Ferton Holding S.a.

Andreas Menne

Wolfgang Merkle

Manfred Schulz

Denis Klopfenstein

Thomas Jerger

Gerald Haupt

Joachim Hirt

Joachim Schmidt

Bernard Simon

Emanuel Goin

Uwe Horn

Disclosed is a medical instrument for treating biological tissue, comprising a device generating extracorporeal pressure waves and a transmission element () coupling said pressure waves into the body of living beings. The pressure wave is generated by a stroking member () impacting on a transmission element () and is transmitted inside the transmission element. Said transmission element comprises a boundary surface at the outlet thereof, which is curved towards the inside and is configured such that the pressure waves can be coupled into the biological tissue and can be focused therein.

Medical device for the treatment of biological tissue

A medical instrument for treating biological tissue comprises a housing ( ), a pressure wave generation means ( ) and a transmission means ( ) for coupling the unfocused pressure waves into the body of living beings. The transmission means ( ) comprises a pressure chamber ( ) having an inlet and an outlet end, the pressure chamber ( ) containing a liquid ( ) into which pressure waves from the pressure wave generation means ( ) can be coupled, which pressure waves can be transmitted to a membrane ( ) arranged at the outlet end of the pressure chamber ( ) which membrane ( ) couples the pressure waves transmitted from the liquid unfocusedly into the biological tissue.

Medical instrument for treating biological tissue and method for transmitting pressure waves

A filtration device for separating concrements, fragments or other body material from liquids which are processed by means of a lithotripter connected to a suction device equipped with a peristaltic valve and sucked out of body cavities. The device has a functional zone having an inlet zone connected at one end to the lithotripter, and an outlet zone connected to the suction device. There is a collection zone mounted on the functional zone and connected to the other end of the inlet zone. A filter element is disposed between the functional zone and the collection zone, so that body material processed by the lithotripter will be deposited in the collection zone, and the filter element will separate the body fluids collected by the lithotripter from the body material.

Filtration device for separation of concretions, fragments or other body material from liquids

A device for removing calculi by using an intracorporeal lithotripter comprises a single metallic probe or sonotrode which for the fragmentation of calculi is connected with an electrically controlled ultrasonic transducer for generating longitudinal oscillations which alternatively may be switched to the generation of shock or pressure waves by either a pulse wave stimulated oscillation of the metallic probe or sonotrode or by a reversibly driven impact member or projectile which is accommodated by the hollow of a backward tubular extension of the sonotrode.

Device for removal of calculi

A device for removing calculi by using an intracorporeal lithotripter comprises a single metallic probe or sonotrode which for the fragmentation of calculi is connected with an electrically controlled ultrasonic transducer for generating longitudinal oscillations which alternatively may be switched to the generation of shock or pressure waves by a pulse wave stimulated oscillation of the metallic probe or sonotrode.

An ejection device for ejecting a liquid or a liquid containing solid particles at high pressure, comprising a head unit; a pressure chamber ( ) which opens into a distal ejection opening and is delimited by a working piston which, upon application of an elastic impact on its end facing away from the pressure chamber, is capable of transmitting a compression wave which may displace the pressure chamber-facing end of the working piston into the pressure chamber so that the volume thereof is reduced, with the reduction in volume of the pressure chamber being significantly smaller than the original volume of the pressure chamber; and a drive unit having a drive member which is accelerated across an acceleration portion formed within the drive unit so that it generates the elastic impact to be transmitted to the working piston. The pressure chamber is at least partially formed by a pressure cavity formed in the head unit. The need unit and the drive unit are formed as separate, independent units which are mounted to each other by a separable mounting coupling. An intermediary member is provided between the working piston and the acceleration portion as a separate component to transmit the elastic impact from the drive member to the working piston, said intermediary member being arranged in the drive unit of the device. Further, the acceleration portion of the drive unit is tightly sealed by the intermediary member.

Ejection device for the high-pressure ejection of a liquid

The invention relates to a medical instrument for treating biological tissue, comprising a device for generating extra-corporeal pressure waves and a transmission element ( ) for injecting pressure waves into the bodies of living organisms. According to the invention the transmission element ( ) has a blunt probe tip ( ) with a flat exit surface ( ) which injects non-focused mechanically generated pressure waves into the biological tissue.

Medical instrument for treating biological tissue

In a surgical instrument for the mechanical removal of bone cement (,), comprising a longitudinal housing (,) with a cylinder (,) in which a piston element can be reciprocated by a drive means (,), wherein the piston element on the distal end (,) of the cylinder (,) exerts an impact on a chisel tool supported axially in the housing (,), it is provided that the piston element (,) comprises a projectile (,) adapted to be accelerated to a high final speed and inducing a shock wave into the chisel tool comprising a metallic shock wave transmission probe (,), the probe tip (,) of the chisel tool transmitting the shock wave to the bone cement (,) at a low movement amplitude of the probe tip (,).

Surgical instrument for mechanical removal of bone cement, and process for production of shock waves

A metallic flexible probe for use in shock wave lithotripsy is provided next to its head portion and approximately at a transition to an adjoining initial length of the probe with a rated break point for causing without any disturbance of the energy flow along the length of the probe as optimized by different dimensional and material chracteristics of the probe a fracture at a position which most presumably will not lead to harmful injuries of the patient and to no damages of the surrounding lumen of the endoscope which is used in combination with a lithotripter.

Flexible probe for use in lithotripsy

An ejection device,for the high-pressure ejection of a liquid or a liquid containing solid particles, comprising a pressure chamber,to accommodate the liquid therein, which opens into an ejection opening,and is delimited by a working piston,. The working piston,is, upon application of an elastic impact on its end facing away from the pressure chamber,, capable of transmitting a compression wave which may displace the pressure chamber-facing end of the working piston,by a predetermined displacement stroke into the pressure chamber,so that the volume thereof is reduced. The reduction in volume of the pressure chamber,is signicantly smaller than the volume of the pressure chamber,. The ejection device,further comprises a drive member,capable of generating the elastic impact, and is designed such that the working piston,is progressively displaced into the pressure chamber,by the repeated application of elastic impacts, with the distance of each single displacement being defined by the predetermined displacement stroke. (FIG.,)

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Meersburg, Germany

Andreas Menne