Protective fixator special for lower limb interventional operation

Abstract

The utility model relates to a protection type fixator special for lower limb interventional operation, which aims to solve the technical problem that the lower limb fixing angle of the existing fixator is inconvenient to flexibly adjust according to operation requirements, and comprises a fixing seat, and a first supporting plate and a second supporting plate are arranged above the fixing seat; the adjusting mechanism is used for adjusting the fixing angle of the lower limbs, the adjusting mechanism comprises a lead screw, one end of the first supporting plate is hinged to one end of the second supporting plate, and limiting grooves are horizontally and symmetrically formed in the two sides of the upper surface of the fixing base. In the rotating process of the lead screw, the two sets of limiting blocks can be driven to move relatively, the connecting angle of the first supporting plate and the second supporting plate can be adjusted through hinge joint of the first connecting block and the second connecting block and combination of the first supporting plate and the second supporting plate, and a worker can conveniently adjust the fixing angle of the lower limbs according to the operation requirement.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically a protective fixator for lower limb interventional procedures. Background Technology

[0002] Lower extremity interventional procedures, as an important minimally invasive treatment, are increasingly widely used in clinical practice. These procedures typically involve minimally invasive manipulations of blood vessels or tissues in the lower extremities, such as punctures and catheter placement. Lower extremity interventional procedures may lead to complications such as bleeding at the puncture site and oozing. Immobilizing the patient's lower limb helps reduce movement at the puncture site and lowers the risk of complications.

[0003] The inventors discovered that at least the following problems remain unresolved in existing technologies: traditional lower limb interventional fixators are simple in design but lack sufficient flexibility and adaptability. In actual surgery, surgeons often need to fix the lower limbs at different angles according to the patient's specific condition and surgical requirements to facilitate puncture and catheter placement. Therefore, a new technical solution is needed to address these issues. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a protective fixator for lower limb interventional surgery, so as to solve the technical problem that the current fixator is not convenient to flexibly adjust the lower limb fixation angle according to the needs of surgery.

[0005] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: A protective fixator for lower limb interventional surgery is designed, including a fixation base, with a first support plate and a second support plate disposed above the fixation base; an adjustment mechanism for adjusting the fixation angle of the lower limb, the adjustment mechanism including a lead screw, one end of the first support plate being hinged to one end of the second support plate, symmetrically horizontally opening limit grooves on both sides of the upper surface of the fixation base, with limit blocks slidably connected to the inner side of the limit grooves, a first connecting block vertically fixedly installed in the middle of the upper surface of the limit block, and second connecting blocks fixedly installed on the lower surfaces of both the first and second support plates, the second connecting blocks on the lower surfaces of the first and second support plates being hinged to the first connecting blocks on the upper surfaces of the two sets of limit blocks respectively, the lead screw horizontally penetrating the middle of the two sets of limit blocks and threadedly connected to the limit blocks; a fixation mechanism for fixing the lower limb, the fixation mechanism including a fixing strip, with fixing holes penetrating the far ends of both the first and second support plates, and screws vertically fixedly installed on both sides of the bottom side of the fixing strip, the bottom end of the screws being threadedly connected to a nut.

[0006] Preferably, the lead screw is rotatably connected to the fixed seat via a bearing, and the threads on both sides of the lead screw have opposite directions.

[0007] Preferably, a handwheel is fixedly installed at one end of the lead screw located outside the fixed base, and the outer side of the handwheel is provided with anti-slip texture.

[0008] Preferably, the screw is movably connected to the fixing hole, and the nut is placed on the bottom side of the first support plate and the second support plate.

[0009] Preferably, the dimensions of the first support plate and the second support plate are matched, and the fixing holes are evenly distributed on the front and rear sides of the first support plate and the second support plate.

[0010] Preferably, the bottom side of the fixing strip is arc-shaped, and a silicone pad is adhered to the bottom side of the fixing strip.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. The present invention can drive the lead screw to rotate by rotating the handwheel. The threads on both sides of the lead screw rotate in opposite directions. During the rotation of the lead screw, it can drive the two sets of limiting blocks to move relative to each other. The first connecting block and the second connecting block are hinged together, and the first support plate and the second support plate are hinged together. The connection angle of the first support plate and the second support plate can be adjusted, which makes it convenient for the staff to adjust the fixation angle of the lower limb according to the needs of the operation.

