12 results about "Long axis" patented technology

The present invention provides a dilator that can suppress the displacement of a convex portion extending in a spiral shape in the long-axis direction. The dilator comprises: a first coil (2) whose outer diameter increases from the front end toward the base end; and a convex portion (3A) provided on the outer periphery of the first coil (2) and extending in a spiral shape in the long-axis direction of the first coil (2) on the outer periphery of the first coil (2). The convex portions (3A) have gaps (3B) between adjacent convex portions (3A) in the long-axis direction. A covering layer (5) is provided that covers at least the outer peripheral surface (2A) of the first coil (2) located in the gap (3B). The top (3D) of the convex portion (3A) is exposed.

To provide a toothbrush high in plaque removal power.SOLUTION: A toothbrush includes a handle body and a brush molded body formed by soft resin. The brush molded body has a head base part, and a plurality of filaments extending from a supporting surface of the head base in a long axial direction. The filament has a recess which opens on one side in a first direction and is recessed on the other side in the first direction. The recess has: a first opening end located at an end on one side in the first direction and located on one side in a second direction; a second opening end located at the end part on one side in the first direction and located on the other side in the second direction; and a bottom end part located on the farthest other end side in the first direction and located at a prescribed position in the second direction. Of the plurality of filaments, second filaments adjacent to one side in the first direction relative to a first filament has at least a part of an outer wall located on the farthest other side in the first direction located between a first border line passing the bottom end part in the first filament and the first opening end and a second border line passing the bottom end part and the second opening end.SELECTED DRAWING: Figure 8

The invention discloses a novel method for designing a longitudinal molded line of a piston skirt, which comprises the following steps of: 1, fitting the longitudinal molded line by a point A, a point B and a point C, and connecting two sections of arc lines with a middle straight line section; the point B is a middle convex point of the piston and is located at a certain position of the middle straight line section, and the length of an outer ellipse long axis at the middle convex point of the piston is D; the A point is the upper end point of the longitudinal molded line close to the piston top; the C point is a lower end point of the longitudinal molded line close to the bottom of the piston; setting a point B1 as an upper end point of the middle straight line section and a point B2 as a lower end point of the middle straight line section; secondly, the radius reduction amount of the point A of the longitudinal molded line is 0.04%-0.15% of the length D of the long axis of the outer ellipse at the position of the middle protruding point; and the radius reduction amount of the C point of the longitudinal molded line is 0.01-0.1% of the length D of the long axis of the outer ellipse at the middle convex point. According to the method, the idea of fitting the longitudinal molded line through the parameter equation is provided, a new feasible mode is provided for piston design and optimization, application of the parameter equation in the aspect of piston molded line design is facilitated, and a new idea is opened.

A multipurpose foot-powered system is disclosed which is a set of foot-powered and hand-operated tools which break up the structure of compacted earth. Specifically, the system comprises a kick-pick tool and a twist-pick tool. The kick-pick tool measures approximately 5-6 feet in length. It resembles a shovel with a hooded steel pick or hooded chisel tip for a blade. The blade is slightly curved like a shovel and an integral footrest is positioned at a convenient distance from the tip of the hooded blade, which will allow the user to drive the hooded blade into the earth with their foot. The twist-pick tool is similar in design, however the tool is entirely straight from its tip through its handle. The footrest height is adjustable by the user and the handle has a T-shaped crossbar that enables a user to twist the hooded blade about the long axis of the twist-pick.

The utility model relates to the technical field of medical instruments, in particular to a distraction reduction fibula far-end bone fracture plate which comprises a head portion, a neck-trunk portion and a trunk portion which are integrally arranged, the width of the head portion is larger than that of the trunk portion, the head portion is provided with a plurality of locking holes arranged at intervals, the trunk portion is provided with a plurality of through holes arranged at intervals, and the through holes are communicated with the neck-trunk portion. The through hole is a combination hole formed by overlapping a threaded round hole and a non-threaded pressurizing hole groove part, the long axis X of the combination hole is arranged in the length direction of the stem part, and the pressurizing hole groove is arranged close to one side of the head part. The pressurizing hole groove in the combination hole is arranged close to one side of the head of the bone fracture plate, so that the pressurizing direction of the pressurizing hole groove is far away from the fracture end of the far end of the fibula, the stretching reduction of the fracture end is realized, and the treatment effect of the fracture of the far end of the fibula is effectively improved.

One or more embodiments of the present invention relate to a polyacrylonitrile-based artificial hair having a bean-shaped transverse cross-section having an outer peripheral shape comprising an upper peripheral edge portion with a curved recess at the center and a lower peripheral edge portion curved in an arc shape, in which: in the transverse cross section, the ratio Lf / Sf of a longer diameter Lf to a shorter diameter Sf is 1.20 or more, and the ratio a / b of a cross-sectional minimum thickness a of the recess to a cross-sectional maximum thickness b of protrusions on both sides of the recess is 0.51 to 0.91; the longer axis of the transverse cross-section is positioned above the bottom of the recess, the longer axis being the longest segment among segments connecting arbitrary two points on the outer periphery of the transverse cross-section; the longer diameter Lf represents the length of the longer axis; the shorter diameter Sf represents the linear distance between two parallel lines parallel to the longer axis and sandwiching the transverse cross section; the cross-sectional minimum thickness a of the recess represents the minimum thickness of the transverse cross-section immediately below the bottom of the recess; and the cross-sectional maximum thickness b of the protrusions represents the maximum thickness of the transverse cross-section in the protrusions positioned above the bottom of the recess.

