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Class 623/3.18 - Reciprocating mechanical member attached to rotary drive means


Subclass of Class 623 - Prosthesis (i.e., artificial body members), parts thereof, or aids and accessories therefor
Definition: Subject matter wherein the movable member is adapted to
No. of patents: 30
Last issue date: 07/03/2007


NumberTitleIssue Date
7238165Fluid pump
A pumping system 10 provides a physiological pulsatile flow and includes controller 121, a pump drive head 50 coupled to a motor 12 and a fluid housing 52 having at least one port 60. The port 60 includes a ball valve...
07/03/2007
7217236Universal pneumatic ventricular assist device
A pneumatic ventricular assist device (VAD) is disclosed for use in any circulatory support application including RVAD, LAVD, or BIVAD, trans-operative, short-term or long-term, tethered implantable or extracorporeal. In the preferred embodiment, the VAD consists of...
05/15/2007
7156872Implantable valve system
An implantable valve having a valve element or leaflet and a base that is attachable to a vessel wall using a connector such as a screw, pin or a staple. The valve can be implanted using a catheter to position the valve in a desired location and drive the connector ...
01/02/2007
7144365Implantable heart assist system and method of applying same
An extracardiac pumping for supplementing the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient's heart, and method of using same. One embodiment of the extracardiac system comprises a pump ...
12/05/2006
7125376Implantable heart assist system and method of applying same
An extracardiac pumping for supplementing the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient's heart, and methods of using same. One embodiment of the intravascular extracardiac system co...
10/24/2006
7105022Implantable left ventricular assist device with cylindrical cam
An implantable left ventricular assist device using a cylindrical cam is provided, which is produced in a compact and module form and implanted in a patient who suffers from an acute cardiac insufficiency, to thereby enable oxygen to be supplied smoothly toward the ...
09/12/2006
7008439Device and method for sealing puncture wounds
A device is proposed for inserting hemostatic material through a tissue channel and against the outside wall of a blood vessel of a patient, wherein the blood vessel wall has a puncture therein adjacent the tissue channel. The device includes a charge of hemostatic ...
03/07/2006
6964681Flared stent and method of use
A tubular stent that uniformly scaffolds vessel tissue within a region that significantly changes diameter or transverse dimension. The invention may be practiced in lumens that taper in either retrograde or antegrade directions, and the transverse dimensional chang...
11/15/2005
6949065Left ventricular assist system
A fully implantable left ventricular assist system comprising a pumping means connectable via adapter elements to the ventricle includes two compressible chambers in the form of sacs (5, 5′) and a compressing means (4) to alternatingly fill and disch...
09/27/2005
6945926Muscle energy converter
A muscle energy converter for a patient. The converter includes a casing having a fluid port. The converter includes a bellows mechanism disposed in the casing adapted to contain fluid. The converter includes an actuator arm mechanism adapted to be attached to a ten...
09/20/2005
6935846Dosing pump
The invention relates to a dosing pump comprising a chamber, an inlet valve located in an inlet pertaining to said chamber, and an outlet valve located in an outlet pertaining to said chamber. The chamber is divided into two partial chambers (2, 18) by a sepa...
08/30/2005
6190409Rotary torque-to-axial force energy conversion apparatus
A rotary torque-to-axial force energy conversion apparatus employs a rotatable member, a translatable member, and a magnetic coupling therebetween. The magnetic coupling converts a rotary torque on the rotatable member to an axial force on the translatabl...
02/20/2001
5984960Rotary torque to axial force energy conversion apparatus
A rotary torque-to-axial force energy conversion apparatus employs a rotatable member, a translatable member, and a magnetic coupling therebetween. The magnetic coupling converts a rotary torque on the rotatable member to an axial force on the translatabl...
11/16/1999
5976184Artificial heart driving device
The invention concerns an artificial heart driving device having at least one blood chamber which is disposed in a pump housing and draws in and expels blood cyclically by means of a plurality of pressure plates which can be driven by a motor. The motor i...
11/02/1999
5314469Artificial heart
A cyclic action, electromechanically operated artificial heart having a pusher plate assembly disposed between a pair of bladders for alternately compressing one bladder containing blood directed to the pulmonary system and another bladder containing bloo...
