46 results about "Axillary crutch" patented technology

An improved forearm or under arm crutch. The crutch features an extension which slides horizontally out of one of the handles and solidly connects to the tip of the other handle to form a stable seat where the user can rest. The crutch also features shock absorbing means. A shock absorbing means is at the foot of the crutch to cushion at the handle and another above the handle to independently cushion the forearm cuff or under arm pad. The crutch also features adjustable handles that articulate relative to the frame to comfortably accommodate users with various needs. The handle may also include a shock absorbing means integrated within the handle pad.

The invention relates to a telescopic crutch with a pure mechanical button switch for timely adjusting height, which can be an underarm crutch or a hand-held crutch. When the button switch is pressed by a finger and a handle is pressed synchronously, the crutch becomes short, the height is reduced, and when the button switch is released, the height is kept; when the button switch is pressed by a finger and external pressing force is not applied on the handle, the crutch becomes long, the height is increased, and when the button switch is released, the height remains unchanged; in the released state of the button switch, the handle is pressed, and at the moment, the height state of the crutch is locked, so the height is not changed. The crutch, which is safe and reliable and is easy to operate and the height of which can be conveniently, timely and quickly adjusted to a height needed by a walker using the crutch, is obtained, and when walkers who have incomplete lower limbs and cannot conveniently walk or has difficulty in walking need to go upstairs from the horizontal ground or want to sit at positions lower than the standing position, the telescopic crutch brings great convenience to the walkers, thus enabling the walkers to walk with more dignity.

The invention discloses a multifunctional axillary crutch. The multifunctional axillary crutch is characterized in that the crutch comprises a crutch head (1), a damping mechanism, a lower telescoping mechanism, a knee joint rotating mechanism, a folding mechanism, a middle telescoping mechanism, a hip joint rotating mechanism, an upper telescoping mechanism and an axillary support (13) which are sequentially connected from bottom to top; the lower telescoping mechanism is connected with the knee joint rotating mechanism through a lower locking mechanism, the hip joint rotating mechanism is connected with the upper telescoping mechanism through an upper locking mechanism, and a handle (18) is arranged on the side portion of the middle telescoping mechanism. By the adoption of the multifunctional axillary crutch, disabled people in lower limbs can be assisted in walking at a normal gait to the greatest extent, and other secondary injuries are avoided to a certain degree.

The invention discloses an axillary crutch. The axillary crutch comprises an axilla supporter, a handle, support tubes, a leg and an elastic device, wherein the axilla supporter and the leg are arranged at the two ends of the support tubes respectively; the handle is arranged on the support tubes; one end of the elastic device is connected with the support tubes; the other end of the elastic device is connected with the leg; the leg can be folded together with the support tubes through the elastic device. The elastic device is connected to the support tubes and the leg, so that the other ends of the support tubes are separated from the leg when the elastic device is stretched; the leg can be folded towards one side of each of the support tubes, so that the size of the whole axillary crutch is reduced, and convenience is brought to carrying; during use, the axillary crutch can be used after the leg is inserted into the support tubes.

The invention discloses an underarm crutch with a power generation function, and relates to the technical field of crutches for disabled persons. By the aid of the underarm crutch, a disabled person can be illuminated when walking at dark nights. The underarm crutch with the power generation function has the advantages that an illuminating lamp is arranged on an armpit support and is used for illuminating the disabled person when the disabled person walks at the dark nights, so that the disabled person can clearly see road conditions; a second support rod is continuously pushed when the disabled person holds the crutch and walks, so that magnetic induction lines can be continuously cut by a coil, and induced electromotive force can be generated; a rack on a magnet can drive a gear to rotate, accordingly, a power generator can be driven to generate power, two portions of electric energy are stored in a storage battery, reliable electric energy can be provided for the illuminating lamp, and the underarm crutch is convenient to popularize and apply.

The invention discloses a processing and producing line of a simple axillary crutch. The processing and producing line comprises a workbench A, a workbench B arranged on the right side of the workbench A, and a branch pipe conveying belt arranged on the rear side of the workbench A. A reversing push unit is arranged on the workbench B, the interior of the workbench A is of a cavity structure, a crutch body forming unit is arranged at the end, close to the workbench B, of the workbench A, an I-shaped groove is formed in the workbench A, and a clamping unit and a hole milling unit are arranged in the I-shaped groove. A welding unit is arranged at the portion, located on a groove opening of the I-shaped groove, of the workbench A, and a controller is arranged on the workbench A, and electrically connected with the reversing push unit, the clamping unit, a punching unit, the hole milling unit, the welding unit, a first rotary motor and a plurality of stamping tool bits. The processing and producing line has the advantages of being simple in structure and high in practicality.