A method of manufacturing an interface for a body part is described. The method includes the step of selecting an inner radial dimension of the interface to have a plurality of compression areas that extend along the long axis of the interface. The method also includes the step of spacing the plurality of compression areas circumferentially around the long axis of the interface to create a compression pattern. The compression pattern is sized and dimensioned to reduce motion of the skeletal structure towards a wall of the interface when the interface is worn on the body part by compressing soft tissue of the body part against the skeletal structure.

The simple configuration improves the ease of adjusting tension. [Solution] A frame that fixes the mesh by a rectangular main frame (frame) 20 composed of four sides having a U-shape with an open outer side, and holding parts 10 provided corresponding to each of the four sides, wherein the holding part 10 is provided so as to be slidable inward and outward relative to the main frame (frame) 20 while in contact with the lower surface of the upper part of the U-shape of the main frame (frame) 20, and comprises a sliding part 11 having a groove 11a at its upper part that is aligned with the long axis of the main frame (frame) 20, a holding shaft 12 disposed inside the groove 11a, and a fixing member 13 that positions and fixes the sliding part 11 so as to fix the mesh sandwiched between the sliding part 11 and the holding shaft 12.

The invention belongs to the technical field of ocean engineering, and particularly relates to a detection sample plate and a design method thereof.The detection sample plate is used for detecting a bent plate, the bent plate is configured to be a transition area of a plate body, the bent position of the bent plate is an arc, the radius of the arc is R, an included angle formed by the arc center line of the bending part and a horizontal line perpendicular to the center line of the bending plate is a, and the detection sample plate is characterized in that the downstream outer edge of the detection sample plate is in an elliptic arc shape, the length ratio of a short axis to a long axis of an ellipse formed by the elliptic arc shape is sin a, and the length of the short axis is 2R. The device is reasonable in design principle and simple in structure, and the measured value is accurate to + / -1mm.

To achieve oral cavity operability and firm polishing feelings by transmitting the force applied to a grip part to a bristle-implanted part surely while suppressing bending of a neck part.SOLUTION: A toothbrush 100 includes a brush body 110 including a head part 10 having a bristle-implanted surface 11 arranged on the tip side in a long axis direction, a neck part 20 arranged on a rear end side of the head part 10, and a grip part 30 arranged on the rear end side of the neck part 20. The neck part 20 has a straight shape having a vertically long flat roughly square cross-sectional shape, and extends along the long axis direction with the length D1 and the length W1 being constant values when the length in a thickness direction of the neck part 20 is represented as D1 and the length in a width direction is represented as W1, and the length W1 and the length D1 satisfying the relationship of D1>W1.SELECTED DRAWING: Figure 1

In the present invention, a toothbrush is provided with a handle body formed from a hard resin, and a brush part formed from a soft resin. The brush portion has a brush base portion and filaments. The filaments protrude from the brush base portion toward one side in the thickness direction. The handle body is provided with a neck part, a connecting part and an embedding part. The connecting portion, the fitting portion, and the brush base portion constitute a head shaft portion. The connecting edge portion is an end portion on one side of the connecting portion in the long axis direction and an end portion on one side of the connecting portion in the width direction. The neck edge portion is an end portion on one side in the width direction of a portion where the dimension in the width direction of the neck portion is smallest. The maximum dimension of the head shaft portion in the thickness direction is 3.0 mm or more and 4.5 mm or less. The minimum dimension of the neck portion in the width direction is 3.0 mm or more and 4.5 mm or less. An angle formed by a first imaginary line passing through both the connecting edge portion and the neck edge portion and the central axis is 17-28 DEG.

The utility model relates to the field of X-ray shooting auxiliary equipment, in particular to a posterior foot force line position X-ray shooting auxiliary device which comprises an outer frame assembly, a shank fixing assembly is installed below the front end of the outer frame assembly, and the shank fixing assembly comprises a side plate, a second spring, a guide rod and a clamping plate. A second spring is connected to the middle of the side, close to the central axis of the outer frame assembly, of the side plate, guide rods are connected to the front side and the rear side of the side, close to the central axis of the outer frame assembly, of the side plate in a penetrating mode, and a clamping plate is connected to the side, away from the side plate, of the second spring. The device is provided with the leg clamping and fixing structure, can assist a patient in standing, ensures that the long axis of the shank of the patient is kept perpendicular to the horizontal plane, facilitates photographing work and accurate measurement of the force line of the rear foot, and is provided with the leg lifting structure, a non-detection leg is lifted up during photographing, the body weight of the patient is placed on the non-detection leg, and the detection accuracy is improved. And accurate measurement of the rear foot force line is also realized.