CN114366449A

CN114366449A - Inflatable dressing and fixing device for trauma orthopedics

Info

Publication number: CN114366449A
Application number: CN202110796893.5A
Authority: CN
Inventors: 党海峰; 樊俊俊; 刘蕊; 邹继伟; 王陶然; 薛宝宝; 程建岗; 宋晨
Original assignee: Air Force Medical University of PLA
Current assignee: Air Force Medical University of PLA
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2022-04-19

Abstract

The invention provides an inflatable dressing and fixing device for wound orthopedics, which comprises a base; the front supporting bracket is erected on the front side of the upper end of the base through an inverted L-shaped bracket, the rear supporting bracket is arranged on the rear side of the upper end of the base in a sliding manner through a supporting rod, and the supporting rod is fixedly connected with the base through a first sliding positioning assembly; the binding device comprises an annular binding ring, a bandage winding device arranged on the inner wall of the annular binding ring and a binding ring driving mechanism arranged at the lower end of the outer wall of the annular binding ring, the bottom end of the binding ring driving mechanism is arranged on the base in a sliding mode through a first sliding block, and the annular binding ring can slide back and forth on the transverse plate of the inverted L-shaped support and the periphery of the front support holder in a non-contact mode; and the shearing device is fixedly arranged at the lower end of the bandage winding device. The invention effectively avoids the possible secondary damage to the affected limb and relieves the pain of the patient; the operation standardization is strong, convenient and fast to operate, labor is saved, and the binding efficiency and the binding quality are greatly improved.

Description

Inflatable dressing and fixing device for trauma orthopedics

Technical Field

The invention relates to the technical field of medical auxiliary instruments, in particular to an inflatable dressing and fixing device for trauma orthopedics.

Background

The traumatic orthopaedics is a branch of orthopaedics and is very common in orthopaedics clinic, and doctors generally perform reduction internal fixation on fracture parts and then perform dressing external fixation on wounds so as to facilitate the future recovery of the wounds. The dressing is one of important measures for emergency treatment of trauma sites, and the dressing can be timely and correctly used for achieving the purposes of compression hemostasis, infection reduction, wound protection, pain reduction, dressing and splint fixation and the like; incorrect bandaging can lead to increased bleeding, increased infection, new injuries, sequelae, and other adverse consequences.

At present, when the limb fracture wound is bandaged and fixed, the wounded limb needs to be lifted and then bandaged and changed with dressing, and the existing bandaging and fixing device has a plurality of problems or defects in operation.

Firstly, manual wound dressing takes long time, operation normative is poor, the wound is easy to be touched by mistake, secondary injury to the patient is easy to be caused, and dressing efficiency and dressing quality are reduced;

secondly, when the limbs are fractured, two sides of the wound of the limbs are often required to be supported, and then the wound is wound and bound by using a ring-shaped binding device, however, the fractured and injured limbs of the patient need to be moved and extend into the binding device, so that secondary injury of the limbs of the patient is easily caused, and more pain is brought to the patient;

thirdly, the hand-held cutter is needed to be used for shearing after the bandage winding is finished, so that the operation is very inconvenient, and time and labor are wasted.

In view of the foregoing, there is a need for an inflatable dressing and fixation device for traumatic orthopedics that overcomes the above-mentioned problems.

Disclosure of Invention

The object of the present invention is to provide an inflatable dressing and fixation device for trauma orthopedics which overcomes the above problems.

In order to achieve the purpose, the invention adopts the technical scheme that: fixing device is wrapped with inflatable to wound orthopedics includes:

a base;

the supporting and fixing device comprises a front supporting bracket and a rear supporting bracket, the front supporting bracket is erected on the front side of the upper end of the base through an inverted L-shaped bracket, the rear supporting bracket is arranged on the rear side of the upper end of the base in a sliding manner through a supporting rod, and the supporting rod is fixedly connected with the base through a first sliding and positioning assembly;

the binding device comprises an annular binding ring, a bandage winding device arranged on the inner wall of the annular binding ring and a binding ring driving mechanism arranged at the lower end of the outer wall of the annular binding ring, wherein a first sliding block is arranged at the bottom end of the binding ring driving mechanism, the first sliding block is arranged on the upper surface of the base in a sliding manner and is provided with a first sliding chute, the length direction of the first sliding chute is consistent with that of the front supporting bracket, the annular binding ring can slide back and forth on the transverse plate of the inverted L-shaped bracket and the periphery of the front supporting bracket without contact, and a second sliding positioning assembly is arranged between the first sliding block and the base;

and the shearing device is fixedly arranged at the lower end of the bandage winding device.

