EP0103608A1 - Vascular prosthesis - Google Patents

Vascular prosthesis

Info

Publication number
EP0103608A1
EP0103608A1 EP83900954A EP83900954A EP0103608A1 EP 0103608 A1 EP0103608 A1 EP 0103608A1 EP 83900954 A EP83900954 A EP 83900954A EP 83900954 A EP83900954 A EP 83900954A EP 0103608 A1 EP0103608 A1 EP 0103608A1
Authority
EP
European Patent Office
Prior art keywords
transducer
prosthesis
tube
vascular prosthesis
transducers
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Withdrawn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
EP83900954A
Other languages
German (de)
French (fr)
Inventor
Robert Gordon Hood
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.)
J&P Coats Ltd
Original Assignee
J&P Coats Ltd
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 J&P Coats Ltd filed Critical J&P Coats Ltd
Publication of EP0103608A1 publication Critical patent/EP0103608A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6867—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive specially adapted to be attached or implanted in a specific body part
    • A61B5/6876—Blood vessel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0031—Implanted circuitry
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6879—Means for maintaining contact with the body
    • A61B5/6884—Clamps or clips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/06—Measuring blood flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
    • 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
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels

Definitions

  • the subject of this invention is a vascular prosthesis assembly and particularly a prosthesis assembly incorporating a tubular graft .to be used for replacing a portion of a blood vessel in a human or animal body.
  • vascular prostheses are becoming more and more widespread in the treatment of certain biological conditions but at present such prostheses are merely substitutes for blood vessels.
  • a prosthesis has been inserted as a graft in a blood vessel there is no way of knowing what is act ⁇ ually happening in the blood vessel without actually making a surgical examination.
  • a vascular prosthesis assembly incorporates a tube' of textile material incorporating at least one transducer sensitive to at least one of the conditions to be monitored attached to the tube wall so that the sensitive portion of the transducer is exposed to the interior of the tube and a transmitting device to which the transducer is connected arranged to transmit a radio signal which carries information about conditions prevailing in blood passing through the prosthesis.
  • the prosthesis may incorporate several transducers each sensitive to a different characteristic.
  • transducer sensitive to blood pressure there may be incorporated a transducer sensitive to the pH value of the blood, there may be incorporated a transducer sensitive to temperature.
  • transducer sensitive to temperature There may be incorporated in the prosthesis . two transducers spaced axially from one another, one transducer being a sound-emitting transducer and the other transducer being a sound-receiving transducer and computing means capable of determining the rate of flow of blood through the prosthesis, for example by use of the d ⁇ ppler effect.
  • the transducers may be incorporated in the structure of the prosthesis or may be attached to the prosthesis by bio-compatible adhesive.
  • the signals produced by the transducers may be such that they can be picked up ' by a receiver located outside the body at a distance from the body or it may be arranged that they are picked up by a receiver located at another organ in the body, that receiver being arranged to stimulate that organ to operate in accordance with the signal received whereby to compensate for some undesirable effect or trend perceived by the transducer in the prosthesis.
  • transducers sensitive to characteristics to be monitored denotes transducers sensitive to characteristics to be monitored and 3 and 4 are two transducers one of which is capable of issuing a sonic signal and the other is capable of receiving a sonic signal.
  • 5 denotes computing means in the form of a micro-computer arranged to control operation of the transducers 3 and 4.
  • 6 denotes a radio transmitter arranged totransmit as radio signals the signals from the transducers and from the micro- computer.
  • the transmitter and the micro-computer are incorporated in a separate capsule which may be located at a remote point, for example the capsule may be located for convenience of access in a subcutaneous position.
  • the transmitter and the micro-computer may be located in separate capsules or in the same capsule which may be located on the graft or at another convenient site.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Vascular Medicine (AREA)
  • Radiology & Medical Imaging (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Hematology (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Pulmonology (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Prostheses (AREA)

Abstract

Une prothèse vasculaire pour remplacer une section d'un vaisseau sanguin dans un corps animal ou humain incorpore un tube (1) en une matière textile comprenant au moins un transducteur (2, ou 3, 4) fixé à la paroi du tube, et un dispositif émetteur (6) connecté au transducteur pour transmettre un signal radio et pour transmettre ainsi des renseignements sur des conditions détectées par le transducteur.A vascular prosthesis for replacing a section of a blood vessel in an animal or human body incorporates a tube (1) of a textile material comprising at least one transducer (2, or 3, 4) fixed to the wall of the tube, and a transmitter device (6) connected to the transducer for transmitting a radio signal and thereby transmitting information about conditions detected by the transducer.

