CN107361898B - Plaster support - Google Patents
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- CN107361898B CN107361898B CN201710534407.6A CN201710534407A CN107361898B CN 107361898 B CN107361898 B CN 107361898B CN 201710534407 A CN201710534407 A CN 201710534407A CN 107361898 B CN107361898 B CN 107361898B
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- arm plate
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/04—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints
- A61F5/05—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints for immobilising
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/04—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints
- A61F5/05—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints for immobilising
- A61F5/058—Splints
- A61F5/05841—Splints for the limbs
- A61F5/05858—Splints for the limbs for the arms
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- Health & Medical Sciences (AREA)
- Nursing (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The invention discloses a gypsum tray, comprising: plaster splints including upper arm posterior plaster splints and forearm posterior plaster splints; a rotary joint which comprises an upper arm plate for fixing the upper arm rear side plaster splint, a forearm plate connected with the forearm rear side plaster splint in a sliding way, a rotary shaft for connecting the upper arm plate and the forearm plate in a rotating way, and a pressing mechanism for realizing the locking and the rotation of the forearm plate and the upper arm plate; pressing means sets up on the rotation axis, and pressing means is including pressing splenium, spline portion and spacing portion, and the upper arm plate is equipped with the location portion of accomodating spline portion, and the front arm plate is equipped with and spacing portion matched with interlock portion, presses the splenium to set up to: when the rotation stopping part is separated from the positioning part, the limiting part is separated from the occlusion part. The plaster support can be used for external fixation at a fixed angle at regular time after elbow joint operation, so that the effect of preventing and treating postoperative elbow joint stiffness is achieved.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a gypsum support.
Background
The elbow joint is a complex joint with a complex structure, after fracture, stiffness easily occurs, the function of the upper limb is seriously influenced, great troubles are caused to daily life and work of a patient, the physical and mental health of the patient is seriously influenced, in addition, in recent years, along with the increase of traffic accidents and overhead work, the incidence rate of the stiffness of the elbow joint of the patient caused by trauma also rises year by year, and the disability rate of the patient also increases year by year. Therefore, the prevention and treatment of elbow joint dysfunction become a hot spot and a difficult point in the medical field at present.
The cause of the elbow joint stiffness is complex and often the result of multi-factor combined action, wherein soft tissue adhesion, contracture and thickening around the joint are considered to be the most common and important factors causing the elbow joint stiffness. In recent years, more and more attention is paid to the application of elbow joint orthotics, the orthotics become main auxiliary devices for sports trauma surgery, orthopedic surgery braking, fixing, treatment, rehabilitation training and the like in developed countries in europe and america, some orthopedic doctors in China also begin to recognize the advantages of the orthotics, and the orthotics are applied to the fields of clinical nerve rehabilitation and orthopedic rehabilitation. The rehabilitation therapy method of 'external fixation with fixed angle at fixed time' after elbow joint trauma can effectively recover joint function, and the plaster support is required to be applied when the rehabilitation therapy of 'external fixation with fixed angle at fixed time' is carried out. The orthopedic device is a novel plaster support developed abroad in recent years, and the principle of the orthopedic device is to maintain the mobility of the damaged joint by utilizing the movement function of a metal hinge between plaster sections so as to carry out rehabilitation exercise. The prior orthotics are required to be individually designed and manufactured by a brace manufacturer in application, so that the manufacturing time is long, the cost is high, and the popularization and the application of the orthotics are limited. Because the movable shaft of the orthosis is mostly positioned at the two sides of the elbow joint, the treatment and the nursing of the operation opening are influenced, and some orthoses are too heavy and cannot be used for patients needing postoperative early rehabilitation treatment. Therefore, no plaster support which can be applied to postoperative early rehabilitation treatment exists in the market at present.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
It is still another object of the present invention to provide a plaster tray which can be used for external fixation at a fixed angle after an elbow joint operation to prevent and treat postoperative elbow joint stiffness. The working principle of the invention is as follows: the rotation joint is used for connecting the upper arm rear side gypsum splint with the forearm rear side gypsum splint, the movable angle of the gypsum support is controlled by the rotation shaft and the pressing mechanism, and the vertical connecting line of the rotation shaft and the elbow joint movable shaft, the far end of the forearm rear side gypsum splint to the rotation shaft vertical connecting line and the far end of the forearm rear side gypsum splint to the elbow joint movable shaft vertical connecting line form a triangle due to the fact that the rotation shaft and the elbow joint movable shaft are not coaxial, so that the movement of the elbow joint is limited.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a plaster tray comprising:
plaster splints including upper arm posterior plaster splints and forearm posterior plaster splints;
a rotary joint including an upper arm plate to which a rear side plaster splint for an upper arm is fixed, a forearm plate slidably connected to the rear side plaster splint for a forearm, a rotary shaft to rotatably connect the upper arm plate and the forearm plate, and a pressing mechanism to lock and rotate the forearm plate and the upper arm plate; pressing means sets up on the rotation axis, pressing means is including pressing splenium, rotation stopping portion and spacing portion, the upper arm plate is equipped with and accomodates the location portion of rotation stopping portion, the front arm plate be equipped with spacing portion matched with interlock portion, press the splenium to set up to: when the rotation stopping part is separated from the positioning part, the limiting part is separated from the occlusion part.
