Condensation type plaster bandage shaping device for arm

Abstract

The invention provides a condensation type plaster bandage shaping device for an arm. The condensation type plaster bandage shaping device comprises a supporting body, a plurality of telescopic devices, a plurality of pressure sensors, an elastic liner, a condensation pipe and a refrigerator. The first main body part and the second main body part of the supporting main body are arc-shaped, are connected with each other, and rotate at the joint so as to enable the first main body part and the second main body part to define a cylinder in a closed state. The telescopic devices are located on the inner side face of the supporting body. The pressure sensors correspond to the telescopic devices and are located at the ends, away from the supporting body, of the corresponding telescopic devices. The elastic pad is located on the side, away from the supporting body, of the sensor array and comprises a first pad and a second pad, the first pad is located between the sensor array and the second pad, the first pad is fixed to the pressure sensor array, the second pad is detachably connected with the first pad, and the thickness of the second pad is equal to that of the plaster bandage. The condensation pipes are distributed in the first liner and connected with the refrigerator.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of medical devices, and in particular, to a condensing plaster bandage shaper for an arm. BACKGROUND

[0002] When a patient encounters an injury such as a fracture, a bone fracture, etc. of a limb such as an arm, the patient will use a plaster wrap to shape and protect the injured part. In actual medical treatment, a doctor usually manually shapes a plaster bandage based on the specific position of the injured limb of the patient to match the shape of the injured part of the patient.

[0003] However, the inside of the plaster bandage prepared in the above manner (after drying and completing shaping) is actually uneven, and it is difficult to avoid the injured part, which can cause compression to the injured part; in addition, it is difficult to ensure that the shape of the plaster bandage matches the shape of the patient's limb, which can easily lead to a large gap between the shaped plaster bandage and the limb, resulting in an unsatisfactory protection effect, or the plaster bandage compresses the limb too much, causing discomfort to the patient and even causing secondary injury to the injured part (for example, the injured part can have swelling); in addition, the plaster bandage covers the limb and slowly releases heat during the shaping and solidification process, and the released heat is mainly absorbed by the covered patient's limb, which can greatly increase the pain of the injured part of the patient's limb, causing discomfort to the patient. SUMMARY

[0004] The first aspect of the present disclosure provides a condensing plaster cast shaper for an arm, which comprises a support main body, an array of stretchers, an array of sensors, an elastic pad and a condensing device. The support main body comprises a first main body part and a second main body part, which are arc-shaped and connected to each other, and are rotatable at the connection to switch the support main body between opening and closing, and in the closed state, the inner sides of the arc shapes of the first main body part and the second main body part enclose a cylindrical shape. The array of stretchers is located on the inner side of the support main body and comprises a plurality of stretchers, and the array of sensors comprises a plurality of pressure sensors corresponding to the stretchers respectively, and the pressure sensors are located at the ends of the corresponding stretchers away from the support main body. The elastic pad is located on the side of the array of sensors away from the support main body and comprises a first pad and a second pad, the first pad is located between the array of sensors and the second pad, and the first pad is fixed on the array of pressure sensors, and the second pad is detachably connected with the first pad, and the thickness of the second pad is equal to the thickness of the plaster cast. The condensing device comprises a condensing pipe and a refrigerating device, the condensing pipe is distributed in the first pad and connected with the refrigerating device. The condensing plaster cast shaper is configured to: open the support main body, place the arm of a patient on the elastic pad, and then close the support main body, in the process of closing, the pressure sensors control the stretchers to stretch and retract based on the pressure transmitted by the elastic pad and the arm in contact, so that the surface of the elastic pad away from the support main body is shaped under the pressure of the arm and the array of stretchers; open the support main body again and detach the second pad, then place the plaster cast on the first pad and conform to the surface of the first pad, place the arm of the patient on the plaster cast, and then close the support main body again to fix the plaster cast on the arm of the patient; turn on the refrigerating device to cool the first pad through the condensing pipe to indirectly reduce the temperature of the plaster cast located on the first pad.

[0005] In the above scheme, by arranging the array of sensors on the inner side of the support main body capable of forming a cylindrical shape, the contact pressure between the second pad and the arm can be regulated under the operation of the stretchers stretching and retracting, etc., so that the actual shape of the arm of the patient can be detected, at this time the arm shape is equivalent to the surface shape of the second pad away from the first pad (at this time supported by the stretchers), and then in the process of preparing the plaster cast, by detaching the second pad and placing the plaster cast (at this time not yet solidified, having plasticity) on the first pad, the plaster cast is compacted, at this time the plaster cast replaces the second pad so that its surface shape also matches the shape of the arm of the patient. In this way, based on the condensing plaster cast shaper, a plaster cast matching the actual shape of the arm of the patient can be obtained, thereby improving the protection effect of the injured arm of the patient and improving the comfort of wearing the plaster cast, which is conducive to the recovery of the arm of the patient. In addition, the condensing device can be used to cool the plaster cast in a solidified state to reduce the heat transferred to the arm of the patient.

