Condensing plaster bandage shaper for arm

Abstract

This disclosure provides a condensing plaster cast shaping device for an arm, comprising a support body, multiple telescopic devices, multiple pressure sensors, an elastic pad, a condenser tube, and a cooler. A first and second main body portion of the support body are arc-shaped and connected to each other, rotating at the connection point to form a cylindrical shape when closed. The telescopic devices are located on the inner side of the support body, and the pressure sensors correspond to the telescopic devices and are located at the ends of the respective telescopic devices away from the support body. The 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 cast. The condenser tube is distributed within the first pad and connected to the cooler.

Description

Technical Field

[0001] This disclosure relates to the field of medical devices, and more specifically, to a condensing plaster cast shaping device for the arm. Background Technology

[0002] When patients suffer injuries to limbs such as fractures or cracks in the arm, plaster casts are used to shape and protect the injured area. In actual medical practice, doctors typically shape the plaster cast manually based on the specific location of the injured limb to match the shape of the injured area.

[0003] However, the plaster casts prepared in the above manner (after drying and shaping) are actually uneven inside and cannot avoid the injured area, which may put pressure on the injured area. In addition, it is difficult to ensure that the shape of the plaster cast matches the shape of the patient's limb precisely, which may easily lead to a large gap between the shaped plaster cast and the limb, resulting in an unsatisfactory protective effect, or the plaster cast may put too much pressure on the limb, causing patient discomfort or even secondary injury to the injured area (e.g., swelling). Furthermore, the plaster cast will slowly release heat over a long period of time as it covers the limb and solidifies, and this released heat is mainly absorbed by the covered patient's limb. This will significantly increase the pain of the injured part of the patient's limb, thus causing patient discomfort. Summary of the Invention

[0004] This disclosure provides a cooling plaster cast shaping device for an arm, comprising a support body, a telescopic array, a sensor array, an elastic pad, and a cooling device. The support body includes a first body portion and a second body portion, both arc-shaped and connected to each other. The first and second body portions rotate at their connection point to allow the support body to switch between open and closed states. In the closed state, the arc-shaped inner surfaces of the first and second body portions form a cylindrical shape. The telescopic array is located on the inner surface of the support body and includes multiple telescopic devices. The sensor array includes multiple pressure sensors corresponding to the telescopic devices, located at the ends of the corresponding telescopic devices away from the support body. The 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 cast. The condensing device includes condenser pipes and a cooler. The condenser pipes are distributed within the first pad 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. Then, the support body is closed. During the closing process, a pressure sensor controls the extension and retraction of a telescopic device 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. The support body is then opened again and the second pad is removed. The plaster bandage is then placed on the first pad and conforms to the surface of the first pad. The patient's arm is placed on the plaster bandage, and the support body is closed again to fix the plaster bandage to the patient's arm. The cooler is turned on to cool the first pad through the condenser pipes, thereby indirectly reducing the temperature of the plaster bandage located on the first pad.

[0005] In the above scheme, by setting a sensor array inside the cylindrical support body, the contact pressure between the second pad and the arm can be adjusted under the operation of the extension and retraction of the telescopic device. This allows the actual shape of the patient's arm to be detected. At this point, the arm shape is equivalent to the surface shape of the second pad away from the first pad (supported by the telescopic device). Then, during the plaster bandage preparation process, the second pad is removed and the plaster bandage (not yet solidified and still malleable) is placed on the first pad and compacted. At this point, the plaster bandage replaces the second pad, and its surface shape matches the shape of the patient's arm. Thus, based on this cooling plaster bandage shaping device, a plaster bandage that matches the actual shape of the patient's arm can be obtained, thereby improving the protection of the injured arm and the comfort of wearing the plaster bandage, which is beneficial to the recovery of the patient's arm. In addition, the cooling device can be used to cool the solidified plaster bandage to reduce the heat transferred to the patient's arm.

[0006] In one specific embodiment of the first aspect of this disclosure, the telescopic device includes a drive motor and a transmission rod, the drive motor being configured to drive the transmission rod to move along the length direction to cause the telescopic device to retract or extend, and a pressure sensor being connected to the end of the transmission rod.

