Retractable ultrasonic endoscopic aspirator

• US 20090018490A1
• Filed: 07/07/2008
• Published: 01/15/2009
• Est. Priority Date: 07/09/2007
• Status: Active Grant

• Current Assignee: David George Wuchinich
• Original Assignee: David George Wuchinich
• Inventors: Wuchinich, David George
• Granted Patent: US 8,187,168 B2
• Time in Patent Office: Days
• US Class Current: 604/22
• CPC Class Codes: A61B 17/320068 using mechanical vibrations, e.g. ultrasonic A61B17/22012 takes precedence; dental tooth drilling devices operated by vibration A61C3/03; removing intra-ocular material using mechanical vibrations A61F9/00745
• CPC Class Codes: A61B 18/20 using laser
• CPC Class Codes: A61B 2017/32007 with suction or vacuum means
• CPC Class Codes: A61B 2017/320082 for incising tissue
• CPC Class Codes: A61B 2018/00029 open
• CPC Class Codes: A61B 2018/00982 combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes
• CPC Class Codes: A61B 90/361 Image-producing devices, e.g. surgical cameras

Abstract

A surgical instrument comprising a sleeve, a electro-mechanical transducer containing a hollow passage for producing mechanical vibrations in response to a magnetic field, an ultrasonic horn mechanically connected to the transducer, containing a hollow passage communicating with that in the transducer, for amplifying the produced vibration such that dissection of biological tissue is produced and a tip having a hollow passage, mechanically connected to the horn and whose passage communicates with that in the horn, for contacting such tissue, connection of the passage to a source of vacuum and a sheath connected to the instrument and surrounding the tip and horn, with a connection to a source of irrigating fluid and a structure for mounting the transducer and horn within the sleeve permitting retracting and extension of the transducer and horn within and with respect to the sheath. The transducer, horn and tip are immersed in the irrigating solution. The instrument may also include a telescope for viewing the tissue contacting site and provision for electrifying the tip with electro-cauterizing current as well as provision for the use of endo-laser fulguration of the site.

Claims

1. A surgical instrument comprising:

a sleeve;

a vibration source within the sleeve for generating mechanical vibrations in response to a magnetic field applied thereto, said vibration means supported within said sleeve at a point where essentially no vibration occurs;

horn means operatively associated with and vibrated by said vibration source and supported within said sleeve at a point where essentially no vibrational motion occurs;

tip means operatively associated with said horn, and vibrated by said horn means, having a terminus for contacting tissue;

means for extending and retracting said vibration source, horn and tip means within said sleeve while said tip means is vibrating independently of said sleeve;

means for irrigating said work site and vibrating source means with fluid to contact said vibration source means and tissue, and

aspiration means for withdrawing irrigation fluid from said vibration source means and removed biological material from said tissue;

viewing means for visualizing said tip and said tissue.

2. A surgical instrument of claim 1 where said vibration source is made of permanickle sheet material.

3. A surgical instrument of claim 1 where said vibration source is made of ferrite material.

4. A surgical instrument of claim 1 where said viewing means includes a telescope.

5. A surgical instrument of claim 1 where said viewing means includes a camera.

6. A surgical instrument comprising:

a sleeve;

a vibration source within the sleeve for generating mechanical vibrations in response to a magnetic field applied thereto, said vibration means supported within said sleeve at a point where essentially no vibration occurs;

horn means operatively associated with and vibrated by said vibration source and supported within said sleeve at a point where essentially no vibrational motion occurs;

tip means operatively associated with said horn, and vibrated by said horn means, having a terminus for contacting tissue;

means for extending and retracting said vibration source, horn and tip means within said sleeve while said tip means is vibrating independently of said sleeve;

means for irrigating said work site and vibrating source means with fluid to contact said vibration source means and tissue, and

aspiration means for withdrawing irrigation fluid from said vibration source means and removed biological material from said tissue.

means within said sleeve for applying electro-cautery current to said tip;

viewing means for visualizing said tip and said tissue.

7. A surgical instrument of claim 6 where said vibration source is made of permanickle sheet material.

8. A surgical instrument of claim 6 where said vibration source is made of ferrite material.

9. A surgical instrument of claim 6 where said viewing means includes a telescope.

10. A surgical instrument of claim 6 where said viewing means includes a camera.

11. A surgical instrument comprising:

a sleeve;

a vibration source within the sleeve for generating mechanical vibrations in response to a magnetic field applied thereto, said vibration means supported within said sleeve at a point where essentially no vibration occurs;

horn means operatively associated with and vibrated by said vibration source and supported within said sleeve at a point where essentially no vibrational motion occurs;

tip means operatively associated with said horn, and vibrated by said horn means, having a terminus for contacting tissue;

means for extending and retracting said vibration source, horn and tip means within said sleeve while said tip means is vibrating independently of said sleeve;

means for irrigating said work site and vibrating source means with fluid to contact said vibration source means and tissue;

aspiration means for withdrawing irrigation fluid from said vibration source means and removed biological material from said tissue;

means within said sleeve for applying laser coagulation to said tissue;

viewing means for visualizing said tip and said tissue.

12. A surgical instrument of claim 11 where said vibration source is made of permanickle sheet material.

13. A surgical instrument of claim 11 where said vibration source is made of ferrite material.

14. A surgical instrument of claim 11 where said viewing means includes a telescope.

15. A surgical instrument of claim 11 where said viewing means includes a camera.