ES2394783A1 - Blood-extraction negative-pressure regulator system - Google Patents

Blood-extraction negative-pressure regulator system Download PDF

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Publication number
ES2394783A1
ES2394783A1 ES201000941A ES201000941A ES2394783A1 ES 2394783 A1 ES2394783 A1 ES 2394783A1 ES 201000941 A ES201000941 A ES 201000941A ES 201000941 A ES201000941 A ES 201000941A ES 2394783 A1 ES2394783 A1 ES 2394783A1
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Prior art keywords
negative pressure
test tube
end pieces
vein
needle
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ES201000941A
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Spanish (es)
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ES2394783B1 (en
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Manuel FRANCISCO LOPEZ
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Individual
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Priority to ES201000941A priority Critical patent/ES2394783B1/en
Priority to PCT/ES2011/000231 priority patent/WO2012007614A2/en
Publication of ES2394783A1 publication Critical patent/ES2394783A1/en
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Publication of ES2394783B1 publication Critical patent/ES2394783B1/en
Withdrawn - After Issue legal-status Critical Current
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150015—Source of blood
    • A61B5/15003—Source of blood for venous or arterial blood
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150053—Details for enhanced collection of blood or interstitial fluid at the sample site, e.g. by applying compression, heat, vibration, ultrasound, suction or vacuum to tissue; for reduction of pain or discomfort; Skin piercing elements, e.g. blades, needles, lancets or canulas, with adjustable piercing speed
    • A61B5/150061—Means for enhancing collection
    • A61B5/150099—Means for enhancing collection by negative pressure, other than vacuum extraction into a syringe by pulling on the piston rod or into pre-evacuated tubes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150221—Valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150946—Means for varying, regulating, indicating or limiting the speed or time of blood collection
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
    • A61B5/154—Devices using pre-evacuated means
    • 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/141—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor with capillaries for restricting fluid flow

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Dermatology (AREA)
  • Pain & Pain Management (AREA)
  • Fluid Mechanics (AREA)
  • Manufacturing & Machinery (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

Negative-pressure regulator device used to regulate blood-extraction fluid for preventing obstruction and/or rupture of the vein. This device should be placed between the needle inserted into the vein and the negative-pressure tube such that the health professional is able to regulate the necessary extraction fluid in accordance with the user's characteristics. In the event of a user with a narrow vein and/or low blood flow, this negative-pressure regulator system will facilitate extraction without injury to the patient.

Description

SISTEMA REGULADOR DE PRESiÓN NEGATIVA EN LA EXTRACCiÓN DE SANGRE 5 OBJETO DE LA INVENCiÓN REGULATORY SYSTEM OF NEGATIVE PRESSURE IN BLOOD EXTRACTION 5 OBJECT OF THE INVENTION

Uno de los sistemas que más se utiliza en la actualidad en la extracción de sangre es el sistema de tubos de ensayo con presión negativa. Esta presión negativa One of the most commonly used systems in blood collection is the negative pressure test tube system. This negative pressure

10 puede provocar la saturación y/o obstrucción de la vena, con consecuencias negativas para el paciente; como puede ser la imposibilidad de extracción de sangre o rotura de la vena como consecuencia de dicha presión. 10 may cause saturation and / or obstruction of the vein, with negative consequences for the patient; such as the impossibility of blood collection or rupture of the vein as a result of said pressure.

Para evitar esta problemática, que es provocada por la presión negativa continua, To avoid this problem, which is caused by continuous negative pressure,

15 se debe de regular dicha presión de forma que esta no sea tan negativa y que en definitiva se consiga la extracción de sangre, atendiendo especialmente a la salud del paciente. 15 this pressure must be regulated in such a way that it is not so negative and that blood collection is ultimately achieved, paying special attention to the patient's health.

El objeto de esta invención regula dicha presión negativa, a través de un reductor The object of this invention regulates said negative pressure, through a reducer

20 o sistema regulador, que dependiendo de la necesidad del paciente o usuario, el profesional sanitario puede abrir o cerrar dejando pasar el flujo necesario. De esta forma conseguimos dos ventajas importantes; primero que no pase toda la presión negativa directamente a la vena y segundo nos aseguramos de la eliminación de la obstrucción en la vena o en el peor de los casos rotura de la misma. 20 or regulatory system, which depending on the need of the patient or user, the healthcare professional can open or close by allowing the necessary flow. In this way we get two important advantages; First, do not pass all the negative pressure directly to the vein, and second, we ensure the removal of the obstruction in the vein or, in the worst case, rupture of it.

