WO2001060431A1 - Safety device for endovenous perfusions - Google Patents
Safety device for endovenous perfusions Download PDFInfo
- Publication number
- WO2001060431A1 WO2001060431A1 PCT/ES2000/000054 ES0000054W WO0160431A1 WO 2001060431 A1 WO2001060431 A1 WO 2001060431A1 ES 0000054 W ES0000054 W ES 0000054W WO 0160431 A1 WO0160431 A1 WO 0160431A1
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- WO
- WIPO (PCT)
- Prior art keywords
- unit
- safety device
- electrical circuit
- occlusive
- intravenous infusions
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Classifications
-
- 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
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
- A61M5/16836—Monitoring, detecting, signalling or eliminating infusion flow anomalies by sensing tissue properties at the infusion site, e.g. for detecting infiltration
Definitions
- the present invention relates to a device that allows for intravenous infusions, the automatic detection of any subcutaneous extravasation of the perfused fluid and the immediate arrest of its contribution to the recipient organism thus avoiding the consequent swelling of the soft tissues near the site of venipuncture and its harmful effects
- This device has two differentiated units that allow the first to detect any extravasation of fluid during an intravenous infusion, which is why it will be called a sensory unit and, the second, called an occlusive unit, the suspension of the fluid supply to be perfused; both units are connected by an electrical circuit that includes the precise conductor and a sufficient power supply.
- the mechanism operates in function of the verification, by means of the sensitive unit, of the beginning of the swelling as a result of an extravasation, and the automatic suspension of the contribution in the occlusive unit, thanks to the electrical impulse transmitted from the first stage of the investigation. previous did not determine the existence of any device similar to the one proposed in the present invention
- the device of the present invention consists, as has been said, of two differentiated units connected to each other by an electrical circuit one arranged so as to be able to detect the onset of the occasional extravasation, or sensory unit, located in the vicinity of the site.
- venopunció ⁇ in contact with the patient's skin and attached to it in a fixed position by any suitable means, and another, which we call an occlusive unit, located in contact with the flexible conduit through which
- SUBSTITUTE SHEET RULE 26 Performs the infusion and whose function is to occlude it at the indicated time.
- the sensory unit incorporates, in addition to the elements attached to the skin of the patient mentioned above and forming a single body with them, a pad of elastic material in which a cavity has been made as a camera on whose lower faces and superior, two sheets of electrically conductive material are properly insulated and separated from each other; both are equipped with the necessary connection means to be integrated as contacts of a switch in the electrical circuit mentioned above
- a rigid housing is arranged in order to protect the unit from inconvenient manipulations.
- the occlusive unit incorporates a mechanism, whether electromechanical, hydraulic, pneumatic or of any kind suitable for its purpose, capable of occluding, by strangulation thereof, the flexible conduit through which the perfusion to be controlled is produced.
- Figure 1 represents the general arrangement of the device once applied to the arm of a patient, corresponding respectively:
- Figures 2 and 3 represent the sensory unit (1) applied with an adhesive strip on the patient's skin and in an open and closed position respectively, the numbering corresponding to 2 Electrical circuit
- FIG. 4 and 5 represent the occlusive unit (4), which incorporates as an occlusive mechanism for this example an electromagnet provided with a strangulated stirrup ⁇ arranged on the mobile element thereof in said figures the unit is represented cited in open and closed position respectively, being 2 electrical circuit
Abstract
The invention concerns a safety device for endovenous perfusions, which makes it possible to detect and stop any extravasation during endovenous perfusion. The safety device includes a sensitive unit (1) and an occlusive unit (4) that are joined together by an electrical circuit (2). The sensitive unit (1) detects the beginning of swelling as a result of extravasation and automatically stops supply in the occlusive unit (4) by means of an electrical impulse transmitted from the former (2) to the latter (4). The sensitive unit comprises the following: elements for fixing on the skin of the patient; a hollow pad made of elastic material with inner plates consisting of conductive material and insulated from one another, both plates being provided with the necessary continuity with the electrical circuit (2) and being the contacts of a switch of said circuit. The occlusive unit (4) includes a mechanism that is capable of occluding by strangulation the flexible conduit (5) by means of which perfusion to be controlled is carried out.
