TW202416922A

TW202416922A - Rollover pad

Info

Publication number: TW202416922A
Application number: TW111140134A
Authority: TW
Inventors: 陳雅如; 任秀如; 張文蓓
Original assignee: 臺北醫學大學
Filing date: 2022-10-21
Publication date: 2024-05-01

Abstract

The present invention relates to a rollover pad，which comprises: a pad body, which comprises an upper part, a body part and a lower part; the widths of the upper part, the body part and the lower part are equivalent, and the center of the upper part and the lower part is connected to the body part; two sides of the upper part are respectively defined as a upper lift area, both sides of the lower part are respectively defined as a lower lift area, both sides of the body are respectively defined as a joint area, A binding piece is arranged on the two joint areas , and when the two binding areas are overlapped, the binding piece can combine and fix the two binding areas; a first binding unit is arranged on the back of the pad body; a triangular pillow is a triangular column structure, a second combining unit is arranged on the outer side of the triangle pillow. The second combining unit can be combined with the first combining unit to adjust and fix the support angle and position of the triangle pillow on the back of the cushion body.

Description

翻身墊Turning mat

本發明係與一種醫療輔具有關，更特別是指一種可以協助側身及翻身時固定關節及控制翻身角度的翻身墊。The present invention relates to a medical auxiliary device, and more particularly to a turning pad which can help to fix joints and control the turning angle when turning sideways or turning over.

文獻指出，長照機構的住民因為骨質疏鬆症的骨折發生率約為1%，因為住民長期臥床、行動不便、認知功能障礙、肌肉攣縮及骨質疏鬆等問題，而被視為骨折之高危險群，骨質疏鬆又是造成骨折之重要危險因子，隨著年齡的增加，發生機會也會顯著增加，而造成骨折的原因中有25%是因為翻身、轉位、洗澡等等一般生活照護過程中所導致的，而在床上翻身擺位更是機構工作人員最常執行的照護技術，由此可見翻身擺位安全照護的重要性，在進行翻身照顧時，常會使用一些輔助裝置來協助進行翻身擺位的動作，諸如翻身枕、移位轉移墊、滑布墊或是電動翻身墊等器材來進行協助翻身的動作。Literature indicates that the incidence of osteoporosis fractures among residents of long-term care institutions is about 1%. Residents are considered a high-risk group for fractures due to long-term bed rest, mobility problems, cognitive impairment, muscle contracture, and osteoporosis. Osteoporosis is an important risk factor for fractures. The chance of fracture increases significantly with age. 25% of fractures are caused by turning over, It is caused by general life care processes such as turning over, bathing, etc., and turning over in bed is the most commonly performed care technique by institutional staff. This shows the importance of safe turning over care. When performing turning over care, some auxiliary devices are often used to assist in turning over and positioning, such as turning pillows, shifting transfer pads, sliding pads or electric turning pads to assist in turning over.

然而，習知的輔助裝置都會有一些使用上的不便，使用翻身枕時，其僅能對於局部的肢體進行位置的變化，無法產生一個較全面的翻身移動的動作；另外，移位轉移墊跟滑布墊皆為一墊體結構，適合用來協助移轉位置之用，但是要協助側身或變化姿勢時，只能透過使用者來翻動墊體來作姿勢的變化，除了無法固定之外，位置也無法準確地調整到正確的位置，無法達到翻身的目的；而電動翻身墊具有多個調整塊，可以透過不同的調整塊的位置的變化而產生有適當位置的翻身作用，但是因為電動翻身墊的體積較大，並且造價高昂，使用上並不容易普及。However, the conventional assistive devices all have some inconveniences in use. When using a turning pillow, it can only change the position of a local limb, and cannot produce a more comprehensive turning movement. In addition, the shifting transfer pad and the sliding cloth pad are both a pad structure, which is suitable for assisting the use of shifting positions, but when assisting with turning sideways or changing postures, the user can only turn the pad to change the posture. In addition to being unable to fix, the position cannot be accurately adjusted to the correct position, and the purpose of turning over cannot be achieved. The electric turning pad has a plurality of adjustment blocks, which can produce a turning effect with a proper position by changing the positions of different adjustment blocks, but because the electric turning pad is large in size and expensive, it is not easy to popularize in use.