ANTECEDENTE DE LA INVENCiÓN BACKGROUND OF THE INVENTION

Los sistemas de extracción actuales se componen principalmente de jeringa y un sistema de tubos de ensayos de presión negativa. Current extraction systems are mainly composed of syringes and a negative pressure test tube system.

30 El primer dispositivo para la extracción fue la jeringa; dentro de sus múltiples formas, tamaños y capacidades, donde la aplicación de la presión negativa es irregular, debido que dicha presión negativa se realiza a través del propio personal sanitario y se realiza adecuadamente en función de la experiencia o profesionalidad. En el caso del sistema del tubo de ensayo con presión negativa provoca una presión negativa continúa y esta no es regulable. 30 The first device for extraction was the syringe; within its multiple forms, sizes and capacities, where the application of negative pressure is irregular, because said negative pressure is carried out by the health personnel themselves and is properly performed based on experience or professionalism. In the case of the test tube system with negative pressure it causes a continuous negative pressure and this is not adjustable.

5 Si lo que estamos buscando es una extracción de sangre de manera más segura, las ventajas e inconvenientes de ambos sistemas podría ser paliados si en ambos métodos de extracción fuese de una presión continua negativa regulable y/o controlable, que hasta ahora no ha existe. 5 If what we are looking for is a safer blood collection, the advantages and disadvantages of both systems could be mitigated if in both methods of extraction it was a continuous negative pressure adjustable and / or controllable, which until now has not existed .

10 Lo novedoso de esta patente es que el sistema de tubos de ensayos con presión negativa continua se puede controlar con este sistema regulador de tal forma, que la presión negativa sea regulable y/o controlable. 10 The novelty of this patent is that the test tube system with continuous negative pressure can be controlled with this regulator system in such a way that the negative pressure is adjustable and / or controllable.

Descripción de la invención. Description of the invention

15 El sistema regulación de presión negativa en la extracción de sangre, de la invención es adecuado para colocarse entre un dispositivo de tubo de ensayo con presión negativa y una aguja apta para ser introducida en vena, permitiendo una regulación de la presión negativa transmitida por el tubo de ensayo con presión The negative blood pressure regulation system of the invention is suitable to be placed between a test tube device with negative pressure and a needle capable of being introduced into a vein, allowing a regulation of the negative pressure transmitted by the pressure test tube

20 negativa a la vena. 20 vein negative.

Este sistema comprende dos piezas extremas provistas respectivamente de una entrada y de una salida adecuadas para la conexión de una aguja y de un tubo de ensayo con presión negativa. This system comprises two end pieces respectively provided with an inlet and outlet suitable for connecting a needle and a test tube with negative pressure.

25 Dichas piezas extremas están unidas formando un cuerpo cerrado y estanco; en el interior del cual se encuentran dispuestas dos membranas posibilitadas de giro según su eje horizontal, asociadas en el giro a las respectivas piezas extremas y provistas respectivamente de una abertura y de unos orificios dispuestos para 25 Said end pieces are joined forming a closed and sealed body; inside of which two possible rotation membranes are arranged along their horizontal axis, associated in the rotation to the respective end pieces and respectively provided with an opening and holes arranged for

30 enfrentarse en una medida variable en función de la posición de giro relativo de dichas membranas, estableciendo una regulación de la presión negativa generada por el tubo de ensayo con presión negativa y del flujo de entrada de sangre hacia dicho tubo de ensayo. 30 face in a variable measure depending on the relative rotation position of said membranes, establishing a regulation of the negative pressure generated by the test tube with negative pressure and the flow of blood inlet into said test tube.

En una realización las piezas extremas están unidas a través de unos elementos con un elemento intermedio, conformando el cuerpo cerrado mencionado anteriormente. In one embodiment the end pieces are joined through elements with an intermediate element, forming the closed body mentioned above.

5 Las piezas extremas presentan unas pestañas de accionamiento giratorio de dichas piezas extremas y de las membranas asociadas a las mismas, con un giro 5 The end pieces have rotating eyelashes of said end pieces and of the membranes associated therewith, with a twist

de amplitud no mayor a 900. of amplitude not greater than 900.

El sistema de la invención conforma un elemento transparente, fabricado de The system of the invention forms a transparent element, made of

10 policarbonato o del mismo material que las jeringas o de cualquier otro material que se pueda ser construido de forma que guarde todas sus característica de transparencia y estanqueidad. 10 polycarbonate or the same material as the syringes or any other material that can be constructed in such a way as to keep all its transparency and tightness characteristics.

