Device and method for examination of a body cavity

• US 8,157,745 B2
• Filed: 12/06/2005
• Issued: 04/17/2012
• Est. Priority Date: 12/07/2004
• Status: Active Grant

• Current Assignee: Benedictus Christiaan Schoot
• Original Assignee: Benedictus Christiaan Schoot
• Inventors: Schoot, Benedictus Christiaan
• Primary Examiner(s): Hindenburg, Max
• Assistant Examiner(s): NGUYEN, HUONG Q
• Application Number:
  US11/792,440
• Publication Number:
  US 20080275363A1
• Time in Patent Office: 2,324 Days
• Field of Search: 600/587, 600/591, 600/563, 600/562
• US Class Current: 600/563
• CPC Class Codes: A61B 17/3211 Surgical scalpels, knives; Accessories therefor
• CPC Class Codes: A61B 17/42 Gynaecological or obstetrical instruments or methods ligaturing clamps or clips for the umbilical cord A61B17/122; curettage A61B17/320708; dilators A61M29/00
• CPC Class Codes: A61B 17/4241 Instruments for manoeuvring or retracting the uterus, e.g. during laparoscopic surgery
• CPC Class Codes: A61B 2017/0042 with special provisions for gripping

Abstract

The invention relates to a device for carrying out an examination of a wall of a body cavity, in particular a uterus, which device comprises a catheter, supply means for supplying a sterile fluid to the body cavity via an outflow opening of the catheter, a sealing element for sealing the body cavity against leakage of the sterile fluid from the body cavity. The device furthermore comprises gripping means, operating means for operating the gripping means from a position outside the body cavity and transmission means for transmitting operating actions performed at the operating means to the gripping means, said transmission means extending through a further catheter via the sealing element, wherein said further catheter forms the catheter. The invention further relates to a method for examining a body cavity, using such a device.

Claims

1. A device (1) for carrying out an examination of a uterus (20), comprising:

a holder (2) having a tube (3) mounted thereon;

a catheter (5) slidably disposed within said tube (3), and defining an outflow opening (16);

a first operating knob (9), mounted on said holder, operatively connected to said catheter for slidably moving said catheter with respect to said tube (3);

a supply of sterile fluid to be supplied to the uterus (20) via said outflow opening (16) of the catheter (5);

a sealing element (4) mounted on said tube (3) to seal the uterus against leakage of the sterile fluid from said uterus,

the catheter movable slidably with respect to the tube to thereby change a spacing between the sealing element and the outflow opening;

a plunger (6) slidably disposed within said catheter, said plunger (6) having a widened portion (15); and

a second operating knob (12), mounted on said holder (2), operatively connected to said plunger (6) for reciprocably moving said plunger relative to the catheter,

said widened portion (15) of said plunger being positionable to be spaced distally of said outflow opening (16) to permit the sterile fluid to be supplied through the outflow opening to the uterus, said widened portion (15) of said plunger (6) being movable proximally of said outflow opening so that said plunger (6) functions with said catheter (5) to cause the widened portion moving proximally to create a vacuum at said outflow opening (16) to permit a tissue sample from within the uterus (20) to enter said outflow opening (16) for removal from the uterus (20).

2. A device according to claim 1, characterized in that the sealing element is a cervix cone.

3. A device according to claim 1, characterized in that the outflow opening is provided in a circumferential wall of the catheter.

4. A device according to claim 2, characterized in that the outflow opening is provided at an end of the catheter that is positioned in the uterus (20) in use.

5. A device according to claim 1, characterized in that the plunger in the catheter forms a seal that functions to prevent sterile fluid present in the catheter from reaching the outflow opening in a sealing position.

6. A device according to claim 3, characterized in that the plunger is movable from a sealing position proximally of the outflow opening to a position distally beyond the outflow opening so as to open the outflow opening.

7. A device according to claim 1, characterized in that the first operating knob (9) is provided with locking means for locking the catheter against movement with respect to the holder.

8. A device according to claim 7, characterized in that the second operating knob (12) is suitable for causing the plunger to move within the catheter in the locked position of the catheter.

9. A device according to claim 1, characterized in that the holder is provided with a reservoir for the supply of sterile fluid.

10. A device according to claim 9, characterized in that the reservoir for sterile fluid is detachable.

11. A device according to claim 1, characterized in that the holder comprises means for pumping sterile fluid into the uterus via the catheter.

12. A device according to claim 11, characterized in that the pump means and the first and second operating knobs are arranged for being operated with one hand when the holder is held with said one hand.

13. A device according to claim 1, characterized in that the device is at least partially made of a transparent material.

14. A method for examining a uterus, comprising the steps of introducing a sterile fluid into the body cavity by a catheter, for making an ultrasound scan, and removing tissue and/or moisture from the uterus or the wall thereof, characterized in that said steps are carried out by a device according to claim 1.