Vaginal pessary

• US 5,224,494 A
• Filed: 03/19/1992
• Issued: 07/06/1993
• Est. Priority Date: 03/19/1992
• Status: Expired due to Fees

• Current Assignee: Goran E. Enhorning
• Original Assignee: Goran E. Enhorning
• Inventors: Enhorning, Goran E.
• Primary Examiner(s): Brown, Michael A.
• Application Number:
  US07/854,331
• Time in Patent Office: 474 Days
• Field of Search: 128/885, 128/834, 128/830, 128/DIG. 25, 128/836, 128/837, 600/29-31, 606/191, 606/192, 606/193, 606/194, 606/195
• US Class Current: 128/834
• CPC Class Codes: A61F 2/005 with pressure applied to urethra by an element placed in the vagina
• CPC Class Codes: A61F 6/08 Pessaries, i.e. devices worn in the vagina to support the uterus, remedy a malposition or prevent conception , e.g. combined with devices protecting against contagion

Abstract

A vaginal pessary (10 or 34) used to control urinary incontinence or a prolapse, which pessary has a hollow annular body (12 or 36) and an elongated fluid conveying flexible elongated tube (16) which may be stored between the upper and lower surfaces of the annular body when the pessary has been properly inserted into the vagina. The annular body is provided with a diaphragm (20) attached to the inner surface (12.2 or 36.2) of the body, the diaphragm having a central aperture (22). The tube (16) has a coiled shape by making the tube from an elastic material having a memory, by having the tube carry a spring wire (18) forming into a coiled shape, or both. In the illustrated embodiments, a one way valve (24) is provided in an end portion (16.2) of the tube. The valve may be opened by inserting a hypodermic needle carried by a syringe to either cause the body (16) to assume its normal operational volume or to have its volume reduced for insertion or removal. After the annular body has been inserted and it is has attained its normal operational volume, the tube is released and it returns to its coiled shape, retracting into the vagina. Digital manipulation may encourage the coiled tube to fully retract. When the pessary is to be removed, a finger, directed through loops of the coil, will pull out the tube with its valve which reaches well outside the vagina for easy attachment to a hypodermic needle. Fluid may now be withdrawn from the annular body, thereby permitting easy removal.

Claims

1. A vaginal pessary which is easier to insert and remove for cleaning, which has all parts in the vagina when inserted, and which does not give the wearer of the pessary significant discomfort during use, the volume of the pessary being reducible from its normal operational volume for relatively easy insertion and removal;

said pessary comprising;

a hollow annular body for insertion into the vagina, the body having an exterior surface capable of contacting the walls of the vagina when having its normal operational volume so that relative movement of the hollow body with respect to the vagina is restricted;

elongated means for permitting inflation or deflation of the annular body, the elongated means including an elongated tube having first and second ends, the first end being connected to the hollow body in such a manner that a fluid can flow through the tube to or from the hollow body whereby the volume of the body may be changed, the tube being of such a length that, when fully extended, the second end of the tube will extend outwardly of the vagina when the annular body is properly inserted in the body; and

means for maintaining the elongated means within the vagina when the pessary has been properly inserted into the vagina, the means for maintaining the elongated means within the vagina including coil means for imparting a coiled shape to the elongated tube when it is released to cause the tube to retract within the vagina.

2. The vaginal pessary as set forth in claim 1 wherein the coil means comprises tubing material having a coil memory.

3. The vaginal pessary as set forth in claim 1 wherein the coil means is a spring wire carried by the tube.

4. The vaginal pessary as set forth in claim 1 wherein the elongated means further includes a valve assembly located at the outer end of the elongated tube, the valve assembly normally being maintained in a closed position but being shifted into an open position when it is desired to either inflate or deflate the annular body, wherein the elongated tube is formed from an elastic material, the valve assembly including a rigid tube having an inner diameter greater than a portion of the inner diameter of the elastic tube, the rigid tube having a first flanged end and a second end, and the rigid tube being completely disposed within the free end of the elongated tube in such a manner that the elastic tube has first and second portions having conical inner surfaces disposed adjacent the first and second ends of the rigid tube, respectively, a spring having first and second ends, the first end of the spring bearing against the first flanged end of the rigid tube, a valve member slidable within the rigid tube, the valve member having first and second ends, the second end of the spring bearing against the first end of the valve member to normally force the second end of the valve member into contact with the conical inner surface of the second portion of the elastic tube to close said valve assembly.

