TWM551472U - Spinal distractor - Google Patents

Description

Spine distraction device

The present invention is a distraction device, especially a spinal distraction device that treats intervertebral stenosis and intervertebral disc disease, and can withstand compression, stretching and torsion.

According to the modern human spine disease rate, there is a significant increase with the busy work and inertia posture, and the spinal diseases include: intervertebral stenosis and connective tissue abnormality of the intervertebral disc; however, these abnormalities may cause the intervertebral space to be too large or too small. Insufficient stability of the vertebrae causes adjacent vertebrae to malfunction or wear on the surface, and causes pain in the back or body of the patient. Therefore, the spinal disease often affects the living environment of the patient.

Referring to FIGS. 10-11, the conventional interspinous stabilization system includes an upper portion 60 and a lower portion 80. The upper portion 60 and the lower portion 80 respectively have a pair of lateral walls 90, and the upper portion 60, The lower portion 80 extends to form a U-shaped central portion 70; however, the central portion 70 of the existing interspinous stabilization system can only perform a compression action, has no tensile, torsional and elastic functions, and has no design of the removal system, so The interspinous stabilization system is less compatible with the behavior of human organisms and the design of post-medication treatment.

However, the conventional interspinous stabilization system can achieve initial treatment, but often because of the rigidity is too strong, resulting in fracture or loosening of the joint with the bone.

In view of this, the creators have been engaged in the manufacturing development and design of related products for many years. Based on the experience, after the detailed design and careful evaluation of the above objectives, the original creation will be practical.

The main purpose of this creation is to provide a spinal distraction device. The problem to be solved is that the conventional interspinous stabilization system can only provide compression action, without stretching and torsion functions, thereby limiting the patient's spinal activity. Sexual and multi-directional forces, so this problem needs to be improved.

The technical feature of the problem solving mainly includes a distracting device, wherein the distracting device comprises a flexible upper fixing portion, a flexible lower fixing portion, and the upper fixing portion and the lower fixing portion. Forming an elastic portion, the wall surface of the elastic portion forming a spiral groove; the upper fixing portion and the lower fixing portion respectively have a pair of clamping walls, and the opposite inner faces of the pair of clamping walls are away from the elasticity The portion is provided with at least one pointed convex portion; by the above structure, the distracting device can be implanted between two consecutive spinous processes of the vertebra, and the upper fixed portion and the lower fixed portion are respectively locked to the spinous processes of the vertebrae On the side, the distraction device supports the gap between the spinous processes of the spine.

The upper and lower end faces of the elastic portion respectively protrude from at least one of the engaging portions, and the end faces of the elastic portions extending in the longitudinal direction and adjacent to the convex portions of the engaging portions are curved.

Wherein, the elastic portion is recessed with an inner concave portion on each of two side surfaces of the curved end surface.

Wherein, a top surface of each of the pair of clamping walls protrudes from a top surface of the clamping wall.

The elastic portion has a rectangular column shape and is solid or hollow, and the bottom portion of the hollow elastic portion has a base surface or a through shape.

Wherein, each of the clamping walls is provided with a perforation.

Wherein, the opposite inner faces of each pair of clamping walls are provided with at least one micro convex portion adjacent to the elastic portion.

The advantages of this creation include: 1. The elastic portion has a flexible groove design to withstand the compression action; The elastic portion can withstand the stretching action; 3. The elastic portion can withstand the twisting action; 4. Each of the pair of clamping walls has the pointed convex portion and the micro convex portion, which can improve the stability of the two sides of the spinous process of the vertebra; The inner recess is designed to allow the tool to be implanted to prevent the tool from obstructing the operational field of view during installation; The U-shaped convex member is designed to be used as a removal structure for auxiliary medical treatment; 7. The solid portion of the elastic portion can increase the strength of the overall structure; The bottom portion of the elastic portion having the hollow shape has the base surface, and is applicable to spines of various thicknesses; The elastic portion having a penetrating shape is preferably elastic, so that the circulation of the tissue fluid is not easily accumulated to form a mass; The distraction device can treat the use of two vertebrae above, without any number of sections.

