US20090064919A1 - Indication tags - Google Patents
Indication tags Download PDFInfo
- Publication number
- US20090064919A1 US20090064919A1 US11/850,973 US85097307A US2009064919A1 US 20090064919 A1 US20090064919 A1 US 20090064919A1 US 85097307 A US85097307 A US 85097307A US 2009064919 A1 US2009064919 A1 US 2009064919A1
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- United States
- Prior art keywords
- garment
- tag
- indicator
- clothing
- sweat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D27/00—Details of garments or of their making
- A41D27/08—Trimmings; Ornaments
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
- G08B13/2451—Specific applications combined with EAS
- G08B13/246—Check out systems combined with EAS, e.g. price information stored on EAS tag
Definitions
- This invention relates to methods and means for the determination of prior use of new articles of clothing including shoes and particularly for the detection of use of garments which are returned after sale.
- a vexing problem for retailers of articles of clothing and particularly for expensive clothing such as gowns, tuxedos (non-rental), suits and the like is the proclivity of customers, who have a single use need, to purchase the article of clothing and use it. Thereafter, the customer rewraps it or cleans it (usually with dry cleaning) and rewraps it for return to the retailer for a refund or an exchange.
- the fact that the garment has been used is usually not readily apparent, especially with only a single use. However, if the garment is resold as new, a subsequent purchaser, on close examination, is often unable to detect that the garment was used.
- the reputation of the retailer suffers and the purchaser is unconsciously confronted with the fact that what was purported to be a new garment was previously worn. This is particularly noisome with garments which directly contact skin such as undergarments (assuming they are returnable).
- FIGS. 1 a and 1 b are visual examples of a tag imprinted with water based ink in accordance with the present invention which is affixed to a garment and which is in before and after use condition respectively;
- FIGS. 2 a and 2 b are visual examples of before and after use respectively of a tag comprised of thin tissue paper with sensitivity to water and/or sweat;
- FIGS. 3 a and 3 b are before and after views of another embodiment of a detection tag of a specific color which changes upon contact with water and/or sweat;
- FIG. 4 is a tag used for detection purposes which comprises a surface upon which detectable material (drugs, explosives, etc.) is deposited and held for detection.
- the indicator tags of the present invention for use with retail sales and material use detection, provide readily apparent appearance changes under conditions of use such as contact with water and/or sweat, acid or base conditions, or contact with dry cleaning chemical materials. With widespread utilization, tags having material retention surfaces, would be useful in enabling detection of contraband materials such as drugs and dangerous materials such as explosives, from residue left on the tags on clothing retrieved from suspects.
- the indicator tags may be affixed to clothing such as by a sewn connection or otherwise integrated with the garment material.
- the position of the tag should preferably be selected to be at a portion of the garment directly exposed to a user's skin such as at the sleeves or neck portions where sweat detection is desired and where intervening garments such as undergarments do not block contact with body sweat.
- the tag may be integrated with clothing tags such as those which provide washing instructions, size, manufacturer, etc. with indicia such as water soluble ink which fades or changes upon contact or the presence of water or sweat, with the fading or change indicating either sweat or the garment having been simply rinsed to remove telltale grime or stains.
- clothing tags such as those which provide washing instructions, size, manufacturer, etc. with indicia such as water soluble ink which fades or changes upon contact or the presence of water or sweat, with the fading or change indicating either sweat or the garment having been simply rinsed to remove telltale grime or stains.
- the tag may be covered prior to sale and uncovered by a sales person upon actual purchase.
- garment items such as buttons, necessary for actual utilization, may be tape sealed (with indicia imprinted tape) or otherwise “inactivated” to indicate wearing use other than a mere try-on when they are found to have been broken.
- rub-off wear indicators may be utilized to indicate usage with wear which would normally not be visible with short use duration, e.g. 500 steps, which is longer than normal try-out use but not sufficient to actually visibly wear down the shoes.
- FIGS. 1 a and 1 b show a shirt 1 with a water or sweat sensitive tag 10 having indicia thereon, shown as a cross line 11 in FIG. 1 a .
- the cross line is imprinted on the tag in water soluble ink, with the tag being in a hidden portion of the neck 2 , when worn in a position in contact with skin of the user.
