TWI798399B - 用於醫療用途的靜脈內導管引入器 - Google Patents
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Abstract
一種用於醫療用途的靜脈內導管引入器,其具有:本體;前附件,其配置成橫向滑動接合於本體的前部;轂管總成,其由前附件可釋放地支撐;以及可回縮的導管插針和針座,其由從針軸所側向偏移的彈簧而往後偏壓,藉此在做血管插入後,本體相對於前附件的側向重新定位則使配置在本體裡的針回縮腔移動成大致同軸對齊,並且使針座回縮到針回縮腔中。
Description
本發明關於醫療裝置,更特別而言關於靜脈內(intravenous,IV)導管引入器,其具有本體、可選擇性回縮而往前突出的導管插針、及可拆卸的轂。
舉例而言,美國專利第5,817,058、5,779,679、5,989,220、6,210,371、6,872,193、7,740,615、及8,048,031號已經先前揭示了靜脈內導管引入器,其具有可回縮的針。此種裝置典型而言包括具有往前延伸之撓性導管的轂,針尖經由此而在針尖和導管插入靜脈的期間稍微突出。在插入後,針撤出或回縮到裝置的本體中,針然後與轂分開,而允許撓性導管維持定位在靜脈裡。當手動壓力施加到恰在導管尖端前方的靜脈以限制血液流動之時,另一注入線附接到轂以用於傳遞流體穿過導管並且進入病人的血管系統。
在導管插針的回縮期間,偏壓力典型而言施
加到針座以往後驅動或抽拉針到針回縮腔中,在此則針不再對照護工作者造成意外針刺傷害的風險。針回縮腔時常是同軸對齊於穿過插針和針座的縱軸。偏壓力舉例而言可以由操作成拉伸或壓縮的偏壓元件所施加,或者可以經由槓桿、導引或機械鏈結而手動施加,其使針座和插針從針尖往前突出穿過連接到導管轂之撓性導管的位置往後移動到導管引入器可以與導管轂分開而無受傷風險的回縮且更被保護的位置。
於許多此種裝置,線圈彈簧同軸對齊於針座的管狀軸桿部分並且配置在該部分周圍。在將往前突出的針引入病人的靜脈前,線圈彈簧保持成壓縮,並且使針相對於由針所帶入病人靜脈中的撓性導管而往後偏壓。在做血管插入後和在使用導管來注入流體前,釋放壓縮彈簧以將針座和針往後驅動到配置於裝置之本體的針回縮腔中。
包括具有同軸對齊的偏壓元件和可側向滑動的組件之可回縮針的其他醫療裝置舉例而言揭示於美國專利第9,138,545、9,302,055、9,308,353、9,320,469、9,381,309、及9,808,602號及美國專利公開案第2014/0171876、2016/0310057、2016/0317756號。於此種裝置,偏壓針的元件相信在針回縮前和在針回縮期間是同軸對齊於針和針座。
揭示的是IV導管引入器,其包括:本體;以
及導管插針,其由從導管插針所側向偏移的彈簧而往後偏壓。在做血管插入後,針的回縮則是由本體相對於導管插針的側向移動所啟動。
本發明的一實施例是IV導管引入器,其包括:本體;以及前附件,其配置在本體前面並且沿著橫向於穿過本體之縱軸的軸線而可滑動地接合本體。
本發明的一實施例是IV導管引入器,其包括:本體;前附件,其以橫向滑動關係而安裝於本體的前部;以及針轂,其由前附件可釋放地支撐。
本發明的一實施例是IV導管引入器,其包括:本體;前附件,其接合本體並且相對於本體而可側向移動;以及針座總成,其配置成縱向滑動接合於前附件且座落在前附件裡。
本發明的一實施例是IV導管引入器,其包括被壓縮彈簧往後偏壓的插針,該壓縮彈簧具有從穿過插針的縱軸而側向偏移的縱軸。
本發明的一實施例是IV導管引入器,其包括往前突出的針,該針被從穿過針之縱軸而側向偏移的彈簧往後偏壓,以便於在做血管插入後從病人撤出針。
本發明的一實施例是IV導管引入器,其包括針座總成,該針座總成進一步包括:基座;管狀針座,其從基座往前突出;插針,其以大致固定關係而配置於管狀針座且從管狀針座往前突出;大致圓柱形的彈簧柱,其與管狀針座呈平行且隔開關係而從基座往前突出;以及線圈
