Medical four-limb wound external fixing sleeve

Abstract

The application relates to the technical field of medical devices, and discloses a medical external fixing sleeve for limb trauma, which comprises a sleeve body, a vertical groove is arranged at the bottom of the sleeve body, a pressing block is slidably connected in the vertical groove, a first spring is arranged between the pressing block and the vertical groove, the bottom of the pressing block is arc-shaped, a side groove is arranged on the sleeve body, a first material roller is rotatably connected in the side groove, a first torsion spring is arranged between the first material roller and the side groove, a bearing belt is wound around the first material roller and fixedly connected to the first material roller, a pulling mechanism for pulling the bearing belt and a squeezing mechanism for squeezing the pressing block are further arranged. The scheme mainly solves the problem that the existing fixing device may cause secondary injury to the limbs during use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a medical four-limb trauma external fixing sleeve. BACKGROUND

[0002] At present, in the process of treating limb trauma of orthopedic trauma patients, the trauma site of the patient needs to be bandaged. In order to avoid the patient's random movement after fracture, the injured part needs to be fixed to reduce the pain of the wounded and the damage to the surrounding tissue. The existing fixing tool is mostly of a fixed type and cannot be adjusted, so multiple types of fixing tools are needed for different patients, which not only occupies too much space, but also increases the cost.

[0003] In order to solve the above problems, a kind of orthopedic limb trauma first-aid fixing device is disclosed in Chinese patent CN211325959U, which includes a support seat, two pressure seats are arranged above the support seat, the top of the support seat and the bottom of the two pressure seats are both arc-shaped structures and are bonded with arc-shaped air cushions, a positioning slot is formed in one side of the bottom of the pressure seat, a positioning rod rotatingly installed on the top of the support seat is slidingly arranged in the positioning slot, two insertion holes are formed in one side of the top of the support seat, a vertical pipe is fixedly installed on the other side of the bottom of the pressure seat, the bottom end of the vertical pipe extends into the corresponding insertion hole, a connecting rod is arranged in the vertical pipe, and a puller is fixedly installed on the top end of the connecting rod and extends above the corresponding pressure seat. The patent can tightly fix patients with different limb thicknesses, thereby reducing the number of different fixing tools, reducing the occupied space on one hand and reducing the cost on the other hand.

[0004] The above-mentioned patent has the following problems during actual use: the patient extends the limb between the two arc-shaped air cushions, which is relatively laborious for some patients with inconvenient limb movement; and the patient may be caused secondary injury during limb movement. SUMMARY

[0005] The present application aims to provide a medical four-limb trauma external fixing sleeve to solve the problem that the existing fixing device may cause secondary injury to the limb during use.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical solution: a medical four-limb trauma external fixing sleeve, including a sleeve body, a vertical slot is arranged at the bottom of the sleeve body, a pressing block is slidingly connected in the vertical slot, a first spring is arranged between the pressing block and the vertical slot, the bottom of the pressing block is arc-shaped, a side slot is arranged on the sleeve body, a first material roller is rotatably connected in the side slot, a first torsion spring is arranged between the first material roller and the side slot, a load-bearing belt is wound around the first material roller and fixedly connected thereto, a pulling mechanism for pulling the load-bearing belt and a pressing mechanism for pressing the pressing block are further included.

[0007] The principle and advantages of the scheme are: the limbs are located between the pressing block and the bearing belt, the bearing belt is pulled straight by pulling the pulling mechanism, the bearing belt is driven downward by extrusion to resist the limbs, that is, the limbs are fixed by the pressing block and the bearing belt; compared with the prior art, the bearing belt can pass through the bottom of the limbs, the injured limbs of the patient do not need to move much, or even do not need to move, so that the secondary injury of the injured limbs of the patient can be effectively avoided.

[0008] Further, the pulling mechanism comprises a side block fixedly connected with the sleeve body, a cylindrical block rotationally connected with the side block, and the side block and the side groove are respectively located on both sides of the sleeve body; one end of the bearing belt away from the first material roller is detachably connected with the cylindrical block; and the pulling mechanism further comprises a positioning portion for positioning the cylindrical block.

[0009] Through the above setting, the cylindrical block is rotated, more bearing belts are wound on the cylindrical block, the bearing belts drive the first material roller to rotate, more bearing belts are released, and the first torsional spring is deformed; the cylindrical block is continuously rotated, the bearing belts are straightened and resist the bottom of the limbs, the cylindrical block is positioned by the positioning portion, and the positioning of the bearing belts is realized.