- cross line 11 in FIG. 1 a either visibly fades or disappears entirely as in FIG. 1 b .
- the tag 20 is comprised of thin tissue paper which disappears or is damaged with use, with hollow 21 shown in FIG. 2 a disappearing, as shown in FIG. 2 b.
- a tag 30 is initially a pre-selected color such as blue (with the cross hatching indicating blue).
- a dry layer of a stain remover (or any other material with a similar chemical response) is spread over the tag 30 .
- the stain remover or similar material is activated to either remove the color (such as red, with the cross hatching indicating red) or to change it to another color as a visually clear indication of use.
- the tag 40 shown in FIG. 4 , is adapted to collect and retain detectable trace materials such as with a commercially available low tack material fabric.
- the commercially available low tack adhesive (shown as dots 41 ) is selected to be adherent to fabrics and clothing but not to skin, whereby it will retain a small but detectable residue of liquid or fine powder material.
- the tag can retain materials such as explosives, gunpowder, drugs, asbestos, or any powder or trace material which can be used for criminal investigation or other forensic purposes.
- another tag embodiment is adapted to detect changes in pH (acidic or basic changes) by means of litmus impregnation.
- Litmus is a water-soluble mixture of different dyes extracted from lichens, specially Roccella tinctoria. The mixture has CAS number 1393-92-6. It is often absorbed onto filter paper. The resulting piece of paper or solution with water becomes a pH indicator (one of the oldest), used to test materials for acidity. Blue litmus paper turns red under acidic conditions and red litmus paper turns blue under basic (i.e. alkaline) conditions, the color change occurring over the pH range 4.5-8.3 (at 25° C.). Neutral litmus paper is purple in color.
- the mixture contains 10 to 15 different dyes (Erythrolein (or Erythrolitmin), Azolitmin, Spaniolitmin, Leucoorcein and Leucazolitmin). Pure Azolitmin does show nearly the same effect as litmus.
- the tag may either be comprised of a standard litmus paper or a litmus impregnated fabric. It is noted that since the purpose of the tag is fundamentally for detection of short term use, it need not be highly durable. In this embodiment it is noted that the skin and perspiration thereon is acidic while cleaning solutions and materials such as soap are basic in nature and thus the litmus is a good indicator or either wearing use or cleaning.
- litmus detection embodiment is of particular utility with articles of men's clothing since men tend to have more acidic perspiration with attendant more pronounced litmus color change indication.
- a further embodiment is a tag which is sensitive to common chemicals utilized in dry cleaning such as tetrachloroethylene (or other dry cleaning compounds).
- Tetrachloroethylene Cl 2 C ⁇ CCl 2 is a manufactured chemical compound that is widely used for the dry cleaning of fabrics and for metal-degreasing. It is also used to make other chemicals and is used in some consumer products.
- Other names for tetrachloroethylene include perchloroethylene, perc, PCE, and tetrachloroethene. It is a nonflammable liquid at room temperature. It evaporates easily into the air and has a sharp, sweet odor.
- tetrachloroethylene when it is present in the air at a concentration of 1 part per million (1 ppm), although some can smell it at even lower levels.
- Tags which have been adapted to retain such concentrations can be odor tested. More reliably however, tetrachloroethylene is decomposed by nascent oxygen by a suitable oxidizing agent contained in a tag to liberate hydrogen chloride which discolors an indicator in the tag to purple.
Abstract
A method for determining whether a garment has been used comprising integrating an indicator tag to a garment having an indicator material which reacts with any one of body sweat, water or dry cleaning chemicals or provides wear down indication to provide a visual indication of such use. A garment with an indicator tag having an indicator material which reacts with any one of body sweat, water or dry cleaning chemicals or provides wear down indication to provide a visual indication of such use.
Description
- This invention relates to methods and means for the determination of prior use of new articles of clothing including shoes and particularly for the detection of use of garments which are returned after sale.
