Limb fixing device used after skin flap operation

Abstract

The invention discloses a limb fixing device after flap surgery, which comprises a basic fixing device, a connecting piece, an upper arm bracket and a forearm bracket, and is characterized in that the basic fixing device is used for binding the upper limb of a patient on a bed body and can be detachably connected with the bed body; the connecting piece is detachably arranged on the foundation fixing device; the upper arm bracket is arranged on the connecting piece and is used for supporting and fixing the upper arm of the affected limb; the forearm bracket is arranged on the upper arm bracket and used for supporting and fixing the forearm of the affected limb. The limb fixing device after the skin flap operation can effectively avoid pressure blood supply disorder, provides a stable anchor point to prevent lateral displacement of an affected limb and meanwhile can avoid raising bedding, and therefore heat preservation of a patient after the skin flap operation is guaranteed.

Description

Technical Field

[0001] The present invention particularly relates to a limb fixation device after skin flap surgery. Background Art

[0002] Cross-abdominal flap surgery is a microsurgical technique that uses abdominal flaps to repair tissue defects in adjacent areas (such as the hands) caused by severe trauma, large areas of skin and soft tissue defects, or ulcers. It is particularly suitable for situations where adjacent flaps cannot be used for repair.

[0003] After surgery, to prevent the skin flap from being compressed due to unconscious movements during sleep or activities, the affected upper limb needs to be effectively fixed. Currently, there are two main technical problems with the commonly used fixation methods in clinical practice: 1. Wrapping strap fixation method: This method usually uses gauze or other flexible fixing belts to wrap the arm and forearm of the affected upper limb, and then tie it to the patient's torso. The technical defects of this method are: 1) Conflict between fixation and blood flow safety: The tightness of the bandage is difficult to precisely control. If it is too loose, it will not effectively restrain limb movement, and there is a risk of flap avulsion and compression; if it is too tight, it may compress blood vessels and soft tissues, leading to blood flow obstruction in the affected limb.

[0004] 2) Waste of consumables and poor reusability. A large amount of disposable bandage materials are consumed and cannot be reused, resulting in waste of resources.

[0005] 3) Insufficient restraint reliability: The straps are prone to displacement or loosening, and are unable to effectively resist lateral movement of the affected limb toward the trunk, and cannot provide reliable shear protection for the flap.

[0006] 2. Bed cantilever fixed frame: This method involves installing a cantilever bracket next to the bed and using a clamping device on the bracket to clamp the upper arm and forearm of the affected limb to the bed surface. 1) Impact on bedding coverage and patient comfort: The overall height of the fixed frame is relatively high, resulting in the bedding covering the patient being suspended, reducing the thermal insulation effect and increasing the risk of the patient catching a cold.

[0007] 2) Pressure control challenges remain: Each part of the limb (upper arm, forearm) relies on mechanical pressure from a compression device for fixation. Too little pressure can lead to ineffective fixation; too much pressure also risks compressing blood vessels and affecting blood circulation, and regulating pressure at multiple points is complex. Summary of the Invention

[0008] In view of the shortcomings of the existing technology, the technical problem to be solved by the present invention is to provide a limb fixation device after flap surgery, which can effectively avoid pressure blood supply obstruction, provide a stable anchor point to prevent lateral movement of the affected limb, and avoid lifting the bedding, thereby ensuring the patient's warmth after flap surgery.

[0009] In order to achieve the above-mentioned object, the present invention is implemented through the following technical solutions: a limb fixation device after flap surgery, comprising: The basic fixing device is used to tie and fix the patient's upper limbs to the bed and can be detachably connected to the bed; A connecting piece, detachably arranged on the basic fixing device; an upper arm bracket, provided on the connecting member, for supporting and fixing the upper arm of the affected limb; and The forearm bracket is arranged on the upper arm bracket and is used for supporting and fixing the forearm of the affected limb.