[0006] In one specific implementation of the first aspect of the present disclosure, the telescopic device comprises a driving motor and a transmission rod, the driving motor is configured to drive the transmission rod to move along the length direction so as to make the telescopic device retract or extend, and the pressure sensor is connected to the end of the transmission rod.

[0007] In one specific implementation of the first aspect of the present disclosure, the telescopic device further comprises a first magnetic member and a second magnetic member, the first magnetic member is connected to the end of the transmission rod away from the support body, the second magnetic member is connected to the pressure sensor, the first magnetic member and the second magnetic member repel each other, and the first magnetic member and the second magnetic member are connected through a flexible wire.

[0008] In actual operation, the shaping device may have limited manufacturing precision, aging of electrical components and other factors, which may cause delay in driving the telescopic device. If the force of the transmission rod of the telescopic device is rigidly transmitted to the arm during the extension operation, it may aggravate the pain of the injured part and cause discomfort to the patient, and even cause secondary injury to the injured part. In the above scheme, the repulsion between the first magnetic member and the second magnetic member causes a certain gap between the first magnetic member and the second magnetic member, which provides a buffer space for the movement of the second magnetic member, thereby also providing a buffer space for the movement of the pressure sensor, so as to avoid the transmission rod rigidly transmitting the force to the patient's arm. In addition, the flexible wire can prevent the second magnetic member and the pressure sensor from being separated from the telescopic device.

[0009] In one specific implementation of the first aspect of the present disclosure, the telescopic device further comprises a guide cylinder, the guide cylinder is connected to the transmission rod and the first magnetic member and the second magnetic member are located in the guide cylinder. The guide cylinder can limit the relative position of the first magnetic member and the second magnetic member to avoid the position of the second magnetic member and the pressure sensor deviating, thereby ensuring the shaping precision of the shaping device on the plaster bandage.

[0010] In one specific implementation of the first aspect of the present disclosure, the surface of the first gasket away from the support body has a strip-shaped protrusion, the protrusion is located at the connection between the first body part and the second body part and extends along the connection between the first body part and the second body part. When the shaping device shapes the plaster bandage, the protrusion on the first gasket can form a corresponding recess on the surface of the plaster bandage, and the plaster bandage is thinned at the recess. Thus, when the support body is closed to bend the plaster bandage so as to attach the plaster bandage on the arm, the plaster bandage can be easily bent and deformed to avoid local distortion of the plaster bandage due to uneven stress during the bending process.

[0011] In one embodiment of the first aspect of the present disclosure, the condensation gypsum bandage shaper further comprises a controller connected to the pressure sensor and the telescopic device, the controller stores a pressure threshold corresponding to the pressure sensor, and is configured to receive the pressure signal of the pressure sensor to control the telescopic device, and the controller is connected to the refrigeration device to control the on-off state of the refrigeration device. In this way, the shaper can be operated automatically to control the accuracy of the collection of the arm shape during the collection of the arm shape.

[0012] In one embodiment of the first aspect of the present disclosure, the pressure threshold comprises a first threshold and a second threshold, the first threshold is smaller than the second threshold. When the arm is placed in the support body, the controller switches the pressure threshold to the first threshold, and when the pressure sensor detects that the pressure transmitted by the arm reaches the first threshold, the controller controls the corresponding telescopic device of the pressure sensor to stop extending. When the gypsum bandage is placed in the support body, the controller switches the pressure threshold to the second threshold, and when the pressure sensor detects that the pressure transmitted by the arm reaches the second threshold, the controller controls the corresponding telescopic device of the pressure sensor to stop extending. In this way, the patient's arm can be prevented from being subjected to excessive pressure during the collection of the arm shape, and sufficient pressure can be provided during the shaping of the gypsum bandage to ensure the shaping accuracy.

[0013] In one embodiment of the first aspect of the present disclosure, the condensation gypsum bandage shaper further comprises a display connected to the controller, the controller is configured to: after the surface of the elastic pad away from the support body is shaped under the pressure of the arm and the telescopic array, the controller establishes an arm model based on the pressure sensor and the telescopic degree of the telescopic device, and projects the arm model into the display; after the user selects the injured position of the arm based on the display, the controller screens the telescopic device corresponding to the injured position as a first target telescopic device, and controls the first target telescopic device to retract.

