Bionic non-compression flexible laminating fixed-point stable type cardiovascular postoperative care equipment
Technical Field
The invention belongs to the technical field of cardiovascular postoperative care, and particularly relates to bionic non-compression flexible fitting fixed-point stable type cardiovascular postoperative care equipment.
Background
The cardiovascular department is a clinical department set up for diagnosing and treating cardiovascular diseases in major internal medicine of hospitals at all levels, the treated diseases comprise cardiovascular diseases such as angina pectoris, hypertension, sudden death, arrhythmia, heart failure, premature beat, arrhythmia, myocardial infarction, cardiomyopathy, myocarditis and acute myocardial infarction, when treating the cardiovascular diseases, the most effective method with the longest duration of treatment effect is surgical treatment, the diseased part of a patient is removed or replaced by surgery, and the heart of the patient can work normally, so the effect which cannot be achieved by many drug treatments can be solved by the surgical treatment, and the wound of the patient needs to be nursed after the chest-open operation of the cardiovascular department. The postoperative patient needs to rest in bed, but if the patient keeps a lying posture for a long time, the patient is not beneficial to the blood circulation of the body tissues of the patient and is easy to generate bedsore; when the patient turns over, the surrounding tissues of the wound are easy to tear if the patient does not protect the wound, and the wound is not easy to heal.
Disclosure of Invention
Aiming at the situation and overcoming the defects of the prior art, the invention provides the bionic non-compression flexible laminating fixed-point stable type cardiovascular postoperative care equipment, wherein a heart rate monitoring and alarming mechanism is arranged according to the condition that the postoperative heart rate of a cardiovascular patient is accelerated, and the technical effect of timely acousto-optic alarm reminding is realized by utilizing the inverse effect of a piezoelectric ceramic piece to monitor the heart rate vibration and collect sound; according to the situation that the cardiovascular patients need to lie flat for a long time after operation to repair blood circulation differently and bedsore is easy to generate, the mode of combining rotation, reciprocation and radial adjustment is adopted, the blood circulation is effectively promoted, and the situation that the skin is bedsore is effectively prevented; according to the contradictory technical problems that a postoperative patient needs to fix a wound (prevent the wound from being torn) and does not need to fix the wound (increase the oppressive feeling of the wound) when turning over, the bionics is applied to the technical field of cardiovascular postoperative care, and the technical effect of flexible adsorption type fixing of the wound is achieved by adopting a mode of combining octopus tentacle prevention type wound protection and elastic multipoint self-adaptive fitting.
The technical scheme adopted by the invention is as follows: the invention provides bionic non-compression flexible laminating fixed-point stabilizing type cardiovascular postoperative care equipment which comprises a multifunctional bed, a blood circulation promotion and relaxation type bearing pad, a non-compression type wound tearing prevention mechanism and a heart rate monitoring and alarming mechanism, wherein the blood circulation promotion and relaxation type bearing pad is arranged on the multifunctional bed; the non-compression wound tearing prevention mechanism comprises a fixing ring, a position adjusting device, an elastic multi-point self-adaptive type laminating device, an octopus contact angle prevention type wound protection device and a stable binding band, the fixing ring is arranged on the multifunctional bed, the position adjusting device is arranged on the fixing ring, the elastic multi-point self-adaptive type laminating device is arranged on the position adjusting device, the octopus contact angle prevention type wound protection device is arranged on the elastic multi-point self-adaptive type laminating device, and the stable binding band is arranged on the octopus contact angle prevention type wound protection device.
Further, prevent octopus corner contact type wound protector includes flexible cushion and sucking disc, flexible cushion is located on the elasticity multiple spot self-adaptation formula laminating device, the even interval arrangement of sucking disc is located on the flexible cushion.
Preferably, elasticity multiple spot self-adaptation formula laminating device is including laminating support body, spliced pole, turning block, self-adaptation spring and hollow gasbag post, the turning block rotates and locates on the position control device, the spliced pole is located on the position control device diapire, the laminating support body is located on the spliced pole, the even interval arrangement of self-adaptation spring is located on the laminating support body, the hollow gasbag post is located on the self-adaptation spring.