Dicho sistema por ser de la misma sección que el tubo de conexión con la aguja 15 biselada y el tubo de ensayo con presión negativa. Said system for being of the same section as the connecting tube with the beveled needle 15 and the test tube with negative pressure.

Este sistema dispone de unas indicaciones de medidas en función de la apertura de la membrana y la membrana, determinando el flujo de paso. This system has some indications of measurements depending on the opening of the membrane and the membrane, determining the flow of passage.

20 BREVE ENUNCIADO DE LAS FIGURAS 20 BRIEF STATEMENT OF THE FIGURES

Figura 1. Esquema de la disposición del sistema regulador en el sistema de extracción con tubos con presión negativa. Figura 2. Vista en perspectiva del sistema regulador inventado. Figure 1. Scheme of the arrangement of the regulatory system in the system Extraction with negative pressure tubes. Figure 2. Perspective view of the invented regulatory system.

25 Figura 3. Vista en perspectiva y explosiva de los elementos del sistema regulador inventado. 25 Figure 3. Perspective and explosive view of the elements of the invented regulatory system.

REALIZACiÓN PREFERIDA DE LA INVENCiÓN. PREFERRED EMBODIMENT OF THE INVENTION.

30 Como se observa en la figura 1, este sistema regulador de presión negativa, referenciado en su conjunto como (13) en las figuras 1 y 3, debe ser colocado en un sistema de tubos de ensayo con presión negativa, para extracción de sangre y más concretamente en el tubo flexible que conecta el tubo de ensayo (14) con presión negativa, y la aguja (12) biselada que se conecta a la vena. 30 As can be seen in figure 1, this negative pressure regulator system, referenced as a whole as (13) in figures 1 and 3, must be placed in a test tube system with negative pressure, for blood collection and more specifically in the flexible tube that connects the test tube (14) with negative pressure, and the beveled needle (12) that connects to the vein.

Este nuevo sistema regula la presión de la siguiente forma: una vez conectada la vena con la aguja (12) biselada se conecta el tubo de ensayo (14) con presión This new system regulates the pressure as follows: once the vein is connected with the beveled needle (12) the test tube (14) is connected with pressure

5 negativa, pasando toda la presión negativa por la aguja a la vena. Esta presión negativa puede producir una obstrucción por presión negativa y/o en el peor de los casos la rotura de la vena. 5 negative, passing all the negative pressure through the needle to the vein. This negative pressure can cause a negative pressure obstruction and / or in the worst case the vein rupture.

Entre la aguja (12) y el tubo de ensayo (14) con presión negativa se coloca este Between the needle (12) and the test tube (14) with negative pressure is placed this

10 sistema (13) de regulación de presión negativa, que estará conectado a dicha aguja (12) y tubo de ensayo (14) a través de los tubos flexibles (15 y 16). El objeto de este sistema de regulación es evitar que la presión negativa del tubo de ensayo 10 negative pressure regulation system (13), which will be connected to said needle (12) and test tube (14) through the flexible tubes (15 and 16). The purpose of this regulation system is to prevent the negative pressure of the test tube

(14) entre directamente en vena y controlar dicha presión negativa para facilitar la extracción sanguínea. (14) Enter directly into the vein and control said negative pressure to facilitate blood collection.

15 El sistema (13) regulador de la presión negativa deberá de estar en posición cero; es decir, la abertura de la membrana (5) no deberá de coincidir con los agujeros de la membrana (4), no dejando pasar ningún fluido. Según la necesidad del profesional y fisiología del paciente, se procederá a abrir con las pestañas (8 y 9) 15 The negative pressure regulator system (13) must be in zero position; that is, the opening of the membrane (5) should not coincide with the holes in the membrane (4), not allowing any fluid to pass through. According to the need of the professional and physiology of the patient, the tabs will be opened (8 and 9)

20 que deben ser giradas en sentido opuesto para proceder a la apertura del paso definido por las membranas (4 y 5) dejando pasar la presión negativa o fluido necesario. Este giro provoca que la abertura de la membrana (4) coincida con los distintos agujeros de la membrana (5) de forma que la mayor presión negativa coincida con la mayor coincidencia de la abertura de la membrana (4) con los 20 which must be turned in the opposite direction to proceed to the opening of the passage defined by the membranes (4 and 5) allowing the necessary negative pressure or fluid to pass. This rotation causes the opening of the membrane (4) to coincide with the different holes in the membrane (5) so that the greater negative pressure coincides with the greater coincidence of the opening of the membrane (4) with the

25 orificios de la membrana (5). 25 membrane holes (5).

