Source: http://www.google.com/patents/US20060149149?ie=ISO-8859-1
Timestamp: 2015-05-04 10:18:47
Document Index: 525977190

Matched Legal Cases: ['art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 3']

Patent US20060149149 - Medical sensor - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsThe present invention relates to a medical sensor (1) for measuring pulse, blood, tissue and/or skin parameters by means of electromagnetic waves in the transmission or reflection method. The sensor (1) has a strip- and/or band-shaped carrier part (2) which carries at least one transmitter element and...http://www.google.com/patents/US20060149149?utm_source=gb-gplus-sharePatent US20060149149 - Medical sensorAdvanced Patent SearchPublication numberUS20060149149 A1Publication typeApplicationApplication numberUS 10/544,364PCT numberPCT/IB2004/000242Publication dateJul 6, 2006Filing dateFeb 2, 2004Priority dateFeb 5, 2003Also published asCN1744851A, CN1744851B, DE602004018749D1, EP1592341A1, EP1592341B1, US7379764, WO2004069047A1Publication number10544364, 544364, PCT/2004/242, PCT/IB/2004/000242, PCT/IB/2004/00242, PCT/IB/4/000242, PCT/IB/4/00242, PCT/IB2004/000242, PCT/IB2004/00242, PCT/IB2004000242, PCT/IB200400242, PCT/IB4/000242, PCT/IB4/00242, PCT/IB4000242, PCT/IB400242, US 2006/0149149 A1, US 2006/149149 A1, US 20060149149 A1, US 20060149149A1, US 2006149149 A1, US 2006149149A1, US-A1-20060149149, US-A1-2006149149, US2006/0149149A1, US2006/149149A1, US20060149149 A1, US20060149149A1, US2006149149 A1, US2006149149A1InventorsAlfons SchmidOriginal AssigneeAlfons SchmidExport CitationBiBTeX, EndNote, RefManReferenced by (5), Classifications (10), Legal Events (2) External Links: USPTO, USPTO Assignment, EspacenetMedical sensor
US 20060149149 A1Abstract
The present invention relates to a medical sensor (1) for measuring pulse, blood, tissue and/or skin parameters by means of electromagnetic waves in the transmission or reflection method. The sensor (1) has a strip- and/or band-shaped carrier part (2) which carries at least one transmitter element and at least one receiver element. In order that the sensor (1) can be used on a patient more than once and is sufficiently secured against relative movements with respect to a body part, the carrier part (2), on an inner side (9) provided to make contact with the body part, has at least two adhesive bodies (25, 26) which are spaced apart from one another and during measurement adhere to the body part, while the rest of the inner side (9) is designed to be essentially non-adhesive with respect to the body part. Images(3) Claims(19)
As shown in FIG. 1, a medical sensor 1 according to the invention comprises a carrier part 2 which is designed in the shape of a strip or band. The sensor 1 is used to measure pulse, blood, tissue or skin parameters, where the sensor 1 operates using electromagnetic waves and in this case uses a transmission or reflection method. For this purpose, the carrier part 2 carries a transmitter unit 3, which comprises at least one transmitter element. The transmitter unit 3 usually comprises an LED that emits red light and an LED that emits infrared light. Furthermore, the carrier part 2 carries a receiver unit 4, which comprises at least one receiver element, preferably a photodiode. The transmitter unit 3 or its transmitter element and the receiver unit 4 or its receiver element are connected to a plug 6 via cables 5, the cables 5 being gathered together in a composite cable 7 outside the carrier part 2. The carrier part 2 is constructed in a multilayer fashion. In order to be able to better illustrate the individual layers, these are shown on an overproportionally enlarged scale in the direction of their thickness in FIGS. 1 and 2. As shown in FIG. 1, the carrier part 2 comprises an inner half 2 a and an outer half 2 b, which may be produced independently of one another. The inner half 2 a in this case consists of a first textile layer 8 which forms an inner side 9 of the carrier part 2. This inner side 9, during use of the sensor 1, is applied to a body part of a patient, in particular to a finger, a toe or, in small patients, a foot or a hand. The first textile layer 8 consists, for example, of velour and is designed such that it essentially does not adhere to the body part, that is to say to human skin and hairs. On the side facing away from the inner side 9, the first textile layer 8 is connected, in particular adhesively or thermally bonded, to a first layer of foamed material 10. The first layer of foamed material 10 consists, for example, of PE and is elastically compressible. In the embodiment shown here, a first adhesive film 11 is attached, in particular adhesively or thermally bonded, to the first layer of foamed material 10 on a side facing away from the inner side 9. The first adhesive film 11 has an adhesive coating on its side facing away from the inner side 9. Once the inner half 2 a has been finished, this adhesive coating is covered with a peelable protective film, which is only peeled off for the purpose of assembling the sensor 1. In FIG. 1, this protective film has already been peeled off. The inner half 2 a and its components, that is to say the first textile layer 8, the first layer of foamed material 10 and�where present�the first adhesive film 11, comprise a transmitter opening 12 and a receiver opening 13. The transmitter opening 12 and the receiver opening 13 are in each case arranged approximately on a longitudinal center