18results about How to "Avoid excessive force" patented technology

The invention relates to a force and position mixed sensing and control system and method for cataract ophthalmologic surgery. The method comprises the steps that a first adjusting parameter is calculated according to position and posture change data, collected by a position and posture collecting module, of an eyeball position and posture at the first moment; acquiring an actually measured contact force at a first moment acquired by a force sensor; acquiring puncture depth data of the surgical instrument at a first moment based on a pose acquisition module; inputting the puncture depth data into a preset puncture force model to obtain a predicted contact force; operating parameters of an admittance controller are adjusted according to the force error value of the actually measured contact force and the predicted contact force; outputting a second adjustment parameter based on the admittance controller according to the actually measured contact force; and inputting the initial operation instruction, the first adjustment parameter and the second adjustment parameter into a preset instruction adjustment model to generate a target operation instruction at a second moment. The ophthalmic surgical robot can adapt to diversified surgical scenes with high precision and low interference, and meanwhile, the operation accuracy and smoothness of the ophthalmic surgical robot and the safety of the ophthalmic surgery are considered.

The utility model relates to the technical field of optical communication testing, in particular to an insertion loss and return loss testing butt joint tool. Comprising a bottom plate, and a standard line positioning block is arranged on the bottom plate and used for positioning a standard line; a slide rail is arranged on the bottom plate, a slide block is arranged on the slide rail, and a test line positioning block is arranged on the slide block and used for positioning a test line; the slide block slides on the slide rail, so that the test line positioning block moves in the direction close to or away from the standard line positioning block; a mounting groove is formed in the standard line positioning block, and a standard line connector is arranged in the mounting groove; a limiting block is arranged on the standard line positioning block, an elastic piece is arranged on the limiting block, one end, far away from the limiting block, of the elastic piece abuts against the standard line connector, and the limiting block and the standard line connector are matched to release or extrude the elastic piece through sliding of the standard line connector in the mounting groove in the direction close to or far away from the test line positioning block. The method has the advantages that damage to the end face of the workpiece in the insertion loss test is reduced, and the test efficiency is improved.

The utility model discloses a PCB punching device which structurally comprises a workbench and pressing plates, PCBs are placed on a placing plate, a first motor drives a first lead screw to enable the pressing plates on the two sides to move inwards under the action of pushing force, the pressing plates enable the PCBs to be close to each other, attached to each other and clamped, and therefore the PCBs can be punched. And meanwhile, a second electric push rod at the upper end downwards pushes a lower pressing plate to downwards press the PCB again, so that the stability of the PCB during punching is better, the deviation condition is reduced, the condition that the PCB is damaged during pressing due to excessive stress can be prevented under the action of a first pressure sensor and a second pressure sensor, the safety is higher, and the production efficiency is improved. And a drill bit at the bottom end can move left and right under the condition that a second motor drives a second screw rod, and a stress sliding block can drive the drill bit to move front and back under the condition that a third motor drives a third screw rod, so that the punching work of different positions of the PCB can be realized, the working efficiency is higher, the time for manually adjusting the direction is saved, and the working progress is accelerated.

The utility model discloses an adjustable stirrer which comprises a bottom support, a driving rod detachably mounted above the bottom support, an adjusting rod mounted in the driving rod in a sliding manner, an adapter fixedly mounted at the bottom of the adjusting rod, a plurality of supporting rods mounted on the side wall of the adapter in a hinged manner, and a plurality of stirring rods mounted on the side wall of the bottom support in a hinged manner, one end of the supporting rod is movably connected with the stirring rod at the corresponding position; when the adjusting rod is pulled upwards, the multiple stirring rods are unfolded to be in an umbrella shape through the supporting rods, and when the adjusting rod is pushed downwards, the multiple stirring rods are folded through the supporting rods. The stirrer can penetrate through a pile hole and broach the bottom of the pile hole, conditions are provided for follow-up pile bottom construction, the problems that quicksand layer hole forming is difficult, hole collapse is prone to occurring, and sediment at the hole bottom is large are solved, the structure is simple and compact, and operation is convenient and fast.