[0010] Further, the positioning portion comprises a gear fixedly connected with the cylindrical block, a transverse groove opened in the side block, and a vertical plate fixedly connected with the side block, a rack is slidably connected in the transverse groove, the rack is engaged with the gear, a first wedge is arranged on the rack, the first wedge is transversely slidably connected with the vertical plate, and a limiting groove is arranged on the side wall of the first wedge; an auxiliary block is arranged on the vertical plate, a second wedge for being extruded by the first wedge is vertically slidably connected on the auxiliary block, a second spring is arranged between the second wedge and the auxiliary block, and the second wedge is slidably matched with the limiting groove.

[0011] Through the above setting, the cylindrical block is rotated, more bearing belts are wound on the cylindrical block, the bearing belts drive the first material roller to rotate, more bearing belts are released, and the first torsional spring is deformed; during rotation of the cylindrical block, the cylindrical block drives the gear to rotate synchronously, the gear is engaged with the rack to drive the rack to move leftward, the rack extrudes the second wedge by driving the first wedge, the second wedge moves upward, and the second spring is stretched; the first wedge continues to move, so that the second wedge abuts against the side wall of the first wedge; the first wedge continues to move, so that the second wedge is opposite to the limiting groove, and the second wedge slides downward into the limiting groove under the action of the second spring, so as to realize the positioning of the first wedge, and then the cylindrical block is positioned by the rack and the gear, that is, the positioning of the bearing belts is realized.

[0012] Further, a gong is arranged on the auxiliary block, and a striking block for striking the gong is arranged on the second wedge, and the striking block abuts against the gong.

[0013] Through the above setting, during the upward movement of the second wedge, the second wedge drives the impact block to move upward, so that the impact block is away from the gong; during the downward movement of the second wedge, the second wedge drives the impact block to move downward, so that the impact block hits the gong to produce sound, thereby reminding medical staff of the positioning of the carrying belt, and the carrying belt is straightened and abuts against the bottom of the limb; the information is transmitted to the medical staff through the sound, so that the medical staff do not need to keep looking, and the medical staff can do other rescue work, thereby saving more valuable time for rescue.

[0014] Further, the extrusion mechanism comprises an adjusting cylinder, a supporting plate fixed to the side wall of the sleeve body, an inner chamber provided in the sleeve body, a second material roller rotatably connected with the side groove, and the adjusting cylinder is detachably connected with the cylinder block; the supporting plate is provided on the same side of the side block, and the supporting plate is provided with a through hole, and the adjusting cylinder can rotate in the through hole and move along the length direction of the cylinder block; the inner chamber extends to both sides of the sleeve body, and the inner chamber is communicated with the side groove; a second torsional spring is arranged between the second material roller and the side groove, the second material roller is wound with and fixedly connected with an extrusion belt, and the end of the extrusion belt away from the second material roller passes through the side groove and the inner chamber and is fixedly connected with the adjusting cylinder; the length of the extrusion belt is greater than the length of the carrying belt, the vertical groove is communicated with the inner chamber, and the extrusion belt abuts against the top of the vertical block.

[0015] Through the above setting, after the positioning of the carrying belt is completed, the adjusting cylinder is driven to move away from the cylinder block, so that the two are separated; the adjusting cylinder is rotated, so that more extrusion belts are wound on the adjusting cylinder, the second material roller is driven to rotate by the extrusion belt, so that more extrusion belts are released, and the second torsional spring is deformed; when the use amount of the extrusion belt is completed, the adjusting cylinder is driven to move close to the cylinder block, so that the two are connected, thereby realizing the positioning of the adjusting cylinder and the positioning of the extrusion belt.

[0016] During the winding of more extrusion belts on the adjusting cylinder, the extrusion belt is gradually straightened, so that the extrusion belt extrudes the pressing block to move downward, and the first spring is compressed; the pressing block continues to move downward, so that the pressing block abuts against the limb, that is, the fixing of the limb is realized by the pressing block and the carrying belt; and the bottom of the pressing block is arc-shaped, so that the bottom of the pressing block is more fully in contact with the limb, and the limiting effect is better.

[0017] Further, the cylinder block is provided with a special-shaped groove, and the adjusting cylinder is provided with a special-shaped block, and the special-shaped block and the special-shaped groove are in sliding fit.

