CN113288220B

CN113288220B - Percussion hammer for medical neurology department

Info

Publication number: CN113288220B
Application number: CN202110706897.XA
Authority: CN
Inventors: 王玉祥; 孔令红; 石安涛
Original assignee: Individual
Current assignee: Wang Yuxiang
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2022-07-19
Anticipated expiration: 2041-06-24
Also published as: CN113288220A

Abstract

The invention relates to the technical field of medical instruments, in particular to a percussion hammer for medical neurology department; the invention comprises a reset assembly and a driving assembly, wherein the reset assembly comprises a hinged support, a hinged head, a hinged shaft, a mounting box, a transverse plate, a coil spring device and a box cap, the hinged support is rotatably connected with the hinged head through the hinged shaft, the mounting box is fixed on the hinged support, the transverse plate is fixed on a shaft body of the hinged shaft extending into the mounting box, two coil spring devices are arranged on the bottom wall of the mounting box, flexible belts are arranged at the end parts of the transverse ends of the transverse plate and are respectively connected with a spring in the corresponding coil spring device, the box cap is detachably fixed on the mounting box, a limiting assembly for limiting the transverse plate to rotate is arranged on the box cap, the driving assembly comprises a measuring disc, a connecting rod, a swinging arm and a driving spring, a clamping assembly for limiting the swinging arm to rotate is arranged on the driving assembly, and a transmission assembly for changing the state of the limiting assembly is arranged on the connecting rod; the invention can effectively solve the problems of poor inspection accuracy, poor sanitation and the like in the prior art.

Description

Percussion hammer for medical neurology department

Technical Field

The invention relates to the technical field of medical instruments, in particular to a percussion hammer for medical neurology department.

Background

The percussion hammer is an instrument for examining the reflection of the nerve and muscle of a doctor, which is composed of an eraser and a wood or metal handle, and when in use, the relevant part is lightly tapped by the end of the eraser to observe the reflection of the nerve and muscle.

The utility model discloses a percussion hammer in application number CN202022087511.5 promptly, which comprises a handle, the rubber stick, the check valve, drainage mechanism, the atomizer, moving mechanism, actuating mechanism, the switch, the lithium cell, a spring, this percussion hammer is used in orthopedics doctor's detection, medical personnel are through the use to actuating mechanism, make drainage mechanism spray the antiseptic solution to the position that the rubber stick contacted with the patient, aseptic nature before the use of rubber stick has been ensured to this, therefore can know, through using the device in this application, can avoid appearing bacterium cross infection's incident emergence between patient and the patient, play the guard action to the patient.

However, the following disadvantages still exist in the practical use process:

first, the examination accuracy is not good because the doctor cannot accurately grasp the strength of the percussion hammer to the joint, so that it is difficult to accurately know the degree of damage at the joint of the patient in the preliminary examination.

Secondly, the hygiene is not good because the doctor needs to inject the disinfectant into the handle frequently and needs to press the trapezoidal plate with a lot of effort, and the sterilized rubber rod is not completely dry, so that it cannot be sterilized completely.

Disclosure of Invention

The present invention is directed to solving the problems of the prior art, and the problems set forth in the background above.

In order to achieve the purpose, the invention adopts the following technical scheme: a percussion hammer for medical neurology department comprises a reset component and a driving component;

the resetting component comprises a hinged support, a hinged head, a hinged shaft, a mounting box, a transverse plate, spring coiling devices and a box cap, wherein the hinged support is rotatably connected with the hinged head through the hinged shaft, the hinged head and the hinged shaft keep synchronous movement, the mounting box is coaxially fixed on the hinged support, the transverse plate is fixed on a shaft body of the hinged shaft extending into the mounting box, the two spring coiling devices are symmetrically arranged on the bottom wall of the mounting box, flexible belts are arranged at the end parts of the two transverse ends of the transverse plate and are respectively connected with a spring in the corresponding spring coiling devices, the box cap is detachably fixed on the mounting box, and a limiting component for limiting the transverse plate to rotate is arranged on the box cap;

the driving component comprises a measuring disc, a connecting rod, a swinging arm and a driving spring, a coaxial rotating table is arranged on the bottom disc surface of the measuring disc at the circle center, the edge of the bottom plate surface of the measuring dial is provided with a cover wall, one end of the swing arm is rotatably connected on the rotating platform, a stroke groove matched with the rotation path of the swing arm is arranged on the cover wall, the end part of the swing arm positioned at the outer side of the cover wall is detachably fixed with a hammer body, the two sides of the swing arm in the cover wall are both provided with a bent driving spring, the end parts of the driving springs are both provided with mounting plates, the two mounting plates on the same driving spring are respectively fixed with the side wall of the swing arm and the non-arc-shaped inner side wall of the cover wall, the two ends of the connecting rod are respectively fixedly connected with the measuring disc and the hinge head, under the premise that the states of the two driving springs are the same, the projection of the connecting rod and the projection of the swing arm on the surface of the measuring disc are in a reverse collinear relationship;

the driving assembly is further provided with a clamping assembly used for limiting the swing arm to rotate, and the connecting rod is further provided with a transmission assembly used for changing the state of the limiting assembly.

