TWI759106B - 傷口治療系統 - Google Patents
傷口治療系統 Download PDFInfo
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- TWI759106B TWI759106B TW110105152A TW110105152A TWI759106B TW I759106 B TWI759106 B TW I759106B TW 110105152 A TW110105152 A TW 110105152A TW 110105152 A TW110105152 A TW 110105152A TW I759106 B TWI759106 B TW I759106B
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Abstract
本發明係有關於一種傷口治療系統,其包含一傷口敷料,一負壓源,一發光裝置,一影像辨識模組,以及一控制模組。傷口敷料包含一具有開口之殼體,及一具有管狀通道之阻隔層將殼體內部與開口分隔形成一容受空間。負壓源流體連接該傷口敷料以移除傷口的組織液。發光裝置設置於容受空間並與阻隔層光學耦接,且可發出不同波段光線,作為設置於傷口敷料殼體之開口一側之影像辨識模組所需之檢測光線,與提供傷口不同階段所需特定的光療波長。再經控制模組加以運算與判斷後,即可自動提供具備不同階段傷口所需的光療波長及適當負壓的輔助癒合環境。
Description
本發明是有關於一種用於慢性傷口的治療系統,其具有針對慢性傷口不同復原階段,使傷口處形成不同波長光療及負壓治療環境之效果。
身體的傷口自然癒合是一個自損傷時即開始作用的複雜過程。一般可分為止血、發炎、增生與重塑四個時期。在止血期階段,身體通過經由血液流向傷口遞送蛋白質和其他凝血物質,以使傷害降至最低,並形成血液凝塊以防止失血。在發炎時期階段,人體的免疫系統抵抗外來細菌及微生物入侵,白血球吞噬受傷處的細菌和殘骸,使傷口出現輕微紅、腫、熱、痛的發炎反應。最後才進入微血管、肉芽組織增生的增生期,及收口癒合的表皮組織重塑期。
然而,對於糖尿病患的傷口、壓瘡或末梢循環不良所產生的潰瘍等慢性傷口,往往並非遵循既定時期階段癒合,反而呈現於發炎與增生階段之間反覆感染,而難以收口進入後續重塑期。治療此類慢性傷口,已知可
藉由於傷口處形成負壓環境移除多餘的組織液,請參考第1圖,其為習知用於負壓治療系統之傷口敷料示意圖,該傷口敷料1包含一傷口接觸層12,用於覆蓋一傷口15;一吸收層13,用於吸收傷口15產生的組織液;以及一阻水層14,包覆於吸收層13外部,避免組織液滲透與外界接觸。再通過一導管11與一負壓源(未示於圖中)流體連接以輸送負壓力至傷口敷料1及吸附多餘的組織液,使傷口維持必要的濕潤環境而不產生浸潤現象。但慢性傷口即使在負壓環境與敷料覆蓋下,仍無法維持無菌環境,因此,還需仰賴病患自體免疫力或施加抗生素以抑制入侵細菌,且為了維持必要的濕潤環境,組織液中的養分亦可能增進微生物的滋長,影響傷口復原進程。因此,較佳地還需額外抑菌且可增加細胞增生效率的輔助方式。
故本發明之發明人提出一種傷口治療系統,其可結合負壓治療及光療的方式,並使不易癒合的慢性傷口依照所處階段,自動調控並提供適當的負壓壓力及照射波長,以進一步幫助傷口癒合。
有鑑於上述習知技藝之問題,本發明之目的在於提供一種具備新穎性、進步性及產業利用性等專利要件之傷口治療系統,以期克服現有產品之難點。
為達到上述目的,在一實施例之傷口治療系統中,
