Patent MX-2012000530-A (MX)
Title: Syringe-type hermetic occlusion surgical clamp for the cervix, intended for use in cases of placenta praevia.
Inventor: SANCHEZ ARNOLDO GUZMAN
IPC: A61B17/29
Filed: 2012-01-10
Abstract: A surgical forceps, syringe type, hermetic occlusion of female cervix in cases of placenta previa, comprising of: Two occlusive segments which includes an expander spring (5.1) at one end of each occlusive segment has a conical section (5.2) and furthermore each section has a semi cylinder (5.3) drilling, which overlap each other, and together with a bolt (5.4) to drive the semi-cylinder, each semi-cylinder having a machining to be assembled together by the proximal end portion thereof to the occlusive segments, which are attached by a bolt (5.4), both semi-cylinders (5.3) being attached by the bolt (5.4), this allowing the semi-cylinders (5.3) of the occlusive segments to be fastened to the traction semi-cylinders, this assembly allowing the traction semi-cylinders to be rotated over the bolt axis (5.4). Traction Semi-cylinders are two, and each has two flat surfaces. One of the flat surfaces of each half cylinder has two slopes (steps): first slope (6.1) and second slope (6.2). The approximation of the two first ramps (6.1) allows a space between these two first ramps, which is generated by bringing the two major planar surfaces (6.3) of the semi-cylinder. This space allows for the hosting of the (5.3) occlusive segments. In both second unevenness (6.2) there is a threaded bore means (6.4), which is screwed to the clamping cylinder (6.5). In each major flat surface (6.3) one hole is machined into the two major planar surfaces (6.3). In these holes is placed a spring (6.9) that separates the two traction semi-cylinders, Figure 6. On the outside of one of the traction semi-cylinders, Figure 6, is machined a plurality of grooves (6.6) which engage with the clamping appendix (segment) (7.1) of the frame, Figure 7. Adjacent to the plurality of grooves (6.6), one terminal threaded hole is machined (6.7), to which the release cylinder is screwed (6.8). The frame, Figure 7 is formed by two parts: 1.- A main part (7.2) and 2. - the secondary part (7.3). The main part ( 7.2) is an essentially cylindrical hollow. At one end portion has a conical section (7.4), which inner portion has semi-conical sections (5.2) coupled thereto. This coupling enables the separation or approximation of occlusive segments, the frame also having two elliptical grooves (7.5) which allow the passage of the clamping cylinders (6.5). At the end of the main part, a reduced circumference is presented (7.6) where the frame bolt (7.7) is located, which serves to couple the main part (7.2) with the secondary part (7.3) of the frame. The appendix (segment) clamping (7.1). is located in a portion of the end part of the reduced section of the circumference (7.6).The secondary part (7.3) is a hollow cylindrical element having a closed end (7.8) and an open end (7.9). On the inside of the open end (7.9) is presented a reduction in thickness of the cylinder which engages the reduced section of the circumference (7.6) of the main part (7.2), also has a slot with a groove machined in an " L " shape (7.10mm), which is coupled to the frame bolt (7.7).