IP Library Granted Patent US 8,454,644
Granted Patent B2
US 8,454,644 · App. 11/363,404 · Granted Jun 4, 2013

Switching stick dilation method and apparatus

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Quick Facts
Patent No.
US 8,454,644
App. No.
11/363,404
Granted
Jun 4, 2013
Kind
B2
Abstract

A method of dilating an incision to provide access to a surgical site. Such method may include the steps of making an incision in the skin of a patient near a predetermined surgical site, inserting into the incision a dilator, inserting at least one shoe horn in juxtaposition or in direct apposition with the dilator, removing the dilator from the incision, inserting a blunt dissector adjacent the at least one shoe horn, removing the at least one shoe horn, inserting a retractor or a tube over the blunt dissector and into the incision such that the retractor or tube is at or adjacent the predetermined surgical site, removing the blunt dissector from the incision, and performing a surgical procedure at the predetermined surgical site through the retractor or tube.

Claims (30)

1. A method of dilating an incision to provide access to a surgical site, including the steps of:

making an incision in the skin of a patient near a predetermined surgical site,

inserting into the incision a dilator,

inserting a first shoe horn in juxtaposition or in direct apposition with a first side of the dilator,

inserting a second shoe horn in juxtaposition or in direct apposition with a second side of the dilator, the second side being opposite the first side,

removing the dilator from the incision after the steps of inserting the first and second shoe horns,

inserting a blunt dissector between the first and second shoe horns after the step of removing the dilator,

removing the first and second shoe horns,

inserting a retractor or a tube over the blunt dissector and into the incision such that the retractor or tube is at or adjacent the predetermined surgical site,

removing the blunt dissector from the incision, and

performing a surgical procedure at the predetermined surgical site through the retractor or tube.

2. The method of claim 1 , wherein the step of inserting the blunt dissector includes manipulating the first and second shoe horns to further dilate the tissue.

3. The method of claim 1 , wherein at least one of the first and second shoe horns is arcuately shaped.

4. The method of claim 1 , wherein the blunt dissector is inserted in a space vacated by the dilator.

5. A method of dilating an incision to provide access to a surgical site, including the steps of:

making an incision in the skin of a patient near a predetermined surgical site,

inserting into the incision a dilator,

inserting a first shoe horn in juxtaposition or in direct apposition with a first side of the dilator,

inserting a second shoe horn in juxtaposition or in direct apposition with a second side of the dilator, the second side being opposite the first side,

removing the dilator from the incision,

inserting a blunt dissector adjacent the first and second shoe horns,

moving the first shoe horn apart from the second shoe horn to dilate the tissue during the insertion of the blunt dissector,

removing the first and second shoe horns,

inserting a retractor or a tube over the blunt dissector and into the incision such that the retractor or tube is at or adjacent the predetermined surgical site,

removing the blunt dissector from the incision, and

performing a surgical procedure at the predetermined surgical site through the retractor or tube.

6. The method of claim 5 , wherein the step of inserting the blunt dissector includes inserting the blunt dissector between the first and second shoe horns.

7. The method of claim 5 , wherein at least one of the first and second shoe horns is arcuately shaped.

8. The method of claim 5 , wherein at least one of the first and second shoe horns is shaped along a portion of an oval.

9. The method of claim 5 , wherein the blunt dissector is inserted in a space vacated by the dilator.

Assignments (8)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 8, 2025
From: STRYKER EUROPEAN HOLDINGS I, LLC; STRYKER EUROPEAN OPERATIONS HOLDINGS LLC; STRYKER CORPORATION; STRYKER EUROPEAN OPERATIONS LIMITED; HOWMEDICA OSTEONICS CORP.
To: VB SPINE US OPCO LLC
Reel/Frame 073031/0754 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 23, 2025
From: STRYKER EUROPEAN OPERATIONS HOLDINGS LLC
To: VB SPINE US OPCO LLC
Reel/Frame 072926/0763 →
CHANGE OF ADDRESS Recorded Dec 18, 2024
From: STRYKER EUROPEAN OPERATIONS HOLDINGS LLC
To: STRYKER EUROPEAN OPERATIONS HOLDINGS LLC
Reel/Frame 069730/0754 →
NUNC PRO TUNC ASSIGNMENT Recorded Jun 7, 2020
From: STRYKER EUROPEAN HOLDINGS I, LLC
To: STRYKER EUROPEAN HOLDINGS III, LLC
Reel/Frame 052861/0001 →
CHANGE OF NAME Recorded Jun 7, 2020
From: STRYKER EUROPEAN HOLDINGS III, LLC
To: STRYKER EUROPEAN OPERATIONS HOLDINGS LLC
Reel/Frame 052860/0716 →
NUNC PRO TUNC ASSIGNMENT Recorded Nov 23, 2015
From: STRYKER EUROPEAN HOLDINGS VI, LLC
To: STRYKER EUROPEAN HOLDINGS I, LLC
Reel/Frame 037153/0391 →
NUNC PRO TUNC ASSIGNMENT Recorded Nov 23, 2015
From: STRYKER SPINE SAS
To: STRYKER EUROPEAN HOLDINGS VI, LLC
Reel/Frame 037152/0825 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 16, 2006
From: MCDONNELL, CHRISTOPHER
To: STRYKER SPINE
Reel/Frame 017622/0629 →