The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.

Furthermore, the wrapping ring driving mechanism comprises a first mounting box fixed at the upper end of the first sliding block, a worm rotatably connected in the first mounting box and teeth uniformly arranged on the outer wall of the annular wrapping ring, the teeth are meshed with the worm, and one end of the worm extends out of the side wall of the first mounting box and is fixedly connected with the motor;

annular second chutes are respectively formed in two sides of the annular bundling ring, a third circular chute is formed in the inner communicated section of the second chute, inverted L-shaped connecting rods are arranged on two sides of the first mounting box, and cross rods of the inverted L-shaped connecting rods extend into the second chute and are fixedly connected with sliding balls in the third chute in a sliding mode.

Furthermore, the bandage winding device comprises a second mounting box fixed on the inner wall of the annular bundling ring and a bandage winding cylinder rotatably mounted at the upper end inside the second mounting box, the opening of the second mounting box faces downwards, and the shearing device is fixed in the second mounting box arranged at the lower end of the bandage winding cylinder;

and a box cover is arranged at the upper end of one side wall of the second mounting box.

Further, the shearing device comprises a fourth sliding groove formed in one inner wall of the second mounting box, two fourth sliding blocks arranged in the fourth sliding groove in a sliding manner, a cutting blade respectively fixed to one end, close to the opening, of each fourth sliding block, and a driving assembly arranged in the side wall of the second mounting box and used for driving the two fourth sliding blocks to slide in the opposite direction or in the opposite direction;

the length direction of the fourth sliding chute is perpendicular to the length direction of the bandage winding drum.

Furthermore, a cavity is formed in the side wall of the second mounting box, an elongated slot is formed in the side wall of the fourth sliding slot, which is close to the cavity, and the elongated slot communicates the cavity with the fourth sliding slot;

the driving assembly comprises an electric push rod horizontally arranged in the cavity, a connecting block fixed at the telescopic end of the electric push rod, and first connecting rods respectively hinged to two sides of one end of the electric push rod and far away from the connecting block, and the other ends of the first connecting rods are respectively hinged to the fourth sliding block.

Further, a tensioning device is arranged between the bandage winding cylinder and the shearing device;

the tensioning device includes and articulates respectively the grip block on the wall of second mounting box both sides, two the lower surface of grip block respectively through the second connecting rod with cutting blade's upper surface is articulated, the upper end of second connecting rod with the lower surface of grip block is articulated, two when cutting blade supports and leans on, two the grip block level just supports tightly each other.

Furthermore, a fifth sliding block is arranged at the lower end of the supporting rod and is arranged on the upper surface of the base in a sliding manner, and a fifth sliding groove is formed in the upper surface of the base;

the first sliding positioning assembly comprises a screw rod which is rotatably arranged in a fifth sliding groove, the fifth sliding block is arranged on the outer wall of the screw rod in a penetrating mode and in threaded connection, and one end of the screw rod penetrates out of the outer wall of the base and is fixedly connected with a first knob.

Furthermore, a sliding hole is formed in the lower end of the rear supporting support, a rack is arranged in the sliding hole in a sliding mode, the lower end of the rack is meshed with a connecting gear, the gear is rotatably connected in the groove through a shaft, and one end of the shaft penetrates through the side wall of the rear supporting support and is connected with a second knob;

and the bottom of one side of the front supporting bracket, which is close to the rear supporting bracket, is provided with a butt joint sliding hole consistent with the sliding hole.