Description
UN DISPOSITIVO DE SEGURIDAD PARA PERFUSIONES A SAFETY DEVICE FOR PERFUSIONS
ENDOVENOSASENDOVENOSAS
La presente invención se refiere a un dispositivo que permite en las perfusiones endovenosas, la detección automática de cualquier extravasación subcutánea del fluido perfundido y la inmediata detención de aporte del mismo hacia el organismo receptor evitando así la consecuente tumefacción de las partes blandas próximas al lugar de venopunción y sus efectos perjudicialesThe present invention relates to a device that allows for intravenous infusions, the automatic detection of any subcutaneous extravasation of the perfused fluid and the immediate arrest of its contribution to the recipient organism thus avoiding the consequent swelling of the soft tissues near the site of venipuncture and its harmful effects
Este dispositivo comporta dos unidades diferenciadas que permiten, la primera la detección de cualquier extravasación de fluido durante una perfusión endovenosa, por lo que se denominará unidad sensitiva y, la segunda, llamada unidad oclusiva, la suspensión del suministro del fluido a perfundir; ambas unidades se hallan unidas por un circuito eléctrico que incluye el conductor preciso y una fuente de alimentación suficiente. El mecanismo opera en función a la constatación, por medio de la unidad sensitiva, del inicio de la tumefacción a consecuencia de una extravasación, y la suspensión automática del aporte en la unidad oclusiva, gracias ai impulso eléctrico transmitido desde la primera nasta ésta La investigación previa no determinó la existencia de ningún dispositivo similar al propuesto en la presente invenciónThis device has two differentiated units that allow the first to detect any extravasation of fluid during an intravenous infusion, which is why it will be called a sensory unit and, the second, called an occlusive unit, the suspension of the fluid supply to be perfused; both units are connected by an electrical circuit that includes the precise conductor and a sufficient power supply. The mechanism operates in function of the verification, by means of the sensitive unit, of the beginning of the swelling as a result of an extravasation, and the automatic suspension of the contribution in the occlusive unit, thanks to the electrical impulse transmitted from the first stage of the investigation. previous did not determine the existence of any device similar to the one proposed in the present invention
El dispositivo de la presente invención consta, como se ha dicho, de dos unidades diferenciadas conectadas entre sí por un circuito eléctπco una dispuesta de modo que sea capaz de detectar el inicio de la ocasional extravasación, o unidad sensitiva, situada en las proximidades del lugar de venopuncióπ, en contacto con la piel del paciente y sujeta a ésta en una posición fija por cualquier medio idóneo, y otra, que llamamos unidad oclusiva, situada en contacto con el conducto flexible a través del cual seThe device of the present invention consists, as has been said, of two differentiated units connected to each other by an electrical circuit one arranged so as to be able to detect the onset of the occasional extravasation, or sensory unit, located in the vicinity of the site. venopuncióπ, in contact with the patient's skin and attached to it in a fixed position by any suitable means, and another, which we call an occlusive unit, located in contact with the flexible conduit through which
HOJA DE SUSTITUCIÓN REGLA 26
realiza la perfusión y cuya función es la de ocluirlo en el momento indicado.SUBSTITUTE SHEET RULE 26 Performs the infusion and whose function is to occlude it at the indicated time.
