US6017304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device and method for isolating a surgical site
Assignee: Individual
•
Filing: 1998-04-20
•
Granted: 2000-01-25
•
Expires: 2018-04-20
Abstract
Abstract The invention provides a system and method for performing less-invasive surgical procedures within a body cavity. In a preferred embodiment, the invention provides a system and method for isolating a surgical site such as an anastomosis between an internal mammary artery and a coronary artery in a thoracoscopic coronary artery bypass grafting procedure. The system comprises a foot (11) pivotally coupled to the distal end of a shaft (3) by a linkage (13). The foot has first and second engaging portions (15, 17) with contact surfaces for engaging a tissue surface. The engaging portions are movable between an open position, where the contact surfaces are separated by a gap, and a collapsed position, where the foot is configured for delivery through the percutaneous penetration. An actuator, at the proximal end of the shaft, can be rotated to pivot the foot about a transverse axis so that the contact surfaces are oriented generally parallel to the surgical site to apply pressure to the tissue structure on both sides of the surgical site.
Inventors
- 👤 Mark A. Vierra
- 👤 Alex T. Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:51
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/04; A61B17/0469; A61B17/0483; A61B17/06; A61B17/062; A61B17/11; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B17/02; A61B2017/0237; A61B2017/0243; A61B2017/1107
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
110 words
Apparatus for performing a procedure on a coronary artery on a patient's heart in a patient's body, comprising: a stabilizer having a shaft with a distal end, and a heart engaging member coupled to the distal end of the shaft, the heart engaging member having an atraumatic contact surface configured to engage an outer surface of the patient's heart proximate the coronary artery to stabilize the outer surface sufficiently for performing a procedure on the coronary artery; and a structure adapted to engage the shaft for clamping to the stabilizer to maintain the stabilizer in a fixed position relative to the patient's body, wherein the heart engaging member is ring-shaped.
Claim 2
Dependent Claim
110 words
Apparatus for performing a procedure on a coronary artery on a patient's heart in a patient's body, comprising: a stabilizer having a shaft with a distal end, and a heart engaging member coupled to the distal end of the shaft, the heart engaging member having an atraumatic contact surface configured to engage an outer surface of the patient's heart proximate the coronary artery to stabilize the outer surface sufficiently for performing a procedure on the coronary artery; and a structure adapted to engage the shaft for clamping to the stabilizer to maintain the stabilizer in a fixed position relative to the patient's body, wherein the heart engaging member is ring-shaped.
Claim 3
Dependent Claim
125 words
Apparatus for performing a procedure on a coronary artery on a patient's heart in a patient's body, comprising: a stabilizer having a shaft with a distal end, and a heart engaging member coupled to the distal end of the shaft, the heart engaging member having an atraumatic contact surface configured to engage an outer surface of the patient's heart proximate the coronary artery to stabilize the outer surface sufficiently for performing a procedure on the coronary artery; and a structure adapted to engage the shaft for clamping to the stabilizer to maintain the stabilizer in a fixed position relative to the patient's body, wherein the heart engaging member has two arms extending from the shaft, each arm having an atraumatic surface for engaging the heart.
Claim 4
Dependent Claim
125 words
Apparatus for performing a procedure on a coronary artery on a patient's heart in a patient's body, comprising: a stabilizer having a shaft with a distal end, and a heart engaging member coupled to the distal end of the shaft, the heart engaging member having an atraumatic contact surface configured to engage an outer surface of the patient's heart proximate the coronary artery to stabilize the outer surface sufficiently for performing a procedure on the coronary artery; and a structure adapted to engage the shaft for clamping to the stabilizer to maintain the stabilizer in a fixed position relative to the patient's body, wherein the heart engaging member has two arms extending from the shaft, each arm having an atraumatic surface for engaging the heart.
Claim 5
Independent Claim
20 words
The apparatus of claims 1 or 2 wherein the structure is mounted to an operating table supporting the patient's body.
Claim 6
Independent Claim
16 words
The apparatus of claims 1 or 2 wherein the structure is positionable in the patient's chest.
Claim 7
Dependent Claim
23 words
The apparatus of claim 4 wherein the structure comprises a device for retracting tissue in the patient's chest to provide an opening therein.
Claim 8
Dependent Claim
18 words
The apparatus of claim 5 wherein the stabilizer is movably positionable in the opening of the retracting device.
Claim 9
Dependent Claim
24 words
The apparatus of claim 5 wherein the retracting device comprises a cannula having a passage therein, the stabilizer being movably positionable through the passage.
Claim 10
Dependent Claim
16 words
The apparatus of claim 7 wherein the cannula includes a locking mechanism to clamp the stabilizer.
