Showing posts with label medical. Show all posts
Showing posts with label medical. Show all posts

Sunday, July 6, 2025

Oh, patents! Diane von Fürstenberg medical gown

 Copyright © Françoise Herrmann

A hospital gown designed by a well-known fashion stylist? Yes, a hospital gown designed by Diane von Fürstenberg, celebrated for her iconic wrap-around dresses, chairwoman of the Council of Fashion Designers of America (CFDA) from 2006 to 2019, and inducted into the National Women’s Hall of Fame in 2019, among many additional accolades.

The US utility patent, US8990966, titled Medical garment, was awarded to Diane von Fürstenberg, Erin Przekop, and Jeanne M. Ryan, on March 31st, 2015, and assigned jointly to Diane von Fürstenberg Studio L.P., and The Cleveland Clinic Foundation. Although the patent is a utility patent vs. a design patent that would otherwise cover only the ornamental aspects of the gown, the patent explicitly addresses both functionality and appearance. The functionality of being able to easily access a patient’s body for examination. The attractiveness of a gown that might be comforting to patients, while still providing coverage. Most importantly, an inventive gown that might also be fastened by patients without assistance, since the patent states that most hospital gowns are inspired by 19th-century night shirts, further tailored in a variety of ways to open and close in the back.

Commissioned by the Cleveland Clinic to design a gown, Diane von Fürstenberg (2021) stated: “ I was taken aback. I thought, “Why?” But then I understood: It’s about the dignity of the patient.” Fürstenberg then explained that she designed a print and worked with the hospital nurses on the gown’s functionality. In particular, she mentions that the gowns come in three sizes that are color-coded so that the correct size might be easily grabbed in a hurry.


                                     

The patent Figure 1, shown above, depicts a plan view of the inventive garment or gown 11, comprising three substantially rectangular panels, one central panel 12, and two side panels 13 and 14. The central panel 12 has a right edge 12c, and a left edge 12 b, respectively joined via the right seam 17, and the left seam 16, to the side panels 13 and 14.

The gown comprises two sleeves, a right sleeve 21, and a left sleeve 18, attached to the central and side panels (11-14) through the right and left armholes 22 and 19. The two sleeves 18 and 21 further comprise corresponding slits 36 and 37, secured with fasteners 38, to enable access to the patient’s arms.

The gown also comprises a V-neck 39, which may be worn on the front or on the back of a patient's body. When the gown is worn with the V-Neck 39 on the front, the pocket 41 appears on the patient’s chest. When the V-neck 39 is worn on the back, the pocket 48 appears on the patient's chest. The gown comprises two more pockets, the side pocket 32 attached to the seam 16, and the side pocket 33 attached to the seam 17.

The gown further comprises a tunnel-like waistband 23, extending across the left panel 13 and the central panel 12. A first belt 24 is anchored at point 24a on the seam 16, and extends out of the waistband 23, through the side panel 13. A second belt 26 is anchored at point 26a, also on the seam 16, but it extends out of the waistband 23, through the central panel 12. Both belts 24 and 26 cooperate like drawstrings to cinch the waistband 23. Two additional ties 28 and 27 are provided, respectively attached to the outer edge of the side panel 14, and to the seam 16, both at waistband 23 height. The ties, 28 and 27, are meant to coordinate with the cinching drawstring belts, 24 and 26.

Although the gown is described as a medical gown for use at hospitals, nursing homes, doctors’ offices, and other healthcare facilities, the scope of the invention is recited as extending to health spas, beauty salons, as well as to private uses, or to uses requiring the functionalities of the garment. In terms of materials, the patent recites multiple suitable materials, such as natural or synthetic fabric. Synthetic fabric unlimited to polyester, acrylic, polyamide or polyolefin fiber and combinations, provided that both the materials and the tailoring can sustain the rigors of use and multiple washing.

