Fixator for fracture patient
By introducing a ring-shaped airbag design into the fracture fixator, the problem of skin pressure sores caused by poor air permeability of existing fixators is solved, and comfortable fixation is achieved in hot environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AFFILIATED HOSPITAL OF SHAOXING UNIV OF ARTS & SCI
- Filing Date
- 2025-01-15
- Publication Date
- 2026-04-21
AI Technical Summary
Existing fracture fixation devices are prone to causing pressure sores in hot weather due to poor breathability and secondary injuries.
A fracture fixation device was designed, which uses a semi-circular base and a top cover, with an inner ring-shaped lower air bladder ring and an upper air bladder ring. After inflation, it wraps around the limb and is fixed in conjunction with the adjusting screw to improve air permeability.
The airbag ring design enhances the breathability between the fixator and the skin, preventing pressure sores and improving patient comfort.
Smart Images

Figure CN224141013U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to a fixation device for fracture patients. Background Technology
[0002] Limb joint fractures are a common type of fracture, usually caused by trauma, accidents, or violence. Initial treatment often takes place in a hospital bed, typically involving immobilizing the limb in front of and behind the joint to prevent further movement of the fractured fragments and potential more serious injury.
[0003] Therefore, fixation devices are needed for assistance. Currently, there are several fixation devices on the market, such as a fracture fixation device with Chinese Patent Publication No. CN118806505A, which includes a main board, two fixation components, and multiple adjustment components. The fixation components include a fixation frame, fixation straps, fixation rings, and a first Velcro strap. The adjustment components include a slider, a transverse screw, a limiting ring, a first clamping ring, a second clamping ring, a fixation screw, and a fixing element. The main board is the main body of the fixation device and is relatively sturdy overall…
[0004] However, as mentioned above, the fixation devices, due to the close contact between the fixing straps and the patient's skin, and the closed fixation method, are not breathable, which can easily cause pressure sores, especially in hot weather, and cause secondary damage. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] In view of the shortcomings of the prior art, this utility model provides a fixation device for fracture patients, which solves the problems mentioned in the background art.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a fixation device for fracture patients, comprising a semi-circular base, two semi-circular upper covers, two side positioning blocks, and a bottom positioning block. One end of each upper cover is hinged to the first and last ends of the base, and the other end of each upper cover is detachably connected to the base via a fixing assembly. Adjusting screws are pivotally connected to both the side positioning blocks and the bottom positioning block. The adjusting screws on the two side positioning blocks pass laterally through both sides of the base and are threadedly connected to them. The adjusting screw on the bottom positioning block passes vertically through the bottom of the base or the top of the upper cover and is threadedly connected to it. Annular lower airbag rings and upper airbag rings are provided on the inner sides of the base and the upper covers.
[0009] Preferably, the side positioning block and the bottom positioning block are provided with a lower airbag ring and an upper airbag ring on both the front and rear sides.
[0010] Preferably, the lower airbag ring and the upper airbag ring are connected, and their inflation nozzles are located on the side of the base.
[0011] Preferably, the inner surfaces of the lower airbag ring and the upper airbag ring are provided with dense semi-circular protrusions.
[0012] Preferably, the fixing component includes a lower connecting plate disposed on the base and an upper connecting plate disposed on the upper cover. The lower connecting plate and the upper connecting plate are provided with corresponding screw holes, and the screw holes of the two are connected by fixing bolts.
[0013] (III) Beneficial Effects
[0014] This invention provides a fixation device for fracture patients. It has the following beneficial effects:
[0015] 1. The fixation device for this fracture patient, after the positioning block has positioned the limb, inflates the lower and upper air bladder rings to completely wrap the limb. Then, the side and bottom positioning blocks are adjusted to detach from the limb. The lower and upper air bladder rings are used to fix the limb, which can improve the breathability between the limb and the patient's skin and effectively prevent the formation of pressure sores.
[0016] 2. The fixation device for this fracture patient has semi-circular protrusions on the inner surfaces of the lower and upper air bladder rings. The gap between the semi-circular protrusions can improve the breathability of the skin at the fixation site and prevent pressure sores. Attached Figure Description
[0017] Figure 1 This is an isometric view of the present invention;
[0018] Figure 2 This is a diagram showing the position of the lower airbag ring and positioning block of this utility model.
[0019] Figure 3 This is a schematic diagram of the usage state of this utility model.
[0020] In the diagram: 1. Base, 2. Top cover, 3. Lower connecting plate, 4. Upper connecting plate, 5. Fixing bolt, 6. Side positioning block, 7. Bottom positioning block, 8. Adjusting screw, 9. Lower airbag ring, 10. Upper airbag ring, 11. Inflation nozzle, 12. Semi-circular protrusion. Detailed Implementation
[0021] This utility model provides a fixation device for fracture patients, such as... Figure 1-3As shown, it includes a semi-circular base 1, two semi-circular upper covers 2, two side positioning blocks 6 and a bottom positioning block 7. One end of the two upper covers 2 is respectively hinged to the two ends of the base 1. The other end of the upper cover 2 is detachably connected to the base 1 through a fixing component. The fixing component includes a lower connecting plate 3 set on the base 1 and an upper connecting plate 4 set on the upper cover 2. The lower connecting plate 3 and the upper connecting plate 4 are provided with corresponding screw holes, and the screw holes of the two are connected by a fixing bolt 5.
