Hemispherical vectoring needle guide for discolysis

• US 4,723,544 A
• Filed: 07/09/1986
• Issued: 02/09/1988
• Est. Priority Date: 07/09/1986
• Status: Expired due to Fees

• Current Assignee: Lamb, Steve R., Moore, Robert R.
• Original Assignee: Lamb, Steve R., Moore, Robert R.
• Inventors: Moore, Robert R., Lamb, Steve R.
• Primary Examiner(s): Mancene, Gene
• Assistant Examiner(s): Stone, Cary E.
• Application Number:
  US06/883,561
• Time in Patent Office: 580 Days
• Field of Search: 128/303 B, 128/DIG. 26, 604/51, 604/116
• US Class Current: 606/130
• CPC Class Codes: A61B 17/3403 Needle locating or guiding means guides for suture needles A61B17/0482; guiding or tracking by nuclear magnetic resonance G01R33/285

Abstract

A vectographic guide device for an injection needle in discolysis procedures the device having a target structure and a positioning component on which a guide mount for a needle guide is attached, the target structure and positioning component being supported by an adjustment mechanism attached to an operating table for locating and the target structure and positioning component is a desired location over to operating table, the positioning component having a tracking mechanism to locate the guide mount on the locus of a partial spherical surface area having a center coincident with a target point defined by the target structure.

Claims

1. A vectographic guide device particularly adapted for use as a needle guide for discolysis procedures for directing an injection needle into a spinal disc of a patient on an operating table with the patient having a saggital axis longitudinally oriented to the table, the guide device comprising:

(a) mounting means for connecting the guide devide to the side of an operating table;

(b) a guide mount having means for attaching a tool guide having a specific directional orientation;

(c) a positioning component on which said guide mount is attached;

(d) a target structure having target means for targeting a point in three dimensional space;

(e) adjustable support means supporting said target structure and said positioning component, said support means being connected to said mounting means locating said positioning component and target structure over the operating table in a desired position, wherein said target structure has targeting elements arranged on said structure to define a target point, and wherein said positioning component has spherical surface tracking means for selectively positioning said guide mount on a delimited spherical surface locus equidistant from the target point and directionally oriented toward said target point, and further,

wherein said adjustable support means comprises first carriage means connected to the mounting means for tracking the target structure and positioning component in a first horizontal direction, a screw operated jig means connected to the first carriage means for raising and lowering the target structure and positioning component, pivot means connected to the jig means for angular pivot of the target structure and positioning component in a horizontal plane and second carriage means connected to the pivot means for tracking the target structure and positioning component in a second horizontal direction.

2. A vectographic guide device particularly adapted for use as a needle guide for discolysis procedures for directing an injection needle into a spinal disc of a patient on an operating table with the patient having a sagittal axis longitudinally oriented to the table, the guide device comprising:

(a) mounting means for connecting the guide device to the side of an operating table;

(b) a guide mount having means for attaching a tool guide having a specific directional orientation;

(c) a positioning component on which said guide mount is attached;

(d) a target structure having target means for targeting a point in three dimensional space;

(e) adjustable support means supporting said target structure and said positioning component, said support means being connected to said mounting means locating said positioning component and target structure over the operating table in a desired position, wherein said target structure has targeting elements arranged on said structure to define a target point, and wherein said positioning component has spherical surface tracking means for selectively positioning said guide mount on a delimited spherical surface locus equidistant from the target point and directionally oriented toward said target point, and further,

wherein the positioning component comprises an arcuate arm structure having first, second and third segments wherein said first segment is fixed to said adjustable support means, said second segment is pivotally connected to said first segment on a first pivot axis intersecting said target point, and said third segment is pivotally connected to said second segment on a second pivot axis intersecting said target point angularly displaced from said first axis, said third segment having a distal end on which is mounted said guide mount.

3. The vectographic guide device of claim 2 wherein said target structure comprises said first fixed segment of the positioning component.

