公开(公告)号：US5368029A

公开(公告)日：1994-11-29

申请号：US869452

申请日：1992-04-16

申请人： David A. Holcombe ,  Brent W. Poole

发明人： David A. Holcombe ,  Brent W. Poole

IPC分类号： A61B5/15 ,  A61B5/00

CPC分类号： A61B5/157 ,  A61B5/14503 ,  A61B5/15003 ,  A61B5/150221 ,  A61B5/150259 ,  A61B5/150389 ,  A61B5/150519 ,  A61B5/150992 ,  A61B5/1535 ,  A61B5/6848 ,  A61B2562/0295 ,  A61B5/14539 ,  Y10S128/917

摘要： An integral catheter and blood tester includes a needle unit which is receivable within a conventional catheter intravenous tube and housing. The catheter supports a piercing needle and interior chamber. A transparent tester housing is coupled to the needle unit and supports a test strip and test patch which extends into the flash chamber of the catheter needle. A constricting valve surrounds the test strip to maintain closure of the flash chamber. Once the catheter and needle have been inserted into the desired blood vessel, a quantity of blood is introduced into the flash chamber so as to wet the test patch. The test patch may, for example, include conventional litmus material used to test the pH of the test sample. Once the flash process is complete, the needle and tester housing are withdrawn from the catheter to permit conventional intravenous coupling to the catheter. Thereafter, the tester housing is separable from the needle unit to permit discarding of the needle unit. The separation process causes the test strip to be wiped substantially clean of excess blood by the constricting valve. The tester housing provides a protective clear shield about the contaminated test patch which facilitates visual examination thereof while precluding inadvertent contact with the blood contaminated test patch.

摘要翻译： 一体式导管和血液测试仪包括可接收在常规导管静脉内管和外壳内的针单元。 导管支撑穿刺针和内腔。 透明的测试器壳体联接到针单元并且支撑延伸到导管针的闪光室中的测试条和测试贴片。 收缩阀围绕测试条以维持闪光室的关闭。 一旦将导管和针头插入所需的血管中，将一定量的血液引入闪光室，以便使测试贴片变湿。 测试贴片可以例如包括用于测试测试样品的pH的常规石蕊材料。 一旦闪光过程完成，针和测试器壳体从导管中取出，以允许常规静脉内联接到导管。 此后，测试器壳体与针单元分离以允许丢弃针单元。 分离过程使测试条被压缩阀基本上清洁过量的血液。 测试仪壳体围绕受污染的测试贴片提供保护性透明屏蔽，其有助于目视检查，同时排除与血液污染的测试贴片的无意接触。