[this creation]

10‧‧‧Upper Department

20‧‧‧Under the fixed department

30‧‧‧Clamping wall

301‧‧‧Perforation

31‧‧‧Micro convex

32‧‧‧ pointed parts

34‧‧‧U-shaped convex parts

40‧‧‧Flexible Department

401‧‧‧ trench

43‧‧‧ card convex

45‧‧‧ recess

47‧‧‧Base surface

50‧‧‧Fixed parts

501‧‧‧ bolt

502‧‧‧ nuts

100‧‧‧Opening device

[study creation]

60‧‧‧ upper

70‧‧‧Central

80‧‧‧ lower

90‧‧‧ lateral wall

Figure 1 is a perspective top view of the combination of the present creation.

Figure 2 is a perspective view of the combination of the present creation.

Figure 3 is a front view of the creation.

Figure 4 is a cross-sectional view taken along line A-A of Figure 3.

Figure 5 is a right side view of the creation.

Figure 6 is a cross-sectional view taken along line B-B of Figure 5.

Figure 7 is a schematic illustration of the implementation of the implanted spine.

Figure 8 is a compressed front view of the present creation.

Figure 9 is a schematic diagram of the implementation of the disassembly of the present creation.

Figure 10 is a prior art creation view.

Figure 11 is a compressed front view of a conventional creation.

Please refer to FIG. 1 to FIG. 9 for a preferred embodiment of the present spinal distraction device. However, the embodiments are provided for illustrative purposes only, and the patent application is not limited by the structure. The distracting device 100 includes a flexible upper fixing portion 10, a flexible lower fixing portion 20, and an elastic portion 40 formed between the upper fixing portion 10 and the lower fixing portion 20. The wall surface of the elastic portion 40 forms a spiral groove 401; the upper fixing portion 10 and the lower fixing portion 20 respectively have a pair of clamping walls 30, and the opposite inner faces of the pair of clamping walls 30 are away from the The elastic portion 40 is provided with at least one pointed convex portion 32. With the above structure, the distracting device 100 can be implanted between two consecutive spinous processes of the vertebra, and the upper fixing portion 10 and the lower fixing portion 20 are respectively locked. On both sides of the spinous processes of the vertebrae, the distraction device 100 supports the gap between the spinous processes of the spine.

Referring to FIG. 2 to FIG. 6 , a U-shaped convex member 34 is protruded from a top surface of the opposite outer side of each of the pair of clamping walls 30 .

The elastic portion 40 has a rectangular cylinder and is solid (not shown) or hollow. The hollow portion of the elastic portion 40 has a base surface 47 or a through shape (not shown).

The opposite inner faces of the pair of clamping walls 30 and adjacent to the elastic portion 40 are provided with at least one micro convex portion 31, and each of the pair of micro convex portions 31 is displaceable relative to each other, and each of the pair of pointed convex portions 32 They can be displaced relative to one another.

At least one of the card convex portions 43 is respectively protruded from the upper and lower end faces of the elastic portion 40.

The end surface of the elastic portion 40 extending in the longitudinal direction and adjacent to the end surface of the convex portion 43 is curved.

Wherein, the elastic portion 40 is recessed with an inner concave portion 45 on both side surfaces of the curved end surface.

The beginning end of the groove 401 is adjacent to the top surface of the elastic portion 40, and the end portion is adjacent to the bottom surface of the elastic portion 40.

Referring to FIG. 7 and FIG. 1 , each of the clamping walls 30 is provided with a through hole 301 , and a pair of fixings 50 are fixed between the two through holes 301 . A bolt 501 and a nut 502.

In a first embodiment, when the physician or operator assists the patient in implanting the distraction device 100 in the spine of the patient, the tool is embedded in the inner recess 45 of the elastic portion 40, and the elastic portion 40 is implanted into the two spinous processes. In the gap, and tapping the tool, the distracting device 100 is completely clamped inside the two spinous processes, and the micro convex portion 31 and the convex portion 32 are firmly combined on both sides of the spinous process with two-stage clamping. A procedure of implanting the distraction device 100 is completed.

