Process and device for the therapeutic treatment of hemorrhoids

• US 4,142,529 A
• Filed: 06/20/1977
• Issued: 03/06/1979
• Est. Priority Date: 06/20/1977
• Status: Expired due to Term

• Current Assignee: Biosonics, Inc.
• Original Assignee: Biosonics, Inc.
• Inventors: Connor, Gerald I., Estes, Roger Q., Latenser, James S.
• Primary Examiner(s): Cohen, Lee S.
• Application Number:
  US05/807,827
• Time in Patent Office: 624 Days
• Field of Search: 128/401, 128/399, 128/303.1, 128/303.12, 128/254, 128/255, 128/407, 128/303.18, 128/422, 128/408, 128/172.1
• US Class Current: 607/113
• CPC Class Codes: A61B 18/08 by means of electrically-heated probes
• CPC Class Codes: A61F 2007/0028 Rectum
• CPC Class Codes: A61F 5/0093 Rectal devices, e.g. for the treatment of haemorrhoids
• CPC Class Codes: A61F 7/12 Devices for heating or cooling internal body cavities

Abstract

A process and device is described for therapeutically treating hemorrhoids extending from the anal canal wall of a patient. The device includes a stable, anal canal suppository appliance for intimately contacting the anal canal wall and hemorrhoids. The appliance has sufficient length to extend from the anus to the rectum and sufficient diameter to intimately contact the wall tissues without overly stretching the sphincter muscles. The appliance contains an internal electrical resistor for generating heat in response to the application of electrical energy. The device has a portable case containing an electrical energy storage battery and a control circuit for controlling the application of the electrical energy to the resistor to maintain the temperature of the appliance above body temperature and below 45° C.

Claims

1. A proctologic device for the therapeutic treatment of external and/or internal hemorrhoids projecting from the wall of a patient'"'"'s anal canal which extends from the anus to the rectum and is surrounded by sphincter muscles;

comprising;

an anal canal appliance for insertion into the anal canal through the anus;

said appliance having an elongated cylindrical body with an external heat transfer surface extending from a front end to a rear end for intimately contacting the anal canal wall and the projecting hemorrhoids;

said external heat transfer surface having a diameter sufficient to expand the anal canal and effectively transfer heat from the heat transfer surface to the anal canal wall and the hemorrhoids without painfully stretching the sphincter muscles;

said appliance having an electrical resistor heating element mounted internally within the cylindrical body for converting electrical energy to thermal energy;

said appliance having an efficient solid heat transfer medium within the body encapsulating the electrical resistor heating element for transferring thermal energy from the electrical resistor heating element to the external heat transfer surface;

a source of electrical energy;

a cable means extending between the source and the appliance for operatively connecting the source to the electrical resistor heating element;

a temperature transducer in the body for sensing the temperature of the external heat transfer surface and for producing an electrical temperature signal corresponding to the temperature of the external heat transfer surface;

control means operatively connected to the electrical energy source and responsive to the electrical temperature signal for automatically regulating the amount of electrical energy applied to the electrical resistor heating element to heat the external heat transfer surface and to maintain the external heat transfer surface at a preset temperature between body temperature and 45°

C. to thereby relax the sphincter muscles and to facilitate the opening of vascular channels of the hemorrhoids to facilitate shrinkage of the hemorrhoids.

2. The proctologic device as defined in claim 1 wherein the external heat transfer surface has a length between 30 millimeters and 50 millimeters.

3. The proctologic device as defined in claim 1 wherein the external heat transfer surface has an area between five square centimeters and twenty square centimeters.

4. The proctologic device as defined in claim 1 further comprising a portable case capable of being easily carried by the patient and wherein the source of electrical energy includes an electrical storage battery mounted in the case.

5. The proctologic device as defined in claim 4 comprising a recharging network operatively connected to the electrical storage battery and wherein the cable means includes an appliance jack wherein the case has an exposed common electrical connector fixture that is operatively connected to both the recharing network and the control means for receiving either a recharging jack or the appliance jack but not both at any one time.

6. The proctologic device as defined in claim 1 wherein the control means includes an energy control network means for comparing the temperature sensed by the temperature transducer with the preset temperature and for adjusting the rate at which electrical energy is applied to the electrical resistor to maintain the external heat transfer surface at the preset temperature between body temperature and 45°

C.

7. The proctologic device as defined in claim 6 wherein the energy control network means includes a balanced control bridge circuit having a variable resistor in one leg thereof that may be adjusted to a resistance value corresponding to the preset temperature and wherein the balanced control bridge circuit has the temperature transducer electrically connected in another leg thereof.

8. A protologic process for the therapeutic treatment of external and/or internal hemorrhoids projecting from the wall of a patient'"'"'s anal canal, in which the anal canal extends from the anus to the rectum and is surrounded by the sphincter muscles, comprising:

placing an anal canal appliance in the anal canal in which the appliance has an external heat transfer jacket with a diameter sufficient to expand the anal canal to intimately contact the anal canal wall and a length sufficient to extend from the anus to the rectum;

internally heating the jacket to a temperature in the anal canal so that the temperature of the jacket does not exceed 45°

C. to heat the anal canal without injuring anal canal tissues to thereby relax the sphincter muscles and to dilate blood vessels of the hemorrhoids to promote blood flow therein;

sensing the temperature of the jacket in the anal canal; and

automatically controlling the application of heat to the jacket in response to the sensed temperature of the jacket to maintain the temperature of the jacket at a preset temperature above the patient'"'"'s body temperature and below 45°

C.

9. The proctologic process as defined in claim 8 wherein the process includes heating the jacket sufficiently so that the heat flux from the jacket to the surrounding anal canal has a heat flux of between 0.01 watts per square centimeter and 0.10 watts per square centimeter.