[0010] Furthermore, the basic fixing device includes: There are two clamping fixtures for clamping and fixing on the bed; and The binding parts include multiple fixing plates and multiple locking parts. The multiple fixing plates are hinged in sequence through the central axis to form a strip shape. The two fixing plates at the head and tail are fixedly connected to the two clamping fixing parts respectively. A locking part is provided between each two adjacent fixing plates. The locking part is used to lock the angle between the two fixing plates. The connecting part can be connected to the fixing plate.

[0011] Furthermore, the locking member includes a stop rod, a stop disk and a driving mechanism. One of each two adjacent fixed plates is provided with a socket parallel to the center axis. The stop disk is sleeved on the center axis. The stop rod is fixedly connected to the stop disk and can be slidably inserted into the socket. The driving mechanism is connected to all the stop disks and is used to simultaneously drive all the stop disks to slide along the center axis and be tightly fixed to the side walls of the fixed plates.

[0012] Furthermore, the driving mechanism includes an airbag and an inflation device, one airbag is mounted on each central axis, the airbag is located between the anti-rotation disk and the fixed plate, and the inflation device is connected to all the airbags through an air pipe for inflating or deflation of all the airbags at the same time.

[0013] Furthermore, the connecting part includes two connecting hinges and a closing structure, a sliding groove is provided at the bottom of the upper arm bracket, and sliders are provided on the top of the two connecting hinges. The two sliders can slide and are relatively clamped in the sliding groove. The closing structure is connected to the two sliders and is used to start the two sliders to move closer or apart from each other. The side of the two connecting hinges away from each other is a spherical surface. A spherical hinge hole is provided on each of the fixing plates, and the radius of the spherical hinge hole is equal to the radius of the spherical surface. When the two connecting hinges approach each other, their spherical surfaces can be inserted and adapted into the spherical hinge holes.

[0014] Furthermore, the closing structure includes a bidirectional screw, which is threadedly connected to the two sliders. Rotating the bidirectional screw can drive the two sliders to move closer to or away from each other.

[0015] Furthermore, a second friction pad is provided on the spherical surface.

[0016] Furthermore, the upper arm support includes an upper arm support plate and an upper arm fixing belt arranged on the upper arm support plate, and the upper arm fixing belt is used to fix the upper arm on the upper arm support plate.

[0017] Furthermore, the forearm support includes a forearm support plate and a forearm fixing strap arranged on the forearm support plate, the forearm fixing strap is used to fix the forearm on the forearm support plate, and the end of the forearm support plate is hinged to the upper arm support plate through an angle adjustment member.

[0018] Furthermore, the angle adjustment member includes a rotating shaft and a fastening screw, the rotating shaft is fixed on the upper arm support plate, the forearm support plate is rotatably connected to the rotating shaft, and the fastening screw is threadedly connected to the upper arm support plate. By rotating the fastening screw, the end of the fastening screw can be tightly fixed to the rotating shaft.

[0019] Beneficial effects of the present invention: The above-mentioned limb fixation device after flap surgery has the following advantages: 1. Effectively avoid pressure-induced blood flow obstruction: The upper arm bracket and forearm bracket respectively support and fix the upper arm and forearm, replacing the existing method of applying annular pressure to the limb by wrapping a fixation belt, fundamentally eliminating the risk of compressing blood vessels and affecting blood flow to the affected limb due to tight wrapping.

[0020] 2. Provide a stable anchor point to prevent the affected limb from moving laterally: The basic fixing device can be detachably connected to the bed, providing a stable anchor point foundation for the entire device, and transmitting the restraining force through the rigid connection of the connecting piece, upper arm bracket, and forearm bracket, which can effectively resist the accidental movement of the affected limb toward the trunk side, significantly reducing the risk of skin flap avulsion.

[0021] 3. Simple structure and easy to use: It adopts a modular combination design of basic fixing device, connecting parts, upper arm bracket and forearm bracket, with clear and reasonable structure and easy installation and disassembly, overcoming the shortcomings of the existing technology such as large amount of fixing belt, easy slipping, cumbersome operation and difficult to reuse.