[0007] In one specific embodiment of the first aspect of this disclosure, the telescopic device further includes a first magnetic element and a second magnetic element. The first magnetic element is connected to the end of the transmission rod away from the support body, and the second magnetic element is connected to a pressure sensor. The first magnetic element and the second magnetic element repel each other and are connected by a flexible wire.

[0008] In practice, the shaping device may have limitations in manufacturing precision, aging of electrical components, etc., which may cause a delay in the actuation of the telescopic device. If the force of the telescopic device's transmission rod is rigidly transmitted to the arm during extension, it may aggravate the pain in the injured area, causing discomfort to the patient, or even causing secondary injury. In the above solution, the repulsion between the first and second magnetic components creates a certain gap between them. This gap provides a buffer space for the movement of the second magnetic component, which in turn provides a buffer space for the movement of the pressure sensor, thus preventing the transmission rod from rigidly transmitting force to the patient's arm. In addition, the flexible wire can prevent the second magnetic component and the pressure sensor from detaching from the telescopic device.

[0009] In one specific embodiment of the first aspect of this disclosure, the telescopic device further includes a guide cylinder connected to the transmission rod, with the first magnetic element and the second magnetic element located within the guide cylinder. The guide cylinder can limit the relative positions of the first magnetic element and the second magnetic element to prevent the positions of the second magnetic element and the pressure sensor from shifting, thereby ensuring the shaping accuracy of the plaster bandage by the shaping device.

[0010] In one specific embodiment of the first aspect of this disclosure, 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. When the shaping device shapes the plaster bandage, the protrusion on the first pad can cause the surface of the plaster bandage to form a corresponding depression, where the plaster bandage thins. Thus, when the plaster bandage is bent and attached to the arm by closing the support body, it is easier for the plaster bandage to bend and deform, thereby avoiding local distortion caused by uneven force during bending.

[0011] In one specific embodiment of the first aspect of this disclosure, the condensing plaster bandage shaping device may further include a controller connected to a pressure sensor and a telescopic device. The controller stores pressure thresholds corresponding to the pressure sensor and is configured to receive pressure signals from the pressure sensor to control the extension and retraction of the telescopic device. Furthermore, the controller is connected to a cooler to control the on / off state of the cooler. Thus, during the acquisition of the arm's shape, the shaping device can operate automatically to control the accuracy of the arm's shape acquisition.

[0012] In one specific embodiment of the first aspect of this disclosure, the pressure threshold includes a first threshold and a second threshold, wherein the first threshold is less than the second threshold. When the arm is placed in 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 reaches the first threshold, the controller controls the telescopic device corresponding to the pressure sensor to stop extending. When the plaster cast is placed in 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. In this way, excessive pressure on the patient's arm can be avoided during the acquisition of the arm's shape, while sufficient pressure can be maintained during the shaping of the plaster cast to ensure shaping accuracy.

[0013] In one specific embodiment of the first aspect of this disclosure, the condensing plaster bandage shaping device may further include a display connected to a controller, the controller being configured to: after the elastic padding surface 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 degree of extension and retraction of the pressure sensor and the telescopic device, and projects the arm model onto the display; after the user selects the injury location of the arm based 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 contract.

[0014] In the above solution, the arm model is presented to the user (e.g., a doctor) to facilitate the identification of the injured area. After the first target telescopic device corresponding to the injured area contracts, the inner surface of the shaped plaster bandage forms a depression at the injured area (the inner side is depressed due to compression, and the outer side is raised), thus creating a gap between the plaster bandage and the injured part. This prevents the plaster bandage from compressing the injured area, which is beneficial for the recovery of the arm.

[0015] In one specific embodiment of the first aspect of this disclosure, the controller is configured as follows: after the controller establishes an arm model, it establishes the distribution of the main veins in the arm model and displays it on the display; after the user confirms the distribution of the main veins 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.

