60 results about "Slender body" patented technology

The invention discloses an integration design method for a hypersonic slender body air vehicle and a three-dimensional inward rotation air inlet channel, and relates to near space aerocrafts. The method comprises the following steps that a three-dimensional shock wave hook face is designated according to the design requirement; a series of basic flow fields are derived reversely according to the relation between the discrete shock wave curve and the curvature center; a slender waverider vehicle lower surface molded line and the outlet section of the three-dimensional inward rotation air inlet channel are designed, and streamline tracing in the counter flow direction is conducted in the basic flow fields; the two-dimensional projection shape of a lip of the three-dimensional inward rotation air inlet channel is designed, and a three-dimensional configuration of the lip of the three-dimensional inward rotation air inlet channel is obtained according to the shock wave relation; and the hypersonic slender body air vehicle is subjected to geometric construction based on a compression molded face. The performance of an outer waverider vehicle front body and the performance of the three-dimensional inward rotation air inlet channel are simultaneously considered by the generated slender body hypersonic air vehicle and the air inlet channel, the lift drag characteristic is high, full-flow incoming flow capture can be ensured, engine thrust is increased, outflow resistance is reduced, the operation Mach number range of the air inlet channel is widened, and natural transition of an inner waverider part and an outer waverider part is achieved.

A manually manipulated assistive device for facilitating opening and closing a door by a handicapped person, especially one in a wheelchair. An elongated slender body preferably formed of a single transparent rigid plastic rod has a straight central portion, a hook formed at one end like a shepherd's hook and a hand or finger grasping handle at another end of the rod. The hook is adapted for snug snapping engagement over a neck area of a doorknob and, thereafter, for loose swinging supported movement relative to the doorknob. The rod has a length sufficient for the device to be held and pivoted on the hook about the neck area into a generally horizontal position by user grasping the handle to open or close the door. A retaining clip attached to the door at a height above the floor similar to that of the doorknob holds the device in a generally horizontal orientation stored ready for use.

The invention relates to the medical instrument technical field, and discloses a bending device and a surgery operation instrument; a bending device drive assembly comprises a drive screw rod; the drive screw rod is arranged on a fixed handle in a rotary manner around an axis; the axis of the drive screw rod is parallel to that of a slender body; the drive screw rod has two treads comprising a left-hand thread and a right-hand thread; a drive rod is screwed with one thread, the other drive rod is screwed with the other thread; far sides of the two drive rods are connected with an end effector; the bending device drive assembly also comprises a rotary sleeve coaxially sleeved outside the drive screw rod; when the rotary sleeve is in a bending adjusting work position, the rotary sleeve is in transmission connection with the drive screw rod through a gear assembly. The rotary sleeve is matched with the gear assembly of the drive screw rod, and the drive screw rod are screwed with the two drive rods with high stability; the rotary angle of the rotary sleeve can be controlled so as to control a bending angle of the end effector against the slender body, so the operation is high in accuracy.

The present invention provides a tendon divided into compartment enclosing therein pressurized gas. The invention also relates to a method for transporting a fluid containing tubular body or assembly of bodies above a sea / river bed floor and within a body of water. In addition the invention comprises a method of installing and removing an internal pressurized tendon or assembly of tendons in a vertical position in a body of water.

A method for modifying standard ANSI body sizing charts extrapolation sizes outside of the standard sizes if necessary. In a subsequent step, the user may incorporate different upper and lower body sizes. Correction factors are then applied if a tall / short, full / slender body type is selected. A new chart is output to the user in human readable form.

The invention relates to the technical field of medical instruments and discloses a driving device and a surgical operating instrument. The driving device comprises a driving component, and the driving component comprises a transmission component, a limiting mechanism, a first rotary sleeve and a second rotary sleeve, wherein the transmission component is used for driving an end effector to turn during acting, the limiting mechanism is mounted on a fixing handle and circumferentially locks a slender body when being positioned at a limiting position, the first rotary sleeve is mounted on the fixing handle and is circumferentially locked with the slender body, and the second rotary sleeve sleeves the first rotary sleeve coaxially. When being positioned at a turn adjusting position, the second rotary sleeve is in transmission connection with the transmission component and is matched with the limiting mechanism to enable the limiting mechanism to be kept at the limiting position; when being positioned at a rotation adjusting position, the second rotary sleeve is not in transmission connection with the transmission component, and the limiting mechanism restores. The driving device is capable of improving stability in switching between end effector turn control and slender body rotation control in the surgical operating instrument.