Furthermore, the hinged support is fixed on the telescopic fixing rod, an Contraband-shaped clamp is arranged at the end part of the fixed end of the telescopic fixing rod, and a locking bolt matched with the clamp is arranged on the Contraband-shaped clamp; the side wall of the box cap is symmetrically provided with a group of screw grooves, and the screw grooves are all screwed with tightening bolts matched with the screw grooves.

Furthermore, the Contraband type presss from both sides the inner wall on evenly covered with a layer slipmat, the head of locking bolt and puller bolt all is equipped with the activity head that cooperates with each other, all be equipped with a layer of skid resistant course on the active surface of activity head.

Furthermore, the limiting assembly comprises a sliding block, a cam, a limiting spring and a baffle plate, wherein strip-shaped grooves with middle-shaped sections are symmetrically formed in the top of the box cap along the diameter direction of the top of the box cap, the depth values of the strip-shaped grooves are equal to the thickness value of the upper bottom wall of the box cap, the sliding block is connected in the strip-shaped grooves in a sliding manner, the cam is detachably fixed on the sliding block outside the box cap, the number of the limiting springs is one, the limiting springs are arranged in the strip-shaped grooves, two ends of each limiting spring are respectively fixed with the inner walls of the sliding block and the strip-shaped grooves, shaft grooves are formed in the side walls of the strip-shaped grooves on two sides in the stroke direction, the shaft grooves are rotatably connected with the support shafts, and the baffle plate is fixedly connected with the support shafts; when the sliding block props against the baffle plate to enable the plate surface of the sliding block to be perpendicular to the bottom wall of the box, an angle is formed by rotating the box cap, so that the plate surface of the baffle plate is just attached to and abutted against the plate surface of the transverse plate.

Furthermore, the symmetry axis of the cam is parallel to the stroke direction of the strip-shaped groove, and the projection of the symmetry axis of the cam on the bottom wall of the box cap is a symmetry axis of the projection of the strip-shaped groove on the bottom wall of the box cap.

Furthermore, the clamping assembly comprises an inverse rack, a stop lever, a rectangular block and a handle, wherein two inverse racks with opposite directions are symmetrically arranged on the outer ring side wall of the lower end of the stroke groove of the cover wall, an obtuse angle is formed between inverse teeth at the connecting point of the two inverse racks, a rectangular groove penetrates through a rod body of the swing arm outside the cover wall, the rectangular block is connected in the rectangular groove in a sliding manner, the handle is fixed at the top end of the rectangular block, the stop lever is fixed on the rectangular block, and when the stop lever is contacted with the swing arm, the end part of the stop lever close to the measuring dial is clamped between the teeth on the inverse racks;

the transmission assembly comprises a gamma-shaped arm and a round head, an arc-shaped groove matched with the rotating track of the swing arm is further formed in the disc body of the measuring disc, one end of the gamma-shaped arm is fixedly connected with the swing arm through the arc-shaped groove, the round head is arranged at the end of the other end of the gamma-shaped arm, and when the two driving springs are in the same state, the limiting assembly does not obstruct the movement of the transverse plate.

Furthermore, an indexing disc is coaxially arranged on one side of the hinged support, which is different from the side where the mounting box is arranged, and angle scale marks are uniformly etched on the disc surface at the upper end of the indexing disc; force scale marks are evenly etched on the disc surface at the upper end of the measuring disc; and indicating arrows are etched on the rod body at the position of the swing arm corresponding to the force scale mark and the rod body at the position of the connecting rod corresponding to the angle scale mark.

Further, the midpoint of the force scale line is its zero point; the numerical value on the force scale line means the impulse force of the action end of the hammer body when the swing arm is released from the angle and reaches the zero point.

