Auxiliary fixer for cone plate drag hook
By designing a conical plate hook auxiliary fixator and adopting a ratchet and pawl locking mechanism, the flexible fixation and firmness of the conical plate hook are achieved, solving the problems of inconvenient adjustment and insufficient firmness of existing devices, and improving the convenience and safety of surgical operations.
Patent Information
- Application Number
- CN202422952333.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-02
AI Technical Summary
The existing cone plate hook fixing device cannot be easily adjusted for tightness, and its firmness is insufficient, resulting in inconvenience in use and unstable fixation.
A conical plate hook-assisted fixation device was designed, comprising a conical plate snap-fit device, a ratchet device, and a wiring system. The automatic retraction and extension of the fixing wire is achieved through the snap-fit mechanism of the ratchet and pawl, allowing for flexible adjustment of the wire length. The wire is fixed to the operating table by a magnetic block to ensure that it does not fall off.
It achieves flexible length adjustment and secure fasteners, preventing the fasteners from falling off and springing back, thus improving ease of use and safety.
Smart Images
Figure CN223759833U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a conical plate pull hook auxiliary fixation device. Background Technology
[0002] In orthopedic and spinal surgery, when deep tissues need to be exposed during surgery, laminectomy hooks are often used to pull apart the skin, subcutaneous tissue, and paravertebral muscles. Tightening the hooks and hanging them on the horizontal bar on the lower side of the operating table can relieve the fatigue of assistants pulling with their hands for a long time.
[0003] In conventional use, one method involves hooking the tip of the lamina catcher against the transverse process, lamina, or other bone tissue, while an assistant needs to pull the catcher down to secure the tail end. Another method involves tying a rope or bandage to the outer end of the catcher, with the other end secured using a weight or by stepping on it. Existing catcher-assisted fixation devices lack easy tension adjustment and are not sufficiently secure.
[0004] How to provide a cone plate pull hook auxiliary fixation device is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a cone plate hook auxiliary fixation device.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a conical plate hook auxiliary fixing device, comprising: a conical plate clamping device, the conical plate clamping device including a conical plate clamp and a wire fixing block, the wire fixing block being fixedly connected to one side wall of the conical plate clamp, a square through hole being formed on the top surface of the conical plate clamp, and a circular through hole being formed on the wire fixing block; a ratchet device; and a protective box, the protective box including a housing, a wire reel, a pawl shaft, and a ratchet shaft, the housing being fixedly connected to the other side wall of the conical plate clamp, the inner wall of the housing having a first fixing surface and a second fixing surface, the first fixing surface and the second fixing surface being parallel to each other, both the first fixing surface and the second fixing surface being perpendicular to the side wall of the conical plate clamp, and one end of the pawl shaft being connected to... One end of each ratchet shaft is movably connected to the first fixed surface, and the other end of each ratchet shaft is movably connected to the second fixed surface. A pawl through hole is provided on the second fixed surface, and the other end of the pawl shaft passes through the pawl through hole. The thread reel is disposed on the ratchet shaft. The ratchet device includes a pawl and a ratchet. The pawl is sleeved on the pawl shaft, and the ratchet is sleeved on the ratchet shaft. The pawl and the ratchet match. The thread reel is disposed on the ratchet shaft and located between the second fixed surface and the ratchet. The circuit includes a fixed wire and a magnetic block. One end of the fixed wire is fixedly connected to the thread reel. A wire outlet hole is provided on the housing. The other end of the fixed wire passes through the wire outlet hole and the circular through hole in sequence and is fixedly connected to the magnetic block.
[0007] Optionally, the tapered plate hook auxiliary retainer further includes a torsion spring, which is sleeved on the ratchet shaft, with one end of the torsion spring fixedly connected to the ratchet shaft and the other end of the torsion spring fixedly connected to the second fixing surface.
[0008] Optionally, the protective box also includes a knob, which is fitted onto the other end of the pawl shaft.
[0009] Optionally, the conical plate clamping device further includes a square flexible ring, which is disposed inside the square through hole.
[0010] Optionally, the protective box further includes a limiting piece, which is fixedly connected to the ratchet shaft and presses against the second fixing surface.
[0011] Optionally, the fixing line is made of nylon material.
[0012] Optionally, the line fixing block is also provided with a hook.
[0013] Optionally, the pawl axis is parallel to the axis of the ratchet axis.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This application provides a conical plate retractor-assisted fixation device, including a conical plate clamping device, a ratchet device, a protective box, and wiring. During surgery, after exposing deep tissues using a conical plate retractor, the tail end of the retractor is clamped onto the conical plate clamping device. The tail end of the retractor is then clamped into a square through-hole. Next, the magnetic block on the wiring is pulled to extend the fixation wire to the appropriate clamping position. The magnetic block and the fixation wire are then passed through the circular through-hole of the wiring fixation block. After adjusting to the required wiring length, the magnetic block is then... When the wire is suctioned onto the operating table or other suitable location, it will not come loose or spring back due to the engagement of the ratchet and pawl when pulled out. To retract the wire, rotate the pawl shaft to separate the pawl from the ratchet, then rotate the ratchet shaft to automatically retract the spool fixed on the ratchet, thus storing the wire in the spool. This device allows for flexible adjustment of the wire length according to the user's needs, solving problems such as inconvenient tension adjustment and insufficient stability in conventional use. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Legend:
[0018] Figure 1 This is a schematic diagram of the internal structure of the present invention;
[0019] Figure 2 This is a schematic diagram of the external structure of this utility model;
[0020] Figure 3 A schematic diagram of the external structure of the assembled circuit.