- A vexing problem for retailers of articles of clothing and particularly for expensive clothing such as gowns, tuxedos (non-rental), suits and the like is the proclivity of customers, who have a single use need, to purchase the article of clothing and use it. Thereafter, the customer rewraps it or cleans it (usually with dry cleaning) and rewraps it for return to the retailer for a refund or an exchange. The fact that the garment has been used is usually not readily apparent, especially with only a single use. However, if the garment is resold as new, a subsequent purchaser, on close examination, is often unable to detect that the garment was used. The reputation of the retailer suffers and the purchaser is unpleasantly confronted with the fact that what was purported to be a new garment was previously worn. This is particularly noisome with garments which directly contact skin such as undergarments (assuming they are returnable).
- Many means are available for detection of counterfeit goods including holograms and RF transmitters. Passive tags, used as protection against theft and shoplifting, are difficult to remove from articles and are designed to trigger alarms when they pass though exit detectors (sales clerks either deactivate or remove them at point of sale). However, few, if any expedients are available for tracking use of legitimate items, which have been lawfully purchased and returned.
- It is accordingly an object of the present invention to provide detector elements for readily determining if an article and particularly an article of clothing has been worn or used.
- It is a further object of the present invention to provide the detector elements as an expedient by which clothing retailers or subsequent purchasers can determine if a garment returned by a customer was actually worn and whether it had been cleaned.
- It is yet another object of the present invention to provide detector elements which detect and display whether a garment has been in contact with water, body sweat, chemical stain removers, acidic or basic media or dry cleaning chemicals.
- It is a still further object of the present invention to provide detector elements to detect trace amounts of materials such as explosives, drugs, etc., which are subject to law enforcement or other detection purposes.
- It is another object of the present invention to provide the detector elements in the form of tags with indicia which change in appearance under conditions of use.
- Other features and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings
-
FIGS. 1 a and 1 b are visual examples of a tag imprinted with water based ink in accordance with the present invention which is affixed to a garment and which is in before and after use condition respectively; -
FIGS. 2 a and 2 b are visual examples of before and after use respectively of a tag comprised of thin tissue paper with sensitivity to water and/or sweat; -
FIGS. 3 a and 3 b are before and after views of another embodiment of a detection tag of a specific color which changes upon contact with water and/or sweat; and -
FIG. 4 is a tag used for detection purposes which comprises a surface upon which detectable material (drugs, explosives, etc.) is deposited and held for detection. - The indicator tags of the present invention, for use with retail sales and material use detection, provide readily apparent appearance changes under conditions of use such as contact with water and/or sweat, acid or base conditions, or contact with dry cleaning chemical materials. With widespread utilization, tags having material retention surfaces, would be useful in enabling detection of contraband materials such as drugs and dangerous materials such as explosives, from residue left on the tags on clothing retrieved from suspects.
- The indicator tags may be affixed to clothing such as by a sewn connection or otherwise integrated with the garment material. The position of the tag should preferably be selected to be at a portion of the garment directly exposed to a user's skin such as at the sleeves or neck portions where sweat detection is desired and where intervening garments such as undergarments do not block contact with body sweat.
- The tag may be integrated with clothing tags such as those which provide washing instructions, size, manufacturer, etc. with indicia such as water soluble ink which fades or changes upon contact or the presence of water or sweat, with the fading or change indicating either sweat or the garment having been simply rinsed to remove telltale grime or stains. To preclude erroneous indications resulting from an initial try-on of the garment, the tag may be covered prior to sale and uncovered by a sales person upon actual purchase. Alternatively, garment items such as buttons, necessary for actual utilization, may be tape sealed (with indicia imprinted tape) or otherwise “inactivated” to indicate wearing use other than a mere try-on when they are found to have been broken.
- Alternatively, with articles of clothing such as shoes, rub-off wear indicators may be utilized to indicate usage with wear which would normally not be visible with short use duration, e.g. 500 steps, which is longer than normal try-out use but not sufficient to actually visibly wear down the shoes.