Furthermore, the two ends of the hammer body are respectively detachably fixed with rubber heads with different models, the positions, close to the rubber heads, of the hammer body are provided with inserting grooves matched with the ends of the free ends of the swing arms, and pressing type elastic self-locking mechanisms matched with the ends of the free ends of the swing arms are arranged inside the inserting grooves.

Further, the length of the hammer is at least 1.5 times the diameter of the measuring disk.

Compared with the prior art, the invention has the advantages and positive effects that,

in the invention, a reset component and a driving component are added; the resetting component comprises a hinged support, a hinged head, a hinged shaft, a mounting box, a transverse plate, a spring coiling device and a box cap, wherein the hinged support is rotatably connected with the hinged head through the hinged shaft, the hinged head and the hinged shaft keep synchronous movement, the mounting box is fixed on the hinged support, the transverse plate is fixed on a shaft body of the hinged shaft extending into the mounting box, two spring coiling devices are symmetrically arranged on the bottom wall of the mounting box, the end parts of the transverse ends of the transverse plate are respectively connected with a spring in the corresponding spring coiling device through flexible belts, the box cap is detachably fixed on the mounting box, and a limiting component for limiting the transverse plate to rotate is arranged on the box cap; the driving assembly comprises a measuring disc, a connecting rod, a swing arm and a driving spring, wherein the measuring disc is provided with a rotating table and a cover wall, one end of the swing arm is rotatably connected to the rotating table, the cover wall is provided with a stroke groove matched with a swing arm rotating path, the end part of the swing arm, which is positioned at the outer side of the cover wall, is detachably fixed with a hammer body, the two sides of the swing arm, which are positioned in the cover wall, are respectively provided with the driving spring, and the two ends of the connecting rod are respectively fixedly connected with the measuring disc and a hinged head; the driving assembly is also provided with a clamping assembly for limiting the rotation of the swing arm, and the connecting rod is also provided with a transmission assembly for changing the state of the limiting assembly; the hinged support is fixed on the telescopic fixed rod, an Contraband-shaped clamp is arranged at the end part of the fixed end of the telescopic fixed rod, a locking bolt matched with the Contraband-shaped clamp is arranged on the Contraband-shaped clamp, an indexing disc is coaxially arranged on the side, different from the side where the mounting box is located, of the hinged support, and angle scale marks are uniformly etched on the disc surface of the upper end of the indexing disc; force scale marks are evenly etched on the disc surface at the upper end of the measuring disc; the rod body of the swing arm corresponding to the position of the force scale mark and the rod body of the connecting rod corresponding to the position of the angle scale mark are both etched with indicating arrows.

Thus, a doctor can fix the product on an examination bed on which a patient sits by matching the telescopic fixing rod, the Contraband-type clamp and the locking nut, then the doctor rotates the swing arm to a specified angle according to the force required for knocking (the round head does not apply force to the cam at the moment, and the stop lever is clamped with the reverse rack at the moment), then the doctor rotates the connecting rod to the specified angle, then the doctor presses the handle to enable the stop lever to be separated from the reverse rack, the swing arm rotates under the action of the driving spring at the moment, and when the swing arm passes through the zero point of the force scale mark, the round head can push the cam open, so that the transverse plate can push the baffle open to rotate under the action of the spring coiling machine; namely, at the moment when the hammer body is knocked to the joint of the patient, the connecting rod is rapidly rotated under the action of the spring coiling device until the connecting rod is collinear with the telescopic fixing rod (so that the limbs of the patient are not blocked by obstacles on the bouncing path, and the safety of the patient is ensured).

The effect of effectively improving the accuracy and the sanitation of the doctor in the preliminary examination of the joint flexibility of the patient is achieved.

Drawings

FIG. 1 is a pictorial representation of the present invention in a first viewing angle, ready for use;

FIG. 2 is a visual representation of the moment when the swing arm moves to the zero point of the force scale at the first viewing angle of the present invention;

FIG. 3 is a schematic view of the moment when the transmission assembly triggers the reset assembly to rotate the connecting rod to be collinear with the telescopic fixing rod according to the first view of the present invention;

FIG. 4 is a partially exploded view of the present invention from a second perspective;

FIG. 5 is a pictorial view of an Contraband-type clip and locking bolt from a third perspective of the present invention;

fig. 6 is a perspective view of a hinge head and a hinge base separated from a hinge shaft in a partial cross-section at a fourth viewing angle of the present invention;

FIG. 7 is a perspective view of the present invention shown with the mounting box and the box cover separated from each other at a fifth viewing angle;

FIG. 8 is a pictorial view of a lid in partial cross section at a sixth perspective of the present invention;

