Distraction device for lumbar surgery
By introducing anti-slippage and easy-opening devices into the lumbar spine surgical retractor, and using structures such as locking strips, splints, locking blocks, and springs to achieve self-locking fixation, the problem of retractor slippage is solved, ensuring the stability of the retractor and improving surgical efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2026-03-06
AI Technical Summary
Existing lumbar spine surgical retractors are easily accidentally activated after being opened, which can prevent the lumbar spine from being effectively retracted and affect the surgical procedure.
A lumbar spine surgery dislocation device was designed, which adopts an anti-slipping device and a convenient dislocation device. The dislocation device is self-locking and fixed by means of a locking bar, a clamp, a locking block, a spring, etc., to prevent slippage. The dislocation rod is fixed by means of a thread and a threaded groove structure to avoid slippage.
It effectively prevents the spreader from slipping and dislodging, ensuring the stability of the spreader during lumbar spine surgery and improving the reliability and efficiency of the surgical procedure.
Smart Images
Figure CN223969128U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of lumbar spine surgery dispersive devices, and more particularly to a lumbar spine surgery dispersive device. Background Technology
[0002] Retractors, also known as tissue retractors, are used to retract tissue and expose the surgical area, facilitating exploration and manipulation. They can be divided into handheld retractors and automatic retractors. They are available in various shapes and sizes, allowing for the selection of the appropriate retractor based on surgical needs.
[0003] The inventors discovered during routine use of the traction device that, when opened, the traction device is usually limited by a locking strip and a hook. This could lead to the traction device being accidentally activated during use, preventing it from opening properly and causing adverse effects. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a dispersing device for lumbar spine surgery.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a lumbar spine surgery opening device, including an opening device, a retainer, a retainer with a retaining strip rotatably connected to the side of the opening device, a convenient opening device provided on the side of the opening device, an anti-dislodgement device provided on the side of the opening device, the anti-dislodgement device including a retainer fixedly connected to a rectangular plate, a clamping plate rotatably connected to the side of the rectangular plate, and a retaining block fixedly connected to the side of the opening device.
[0006] The effect achieved by the above components is that, under the action of the splint and the locking block, the spreader will not slip after being locked. When the spreader is needed, the spreader is closed and placed at the position where the lumbar spine needs to be opened. After opening to the appropriate angle, the spreader is locked by the locking strip, and then the lumbar spine surgery can be performed.
[0007] Preferably, a locking rod is inserted into the side of the rectangular plate, and one end of the locking rod is inserted into the interior of the clamping plate.
[0008] The effect achieved by the above components is that, under the action of the lever, the clamping plate can be rotated to a suitable position and then fixed.
[0009] Preferably, a round strip is fixedly connected to the side of the card strip, and a rubber strip is fixedly connected to one end of the clamping plate.
[0010] The effect achieved by the above components is that, under the action of the round strip and the rubber strip, the locking strip can be locked between the clamp and the spreader.
[0011] Preferably, a spring is sleeved on the surface of the clamp rod, and the spring is fixedly connected to one end of the clamp rod on the side of the rectangular plate.
[0012] The effect achieved by the above components is as follows: under the action of the spring, the locking rod is inserted into the interior of the clamping plate in a self-locking state. When the spreader is used, after the spreader is opened to a suitable angle and restricted by the locking strip, the clamping plate is rotated on the side of the rectangular plate and locked into the interior of the locking block. Under the action of the round strip and the rubber strip, the locking strip can be locked between the clamping plate and the spreader. Under the action of the spring, the locking rod is inserted into the interior of the clamping plate in a self-locking state, thereby achieving the function of preventing it from falling off.
[0013] Preferably, the convenient spreading device includes a circular groove formed on the side of the spreader, a spreading rod inserted inside the circular groove, a threaded groove formed on the inner wall of the circular groove, and a threaded connection fixedly connected to the surface of the spreading rod.
[0014] The effect achieved by the above components is that, under the action of the threads and grooves, the support rod is fixed inside the circular groove, thereby achieving the function of fixation.
[0015] Preferably, the inner wall of the circular groove is provided with a groove, and a circular plate is fixedly connected to the surface of the supporting rod.
[0016] The effect achieved by the above components is that, under the action of the circular plate, the supporting rod can be inserted into the interior of the circular groove for limiting.
[0017] Preferably, a rectangular strip, which is a rubber strip, is fixedly connected to the surface of the support rod.
[0018] The effect achieved by the above components is that, under the action of the rectangular bars, the supporting rod will not slip.
