Visual extra-scope multifunctional shoveling and scraping knife based on spinal fusion

Abstract

The utility model discloses a spinal fusion surgery-based visual multifunctional shoveling and scraping knife outside a mirror. The shoveling and scraping knife comprises a knife main body, the cutter main body is conveyed through a protective sheath, a spine endoscope can be inserted into the inner side of the cutter main body, and the spine endoscope observes the front end and the two sides of the cutter main body; the scalpel head is designed and improved to be in a curette shape and a scraper knife shape, an intervertebral disc and an end plate are treated in a spinal intervertebral fusion operation, when the spinal endoscope is used, the spinal endoscope can rotate forwards and backwards, the scraper knife head can be observed in different visual fields, soft tissue can be scraped and removed more effectively under direct vision, and the operation efficiency and the fusion probability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a multifunctional scraper outside a visual mirror based on spinal fusion. Background Art

[0002] During endoscopic lumbar fusion and open spinal interbody fusion, the soft tissue and end plates of the intervertebral disc need to be scraped off and bone grafting and fusion are performed. During the operation, direct endoscopic vision can change the traditional practice of doctors using nucleus pulposus forceps and scrapers to scrape the intervertebral disc and cartilage end plates based on their experience, which leads to incomplete treatment and directly affects the fusion rate of lumbar bone grafting. However, the disc endplate processing instruments currently used under endoscopy have a long installation time for flip-down installation and insufficient styles for extraendoscopic scrapers, and cannot achieve fast and suitable disc endplate processing under direct vision for different situations.

[0003] It should be noted that the inventor has applied for a patent with publication number CN219048720U and conducted preliminary research on a visual scraper for the intervertebral disc endplate in open lumbar fusion surgery, but there are still inconveniences in handling endplates in different situations, resulting in incomplete treatment. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a multifunctional scraper outside the visual mirror based on spinal fusion.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a multifunctional scraper outside the visual mirror based on spinal fusion, comprising:

[0006] Tool body;

[0007] The tool body is transported through a protective sheath, and a spinal endoscope is arranged on the inner side of the tool body, through which the front end and both sides of the tool body are observed.

[0008] As a further description of the above technical solution: the tool body includes a handle, a conveying section and a tool head.

[0009] As a further description of the above technical solution: the spinal endoscope is inserted through the opening at the handle, extends from the cylindrical delivery section, and passes through the delivery section to the proximal side of the cutting head in front.

[0010] As a further description of the above technical solution: the cutter head includes a connecting section, and the connecting section is arranged on both sides of the conveying section, and a U-shaped connecting body is formed at the front end of the connecting section.

[0011] As a further description of the above technical solution: extending outwards on both sides of the connector to form a first blade body and a second blade body;

[0012] The first blade is a blunt scraper, and the second blade is a flat scraper with an inclination angle of 0-15°.

[0013] As a further description of the above technical solution: the bending angle of the first blade body is greater than that of the second blade body.

[0014] As a further description of the above technical solution: the connecting section is centrally or eccentrically connected to the conveying section.

[0015] As a further description of the above technical solution: the first blade is arranged on a side away from the conveying section, and the end face of the second blade is provided with scraping teeth, the scraping teeth are centered or inclined and are higher than the connecting section.

[0016] As a further description of the above technical solution: a through hole is provided on the end surface of the connector, and the spinal endoscope can be observed through the through hole.

[0017] As a further description of the above technical solution: the outer diameter of the delivery section is smaller than the protective sheath, the inner diameter can be inserted into the spinal endoscope, and the length of the blade head is 3-4 cm.

[0018] The above technical solution has the following advantages or beneficial effects:

[0019] 1. By improving the design of the cutter head, the position of the cutter head is adjusted to the middle of the delivery section, flush with the position of the spinal endoscope, and a through hole is opened in the connector to ensure that the front end of the cutter head is visible and the cutter bodies on both sides can effectively scrape and remove soft tissue. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the scraper provided by the utility model;

[0021] Figure 2 It is a top view of the cutter head in the utility model;

[0022] Figure 3 This is a bottom view of the cutter head in the utility model;

[0023] Figure 4 It is a front view of the cutter head in the utility model;

[0024] Figure 5 This is a schematic structural diagram of another embodiment of the scraper provided by the utility model.

[0025] Legend:

[0026] 1. Protective sheath; 2. Spinal endoscope; 3. Handle; 4. Delivery section; 5. Cutting head; 51. Connecting section; 52. First cutting body; 53. Second cutting body; 54. Connecting body; 55. Scraping teeth. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1-Figure 4 The utility model provides an embodiment: a visual endoscopic multifunctional scraper based on spinal fusion surgery, comprising: a tool body; the tool body is transported through a protective sheath 1, a spinal endoscope 2 is provided on the inner side of the tool body, and the front end and both sides of the tool body are observed through the spinal endoscope 2.