Further, the position adjusting device comprises a vertical adjusting piece, a connecting block and a transverse adjusting piece, wherein the vertical adjusting piece is arranged on the fixing ring, the connecting block is arranged at the movable end of the vertical adjusting piece, the transverse adjusting piece is arranged on the connecting block, and the rotating block is rotatably arranged at the movable end of the transverse adjusting piece.
The fixing bandage comprises a first bandage and a second bandage, the first bandage is arranged on one side of the flexible cushion, the second bandage is arranged on the other side of the flexible cushion, the two sides of the upper surface of the flexible cushion are provided with a barbed hook and loop fastener, the upper surfaces of the first bandage and the second bandage are provided with a round hook and loop fastener, and the round hook and loop fastener is connected with the barbed hook and loop fastener in a sticking mode.
Further, rhythm of the heart monitoring alarm mechanism is including fixed horizontal pole, sliding block, rhythm of the heart monitoring piece, flexible rope, LED lamp, speaker and control assembly, fixed horizontal pole is located on the horizontal regulating part, the sliding block slides and locates in the fixed horizontal pole, flexible rope is located on the sliding block diapire, rhythm of the heart monitoring piece is located on flexible rope, the LED lamp is located on the fixed horizontal pole upper wall, the speaker is located on the fixed horizontal pole upper wall, control assembly locates on the fixed horizontal pole upper wall, rhythm of the heart monitoring piece, LED lamp and speaker are connected with the control assembly electricity, rhythm of the heart monitoring piece is piezoceramics piece.
As a further preferred aspect of the present invention, an engaging groove is provided on the fixed cross bar, and the sliding block is slidably engaged in the engaging groove.
Further, blood circulation promotes the formula bearing pad of releiving and includes that bearing pad body, ventilation are releived hole and blood flow and are promoted the device, the bearing pad body is located on the multi-functional bed, the even interval arrangement in ventilation is releived the hole and is located on the bearing pad body, blood flow promotes the device and locates in the ventilation is releived the hole.
The blood flow promoting device comprises a ventilating plate, airflow circulating holes, a rotating motor cavity, a rotating motor, a radial degree adjusting assembly and a water sac rising and falling touch and press assembly, wherein the ventilating plate is arranged in a ventilation relieving hole; footpath degree adjusting part includes the bottom plate, encloses fender, fixed plate, footpath degree adjusting screw, gag lever post and accommodate motor, the bottom plate links to each other with the rotating electrical machines, enclose to keep off and locate on the bottom plate upper wall, the fixed plate is located on the bottom plate upper wall, accommodate motor locates and encloses on the fender inside wall, footpath degree adjusting screw's one end links to each other with accommodate motor, footpath degree adjusting screw's the other end rotates and locates on the fixed plate, the one end of gag lever post is located and is enclosed on the fender, the other end of gag lever post is located on the fixed plate.
Furthermore, the water sac lifting touch and press assembly comprises an L-shaped moving member, a rotary table, a connecting rod, a limiting frame, a lifting rod, a water sac and a relieving motor, the L-shaped moving member is sleeved on the diameter adjusting screw rod and the limiting rod, the rotary table is rotatably arranged on the L-shaped moving member, one end of the connecting rod is eccentrically arranged on the rotary table, the limiting frame is arranged on the upper wall of the L-shaped moving member, the lifting rod is clamped and slidably arranged on the limiting frame, one end of the lifting rod is rotatably connected with the other end of the connecting rod, and the water sac is arranged at the other end of the lifting rod; the rotating electrical machines rotates and drives the bottom plate and rotate, and the bottom plate rotates and drives to enclose the fender and rotate, encloses the fender and rotates and drive footpath degree adjusting part and rotate, and footpath degree adjusting part rotates and drives the water pocket and rise and fall to touch and press the subassembly and rotate, starts the motor of releiving simultaneously, and the motor of releiving rotates and drives the carousel and rotate, and the carousel rotates and drives the connecting rod and rotate, and the connecting rod rotates and drives the pole that rises and falls, and the pole that rises and falls drives the water pocket and goes up and down, realizes the technological effect of releiving different positions of patient's skin.
