A rotating scraper for intervertebral fusion surgery

Abstract

The utility model relates to a rotary scraper for intervertebral fusion surgery, characterized in that it comprises: an operating tube (1), an operating handle (2) connected to one end of the operating tube (1), a knife head (3) detachably connected to the other end of the operating tube (1), the knife head (3) being provided with a blade (30), a through hole (11) for an endoscope to penetrate into being provided between the operating tube (1) and the operating handle (2), and the rotary scraper is equipped with a plurality of knife heads with blades of different widths, so as to facilitate surgery on different groups of people and intervertebral spaces of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical medical instruments, in particular to a rotary scraper for intervertebral fusion surgery. Background Art

[0002] At present, with the aging of the population, spinal degenerative diseases are increasing year by year. Severe symptoms such as disc herniation often require treatment through intervertebral fusion and other surgeries. During surgical treatment, the doctor first needs to insert instruments into the intervertebral space to treat the protruding and herniated disc. Specifically, the reamer is first inserted into the intervertebral disc between two adjacent vertebrae, and the annulus fibrosus and endplate are removed by the reamer. Then, the annulus fibrosus and nucleus pulposus are removed from the vertebrae little by little by using a curette. The work efficiency is not high, and the working time is long. At the same time, long-term and repeated surgical operations will also cause fatigue of the doctor and increase the risk index of the operation.

[0003] Traditional reamer blades have a single size. The intervertebral spaces of different people are of different sizes. A single-sized reamer blade is not convenient for performing surgery on different people and intervertebral spaces of different sizes. Even if the doctor faces the same spinal patient, the intervertebral spaces of the spine are of different sizes. A single-sized surgical scraper cannot perform surgical cleaning on the lesions of different intervertebral spaces of the spine, which brings inconvenience to the doctor during surgery.

[0004] Therefore, how to overcome the above-mentioned defects has become an important issue to be solved urgently by those skilled in the art. Utility Model Content

[0005] The utility model overcomes the shortcomings of the above-mentioned technology and provides a rotary scraper for intervertebral fusion surgery. The rotary scraper is equipped with a plurality of blade heads with blades of different widths, so as to facilitate surgery on different groups of people and intervertebral spaces of different sizes.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A rotary scraper for intervertebral fusion surgery comprises: an operating tube, an operating handle connected to one end of the operating tube, a knife head detachably connected to the other end of the operating tube, a knife blade being arranged on the knife head, and a through hole for an endoscope to penetrate into being arranged between the operating tube and the operating handle.

[0008] Preferably, the cutter head as described above is connected to the operating tube by threads.

[0009] Preferably, as described above, the cutting head includes a first cutting head, a second cutting head and a third cutting head, the first cutting head is provided with a first cutting edge, the second cutting head is provided with a second cutting edge, the third cutting head is provided with a third cutting edge, the width of the first cutting edge is L1, the width of the second cutting edge is L2, the width of the third cutting edge is L3, the size range of the width L1 of the first cutting edge is: 1mm≤L1≤3mm; the size range of the width L2 of the second cutting edge is: 3mm<L2≤5mm; the size range of the width L3 of the third cutting edge is: 5mm<L3≤6mm.

[0010] Preferably, the blade is serrated as described above.

[0011] Preferably, as mentioned above, a plurality of needles are arranged on the blade.

[0012] Preferably, the needle is provided with barbs as described above.

[0013] Preferably, as mentioned above, an annular handle is provided on the operating handle.

[0014] Preferably, the cutter head as described above is connected to the operating tube by a snap-fit.

[0015] Preferably, as mentioned above, scale lines are provided on the operating tube.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model provides a rotary scraper for intervertebral fusion surgery. The rotary scraper is equipped with a plurality of blade heads with blades of different widths, so as to facilitate surgery on different groups of people and intervertebral spaces of different sizes.

[0018] 2. The utility model provides a rotary scraper for intervertebral fusion surgery. The rotary scraper is equipped with a plurality of blades with different widths. The blades are detachably connected to an operating tube, which is convenient for replacing the blades and for disinfecting and cleaning the blades.

[0019] 3. The utility model provides a rotary scraper for intervertebral fusion surgery, wherein the blade on the blade head is serrated, which enhances the bite force between the blade head and the protruding intervertebral disc, and is more force-bearing than a traditional scraper without teeth, making it easier to tear and scrape off the diseased area. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional view of the utility model.

[0021] Figure 2 It is an exploded schematic diagram of the utility model with multiple cutter heads.

[0022] Figure 3 It is a three-dimensional view of the cutter head of the utility model.

[0023] Figure 4 The utility model is a three-dimensional schematic diagram of an operating tube with a scale operating handle and a ring handle.

[0024] Figure 5 It is a three-dimensional schematic diagram of the utility model in which the blade is sawtooth-shaped.

[0025] Figure 6 It is a three-dimensional schematic diagram of a blade of the utility model with needles and barbs.

[0026] Figure 7 It is an exploded schematic diagram of the utility model in which the cutter head is connected to the operating tube through a buckle. DETAILED DESCRIPTION

[0027] The features of the present invention and other related features are further described in detail below through embodiments to facilitate understanding by technicians in the same industry.

[0028] In this embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left end", "above", "back", "middle", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] like Figures 1 to 7 As shown, a rotary scraper for intervertebral fusion surgery comprises: an operating tube 1, an operating handle 2 connected to one end of the operating tube 1, a cutter head 3 detachably connected to the other end of the operating tube 1, the cutter head 3 is provided with a blade 30, and a through hole 11 for an endoscope to penetrate is provided between the operating tube 1 and the operating handle 2. The rotary scraper is equipped with a plurality of cutter heads with blades of different widths, and the cutter heads are detachably connected to the operating tube, so that the cutter heads can be replaced conveniently and disinfected and cleaned conveniently.