彈簧,其配置在彈簧柱周圍而在組裝期間是可壓縮的,以在插針回縮期間使針座的基座往後偏壓。
本發明的一實施例是IV導管引入器,其包括可選擇性移除的流體取樣工具,其配置在裝置之本體中所配置的縱向延伸流體室裡。
本發明的一實施例是IV導管引入器,其包括本體,該本體具有相對面向、大致平坦、可移印的表面。
本發明的一實施例包括IV導管引入器,其具有:本體;前附件,其在橫向於針軸的平面上可滑動地接合本體;針轂;以及可選擇性移除的針蓋,其具有鎖定構件,該鎖定構件建構成在移除針蓋來做血管插入前避免本體和前附件之間的相對滑動。
本發明的一實施例是IV導管引入器,其包括可回縮的導管插針和針回縮彈簧,其在做血管插入期間彼此側向偏移。
本發明的一實施例是IV導管引入器,其包括可回縮的導管插針和針回縮腔,其在做血管插入期間彼此側向偏移。
本發明的一實施例是IV導管引入器,其包括流體取樣工具,該流體取樣工具進一步包括:工具本體;取樣尖端;流體樣本儲槽;過濾器外殼,其連通於流體樣本儲槽;以及過濾器,其座落在過濾器外殼的近端裡。
配合伴隨圖式來考慮以下多種實施例的詳述和所附申請專利範圍,則將更好理解本發明的這些和其他
特徵。
如本文件全篇所用,「遠端的」(distal)是指裝置的零件或元件之面向前的末端,並且「近端的」(proximal)是指裝置的零件或元件之面向後的末端。就一般典型使用環境而言,遠端是最靠近面向前之針尖的末端,並且近端是相對於遠端所配置的末端。
20:靜脈內(IV)導管引入器
22:本體
24:前附件
26:針蓋
28:流體取樣工具
30:過濾器
32:針座總成
34:流體密封
36:線圈彈簧
38:插針
40:轂管總成
42:工具本體
44:流體樣本儲槽
46:流體取樣尖端
48:壁
50:前壁
51:下緣
52:圓柱形開口
53:上緣
54:長形開口
55:定位斜坡
56:觸碰表面
58:觸碰表面
60:管狀搪孔
62:基座
64:針座
66:彈簧支撐柱
68:開放遠端
70:漸縮凹陷
72:遠端針尖
74:近端
76:滑動構件
78:觸碰表面
80:凹陷
82:凹陷
84:針座支撐外殼
86:轂導引
88:轂導引
90:開放遠端
92:通氣開口
93:轂
94:旋鎖
96:側向突座
98:套管支撐
100:撓性套管
102:遠端開口
104:蓋本體
106:基座凸緣
108:鎖定構件
110:漸縮鼻
112:封閉端
114:管狀搪孔
116:流體室
118:針回縮室
120:近端壁
關於以下圖式而進一步描述和解釋本發明的注射器,其中:圖1是本發明IV導管引入器之一實施例的前俯視立體圖,其中安裝了針蓋(包括鎖定構件),而針蓋的鎖定構件在使用前限制本體相對於前附件的側向滑動;圖2是圖1之實施例的前俯視立體分解圖;圖3是圖1之實施例的俯視圖;圖4是圖3之實施例的右側視圖;圖5是沿著圖4之線5-5的截面圖;圖6是圖1之實施例的前視圖;圖7是圖6之實施例的後視圖;圖8是圖1之實施例的前俯視立體圖,其移除了針蓋;圖9是圖8之實施例的仰視圖;圖10是圖8之實施例的前視圖;圖11是圖8之實施例的後視圖;圖12是圖8實施例之本體和前附件部分的俯視圖,其
係在插針回縮並且針轂從前附件分開後;圖13是圖12之實施例的右側視圖;圖14是圖12之實施例的前視圖;圖15是圖12之實施例的後視圖;以及圖16是沿著圖15之線16-16的截面圖。
