IT202000019642A1 - COMPRESSED AIR HEMOSTATIC POWDER DISPENSER, EQUIPPED WITH BIOCOMPATIBLE CANNULA, TO BE USED IN THE FIRST TREATMENT OF WOUNDS FROM FIREARM OR CUT - Google Patents

COMPRESSED AIR HEMOSTATIC POWDER DISPENSER, EQUIPPED WITH BIOCOMPATIBLE CANNULA, TO BE USED IN THE FIRST TREATMENT OF WOUNDS FROM FIREARM OR CUT Download PDF

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Publication number
IT202000019642A1
IT202000019642A1 IT102020000019642A IT202000019642A IT202000019642A1 IT 202000019642 A1 IT202000019642 A1 IT 202000019642A1 IT 102020000019642 A IT102020000019642 A IT 102020000019642A IT 202000019642 A IT202000019642 A IT 202000019642A IT 202000019642 A1 IT202000019642 A1 IT 202000019642A1
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cannula
wounds
treatment
compressed air
firearm
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IT102020000019642A
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Italian (it)
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Gaetano Mauro
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Gaetano Mauro
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Priority to IT102020000019642A priority Critical patent/IT202000019642A1/en
Publication of IT202000019642A1 publication Critical patent/IT202000019642A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00491—Surgical glue applicators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • 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
    • A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
    • A61M11/006—Sprayers or atomisers specially adapted for therapeutic purposes operated by applying mechanical pressure to the liquid to be sprayed or atomised
    • A61M11/007—Syringe-type or piston-type sprayers or atomisers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P17/00—Drugs for dermatological disorders
    • A61P17/02—Drugs for dermatological disorders for treating wounds, ulcers, burns, scars, keloids, or the like
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P7/00—Drugs for disorders of the blood or the extracellular fluid
    • A61P7/04—Antihaemorrhagics; Procoagulants; Haemostatic agents; Antifibrinolytic agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
    • A61B2017/00473—Distal part, e.g. tip or head
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00491—Surgical glue applicators
    • A61B2017/00522—Sprayers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00535—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated
    • A61B2017/00544—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated pneumatically
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
    • A61B2017/00637—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for sealing trocar wounds through abdominal wall
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
    • A61B2017/00646—Type of implements
    • A61B2017/0065—Type of implements the implement being an adhesive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
    • A61B2017/00646—Type of implements
    • A61B2017/00654—Type of implements entirely comprised between the two sides of the opening
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00884—Material properties enhancing wound closure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00898—Material properties expandable upon contact with fluid
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B2017/12004—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for haemostasis, for prevention of bleeding
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2400/00—Materials characterised by their function or physical properties
    • A61L2400/04—Materials for stopping bleeding

Description

DESCRIZIONE DESCRIPTION

annessa a domanda di brevetto per INVENZIONE INDUSTRIALE avente per titolo annexed to a patent application for INDUSTRIAL INVENTION having the title

?Erogatore di polvere emostatica ad aria compressa, dotato di cannula biocompatibile, da usare nel primo trattamento di ferite da arma da fuoco o da taglio? ?Compressed air hemostatic powder dispenser, equipped with biocompatible cannula, to be used in the initial treatment of gunshot or stab wounds?

Breve descrizione dell?invenzione Brief description of the invention

Uno degli interventi pi? importanti che i primi soccorritori di feriti da arma da fuoco o da taglio devono assicurare ? una rapida emostasi delle ferite: ? quindi fondamentale la disponibilit? di dispostivi di semplice e rapido impiego, ma nel contempo di sicura efficacia, in grado di ottenere l?emostasi nelle diverse situazioni di sede, profondit? ed estensione delle ferite. One of the interventions important things that first responders of gunshot or stab wounds need to ensure? rapid hemostasis of wounds: ? therefore the availability is fundamental? of devices that are simple and quick to use, but at the same time highly effective, capable of obtaining hemostasis in the various situations of location, depth? and extent of wounds.

Esistono in commercio vari tipi di dispositivi e materiali emostatici, ma sussiste tuttora l?esigenza di svilupparne modelli sempre migliori, specialmente in settori quali quello della sanit? militare, del primo soccorso e della medicina d?urgenza, in cui ci si trova spesso a dover fronteggiare situazioni di gravit? estrema. There are various types of hemostatic devices and materials on the market, but there is still a need to develop ever better models, especially in sectors such as healthcare and healthcare. military, first aid and emergency medicine, where you often find yourself having to deal with situations of seriousness? extreme.

Oggetto della presente invenzione ? un dispositivo medico costituito da una pistola meccanica in grado di veicolare in modo atraumatico, attraverso una cannula cilindrica in materiale biocompatibile, emostatici chirurgici in polvere, massimizzandone l?efficacia e rapidit? di azione e agendo a livello delle emorragie sia dei piccoli vasi (tramite l?azione emostatica diretta della polvere) che dei grandi vasi (mediante l?azione compressiva dovuta al rigonfiamento della cannula atraumatica di veicolazione). Object of the present invention ? a medical device consisting of a mechanical gun capable of conveying in an atraumatic way, through a cylindrical cannula in biocompatible material, surgical powdered haemostatics, maximizing their effectiveness and speed? of action and acting at the level of hemorrhages both in the small vessels (through the direct haemostatic action of the powder) and in the large vessels (through the compressive action due to the swelling of the atraumatic cannula).

