Apparatus and method for debilitating or killing microorganisms within the body

• US 6,491,618 B1
• Filed: 06/22/2000
• Issued: 12/10/2002
• Est. Priority Date: 06/23/1999
• Status: Expired due to Fees

• Current Assignee: Sterilight, Inc.
• Original Assignee: Robert A. Ganz
• Inventors: Ganz, Robert A.
• Primary Examiner(s): Shaver, Kevin
• Assistant Examiner(s): Veniaminov, Nikita R
• Application Number:
  US09/598,653
• Time in Patent Office: 901 Days
• Field of Search: 600/169, 600/476, 600/477, 604/21, 606/2, 606/15, 606/7, 607/88-94
• US Class Current: 600/3
• CPC Class Codes: A61B 18/24 with a catheter A61B18/26, A61B18/28 take precedence
• CPC Class Codes: A61B 2017/22051 with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation A61B2017/22048, A61B2017/3486 take precedence
• 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 2018/2261 with scattering, diffusion or dispersion of light
• CPC Class Codes: A61N 2005/0609 Stomach and/or esophagus
• CPC Class Codes: A61N 2005/0651 Diodes
• CPC Class Codes: A61N 2005/0654 Lamps
• CPC Class Codes: A61N 2005/0661 ultraviolet
• CPC Class Codes: A61N 5/0601 Apparatus for use inside the body
• CPC Class Codes: A61N 5/1001 using radiation sources introduced into or applied onto the body; brachytherapy
• CPC Class Codes: H01J 2235/164 Small cross-section, e.g. for entering in a body cavity
• CPC Class Codes: H01J 35/32 Tubes wherein the X-rays are produced at or near the end of the tube or a part thereof which tube or part has a small cross-section to facilitate introduction into a small hole or cavity

Abstract

A surgical apparatus has a body portion that includes a shaft terminating in a distal head or tip and a means for directing light radiation from the apparatus onto the lining of a body cavity for treating a gastrointestinal ailment of a patient including gastritis, gastric ulcer, duodenal ulcer, gastric cancer, gastric lymphoma, ulcerative colitis, or Crohn'"'"'s disease. The method of use of the apparatus comprises inserting the shaft of the apparatus into a body cavity, e.g., stomach or colon, of the patient to place the distal tip of the shaft in the desired position. The body cavity of the patient is then irradiated with ultraviolet light radiation in a preferred range of about 250 nm to 270 nm so as to kill or debilitate microorganisms lining the body cavity without serious destruction of the body tissue of the patient to thereby improve or alleviate one or more of the symptoms of the gastrointestinal ailment. A probiotic comprising innocuous bacteria can then be administered to the patient to reestablish the growth of normal microbial flora.

Claims

1. An apparatus for killing or debilitating pathogenic microorganisms in the treatment of an infectious gastrointestinal ailment, within a body cavity of a patient including gastritis, gastric ulcer, duodenal ulcer, gastric cancer, gastric lymphoma, inflammatory bowel disease, cytomegalovirus ulcers, ulcerative colitis, or Crohn'"'"'s disease, said apparatus comprising:

an instrument body having an elongated shaft for insertion into a body cavity of the patient,

a light radiation source connected to the shaft for destroying or debilitating microorganisms within the body of the patient,

said light radiation source comprising a lamp for exposing an interior wall of the gastrointestinal tract of the patient to light radiation,

the lamp being constructed to produce radiation that immediately kills or debilitates the microorganisms through apoptosis or program cell death by preventing further replication thereof through mutation or disruption of metabolic processes,

such that the light radiation transmitted from the lamp to the wall of the gastrointestinal tract surrounding the shaft of the apparatus kills or debilitates pathogenic microorganisms supported on or within the epithelium lining the body cavity that is being treated without damage, destruction or ablation of the wall of the body cavity to thereby reduce or alleviate the symptoms of said ailment.

2. The apparatus of claim 1 wherein the lamp is a mercury vapor lamp.

3. The apparatus of claim 1 wherein the lamp is a xenon gas lamp.

4. The apparatus of claim 1 wherein the lamp is affixed by being mounted upon the distal tip of the shaft.

5. The apparatus of claim 1 wherein the lamp is surrounded by an optical filter for modifying the wavelength of the light transmitted to the lining of the body cavity of the patient.

6. The apparatus of claim 1 wherein a protective screen surrounds the lamp to prevent the lamp from injuring the body tissue of the patient.

7. The apparatus of claim 1 wherein the lamp is constructed to produce ultraviolet light radiation at a wavelength between about 200 nm and 400 nm.

8. The apparatus of claim 1 wherein the shaft is a fiber optic bundle, the radiation source is a light source that is coupled to a proximal end of the fiber optic bundle and is located outside of the body of the patient for passing light energy through the fiber optic bundle into the body cavity of the patient to destroy the microorganisms.

9. The apparatus of claim 1 wherein the shaft has one or more cables for manipulating a distribution head at the distal end of said shaft to point the head toward different areas of the body cavity that require treatment.

10. The apparatus of claim 1 wherein the shaft has a viewing port extending therethrough to enable an operator to see where radiation is to be applied.

11. The apparatus of claim 1 wherein the light radiation source is a lamp that is mounted at a distal end of the shaft which during use is located within the body of the patient for directing light radiation from the distal end of the shaft onto the interior wall of the gastrointestinal tract.