[0013] 2. This utility model inserts two sets of screws on the bottom side of the fixing strip into two sets of fixing holes on the upper surface of the first and second support plates, so that the silicone pad on the bottom side of the fixing strip fits against the patient's lower limb. Then, the nut at the bottom end of the screw is tightened, and the patient's lower limb can be fixed by the fixing strip. The structure is simple and easy to operate. Attached Figure Description

[0014] Figure 1 This is the front view of the present invention;

[0015] Figure 2 This is a bottom side view of the present invention;

[0016] Figure 3 This is a schematic diagram of the structure of this utility model;

[0017] In the diagram: 1. Fixed base; 11. First support plate; 12. Second support plate; 13. Limiting groove; 14. Limiting block; 15. First connecting block; 16. Second connecting block; 17. Lead screw; 18. Handwheel; 2. Fixing hole; 21. Fixing strip; 22. Screw; 23. Nut; 24. Silicone pad. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] Protective fixation device for lower limb interventional procedures, see [link / reference]. Figures 1 to 3The system includes a fixed base 1, with a first support plate 11 and a second support plate 12 positioned above the fixed base 1. The dimensions of the first support plate 11 and the second support plate 12 are matched. An adjustment mechanism is used to adjust the fixed angle of the lower limb. The adjustment mechanism includes a lead screw 17. One end of the first support plate 11 is hinged to one end of the second support plate 12. Limiting grooves 13 are horizontally symmetrically opened on both sides of the upper surface of the fixed base 1. Limiting blocks 14 are slidably connected to the inner side of the limiting grooves 13. A first connecting block 15 is vertically fixedly installed in the middle of the upper surface of the limiting block 14. Second connecting blocks 16 are fixedly installed on the lower surfaces of the first support plate 11 and the second support plate 12. The second connecting blocks 16 on the lower surfaces of the first support plate 11 and the second support plate 12 are respectively hinged to the first connecting blocks 15 on the upper surfaces of the two sets of limiting blocks 14.

[0020] The lead screw 17 is threadedly connected to the limiting block 14. During the rotation of the lead screw 17, the limiting block 14 can move left and right within the limiting groove 13. The first connecting block 15 is hinged to the second connecting block 16, and the first support plate 11 and the second support plate 12 are hinged. During the movement of the limiting block 14, the connection angle of the first support plate 11 and the second support plate 12 can be adjusted, which makes it convenient for the staff to flexibly adjust the fixation angle of the lower limb according to the needs of the surgery.

[0021] For details, see Figures 1 to 3 Fixing mechanism: used for fixing the lower limbs. The fixing mechanism includes a fixing strip 21. Fixing holes 2 are opened through the ends of the first support plate 11 and the second support plate 12. Screws 22 are vertically fixed on both sides of the bottom side of the fixing strip 21. The screws 22 are movably connected to the fixing holes 2. Nuts 23 are threadedly connected to the bottom end of the screws 22. Nuts 23 are placed on the bottom side of the first support plate 11 and the second support plate 12.

[0022] The patient's lower limb requiring surgery is placed on the upper surfaces of the first support plate 11 and the second support plate 12, with the patient's knee positioned at the connection point of the first support plate 11 and the second support plate 12. Then, the two sets of screws 22 on the bottom sides of the two sets of fixing strips 21 are inserted into the corresponding fixing holes 2 on the upper surfaces of the first support plate 11 and the second support plate 12, so that the bottom side of the fixing strips 21 fits against the patient's lower limb. Then, the nuts 23 at the bottom ends of the screws 22 are tightened. The patient's lower limb can be fixed through the fixing strips 21. The structure is simple and easy to operate.

