Bone grafting guide device visible under endoscope

Abstract

The utility model provides a bone grafting guide device visible under an endoscope, which comprises a bone grafting funnel, a hollow rod fixedly connected to the lower end of the bone grafting funnel and a bone grafting bar inserted into the hollow rod in a matched manner, and a handle is arranged at the upper end of the bone grafting bar; the hollow rod is a transparent hollow rod; a through hole communicated with the hollow rod is formed in the bottom wall of the bone grafting funnel, a cover plate capable of being opened and closed is arranged at the upper end of the through hole, and scale marks are arranged on the inner wall of the bone grafting funnel. The condition in the hollow rod can be conveniently observed under an endoscope, so that a doctor can conveniently observe the bone grafting process and the depth and the position of aggregate, and the doctor can better control the movement of the aggregate and the depth of a bone grafting bar; according to the bone grafting device, the aggregate dosage can be visually checked, recording is convenient, the aggregate does not need to be metered in other containers in advance, the problem that the aggregate is attached to the inner walls of other measuring tools and materials are not used accurately is effectively solved, other measuring tools do not need to be additionally cleaned, the operation cost is saved, and meanwhile the bone grafting efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an endoscopically visualized bone grafting guide device. Background Technology

[0002] Endoscopic lumbar fusion surgery is increasingly used in clinical practice due to its minimally invasive nature and rapid recovery. During spinal surgery, bone grafting is often required at the site of the lesion. In lumbar fusion surgery, bone grafting is performed between the vertebrae via anterior and posterior approaches, allowing for bony integration between the lumbar vertebrae and thus restoring the integrity and stability of the lumbar spine.

[0003] Currently, in the process of intervertebral bone grafting, we mostly use a hollow metal rod with a bone graft funnel and a metal bone graft rod to perform the bone grafting operation. However, because the inside of the hollow metal rod is not visible, it is difficult for doctors to observe the inside of the hollow metal tube. Furthermore, the existing bone graft funnel cannot measure the actual volume of bone material used. The measured bone material can only be transferred from other containers into the bone graft funnel before being pushed in. When the bone material is measured in other containers, it is easy to stick to the inner wall of the container, causing inaccurate material usage. Moreover, the measuring container needs to be cleaned, which will cause waste and increase the cost of surgery.

[0004] In summary, there is an urgent need to design an endoscopically visualized bone grafting guide device to overcome the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to provide an endoscopically visualized bone grafting guide device that overcomes the above-mentioned problems.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: an endoscopically visualized bone grafting guide device, comprising:

[0007] The bone graft funnel, a hollow rod fixedly connected to the lower end of the bone graft funnel, and a bone graft rod inserted inside the hollow rod, the upper end of the bone graft rod being provided with a handle;

[0008] The hollow rod is a transparent hollow rod;

[0009] The bottom wall of the bone graft funnel has a through hole that communicates with the hollow rod. The upper end of the through hole is provided with an openable and closable cover plate. The inner wall of the bone graft funnel is provided with scale lines.

[0010] The purpose of this utility model and the technical problems to be solved can be further achieved by the following technical measures.

[0011] Furthermore, one end of the cover plate is rotatably connected to the bottom wall of the bone graft funnel via a pin.

[0012] Furthermore, the pin is arranged vertically.

[0013] Furthermore, the bottom wall of the bone graft funnel is horizontal, and the through hole is opened on one side of this horizontal plane.

[0014] Furthermore, the upper surface of the cover plate is provided with anti-slip texture.

[0015] Furthermore, a bone storage trough is connected to one side of the bone graft funnel.

[0016] Furthermore, the hollow rod is made of transparent polyethylene material.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The present invention relates to an endoscopically visualized bone grafting guide device, which makes the hollow rod transparent, so as to facilitate observation of the internal condition of the hollow rod under endoscopy, thereby facilitating doctors to observe the bone grafting process and the depth and position of the bone material, and enabling doctors to better control the movement of the bone material and the depth of the bone graft rod.

[0019] 2. This utility model discloses an endoscopically visualized bone grafting guide device. It features a through-hole in the bottom wall of a bone grafting funnel, connected to a hollow rod. An openable cover is installed at the top of the through-hole, and graduation lines are set on the inner wall of the funnel. When bone material needs to be added, the bone grafting rod is removed, the through-hole is closed with the cover, and bone material is added to the funnel. The amount of bone material used can be visually observed through the graduation lines on the side wall of the funnel. Then, the cover is opened, opening the through-hole and connecting the funnel to the hollow rod. The bone material in the funnel can then be gradually pushed into the bone grafting site using the bone grafting rod. The operation is convenient, the amount of bone material used is intuitive and easy to record, and there is no need to pre-measure the bone material in other containers, effectively avoiding bone material contamination on the inner walls of other measuring instruments and causing inaccurate measurements. Furthermore, there is no need to clean other measuring instruments, saving surgical costs and improving bone grafting efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the endoscopically visualized bone graft guide device provided by this utility model.

[0021] Figure 2 This is a cross-sectional structural diagram of the bone graft funnel and hollow rod in an embodiment of this utility model;

[0022] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Bone grafting funnel; 11. Through hole; 12. Scale line; 13. Bone storage groove;

[0025] 2. Hollow rod;

[0026] 3. Bone grafting rod;

[0027] 4. Handle;

[0028] 5. Cover plate; 51. Pin; 52. Anti-slip texture. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] Please see Figures 1 to 3 An endoscopically visualized bone graft guide device, comprising:

[0031] The bone graft funnel 1, the hollow rod 2 fixedly connected to the lower end of the bone graft funnel 1, and the bone graft rod 3 inserted inside the hollow rod 2, wherein the upper end of the bone graft rod 3 is provided with a handle 4.