An axillary crutch is disclosed in the invention; the axillary crutch has a body comprised of two opposite shafts, each shaft has a wall portion embedded therein, so that the wall portions may serve as the basis for adjusting and positioning a handgrip. Therefore, the shafts do not need to be formed with holes for securing the handgrip, which not only maintains the strength of the shafts, but also reinforces the strength and security of the axillary crutch as a whole because the shafts are embedded with fortified wall portions therein. Moreover, the position of the handgrip may be adjusted according to the length of a user's arm, and a pivot fitted into the handgrip may hold the opposite shafts together, which prevents the two shafts from becoming deformed or twisted, or buckling due to external forces.

An axillary crutch contains a first support unit including two parallel first support columns, an armpit pad, two first connecting segments, and a grip bar; a second support unit including two parallel second support columns and an abutting pad, and the two parallel second support columns coupling with the two parallel first support columns; a positioning unit including two first fixing portions, an operating member, and two second fixing portions. The two first connecting segments of the first support unit are coupled on two top ends of the two parallel second support columns, and the two first fixing portions are locked with the two second fixing portions, such that when the operating member is pulled, the two first fixing portions remove from the two second fixing portions so that the first support unit and the second support unit are retracted.

The present invention discloses a walking aid axillary crutch with an axillary buffer structure. The walking aid axillary crutch comprises a stainless steel main frame, the stainless steel main framecomprises a left bending rod, a right bending rod and a lower positioning support tube, an upper part of the lower positioning support tube is fixed with lower vertical tube parts of the left bendingrod and the right bending rod through a fixing bolt, and a bottom end of the lower positioning support tube and bottom ends of the lower vertical tube parts of the left bending rod and the right bending rod are fixed in a connecting block. An axillary support is supported by buffer springs, so that along with impact of the axillary crutch and the ground, impact force can be reduced by a buffer force of the buffer springs, the impact of the axillary support on the armpit of a user is reduced, use comfort level is improved, and meanwhile, the impact force is further reduced by a lower buffer spring arranged at a bottom part and and the use comfort level is improved.

The invention provides a novel axillary crutch, which comprises a support frame, an electric telescopic rod and a base, wherein the support frame is connected with the base through the electric telescopic rod; the base is a sucker; an axillary support part and a grip are arranged on the support frame; the grip is positioned between the axillary support part and the electric telescopic rod; the two ends of the axillary support part are connected with shoulder pads; the grip is connected with a wrister; a regulator is arranged on the grip; an infrared emitting device and an infrared receiving device are arranged in the electric telescopic rod, and are positioned at the two opposite ends of the electric telescopic rod respectively; the regulator comprises a microprocessor, a regulation button, a display screen and a storage battery. The novel axillary crutch has good antiskid effects, and is higher in practicability and suitable for popularization in the field, and the support height of the axillary crutch can be freely regulated at any time.

The invention discloses an oxter crutch for a wrist injured patient. The oxter crutch comprises a body, a supporting rod arranged at the bottom end of the body and a supporting block arranged at the top end of the body. A holding rod is rotatably arranged in the middle of the body, a forearm containing mechanism is rotatably arranged at the top in the body, and the forearm containing mechanism isused for containing a forearm of a patient; an adjusting mechanism is arranged between the forearm containing mechanism and the top end of the body, and the inclination angle of the forearm containingmechanism can be adjusted through the adjusting mechanism. The forearm containing mechanism comprises a barrel used for containing the forearm of a patient, a supporting annular body is arranged on the periphery of the barrel and rotationally arranged between the tops in the body through a rotating shaft, and an elbow supporting mechanism is arranged at the rear end of the barrel. When the wristof a patient is injured, the forearm is inserted into the forearm containing mechanism, the adjusting mechanism is locked to fix the forearm containing mechanism, the patient can drive the crutch to walk through the forearm, and the adaptability of the crutch is improved.