The invention discloses an operation cutting suture instrument. The operation cutting suture instrument comprises a hand shank, a trigger, a slender body, a drive device, a drive worm, a transmission part, and an execution part, wherein the slender body extends from the hand shank to a far end, the drive device comprises a drive worm gear, the drive worm gear is connected with the trigger and is driven through the trigger, the drive worm is meshed with the drive worm gear and is driven through the drive worm gear, the execution part and the transmission part form lead screw connection, the drive worm gear drives the drive worm to rotate along a first direction to cause the fact that the drive worm and the transmission part are meshed with each other, so that the transmission part is driven to rotate, and therefore through the lead screw connection, the execution part is driven to move in a flat mode to the far end. The operation cutting suture instrument can enable transmission of drive force to be stable, and conveniently provides larger reset force.

A decorative woven fibrous furniture includes a framework and a slender body formed of a plurality of stranded core elements made of a natural fiber, then the core elements are enclosed with a protective sheath made of a polymer added with natural fibrous powder. The outer surface of the protective sheath may have more than two colors, and provided with decorative figures of straie, patterns or the like so as to beautify the appearance of the product. Then the slender body is woven on the furniture thereby completing decorative woven furniture. The furniture made as such is a perfect environment-conscious product.

The invention discloses a four-component tubular wind tunnel balance with transverse jet, and the wind tunnel balance is integrally in a rod-shaped structure and comprises, from front to back, a balance and model installation cone, a balance Y-Mz element strain beam, a balance Z-My element strain beam, and a balance and pole installation cone, wherein a through hole is defined along the central axis of the wind tunnel balance, and the through hole is a jet medium gas pipeline. The four-component tubular wind tunnel balance with transverse jet provided by the invention can solve the interference of the jet medium gas pipeline to the balance measurement, and can accurately measure the aerodynamic forces and moments of the test model in the X and Y directions. The wind tunnel balance is smallin size and strong in versatility, and can be widely used in wind tunnel test with transverse jet of slender bodies.

The invention provides a surgical suture with reinforced barbs. The surgical suture comprises a slender body, wherein the slender body is a single-stranded suture with a smooth outer surface; at leastone barb is arranged on the slender single-stranded suture; the barbs are arrayed in one direction or double directions and can be positioned on the single side or the symmetric double sides of the slender single-stranded suture; and the barbs which are positioned on the symmetric double sides can be positioned at the same position or different positions of the slender single-stranded suture. Atleast one annular groove is formed in the lower edge of each barb, a biological adhesion agent coats the inside of each groove; at least one circle of suture is wound in each groove; after winding ofthe suture is finished, each groove is filled with a filling agent completely and smoothly. By the surgical suture with the reinforced barbs, the fixing strength of the single-stranded suture barbs can be improved effectively, the barbs are prevented from failing or being stripped from an axle of the suture, and the risk of failing of a clinical suture surgery is relieved.

A geometry-detecting machine for a slender body includes a fixed reference frame (30, 31) provided with at least one pair of constraint points (1) for the slender body and sensor element (28) for the spatial detection of the geometry of the slender body, wherein the constraint points are in the shape of vertical constraints points (1, 3, 5) coupled in pairs by interconnecting element (4, 34) in turn making up vertical constraint points to be coupled in pairs on multiple levels and wherein the interconnection element are pivoting arms, such to allow the slender body to meander freely in order to guarantee for the slender body an attitude as natural as possible.

The invention relates to a multi-highlight clustering analysis-based underwater slender body feature recognition method. The method comprises the following steps of: calculating a length and a motiondirection of an underwater slender body target by utilizing highlight space distribution of the underwater slender body target; and obtaining a clustering center of a target clustering point by adoption of an expected maximum value EM algorithm under a constraint condition through combining a clustering analysis method, and estimating a course and a length of the target. According to the method, the EM algorithm with the constraint condition is adopted, multi-highlight information is utilized, and headings (courses) and scales of underwater targets with slender body shapes are estimated; and the method has the characteristics of being simple, easy and reliable in work.

The invention relates to a transurethral bendable manual cystoscope, comprising a cystoscope body and a three-degree-freedom driving unit; the cystoscope comprises a high definition camera with a lighting module, a fixing disk, two first structure bones, a second structure bone, a supporting component and a thin wall pipe with a circular section, wherein two first structure bones and one second structure bone are evenly distributed in the form of triangle, and front ends of the three are commonly and tightly connected to one side of the fixing disk; the other side of the fixing disk is fixedly connected with the high definition camera, the lighting module of the high definition camera is located on an extension line of the second structural bone; the supporting component is a slender body structure, and the back end of the supporting component is connected with the three-degree-freedom driving unit; a channel for making cables of the first structure bone, the second structure bone and the high definition camera cross through are arranged on the supporting component; two first structure bones and the back end of the second structure bone are connected with the three-degree-freedom driving unit after crossing through the supporting component; the thin wall pipe is sleeved at the outer part of the supporting component.