[0014] In the above scheme, the arm model is intuitively presented to the user (e.g. a doctor) to facilitate the determination of the injured part, and after the first target telescopic device corresponding to the injured part is retracted, a concave (the inner side is concave and the outer side is convex) is formed on the inner side surface of the shaped gypsum bandage at the injured part, so that a gap is formed between the gypsum bandage and the injured part, which prevents the gypsum bandage from pressing the injured part, thereby facilitating the recovery of the arm.

[0015] In one embodiment of the first aspect of the present disclosure, the controller is configured to: after the controller establishes the arm model, the controller establishes the distribution of the main vein in the arm model and presents it in the display; after the user confirms the distribution of the main vein in the arm model, the controller screens the telescopic device corresponding to the main vein as a second target telescopic device, and controls the second target telescopic device to retract.

[0016] In the above scheme, after the second target telescopic device corresponding to the main vein is contracted, the inner side surface of the shaped plaster cast can form a depression at the injured part (the inner side presents a depression due to compression, and the outer side presents a protrusion), so that there is a gap between the plaster cast and the main vein, which makes the plaster cast not compress the main vein, thereby facilitating the recovery of the arm.

[0017] In one specific embodiment of the first aspect of the present disclosure, the controller is configured to: a user selects a target area avoiding the injured position in the arm model, the controller filters the telescopic device corresponding to the position based on the target area as a third target telescopic device, and controls the third target telescopic device to extend out, wherein the third target telescopic device corresponds to the connection between the first main body part and the second main body part.

[0018] In the above scheme, after the third target telescopic device is extended out, the outer part of the shaped plaster cast can form a depression (the inner side will present a plane due to compression, and only the outer side will present a depression), thereby facilitating the clamping of the sling. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A longitudinal sectional view of the condensing plaster cast shaper in the closed state is provided for an embodiment of the present disclosure.

[0020] Figure 2 A longitudinal sectional view of the shaper corresponding to Figure 1 in the open state.

[0021] Figure 3 A longitudinal sectional view of the shaper corresponding to Figure 1 in the length direction.

[0022] Figure 4 A plane schematic view of the shaper shown in Figure 1 projected onto a two-dimensional plane, which unfolds the arc surface of the support main body of the shaper into a plane, wherein, Figure 4 the cross-sectional positions M1-N1 in Figure 1 and Figure 2 correspond to, Figure 4 the cross-sectional positions M2-N2 in Figure 3 correspond to.

[0023] Figure 5 A structural schematic view of the telescopic device in the condensing plaster cast shaper provided for an embodiment of the present disclosure.

[0024] Figure 6 A structural schematic view of the telescopic device shown in Figure 5 further improved.

[0025] Figure 7A longitudinal sectional view along the radial direction of a condensing gypsum bandage shaper in a closed state is provided for an embodiment of the present disclosure.

[0026] Figure 8 A conceptual structural diagram of a condensing gypsum bandage shaper is provided for an embodiment of the present disclosure.

[0027] Figure 9 A planar diagram of a condensing gypsum bandage shaper projected onto a two-dimensional plane is provided for an embodiment of the present disclosure, which corresponds to the structure shown in Figure 4 , and shows the area where the first target telescopic device is located.

[0028] Figure 10 A planar diagram of a condensing gypsum bandage shaper projected onto a two-dimensional plane is provided for an embodiment of the present disclosure, which corresponds to the structure shown in Figure 4 , and shows the area where the second target telescopic device is located.

[0029] Figure 11 A planar diagram of a condensing gypsum bandage shaper projected onto a two-dimensional plane is provided for an embodiment of the present disclosure, which corresponds to the structure shown in Figure 4 , and shows the area where the third target telescopic device is located.

[0030] Legend of reference signs:

[0031] 100 - support main body; 110 - first main body part; 120 - second main body part; 130 - rotation shaft;

[0032] 200 - telescopic device; 210 - driving motor; 220 - transmission rod; 231 - first magnetic part; 232 - second magnetic part; 233 - flexible wire; 240 - guide cylinder;

[0033] 300 - pressure sensor;

[0034] 400 - elastic gasket; 410 - first gasket; 411 - protrusion; 420 - second gasket;

[0035] 500 - controller;

[0036] 600 - display;

[0037] 700 - condensing device; 710 - condensing pipe; 720 - refrigerating device;

[0038] P1 - area where the first target telescopic device is located; P2 - area where the second target telescopic device is located; P3 - area where the third target telescopic device is located. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present specification will be clearly and completely described in the present specification with reference to the drawings in the embodiments of the present specification. Obviously, the described embodiments are only a part of the embodiments of the present specification, rather than all the embodiments. Based on the embodiments in the present specification, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present specification.