Furthermore, the second sliding positioning component is a positioning bolt arranged on the side wall of the base in a penetrating mode, a long hole communicated with the first sliding groove is formed in the side wall of the base, and a threaded through hole matched with the positioning bolt is formed in the first sliding block.

Further, preceding support holder with the inner wall of back support holder all is equipped with arc gasbag pad, arc gasbag pad all connects through the trachea and inflates the exhaust balloon.

Compared with the prior art, the invention has the beneficial effects that:

1. the inflatable binding and fixing device for the trauma orthopedics department is characterized in that the front supporting support and the rear supporting support are respectively arranged at the two ends of the base, the binding device is arranged on the base in a sliding mode, the annular binding ring can slide back and forth on the transverse plate of the inverted L-shaped support and the periphery of the front supporting support in a non-contact mode, when the inflatable binding and fixing device is used, a limb with a fracture injury of a patient can be placed on the front supporting support and the rear supporting support, then the annular binding ring is moved to the middle of the front supporting support and the rear supporting support or the middle of the injured position of the patient, and then wound binding is carried out, so that the operation of moving the affected limb into the binding device is avoided, the secondary injury possibly suffered by the limb of the patient is effectively avoided, and the pain of the patient is greatly relieved.

2. According to the inflatable binding and fixing device for the trauma orthopedics department, the worm and the teeth are driven by the motor in the binding process, the annular binding ring can rotate around the limb wound of the patient, the wound of the patient can be effectively bound, the operation standardization is strong, the labor is saved, the time consumption is short, the secondary injury to the patient is avoided, and the binding efficiency and the binding quality are greatly improved.

3. According to the inflatable binding and fixing device for the wound orthopedics department, the shearing device is arranged, so that the bandage can be directly sheared or cut after being wound, the operation is convenient and fast, manpower and material resources are saved, and the binding efficiency is improved.

4. According to the inflatable binding and fixing device for the wound orthopedics department, the tensioning device is arranged at the upper end of the shearing device, so that the bandage can be sheared more quickly and effectively, the shearing speed is increased, and the operation effectiveness is improved.

Drawings

Fig. 1 is a schematic overall structure diagram of an inflatable dressing fixing device for trauma orthopedics provided by the invention;

FIG. 2 is a schematic cross-sectional view of the inflatable dressing fixing device for trauma orthopedics provided by the invention;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

FIG. 4 is a schematic top cross-sectional view of a shearing device in an embodiment of the invention;

FIG. 5 is a schematic sectional view of a second mounting box in the embodiment of the invention;

FIG. 6 is an enlarged schematic view at B in FIG. 2;

description of reference numerals:

1. a base; 11. a first chute; 12. a fifth chute; 13. a long hole;

2. a supporting and fixing device; 21. a front support bracket; 211. butting sliding holes; 212. an arc-shaped airbag cushion; 213. an air tube; 214. inflating and deflating the balloon; 22. a rear support bracket; 221. a slide hole; 222. a rack; 223. a gear; 224. a shaft; 225. a groove; 226. a second knob; 23. a support bar; 24. an inverted L-shaped bracket; 25. fixing belts;

3. a first slide positioning assembly; 31. a fifth slider; 32. a screw rod; 33. a first knob;

4. a wrapping device; 41. a ring-shaped bundling ring; 411. a second chute; 412. a third chute; 42. a bandage winding device; 421. a second mounting box; 4211. an opening; 4212. a cavity; 4213. a long groove; 422. a bandage winding drum; 423. a box cover; 43. a first slider;

5. a wrapping ring driving mechanism; 51. a first mounting box; 52. a worm; 53. teeth; 54. a motor; 55. an inverted L-shaped connecting rod; 56. a sliding ball;

6. a second slide positioning assembly; 61. positioning the bolt;

7. a shearing device; 71. a fourth chute; 72. a fourth slider; 73. a cutting blade; 74. an electric push rod; 75. connecting blocks; 76. a first link;

