Sawyer - Brooklyn NY

A61F 122, B65D 8554

206363

A prosthetic device is packaged for surgical use by detachably coupling a support to the device, cleaning substantially all of the foreign material from the device, and encapsulating the thusly cleaned device in an openable capsule with the support extending therethrough. The encapsulated device and support attached thereto are further encased in a bag or other like protective device and this packaged assembly is further encased in a box. Sterilization of the whole is effected by means of radiation. In use, the bagged device is subsequently removed from the box and delivered to an operating room or other antiseptic environment whereat the bag is removed and the device handled by means of the support attached thereto. A solution containing, for example, heparin and an antibiotic is injected into the capsule for treating the prosthetic device. Afterwards, the capsule is opened and the prosthetic device is juxtaposed to an installation zone by means of the support.

4167045, Sep 11, 1979

Aug 26, 1977

5/827952

Philip N. Sawyer - Brooklyn NY

Interface Biomedical Laboratories Corp. - Brooklyn NY

A61F 124, A61F 122

3 14

A prosthesis suitable for implantation in a bloody environment. The prosthesis includes a surface material adapted for exhibiting a regular and periodic surface charge characteristic in the bloody environment. A prosthesis means supports the surface material and is adapted to perform a prosthetic function in the bloody environment. In cases where cross-linking is desired and the surface material cannot cross-link with the substrate material, an adaptive material is provided which cross-links both to the surface material and to the material of the prosthesis. In one type of prosthesis, the surface material is aluminized. In another type of prosthesis, acrylamide is applied to the prosthesis. In still another type of prosthesis, agar is applied to the prosthesis in conjunction with gelatin. In another type of prosthesis, albumin is applied to the prosthesis.

4404970, Sep 20, 1983

Jul 22, 1980

6/171191

Philip N. Sawyer - Brooklyn NY

A61B 1712

128325

An improved hemostatic article is made by combining collagen or a collagen-like substance with a pad or sponge. The thusly modified pad or sponge is employed to control or terminate bleeding.

4722725, Feb 2, 1988

May 11, 1987

7/053495

Philip N. Sawyer - Brooklyn NY
Joseph F. Fitzgerald - Queens NY

Interface Biomedical Laboratories, Inc. - Brooklyn NY

A61M 500

604 27

Methods for preventing the introduction of air into the vascular system of a patient during intravenous or intraarterial procedures, as well as for preventing the reflex of fluids into the body of a patient. Also, novel fluid directing means and catheters which include integal or attached fluid flow control means for use in these methods.

3956504, May 11, 1976

Nov 5, 1973

5/412570

Philip Nicholas Sawyer - Brooklyn NY

A61K 31195

424319

In order to render the vascular system stable against the formation of thromboses, daily or periodic doses of a salt of para amino benzoic acid are taken orally or are administered by injection to give the vascular tree an internal surface charge which prevents the formation of thromboses.

5180839, Jan 19, 1993

Aug 30, 1990

7/575515

Philip N. Sawyer - Brooklyn NY
Leon D. Freeman - Corte Madera CA

C07D30732

549316

P-carboethoxy ammonium ascorbate as an anti-thrombotic compound and method of making same from ascorbic acid and ethyl p-amino benzoate.