其包含:一傷口敷料,包含一具有開口之殼體,一傷口接觸層設置於該開口,以覆蓋於一傷口上,及一阻隔層將殼體內部與開口處之傷口接觸層分隔形成一容受空間;其中,該阻隔層包含至少一管狀通道,該管狀通道之一管口位於該容受空間側,該管狀通道之另一管口位於該傷口接觸層側;一負壓源,包含一負壓輸送導管與該傷口敷料殼體之容受空間流體連接,用以經由該負壓輸送導管施加一負壓於傷口,使傷口所滲出之組織液可透過該傷口接觸層並經由該管狀通道至該容受空間;一發光裝置,該發光裝置設置於該傷口敷料之容受空間,並光學耦接至該阻隔層,且可發出一第一波段光線及一第二波段光線;一影像辨識模組,該影像辨識模組設置於該傷口敷料殼體之開口一側,以接收該發光裝置所發出之該些光線照射於該傷口所反射之影像光線;以及一控制模組,該控制模組係電性連接該負壓源、發光裝置及該影像辨識模組。
在另一實施例之傷口治療系統中,該傷口敷料之容受空間包含一吸收層,且該負壓輸送導管更具有一阻水透氣層,以避免組織液進入該負壓源。
在另一實施例之傷口治療系統中,該傷口敷料與該負壓源間進一步包含一儲液裝置,並藉由該負壓輸送導管分別與該傷口敷料殼體之容受空間及該負壓源流體連接。
在另一實施例之傷口治療系統中,該發光裝置之
第一波段光線之波長係介於350nm至500nm,第二波段光線之波長係介於600nm至850nm。
在另一實施例之傷口治療系統中,該發光裝置可發出一第三波段光線,該第三波段光線之波長係介於500nm至600nm。
在另一實施例之傷口治療系統中,該發光裝置係以序列方式或混光方式發出該第一波段光線、該第二波段光線及該第三波段光線。
在另一實施例之傷口治療系統中,該發光裝置係為一點光源陣列。
在另一實施例之傷口治療系統中,該發光裝置之驅動方式係為恆壓或恆電流。
在另一實施例之傷口治療系統中,該影像辨識模組包含:一接收單元,用以接收該發光裝置所發出之光線以形成一傷口即時影像;以及一輸出單元,用以傳輸該傷口即時影像至該控制模組。
在另一實施例之傷口治療系統中,該控制模組包含:一驅動單元,用以驅動該負壓源、該發光裝置及該影像辨識模組;一儲存單元,用以儲存一包含複數個傷口影像資料之資料庫;以及一運算單元,用以接收該傷口即時影像並比對儲存單元之資料庫中的該些傷口影像資料後,運算判斷傷口階段並輸出訊號至該驅動單元。
1、2:傷口敷料
11、31:導管
12、22:傷口接觸層
13、26:吸收層
14:阻水層
15、25:傷口
2a:開口
2b:容受空間
21:殼體
23:阻隔層
23a:管狀通道
3:負壓源
31:負壓輸送導管
32:阻水透氣層
33:儲液裝置
4:發光裝置
5:影像辨識模組
51:接收單元
52:輸出單元
6:控制模組
61:驅動單元
62:儲存單元
63:運算單元
S1、S2、S3、S4、S41、S5、S51、S6:步驟
第1圖:係為習知用於負壓治療系統之傷口敷料之示意圖。
第2圖:係為本發明之傷口治療系統一實施例之示意圖。
第3A圖:係為本發明之傷口治療系統之傷口敷料一實施例之示意圖。
第3B圖:係為本發明之傷口治療系統之傷口敷料另一實施例之示意圖。
第4圖:係為本發明之傷口治療系統另一實施例之示意圖。
第5圖:係為本發明之傷口治療系統中之發光裝置一實施例之示意圖。
第6圖:係為本發明之傷口治療系統另一實施例之示意圖。
第7圖:係依照本發明之傷口治療系統一實施例之實施方式流程圖。
為使本發明之發明特徵、內容與優點及其所能達成之功效更易瞭解,茲將本發明配合附圖,並以實施例之表達形式詳細說明如下,而其中所使用之圖式,其主旨僅為示意及輔助說明書之用,未必為本發明實施後之
真實比例與精準配置,故不應就所附之圖式的比例與配置關係解讀、侷限本發明於實際實施上的權利範圍,合先敘明。
以下將參照相關圖式,說明依本發明之傷口治療系統之實施例,為使便於理解,下述實施例中之相同元件係以相同之符號標示來說明。
