MR. ROBERT JAMES SCHENCK, M.D.
Osteopathic Medicine at Huron St, Chicago, IL

4553542, Nov 19, 1985

Jun 15, 1983

6/504683

Robert R. Schenck - Chicago IL
Harry P. Weinrib - Chicago IL

A61B 1711

128334R

The invention provides encircling devices by which anatomical structures, such as blood vessels, fallopian tubes, ureters, vas deferens and outer nerve sheaths are anastomosed. Such an encircling device provides an opening that receives an end of a tubular anatomical structure having a prepared opening, and the tubular structure is anastomosed to a second anatomical structure having a prepared opening by tethering the two structures to the encircling device holding the structures under radial stress in apposition to each other to form a fluid-tight peripheral seal around their openings. Encircling devices are also used to join a tubular anatomical structure to a second anatomical structure having a cavity, e. g. , a fallopian tube to a uterus or a uterer to the bladder. The tubular structure is received in the opening of the encircling device and tethered thereto to hold its end open, and then the encircling device is extended through a passageway in the second anatomical structure by means of a trocar, and when the trocar is withdrawn, the large size of the device compared to the passageway, which naturally constricts, prevents the device from removing itself.

4624255, Nov 25, 1986

May 14, 1985

6/734389

Robert R. Schenck - Chicago IL
Harry P. Weinrib - Chicago IL

A61B 1711

128334R

To effect a simple anastomosis of a pair of severed blood vessel portions in a manner which insures patency of the anastomozed blood vessel, a member, preferably in the form of a ring, has structure for tethering the blood vessel portions thereto under radial stress with the intima of the blood vessel portions apposed. During surgery, the ring is disposed around an end of one of the severed blood vessel portions, and the blood vessel portions are tethered to the ring at at least three spaced apart locations stressing the blood vessel portions radially outward in several directions to evert the intima and hold the intima of the two portions against each other. To hold blood vessel portions in close proximity during anastomosis, a pneumatic clamping device is provided which grips the blood vessel portions with a precise force according to the fluid pressure supplied thereto. Precise control of gripping force assures a firm grip that is not excessive and does not damage the blood vessel portions. Preferably a portion of the clamping device is integrally formed with the ring and is frangible therefrom permitting the clamping device and ring to be prepackaged in a sterile container with the ring prepositioned relative to the clamping device and separated upon completion of the anastomosis.

4593693, Jun 10, 1986

Apr 26, 1985

6/727546

Robert R. Schenck - Chicago IL

A61B 1711, A61B 1728

128334R

A device for anastomosing a pair of living vessels includes a ring having at least two integrally formed hooking protrusions and an integrally formed tab by which the surgeon positions the ring. The surgeon draws an end of a first vessel through the ring and impales the wall of the vessel on the protrusions, thereby everting the first vessel. Next the surgeon hooks the second vessel wall on the protrusions to appose the intima of the vessels and anastomose the vessels. Then the surgeon detaches the tab. By using the tab to hold the ring and a forceps to manipulate the vessels, in turn, the surgeon can very rapidly join the vessels together without assistance and without approximating clamps. To aid in anastomosing vessels to a ring having outwardly-extending hooking protrusions, a microsurgical forceps is provided in which very small forked tips at the ends of the forceps. The vessel is gripped with the forceps, and the openings between the fork prongs are placed adjacent to the ends of the hooking protrusions.

5746704, May 5, 1998

Aug 4, 1995

8/511144

Robert R. Schenck - Chicago IL
Walter Richard Krevald - Des Plaines IL

A61H 100

601 40

An apparatus are provided for flexing a body member to rehabilitate the same. For early motion of flexure tendons or the like, very small ranges, for example, 2. degree. to 5. degree. of tension and flexion may be set at opposite ends of a full range of motion for the joint. The drive motor is preferably a stepper motor or the like that is controlled by a microprocessor-based controller to travel through small, variable, early motion ranges for tension and flexion of variable distances and for a variable number of cycles. The illustrated apparatus for pulling a carriage for travel in a forward or reverse direction compresses a slide guide for guiding the carriage for sliding travel thereon about a predetermined path having a curved portion about which the carriage slides when being pulled in a forward direction and in a reverse direction. A flexible tension member is associated with the slide guide and connected to the carriage to exert a pulling force on the carriage to cause it to slide in forward and reverse directions along the slide guide in the predetermined path having a curved portion. The drive is connected to the flexible tension member to exert a pull on the tension member to cause it to travel in either in a forward or reverse direction and to pull the carriage to slide on the slide guide in the same direction as the tension member is pulled.