[0021] In the diagram: 1. Conical plate clamping device; 11. Conical plate clamping device; 111. Square through hole; 12. Line fixing block; 121. Circular through hole; 2. Ratchet device; 21. Ratchet; 22. Pawl; 3. Protective box; 31. Housing; 311. Cable outlet hole; 32. Wire wheel; 33. Pawl shaft; 34. Ratchet shaft; 4. Line; 41. Fixing wire; 42. Magnetic block; 5. Torsion spring; 6. Knob. Detailed Implementation
[0022] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0023] It will be understood that although the terms “first,” “second,” “third,” “fourth,” etc., may be used here to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another.
[0024] Example 1
[0025] Combination Figures 1-3 As shown, an embodiment of the present invention provides a tapered plate hook auxiliary fixing device, comprising: a tapered plate clamping device 1, which includes a tapered plate clamp 11 and a wire fixing block 12, the wire fixing block 12 being fixedly connected to one side wall of the tapered plate clamp 11; a square through hole 111 being formed on the top surface of the tapered plate clamp 11; and a circular through hole being formed on the wire fixing block 12; and a protective box 3, which includes a housing 31, a wire wheel 32, a pawl shaft 33, and a ratchet shaft 34, the housing 31 being fixedly connected to the other side wall of the tapered plate clamp 11; the inner wall of the housing 31 having a first fixing surface and a second fixing surface, the first fixing surface and the second fixing surface being parallel to each other; both the first fixing surface and the second fixing surface being perpendicular to the side wall of the tapered plate clamp 11; and one end of the pawl 22 being connected to the ratchet shaft 34. One end of each component is movably connected to the first fixed surface, and the other end of the ratchet shaft 34 is movably connected to the second fixed surface. A pawl through hole is provided on the second fixed surface, and the other end of the pawl shaft 33 passes through the pawl through hole. The thread wheel 32 is mounted on the ratchet shaft 34. The ratchet device 2 includes a pawl 22 and a ratchet 21. The pawl 22 is sleeved on the pawl shaft 33, and the ratchet 21 is sleeved on the ratchet shaft 34. The pawl 22 and the ratchet 21 are matched. The thread wheel 32 is located between the second fixed surface and the ratchet 21. The line 4 includes a fixed line 41 and a magnetic block 42. One end of the fixed line 41 is fixedly connected to the thread wheel 32. A wire outlet hole 311 is provided on the housing 31. The other end of the fixed line 41 passes through the wire outlet hole 311 and the circular through hole 121 in sequence and is fixedly connected to the magnetic block.
[0026] Specifically, this application provides a laminar retractor-assisted fixation device, including a laminar retractor 1, a ratchet device 2, a protective box 3, and a circuit 4. During surgery, after exposing deep tissues using the laminar retractor, the tail end of the laminar retractor is engaged with the laminar retractor 11 of the laminar retractor 1. The tail end of the laminar retractor is engaged in the square through hole 111. Then, the magnetic block 42 on the circuit 4 is pulled to pull the fixation wire 41 to the appropriate engagement position. The magnetic block 42 and the fixation wire 41 are then passed through the circular through hole of the circuit fixation block 12. When the required length of the circuit 4 is adjusted, the magnetic block 42 is magnetically attached to the operating table or... In other suitable positions, when pulled out, the engagement between ratchet 21 and pawl 22 prevents the fixing line 41 from falling off and springing back. When retracting, rotating the pawl shaft 33 separates the pawl 22 from the ratchet 21. Due to the torsion spring 5 on the ratchet shaft 34, the ratchet 21 retracts automatically, and the thread reel 32 fixed on the ratchet 21 also retracts automatically, thus allowing the fixing line 41 to be drawn into the thread reel 32. This device allows for flexible adjustment of the line length 4 according to the user's needs, solving problems such as inconvenient tension adjustment and insufficient stability in conventional use.
[0027] In some possible implementations, the tapered plate hook auxiliary retainer also includes a torsion spring 5, which is sleeved on the ratchet shaft 34. One end of the torsion spring 5 is fixedly connected to the ratchet shaft 34, and the other end of the torsion spring 5 is fixedly connected to the second fixing surface.
[0028] Specifically, when the fixed line 41 is pulled out, the thread wheel 32 and ratchet 21 on the ratchet shaft 34 will rotate accordingly, and the pawl 22 will engage with the ratchet 21, thereby gradually compressing the torsion spring 5 on the ratchet shaft 34. When the fixed line 41 is retracted, the ratchet 21 and pawl 22 will separate, and the torsion spring 5 will automatically rebound under the action of elasticity, thereby driving the thread wheel 32 to retract automatically, so that the fixed line 41 is retracted, improving the convenience of use.