世界衛生組織（WHO）在2016年發佈的研究結果顯示，臺灣男性平均身高174.5公分、女性161.5公分，平均身高為168公分，本發明依此設計為長度與寬度均為140公分之翻身墊，並以人體比例設計有特定部位為可固定肩關節、髖關節與膝關節。依此，本發明係提供一種翻身墊，其係包含有；一墊體，其係包含有一上部、一身部及一下部；該上部、身部及下部之寬部相當，且該上部與該下部之中央與該身部相連接；該上部之兩側係分別界定為一上提區，該下部之兩側係分別界定為一下提區，該身部之兩側係分別界定為一結合區，該兩結合區上係設置有一結合件，該兩結合區重疊時，該結合件可以結合固定該兩結合區；該墊體背面並設置有一第一結合單元；以及，一三角枕，其係為一三角柱體結構，該三角枕外側係設置有一第二結合單元，該第二結合單元可與該第一結合單元相結合，可調整及固定該三角枕於該墊體背面的支撐角度以及位置。The research results published by the World Health Organization (WHO) in 2016 show that the average height of Taiwanese men is 174.5 cm, and that of women is 161.5 cm, with an average height of 168 cm. The present invention is accordingly designed as a turning mat with a length and width of 140 cm, and is designed with specific parts based on human body proportions to fix the shoulder joint, hip joint, and knee joint. Accordingly, the present invention provides a turning mat, which comprises: a mat body, which comprises an upper part, a body part and a lower part; the widths of the upper part, the body part and the lower part are equal, and the center of the upper part and the lower part is connected to the body part; the two sides of the upper part are respectively defined as a lifting area, the two sides of the lower part are respectively defined as a lower lifting area, and the two sides of the body part are respectively defined as a joining area, and a joining piece is provided on the two joining areas, and when the two joining areas overlap, the joining piece can join and fix the two joining areas; a first joining unit is provided on the back of the mat body; and, A triangular pillow is a triangular column structure. A second combining unit is arranged on the outer side of the triangular pillow. The second combining unit can be combined with the first combining unit to adjust and fix the supporting angle and position of the triangular pillow on the back of the cushion body.

本發明所提供之一種翻身墊，其墊體除了可以透過該上提區以及下提區來進行握持，讓使用者可以進行位移換位動作之外，該墊體上可以另外與該三角枕結合，使該三角枕可以固定於該墊體上，而產生有調整角度的效果，並且，可以調整該三角枕的位置以及角度，讓使用者可以產生有較佳的角度調整並估算翻身時間之效果，讓本翻身墊可以同時產生有位移換位及調整角度估算翻身時間之雙重作用者。The present invention provides a turning pad, in addition to being able to be held by the upper lifting area and the lower lifting area so that the user can perform displacement and position-changing actions, the pad can also be combined with the triangular pillow so that the triangular pillow can be fixed on the pad to produce an angle adjustment effect, and the position and angle of the triangular pillow can be adjusted so that the user can have a better angle adjustment and estimate the turning time effect, so that the turning pad can simultaneously produce the dual effects of displacement and position-changing and angle adjustment and turning time estimation.

請參閱圖1及圖2所示，其係為本發明所提供之一種較佳實施例之翻身墊，其係包含有；Please refer to FIG. 1 and FIG. 2 , which are a turning mat of a preferred embodiment of the present invention, which includes:

一墊體10，其係包含有一上部11、一身部12及一下部13；該上部11、身部12及下部13之寬度相當，其寬度為130cm-150cm之間，本實施例中係為140cm，且該上部11與該下部13之中央位置分別連接於該身部12之上方以及下方形成一體；該上部11之長度35cm-45cm之間，本實施例中係為39cm，該上部11兩側係分別界定為一上提區111，該下部13之長度為35cm-45cm之間，本實施例中係為39cm，該下部13之兩側係分別界定為一下提區131，該身部12之長度為55-65cm之間，本實施例中係為58cm，該身部12之兩側係分別界定為一結合區121，該兩結合區121上係設置有一結合件14，該結合件14係為魔鬼氈141所構成，其亦可為扣具或束帶等其他可以結合固定的結構所構成，並不限制，當該兩結合區121重疊時，該結合件14之魔鬼氈141可以結合固定該兩結合區121，使該兩結合區121可以形成環套固定；該上部11、身部12及該下部13的長度恰好可以對應到長者的肩膀以上位置，肩關節髖關節之間的距離以及大腿位置的距離而設置有符合人體工學的設置長度，另外，該墊體10的寬度也是符合人體工學的長度而設置，讓使用者可以使肩關節、髖關節包覆於該墊體10內，該墊體10並可使用透氣、抗菌的材質所構成者；該墊體10背面並設置有一第一結合單元15及兩握把16；該第一結合單元15係為三魔鬼氈151所構成，長度在70cm-90cm之間，本實施例中係為80cm；該等魔鬼氈151係間隔的設置於該墊體10的中央位置，並沿著該身部12之方向設置，使該身部12背部位置有該等第一結合單元15的設置，該兩握把16係設置於該第一結合單元15的兩側外側，可方便使用者施力提起該墊體10。A pad 10 includes an upper portion 11, a body portion 12 and a lower portion 13; the widths of the upper portion 11, the body portion 12 and the lower portion 13 are equal, and the widths are between 130cm and 150cm, and are 140cm in this embodiment, and the central positions of the upper portion 11 and the lower portion 13 are connected to the upper and lower parts of the body portion 12 to form a whole; the length of the upper portion 11 is between 35cm and 45cm, and is 39cm in this embodiment, and the two sides of the upper portion 11 are respectively defined as a lifting area 111, and the length of the lower portion 13 is 3 The length of the lower part 13 is between 55-45cm, and is 39cm in this embodiment. The two sides of the lower part 13 are respectively defined as a lower lifting area 131. The length of the body part 12 is between 55-65cm, and is 58cm in this embodiment. The two sides of the body part 12 are respectively defined as a joint area 121. A joint piece 14 is provided on the two joint areas 121. The joint piece 14 is composed of Velcro 141, which can also be composed of other structures that can be combined and fixed, such as buckles or straps, without limitation. When the two joint areas 121 overlap, the joint piece 1 The Velcro 141 of 4 can be combined and fixed to the two joint areas 121, so that the two joint areas 121 can form a ring fixation; the length of the upper part 11, the body part 12 and the lower part 13 can just correspond to the position above the shoulders of the elderly, the distance between the shoulder joint and the hip joint, and the distance between the thigh position, and are set to have an ergonomic length. In addition, the width of the pad 10 is also set to an ergonomic length, so that the user can cover the shoulder joint and hip joint in the pad 10. The pad 10 can also be made of breathable and antibacterial materials. The back of the pad 10 is provided with a first combining unit 15 and two handles 16; the first combining unit 15 is composed of three Velcros 151, and the length is between 70cm and 90cm, and is 80cm in this embodiment; the Velcros 151 are arranged at intervals in the center of the pad 10 and along the direction of the body 12, so that the first combining units 15 are arranged at the back of the body 12, and the two handles 16 are arranged on the outer sides of the two sides of the first combining unit 15, which can facilitate the user to apply force to lift the pad 10.

一三角枕20，其係為一三角柱體結構，其三邊的角度為30度、60度以及90度，該三角枕20具有三個表面21，該等表面21外側係設置有一第二結合單元22，該第二結合單元22為數魔鬼氈221可與該第一結合單元15相結合，該第二結合單元22係與該三角枕20的每一表面21上設置有兩魔鬼氈221，使其可與該第一結合單元15之該等魔鬼氈151相黏合，該三角枕20的長度為36cm-60cm之間，本實施例中係為50cm，該三角枕20可以調整其於該墊體10背面的支撐角度以及位置，並且透過該第二結合單元22與該第一結合單元15形成有良好的固定效果。A triangular pillow 20 is a triangular prism structure, and the angles of its three sides are 30 degrees, 60 degrees and 90 degrees. The triangular pillow 20 has three surfaces 21, and a second combining unit 22 is provided on the outer side of the surfaces 21. The second combining unit 22 is a plurality of Velcro 221 that can be combined with the first combining unit 15. The second combining unit 22 is provided with two Velcro 221 on each surface 21 of the triangular pillow 20, so that it can be bonded with the Velcro 151 of the first combining unit 15. The length of the triangular pillow 20 is between 36cm and 60cm, and is 50cm in this embodiment. The triangular pillow 20 can adjust its supporting angle and position on the back of the cushion 10, and a good fixing effect is formed through the second combining unit 22 and the first combining unit 15.

