1
J David Kopf, William Seiler Jr, Gerald S Palecki, Howard H Kaufman: Head positioner. David Kopf Instruments, Bruce H Johnsonbaugh, March 17, 1981: US04256112 (167 worldwide citation)

A head positioner for radiologic and other medical procedures and a method for forming the head positioner are disclosed. A plastic rear component engages the backside of the patient's head, left and right plastic components engage each auditory meatus of the patient and a front component engages th ...


2
William Seiler Jr: Tubular cutting instrument. David Kopf Instruments, March 15, 1977: US04011869 (111 worldwide citation)

A cutting instrument is provided, particularly applicable to vitreous surgery, having an elongated, tubular housing formed with a cutting orifice near its end. A resilient, inner tubular member is slidably mounted coaxially within the tubular housing. The tubular housing is bent in a manner to displ ...


3
William Seiler Jr: Notched tubular cutting instrument. David Kopf Instruments, September 5, 1978: US04111207 (52 worldwide citation)

A notched tubular cutting instrument for use in vitrectomy is provided. An elongated tubular housing is formed with a cutting orifice in its tip. A resilient, inner tubular blade reciprocates within the housing. The housing is bent to bias the blade against the edges of the cutting orifice. The cutt ...


4
Bert L Altmann, J David Kopf: Stereotaxic rotational adaptor. David Kopf Instruments, Bruce H Johnsonbaugh, February 11, 1997: US05601570 (8 worldwide citation)

A rotational adaptor is provided for use with a stereotaxic instrument used in brain research to hold and stabilize the head of a small animal, such as a rat, having a cradle with two ear bars and a nose clamp wherein the cradle may be rotated while maintaining support of the animal's head by the ea ...


5
Joseph Saracione: Stereotaxic holders, stereotaxic alignment systems comprising same, and methods for using same. David Kopf Instruments, Klarquist Sparkman, April 6, 2004: US06716220 (3 worldwide citation)

Apparatus and methods are disclosed for holding a subject body (or body portion, generally termed “body”) at a desired stereotaxic orientation relative to a known reference point, in three-dimensional space, where a reference X-axis, a reference Y-axis, and a reference Z-axis mutually intersect. The ...


6
Bert L Altmann, J David Kopf: Drill press for stereotaxic manipulator. David Kopf Instruments, Bruce H Johnsonbaugh, December 6, 1994: US05370481 (2 worldwide citation)

A drill press is provided for use in conjunction with a three dimensional stereotaxic manipulator. The drill press includes a body carried by a movable member of the manipulator wherein the body has upper and lower segments and at least one guide shaft extending between the segments. A slide which c ...


7
Kopf David J, Kopf Carol F, Renwick Daniel William, Patterson Michael Milton: Stereotaxic instrument with linear coordinate scales coupled to split-image microscopic image display system. David Kopf Instruments, JOHNSONBAUGH Bruce H, June 2, 2005: WO/2005/050559

A stereotaxic instrument is coupled to a split-screen imaging system to provide a split-screen image of the skull of the brain research subject animal along with an image of the X, Y and Z coordinates of the electrode tip (or other tool tip) being used. In addition, a third split-screen image of a r ...