05/24/1994
5137532Prosthetic heart valve
Bi-leaflet heart valves have improved flow characteristics in their open position as a result of employing valve bodies of elongated axial dimension. By elongating the axial dimension of valve bodies which have straight, smooth interior wall surfaces orie...
08/11/1992
5133743Artificial heart with pump control system
A pump and valve system having particular use as an artifical heart for human or animal implantation has long-lasting wear characteristics by imparting a relatively slow start ramp to the drive voltage for the pump drive. The ramp reduces the shock to the...
07/28/1992
5092878Blood pump
A blood pump with a blood chamber including inlet and outlet ports, said blood chamber being actuated to repeat the cycle consisting of suction and ejection, comprising as driving means an ultrasonic motor capable of converting high frequency wave vibrati...
03/03/1992
5041132Blood pump
A blood pump with a blood chamber including inlet and outlet ports, the blood chamber being actuated to repeat the cycle consisting of suction and ejection. The blood pump chamber includes, as a driving device, an ultrasonic motor capable of a) converting...
08/20/1991
4878906Endoprosthesis for repairing a damaged vessel
A prosthesis consisting of a flexible thin-walled sleeve for reinforcing and repairing a damaged vessel and a process of placing the flexible sleeve in the vessel by collapsing the sleeve radially onto an expandable and contractable member and encasing th...
11/07/1989
4822357Auxiliary artificial heart
An auxiliary artificial heart which comprises a pump having a single opening that is connected to the aorta and is operable in synchronism with the heart of the patient to assist the normal function of the heart. The auxiliary artificial heart comprises a...
04/18/1989
4822356Extra-pericardial module for total cardial prosthesis modules associated in a functionally indissociable unit
Extra-pericardial module for total cardinal prosthesis with two pumps joined together by a functional link. The extra-pericardial module comprises a rigid casing, inside which two pushing plates are disposed. The pushing plates are facing each other and d...
04/18/1989
4781716Artificial heart
An improved artificial heart (10) for pumping blood. The artificial heart (10) comprises first and second pump units (12 and 14), each including a pump body (16) defining a collapsible bellows (18) and a fluid passageway (20) therethrough. Further, each p...
11/01/1988
4718903Artificial heart
An artificial heart blood pump including a driving motor which can be contained within the human body and which performs pumping action when supplied from an electric power source from outside of the human body. The pump includes left and right ventricles...
01/12/1988
4693714Double pump adapted for use as an artificial heart
A double pump adapted for use as an artificial heart includes two ventricle-simulating chambers that are provided with respective inlets and outlets having valves incorporated therein and that are separated by a common partitioning wall structure. The wal...
09/15/1987
4143425Left atrial to descending thoracic aorta left ventricular assist device
An implanted tether-free externally powered motor with suitable reduction gearing drives a spirally grooved shaft having a ring housing for a shaft follower pin. A rectangular cross section chamber receives an ejection plate pivoted near one end to a firs...
03/13/1979
4058857Cardiac replacement pumping devices
A pumping device whose functioning resembles the action of the natural four chambered heart is constructed as a total cardiac replacement unit. An internal electrical drive motor adapted to be powered by radio frequency induction across intact skin drives...
11/22/1977
4058855Cardiac pumping device
A pulsatile flow pumping unit adapted to serve as a total cardiac replacement device, a cardiac assist pump for orthotopic placement, for extracorporeal application in conjunction with a membrane oxygenator for cardiopulmonary support during surgery or cr...
11/22/1977
4014318Circulatory assist device and system
A circulatory assist device and system are provided for controlling, wholly or partially, the pumping of blood through a blood vessel or vascular prosthesis. The assist device is comprised of an electrically operated plunger, or equivalent, which momentar...
03/29/1977
4004299Cardiac replacement and assist devices
In accordance with one embodiment of the invention, a total cardiac replacement device or four chambered heart for orthotopic placement is provided. This device is a pulsatile flow, synchronous ventricular ejection pump which closely simulates the action ...
01/25/1977
 
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