126 results about "Penetration force" patented technology

An improved luer lock receiving septum having a configuration which provides rapid and tight resealing and yet allows penetration of the septum by the luer tip with a low penetration force. The elongated septum includes an upper portion of enlarged diameter having a target surface, a central slit, and a central, lower septum extension projecting about the slit below the upper portion and into a housing so that following luer insertion there is provided sufficient room for both the laterally displaced extension of the septum, the luer taper, and the housing to be received into a conventional luer lock connector. The septum is further preferably configured to minimize or eliminate the negative pressure deflection normally associated with the withdrawal of the large diameter luer cannula from an enclosed fluid filled lumen or chamber, by substantially isolating the lumen or chamber from the septum material displacement resultant from luer insertion. In an exemplary embodiment, the luer receiving septum is provided at a port of a stop cock.

A surgical obturator comprising an elongate shaft extending along an axis between a proximal end and a distal end, and a bladeless tip disposed at the distal end of the shaft having a conical surface forming proximally into an outer surface, the outer surface extending distally to a blunt point and having a pair of side sections. The side sections extend from the blunt point radially outwardly with progressive positions proximally along the axis. The conical surface facilitates insertion of the obturator with a reduced penetration force and minimizes tenting of the body wall. The conical surface further facilitates separation of different layers of the body wall and provides proper alignment of the tip between the layers. The surgical obturator may be constructed from a disposable or reusable material such as a metal or an autoclavable polymer.

A trocar obturator includes a shaft having a proximal end and a distal end. The trocar obturator also includes a tip positioned at the distal end of the shaft, the tip including a distally extending blade structure adapted to reduce penetration forces required during insertion of the trocar obturator. The blade structure includes a first cutting edge and a second cutting edge.

A medical device for reducing the force necessary to penetrate living being tissue using a variety of reciprocating motion actuators, including piezoelectric, voice coil, solenoids, pneumatics or fluidics. The reciprocating actuator drives a penetrating member, such as a needle, through the tissue at a reduced force while the device detects the passage of the penetrating member through the tissue. Upon passage of the penetrating member through the tissue, electrical power to the reciprocating actuator is automatically terminated. One exemplary method for detecting this passage is via a fluid-containing syringe that is coupled to a channel within the penetrating member.; Once the penetrating member tip has passed through the living tissue, the fluid within the syringe no longer experiences any pressure and a plunger within the syringe displaces indicating passage of the penetrating member tip. This motion can provide direct tactile feedback to an operator of the medical device or can automatically open a switch providing electrical power to the medical device. Alternatively, a pressure transducer can also monitor the pressure within the penetrating member channel and automatically activate the switch to cut off the electrical power.

A surgical obturator comprising an elongate shaft extending along an axis between a proximal end and a distal end, and a bladeless tip disposed at the distal end of the shaft having a conical surface forming proximally into an outer surface, the outer surface extending distally to a blunt point and having a pair of side sections. The side sections extend from the blunt point radially outwardly with progressive positions proximally along the axis. The conical surface facilitates insertion of the obturator with a reduced penetration force and minimizes tenting of the body wall. The conical surface further facilitates separation of different layers of the body wall and provides proper alignment of the tip between the layers. The surgical obturator may be constructed from a disposable or reusable material such as a metal or an autoclavable polymer.

A stir-friction hot-working or welding arrangement uses a pin tool having a ligament 22 and a shoulder 224. The force required for incremental penetration increases markedly when the shoulder is reached. A control system for maintaining a set penetration depth includes a load cell for measuring force or pressure applied to the pin tool. The control system compares a reference signal representing the desired force with the actual force from the load cell, to produce an error signal which controls the penetration force, thereby tending to maintain a desired penetration depth. In a particular embodiment, the reference signal ramps up from a low or zero value at turn-on, to reduce forces applied upon initial penetration. In another embodiment, position signals are used to control a modulator or multiplier, which changes the error signal applied at certain positions of penetration, or at certain velocities of penetration.

An arrangement for sinus evacuation and for taking a sample of bone marrow during a bone marrow aspiration procedure as well as a bone marrow biopsy procedure. By applying a longitudinal movement to the needle when the needle is penetrating the bone the penetration force is reduced which lower the risk of penetrating the posterior cortex or the second sinus wall. The arrangement further includes a stopping element that prevents the needle to penetrate deeper than to a predetermined depth. The arrangement further includes longitudinal movement a stopping element that provides for an active break of the longitudinal movement of the needle when the needle has penetrated down to the predetermined depth.