Description

The subject of this invention is a vascular prosthesis assembly and particularly a prosthesis assembly incorporating a tubular graft .to be used for replacing a portion of a blood vessel in a human or animal body.
The use of vascular prostheses is becoming more and more widespread in the treatment of certain biological conditions but at present such prostheses are merely substitutes for blood vessels. In other words once a prosthesis has been inserted as a graft in a blood vessel there is no way of knowing what is act¬ ually happening in the blood vessel without actually making a surgical examination.
It would be of great advantage if a patient fitted with a vascular prosthesis could be monitored afterwards without the necessity for later surgical examination or a cybernetic reaction could be initiated on other associated organs automatically in accordance with conditions prevailing in the patient's blood. It is an object of the present invention to provide a prosthesis which makes these desirable objectives possible.
A vascular prosthesis assembly according to the invention incorporates a tube' of textile material incorporating at least one transducer sensitive to at least one of the conditions to be monitored attached to the tube wall so that the sensitive portion of the transducer is exposed to the interior of the tube and a transmitting device to which the transducer is connected arranged to transmit a radio signal which carries information about conditions prevailing in blood passing through the prosthesis.
The prosthesis may incorporate several transducers each sensitive to a different characteristic.
For example there may be incorporated a transducer sensitive to blood pressure, there may be incorporated a transducer sensitive to the pH value of the blood, there may be incorporated a transducer sensitive to temperature. There may be incorporated in the prosthesis . two transducers spaced axially from one another, one transducer being a sound-emitting transducer and the other transducer being a sound-receiving transducer and computing means capable of determining the rate of flow of blood through the prosthesis, for example by use of the dδppler effect.
The transducers may be incorporated in the structure of the prosthesis or may be attached to the prosthesis by bio-compatible adhesive.
The signals produced by the transducers may be such that they can be picked up'by a receiver located outside the body at a distance from the body or it may be arranged that they are picked up by a receiver located at another organ in the body, that receiver being arranged to stimulate that organ to operate in accordance with the signal received whereby to compensate for some undesirable effect or trend perceived by the transducer in the prosthesis.
A practical embodiment of the invention is illustrated in the accompanying drawing in which 1 denotes a tube of textile material constituting a prosthesis,
2 denotes transducers sensitive to characteristics to be monitored and 3 and 4 are two transducers one of which is capable of issuing a sonic signal and the other is capable of receiving a sonic signal. 5 denotes computing means in the form of a micro-computer arranged to control operation of the transducers 3 and 4. 6 denotes a radio transmitter arranged totransmit as radio signals the signals from the transducers and from the micro- computer. In the illustrated embodiment the transmitter and the micro-computer are incorporated in a separate capsule which may be located at a remote point, for example the capsule may be located for convenience of access in a subcutaneous position. However, the transmitter and the micro-computer may be located in separate capsules or in the same capsule which may be located on the graft or at another convenient site.
As a result of modern technology there are at present available transducers, radio transmitters and micro-computers small enough to be incorporated in a vascular prosthesis without deleterious effect on the operation of the prosthesis.
OMPI

Claims

1. A vascular prosthesis assembly comprising a tube (1) of textile material is characterized in that the tube incorporates at least .one transducer
(2 or 3, 4) sensitive to at least one of the conditions to be monitored attached to the tube wall so that the sensitive portion of the transducer is exposed to the interior of the tube and a radio transmitting device (6) to which the transducer is connected to transmit a radio signal which carries information about conditions prevailing in blood passing through the prosthesis.
2. A vascular prosthesis assembly according to claim 1 characterized in that the prosthesis " incorporates two transducers (3, 4) spaced axially from one another, one transducer (3 or 4) being a sound- emitting transducer and the other transducer (4 or 3) being a sound-receiving transducer and computing means (5) capable of determining the rate of flow of blood through the prosthesis, for example by use of the dδppler effect.
OMPI
EP83900954A 1982-03-25 1983-03-24 Vascular prosthesis Withdrawn EP0103608A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8208865 1982-03-25
GB8208865 1982-03-25

Publications (1)

Publication Number Publication Date
EP0103608A1 true EP0103608A1 (en) 1984-03-28

Family

ID=10529290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83900954A Withdrawn EP0103608A1 (en) 1982-03-25 1983-03-24 Vascular prosthesis

Country Status (7)

Country Link
EP (1) EP0103608A1 (en)
JP (1) JPS59500552A (en)
DK (1) DK531883A (en)
ES (1) ES8403311A1 (en)
GR (1) GR77132B (en)
IT (2) IT8335710V0 (en)
WO (1) WO1983003348A1 (en)