[0029] In some possible implementations, the protective box 3 also includes a knob 6, which is sleeved on the other end of the pawl shaft 33, and the tapered plate clamping device 1 also includes a square flexible ring, which is disposed inside the square through hole 111.
[0030] Specifically, when it is necessary to rotate the pawl shaft 33, the knob 6 is turned to drive the pawl shaft 33 to rotate. The knob 6 allows the user to adjust the position of the pawl 22 more accurately and clearly. When the tapered plate hook is in use, the tail is engaged in the square through hole 111. The square flexible ring makes the tapered plate hook less likely to fall off, making the operation safer.
[0031] In some possible implementations, the protective box 3 also includes a limiting piece, which is fixedly connected to the pawl shaft 33 and presses against the second fixing surface. The fixing line 41 is made of nylon material.
[0032] Specifically, the setting of the limiting piece allows the pawl shaft 33 to be better fixed, providing a guarantee for the cooperation between the pawl 22 and the ratchet 21. The fixing line 41 is made of nylon material, which is more durable and less prone to wear after long-term use.
[0033] In some possible implementations, the line fixing block 12 is also provided with a hook, and the pawl shaft 33 is parallel to the axis of the ratchet shaft 34.
[0034] Specifically, when not in use, the device can be hooked by a hook and can be found more quickly when needed. The parallel axes of the pawl shaft 33 and the ratchet shaft 34 make the engagement between the pawl 22 and the ratchet 21 more accurate.
[0035] Finally, it should be noted that the above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. All should be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
[0036] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.
Claims
1. A cone-plate pull-hook auxiliary fixator, characterized by, Include: The conical plate clamping device (1) includes a conical plate clamping device (11) and a line fixing block (12), the line fixing block (12) is fixedly connected on one side wall of the conical plate clamping device (11), a square through hole (111) is formed on the top surface of the conical plate clamping device (11), and a circular through hole (121) is formed on the line fixing block (12). The protection box (3) includes a shell (31), a line wheel (32), a pawl shaft (33) and a ratchet shaft (34), the shell (31) is fixedly connected on the other side wall of the conical plate clamping device (11), the inner wall of the shell (31) has a first fixed surface and a second fixed surface, the first fixed surface and the second fixed surface are parallel to each other, the first fixed surface and the second fixed surface are perpendicular to the side wall of the conical plate clamping device (11), one end of the pawl shaft (33) and one end of the ratchet shaft (34) are movably connected on the first fixed surface, the other end of the ratchet shaft (34) is movably connected on the second fixed surface, a pawl through hole is formed on the second fixed surface, the other end of the pawl shaft (33) passes through the pawl through hole, and the line wheel (32) is arranged on the ratchet shaft (34). The ratchet device (2) includes a pawl (22) and a ratchet (21), the pawl (22) is sleeved on the pawl shaft (33), the ratchet (21) is sleeved on the ratchet shaft (34), the pawl (22) is matched with the ratchet (21), and the line wheel (32) is located between the second fixed surface and the ratchet (21). The line (4) includes a fixed line (41) and a magnetic attraction block (42), one end of the fixed line (41) is fixedly connected on the line wheel (32), a wire outlet hole (311) is formed on the shell (31), and the other end of the fixed line (41) sequentially passes through the wire outlet hole (311) and the circular through hole (121) and is fixedly connected on the magnetic attraction block (42).
2. The cone-plate pull-hook auxiliary fixator according to claim 1, wherein, The conical plate pull hook auxiliary fixing device further includes a torsion spring (5), the torsion spring (5) is sleeved on the ratchet shaft (34), one end of the torsion spring (5) is fixedly connected on the ratchet shaft (34), and the other end of the torsion spring (5) is fixedly connected on the second fixed surface.
3. The cone-plate pull-hook auxiliary fixator according to claim 1, wherein, The protection box (3) further includes a knob (6), the knob (6) is sleeved on the other end of the pawl shaft (33).
4. The cone-plate pull-hook auxiliary fixator according to claim 1, wherein, The conical plate clamping device (1) further includes a square flexible ring, and the square flexible ring is arranged inside the square through hole (111).
5. The cone-plate pull-hook auxiliary fixator according to claim 1, wherein, The protection box (3) further includes a limiting piece, the limiting piece is fixedly connected on the pawl shaft (33) and abuts against the second fixed surface.
6. The cone-plate pull-hook auxiliary fixator according to claim 1, wherein, The fixed line (41) is made of nylon material.
7. The cone-plate pull-hook auxiliary fixator according to claim 1, wherein, The line fixing block (12) is further provided with a hanging buckle.
8. The cone-plate pull-hook assisted fixator of claim 1, wherein, The axis of the pawl shaft (33) and the ratchet shaft (34) is parallel.