- With respect to the embodiments depicted in the drawings,
FIGS. 1 a and 1 b show a shirt 1 with a water or sweatsensitive tag 10 having indicia thereon, shown as across line 11 inFIG. 1 a. The cross line is imprinted on the tag in water soluble ink, with the tag being in a hidden portion of the neck 2, when worn in a position in contact with skin of the user. Upon contact with water or body sweat,cross line 11 inFIG. 1 a either visibly fades or disappears entirely as inFIG. 1 b. Alternatively, as shown inFIGS. 2 a and 2 b, thetag 20 is comprised of thin tissue paper which disappears or is damaged with use, with hollow 21 shown inFIG. 2 a disappearing, as shown inFIG. 2 b. - In a third embodiment shown in
FIGS. 3 a and 3 b, atag 30 is initially a pre-selected color such as blue (with the cross hatching indicating blue). A dry layer of a stain remover (or any other material with a similar chemical response) is spread over thetag 30. Upon contact with moisture such as water or body sweat which originate with use, the stain remover (or similar material) is activated to either remove the color (such as red, with the cross hatching indicating red) or to change it to another color as a visually clear indication of use. - The tag 40, shown in
FIG. 4 , is adapted to collect and retain detectable trace materials such as with a commercially available low tack material fabric. The commercially available low tack adhesive (shown as dots 41) is selected to be adherent to fabrics and clothing but not to skin, whereby it will retain a small but detectable residue of liquid or fine powder material. In addition to sweat, the tag can retain materials such as explosives, gunpowder, drugs, asbestos, or any powder or trace material which can be used for criminal investigation or other forensic purposes. - In a more specific vein of tag indication, another tag embodiment is adapted to detect changes in pH (acidic or basic changes) by means of litmus impregnation. Litmus is a water-soluble mixture of different dyes extracted from lichens, specially Roccella tinctoria. The mixture has CAS number 1393-92-6. It is often absorbed onto filter paper. The resulting piece of paper or solution with water becomes a pH indicator (one of the oldest), used to test materials for acidity. Blue litmus paper turns red under acidic conditions and red litmus paper turns blue under basic (i.e. alkaline) conditions, the color change occurring over the pH range 4.5-8.3 (at 25° C.). Neutral litmus paper is purple in color. The mixture contains 10 to 15 different dyes (Erythrolein (or Erythrolitmin), Azolitmin, Spaniolitmin, Leucoorcein and Leucazolitmin). Pure Azolitmin does show nearly the same effect as litmus. The tag may either be comprised of a standard litmus paper or a litmus impregnated fabric. It is noted that since the purpose of the tag is fundamentally for detection of short term use, it need not be highly durable. In this embodiment it is noted that the skin and perspiration thereon is acidic while cleaning solutions and materials such as soap are basic in nature and thus the litmus is a good indicator or either wearing use or cleaning.
- The use of the litmus detection embodiment is of particular utility with articles of men's clothing since men tend to have more acidic perspiration with attendant more pronounced litmus color change indication.
- A further embodiment is a tag which is sensitive to common chemicals utilized in dry cleaning such as tetrachloroethylene (or other dry cleaning compounds). Tetrachloroethylene Cl2C═CCl2 is a manufactured chemical compound that is widely used for the dry cleaning of fabrics and for metal-degreasing. It is also used to make other chemicals and is used in some consumer products. Other names for tetrachloroethylene include perchloroethylene, perc, PCE, and tetrachloroethene. It is a nonflammable liquid at room temperature. It evaporates easily into the air and has a sharp, sweet odor. Most people can smell tetrachloroethylene when it is present in the air at a concentration of 1 part per million (1 ppm), although some can smell it at even lower levels. Tags which have been adapted to retain such concentrations can be odor tested. More reliably however, tetrachloroethylene is decomposed by nascent oxygen by a suitable oxidizing agent contained in a tag to liberate hydrogen chloride which discolors an indicator in the tag to purple.
- Although the present invention has been described in relation to particular embodiments thereof, many other variations and modifications and other uses will become apparent to those skilled in the art. It is preferred, therefore, that the present invention be limited not by the specific disclosure herein, but only by the appended claims.
Claims (16)
1. A method for detecting whether a clothing garment has been worn, comprising the steps of:
a) providing an identification tag element with an element for detection and providing an indication of contact of said tag element with any one of: human sweat, clothing garment cleaning materials, and materials foreign to the garment and elements normally associated therewith;
b) integrating the tag element with the clothing garment at a position on the clothing garment which is accessible to one of: human sweat when worn, clothing garment cleaning materials and materials foreign to the clothing garment and elements normally associated therewith, respectively.