La unidad sensitiva incorpora a su vez, aparte de los elementos de sujeción a la piel del paciente antes citados y formando un sólo cuerpo con éstos, una almohadilla de material elástico en cuyo interior se ha practicado una oquedad a modo de cámara sobre cuyas caras inferior y superior se disponen sendas láminas de material conductor de corriente eléctrica debidamente aisladas y separadas una de otra; ambas están dotadas de los medios de conexión necesarios para integrarse como contactos de un interruptor en el circuito eléctrico arriba mencionadoThe sensory unit incorporates, in addition to the elements attached to the skin of the patient mentioned above and forming a single body with them, a pad of elastic material in which a cavity has been made as a camera on whose lower faces and superior, two sheets of electrically conductive material are properly insulated and separated from each other; both are equipped with the necessary connection means to be integrated as contacts of a switch in the electrical circuit mentioned above
Sobre la parte superior de la citada almohadilla, y externamente, se dispone una carcasa rígida a fin de proteger la unidad de manipulaciones inconvenientes.On the upper part of said pad, and externally, a rigid housing is arranged in order to protect the unit from inconvenient manipulations.
Por otra parte la unidad oclusiva incorpora un mecanismo, bien sea electromecánico, hidráulico, neumático o de cualquier naturaleza apta para su cometido, capaz de ocluir, por estrangulación del mismo el conducto flexible a través del cual se produce la perfusión que se desea controlar.On the other hand, the occlusive unit incorporates a mechanism, whether electromechanical, hydraulic, pneumatic or of any kind suitable for its purpose, capable of occluding, by strangulation thereof, the flexible conduit through which the perfusion to be controlled is produced.
El alcance de la presente invención se comprenderá mejor con la descripción siguiente de un ejemplo de práctico de realización la cual se desarrolla a partir de los dibujos incluidos en el plano anexo, en los que:The scope of the present invention will be better understood with the following description of an exemplary embodiment which is developed from the drawings included in the attached drawing, in which:
La figura 1 representa la disposición general del dispositivo una vez aplicado al brazo de un paciente, correspondiendo respectivamente:Figure 1 represents the general arrangement of the device once applied to the arm of a patient, corresponding respectively:
1. A la unidad sensitiva.1. To the sensitive unit.
2. Al circuito eléctrico. 3. A la fuente de alimentación.2. To the electrical circuit. 3. To the power supply.
4. A la unidad de oclusión.4. To the occlusion unit.
5. Al conducto flexible por el cual se realiza la perfusión.5. To the flexible conduit through which perfusion is performed.
6. A la fuente de suministro de suero fisiológico.
7 Al catéter aplicado al vaso en cuestión6. To the source of physiological serum supply. 7 To the catheter applied to the vessel in question
Las figuras 2 y 3 representan la unidad sensitiva (1) aplicada con una tira adhesiva sobre la piel del paciente y en posición abierto y cerrado respectivamente correspondiendo la numeración a 2 Circuito eléctricoFigures 2 and 3 represent the sensory unit (1) applied with an adhesive strip on the patient's skin and in an open and closed position respectively, the numbering corresponding to 2 Electrical circuit
7 Catéter7 Catheter
10 Contactos interruptores10 switch contacts
11 Sujeción adhesiva a la piel del paciente11 Adhesive attachment to the patient's skin
12 Vena 13 Tejido orgánico12 Vein 13 Organic fabric
13' Tejido tumefacto13 'Tumefact fabric
14 Almohadilla de material elástico14 Elastic material pad
15 carcasa protectora A oquedad Las figuras 4 y 5 representan la unidad oclusiva (4), la cual incorpora como mecanismo oclusivo para este ejemplo un electroimán dotado de un estribo estrangulado^ dispuesto éste sobre el elemento móvil de aquél en dichas figuras se representa la unidad citada en posición abierto y cerrado respectivamente, siendo 2 Circuito eléctrico15 protective housing A hollow Figures 4 and 5 represent the occlusive unit (4), which incorporates as an occlusive mechanism for this example an electromagnet provided with a strangulated stirrup ^ arranged on the mobile element thereof in said figures the unit is represented cited in open and closed position respectively, being 2 electrical circuit
4 Unidad oclusiva4 Occlusive unit
5 Conducto flexible por el cual se realiza la perfusión5 Flexible conduit through which perfusion is performed
20 Inductor del electroimán20 Electromagnet Inductor
21 Inducido del electroimán 22 Estribo estrangulador21 Electromagnet Induction 22 Strangler Stirrup