El fluido sanguíneo entra a través de la aguja (12) biselada, pasa por el tubo flexible (15) y por la entrada (10) a la pieza (1) del sistema (13) regulador. Una vez que entra el fluido sanguíneo en el sistema (13) regulador, dicho fluido 30 contacta con la membrana (4) y dependiendo de que la abertura de la membrana Blood fluid enters through the beveled needle (12), passes through the flexible tube (15) and through the inlet (10) to the part (1) of the regulator system (13). Once the blood fluid enters the regulatory system (13), said fluid 30 contacts the membrane (4) and depending on the opening of the membrane

(4) coincida con los orificios de la membrana (5), el fluido puede pasar, o no. Para una mayor o menor presión negativa se procede a la apertura o cierre de la membrana (4). (4) match the membrane holes (5), the fluid can pass, or not. For a greater or lesser negative pressure, the membrane is opened or closed (4).

Una vez que el fluido sanguíneo ha pasado por el/los orificios de la membrana (5), dicho fluido sanguíneo pasa por la pieza extrema (7) y por la salida (11) que conecta con el tubo flexible (16) acoplado con el tubo de ensayo (14) de presión Once the blood fluid has passed through the membrane hole (5), said blood fluid passes through the end piece (7) and through the outlet (11) that connects with the flexible tube (16) coupled with the test tube (14) pressure

5 negativa. 5 negative.

Todo el sistema está diseñado para que sea estanco y pueda unirse gracias al elemento (2, 3, 4, 5, 6) ya las piezas (1 y 7), formando un cuerpo único. The entire system is designed to be tight and can be joined thanks to the element (2, 3, 4, 5, 6) and the pieces (1 and 7), forming a unique body.

Claims (6)

REIVINDICACIONES 1.-. Sistema regulador de presión negativa en la extracción de sangre; destinado a colocarse entre un dispositivo de tubo de ensayo (14) con presión 5 negativa y una aguja (12) apta para ser introducida en vena, caracterizado por que el sistema (13) comprende dos piezas extremas (1,7) provistas respectivamente de una entrada (10) Y de una salida (11) adecuadas para la conexión de la aguja (12) Y del tubo de ensayo (14) con presión negativa; cuyas piezas extremas (1, 7) están unidas formando un cuerpo cerrado y estanco, en el 10 interior del cual se encuentran dispuestas dos membranas (4, 5) posibilitadas de giro según su eje horizontal, asociadas en el giro a las respectivas piezas extremas (1, 7) Y provistas de una abertura y de unos orificios dispuestos para enfrentarse en una medida variable en función de la posición de giro relativo de dichas membranas (4, 5), estableciendo una regulación de la presión negativa one.-. Negative pressure regulator system in blood collection; intended to be placed between a test tube device (14) with negative pressure 5 and a needle (12) suitable for insertion into a vein, characterized in that the system (13) comprises two end pieces (1,7) respectively provided with an inlet (10) and an outlet (11) suitable for connecting the needle (12) Y of the test tube (14) with negative pressure; whose end pieces (1, 7) are joined forming a closed and sealed body, inside which two membranes (4, 5) are made possible to rotate along their horizontal axis, associated in the turn to the respective end pieces (1, 7) And provided with an opening and holes arranged to face each other in a variable measure depending on the relative turning position of said membranes (4, 5), establishing a negative pressure regulation 15 generada por el tubo de ensayo (14) con presión negativa y del flujo de entrada de sangre hacia dicho tubo de ensayo (14). 15 generated by the test tube (14) with negative pressure and the flow of blood inlet into said test tube (14). 2.-Sistema, según la reivindicación 1, caracterizado porque las piezas extremas (1, 7) están unidas a través de unos elementos (2, 6) con un elemento 20 intermedio (3). 2. System according to claim 1, characterized in that the end pieces (1, 7) are connected through elements (2, 6) with an intermediate element (3). 3.-Sistema, 1 Y 2, caracterizado porque las piezas extremas (1, 7) presentan unas pestañas (9, 8) de accionamiento giratorio de dichos piezas extremas (1, 7) Y de las membranas (4,5) asociadas a las mismas, con un giro de 3.-System, 1 and 2, characterized in that the end pieces (1, 7) have rotating flanges (9, 8) of said end pieces (1, 7) and of the membranes (4,5) associated with the same, with a twist of 25 amplitud no mayor a 90°. 25 amplitude not greater than 90 °. 4.-Sistema, según una cualquiera de las reivindicaciones anteriores, caracterizado por ser un elemento transparente, fabricado de policarbonato o del mismo material que las jeringas o de cualquier otro material que se pueda ser 4. System, according to any one of the preceding claims, characterized in that it is a transparent element, made of polycarbonate or the same material as the syringes or any other material that can be 30 construido de forma que guarde todas sus característica de transparencia y estanq ueidad. 30 built in such a way that it keeps all its transparency and sealing characteristics. 5.-Sistema, según una cualquiera de las reivindicaciones anteriores, 5. System, according to any one of the preceding claims,
caracterizado por ser de la misma sección que el tubo (15, 16) de conexión con characterized by being of the same section as the connecting tube (15, 16) with
la aguja biselada (12) Y el tubo de ensayo (14) con presión negativa. the bevel needle (12) and the test tube (14) with negative pressure.
6.6.
Sistema, según una cualquiera de las reivindicaciones anteriores, System according to any one of the preceding claims,
5 5
caracterizado por disponer de unas indicaciones (17) de medidas en función de characterized by having some indications (17) of measurements depending on
la apertura de la membrana (4) y la membrana (5) determinando el flujo de paso. the opening of the membrane (4) and the membrane (5) determining the flow of passage.
10 10
15 fifteen
20 twenty
25 25
30 30
Cj)Cj) ..... ..... LL LL
ES201000941A 2010-07-16 2010-07-16 NEGATIVE PRESSURE REGULATORY SYSTEM FOR BLOOD EXTRACTION Withdrawn - After Issue ES2394783B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES201000941A ES2394783B1 (en) 2010-07-16 2010-07-16 NEGATIVE PRESSURE REGULATORY SYSTEM FOR BLOOD EXTRACTION
PCT/ES2011/000231 WO2012007614A2 (en) 2010-07-16 2011-07-15 Blood-extraction negative-pressure regulator system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201000941A ES2394783B1 (en) 2010-07-16 2010-07-16 NEGATIVE PRESSURE REGULATORY SYSTEM FOR BLOOD EXTRACTION