[0019] Preferably, a locking rod is inserted into the surface of the circular plate, and the locking rod is inserted into the inner wall of the groove.
[0020] The effect achieved by the above components is as follows: under the action of the locking rod, the dilatation rod can be fixed inside the circular groove. When the dilatation device needs to be used, if the wound is small, the dilatation rod is fixed inside the circular groove by the thread and the screw groove. Under the action of the locking rod, the dilatation rod can be fixed inside the circular groove. Under the action of the rectangular bar, the dilatation rod will not slip, so that the dilatation device will not affect the doctor's operation, thus achieving the effect of facilitating dilatation.
[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0022] In this invention, by setting an anti-dislodgement device, when the spreader is used, after the spreader is opened to a suitable angle and restricted by the locking strip, the clamp plate is rotated on the side of the rectangular plate and locked into the inside of the locking block. Under the action of the round strip and the rubber strip, the locking strip can be locked between the clamp plate and the spreader. Under the action of the spring, the locking rod is inserted into the inside of the clamp plate in a self-locking state, thereby achieving the anti-dislodgement function and solving the problem that the spreader cannot be opened and thus cannot be used to spread the lumbar spine. Attached Figure Description
[0023] Figure 1 This utility model provides a three-dimensional structural diagram of a dispersing device for lumbar spine surgery;
[0024] Figure 2 This utility model provides a schematic diagram of an anti-dislodgement device for a lumbar spine surgery dislocation device;
[0025] Figure 3 This utility model provides a schematic diagram of a convenient dispersing device for lumbar spine surgery.
[0026] Legend: 1. Spreader; 2. Anti-detachment device; 21. Rectangular plate; 22. Clamping plate; 23. Locking rod; 24. Spring; 25. Locking block; 26. Rubber strip; 27. Round strip; 3. Convenient spreading device; 31. Round groove; 32. Threaded groove; 33. Round plate; 34. Thread; 35. Spreading rod; 36. Rectangular strip; 37. Locking rod; 4. Locking strip. Detailed Implementation
[0027] Example 1, such as Figure 1-3 As shown, a lumbar spine surgery dislocation device includes a dislocation device 1, a locking strip 4 rotatably connected to the side of the dislocation device 1, a convenient dislocation device 3 provided on the side of the dislocation device 1, and an anti-dislodgement device 2 provided on the side of the dislocation device 1. When the dislocation device 1 needs to be used, the dislocation device 1 is closed, placed at the position of the lumbar spine that needs to be dislocated, and after being dislocated to a suitable angle, the dislocation device 1 is locked by the locking strip 4, thereby performing lumbar spine surgery.
[0028] Reference Figure 2The anti-dislodgement device 2 includes a rectangular plate 21 fixedly connected to a clamping plate 22 rotatably connected to the side of the rectangular plate 21, and a locking block 25 fixedly connected to the side of the spreader 1. Under the action of the clamping plate 22 and the locking block 25, the spreader 1 is locked in place and will not slip. When the spreader 1 needs to be used, it is closed and placed at the position where the lumbar spine needs to be spread. After being spread to a suitable angle, the spreader 1 is locked by the locking strip 4, thus allowing the lumbar spine surgery to be performed. A locking rod 23 is inserted into the side of the rectangular plate 21, with one end of the locking rod 23 inserted into the interior of the clamping plate 22. Under the action of the locking rod 23, the clamping plate 22 can be fixed after rotating to a suitable position. A round strip 27 is fixedly connected to the side of the locking strip 4, and a rubber strip is fixedly connected to one end of the clamping plate 22. 26. Under the action of the round bar 27 and the rubber strip 26, the locking bar 4 can be locked between the clamping plate 22 and the spreader 1. The surface of the locking rod 23 is fitted with a spring 24. The ends of the spring 24 are fixedly connected to the side of the rectangular plate 21 and one end of the locking rod 23. Under the action of the spring 24, the locking rod 23 is inserted into the interior of the clamping plate 22 in a self-locking manner. When the spreader 1 is used, after the spreader 1 is opened to a suitable angle and restricted by the locking bar 4, the clamping plate 22 is rotated on the side of the rectangular plate 21 and locked into the interior of the locking block 25. Under the action of the round bar 27 and the rubber strip 26, the locking bar 4 can be locked between the clamping plate 22 and the spreader 1. Under the action of the spring 24, the locking rod 23 is inserted into the interior of the clamping plate 22 in a self-locking manner, thereby achieving the function of preventing detachment.