The invention discloses a novel underarm walking stick, which comprises a connecting plate, an anti-skidding mechanism arranged below the connecting plate, a buffering mechanism arranged above the connecting plate, a telescopic mechanism arranged above the buffering mechanism, and an adjustable axilla support mechanism arranged above the telescopic mechanism. In a use process, the anti-skidding mechanism is fit to the ground all the time, an effective contact area increases friction with the ground, safety is improved, the adjustable axilla support mechanism can carry out regulation accordingto the own requirements of a user, a situation that underarm skin and bones are subjected to secondary injury since an axilla support is too big or too small is avoided, and the comfortable feeling ofa user is improved due to the arrangement of an air bag.

The invention relates to a medical axillary walking stick. An axillary support is embedded into a top cross rod of a supporting rod, a left vertical rod and a right vertical rod of the supporting frame are each provided with a row of gripper positioning holes, the two rows of gripper positioning holes have opposite positions, a threaded rod sequentially penetrates through the gripper positioning holes in the right vertical rod of the supporting frame, a gripper and the gripper positioning holes, with the positions opposite to those of the gripper positioning holes in the right vertical rod, in the left vertical rod of the supporting frame to be in threaded connection with a butterfly nut, a sleeve is clamped between the left vertical rod and the right vertical rod of the bottom of the supporting frame and fixed through a bolt, the bottom of the supporting frame and the bottom of the sleeve are embedded into a fixed base, a connecting rod is installed in the sleeve and can slide up and down along the inner wall of the sleeve, a hydraulic shock absorber is installed at the bottom of the connecting rod, and a foot pad is arranged at the bottom of the hydraulic shock absorber. The hydraulic shock absorber can effectively relieve impact on the armpit of a user by the walking stick, use is more comfortable, the height can be adjusted, and the medical axillary walking stick is suitable for users of different heights.

The invention discloses a medical walking-aiding axillary crutch which comprises supports, a base, axillary supports, grips, first adjusting holes, positioning holes, supporting columns, anti-slip foot pads, second adjusting holes, elastic plates and rollers, wherein the two supports are fixed to the base, the axillary supports are fixed to the tops of the two supports, the first adjusting holes penetrate through the middles of the supports in a left-right way, the positioning holes are formed in the lower portions of the supports, the grips are arranged in the middles of the two supports andare connected in the first adjusting holes through butterfly bolts, the anti-slip foot pads are arranged at the bottoms of the supporting columns, multiple second adjusting holes are formed in the upper portions of the supporting columns, the tops of the supporting columns penetrate through the base to make the second adjusting holes in bolt connection with the positioning holes of the supports, the elastic plates are Z-shaped, the two elastic plates are in bolt connection with the left sides and the right sides of the supporting columns in the vertical direction, and the rollers are arrangedin front and back of each elastic plate. The medical walking-aiding axillary crutch is simple in structure, the rollers at the bottom bear the gravity of the crutch for movement, and the physical power of a patient is saved.

The invention discloses an axillary crutch with an illuminating function. The axillary crutch comprises a left side pipe and a right side pipe, wherein the upper ends of the two side pipes are connected with an axillary support; a handle is connected between the two side pipes; the lower ends of the two side pipes are connected with a support leg; a lamp cap is arranged at one end of the axillary support; a power supply is connected with the lamp cap in the axillary support; a switch is further connected between the lamp cap and the power supply. The axillary crutch has the advantages that the lamp cap and a multimedia module are arranged on the axillary support, so that the axillary crutch has illuminating and entertaining functions, and various functions are realized; a handle adjusting mechanism is arranged between the two side pipes, a support leg adjusting mechanism is arranged on the support leg, and the positions and heights of the handle and the support leg can be adjusted conveniently, so that the requirements of different users can be met.

The invention relates to the technical field of medical apparatuses, in particular to a medical underarm walking stick making it convenient for a patient to have a rest. The medical underarm walking stick comprises a walking stick main body, an armrest is transversely arranged in the middle of the walking stick main body, a supporting handle is arranged at the top of the walking stick main body and is provided with a safety lock assembly, a supporting assembly is arranged at the bottom of the walking stick main body and comprises a supporting rod and combined supporting legs at the bottom of the supporting rod, a folding plate assembly is arranged on the front of the walking stick main body, and a folding leg assembly is arranged on the back of the walking stick main body. By opening a second plastic plate and a third plastic plate in the folding plate assembly under the effect of a first hinge and a second hinge to be laid flatly on the surface of the walking stick main body and alsocrosswise opening the folding leg assembly, the medical underarm walking stick can be used as a stool to have a rest, can be used as the stool to have a proper rest when the patient walks and feels tired and can also be folded in ordinary times, and the normal use of the walking stick cannot be influenced.