The invention with the structure has the following beneficial effects: the scheme provides bionic non-compression flexible laminating fixed-point stable type cardiovascular postoperative care equipment, a heart rate monitoring and alarming mechanism is arranged according to the condition that the postoperative heart rate of a cardiovascular patient is accelerated, the inverse effect of a piezoelectric ceramic piece is utilized, heart rate vibration monitoring and sound collection are carried out, and the technical effect of timely sound-light alarm reminding is achieved; according to the situation that the cardiovascular patients need to lie flat for a long time after operation to repair blood circulation differently and bedsore is easy to generate, the mode of combining rotation, reciprocation and radial adjustment is adopted, the blood circulation is effectively promoted, and the situation that the skin is bedsore is effectively prevented; according to the contradictory technical problems that a postoperative patient needs to fix a wound (prevent the wound from being torn) and does not need to fix the wound (increase the oppressive feeling of the wound) when turning over, the bionics is applied to the technical field of cardiovascular postoperative care, and the technical effect of flexible adsorption type fixing of the wound is achieved by adopting a mode of combining octopus tentacle prevention type wound protection and elastic multipoint self-adaptive fitting.
Drawings
FIG. 1 is a schematic view of the overall structure of a bionic non-compression flexible joint fixed-point stabilization type cardiovascular postoperative care device provided by the invention;
FIG. 2 is a left side view of the bionic non-compression flexible fit fixed-point stabilization type cardiovascular postoperative care equipment provided by the invention;
FIG. 3 is a top view of the bionic non-compression flexible fitting fixed-point stabilization type cardiovascular postoperative care equipment provided by the invention;
FIG. 4 is a schematic view of a blood circulation-promoting soothing type support pad;
FIG. 5 is a schematic view of the overall structure of a heart rate monitoring and alarming mechanism of a bionic non-compression flexible joint fixed-point stabilization type cardiovascular postoperative care device provided by the invention;
FIG. 6 is a schematic view of the overall structure of the non-pressing type anti-laceration mechanism;
FIG. 7 is a top view of the non-compression anti-laceration mechanism;
FIG. 8 is a schematic view of the structure of the blood flow promoting device;
fig. 9 is a partial enlarged view of a portion a in fig. 8;
FIG. 10 is a front view of the blood flow facilitating device;
FIG. 11 is a top view of the blood flow facilitating device;
fig. 12 is a circuit diagram of the control unit.
Wherein, 1, a multifunctional bed, 2, a blood circulation promoting and relieving type supporting cushion, 3, a non-pressing type wound tearing preventing mechanism, 4, a heart rate monitoring and alarming mechanism, 5, a fixing ring, 6, a position adjusting device, 7, an elastic multi-point self-adaptive laminating device, 8, an octopus contact angle type wound protecting device, 9, a stable bandage, 10, a flexible cushion, 11, a sucking disc, 12, a laminating supporting body, 13, a connecting column, 14, a rotating block, 15, a self-adaptive spring, 16, a hollow air bag column, 17, a vertical adjusting piece, 18, a connecting block, 19, a transverse adjusting piece, 20, a first bandage, 21, a second bandage, 22, a seta magic tape, 23, a round hair paste, 24, a fixing cross rod, 25, a sliding block, 26, a heart rate monitoring piece, 27, a telescopic rope, 28, an LED lamp, 29, a loudspeaker, 30, a control assembly, 31, a clamping groove, 32 and a supporting cushion body, 33. ventilation relieving hole, 34, blood flow promoting device, 35, ventilation board, 36, air current circulation hole, 37, rotating electrical machine chamber, 38, rotating electrical machines, 39, diameter degree adjusting component, 40, water pocket rise and fall touch component, 41, bottom plate, 42, enclosure, 43, fixed plate, 44, diameter degree adjusting screw, 45, gag lever post, 46, adjusting electrical machines, 47, L-shaped moving member, 48, rotary table, 49, connecting rod, 50, gag lever post, 51, lifting rod, 52, water pocket, 53, relieving motor.