FIG. 9 is a schematic view of a hammer block according to a seventh aspect of the present invention;

FIG. 10 is a schematic view of a driving assembly at an eighth viewing angle in accordance with the present invention;

FIG. 11 is an enlarged view of area A of FIG. 4;

FIG. 12 is an enlarged view of area B of FIG. 4;

FIG. 13 is an enlarged view of area C of FIG. 10;

FIG. 14 is an enlarged view of area D of FIG. 10;

illustration of the drawings:

the reference numerals in the drawings denote: 1-free bearing; 2-reaming a head; 3-hinging the shaft; 4, mounting a box; 5-a transverse plate; 6-a spring coiling device; 7-a box cap; an 8-measuring dial; 9-a tie rod; 10-swing arm; 11-a drive spring; 12-a rotating table; 13-a housing wall; 14-a stroke slot; 15-a hammer body; 16-a mounting plate; 17-a telescopic fixing rod; type 18-Contraband clips; 19-a locking bolt; 20-tightening the bolt; 21-a non-slip mat; 22-an active head; 23-an anti-slip layer; 24-a slide block; 25-a cam; 26-a limit spring; 27-a baffle; 28-a strip groove; 29-axial slot; 30-a fulcrum; 31-a counter rack; 32-a stop lever; 33-rectangular block; 34-a handle; 35-a rectangular groove; a 36-gamma arm; 37-round head; 38-an arc-shaped slot; 39-index disk; 40-indicates an arrow; 41-rubber head; 42-inserting groove.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

A percussion hammer for a medical neurology department of the present embodiment, with reference to fig. 1 to 14: comprises a reset component and a driving component.

The reset assembly comprises a hinged support 1, a hinged head 2, a hinged shaft 3, a mounting box 4, a transverse plate 5, a spring coiling device 6 and a box cap 7, wherein the hinged support 1 is rotatably connected with the hinged head 2 through the hinged shaft 3, the hinged head 2 and the hinged shaft 3 keep synchronous movement, the mounting box 4 is coaxially fixed on the hinged support 1, the hinged shaft 3 extends into the shaft body inside the mounting box 4 and is fixed with the transverse plate 5, the bottom wall inside the mounting box 4 is symmetrically provided with the two spring coiling devices 6, the end parts of the two transverse ends of the transverse plate 5 are respectively provided with a flexible belt, the flexible belts are respectively connected with a clockwork spring inside the corresponding spring coiling device 6, the box cap 7 is detachably fixed on the mounting box 4, and the box cap 7 is provided with a limiting assembly for limiting the rotation of the transverse plate 5.

In the present embodiment, two coil winders 6 are distributed on both sides of the telescopic fixing rod 17; the axis body in the middle part of hinge 3 is the prism form, and the axis body of 3 upper ends of hinge is the cylinder form, and the axis body of 3 lower extremes of hinge is the type of falling T cylindricly, and is corresponding, runs through the arris groove that has the shaft body matching in the middle part of hinge 3 on the hinge 2, and the curb plate of 1 upper end of free bearing runs through the circular slot that has the shaft body matching in 3 upper ends of hinge, and the type of falling T cylinder groove that matches with the shaft body of 3 lower extremes of hinge is seted up to the curb plate of 1 lower extreme of free bearing.

The limiting assembly comprises a sliding block 24, a cam 25, a limiting spring 26 and a baffle 27, the top of the box cap 7 is symmetrically provided with strip-shaped grooves 28 with the cross sections in a shape like the Chinese character 'zhong' along the diameter direction of the box cap 7, the depth value of each strip-shaped groove 28 is equal to the thickness value of the upper bottom wall of the box cap 7, the sliding block 24 is connected in each strip-shaped groove 28 in a sliding manner, the cam 25 is detachably fixed on the outer portion, positioned outside the box cap 7, of the sliding block 24, the limiting springs 26 are one in number, the limiting springs 26 are arranged in the strip-shaped grooves 28, two ends of each limiting spring 26 are respectively fixed with the inner walls of the sliding block 24 and the strip-shaped grooves 28, shaft grooves 29 are respectively arranged on the side walls of two sides of the strip-shaped grooves 28 in the stroke direction, supporting shafts 30 are rotatably connected in the shaft grooves 29, and the baffle 27 is fixedly connected with the supporting shafts 30; when the slide block 24 supports the baffle plate 27 to enable the plate surface of the slide block to be perpendicular to the bottom wall of the box 4, an angle is formed to enable the plate surface of the baffle plate 27 to be just attached and abutted to the plate surface of the transverse plate 5 by rotating the box cap 7.