8. a tensioning device; 81. a clamping plate; 82. a second link.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 6, an inflatable dressing fixing device for trauma orthopedics comprises:

a base 1;

a supporting and fixing device 2 comprising a front supporting tray 21 and a rear supporting tray 22, wherein the front supporting tray 21 is used for supporting the far end of the injured limb, the rear supporting tray 22 is used for supporting the near end of the injured limb, and the injured part of the limb is just positioned between the front supporting tray 21 and the rear supporting tray 22; the front supporting bracket 21 is erected on the front side of the upper end of the base 1 through an inverted L-shaped bracket 24, the rear supporting bracket 22 is slidably arranged on the rear side of the upper end of the base 1 through a supporting rod 23, and the supporting rod 23 is fixedly connected with the base 1 through a first sliding positioning component 3; the rear supporting bracket 22 is arranged on the base 1 in a sliding manner, so that the distance between the front supporting bracket and the rear supporting bracket is convenient to adjust;

the binding device 4 comprises an annular binding ring 41, a bandage winding device 42 arranged on the inner wall of the annular binding ring 41 and a binding ring driving mechanism 5 arranged at the lower end of the outer wall of the annular binding ring 41, a first sliding block 43 is arranged at the bottom end of the binding ring driving mechanism 5, the first sliding block 43 is arranged on the upper surface of the base 1 in a sliding manner and is provided with a first sliding chute 11, the length direction of the first sliding chute 11 is consistent with that of the front supporting bracket 21, the annular binding ring 41 can slide back and forth on the transverse plate of the inverted L-shaped bracket 24 and the periphery of the front supporting bracket 21 without contact, and a second sliding positioning assembly 6 is arranged between the first sliding block 43 and the base 1; when in use, the injured limbs of the patient with fracture can be firstly placed on the front and rear support brackets, then the annular bundling ring 41 is moved to the middle of the front and rear support brackets or the injured position of the patient, and then wound bundling is carried out, so that the operation of moving the affected limb into the bundling device is avoided, the possible secondary injury of the limbs of the patient is effectively avoided, and the pain of the patient is greatly relieved;

shearing mechanism 7, it is fixed to be established bandage wind device 42's lower extreme is convenient for cut or cut the bandage after the bandage winding limbs finish, and convenient operation has saved manpower and materials, improves and wraps efficiency.

Preferably, the bundling ring driving mechanism 5 comprises a first mounting box 51 fixed at the upper end of the first sliding block 43, a worm 52 rotatably connected in the first mounting box 51, and teeth 53 uniformly arranged on the outer wall of the annular bundling ring 41, wherein the teeth 53 are engaged with the worm 52, and one end of the worm 52 extends out of the side wall of the first mounting box 51 and is fixedly connected with a motor 54;

annular second chutes 411 are respectively formed in two sides of the annular bundling ring 41, a third chute 412 with a circular cross section is communicated with the inside of the second chute 411, inverted-L-shaped connecting rods 55 are arranged on two sides of the first mounting box 51, and cross rods of the inverted-L-shaped connecting rods 55 extend into the second chute 411 and are fixedly connected with sliding balls 56 which are slidably arranged in the third chute 412. Through the arrangement of the second sliding groove 411, the third sliding groove 412, the inverted-L-shaped connecting rod 55 and the sliding ball 56, the annular binding ring 41 and the first mounting box 51 can be effectively fixed, and meanwhile, the rotation of the annular binding ring relative to the worm 52 is not limited, so that the winding binding is realized.

Preferably, as shown in fig. 5, the bandage winding device 42 includes a second mounting box 421 fixed on the inner wall of the annular packing ring 41, and a bandage winding cylinder 422 rotatably mounted on the upper end inside the second mounting box 421, an opening 4211 of the second mounting box 421 faces downward, and the cutting device 7 is fixed in the second mounting box 421 provided at the lower end of the bandage winding cylinder 422;

the upper end of one side wall of the second mounting box 421 is provided with a box cover 423 which corresponds to the bandage winding cylinder 422, so that the bandage winding cylinder 422 can be conveniently replaced, and the device can be continuously used; the bandage winding cylinder 422 can be fastened on the inner wall of the second mounting box 421 through an elastic piece, and is convenient to take down when being replaced.