[0030] The inner diameter φ1 of the through hole 11 has a size range of: 7mm≤φ1≤8mm;

[0031] The length L4 of the through hole 11 ranges from 170 mm to φ1 to 180 mm.

[0032] The length L5 of the operating handle 2 ranges from 70 mm to φ1 to 90 mm.

[0033] The length L6 of the operating tube 1 ranges from 170 mm to φ1 to 180 mm.

[0034] like Figure 2As shown, in this embodiment, the cutter head 3 is connected to the operating tube 1 by threads. The rotary scraper is equipped with a plurality of cutter heads with blades of different widths. The cutter heads are detachably connected to the operating tube, which is convenient for replacing the cutter heads and disinfecting and cleaning the cutter heads.

[0035] like Figure 2 , Figure 7 As shown, in this embodiment, the blade head 3 includes a first blade head 31, a second blade head 32 and a third blade head 33, the first blade head 31 is provided with a first blade 310, the second blade head 32 is provided with a second blade 320, and the third blade head 33 is provided with a third blade 330, the width of the first blade 310 is L1, the width of the second blade 320 is L2, and the width of the third blade 330 is L3, the width L1 of the first blade 310 has a size range of: 1mm≤L1≤3mm; the size range of the width L2 of the second blade 320 is: 3mm<L2≤5mm; the size range of the width L3 of the third blade 330 is: 5mm<L3≤6mm, the rotary scraper is equipped with a plurality of blade heads with blades of different widths, so as to facilitate surgery on different groups of people and intervertebral spaces of different sizes.

[0036] like Figure 5 As shown, in this embodiment, the blade 30 is serrated, and the blade on the blade head is serrated, which enhances the bite force between the blade head and the protruding intervertebral disc, and is more force-bearing than a traditional scraper without teeth, making it easier to tear and scrape off the diseased area.

[0037] like Figure 6 As shown, in this embodiment, a plurality of needles 301 are provided on the blade 30, and the blade on the blade head is needle-shaped, which enhances the bite force between the blade head and the protruding intervertebral disc, and is more force-bearing than a traditional scraper without teeth, making it easier to tear and scrape off the diseased area.

[0038] like Figure 6 As shown, in this embodiment, the needle 301 is provided with barbs 302, and the blade on the knife head is needle-shaped and has barbs, which facilitates the removal of the annulus fibrosus and the nucleus pulposus from between the vertebral bodies.

[0039] like Figure 4 As shown, in this embodiment, the operating handle 2 is provided with an annular handle 21, which facilitates the doctor's hand to rotate the operating tube 1 from different angles and controls the magnitude of the torsional force.

[0040] like Figure 7As shown, in the present embodiment, the cutter head 3 is connected to the operating tube 1 by a snap-fit, a plurality of elastic arms are provided at the lower end of the operating tube 1, an arc-shaped protrusion is provided on the elastic arm, and an arc-shaped groove corresponding to the arc-shaped protrusion is provided on the inner wall of the cutter head, so as to facilitate the snap-fit ​​with the arc-shaped protrusion on the elastic arm. The rotary scraper is equipped with a plurality of cutter heads with blades of different widths, and the cutter heads are detachably connected to the operating tube, so as to facilitate the replacement of the cutter heads and the disinfection and cleaning of the cutter heads.

[0041] like Figure 4 As shown, in this embodiment, the operating tube 1 is provided with scale lines 12, so that the doctor can have a clear understanding of the length of the operating rod extending into the human body, which is convenient for subsequent surgical operations.

[0042] The above are only typical embodiments of the present invention. In addition, the present invention may have many other specific implementation methods. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A rotary scraper for intervertebral fusion surgery, characterized in that: include: An operating tube (1), an operating handle (2) connected to one end of the operating tube (1), a cutting head (3) detachably connected to the other end of the operating tube (1), the cutting head (3) being provided with a cutting edge (30), and a through hole (11) for an endoscope to be inserted is provided between the operating tube (1) and the operating handle (2).

2. The rotary scraper for intervertebral fusion surgery according to claim 1, characterized in that: The cutter head (3) is connected to the operating tube (1) via threads.

3. The rotary scraper for intervertebral fusion surgery according to claim 1, characterized in that: The blade head (3) comprises a first blade head (31), a second blade head (32) and a third blade head (33); the first blade head (31) is provided with a first blade (310), the second blade head (32) is provided with a second blade (320), and the third blade head (33) is provided with a third blade (330); the width of the first blade (310) is L1, the width of the second blade (320) is L2, and the width of the third blade (330) is L3; the width L1 of the first blade (310) has a size range of 1 mm ≤ L1 ≤ 3 mm; the width L2 of the second blade (320) has a size range of 3 mm < L2 ≤ 5 mm; the width L3 of the third blade (330) has a size range of 5 mm < L3 ≤ 6 mm.

4. The rotary scraper for intervertebral fusion surgery according to claim 1, characterized in that: The blade (30) is serrated.

5. The rotary scraper for intervertebral fusion surgery according to claim 1, characterized in that: The blade (30) is provided with a plurality of needles (301).

6. The rotary scraper for intervertebral fusion surgery according to claim 5, characterized in that: The needle (301) is provided with barbs (302).

7. The rotary scraper for intervertebral fusion surgery according to claim 1, characterized in that: The operating handle (2) is provided with an annular handle (21).

8. The rotary scraper for intervertebral fusion surgery according to claim 5, characterized in that: The cutter head (3) is connected to the operating tube (1) via a buckle.

9. The rotary scraper for intervertebral fusion surgery according to claim 1, characterized in that: The operating tube (1) is provided with scale marks (12).

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