DE2426317A1 - Device simulating peristaltic waves in haemocyte free vessel valve - has hydraulically pumped elastic chambers acting as valves - Google Patents

Device simulating peristaltic waves in haemocyte free vessel valve - has hydraulically pumped elastic chambers acting as valves

Info

Publication number
DE2426317A1
DE2426317A1 DE19742426317 DE2426317A DE2426317A1 DE 2426317 A1 DE2426317 A1 DE 2426317A1 DE 19742426317 DE19742426317 DE 19742426317 DE 2426317 A DE2426317 A DE 2426317A DE 2426317 A1 DE2426317 A1 DE 2426317A1
Authority
DE
Germany
Prior art keywords
valve
peristaltic waves
haemocyte
valves
vessel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19742426317
Other languages
German (de)
Inventor
Juan N Walterspiel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE19742426317 priority Critical patent/DE2426317A1/en
Publication of DE2426317A1 publication Critical patent/DE2426317A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/10—Location thereof with respect to the patient's body
    • A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
    • A61M60/165—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable in, on, or around the heart
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/20—Type thereof
    • A61M60/247—Positive displacement blood pumps
    • A61M60/253—Positive displacement blood pumps including a displacement member directly acting on the blood
    • A61M60/268—Positive displacement blood pumps including a displacement member directly acting on the blood the displacement member being flexible, e.g. membranes, diaphragms or bladders
    • A61M60/279—Peristaltic pumps, e.g. roller pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/40—Details relating to driving
    • A61M60/424—Details relating to driving for positive displacement blood pumps
    • A61M60/427—Details relating to driving for positive displacement blood pumps the force acting on the blood contacting member being hydraulic or pneumatic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/80—Constructional details other than related to driving
    • A61M60/855—Constructional details other than related to driving of implantable pumps or pumping devices
    • A61M60/89—Valves
    • A61M60/892—Active valves, i.e. actuated by an external force
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0003—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having an inflatable pocket filled with fluid, e.g. liquid or gas

Abstract

In an addition to P24 23 673 a device to simulate peristaltic waves in a haemocyte free internal vessel valve system uses alternating in and out pumping cycles of a hydraulic fluid into ring type stacked chambers constructed of elastic material which have reinforcement elements to strengthen their construction. When the elastic inner material is fully inflated it closes the vessel and can, by external control, then act as a valve. When used as a valve the internal diameter of the vessel may also be closed by several similar or variously shaped inflatable pads. The principle can be used in the construction of a heart valve.

Description

Um die peristaltischen Wellen flüssiger zu machen, ware es günstig, wenn das Einspritzen u. Absaugen der hydraulischen Flüssigkeit durch sich in Pumprichtung bewegende Düsen bewerkstelligt wird Die mechanische Realisation wäre ein Problem, das ich für lösbar betrachte.To make the peristaltic waves more fluid, it would be beneficial to when the injection and suction of the hydraulic fluid is carried out in the pumping direction moving nozzles is accomplished The mechanical realization would be a problem, that I consider solvable.

Eine andere Nöglichkeit,die peristaltischen Wellen zu erzeugen,wäre das Einpumpen u. Absaugen der hydraulischen Flüssigkeit in ringförmige rammern aus elastischem Material.Another way to create the peristaltic waves would be the pumping in and suction of the hydraulic fluid in ring-shaped rams elastic material.

z.b. bb. u.N Abb.N = ein Model mit schmaleren Ringkammern o = starre Bänder in den liammerndie ein"in die Breite" gehen dieser verhindern.e.g. bb. U.N Fig.N = a model with narrower annular chambers o = rigid straps in the clips that prevent them from going "wide".

Das gleiche prinzip ist anwendbar für die Construktion einer künstlichen funktionellen Herzklappe,die möglicherweise weniger Haemolyse hervorruft als die güngigen Ballventile, vorrausgesetzt es existiert ein geeignetes Material mit genügenden elastizität u.Oberflächeneigeschaft. The same principle can be used for the construction of an artificial functional heart valve, which possibly causes less hemolysis than the cheap ball valves, provided there is a suitable material with sufficient elasticity and surface properties.

Abb.Ru.Q, zwei Mögligkeiten, wie solche Verschlüsse durch aufblasbare "Kissen "aussehen könnten.Fig.Ru.Q, two ways such closures by inflatable "Pillows" could look like.

s = hydr.Flüssigkeit die wissen aufbläst.s = hydraulic fluid that inflates knowledge.