In the circuit diagram of the control assembly in fig. 12, VCC is a power supply of the circuit, GND is a ground terminal, S is a switch button, R1-R2 are resistors, C1-C2 are capacitors, VT1-VT3 are triodes, B1 is a heart rate monitor chip (piezoelectric ceramic chip), B2 is a speaker, LED1-LED2 is a light emitting diode, a is a music chip, a is a model KD9300, when the switch button is pressed, the circuit diagram of the control assembly starts to operate, the switch button S is closed, if the piezoelectric ceramic chip does not receive an external sound signal or vibration signal, the collector of the triode VT1 does not output, because of the isolation function of the capacitor C1, the triode VT2 is in a cut-off state, the latter music chip a does not receive a triggered signal, no music output is provided, when vibration or sound signal is input to the piezoelectric ceramic chip from the outside, the signal is input to the base of the triode VT1, amplified by the triode VT1, output by the collector of the triode VT1, coupled by the capacitor C1, and transmitted to the base of the triode VT2, when the negative half cycle of the sound signal is input to the base of the VT2, the triode VT2 is conducted, because it is a PNP triode, after the triode VT2 is conducted, the high level pulse signal is output at the collector, because the high level is triggered by the rear music chip A, the audio signal is output after the music chip A is triggered, after the amplification of the triode VT3, the speaker B2 is driven to give out sound prompt, and the LED1 and the LED2 connected in parallel to the speaker B2 twinkle to realize the technical effect of sound-light alarm prompt.
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.
As shown in figure 1, the invention provides bionic non-compression flexible laminating fixed-point stable type cardiovascular postoperative care equipment which comprises a multifunctional bed 1, a blood circulation promoting and relieving type bearing pad 2, a non-compression type wound tearing preventing mechanism 3 and a heart rate monitoring and alarming mechanism 4, wherein the blood circulation promoting and relieving type bearing pad 2 is arranged on the multifunctional bed 1, the non-compression type wound tearing preventing mechanism 3 is arranged on the multifunctional bed 1, and the heart rate monitoring and alarming mechanism 4 is arranged on the non-compression type wound tearing preventing mechanism 3.
As shown in fig. 1, fig. 3, fig. 4, fig. 8, fig. 9, fig. 10, and fig. 11, the blood circulation-promoting and relieving type supporting pad 2 includes a supporting pad body 32, ventilation relieving holes 33, and blood flow-promoting devices 34, wherein the supporting pad body 32 is disposed on the multifunctional bed 1, the ventilation relieving holes 33 are uniformly arranged on the supporting pad body 32 at intervals, and the blood flow-promoting devices 34 are disposed in the ventilation relieving holes 33; the blood flow promoting device 34 comprises a ventilation plate 35, an air flow circulation hole 36, a rotary motor cavity 37, a rotary motor 38, a radial degree adjusting component 39 and a water sac lifting contact component 40, wherein the ventilation plate 35 is arranged in the ventilation relieving hole 33, the air flow circulation hole 36 is uniformly arranged on the ventilation plate 35 at intervals, the rotary motor cavity 37 is arranged in the ventilation plate 35, the rotary motor 38 is arranged in the rotary motor cavity 37, the radial degree adjusting component 39 is connected with the rotary motor 38, and the water sac lifting contact component 40 is arranged on the radial degree adjusting component 39; the diameter adjusting component 39 comprises a bottom plate 41, an enclosure 42, a fixing plate 43, a diameter adjusting screw 44, a limiting rod 45 and an adjusting motor 46, the bottom plate 41 is connected with the rotating