[0022] 4. Avoid raising bedding: Compared with the cantilever fixing frame in the prior art that needs to be set up on the bed surface, the basic fixing device of this device is directly connected to the bed body (such as the bed frame), and the overall height is lower, thereby ensuring the thermal insulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the specific embodiments. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0024] Figure 1 A schematic diagram of a limb fixation device after flap surgery provided by one embodiment of the present invention; Figure 2 for Figure 1 A partial schematic diagram of the binding components of a limb immobilization device after flap surgery is shown; Figure 3 for Figure 1 The diagram shows an air bag in a limb fixation device pushing a rotation-stop plate to abut against a side wall of a fixation plate after flap surgery; Figure 4 for Figure 1 Schematic diagram of the AA section view; Figure 5 for Figure 1 The diagram shows the connecting hinges of the limb fixation device being brought closer together after flap surgery; Reference numerals: 100. Basic fixing device; 110. Clamping fixing member; 120. Binding member; 121. Fixing plate; 122. Locking member; 1221. Anti-rotation rod; 1222. Anti-rotation disk; 1223. Airbag; 1224. Inflating device; 200. Connecting member; 210. Connecting hinge; 220. Closing structure; 300. Upper arm bracket; 400. Forearm bracket; 500. Angle adjustment member; 510. Rotation axis; 520. Fastening screw. DETAILED DESCRIPTION

[0025] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] See Figures 1 to 5 The present invention provides a limb fixation device after flap surgery, including a basic fixation device 100, a connecting piece 200, an upper arm bracket 300 and a forearm bracket 400.

[0027] Specifically, the basic fixation device 100 is used to secure the patient's upper limb to the bed and is detachably connected to the bed. The connector 200 is detachably mounted on the basic fixation device 100. The upper arm bracket 300 is mounted on the connector 200 and is used to support and secure the patient's upper arm. The forearm bracket 400 is mounted on the upper arm bracket 300 and is used to support and secure the patient's forearm.

[0028] During use, the patient is first tied and fixed to the bed surface via the basic fixing device 100 , and then the upper arm bracket 300 is fixed to the basic fixing device 100 via the connecting piece 200 , and then the upper arm is fixed to the upper arm bracket 300 and the forearm is fixed to the forearm bracket 400 .

[0029] This type of fixation device consists of a base fixture 100 that provides a stable anchor point for the bed; a connector 200 that allows for three-dimensional adjustment and adjustable fixation positions; and segmented brackets that secure the upper arm and forearm separately, avoiding hand joints. This completely replaces wrapping bandages and eliminates the risk of pressure-induced blood flow obstruction. A low-profile design eliminates the need to raise the bedding; and a mechanical limiter actively resists lateral movement of the affected limb, preventing skin flap avulsion.

[0030] In this embodiment, the base fixing device 100 includes a clamping fixture 110 and a binding member 120. Two clamping fixtures 110 are provided for clamping and securing the base to the bed. In practice, the clamping fixtures 110 can employ conventional clamping fixture 110 structures, such as a mounting plate and bolts.

[0031] The binding part 120 includes multiple fixing plates 121 and multiple locking parts 122. The multiple fixing plates 121 are hinged in sequence through the central axis to form a strip shape. The two fixing plates 121 at the head and tail are respectively fixedly connected to the two clamping fixing parts 110. A locking part 122 is arranged between each two adjacent fixing plates 121. The locking part 122 is used to lock the angle between the two fixing plates 121. The connecting part 200 can be connected to the fixing plate 121.

[0032] When in use, first put all the fixing plates 121 in the unlocked state, then pass the binding piece 120 over the patient's chest. At this time, the binding piece 120 is close to the patient's body surface, and then all the fixing plates 121 are locked by the locking piece 122. Then, the entire binding piece 120 can be shaped. Finally, fix the two clamping fixing pieces 110 on the bed frame, and then connect the connecting piece 200 and the fixing plate 121.