2. The method of claim 1 , wherein the detection element comprises a visual indicator when said tag element is in contact with one of the human sweat, clothing garment cleaning materials, and materials foreign to the garment and elements normally associated therewith and wherein the tag element, with visual indicator, is viewed to effect the detection of the garment having been worn.
3. The method of claim 2 , wherein the detection element, which provides a visual indicator comprises indicia comprised of a water based ink which fades or disappears upon contact with sweat or water.
4. The method of claim 2 , wherein the detection element, which provides a visual indicator comprises a material which disintegrates or is damaged upon contact with sweat or water.
5. The method of claim 4 , wherein the material which disintegrates or is damaged is comprised of tissue paper.
6. The method of claim 2 , wherein the detection element comprises a litmus preparation dye.
7. The method of claim 2 , wherein the detection element comprises a material which reacts with a material used in dry cleaning of clothing.
8. The method of claim 7 , wherein the material used in dry cleaning of clothing is tetrachloroethylene and the material which reacts with the tetrachloroethylene is an oxidizing agent which reacts with tetrachloroethylene to release hydrogen chloride which discolors the tag to provide the visual indication.
9. The method of claim 2 , wherein the tag includes a material having tack characteristics whereby residue materials of an environment wherein the wearer of the garment is located is retained for subsequent analysis.
10. The method of claim 9 , wherein said residue material is selected from gunpowder, explosives, and illicit drugs.
11. The method of claim 2 , wherein the tag is of a preselected color and said colored tag is coated with a material which is activated by any one of water and body sweat whereby the coated material reacts with the tag to visibly change the color to provide the visual indicator of use.
12. A garment having an indicator tag integrated therewith wherein the indicator tag is positioned such that when the garment is worn or cleaned it comes into contact with a material which reacts therewith to provide a visual indication of the garment having been worn or cleaned.
13. The garment of claim 12 , the indicator tag including a detection element which comprises a visual indicator effective to indicate when said tag element has contacted one or more of human sweat, clothing garment cleaning materials, and human excretions which produce indicative odors.
14. The garment of claim 13 , wherein the visual indicator is structured to provide visual indication of the wearing of the garment by a human and which comprises one or more of water-based ink, material which disintegrates or is altered upon contact with sweat or water, and dry cleaning materials.
15. The garment of claim 14 , wherein the visual indication is in the form of a color change of at least a portion of the area on the indicator tag.
16. A garment with an indicator tag thereon wherein the garment is a shoe and the indicator tag comprises a rub-off wear indicator constructed to be indicatively visible with a predetermined amount of wearing use.
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US11/850,973 US20090064919A1 (en) | 2007-09-06 | 2007-09-06 | Indication tags |
Applications Claiming Priority (1)
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US11/850,973 US20090064919A1 (en) | 2007-09-06 | 2007-09-06 | Indication tags |
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US20090064919A1 true US20090064919A1 (en) | 2009-03-12 |
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US11/850,973 Abandoned US20090064919A1 (en) | 2007-09-06 | 2007-09-06 | Indication tags |
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Cited By (30)
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US20100071109A1 (en) * | 2008-09-23 | 2010-03-25 | Greg Gibson | Apparel Article with Integral Pre-Worn Design Elements |
USD618358S1 (en) | 2007-04-09 | 2010-06-22 | Tyco Healthcare Group Lp | Opening in an inflatable member for a pneumatic compression device |
US7871387B2 (en) | 2004-02-23 | 2011-01-18 | Tyco Healthcare Group Lp | Compression sleeve convertible in length |