[0016] In the above scheme, after the second target telescopic device corresponding to the main vein contracts, the inner surface of the shaped plaster bandage can form a depression at the injured site (the inner side is depressed due to compression, and the outer side is raised), thereby creating a gap between the plaster bandage and the main vein. This prevents the plaster bandage from compressing the main vein, which is beneficial to the recovery of the arm.

[0017] In one specific embodiment of the first aspect of this disclosure, the controller is configured such that: the user selects a target area to avoid the injury location in the arm model, the controller filters the telescopic device corresponding to the target area as a third target telescopic device, and controls the third target telescopic device to extend, wherein the third target telescopic device corresponds to the connection point of the first main body and the second main body.

[0018] In the above scheme, after the third target telescopic device extends, it can make the outer side of the shaped plaster bandage form a depression (the inner side will be flat due to compression, and only the outer side will be depressed), thus making it easier to lock the sling. Attached Figure Description

[0019] Figure 1 A longitudinal cross-sectional view of a condensing plaster bandage mold provided in the closed state, according to an embodiment of the present disclosure.

[0020] Figure 2 To and Figure 1 The longitudinal section view of the corresponding shaping device in the open state.

[0021] Figure 3 To and Figure 1 The corresponding longitudinal section of the molding tool along its length.

[0022] Figure 4 for Figure 1 The diagram shown is a planar representation of the shaping device projected onto a two-dimensional plane, which unfolds the curved surface of the supporting body of the shaping device into a plane. Figure 4 The cross-sectional positions M1-N1 and Figure 1 and Figure 2 Corresponding to, Figure 4 The cross-sectional position M2-N2 in the middle Figure 3 Corresponding to.

[0023] Figure 5 This is a schematic diagram of the structure of the telescopic device in a condensing plaster bandage shaping device provided in an embodiment of the present disclosure.

[0024] Figure 6 for Figure 5 The diagram shows a further improved version of the telescopic device.

[0025] Figure 7A longitudinal cross-sectional view of a condensing plaster bandage mold provided in the closed state, according to an embodiment of the present disclosure.

[0026] Figure 8 This is a schematic diagram of the conceptual structure of a condensing plaster bandage shaping device according to an embodiment of the present disclosure.

[0027] Figure 9 This is a planar schematic diagram of a condensation plaster bandage shaping device provided in an embodiment of the present disclosure, projected onto a two-dimensional plane. Figure 4 The structure shown corresponds to the area where the first target telescopic device is located.

[0028] Figure 10 This is a planar schematic diagram of a condensation plaster bandage shaping device provided in an embodiment of the present disclosure, projected onto a two-dimensional plane. Figure 4 The structure shown corresponds to the area where the second target telescopic device is located.

[0029] Figure 11 This is a planar schematic diagram of a condensation plaster bandage shaping device provided in an embodiment of the present disclosure, projected onto a two-dimensional plane. Figure 4 The structure shown corresponds to the area where the third target telescopic device is located.

[0030] Explanation of reference numerals in the attached figures:

[0031] 100 - Support body; 110 - First main body section; 120 - Second main body section; 130 - Rotating shaft;

[0032] 200 - Telescopic device; 210 - Drive motor; 220 - Transmission rod; 231 - First magnetic component; 232 - Second magnetic component; 233 - Flexible wire; 240 - Guide cylinder;

[0033] 300 - Pressure sensor;

[0034] 400 - Elastic pad; 410 - First pad; 411 - Protrusion; 420 - Second pad;

[0035] 500-Controller;

[0036] 600 - Monitor;

[0037] 700 - Condensing unit; 710 - Condensing tube; 720 - Refrigerator;

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

[0039] The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this specification.

[0040] When a user's limbs, such as the arm, are injured (e.g., fractures, cracks), a cast is applied for protection, and plaster casts are commonly used and effective protective gear. Currently, plaster cast shaping is primarily done by hand by doctors based on the location and shape of the patient's injury. The shaping process generally involves soaking (or wetting), wrapping (wrapping the arm), shaping, and immobilization.