[0040] After the user's limbs, such as the arm, are injured (for example, bone fracture, bone fracture, etc.), a plaster cast is applied for protection, and the plaster cast is a commonly used effective plaster protector. In the current plaster cast shaping process, the doctor basically makes it manually according to the patient's injury position and shape. The shaping and making of the plaster cast generally need to go through soaking (or wetting), winding (wrapping the arm), shaping and fixing.

[0041] In the soaking process, if the plaster cast is a separate structure, the cast and the plaster need to be mixed. The cast can be provided with multiple layers of stacking. Each layer of plaster can be covered to obtain a plaster cast with the required thickness.

[0042] The soaking process can include: completely soaking the plaster cast in warm water, taking it out after it stops bubbling (sufficient water absorption), and gently squeezing the excess water to avoid dripping.

[0043] The winding process can include: spirally winding the plaster from the distal end (such as the wrist) to the proximal end (such as the elbow or upper arm) of the fracture site. The winding force is uniform, each layer is overlapped by 1 / 2-2 / 3, and the plaster is ensured to closely fit the arm contour while reserving finger movement space (such as the metacarpophalangeal joint can move slightly).

[0044] The plaster cast will have a certain plasticity in the initial state after soaking. With the extension of time, the plaster cast will gradually harden to complete the shaping and be fixed on the arm. In this process, the plaster cast will release a certain amount of heat.

[0045] In the above process, the shaping effect of the plaster cast completely depends on the doctor's experience, and the shaped plaster cast cannot completely match the arm shape. After the patient wears it, the pressure distribution of the plaster cast on the arm is uneven, the user will feel uncomfortable for a long time, and if the wound position is compressed for a long time (easy to swell), it is not conducive to wound recovery. In addition, in the winding process, the plaster cast needs to directly contact the arm for operation, which will inevitably cause a certain pressure on the arm and cause the patient to feel uncomfortable. If the injured position is compressed, it will also cause secondary injury to the injured position. In addition, the plaster cast covers the limbs and slowly releases heat during the shaping and hardening process. Because the plaster cast has covered the patient's body at this time, the heat is almost completely borne by the patient, and the temperature rise of the injured part will greatly increase the pain, thereby causing the patient to feel uncomfortable.

[0046] At least one embodiment of the present disclosure provides a condensing plaster bandage shaper for arm to at least solve the above technical problems. Specifically, as shown in Figures 1 to 4 and Figure 8 , the condensing plaster bandage shaper comprises a support body 100, a telescopic array, a sensor array, an elastic pad 400 and a condensing device 700. The support body 100 comprises a first body part 110 and a second body part 120, which are arc-shaped and connected to each other, and are rotatable at the connection (e.g. a rotating shaft 130) to switch the support body 100 between closed (as shown in Figure 1 ) and open (as shown in Figure 2 ), and in the closed state, the inner side of the arc-shaped first body part 110 and the second body part 120 enclose a cylindrical shape. The telescopic array is located on the inner side of the support body 100 and comprises a plurality of telescopic devices 200, and the sensor array comprises a plurality of pressure sensors 300 corresponding to the telescopic devices 200 respectively, and the pressure sensors 300 are located at the end of the corresponding telescopic devices 200 away from the support body 100. The elastic pad 400 is located on the side of the sensor array away from the support body 100 and comprises a first pad 410 and a second pad 420, the first pad 410 is located between the sensor array and the second pad 420, and the first pad 410 is fixed on the array of pressure sensors 300, and the second pad 420 is detachably connected with the first pad 410, and the thickness of the second pad 420 is equal to the thickness of the plaster bandage. The condensing device 700 comprises a condensing pipe 710 and a refrigerating device 720, the condensing pipe 710 is distributed in the first pad 410 and connected with the refrigerating device 720.

[0047] As shown in Figures 1 to 4The cold condensation gypsum bandage shaper shown in the figure is roughly as follows in actual operation: the support body 100 is opened, the patient's arm is placed on the elastic pad 400, and then the support body 100 is closed, in the process of closing, the pressure sensor 300 controls the telescopic device 200 to extend or retract based on the pressure transmitted by the contact between the elastic pad 400 and the arm, so that the surface of the elastic pad 400 away from the support body 100 is shaped under the pressure of the arm and the telescopic array; the support body 100 is opened again and the second pad 420 is removed, then the gypsum bandage is placed on the first pad 410 (i.e., the gypsum bandage replaces the position of the second pad 420, so it is not shown in the figure) and conforms to the surface of the first pad 410 (e.g., the gypsum bandage is pressed to achieve conformity), the patient's arm is placed on the gypsum bandage, and then the support body 100 is closed again to fix the gypsum bandage on the patient's arm; finally, the refrigerator 720 is turned on to cool the first pad 410 through the condensing pipe 710 to indirectly reduce the temperature of the gypsum bandage located on the first pad 410.