The patent abstract is included below.
A medical garment formed of a central body region and two side regions with a pair of belts and a pair of fasteners for securing the garment around a patient’s body is provided. The central body region may be worn on the back or front and may have a V-neck form. A waistband extends across the central body region and across one side region with a first belt secured at the junction of the central region and the second side region and extending to the outer edge of the first side region. The second belt extends from the secured end of the first belt through the waistband across the central body region, the second belt exiting the waistband at the junction of the second side region and central body region. A first fixed tie is positioned at the outer edge of the second side region along the position of the waistband. A second fixed tie is secured to the inside of the waistband between the central body region and first side region. This garment design allows for easy gathering of fabric to present a secure and attractive body covering. [Abstract US8990966]

References
Council of Fashion Designers of America (CFDA)
Cleveland Clinic
https://my.clevelandclinic.org/
Diane von F
ürstenberg (website)
www.dvf.com
Luthra, S. (March 30, 2025). A new unusual Diane Von F
ürsetenberg gown. The Washington Post.

Wednesday, July 27, 2022

Oh, patents! Twistlight

 Copyright © Françoise Herrmann

More than 1.4 billion vein punctures are performed each year, with about 33% failing access the first time, especially for children, obese people, the elderly, and people with heavily pigmented skin (National Center for HealthStatistics). Repeat attempts at finding a vein also create pain and discomfort for patients, as well as an increased risk of infection and complication (Leipheimer et al., 2019).

In response to the problematic situation of failed vein access attempts, aka “difficult vein access” (DVA), the Twistlight is a hand-held, light-assisted application aid, designed to increase first-stick access to veins. The device makes it easier to detect veins, even veins in bad condition, and assists with the insertion of an IV line thanks to its integrated catheter feed.

The Twistlight invention, masterminded by Tina Zimmer, is recited (in German) in the UN World Intellectual Property Organization (WIPO) patent, WO2016091956A1, titled Application Device. Below, the official translation of the invention abstract, together with Figure 2a, one of the referenced patent drawings, depicting the application device in use on a patient arm. An image of the marketed device is also included.

The invention relates to an application device (1) for the light-based finding of a peripheral vein, and the subsequent execution of a venipuncture in the region of a skin surface (4) of a patient, comprising at least one light source (2) and a catheter holder (6) for holding a catheter (2), wherein a support surface (7) is provided for supporting the application device (1) on the skin surface (4), and at least one part (8) of a transmission surface (9) for transmitting the light beams (10) generated by the light source (5) into a tissue located under the skin surface (4) is arranged in the region of the support surface (7). The invention also relates to a catheter application assembly, a catheter assembly and a carrier element having a catheter holder, as well as a single-use protective sleeve for a carrier element. [Abstract]



In 2017, the Twistlight device was selected as International runner-up for a James Dyson Award, and was the winner for the German Design Award
.  


References

James Dyson International runner-up
https://www.jamesdysonaward.org/en-US/2017/project/twistlight/


German Design Award 2017

Leipheimer, J.M., Balter, M. L. , Chen, A.I., Pantin, E. J., Davidovich, A. E., Labazzo, K. S., and M. L. Yarmush1 (2019). First-in-human evaluation of a hand-held automated venipuncture device for rapid venous blood draws. Technology (Singap World Sci). 2019 Sep-Dec; 7(3-4): 98–107.

National Center for Health Statistics, N. National Hospital Ambulatory Medical Care Survey: 2016 Emergency Department Summary Tables

National Center for Health Statistics – FastStats

Tina Zimmer - Twistlight

Wednesday, August 23, 2017

Oh, patents! Modiface Inc.

Copyright © Françoise Herrmann

If you would like to look into a mirror and edit your face and hair, then you might consider the Modface Inc Augmented Reality (AR) apps! 

Modiface Inc offers AR applications using live video simulation, both for trying on cosmetics, and for skin analysis and recommendation of beauty care products. 

The company develops and customizes its AR skin analysis and face simulation applications, designated Beauty AR SDK and Face AI SDK, on mobile or desktop platforms, for such large cosmetics companies as L’Oréal Vichy, Sephora and Estée Lauder. Android and iOS still-photo versions of the Modiface Inc technology are available independently. iOS11 will offer the live mirror Modiface AR apps.

Modiface Inc AR skin assessment and face simulation technology also has medical applications, for example, the visualization of planned plastic surgery.