Die Zeiten des Schließens (pumpen)u. Öffnens(saugen) können durch einen Druckmessfühler in einem der Kissen oder im Ventrikel gesteuert werden.Dieseskann auch durch ein an dieser Stelle abgeleitetes E.K.G. geschehen.The times of closing (pumping) u. Opening (sucking) can through A pressure sensor in one of the pillows or in the ventricle can be controlled also by an E.K.G. happen.

z.b. Aortenklappe: @ P P in A.ascendens p li.Ventr.e.g. aortic valve: @ PP in A.ascendens p li.Ventr.

Geöffnet oder geschlossen (Abb. R ) wird jeweils dann, wenn das Integral der Druckverlaufskurve im Kissen (ähnlich des P.in der A.ascend.) minus dem artifiziellen Druck im Kissen eine bestimmten Wert erreicht oder beim E,K,G. nach der S u.T. Welle.Opened or closed (Fig. R) is when the integral the pressure curve in the pillow (similar to the P. in the A.ascend.) minus the artificial Pressure in the pillow reaches a certain value or at E, K, G. after the S u.T. Wave.

Die Elektronik für so etwas dürfte existieren.The electronics for something like that should exist.

Die Kissenränder brauchen nicht unbedingt fest zu schließen ( aemolyse ) sonderskönnen einen dünnen Spalt offenlassen Die kleine Insufiziens ist unbedeutend oder kann durch hintereinanderschalten mehrer solcher gesteuerten Ventile verringert werden.The edges of the pillow do not necessarily have to be tightly closed (aemolysis ) you can leave a thin crack open. The small insufficiency is insignificant or can be reduced by connecting several such controlled valves in series will.

Claims (1)

Patentanspruch zu P 24 26 317.0Claim to P 24 26 317.0 Vorschlag zur Erzeugung der peristaltischen Wellen Konstruktion einer Dadurch gekennzeichnet,daß die peristaltischen Wellen durch das alternierende ein u. auspumpen hydraulischer Flüssigkeit in ringförmige, übereinander liegende Kammern aus elastischem Material,hervorgerufen werden,die aus Gründen der Stabilität innen u. außen durch starre Elemente verbunden sind Wenn ein solcher Ring voll aufgepumpt ist,knn er das Lumen verschließen u.so wenn er von außen gesteuert wird als Ventil dienen.Proposal for generating the peristaltic waves Construction of a Characterized in that the peristaltic waves are caused by the alternating pumping in and out of hydraulic fluid in annular, superimposed chambers made of elastic material, which are connected inside and outside by rigid elements for reasons of stability when such a ring is fully inflated , it can close the lumen and serve as a valve if it is controlled from the outside. In diesem Falle kann das Samen auch durch mehrere verschieden oder gleich geformte Kissen,die sich in aufgepumpten Zustand eben gerade nicht benihren abgedichtet werden.In this case the seed can also be different or by several equally shaped cushions that just don't feel good when inflated be sealed.
DE19742426317 1974-05-29 1974-05-29 Device simulating peristaltic waves in haemocyte free vessel valve - has hydraulically pumped elastic chambers acting as valves Withdrawn DE2426317A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19742426317 DE2426317A1 (en) 1974-05-29 1974-05-29 Device simulating peristaltic waves in haemocyte free vessel valve - has hydraulically pumped elastic chambers acting as valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742426317 DE2426317A1 (en) 1974-05-29 1974-05-29 Device simulating peristaltic waves in haemocyte free vessel valve - has hydraulically pumped elastic chambers acting as valves

Publications (1)

Publication Number Publication Date
DE2426317A1 true DE2426317A1 (en) 1975-12-11

Family

ID=5916941

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742426317 Withdrawn DE2426317A1 (en) 1974-05-29 1974-05-29 Device simulating peristaltic waves in haemocyte free vessel valve - has hydraulically pumped elastic chambers acting as valves

Country Status (1)

Country Link
DE (1) DE2426317A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4080958A (en) * 1976-02-27 1978-03-28 Datascope Corporation Apparatus for aiding and improving the blood flow in patients

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4080958A (en) * 1976-02-27 1978-03-28 Datascope Corporation Apparatus for aiding and improving the blood flow in patients

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Legal Events

Date Code Title Description
OGA New person/name/address of the applicant
8141 Disposal/no request for examination