[0048] In the cold condensation gypsum bandage shaper provided in the present disclosure, by arranging the sensor array inside the support body 100 capable of forming a cylindrical shape, the contact pressure between the second pad 420 and the arm is regulated under the operation of the telescopic device 200 extending or retracting, so that the actual shape of the patient's arm can be detected, at this time the arm shape is equivalent to the surface shape of the second pad 420 away from the first pad 410 (at this time supported by the telescopic device 200), and then in the process of preparing the gypsum bandage, by removing the second pad 420 and placing the gypsum bandage (at this time not yet solidified, having plasticity) on the first pad 410, the gypsum bandage is compacted, at this time the gypsum bandage replaces the second pad 420 so that its surface shape also matches the shape of the patient's arm. In this way, based on the cold condensation gypsum bandage shaper, a gypsum bandage matching the actual shape of the patient's arm can be obtained, thereby improving the protection effect of the patient's injured arm and improving the comfort of wearing the gypsum bandage, which is conducive to the recovery of the patient's arm. In addition, the condensing device 700 can be used to cool the gypsum bandage in a solidified state to reduce the heat transferred to the patient's arm, thereby facilitating the recovery of the patient's injured part.

[0049] In the embodiments of the present disclosure, the condensing material used by the condensing pipe 710 of the condensing device 700 is not limited, which can be a gas material such as tetrafluoroethane, pentafluoroethane + difluoromethane, carbon dioxide, propane, nitrogen, etc., or a liquid material such as deionized water, ethylene glycol aqueous solution, mineral oil (such as paraffin-based oil, etc.), fluorinated liquid (such as perfluoropolyether, etc.), hydrated salt (such as calcium chloride hexahydrate, etc.). The condensing material can be selected according to actual needs, which is not limited in the embodiments of the present disclosure.

[0050] In embodiments of the present disclosure, the type of the refrigerating device 720 of the condensing device 700 is not limited, and can be selected according to actual needs. For example, the refrigerating device 720 can be a compression refrigerating device (including a compressor), a semiconductor refrigerating device, an absorption refrigerating device, a throttling refrigerating device, or the like.

[0051] In embodiments of the present disclosure, the type of the elastic pad 400 is not limited, and can be selected according to actual process needs. For example, the type of the elastic pad 400 can be a polyurethane (PU) foam type, a silicone rubber pad type, an elastic fabric-based pad type, or the like.

[0052] In embodiments of the present disclosure, the distribution and shape of the condensing pipe 710 in the first pad 410 are not limited, as long as the condensing pipe 710 can ensure the cooling effect (or heat dissipation) on the first pad 410.

[0053] In at least one embodiment of the present disclosure, as shown in Figure 1 , Figure 2 and Figure 4 , the position of the condensing pipe 710 avoids the support area (force area) of each telescopic device 200 on the first pad 410, so as to avoid the compression of the first pad 410 on the condensing pipe 710 during the extrusion of the telescopic device 200, thereby ensuring the smoothness of the condensing pipe 710.

[0054] In embodiments of the present disclosure, as long as the telescopic device 200 can have a telescopic function to control the shape of the first pad 410, the specific structure of the telescopic device 200 is not limited, and the specific structure of the telescopic device 200 can be designed and selected according to actual process needs.

[0055] For example, as shown in Figure 5 , the telescopic device 200 includes a driving motor 210 and a transmission rod 220, the driving motor 210 is configured to drive the transmission rod 220 to move along the length direction to make the telescopic device 200 contract or extend, and the pressure sensor 300 is connected to the end of the transmission rod 220. During the contraction or extension of the telescopic device 200, the pressure (indirectly transmitted by the elastic pad 400) between the pressure sensor 300 and the user's arm can be controlled.

[0056] For example, the driving motor 210 can be a servo motor, a stepper motor, or other types of motors, and the specific type can be selected according to actual process needs.

[0057] It should be noted that, in embodiments of the present disclosure, the arrangement density of the telescopic device 200 is not limited, and the greater the arrangement density of the telescopic device 200, the higher the shaping accuracy of the plaster bandage.