參見圖1~11,本發明IV導管引入器20之令人滿意的實施例包括本體22、前附件24、可選擇性移除的針蓋26、流體取樣工具28、過濾器30、針座總成32、流體密封34、線圈彈簧36、插針38、轂管總成40。本體22進一步包括具有圓柱形開口52的前壁50,該圓柱形開口52界定凹陷,而包括管狀搪孔60的環狀流體密封34(圖2和5)則在組裝期間座落在凹陷中。仍參見圖2和5,前壁50進一步包括長形開口54,其從圓柱形開口52側向偏移,並且提供對於由壁48和封閉近端壁120所侷限之針回縮室118(圖5)的接取。本體22的前壁50在頂部和底部上受到下緣和上緣51、53的侷限,該下緣和上緣51、53分別橫向於穿過插針38的縱軸而延伸,並且合意地建構成可滑動地接合於前附件24之滑動構件76中對應的凹陷82、80。本體22設有定位斜坡55,以當針蓋26的鎖定構件108(圖2)尚未安裝或在插針38做血管插入前被選擇性移除時幫助本體22相對於前附件24的滑動構件76做側向定位。本體22合意地設有紋理化的觸碰表面56、58以利於在使用期間抓住本體22。
仍參見圖1~11,前附件24進一步包括:滑動構件76,其具有如上所指稱之側向延伸的凹陷80、82;以及紋理化的觸碰表面78,其當前附件24可滑動地接合於前壁50時(如圖1和8所示而有和無針蓋26)配置在相對於本體22之觸碰表面56的一側(圖2)。前附件24進一步包括針座支撐外殼84,其從滑動構件76往前突出。於所示的實施例,針支撐外殼84建構成接收和支撐針座總成32(圖2),其合意地進一步包括:基座62,其具有大致管狀的針座64;以及彈簧支撐柱66,其以大致平行且側向隔開的關係而從基座62往前突出。針支撐外殼84的開放遠端90偕同運作地對齊於針座64的開放遠端68以便於插入插針38,插針38則在IV導管引入器20的組裝期間(圖5和8)往前突出而穿過轂管總成40。針支撐外殼84中的通氣開口92合意且偕同運作地對齊於漸縮凹陷70,其配置於針支撐外殼84之彈簧支撐柱66的遠端中。在IV導管引入器20的組裝期間,針座總成32的彈簧柱66合意地插入線圈彈簧36的近端中,並且線圈彈簧36的遠端插入針支撐外殼84中,然後隨著針座總成32插入前附件24中而被壓縮。插針38的近端74可以在針座總成32插入前附件24中且座落在前附件24裡之前或之後而插入針座64的遠端68中。
於所示的實施例,插針38是以遠端針尖72稍微突出穿過緊密隔開之遠端開口102的方式而插入穿過轂管總成40的轂93、套管支撐98、撓性套管100,如此以在做血管插入期間被針尖72帶入病人的靜脈中。在做血管插
入後,針38在針38回縮到IV導管引入器20的前附件24和本體22中之前(或更佳而言於此期間)往後撤出而穿過撓性套管100、套管支撐98、轂93。轂管總成40進一步包括旋鎖(luer lock)94或另一類似有效的結構,以用於在做血管插入和從轂管總成40撤出或回縮插針38後、在轂93從前附件24分開後將轂93附接到流體流線。於本發明的一較佳實施例(圖2和8),合意地設有側向相對的轂導引86、88,以在插針38做血管插入之前和期間相關於前附件24來適當定位和支撐轂管總成40。合意地設有側向突座96(圖2)以用於在做血管插入前使轂93相對於轂導引86、88而定位,並且用於在做血管插入後分開轂管總成40與前附件24。
仍參見圖1~11,可選擇提供流體取樣工具28以用於獲得IV導管引入器20做血管插入或其他用途所偶發進入本體22的流體室116(圖5)之血液或任何其他體液的小滴尺寸樣本。如本實施例所示,流體取樣工具28進一步包括工具本體42,其具有配置成流體連通於往前突出之流體取樣尖端46的流體樣本儲槽44,儲槽44則配置成流體連通於本體22之環狀流體密封34後面的流體室116(圖5)。過濾器30可合意地從流體取樣工具28的後面插入管狀搪孔114中。根據本發明的一實施例,流體樣本儲槽44的外壁摩擦地接合本體22之流體室116的內壁,以當不使用時維持流體取樣工具28定位。
參見圖1~8,可選擇性移除的針蓋26進一步包括蓋本體104,其從一體模製的基座凸緣106往前突出。
蓋本體104合意地將尺寸做成和建構成摩擦地接合前附件32的外壁和轂導引86、88。合意地設有蓋本體104和具有封閉端112之往前突出的漸縮鼻110,以保護轂管總成40和插針38在使用前免於污染或損傷。在基座凸緣106後面合意地設有鎖定構件108,以避免在使用IV導管引入器20前、在移除針蓋26前本體22相對於前附件24側向移動。