The invention provides a capillary crystalline waterproofing material which comprises silicate cement, quartz sand, a crystal master batch, latex powder, other active materials, and the like, whereinthe ratio of aggregate cement to the quartz sand is 1:1.89; the crystal master batch is dehydrated gypsum or calcium chloride, and the like; and the proportion of the crystal master batch is between 3percent and 7 percent. The waterproofing material has the bonding force, the surface adhesive force, quantities of formed crystals, the strength and the anti-penetration force of concrete and can ensure that concrete structures cannot be damaged. The capillary crystalline waterproofing material has wide range of application, is applied to projects of basements, civil air defenses, tunnels, ports,wharfs, swimming pools, dams, irrigation ditches, and the like, solves the problems of concrete projects, achieves the purpose of permanent water proofing and also protects concrete and reinforcing steel bars from corrosion.

The invention relates to a sprinkler or a spray head comprising a housing (2), an inlet (3), a nozzle (4) mounted in the housing, a passage (17-18-13) from the inlet to the nozzle, and a holder (8) for a release means, the holder being mounted in front of the nozzle so that it prevents the nozzle from spraying extinguishing medium forward without hindrance, the nozzle being arranged to spray extinguishing medium once the release means has been released. The holder (8) is mounted in the housing (2) by means of a locking mechanism, which is arranged to open and release the holder (8) from the housing once the release means (7) has been released. To allow efficient and forceful spraying of the extinguishing medium without that the holder stands in the way, reducing the momentum and penetration force of the jet, and to safeguard the operation, the spinkler or spray head comprises a spindle (9) which is arranged to move in the housing (2) from a first position, in which the spindle is arranged to close the passage (17-18-13) to keep the nozzle (4) closed, to a second position, in which the spindle is arranged to open the passage to keep the nozzle open, when the release means is being released, the spindle being arranged to exert a force on the locking mechanism and to open the locking mechanism when the spindle is moved toward the holder (8) into the second position, whereby the nozzle (4) can forcefully spray the extinguishing medium forward essentially without hindrance.

Disclosed is a direct-injection spark-ignition engine designed to promote catalyst activation during cold engine operation. A fuel injection timing for a fuel injection period in an compression stroke (second fuel injection period F2) is set to allow a first fuel spray Ga injected from a first spray hole 40a to enter a cavity 34 in a piston crown surface 30, and allow a second fuel spray Gb to impinge against a region of the piston crown surface 30 located closer to an injector than the cavity 34, so as to cause the second fuel spray Gb having a lowered penetration force due to the impingement to be pulled toward the cavity 34 by a negative pressure generated in the cavity 34 as a result of passing of the first fuel spray Ga therethrough. The direct-injection spark-ignition engine can maximally hold an injected fuel spray around a spark plug to reliably stabilize a combustion state in a combustion mode for promoting catalyst activation during cold engine operation, while enhancing combustion efficiency in a homogenous combustion mode during normal engine operation.

The invention discloses a method for testing grading broken stone CBR numerical value. According to the invention, a physical model and a mechanical model are established for simulating the grading broken stone CBR test, the method comprises the following steps: testing basic parameters, simulating of a CBR testing model, test pieces, a load plate, a CBR pressure head and the like, endowing the physical model with micro mechanics parameters, simulating a loading process of CBR test, finishing an arrangement of the simulation result to obtain the relational curve of the pressure head penetration rate and the penetration force, and obtaining the penetration force corresponding to a penetration rate of 2.5 mm according to the relational curve of the penetration rate and the penetration force. According to the invention, the grading broken stone CBR value can be rapidly and accurately predicted by the method, and a change rule of grading broken stone stress-strain can be represented.