The invention discloses a underarm walking stick capable of being folded into a stool. The walking stick comprises a main frame, a dragging pad and a handle. The dragging pad is installed at the upper end of the main frame in a clamped mode, a main supporting leg is vertically welded to the middle of the lower end of the main frame, and a first foot pad is installed on the outer side of the lower end of an extension pipe sleeve in a clamped mode; a supporting plate is rotatably connected to the inner side of the lower end of the main supporting leg, a connecting shaft is rotatably connected to the interior of the right end of the seat plate, mounting rods are welded to the front end and the rear end of the connecting shaft, auxiliary supporting legs are rotatably connected to the ends, away from the connecting shaft, of the mounting rods, and the outer sides of the auxiliary supporting legs are sleeved with extension square sleeves; and a limiting block is welded on the lower side wall of the right end of the seat plate. According to the underarm walking stick capable of being folded into a stool, the walking stick and the stool can be converted in form by rocking the handle, a patient can independently adjust the walking stick without bending down, in addition, the locking problem is solved, and the patient is prevented from being hurt by shaking during use.

The invention discloses an axillary crutch with telescopic support feet. The axillary crutch comprises a left side pipe and a right side pipe, wherein the upper ends of the two side pipes are connected with an axillary carrier, the middle of the two side pipes is connected with a holding handle, the lower ends of the two side pipes are connected with the support feet, each support foot consists of an inner pipe and an outer pipe, and the inner pipe and the outer pipe of each support foot relatively slide through a support foot regulating mechanism. The axillary crutch has the advantages that a holding handle regulating mechanism is arranged between the two side pipes, the support foot regulating mechanism is arranged on the support feet, and the positions and the heights of the holding handle and the support feet can be conveniently regulated, so the requirements of different users can be met; through the arrangement of a support foot framework and a support foot soft body at the bottom of each support foot, the anti-lisp and buffer effects of the axillary crutch are improved.

The invention discloses a multifunctional walking aid. The multifunctional walking aid comprises two first supports, two second supports, a cushion, a bedpan and an auxiliary support, the two first supports are arranged in a spaced mode, the front sides of the two first supports are connected with blocking pieces, the two second supports are connected to the rear sides of the two first supports correspondingly, a walking stick supporting piece and an axillary crutch supporting piece are arranged on each second support, the two opposite sides of the cushion are connected to the first supports correspondingly, a drain hole is formed in the cushion, and the bedpan is detachably arranged on the cushion and directly faces the drain hole; and the auxiliary support is located between the walkingstick supporting piece and the cushion. The multifunctional walking aid can meet different walking aiding requirements of a patient in different periods, can assist the patient in standing or walkingin various modes, and provides sufficient protection for the patient, and the safety of the multifunctional walking aid is improved.

The invention discloses a novel multifunctional folding axillary crutch, comprising a first bracket, a second bracket and a third bracket, wherein the first bracket is fixedly connected with an axillary support; one end of the second bracket is fixedly provided with a gripping device; the first bracket and the gripping device are movably connected by a gear adjusting button; and the second bracket and the third bracket are movably connected by a gear adjusting button. The novel multifunctional folding axillary crutch realizes a function for three purposes with one object, especially a function of becoming a stool by folding and deforming, and has the characteristics of good stability and convenience in use and installation.

The invention discloses an axillary crutch type walking stick. The axillary crutch type walking stick comprises an armpit support part, a walking stick pipe, a walking stick leg and a hand-held part, the walking stick leg is provided with a first telescopic pipe, and the upper part of the first telescopic pipe is sleeved in the lower part of the walking stick pipe; the hand-held part is arranged at the outer side of the upper part of the walking stick pipe; a second telescopic pipe sleeves the upper part of the walking stick pipe, and a locating ring is arranged at the upper part of the outer wall of the second telescopic pipe; a lower pipe extends from the lower end of the armpit support part, threads are formed in the outer wall of the lower pipe, and the armpit support part is fixed on the second telescopic pipe through an adjusting component; the adjusting component comprises a fastening sleeve and a rubber sleeve. The axillary crutch type walking stick can serve as an axillary crutch or a walking stick according to needs, and the axillary crutch type walking stick serves as the walking stick through adjusting the extending length of each of the first telescopic pipe and second telescopic pipe relative to the outside of the walking stick pipe to enable the overall height of the axillary crutch type walking stick to locate at the lowest state; when serving as the axillary crutch, the extending length of each of the first telescopic pipe and second telescopic pipe relative to the outside of the walking stick pipe is adjusted to enable the overall height of the axillary crutch type walking stick to adapt to the height of a patient, and the angle between the armpit support part and the hand-held part can be adjusted through the adjusting component.

