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David Feindel

About David Feindel

Posts by David Feindel:

AndraValvulotome

AndraValvulotome

Andramed AndraValvulotome
Allows precise incision of the venous valves, indicated for in-situ and ex-situ valvolotomy
Self-centering and self-dimensioning technology: The OTW Valvulotome minimizes the risk of injury in the treated area
Atraumatic tip (soft TIP)
Automatic closing and centering
Automatic adjustment to the vein diameter ensures optimal cutting of the vein flaps
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Andramed AndraValvulotome

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Nit-Occlud® PFO

Nit-Occlud® PFO

Nit-Occlud PFO
The Nitinol occluder Nit-Occlud® PFO was specially developed for the closure of the congenital heart defect PFO
Special umbrella shape: The occluder consists of a right atrial double disc and a left atrial single disc. The reduced nitinol content in the LA reduces the thrombo-embolic risk.
Different sizes: 20 mm, 26 mm and 30 mm.
Simple handling: The delivery system has been specifically designed for Nit-Occlud® PFO
Patented single-wire design: No protruding clips and therefore a very flat profile
Atraumatic margins
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Nit-Occlud PFO

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Transseptal needle and sheath

Transseptal needle and sheath

Transseptal needle and sheath

Elastic nylon material of the lock ensures good bendability inside the heart
PTFE inner material improves the smooth guidance
Special plastic handle ensures reliable product use
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Transseptal needle and sheath

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AndraSnare

AndraSnare

Andramed AndraSnare
Flexible snare for interventional retrieval of foreign bodies from vessels
Comprises a flexible nitinol wire with a special gold-plated atraumatic 3D snare loop
Preformed tip for better control
Continuous nitinol wire for 1:1 control of the snare
Available in two versions: AndraSnare and AndraSnare Micro
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Andramed AndraSnare

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Flamingo inflation injection

Flamingo inflation injection

Flamingo inflation injection
Field of application: Interventional imaging
Compact and ergonomic inflation syringe
Pressure gauge indicates pressures up to 30 atm and rotates up to 90º
Progressive resistance during inflation and simple handling due to ergonomic design
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Flamingo inflation injection

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Dolphin inflation injection

Dolphin inflation injection

Dolphin Inflation Injection
Field of application: Cardiovascular
Fits any balloon catheter
The T-handle allows comfortable turning and simple deflation
Simple handling due to the automatic closing system
The pressure gauge indicates a pressure of up to 30 atm and is reliable in use
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Dolphin Inflation Injection

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Direct-Stent® Stent Graft

Direct-Stent® Stent Graft

Direct-Stent® Stent Graft
Patented hybrid cell diamond and butterfly design
Areas of use: Coronary and Peripheral
Great flexibility and navigability in tortuous vessels
Very good visibility under X-ray
Smooth, atraumatic tip
High radial strength and excellent vessel conformity
One of the lowest crimp profiles on the market
Fast inflation and deflation time
Precise stent deployment and positioning
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Direct-Stent® Stent Graft

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AndraStent Aortic XL und XXL

AndraStent Aortic XL and XXL

Andramed AndraStent Aortic XL and XXL
Largest stent available on the market for coarctation
Small introducer sheaths:
    XL: 7 Fr – 13 Fr
    XXL: 10 Fr – 14 Fr
Diameter:
    XL: 8 – 25 mm
    XXL: 12 – 32 mm
Lenghts:
    XL: 13 – 57 mm
    XXL: 21 – 57 mm
MR Conditional

Non-clinical testing has demonstrated the AndraStent Aortic and Covered AndraStent Aortic, represented by the Covered AndraStent ASC57XXL are MR Conditional. A patient with this device can be safely scanned in an MR system meeting the following conditions:

          • Static magnetic field of 3 Tesla, with
          • Maximum spatial field gradient of 7,200 G/cm (72 T/m)
          • Maximum force product of 132,000,000 G2/cm (132 T2/m)
          • Theoretically estimated maximum whole body averaged (WBA) specific absorption rate (SAR) of 2 W/kg (Normal Operating Mode)

Under the scan conditions defined above, the stent is expected to produce a maximum temperature rise of less than 3.2 °C (2 W/kg, 3 Tesla) RF-related temperature increase with a background temperature increase of around 1.0 °C (2 W/kg, 3 Tesla) after 15 minutes of continuous scanning.

In non-clinical testing, the image artefact caused by the device extends approximately 17.5 mm from the stent when imaged with a gradient echo pulse sequence and a 3 Tesla MR system

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Andramed AndraStent Aortic XL and XXL
Andramed AndraStent Aortic XL and XXL

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CAAS 4D-Flow

Heart 4D flow screen

4D-Flow: Complete assessment of your MR 4D Flow data

Caas MR 4D Flow is specifically designed to extract relevant information from 3D phase-contrast (PC) MR images, within a few clicks. Based on these phase-contrast images, two pioneering 4D Flow modules are offered to perform a complete flow analysis that can aid in reading and interpreting cardiovascular MR images and assist in planning the time and type of an intervention. These two modules include a module to analyze vessels, from the aorta up to smaller vessels in for example the kidneys (Caas MR 4D Artery), and a module to analyze the heart valves in terms of regurgitation fraction (Caas MR 4D Heart).

Key Results

  • Visualization of aortic blood flow as streamlines, pathlines and color-coded vectors
  • Distribution of wall shear stress and local values of wall shear stress
  • Pressure difference over a segment
  • Visualization and quantification of regurgitant fraction over all four valves
  • 2D flow phase-contract analysis

The Wall Shear Stress Analysis and Pressure Difference Analysis are not CE marked and therefore not meant for clinical decision making.

CAAS A-Valve

A-valve screen

CAAS A-Valve: assisting physicians during or in preparation of valve replacements as TAVR procedures.

CAAS A-Valve assists the physician in evaluating aortic regurgitation after transcatheter valve replacement. The qRA workflow (also called videodensitometry, VD-AR, LVOT-AR) enables the physician to quantify valvular and paravalvular regurgitation immediately in the hybrid OR directly after placing the valve. 

Clinical confidence
qRA is extensively validated by the groups of Prof. Patrick Serruys and Prof. Carl Schulz. Validation studies have been performed in:

  • Correlating with clinical endpoints to assess LVOT-AR cut-off value of 0.17 
  • Comparing with MR Flow measurements
  • Comparing with echocardiography measurements
  • Comparing with visual classification of aortic regurgitation
  • Phantom setup

Use in practice
CAAS A-Valve qRA has been used to assess:

  • Acute performance of a novel Xeltis valve in a pre-clinical setting
  • Comparison of seven different TAVR valves

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