[0022] The top cover 2 is used to initially fix the base 1 to the limb to prevent the base 1 from falling off.
[0023] like Figure 1 As shown, adjusting screws 8 are pivotally connected to both side positioning blocks 6 and the bottom positioning block 7. The adjusting screws 8 on the two side positioning blocks 6 pass laterally through both sides of the base 1 and are threadedly connected to them. The two positioning blocks 6 are used to position the sides of the limb. The adjusting screw 8 on the bottom positioning block 7 passes vertically through the bottom of the base 1 or the top of the top cover 2 and is threadedly connected to it. That is to say, the bottom positioning block 6 can be set on the base 1 or the top cover 2. The optimal setting is on the top cover 2, which can avoid the adjusting screw 8 acting on the bed and causing unevenness at the bottom of the base 1. The inner sides of the base 1 and the top cover 2 are provided with annular lower airbag ring 9 and upper airbag ring 10. The thickness of the lower airbag ring 9 and the upper airbag ring 10 when fully inflated is greater than the thickness of the positioning blocks.
[0024] Each top cover 2 is equipped with two sets of lower airbag rings 9 and upper airbag rings 10. Lower airbag rings 9 and upper airbag rings 10 are also provided on the front and rear sides of the side positioning block 6 and the bottom positioning block 7. The two sets of lower airbag rings 9 and upper airbag rings 10 can improve the stability during fixation.
[0025] The lower airbag ring 9 and the upper airbag ring 10 are connected, and their inflation nozzles 11 are located on the side of the base 1. The two sets of lower airbag rings 9 and upper airbag rings 10 on the same side can share one inflation nozzle 11.
[0026] The inner surfaces of the lower airbag ring 9 and the upper airbag ring 10 are provided with dense semi-circular protrusions 12. Alternatively, multiple rows of semi-circular protrusions 12 can be arranged longitudinally along the length of the base 1, with adjacent rows of semi-circular protrusions 12 staggered.
[0027] Working Principle: Step 1: Place the base 1 under the limb that needs to be secured, with the two upper covers 2 positioned at the front and rear of the joint on the limb. Then connect the upper covers 2 to the base 1. Step 2: Adjust the side positioning blocks 6 and bottom positioning blocks 7 using the adjusting screw 8 until they contact the limb. Use the two side positioning blocks 6 and bottom positioning blocks 7 to perform three-point positioning of the limb, placing it in the center position between the base 1 and the upper covers 2. Step 3: Inflate the lower airbag ring 9 and upper airbag ring 10, ensuring they completely enclose the limb. Step 4: ... Figure 3 As shown, turn the adjusting screw 8 outward to disengage the two side positioning blocks 6 and the bottom positioning block 7 from the limb, and use the lower airbag ring 9 and the upper airbag ring 10 to fix the limb.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fixation device for a patient with a bone fracture, characterized in that: It includes a semi-circular base (1), two semi-circular top covers (2), two side positioning blocks (6) and a bottom positioning block (7). One end of the two top covers (2) is hinged to the two ends of the base (1), and the other end of the top cover (2) is detachably connected to the base (1) through a fixing component. Adjusting screws (8) are pivotally connected to the two side positioning blocks (6) and the bottom positioning block (7). The adjusting screws (8) on the two side positioning blocks (6) pass horizontally through both sides of the base (1) and are threaded to them. The adjusting screws (8) on the bottom positioning block (7) pass vertically through the bottom of the base (1) or the top of the top cover (2) and are threaded to them. The inner sides of the base (1) and the top cover (2) are provided with annular lower airbag rings (9) and upper airbag rings (10).
2. The apparatus of claim 1 wherein: The side positioning block (6) and the bottom positioning block (7) are provided with a lower airbag ring (9) and an upper airbag ring (10) on their front and rear sides.
3. The apparatus of claim 1 wherein: The lower airbag ring (9) and the upper airbag ring (10) are connected, and their inflation nozzles (11) are located on the side of the base (1).
4. The apparatus of claim 1 wherein: The inner surfaces of the lower airbag ring (9) and the upper airbag ring (10) are provided with dense semi-circular protrusions (12).
5. The apparatus of claim 1 wherein: the first and second elongated members are formed of a material selected from the group consisting of: stainless steel, titanium, and cobalt-chrome alloys. The fixing assembly includes a lower connecting plate (3) set on the base (1) and an upper connecting plate (4) set on the upper cover (2). The lower connecting plate (3) and the upper connecting plate (4) are provided with corresponding screw holes, and the screw holes of the two are connected by fixing bolts (5).
Citation Information
Patent Citations
Fracture fixator
CN118806505A