Evidence map›Paper›PMID 34723442›Full record

ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2022

Thermoset Shape Memory Polymer Variable Stiffness 4D Robotic Catheters.

Michael Mattmann, Carmela De Marco, Francesco Briatico, Stefano Tagliabue, Aron Colusso, Xiang-Zhong Chen, Jonas Lussi, Christophe Chautems, Salvador Pané, Bradley Nelson

Abstract read
In one paragraph

Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

25 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Materials Advances in Devices for Heart Disease Interventions.Advanced materials (Deerfield Beach, Fla.) · 2025
    Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Magnetically Guided Microcatheter for Targeted Injection of Magnetic Particle Swarms.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Article
  17. Water-Induced Shape-Locking Magnetic Robots.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Article
  18. Article
  19. Fast-Response Variable-Stiffness Magnetic Catheters for Minimally Invasive Surgery.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Article
  20. Locally Addressable Energy Efficient Actuation of Magnetic Soft Actuator Array Systems.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Michael MattmannInstitute of Robotics and Intelligent Systems, ETH Zürich, Tannenstrasse 3, Zurich, CH-8092, Switzerland.ORCID 0000-0002-6365-6336
Carmela De MarcoInstitute of Robotics and Intelligent Systems, ETH Zürich, Tannenstrasse 3, Zurich, CH-8092, Switzerland.ORCID 0000-0001-6478-3508
Francesco BriaticoDepartment of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Milan, 20131, Italy.
Stefano TagliabueDepartment of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Milan, 20131, Italy.
Aron ColussoInstitute of Robotics and Intelligent Systems, ETH Zürich, Tannenstrasse 3, Zurich, CH-8092, Switzerland.
Xiang-Zhong ChenInstitute of Robotics and Intelligent Systems, ETH Zürich, Tannenstrasse 3, Zurich, CH-8092, Switzerland.
Jonas LussiInstitute of Robotics and Intelligent Systems, ETH Zürich, Tannenstrasse 3, Zurich, CH-8092, Switzerland.
Christophe ChautemsInstitute of Robotics and Intelligent Systems, ETH Zürich, Tannenstrasse 3, Zurich, CH-8092, Switzerland.
Salvador PanéInstitute of Robotics and Intelligent Systems, ETH Zürich, Tannenstrasse 3, Zurich, CH-8092, Switzerland.ORCID 0000-0003-0147-8287
Bradley NelsonInstitute of Robotics and Intelligent Systems, ETH Zürich, Tannenstrasse 3, Zurich, CH-8092, Switzerland.

Funding

European Research Council 743217European Research Council 771565
6 · The paper itself

Abstract

Variable stiffness catheters are typically composed of an encapsulated core. The core is usually composed of a low melting point alloy (LMPA) or a thermoplastic polymer (TP). In both cases, there is a need to encapsulate the core with an elastic material. This imposes a limit to the volume of variable stiffness (VS) material and limits miniaturization. This paper proposes a new approach that relies on the use of thermosetting materials. The variable stiffness catheter (VSC) proposed in this work eliminates the necessity for an encapsulation layer and is made of a unique biocompatible thermoset polymer with an embedded heating system. This significantly reduces the final diameter, improves manufacturability, and increases safety in the event of complications. The device can be scaled to sub-millimeter dimensions, while maintaining a high stiffness change. In addition, integration into a magnetic actuation system allows for precise actuation of one or multiple tools.

Indexed as

CathetersEquipment DesignHumansRoboticsSmart MaterialsSmart Materialscatheterscomposite materialsshape memory polymersthermoset polymersvariable stiffness

Identifiers

PMID34723442
PMCPMC8728812

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.