The invention relates to a device for eliminating the flying lateral force of an aircraft at a high angle of attack, which comprises a thin film support frame and a retraction and extension mechanism. A retraction and extension seam is formed on a skin over the front part of the head part of the aircraft; a hinge (12) is fixedly arranged at the zenith of the head part in the aircraft, and the center of the hinge is positioned on the axial line of the aircraft; the thin film support frame is mounted in the aircraft, and the thin film support frame is positioned on the longitudinal symmetric plane of the aircraft; and the zenith end of a triangle of the thin film support frame is connected with the hinge (12) at the zenith of the head part of the aircraft, and can rotate around the center of the hinge (12). When the aircraft flies within the flying range of the high angle of attack, the thin film support frame is popped up, a film chip realizes the self-excited vibration in airflow, produces the unsteady flow around the film chip and realizes the control of asymmetric vortex, thereby eliminating the lateral force; when the aircraft recovers the small angle of attack state, the retraction and extension mechanism retracts the support frame into a front body of a slender body. The device is applicable to the aircrafts with the head taper of less than 42 degrees and characterized by simple structure and reliable performance.

The invention relates to an eddy current generating device for controlling a lateral force of a large-incidence-angle slender body. A rotating mechanism is installed inside a conical head part of an aircraft, and the axis of the rotating mechanism is overlapped with that of the aircraft; a retraction jack is installed inside the conical head part of the aircraft and positioned between the rotating mechanism and the top end of the conical head part of the aircraft; a micro triangular wing in the retraction jack is arranged on the top end outside the conical head part of the aircraft. The micro triangular wing is driven by an electric telescoping rod to do telescoping movement along the axis direction of the aircraft. Unsteady weak turbulent flow generated by the micro triangular wing under the effect of airflow is used for performing the proportional control on the lateral force within the range of an angle of attack being 25 to 60 degree, and the control range of the lateral force coefficient is -3 to 3. The micro triangular wing can be withdrawn into the conical head part of the aircraft under the situations of zero lateral force and small lateral force, no additional resistance is produced, and the eddy current generating device is applicable to the aircraft with a taper angle being more than 30 degrees. The eddy current generating device has the characteristics of simplicity in structure, reliability in performance and the like.

The present invention relates to a nail clipper which comprises a slender body formed by an upper press lever and a lower press lever which are movably engaged, an upper cover and a lower cover which are respectively fitted onto the outer surfaces of the upper press lever and the lower press lever to form a slender etui, a lower blade which is movably pivotally engaged with one end of the upper press lever by means of a first pivotal axle, and an upper blade which is movably pivotally engaged with one end of the lower press lever by means of a second pivotal axle.

The invention relates to a parent fish culture method for varicorhinus macrolepis. The method comprises the steps of 1, performing flowing water culture; 2, modifying a fishpond; 3, screening out robust and complete parent fish with the slender body, and putting the screened parent fish into the fishpond which is cleaned and disinfected in advance for feeding; 4, reasonably matching bait of the parent fish; 5, periodically cleaning the fishpond. The parent fish culture method for varicorhinus macrolepis has the advantages that the parent fish is good in development in a wintering period, and the weight of the parent fish is increased obviously; the spring cave environment is simulated, and the gonad of the parent fish is developed to be fuller.

The invention relates to a foldable baby stroller which comprises a stroller frame with an unfolded state and a folded state, a locking mechanism for locking the stroller frame in the unfolded state,as well as front wheel assemblies and rear wheel assemblies respectively arranged at the bottom front parts and the bottom rear parts of the stroller frame, wherein the stroller frame comprises side brackets positioned at two sides of the stroller as well as bottom struts and rear struts which are connected and supported between the side brackets at the two sides and can be folded along the left and right directions of the stroller frame; and each side bracket comprises a front bracket, a push handle, a rear bracket, a seat post and a connecting and supporting rod, wherein the seat post can slide along the front bracket. Compared with a traditional stroller, the baby stroller provided by the invention has the advantages that each rear bracket and each seat post are formed by bending one rod, one rod integrates the functions of one rear bracket and one seat post of the traditional stroller, and thus the condition of interference among rods in a frame folding process can be reduced; by adopting the bottom struts and the rear struts, the baby stroller can be lifted to be folded from front, rear, left and right directions; and after the baby stroller is folded, a stroller body is slender, so that the baby stroller is especially suitable for being stored in a long and narrow space.

The invention relates to the field of interventional surgery robots, in particular to a control device of a slender body instrument. The device comprises: a linear driving part which is used for driving the slender body instrument to advance or retract; a rotation driving portion which is used for driving the slender body instrument to rotate axially; and a bottom support body which is used for stably supporting the linear driving part and the rotation driving part, wherein the bottom support body is internally provided with a power supply and a main control system module. In a radiation environment, the device can replace a doctor, is remotely manipulated by the doctor to assist in completing the vascular intervention operation, and avoids the injury to the doctor caused by radiation for a long time. The doctor does not need to wear heavy protective lead clothes for a long time, the injury to the bone system of the doctor is reduced, and the stability of the vascular intervention operation is ensured.