Claim 11
Dependent Claim
114 words
Apparatus for performing a procedure on a coronary artery on a patient's heart in a patient's body, comprising: a stabilizer having a shaft with a distal end, and a heart engaging member coupled to the distal end of the shaft, the heart engaging member having an atraumatic contact surface configured to engage an outer surface of the patient's heart proximate the coronary artery to stabilize the outer surface sufficiently for performing a procedure on the coronary artery; and a structure adapted to engage the shaft for clamping to the stabilizer to maintain the stabilizer in a fixed position relative to the patient's body, wherein the heart engaging member is pivotable relative to the shaft.
Claim 12
Dependent Claim
114 words
Apparatus for performing a procedure on a coronary artery on a patient's heart in a patient's body, comprising: a stabilizer having a shaft with a distal end, and a heart engaging member coupled to the distal end of the shaft, the heart engaging member having an atraumatic contact surface configured to engage an outer surface of the patient's heart proximate the coronary artery to stabilize the outer surface sufficiently for performing a procedure on the coronary artery; and a structure adapted to engage the shaft for clamping to the stabilizer to maintain the stabilizer in a fixed position relative to the patient's body, wherein the heart engaging member is pivotable relative to the shaft.
Claim 13
Dependent Claim
122 words
Apparatus for performing a procedure on a coronary artery on a patient's heart in a patient's body, comprising: a stabilizer having a shaft with a distal end, and a heart engaging member coupled to the distal end of the shaft, the heart engaging member having an atraumatic contact surface configured to engage an outer surface of the patient's heart proximate the coronary artery to stabilize the outer surface sufficiently for performing a procedure on the coronary artery; and a structure adapted to engage the shaft for clamping to the stabilizer to maintain the stabilizer in a fixed position relative to the patient's body, further comprising at least one hole in the heart engaging member and a lumen in communication with the hole.
Claim 14
Dependent Claim
122 words
Apparatus for performing a procedure on a coronary artery on a patient's heart in a patient's body, comprising: a stabilizer having a shaft with a distal end, and a heart engaging member coupled to the distal end of the shaft, the heart engaging member having an atraumatic contact surface configured to engage an outer surface of the patient's heart proximate the coronary artery to stabilize the outer surface sufficiently for performing a procedure on the coronary artery; and a structure adapted to engage the shaft for clamping to the stabilizer to maintain the stabilizer in a fixed position relative to the patient's body, further comprising at least one hole in the heart engaging member and a lumen in communication with the hole.
Claim 15
Dependent Claim
22 words
The apparatus of claim 10 further comprising a source of suction in communication with the lumen for applying suction through the hole.
Claim 16
Dependent Claim
24 words
The apparatus of claim 10 further comprising a source of irrigation fluid in communication with the lumen for delivering irrigation fluid through the hole.
Claim 17
Independent Claim
107 words
A method of performing a procedure on a coronary artery on a heart in a body of a patient comprising: creating a surgical opening in a chest wall of a patient; passing a stabilizer through the surgical opening, the stabilizer having a heart engaging member with a contact surface; stabilizing the heart by atraumatically engaging an outer surface of the heart with the contact surface of the heart engaging member; clamping the stabilizer to a structure to maintain the stabilizer in a fixed position relative to the patient's body during the step of stabilizing; and performing a procedure on the coronary artery during the step of stabilizing.
Claim 18
Independent Claim
107 words
A method of performing a procedure on a coronary artery on a heart in a body of a patient comprising: creating a surgical opening in a chest wall of a patient; passing a stabilizer through the surgical opening, the stabilizer having a heart engaging member with a contact surface; stabilizing the heart by atraumatically engaging an outer surface of the heart with the contact surface of the heart engaging member; clamping the stabilizer to a structure to maintain the stabilizer in a fixed position relative to the patient's body during the step of stabilizing; and performing a procedure on the coronary artery during the step of stabilizing.
Claim 19
Dependent Claim
18 words
The method of claim 13 further comprising mounting the structure to an operating table supporting the patient's body.
Claim 20
Dependent Claim
19 words
The method of claim 13 further comprising positioning the structure in the surgical opening in the patient's chest wall.
Claim 21
Dependent Claim
23 words
The method of claim 15 wherein the structure comprises a cannula having a passage therein, the stabilizer being movably positionable through the passage.
Claim 22
Dependent Claim
20 words
The method of claim 13 wherein the procedure comprises performing an anastomosis of a graft vessel to the coronary artery.
Claim 23
Dependent Claim
18 words
The method of claim 13 wherein the step of stabilizing comprises compressing the outer surface of the heart.
Claim 24
Dependent Claim
33 words
The method of claim 13 wherein the heart engaging member has at least one hole therein, the method further comprising applying suction through the at least one hole during the step of stabilizing.
Claim 25
Dependent Claim
34 words
The method of claim 13 wherein the heart engaging member has at least one hole therein, the method further comprising delivering irrigation fluid through the at least one hole during the step of stabilizing.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-01-24 | 2003-07-26 | 2004-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-01-24 | 2007-07-26 | 2008-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-01-24 | 2011-07-26 | 2012-01-25 | $7700.00 | Window Closed / Lapsed |