[0032] The hollow rod 2 is a transparent hollow rod; the transparent hollow rod 1 makes it convenient for doctors to observe the internal condition of the hollow rod 1 under endoscopy, thereby making it convenient for doctors to observe the bone grafting process and the depth and position of the bone material, and enabling doctors to better control the movement of the bone material and the depth of the bone graft rod.

[0033] The bottom wall of the bone graft funnel 1 has a through hole 11 that communicates with the hollow rod 2. An openable cover plate 5 is provided at the upper end of the through hole 11. The cover plate 5 can cover the through hole 11, preventing communication between the bone graft funnel 1 and the hollow rod 2, thus facilitating the placement of bone material inside the bone graft funnel 1. The inner wall of the bone graft funnel 1 has graduation lines 12. When the hollow rod 2 is removed and the cover plate 5 covers the through hole 11, bone material can be added inside the bone graft funnel 1, allowing the doctor to directly observe the use of the bone material. Measure the bone, then open the cover plate 5, opening the through hole 11 to connect the bone graft funnel 1 with the hollow rod 2. The bone graft rod 3 can then be used to gradually push the bone material in the bone graft funnel 1 into the bone graft site. The operation is convenient, the amount of bone material used is intuitive and easy to record, and there is no need to measure the bone material in other containers in advance, effectively avoiding the problem of bone material sticking to the inner wall of other measuring instruments and causing inaccurate material usage. In addition, there is no need to clean other measuring instruments, saving surgical costs and improving bone graft efficiency.

[0034] Preferably, one end of the cover plate 5 is rotatably connected to the bottom wall of the bone graft funnel 1 via a pin 51. Rotating the cover plate 5 can open or close the through hole 11. When rotating the cover plate 5, the end of the bone graft rod 3 can be used to move the cover plate 5.

[0035] Preferably, the pin 51 is vertically arranged, which allows the cover plate 5 to be rotated in the horizontal plane. This not only makes operation convenient, but also facilitates the placement of the cover plate 5 after the through hole 11 is opened, thus improving the stability of the cover plate 5 when it is placed.

[0036] Preferably, the bottom wall of the bone graft funnel 1 is a horizontal plane, and the through hole 11 is opened on one side of the horizontal plane. When it is necessary to open the through hole 11, the cover plate 5 is rotated to be located on the other side of the horizontal plane, that is, on the side of the horizontal plane where the through hole 11 is set.

[0037] Preferably, the upper surface of the cover plate 5 is provided with anti-slip texture 52 to increase the friction between the lower end of the bone graft rod 3 and the surface of the cover plate 5, making it easier for the doctor to move the cover plate 5 through the end of the bone graft rod 3.

[0038] Preferably, a bone storage trough 13 is also connected to one side of the bone graft funnel 1 to facilitate the storage of spare bone material. When the bone material in the bone graft funnel 1 connected to the hollow rod 2 is used up, the hollow rod 2 can be removed, the cover plate 5 can be put on to cover the through hole 11, and the spare bone material in the bone storage trough 13 can be transferred to the inside of the bone graft funnel 1. While checking the amount of bone material used, the cover plate 5 can be opened again to gradually push the bone material into the human bone graft site.

[0039] Preferably, the hollow rod 2 is made of transparent polyethylene. The bone graft rod 3, bone graft funnel 1, cover plate 5, and pin 51 are all made of stainless steel, and the handle 4 is made of rubber.

[0040] Preferably, the hollow rod 2 has a rectangular cross-section with rounded corners, an outer diameter of about 10 mm, a width of about 5 mm, and a thickness of about 0.5 mm.

[0041] The present invention has been further described above with reference to the embodiments, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An endoscopic visible bone graft guiding device, comprising a bone graft funnel (1), a hollow rod (2) fixedly connected to the lower end of the bone graft funnel (1), and a bone graft rod (3) fitted into the hollow rod (2), wherein the upper end of the bone graft rod (3) is provided with a handle (4), characterized in that: the hollow rod (2) is a transparent hollow rod; a through hole (11) is formed in the bottom wall of the bone graft funnel (1) and is in communication with the hollow rod (2), the upper end of the through hole (11) is provided with an openable and closable cover plate (5), and the inner wall of the bone graft funnel (1) is provided with a scale line (12). One end of the cover plate (5) is rotatably connected to the bottom wall of the bone graft funnel (1) through a pin shaft (51). The pin shaft (51) is vertically arranged.

2. The endoscopically visualizable bone graft guide of claim 1, wherein, The bottom wall of the bone graft funnel (1) is a horizontal plane, and the through hole (11) is formed in one side of the horizontal plane.

3. The endoscopically visualizable bone graft guide of claim 2, wherein, The upper surface of the cover plate (5) is provided with an anti-skid pattern (52).

4. The endoscopically visualizable bone graft guide of claim 3, wherein, One side of the bone graft funnel (1) is further connected with a bone storage groove (13).

5. An endoscopically visualizable bone graft guide according to claim 3 or 4, characterized in that The hollow rod (2) is made of transparent polyethylene material.

6. The endoscopically visualizable bone graft guide of claim 1, wherein, ​ 7. The endoscopically visualizable bone graft guide of claim 1, wherein, ​

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