Preferably, the medical device further comprises a bandage, wherein the bandage is used for fixedly connecting the upper arm rear side plaster splint with the upper arm and fixedly connecting the forearm rear side plaster splint with the forearm.
Preferably, the one end of the upper arm rear side gypsum splint be equipped with upper arm plate one end joint and fixed recess, the forearm board is equipped with the spout on keeping away from a curb plate face of rotation axis and not laminating forearm, be equipped with the slide in the spout, the length of slide is greater than the length of spout, the one end and the forearm rear side gypsum splint joint of slide for forearm rear side gypsum splint can remove along the length direction of forearm along with the slide, thereby realize the sliding connection of forearm rear side gypsum splint and forearm board.
Preferably, the other end of the upper arm plate and one end of the front arm plate are both provided with sleeves, and spaces for the rotating shafts to penetrate through are formed in the sleeves.
Preferably, the rotating shaft includes a first cylindrical portion and a second cylindrical portion which are coaxial, the diameter of the first cylindrical portion is larger than that of the second cylindrical portion, a first end face tooth is arranged on a lower end face of the first cylindrical portion and forms the limiting portion, a pair of positioning rods is arranged in the middle of the second cylindrical portion along the radial direction and forms the rotation stopping portion, and a threaded hole is arranged in the end, which is not connected with the first cylindrical portion, of the second cylindrical portion along the axial direction;
the other end of the upper arm plate is provided with a first sleeve, and the first sleeve is axially provided with a first space for the second cylindrical part to pass through and form the positioning part;
a second sleeve and a third sleeve which are coaxial are arranged at one end of the front arm plate, the second sleeve is sunken in the direction of the third sleeve along the axial direction to form a first annular concave portion, second end face teeth meshed with the first end face teeth are arranged on the upper surface of the first annular concave portion to form the meshing portion, a second space for the second cylindrical portion to penetrate through is arranged in the first annular concave portion along the axial direction, the second space is communicated with the first space, and the third sleeve is sunken in the direction of the second sleeve along the axial direction to form a second annular concave portion;
the second cylinder portion is not still equipped with the one end that first cylinder portion is connected: the screw is screwed in the threaded hole, the end face of the screw is fixedly connected with the head of the screw, and the two ends of the return spring are respectively abutted against the end face of the second annular concave part and the fixed cover; the fixing cover is of a hollow cylinder structure with one open end, the open end of the fixing cover extends into the second annular concave part and does not contact with the end face of the second annular concave part, the fixing cover wraps the reset spring, and the fixing cover and the screw form the pressing part.
Preferably, an annular notch penetrating through the first space is further formed in the first sleeve, the diameter of the annular notch is smaller than the outer diameter of the first sleeve and slightly larger than the maximum width of the second cylindrical portion in the radial direction, and the position of the positioning rod is set as follows: when the positioning rod is positioned in the annular notch, the first end face teeth are separated from the second end face teeth and are not meshed any more.
Preferably, the length of the upper arm plate is 8-10 cm, the length of the forearm plate is 4-7 cm, and the length of the slider is 8-10 cm.
Preferably, the upper arm plate, the front arm plate and the sliding piece are all made of metal materials.
Preferably, the sliding groove is formed by two L-shaped metal plates which are oppositely and fixedly arranged on the plate surface of the front arm plate far away from the rear side of the front arm, and the inner right angles of the two L-shaped metal plates are opposite to each other and form a channel which limits the sliding piece in the channel, so that the sliding piece can slide along the length direction of the front arm.
