Medical side-lying position pelvis fixator

Abstract

The utility model discloses a medical side-lying position pelvis fixator, which relates to the technical field of medical instruments and comprises a fixing frame, a sliding component, a rotating component and a fixing cushion. One end of the fixing frame is connected to an operating bed frame, the other end of the fixing frame is connected with the sliding assembly, the sliding assembly is slidably connected with the rotating assembly, the end of the rotating assembly is fixedly connected with the fixing soft cushion, and the rotating assembly is used for adjusting the angle of the fixing soft cushion. The front-back position of the fixator is directly adjusted by adjusting the sliding position of the rotating assembly, operation is easy, and the problem that in the prior art, a fixing device is complex to adjust is solved.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a medical lateral decubitus pelvic fixator. Background Technology

[0002] When performing total hip replacement, total hip repair, or other hip surgeries, doctors often use fixation devices to stabilize the pelvis from the front and back of the patient, keeping the patient in a lateral decubitus position and preventing the patient from tilting forward or backward.

[0003] Currently, existing fixation devices are generally divided into two types. One type is a plastic plate the same width as the operating table, with densely packed round holes on the plastic plate. Several plastic rods are also prepared, and a soft pad is laid on top of the plastic plate. The patient lies on their side on the soft pad, and then a plastic rod is inserted into the round holes of the plastic plate at the front and back of the patient's pelvis, close to the patient's body, to keep the patient in a side-lying position and prevent them from tilting forward or backward.

[0004] Another example is Chinese Utility Model Patent CN201720174980.6, which provides a retractable hip replacement surgical support, including a first L-shaped joint, a second L-shaped joint, a third L-shaped joint, a fourth L-shaped joint, a gear rotating device, a track sliding locking device, and a pelvic fixation device. The vertical side of the first L-shaped joint is fixed to the operating table, and a groove is provided on its horizontal side. The horizontal side of the second L-shaped joint slides within the groove, and the horizontal side of the second L-shaped joint also has a horizontal toothed track. The gear rotating device and the track sliding locking device are disposed on the horizontal toothed track. The vertical side of the third L-shaped joint is adjustable up and down and locked onto the vertical side of the second L-shaped joint. The horizontal side of the fourth L-shaped joint is adjustable left and right and locked onto the horizontal side of the third L-shaped joint. The pelvic fixation device is locked onto the vertical side of the fourth L-shaped joint. The adjustment of the fixation device in both methods is relatively complex. Utility Model Content

[0005] The purpose of this invention is to provide a medical lateral decubitus pelvic fixation device to solve the problem of complex adjustment of fixation devices in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A medical lateral decubitus pelvic fixation device includes a fixation frame, a sliding component, a rotating component, and a fixation pad; one end of the fixation frame is connected to the edge of the operating table, and the other end is connected to the sliding component. The rotating component is slidably connected to the sliding component, and the end of the rotating component is fixedly connected to the fixation pad. The rotating component is used to adjust the angle of the fixation pad.

[0008] Optionally, the sliding assembly includes a rotating device, a sliding sleeve, and a sliding inner core, wherein the rotating device is connected to one end of the sliding inner core, and the sliding inner core is located inside the sliding sleeve.

[0009] Optionally, the rotating device includes a rocker arm and a connecting block, one end of which is connected to the end of the sliding inner core, and the other end is bolted to the rocker arm.

[0010] Optionally, the sliding inner core includes a bearing, a lead screw, and a sliding block, wherein the bearing is disposed at both ends of the lead screw, and the sliding block is slidably connected to the lead screw.

[0011] Optionally, a bushing is provided on the fixing frame, and the sliding sleeve is connected inside the bushing.

[0012] Optionally, the bearing, sliding sleeve, and bushing are all provided with threaded holes, and screws pass through the threaded holes to fix the bearing, sliding sleeve, and bushing together.

[0013] Optionally, the sliding sleeve is provided with a sliding groove, and a stop ring is provided at the end of the sliding groove.

[0014] Optionally, the rotating assembly includes a rotating adjusting component, a supporting component, a nut, and a ball joint. The supporting component has a threaded hole and an external thread on its outer wall. The rotating connecting component is rotatably connected to the supporting component through the threaded hole. One end of the nut is rotatably connected to the supporting component through the external thread, and the other end of the nut is rotatably connected to the ball joint.

[0015] Optionally, the ball joint includes a ball and a connecting rod, the ball being rotatably connected to a nut, and the end of the connecting rod being connected to the fixing pad.

[0016] Optionally, the fixing pad is arc-shaped.

[0017] Beneficial effects: The medical lateral decubitus pelvic fixator of this utility model has the following advantages:

[0018] (1) A medical lateral decubitus pelvic fixation device of the present invention includes a fixation frame, a sliding component, a rotating component and a fixing pad; the rotating component and the sliding component are slidably connected, and the front and rear positions of the fixing pad can be directly adjusted by adjusting the sliding position of the rotating component. The operation is simple and solves the problem of complex adjustment of fixation devices in the prior art.

