scispace - formally typeset
Patent

Perfusion and suction device for rinsing body apertures, e.g. for hysteroscopy and arthroscopy

Reads0
Chats0
TLDR
In this paper, the volumetric flow of the perfusion fluid extracted from the body aperture is measured, with real-time display of the volume difference between the supplied and extracted flow.
Abstract
The device supplies a perfusion fluid with a controlled pressure and flow to the body aperture, by detecting the volumetric flow in a pressure vessel (1.3), in which the fluid is held at a given pressure. The volumetric flow of the fluid extracted from the body aperture is measured, with real-time display of the volumetric difference between the supplied and extracted flow. Pref. separate displays are provided for indicating the volume of fluid within the body aperture and the volume of fluid extracted from the latter and fed to a reception container (1.9).

read more

Citations
More filters
Patent

Bipolar high-frequency surgical instrument

Pavel Novak
TL;DR: In this article, a high-frequency surgical instrument comprising two electrodes which are designed as forceps jaws and to which a highfrequency current from a high frequency generator can be applied such that a high voltage current flows between the jaws through the area of tissue to be treated.
Patent

Selectively moveable valve elements for aspiration and irrigation circuits

TL;DR: In this paper, an aspiration circuit for a fluidics system is described that selectively controls the aspiration pressure in a surgical instrument, an aspiration exhaust line, and a variable vent valve.
Patent

Partial venting system for occlusion surge mitigation

TL;DR: In this article, a surgical system comprises a hand piece, an irrigation conduit in fluid communication with the hand piece to carry fluid toward a surgical site, an aspiration conduit, a pump interfacing with the aspiration conduit and a pressure sensor to detect a pressure associated with the surgical site.
Patent

Device for the rinsing of body cavities

TL;DR: In this paper, an electronic evaluation unit determines from the output signal of the measuring means the amount of rinsing fluid lost and also the time rate at which the amount lost changes.
Patent

Device for irrigating body cavities, for example for hysteroscopy

Stier Henrik
TL;DR: In this paper, the authors present an irrigation device for hysteroscopy, which allows measuring the amount of irrigation liquid introduced and discharged, using flow sensors, on the basis of which it can be determined whether a relevant amount of liquid has remained in the patient.
References
More filters
Patent

Disposable vacuum/peristaltic pump cassette system

TL;DR: In this paper, a microsurgical irrigation/aspiration system is provided, including a controller having a pump roller head, actuators for occluding fluid lines, a suction sensor, and means for mounting a pump cassette.
Patent

Apparatus and method for removing obstructions in bodily organs or cavities

TL;DR: In this paper, a fully automatic organ pressure sensitive apparatus for dislodging and removing obstructions in bodily cavities or organs by delivering and removing fluid, operable by high rate continuous or intermittent infusion of fluid solvent over a set pressure range to effect rapid dissolution and removal of the obstruction without complications to the patient.
Patent

Irrigation and aspiration apparatus for use in endoscopic surgery

TL;DR: In this article, the authors describe a surgical apparatus for the irrigation and aspiration of the operative cavity during endoscopic surgery, which consists of a reservoir of liquid for irrigation of the cavity, a pump for circulating the liquid in the cavity and a pressure measuring and control means, such as a piezometric cell and valve for measuring and controlling pressure in the cavities and a flow control means for controlling the flow of the liquid.
Patent

Isolated heart perfusion appts. - has closed vessel with fluid and adjustable gas vol. to give timed aorta pressure

TL;DR: In this paper, an adjustable timed operation of the aorta pressure assembly is described, which is for the perfusion of a heart, to keep it working, such as before transplanation.
Patent

Vorrichtung zur foerderung von gegen mechanische beanspruchung hochempfindlichen fluessigkeiten

TL;DR: In this paper, a rigid casing with variable volume and a sealed cavity was proposed for blood circulation in hemodialysis, ultrafiltration, hemofiltration and plasma separation apparatuses.