The invention at least comprises the following beneficial effects:
firstly, the rotating shaft of the rotating joint of the plaster support is positioned behind the elbow joint, the angle of the plaster splint can be adjusted and locked according to different angle requirements during the functional rehabilitation treatment of the elbow joint, the plaster support is smooth in movement and stable in fixation, the plaster splint can be cut and loaded according to the requirements, the plaster support is suitable for patients of different ages, the plaster support is simple to assemble with the rotating joint, can be completed beside a sickroom bed, and is simple and quick to manufacture;
secondly, the upper arm rear side gypsum splint is connected with the forearm rear side gypsum splint by using a rotary joint, the movable angle of the gypsum support is controlled by a rotary shaft and a pressing mechanism, and a triangle is formed by a vertical connecting line of the rotary shaft and an elbow joint movable shaft, a vertical connecting line of the far end of the forearm rear side gypsum splint to the rotary shaft and a vertical connecting line of the far end of the forearm rear side gypsum splint to the elbow joint movable shaft due to the fact that the rotary shaft and the elbow joint movable shaft are not coaxial, so that the movement of the elbow joint is limited, a sliding groove is designed on the forearm plate, the change of the triangle is achieved by changing the length of the side length from the far end of the triangular forearm rear side gypsum splint to the vertical connecting line of the rotary shaft, the elbow joint and the rotary shaft can freely move, and the elbow joint can be fixed outside at a fixed angle at regular time after operation, and the effect of preventing and curing the postoperative elbow joint stiffness is achieved;
thirdly, a first sleeve is arranged at the other end of the upper arm plate, and a first space for the second cylindrical part to penetrate through is axially arranged in the first sleeve to form a positioning part; one end of the front arm plate is provided with a second sleeve and a third sleeve which are coaxial, the second sleeve is recessed towards the direction of the third sleeve along the axial direction to form a first annular concave part, the upper surface of the first annular concave part is provided with second end face teeth meshed with the first end face teeth and forms the meshing part, the first annular concave part is provided with a second space for the second cylindrical part to pass through along the axial direction, the second space is communicated with the first space, and the third sleeve is recessed towards the direction of the second sleeve along the axial direction to form a second annular concave part; the second sleeve, the first sleeve and the third sleeve penetrate through the second cylindrical part from top to bottom, and a positioning part and a meshing part are formed, so that the upper arm plate and the front arm plate can be mutually fixed and stable;
fourth, the inside of first sleeve still is equipped with the annular breach that link up with first space, and the diameter of annular breach is less than first telescopic external diameter, slightly is greater than the maximum width of second cylinder portion along radial direction, and the position of locating lever sets up to: when the positioning rod is positioned in the annular notch, the first end face teeth and the second end face teeth are separated and are not meshed, and the positioning rod can rotate in the annular notch through the setting of the annular notch, so that the upper arm plate and the front arm plate can rotate along the rotating shaft, and the elbow joint can move conveniently;
fifthly, the screw of the threaded hole, the fixing cover with the end face fixedly connected with the head of the screw and the reset spring with the two ends respectively abutting against the end face of the second annular concave part and the fixing cover enable the fixing cover and the screw to form a pressing part, the fixing cover is pressed to push the positioning rod to be separated from the positioning part, the first end face teeth and the second end face teeth are driven to be separated, and therefore the front arm plate is rotated to change the opening angle of the rotary joint, and further the moving angle of the elbow joint is adjusted.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic view of a gypsum tray;
FIG. 2 is a schematic structural view of a rotary joint;
FIG. 3 is a schematic structural view of the forearm plate;
FIG. 4 is a schematic view of the structure of the rotating shaft;
FIG. 5 is a schematic structural view of the upper arm plate;
FIG. 6 is a schematic structural view of the fixing cover;
FIG. 7 is a schematic view of a screw;
FIG. 8 is a schematic view of the structure of the slide groove and the slide plate;
Detailed Description
The present invention is described in further detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 to 8, a plaster tray includes:
plaster splints including an upper arm posterior plaster splint 51 and a forearm posterior plaster splint 52;
a rotary joint including an upper arm plate 1 to which an upper arm posterior plaster splint 51 is fixed, a forearm plate 2 slidably connected to a forearm posterior plaster splint 52, a rotary shaft 3 that rotatably connects the upper arm plate 1 and the forearm plate 2, and a pressing mechanism that realizes locking and rotation of the forearm plate 2 and the upper arm plate 1; the pressing mechanism is arranged on the rotating shaft 3, the pressing mechanism comprises a pressing portion 41, a rotation stopping portion 42 and a limiting portion 43, the upper arm plate 1 is provided with a positioning portion 421 for accommodating the rotation stopping portion 42, the front arm plate 2 is provided with an engaging portion 44 matched with the limiting portion 43, and the pressing portion 41 is arranged as follows: when the rotation-stopping portion 42 is disengaged from the positioning portion 421, the limiting portion 43 is disengaged from the engaging portion 44.