[0019] (2) By adjusting the angle of the fixing pad by using the arc shape of the fixing pad and the rotating component, the fixing pad can fit the patient's body better and the fixing effect is better.

[0020] (3) By using the ball joint and the rotating adjustment component, one hand can loosen the rotating adjustment component, the other hand can rotate the fixed pad to the appropriate position, and then tighten the rotating adjustment component to adjust the angle of the fixed pad. The operation is simple. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a medical lateral decubitus pelvic fixator in the embodiment;

[0022] Figure 2 This is a schematic diagram showing the connection between the rotating device and the sliding inner core in the embodiment;

[0023] Figure 3 This is a schematic diagram of the overall structure of the sliding sleeve in the embodiment;

[0024] Figure 4 This is a schematic diagram of the overall structure of the rotating component in the embodiment;

[0025] Figure 5 This is a schematic diagram of the overall structure of the ball joint in the embodiment;

[0026] Figure 6 This is a schematic diagram of the overall structure of the card in the embodiment.

[0027] In the diagram: 1. Fixed frame; 2. Sliding assembly; 21. Rotating device; 211. Rocker arm; 212. Connecting block; 22. Sliding sleeve; 23. Sliding inner core; 231. Bearing; 232. Lead screw; 233. Sliding block; 3. Rotating assembly; 31. Rotation adjustment component; 32. Support component; 33. Nut; 34. Ball joint; 341. Ball; 342. Connecting rod; 4. Fixed pad; 5. Bushing; 6. Sliding groove; 7. Stop ring. Detailed Implementation

[0028] Example

[0029] like Figures 1-6 As shown, this embodiment provides a medical lateral decubitus pelvic fixator. See [link to relevant documentation]. Figure 1 It includes a fixed frame 1, a sliding component 2, a rotating component 3, and a fixed pad 4; one end of the fixed frame 1 is connected to the edge of the operating table, and the other end is connected to the sliding component 2. The rotating component 3 is slidably connected to the sliding component 2, and the fixed pad 4 is fixedly connected to the end of the rotating component 3. The rotating component 3 is used to adjust the angle of the fixed pad 4.

[0030] Specifically, the fixation frame 1 is elongated and typically has two fixators, which support the anterior and posterior sides of the pelvis from the patient's front and back respectively. The bottom of the fixator is secured to the edge of the operating table via a clip. (See the schematic diagram of the clip for details.) Figure 6The fastener includes a U-shaped locking part and a fastening screw. The opening width of the U-shaped locking part is slightly larger than the width of the operating table frame. Both ends of the U-shaped locking part are provided with through holes, the size of which is adapted to the cross-sectional size of the fixation frame 1. A threaded hole is provided in the middle of the U-shaped locking part. When fixing, the U-shaped locking part is locked onto the operating table frame, the bottom of the fixation frame 1 passes through the through holes at both ends, and the fastening screw is tightened to fix the fixator to the hospital bed.

[0031] This utility model discloses a medical lateral decubitus pelvic fixation device, which includes a fixation frame 1, a sliding component 2, a rotating component 3, and a fixing pad 4. The rotating component 3 is slidably connected to the sliding component 2, and the front and rear positions of the fixing pad can be directly adjusted by adjusting the sliding position of the rotating component 3. The operation is simple and solves the problem of complex adjustment of fixation devices in the prior art.

[0032] In an optional implementation, see Figures 1-3 The sliding assembly 2 includes a rotating device 21, a sliding sleeve 22, and a sliding inner core 23. The rotating device 21 is connected to one end of the sliding inner core 23, and the sliding inner core 23 is located inside the sliding sleeve 22.

[0033] In an optional implementation, see Figure 2 The rotating device 21 includes a rocker arm 211 and a connecting block 212. One end of the connecting block 212 is connected to the end of the sliding inner core 23, and the other end is bolted to the rocker arm 211. Specifically, the ends of the connecting block 212 and the sliding inner core 23 are provided with threaded holes, and screws pass through the threaded holes to fix the connecting block 212 and the sliding inner core 23 together.

[0034] In an optional implementation, see Figure 2 The sliding inner core 23 includes a bearing 231, a lead screw 232, and a sliding block 233. The bearing 231 is disposed at both ends of the lead screw 232, and the sliding block 233 is slidably connected to the lead screw 232. Specifically, two bearings 231 are disposed at the left end of the lead screw 232, and one bearing 231 is disposed at the right end of the lead screw 232. Rotating the rotating device 21 can move the sliding block 233 on the lead screw 232.

[0035] In an optional implementation, see Figure 1 The fixed frame 1 is provided with a bushing 5, and the sliding sleeve 22 is connected inside the bushing 5. Specifically, the bushing 5 is welded to the top of the fixed frame 1. The bearing 231, the sliding sleeve 22 and the bushing 5 are all provided with threaded holes, and screws pass through the threaded holes to fix the bearing 231, the sliding sleeve 22 and the bushing 5 together.

[0036] In an optional implementation, see Figure 1 and Figure 3The sliding sleeve 22 is provided with a sliding groove 6, and a stop ring 7 is provided at the end of the sliding groove 6; the stop ring 7 is provided to prevent the rotating component 3 from sliding out of the sliding groove 6.