US20110010970A1 (en) * | 2009-07-17 | 2011-01-20 | Nancy Ellen Sliwa | Systems and methods for tracking clothing usage |
US8016779B2 (en) | 2007-04-09 | 2011-09-13 | Tyco Healthcare Group Lp | Compression device having cooling capability |
US8021388B2 (en) | 2007-04-09 | 2011-09-20 | Tyco Healthcare Group Lp | Compression device with improved moisture evaporation |
US8029450B2 (en) | 2007-04-09 | 2011-10-04 | Tyco Healthcare Group Lp | Breathable compression device |
US8029451B2 (en) | 2005-12-12 | 2011-10-04 | Tyco Healthcare Group Lp | Compression sleeve having air conduits |
US8034007B2 (en) | 2007-04-09 | 2011-10-11 | Tyco Healthcare Group Lp | Compression device with structural support features |
US8070699B2 (en) | 2007-04-09 | 2011-12-06 | Tyco Healthcare Group Lp | Method of making compression sleeve with structural support features |
US8109892B2 (en) | 2007-04-09 | 2012-02-07 | Tyco Healthcare Group Lp | Methods of making compression device with improved evaporation |
US8114117B2 (en) | 2008-09-30 | 2012-02-14 | Tyco Healthcare Group Lp | Compression device with wear area |
US8128584B2 (en) | 2007-04-09 | 2012-03-06 | Tyco Healthcare Group Lp | Compression device with S-shaped bladder |
US8162861B2 (en) | 2007-04-09 | 2012-04-24 | Tyco Healthcare Group Lp | Compression device with strategic weld construction |
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US8506508B2 (en) | 2007-04-09 | 2013-08-13 | Covidien Lp | Compression device having weld seam moisture transfer |
US8529384B2 (en) | 2011-02-25 | 2013-09-10 | Shoot The Moon Products Ii, Llc | Marker tag darts, dart guns therefor, and methods |
US8652079B2 (en) | 2010-04-02 | 2014-02-18 | Covidien Lp | Compression garment having an extension |
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US9205021B2 (en) | 2012-06-18 | 2015-12-08 | Covidien Lp | Compression system with vent cooling feature |
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US10378875B2 (en) | 2016-11-07 | 2019-08-13 | Jonathan Cranin | Performance gauge for fabric and cushioning material |
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US7871387B2 (en) | 2004-02-23 | 2011-01-18 | Tyco Healthcare Group Lp | Compression sleeve convertible in length |
US9364037B2 (en) | 2005-07-26 | 2016-06-14 | Covidien Ag | Limited durability fastening for a garment |
US8029451B2 (en) | 2005-12-12 | 2011-10-04 | Tyco Healthcare Group Lp | Compression sleeve having air conduits |
US9387146B2 (en) | 2007-04-09 | 2016-07-12 | Covidien Lp | Compression device having weld seam moisture transfer |
US8162861B2 (en) | 2007-04-09 | 2012-04-24 | Tyco Healthcare Group Lp | Compression device with strategic weld construction |
US8016779B2 (en) | 2007-04-09 | 2011-09-13 | Tyco Healthcare Group Lp | Compression device having cooling capability |
US8021388B2 (en) | 2007-04-09 | 2011-09-20 | Tyco Healthcare Group Lp | Compression device with improved moisture evaporation |
US8029450B2 (en) | 2007-04-09 | 2011-10-04 | Tyco Healthcare Group Lp | Breathable compression device |
US8740828B2 (en) | 2007-04-09 | 2014-06-03 | Covidien Lp | Compression device with improved moisture evaporation |
US8034007B2 (en) | 2007-04-09 | 2011-10-11 | Tyco Healthcare Group Lp | Compression device with structural support features |
US8070699B2 (en) | 2007-04-09 | 2011-12-06 | Tyco Healthcare Group Lp | Method of making compression sleeve with structural support features |
US8109892B2 (en) | 2007-04-09 | 2012-02-07 | Tyco Healthcare Group Lp | Methods of making compression device with improved evaporation |
US8721575B2 (en) | 2007-04-09 | 2014-05-13 | Covidien Lp | Compression device with s-shaped bladder |
US8128584B2 (en) | 2007-04-09 | 2012-03-06 | Tyco Healthcare Group Lp | Compression device with S-shaped bladder |
US8016778B2 (en) | 2007-04-09 | 2011-09-13 | Tyco Healthcare Group Lp | Compression device with improved moisture evaporation |
USD618358S1 (en) | 2007-04-09 | 2010-06-22 | Tyco Healthcare Group Lp | Opening in an inflatable member for a pneumatic compression device |
US9114052B2 (en) | 2007-04-09 | 2015-08-25 | Covidien Lp | Compression device with strategic weld construction |
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