The company was granted the following hyperlinked patents for various aspects of the Modiface Inc AR face simulation and skin analysis technology:
  • US9687155 06-27-2017 – System method and application for skin health visualization and quantification
  • US927540003-01-2016 - Method and system for simulated product evaluation via personalizing advertisements based on portrait images 
  • US891008212-9-2014 - Method and system for modification of digital images through rotational cascading-effect interface
  • US8725560 – 05-13-2014 - Method and system for simulated product evaluation via personalizing advertisements based on portrait images 
  • US8711175 - 04- 29-2014 - Method and system for simulating superimposition of a non-linearly stretchable object upon a base object using representative images 
  • US8660319 – 02-25-2014 - Method, system and computer program product for automatic and semi-automatic modification of digital images of faces 
  • US8620038 – 12-31-2013 - Method, system and computer program product for automatic and semi-automatic modification of digital images of faces
  • US8265351 - 09-11-2012 - Method, system and computer program product for automatic and semi-automatic modification of digital images of faces

The following applications were also filed at the USPTO:
  • US2016253713 (A1) ― 2016-09-01 - System and method for the indication of modification region boundaries on facial images  
  • US2016154993 (A1) ― 2016-06-02 - Automatic segmentation of hair in images  
  • US2014214553 (A1) ― 2014-07-31 - Method and System For Simulated Product Evaluation Via Personalizing Advertisements Based On Portrait Images
  • US20120299945 – 11- 29-2012 - Method, system and computer program product for automatic and semi-automatic modification of digital images of faces  
  • US20080267443 – 10-30-2008 - Method, System and Computer Program Product for Automatic and Semi-Automatic Modification of Digital Images of Faces
  • US20070258656 – 11-08-2007 - Method, system and computer program product for automatic and semi-automatic modification of digital images of faces
  • CA2651539 (A1) ― 2010-01-18 - Method and apparatus for hair colour simulation

References

Modiface Inc.
Vichy Laboratoires: Ideal skin diagnosis powered by Vichy and Modiface
Sephora (in store and mobile, simulation & analysis)
Estée Lauder
Modiface launches patented skin assessment platform - Wired Magazine - Aug. 15, 2017 

Thursday, March 26, 2015

SXSW™ 2015 Awards – Non-invasive skin cancer detection device

Copyright © Françoise Herrmann

The University of Texas Cockrell School of Engineering (Sharma, 2014) won the 2015 SXSW Interactive Innovations Award, in the “Sci-fi No Longer” category, with a non-invasive skin cancer detection device. This is a pen looking optical probe that uses light spectroscopy in three different modes to interrogate skin tissue. It is non-invasive as it requires no biopsy for testing and diagnosis of skin lesions.

The three spectroscopic technologies of this device, termed MMS -multimodal spectroscopy, are  Raman spectroscopy (RS), diffuse reflectance spectroscopy (DRS) and laser-induced fluorescence spectroscopy (LIFS). Together these technologies, and their different modes of emitting light, are designed to provide complementary sorts of micro-environmental and biochemical information about skin tissue, for a far improved and faster diagnosis, compared to traditional macro-visual biopsy-based detection.  For example, an interrogation of skin tissue using the multimodal spectroscopy (MMS) probe takes about 4.5 seconds (compared to several days for biopsy results).

US2012057145 (A1) titled Systems and methods for diagnosis of epithelial lesions is the patent application corresponding to this device and its algorithms.

In general, this invention addresses problems of skin cancer diagnosis and the current and most common methods of diagnosis involving tissue biopsy. Beyond the discomfort, cosmetics, expenses and turnaround time for biopsy results, this most common method of diagnosis invokes inherently qualitative methods of macro-visual clinical examination, that is, physician experience in visually identifying which lesions are biopsied.  In turn, critical reliance on physician experience enters the equation, because there are documented differences in the accuracy with which lesions are detected among general practitioners and dermatologists [US2012057145], compounded by issues of access to specialized dermatology care, whether due to costs, geographic location or scarcity, and the burden of unnecessary biopsy. Finally, the accuracy of this inventive diagnostic method is also intended to resolve issues of safety margins for the perimeter of excisions when surgery is required.

