Evaluation of Safety and Efficacy of the EndoLift Liver Retractor

Duke University

Status: Withdrawn

Conditions: Laparoscopic Heller Myotomy; Laparoscopic Sleeve Gastrectomy; Laparoscopic Gastric Banding; Minimally Invasive Surgical Procedure; Laparoscopic Roux-en-Y Gastric Bypass; Laparoscopic Fundoplication Procedure; Laparoscopic Paraesophageal Hernia Repair; Laparoscopic Gastric Resection

Treatments: Device: EndoLift Liver Retractor

Study type: Interventional

Funder types: Other

Identifiers

NCT02008409

Pro00028255

Details and patient eligibility

About

The primary goal of the study is to evaluate the safety of the EndoLift Liver Retractor as an internal laparoscopic liver retraction device. The secondary goals of the study are to evaluate the efficacy of the EndoLift Liver Retractor as an internal laparoscopic liver retraction device and to identify 'best practices' for device utilization.

This study evaluates the use of a specific type of liver retractor (EndoLift). Liver retractors are often necessary during MIS procedures, but this retractor is the only device which is deployed internally (NOT requiring additional skin punctures/incisions for placement of the liver retractor device). All patients undergoing minimally invasive surgery (MIS) at Duke Regional Hospital will be approached.

The new device is expected to have a minimal risk safety profile. The investigators believe that these risks are no more than would be encountered by using any other commercially available retraction device available on the market today. Data will be collected and analyzed by the identified investigators. Continuous variables will be analyzed via T-test and Chi-square analysis will be applied to discontinuous variables. Statistical analysis software such as SPSS® will be utilized when necessary.

Full description

Since the introduction of minimally invasive surgery (MIS) techniques in the 1980's laparoscopic surgery has become the preferred approach for a number of intra-abdominal procedures such as cholecystectomy, gastric bypass, etc.[1] One of the key components of laparoscopic surgery, of any surgery for that matter, is the ability to achieve and maintain adequate visualization of the surgical target throughout the procedure. During certain MIS procedures the patient's internal organs, such as the liver, can block or obscure the surgical view. A number of surgical instruments (retractors) have been developed to help retract abdominal organs "out of the way" during MIS procedures, but all of these devices require an additional abdominal wall puncture/incision to adequately position the device.

Virtual Ports, Ltd. has developed a new laparoscopic liver retractor device, the EndoLift Liver Retractor. This new device does not require additional skin incisions and is placed internally (inside the abdomen) during laparoscopic surgery. The device has 2 ends that "grab" tissue. The body of the device is a smooth, cylindrical steel bar that has minimal risk of traumatizing tissues/organs. The ends of the device are positioned on to peritoneal surfaces (e.g., anterior abdominal wall and/or the right crus of the diaphragm) and the body of the device (smooth cylindrical bar) "pushes" the liver away from the surgical field.

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

Subjects eligible for this clinical study must fulfill all of the following:

• Subject is 18 years of age or older.

• Subject is scheduled for a MIS procedure:

  1. Laparoscopic Gastric Banding
  2. Laparoscopic Roux-en-Y Gastric Bypass
  3. Laparoscopic Sleeve Gastrectomy
  4. Laparoscopic Fundoplication Procedure (Nissen, Toupet, Dor, etc.)
  5. Laparoscopic Heller myotomy
  6. Laparoscopic paraesophageal hernia repair
  7. Laparoscopic gastric resection

• Subject is able to comprehend and give informed consent for participation in this study.

Exclusion criteria

• Subjects not eligible for this research study include those that have any of the following:

  • Subject is unable to comprehend and give informed consent for participation in this study.
  • Subject who are pregnant.

Trial design

Primary purpose: Basic Science

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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0 participants in 1 patient group

EndoLift Liver Retractor

Experimental group

Description:

During surgery, the surgeon will use the new internal liver retractor device. The device will retract the subject's liver out of the way and help the surgeon see better during the surgery. The device is placed inside the abdomen during the surgery. It is "clipped" onto 2 safe surfaces inside the abdomen. The device is removed before the surgery ends.

Treatment:

Device: EndoLift Liver Retractor