Preferably, as shown in fig. 4 and 5, the shearing device 7 includes a fourth sliding slot 71 opened on an inner wall of the second mounting box 421, two fourth sliding blocks 72 slidably disposed in the fourth sliding slot 71, a cutting blade 73 respectively fixed to one end of the fourth sliding block 72 near the opening 4211, and a driving assembly disposed inside a side wall of the second mounting box 421 and configured to drive the two fourth sliding blocks 72 to slide toward or away from each other;

the length direction of the fourth chute 71 is perpendicular to the length direction of the bandage-winding tube 422.

Preferably, a cavity 4212 is formed in a side wall of the second mounting box 421, an elongated slot 4213 is formed in a side wall of the fourth sliding slot 71 close to the cavity 4212, and the elongated slot 4213 communicates the cavity 4212 with the fourth sliding slot 71;

the driving assembly comprises an electric push rod 74 horizontally arranged in the cavity 4212, a connecting block 75 fixed at the telescopic end of the electric push rod 74, and first connecting rods 76 respectively hinged to two sides of one end, far away from the electric push rod 74, of the connecting block 75, and the other ends of the two first connecting rods 76 are respectively hinged to the fourth sliding block 72. When the telescopic end of the electric push rod 74 completely extends out of the fixed cylinder, the two fourth sliding blocks 72 respectively abut against two of the second mounting boxes 421; when the telescopic end of the electric push rod 74 completely enters the fixed cylinder, the two fourth sliding blocks 72 are abutted against each other, and meanwhile, the cutting ends of the two cutting blades 73 are abutted against each other, so that the bandage is cut.

Preferably, a tensioning device 8 is further arranged between the bandage winding cylinder 422 and the shearing device 7, the tensioning device 8 is used for tensioning the bandage between the bandage winding cylinder 422 and the shearing device 7, and the bandage is loosened during cutting to cause ineffective cutting, so that the tensioning device 8 can make the bandage cutting process smoother and enhance the cutting effectiveness;

the tensioning device 8 comprises clamping plates 81 respectively hinged to two side walls of the second mounting box 421, the lower surfaces of the clamping plates 81 are hinged to the upper surface of the cutting blade 73 through second connecting rods 82, the upper end of each second connecting rod 82 is hinged to the lower surface of the clamping plate 81, and when the cutting blade 73 is abutted to the lower surface of the corresponding clamping plate 81, the clamping plates 81 are horizontally abutted to each other, namely when the cutting blade 73 cuts the bandage, the clamping plates 81 tension the bandage at the upper ends of the cutting blades 73, and meanwhile, one end of the bandage wound on the limb of a patient is also in a straightening device, so that one-time cutting is facilitated, and the cutting or cutting efficiency is improved.

Preferably, a fifth slide block 31 is arranged at the lower end of the support rod 23, and the fifth slide block 31 is slidably arranged on the upper surface of the base 1 and provided with a fifth slide groove 12;

the first sliding positioning assembly 3 comprises a screw rod 32 which is rotatably arranged in the fifth sliding groove 12, the fifth sliding block 31 is arranged on the outer wall of the screw rod 32 in a penetrating mode and in threaded connection, and one end of the screw rod 32 penetrates out of the outer wall of the base 1 and is fixedly connected with a first knob 33.

In this embodiment, when the limbs of the patient are wrapped and finished, the first knob 33 can be rotated to drive the screw rod 32 to rotate, the fifth slider 31 is driven to slide in the fifth sliding groove 12, the distance between the rear support 22 and the front support 21 can be adjusted, and the limbs of the patient can be fixed better.

Preferably, a sliding hole 221 is formed in the lower end of the rear supporting bracket 22, a rack 222 is slidably arranged in the sliding hole 221, the lower end of the rack 222 is engaged with a gear 223, the gear 223 is rotatably connected in a groove 225 through a shaft 224, and one end of the shaft 224 penetrates through the side wall of the rear supporting bracket 22 and is connected with a second knob 226;

the bottom of one side of the front supporting bracket 21 close to the rear supporting bracket 22 is provided with a butt sliding hole 211 consistent with the sliding hole 221.