[0041] During the soaking process, if the plaster bandage is a separate structure, the bandage and plaster need to be mixed. The bandage can be layered in multiple layers, and each layer can be covered with a layer of plaster to obtain the plaster bandage of the required thickness.

[0042] The soaking process may include: completely immersing the plaster bandage in warm water until it stops bubbling (indicating sufficient water absorption), then removing it and gently squeezing out excess water to prevent dripping.

[0043] The wrapping process may include: spirally wrapping the plaster cast from the distal end of the fracture site (such as the wrist) to the proximal end (such as the elbow or upper arm), applying even pressure and overlapping each layer by 1 / 2 to 2 / 3, ensuring that the plaster cast fits tightly to the contour of the arm while leaving room for finger movement (such as slight movement of the metacarpophalangeal joints).

[0044] When soaked, plaster bandages are initially malleable. As time goes on, they gradually harden, take shape, and become fixed to the arm. During this process, the plaster bandages release some heat.

[0045] In the aforementioned process, the shaping effect of the plaster cast relies entirely on the doctor's experience, and the shaped plaster cast cannot perfectly match the shape of the arm. After the patient wears it, the pressure distribution of the plaster cast on the arm is uneven, which can cause discomfort if worn for a long time. Furthermore, prolonged pressure on the wound (which can easily cause swelling) is not conducive to wound healing. In addition, during the wrapping process, the plaster cast needs to be in constant contact with the arm, which inevitably puts pressure on the arm and causes discomfort to the patient. If pressure is applied to the injured area, it can even cause secondary damage to the injured area. Moreover, the plaster cast will slowly release heat over a long period of time as it covers the limb and solidifies. Because the plaster cast is now wrapped around the patient, almost all of this heat is borne by the patient. The increased temperature of the injured area will lead to a significant increase in pain, thus causing discomfort to the patient.

[0046] At least one embodiment of this disclosure provides a condensing plaster bandage shaping device for the arm to at least solve the aforementioned technical problems. Specifically, as Figures 1 to 4 as well as Figure 8 As shown, the condensing plaster bandage shaping device includes a support body 100, a telescopic array, a sensor array, an elastic pad 400, and a condensing device 700. The support body 100 includes a first main body portion 110 and a second main body portion 120, which are arc-shaped and connected to each other. The first main body portion 110 and the second main body portion 120 rotate at the connection point (e.g., a pivot 130) to allow the support body 100 to close (e.g., when closed). Figure 1 (as shown) and open (as shown) Figure 2 The system switches between the two configurations (shown in the diagram), and in the closed state, the arc-shaped inner surfaces of the first main body 110 and the second main body 120 form a cylindrical shape. A telescopic array is located on the inner surface of the support body 100 and includes multiple telescopic devices 200. The sensor array includes multiple pressure sensors 300 corresponding to each telescopic device 200, with the pressure sensors 300 located at the ends of the corresponding telescopic devices 200 away from the support body 100. An elastic pad 400 is located on the side of the sensor array away from the support body 100 and includes 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 is fixed to the pressure sensor 300 array. The second pad 420 is detachably connected to the first pad 410, and the thickness of the second pad 420 is equal to the thickness of the plaster bandage. A condensing device 700 includes a condenser pipe 710 and a cooler 720. The condenser pipe 710 is distributed within the first pad 410 and connected to the cooler 720.

[0047] like Figures 1 to 4The condensing plaster bandage shaping device shown in the diagram operates roughly as follows: The support body 100 is opened, and the patient's arm is placed on the elastic pad 400. Then, the support body 100 is closed. During closure, the pressure sensor 300 controls the telescopic device 200 to extend and retract based on the pressure transmitted 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 then opened again, the second pad 420 is removed, and then the patient's arm is placed... Plaster bandage is placed on the first pad 410 (i.e., the plaster bandage replaces the position of the second pad 420, which is therefore not shown in the figures) and conforms to the surface of the first pad 410 (e.g., by pressing the plaster bandage together to achieve conformality). The patient's arm is placed on the plaster bandage, and then the support body 100 is closed again to secure the plaster bandage to the patient's arm. Finally, the cooler 720 is turned on to cool the first pad 410 through the condenser 710, thereby indirectly reducing the temperature of the plaster bandage located on the first pad 410.