The utility model relates to a telescopic crutch with a purely mechanical button switch for adjusting the height in a timely manner. The crutch can be an armpit crutch or a hand-held crutch. Press the button with your finger and press the handle synchronously, the crutch becomes shorter, the height is lowered, the button is released, and the height is maintained; Press the button with your finger, the handle does not exert an external force of downward pressure, the crutch becomes longer, and the height increases, When the button is released, the height remains unchanged; in the button release state, the handle is pressed down, and the height of the crutch is locked, so the height remains unchanged. A safe, reliable, easy-to-operate, convenient, timely, and fast cane for adjusting the height of the crutches to the height required by the walkers using the crutches is obtained, which is suitable for the disabled of the lower limbs and those with inconvenience or difficulty in moving. It provides great convenience for walkers when they go up the stairs from the level road or when they want to sit lower than standing, allowing them to walk with more dignity.

The invention discloses a conveniently adjustable length-adjustable armpit crutch for medical rehabilitation, which comprises two left and right side tubes, the tops of the two side tubes are fixed on the bottom surface of the armpit mop, and the middle parts of the two side tubes are provided with gripping crutches. part, the bottoms of the two side pipes are bent and close to each other, an adjusting screw sleeve is provided between the bent parts of the bottom of the two side pipes, and an upper connecting block is arranged above the adjusting screw sleeve, and the upper connecting block is fixed on On the oblique bending part above the two bending parts, a lower connecting block is arranged below the adjusting screw sleeve, the lower connecting block is fixed on the bottom surface of the two bending parts, and the top and bottom ends of the adjusting screw sleeve are respectively hinged On the corresponding upper connection block and the lower connection block, an adjustment stud is screwed into the adjustment screw sleeve, a buffer pressing block is installed at the bottom of the adjustment stud, and the top of the adjustment stud is below the holding portion. Its length can be adjusted to meet the needs of different users, and the position of the holding part can be adjusted to meet the needs of different users.

The invention provides an impact strength testing machine for an axillary crutch. The impact strength testing machine comprises a bracket, an upper and lower moving frame mechanism, an armpit supportposition and posture adjusting mechanism, a supporting leg position and posture adjusting mechanism, a protective net and a control box. The left side and the right side of the upper and lower movingframe are fixedly connected with T-shaped nuts which are connected with two leadscrews between the bracket. A motor is connected with a speed reducer. An extension shaft of the speed reducer is connected with a driving leadscrew through a coupler. The driving leadscrew drives a driven leadscrew to rotate synchronously through a chain wheel transmission so as to drive the upper and lower moving frame and a heavy hammer to move up and down. The position and posture of the axillary crutch is adjusted through the armpit support position and posture adjusting mechanism and the supporting leg position and posture adjusting mechanism. The control box is fixedly connected to a vertical profile on the right side of the bracket. The protective net is mounted on the periphery of the testing machine.A touch screen is connected onto the protective net. A first hand wheel is rotated to achieve height adjustment of the armpit support; a second hand wheel is rotated to achieve front and back adjustment of the armpit support; and a third hand wheel is rotated to achieve front and back adjustment of the supporting legs whose height is fixed. According to the impact strength testing machine for theaxillary crutch, electromagnet is adopted for carrying out power-on lifting and power-off releasing of the heavy hammer to realize the drop weight impact test.

The invention discloses an axillary crutch, and belongs to the field of crutches. The axillary crutch comprises a crutch body, wherein the crutch body comprises a bracket, a support rod, a holding rodand a dragging pad; the dragging pad, the bracket and the support rod are fixedly connected in sequence from top to bottom, and the holding rod is rotatably connected to the inner end of the bracket;an arm sleeve is arranged on the inner side of the bracket and located on the upper side of the holding rod, a connecting mechanism is connected between the arm sleeve and the crutch body, positioning holes are uniformly formed in the two outer side walls of the crutch body, and according to the crutch, when the wrist of a patient is injured, the middle connecting assembly can be detached from the crutch body; the arm sleeve is adjusted to be horizontal, the arm sleeve is connected with the crutch body through the middle connecting assembly, the arm stretches into the arm sleeve, the arm sleeve and the crutch body are perpendicularly distributed at the moment, arm strength can be used for lifting the crutch body, the wrist does not need to be used, and secondary injury of the wrist is avoided.

