Bar nailing system with sleeve tensioning rope and detachable end block
By designing a rod-and-pin system with sleeve tensioning cords and detachable end blocks, the problems of spinal fixation stiffness and pain caused by traditional rod-and-pin systems are solved, achieving flexible spinal movement and stability, and providing a support effect that combines rigidity and flexibility.
Patent Information
- Application Number
- CN202422822343.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2034-11-19
AI Technical Summary
Traditional rod and screw systems result in permanent fixation of the spinal joints during spinal surgery, restricting normal range of motion, affecting patients' quality of life, and posing risks of stiffness and pain.
Design a spiked bar system with a sleeve tensioning rope and detachable end blocks, including a rope, elastic buffer, fixing bolt assembly, coupler, and bar, which provides range of motion and flexible support through the combination of elastic composition and tensioning rope, allowing for a certain degree of bending and torsional movement.
It enables flexible spinal movement, protects the natural movement of the spine, provides sufficient fatigue strength and appropriate stretching elasticity to ensure spinal stability, and has a balance of rigidity and flexibility to reduce stiffness and pain.
Smart Images
Figure CN223799824U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of bone implant, relate to a kind of nail rod system with sleeve tensioning rope and detachable end block. BACKGROUND
[0002] Nail rod system is a kind of internal fixation technology for spinal surgery, mainly used for treating spinal diseases, such as spinal fracture, spinal deformity, degenerative spinal disease, etc. However, the traditional nail rod system has some limitations and risks in spinal surgery. The traditional nail rod system may cause one or more permanent fixation of spinal joints, which may limit the normal range of motion of the spine and affect the long-term quality of life of the patient. Due to the permanent fixation of the spinal joints, the patient may experience more stiffness and pain, especially during daily activities that require spinal flexibility.
[0003] Therefore, in order to solve the problems in the prior art, a nail rod system with sleeve tensioning rope and detachable end block is needed, which has a simple structure. SUMMARY
[0004] The utility model discloses a kind of nail rod system with sleeve tensioning rope and detachable end block to solve the problems of prior art.
[0005] The utility model discloses a kind of nail rod system with sleeve tensioning rope and detachable end block, including: rope choke, elastic buffer, rope, elastic composition, fixed bolt assembly, coupler and rod, the right end of the rope is connected coupler, the left end of the rod is connected coupler, the fixed bolt assembly is fixedly sleeved on the rope and rod with interval, the elastic buffer and the rope choke are sequentially fixed to the left end of the rope, the elastic composition includes inner partition, outer partition and elastic compensator, the inner partition is sleeved on the outside of the rope, the outer partition is sleeved on the outside of the inner partition, the fixed bolt assembly includes gasket sleeve, nut, bolt and fixed screw, the gasket sleeve is sleeved on the rope, the nut is connected on the upper end of gasket sleeve, the bolt is connected on the upper end of nut, the fixed screw is connected on the lower end of gasket sleeve, the left end of the elastic compensator is connected with the right end of the outer partition, and the right end of the elastic compensator is connected with the left end of the gasket sleeve.
[0006] Further improvement, the upper end of the fixed screw is connected with a ball head, the ball head is connected with a sliding block in ball cooperation, and the sliding block is connected with a fixed nail composition.
[0007] Further improvement, a tension sensor is arranged inside the rope.
[0008] Further improvement, the left end of the rod is connected into the port of the coupler through thread, and the upper end of the coupler is connected with a gasket.
[0009] Further improvement, the elastic compensator bottom is provided with anti-skid teeth contacting the rope.
[0010] Further improvement, the elastic compensator is internally provided with a spring.
[0011] Further improvement, the bolt is internally provided with an opening.