The use method of the gypsum support comprises the following steps: will go up arm plate 1 and paste and lean on in the upper arm rear side, will forearm plate 2 pastes and leans on in the forearm rear side, then is fixed with upper arm plate 1 and upper arm rear side gypsum splint 51, with forearm plate 2 and forearm rear side gypsum splint 52 sliding connection, presses it makes to press splenium 41 the rotation stopping portion 42 with location portion 421 breaks away from, drives spacing portion 43 with interlock portion 44 breaks away from mutually to rotate forearm plate 2 in order to change rotary joint's opening angle, and then adjust elbow joint's movable angle. The rotating shaft 3 of the rotating joint of the plaster support is positioned behind the elbow joint, the angle of the plaster splint can be adjusted and locked according to different angle requirements during the functional rehabilitation treatment of the elbow joint, the plaster support is smooth in movement and stable in fixation, the plaster splint can be cut and loaded according to the requirements, the plaster support is suitable for patients of different ages, the plaster support is simple to assemble with the rotating joint, can be completed by a sickroom bedside, and is simple and quick to manufacture; the upper arm rear side plaster splint 51 is connected with the forearm rear side plaster splint 52 by using a rotary joint, the moving angle of the plaster support is controlled by the rotary shaft 3 and the pressing mechanism, because the rotary shaft 3 is not coaxial with the moving shaft of the elbow joint, a triangle is formed by the vertical connecting line of the rotary shaft 3 and the elbow joint shaft, the vertical connecting line of the far end of the forearm rear side plaster splint 52 to the rotary shaft 3, and the vertical connecting line of the far end of the forearm rear side plaster splint 52 to the elbow joint moving shaft, the moving of the elbow joint is limited, the length of the side length of the vertical connecting line of the far end of the triangular forearm rear side plaster splint 52 to the rotary shaft 3 is changed to achieve the change of the triangle inner angle, so that the elbow joint and the rotary shaft 3 can move freely, and the external fixation with the fixed angle is carried out after the elbow joint operation, thereby achieving the function of preventing and curing the postoperative elbow joint stiffness.
In another embodiment, a bandage (not shown) is further included to fixedly connect the upper arm posterior plaster splint 51 and the upper arm, and the forearm posterior plaster splint 52 and the forearm, so that the upper arm posterior plaster splint 51 and the upper arm, and the forearm posterior plaster splint 52 and the forearm do not slide during the movement of the elbow joint.
In another technical scheme, as shown in fig. 8, the one end of upper arm rear side gypsum splint 51 be equipped with go up 1 one end joint of armboard and fixed recess (not shown in the figure), forearm board 2 is equipped with spout 21 on keeping away from rotation axis 3 and not laminating the lateral plate of forearm, be equipped with slide 22 in the spout 21, the length of slide 22 is greater than the length of spout 21, the one end and the forearm rear side gypsum splint 52 joint of slide 22 for forearm rear side gypsum splint 52 can move along the length direction of forearm along with slide 22, thereby realize forearm rear side gypsum splint 52 and forearm board 2's sliding connection.
In another technical solution, as shown in fig. 1 to 5, sleeves are respectively disposed at the other end of the upper arm plate 1 and one end of the front arm plate 2, and a space for the rotation shaft 3 to pass through is disposed in each sleeve, so that the upper arm plate 1 and the front arm plate 2 can rotate along the rotation shaft 3.
