Tissue perforation device and method

• US 20040049127A1
• Filed: 09/10/2002
• Published: 03/11/2004
• Est. Priority Date: 09/10/2002
• Status: Active Grant

• Current Assignee: Aesculap AG (B. Braun Holding GmbH & Co. KG)
• Original Assignee: Aragon Surgical, Inc. (Sartorius AG)
• Inventors: Nezhat, Camran
• Granted Patent: US 7,585,281 B2
• Time in Patent Office: Days
• US Class Current: 600/564
• CPC Class Codes: A61B 17/3403 Needle locating or guiding means guides for suture needles A61B17/0482; guiding or tracking by nuclear magnetic resonance G01R33/285
• CPC Class Codes: A61B 17/3494 with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors for the peridural space A61B17/3401
• CPC Class Codes: A61B 2017/00561 creating a vacuum
• CPC Class Codes: A61B 2017/306 holding by means of suction
• CPC Class Codes: A61B 2017/3492 against the outside of the body

Abstract

A tissue perforation device and method. The device preferably includes a housing having a housing pass-through, a penetrator securely and sealably positioned so that the penetrator device passes through the housing pass-through, and a vacuum system comprising a vacuum source securely and sealably attached through the housing for advancing a patient'"'"'s tissue onto the penetrator device.

Claims

1. A tissue perforation device comprising:

a housing having a housing pass-through;

a penetrator securely and sealably positioned so that the penetrator device passes through the housing pass-through; and

a vacuum system comprising a vacuum source securely and sealably attached through the housing for advancing a patient'"'"'s tissue onto the penetrator device.

2. The tissue perforation device as described in claim 1, wherein the penetrator device is selected from a group consisting of a needle and a trocar.

3. The tissue perforation device as described in claim 2, wherein the penetrator device is a punch biopsy cutting tool.

4. The tissue perforation device as described in claim 1, wherein the housing comprises a housing seal along the perimeter.

5. The tissue perforation device as described in claim 1, wherein the housing is manufactured from a strong non-collapsible material.

6. The tissue perforation device as described in claim 1, wherein the vacuum system is controlled by a vacuum valve or regulator.

7. The tissue perforation device as described in claim 1, wherein the penetrator is securely and sealably positioned by means of the operator'"'"'s fingers braced against the pass-through in the housing.

8. The tissue perforation device as described in claim 5, wherein the material is selected from a group consisting of plastic, plastic composite, rubber, rubber composite, fiberglass, epoxy, glass, and glass composite.

9. The tissue perforation device as described in claim 8, wherein the housing the material is translucent or transparent.

10. The tissue perforation device as described in claim 1, wherein the penetrator further comprises a penetrator valve sealably connected to the penetrator tube.

11. A tissue perforation device comprising:

a housing comprising a translucent or transparent material selected from a group consisting of plastic, plastic composite, rubber, rubber composite, fiberglass, epoxy, glass, and glass composite and having a housing pass-through;

a penetrator securely and sealably positioned through a top center of the housing, the penetrator comprising an insufflation valve located outside the housing and sealably connected to a penetrator tube securely and sealably affixed to a penetrator device located inside the housing; and

a vacuum system comprises a vacuum valve sealably connected to a vacuum tube securely and sealably positioned through the housing for exerting a negative pressure on a tissue wall and elevating the tissue onto the penetrator device.

12. The tissue perforation device as described in claim 11, wherein the penetrator device is selected from a group consisting of Veress needle and trocar.

13. The tissue perforation device as described in claim 11, wherein the penetrator device is a punch biopsy cutting tool.

14. The tissue perforation device as described in claim 11, wherein the vacuum valve is a vacuum regulator.

15. The tissue perforation device as described in claim 11, wherein the housing is separable into at least two sections.

16. The tissue perforation device as described in claim 15, wherein the housing is separable into two half sections, each section having a sealing edge to achieve a vacuum seal and a pass-through to receive the penetrator device.

17. The tissue perforation device as described in claim 11, wherein the housing comprises a bell-shaped body having an opening, and an adapter plate having a pass-through to receive the penetrator device.

18. The tissue perforation device as described in claim 17, wherein the adapter plate forms a vacuum seal with the opening.

19. A method of establishing pneumoperitoneum comprising the following steps:

exerting negative pressure though a vacuum tube into a housing forming a tight seal between the housing seal and an abdominal wall;

forming an abdominal wall bubble within the housing by elevating the abdominal wall away from underlying organs and vascular structures;

piercing the abdominal wall with a penetrator device; and

allowing room air to enter, or injecting inert gas, into the peritoneal space formed between the abdominal wall and the abdominal organs.

20. The method of pneumoperitoneum as described in claim 19, wherein the penetrator device is selected from a group consisting of needle and trocar.

21. The method of pneumoperitoneum as described in claim 19, wherein the penetrator device is a punch biopsy cutting tool.

22. The method of pneumoperiotneum as described in claim 19, wherein the penetrator device contains an optical device or integral camera at the tip to allow direct visualization of the passage through tissue.

23. The method of pneumoperitoneum as described in claim 19, wherein the negative pressure is in the range of about 50 to 250 mm Hg.

24. The method of pneumoperitoneum as described in claim 19, wherein the inert gas is selected from the group consisting of carbon dioxide, helium, nitrogen, and mixtures thereof.

25. The method of pneumoperitoneum as described in claim 19, wherein the housing is separated into two sections after penetration by the penetrator device and the release of the negative pressure and is removed from the abdominal wall, and wherein the penetrator device is left in place through the abdominal wall.

26. The method of pneumoperitoneum as described in claim 19, wherein the housing containing an opening for an adapter plate having a pass-through for the penetrator device is removed from the abdominal wall after penetration by the penetrator device and the release of the negative pressure, and wherein the penetrator device is left in place through the abdominal wall.