motor 38, the enclosure 42 is arranged on the upper wall of the bottom plate 41, the fixing plate 43 is arranged on the upper wall of the bottom plate 41, the adjusting motor 46 is arranged on the inner side wall of the enclosure 42, one end of the diameter adjusting screw 44 is connected with the adjusting motor 46, the other end of the diameter adjusting screw 44 is rotatably arranged on the fixing plate 43, one end of the limiting rod 45 is arranged on the enclosure 42, and the other end of the limiting rod 45 is arranged on the fixing plate 43; the water sac lifting touch component 40 comprises an L-shaped moving member 47, a rotary table 48, a connecting rod 49, a limiting frame 50, a lifting rod 51, a water sac 52 and a relieving motor 53, the L-shaped moving member 47 is sleeved on a radial adjusting screw 44 and a limiting rod 45, the rotary table 48 is rotatably arranged on the L-shaped moving member 47, one end of the connecting rod 49 is eccentrically arranged on the rotary table 48, the limiting frame 50 is arranged on the upper wall of the L-shaped moving member 47, the lifting rod 51 is clamped and slidably arranged on the limiting frame 50, one end of the lifting rod 51 is rotatably connected with the other end of the connecting rod 49, and the water sac 52 is arranged on the other end of the lifting rod 51.
As shown in fig. 1, 2, 6, and 7, the non-compression anti-laceration mechanism 3 includes a fixing ring 5, a position adjusting device 6, an elastic multi-point adaptive fitting device 7, an octopus tentacle type wound protection device 8, and a stabilizing band 9, the fixing ring 5 is disposed on the multifunctional bed 1, the position adjusting device 6 is disposed on the fixing ring 5, the elastic multi-point adaptive fitting device 7 is disposed on the position adjusting device 6, the octopus tentacle type wound protection device 8 is disposed on the elastic multi-point adaptive fitting device 7, and the stabilizing band 9 is disposed on the octopus tentacle type wound protection device 8; the octopus tentacle-preventing wound protection device 8 comprises a flexible soft pad 10 and suckers 11, wherein the flexible soft pad 10 is arranged on the elastic multipoint self-adaptive fitting device 7, and the suckers 11 are uniformly arranged on the flexible soft pad 10 at intervals; the elastic multipoint self-adaptive fitting device 7 comprises a fitting bearing body 12, a connecting column 13, a rotating block 14, a self-adaptive spring 15 and a hollow air bag column 16, wherein the rotating block 14 is rotatably arranged on the position adjusting device 6, the connecting column 13 is arranged on the bottom wall of the position adjusting device 6, the fitting bearing body 12 is arranged on the connecting column 13, the self-adaptive springs 15 are uniformly arranged on the fitting bearing body 12 at intervals, and the hollow air bag column 16 is arranged on the self-adaptive spring 15; the position adjusting device 6 comprises a vertical adjusting piece 17, a connecting block 18 and a transverse adjusting piece 19, wherein the vertical adjusting piece 17 is arranged on the fixing ring 5, the connecting block 18 is arranged at the movable end of the vertical adjusting piece 17, the transverse adjusting piece 19 is arranged on the connecting block 18, and the rotating block 14 is rotatably arranged at the movable end of the transverse adjusting piece 19; firm bandage 9 includes bandage one 20 and two 21 of bandage, and one side of flexible cushion 10 is located to bandage one 20, and the opposite side of flexible cushion 10 is located to two 21 of bandage, and the upper surface both sides of flexible cushion 10 are equipped with thorn hair magic tape 22, and the activity of bandage one 20 and two 21 of bandage is served the upper surface and is equipped with circle hair magic tape 23, and circle hair magic tape 23 and thorn hair magic tape 22 paste continuously.