The invention provides a method for cleaning an optical lens. Based on concentration percentage, the method is characterized by comprising the following steps of: 1) preparing strong alkali and an alkali-resistant surfactant; 2) preparing weak alkali and a surfactant which can work in the weak alkali; and 3) cleaning the lens. The method for cleaning the optical lens has characteristics of high washing force and low foaming by using the strong penetration force and the biodegradable characteristic of heterogeneous alcohol polyoxyethylene ether and secondary alcohol polyoxyethylene ether in combination with an organic solvent with high boiling point and alkali substances, is suitable for washing a large mass of lenses, and simultaneously does not swell the lenses. The strong alkali surfactant is used for dissolving substances of organics and releasing agents on the surfaces of the lenses; and the weak alkali surfactant is used for removing micro residues from the surfaces of the lenses by the superstrong penetration force.

The application provides a method and a device for ultrasonic imaging as well as ultrasonic imaging equipment. The method comprises the following steps: a control excitation component applies coded excitation of different frequencies to each array element in an ultrasonic probe, so as to enable each array element to utilize the applied coded excitation for producing and emitting ultrasonic signals; ultrasonic echo signals returned by the ultrasonic probe are received; the coded excitation applied to each array element is utilized for decoding the corresponding ultrasonic echo signals; and beam forming is carried out after the decoded ultrasonic echo signals are weighted, so as to obtain beam forming signals and display ultrasonic images according to the beam forming signals. Through the way of applying the coded excitation of different frequencies to each array element, the invention can increase the energy carried by the ultrasonic signals, promote the penetration force, enable the received ultrasonic echo signals not to interfere with each other and improve the image contrast. The image resolution is also improved by adopting the weighting method for beam forming.

The invention belongs to the field of surface reinforcement of agricultural machinery components and parts, and specifically relates to a process for repairing and reinforcing surfaces of the agricultural machinery components and parts by plasma spray welding. A plasma spray welding process is employed to perform plasma spray welding treatment on the surfaces of the agricultural machinery components and parts without reducing performances such as harness, wear resistance and the like of the surfaces of the components and parts, so as to achieve an object that an agricultural machine has original mechanical properties and prolonged service life of the agricultural machinery. The plasma arc is used as a heat source to spray specific alloy powder for welding; the alloy powder is melt and coated on the surface of gold to form an alloy metal coating directly. The metal coating coated by the specific powder has excellent properties of no crack, high hardness, wear resistance, corrosion resistance, etc. By accurately controlling a welding penetration force during the coating process, microfused dilution rate on the surface of the metal is low without changing metal structures of the components and parts, no harmful residual stress is produced and the process is suitable for repairing the agricultural machinery components and parts.

A ripper assembly includes a beam assembly with a central ripper shank and tip flanked by a left linkage and a right linkage. In order to improve visibility of the central ripper shank and tip from an operator station of a track type tractor, the left linkage and the right linkage are unconnected to each other, except via the beam assembly. Without cross bracing between the left and right linkages, the beam assembly and individual linkages are configured to absorb side and twisting loads that may occur during production ripping. The ripper assembly left and right linkages may be of a fixed or variable parallelogram design. The hydraulic actuator(s) of the ripper assembly are configured to extend when moving to a dig position to provide a high penetration force. Part of the ripper assembly linkage shares a common pin with its associated hydraulic actuator. The ripper assembly may utilize a structurally efficient common pin shared between the beam assembly, lower link and hydraulic actuator on each side of the assembly.

A control unit is used for controlling a direct fuel injection type internal combustion engine. The control unit controls a fuel injection valve to have a first fuel injection mode wherein a penetration force of an injected fuel sharply increases at an initial stage of a fuel injection and thereafter an increasing rate of the penetration force gradually lowers with passage of time and a second fuel injection mode wherein the penetration force of the injected fuel sharply increases at a middle stage of the fuel injection. The control unit further controls the fuel injection valve in a manner to switch the first and second fuel injection modes in accordance with an operation condition of the engine.

A method for detecting mechanical features of a material, in particular a metal material, provides a preliminary step where a database is created containing a finite number of reference curves (P,h) (52). Such curves are obtained using a finite elements analysis and reproduce the trend of the applied force (P) responsive to the penetration depth (h) during an indentation test. The reference curves (P,h) are obtained for a determined number of different materials having a known elastic modulus E, and values of yield stress (σsn) and strain-hardening coefficient (n) comprised within determined ranges. The tested sample is then arranged at an indenter, for example a ball indenter (52), for being subject to an indentation test. This is started to cause a graduated penetration of the indenter in the material subject to analysis (53). During the indentation test the penetration depth (h) responsive to the penetration force (P) are measured, and a succession of measured couples (P,h) (54) is then recorded. Such couples of determined values (P,h) are then computed (55), in order to extrapolate from the database at least one reference curve (P,h), for example by a least squares method (56).