Publications (2)

Publication Number Publication Date
ES2394783A1 true ES2394783A1 (en) 2013-02-05
ES2394783B1 ES2394783B1 (en) 2013-12-11

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ES201000941A Withdrawn - After Issue ES2394783B1 (en) 2010-07-16 2010-07-16 NEGATIVE PRESSURE REGULATORY SYSTEM FOR BLOOD EXTRACTION

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WO (1) WO2012007614A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105307696B (en) 2013-05-15 2017-12-26 贝克顿·迪金森公司 Manual flow for blood collection is adjusted

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4280509A (en) * 1977-11-11 1981-07-28 Bethkenhagen Juergen Valved blood sampling device
US4409991A (en) * 1980-02-04 1983-10-18 Becton Dickinson And Company Fluid flow control device for use with an evacuated blood collection container
US6355019B1 (en) * 1996-12-18 2002-03-12 Science Incorporated Variable rate infusion apparatus with indicator and adjustable rate control
US20050038387A1 (en) * 2003-08-04 2005-02-17 Kriesel Marshall S. Multichannel fluid delivery device
US20050277883A1 (en) * 2004-05-26 2005-12-15 Kriesel Marshall S Fluid delivery device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1586087A (en) * 1968-12-10 1970-02-06
ES2259897B1 (en) * 2004-12-13 2007-06-16 Jose Castillo Vaquera DEVICE FOR THE TAKING OF BLOOD SAMPLES USING TEST TUBES WITH NEGATIVE PRESSURE THAT INCORPORATES A SAFETY SYSTEM THAT AVOID ACCIDENTAL EXPOSURES TO BIO-HAZARDOUS MATERIAL.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4280509A (en) * 1977-11-11 1981-07-28 Bethkenhagen Juergen Valved blood sampling device
US4409991A (en) * 1980-02-04 1983-10-18 Becton Dickinson And Company Fluid flow control device for use with an evacuated blood collection container
US6355019B1 (en) * 1996-12-18 2002-03-12 Science Incorporated Variable rate infusion apparatus with indicator and adjustable rate control
US20050038387A1 (en) * 2003-08-04 2005-02-17 Kriesel Marshall S. Multichannel fluid delivery device
US20050277883A1 (en) * 2004-05-26 2005-12-15 Kriesel Marshall S Fluid delivery device

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WO2012007614A4 (en) 2012-04-26
ES2394783B1 (en) 2013-12-11
WO2012007614A3 (en) 2012-03-08
WO2012007614A2 (en) 2012-01-19

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