4. The vectographic guide device of claim 3 wherein said first segment has an arcuate portion exceeding 90 degrees.

5. The vectographic guide device of claim 4 wherein said target elements comprises a first pair of projecting parallel pins arranged on said first segment in a horizontal plane with pointed ends defining a first line and a second pair of projecting parallel pins arranged on said first segment in a vertical plane with pointed ends defining a second line intersecting the first line defining a target point as the point of intersection.

6. The vectographic guide device of claim 2 wherein said target structure comprises an arcuate arm juxtaposed to said positioning component, said target structure having a first pair of projecting parallel pins arranged in a horizontal plane with pointed ends defining a first line and second pair of projecting parallel pins arranged in vertical plane with pointed ends defining a second line intersecting said first line defining a target point at the point of intersection.

7. A vectographic guide device particularly adapted for use as a needle guide for discolysis procedures for directing an injection needle into a spinal disc of a patient on an operating table with the patient having a sagittal axis longitudinally oriented to the table, the guide device comprising:

(a) mounting means for connecting the guide device to the side of an operating table;

(b) a guide mount having means for attaching a tool guide having a specific directional orientation;

(c) a positioning component on which said guide mount is attached;

(d) a target structure having target means for targeting a point in three dimensional space;

(e) adjustable support means supporting said target structure and said positioning component, said suport means being connected to said mounting means locating said positioning component and target structure over the operating table in a desired position, wherein said target structure has targeting elements arranged on said structure to define a target point, and wherein said positioning component has spherical surface tracking means for selectively positioning said guide mount on a delimited spherical surface locus equidistant from the target point and directionally oriented toward said target point, and further,

wherein said spherical surface tracking means comprises a positioning structure having a first segment attached to the adjustable support means and an arcuate second segment with a first end pivotally connected to the first segment on a pivot axis intersecting said target point, said arcuate second segment having a slide support and a tracking means for tracking an arcuate path about the target point as centerpoint, said guide mount being carried by said slide support.

8. A vectographic guide device particularly adapted for use as a needle guide for discolysis procedures for directing an injection needle into a spinal disc of a patient on an operating table with the patient having a sagittal axis longitudinally oriented to the table, the guide device comprising:

(a) mounting means for connecting the guide device to the side of an operating table;

(b) a guide mount having means for attaching a tool guide having a specific directional orientation;

(c) a positioning component on which said guide mount is attached;

(d) a target structure having target means for targeting a point in three dimensional space;

(e) adjustable support means supporting said target structure and said positioning component, said support means being connected to said mounting means locating said positioning component and target structure over the operating table in a desired position, wherein said target structure has targeting elements arranged on said structure to define a target point, and wherein said positioning component has spherical surface tracking means for selectively positioning said guide mount on a delimited spherical surface locus equidistant from the target point and directionally oriented toward said target point, and further,

wherein said mounting means for connecting the guide device to the side of an operating table includes a clamp member having means to clamp the clamp member to the side rail and ball interconnecting means for interconnecting said clamp member and said adjustable support means with universal ball joint pivot within a delimited range.

9. A vectographic guide device particularly adapted for use as a needle guide for discolysis procedures for directing an injection needle into a spinal disc of a patient on an operating table with the patient having a sagittal axis longitudinally oriented to the table, the guide device comprising:

(a) mounting means for connecting the guide device to the side of an operating table;

(b) a guide mount having means for attaching a tool guide having a specific directional orientation;

(c) a positioning component on which said guide mount is attached;

(d) a target structure having target means for targeting a point in three dimensional space;

(e) adjustable support means supporting said target structure and said positioning component, said support means being connected to said mounting means locating said positioning component and target structure over the operating table in a desired position, wherein said target structure has targeting elements arranged on said structure to define a target point, and wherein said positioning component has spherical surface tracking means for selectively positioning said guide mount on a delimited spherical surface locus equidistant from the target point and directionally oriented toward said target point, and further,

wherein said support means is adjustable to a variety of positions, with said positioning component and target structure arranged to maintain the position of said guide mount equidistant and directionally oriented toward said target point at all positions of said support means and at all positions of said guide mount on said dilimited spherical surface locus.