Visual intervertebral space bone grafting device under spine endoscope

Abstract

The bone grafting device comprises a bone grafting funnel and a push rod, the bone grafting funnel comprises a funnel storage bin and a bone grafting pipe, the bone grafting pipe communicated with the funnel storage bin is of an integrated transparent structure, the middle lower portion of the side wall of the bone grafting pipe is provided with a drainage hole and scale marks, and the lower end of the bone grafting pipe is provided with an object outlet. The diameter of the push rod is matched with the inner diameter of the bone grafting tube. The intervertebral space bone grafting tube is applied to the intervertebral space bone grafting process under a spine endoscope, bone grains can be preloaded into the bone grafting tube, the push rod is used for pushing and injecting the bone grains into the intervertebral space, the drainage hole of the bone grafting tube can prevent water from flowing back and overflowing during pushing and injecting, the scale marks can accurately grasp the insertion depth of the bone grafting tube and the bone grafting body amount, and the whole process is visual. The bone grafting funnel is made of disposable transparent materials and has the advantages of being low in use cost, visible in the whole process, safe to use and high in bone grafting efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of orthopedic equipment, in particular to a visible intervertebral space bone grafting device under a spinal endoscope. Background Art

[0002] For the lumbar spinal endoscope decompression and intervertebral bone grafting fusion surgery, during the surgical operation, bone graft particles need to be injected into the intervertebral space. Therefore, professional tools are required for processing. The existing bone grafting devices have many deficiencies in use. For example: 1. The existing bone grafting funnel is made of metal, opaque, cannot achieve visualization, has poor safety, and cannot observe the amount of bone grafting. 2. The spinal endoscope surgery is performed in a water environment. The bone grafting tube has no drainage holes, and when using a push rod to inject bone graft particles, the liquid will overflow from the tail end of the bone grafting tube, posing a risk of contamination. Summary of the Utility Model

[0003] Aiming at the above defects or deficiencies, the purpose of the utility model is to provide a visible intervertebral space bone grafting device under a spinal endoscope.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] A visible intervertebral space bone grafting device under a spinal endoscope includes: a bone grafting funnel and a push rod movable in the bone grafting funnel. The bone grafting funnel includes: a bone grafting tube, which is a transparent and visible tube body. Drainage holes are provided on the side wall of the bone grafting tube. The push rod is made of metal, and its diameter matches the inner diameter of the bone grafting tube.

[0006] Scale lines are provided on the outer wall of the bone grafting tube, and the depth of entry into the intervertebral space and the amount of bone grafting can be observed.

[0007] The diameter of the drainage holes is 1 mm, and the number is 8.

[0008] A funnel storage bin and a handle are provided at the top of the bone grafting tube for easy gripping. The bottom of the bone grafting tube is an open structure with an outlet.

[0009] The funnel storage bin and the top of the bone grafting tube are of an integral structure.

[0010] The push rod is made of metal and can be reused. The length of the push rod is equal to the depth of the bone grafting tube.

[0011] The diameter of the push rod handle is larger than the diameter of the bone grafting tube, which plays a role in limiting the depth and prevents the push rod from entering too deep and damaging the anterior tissues.

[0012] The bone grafting tube is a tube body made of transparent acrylic.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The present utility model provides a visible intervertebral space bone grafting device under a spinal endoscope. By setting a visible bone grafting funnel and a push rod, it can be applied to the process of intervertebral space bone grafting under a spinal endoscope. Bone particles can be pre-loaded into the bone grafting tube, and the push rod is used to inject the bone particles into the intervertebral space. The drainage holes of the bone grafting tube can prevent water from flowing back and overflowing during injection, accurately control the insertion depth of the bone grafting tube and the amount of bone grafting, and the whole process is visible. The bone grafting funnel of the present utility model is made of a disposable transparent material, and has the advantages of low use cost, visible throughout the process, safe use and high bone grafting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the visible intervertebral space bone grafting device under a spinal endoscope of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the bone grafting funnel of the present utility model;

[0017] Figure 3 is a schematic structural diagram of the push rod of the present utility model.

[0018] In the figure, 1 - bone grafting funnel; 2 - push rod; 11 - funnel storage bin and handle; 12 - bone grafting tube; 13 - drainage hole; 14 - scale line; 15 - outlet; 21 - handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will describe the present utility model in detail with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] As Figure 1 、 2 shown, the present utility model provides a visible intervertebral space bone grafting device under a spinal endoscope, including: a bone grafting funnel 1 and a push rod 2 that moves within the bone grafting funnel 1. The bone grafting funnel 1 includes: a bone grafting tube 12, and the bone grafting tube 12 is a transparent and visible tube body. A drainage hole 13 is provided on the side wall of the bone grafting tube 12, and the diameter of the push rod 2 matches the inner diameter of the bone grafting tube 12.