4607625, Aug 26, 1986

Jan 10, 1985

6/690461

Robert R. Schenck - Chicago IL

A61H 102

128 26

A device is provided for tractioning a finger having a fractured bone and at the same time continuously flexing and extending the joint to which the fractured bone is proximally attached in order to prevent joint deterioration. A cast-like support structure is attachable to the forearm and hand for substantially immobilizing the wrist joint and joints of the hand proximal to the joint which is immediately proximally connected to the broken bone. Connected to the support structure is an actuator movable in a substantially arcuate path which is substantially in the plane of the natural movement of the finger, outward of the tips of the fingers and with the proximal connecting joint substantially at the radial center. The preferred actuator includes a motor driven carriage which is carried by the frame and is movable first in one direction and then in the other direction along the arcuate path. Elastomeric bands tension the broken finger to the carriage so that it follows the reciprocating carriage, first to extend the finger and then to flex the finger, bending occurring primarily at the proximally connected joint.

5472407, Dec 5, 1995

Oct 13, 1993

8/135904

Robert R. Schenck - Chicago IL

A61H 100

601 40

In accordance with the present invention, there is provided a portable hand mounted device for tractioning a finger having a fractured bone and at the same time continuously flexing and extending the joint to which the fractured bone is proximally attached in order to prevent joint deterioration. More particularly, the device may be made in an inexpensive manner by medical personnel and is a light, less cumbersome device than that in the prior art. A drive motor is carried by a cast-like support which is attachable to the forearm and hand for substantially immobilizing the wrist joint and joints of the hand proximal to the joint which is immediately proximally connected to the broken bone. The support carries a frame or hoop defining a substantially arcuate path of motion for carriage travel while flexing and extending the joint of the fractured finger. The carriage rides on the hoop first in one direction and then in the other direction along the arcuate path.

4693249, Sep 15, 1987

Jan 10, 1986

6/817825

Robert R. Schenck - Chicago IL
Harry P. Weinrib - Chicago IL

A61B 1704

128334R

Ring-shaped anastomosis devices have outwardly extending protrusions for impaling a pair of living vessel ends thereon without the need for sutures. A first vessel end is inserted through a central opening of a device, everted around the end of the device and impaled on the protrusions; then a second vessel end is drawn over the everted first vessel end and similarly impaled on the protrusions. To facilitate impaling the vessel ends on the protrusions and to minimize tearing of the vessel walls during the impaling process, the devices are incomplete rings, each having a first ring end and a second ring end. A device has a contracted configuration in which it is maintained during the impalation process to hold the protrusions relatively close to each other and an expanded configuration in which it is maintained subsequent to joining the vessel ends thereto to hold the vessels in a slightly stretched condition and with their intima apposed.

4474181, Oct 2, 1984

Feb 18, 1982

6/349885

Robert R. Schenck - Chicago IL

A61B 1711

128334R

A member, preferably in the form of a ring, is provided to simplify anastomosing severed ends of blood vessels and insuring patency of the anastomized blood vessels. The member has an interior surface significantly larger than the outside diameter of the blood vessel and means at least three spaced-apart locations for tethering blood vessel-connecting sutures thereto. The ring is disposed around one of the severed ends of the blood vessel, the ends of the blood vessel are connected with at least three sutures at spaced apart locations and the sutures are tethered to the ring to apply outward radial stress to the connected blood vessels, which radial stress in several directions helps to assure patency of the anastomosed blood vessel.

2005018, Aug 18, 2005

Feb 11, 2005

11/056650

Robert Schenck - Chicago IL, US

A61B017/08

606153000

An anastomosis ring for interconnecting ends of living vessels in apposition of the ring having a tubular body with an annular wall surrounding a hollow bore. A plurality of impaling projections are provided at one end of the tubular member and a plurality of impaling projections are provided at the other end of the tubular member to impale a vessel end. A coupler device with a detachable connection holds the anastomosis ring adjacent the severed vessel ends. A first vessel end is inserted through a hollow bore of the tubular member and everted and impaled on the impaling projections. The second vessel end is drawn over the everted first vessel end and the intimas of the respective vessel ends are being brought into apposition and the second vessel and is impaled on the impaling projections. The anastomosis ring is then disconnected from the coupler device.