In another technical solution, as shown in fig. 1 to 6, the rotating shaft 3 includes a first cylindrical portion 31 and a second cylindrical portion 32 which are coaxial, a diameter of the first cylindrical portion 31 is larger than a diameter of the second cylindrical portion 32, a lower end surface of the first cylindrical portion 31 is provided with a first end surface tooth and forms the limiting portion 43, a middle portion of the second cylindrical portion 32 is provided with a pair of positioning rods along a radial direction and forms the rotation stopping portion 42, and an end of the second cylindrical portion 32, which is not connected to the first cylindrical portion 31, is provided with a threaded hole 321 along an axial direction;
the other end of the upper arm plate 1 is provided with a first sleeve 101, and the first sleeve 101 is provided with a first space for the second cylindrical part 32 to pass through along the axial direction and forms the positioning part 421;
a second sleeve 201 and a third sleeve 202 which are coaxial are arranged at one end of the forearm plate 2, the second sleeve 201 is recessed in the direction of the third sleeve 202 along the axial direction to form a first annular recess 203, the upper surface of the first annular recess 203 is provided with second end face teeth meshed with the first end face teeth and forms the engagement part 44, the first annular recess 203 is provided with a second space for the second cylindrical part 32 to pass through along the axial direction, the second space is communicated with the first space, the third sleeve 202 is recessed in the direction of the second sleeve 201 along the axial direction to form a second annular recess 204, the second sleeve 201, the first sleeve 101 and the third sleeve 202 pass through from top to bottom through the second cylindrical part 32 and form a positioning part 421 and an engagement part 44, so that the forearm plate 1 and the forearm plate 2 can be fixed and stabilized with each other;
the end of the second cylindrical portion 32 not connected to the first cylindrical portion 31 is further provided with: a screw 401 screwed into the screw hole 321, a fixing cap 402 whose end surface is fixedly connected to the head of the screw 401, and a return spring (not shown) whose two ends respectively contact the end surface of the second annular recess 204 and the fixing cap 402; wherein, fixed lid 402 is the open hollow cylinder structure of one end, the open end of fixed lid 402 stretches into second annular concave part 204 and contactless the terminal surface of second annular concave part 204, fixed lid 402 will including reset spring wraps up, fixed lid 402 with screw 401 forms press the portion 41, press fixed lid 402 to promote the locating lever with location portion 421 breaks away from, drives first terminal surface tooth with the separation of second terminal surface tooth to rotate forearm board 2 is in order to change rotary joint's the angle of opening, and then adjusts elbow joint's movable angle.
In another technical solution, as shown in fig. 5, an annular notch (not shown in the figure) penetrating through the first space is further provided inside the first sleeve 101, a diameter of the annular notch is smaller than an outer diameter of the first sleeve 101 and slightly larger than a maximum width of the second cylindrical portion 32 in the radial direction, wherein a position of the positioning rod is set as: when the locating lever is located when annular breach, first terminal surface tooth with second terminal surface tooth breaks away from and no longer meshes, makes the locating lever can rotate at annular breach through setting for of annular breach to make and go up arm plate 1 and preceding arm plate 2 homoenergetic and rotate along rotation axis 3, further make things convenient for elbow joint's activity.
In another technical scheme, the length of the upper arm plate 1 is 8-10 cm, the length of the forearm plate 2 is 4-7 cm, and the length of the sliding sheet 22 is 8-10 cm, so that the upper arm rear side plaster splint 51 and the forearm rear side plaster splint 52 can be conveniently and fixedly mounted.
In another technical scheme, the upper arm plate 1, the front arm plate 2 and the sliding sheet 22 are made of metal materials and are firm and durable.