line 14 of the carrier part 2 and are spaced apart from one another in the longitudinal direction of the carrier part 2. The outer half 2 b consists of a similar multilayer construction and comprises an outer side 15 of the carrier part 2, said outer side 15 facing away from the inner side 9 and being formed by a second textile layer 16. The second textile layer 16 may also consist essentially of a skin-friendly material, such as velour for example. On its side facing away from the outer side 15, the second textile layer 16 has a second layer of foamed material 17, which likewise consists of an elastically compressible foamed material, for example PE. Optionally, the second layer of foamed material 17 may have, on its side facing away from the outer side 15, a second adhesive film 18 which on its side facing away from the outer side 15 has an adhesive coating. The connections between the individual layers may also in this case be realized by adhesively bonded connections or thermally bonded connections. After production of the outer half 2 b, the adhesive coating of the adhesive film 18 is expediently covered with an appropriate protective film which can be peeled off for assembly purposes, as in FIG. 1. For assembly of the sensor 1, the transmitter unit 3, the receiver unit 4 and the cables 5 and 7 are then positioned. In order to obtain fixing of the composite cable 7 to the carrier part 2 with good tensile strength, a retaining plate 19 may be provided which is fitted to the outer part 2 b and is fixedly attached to the end section 21 of the composite cable 7 remote from the plug 6. Adhesively bonded connections are also preferred here for attachment purposes. If the second adhesive film 18 is provided, the retaining plate 19 can simply be placed on the second adhesive film 18 at the appropriate location. The retaining plate 19 may also be provided with an adhesive layer which makes it possible to fix the end section 21 of the composite cable 7 to the retaining plate 19. The retaining plate 19 expediently has two tabs 28 which fold around the end section 21 for better fixing. In order to further improve the fixing of the cables 5 and of the composite cable 7 to the carrier part 2, a projection 20 which sticks out to the side is formed on the carrier part 2, which projection 20 in this case likewise consists of an inner half 20 a and an outer half 20 b. The projection halves 20 a and 20 b are integrally formed on the carrier inner half 2 a and on the carrier outer half 2 b or on the components thereof. During assembly of the halves 2 a, 2 b of the carrier part 2, the end section 21 of the composite cable 7 with the tabs 28 of the retaining plate 19 is arranged between the halves 20 a, 20 b of the projection 20 and there adhesively and/or thermally bonded to the carrier part 2. As a result, effective strain relief of the optoelectronic components 3, 4 is achieved. In the preferred embodiment shown here, the carrier part 2 is moreover equipped with a Velcro fastening 22, which has a hook element 23 having hooks and a loop element 24 having loops. The loop element 24 is in this case formed by an appropriate configuration of the outer side 15 of the carrier part 2, that is to say that an upper side of the second textile layer 16, which forms the outer side 15 of the carrier part 2, serves as a loop element 24 for the Velcro fastening 22. Such a Velcro fastening 22 may also be referred to as a hook and loop fastening. In the embodiment shown here, the hook element 23 is designed as a tongue which upon assembly of the sensor 1 is arranged at an end section between the halves 2 a, 2 b of the carrier part 2. After assembly of the sensor 1, the hook element 23 is thus arranged at one end between the layers of foamed material 10, 17 or between the adhesive films 11, 18. As shown in FIG. 2, after assembly of the sensor 1, the hook element 22 projects in the longitudinal direction of the carrier part 2, beyond the textile layers 8, 16 thereof. As shown in FIGS. 1 and 2, the sensor 1 according to the invention, on the inner side 9 of the carrier part 2, has at least two adhesive bodies 25, 26. In the preferred embodiment shown here, precisely two such adhesive bodies are provided, and these will be referred to below as the first adhesive body 25 and the second adhesive body 26. The adhesive bodies 25, 26 are spaced apart from one another and thereby form two locally defined adhesive zones within the inner side 9 of the carrier part 2, which inner side 9 is designed to be non-adhesive per se. The adhesive bodies 25, 26 are in this case dimensioned and positioned such that in the assembled state the first adhesive body 25 covers the transmitter unit 3 while the second adhesive body 26 covers the receiver unit 4. In order not to impair the operability of the optoelectronic components of the transmitter unit 3 and of the receiver unit 4, the adhesive bodies 25, 26 are made of a material which is permeable to the electromagnetic waves that are emitted by the transmitter elements of the transmitter unit 3. The adhesive bodies 25, 26 consist, for example, of a gel-like adhesive. This adhesive may be designed, for example, such that it is not completely hardened when it forms the adhesive bodies 25, 26 and such that it also does not harden during the entire predetermined service life of the sensor 1 provided that the sensor 1 is not exposed to unacceptable environmental conditions. In this way, the sensor 1 can be used on the same