[0037] In an optional implementation, see Figure 4 The rotating assembly 3 includes a rotating adjustment component 31, a support component 32, a nut 33, and a ball joint 34. The support component 32 has a threaded hole and an external thread on its outer wall. The rotating adjustment component 31 is rotatably connected to the support component 32 through the threaded hole. One end of the nut 33 is rotatably connected to the support component 32 through the external thread, and the other end of the nut 33 is rotatably connected to the ball joint 34. Specifically, the rotating adjustment component 31 and the nut 33 are located on both sides of the support component 32, with the threaded hole passing through. The rotating assembly 3 passes through the threaded hole and the nut 33 and abuts against the ball joint 34. In use, one hand loosens the rotating adjustment component 31, the other hand rotates the fixed pad 4 to the appropriate position, and then the rotating adjustment component 31 is tightened to adjust the angle of the fixed pad 4. This design allows for 360-degree rotation of the fixed pad 4 and is easy to operate.

[0038] In an optional implementation, see Figure 5 The ball joint 34 includes a ball 341 and a connecting rod 342. The ball 341 is rotatably connected to the nut 33, and the end of the connecting rod 342 is connected to the fixing pad 4.

[0039] In an optional embodiment, the fixing pad 4 is arc-shaped; the arc-shaped design of the fixing pad 4 makes it fit the front and back sides of the patient's body better, resulting in a better fixing effect.

[0040] Working principle: This utility model discloses a medical lateral decubitus pelvic fixation device. In use, first, the bottom end of the fixation frame 1 is fixed to the front and rear sides of the operating table frame of the patient using clips. Then, the rocker arm 211 is rotated to move the sliding block 233 on the screw rod 232, adjusting the front and rear position of the fixing pad 4 so that the fixing pad 4 contacts the front and rear sides of the patient. Finally, the rotating adjustment piece 31 is loosened, and the fixing pad 4 is rotated to a suitable position so that the fixing pad 4 fits more closely to the front and rear sides of the patient. The rotating adjustment piece 31 is then tightened to complete the adjustment and fixation of the fixation device. In specific use, two fixation devices are required at the same time, one supporting the pubic symphysis of the patient from the front and the other supporting the sacrococcygeal region of the patient from the rear, so that the patient's body is kept in a lateral decubitus position.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A medical lateral decubitus pelvic fixation device, characterized in that, It includes a fixed frame (1), a sliding assembly (2), a rotating assembly (3), and a fixed pad (4); one end of the fixed frame (1) is connected to the edge of the operating table, and the other end is connected to the sliding assembly (2). The rotating assembly (3) is slidably connected to the sliding assembly (2), and the fixed pad (4) is fixedly connected to the end of the rotating assembly (3). The rotating assembly (3) is used to adjust the angle of the fixed pad (4). The sliding assembly (2) includes a rotating device (21), a sliding sleeve (22) and a sliding inner core (23). The rotating device (21) is connected to one end of the sliding inner core (23), and the sliding inner core (23) is located inside the sliding sleeve (22). The rotating assembly (3) includes a rotating adjustment component (31), a support component (32), a nut (33), and a ball joint (34). The support component (32) has a threaded hole and an external thread on its outer wall. The rotating adjustment component (31) is rotatably connected to the support component (32) through the threaded hole. One end of the nut (33) is rotatably connected to the support component (32) through the external thread, and the other end of the nut (33) is rotatably connected to the ball joint (34).

2. The medical lateral decubitus pelvic fixator according to claim 1, characterized in that, The rotating device (21) includes a rocker arm (211) and a connecting block (212). One end of the connecting block (212) is connected to the end of the sliding inner core (23), and the other end is bolted to the rocker arm (211).

3. A medical lateral decubitus pelvic fixator according to claim 1, characterized in that, The sliding inner core (23) includes a bearing (231), a lead screw (232) and a sliding block (233). The bearing (231) is disposed at both ends of the lead screw (232), and the sliding block (233) is slidably connected to the lead screw (232).

4. A medical lateral decubitus pelvic fixator according to claim 3, characterized in that, A bushing (5) is provided on the fixed frame (1), and the sliding sleeve (22) is connected inside the bushing (5).

5. A medical lateral decubitus pelvic fixator according to claim 4, characterized in that, The bearing (231), sliding sleeve (22) and bushing (5) are all provided with threaded holes, and screws pass through the threaded holes to fix the bearing (231), sliding sleeve (22) and bushing (5) together.

6. A medical lateral decubitus pelvic fixator according to claim 1, characterized in that, The sliding sleeve (22) is provided with a sliding groove (6), and a stop ring (7) is provided at the end of the sliding groove (6).

7. A medical lateral decubitus pelvic fixator according to claim 1, characterized in that, The ball joint (34) includes a ball (341) and a connecting rod (342), the ball (341) being rotatably connected to a nut (33), and the end of the connecting rod (342) being connected to the fixing pad (4).

8. A medical lateral decubitus pelvic fixator according to claim 1, characterized in that, The fixing pad (4) is arc-shaped.

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