[0029] In this embodiment, the tool body is matched with the spinal endoscope 2, the spinal endoscope 2 is placed inside the tool body, and the spinal endoscope 2 and the tool body are placed together in the protective sheath 1 and transported to the target area, which is the spinal intervertebral disc endplate. By rotating the spinal endoscope 2, the front end and both sides of the tool body can be observed, which is convenient for intraoperative operations.

[0030] The spinal endoscope 2 is inserted through the opening of the handle 3 , extends from the cylindrical delivery section 4 , and passes through the delivery section 4 to the proximal side of the front blade 5 .

[0031] In this embodiment, the spinal endoscope 2 can be inserted through the opening of the scraper handle 3 and transported through the channel of the delivery section 4, so that the front end of the spinal endoscope or electronic endoscope 2 moves to the connection between the delivery section 4 and the blade head 5.

[0032] The cutter head 5 includes a connecting section 51 , which is disposed on both sides of the conveying section 4 , and a U-shaped connecting body 54 is formed at the front end of the connecting section 51 .

[0033] In this embodiment, two connecting sections 51 are provided, which are arranged in the middle position of the outer diameter of the conveying section 4. A U-shaped connecting body 54 is provided at the front end of the two connecting sections 51. A through hole is opened on the end face of the connecting body 54. The spinal endoscope 2 can be observed through the through hole to control the blade 5 to perform scraping operations.

[0034] The two sides of the connecting body 54 extend outward to form a first blade body 52 and a second blade body 53. The first blade body 52 is a blunt scraper, and the second blade body 53 is a flat scraper, with an inclination angle of 0-15 degrees.

[0035] In this embodiment, the bending angle of the first blade body 52 is greater than that of the second blade body 53. The bending angle of the first blade body 52 is 20°-30°, preferably 25°, and the bending angle of the second blade body 53 is 0°-15°, preferably 3-5°. It is a plane protruding outward, and the scraping operation is achieved through the second blade body 53.

[0036] The connecting section 51 is centrally or eccentrically connected to the conveying section 4 . A first blade 52 is arranged on the side away from the conveying section 4 . The end surface of the second blade 53 is provided with scraping teeth 55 . The scraping teeth 55 are centrally or inclinedly designed and are higher than the connecting section 51 .

[0037] In this embodiment, a scraping tooth 55 is provided on the end surface of the second blade body 53, and a certain inclination angle can be provided in the protective sheath 1 during the scraping operation, so as to facilitate the scraping operation.

[0038] The outer diameter of the delivery section 4 is smaller than the protective sheath, and the inner diameter can be inserted into the spinal endoscope. The length of the blade head 5 is 3-4 cm.

[0039] After being matched with the protective sheath 1, the protective sheath 1 can be extended to the intervertebral space for work.

[0040] Example 2

[0041] Reference Figure 5 In this embodiment, the angle of the second blade body 53 is 0-10°, the cross-section of the connecting body 54 is hollowed out, and the outer side surface of the second blade body 53 and the hollow inner surface form a thin scraper head, which is mainly used to scrape the end plate. The first blade head 52 still has a scraping effect, and there is no need to replace the blade head, and it can be used in two ways: scraping and scraping.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional scraper for spinal fusion surgery, characterized in that: include: Tool body; The tool body is transported through a protective sheath (1), and a spinal endoscope (2) is provided on the inner side of the tool body, and the front end and both sides of the tool body are observed through the spinal endoscope (2); The tool body comprises a handle (3), a conveying section (4) and a tool head (5); The cutter head (5) comprises a connecting section (51), wherein the connecting section (51) is arranged on both sides of the conveying section (4), and a U-shaped connecting body (54) is formed at the front end of the connecting section (51); Extending outwards on both sides of the connecting body (54) to form a first blade body (52) and a second blade body (53); The first blade (52) is a blunt scraper, and the second blade (53) is a flat scraper, with an inclination angle of 0-15°; The bending angle of the first blade body (52) is greater than that of the second blade body (53); The connecting section (51) is centrally or eccentrically connected to the conveying section (4); The first blade (52) is arranged on a side away from the conveying section (4), and the end surface of the second blade (53) is provided with scraping teeth (55), wherein the scraping teeth (55) are centered or inclined and are higher than the connecting section (51).

2. The multifunctional scraper for spinal fusion surgery using a visual microscope according to claim 1, characterized in that: The spinal endoscope (2) is inserted through the opening of the handle (3), extends from the cylindrical delivery section (4), and passes through the delivery section (4) to the proximal side of the cutting head (5) in front.

3. The multifunctional scraper for spinal fusion surgery using a visual microscope according to claim 1, characterized in that: The end surface of the connector (54) is provided with a through hole, and the spinal endoscope (2) can be observed through the through hole.

4. The multifunctional scraper for spinal fusion surgery using a visual microscope according to claim 1, characterized in that: The outer diameter of the delivery section (4) is smaller than the protective sheath, and the inner diameter is large enough for inserting a spinal endoscope. The length of the blade head (5) is 3-4 cm.

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