The invention provides a testing device of concrete setting time, comprising a platform [18] of a testing table for positioning and placing a sample cylinder; a three-dimensional operation bracket [14] is arranged on the testing table, a penetration probe holding head [5] is installed on the bracket, a penetration probe [1] is placed on a reserve frame [2] of the testing table before / after use. A computer system controls the three-dimensional operation bracket so that the holding head practices the probe taking and placement in relative to the reserve frame and the penetration operation specific to the sample cylinder according to the penetration frequency and penetration point, and automatically controls and judges initial and final setting times. Compared with the prior art, the invention provides a completely automatic operated testing device of concrete setting time so as to guarantee the exact penetration speed, automatic sampling and recording of penetration force through a force sensor, and avoid influencing on accuracy of test data by the mistake; the testing device can automatically calculate and judge the testing result and process; particularly, the penetration probe can be automatically replaced; the testing device no needs for manual duty.

A horizontal resistance of an underwater pile is measured using a horizontal load applying apparatus which applies a horizontal load to the underwater pile to measure a horizontal resistance of the underwater pile by changing a direction of a penetration force generated when a suction pile penetrates an underwater ground.

The invention discloses a whitening cosmetic which contains an A ingredient, a B ingredient and a C ingredient; wherein, A ingredient contains emulsifying agent, grease and antioxidant; B ingredient contains hexagonal water, humectant and stabilizer; C ingredient contains various types of whitening ingredients and natural effective nutrition moisture retention ingredients. The invention also discloses the preparation method of the whitening cosmetic, which includes the steps: 1) A and B phases are respectively added into an oil pot and a water pot and heated under 80-85 DEG C until the mixture is dissolved completely; 2) A and B phases are respectively sucked into an emulsifying pot to be vacuumized, stirred, homogenized for 5-8 min and processed with moisture retention for 20-30 min, then C phase is added and homogenized for 3 min; then the mixture is defoamed and cooled, stirred, dispersed and homogenized and discharge under 35 DEG C. the whitening cosmetic adopts the formulation of large quantity of effective whitening ingredients and nutritional moisture retention ingredients to improve the penetration force of the whitening ingredients and enable the whitening ingredients to be absorbed by skin easily, so as to improve the whitening effect; meanwhile, the preparation process is simple and the stability is good.

Disclosed is a direct-injection spark-ignition engine designed to promote catalyst activation during cold engine operation. A fuel injection timing for a fuel injection period in an compression stroke (second fuel injection period F2) is set to allow a first fuel spray Ga injected from a first spray hole 40a to enter a cavity 34 in a piston crown surface 30, and allow a second fuel spray Gb to impinge against a region of the piston crown surface 30 located closer to an injector than the cavity 34, so as to cause the second fuel spray Gb having a lowered penetration force due to the impingement to be pulled toward the cavity 34 by a negative pressure generated in the cavity 34 as a result of passing of the first fuel spray Ga therethrough. The direct-injection spark-ignition engine can maximally hold an injected fuel spray around a spark plug to reliably stabilize a combustion state in a combustion mode for promoting catalyst activation during cold engine operation, while enhancing combustion efficiency in a homogenous combustion mode during normal engine operation.

A clamping and ligation device, comprising a ligation unit (10), a conveying unit (20), a protective sleeve (30), a connecting unit (40), a operation unit (50), and a traction unit (60); the connecting unit (40) connects the conveying unit (20) with the ligation unit (10), and can be disengaged to separate the conveying unit (20) from the ligation unit (10); the traction unit (60) controls the ligation unit (10) via push and pull movement; the end of the traction unit (60) connected to the ligation unit (10) is breakable, so that the traction unit (60) can be broken away from the ligation unit (10) under a definite force; the protective sleeve pipe (30) can accommodate the whole ligation unit (10) therein, thus, during endoscope penetration, avoiding the damage to the endoscope tube wall and the increase of penetration force.