[0018] Through the above setting, when the adjusting cylinder moves away from the cylinder block, the special-shaped block moves out of the special-shaped groove, so that the two are separated; when the adjusting cylinder moves close to the cylinder block, the special-shaped block slides into the special-shaped groove, so that the two are connected.

[0019] Further, the bottom of the pressing block is provided with a bottom groove on both sides; the sidewall of the pressing block is provided with a wall groove on both sides, the wall groove is communicated with the vertical groove and the bottom groove, a wall block is slidably connected in the wall groove, the wall block is provided with a clamping block, the clamping block is located in the bottom groove, and the clamping block can move horizontally and vertically in the bottom groove; the inner wall of the vertical groove is provided with an inclined groove on both sides, the distance between the two inclined grooves gradually decreases from top to bottom, and the end of the wall block away from the clamping block is slidably connected with the inclined groove.

[0020] Through the above arrangement, during the downward movement of the pressing block, the pressing block drives the wall block to move along the path of the inclined groove, so that the wall block moves horizontally along the path of the wall groove, that is, the two wall blocks are close to each other, and then the two clamping blocks are also close to each other; since the bottom of the two pressing blocks is arc-shaped, the bottom of the clamping block is lower than the bottom of the pressing block, so that the two clamping blocks can clamp the limbs, and the fixing effect on the limbs is further enhanced.

[0021] In addition, by adjusting the cylinder to control the use amount of the extrusion belt pulled out, the height of the downward movement of the pressing block can be adjusted, and the distance between the two clamping blocks can also be adaptively adjusted with the height of the downward movement of the pressing block, so that limbs of different sizes can be fixed, and the practicability is high.

[0022] Further, the bottom of the pressing block is provided with a bottom groove on both sides; the sidewall of the pressing block is provided with a wall groove on both sides, the wall groove is communicated with the vertical groove and the bottom groove, a wall block is slidably connected in the wall groove, the wall block is provided with a clamping block, the clamping block is located in the bottom groove, and the clamping block can move horizontally and vertically in the bottom groove; the inner wall of the vertical groove is provided with an inclined groove on both sides, the distance between the two inclined grooves gradually decreases from top to bottom, and the end of the wall block away from the clamping block is slidably connected with the inclined groove.

[0023] Through the above arrangement, during the downward movement of the pressing block, the pressing block drives the wall block to move along the path of the inclined groove, so that the wall block moves horizontally along the path of the wall groove, that is, the two wall blocks are close to each other, and then the two clamping blocks are also close to each other; since the bottom of the two pressing blocks is arc-shaped, the bottom of the clamping block is lower than the bottom of the pressing block, so that the two clamping blocks can clamp the limbs, and the fixing effect on the limbs is further enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structure schematic view of an embodiment of the medical four-limb trauma external fixing sleeve of the application;

[0025] Figure 2 It is a structure schematic view of an embodiment of the medical four-limb trauma external fixing sleeve of the application; Figure 1 It is a partial sectional view in the direction of view;

[0026] Figure 3 It is a partial sectional view in the direction of view; Figure 1 It is a partial sectional view in the direction of view;

[0027] Figure 4 It is a partial sectional view in the direction of view; Figure 3 It is an enlarged view of A in FIG. 6. DETAILED DESCRIPTION

[0028] The following will be further described in detail through specific embodiments:

[0029] The reference signs in the drawings of the specification include: a sleeve body 10, a vertical groove 11, a pressing block 12, a first spring 13, a side groove 14, a first material roller 15, a bearing belt 16, a side block 20, a cylindrical block 21, a gear 30, a transverse groove 31, a vertical plate 32, a rack 33, a first wedge block 34, a limiting groove 35, an auxiliary block 36, a second wedge block 37, a second spring 38, a gong 40, a striking block 41, an adjusting cylinder 50, a support plate 51, an inner chamber 52, a second material roller 53, a special-shaped block 54, an extrusion belt 55, a bottom groove 60, a wall groove 61, a clamping block 62, an inclined groove 63, an elastic layer 70, a limb 80.