Skin lesion micro-environments and bio-chemical properties are interrogated via spectroscopy, that is: 1. emitting a light source into a skin tissue using an optic fiber, 2. collecting the light re-emitted from the skin tissue with a second optic fiber, and 3. generating spectra for the light re-emitted from the skin tissue in terms of diagnostically relevant parameters such as intrinsic fluorescence and absorption, reduced scattering coefficients and Raman scattering, using a spectrophotometer. Then, the spectral information is matched with known properties using a specifically generated look-up table algorithm. It is known for example that the fluorescence of certain endogenous fluorophores such as collagen changes in the presence disease, and that the scattering and absorption properties of light will be affected by morphological changes of the tissue. The analysis of the light emitted back from the skin tissue thus yields micro-information about the properties of the skin tissue, such as collagen structure, nuclear morphology, blood fraction, oxygen saturation and a tissue scattering coefficient. all which swiftly informs diagnosis.

The development of this invention device and its method - that is, of the hardware and software, as well as the associated research were funded by the Centers for Disease Control.

The abstract of this multimodal spectroscopy invention, recited in US2012057145 (A1) titled Systems and methods for diagnosis of epithelial lesions, is included below, as well as a an image of the front view of the probe surface in contact with skin, showing Raman spectroscopy delivery (red) and collection (blue) fibers, and the diffuse reflectance spectroscopy delivery (yellow)  and collection (green)  fibers (Sharma, 2014).  

"Systems comprising an optical fiber switch connected to a light source and an optical fiber probe, the optical fiber probe comprising a first optical fiber connected to the optical fiber switch and a second optical fiber connected to a spectrophotometer. Methods for determining one or more tissue parameters comprising: emitting light from a first optical fiber into a tissue; collecting the light reemitted from the tissue with a second optical fiber; generating a spectra of the light reemitted from the tissue with a spectrophotometer; and utilizing a look-up table based algorithm to determine one or more tissue parameters, wherein the lookup-table based algorithm comprises the steps of: generating a look-up table by measuring the functional form of a reflectance measured by the spectrophotometer using one or more calibration standards with known optical properties; and implementing an iterative fitting routine based on the lookup-table." Abstract US2012057145 (A1)

Work appears underway to attempt to correct the effects of skin pigmentation on spectroscopic methods of skin cancer detection (e.g.; Soyemi et. al., 2005; Bersha 2010), including the issue of the depth of skin tissue interrogation (Tseng et. al. (2008). If skin cancer is more prevalent in fair skin individuals, it is nonetheless more fatal in darker skin individuals due to late diagnosis and misinformation about epidemiological data (The Skin Cancer Foudnation, 2009). 

In any event, this award-winning, non-invasive diagnostic technology is indeed... no longer sci-fi... 

References
Bersha, K. S. (2010) Spectral imaging and analysis of human skin. file://psf/Home/Downloads/Spectral%20imaging%20and%20analysing%20human%20skin,%20Kusse%20Sukuta%20BERSHA%20(1).pdf
Meyers, C. (2014) 3 in 1 Optical skin Cancer Probe.
http://www.aip.org/publishing/journal-highlights/3-1-optical-skin-cancer-probe
Sharma, S., Marple, E., Reichenberg, J. and James W. Tunnell (2014) Design and characterization of a novel multimodal fiber-optic probe and spectroscopy system for skin cancer applications.
http://scitation.aip.org/content/aip/journal/rsi/85/8/10.1063/1.4890199
Soyemi, O., Landry, MR., Yang, Y., Idwasi, P., and B. Soller (2005) Skin color correction for tissue spectroscopy: demonstration of a novel approach with tissue mimicking phantoms. Feb. Applied Spectroscopy, 59(2), pp. 237-44
SXSW™ 2015 Interactive Media Awards 
http://sxsw.com/interactive/awards/interactive-awards
Tseng, H.S., Grant, A. and A.J. Durkin (2008) In vivo determination of skin near0infrared optical properties using diffuse optical spectroscopy. Journal of Biomedical Optics, 13(1).
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2626348/
UT – University of Texas (2014) New device improves Skin Cancer Detection http://www.utexas.edu/news/2014/08/05/tunnell-cancer-detection-device/