To supply a method that enables the inclination of the injection direction and the distribution of the penetration force of spray to be adjusted over a wide range, and an axially symmetrical spray shape to be obtained even when the injection hole is inclined, or the shape of the spray to be changed without inclining the injection hole. To provide a fuel passageway 203 as a swirling force adjustment means between the valve seat 201 and injection hole 101 of the fuel injector. This swirling force adjustment means adjusts the distribution of the swirling force of the fuel flowing into injection hole 101, and thus adjusts the spray shape obtained as a result.

A control unit is used for controlling a direct fuel injection type internal combustion engine. The control unit controls a fuel injection valve to have a first fuel injection mode wherein a penetration force of an injected fuel sharply increases at an initial stage of a fuel injection and thereafter an increasing rate of the penetration force gradually lowers with passage of time and a second fuel injection mode wherein the penetration force of the injected fuel sharply increases at a middle stage of the fuel injection. The control unit further controls the fuel injection valve in a manner to switch the first and second fuel injection modes in accordance with an operation condition of the engine.

A fuel injection nozzle for a diesel engine. The fuel injection nozzle may include a plurality of injection hole groups, each having two injection holes respectively. A distance between the two injection holes, an angle between longitudinal axes of the two injection holes and an angle between horizontal axes of said two injection holes of each injection hole group are each set such that fuel sprays injected from said two injection holes will form a single fuel spray cloud after the fuel sprays collide with a side wall of a combustion chamber formed in a top surface of a piston of the engine, and such that the distance between collision points of the fuel sprays will be in a predetermined range in which a penetration force of said fuel spray cloud along a longitudinal direction of said combustion chamber received after collision with said wall of said combustion chamber is at or near a predetermined maximum value.

To enable the inclination of the injection direction and the distribution of the penetration force of spray to be adjusted over a wide range, and an axially symmetrical spray shape to be obtained even when the injection hole is inclined, or the shape of the spray to be changed without inclining the injection hole, a fuel passageway 203 is provided as a swirling force adjustment means between the valve seat 201 and injection hole 101 of the fuel injector. This swirling force adjustment means adjusts the distribution of the swirling force of the fuel flowing into injection hole 101, and thus adjusts the spray shape obtained as a result.

The invention discloses a deinking agent. The deinking agent is prepared from components in percentage by weight as follows: 20%-25% of a stripping agent, 8%-20% of a penetrating agent, 8%-12% of a stabilizer, 0.1%-0.3% of a chelating agent, 2%-8% of a surfactant and the balance of water, wherein the surfactant is obtained through esterification modification with succinic acid after an amidation reaction of plant oil and organic base. Compared with the prior art, the deinking agent enhances the penetration force for ink containing resin ingredients under the synergistic effect of the penetrating agent, the stripping agent, the stabilizer, the surfactant and enzymes, so that the ink is softened, stripped and shed, the deinking speed is greatly increased, the dosage of petroleum-based solvents is reduced, and the deinking agent is low in volatility, high in safety, environment-friendly and non-toxic.

The invention relates to a umbilical therapy device, which includes an umbilical therapy box, an electric heater and a medicinal magnetic bag lining pad, the umbilical therapy box is used for containing the electric heater and the medicinal magnetic bag lining pad, a medicinal magnetic bag is arranged on the medicinal magnetic bag lining pad, medicine is arranged in the medicinal magnetic bag, the ingredients of the medicine include pricklyash peel, haiercha, fennel fruit, pepper, hedgehog hide, Chinese magnoliavine fruit, dahurian angelica root, round cardamom fruit and magnetite, the medicine is transdermally absorbed and combined with the magnetic therapy and the thermal therapy, the medicine is directly acted on the intestine by passing through the umbilical point, all the ingredients can achieve the effects of warming spleen and stomach, relieving diarrhea with astringents, resolving food, removing expansion and relieving pain; the hot compression performs the effects of warming spleen and stomach, activating collaterals, dispelling cold, stopping pain and promoting telangiectasia; and the magnetic therapy performs the effects of dredging meridians and anti-inflammation. The combination of the three therapies increases the umbilical penetration force of the medicine, the functions of the medicine, the magnet and the heat are overlapped, thereby being applicable to the treatment of non-infectious diarrhea and indigestion of children; compared with the single therapy, the efficacy is improved, the transdermal absorption of the medicine is greatly improved and the treatment effects are improved.