Supongamos asi un paciente al cual se le reaiiza una punción intravenosa con un catéter (7), comunicado mediante un conducto flexible (5) a una fuente de suministro (6), para la realización de una perfusión endovenosa de suero fisiológico, como se comprueba en las figuras adjuntas, al sujeto
se le aplica en un lugar próximo a la venopuncióπ y en contacto directo con la piel, mediante una tira adhesiva (11), la unidad sensitiva (1 ) que está conectada, y formando un circuito eléctrico con la unidad oclusiva (4) y la fuente de alimentación (3) Por otra parte, el conducto flexible (5) se aloja de manera apropiada en el iugar correspondiente de la unidad oclusiva para su eventual estrangulaciónLet us suppose a patient who undergoes an intravenous puncture with a catheter (7), communicated through a flexible conduit (5) to a source of supply (6), to perform an intravenous infusion of physiological serum, as verified in the attached figures, to the subject It is applied in a place close to the venipuncture and in direct contact with the skin, by means of an adhesive strip (11), the sensitive unit (1) that is connected, and forming an electrical circuit with the occlusive unit (4) and the power supply (3) On the other hand, the flexible conduit (5) is properly housed in the corresponding place of the occlusive unit for eventual throttling.
Como puede verse en la figura 2, una vez cumplimentado lo anterior e iniciado el proceso citado, el catéter que atraviesa la pared de la vena afectada deja circular a su través el flujo seroso hacia el interior de ésta sin obstrucción alguna, permaneciendo sin cambios el tejido orgánico circundante, la almohadilla de material elástico (13) en su posición original y los contactos interruptores (10) en posición abierto, por lo tanto, también lo está el circuito eléctrico (2) y en consecuencia la unidad oclusiva (4) permanece inactiva, permitiendo el desarrollo del proceso perfusivo con normalidadAs can be seen in figure 2, once the aforementioned has been completed and the aforementioned process has begun, the catheter that crosses the wall of the affected vein allows the serous flow to flow through it without any obstruction, remaining unchanged surrounding organic tissue, the pad of elastic material (13) in its original position and the switch contacts (10) in the open position, therefore, so is the electrical circuit (2) and consequently the occlusive unit (4) remains inactive, allowing the development of the perfusion process normally
En el caso, reflejado en la figura 3, de que el catéter (7) pierda por cualquier causa la vía a la que se ha realizado la punción, se activa el dispositivo, pues el vertido extravascuiar del fluido aportado a través de aquél acarrea el inicio de la tumefacción del tejido afectado (14'), lo que supone la hinchazón de dicha zona Tal tumefacción comprime la almohadilla elástica (14) contra la carcasa de protección (15), que se halla en una posición fija gracias a la tira de sujeción (11), aplastándola y forzando a los contactos interruptores (10) a desplazarse hacia una posición de contacto en la que se cierra el circuito eléctrico (2) y se activa, en consecuencia, la unidad oclusiva (4) En ésta, una vez cerrado el circuito como se ha dicho, el paso de la corriente eléctrica por el inductor determina el desplazamiento del inducido hacia el seno del primero, siendo éste movimiento el que permite la oclusión del conducto flexible (5) por estrangulación del mismo entre la pared externa de dicha unidad (4) y el
estribo (22). La realización de la operación anterior supone la detención inmediata del aporte de fluido a la zona afectada por la tumefación incipiente, evitándose así las consecuencias perniciosas y molestas derivadas del incremento de la extravasación a causa de un aoorte de fluido más prolongado.In the case, reflected in Figure 3, that the catheter (7) for any reason loses the path to which the puncture has been performed, the device is activated, since the extravascuiar discharge of the fluid provided through it carries the beginning of the swelling of the affected tissue (14 '), which implies swelling of said area. Such swelling compresses the elastic pad (14) against the protective housing (15), which is in a fixed position thanks to the strip of clamping (11), crushing it and forcing the switch contacts (10) to move towards a contact position in which the electrical circuit (2) closes and, consequently, the occlusive unit (4) is activated in it, a Once the circuit has been closed as stated, the passage of the electric current through the inductor determines the displacement of the armature into the first, being this movement the one that allows the occlusion of the flexible conduit (5) by throttling it between the external wall of said unit (4) and the stirrup (22). The performance of the previous operation involves the immediate arrest of the fluid supply to the area affected by the incipient swelling, thus avoiding the pernicious and annoying consequences arising from the increase in extravasation due to a longer fluid aorta.