Un sistema di rilascio della cannula permette la separazione degli elementi meccanici dalle parti prettamente emostatiche del dispositivo, limitando gli ingombri e facilitando la movimentazione del ferito. A cannula release system allows the separation of the mechanical elements from the purely hemostatic parts of the device, limiting the overall dimensions and facilitating the movement of the injured person.

Il dispositivo ? concepito per consentire l?autoutilizzo da parte del ferito con minima residua attivit? di coscienza. The device ? conceived to allow the? Self-use by the wounded with minimum residual activity? of conscience.

Stato dell'arte della tecnologia proposta Attualmente sono in commercio numerosi dispositivi contenenti polveri emostatiche di origine vegetale o animale. Tali strumenti, tuttavia, non sono ottimizzati per l?applicazione in strati tissutali profondi esposti e traumatizzati dall?effetto di armi da fuoco. State of the art of the proposed technology Numerous devices containing haemostatic powders of vegetable or animal origin are currently on the market. However, these instruments are not optimized for application in deep tissue layers exposed and traumatized by firearms impact.

Esistono alcuni applicatori, oggetto di precedenti brevetti (es. KR20040030859A, JP5999778B2, DE102010061059B4), atti a veicolare emostatici in polvere in cavit? create chirurgicamente, ad esempio in interventi laparoscopici. Tali applicatori, tuttavia, risultano inadatti nell?emostasi di urgenza in ferite da arma da fuoco, in quanto eccessivamente rigidi. Are there some applicators, the subject of previous patents (e.g. KR20040030859A, JP5999778B2, DE102010061059B4), suitable for conveying powdered hemostatics into cavities? created surgically, for example in laparoscopic procedures. However, these applicators are unsuitable for emergency hemostasis in gunshot wounds, as they are excessively rigid.

Altri dispositivi emostatici specifici per ferite (FR2863503A1, US20080299226A1, JP2019209160A) sono suscettibili di miglioramento in termini efficacia e rapidit? di azione. Other specific hemostatic devices for wounds (FR2863503A1, US20080299226A1, JP2019209160A) are likely to improve in terms of efficacy and rapidity? of action.

Tutti i dispositivi attualmente in utilizzo hanno, inoltre, la limitazione di dover essere impiegati da operatori sanitari specializzati: le caratteristiche di autosomministrazione dell?emostatico rappresentano un aspetto particolarmente interessante dell?invenzione proposta. Furthermore, all the devices currently in use have the limitation of having to be used by specialized healthcare operators: the self-administration characteristics of the hemostatic represent a particularly interesting aspect of the proposed invention.

Esposizione dell'invenzione Exhibition of the invention

? oggetto della presente invenzione un dispositivo medico da utilizzare nel primo trattamento di ferite da arma da fuoco o da taglio, in grado di erogare emostatico chirurgico in polvere. ? object of the present invention is a medical device to be used in the initial treatment of gunshot or stab wounds, capable of delivering surgical haemostatic powder.

La polvere ? contenuta in una cannula cilindrica multiforata, realizzata in materiale biocompatibile e a sua volta con propriet? emostatiche. The dust ? contained in a multi-perforated cylindrical cannula, made of biocompatible material and in turn with properties hemostatics.

Forma oggetto della presente invenzione un dispositivo medico secondo l?allegata Rivendicazione 1. The object of the present invention is a medical device according to the attached Claim 1.

Forme di realizzazione preferite sono esposte nelle rivendicazioni dipendenti. Preferred embodiments are set forth in the dependent claims.

La presente invenzione sar? compresa in base alla seguente descrizione particolareggiata esemplificativa, assolutamente non limitativa di essa, in riferimento a sue specifiche forme di realizzazione. The present invention will be understood on the basis of the following detailed exemplifying, absolutely non-limiting description thereof, with reference to its specific embodiments.

Con riferimento alla Fig.1, il sistema propulsivo ? costituito da una pistola ad aria tipo molla-pistone (1: impugnatura, 2: grilletto, 3: molla, 4: pistone, 5: camera di compressione). La pistola ? precaricata in modo che il dispositivo sia pronto all?uso anche per una eventuale autosomministrazione dell?emostatico da parte del ferito. With reference to Fig.1, the propulsion system ? consisting of a spring-piston type air pistol (1: handle, 2: trigger, 3: spring, 4: piston, 5: compression chamber). The gun ? preloaded so that the device is ready for use even for a possible self-administration of the hemostatic by the injured person.

