Medical-procedure assistance device and method with improved optical contrast, and new practitioner-safety, device-fixation, electrode and magnetic treatment and lumen-dilation capabilities
First Claim
1. A medical-procedure assistance or guidance device capable of providing substantially non-invasively-produced or excited optical-contrast of one or more of cutaneous, subcutaneous, subsurface or internal tissues, body-fluids, lumens or features that may require locating or invasive intervention, including such as for needle-sticking or needle-biopsy sampling, the produced optical contrast improving a practitioner'"'"'s ability to one or more of locate, target or avoid said tissues, body-fluids, lumens or other features in support of an immediate or later procedure, treatment, therapy, diagnostic test or intervention requiring knowledge of said features(s) location(s) or properties, the assisted or guided procedure, treatment, therapy, diagnostic test or intervention which may or may not involve physical skin or surface-tissue penetration to or in avoidance of the located subcutaneous or tissue-subsurface feature(s), the device comprising:
- an illumination or optical-excitation housing physically coupleable, adjacently-presentable or closely or contact-wise juxtaposable to a skin, tissue, limb or organ surface, the housing containing, including or supporting at least one or more discrete light sources and/or one or more distributed light sources, at least some of the light output of the at least one powered discrete and/or distributed source directable at least into one or more skin, tissue, limb or organ first-portion(s);
andan optical contrast-improvement means,the device providing improved optical contrast of at least some subsurface or surface skin, tissue, limb or organ features or lumens as viewed at, from, from within, through or out of a second skin, tissue, limb or organ portion(s) such that the practitioner may then or thereafter one or both of;
(i) utilize the feature location information for a patient-beneficial purpose, or (ii) utilize the feature location information to guide or assist a subcutaneous, tissue-subsurface, cutaneous or skin-targeted non-invasive or invasive medical procedure;
the first and second skin, tissue, limb or organ portions being, at least in part, different or the same portions; and
one or more second skin, tissue, limb or organ portions allowing at least one of direct or indirect viewing or recording of the device-produced or excited optical contrast.
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Accused Products
Abstract
Many medical procedures, such as needle-sticking, could benefit from an assistive device that improves the optical contrast of externally targeted features and lumens of interest residing in and underneath the skin and/or exposed organ tissues. The inventive inexpensive device and method are useable on such externally targeted features and lumens while also protecting the practitioner and freeing up both of his/her hands, if necessary, to thereby eliminate practitioner self-sticking problems. The present device provides good optical contrast and also provides splash-protection against HIV, hepatitis and other blood-borne diseases. The inventive device method and apparatus may also include vibratory subcutaneous electrical nerve stimulation (TENS), drug-based or heating treatment capabilities for reducing pain, both perceived and real pain, associated with a device guided procedure. Finally, the pain reduction mechanisms have also been found useful for lumen dilation.
50 Citations
25 Claims
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1. A medical-procedure assistance or guidance device capable of providing substantially non-invasively-produced or excited optical-contrast of one or more of cutaneous, subcutaneous, subsurface or internal tissues, body-fluids, lumens or features that may require locating or invasive intervention, including such as for needle-sticking or needle-biopsy sampling, the produced optical contrast improving a practitioner'"'"'s ability to one or more of locate, target or avoid said tissues, body-fluids, lumens or other features in support of an immediate or later procedure, treatment, therapy, diagnostic test or intervention requiring knowledge of said features(s) location(s) or properties, the assisted or guided procedure, treatment, therapy, diagnostic test or intervention which may or may not involve physical skin or surface-tissue penetration to or in avoidance of the located subcutaneous or tissue-subsurface feature(s), the device comprising:
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an illumination or optical-excitation housing physically coupleable, adjacently-presentable or closely or contact-wise juxtaposable to a skin, tissue, limb or organ surface, the housing containing, including or supporting at least one or more discrete light sources and/or one or more distributed light sources, at least some of the light output of the at least one powered discrete and/or distributed source directable at least into one or more skin, tissue, limb or organ first-portion(s); and an optical contrast-improvement means, the device providing improved optical contrast of at least some subsurface or surface skin, tissue, limb or organ features or lumens as viewed at, from, from within, through or out of a second skin, tissue, limb or organ portion(s) such that the practitioner may then or thereafter one or both of;
(i) utilize the feature location information for a patient-beneficial purpose, or (ii) utilize the feature location information to guide or assist a subcutaneous, tissue-subsurface, cutaneous or skin-targeted non-invasive or invasive medical procedure;the first and second skin, tissue, limb or organ portions being, at least in part, different or the same portions; and one or more second skin, tissue, limb or organ portions allowing at least one of direct or indirect viewing or recording of the device-produced or excited optical contrast. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
or NIR or Near Infrared approx 0.7-1.0 microns, SWIR or Short Wave Infrared approx 1.0-3.0 microns, MWIR (or MIR) or Mid Infrared approx 3.0-8.0 microns, LWIR (or LIR) or Long Wave Infrared approx 8.0-12.0 microns, VLWIR or Very Long Wave Infrared approx 12-30 microns; p) at least one discrete or distributed light source is an ultraviolet or UV source or emits in the 255 nanometers to 420 nanometers wavelength range; q) a feature of interest is optically contrasted by two or more light sources from different angles, optionally sequentially; r) two or more discrete light sources form an array or two or more distributed light sources are employed, or s) illumination or excitation light is delivered at an angle or angles to features of interest to minimize a shadowing phenomenon, including delivering illumination in planes generally parallel to elongated lumens.