In this embodiment, after the distance between the front and rear support brackets is adjusted by the first sliding positioning assembly 3, the gear 223 is driven to rotate by rotating the second knob 226, so as to drive the rack 222 to slide out of the slide hole 221, and further slide into the butt-joint slide hole 211 at the lower end of the front support bracket 21, thereby realizing the connection and fixation of the front and rear support brackets, improving the support performance of the front and rear support brackets, and avoiding the shaking phenomenon that may occur in the front support bracket 21.

Preferably, the second sliding positioning component 6 is a positioning bolt 61 penetrating through the side wall of the base 1, the side wall of the base 1 is provided with a long hole 13 communicating with the first sliding chute 11, and the first sliding block 43 is provided with a threaded through hole matching with the positioning bolt 61.

Preferably, preceding brace 21 with the inner wall of back brace 22 all is equipped with arc gasbag pad 212, arc gasbag pad 212 all connects through trachea 213 and fills exhaust balloon 214, and when fixed, according to patient's limbs the thickness to preceding brace 21 with back brace 22 internal diameter is adjusted, realizes the validity of support, makes the patient more comfortable simultaneously.

The two sides of the upper end of the front supporting bracket 21 and the two sides of the upper end of the rear supporting bracket 22 are respectively provided with a fixing belt 25, so that the limbs of the patient can be conveniently fixed after the binding is finished.

The present invention has been further described with reference to the examples, but the present invention is not limited to the above-described embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a fixing device is wrapped with inflatable to wound orthopedics, includes base (1), its characterized in that still includes:

the supporting and fixing device (2) comprises a front supporting support (21) and a rear supporting support (22), the front supporting support (21) is erected on the front side of the upper end of the base (1) through an inverted L-shaped support (24), the rear supporting support (22) is arranged on the rear side of the upper end of the base (1) in a sliding mode through a supporting rod (23), and the supporting rod (23) is fixedly connected with the base (1) through a first sliding positioning component (3);

the binding device (4) comprises an annular binding ring (41), a bandage winding device (42) arranged on the inner wall of the annular binding ring (41) and a binding ring driving mechanism (5) arranged at the lower end of the outer wall of the annular binding ring (41), a first sliding block (43) is arranged at the bottom end of the binding ring driving mechanism (5), the first sliding block (43) is arranged on the upper surface of the base (1) in a sliding manner and is provided with a first sliding chute (11), the length direction of the first sliding chute (11) is consistent with that of the front supporting support (21), the annular binding ring (41) can slide back and forth on the transverse plate of the inverted L-shaped support (24) and the periphery of the front supporting support (21) in a non-contact manner, and a second sliding positioning assembly (6) is arranged between the first sliding block (43) and the base (1);

a cutting device (7) fixedly arranged at the lower end of the bandage winding device (42).

2. The inflatable dressing fixing device for trauma orthopedics of claim 1, characterized in that:

the bundling ring driving mechanism (5) comprises a first mounting box (51) fixed at the upper end of the first sliding block (43), a worm (52) rotatably connected in the first mounting box (51) and teeth (53) uniformly arranged on the outer wall of the annular bundling ring (41), the teeth (53) are meshed with the worm (52), and one end of the worm (52) extends out of the side wall of the first mounting box (51) and is fixedly connected with a motor (54);

annular second spout (411) have been seted up respectively to the both sides of annular package circle (41), the inside intercommunication cross-section of second spout (411) is circular shape third spout (412), the both sides of first mounting box (51) are equipped with type of falling L connecting rod (55), the horizontal pole of type of falling L connecting rod (55) stretches into in second spout (411) to establish with the slip ball (56) fixed connection in third spout (412).

3. The inflatable dressing fixing device for trauma orthopedics of claim 1, characterized in that:

the bandage winding device (42) comprises a second mounting box (421) fixed on the inner wall of the annular bundling ring (41) and a bandage winding cylinder (422) rotatably mounted at the upper end in the second mounting box (421), an opening (4211) of the second mounting box (421) faces downwards, and the shearing device (7) is fixed in the second mounting box (421) arranged at the lower end of the bandage winding cylinder (422);

a box cover (423) is arranged at the upper end of one side wall of the second mounting box (421).