請配合一併參看第2圖及第3A圖所示,在一實施例之傷口治療系統中,該傷口治療系統包含:一傷口敷料2,包含一具有開口2a之殼體21,一傷口接觸層22設置於該開口2a,以覆蓋於一傷口25上,及一阻隔層23將殼體21內部與開口2a處之傷口接觸層22分隔形成一容受空間2b;其中,該阻隔層23包含至少一管狀通道23a,該管狀通道23a之一管口位於該容受空間2b側,該管狀通道23a之另一管口位於該傷口接觸層22側;一負壓源3,包含一負壓輸送導管31與該傷口敷料殼體21之容受空間2b流體連接,用以經由該負壓輸送導管31施加一負壓於傷口25,使傷口25所滲出之組織液可透過該傷口接觸層22並經由該管狀通道23a至該容受空間2b;一發光裝置4,該發光裝置4設置於該傷口敷料2之容受空間2b,並光學耦接至該阻隔層23,且可發出一第一波段光線及一第二波段光線;一影像辨識模組5,該影像辨識模組5設置於該傷口敷料殼體21之開口2a一側,以接收該發光裝置4所發出之該些光線照射於該傷口25所反射之影像光線;以及一控
制模組6,該控制模組6係電性連接該負壓源3、發光裝置4及該影像辨識模組5。
請參看第3B圖所示,在另一實施例之傷口治療系統中,該傷口敷料2之容受空間2b包含一吸收層26,例如填充習知聚合物纖維、纖維海棉、泡沫材料、超級吸收聚合物、水凝膠材料或凝膠材料等材料於容受空間2b中以作為吸收層26吸附並儲存組織液,且該負壓輸送導管31更具有一阻水透氣層32,例如以聚乙烯、聚丙烯、聚乙烯醇、聚乙酸乙烯酯、聚四氟乙烯、聚偏二氟乙烯、聚乙烯基吡咯啶酮、聚胺基甲酸酯、聚醯胺、聚酯、聚丙烯酸酯、聚甲基丙烯酸酯或聚丙烯醯胺等材料加工所製得之水蒸氣傳遞膜或高分子微孔膜,以避免組織液經由負壓吸引進入該負壓源3造成損壞及汙染。
請參看第4圖所示,在另一實施例之傷口治療系統中,該傷口敷料2與該負壓源3間進一步包含一儲液裝置33,並藉由該負壓輸送導管31分別與該傷口敷料殼體21之容受空間2b及該負壓源3流體連接,以視傷口25情況吸收多餘且大量的組織滲液,並進一步避免組織液吸附儲存於傷口25附近時,因滋生細菌增加感染機率,或因堵塞使負壓分佈不均或傳送效率不佳。
該阻隔層23之材料包括但不限於聚烯烴、聚乙酸乙烯酯、聚乙烯基吡咯啶酮、聚胺基甲酸酯、聚醯胺、聚酯、聚丙烯酸酯、聚甲基丙烯酸酯或聚碳酸酯等阻水材料。且為了與發光裝置4光學耦合而不影響透光度及
產生色偏,較佳為採用無著色之透明材料。傷口接觸層22為了不過度刺激傷口25並使組織液順利通過該阻隔層23上之管狀通道23a進入容受空間2b,通常採用具有實體孔洞之軟性高分子纖維、矽膠、水凝膠等材料,故再藉由適當調整該些材料之折射率,使與阻隔層23折射率匹配,即可使光學耦接至阻隔層23之發光裝置4所發出的不同波段光線更佳傳導至傷口25,作為輔助治癒的光療光線,並可被設置於該傷口敷料殼體21之開口2a一側之該影像辨識模組5接收該發光裝置4所發出之該些光線照射於該傷口25所反射之影像光線,形成一傷口即時影像用以判斷傷口25的情況。
在另一實施例之傷口治療系統中,該發光裝置4之第一波段光線之波長係介於350nm至500nm之藍光波段,第二波段光線之波長係介於600nm至850nm之紅光至近紅外光波段。習知紅光至近紅外光波段對於在傷口25癒合中扮重要角色的成纖維細胞具刺激效果而可提高增生效率。藍光波段則已知可降低常見存在於傷口25造成發炎的綠膿桿菌等細菌的平均存活率。
在另一實施例之傷口治療系統中,該發光裝置4進一步還可發出一第三波段光線,該第三波段光線之波長係介於500nm至600nm之綠光波段。雖然綠光並無輔助傷口25癒合功效,但藉由該綠光波段搭配既有的紅光及藍光波段仍可形成可見光全波段,使得影像辨識模組5可更佳地形成傷口即時影像以提供控制模組進行比
對,例如藉由含氧充血程度佳的鮮紅肉芽組織、發炎死亡的黃白細胞組織及壞死的黑色焦痂等之傷口25不同顏色及在傷口25中之各區域佔比,更加精準判斷傷口25處於何種癒合階段。且該發光裝置4可以序列方式分別發出該第一波段光線、該第二波段光線及該第三波段光線,獲得較無干擾的各單光傷口即時影像再加以重組為全可見光譜影像,或可以混光方式直接快速獲得全彩傷口即時影像。