[0048] In the condensing plaster bandage shaping device disclosed herein, a sensor array is provided inside the cylindrical support body 100 to regulate the contact pressure between the second pad 420 and the arm under the operation of the extension and retraction of the telescopic device 200. This allows the detection of the actual shape of the patient's arm, which is equivalent to the surface shape of the second pad 420 away from the first pad 410 (supported by the telescopic device 200). Then, during the plaster bandage preparation process, the second pad 420 is removed, and the plaster bandage (not yet solidified and still malleable) is placed on the first pad 410 and compacted. The plaster bandage then replaces the second pad 420, and its surface shape matches the shape of the patient's arm. Thus, based on this condensing plaster bandage shaping device, a plaster bandage matching the actual shape of the patient's arm can be obtained, thereby improving the protection of the injured arm and enhancing the comfort of wearing the plaster bandage, which is beneficial to the patient's arm recovery. In addition, the cooling device 700 can be used to cool the solidified plaster bandage to reduce the heat transferred to the patient's arm, thereby facilitating the recovery of the injured area.

[0049] In the embodiments of this disclosure, the condensing material used in the condenser tube 710 of the condensing device 700 is not limited. It can be a gaseous 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), fluorinated liquid (such as perfluoropolyether), hydrated salts (such as calcium chloride hexahydrate), etc. The condensing material can be selected according to actual needs, and there are no restrictions on this in the embodiments of this disclosure.

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

[0051] In the embodiments disclosed herein, the type of elastic pad 400 is not limited and can be selected according to actual process requirements. For example, the type of elastic pad 400 can be polyurethane (PU) foam, silicone rubber pad, elastic fabric base pad, etc.

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

[0053] In at least one embodiment of this disclosure, such as Figure 1 , Figure 2 and Figure 4 As shown, the condenser tube 710 is positioned to avoid the support area (force application area) of each telescopic device 200 on the first pad 410, thereby preventing the first pad 410 from being compressed by the telescopic device 200 and ensuring the unobstructed flow of the condenser tube 710.

[0054] In the embodiments of this disclosure, as long as the telescopic device 200 has the function of contraction and extension 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 the actual process requirements.

[0055] For example, such as Figure 5 As shown, the telescopic device 200 includes a drive motor 210 and a transmission rod 220. The drive motor 210 is configured to drive the transmission rod 220 to move along its length to cause the telescopic device 200 to retract or extend. A pressure sensor 300 is connected to the end of the transmission rod 220. During the retraction or extension of the telescopic device 200, the pressure between the pressure sensor 300 and the user's arm (the pressure indirectly transmitted through the elastic pad 400) can be controlled.

[0056] For example, the drive motor 210 can be a servo motor, a stepper motor, or other types of motors, which can be selected according to the actual process requirements.

[0057] It should be noted that in the embodiments of this disclosure, the arrangement density of the telescopic device 200 is not limited. 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 may have limited manufacturing precision, aging of electrical components, etc., which may cause a delay in the driving of the telescopic device 200. If the force of the transmission rod 220 of the telescopic device 200 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, or even cause secondary injury to the injured part.

[0059] To address the aforementioned issues, the telescopic device 200 can be improved to provide a cushioning function during extension. Specifically, for example... Figure 6 As shown, in one specific embodiment of the first aspect of this disclosure, the telescopic device 200 further includes a first magnetic element 231 and a second magnetic element 232. The first magnetic element 231 is connected to the end of the transmission rod 220 away from the support body 100, and the second magnetic element 232 is connected to the pressure sensor 300. The first magnetic element 231 and the second magnetic element 232 repel each other and are connected by a flexible wire 233. The repulsion between the first magnetic element 231 and the second magnetic element 232 creates a gap between them, which provides a buffer space for the movement of the second magnetic element 232, thereby also providing a buffer space for the movement of the pressure sensor 300, preventing the transmission rod 220 from rigidly transmitting force to the patient's arm. Furthermore, the flexible wire 233 prevents the second magnetic element 232 and the pressure sensor 300 from detaching from the telescopic device 200.