In another technical solution, as shown in fig. 7, the sliding groove 21 is formed by two L-shaped metal plates 201 fixed to the front arm plate 2 at the plate surface far from the rear side of the front arm, and the inner right angles of the two L-shaped metal plates 201 are opposite to each other and form a channel for limiting the sliding piece 22 therein, so that the sliding piece 22 can slide along the length direction of the front arm.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (6)
1. A gypsum board, comprising:
plaster splints including upper arm posterior plaster splints and forearm posterior plaster splints;
a rotary joint including an upper arm plate to which a rear side plaster splint for an upper arm is fixed, a forearm plate slidably connected to the rear side plaster splint for a forearm, a rotary shaft to rotatably connect the upper arm plate and the forearm plate, and a pressing mechanism to lock and rotate the forearm plate and the upper arm plate; pressing means sets up on the rotation axis, pressing means includes pressing splenium, rotation stopping portion and spacing portion, the upper arm plate is equipped with accomodate the location portion of rotation stopping portion, the front arm plate be equipped with spacing portion matched with interlock portion, press the splenium to set up to: when the rotation stopping part is separated from the positioning part, the limiting part is separated from the occlusion part;
the front arm plate is provided with a sliding groove on one side plate which is far away from the rotating shaft and is not attached to the front arm, a sliding sheet is arranged in the sliding groove, the length of the sliding sheet is larger than that of the sliding groove, and one end of the sliding sheet is connected with the front arm rear side plaster clamping plate in a clamping manner, so that the front arm rear side plaster clamping plate can move along the length direction of the front arm along with the sliding sheet, and the front arm rear side plaster clamping plate is connected with the front arm plate in a sliding manner;
sleeves are arranged at the other end of the upper arm plate and one end of the front arm plate, and spaces for the rotating shafts to penetrate through are formed in the sleeves;
the rotating shaft comprises a first cylindrical part and a second cylindrical part which are coaxial, the diameter of the first cylindrical part is larger than that of the second cylindrical part, the lower end face of the first cylindrical part is provided with first end face teeth and forms the limiting part, the middle part of the second cylindrical part is provided with a pair of positioning rods along the radial direction and forms the rotation stopping part, and one end, which is not connected with the first cylindrical part, of the second cylindrical part is provided with a threaded hole along the axial direction;
the other end of the upper arm plate is provided with a first sleeve, and the first sleeve is axially provided with a first space for the second cylindrical part to pass through and form the positioning part;
a second sleeve and a third sleeve which are coaxial are arranged at one end of the front arm plate, the second sleeve is recessed towards the direction of the third sleeve along the axial direction to form a first annular concave portion, second end face teeth meshed with the first end face teeth are arranged on the upper surface of the first annular concave portion to form an engagement portion, a second space for the second cylindrical portion to penetrate through is arranged in the first annular concave portion along the axial direction, the second space is communicated with the first space, and the third sleeve is recessed towards the direction of the second sleeve along the axial direction to form a second annular concave portion;
the second cylinder portion is not still equipped with the one end that first cylinder portion is connected: the screw is screwed in the threaded hole, the end face of the screw is fixedly connected with the head of the screw, and the two ends of the return spring are respectively abutted against the end face of the second annular concave part and the fixed cover; the fixing cover is of a hollow cylinder structure with one open end, the open end of the fixing cover extends into the second annular concave part and does not contact with the end face of the second annular concave part, the fixing cover wraps the reset spring, and the fixing cover and the screw form the pressing part.
2. The cast tray of claim 1, further comprising a bandage fixedly connecting the upper arm posterior gypsum splint to the upper arm and fixedly connecting the forearm posterior gypsum splint to the forearm.
3. The plaster tray of claim 1, wherein the first sleeve further defines an annular notch therein communicating with the first space, the annular notch having a diameter smaller than the outer diameter of the first sleeve and slightly larger than the maximum width of the second cylindrical portion in the radial direction, and wherein the positioning rod is positioned such that: when the positioning rod is positioned in the annular notch, the first end face teeth are separated from the second end face teeth and are not meshed any more.
4. The plaster tray of claim 1, wherein the upper arm plate has a length of 8 to 10cm, the front arm plate has a length of 4 to 7cm, and the slider has a length of 8 to 10cm.
5. The plaster tray of claim 1, wherein the upper arm plate, the front arm plate and the sliding sheet are made of a metal material.
6. The plaster tray of claim 1, wherein the sliding groove is formed by two L-shaped metal plates fixed oppositely on the plate surface of the forearm plate far away from the rear side of the forearm, the inner right angles of the two L-shaped metal plates are opposite and form a channel for limiting the sliding sheet to slide along the length direction of the forearm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710534407.6A CN107361898B (en) | 2017-07-03 | 2017-07-03 | Plaster support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710534407.6A CN107361898B (en) | 2017-07-03 | 2017-07-03 | Plaster support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107361898A CN107361898A (en) | 2017-11-21 |
| CN107361898B true CN107361898B (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710534407.6A Active CN107361898B (en) | 2017-07-03 | 2017-07-03 | Plaster support |
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| CN (1) | CN107361898B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108309537B (en) * | 2018-03-29 | 2023-07-21 | 北京大学第三医院 | Shoulder joint brace and manufacturing method thereof |
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