The axis of symmetry of the cam 25 is parallel to the direction of travel of the strip-shaped groove 28 and the projection of the axis of symmetry of the cam 25 on the bottom wall of the capsule cap 7 is an axis of symmetry of the projection of the strip-shaped groove 28 on the bottom wall of the capsule cap 7.

The hinged support 1 is fixed on a telescopic fixed rod 17, an Contraband-shaped clamp 18 is arranged at the end part of the fixed end of the telescopic fixed rod 17, and a locking bolt 19 matched with the clamp 18 is arranged on the Contraband-shaped clamp 18; two screw grooves are symmetrically arranged on the side wall of the box cap 7, and the screw grooves are all in screwed connection with puller bolts 20 matched with the screw grooves.

The inner wall of the Contraband-shaped clamp 18 is uniformly covered with a layer of non-slip mat 21, and the heads of the locking bolt 19 and the puller bolt 20 are respectively provided with a movable head 22 which is matched with the locking bolt 19 and the puller bolt 20, so that the mechanical abrasion to the bed body (the outer side wall of the mounting box 4) of the examination bed in the process of rotating the locking bolt 19 (or the puller bolt 20) can be effectively avoided; the action surface of the movable head 22 is provided with a layer of anti-skid layer 23, so that the mechanical abrasion degree of the checking bed body (the outer side wall of the mounting box 4) caused by the locking bolt 19 (or the puller bolt 20) in the process can be further reduced, and the clamping stability and reliability of the locking bolt 19 (or the puller bolt 20) on the checking bed body (the mounting box 4 box body) can be effectively improved.

It is worth noting that the action end of the movable head 22 on the locking bolt 19 is a plane, and the action end of the movable head 22 on the puller bolt 20 is an arc concave surface matched with the outer ring side wall of the mounting box 4; and the anti-slip mat 21 and the anti-slip layer 23 are made of rubber materials in the present embodiment.

The driving component comprises a measuring disc 8, a connecting rod 9, a swing arm 10 and a driving spring 11, a coaxial rotating table 12 is arranged on the bottom disc surface of the measuring disc 8 at the center of a circle, a cover wall 13 is arranged at the edge of the bottom disc surface of the measuring disc 8, one end of the swing arm 10 is rotatably connected on the rotating table 12, a stroke groove 14 matched with the rotating path of the swing arm 10 is formed in the cover wall 13, a hammer body 15 is detachably fixed at the end part of the swing arm 10 at the outer side of the cover wall 13, curved driving springs 11 are arranged at the two sides of the swing arm 10 in the cover wall 13, mounting plates 16 are arranged at the end parts of the driving springs 11, two mounting plates 16 on the same driving spring 11 are respectively fixed with the side wall of the swing arm 10 and the non-arc-shaped inner side wall of the cover wall 13, the two ends of the connecting rod 9 are respectively fixedly connected with the measuring disc 8 and the hinge 2, and under the premise that the states of the two driving springs 11 are the same, the connecting rod 9 and the swinging arm 10 are in reverse collinear relation on the plate surface of the measuring dial 8.

Two ends of the hammer body 15 are respectively fixed with rubber heads 41 with different models in a detachable way; the doctor can select the rubber head 41 of suitable size according to the size of patient's joint department size like this, simultaneously because adopt detachable fixed mode between rubber head 41 and the hammer block 15, the doctor can directly change new rubber head 41 when examining for next patient like this to collect disinfection processing after concentrating used rubber head 41, with waiting to use next time, thereby do not need the doctor to carry out complicated disinfection work again to the percussion hammer (this preparation duration when having practiced thrift the doctor effectively and connect a doctor).

The positions of the hammer body 15 close to the rubber head 41 are all provided with inserting grooves 42 matched with the free end parts of the swing arms 10, and the inside of each inserting groove 42 is provided with a pressing type elastic self-locking mechanism matched with the free end parts of the swing arms 10. The length of the hammer 15 is at least 1.5 times the diameter of the measuring disc 8 (and no more than 3 times the diameter of the measuring disc 8).

In this embodiment, the length of the hammer 15 is 2 times the diameter of the measuring disc 8, so that the end of the hammer 15 at the front end of the swing arm 10 in the traveling direction can hit the knee joint of the patient when the swing arm reaches the zero point of the force scale line.

