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不是肌少症 婦瓶蓋扭不開 醫:1關節退化了

拇指腕掌關節炎患者,在做扭瓶蓋等動作時,常會因疼痛而難以施力。(示意圖/AI生成)

The horn antenna has a distinctive design that is enlarged towards the end. Horn antennas typically feature a directional radiation pattern with a high antenna gain of 10-20 dBi, some antennas have a higher gain such as the standard horn antenna up to 25 dBi. Horn antennas feature a low VSWR and a wide impedance bandwidth.

Double Ridged Horn Antennas are very popular from 200 MHz frequency to higher frequencies up to 40GHz. We have recently extended the usage frequency of this antenna up to 60 GHz.

This antenna's operating frequency has recently been increased to 60 GHz. The research process for the product line is still ongoing but is planned to be completed this year. To receive the most recent price and technical information on the new product, please contact us for more information.

Double Ridged Horn Antennas are suitable for both transmitting and receiving purposes, with applications:

  • - Antenna measurement
  • - Communication systems
  • - Satellite tracking systems
  • - Radar Detection System
  • - Surveillance System
  • - Electromagnetic Compatibility Testing (EMC test)

Recommended Accessories

  • Antenna Tripod: easy and fast-changing position. 100% stable after installing.
  • SMA Cable: High-quality special SMA cable

Learn More 

SUMMARY TABLE OF DOUBLE-RIDGED HORN ANTENNA (HA-SERIES) 

拇指腕掌關節炎患者,在做扭瓶蓋等動作時,常會因疼痛而難以施力。(示意圖/AI生成)
字級設定:

50歲的張女士是位花藝設計師,近幾年,她發現左手拇指靠近手腕關節的地方越來越痛,尤其要扭瓶蓋或抓握物品時,常痛到難以使力,嚴重影響生活品質,輾轉到高雄榮總手外科門診就醫,確診是拇指腕掌關節炎,置換人工關節後終於改善。醫師提醒,民眾若有拇指根部腫脹或變形、扭瓶蓋時明顯疼痛、抓握力下降,有可能是罹患姆指腕掌關節炎,要及早就醫。

手外科醫學會監事、高雄榮總骨病科主任陳俊宇表示,拇指腕掌關節炎又稱為基底關節骨關節炎,病因主要與長期過度使用拇指,導致關節退化有關,其影響的是拇指底部的腕掌關節(第一掌骨與腕骨之間的關節),這個關節負責拇指的廣泛活動,像抓握、捏夾和扭轉等動作,都有它的重要角色。

張女士手術前左手拇指腕掌關節空隙已經消失(左圖黃色剪箭頭處)。左手拇指的腕掌關節空隙(右圖黃圈處)相對於右手已經嚴重關節退化。(圖/陳俊宇醫師提供)
張女士手術前左手拇指腕掌關節空隙已經消失(左圖黃色剪箭頭處)。左手拇指的腕掌關節空隙(右圖黃圈處)相對於右手已經嚴重關節退化。(圖/陳俊宇醫師提供)

陳俊宇表示,隨著年齡增長,拇指腕掌關節炎發生率也越高,年逾50歲以上的女性是好發族群,隨著拇指腕掌關節軟骨的磨損,患者可能會感覺患部疼痛、僵硬、大拇指做動作時,有摩擦、喀拉聲響,特別是要做到拇指出力的動作時,如開罐頭、轉動鑰匙、抓握物品,使用剪刀時,常痛到無法使力,嚴重影響生活品質。



文章來自: https://www.chinatimes.com/realtimenews/20250108000010-260418

Fei Teng Wireless Technology Co. Ltd

Taiwan Head Office & Manufacturer:

No.369, Sec. Litoushan, Wenshan Rd., Xinpu Township, Hsinchu County 305, Taiwan (R.O.C.) MAP

Tel:  886-3-5882899

Fax: 886-3-5882879

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