公开(公告)号：US3828780A

公开(公告)日：1974-08-13

申请号：US34487273

申请日：1973-03-26

Applicant: VALLEYLAB INC

Inventor： MORRISON C

IPC: A61B18/14 ,  A61M1/00 ,  A61B17/40

CPC classification number: A61B18/1402 ,  A61M1/0047 ,  Y10S604/902

Abstract: A combined electrocoagulator-suction instrument useful for coagulating bleeding capillaries and veins within a surgical field and for sucking out blood and other liquids from the field either during, before or after the coagulation procedure. An elongate body of electrically non-conductive material is formed with a main flow passage terminating at one end of the body in a nipple for connecting the passage to a vacuum source. A second passage through the body receives an electrical conductor connected to an electro-surgical generator, the end of the conductor passing through the second passage and having its bared end bent back to extend into the interior of the first passage. An open ended metal tube has one end formed to be inserted into the main passage at the end opposite to said nipple, the tube being mechanically seated within the passage in electrical contact with the bared wire end. An electrically non-conductive sheath surrounds all of the exposed surface of the tube with the exception of a short section at the opposite end or tip. A branch passage extends through the wall of the body to communicate with the main passage at a location intermediate the ends of the main passage, the opposite end of the branch passage opening at the exterior of the body at a vent opening which can be fully or partially covered by the surgeon''s finger to regulate the degree of suction within the main flow passage. The vent opening is offset from the location at which the branch passage communicates with the main passage in an upstream direction with respect to the direction of flow of fluid through the main passage.

Abstract translation: 一种组合的电凝器抽吸仪器，可用于凝结外科手术领域的出血毛细血管和静脉，并在凝血过程中，之前或之后从外地汲取血液和其他液体。 形成非导电材料的细长主体形成有主流道，其终端于主体的一端，用于将通道连接至真空源。 通过本体的第二通道接收连接到电外科发生器的电导体，导体的端部穿过第二通道并且其弯曲的端部弯曲回延伸到第一通道的内部。 开口的金属管的一端形成为在与所述接头相对的端部处插入主通道中，该管机械地安置在通道内与裸露的线端电接触。 除了在相对端或尖端处的短截面之外，非导电护套围绕管的所有暴露表面。 分支通道延伸穿过主体的壁，在主通道的端部之间的中间位置处与主通道连通，分支通道的相对端在主体的外部在通风口处开口，该通气口可以是完全或 被外科医生的手指部分地覆盖以调节主流道内的抽吸程度。 通气口相对于通过主通道的流体的流动方向在上游方向上与分支通道与主通道连通的位置偏移。

公开(公告)号：US3801766A

公开(公告)日：1974-04-02

申请号：US3801766D

申请日：1973-01-22

Applicant: VALLEYLAB INC

Inventor： MORRISON C

IPC: A61B18/14 ,  H01H1/40 ,  H01H9/06 ,  H01H23/30 ,  H01H1/18

CPC classification number: A61B18/1402 ,  H01H1/403 ,  H01H9/06 ,  H01H2300/014

Abstract: An electrical switching device is disclosed herein and comprises the major components suitable for use as a compact, easily installed switching device and also in an electro-surgical tool which, through the operation of the switching device, is readily adaptable for different intended uses and highly reliable. In one embodiment, the switching device includes a tubular housing having an intermediate longitudinally extending slot formed in its wall and a pair of longitudinally extending diametrically opposed recesses formed on its inner surface. A rectangularly shaped printed circuit board is mounted within the diametrically opposed recesses and includes at least three spaced apart electrical contacts which are positioned so as to be accessable through the slot formed in the housing. An integrally formed, elongated spring contact member is disposed in electrical conducting engagement with the center one of these electrical contacts and includes opposing energy absorbing coils, each of which is adapted to engage reliably a corresponding one of the otherwise free contacts. In this regard, in order to increase further the reliability of the engagement of the contacts, means are provided for securing the printed circuit board against inadvertent longitudinal movement within the housing. An arcuately shaped insert is mounted within the aforedescribed slot and engages portions of the lower surface of the circuit board for further securing said insert in place. In addition, the arcuately shaped insert includes a longitudinally extending slot adapted to receive therein a portion of a longitudinally extending rocker type switch actuator for pivotal movement about an axis generally normal to the axis of alignment of the electrical contacts. The free ends of the aforedescribed spring contact member are positioned within recess guides formed in the actuator and move into engagement with their corresponding contacts in response to selective pivotal movement.