請參閱圖2及3所示，要調整使用者的翻身角度時，使用者可以施力提起該握把16，方便將該墊體10上提，將該墊體10上提後，可將該三角枕20***至該墊體10之下方，可以依照需求而設置於該身部12靠近該上部11的位置或身部12靠近下部13的位置，讓使用者可以對肩關節周邊或是髖關節周邊要調整翻身的角度都可以產生良好的固定效果，並且，透過該第一結合部15的魔鬼氈151的使用，可讓使用者選擇要往左邊或是往右邊來進行翻身的動作，並不會有方向性的問題。Please refer to FIGS. 2 and 3 . To adjust the turning angle of the user, the user can apply force to lift the handle 16 to facilitate lifting the pad 10. After lifting the pad 10, the triangular pillow 20 can be inserted under the pad 10. It can be set at the position of the body 12 close to the upper part 11 or the position of the body 12 close to the lower part 13 according to needs, so that the user can adjust the turning angle around the shoulder joint or the hip joint to produce a good fixing effect. In addition, through the use of the Velcro 151 of the first joint 15, the user can choose to turn over to the left or to the right without any directional problems.

同時，根據臨床研究文獻，為防止壓瘡，在 30° 傾斜位置時需要每 2 小時更換一次體位，在 0°仰臥時每 1.5 到 2 小時更換一次體位，對於所有其他體位至少每 1.5 小時更換一次體位。請參閱圖4所示，因為該三角枕20具有三種不同的角度以及表面21，並且該三角枕20的每一表面21上都具有該第二結合單元22的設置，所以使用者也可以依照需求來進行角度的調整，並且使用30度、60度及90度三種符合臨床研究上人體翻身的特定角度，可以讓使用者簡易快速估算較佳的翻身時間，以避免壓瘡。At the same time, according to clinical research literature, in order to prevent pressure sores, the body position needs to be changed every 2 hours when in a 30° tilted position, every 1.5 to 2 hours when lying on your back at 0°, and at least every 1.5 hours for all other positions. Please refer to FIG4 , because the triangular pillow 20 has three different angles and surfaces 21, and each surface 21 of the triangular pillow 20 has the second coupling unit 22, the user can also adjust the angle according to the needs, and use 30 degrees, 60 degrees and 90 degrees, three specific angles that meet the clinical research of human body turning over, so that the user can easily and quickly estimate the best turning time to avoid pressure sores.

再來，請參閱圖5所示，當要進行位置轉移的時候，可以先將該身部12兩側的結合區121重疊，並且將該結合區121上的結合件14，也就是魔鬼氈141進行環套固定，讓使用者的身軀位置，也就是肩關節到髖關節之間可以被固定於該墊體10的身部12位置，並且，將該上部11兩側的兩上提區111與該下部13兩側的兩下提區131靠攏，以方便手握持該兩上提區111以及該兩下提區131，並且可以讓使用者穩定的在該墊體10內進行位置的轉移，並且該兩上提區111以及該兩下提區131也方便使用者握持固定以及出力。在轉移過程中相當方便，而且轉換完成後，該墊體10可以直接墊設下方，不需取出，並且該墊體10具有透氣以及抗菌的效果，可以長時間使用。Next, please refer to FIG. 5 . When the position is to be transferred, the coupling areas 121 on both sides of the body 12 can be overlapped first, and the coupling parts 14 on the coupling areas 121, that is, the Velcro 141, can be fixed in a ring, so that the user's body position, that is, between the shoulder joint and the hip joint, can be fixed at the position of the body 12 of the pad 10, and the two upper lifting areas 111 on both sides of the upper part 11 and the two lower lifting areas 131 on both sides of the lower part 13 are close to each other, so that the hands can hold the two upper lifting areas 111 and the two lower lifting areas 131 conveniently, and the user can stably transfer the position in the pad 10, and the two upper lifting areas 111 and the two lower lifting areas 131 are also convenient for the user to hold and exert force. The transfer process is very convenient, and after the transfer is completed, the pad 10 can be directly placed underneath without being taken out. In addition, the pad 10 has breathable and antibacterial effects and can be used for a long time.