The present invention discloses an oocyte collection device, which relates to the technical field of oocyte collection, including a guide probe, an oocyte collection needle, a negative pressure aspirator, and a collection container, wherein the collection container includes a constant temperature box and a collection tube arranged on the constant temperature box, which is used to store the aspirated oocyte in the collection tube and keep the activity of the oocyte at a constant temperature; and a B-ultrasound machine, which is connected to the guide probe through a connecting line to provide image guidance for the collection of oocytes. The present invention installs the oocyte collection needle on the upper end of the guide probe, guides the oocyte collection needle to puncture through the guide probe, and simultaneously arranges a clamping and propulsion mechanism for clamping the oocyte collection needle at the upper end of the guide probe, so as to realize rapid propulsion and fine-tuning propulsion of the oocyte collection needle, and avoids the operator from using too much force when using the oocyte collection needle to puncture the follicle, thereby puncturing the follicle, thereby ensuring the safety of oocyte collection.

The utility model relates to the technical field of hoist room construction, in particular to a bilateral balance type hanging basket device for hoist room facade construction, which comprises a moving mechanism mounted on a hoist room facade and in sliding fit with the hoist room facade, and hanging baskets respectively connected with the moving mechanism and positioned on the outer sides of two groups of parallel facades of a hoist room, the moving mechanism comprises a guide rail which is installed on the roof and arranged in the transverse direction and a connecting mechanism which is installed on the guide rail and connected with the two sets of hanging baskets. According to the utility model, two groups of external facades of the hoist room can be constructed simultaneously; the construction difficulty is greatly reduced, the construction efficiency is greatly improved, and the construction cost is reduced.

The utility model discloses a refrigerator cover plate stripping mechanism, including upper mould and lower mould, the inside of lower mould is provided with the cavity for refrigerator cover plate forming, the inside of lower mould is provided with stripping mechanism, and stripping mechanism includes ejection assembly, push assembly and adjustable linkage assembly, ejection assembly includes bottom plate, and the inside of bottom plate and lower mould is connected with sliding, and the bottom of cavity inner wall is provided with a plurality of recess, and the top of lower mould inner wall is provided with a plurality of with recess position corresponding round groove, the utility model relates to refrigerator parts production technical field. When the refrigerator cover plate stripping mechanism is to the stripping of refrigerator cover plate, through the process of stripping mechanism and upper mould mold opening linkage, thereby completes the stripping process to the refrigerator cover plate in the process of mold opening, improves the production efficiency of refrigerator cover plate, and through the setting of damper makes the stripping process can be stable, avoids the emergence of the situation of excessive jacking force, improves the practicality when the device uses.

The invention is applicable to the technical field of rehabilitation training instruments, and provides a finger rehabilitation treatment device which comprises an arm sleeve, a connecting support arm plate and a palm plate, the arm sleeve is used for sleeving a forearm, and the connecting support arm plate is mounted on one side of the outer part of the arm sleeve through a lifting mechanism and extends towards the palm direction; the palm plate is fixedly installed on the side, extending in the palm direction, of the connecting supporting arm plate, and the palm plate corresponds to the palm in position. And the finger moving mechanisms are mounted on the palm plate and are arranged according to a finger distribution mode. According to the finger rehabilitation treatment device provided by the scheme, by introducing the elastic force adjustable contraction mechanism, accurate control over finger treatment strength is achieved, the problem that in a traditional device, all parts of a plurality of fingers exert force unevenly is solved, and the treatment strength can be independently adjusted according to rehabilitation requirements of different fingers.