Per azione del flusso di aria compressa dal pistone, la polvere fuoriesce dai fori della cannula e viene dispersa sulla superficie lesa. Due to the action of the flow of compressed air from the piston, the powder comes out of the holes of the cannula and is dispersed over the injured surface.

La cannula (8) ? in cellulosa ossidata rigenerata (o altro polimero con propriet? emostatiche), di forma cilindrica, con diametro interno di circa 5 mm e diametro esterno di circa 7 mm, di lunghezza pari a 70 mm o superiore, ? chiusa ad una estremit? da una calotta sferica, mentre presenta all?altra estremit? un ispessimento del bordo (diametro esterno circa 9 mm), che consente la ritenzione della connessione con la pistola ad aria. The cannula (8) ? in regenerated oxidized cellulose (or other polymer with haemostatic properties), cylindrical in shape, with an internal diameter of about 5 mm and an external diameter of about 7 mm, a length of 70 mm or more, ? closed at one end? from a spherical cap, while it presents at? the other extremity? a thickening of the edge (outer diameter approx. 9 mm), which allows retention of the connection with the air gun.

La cannula ? preriempita con polvere emostatica e presenta sulla superficie molteplici fori, equispaziati e con densit? di 20-30 fori per cm<2>, ciascuno con diametro di circa 0,1 mm, in ogni caso compatibile con la granulometria della polvere utilizzata, in modo tale che detta polvere possa essere ritenuta in assenza della forza propulsiva dell?aria compressa e fuoriuscire per azione del flusso di aria. The cannula? pre-filled with haemostatic powder and has multiple holes on the surface, equally spaced and with density? of 20-30 holes per cm<2>, each with a diameter of about 0.1 mm, in any case compatible with the granulometry of the powder used, so that said powder can be retained in the absence of the propulsive force of the compressed air and escape by the action of the air flow.

Tra la cannula e il cilindro della pistola ad aria ? posta una griglia metallica (7), solidale con l?estremit? del cilindro della pistola, in grado di trattenere la polvere presente nella cannula e di far passare il flusso d?aria durante l?attivazione del dispositivo. Between the cannula and the air gun cylinder ? placed a metal grid (7), integral with the? end? of the gun cylinder, capable of retaining the powder present in the cannula and allowing the flow of air to pass during the activation of the device.

La cannula ? fissata alla pistola ad aria tramite una semplice fascetta di giunzione (6) con apertura/chiusura a leva, vincolata al cilindro della pistola ad aria. L?apertura della fascetta consente il rilascio facoltativo della cannula nella sede della ferita dopo la dispersione della polvere. The cannula? fixed to the air gun via a simple joint clamp (6) with lever opening/closing, constrained to the cylinder of the air gun. The opening of the strap allows for the optional release of the cannula at the wound site after dispersing the powder.

Il materiale di cui ? composta la cannula (cellulosa ossidata rigenerata) si rigonfia a contatto con i fluidi biologici presenti nella sede della ferita e coadiuva l?arresto dell?emorragia, comprimendo meccanicamente i grandi vasi. The material of which? composed the cannula (regenerated oxidized cellulose) swells in contact with the biological fluids present in the site of the wound and helps stop the bleeding, mechanically compressing the large vessels.

La presente invenzione ? stata descritta in riferimento a forme di realizzazione esemplificative di essa, ma variazioni possono essere apportate senza uscire dal relativo ambito di protezione, che resta solo definito dalle rivendicazioni allegate. The present invention ? been described with reference to exemplary embodiments thereof, but variations can be made without departing from the relative scope of protection, which is only defined by the attached claims.

Claims (3)

RIVENDICAZIONI 1. Un dispositivo medico erogatore di polvere emostatica da usare nel trattamento di ferite da arma da fuoco e da taglio, caratterizzato da una cannula erogatrice cilindrica in materiale biocompatibile, multiforata e preriempita di polvere emostatica.1. A medical device dispensing haemostatic powder to be used in the treatment of gunshot and stab wounds, characterized by a cylindrical dispensing cannula made of biocompatible material, multi-perforated and pre-filled with haemostatic powder. 2. Un dispositivo medico come rivendicato nella rivendicazione 1 in cui la forza propulsiva per la dispersione della polvere emostatica ? fornita da una pistola ad aria.2. A medical device as claimed in claim 1 wherein the propulsive force for dispersing the styptic powder is? supplied by an air pistol. 3. Un dispositivo medico come rivendicato nella rivendicazione 1 in cui la cannula di veicolazione della polvere emostatica pu? essere separata dal resto del dispositivo ed essere lasciata nella sede della ferita. 3. A medical device as claimed in claim 1 in which the cannula for conveying the haemostatic powder can? be separated from the rest of the device and left in the wound site.
IT102020000019642A 2020-08-07 2020-08-07 COMPRESSED AIR HEMOSTATIC POWDER DISPENSER, EQUIPPED WITH BIOCOMPATIBLE CANNULA, TO BE USED IN THE FIRST TREATMENT OF WOUNDS FROM FIREARM OR CUT IT202000019642A1 (en)

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