12. The apparatus of claim 1 wherein the lamp is a laser.

13. The apparatus of claim 11 wherein the lamp is a laser.

14. An apparatus for killing or debilitating pathogenic microorganisms in the treatment of an infectious gastrointestinal ailment, within a body cavity of a patient including gastritis, gastric ulcer, duodenal ulcer, gastric cancer, gastric lymphoma, inflammatory bowel disease, cytomegalovirus ulcers, ulcerative colitis, or Crohn'"'"'s disease, said apparatus comprising:

an instrument body having an elongated shaft for insertion into a body cavity of the patient,

a light radiation source connected to the shaft for destroying or debilitating microorganisms within the body of the patient,

said light radiation source comprising a pulsed xenon arc lamp for exposing an interior wall of the gastrointestinal tract of the patient to light radiation,

such that the light radiation transmitted from the lamp to the wall of the gastrointestinal tract surrounding the shaft of the apparatus kills or debilitates pathogenic microorganisms supported on or within the epithelium lining the body cavity that is being treated without damage, destruction or ablation of the wall of the body cavity to thereby reduce or alleviate the symptoms of said ailment.

15. An apparatus for killing or debilitating pathogenic microorganisms in the treatment of an infectious gastrointestinal ailment, within a body cavity of a patient including gastritis, gastric ulcer, duodenal ulcer, gastric cancer, gastric lymphoma, inflammatory bowel disease, cytomegalovirus ulcers, ulcerative colitis, or Crohn'"'"'s disease, said apparatus comprising:

an instrument body having an elongated shaft for insertion into a body cavity of the patient,

a light radiation source connected to the shaft for destroying or debilitating microorganisms within the body of the patient,

said light radiation source comprising a lamp that is moveable with respect to the shaft between a recessed position inside the shaft and an extended position spaced from a distal tip of the shaft for exposing an interior wall of the gastrointestinal tract of the patient to light radiation, such that the light radiation transmitted from the lamp to the wall of the gastrointestinal tract surrounding the shaft of the apparatus kills or debilitates pathogenic microorganisms supported on or within the epithelium lining the body cavity that is being treated without damage, destruction or ablation of the wall of the body cavity to thereby reduce or alleviate the symptoms of said ailment.

16. An apparatus for killing or debilitating pathogenic microorganisms in the treatment of an infectious gastrointestinal ailment within a body cavity of a patient including gastritis, gastric ulcer, duodenal ulcer, gastric cancer, gastric lymphoma, inflammatory bowel disease, cytomegalovirus ulcers, ulcerative colitis, or Crohn'"'"'s disease, said apparatus comprising:

an instrument body having an elongated shaft for insertion into a body cavity of the patient,

a light radiation source connected to the shaft for destroying or debilitating microorganisms within the body of the patient,

said light radiation source comprising a lamp for exposing an interior wall of the gastrointestinal tract of the patient to light radiation,

a power supply having a control wired to the lamp for providing the lamp with timed pulses of electrical current for causing the lamp to flash at timed intervals with bursts of light radiation,

such that the light radiation transmitted from the lamp to the wall of the gastrointestinal tract surrounding the shaft of the apparatus kills or debilitates pathogenic microorganisms supported on or within the epithelium lining the body cavity that is being treated without damage, destruction or ablation of the wall of the body cavity.

17. A method of use of a surgical apparatus having a body with a shaft terminating in a distal tip, and a means for directing light radiation from the apparatus onto the lining of a body cavity for treating a gastrointestinal ailment of a patient including at least one of the following:

gastritis, gastric ulcer, duodenal ulcer, gastric cancer, gastric lymphoma, inflammatory bowel disease, cytomegalovirus ulcers, culcerative colitis or Crohn'"'"'s disease, said method comprising;

inserting the shaft of the surgical apparatus into the body of the patient so as to place the distal tip of the apparatus within the gastrointestinal tract of the patient,

irradiating the body cavity of the patient with light radiation so as to kill or debilitate microorganisms lining the body cavity without damage destruction or ablation of the body cavity of the patient,

said inserting and irradiating steps improving or alleviating one or more of the symptoms of said gastrointestinal ailment.

18. The method of claim 17 including the step of irradiating the gastrointestinal tract of the patient with ultraviolet light having a wavelength of between about 200 nm and 400 nm.

19. The method of claim 17 including the step of irradiating the lining of the body cavity with ultraviolet light having a wavelength of between about 250 nm and 270 nm.

20. The method of claim 17 wherein the light radiation is provided by a mercury vapor lamp and including the step of transmitting ultraviolet light from the mercury vapor lamp to the wall of the body cavity of the patient.

21. The method of claim 17 wherein the light radiation is provided by a xenon arc lamp and including the step of providing a series of times pulses of electrical current to the xenon arc lamp to cause the lamp to flash for providing bursts of ultraviolet light at times intervals.

22. The method of claim 17 wherein, following light irradiation, the patient is treated by administering a probiotic to the patient for establishing the growth of innocuous intestinal flora within the intestine of the patient.

23. The method of claim 22 wherein the flora comprises a mixture of non-pathogenic probiotic bacteria and including administering the non-pathogenic probiotic bacteria to the patient until the growth of flora is reestablished within the intestine of the patient.

24. The method of claim 17 wherein the tip of the instrument is inserted into the digestive tract for exposing the lining of the digestive tract to ultraviolet light and, following treatment by exposure to light radiation, the patient is further treated by administering to the patient a probiotic mixture of bacteria that includes one or more of the following:

Lactobacillus acidophilus, Lactobacillus plantarum, Lactobacillus rhamnosus, Bifidobacterium infantis, Bifidobacterium lactis, Bifidobacterium longum and Streptococcos Thermophilus.

25. The method of claim 17 wherein the lining of the body cavity is irradiated with ultraviolet radiation having a wavelength between about 200 nm and 400 nm.

26. The method of claim 17 including the step of administering to the patient a light-sensitizing medication that is preferentially absorbed by pathogenic bacteria within the colon for enhancing the absorption of the ultraviolet light thereby.