[0060] In one specific embodiment of the first aspect of this disclosure, the telescopic device 200 further includes a guide cylinder 240, which is connected to the transmission rod 220, and the first magnetic element 231 and the second magnetic element 232 are located within the guide cylinder 240. The guide cylinder 240 can limit the relative position of the first magnetic element 231 and the second magnetic element 232 to prevent the position of the second magnetic element 232 and the pressure sensor 300 from shifting, thereby ensuring the shaping accuracy of the plaster bandage by the shaping device.

[0061] It should be noted that a wiring connection is required between the pressure sensor 300 and the drive motor 210 of the telescopic device 200 to achieve signal control. Therefore, the flexible wire 233 may include conductive wiring such as metal stranded wire, thereby also having a signal transmission function; or, the above wiring may also be set separately, thereby avoiding restrictions on the material selection of the flexible wire 233.

[0062] In one specific embodiment of the first aspect of this disclosure, such as Figure 7As shown, the surface of the first pad 410 away from the support body 100 has a strip-shaped protrusion 411. The protrusion 411 is located at the connection between the first body portion 110 and the second body portion 120 and extends along the connection between the first body portion 110 and the second body portion 120. When the shaping device shapes the plaster bandage, the protrusion 411 on the first pad 410 can cause a corresponding depression to form on the surface of the plaster bandage. The plaster bandage is thinned at the depression. In this way, when the plaster bandage is bent by closing the support body 100 to attach it to the arm, it is easier for the plaster bandage to bend and deform, so as to avoid local distortion caused by uneven force during the bending process.

[0063] It should be noted that when the plaster bandage is placed on the first pad 410, it will be pressed and shaped. Because the plaster bandage has strong deformation ability at this time, while the plaster bandage forms a depression that matches the protrusion 411, its inner surface (the surface away from the first pad 410) will still maintain a roughly flat shape and will not form a corresponding convex surface due to the existence of the depression. That is, the plaster bandage is thinned at the protrusion 411, and the thickness at other positions can remain roughly unchanged.

[0064] In at least one embodiment of this disclosure, such as Figure 8 As shown, the condensing plaster bandage shaping device may further include a controller 500, which is connected to a pressure sensor 300 and a telescopic device 200. The controller 500 stores pressure thresholds corresponding to the pressure sensor 300 and is configured to receive pressure signals from the pressure sensor 300 to control the extension and retraction of the telescopic device 200. Furthermore, the controller 500 is connected to a cooler 720 to control the on / off state of the cooler 720. Thus, during the acquisition of the arm's shape, the shaping device can operate automatically to control the accuracy of the arm's shape acquisition.

[0065] It should be noted that, in the embodiments of this disclosure, the controller 500 has an integrated circuit structure with signal processing and corresponding command issuance functions. It can be integrated with the aforementioned support body 100 and other structures, or it can be set up independently of these 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 this disclosure, the pressure threshold includes a first threshold and a second threshold, wherein the first threshold is less than the second threshold. When the arm is placed in the support body 100, the controller 500 switches the pressure threshold to the first threshold. When the pressure sensor 300 detects that the pressure transmitted by the arm reaches the first threshold, the controller 500 controls the telescopic device 200 corresponding to the pressure sensor 300 to stop extending. When the plaster bandage is placed in the support body 100, the controller 500 switches the pressure threshold to the second threshold. When the pressure sensor 300 detects that the pressure transmitted by the arm reaches the second threshold, the controller 500 controls the telescopic device 200 corresponding to the pressure sensor 300 to stop extending. In this way, excessive pressure on the patient's arm can be avoided during the acquisition of the arm's shape, while sufficient pressure can be provided during the shaping of the plaster bandage to ensure shaping accuracy.