[0012] Compared with the prior art, the nail rod system with the sleeve tensioning rope and the detachable end block has the beneficial effects that:
[0013] The rope can provide a certain range of movement after being fixed, the elastic composition composed of the outer partition plate and the inner partition plate can be replaced with different models to adapt to different sizes of the spine, the elastic composition cooperates with the tensioned rope, and the elastic compensator serves as a movable fulcrum to provide a certain range of bending movement, which is more flexible and more durable, and can effectively protect the rope. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 It is a structural schematic view of the utility model
[0015] Fig. 2 It is a structural schematic view of the utility model local position one
[0016] Fig. 3 It is a structural schematic view of the utility model local position two
[0017] In the figure, 1 is a nut, 2 is an outer partition plate, 3 is an elastic buffer, 4 is a bolt, 5 is a rope stopper, 6 is a rope, 8 is a gasket sleeve, 9 is an opening, 11 is a gasket, 12 is a coupler, 14 is a port, 16 is a fixing screw, 17 is a rod, 18 is an elastic compensator, 19 is a spring, 20 is a sliding block, 21 is a fixed nail composition, 22 is a ball head, 23 is an anti-skid tooth, 24 is an inner partition plate, and 25 is a tension and pressure sensor. DETAILED DESCRIPTION
[0018] In the description of the utility model, it should be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0019] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, the term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.
[0020] The following will be described in conjunction with the embodiments and the drawings Figs. 1-3 The technical scheme of the utility model is further described.
[0021] Example 1
[0022] A kind of sleeve tensioning rope and detachable end block's rod and nail system, comprising: rope blocker 5, elastic buffer 3, rope 6, elastic composition, fixed bolt assembly, coupler 12 and rod 17, the right end of the rope 6 is connected coupler 12, the left end of the rod 17 is connected coupler 12, the fixed bolt assembly is spaced and fixedly sleeved on the rope 6 and rod 17, the elastic buffer 3 and the rope blocker 5 are sequentially fixed to the left end of the rope 6, the elastic composition includes inner partition 24, outer partition 2 and elastic compensator 18, the inner partition 24 is sleeved on the outside of the rope 6, the outer partition 2 is sleeved on the outside of the inner partition 24, the fixed bolt assembly includes gasket sleeve 8, nut 1, bolt 4 and fixed screw 16, the gasket sleeve 8 is sleeved on the rope 6, the nut 1 is connected on the upper end of gasket sleeve 8, the bolt 4 is connected on the upper end of nut 1, the fixed screw 16 is connected on the lower end of gasket sleeve 8, the left end of the elastic compensator 18 is connected with the right end of the outer partition 2, and the right end of the elastic compensator 18 is connected with the left end of the gasket sleeve 8.
[0023] As Figs. 1-3 As shown in the application, the elastic composition is used as an adaptive assembly, has elasticity and variable longitudinal length to adapt to different cases; the rope 6 is a flexible assembly, and the rope blocker 5 cooperates with the bolt on the rope blocker 5 to serve as a device for fixing the rope 6; the gasket sleeve 8 is fixed by the threaded connection of the nut 1 and the bolt 4, the rope 6 is in the gasket sleeve 8, and the gasket sleeve 8 cooperates with the elastic composition through gapless cooperation to provide a stable structure;
[0024] The outer partition 2 is an elastic body, which is harder and has lower compressibility than the elastic buffer 3, and the inner partition 24 is a non-elastic body, which provides a protective shell for the rope 6, so that the rod and nail fixing system has rigidity and flexibility; the double-layer structure not only provides a rigid and flexible protective cover for the rope, but also improves the stability of the rod and nail fixing system, and the existence of the elastic compensator 18 can provide certain support for the downward or upward movement of the rod and nail system, effectively absorb the bending stress of the rod and nail in the vertical direction and improve the durability of the system.
[0025] Compared with the prior art, the present application has the advantages of:
[0026] The rope can provide a certain range of movement after being fixed, the elastic composition composed of the outer partition plate and the inner partition plate can be replaced with different models to adapt to different sizes of the spine, the elastic composition cooperates with the tensioned rope to provide a certain range of bending movement more flexible and more durable, and can effectively protect the rope. In order to improve the protection of the reinforcing shell while taking into account the flexibility of the system, the combination of the outer partition plate and the inner partition plate has achieved the effect of rigidity and flexibility, and the compressed elastic buffer can provide tension and compression functions for the tensioned rope. And a certain range of twisting and relative rotation is allowed between the outer partition plate and the inner partition plate to provide a certain relief to the torsional stress.
