×

Mammographic biopsy needle holder system

  • US 4,821,727 A
  • Filed: 10/30/1986
  • Issued: 04/18/1989
  • Est. Priority Date: 10/30/1986
  • Status: Expired due to Term
First Claim
Patent Images

1. A mammographic biopsy needle holder positioning system for locating a needle holder in a breast to identify a lesion therein that is to undergo biopsy, said system comprising:

  • a biopsy needle holder adapted to be inserted into the breast,x-ray tube means for generating x-ray beams, said x-ray tube means being positioned to direct said x-ray beams so that they pass through the breast of the patient,breast compression means for compressing the breast to reduce the distance through the breast traversed by the x-ray beams, said breast compression means comprising first and second compression plates and means for moving said compression plates relative to each other to compress said breast therebetween,x-ray receptor means for receiving x-rays, said x-ray receptor means being located opposite the x-ray tube means for receiving the x-ray beams after they have traversed the breast and for obtaining a view thereof,C-arm means for holding said x-ray tube means and said x-ray receptor means aligned and spaced apart,a relatively immobile base means for supporting said breast compression means,means for mounting said breast compression means to said base means while enabling said breast compression means to move laterally and transversely on said base means relative to said C-arm means, andpivot means for mounting said C-arm means to said base means for supporting said C-arm means while enabling said C-arm means to pivot around said base means and said compression means for obtaining displays on said receptor means of different views of the biopsy needle holder inserted into the breast in accordance with the angular position of said C-arm means on said base means.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×