[0030] Embodiment

[0031] Basically as shown in the accompanying Figure 1 , accompanying Figure 2 , accompanying Figure 3 , accompanying Figure 4 : a medical four-limb trauma external fixing sleeve, comprising a sleeve body 10, the bottom of the sleeve body 10 is provided with a vertical groove 11, the vertical groove 11 is slidably connected with a pressing block 12, the pressing block 12 and the vertical groove 11 are fixedly connected with a first spring 13, the top of the pressing block 12 and the bottom of the pressing block 12 are arc-shaped; the right side of the sleeve body 10 is provided with a side groove 14, the side groove 14 is rotatably connected with a first material roller 15, the first material roller 15 and the side groove 14 are fixedly connected with a first torsion spring, and the first material roller 15 is wound with and fixedly connected with a bearing belt 16.

[0032] Further comprising a pulling mechanism for pulling the bearing belt 16, the pulling mechanism comprising a side block 20 fixedly connected with the sleeve body 10 and a cylindrical block 21 rotatably connected with the side block 20, the side block 20 and the side groove 14 are respectively located on the left and right sides of the sleeve body 10, that is, the side block 20 is located on the left side of the sleeve body 10; one end of the bearing belt 16 away from the first material roller 15 is detachably connected with the cylindrical block 21, in this embodiment, a prickly magic tape is fixedly connected to one end of the bearing belt 16 away from the first material roller 15, a velvet magic tape is fixedly connected to the side wall of the cylindrical block 21, and the prickly magic tape can be connected with the velvet magic tape to realize the connection between the bearing belt 16 and the cylindrical block 21.

[0033] The positioning part for positioning the cylindrical block 21 comprises a gear 30 fixedly connected with the cylindrical block 21, a transverse slot 31 formed on the side block 20, a vertical plate 32 fixedly connected with the side block 20, a rack 33 slidingly connected in the transverse slot 31, the rack 33 being engaged with the gear 30, a first wedge block 34 fixedly connected on the rack 33, the first wedge block 34 being transversely slidingly connected with the vertical plate 32, a limiting slot 35 being formed on the side wall of the first wedge block 34; an auxiliary block 36 is fixedly connected on the vertical plate 32, a second wedge block 37 slidingly connected vertically on the auxiliary block 36 for being pressed by the first wedge block 34, a second spring 38 fixedly connected between the second wedge block 37 and the auxiliary block 36, the second wedge block 37 being slidingly matched with the limiting slot 35. A gong 40 is fixedly connected on the auxiliary block 36, a striking block 41 fixedly connected on the second wedge block 37 for striking the gong 40, the striking block 41 abutting against the gong 40.

[0034] The extrusion mechanism for extruding the pressing block 12 comprises an adjusting cylinder 50, a supporting plate 51 fixedly connected with the side wall of the sleeve body 10, an inner chamber 52 formed in the inner portion of the sleeve body 10, a second material roller 53 rotatably connected with the side slot 14, the adjusting cylinder 50 being detachably connected with the cylindrical block 21, in the embodiment, a special-shaped slot is formed on the cylindrical block 21, a special-shaped block 54 is fixedly connected on the adjusting cylinder 50, the special-shaped block 54 being slidingly matched with the special-shaped slot. The supporting plate 51 is arranged on the same side with the side block 20, i.e. the supporting plate 51 is arranged on the left side of the sleeve body 10, a through hole is formed on the supporting plate 51, the adjusting cylinder 50 can rotate in the through hole and move along the length direction of the cylindrical block 21; the inner chamber 52 extends to both sides of the sleeve body 10, the inner chamber 52 is communicated with the side slot 14, the pressing block 12 can move vertically in the inner chamber 52; a second torsion spring is fixedly connected between the second material roller 53 and the side slot 14, an extrusion belt 55 is wound and fixedly connected on the second material roller 53, one end of the extrusion belt 55 away from the sliding block passes through the side slot 14, the inner chamber 52 and is fixedly connected on the adjusting cylinder 50; the length of the extrusion belt 55 is greater than the length of the bearing belt 16, the vertical slot 11 is communicated with the inner chamber 52, the extrusion belt 55 abuts against the top of the vertical block.

[0035] Bottom slots 60 are formed on both sides of the bottom of the pressing block 12; wall slots 61 are transversely formed on both sides of the side wall of the pressing block 12, the wall slots 61 are communicated with the vertical slot 11 and the bottom slots 60, wall blocks are slidingly connected in the wall slots 61, clamping blocks 62 are fixedly connected on the wall blocks, the clamping blocks 62 are located in the bottom slots 60, the clamping blocks 62 can move transversely and vertically in the bottom slots 60; inclined slots 63 are formed on both sides of the inner wall of the vertical slot 11, the interval between the two inclined slots 63 gradually decreases from top to bottom, one end of the wall block away from the clamping block 62 is slidingly connected with the inclined slots 63.