[0033] This structure can accommodate patients of any size, thereby improving the stability of the binding fixation.

[0034] Specifically, the locking member 122 includes a stop rod 1221, a stop disk 1222 and a driving mechanism. A socket parallel to the center axis is provided on one of each two adjacent fixed plates 121. The stop disk 1222 is sleeved on the center axis. The stop rod 1221 is fixedly connected to the stop disk 1222 and can be slidably inserted into the socket. The driving mechanism is connected to all the stop disks 1222 and is used to simultaneously drive all the stop disks 1222 to slide along the center axis and be tightly fixed to the side walls of the fixed plate 121.

[0035] Furthermore, the driving mechanism includes an airbag 1223 and an inflation device 1224. An airbag 1223 is mounted on each central axis. The airbag 1223 is located between the anti-rotation disk 1222 and the fixed plate 121. The inflation device 1224 is connected to all the airbags 1223 through an air pipe and is used to inflate or deflate all the airbags 1223 at the same time.

[0036] During use, when the airbag 1223 is in the deflated state, the fixed plate 121 can rotate freely. When the inflation device 1224 inflates the airbag 1223, the anti-rotation disk 1222 is driven to press against the fixed plate 121 to form a frictional anti-rotation, thereby locking the angle of two adjacent fixed plates 121.

[0037] In specific implementation, a plurality of branch air pipes can be connected to the main air pipe, and all air pipes can be connected in series to facilitate simultaneous operation of all air bags 1223. In addition, a friction plate can be provided outside the anti-rotation disk 1222 to further increase friction resistance.

[0038] In this embodiment, the connecting member 200 includes two connecting hinges 210 and a closing structure 220. A sliding groove is provided at the bottom of the upper arm bracket 300. Sliders are provided on the tops of the two connecting hinges 210. The two slides can be slidably and relatively clamped in the sliding groove. The closing structure 220 is connected to the two slides to start the two slides to move closer to or apart from each other. The side of the two connecting hinges 210 away from each other is a spherical surface. A spherical hinge hole is provided on each fixed plate 121, and the radius of the spherical hinge hole is equal to the radius of the spherical surface. When the two connecting hinges 210 approach each other, their spherical surfaces can be inserted and adapted to the spherical hinge hole.

[0039] Specifically, the closing structure 220 includes a bidirectional screw, which is threadedly connected to the two sliders. Rotating the bidirectional screw can drive the two sliders to move closer to or away from each other.

[0040] During use, the two connecting hinges 210 are first driven into the holes using the bidirectional screws. Then, the two connecting hinges 210 are inserted into the spherical hinge holes. After adjusting the angle of the upper arm bracket 300, the bidirectional screws are rotated in opposite directions to separate the two connecting hinges 210. This is done until the spherical surface of the connecting hinge 210 is firmly seated in the spherical hinge hole. To enhance the securing effect, a second friction pad can be provided on the spherical surface.

[0041] In this embodiment, the upper arm support 300 includes an upper arm support plate and an upper arm fixing belt provided on the upper arm support plate, and the upper arm fixing belt is used to fix the upper arm on the upper arm support plate.

[0042] The forearm support 400 includes a forearm support plate and a forearm fixing strap mounted on the forearm support plate. The forearm fixing strap is used to secure the forearm to the forearm support plate. The end of the forearm support plate is hingedly connected to the upper arm support plate via an angle adjustment member 500. During use, the forearm support plate can be tilted upward as needed to elevate the hand and reduce congestion at the hand flap surgery site.

[0043] Specifically, the angle adjustment member 500 includes a rotating shaft 510 and a fastening screw 520. The rotating shaft 510 is fixed on the upper arm support plate, the forearm support plate and the rotating shaft 510 can be rotatably connected, and the fastening screw 520 is threadedly connected to the upper arm support plate. When the fastening screw 520 is rotated, the end of the fastening screw 520 can be tightly fixed to the rotating shaft 510.