[0023] Further, see Figures 1 to 3 The lead screw 17 passes horizontally through the middle of the two sets of limit blocks 14 and is threadedly connected to the limit blocks 14. The lead screw 17 is rotatably connected to the fixed seat 1 through the bearing. The threads on both sides of the lead screw 17 are in opposite directions. A handwheel 18 is fixedly installed at one end of the lead screw 17 on the outside of the fixed seat 1. The outside of the handwheel 18 is provided with anti-slip texture.

[0024] The operator can easily drive the lead screw 17 to rotate via the handwheel 18. Since the threads on both sides of the lead screw 17 rotate in opposite directions, the lead screw 17 can drive the two sets of limit blocks 14 to move relative to or in opposite directions within the two sets of limit grooves 13 during rotation, thereby quickly adjusting the connection angle of the first support plate 11 and the second support plate 12. It should be noted that the lead screw 17 is a trapezoidal lead screw with a self-locking function.

[0025] It is worth noting that, see Figures 1 to 3 The fixing holes 2 are evenly distributed on the front and rear sides of the first support plate 11 and the second support plate 12.

[0026] The fixing holes 2 are evenly distributed on the upper surfaces of the first support plate 11 and the second support plate 12, which makes it convenient for staff to adjust the fixing position of the fixing strip 21 on the lower limb and avoid the fixing strip 21 from obstructing the surgical view.

[0027] It is worth noting that, see Figures 1 to 3 The bottom side of the fixing strip 21 is arc-shaped, and a silicone pad 24 is adhered to the bottom side of the fixing strip 21.

[0028] By attaching a silicone pad 24 to the bottom side of the fixation strip 21, the fixation effect of the fixation strip 21 on the patient's lower limbs and the comfort of use can be improved.

[0029] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0030] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A protective fixator for lower limb interventional surgery, comprising a fixation base (1), characterized in that, A first support plate (11) and a second support plate (12) are provided above the fixed base (1). Adjustment mechanism: used to adjust the fixed angle of the lower limb. The adjustment mechanism includes a screw (17). One end of the first support plate (11) is hinged to one end of the second support plate (12). Limiting grooves (13) are horizontally symmetrically opened on both sides of the upper surface of the fixed seat (1). Limiting blocks (14) are slidably connected to the inner side of the limiting grooves (13). A first connecting block (15) is vertically fixedly installed in the middle of the upper surface of the limiting block (14). A second connecting block (16) is fixedly installed on the lower surface of the first support plate (11) and the second support plate (12). The second connecting blocks (16) on the lower surface of the first support plate (11) and the second support plate (12) are respectively hinged to the first connecting blocks (15) on the upper surface of the two sets of limiting blocks (14). The screw (17) horizontally passes through the middle of the two sets of limiting blocks (14) and is threadedly connected to the limiting blocks (14). Fixing mechanism: used for fixing the lower limbs, the fixing mechanism includes a fixing strip (21), the first support plate (11) and the second support plate (12) are respectively provided with a fixing hole (2) at the far end, and the fixing strip (21) is vertically fixed on both sides of the bottom side with a screw (22), and the bottom end of the screw (22) is threaded with a nut (23).

2. The protective fixator for lower limb interventional surgery as described in claim 1, characterized in that, The lead screw (17) is rotatably connected to the fixed seat (1) via a bearing, and the threads on both sides of the lead screw (17) are in opposite directions.

3. The protective fixator for lower limb interventional surgery as described in claim 1, characterized in that, The screw (17) is fixedly mounted with a handwheel (18) at one end outside the fixed seat (1), and the handwheel (18) has anti-slip texture on the outside.

4. The protective fixator for lower limb interventional surgery as described in claim 1, characterized in that, The screw (22) is movably connected to the fixing hole (2), and the nut (23) is placed on the bottom side of the first support plate (11) and the second support plate (12).

5. The protective fixator for lower limb interventional surgery as described in claim 1, characterized in that, The dimensions of the first support plate (11) and the second support plate (12) are matched, and the fixing holes (2) are evenly distributed on the front and rear sides of the first support plate (11) and the second support plate (12).

6. The protective fixator for lower limb interventional surgery as described in claim 1, characterized in that, The bottom side of the fixing strip (21) is arc-shaped, and a silicone pad (24) is adhered to the bottom side of the fixing strip (21).

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