No se considera necesario hacer más extensa esta descripción para que cualquier experto en la materia comprenda el alcance de la invención y las ventajas que de la misma se derivan.It is not considered necessary to make this description more extensive so that any person skilled in the art understands the scope of the invention and the advantages derived therefrom.
Los términos en que se ha redactado esta memoria deberán ser tomados siempre en el sentido amplio y no limitativo.The terms in which this report has been written must always be taken in the broad and non-limiting sense.
Los materiales, forma y disposición de los elementos serán susceptibles de variación siempre y cuando ello no suponga una variación de las características esenciales del invento, que se reivindica a continuación:The materials, shape and arrangement of the elements will be subject to variation as long as this does not imply a variation of the essential characteristics of the invention, which is claimed below:
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SUBSTITUTE SHEET RULE 26
Claims
REIVINDICACIONES
1 Un dispositivo de seguridad para perfusiones endovenosas que se caracteriza por incorporar dos unidades diferenciadas, denominadas respectivamente unidad sensitiva (1 ) y unidad oclusiva (4), destinadas a detectar y detener respectivamente la eventual extravasación del fluido perfundido1 A safety device for intravenous infusions characterized by incorporating two differentiated units, respectively called the sensory unit (1) and occlusive unit (4), designed to detect and stop respectively the eventual extravasation of the perfused fluid
2 Un dispositivo de seguridad para perfusiones endovenosas, según la reivindicación anterior, que se caracteriza porque las unidades sensitiva (1 ) y oclusiva (4) referidas en la anterior reivindicación, se integran en un circuito eléctrico (2) dotado de una fuente de alimentación (3).2 A safety device for intravenous infusions, according to the preceding claim, characterized in that the sensory (1) and occlusive units (4) referred to in the preceding claim are integrated into an electrical circuit (2) provided with a power supply (3).
3 Un dispositivo de seguridad para perfusiones endovenosas, según las reivindicaciones anteriores, que se caracteriza porque la unidad sensitiva (1) comporta una almohadilla de material elástico (14), protegida externamente por una carcasa (15) abierta en su base inferior, en cuyo interior se ha practicado una oquedad (A) y en la que se alojan, debidamente aisladas una de otra y sobre las superficies inferior y superior respectivamente de la citada oquedad, dos láminas de material conductor (10) de corriente eléctrica, dotadas ambas de los medios necesarios de continuidad con el citado circuito eléctrico (2) y que constituyen ios contactos de un interruptor del mismo.A safety device for intravenous infusions, according to the preceding claims, characterized in that the sensory unit (1) comprises a pad of elastic material (14), protected externally by an open housing (15) in its lower base, in which a hollow (A) has been made inside and in which, properly insulated from each other and on the lower and upper surfaces respectively of said recess, two sheets of conductive material (10) of electric current are housed, both provided with necessary means of continuity with said electrical circuit (2) and which constitute the contacts of a switch thereof.