Still be equipped with on the drive assembly and be used for restricting swing arm 10 pivoted joint subassembly: the clamping assembly comprises an inverse rack 31, a stop lever 32, a rectangular block 33 and a handle 34, wherein two inverse racks 31 in opposite directions are symmetrically arranged on the outer annular side wall of the lower end of the stroke groove 14 of the cover wall 13, an obtuse angle is formed between inverse teeth at the connecting point of the two inverse racks 31, a rectangular groove 35 penetrates through a rod body of the swing arm 10 outside the cover wall 13, the rectangular block 33 is in sliding connection with the rectangular groove 35, the handle 34 is fixed at the top end of the rectangular block 33, the stop lever 32 is fixed on the rectangular block 33, and when the stop lever 32 is in contact with the swing arm 10, the end part of the stop lever 32 close to the measuring dial 8 is clamped between the teeth on the inverse racks 31.

The connecting rod 9 is also provided with a transmission component for changing the state of the limiting component: the transmission component comprises a gamma-shaped arm 36 and a round head 37, an arc-shaped groove 38 matched with the rotating track of the swing arm 10 is also arranged on the plate body of the measuring plate 8, one end of the gamma-shaped arm 36 is fixedly connected with the swing arm 10 through the arc-shaped groove 38, the round head 37 is arranged at the other end part of the gamma-shaped arm 36, when the two driving springs 11 are in the same state, the round head 37 pushes the sliding block 24 open by pushing the cam 25 open [ when the limiting spring 26 is in a compressed state (note that when the round head 37 does not apply external force to the cam 25, the limiting spring 26 is also in a compressed state, so as to ensure that the baffle plate 27 is perpendicular to the bottom wall of the mounting box 4 and is just abutted against the transverse plate 5) ], the limiting assembly does not generate obstruction to the movement of the transverse plate 5, i.e. when the spring inside the coiler 6 is contracted, the cross plate 5 is quickly pulled straight by the flexible band (i.e. so that the coupling rod 9 is in line with the telescopic fixing rod 17).

The side of the hinged support 1, which is different from the side where the mounting box 4 is located, is coaxially provided with an indexing disc 39, and angle scale marks are uniformly etched on the disc surface at the upper end of the indexing disc 39; force scale marks are evenly etched on the disc surface at the upper end of the measuring disc 8; the midpoint of the force scale line is the zero point; the numerical value on the force scale means the impulse that the action end of the hammer 15 has when the swing arm 10 is released from the angle to the zero point.

In this embodiment, an included angle between two adjacent marking lines on the angle scale line is 1 °, and a numerical difference between two adjacent marking lines on the force scale line is 0.1N.

The rod body at the position of the swing arm 10 corresponding to the force scale mark and the rod body at the position of the connecting rod 9 corresponding to the angle scale mark are etched with the indicating arrows 40, so that a doctor can be helped to more accurately adjust the rotation designated angles of the swing arm 10 and the connecting rod 9 when the product is actually used.

The working principle is as follows:

for convenience of description and presentation in this embodiment, it is specified that the coupling rod 9 of the product of the present invention is required to be rotated to a position perpendicular to the telescopic fixing rod 17 when the product of the present invention is used (note that, when the product of the present invention is actually used, the included angle between the coupling rod 9 and the telescopic fixing rod 17 may be any one of an acute angle, a right angle, a flat angle or an obtuse angle, which depends on the specific use condition, such as the spatial position of the knee joint of the patient relative to the edge of the examination bed or the installation position of the Contraband type clamp 18, etc.).

In the first step, the doctor fixes the telescopic fixing rod 17 on the examining table by the cooperation of the Contraband type clamp 18 and the locking bolt 19, then installs the hammer body 15 on the swing arm 10, and then installs the rubber head 41 on the end of the hammer body 15.

It should be noted that after the first step is completed, the swing arm 10, the connecting rod 9 and the telescopic fixing rod 17 are in a collinear state.

In the second step, the physician sits the patient on the examination table with the patient's body on one side of the invention.

Thirdly, the doctor rotates the swing arm 10 to a direction away from the patient by a designated angle according to the requirement, and then the doctor lifts the rectangular block 33 upwards by the handle 34, so that the stop lever 32 is clamped on the inverted rack 31 at the designated position.

Fourth, the physician rotates the connecting rod 9 90 toward the patient.

At this time, the round head 37 does not apply force to the cam 25, so the slider 24 is pressed against the upper half of the baffle plate 27 under the action of the limit spring 26, and the transverse plate 5 has a tendency to rotate under the action of the two coil springs 6, so that the transverse plate 5 is pressed against the lower half of the baffle plate 27, and the force pressed against the upper half of the baffle plate 27 is greater than or equal to the force pressed against the lower half of the baffle plate 27, and the two forces are in the same direction.

