IT202100022493A1 - System for measuring the force opposed to the penetration of a guide inside a catheter, to be integrated with the system for measuring the forces opposed by the body - Google Patents

System for measuring the force opposed to the penetration of a guide inside a catheter, to be integrated with the system for measuring the forces opposed by the body Download PDF

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Publication number
IT202100022493A1
IT202100022493A1 IT102021000022493A IT202100022493A IT202100022493A1 IT 202100022493 A1 IT202100022493 A1 IT 202100022493A1 IT 102021000022493 A IT102021000022493 A IT 102021000022493A IT 202100022493 A IT202100022493 A IT 202100022493A IT 202100022493 A1 IT202100022493 A1 IT 202100022493A1
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IT
Italy
Prior art keywords
measuring
catheter
opposed
guide
force
Prior art date
Application number
IT102021000022493A
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Italian (it)
Inventor
Guido Danieli
Original Assignee
Guido Danieli
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 Guido Danieli filed Critical Guido Danieli
Priority to PCT/IT2021/000042 priority Critical patent/WO2022049609A1/en
Priority to IT102021000022493A priority patent/IT202100022493A1/en
Priority to US18/023,774 priority patent/US20230321399A1/en
Publication of IT202100022493A1 publication Critical patent/IT202100022493A1/en

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Description

Sistema per misurare la forza opposta alla penetrazione di una guida all?interno di un catetere, da integrare al sistema di misura delle forze opposte dal corpo all?avanzamento di guide e cateteri descritto nella domanda PCT/IT2020/050109 Stato dell?arte System for measuring the force opposed to the penetration of a guide inside a catheter, to be integrated with the system for measuring the forces opposed by the body to the advancement of guides and catheters described in application PCT/IT2020/050109 State of the art

La misura della forza opposta dall?organismo alla penetrazione di guide o cateteri pu? essere estremamente importante per evitare danneggiamenti del sistema venoso od arterioso. Per questo sono stati sviluppati cateteri dotati in punta di sensori, ma, ad esempio la Corindus, ha studiato un sistema complesso per comandare l?introduzione di un catetere facendogli fare un giro intorno ad un elemento rotante spinto da una molla, che per? provocava delle curvature piuttosto pronunciate al catetere, mentre il sistema di cui al PCT citato non toccava neanche il catetere, limitandosi a percepire le variazioni di forza su di un cavo cui era appeso il gruppo di spinta di guida e catetere, posto su di una slitta inclinata verso il paziente, per cui era sempre presente la tensione che manteneva il gruppo di spinta fermo pur soggetto alla gravit? che tendeva a farlo scivolare verso il paziente. In questo caso il sistema misurava qualsiasi forza esterna che agisse su quanto usciva dal gruppo di spinta, senza saper distinguere se la spinta era causata dall?avanzamento della guida o da quello del catetere, e non permetteva di comprendere quale fosse l?attrito incontrato dalla guida nel penetrare il catetere. A ci? pone rimedio la presente invenzione, introducendo un secondo sensore collegato al Robot di spinta della guida, posto anche esso sulla slitta inclinata, ma mosso rispetto al robot di spinta del catetere, da una cinghia o meglio da una vite senza fine. E? sufficiente a questo punto introdurre un ulteriore sensore tra il robot di spinta e la madrevite, che registrer? appunto la forza che si oppone all?avanzamento della guida, da qualsiasi cosa si opponga a questo. The measure of the force opposed by the body to the penetration of guides or catheters can? be extremely important to avoid damage to the venous or arterial system. For this reason, catheters equipped with sensors at the tip have been developed, but, for example, Corindus has studied a complex system to control the introduction of a catheter by making it make a turn around a rotating element pushed by a spring, which however? caused rather pronounced curvatures to the catheter, while the system referred to in the aforementioned PCT did not even touch the catheter, limiting itself to perceiving the force variations on a cable from which the guide and catheter thrust group was hung, placed on a sled inclined towards the patient, so that there was always the tension that kept the pusher stationary despite being subject to gravity? which tended to make it slide towards the patient. In this case the system measured any external force acting on what came out of the thrust group, without being able to distinguish whether the thrust was caused by the advancement of the guide or by that of the catheter, and it did not allow us to understand what was the friction encountered by the guide in penetrating the catheter. To there? the present invention remedies, introducing a second sensor connected to the guide pushing robot, also placed on the inclined slide, but moved with respect to the catheter pushing robot, by a belt or better still by a worm screw. AND? sufficient at this point to introduce a further sensor between the push robot and the lead screw, which will record? precisely the force that opposes the advancement of the guide, from anything that opposes this.

Descrizione della realizzazione preferita. Description of the preferred embodiment.