Furthermore, in the second embodiment of the present invention, when the physician or the operator assists the patient in implanting the distracting device 100 on the spine of the patient, the tool is embedded in the inner recess 45 of the elastic portion 40, and the elastic portion 40 is further engaged. Implanted into the two spinous process gaps, and tapping the tool to fully engage the distracting device 100 between the two spinous processes. The micro convex portion 31 and the pointed convex portion 32 are firmly coupled to the spine by two-stage clamping. The perforations 301 of the clamping wall 30 are pierced by the punching tools, so that the two spinous processes respectively have holes, and the fixing member 50 is correspondingly locked to the perforations. 301, or attaching a string to the perforation 301 and the spine to fix the distracting device 100, and finally completing a procedure of implanting the distracting device 100.

Referring to FIG. 8, which is a front view of the compressed body, the elastic portion 40 can withstand the forces of compression, stretching and torsion.

Referring to FIG. 9 and FIG. 7 , when the physician or the operator assists the patient to disassemble the distracting device 100 , each of the fixing members 50 is first disassembled, and each of the U-shaped protruding members 34 is pulled outward by the clamping tool. The inner concave portion 45 of the elastic portion 40 is inserted into the elastic portion 40, and the elastic portion 40 is pulled out from between the two spinous processes to finally remove the distracting device 100.

By summarizing the above description, the design of the above structure can effectively overcome the shortcomings of the new type of application, and further has the above-mentioned numerous advantages and practical value, so this creation is an innovative new creation, and in the same technology. There is no identical or similar product creation or public use in the field. Therefore, this creation has met the requirements of the novelty of "newness" and "progressiveness", and is applied according to law.

10‧‧‧Upper Department

20‧‧‧Under the fixed department

30‧‧‧Clamping wall

301‧‧‧Perforation

31‧‧‧Micro convex

32‧‧‧ pointed parts

34‧‧‧U-shaped convex parts

40‧‧‧Flexible Department

401‧‧‧ trench

43‧‧‧ card convex

100‧‧‧Opening device

Claims (10)

A spinal distraction device comprising: a distraction device comprising a flexible upper fixation portion, a flexible lower fixation portion, and a formation between the upper fixation portion and the lower fixation portion An elastic portion, the wall surface of the elastic portion forms a spiral groove; the upper fixing portion and the lower fixing portion respectively have a pair of clamping walls, and the opposite inner faces of the pair of clamping walls are disposed away from the elastic portion There is at least one pointed convex portion; by the above structure, the distracting device can be implanted between two consecutive spinous processes of the vertebra, and the upper fixing portion and the lower fixing portion are respectively locked on both sides of the spinous process of the vertebra. The distraction device is configured to support a gap between the spinous processes of the spine. The spinal distraction device of claim 1, wherein a top surface of each of the pair of clamping walls protrudes from a top surface of the clamping wall. The spinal distraction device of claim 1, wherein the elastic portion has a rectangular cylinder and is solid or hollow, and the bottom portion of the hollow elastic portion has a base surface or a through shape. The spinal distraction device of claim 1, wherein at least one of the convex and convex portions is protruded from the upper and lower end faces of the elastic portion. The spinal distraction device of claim 4, wherein an end surface of the elastic portion extending in a direction of a major axis and adjacent to the convex portion of the card has a curved shape. The spinal distraction device according to claim 1, wherein the elastic portion is recessed with an inner concave portion on both side surfaces of the curved end surface. The spinal distraction device of claim 1, wherein each of the clamping walls is provided with a perforation. The spinal distraction device of claim 7, wherein the two perforations are correspondingly provided with a fixing member locked to the spinous process of the spine, and each of the fixing members comprises a bolt and a nut. The spinal distraction device of claim 1, wherein the opposite inner faces of each of the pair of clamping walls are adjacent to the elastic portion with at least one micro-convex portion. The spinal distraction device of claim 9, wherein each of the pair of microprotrusions are displaceable relative to each other, and each of the pair of protuberances is displaceable relative to each other.