[0058] In actual operation, the shaping device can have limited manufacturing precision, aging of electrical components, and other factors, which can cause a delay in the driving of the telescopic device 200. If the driving rod 220 of the telescopic device 200 rigidly transmits force to the arm during the extension operation, it can aggravate the pain of the injured part and cause discomfort to the patient, and even cause secondary injury to the injured part.

[0059] To solve the above problems, the telescopic device 200 can be improved to have a buffering function during extension. Specifically, as shown in Figure 6 In one specific embodiment of the first aspect of the present disclosure, the telescopic device 200 further includes a first magnetic member 231 and a second magnetic member 232. The first magnetic member 231 is connected to the end of the driving rod 220 away from the support body 100, and the second magnetic member 232 is connected to the pressure sensor 300. The first magnetic member 231 and the second magnetic member 232 repel each other, and the first magnetic member 231 and the second magnetic member 232 are connected by a flexible wire 233. The repulsion between the first magnetic member 231 and the second magnetic member 232 causes a certain gap between the first magnetic member 231 and the second magnetic member 232, which provides a buffer space for the movement of the second magnetic member 232, and also provides a buffer space for the movement of the pressure sensor 300, so as to avoid the driving rod 220 rigidly transmitting force to the patient's arm. In addition, the flexible wire 233 can prevent the second magnetic member 232 and the pressure sensor 300 from being detached from the telescopic device 200.

[0060] In one specific embodiment of the first aspect of the present disclosure, the telescopic device 200 further includes a guide cylinder 240, which is connected to the driving rod 220 and in which the first magnetic member 231 and the second magnetic member 232 are located. The guide cylinder 240 can limit the relative position of the first magnetic member 231 and the second magnetic member 232 to prevent the position of the second magnetic member 232 and the pressure sensor 300 from deviating, thereby ensuring the shaping precision of the shaping device on the plaster bandage.

[0061] It should be noted that a wire connection is required between the pressure sensor 300 and the driving motor 210 of the telescopic device 200 to realize signal control. Therefore, the flexible wire 233 can include conductive wires such as metal twisted wires, thereby having a signal transmission function. Alternatively, the above-mentioned wires can be separately provided, thereby avoiding limiting the material selection of the flexible wire 233.

[0062] In one specific embodiment of the first aspect of the present disclosure, as shown in Figure 7As shown, the surface of the first pad 410 away from the support body 100 has a strip-shaped protrusion 411, which is located at and extends along the connection between the first body part 110 and the second body part 120. When the shaper shapes the plaster cast, the protrusion 411 on the first pad 410 can cause the surface of the plaster cast to form a corresponding recess, in which the plaster cast is thinned. Thus, when the plaster cast is closed by the support body 100 to bend the plaster cast and attach the plaster cast on the arm, the bending deformation of the plaster cast can be facilitated to avoid local distortion of the plaster cast caused by uneven force during the bending process.

[0063] It should be noted that when the plaster cast is placed on the first pad 410, the plaster cast is pressed to be shaped. Since the plaster cast has strong deformation ability at this time, the inner surface (the surface away from the first pad 410) of the plaster cast can still maintain a substantially flat shape while forming a recess matching the protrusion 411, and will not form a corresponding convex surface due to the existence of the recess, i.e., the plaster cast is thinned at the protrusion 411, and the thickness of the plaster cast at other positions can be substantially unchanged.

[0064] In at least one embodiment of the present disclosure, as shown in Figure 8 The condensing plaster cast shaper can further include a controller 500 connected with the pressure sensor 300 and the telescopic device 200. The controller 500 stores a pressure threshold corresponding to the pressure sensor 300, and is configured to receive the pressure signal of the pressure sensor 300 to control the extension and retraction of the telescopic device 200. In addition, the controller 500 is connected with the refrigeration device 720 to control the on-off state of the refrigeration device 720. Thus, the shaper can be operated automatically to control the collection accuracy of the arm shape during the collection of the arm shape.

[0065] It should be noted that in the embodiments of the present disclosure, the controller 500 has an integrated circuit structure with signal processing and corresponding instruction issuing functions, which can be integrated with the above-mentioned support body 100 and the like, or can be independently provided from the structures. For example, in the latter design, the controller 500 can be a computer host used by a doctor.