4 Un dispositivo de seguridad para perfusiones endovenosas, según las reivindicaciones anteriores, que se caracteriza porque la unidad sensitiva (1) incorpora los medios de sujeción adecuados (11) para que sea dispuesta en las proximidades de la zona de venopunción, de modo que la almohadilla (14) esté en contacto permanente con la piel del sujeto receptor de la perfusión durante el desarrollo de la misma y de manera que las láminas conductoras (10) queden en la posición adecuada para su funcionamiento correcto.
5 Un dispositivo de seαuπdad Dará perfusiones endovenosas seαun las reivindicaciones anteriores que se caracteriza porque la unidad sensitiva (1 ) al estar dispuesta de la forma especificada en la anterior reivindicación es capaz de producir el cierre del circuito eléctrico (2) al darse el caso de una eventual extravasación del líquido perfundido, ya que esta produce una tumefacción incipiente del teμdo blando del sujeto receptor situado en las proximidades del citado dispositivo y genera una hinchazón de tales partes que, al comprimir la almohadilla (14) contra el medio de sujeción (11), ambos referidos en las reivindicaciones tres y cuatro respectivamente, y desplazando en el interior de ésta las láminas conductoras (10), citadas en la misma reivindicación, hacia una posición de contacto, lo que acarrea el cierre del circuito arriba citado y la circulación de corriente por el mismo4 A safety device for intravenous infusions, according to the preceding claims, characterized in that the sensory unit (1) incorporates the appropriate fastening means (11) so that it is arranged in the vicinity of the venipuncture area, so that the pad (14) is in permanent contact with the skin of the perfusion receptor subject during its development and so that the conductive sheets (10) are in the proper position for proper operation. A safety device will give intravenous infusions according to the preceding claims, characterized in that the sensory unit (1) being arranged in the manner specified in the previous claim is capable of causing the closure of the electrical circuit (2) when the case arises. an eventual extravasation of the perfused liquid, since this produces an incipient swelling of the soft tissue of the receiving subject located in the vicinity of said device and generates a swelling of such parts that, when compressing the pad (14) against the holding means (11 ), both referred to in claims three and four respectively, and moving inside the conductive sheets (10), mentioned in the same claim, towards a contact position, which leads to the closure of the circuit mentioned above and the circulation of current by the same
6 Un dispositivo de segundad para perfusiones endovenosas según las reivindicaciones anteriores, que se caracteriza porque la unidad oclusiva (4) comporta un mecanismo (21) (22), bien sea de naturaleza electromecánica hidráulica, neumática o de cualquier naturaleza idónea para ejecutar su cometido, conectado al circuito eléctrico (2), que dispone de los elementos necesarios para alojar el conducto flexible (5) por el cual se realiza la perfusión, de forma que una vez alojado éste convenientemente en el mismo, es capaz, a causa del cierre del circuito eléctrico (2) por efecto de la activación de la unidad sensitiva (1) como se detalla en la reivindicación anterior, de ocluir tal conducto (5) impidiendo la circulación de fluido a través del mismo, evitando asi un mayor aporte de líquido a la zona tumefacta y las consecuencias derivadas de elloA safety device for intravenous infusions according to the preceding claims, characterized in that the occlusive unit (4) involves a mechanism (21) (22), either of electromechanical hydraulic, pneumatic nature or of any nature suitable for carrying out its task. , connected to the electrical circuit (2), which has the necessary elements to house the flexible conduit (5) through which the perfusion is performed, so that once it is conveniently housed therein, it is capable, due to the closure of the electrical circuit (2) due to the activation of the sensing unit (1) as detailed in the previous claim, to occlude such conduit (5) preventing the circulation of fluid through it, thus preventing a greater supply of liquid to the swollen zone and the consequences derived from it