請參閱圖6及7所示，其係為本發明所提供之翻身墊之第二較佳實施例，其主要結構係與前一較佳實施例相同，相同之處不另贅述，其中；Please refer to Figures 6 and 7, which are the second preferred embodiment of the turning mat provided by the present invention. The main structure is the same as the previous preferred embodiment, and the similarities are not further described.

該三角枕20上的第二結合單元22係為三個片狀的魔鬼氈221所構成，魔鬼氈221係設置於該三角枕20之三側表面21上，同時，該第一結合單元15係為兩魔鬼氈151設置於該身部12位置，並沿著寬度方向設置；如此一來，該三角枕20的每一個表面21皆佈滿有該魔鬼氈221，當該三角枕20之任一表面21的任一位置與該墊體10的第一結合單元15的橫向設置的該兩魔鬼氈151相結合時，都可以完整的結合，不會因為需要遷就該第一結合單元15與第二結合單元22的設置位置而使該三角枕20擺放位置受到侷限。The second combining unit 22 on the triangular pillow 20 is composed of three sheet-shaped Velcro 221, and the Velcro 221 is arranged on the three side surfaces 21 of the triangular pillow 20. At the same time, the first combining unit 15 is two Velcro 151 arranged at the position of the body 12 and arranged along the width direction; in this way, each surface 21 of the triangular pillow 20 is covered with the Velcro 221, and when any position of any surface 21 of the triangular pillow 20 is combined with the two Velcro 151 arranged transversely of the first combining unit 15 of the cushion 10, they can be completely combined, and the placement position of the triangular pillow 20 will not be limited due to the need to adjust the setting positions of the first combining unit 15 and the second combining unit 22.

10 墊體 11 上部 111 上提區 12 身部 121 結合區 13 下部 131 下提區 14 結合件 141 魔鬼氈 15 第一結合單元 151 魔鬼氈 16 握把 20 三角枕 21 表面 22 第二結合單元 221 魔鬼氈 10 Pad 11 Upper part 111 Upper lifting area 12 Body 121 Joint area 13 Lower part 131 Lower lifting area 14 Joint piece 141 Velcro 15 First joint unit 151 Velcro

圖1係為本發明一較佳實施例之翻身墊之墊體及三角枕之分解圖。圖2係為本發明一較佳實施例之三角枕設置於墊體之位置示意圖。圖3係為本發明一較佳實施例之三角枕設置於墊體之另一位置示意圖。圖4係為本發明一較佳實施例之三角枕設置於墊體之角度示意圖。圖5係為本發明一較佳實施例之墊體包覆人體進行位置轉移之動作示意圖。圖6係為本發明第二較佳實施例之翻身墊之墊體及三角枕之分解圖。圖7係為本發明第二較佳實施例之三角枕設置於墊體之角度示意圖。 FIG. 1 is an exploded view of the pad and triangular pillow of a turning pad of a preferred embodiment of the present invention. FIG. 2 is a schematic diagram of the position of the triangular pillow of a preferred embodiment of the present invention set on the pad. FIG. 3 is a schematic diagram of another position of the triangular pillow of a preferred embodiment of the present invention set on the pad. FIG. 4 is a schematic diagram of the angle of the triangular pillow of a preferred embodiment of the present invention set on the pad. FIG. 5 is a schematic diagram of the action of the pad of a preferred embodiment of the present invention covering the human body for position transfer. FIG. 6 is an exploded view of the pad and triangular pillow of the turning pad of the second preferred embodiment of the present invention. FIG. 7 is a schematic diagram of the angle of the triangular pillow of the second preferred embodiment of the present invention set on the pad.