The invention relates to the technical field of medical instruments, and discloses a laparoscopic surgical instrument with an intelligent regulation and control function and an intelligent regulation and control method thereof.The laparoscopic surgical instrument with the intelligent regulation and control function comprises a mechanical operation part, a snake bone bending part, a tail end execution part, a mechanical transmission part and an intelligent regulation and control part; the mechanical operation part comprises a bent hand wheel; the snake bone bending part is connected with the mechanical operation part; the tail end execution part is connected with the snake bone bending part and is used for executing tissue separation, cutting and electrocoagulation operations; and the mechanical transmission part is connected between the bending hand wheel and the snake bone bending part. The intelligent regulation and control part is arranged, hand wheel operation is collected in real time through the pose sensing part, a pre-calibrated snake bone kinematics model is combined, the expected angle of the tail end execution part is accurately calculated, auxiliary torque or damping is applied to the bent hand wheel through the auxiliary regulation and control part, and transmission gaps, snake bone elastic deformation and hand shaking of a doctor are effectively compensated; and the positioning precision of the tail end can be improved.

This application relates to a balloon inflator, including a supporting balloon, a connecting tube, and supporting plates. The supporting balloon is connected end-to-end and forms an annular inner cavity for exposing the surgical field. One end of the connecting tube is connected to the supporting balloon, and the other end is used to connect to an external inflator. The connecting tube is used to inflate or deflate the supporting balloon. Two supporting plates are provided and conform to the outer wall of the supporting balloon, with the two supporting plates positioned opposite each other along the center of the supporting balloon. This application uses a flexible balloon inflator, which is more flexible than existing rigid mechanical structures. The supporting balloon is subjected to gas pressure all around, thus distributing the pressure evenly and avoiding excessive force on any one area. Furthermore, because it uses a balloon inflator, compared to a rigid mechanical structure, it has a larger expansion range and a smaller contraction range, making it suitable for more scenarios.

The present invention belongs to the technical field of pelvic floor rehabilitation treatment and nursing equipment, and discloses a pelvic floor rehabilitation treatment and nursing equipment, including a bed body, wherein a controller is arranged on an inclined surface on one side of the bed body; a groove is provided in the middle of one side of an upper end surface of the bed body, and an expansion and closing mechanism is arranged on both sides of the upper end surface of the bed body, and a pushing mechanism is arranged on one side of the bed body; the present invention is provided with a pressure plate, and during treatment with a treatment piece, the pressure plate can provide a support effect for the patient's legs, so that the legs will not experience support fatigue for a long time, and after the patient's legs are pressed to both sides, the leg posture presented can facilitate the treatment piece to enter the uterus easily and conveniently.

The utility model discloses a high-toughness thin-wall stainless steel pipe which comprises an outer pipe, the inner side face of the outer pipe is fixedly connected with a supporting frame, the outer surface of the supporting frame is fixedly connected with a filling layer, and one side of the inner side face of the supporting frame is fixedly connected with a buffering core. According to the high-toughness thin-wall stainless steel pipe, the supporting frame, the filling layer, the buffer core, the expansion joint, the pressure bearing layer, the carbon fiber layer and the graphene layer are arranged, the strength of the stainless steel pipe is improved through the supporting frame, the sealing performance of connection between the outer pipe and the supporting frame and connection between the inner pipe and the supporting frame are improved through the filling layer and the buffer core correspondingly, and the pressure buffering effect can be achieved; the two expansion joints prevent the problem that local stress of the stainless steel pipe is too large, the toughness and the anti-fatigue capacity of the stainless steel pipe are improved, the pressure bearing layer prevents force from being concentrated at one position to damage the stainless steel pipe, the carbon fiber layer has good tolerance and extensibility, the graphene layer can enhance the hardness of the stainless steel pipe, and the service life of the stainless steel pipe is prolonged. Therefore, the stainless steel pipe body is prevented from being bent.

The present invention relates to the field of medical models, and in particular to a shoulder joint mobilization training model. The model includes a shell module, a resistance adjustment module and an arm module, wherein the resistance adjustment module is arranged in the shell module, one end of the resistance adjustment module extends from the shell module and is rotatably connected to the arm module, and the resistance adjustment module includes a connection module and an adjustment module, wherein the connection module is used to connect the shell module and the arm module, and the adjustment module is used to apply resistance to the swing of the connection module. The present invention increases the rotation resistance of the shoulder joint and improves the precision of the simulated person by arranging a first resistance spring on the outer ring of the joint bearing, and uses a driving motor to drive the moving seat to move to adjust the tension and relaxation of the first resistance spring, thereby realizing the adjustment of the size of the rotation resistance of the shoulder joint, thereby simulating different types of shoulder joints and improving the simulation range of the model.