[0066] In at least one embodiment of the present disclosure, the pressure threshold includes a first threshold and a second threshold, the first threshold being smaller than the second threshold. When the arm is placed into the support body 100, the controller 500 switches the pressure threshold to the first threshold, and when the pressure sensor 300 detects that the pressure transmitted by the arm reaches the first threshold, the controller 500 controls the corresponding telescopic device 200 of the pressure sensor 300 to stop extending. When the plaster cast is placed into the support body 100, the controller 500 switches the pressure threshold to the second threshold, and when the pressure sensor 300 detects that the pressure transmitted by the arm reaches the second threshold, the controller 500 controls the corresponding telescopic device 200 of the pressure sensor 300 to stop extending. In this way, the patient's arm can be prevented from being subjected to excessive pressure during the collection of the arm shape, and sufficient pressure can be provided during the shaping of the plaster cast to ensure the shaping accuracy.

[0067] In at least one embodiment of the present disclosure, as shown in Figure 8 and Figure 9 The condensation type plaster cast shaper can further include a display 600 connected with the controller 500, and the controller 500 is configured to: after the surface of the elastic pad 400 away from the support body 100 is shaped under the pressure of the arm and the telescopic array, the controller 500 establishes an arm model based on the pressure sensor 300 and the telescopic degree of the telescopic device 200, and projects the arm model into the display 600; after the user selects the injured position of the arm based on the display 600, the controller 500 screens the telescopic device 200 corresponding to the injured position as a first target telescopic device (located at the position corresponding to the area P1), and controls the first target telescopic device to retract. The arm model is intuitively presented to the user (such as a doctor) to facilitate the determination of the injured position, and after the first target telescopic device corresponding to the injured position retracts, a concave can be formed on the inner surface of the shaped plaster cast at the injured position (the inner side presents a concave and the outer side presents a convex due to the pressing), so that a gap is formed between the plaster cast and the injured part, which prevents the plaster cast from pressing the injured part, thereby facilitating the recovery of the arm.

[0068] It should be noted that in the embodiments of the present disclosure, the display 600 can be integrated with the aforementioned support body 100 and the like, or can be independently provided from the structures. For example, in the latter design, the display 600 can be a computer display screen used by a doctor.

[0069] In at least one embodiment of the present disclosure, as shown in Figure 8 and Figure 10As shown, the controller 500 is configured to: after the controller 500 establishes the arm model, establish the distribution of the vein trunks in the arm model and present in the display 600; after the user confirms the distribution of the vein trunks in the arm model, the controller 500 screens the second target stretching device (located at the position corresponding to the region P2) corresponding to the vein trunks, and controls the second target stretching device to contract. In this way, after the second target stretching device corresponding to the vein trunks contracts, the inner side surface of the shaped plaster bandage can form a depression (the inner side presents a depression due to compression, and the outer side presents a protrusion) at the injured part, so that there is a gap between the plaster bandage and the vein trunks, which makes the plaster bandage not compress the vein trunks, so as to facilitate the recovery of the arm.

[0070] It should be noted that the region P1 where the first target stretching device is located can exist independently of the region P2 where the second target stretching device is located, or the two can overlap, that is, there is no conflict between the region P1 where the first target stretching device is located and the region P2 where the second target stretching device is located.

[0071] It should be noted that during the long wearing process of the plaster bandage, the patient can also face the problem of wet heat of the arm caused by poor ventilation and inability of sweat to evaporate in time. The second target stretching device above is distributed along the vein trunks, and accordingly, the depression formed on the inner side surface of the plaster bandage by the second target stretching device will penetrate through the entire plaster bandage along the vein trunks, thereby also having a ventilation function to alleviate the problem of wet heat.

[0072] In at least one embodiment of the present disclosure, as shown in Figure 8 and Figure 11 As shown, the controller 500 is configured to: the user selects a target region avoiding the injured position in the arm model, the controller 500 screens the third target stretching device (located at the position corresponding to the region P3) corresponding to the position based on the target region, and controls the third target stretching device to extend, wherein the third target stretching device corresponds to the connection position of the first main body part 110 and the second main body part 120. In this way, after the third target stretching device extends, the outside of the shaped plaster bandage can form a depression (the inner side will present a plane due to compression, and only the outer side will present a depression), thereby facilitating the clamping of the sling. The sling can be wrapped around the patient's neck for suspending the arm wrapped with the plaster bandage.

