公开(公告)号：US4990130A

公开(公告)日：1991-02-05

申请号：US547711

申请日：1990-07-02

申请人： A. Wesley Prais

发明人： A. Wesley Prais

IPC分类号： G01N1/10 ,  B01F11/00 ,  B04B5/02 ,  B04B5/04 ,  B04B9/00 ,  B04B9/08

CPC分类号： B01F11/0094 ,  B04B5/0421 ,  B04B9/00 ,  B04B9/08

摘要： A centrifuge device is provided which may impart selectively controlled centrifugal force to samples under consideration, or a shaking or agitation movement to the samples, as required. A feature of the invention is the use of two roller clutches on the single drive shaft of the device so that a selective movement may be imparted to the samples through the same drive by utilizing a locking mechanism to provide rotation from the shaft in opposite directions. Rotation in one direction causes the imposition of centrifugal force through one clutch, while rotation in the opposite direction causes rotation through the second clutch and the imposition of agitation. In that direction, the sample support mechanism is moved vertically, controlled by a cylinder cam. A further feature of the invention is selective agitation movement and selective degree of agitation through selection of a particular cam profile.

公开(公告)号：US07320683B2

公开(公告)日：2008-01-22

申请号：US10635066

申请日：2003-08-05

申请人： A. Wesley Prais ,  Judith L. Doyle ,  Steven L. Koziol ,  Frederic Perot

发明人： A. Wesley Prais ,  Judith L. Doyle ,  Steven L. Koziol ,  Frederic Perot

IPC分类号： A61M5/32

CPC分类号： B24B19/16 ,  A61M5/3202 ,  A61M5/3286 ,  A61M2005/3109 ,  A61M2205/195

摘要： A syringe assembly including a needle cannula having a five-beveled point and a needle shield formed of a styrene block poly(ethylene/butylene) thermoplastic elastomer which significantly reduces needle penetration force and may reduce the cycle time for gas sterilization. The multi-beveled needle cannula point includes a primary bevel, a pair of tip bevels and a pair of middle bevels each intermediate the primary bevel and a respective tip bevel, wherein the angles of rotation of the primary bevel and the intermediate bevels are substantially equal resulting in reduced heights of intercepts between the bevels, therby reducing needle penetration force. The needle shield maintains the sharpness of the needle cannula during application, sterilization and removal of the shield and it is believed that the needle shield will also reduce the cycle time of gas sterilization as compared to rubber needle shields and vulcanizate thermoplastic elastomers.

摘要翻译： 一种注射器组件，其包括具有五斜面的针插管和由苯乙烯嵌段聚（乙烯/丁烯）热塑性弹性体形成的针护罩，其显着降低针穿刺力并且可减少气体灭菌的循环时间。 所述多角针插管点包括主斜面，一对尖端斜面和一对中间斜面，每个中间斜面均在所述主斜面和相应的尖端斜面之间，其中所述主斜面和所述中间斜面的旋转角度基本相等 导致斜面之间的截距的高度减小，从而减少针的穿透力。 针护罩在施加，消毒和除去护罩期间保持针管的清晰度，并且相信与橡胶针护罩和硫化橡胶热塑性弹性体相比，针罩还将减少气体灭菌的循环时间。

公开(公告)号：US07468055B2

公开(公告)日：2008-12-23

申请号：US10634567

申请日：2003-08-05

申请人： A. Wesley Prais ,  Eric Borin ,  Lionel Vedrine ,  Judith L. Doyle ,  Steven L. Koziol

发明人： A. Wesley Prais ,  Eric Borin ,  Lionel Vedrine ,  Judith L. Doyle ,  Steven L. Koziol

IPC分类号： A61M5/32

CPC分类号： A61M5/3202 ,  A61M5/3286 ,  A61M2205/195 ,  B24B19/16

摘要： A syringe assembly including a needle cannula having a five-beveled point and a needle shield formed of a styrene block poly(ethylene/butylene) thermoplastic elastomer which significantly reduces needle penetration force and may reduce the cycle time for gas sterilization. The multi-beveled needle cannula point includes a primary bevel, a pair of tip bevels and a pair of middle bevels each intermediate the primary bevel and a respective tip bevel, wherein the angles of rotation of the primary bevel and the intermediate bevels are substantially equal resulting in reduced heights of intercepts between the bevels, therby reducing needle penetration force. The needle shield maintains the sharpness of the needle cannula during application, sterilization and removal of the shield and it is believed that the needle shield will also reduce the cycle time of gas sterilization as compared to rubber needle shields and vulcanizate thermoplastic elastomers.

公开(公告)号：US06629963B2

公开(公告)日：2003-10-07

申请号：US09809469

申请日：2001-03-15

申请人： A. Wesley Prais ,  Judith L. Doyle ,  Steven L. Koziol ,  Frederic Perot

发明人： A. Wesley Prais ,  Judith L. Doyle ,  Steven L. Koziol ,  Frederic Perot

IPC分类号： A61M532

CPC分类号： B24B19/16 ,  A61M5/3202 ,  A61M5/3286 ,  A61M2005/3109 ,  A61M2205/195

摘要： A syringe assembly including a needle cannula having a five-beveled point and a needle shield formed of a styrene block poly(ethylene/butylene) thermoplastic elastomer which significantly reduces needle penetration force and may reduce the cycle time for gas sterilization. The multi-beveled needle cannula point includes a primary bevel, a pair of tip bevels and a pair of middle bevels each intermediate the primary bevel and a respective tip bevel, wherein the angles of rotation of the primary bevel and the intermediate bevels are substantially equal resulting in reduced heights of intercepts between the bevels, thereby reducing needle penetration force. The needle shield maintains the sharpness of the needle cannula during application, sterilization and removal of the shield and it is believed that the needle shield will also reduce the cycle time of gas sterilization as compared to rubber needle shields and vulcanizate thermoplastic elastomers.

摘要翻译： 一种注射器组件，其包括具有五斜面的针插管和由苯乙烯嵌段聚（乙烯/丁烯）热塑性弹性体形成的针护罩，其显着降低针穿刺力并且可减少气体灭菌的循环时间。 所述多角针插管点包括主斜面，一对尖端斜面和一对中间斜面，每个中间斜面均在所述主斜面和相应的尖端斜面之间，其中所述主斜面和所述中间斜面的旋转角度基本相等 导致斜面之间的截距的高度减小，从而减少针的穿透力。 针护罩在施加，消毒和除去护罩期间保持针管的清晰度，并且相信与橡胶针护罩和硫化橡胶热塑性弹性体相比，针罩还将减少气体灭菌的循环时间。