Fifthly, the doctor presses the rectangular block 33 through the handle 34, so that the stop lever 32 is separated from the inverted rack 31; at this moment, the swing arm 10 rotates under the action of the two driving springs 11, when the swing arm 10 passes through a zero point on the force scale line, the hammer body 15 knocks the knee joint of the patient along the rubber head 41 at the front end of the travel direction, and simultaneously the round head 37 pushes the cam 25 open (i.e. pushes the slider 24 to further compress the limiting spring 26), so that the force applied to the upper half part of the baffle 27 by the slider 24 is removed, at this moment, the transverse plate 5 rapidly rotates under the action of the two coil springs 6, i.e. the connecting rod 9 rapidly rotates under the action of the coil springs 6, so that the swing arm 10, the connecting rod 9 and the telescopic fixing rod 17 are in a collinear state, and thus, the limbs of the patient can be ensured to be free from obstruction on the bouncing path, and the safety of the patient is ensured.

And sixthly, adjusting the tapping force of the hammer body 15 by the doctor, repeating the third step to the fifth step for a plurality of times, and recording data and test results.

Seventhly, the doctor enables the patient to sit on the examining table, which is different from the side, opposite to the product in the second step, of the examining table; and then repeating the third to sixth steps.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. A percussion hammer for medical neurology department is characterized in that: comprises a reset component and a driving component;

the reset component comprises a hinged support (1), a hinged head (2), a hinged shaft (3), a mounting box (4), a transverse plate (5), a spring coiling device (6) and a box cap (7), the hinged support (1) is rotatably connected with the hinged head (2) through a hinged shaft (3), the movement of the hinged head (2) and the movement of the hinged shaft (3) keep synchronous, the mounting box (4) is coaxially fixed on the hinged support (1), a transverse plate (5) is fixed on the shaft body of the hinge shaft (3) extending into the mounting box (4), two spring coiling devices (6) are symmetrically arranged on the bottom wall in the mounting box (4), the end parts of the transverse ends of the transverse plate (5) are respectively provided with a flexible belt which is respectively connected with a clockwork spring inside the corresponding spring coiling device (6), the box cap (7) is detachably fixed on the mounting box (4), and a limiting component for limiting the rotation of the transverse plate (5) is arranged on the box cap (7);

the driving assembly comprises a measuring disc (8), a connecting rod (9), a swinging arm (10) and a driving spring (11), wherein a coaxial rotating platform (12) is arranged on the bottom disc surface of the measuring disc (8) at the position of the circle center, a cover wall (13) is arranged at the edge of the bottom disc surface of the measuring disc (8), one end of the swinging arm (10) is rotatably connected to the rotating platform (12), a stroke groove (14) matched with the rotating path of the swinging arm (10) is formed in the cover wall (13), a hammer body (15) is detachably fixed at the end part of the swinging arm (10) at the outer side of the cover wall (13), the two sides of the swinging arm (10) in the cover wall (13) are respectively provided with the bent driving spring (11), the end parts of the driving springs (11) are respectively provided with mounting plates (16), and two mounting plates (16) on the same driving spring (11) are respectively connected with the side wall of the swinging arm (10), The non-arc-shaped inner side wall of the cover wall (13) is fixed, two ends of the connecting rod (9) are respectively and fixedly connected with the measuring disc (8) and the hinged head (2), and under the premise that the states of the two driving springs (11) are the same, the projections of the connecting rod (9) and the swing arm (10) on the disc surface of the measuring disc (8) are in a reverse collinear relation;

the driving assembly is also provided with a clamping assembly for limiting the rotation of the swing arm (10), and the connecting rod (9) is also provided with a transmission assembly for changing the state of the limiting assembly;

the limiting assembly comprises a sliding block (24), a cam (25), limiting springs (26) and a baffle plate (27), wherein strip-shaped grooves (28) with middle-shaped cross sections are symmetrically formed in the top of the box cap (7) along the diameter direction of the box cap, the depth values of the strip-shaped grooves (28) are equal to the thickness value of the upper bottom wall of the box cap (7), the sliding block (24) is connected in the strip-shaped grooves (28) in a sliding mode, the sliding block (24) is fixed with the cam (25) in a detachable mode on the outer portion of the box cap (7), the limiting springs (26) are one in number, the limiting springs (26) are arranged in the strip-shaped grooves (28), two ends of each limiting spring (26) are fixed with the inner walls of the sliding block (24) and the strip-shaped grooves (28) respectively, shaft grooves (29) are formed in the side walls of the two sides of the strip-shaped grooves (28) along the stroke direction, and fulcrum shafts (30) are rotatably connected in the shaft grooves (29), the baffle plate (27) is fixedly connected with the fulcrum shaft (30); when the sliding block (24) props against the baffle (27) to enable the plate surface of the sliding block to be perpendicular to the bottom wall of the box (4), an angle is formed by rotating the box cap (7) to enable the plate surface of the baffle (27) to be just attached and abutted to the plate surface of the transverse plate (5);