參見圖2和12~16(其中類似識別的零件帶有與上面先前討論一致的參考數字),在做血管插入後的任何時候,插針38可以從轂管總成40回縮到本體22和前附件24中,如此則針尖72在廢棄處置期間不再暴露於病人、照護工作者或IV導管引入器20的後續處理者。針回縮的達成是將相反指向的手動壓力施加到相對面向的觸碰表面56、78,如此則本體22在橫向於穿過插針38之縱軸的方向上相對於前附件24而側向移動。當這側向移動發生時,針座總成32的基座62移動成對齊於針回縮室118。當如此對齊時,本體22的前壁50不施加進一步的阻力到基座62,線圈彈簧36則可以縱向膨脹,而將針座總成32往後推進到針回縮室118中。當本體22是在圖16所示的位置時,出現在環狀流體密封34裡或後面的任何流體則由前附件24保持在那裡。如圖12~16所示,轂管總成40已經與前附件64的轂導引86、88分開,並且IV導管引入器如所示的諸多部分可以用證明適合處置此種生物污染產品的任何方式來棄置。
此技術中的一般技術者在關於伴隨圖式來閱讀本說明書時將明白也可以對在此揭示的實施例做出多種
其他的修改和更動,並且本發明的範圍打算僅由法律賦予發明人之所附申請專利範圍的最廣解讀來限制。
20:靜脈內(IV)導管引入器
22:本體
24:前附件
26:針蓋
28:流體取樣工具
Claims (12)
- 一種用於醫療用途的靜脈內導管引入器,其包括:本體;前附件,其配置成橫向滑動接合於該本體的前部;轂管總成,其由該前附件可釋放地支撐;往後偏壓的針座總成,其座落於該前附件中,該針座總成包括:基座、管狀針座、插針,其穿過該轂管總成而從該基座往前突出、彈簧支撐柱,其從該基座往前突出、以及偏壓元件,其可滑動地接合該彈簧支撐柱;其中該本體進一步包括針回縮腔,其在針回縮前從穿過該插針的縱軸而側向偏移,且該管狀針座與該彈簧支撐柱係以平行、非同軸且側向隔開的關係而從該基座往前突出,使得該偏壓元件被配置為從該管狀針座側向偏移而不圍繞該插針。
- 如申請專利範圍第1項的靜脈內導管引入器,其中該偏壓元件是壓縮線圈彈簧。
- 如申請專利範圍第1項的靜脈內導管引入器,其中該插針進一步包括近端,其以固定關係而配置於該管狀針座。
- 如申請專利範圍第1項的靜脈內導管引入器,其中該 壓縮線圈彈簧鄰靠該彈簧支撐柱周圍的該基座,以使該針座總成往後偏壓靠著該本體之面向前的表面。
- 如申請專利範圍第1項的靜脈內導管引入器,其中該本體進一步包括流體室,其在針回縮前乃同軸對齊於該插針。
- 如申請專利範圍第5項的靜脈內導管引入器,其中環狀流體密封配置在該針座總成和該本體的該流體室之間,以提供在該本體和該前附件之間的流體密封。
- 如申請專利範圍第5項的靜脈內導管引入器,其中流體取樣工具可滑動地接合該流體室的近端。
- 如申請專利範圍第7項的靜脈內導管引入器,其中該流體取樣工具進一步包括:工具本體;往前突出的取樣尖端;以及流體樣本儲槽,其配置在該工具本體裡而流體連通於該取樣尖端和該流體室。
- 如申請專利範圍第8項的靜脈內導管引入器,其中該工具本體進一步包括管狀過濾器外殼,其配置在該流體樣本儲槽後方,該過濾器外殼包括圓柱形搪孔和座落於該圓柱形搪孔之近端的過濾器。
- 如申請專利範圍第1項的靜脈內導管引入器,其進一步包括可選擇性移除的針蓋,其摩擦地接合該前附件。
- 如申請專利範圍第10項的靜脈內導管引入器,其中該可選擇性移除的針蓋進一步包括鎖定構件,其建構成在該插針做血管插入前避免該本體和該前附件之間的側向滑動。
- 如申請專利範圍第9項的靜脈內導管引入器,其中該轂管總成進一步包括轂和從該轂往前突出的撓性套管。
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CA3094804A1 (en) | 2019-10-03 |
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