The invention discloses a multipurpose crutch which comprises a hand shank, a crutch body provided with a cavity structure and rubber. The hand shank is fixedly connected to the upper end of the crutch body, and the rubber is arranged at the bottom of the crutch body. The multipurpose crutch further comprises a telescopic rod, an oblique supporting rod and a horizontal supporting rod, wherein the telescopic rod is embedded into the cavity of the crutch body and is in positioning connection with the crutch body through a lower hinge pin. The upper end of the telescopic rod is in positioning connection with the horizontal supporting rod through an upper hinge pin. Two ends of the oblique supporting rod are respectively hinged to one end of the horizontal supporting rod and one end of the hand shank, and a fixing ring capable of fixing the horizontal supporting rod is arranged on the crutch body. An underarm crutch and a common crutch are integrated, and the multipurpose crutch generally serves as the common crutch and can also serve as the underarm crutch in special circumstances.

An armpit walking stick for the disabled having difficulty in walking comprises a walking stick body, a folding tripod, a chair face folding fulcrum and a chair rest. The armpit walking stick is characterized in that the armpit walking stick is designed to be arranged on a mesh-cloth type chair surface, the walking stick is utilized to serve as a front leg of a folding chair, and two rear chair legs are designed to intersect with the middle of the walking stick, an upper point extends upwards and forwards to serve as a front supporting point of the chair surface, the triangular mesh-cloth type chair surface is formed, and the armpit walking stick can be adjusted in height; when contracting, the armpit walking stick becomes a chair after contracting, an armpit portion becomes a chair back, and a chair portion is fixed through sleeve tubes and screws. The armpit walking stick can slide up and down to adjust the height, so that convenience is brought to people having difficulty in walking for travelling, walking, standing, walking stopping and standing assisting, and self-care abilities of the old and the people having difficulty in walking are enhanced.

An underarm shock absorber assembly 10 mounted to one end of a crutch stick providing calibrated support to a user. The different portions of the saddle assembly 30 ergonomically conform to a user's underarm and the compression of springs 47 is selected depending on a user's gait and preferences. Assembly 10 is mounted substantially perpendicularly to an underarm crutch stick with a truss assembly 20 having through openings 26 and sockets 42 mounted to support assembly 40 pass through through openings 26 housing spring members 47. Saddle assembly 30 includes supporting plates 31 with posts 32 having distal counterbored end 132 to which tubes 36 are mounted at one end. The other end of tubes 36 coacts with spring members 47.

The invention relates to an underarm crutch with a multidirectional handle. The underarm crutch can be used with the palm down and the whole palm stressed. The handle is connected with a screw hole through a screw and can be changed to turn forwards, backwards, leftwards and rightwards. Through function of a guiding shaft, the anti-skid crutch is enabled to be more suitable for moving forward andbackward and good in directionality. A contact area of an anti-skid surface is large, the elasticity of an elastic cushion can be increased appropriately so as to increase the friction force of the anti-skid surface, and the underarm crutch is more stable. Small-area high-pressure twisting wearing is changed into large-area low-pressure contact wearing, so that the underarm crutch is large in thecontact surface and small in the wearing loss. The underarm crutch with the multidirectional handle is good in anti-skid effect, labor-saving, effort-saving, wear resistant, durable and convenient touse.

The invention relates to the technical field of medical equipment, especially to a medical underarm crutch with adjustable height, comprising a crutch body, the top of the crutch body is equipped witha separate, the bottom end of the crutch body is equipped with supporting components, and the supporting component comprise a loop bar, a telescopic rod fitted to the cover of the loop bar and the combined supporting feet at the bottom end of the telescopic rod; the loop bar and the surface of the crutch body are equipped with screens for screening the telescopic rod, the front of the crutch bodyis equipped with folding plate components, the back of the crutch body is equipped with folding leg components; a lock knob on one side of a armrest is twisted, and the lock knob is simply lift up orpressed down to allow the telescopic rod to expand freely inside the loop bar; When the appropriate height is adjusted, the lock knob is loosen to fixed the expansion bar again; compared to the crutch height adjustment in existing technology, the medical underarm crutch with adjustable height is adjusted without bending for patients, and is adjusted freely by controlling the lock knob near to thearmrest without bending and the operation is simple and convenient.