[0029] Reference Figure 3 The convenient opening device 3 includes a circular groove 31 on the side of the opener 1, into which an opening rod 35 is inserted. A threaded groove 32 is formed on the inner wall of the circular groove 31, and a threaded thread 34 is fixedly connected to the surface of the opening rod 35. Under the action of the threaded thread 34 and the threaded groove 32, the opening rod 35 is fixed inside the circular groove 31, thus achieving a fixing function. A groove is formed on the inner wall of the circular groove 31, and a circular plate 33 is fixedly connected to the surface of the opening rod 35. Under the action of the circular plate 33, the opening rod 35 can be inserted into the circular groove 31 for limiting. A rectangular strip 36, which is a rubber strip 26, is fixedly connected to the surface of the opening rod 35. Under the action of the rectangular bar 36, the spreading rod 35 will not slip. A locking rod 37 is inserted into the surface of the circular plate 33. The locking rod 37 is inserted into the inner wall of the groove. Under the action of the locking rod 37, the spreading rod 35 can be fixed inside the circular groove 31. When the spreader 1 is needed, if the wound is small, the spreading rod 35 is fixed inside the circular groove 31 by the thread 34 and the threaded groove 32. Under the action of the locking rod 37, the spreading rod 35 can be fixed inside the circular groove 31. Under the action of the rectangular bar 36, the spreading rod 35 will not slip, so that the spreader 1 will not affect the doctor's operation, thus achieving the function of facilitating the spreading.
[0030] Working principle: When a lumbar spine surgery distraction device is needed, distractor 1 is closed and placed at the position where the lumbar spine needs to be distracted. After being distracted to a suitable angle, distractor 1 is secured by the locking strip 4, allowing for lumbar spine surgery. When distractor 1 is used, after it is distracted to a suitable angle and restricted by the locking strip 4, the splint 22 is rotated on the side of the rectangular plate 21 and inserted into the locking block 25. Under the action of the round strip 27 and the rubber strip 26, the locking strip 4 can be secured between the splint 22 and the distractor 1. During this time, under the action of spring 24, the locking rod 23 is inserted into the interior of the clamp 22 in a self-locking manner, thereby achieving the function of preventing detachment. When it is necessary to use the retractor 1, if the wound is small, the retractor 35 is fixed inside the circular groove 31 by the thread 34 and the threaded groove 32. Under the action of the locking rod 37, the retractor 35 can be fixed inside the circular groove 31. Under the action of the rectangular bar 36, the retractor 35 will not slip, so that the retractor 1 will not affect the doctor's operation, thereby achieving the function of facilitating the retraction.
Claims
1. A distraction device for lumbar surgery comprising a distractor (1), characterised in that: The side of the expander (1) is rotationally connected with the clamping strip (4), the side of the expander (1) is provided with the convenient expander (3), the side of the expander (1) is provided with the anti-off device (2), the anti-off device (2) comprises the fixed connection in the rectangular plate (21), the side of the rectangular plate (21) is rotationally connected with the clamping plate (22), the side of the expander (1) is fixedly connected with the clamping block (25).
2. The distraction device for lumbar surgery of claim 1, wherein: The side of the rectangular plate (21) is inserted with the clamping rod (23), one end of the clamping rod (23) is inserted into the inside of the clamping plate (22).
3. The distraction device for lumbar surgery of claim 2, wherein: The side of the clamping strip (4) is fixedly connected with the round strip (27), one end of the clamping plate (22) is fixedly connected with the rubber strip (26).
4. The distraction device for lumbar surgery of claim 3, wherein: The surface of the clamping rod (23) is provided with the spring (24), the spring (24) flows to the side of the rectangular plate (21) and the fixed connection of one end of the clamping rod (23) respectively.
5. The distraction device for lumbar surgery of claim 4, wherein: The convenient expander (3) comprises the circular groove (31) opened in the side of the expander (1), the inside of the circular groove (31) is inserted with the expander rod (35), the inner wall of the circular groove (31) is opened with the screw groove (32), the surface of the expander rod (35) is fixedly connected with the screw thread (34).
6. The distraction device for lumbar surgery of claim 5, wherein: The inner wall of the circular groove (31) is opened with the recess, the surface of the expander rod (35) is fixedly connected with the circular plate (33).
7. The distraction device for lumbar surgery of claim 6, wherein: The surface of the expander rod (35) is fixedly connected with the rectangular strip (36), the rectangular strip (36) is the rubber strip (26).
8. The distraction device for lumbar surgery of claim 7, wherein: The surface of the circular plate (33) is inserted with the clamping rod (37), the clamping rod (37) is inserted into the inner wall of the recess.