Device for anchoring a trocar

• US 8,628,468 B2
• Filed: 06/24/2011
• Issued: 01/14/2014
• Est. Priority Date: 10/01/2008
• Status: Expired due to Fees

• Current Assignee: David L. Zisow
• Original Assignee: David L. Zisow
• Inventors: Zisow, David L.
• Primary Examiner(s): Houston, Elizabeth
• Application Number:
  US13/168,586
• Publication Number:
  US 20110319826A1
• Time in Patent Office: 935 Days
• Field of Search: 606/185, 606/108, 606/184, 600/114, 600/115, 600/127, 600/129, 600/184, 600/201, 604/164.01, 604/164.03, 604/164.04, 604/164.08
• US Class Current: 600/184
• CPC Class Codes: A61B 17/3417 Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating syringe needles A61M5/32; dilators A61M29/00
• CPC Class Codes: A61B 17/3496 Protecting sleeves or inner probes; Retractable tips for protecting body piercing guide needles A61M25/0612
• CPC Class Codes: A61B 2017/00473 Distal part, e.g. tip or head A61B2017/00464 takes precedence
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/3454 Details of tips
• CPC Class Codes: A61B 2017/346 with wings
• CPC Class Codes: A61B 2017/3484 Anchoring means, e.g. spreading-out umbrella-like structure

Abstract

A device for anchoring a trocar is disclosed. The device may include a spacer and a device having a main body and a device sleeve. A device tip may be hingedly connected to a distal end of the device sleeve. The spacer and the device may be configured to be assembled together with a trocar and an obturator. The spacer may provide distance between the device tip and an open distal end of the trocar sleeve when the obturator, trocar, spacer, and device are assembled together. Once the assembled parts are inserted into a body cavity the obturator, trocar, and spacer may be removed. Inside the body cavity, the device sleeve may receive the trocar sleeve. As the trocar sleeve progresses through the device sleeve, the open distal end of the trocar sleeve may push the device tip from a first position to a second position, anchoring the device.

Claims

1. A device for anchoring a trocar within a body cavity, comprising:

a device main body defining a device aperture therethrough;

a device sleeve extending from the device main body, the device sleeve having a proximal end and an open distal end and defining a sleeve aperture in communication with said device aperture;

a device tip having a proximal end configured to be retained within the sleeve aperture at the open distal end of the device sleeve and a distal end opposite the proximal end; and

the device tip being hingedly connected to the open distal end of the device sleeve such that the device tip may be moved from a first position in which the distal end of the device tip is aligned with the longitudinal axis of the device sleeve, to a second position in which the distal end of the device tip is angled with respect to the longitudinal axis of the device sleeve.

2. The device according to claim 1, wherein the device sleeve is configured to receive a trocar sleeve and the device tip is configured to move from the first position to the second position by the distal end of the trocar sleeve inserted into the device sleeve.

3. The device according to claim 2, wherein the device tip is configured to be held in the second position by the trocar sleeve when the trocar sleeve is inserted into the device sleeve and protrudes from the open distal end of the device sleeve.

4. The device according to claim 1, wherein the device tip includes a single piece forming a substantially conical shape.

5. The device according to claim 4, wherein the device tip includes at least one separator disposed on an exterior surface of the device tip.

6. The device according to claim 1, wherein an interior portion of the device tip includes an annular lip configured to be received by the open distal end of the device sleeve to retain the annular lip within the open distal end.

7. The device according to claim 6, wherein the device sleeve is configured to receive a trocar sleeve and the annular lip is configured to be moved by the distal end of a trocar sleeve inserted into the device sleeve.

8. The device according to claim 1, wherein the top portion is configured to receive a trocar main body and the top portion includes a retaining tab configured to retain the trocar main body on the top portion.

9. The device according to claim 1, further comprising a spacer having a first surface configured to connectedly attach to a trocar main body, and a second surface configured to attach to the device main body, said spacer defining a spacer aperture in communication with said main body aperture when the spacer is assembled to the device, said spacer aperture configured to receive the trocar main body.

10. A device for anchoring a trocar within a body cavity, comprising:

a device main body having a top surface and a bottom surface opposite the top surface, said device main body defining a main body aperture therethrough;

a device sleeve defining a sleeve aperture in communication with said main body aperture, the sleeve aperture and the main body aperture both being configured to receive an obturator tube having a cone-shaped distal end, the device sleeve having its proximal end attached to and extending from the device main body bottom surface, and an open distal end; and

a device tip hingedly connected to the distal end of said device sleeve and having a proximal end with a first lip configured to receive the obturator tip having a substantially conical tip within the first lip, wherein the proximal end of the device tip is configured to be retained within the sleeve aperture.

11. The device according to claim 10, wherein the device tip comprises a single piece, substantially conical shaped element.

12. The device according to claim 10, wherein the top surface has a recess configured to receive a trocar main body.

13. The device according to claim 12, wherein the first lip is configured to receive an obturator tip having at least one separator and the first lip includes at least one notch configured to receive the at least one separator.

14. The device according to claim 10, wherein the first lip is annular and is configured to receive an obturator tip having a first separator and a second separator and wherein the first lip includes a first notch and a second notch, the first notch configured to receive the first separator and the second notch configured to receive the second separator.

15. The device according to claim 14, wherein the proximal end of the device tip includes a second lip configured to be received by the open distal end of the device sleeve to retain the device tip on the open distal end of the device sleeve.

16. The device according to claim 12, wherein the proximal end of the device tip includes a second lip configured to be received by the open distal end of the device sleeve to retain the device tip on the open distal end of the device sleeve.

17. The device according to claim 16, wherein the proximal end of the device tip includes a hinge connecting the proximal end of the device tip to the open distal end of the device sleeve.

18. The device according to claim 10, further comprising a spacer having a first surface configured to connectedly attach to a trocar main body, and a second surface configured to attach to the device main body, said spacer defining a spacer aperture in communication with said main body aperture when the spacer is assembled to the device, said spacer aperture configured to receive the trocar main body.

19. A device for anchoring a trocar within a body cavity, comprising:

a device main body defining a main body aperture configured to receive a trocar sleeve;

a device sleeve having an attachment end and an open free end and defining a sleeve aperture, said device sleeve attached to said device main body such that said main body aperture and sleeve aperture are in communication and configured together to receive a trocar sleeve;

a device tip having a proximal end movably attached to the free end of said device sleeve such that the device tip is movable from a first position in which said device tip is aligned with respect to the longitudinal axis of said device sleeve, to a second position in which said device tip is angled with respect to the longitudinal axis of said device sleeve, and wherein the proximal end of the device tip has an annular lip configured to be retained within the device sleeve aperture; and

a hinge connecting said device tip to the open end of said device sleeve, the hinge providing pivotable movement between the first position and the second position.

20. The device according to claim 19, further comprising:

a spacer defining a spacer aperture in communication with said main body aperture, said spacer having a spacer first surface and a spacer second surface opposite the spacer first surface, the spacer first surface configured to engage the trocar and the spacer second surface configured to attached to the device main body, wherein the device main body has a recess configured to receive the spacer second surface.