[0036] The specific implementation process is as follows:

[0037] In use, the sleeve 10 is placed on the wound of the patient's limb 80 so that the limb 80 is below the pressing block 12; then the load belt 16 is pulled around the bottom of the limb 80, the magic sticker with the velvet magic sticker is connected, so that the load belt 16 is connected with the cylindrical block 21, and thus the limb 80 is located in the space surrounded by the sleeve 10 and the load belt 16.

[0038] The cylindrical block 21 is rotated, so that more load belts 16 are wound on the cylindrical block 21, the load belt 16 drives the first material roller 15 to rotate, so that more load belts 16 are released, and the first torsional spring is deformed; during the rotation of the cylindrical block 21, the cylindrical block 21 drives the gear 30 to rotate synchronously, the gear 30 drives the rack 33 to move leftward by engaging with the rack 33, the rack 33 drives the first wedge block 34 to press the second wedge block 37, so that the second wedge block 37 moves upward and the second spring 38 is stretched; the first wedge block 34 continues to move, so that the second wedge block 37 abuts against the side wall of the first wedge block 34; the first wedge block 34 continues to move, so that the second wedge block 37 is opposite to the limiting groove 35, and the second wedge block 37 slides downward into the limiting groove 35 under the action of the second spring 38, so as to realize the positioning of the first wedge block 34, and then the positioning of the cylindrical block 21 is realized through the rack 33 and the gear 30, that is, the positioning of the load belt 16 is realized, so that the load belt 16 is taut and abuts against the bottom of the limb 80.

[0039] During the upward movement of the second wedge block 37, the second wedge block 37 drives the impact block 41 to move upward, so that the impact block 41 is away from the gong 40; during the downward movement of the second wedge block 37, the second wedge block 37 drives the impact block 41 to move downward, so that the impact block 41 impacts the gong 40 to produce sound, so as to remind medical staff of the positioning of the load belt 16, and the load belt 16 is taut and abuts against the bottom of the limb 80; the information is transmitted to the medical staff through the sound, so that the medical staff does not need to be constantly observed, and the medical staff can do other rescue work, thereby saving more valuable time for rescue.

[0040] During the rotation of the cylindrical block 21, the cylindrical block 21 drives the adjusting cylinder 50 to rotate synchronously, so that part of the extrusion belt 55 is wound on the adjusting cylinder 50, but since the length of the extrusion belt 55 is greater than the length of the load belt 16, the extrusion belt 55 is still not in the taut state.

[0041] After the positioning of the bearing belt 16 is completed, the adjusting cylinder 50 is driven to move away from the cylinder block 21, so that the special-shaped block 54 is moved out of the special-shaped groove; the adjusting cylinder 50 is rotated, so that more extrusion belts 55 are wound on the adjusting cylinder 50, the extrusion belts 55 drive the second material roller 53 to rotate, so that more extrusion belts 55 are released, and the second torsional spring is deformed; when the use amount of the extrusion belts 55 pulled out is completed, the adjusting cylinder 50 is driven to move close to the cylinder block 21, so that the special-shaped block 54 slides into the special-shaped groove, so as to realize the positioning of the adjusting cylinder 50, and further realize the positioning of the extrusion belts 55.

[0042] During the winding of more extrusion belts 55 on the adjusting cylinder 50, the extrusion belts 55 are gradually straightened, so that the extrusion belts 55 extrude the pressing block 12 to move downward, and the first spring 13 is compressed; the pressing block 12 continues to move downward, so that the pressing block 12 abuts against the limb 80, that is, the fixing of the limb 80 is realized through the pressing block 12 and the bearing belt 16; and the bottom of the pressing block 12 is arc-shaped, so that the bottom of the pressing block 12 is more fully in contact with the limb 80, and the limiting effect is better.

[0043] During the downward movement of the pressing block 12, the pressing block 12 drives the wall block to move along the path of the inclined groove 63, so that the wall block moves transversely along the path of the wall groove 61, that is, the two wall blocks are close to each other, and further, the two clamping blocks 62 are also close to each other, so that the two clamping blocks 62 abut against the limb 80 respectively, so as to clamp the limb 80 by the two clamping blocks, and further strengthen the fixing effect of the limb 80.