4. The inflatable dressing fixing device for trauma orthopedics of claim 3, characterized in that:

the shearing device (7) comprises a fourth sliding groove (71) formed in one inner wall of the second mounting box (421), two fourth sliding blocks (72) arranged in the fourth sliding groove (71) in a sliding manner, a cutting blade (73) respectively fixed to one end, close to the opening (4211), of each fourth sliding block (72), and a driving assembly arranged inside the side wall of the second mounting box (421) and used for driving the two fourth sliding blocks (72) to slide towards or away from each other;

the length direction of the fourth chute (71) is perpendicular to the length direction of the bandage winding tube (422).

5. The inflatable dressing fixing device for trauma orthopedics of claim 4, wherein:

a cavity (4212) is formed in the side wall of the second mounting box (421), an elongated slot (4213) is formed in one side wall, close to the cavity (4212), of the fourth sliding slot (71), and the cavity (4212) is communicated with the fourth sliding slot (71) through the elongated slot (4213);

the driving assembly comprises an electric push rod (74) horizontally arranged in the cavity (4212), a connecting block (75) fixed at the telescopic end of the electric push rod (74), and first connecting rods (76) respectively hinged to the two sides of one end, far away from the electric push rod (74), of the connecting block (75), and the other ends of the two first connecting rods (76) are respectively hinged to the fourth sliding block (72).

6. The inflatable dressing fixing device for trauma orthopedics of claim 4, wherein:

a tensioning device (8) is also arranged between the bandage winding cylinder (422) and the shearing device (7);

tensioning device (8) including articulate respectively grip block (81) on the wall of second mounting box (421) both sides, two the lower surface of grip block (81) respectively through second connecting rod (82) with cutting blade (73) upper surface is articulated, the upper end of second connecting rod (82) with the lower surface of grip block (81) is articulated, two when cutting blade (73) support and lean on, two grip block (81) level and support each other tightly.

7. The inflatable dressing fixing device for trauma orthopedics of claim 1, characterized in that:

a fifth sliding block (31) is arranged at the lower end of the supporting rod (23), and the fifth sliding block (31) is arranged on the upper surface of the base (1) in a sliding manner and is provided with a fifth sliding chute (12);

first sliding location subassembly (3) are established including rotating lead screw (32) in fifth spout (12), fifth slider (31) wear to establish and threaded connection on the outer wall of lead screw (32), the one end of lead screw (32) is worn out the outer wall of base (1) and first knob (33) fixed connection of fixed connection.

8. The inflatable dressing fixation device for trauma orthopedics of claim 7, wherein:

a sliding hole (221) is formed in the lower end of the rear supporting support (22), a rack (222) is arranged in the sliding hole (221) in a sliding mode, the lower end of the rack (222) is meshed with a gear (223), the gear (223) is rotatably connected into a groove (225) through a shaft (224), and one end of the shaft (224) penetrates through the side wall of the rear supporting support (22) and is connected with a second knob (226);

the bottom of one side, close to the rear supporting support (22), of the front supporting support (21) is provided with a butt joint sliding hole (211) consistent with the sliding hole (221).

9. The inflatable dressing fixing device for trauma orthopedics department according to claim 1, characterized in that the second sliding positioning component (6) is a positioning bolt (61) penetrating through the side wall of the base (1), the side wall of the base (1) is provided with a long hole (13) communicated with the first sliding chute (11), and the first sliding block (43) is provided with a threaded through hole matched with the positioning bolt (61).

10. The inflatable dressing fixing device for wound orthopedics department according to claim 1, characterized in that the inner walls of the front supporting bracket (21) and the rear supporting bracket (22) are respectively provided with an arc-shaped air bag cushion (212), and the arc-shaped air bag cushions (212) are respectively connected with an inflation and deflation balloon (214) through an air pipe (213).