5. A vaginal pessary which is easier to insert and remove for cleaning, which has all parts in the vagina when inserted, and which does not give the wearer of the pessary significant discomfort during use, the volume of the pessary being reducible from its normal operational volume for relatively easy insertion and removal;

said pessary comprising;

a hollow annular body for insertion into the vagina, the body having an exterior surface capable of contacting the walls of the vagina when having its normal operational volume so that relative movement of the hollow body with respect to the vagina is restricted;

elongated means for permitting inflation or deflation of the annular body, the elongated means including an elongated inflation tube having first and second ends, the first end being connected to the hollow body in such a manner that a fluid can flow through the tube to or from the hollow body whereby the volume of the body may be changed, the tube being of such a length that, when fully extended, the second end of the tube will extend outwardly of the vagina when the annular body is properly inserted in the body; and

means for maintaining the elongated means within the vagina when the pessary has been properly inserted into the vagina, the means for maintaining the elongated means within the vagina including support means carried by the annular body, said support means is a diaphragm extending between the inner surface of the annular body, said diaphragm being provided with an aperture.

6. The vaginal pessary as set forth in claim 5 wherein the elongated means being capable of being digitally manipulated so that it can be pushed through the aperture at the completion of the installation of the annular body and so that the elongated means may be also pulled out through the aperture when it is desired to reduce the volume of the annular body for removal.

7. A vaginal pessary which is easier to insert and remove for cleaning, which has all parts within the vagina when inserted, and which does not give the wearer of the pessary significant discomfort during use, the volume of the pessary being reducible from its normal operational volume for relatively easy insertion and removal;

the pessary comprising;

a hollow annular body for insertion into vagina, the body having an exterior surface capable of contacting the walls of the vagina when having its normal operational volume so that relative movement of hollow body with respect to the vagina is restricted;

elongated means for permitting inflation or deflation of the annular body, the elongated means including an elongated tube having first and second ends, the first end being connected to the hollow body in such a manner that a fluid can flow through the tube to or from the hollow body whereby the volume of the body may be changed, the tube being of such a length that, when fully extended, the second end of the tube will extend outwardly of the vagina when the annular body is properly inserted within the vagina; and

means for maintaining the elongated means within the vagina when the pessary has been properly inserted, the means for maintaining the elongated means within the vagina including

coil means for imparting a coiled shape to the elongated tube when it is released to cause the tube to retract within the vagina, and

support means carried by the annular body for supporting the elongated means within the vagina when the pessary has been properly inserted into the vagina, the support means being a diaphragm which extends between interior surfaces of the annular body, the diaphragm being provided with an aperture through which the elongated means can pass.

8. The vaginal pessary as set forth in claim 7 wherein the elongated tube is formed from an elastic polyurethane material having a coil memory, the tube being provided with a valve assembly, wherein the valve assembly includes a rigid stainless steel tube having an inner diameter greater than a portion of the inner diameter of the polyurethane tube, the rigid stainless steel tube having a first flanged end and a second end completely disposed within the free end of the elongated tube in such a manner that the elastic tube has first and second conical portions disposed adjacent the first and second ends of the tube, a spring having first and second ends, the first end of the spring bearing against the first end of the rigid tube, a valve member in form of a stainless steel rod slidable within the stainless steel tube, the valve member having first and second ends, the second end of the spring bearing against the first end of the stainless steel rod to normally force the second end of the stainless steel rod into contact with the inner surface of said second portion of the elastic tube to normally close the valve.

9. A stress incontinence pessary which is easier to insert and remove for cleaning, which has all parts maintained within the vagina when inserted, and which will not interfere with urination when inserted, and which does not give the wearer of the pessary significant discomfort, the volume of the pessary being reducible from its normal operational volume for relatively easy insertion and removal;

said pessary including;

a hollow annular body for insertion into the vagina, the body having an exterior surface capable of contacting the walls of the vagina when having its normal operational volume so that relative movement of the hollow body with respect to the vagina is restricted, the body including two spaced apart projections, there being a U-shaped surface between the projections, the projection being capable of supporting the vaginal tissue on each side of the urethra when the annular body is inserted into the vagina in such a manner that the tissue between the projections is stretched and can offer counter pressure when intraabdominal pressure is suddenly raised as occurs during coughing, sneezing, laughing, and physical exercise such that the intra-abdominal pressure is transmitted to the upper urethra so that the greatest difference between the intra-urethral and simultaneous bladder pressure remains positive regardless of the changes in intra-abdominal pressure so continence is preserved; and

fluid passageway means for permitting inflation or deflation of the annular body, the fluid passageway means including a flexible elongated tube, the flexible tube having a first end connected to the annular body and a second free end, the flexible tube being of such a length that when fully extended it will extend outwardly of the vagina when the annular body is properly inserted within the vagina;

wherein the improvement comprises

means for supporting the flexible tube within the vagina when the annular body is properly inserted within the vagina, the support means including

coil means for imparting a coiled shape to the elongated tube when it is released to cause the tube to retract within the vagina, and

a diaphragm which extends between interior surfaces of the annular body, the diaphragm being provided with an aperture through which the tube means may pass.