[0044] In addition, the use amount of the extrusion belts 55 pulled out is controlled by the adjusting cylinder 50 alone, so as to adjust the height of the downward movement of the pressing block 12, and the distance between the two clamping blocks 62 is also adaptively adjusted according to the height of the downward movement of the pressing block 12, so as to fix the limbs 80 of different sizes, and the practicability is strong.

[0045] In the embodiment, the bottom of the pressing block 12 is fixedly connected with an elastic layer 70, the elastic layer 70 is a rubber layer, and the elastic layer 70 is arc-shaped; the elastic layer 70 is used to replace the pressing block 12 to directly contact the limb 80, so that the comfort is stronger.

[0046] The above is only an embodiment of the present application, and the specific technical solutions and / or common knowledge of the scheme are not described in detail. It should be noted that for those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, which will not affect the effect and practicability of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific embodiments in the specification can be used to explain the content of the claims.

Claims

1. A medical external fixation sleeve for limb trauma, characterized in that: The system includes a sleeve with a vertical groove at its bottom. A pressure block is slidably connected within the vertical groove, and a first spring is provided between the pressure block and the vertical groove. The bottom of the pressure block is arc-shaped. The sleeve has a side groove, with a first material roller rotatably connected within it. A first torsion spring is provided between the first material roller and the side groove. A carrying belt is wound and fixedly attached to the first material roller. The system also includes a pulling mechanism for pulling the carrying belt and a pressing mechanism for pressing the pressure block. The pulling mechanism includes a side block fixedly attached to the sleeve and a cylindrical block rotatably connected to the side block. The side block and the side groove are located on opposite sides of the sleeve. The end of the carrying belt away from the first material roller is detachably connected to the cylindrical block. The system also includes a positioning part for positioning the cylindrical block. The positioning part includes a gear fixedly attached to the cylindrical block. The system comprises: a transverse groove on the side block; a vertical plate fixedly connected to the side block; a rack slidably connected within the transverse groove, meshing with a gear; a first wedge on the rack, slidably connected to the vertical plate; a limiting groove on the side wall of the first wedge; an auxiliary block on the vertical plate, with a second wedge vertically slidably connected to it for being pressed by the first wedge; a second spring between the second wedge and the auxiliary block; and a slidably engaged with the limiting groove. A gong is mounted on the auxiliary block, and an impact block on the second wedge for striking the gong. The pressing mechanism includes an adjusting cylinder, a support plate fixedly connected to the side wall of the sleeve, an inner chamber inside the sleeve, and a second material roller rotatably connected to the side groove. The cylinder and cylindrical block are detachably connected; the support plate and side block are set on the same side, and the support plate has a through hole, allowing the adjusting cylinder to rotate within the through hole and move along the length of the cylindrical block; the inner chamber extends to both sides of the sleeve and communicates with the side groove; a second torsion spring is provided between the second material roller and the side groove, and an extrusion belt is wound and fixed on the second material roller, with the far end of the extrusion belt passing through the side groove, wound and fixed on the adjusting cylinder in the inner chamber; the length of the extrusion belt is greater than the length of the bearing belt, the vertical groove communicates with the inner chamber, and the extrusion belt abuts against the top of the vertical block; the cylindrical block has a shaped groove, and the adjusting cylinder has a shaped block, with the shaped block slidingly engaging with the shaped groove; bottom grooves are provided on both sides of the bottom of the pressure block; wall grooves are provided on both sides of the side wall of the pressure block. The groove, wall groove, vertical groove, and bottom groove are connected. A wall block is slidably connected in the wall groove, and a clamping block is provided on the wall block. The clamping block is located in the bottom groove and can move horizontally and vertically in the bottom groove. There are inclined grooves on both sides of the inner wall of the vertical groove. The distance between the two inclined grooves gradually decreases from top to bottom. The end of the wall block away from the clamping block is slidably connected to the inclined groove. The cylindrical block rotates, so that the bearing belt is straightened and positioned, and then drives the adjusting cylinder away from the cylindrical block. The irregular block moves out of the irregular groove. The adjusting cylinder continues to rotate, so that the extrusion belt is straightened. The straightened extrusion belt squeezes the pressure block to move downward. The pressure block drives the clamping blocks to move closer to each other and clamp the limbs. When the extrusion belt is pulled out to the required amount, the irregular block slides into the irregular groove to achieve the positioning of the extrusion belt.

2. The medical external fixation sleeve for limb trauma according to claim 1, characterized in that: The bottom of the briquette has an elastic layer.

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