[0021] Preferably, in order to accurately obtain the operation process of the bone grafting tube 12 and accurately control the insertion depth of the bone grafting tube, a scale line 14 is provided on the outer wall of the bone grafting tube 12. Since it is made of a transparent material, the amount and process of bone grafting can be observed in real time.

[0022] In the present utility model, the drainage hole 13 of the bone grafting tube can prevent water from flowing back and overflowing during injection. The diameter of the drainage hole 13 is 1 mm, and the number is 8.

[0023] Further preferably, the top of the bone grafting tube 12 in the present invention is provided with a funnel storage bin and handle 11, the bottom of the bone grafting tube 12 is an open structure, and is provided with an outlet 15. The funnel storage bin and handle 11 can place bone particles that need to be grafted therein for easy pushing. Preferably, the funnel storage bin and handle 11 and the top of the bone grafting tube 12 are an integrated structure.

[0024] like Figure 3 As shown, the push rod 2 is provided with a handle 21, and the length of the push rod 2 is equal to the depth of the bone graft tube 12. The diameter of the handle 21 is larger than the diameter of the bone graft tube 12 to limit the depth and prevent the push rod from being pushed too deep and damaging the anterior tissue.

[0025] It should be noted that in the present invention, the bone graft tube 12 is a tube made of transparent acrylic, but it is not limited to this material and can also be made of other transparent materials. In addition, the funnel storage bin and handle 11 and the bone graft tube 12 are made of an integrated transparent material, and are made of disposable transparent material, which has the advantages of low cost, full visibility, safe use and high bone grafting efficiency.

[0026] The working process of the utility model is as follows: after the intervertebral space bone grafting bed is processed, the bone particles are pre-loaded into the bone grafting tube. Under the monitoring of spinal endoscope, the operator holds the bone grafting funnel storage compartment and handle, puts the bone grafting funnel into the intervertebral space, and the depth of the bone grafting tube entering the intervertebral space is preferably 3-4 cm. At this time, the assistant holds the spinal endoscope, and the operator puts the push rod into the bone grafting tube for push injection, and knocks the tail end of the push rod handle with a bone hammer to gradually place the bone particles into the intervertebral space. As the bone particles enter, they are gradually withdrawn from the bone grafting tube backwards until all the bone particles enter the intervertebral space and the vertebral funnel is taken out. The whole process is visualized and the bone grafting is safe and reliable.

[0027] This utility model is used in the intervertebral bone grafting process under spinal endoscopy. Bone particles can be pre-loaded into the bone graft tube, and the bone particles are pushed into the intervertebral space with a push rod. The drainage hole of the bone graft tube can prevent water from flowing back and overflowing during injection. The scale line can accurately grasp the insertion depth of the bone graft tube and the volume of bone graft, and the whole process is visualized.

[0028] It is obvious to those skilled in the art that the above-mentioned specific embodiments are only preferred solutions of the present invention. Therefore, any improvements and changes that may be made by those skilled in the art to certain parts of the present invention still reflect the principles of the present invention and still achieve the purpose of the present invention, and all fall within the scope of protection of the present invention.

Claims

1. A visible intervertebral space bone grafting device under spinal endoscope, characterized in that, Comprising: A bone grafting funnel (1) and a push rod (2) movable within the bone grafting funnel (1), the bone grafting funnel (1) comprising: a bone grafting tube (12), the bone grafting tube (12) being a transparent and visible tube body, a drain hole (13) being provided on the side wall of the bone grafting tube (12), the diameter of the push rod (2) matching the inner diameter of the bone grafting tube (12).

2. The endoscopic spinal visual intervertebral space bone grafting device according to claim 1, characterized in that, A scale line (14) is provided on the outer wall of the bone grafting tube (12).

3. The endoscopic spinal visual intervertebral space bone grafting device according to claim 1 or 2, characterized in that, The diameter of the drain hole (13) is 1 mm and the number is 8.

4. The spinal endoscope visual intervertebral space bone grafting device according to claim 1, wherein, A funnel storage bin and handle (11) is provided at the top of the bone grafting tube (12), and the bottom of the bone grafting tube (12) is of an open structure with an outlet (15).

5. The spinal endoscope-visible intervertebral space bone grafting device according to claim 4, wherein, The funnel storage bin and handle (11) and the top of the bone grafting tube (12) are of an integral structure.

6. The spinal endoscopic visible intervertebral space bone grafting device according to claim 1, characterized in that, The push rod (2) is made of metal, with a handle (21) provided at the upper end, and the length of the push rod (2) being equal to the depth of the bone grafting tube (12).

7. The endoscopic spinal visual intervertebral space bone grafting device according to claim 6, characterized in that, The diameter of the handle (21) is larger than the diameter of the bone grafting tube (12), serving a depth-limiting function.

8. The endoscopic spinal visual intervertebral space bone grafting device according to claim 4, characterized in that, The bone grafting tube (12) is a tube body made of transparent acrylic.

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