[0073] The above only describes the preferred embodiments of the present disclosure and is not intended to limit the present disclosure. Any modification, equivalent replacement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A condensing plaster cast shaping device for the arm, characterized in that, include: The support body includes a first main body and a second main body. The first main body and the second main body are arc-shaped and connected to each other. The first main body and the second main body rotate at the connection point so that the support body can switch between opening and closing. In the closed state, the arc-shaped inner surfaces of the first main body and the second main body form a cylindrical shape. A telescopic array, located on the inner side of the support body and comprising multiple telescopic devices; The sensor array includes multiple pressure sensors corresponding to the telescopic device, the pressure sensors being located at the ends of the corresponding telescopic device that are away from the support body; An elastic pad is located on the side of the sensor array away from the support body and includes a first pad and a second pad. The first pad is located between the sensor array and the second pad and is fixed to the pressure sensor array. The second pad is detachably connected to the first pad and the thickness of the second pad is equal to the thickness of the plaster bandage. as well as A condensing device includes condenser tubes and a cooler, wherein the condenser tubes are distributed in the first gasket and connected to the cooler; The condensing plaster bandage shaping device is configured as follows: The support body is opened, and the patient's arm is placed on the elastic pad. The support body is then closed. During the closing process, the pressure sensor controls the telescopic device to extend and retract based on the pressure transmitted between the elastic pad and the arm, so that the surface of the elastic pad away from the support body is shaped under the pressure of the arm and the telescopic array. Open the support body again and remove the second pad. Then place the plaster bandage on the first pad and conform it to the surface of the first pad. Place the patient's arm on the plaster bandage. Then close the support body again to secure the plaster bandage to the patient's arm. Turn on the cooler to cool the first pad through the condenser tube, thereby indirectly reducing the temperature of the plaster bandage located on the first pad.

2. The condensing plaster bandage shaping device according to claim 1, characterized in that, The telescopic device includes a drive motor and a transmission rod. The drive motor is configured to drive the transmission rod to move along the length direction so that the telescopic device retracts or extends. The pressure sensor is connected to the end of the transmission rod.

3. The condensing plaster bandage shaping device according to claim 2, characterized in that, The telescopic device further includes a first magnetic component and a second magnetic component. The first magnetic component is connected to the end of the transmission rod away from the support body, and the second magnetic component is connected to the pressure sensor. The first magnetic component and the second magnetic component repel each other, and the first magnetic component and the second magnetic component are connected by a flexible wire.

4. The condensing plaster bandage shaping device according to claim 3, characterized in that, The telescopic device further includes a guide cylinder, which is connected to the transmission rod, and the first magnetic element and the second magnetic element are located inside the guide cylinder.

5. The condensing plaster bandage shaping device according to any one of claims 1 to 4, characterized in that, The surface of the first pad away from the support body has a strip-shaped protrusion located at the junction of the first body portion and the second body portion, and extending along the junction of the first body portion and the second body portion.

6. The condensing plaster bandage shaping device according to any one of claims 1 to 4, characterized in that, It also includes a controller, wherein the controller is connected to the pressure sensor and the telescopic device. The controller stores pressure thresholds corresponding to the pressure sensors and is configured to accept pressure signals from the pressure sensors to control the extension and retraction of the telescopic device. The controller is connected to the cooler to control the on / off state of the cooler.

7. The condensing plaster bandage shaping device according to claim 6, characterized in that, The pressure threshold includes a first threshold and a second threshold, wherein the first threshold is smaller than the second threshold. When the arm is placed into the support body, the controller switches the pressure threshold to the first threshold. When the pressure sensor detects that the pressure transmitted by the arm has reached the first threshold, the controller controls the telescopic device corresponding to the pressure sensor to stop extending. When the plaster bandage is placed into the support body, the controller switches the pressure threshold to the second threshold. When the pressure sensor detects that the pressure transmitted by the arm reaches the second threshold, the controller controls the telescopic device corresponding to the pressure sensor to stop extending.

8. The condensing plaster bandage shaping device according to claim 6, characterized in that, It also includes a display, wherein the display is connected to the controller, and the controller is configured to: After the surface of the elastic pad furthest from the support body is shaped under the pressure of the arm and the telescopic array, the controller builds an arm model based on the pressure sensor and the degree of extension of the telescopic device, and projects the arm model onto the display; and After the user selects the location of the arm injury on the display, the controller filters the telescopic device corresponding to the injury location as the first target telescopic device and controls the first target telescopic device to retract.

9. The condensing plaster bandage shaping device according to claim 8, characterized in that, The controller is configured as follows: After the controller establishes the arm model, it establishes the distribution of the main veins in the arm model and displays it on the display; and After the user confirms the distribution of the main vein in the arm model, the controller selects the telescopic device corresponding to the main vein as the second target telescopic device and controls the second target telescopic device to contract.

10. The condensing plaster bandage shaping device according to claim 8, characterized in that, The controller is configured as follows: The user selects a target area to avoid the injury location in the arm model. The controller then filters the telescopic device corresponding to the target area as the third target telescopic device and controls the third target telescopic device to extend. The third target telescopic device corresponds to the connection point between the first main body and the second main body.

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