The utility model relates to the technical field of medical instruments, and discloses a balloon catheter nursing adjusting device which comprises a fixing frame, a first fixing clamp is fixedly connected to the top of the fixing frame, a moving assembly is arranged on the outer wall of the fixing frame, and a fixing assembly is arranged on one side of the fixing frame. The moving assembly comprises a sliding groove. The balloon catheter nursing adjusting device is provided with the sliding groove, the fixing bearing, the lead screw, the fixing handle, the sliding block, the threaded groove and the second fixing clamp, the near end and the far end of a balloon catheter can be directly buckled through the first fixing clamp and the second fixing clamp, the balloon catheter can be conveniently clamped and fixed, the lead screw is driven to rotate by rotating the fixing handle, and the balloon catheter can be conveniently and rapidly nursed. Therefore, the sliding block drives the second fixing clamp to move, the movement of the second fixing clamp can be accurately controlled, the problem of excessive force or insufficient force possibly caused by manual pushing is avoided, and the requirements of people are met.

The utility model relates to toothbrush's technical field especially relates to a kind of antiskid gingival protection toothbrush, including toothbrush main body, the deformed limiting structure being set on toothbrush main body, toothbrush main body is equipped with opposite press side and back side, and the first recess towards press side, and the second recess being communicated in the outside of first recess, first recess is in the side of deformed limiting structure, second recess extends to the outside of deformed limiting structure, second recess is equipped with antiskid piece, and antiskid piece is equipped with the extension corresponding with first recess. Extension is correspondingly arranged in first recess, and then the thickness of soft material corresponding to thumb pressing position in antiskid piece is increased, the hand feeling of user holding toothbrush is optimized, it is favorable to alleviate the force consciousness of user, reduce the force requirement of user, avoid that user brushes teeth and leads to gingival to be easily damaged when excessive force, increase the elasticity and softness at press side simultaneously, improve the holding comfort of user.

The utility model discloses a novel relay contact point elastic structure device belongs to relay technical field, including the casing, the casing is installed with the contact piece, one side of contact piece is installed with the swing board, one side fixed connection of swing board has the mounting block, the elastic device of assembly in mounting block outside, the locking device of assembly in mounting block with casing is inside. In the utility model, first hook loses or obtains the pulling force according to the electromagnetic attraction effect, at this moment, the round plate on the slide bar and the sleeve baffle synchronous movement are driven, when being in the closed state, the baffle is located above the connecting shell, can limit the elastic force of reset spring, thereby avoiding the contact point closing and the force too violent, and when being in the open state, the round plate moves down to the inside of connecting shell, also can limit the elastic force of reset spring, avoid the contact point strong rebound time too long because of the elastic force release too fast, thereby reduce the contact point damage risk, improve the reliability and stability of relay work.

The invention discloses a wood planing power assisting device and wood planing equipment, and relates to the technical field of woodworking auxiliary equipment. The wood planer comprises a base and a wood planer body, a mounting plate is mounted on the base, a power module and a control module are mounted on the mounting plate, and the power module is electrically connected with the control module; a hook is detachably installed at the front end of the wood plane body, and a traction cable is connected to the hook. Through mutual cooperation of the power module, the control module, the traction rope and other structures, the driving motor can be started according to the applied pressure of a worker to drive the driving wheel to rotate, and the traction rope is pulled and wound, so that assistance is carried out when the wood planer main body is used for planing, the labor intensity of the worker is conveniently reduced, and in addition, the working efficiency is improved. And the control module can automatically adjust the output of the motor according to the applied force, so that the accuracy of fine planing is ensured, and the phenomenon of excessive force or sudden out-of-control in the operation of a traditional planing tool is avoided.