La Figura 1 mostra appunto in sezione uno schema che presenta la slitta (1) posta su un supporto (2) fisso inclinato verso il paziente, trattenuto in posizione da un cavo (3) collegato al supporto fisso e tenuto parallelo alla direzione della slitta, che coincide anche con la direzione di moto di guida e cateteri e che agisce su un sensore (4) che pu? essere posto sia sulla slitta che sul supporto fisso, mentre sulla slitta ? fissato il primo robot di spinta che agisce sul catetere (5), mentre il secondo robot di spinta della guida (6) ? posto su di una piastra mobile spinta da una cinghia, o meglio da una vite senza fine, e relativa madrevite (7), azionata da un motore a passi (8) mentre tra piastra mobile e madrevite posto un secondo sensore di forza (9), che realizza la possibilit? di leggere, nuovamente per differenza tra la componente della gravit? che agisce nella direzione della slitta, e le forze che si oppongono al di fuori del Robot di spinta, all?avanzamento della guida. Figure 1 shows a sectional diagram showing the slide (1) placed on a fixed support (2) inclined towards the patient, held in position by a cable (3) connected to the fixed support and held parallel to the direction of the slide, which also coincides with the direction of motion of the guide and catheters and which acts on a sensor (4) which can? be placed both on the slide and on the fixed support, while on the slide ? fixed the first push robot acting on the catheter (5), while the second push robot of the guide (6) ? placed on a movable plate pushed by a belt, or rather by a worm screw, and relative nut (7), driven by a step motor (8) while a second force sensor (9) is placed between the movable plate and the nut screw , who realizes the possibility? to read, again for the difference between the component of gravity? which acts in the direction of the sled, and the forces which oppose outside the Pushing Robot, to the advancement of the guide.

Claims (1)

RivendicazioniClaims 1. Metodo per misurare la forza opposta alla penetrazione di una guida all?interno di un catetere, da integrare al sistema di misura delle forze opposte dal corpo all?avanzamento di guide e cateteri descritto nella domanda PCT/IT2020/050109 basato sull?utilizzo di una slitta montata su un supporto rigido inclinato verso il paziente, e mantenuta in posizione tramite un cavo collegato alla parte fissa e parallelo alla direzione della slitta che coincide anche con la direzione di moto di guida e cateteri e che presenta ad una delle due estremit? un sensore di forza, mentre sulla slitta, dalla parte del paziente, ? fissato un primo robot di spinta e rotazione del catetere, mentre il secondo robot di spinta e rotazione della guida ? posto su di una piattaforma mobile, mossa da una cinghia o da una vite senza fine, essendo un secondo sensore interposto ad esempio tra la madrevite ela piattaforma mobile, che misura la forzasempre nella direzione parallela a quella della slitta, che realizza la possibilit? di leggere, nuovamente per differenza tra la componente della gravit? che agisce nella direzione della slitta, e le forze che si oppongono al di fuori del Robot di spinta, all?avanzamento della guida. 1. Method for measuring the force opposed to the penetration of a guide inside a catheter, to be integrated into the system for measuring the forces opposed by the body to the advancement of guides and catheters described in application PCT/IT2020/050109 based on the use of a sled mounted on a rigid support inclined towards the patient, and kept in position by a cable connected to the fixed part and parallel to the direction of the sled which also coincides with the direction of motion of the guide and catheters and which has at one end ? a force sensor, while on the slide, on the patient's side, ? fixed a first robot for thrust and rotation of the catheter, while the second robot for thrust and rotation of the guide ? placed on a mobile platform, moved by a belt or by a worm screw, being a second sensor interposed for example between the nut screw and the mobile platform, which measures the force always in the direction parallel to that of the slide, which realizes the possibility? to read, again for the difference between the component of gravity? which acts in the direction of the sled, and the forces which oppose outside the Pushing Robot, to the advancement of the guide.
IT102021000022493A 2020-09-01 2021-08-30 System for measuring the force opposed to the penetration of a guide inside a catheter, to be integrated with the system for measuring the forces opposed by the body IT202100022493A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/IT2021/000042 WO2022049609A1 (en) 2020-09-01 2021-08-30 Roses system for endovascular surgery
IT102021000022493A IT202100022493A1 (en) 2021-08-30 2021-08-30 System for measuring the force opposed to the penetration of a guide inside a catheter, to be integrated with the system for measuring the forces opposed by the body
US18/023,774 US20230321399A1 (en) 2020-09-01 2021-08-30 Roses system for endovascular surgery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102021000022493A IT202100022493A1 (en) 2021-08-30 2021-08-30 System for measuring the force opposed to the penetration of a guide inside a catheter, to be integrated with the system for measuring the forces opposed by the body

Publications (1)

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IT202100022493A1 true IT202100022493A1 (en) 2023-03-02

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IT102021000022493A IT202100022493A1 (en) 2020-09-01 2021-08-30 System for measuring the force opposed to the penetration of a guide inside a catheter, to be integrated with the system for measuring the forces opposed by the body

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