Transcavitary myocardial perfusion apparatus

• US 5,591,159 A
• Filed: 11/09/1994
• Issued: 01/07/1997
• Est. Priority Date: 11/09/1994
• Status: Expired due to Term

• Current Assignee: Taheri Enterprises, LLC
• Original Assignee: Syde A. Taheri
• Inventors: Taheri, Syde A.
• Primary Examiner(s): Sykes, Angela D.
• Assistant Examiner(s): HARRIS, SONYA C
• Application Number:
  US08/336,412
• Time in Patent Office: 790 Days
• Field of Search: 606/1, 606/10, 606/11, 606/12, 606/13, 606/14, 606/15, 606/16, 606/17
• US Class Current: 606/15
• CPC Class Codes: A61B 17/320016 Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes A61B10/0233, A61B17/29, A61B17/3207 take precedence
• CPC Class Codes: A61B 17/32053 Punch like cutting instruments, e.g. using a cylindrical or oval knife A61B17/326 takes precedence; trepans A61B17/1695; for use on the cornea A61F9/007
• CPC Class Codes: A61B 18/24 with a catheter A61B18/26, A61B18/28 take precedence
• CPC Class Codes: A61B 2017/00247 Making holes in the wall of the heart, e.g. laser Myocardial revascularization
• CPC Class Codes: A61B 2017/22077 with a part piercing the tissue A61B2017/22044 takes precedence
• CPC Class Codes: A61B 2018/00392 Transmyocardial revascularisation

Abstract

A device for effecting myocardial perfusion is described. The described device comprises a plunger or catheter disposed within a capsule having bulbous members having appended thereto slit needles which are capable of perforating myocardium. The plunger is spring loaded and, when activated, causes the slit needles to emerge from the capsule and excise portions of the myocardium, so permitting perfusion at such sites. Perforation of the myocardium may also be affected by means of a laser beam directed through the luminia of the needle. Use of the described device eliminates long post open heart recovery, and permits patients to return to a productive life shortly after surgery.

Claims

1. Method for the treatment of coronary artery disease which comprises the steps of:

effecting puncture of the femoral artery in the human heart by means of a needle and guide wire,

passing a thin walled sheet and introducer over the guide wire and directing same to the left ventricle of a patient,

removing the introducer and replacing same with a spring handled plunger having a capsule bearing a plurality of slit needles, each of which is anchored in a bulb,

activating the plunger, so causing the slit needles in said capsule to move forward in a plane normal to the plunger and into the myocardium of a patient,

withdrawing the plunger and the slit needles from the myocardium, and effecting perfusion of the myocardium.

2. Method in accordance with claim 1 wherein excision of myocardium is effected during activation and withdrawal of the slit needles from the myocardium.

3. Method in accordance with claim 2, wherein a protective umbrella is appended to the plunger to retrieve excised muscle dislodged during needle puncture.

4. Transcavitary myocardial perfusion device including a cylindrical body having contained therein a spring loaded plunger having a handle at one end, and a capsule at the other end, said capsule having disposed therein a plurality of bulbous members to which are affixed slit needles for effecting perforation of myocardium.

5. Device in accordance with claim 4, wherein said plunger further includes a protective umbrella which is capable of opening and retracting during operation.

6. Device in accordance with claim 4, wherein each of said bulbous members has at least two slit needles affixed thereto, which are disposed in an essentially parallel relationship to each other.

7. Device in accordance with claim 4, wherein perforation of the myocardium may be effected by means of a laser beam directed through the luminia of the needle.