[0044] When in use, loosen the fastening screw 520, rotate the forearm support plate to a desired angle, and then tighten the fastening screw 520.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A limb fixation device after flap surgery, characterized in that: include: The basic fixing device is used to tie and fix the patient's upper limbs to the bed and can be detachably connected to the bed; A connecting piece, detachably arranged on the basic fixing device; an upper arm bracket, provided on the connecting member, for supporting and fixing the upper arm of the affected limb; and The forearm bracket is arranged on the upper arm bracket and is used for supporting and fixing the forearm of the affected limb.

2. The limb fixation device after flap surgery according to claim 1, characterized in that: The basic fixing device comprises: There are two clamping fixtures for clamping and fixing on the bed; and The binding parts include multiple fixing plates and multiple locking parts. The multiple fixing plates are hinged in sequence through the central axis to form a strip shape. The two fixing plates at the head and tail are fixedly connected to the two clamping fixing parts respectively. A locking part is provided between each two adjacent fixing plates. The locking part is used to lock the angle between the two fixing plates. The connecting part can be connected to the fixing plate.

3. The limb fixation device after flap surgery according to claim 2, characterized in that: The locking member includes a stop rod, a stop disk and a driving mechanism. One of each two adjacent fixed plates is provided with a socket parallel to the center axis. The stop disk is sleeved on the center axis. The stop rod is fixedly connected to the stop disk and can be slidably inserted into the socket. The driving mechanism is connected to all the stop disks and is used to simultaneously drive all the stop disks to slide along the center axis and be tightly fixed to the side walls of the fixed plates.

4. The limb fixation device after flap surgery according to claim 3, characterized in that: The driving mechanism includes an airbag and an inflation device. An airbag is mounted on each central axis. The airbag is located between the anti-rotation disk and the fixed plate. The inflation device is connected to all the airbags through an air pipe and is used to inflate or deflate all the airbags at the same time.

5. The limb fixation device after flap surgery according to claim 2, characterized in that: The connecting part includes two connecting hinges and a closing structure. A sliding groove is provided at the bottom of the upper arm bracket. Sliders are provided on the top of the two connecting hinges. The two slides can be slidably and relatively clamped in the sliding groove. The closing structure is connected to the two slides and is used to start the two slides to move closer or apart from each other. The side of the two connecting hinges away from each other is a spherical surface. A spherical hinge hole is provided on each of the fixing plates, and the radius of the spherical hinge hole is equal to the radius of the spherical surface. When the two connecting hinges approach each other, their spherical surfaces can be inserted and adapted into the spherical hinge holes.

6. The limb fixation device after flap surgery according to claim 2, characterized in that: The closing structure includes a bidirectional screw, which is threadedly connected to the two sliders. Rotating the bidirectional screw can drive the two sliders to move closer to or away from each other.

7. The limb fixation device after flap surgery according to claim 5, characterized in that: A second friction pad is provided on the spherical surface.

8. The limb fixation device after flap surgery according to claim 1, characterized in that: The upper arm bracket includes an upper arm supporting plate and an upper arm fixing belt arranged on the upper arm supporting plate, and the upper arm fixing belt is used to fix the upper arm on the upper arm supporting plate.

9. The limb fixation device after flap surgery according to claim 8, characterized in that: The forearm support includes a forearm support plate and a forearm fixing belt arranged on the forearm support plate, the forearm fixing belt is used to fix the forearm on the forearm support plate, and the end of the forearm support plate is hinged to the upper arm support plate through an angle adjustment piece.

10. The limb fixation device after flap surgery according to claim 9, characterized in that: The angle adjustment member includes a rotating shaft and a fastening screw, the rotating shaft is fixed to the upper arm support plate, the forearm support plate is rotatably connected to the rotating shaft, and the fastening screw is threadedly connected to the upper arm support plate. By rotating the fastening screw, the end of the fastening screw can be tightly fixed to the rotating shaft.

Images