A case report of the preferred indication for the Zephyr (ZSI 375) artificial urinary sphincter

Basiri, Abbas; Dadpour, Mehdi

doi:10.1016/j.eucr.2022.102058

Cited by 3 publications

(5 citation statements)

References 6 publications

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“…This is due to the fact that they are adjustable sphincter F I G U R E 2 Hydraulic AS devices. AMS 800 (A) (reproduced with permission from Wiley, image from the technical datasheet of Boston Scientific) 12 FlowSecure (B) (image from open access paper), 42 Zephyr ZSI 375 (C) (reproduced with permission from Elsevier), 43 PUC (image from open access paper) (D), 42 VICTO, VICTO+ (E) (image from the technical datasheet of Promedon), 44 BR-SL-AS-904 (F) (image from open access paper), 45 Acticon Neosphincter (G) (courtesy of American Medical Systems, Inc., Minnetonka, MN, www.ameri canme dical syste ms.com), PAS (H) (image from open access paper), 13 AAS (I) (image from the technical datasheet of A.M.I.®), 46 and GASS (J) (reproduced with permission from Elsevier). 47 prostheses that exert an occlusive action through adjustable balloons filled with radio-opaque isotonic solution.…”

Section: Ui Treatmentmentioning

confidence: 99%

Artificial sphincters: An overview from existing devices to novel technologies

et al. 2022

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Artificial sphincters (ASs) are used to replace the function of the biological sphincters in case of severe urinary and fecal incontinence (UI and FI), and gastroesophageal reflux disease (GERD). The design of ASs is established on different mechanisms, e.g., magnetic forces or hydraulic pressure, with the final goal to achieve a implantable and durable AS. In clinical practice, the implantation of in‐commerce AS is considered a reasonable solution, despite the sub‐optimal clinical outcomes. The failure of these surgeries is due to the malfunction of the devices (between 46 and 51%) or the side effects on the biological tissues (more than 38%), such as infection and atrophy. Concentrating on this latter characteristic, particular attention has been given to the interaction between the biological tissues and AS, pointing out the closing mechanism around the duct and the effect on the tissues. To analyze this aspect, an overview of existing commercial/ready‐on‐market ASs for GERD, UI, and FI, together with the clinical outcomes available from the in‐commerce AS, is given. Moreover, this invited review discusses ongoing developments and future research pathways for creating novel ASs. The application of engineering principles and design concepts to medicine enhances the quality of healthcare and improves patient outcomes. In this context, computational methods represent an innovative solution in the design of ASs, proving data on the occlusive force and pressure necessary to guarantee occlusion and avoid tissue damage, considering the coupling between different device sizes and individual variability.

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Section: Ui Treatmentmentioning

confidence: 99%

Artificial sphincters: An overview from existing devices to novel technologies

et al. 2022

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“…(B) The PUC (image from open access article) 18 . (C) The Zephyr ZSI 375 (image from open access article) 21 . (D) The FlowSecure (image from open access article) 18 .…”

Section: Methodsmentioning

confidence: 99%

“…However, the long‐term effects of this mechanical compression on the urethra are unknown due to the resistance created by the device and the patient's need to urinate. In 2005, Zephyr Switzerland designed the Zephyr ZSI 375 (Figure 3C), which consists of two parts, a circular urethral cuff and a pressure‐regulating tank placed in the scrotum 20–22 . When the patient needs to urinate, the activation button is pressed and the piston drops, forcing fluid from the cuff into the hydraulic loop and compensation chamber, and the urethra opens.…”

Section: Methodsmentioning

confidence: 99%

“…In 2005, Zephyr Switzerland designed the Zephyr ZSI 375 (Figure 3C), which consists of two parts, a circular urethral cuff and a pressure-regulating tank placed in the scrotum. [20][21][22] When the patient needs to urinate, the activation button is pressed and the piston drops, forcing fluid from the cuff into the hydraulic loop and compensation chamber, and the urethra opens. After about two to three minutes, the spring spontaneously pushes up the piston, pushing the brine from the hydraulic circuit into the cuff, and the urethra closes.…”

Section: Hydraulically Activated Aussmentioning

confidence: 99%

“…Zephyr ZSI 375 [20][21][22] 4 parts: rigid-circular occluding cuff (circumference from 3.75 to 5 cm), pump-unit (length 40 mm, diameter 24 mm), pressureregulating tank and pump (41*24.5 mm)…”

Section: Cuff Activation Buttonmentioning

confidence: 99%

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Development and future prospects of the artificial urinary sphincter

et al. 2023

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BackgroundUrinary incontinence is a urinary disorder in which urine leaks out involuntarily. This disorder seriously affects the quality of life of patients. For patients with mild incontinence, conservative treatment and medication may be the ideal treatment modality, but for patients with severe incontinence, an artificial urinary sphincter is currently a better treatment option.MethodsIn order to design an ideal artificial urinary sphincter, this article first searched and collected literature based on Preferred Reporting Items for Systematic Reviews and Meta‐Analyses searched strategy by selecting specific subject terms and reviewed the artificial urinary sphincters that are currently in the research stage based on different activation methods.ResultsIn response to the deficiencies of the existing artificial urinary sphincter, this article discusses the future optimization of the artificial urinary sphincter from three aspects: individual improvement of the artificial urinary sphincter, engineering design elements, and optimization of the artificial urinary sphincter manufacturing process.ConclusionsThe manufacture of an idealized artificial urinary sphincter capable of meeting clinical needs is of great importance to improve the quality of life of patients. However, this approach is a reasonable option to explore and should not be overestimated until further evidence is available.

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