請參看第5圖所示,在另一實施例之傷口治療系統中,該發光裝置4係為一點光源陣列,該點光源陣列例如可為經過封裝阻水氧穿透之複數個單光雷射、發光二極體或有機發光二極體所組成。故較易與阻隔層23交錯設置而不影響負壓治療效果。且因該些激發光源非單一全可見光波段光源,可更容易獲得半峰全寬(Full width at half maximum,FWHM)較窄之純色光源,並可依照對於不同面積、深度的傷口影像,設計較佳辨識率的點光源陣列排列組合方式,以被影像辨識模組5所接收重組為高解析傷口即時影像。
在另一實施例之傷口治療系統中,該發光裝置4可採用在液晶顯示器背光領域成熟之區域調光技術,藉由恆壓或恆電流的驅動方式形成穩定光照度之光源,以進行光療或形成傷口即時影像。然而,該發光裝置4於光療階段之輻照度較佳係介於5mW/cm2至25mW/cm2,並使照射能量密度係介於1J/cm2至
5J/cm2,以提供適當的治療強度,並避免過度刺激無外皮保護之傷口組織。
請參看第6圖所示,在另一實施例之傷口治療系統中,該影像辨識模組5包含:一接收單元51,用以接收該發光裝置4所發出之光線以組成一傷口即時影像;以及一輸出單元52,用以傳輸該即時傷口即時影像至該控制模組6。
在另一實施例之傷口治療系統中,該控制模組6包含:一驅動單元61,用以驅動該負壓源3、該發光裝置4及該影像辨識模組5;一儲存單元62,用以儲存一包含複數個傷口影像資料之資料庫;以及一運算單元63,用以接收來自該影像辨識模組5之該傷口即時影像,並比對儲存單元62之資料庫中的該些傷口影像資料後,運算判斷傷口階段並輸出訊號至該驅動單元61。
請配合一併參看第6圖與第7圖所示,第7圖係繪示依照本發明之傷口治療系統一實施例之實施方式流程圖。
步驟S1中,控制模組6之驅動單元61驅動該發光裝置4發出各波段光線,例如第一波段光線與第二波段光線,以提供該影像辨識模組5光源。
步驟S2中,控制模組6之驅動單元61驅動該影像辨識模組5,由接收單元51接收該發光裝置4所發出光源並形成傷口之即時影像,再藉由輸出單元52傳輸該傷口即時影像至該控制模組6。
步驟S3中,控制模組6藉由運算單元63,比對該傷口即時影像與儲存單元62之該資料庫中的該些傷口影像資料後,判斷現行傷口所屬癒合階段屬於發炎期、增生期或已癒合,並輸出相應訊號至該驅動單元61。
步驟S4中,當運算單元63判斷該傷口即時影像特徵符合資料庫中的該些傷口影像資料中的發炎期傷口特徵,驅動單元61驅動該發光裝置4發出藍光之第一波段光線進行抑菌,且驅動負壓源3提供一第一壓力至傷口敷料2。
步驟S41中,步驟S4中的光線及負壓值將維持並持續至一符合發炎期之預設第一療程週期結束,再次重複步驟S1,以判斷傷口經過第一療程週期後是否改善或需再次進行二次第一療程週期。
步驟S5中,當運算單元63判斷該傷口即時影像特徵符合儲存單元62之資料庫中的該些傷口影像資料中的增生期傷口特徵,驅動單元61驅動該發光裝置4發出紅光至近紅外光之第二波段光線輔助成纖維細胞增生,且驅動負壓源3提供一第二壓力至傷口敷料2。因一般增生期較無發炎現象所產生之膿液,故第二壓力通常可小於發炎期所需之第一壓力,以最大限度減低患者傷口之不適。
步驟S51中,步驟S5中的光線及負壓值將維持並持續至一符合增生期之預設第二療程週期結束,再
次重複步驟S1,以判斷傷口經過第二療程週期後是否改善、感染或需再次進行二次第二療程週期。
步驟S6中,當運算單元63判斷該傷口即時影像特徵癒合程度已符合儲存單元62之資料庫中的該些傷口影像資料中的癒合傷口特徵,則結束整個傷口治療系統之療程。