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9. A guiding or assistive device for guiding, assisting or implementing pain-free or reduced-pain patient skin, tissue, limb, organ or lumen-disrupting, penetrating or painful medical procedures therein or thereat, the device including:
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a) an optical contrast producing means for producing surface-visible or surface-imageable optical contrast of patient features of interest in the skin or in a subsurface tissue, organ, lumen or body-fluid, the contrast producing means utilizing at least some skin or tissue injected or penetrating light deliverable by one or more discrete light sources and/or one or more distributed light sources; and b) a real-pain or perceived-pain reduction means utilizing at least one TENS, other electrotherapy, magnetic-field based therapy or a drug, heating, cooling or vibratory pain-relief mechanism, the pain reduction mechanism being applied at one or more points in time to reduce some patient real or perceived pain related to a future, current or prior procedure, the procedure carried out with optical assistance or guidance from the assistive device, the optical contrast being caused by at least one mechanism of optical attenuation, optical scattering, optical excitation, optical reflection, optical refraction, optical diffraction or by any of optical shadowing, optical backlighting, optical side-lighting or optical toplighting, an optical contrast agent or optically excitable agent optionally being employed. - View Dependent Claims (10, 11, 12)
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13. A method of executing a skin, tissue, organ, limb, body-fluid or lumen related, medically-related or health-related procedure with minimal or no pain, the procedure which might otherwise cause perceived or real pain for a patient or subject, the method utilizing both an optical-contrast provision assistive or guiding device and a device-integrated or device-supporting pain-reduction means comprising:
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a) an optical contrast producing or exciting device for viewing or locating skin, tissue, limb, organ, body-fluid or lumen-related subsurface features of interest, said features(s) being the target of the intended procedure or being features to be avoided during said procedure, the device assisting or guiding the procedure, optical light being delivered or excited by at least one discrete light source and/or at least one distributed light source, the optical contrast being caused by at least one mechanism of optical attenuation, optical scattering, optical excitation, optical reflection, optical refraction, optical diffraction or by any of optical shadowing, optical backlighting, optical side-lighting or optical toplighting, an optical contrast agent or optically excitable agent optionally being employed; and b) at least one of a heating, cooling, vibratory, acoustic, drug-based, TENS-based or other electrotherapy-based or magnetic-field application-based pain reduction means that can be applied in an appropriate timed and locational relationship to the actual site of the procedure and/or site of the procedural pain, wherein; i) the pain reducing means is operated or applied at least one of before, during or after the execution of the procedure in support of a pain-limited or pain-free procedure wherein real or perceived pain relief is delivered; ii) the assistive or guiding device is optionally fixated, loosely and/or snugly, to a limb, tissue, organ or skin of interest at least one point in time in support of one or more of feature-finding, tissue or lumen manipulation or procedure delivery; and iii) the assistive or guiding device optionally provides operational support for, if not also actually copackages or physically supports, one or more of said pain-reduction means. - View Dependent Claims (14, 15, 16)
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17. A method of favorably dilating a lumen in preparation or support of a medical procedure, including a needle-stick, comprising:
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a) optically determining a skin or tissue region containing or overlying said lumen utilizing at least one discrete light source and/or at least one distributed light source mounted in or on a light-housing juxtaposable, presentable-to or mountable to a patients tissues, the light housing including at least one discrete and/or distributed light source, optical contrast being caused by at least one mechanism of optical attenuation, optical scattering, optical excitation, optical reflection, optical refraction, optical diffraction or by any of optical shadowing, optical backlighting, optical side-lighting or optical toplighting, an optical contrast agent or optically excitable agent optionally being employed; and b) applying TENS or other electrotherapy excitation, vibratory or acoustic excitations to said lumen region sufficient to cause the desired dilation of the lumen for a useful period, the exciter(s) itself not necessarily being located directly over or adjacent said lumen but at least its excitations being coupled into said lumen region. - View Dependent Claims (18, 19, 20, 21)
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22. A cuff-like optical assistance or guidance device for application to medical procedures, exams, treatments, therapies or surgeries comprising:
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a) a cuff-like entity that wraps around or surrounds at least a portion of a human limb or organ, said wrapping or surrounding being at least in part one or both of in contact with said limb or being proximal or gapped from or to said limb surface; b) the cuff-like entity including one or more single element or multielement discrete light sources and/or one or more distributed light sources capable of injecting light into or upon a first skin or tissue portion; and c) the cuff-like entity including or defining a second skin or tissue portion wherefrom or whereat optical contrast of tissue surface or subsurface features produced by said injected light may be observed in at least one of an unaided or aided manner by a practitioner, wherein; the optical contrast being caused by at least one mechanism of optical attenuation, optical scattering, optical excitation, optical reflection, optical refraction, optical diffraction or by any of optical shadowing, optical backlighting, optical side-lighting or optical toplighting, an optical contrast agent or optically excitable agent optionally being employed; and the device allowing for any required access of a device-guided or assisted procedural implement to the patient'"'"'s tissues. - View Dependent Claims (23, 24, 25)
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Specification