[0027] As a further preferred embodiment, the upper end of the fixing screw 16 is connected with a ball head 22, the ball head 22 is connected with a sliding block 20 in a ball cooperation, the sliding block 20 is connected with a fixing nail composition 21, and the ball head 22 and the sliding block 20 have a movable gap therebetween. The sliding block serves as a fixed end, and the ball head serves as a movable end, so that the fixing screw has a certain range of movement.
[0028] As a further preferred embodiment, the rope 6 is provided with a tension sensor 25 inside, and the data collected by the tension sensor 25 inside the nail rod system is transmitted to a signal receiver through wireless transmission to detect the stress condition of the spine movement.
[0029] As a further preferred embodiment, the left end of the rod 17 is connected to the port 14 of the coupler 12 through a threaded connection, and the upper end of the coupler 12 is connected with a gasket 11.
[0030] As a further preferred embodiment, the elastic compensator 18 is provided with an anti-slip tooth 23 at the bottom to contact the rope 6, which improves the connection stability of the position of the elastic compensator 18 and the rope 6.
[0031] As a further preferred embodiment, the elastic compensator 18 is provided with a spring 19 inside to allow the nail rod to bend in the vertical direction on both sides.
[0032] As a further preferred embodiment, the bolt 4 is provided with an opening 9 inside. The opening 9 can be equipped with a screw by the doctor to limit or allow the rope 6 to slide relative to the gasket sleeve 8, thereby changing the rigidity of different line segments of the rope 6.
[0033] In summary, the present application provides spinal stability and protects its natural movement without the need for fusion surgery, the system has sufficient fatigue strength and appropriate tensile elasticity to adapt to the movement of the spine under complex dynamic conditions, to ensure that the stability effect is achieved without sacrificing the natural function of the spine, and the structure has rigidity to protect the movement of the spine and flexibility to support the movement of the spine.
[0034] The preferred embodiments of the present application are described in detail above. It should be understood that those skilled in the art can make many modifications and changes without creative labor according to the concept of the present application. Therefore, any technical solution obtained by logical analysis, reasoning or limited experiment on the basis of the existing technology according to the concept of the present application shall be within the protection scope determined by the claims.
Claims
1. A rod and pin system with a sleeve tensioned cable and a detachable end block, characterized in that, It includes a rope stopper, an elastic buffer, a rope, an elastic composition, a fixing bolt assembly, a coupler and a stick, the right end of the rope is connected with the coupler, the left end of the stick is connected with the coupler, the fixing bolt assembly is fixed on the rope and the stick at intervals, the elastic buffer and the rope stopper are fixed on the left end of the rope in sequence, the elastic composition includes an inner partition, an outer partition and an elastic compensator, the inner partition is sleeved on the outside of the rope, the outer partition is sleeved on the outside of the inner partition, the fixing bolt assembly includes a gasket sleeve, a nut, a bolt and a fixing screw, the gasket sleeve is sleeved on the rope, the nut is connected with the upper end of the gasket sleeve, the bolt is connected with the upper end of the nut, the fixing screw is connected with the lower end of the gasket sleeve, the left end of the elastic compensator is connected with the right end of the outer partition, and the right end of the elastic compensator is connected with the left end of the gasket sleeve. The upper end of the fixing screw is connected with a ball head, the ball head is connected with a sliding block in a ball fitting mode, and the sliding block is connected with a fixing nail composition.
2. A cable and detachable end block system with sleeve tensioning according to claim 1, characterized in that, The rope is internally provided with a tension sensor.
3. A cable and detachable end block system with sleeve tensioning according to claim 1, characterized in that, The left end of the stick is connected into the port of the coupler through a threaded connection, and the upper end of the coupler is connected with a gasket.
4. The cable and detachable end block system with sleeve tensioning according to claim 1, wherein, The bottom of the elastic compensator is provided with anti-skid teeth in contact with the rope.
5. A cable and detachable end block system with sleeve tensioning according to claim 1, characterized in that, The elastic compensator is internally provided with a spring.
6. A cable and detachable end block system with a sleeve tensioner as claimed in claim 1, wherein, The bolt is internally provided with an opening.
7. A cable and detachable end block system with sleeve tensioning according to claim 1, characterized in that,