[0067] In at least one embodiment of this disclosure, such as Figure 8 and Figure 9 As shown, the condensing plaster cast shaping device may also include a display 600, which is connected to a controller 500. 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 degree of extension and retraction of the pressure sensor 300 and the telescopic device 200, and projects the arm model onto the display 600; after the user selects the injured location of the arm based on the display 600, the controller 500 selects the telescopic device 200 corresponding to the injured location as the first target telescopic device (located at the position corresponding to region P1), and controls the first target telescopic device to contract. The arm model is presented intuitively to the user (e.g., a doctor) to facilitate the identification of the injured area. After the first target telescopic device corresponding to the injured area contracts, the inner surface of the shaped plaster cast can form a depression at the injured area (the inner side is depressed due to compression, and the outer side is raised), thereby creating a gap between the plaster cast and the injured part. This prevents the plaster cast from compressing the injured area, which is beneficial for the recovery of the arm.

[0068] It should be noted that, in the embodiments disclosed herein, the display 600 may be integrated with the aforementioned support body 100 and other structures, or it may be set up independently of these structures. For example, in the latter design, the display 600 may be a computer screen used by a doctor.

[0069] In at least one embodiment of this disclosure, such as Figure 8 and Figure 10As shown, the controller 500 is configured as follows: After establishing an arm model, the controller 500 establishes the distribution of the main veins in the arm model and displays it on the display 600; after the user confirms the distribution of the main veins in the arm model, the controller 500 selects the corresponding telescopic device 200 of the main vein as the second target telescopic device (located at the position corresponding to region P2) and controls the second target telescopic device to contract. Thus, after the second target telescopic device corresponding to the main vein contracts, the inner surface of the shaped plaster cast can form a depression at the injured site (the inner side is depressed due to compression, and the outer side is convex), thereby creating a gap between the plaster cast and the main vein. This prevents the plaster cast from compressing the main vein, which is beneficial for arm recovery.

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

[0071] It should be noted that during prolonged wear of plaster casts, patients may also face problems such as poor ventilation leading to sweat not evaporating in time, resulting in damp and hot arms. The aforementioned second target elastic device is distributed along the main vein. Correspondingly, the depression formed on the inner surface of the plaster cast due to the second target elastic device will run through the entire plaster cast along the main vein, thus also having a ventilation function to alleviate problems such as dampness and heat.

[0072] In at least one embodiment of this disclosure, such as Figure 8 and Figure 11 As shown, the controller 500 is configured such that: the user selects a target area in the arm model to avoid the injured location; the controller 500 selects the telescopic device 200 corresponding to the target area as the third target telescopic device (located at the position corresponding to area P3), and controls the extension of the third target telescopic device. The third target telescopic device corresponds to the connection point between the first main body 110 and the second main body 120. Thus, after the third target telescopic device extends, it creates a concave shape on the outer surface of the shaped plaster cast (the inner side will be flat due to compression, only the outer side will be concave), facilitating the locking of the sling. This sling can be wrapped around the patient's neck to suspend the arm wrapped in the plaster cast.

[0073] The above description is merely a preferred embodiment of this specification and is not intended to limit this specification. Any modifications or equivalent substitutions made within the spirit and principles of this specification should be included within the scope of protection of this specification.

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; A 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; A controller is connected to the pressure sensor and the telescopic device, wherein the controller stores a pressure threshold corresponding to the pressure sensor and is configured to accept the pressure signal from the pressure sensor 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. The display is connected to the controller; 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. Then the support body is 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. This causes the surface of the elastic pad away from the support body to be shaped under the pressure of the arm and the telescopic array. 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 builds an arm model based on the pressure sensor and the degree of extension and retraction of the telescopic device, and projects the arm model onto the display. After the user selects the injury location of the arm based 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. 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 molded condensation gypsum bandage of claim 2, wherein, 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 molded condensation gypsum bandage of claim 3, wherein, 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, 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.

7. The condensing plaster bandage shaping device according to any one of claims 1 to 4, 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.

8. The molded condensation gypsum bandage of any one of claims 1 to 4, 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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