Safeguard® and Ergonomics in the Cath Lab

I recently read an article by Marsha Holton, CCRN, RCIS, FSICP, “An Ergonomic Survey of Cath Lab Repetitive Stress Injuries,” who observed that the duration of manual compression may be one of the ergonomic risk factors for cath lab repetitive stress injuries.

“Survey results regarding recovering access sites were surprising, particularly the mean holding pressure time of 19 minutes*. We may have identified at least one task that could increase the risk of carpal tunnel injury to our health care workers. Three of the seven ergonomic risks are involved in holding manual pressure. These are the risks of position and pressure, force, and duration, which may explain the trembling of those hands that held for 19 minutes.” [* Emphasis added]

As a result of her survey, Ms. Holton encourages cath lab professionals to look for ways to reduce the risk of injury.

“If there is even a possibility that such injuries are caused by our work, it is important to identify what is hurting cath lab professionals, and what we can do to decrease the number of future injuries.”

For those who are looking for ways to reduce the duration of manual compression, I recommend using the Safeguard Pressure Assisted device. The Safeguard Manual Assist (SMAT) study—a multicenter trial of over 100 patients found that the device was effective in reducing active compression time.

  • The mean active compression time for all patients (n = 100): 7.7±3.3 minutes
  • The mean active compression time for diagnostic patients (n = 72): 6.6±2.9 minutes
  • The mean active compression time for interventional patients (n = 28): 10.5±2.5 minutes

Safeguard is indicated in the reduction of active compression time in femoral artery cannulation following diagnostic and interventional procedures and it is effective in obtaining and maintaining hemostasis. It has a clear polyurethane window and bladder with adhesive backing and a Luer valve for inflation with a syringe to provide pressure to the puncture site.

Testimonials from two of the nurses who participated in the SMAT study support the effectiveness and comfort of the device:

“Well, I love this product because my hand doesn’t hurt when I go home at night.” —Karen Cronin, RN

“Safeguard is just a great thing for nurses and a great thing for the patients.” —Judy Champion, RN

To learn more about the Safeguard Manual Assist Technique, contact your local Merit Medical Sales Representative.

Mark Heninger
Senior Product Manager

Merit Medical Offers PD Kit for Interventional Radiologists

Introducing the NEW Merit Percutaneous Implantation Kit for peritoneal dialysis (PD) catheter placement. The kit is designed to accommodate stylette or over-the-wire placement using ultrasound guided access and fluoroscopy. At the recent Society of Interventional Radiology (SIR) meeting in San Diego, physicians were thrilled to learn about this procedure and the advantages of the Merit percutaneous kit over the competitor’s kit. This percutaneous kit is unique because it has a number of components not currently offered in competitive kits. These unique features include:

  • 18G echogenic needle
  • Two Dilators: 12F and 14F for serial dilation
  • Cuff Implantor: Designed to simplify implanting the cuff through a smaller incision
  • 0.038″ x 150 cm Wire: Long enough to place the catheter over the wire
  • Tunneler: Specifically designed to match the O.D. of our catheter and sized for a small, tight exit site

Each Merit PD catheter, sold separately from the implantation kit, includes a sterile implantation stencil to promote placement accuracy and better PD catheter outcomes.

Product configurations: VP-511 (Includes plastic Faller Trocar) and VP-511M (Includes metal Faller Trocar)

In addition to these kits, Merit offers a number of interventional tools to assist in these procedures such as the Merit Laureate® hydrophilic guide wire and MAK-NV™ non-vascular micro puncture sets.

To learn more about these kits, visit our PD product web page or contact your local Merit Sales Representative.

Lynette Ruppel
Senior Product Manager

The Importance of Having Options for Foreign Body Manipulation and Retrieval

A survey conducted by Merit Medical found that radiologists, cardiologists, and vascular surgeons use, on average, two or more different endovascular snare devices in their practice. These physicians understand the importance of having options when a foreign object such as an IVC filter, stent, balloon fragment, broken catheter tip, or guide wire tip needs to be retrieved from the vasculature.

EN Snare® Endovascular Snare System and ONE Snare® Endovascular Snare System

Merit Medical recognizes this need and is pleased to be the only provider of two snare systems: an interlaced triple loop device–the EN Snare® Endovascular Snare System, and a single loop snare device–the ONE Snare® Endovascular Snare System. The EN Snare® and the ONE Snare® go hand-in-hand to provide physicians with the necessary options they need to meet any clinically-challenging case that may arise.

Check out our website to learn more about the suite of Merit Endovascular Snare Systems.

Jesse Hansen
Director of Marketing – Interventional Radiology

Retrospective Analysis Study Shows CentrosFLO® Long-Term Hemodialysis Catheter Tip Design Offers Greater Patency


The Merit Medical CentrosFLO long-term hemodialysis catheter’s self-centering split-tip design has a greater separation between the arterial and venous tips than the symmetric-tip designed catheter. Its design is intended to optimize catheter patency and reduce fibrin sheath formation, thrombosis and vessel wall occlusions by keeping the tips of the catheter centered in the vessel and away from the vessel wall.

In May of 2013, a retrospective study was completed by Dr. Saravanan Balamuthusamy (“Dr. Bala”) at Angiocare, Vascular and Interventional Nephrology, in Tucson, Arizona. The performance and safety of a new self-centering, split tip hemodialysis tunneled catheter was compared with a symmetric-tip catheter in 58 patients.

Study Conclusion1
The study results indicated that the CentrosFLO self-centering, split-tip catheter had statistically greater patency after 3 months with similar clearance and blood flow.

Split-Tip Design
(n = 38)
(n = 20)
Patency94.7%75.0%P = 0.04
Mean Clearance (Kt/V)21.4831.423NSD4 (p = 0.48)
Mean Blood Flow (ml/min)2393.93381.63NSD4 (p = 0.27)

1 Study data on file.
2 Mean value during the three-month follow-up period.
3 Mean clearance and mean blood flow did not include data from patients with no catheter patency.
4 NSD = Not Statistically Significant, p > 0.05 (t-tests).

For a full published version of this study, contact your local Merit Sales Representative.

Nate Smith – Senior Product Manager
Merit Medical Systems, Inc.