10:墊體 10: Pad

11:上部 11: Upper part

111:上提區 111: Shangti District

12:身部 12: Body

121:結合區 121: junction area

13:下部 13: Lower part

131:下提區 131: Xiati District

14:結合件 14:Joining parts

141:魔鬼氈 141: Velcro

15:第一結合單元 15: First binding unit

151:魔鬼氈 151: Velcro

16:握把 16: Grip

20:三角枕 20:Triangular pillow

21:表面 21: Surface

22:第二結合單元 22: Second binding unit

221:魔鬼氈 221: Devil’s Felt

Claims

一種翻身墊，其係包含有；一墊體，其係包含有一上部、一身部及一下部；該上部、身部及下部之寬度相當，且該上部與該下部之中央與該身部相連接；該上部之兩側係分別界定為一上提區，該下部之兩側係分別界定為一下提區，該身部之兩側係分別界定為一結合區，該兩結合區上係設置有一結合件，該兩結合區重疊時，該結合件可以結合固定該兩結合區；該墊體背面並設置有一第一結合單元；一三角枕，其係為一三角柱體結構，該三角枕外側係設置有一第二結合單元，該第二結合單元可與該第一結合單元相結合，可調整及固定該三角枕於該墊體背面的支撐角度以及位置。 A turning mat comprises: A mat body, comprising an upper part, a body part and a lower part; the widths of the upper part, the body part and the lower part are equal, and the center of the upper part and the lower part is connected to the body part; the two sides of the upper part are respectively defined as a lifting area, the two sides of the lower part are respectively defined as a lower lifting area, and the two sides of the body part are respectively defined as a joining area, and a joining piece is provided on the two joining areas, and when the two joining areas overlap, the joining piece can join and fix the two joining areas; a first joining unit is also provided on the back of the mat body; A triangular pillow is a triangular column structure. A second combining unit is provided on the outer side of the triangular pillow. The second combining unit can be combined with the first combining unit to adjust and fix the supporting angle and position of the triangular pillow on the back of the cushion body.

如請求項1所述之翻身墊，其中；該墊體的寬度為130cm-150cm之間。A turning mat as described in claim 1, wherein the width of the mat body is between 130 cm and 150 cm.

如請求項1所述之翻身墊，其中；該上部之高度為35cm-45cm之間，該身部之高度為55cm-65cm之間，該下部之高度為35cm-45cm之間。The turning mat as described in claim 1, wherein the height of the upper part is between 35cm and 45cm, the height of the body part is between 55cm and 65cm, and the height of the lower part is between 35cm and 45cm.

如請求項1所述之翻身墊，其中；該第一結合部單元係為三魔鬼氈所構成，間隔的設置於該墊體背部沿著該身部之中央位置；該三角枕上之第二結合單元係相對為數個魔鬼氈，該三角枕每一表面上設置有至少一該魔鬼氈，使該第二結合單元可與該第一結合單元相結合。The turning pad as described in claim 1, wherein: the first combining unit is composed of three Velcros, which are spaced apart on the back of the pad along the center of the body; the second combining unit on the triangular pillow is relatively composed of several Velcros, and at least one Velcro is arranged on each surface of the triangular pillow, so that the second combining unit can be combined with the first combining unit.

如請求項1所述之翻身墊，其中；該第一結合部單元係為兩魔鬼氈所構成，間隔的設置於該墊體背部沿著該身部寬度方向；該三角枕上之第二結合單元係相對為三個片狀魔鬼氈，該三角枕每一表面上設置有一該片狀魔鬼氈，使該第二結合單元可與該第一結合單元相結合。The turning pad as described in claim 1, wherein: the first combining unit is composed of two Velcros, which are spaced apart on the back of the pad along the width direction of the body; the second combining unit on the triangular pillow is relatively three sheet Velcros, and one sheet Velcro is arranged on each surface of the triangular pillow, so that the second combining unit can be combined with the first combining unit.

如請求項4所述之翻身墊，其中；該第一結合單元之長度為70cm-90cm之間。A turning mat as described in claim 4, wherein the length of the first combined unit is between 70cm and 90cm.

如請求項1或4所述之翻身墊，其中；該三角枕之長度係略大於該第一結合單元之長度之一半。A turning mattress as described in claim 1 or 4, wherein the length of the triangular pillow is slightly greater than half the length of the first combined unit.

如請求項5所述之翻身墊，其中；該三角枕之長度為36cm-60cm之間。The turning mattress as described in claim 5, wherein the length of the triangular pillow is between 36cm and 60cm.

如請求項1所述之翻身墊，其中；該三角枕之角度為30度、60度及90度。The turning mattress as described in claim 1, wherein the angles of the triangular pillow are 30 degrees, 60 degrees and 90 degrees.

如請求項1所述之翻身墊，其中；該墊體之背面兩側分別設置有一握把。A turning pad as described in claim 1, wherein a handle is provided on each of the two sides of the back of the pad.

如請求項１所述之翻身墊，其中；該身部之兩結合區上的結合件係為一魔鬼氈。A turning pad as described in claim 1, wherein the connecting parts on the two connecting areas of the body are Velcro.