As shown in fig. 1, 5 and 12, the heart rate monitoring and alarming mechanism 4 includes a fixed cross bar 24, a sliding block 25, a heart rate monitoring piece 26, a telescopic rope 27, an LED lamp 28, a speaker 29 and a control component 30, the fixed cross bar 24 is disposed on the transverse adjusting member 19, the sliding block 25 is slidably engaged with the fixed cross bar 24, the telescopic rope 27 is disposed on the bottom wall of the sliding block 25, the heart rate monitoring piece 26 is disposed on the telescopic rope 27, the LED lamp 28 is disposed on the upper wall of the fixed cross bar 24, the speaker 29 is disposed on the upper wall of the fixed cross bar 24, the control component 30 is disposed on the upper wall of the fixed cross bar 24, the heart rate monitoring piece 26, the LED lamp 28 and the speaker 29 are electrically connected with the control component 30, and the heart rate monitoring piece 26 is a piezoelectric ceramic piece; the fixed cross bar 24 is provided with an engaging groove 31, and the slide block 25 is slidably engaged with the engaging groove 31.
When the device is used specifically, a postoperative patient is arranged on the bearing pad body 32, the heart rate of the patient needs to be monitored after 4-6 hours of operation, and the patient needs to be timely treated when the postoperative heart rate is accelerated, but the prior device needs personnel to perform real-time monitoring and recording when monitoring, and the treatment time can be delayed without leaving attention, the heart rate monitoring alarm mechanism 4 is specially arranged, under the condition that personnel observation is not needed, the technical effect of automatic monitoring and alarming when the heart rate is too fast is automatically realized, firstly, the sliding block 25 slides to a proper position along the clamping groove 31, the heart rate monitoring sheet 26 is placed on the chest to perform real-time monitoring on the heart rate, the heart rate monitoring sheet 26 utilizes the inverse effect of piezoelectric ceramics as a detecting element for sound collection and vibration, when the heart rate is accelerated, the vibration of the heart rate monitoring sheet 26 at the moment is used for monitoring the increase of the heart rate, will transmit the signal to the control assembly 30, carry on the sound-light alarm to remind through LED lamp 28 and loudspeaker 29 after the control assembly 30 is handled, when the patient's health has discomfort in other respects, can also trigger the sound-light alarm through the way of the acoustic control, thereby make the doctor catch up with fast, realize the technological effect of timely treatment, then, start the vertical adjusting part 17 to adjust the height of the sucking disc 11, start the horizontal adjusting part 19 to adjust the horizontal position of the sucking disc 11, make it adapt to the patient's chest, make the flexible cushion 10 laminate the patient's chest, and make the sucking disc 11 adsorb at the chest, realize the technological effect that the flexible absorption formula is firm and fixed, through the mutual cooperation of hollow gasbag post 16 and adaptive spring 15, realize the technological effect of the fixed point nursing of the self-adaptation laminating of chest, pass bandage one 20 and bandage two 21 respectively at the patient's back, and make the round hair magic tape 23 and the thorn magic tape 22 paste and fix, in order to prevent the body tissues of a patient lying down for a long time from having poor blood circulation and skin from easily generating bedsores, the rotating motor 38 is started, the rotating motor 38 rotates to drive the bottom plate 41 to rotate, the bottom plate 41 rotates to drive the enclosing barrier 42 to rotate, the enclosing barrier 42 rotates to drive the diameter adjusting component 39 to rotate, the adjusting motor 46 rotates to drive the diameter adjusting screw 44 to rotate, the diameter adjusting screw 44 rotates to drive the L-shaped moving member 47 to move, the technical effect of flexibly adjusting the relieving point is achieved, the diameter adjusting component 39 rotates to drive the water sac lifting contact component 40 to rotate, meanwhile, the relieving motor 53 is started, the relieving motor 53 rotates to drive the turntable 48 to rotate, the turntable 48 rotates to drive the connecting rod 49 to rotate, the connecting rod 49 rotates to drive the lifting rod 51 to lift, the lifting rod 51 lifts to drive the water sac 52 to lift, the technical effect of relieving different parts of the skin of the patient is achieved, and the blood circulation is effectively promoted, the patient is prevented from bedsore, and the air flow is driven to circulate through the air flow circulation holes 36, so that the technical effect of circulating ventilation is achieved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.