以上所述之實施例僅係為說明本發明之技術思想及特點,其目的在使熟習此項技藝之人士能夠瞭解本發明之內容並據以實施,當不能以之限定本發明之專利範圍,即大凡依本發明所揭示之精神所作之均等變化或修飾,仍應涵蓋在本發明之專利範圍內。
2:傷口敷料
3:負壓源
4:發光裝置
5:影像辨識模組
6:控制模組
Claims (10)
- 一種傷口治療系統,其包含: 一傷口敷料,包含一具有開口之殼體,一傷口接觸層設置於該開口,以覆蓋於一傷口上,及一阻隔層將殼體內部與開口處之傷口接觸層分隔形成一容受空間;其中,該阻隔層包含至少一管狀通道,該管狀通道之一管口位於該容受空間側,該管狀通道之另一管口位於該傷口接觸層側;一負壓源,包含一負壓輸送導管與該傷口敷料殼體之容受空間流體連接,用以經由該負壓輸送導管施加一負壓於傷口,使傷口所滲出之組織液可透過該傷口接觸層並經由該管狀通道至該容受空間; 一發光裝置,該發光裝置設置於該傷口敷料之容受空間,並光學耦接至該阻隔層,且可發出一第一波段光線及一第二波段光線; 一影像辨識模組,該影像辨識模組設置於該傷口敷料殼體之開口一側,以接收該發光裝置所發出之該些光線照射於該傷口所反射之影像光線;以及 一控制模組,該控制模組係電性連接該負壓源、發光裝置及該影像辨識模組。
- 如申請專利範圍第1項所述之傷口治療系統,其中該傷口敷料之容受空間包含一吸收層,且該負壓輸送導管更具有一阻水透氣層,以避免組織液進入該負壓源。
- 如申請專利範圍第1項所述之傷口治療系統,其中該傷口敷料與該負壓源間進一步包含一儲液裝置,並藉由該負壓輸送導管分別與該傷口敷料殼體之容受空間及該負壓源流體連接。
- 如申請專利範圍第1項所述之傷口治療系統,其中該發光裝置之第一波段光線之波長係介於350nm至500nm,第二波段光線之波長係介於600nm至850nm 。
- 如申請專利範圍第4項所述之傷口治療系統,其中該發光裝置可發出一第三波段光線,該第三波段光線之波長係介於500nm至600nm。
- 如申請專利範圍第5項所述之傷口治療系統,其中該發光裝置係以序列方式或混光方式發出該第一波段光線、該第二波段光線及該第三波段光線。
- 如申請專利範圍第1項所述之傷口治療系統,其中該發光裝置係為一點光源陣列。
- 如申請專利範圍第1項所述之傷口治療系統,其中該發光裝置之驅動方式係為恆壓或恆電流。
- 如申請專利範圍第1項所述之傷口治療系統,其中該影像辨識模組包含: 一接收單元,用以接收該發光裝置所發出之光線以形成一傷口即時影像;以及 一輸出單元,用以傳輸該傷口即時影像至該控制模組。
- 如申請專利範圍第9項所述之傷口治療系統,其中該控制模組包含: 一驅動單元,用以驅動該負壓源、該發光裝置及該影像辨識模組; 一儲存單元,用以儲存一包含複數個傷口影像資料之資料庫;以及 一運算單元,用以接收來自該影像辨識模組之該傷口即時影像並比對儲存單元之資料庫中的該些傷口影像資料後,經運算判斷傷口階段並輸出訊號至該驅動單元。
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US17/457,432 US20220249293A1 (en) | 2021-02-09 | 2021-12-02 | Wound treatment system |
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WO2009151645A2 (en) * | 2008-06-13 | 2009-12-17 | Premco Medical Systems, Inc. | Wound treatment apparatus and method |
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