patient almost as often as desired. This patient-related reusability of the sensor 1 is aided by the Velcro fastening 22, which can likewise be opened and closed almost as often as desired. During application of the sensor 1, the carrier part 2 thereof is wound around the respective body part of the patient. If the sensor 1 operates in accordance with the transmission method, the carrier part 2 is attached to the body part such that transmitter unit 3 and receiver unit 4 lie opposite one another on opposite sides of the body part. The adhesive bodies 25, 26 then come to rest on the body part and by virtue of their adhesion at the measurement location produce adequate fixing of the carrier part 2 to the body part. In order to be able to carry out optimal measurement of the pulse rate, it is desired that the carrier part 2 bears against the body part with a slight pressure. In the case of the sensor 1 according to the invention, the carrier part 2 is designed to be elastically compressible in the direction of its thickness. This is achieved in this case by the correspondingly compressible layers of foamed material 10, 17. The compressibility of the carrier part 2 is designed such that the carrier part 2, during application to the respective body part, can be compressed to the extent that resulting restoring forces press the inner side 9 of the carrier part 2 against the body part. Upon winding around the respective body part, a prestressed bearing of the carrier part 2 on the body part is thus generated, which prestressing can be fixed with the aid of the Velcro fastening 22. In order to be able to wind the multilayer carrier part 2 in a particularly simple manner such that transmitter element 3 and receiver element 4 can be positioned on opposite sides of the body part, in accordance with the embodiment shown here the carrier part 2 may have lateral notches 27 that lie opposite one another and are arranged in the center, with respect to the longitudinal direction of the carrier part 2, between transmitter element 3 and receiver element 4. The notches 27 are V-shaped and run inward to form a point. The notches 27 may be formed during production of the halves 2 a, 2 b of the carrier part 2, so that the carrier part halves 2 a, 2 b or their layers 8, 10, 11 and 16, 17, 18 are accordingly provided with the notches 27. As can be seen particularly clearly in FIG. 2, the first adhesive body 25 is preferably inserted in the transmitter opening 12, with the first adhesive body 25 expediently completely filling the transmitter opening 12. In this embodiment, in a corresponding manner, the second adhesive body 26 is inserted in the receiver opening 13 and expediently dimensioned such that it completely fills the receiver opening 13. The adhesive bodies 25, 26 may be designed such that they adhere to the transmitter element 3 and to the receiver element 4, respectively. The adhesive bodies 25, 26 may consist, for example, of a gel-like adhesive compound which is poured into the openings 12, 13 during production of the sensor 1. This adhesive compound then solidifies or hardens to a defined extent, with the adhesive compound being designed such that, on the inner side 9 of the carrier part 2, it has a surface which adheres at least to human skin. In order to be able to transport the finished sensor 1, it is expedient to apply a peelable protective film (not shown) to the inner side 9 of the carrier part 2 also in the region of the adhesive bodies 25, 26. This protective film may then be removed directly before use of the sensor 1. On account of the arrangement of the optoelectronic components 3, 4 of the sensor 1 between the carrier part halves 2 a, 2 b, following assembly of the sensor 1 the transmitter unit 3 and the receiver unit 4 are housed in a protected manner inside the carrier part 2. LIST OF REFERENCES 1 sensor 2 carrier part 3 transmitter unit 4 receiver unit 5 cable 6 plug 7 composite cable 8 first textile layer 9 inner side of 2 10 first layer of foamed material 11 first adhesive film 12 receiver opening 13 transmitter opening 14 longitudinal center line of 2 15 outer side of 2 16 second textile layer 17 second layer of foamed material 18 second adhesive film 19 retaining plate 20 projection on 2 21 end section of 7 22 Velcro fastening 23 hook element of 22 24 loop element of 22 25 first adhesive body 26 second adhesive body 27 notch 28 tab Referenced byCiting PatentFiling datePublication dateApplicantTitleUS8346334 *Jul 27, 2006Jan 1, 2013Koninklijke Philips Electronics N.V.Medical sensorUS8688185 *Dec 18, 2009Apr 1, 2014Envitec-Wismar GmbhDevice for measuring blood, tissue, and skin parametersUS8825126Mar 15, 2012Sep 2, 2014Nihon Kohden CorporationProbeUS20080200786 *Jul 27, 2006Aug 21, 2008Koninklijke [Holops ElectronicsMedical SensorUS20110152649 *Dec 18, 2009Jun 23, 2011Envitec-Wismar GmbhDevice for measuring blood, tissue, and skin parameters* Cited by examinerClassifications U.S. Classification600/473, 600/500International ClassificationA61B6/00, A61B5/02, A61B3/00, A61B5/00Cooperative ClassificationA61B5/6843, A61B5/14552European ClassificationA61B5/1455N2, A61B5/68B5Legal EventsDateCodeEventDescriptionSep 22, 2011FPAYFee paymentYear of fee payment: 4Aug 3, 2005ASAssignmentOwner name: KONIKLIJKE PHILIPS ELECTRONICS N.V., NETHERLANDSFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SCHMID, ALFONS;REEL/FRAME:017570/0961Effective date: 20040209RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services