the transmission assembly comprises a gamma-shaped arm (36) and a round head (37), an arc-shaped groove (38) matched with a rotating track of the swing arm (10) is further formed in a disc body of the measuring disc (8), one end of the gamma-shaped arm (36) is fixedly connected with the swing arm (10) through the arc-shaped groove (38), the round head (37) is arranged at the end of the other end of the gamma-shaped arm (36), and when the two driving springs (11) are in the same state, the limiting assembly does not block the movement of the transverse plate (5).

2. The percussion hammer for the medical neurology department according to claim 1, wherein the hinged support (1) is fixed on a telescopic fixing rod (17), the end of the fixed end of the telescopic fixing rod (17) is provided with an Contraband-shaped clamp (18), and the Contraband-shaped clamp (18) is provided with a locking bolt (19) matched with the clamp; a group of screw grooves are symmetrically arranged on the side wall of the box cap (7), and jacking bolts (20) matched with the screw grooves are screwed on the screw grooves.

3. The percussion hammer for the medical neurology department according to claim 2, wherein the Contraband-shaped clamp (18) is uniformly covered with a layer of anti-slip mat (21) on the inner wall, the heads of the locking bolt (19) and the jacking bolt (20) are respectively provided with a movable head (22) which is matched with the locking bolt and the jacking bolt, and the action surface of the movable head (22) is respectively provided with an anti-slip layer (23).

4. The percussion hammer for the medical neurology department according to claim 1, wherein the axis of symmetry of the cam (25) is parallel to the stroke direction of the strip-shaped groove (28), and the projection of the axis of symmetry of the cam (25) on the bottom wall of the cap (7) is one axis of symmetry of the projection of the strip-shaped groove (28) on the bottom wall of the cap (7).

5. The percussion hammer for neurology department of claim 1, wherein the snap-in assembly comprises an inverted rack (31), a stop lever (32), a rectangular block (33), and a handle (34), two reverse racks (31) with opposite directions are symmetrically arranged on the outer ring side wall of the lower end of the stroke groove (14) of the cover wall (13), and the inverse teeth at the connecting point of the two inverse racks (31) form an obtuse angle, a rectangular groove (35) penetrates through the rod body of the swing arm (10) positioned outside the cover wall (13), the rectangular block (33) is connected in a sliding way in the rectangular groove (35), a handle (34) is fixed at the top end of the rectangular block (33), a stop lever (32) is fixed on the rectangular block (33), when the stop lever (32) is contacted with the swing arm (10), the end part of the stop lever (32) close to the measuring scale (8) is clamped between the teeth on the reverse rack (31).

6. The percussion hammer for the medical neurology department according to claim 1, wherein the hinged support (1) is provided with an indexing disc (39) coaxially on the side different from the side where the mounting box (4) is arranged, and the disc surface of the upper end of the indexing disc (39) is uniformly etched with angle scale lines; force scale marks are uniformly etched on the disc surface at the upper end of the measuring disc (8); and indicating arrows (40) are etched on the rod body of the swing arm (10) corresponding to the position of the force scale mark and the rod body of the connecting rod (9) corresponding to the position of the angle scale mark.

7. The percussion hammer for neurology department according to claim 6, wherein the midpoint of the force scale line is the zero point; the numerical value on the force scale line means the impulse force of the action end of the hammer body (15) when the swing arm (10) is released from the angle and reaches the zero point.

8. The percussion hammer for the medical neurology department according to claim 1, wherein rubber heads (41) of different types are detachably fixed at two ends of the hammer body (15), insertion grooves (42) matched with the ends of the free ends of the swing arms (10) are formed in positions of the hammer body (15) close to the rubber heads (41), and pressing type elastic self-locking mechanisms matched with the ends of the free ends of the swing arms (10) are arranged inside the insertion grooves (42).

9. The percussion hammer for neurology department according to claim 1, wherein the length of the hammer body (15) is at least 1.5 times the diameter of the measuring dial (8).