Hostname: page-component-76fb5796d-skm99 Total loading time: 0 Render date: 2024-04-27T02:20:35.862Z Has data issue: false hasContentIssue false
  • English
  • Français

A new hemostatic device utilizing a novel transmission structure for delivery of adrenaline and microwave energy at 5.8 GHz

Published online by Cambridge University Press:  01 June 2017

Shaun C. Preston Open the ORCID record for Shaun C. Preston [Opens in a new window] ,
Malcolm White ,
Brian Saunders ,
Zacharias Tsiamoulos  and
Christoper P. Hancock
Shaun C. Preston*
Affiliation:
Medical Microwave Systems Research Group, School of Electronic Engineering, Bangor, UK Creo Medical Ltd., Chepstow, UK
Malcolm White
Affiliation:
Creo Medical Ltd., Chepstow, UK
Brian Saunders
Affiliation:
St Marks Hospital, Harrow, UK
Zacharias Tsiamoulos
Affiliation:
St Marks Hospital, Harrow, UK
Christoper P. Hancock
Affiliation:
Medical Microwave Systems Research Group, School of Electronic Engineering, Bangor, UK Creo Medical Ltd., Chepstow, UK
*
Corresponding author: S.C. Preston Email: s.preston@bangor.ac.uk
Get access Rights & Permissions [Opens in a new window]

Abstract

A novel transmission line structure has been developed to facilitate the delivery of both adrenaline and microwave energy to achieve hemostasis. A proximal end impedance transformer and radiative tip have been designed and manufactured to provide good match between the novel hollow transmission line and the microwave source and tissue, respectively. Further consideration of the challenges and problems encountered along with evidence of successful microwave energy delivery at 5.8 GHz into porcine liver model providing a controlled and focused coagulation zone of approximately 5 mm.

Keywords

Biomedical applicationsAntenna designModeling and measurements
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 9 , Special Issue 8: Biomedical Applications of RF/Microwave and Optics Technologies , October 2017 , pp. 1575 - 1582
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2017 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1] Kehlet, H.: Surgical stress response: does endoscopic surgery confer an advantage? World J. Surg., 23 (8) (1999), 801–807.CrossRefGoogle ScholarPubMed
[2] Yeung, B.P.M.; Gourlay, T.: A technical review of flexible endoscopic multitasking platforms. Int. J. Surg., 10 (7) (2012), 345–354.CrossRefGoogle ScholarPubMed
[3]Microwaves 101 a more exact coax attenuation solution. https://www.microwaves101.com/encyclopedias/a-more-exact-coax-attenuation-solution.Google Scholar
[4] Reatti, A.; Kazimierczuk, M.K.: Comparison of various methods for calculating the ac resistance of inductors. IEEE Trans. Magn., 38 (3) (2002), 1512–1518.CrossRefGoogle Scholar
[5] Reatti, A.; Grasso, F.: Solid and litz-wire winding non-linear resistance comparison, in Proc. of the 43rd IEEE Midwest Symp. on Circuits and Systems, 2000, IEEE, 2000, vol. 1, pp. 466–469.Google Scholar
[6] Wheeler, H.A.: Formulas for the skin effect. Proc. IRE, 30 (9) (1942), 412–424.Google Scholar
[7] Hancock, C.P. et al. : A new wave in electrosurgery: a review of existing and introduction to new radio-frequency and microwave therapeutic systems. Microw. Mag. IEEE, 16 (2) (2015), 14–30.Google Scholar
[8] Rosen, A.; Stuchly, M.A.; Vander Vorst, A.: Applications of RF/microwaves in medicine. IEEE Trans. Microw. Theory Tech., 50 (3) (2002), 963–974.Google Scholar
[9] Yang, D.; Converse, M.C.; Mahvi, D.M.; Webster, J.G.: Measurement and analysis of tissue temperature during microwave liver ablation. IEEE Trans. Biomed. Eng., 54 (1) (2007), 150–155.Google Scholar
[10] Hwang, J.H. et al. : The role of endoscopy in the management of acute non-variceal upper gi bleeding. Gastrointest. Endosc., 75 (6) (2012), 1132–1138.Google Scholar
[11] Szura, M.; Pasternak, A.: Upper non-variceal gastrointestinal bleeding-review the effectiveness of endoscopic hemostasis methods. World J. Gastrointest. Endosc., 7 (13) (2015), 1088.Google Scholar
[12] Wara, P.; Berg, V.; Jacobsen, N.; Casalnuovo, C.; Amdrup, E.: Possible mechanism of hemostasis effected by electrocoagulation. Endoscopy, 16 (2) (1984), 43–46.CrossRefGoogle ScholarPubMed
[13] Changela, K. et al. : Hemostatic powder spray: a new method for managing gastrointestinal bleeding. Ther. Adv. Gastroenterol., 8 (3) (2015), 125–135.CrossRefGoogle Scholar
[14] Kovacs, T.O.; Jensen, D.M.: Recent advances in the endoscopic diagnosis and therapy of upper gastrointestinal, small intestinal, and colonic bleeding. Med. Clin. North Am., 86 (6) (2002), 1319–1356.CrossRefGoogle ScholarPubMed
[15] Calvet, X.; Vergara, M.; Brullet, E.; Gisbert, J.P.; Campo, R.: Addition of a second endoscopic treatment following epinephrine injection improves outcome in high-risk bleeding ulcers. Gastroenterology, 126 (2) (2004), 441–450.CrossRefGoogle ScholarPubMed
[16] Hong, M.J. et al. : Rebleeding after initial endoscopic hemostasis in peptic ulcer disease. J. Korean Med. Sci., 29 (10) (2014), 1411–1415.CrossRefGoogle ScholarPubMed