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JPH0433647A (en) * 1990-05-30 1992-02-05 Shigeru Saito Artificial tooth root
AU1644792A (en) * 1991-03-04 1992-10-06 Kensey Nash Corporation Apparatus and method for determining in vivo the instantaneous velocity of the flow of blood in a living being
AU1569492A (en) * 1991-03-04 1992-10-06 Kensey Nash Corporation Determining the instantaneous shear stress on the wall of a blood vessel
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EP0897690B1 (en) 1997-08-15 2013-04-24 Academisch Ziekenhuis Leiden h.o.d.n. LUMC Pressure sensor for use in an aneurysmal sac
US5967986A (en) * 1997-11-25 1999-10-19 Vascusense, Inc. Endoluminal implant with fluid flow sensing capability
SG71881A1 (en) * 1998-01-08 2000-04-18 Microsense Cardiovascular Sys Method and device for fixation of a sensor in a bodily lumen
US6331163B1 (en) 1998-01-08 2001-12-18 Microsense Cardiovascular Systems (1196) Ltd. Protective coating for bodily sensor
WO2000032092A1 (en) * 1998-11-25 2000-06-08 Ball Semiconductor, Inc. Intraluminal monitoring system
GB2344053A (en) * 1998-11-30 2000-05-31 Imperial College Stents for blood vessels
US6308715B1 (en) * 1999-03-24 2001-10-30 Pmd Holdings Corp. Ultrasonic detection of restenosis in stents
US6309350B1 (en) * 1999-05-03 2001-10-30 Tricardia, L.L.C. Pressure/temperature/monitor device for heart implantation
US6416474B1 (en) 2000-03-10 2002-07-09 Ramon Medical Technologies Ltd. Systems and methods for deploying a biosensor in conjunction with a prosthesis
US6699186B1 (en) 2000-03-10 2004-03-02 Remon Medical Technologies Ltd Methods and apparatus for deploying and implantable biosensor
US6840956B1 (en) 2000-03-10 2005-01-11 Remon Medical Technologies Ltd Systems and methods for deploying a biosensor with a stent graft
US6783499B2 (en) 2000-12-18 2004-08-31 Biosense, Inc. Anchoring mechanism for implantable telemetric medical sensor
US6638231B2 (en) 2000-12-18 2003-10-28 Biosense, Inc. Implantable telemetric medical sensor and method
US6652464B2 (en) 2000-12-18 2003-11-25 Biosense, Inc. Intracardiac pressure monitoring method
US6746404B2 (en) 2000-12-18 2004-06-08 Biosense, Inc. Method for anchoring a medical device between tissue
US6855115B2 (en) 2002-01-22 2005-02-15 Cardiomems, Inc. Implantable wireless sensor for pressure measurement within the heart
US7261733B1 (en) 2002-06-07 2007-08-28 Endovascular Technologies, Inc. Endovascular graft with sensors design and attachment methods
US7025778B2 (en) 2002-06-07 2006-04-11 Endovascular Technologies, Inc. Endovascular graft with pressure, temperature, flow and voltage sensors
US7399313B2 (en) 2002-06-07 2008-07-15 Brown Peter S Endovascular graft with separable sensors
US7488345B2 (en) * 2002-06-07 2009-02-10 Endovascular Technologies, Inc. Endovascular graft with pressor and attachment methods
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US8026729B2 (en) 2003-09-16 2011-09-27 Cardiomems, Inc. System and apparatus for in-vivo assessment of relative position of an implant
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US8934987B2 (en) 2008-07-15 2015-01-13 Cardiac Pacemakers, Inc. Implant assist apparatus for acoustically enabled implantable medical device
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US8475372B2 (en) 2010-10-29 2013-07-02 Medtronic Vascular, Inc. Implantable medical sensor and fixation system
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Also Published As

Publication number Publication date
ES520933A0 (en) 1984-03-16
GR77132B (en) 1984-09-07
IT8347995A0 (en) 1983-03-25
DK531883D0 (en) 1983-11-21
IT8335710V0 (en) 1983-03-25
WO1983003348A1 (en) 1983-10-13
JPS59500552A (en) 1984-04-05
ES8403311A1 (en) 1984-03-16
DK531883A (en) 1983-11-21

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19831220

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB LI LU NL SE

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TCAT At: translation of patent claims filed
DET De: translation of patent claims
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19850602

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HOOD, ROBERT GORDON