Dataset Information

Creating a Microdissection Cautery Tip Using Disposable Needle.

ABSTRACT: The use of electrocautery is universal in modern day surgery. Through decades electrocautery has reformed from larger electrodes to smaller ones. The latest modification is the micro-dissection cautery with a fine electrode tip. We have modified the electrocautery tip to replicate the usage of micro dissection-cautery using readily available, low cost disposable needle. The idea is to replicate the benefits of micro-dissection needle with a low cost construct which can be learned easily, used widely to provide optimum surgical results to the wider sections of the society. A video demonstration for creation of the micro-dissection cautery construct is also demonstrated.

SUBMITTER: Sahu RK

PROVIDER: S-EPMC6967171 | biostudies-literature | 2019 Oct-Dec

REPOSITORIES: biostudies-literature

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Publications

Creating a Microdissection Cautery Tip Using Disposable Needle.

Sahu Ranjit K RK Midya Manojit M

Journal of cutaneous and aesthetic surgery 20191001 4

The use of electrocautery is universal in modern day surgery. Through decades electrocautery has reformed from larger electrodes to smaller ones. The latest modification is the micro-dissection cautery with a fine electrode tip. We have modified the electrocautery tip to replicate the usage of micro dissection-cautery using readily available, low cost disposable needle. The idea is to replicate the benefits of micro-dissection needle with a low cost construct which can be learned easily, used wi ...[more]

PMID: 32001972

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Project description:Ultrasound is an essential tool for guidance of many minimally-invasive surgical and interventional procedures, where accurate placement of the interventional device is critical to avoid adverse events. Needle insertion procedures for anaesthesia, fetal medicine and tumour biopsy are commonly ultrasound-guided, and misplacement of the needle may lead to complications such as nerve damage, organ injury or pregnancy loss. Clear visibility of the needle tip is therefore critical, but visibility is often precluded by tissue heterogeneities or specular reflections from the needle shaft. This paper presents the in vitro and ex vivo accuracy of a new, real-time, ultrasound needle tip tracking system for guidance of fetal interventions. A fibre-optic, Fabry-Pérot interferometer hydrophone is integrated into an intraoperative needle and used to localise the needle tip within a handheld ultrasound field. While previous, related work has been based on research ultrasound systems with bespoke transmission sequences, the new system-developed under the ISO 13485 Medical Devices quality standard-operates as an adjunct to a commercial ultrasound imaging system and therefore provides the image quality expected in the clinic, superimposing a cross-hair onto the ultrasound image at the needle tip position. Tracking accuracy was determined by translating the needle tip to 356 known positions in the ultrasound field of view in a tank of water, and by comparison to manual labelling of the the position of the needle in B-mode US images during an insertion into an ex vivo phantom. In water, the mean distance between tracked and true positions was 0.7 ± 0.4 mm with a mean repeatability of 0.3 ± 0.2 mm. In the tissue phantom, the mean distance between tracked and labelled positions was 1.1 ± 0.7 mm. Tracking performance was found to be independent of needle angle. The study demonstrates the performance and clinical compatibility of ultrasound needle tracking, an essential step towards a first-in-human study.

Dataset Information

Creating a Microdissection Cautery Tip Using Disposable Needle.

Publications

Creating a Microdissection Cautery Tip Using Disposable Needle.

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