HOJA DE SUSTITUCIÓN (REGLA 26)
SUBSTITUTE SHEET (RULE 26)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/ES2000/000054 WO2001060431A1 (en) | 2000-02-15 | 2000-02-15 | Safety device for endovenous perfusions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/ES2000/000054 WO2001060431A1 (en) | 2000-02-15 | 2000-02-15 | Safety device for endovenous perfusions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001060431A1 true WO2001060431A1 (en) | 2001-08-23 |
Family
ID=8244214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES2000/000054 WO2001060431A1 (en) | 2000-02-15 | 2000-02-15 | Safety device for endovenous perfusions |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2001060431A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007124298A2 (en) | 2006-04-19 | 2007-11-01 | Acist Medical Systems, Inc. | Extravasation detection device |
| WO2009042624A2 (en) * | 2007-09-24 | 2009-04-02 | Mallinckrodt Inc. | Systems and methods for detecting extravasation by tissue firmness |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2374917A1 (en) * | 1976-12-24 | 1978-07-21 | Shaw Robert | Medical infusion leakage detector - using heater or cooler when patient's skin temp. is close to infusion temp. |
| US5190059A (en) * | 1989-11-16 | 1993-03-02 | Fabian Carl E | Surgical implement detector utilizing a powered marker |
| DE19506018A1 (en) * | 1995-02-22 | 1996-08-29 | Bergstrase Medizintechnik Gmbh | Position monitoring system for vessel feed, primarily for very different types of medical catheter, |
| US5578003A (en) * | 1994-09-12 | 1996-11-26 | Ludwig Borger | Safety device for a blood-, wound secretion-or infusion supplying conduit, and blood-wound secretion- or infusion supply system provided therewith |
| FR2737124A1 (en) * | 1995-07-24 | 1997-01-31 | Hospal Ind | Device for detecting the accidental removal of a tube from pipe or vein in patient - uses sensor to initiate alarm when there is spread of liquid on surface of patient's body near liquid transfusion insertion point |
-
2000
- 2000-02-15 WO PCT/ES2000/000054 patent/WO2001060431A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2374917A1 (en) * | 1976-12-24 | 1978-07-21 | Shaw Robert | Medical infusion leakage detector - using heater or cooler when patient's skin temp. is close to infusion temp. |
| US5190059A (en) * | 1989-11-16 | 1993-03-02 | Fabian Carl E | Surgical implement detector utilizing a powered marker |
| US5578003A (en) * | 1994-09-12 | 1996-11-26 | Ludwig Borger | Safety device for a blood-, wound secretion-or infusion supplying conduit, and blood-wound secretion- or infusion supply system provided therewith |
| DE19506018A1 (en) * | 1995-02-22 | 1996-08-29 | Bergstrase Medizintechnik Gmbh | Position monitoring system for vessel feed, primarily for very different types of medical catheter, |
| FR2737124A1 (en) * | 1995-07-24 | 1997-01-31 | Hospal Ind | Device for detecting the accidental removal of a tube from pipe or vein in patient - uses sensor to initiate alarm when there is spread of liquid on surface of patient's body near liquid transfusion insertion point |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007124298A2 (en) | 2006-04-19 | 2007-11-01 | Acist Medical Systems, Inc. | Extravasation detection device |
| EP2012670A2 (en) * | 2006-04-19 | 2009-01-14 | ACIST Medical Systems, Inc. | Extravasation detection device |
| EP2012670A4 (en) * | 2006-04-19 | 2010-04-28 | Acist Medical Sys Inc | Extravasation detection device |
| US8057406B2 (en) | 2006-04-19 | 2011-11-15 | Acist Medical Systems, Inc. | Extravasation detection device |
| WO2009042624A2 (en) * | 2007-09-24 | 2009-04-02 | Mallinckrodt Inc. | Systems and methods for detecting extravasation by tissue firmness |
| WO2009042624A3 (en) * | 2007-09-24 | 2009-05-28 | Mallinckrodt Inc | Systems and methods for detecting extravasation by tissue firmness |
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