An endoscope-assisted bone removal device

Abstract

The utility model relates to a kind of auxiliary removal bone mass under spinal endoscope, including instrument body, the instrument body one end is equipped with threaded rod, threaded rod outer wall is equipped with outer thread.The utility model can better lock the bone mass to be removed after ring saw, can take out bone mass along with ring saw, improve surgical efficiency, be conducive to surgical operation;Speed up operation time, reduce unnecessary repeated operation process.

Description

Technical Field

[0001] This utility model relates to the field of bone removal, and in particular to an endoscopic bone removal device for the spine. Background Technology

[0002] With the advent of the minimally invasive era in spinal surgery, most spinal surgeries can now be performed using minimally invasive instruments, with percutaneous endoscopic discectomy (PED) instruments being the mainstream. During the procedure, a endoscopic trephine saw is sometimes used, which can efficiently remove bone. However, during the trephineing process, the bone may not be able to fully engage with the saw teeth. It's possible to saw through the bone but not remove it, creating an awkward situation because the size of the cut bone matches the endoscopic channel. Even with a nucleus pulposus forceps, the bone cannot be properly engaged and removed. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an endoscopic bone removal instrument for the spine, which can better lock the bone to be removed after the trephine, improve surgical efficiency, and speed up the operation time.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] An endoscopic bone removal device for spinal spine includes a device body, one end of which is provided with a threaded rod, and the outer wall of the threaded rod is provided with external threads.

[0006] Furthermore, the external thread includes a first thread and a second thread, the first thread being close to the outer side of the instrument body, and the pitch of the first thread being greater than the pitch of the second thread.

[0007] Furthermore, the ratio of the first thread to the second thread is 2:1.

[0008] Furthermore, the end of the threaded rod is a self-tapping end.

[0009] Furthermore, the end of the instrument body without a threaded rod is provided with a handle.

[0010] Furthermore, the main body of the device is a long rod.

[0011] Furthermore, the length of the long rod is 130-190mm.

[0012] Furthermore, the height of the external thread is 7-13mm.

[0013] Furthermore, the height of the external thread is 10mm.

[0014] Furthermore, the threaded rod has a diameter of 3-4 mm.

[0015] The beneficial effects of this utility model are:

[0016] By connecting the threaded rod to the bone to be trephinated, the bone to be removed after trephination can be better locked in place. The bone can be removed along with the trephination, improving surgical efficiency and facilitating surgical operation; it also speeds up the operation time and reduces unnecessary repeated procedures. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is the right view of the present invention;

[0020] Figure 4 for Figure 3 Enlarged view of section B in the middle.

[0021] In the diagram, 1-long rod, 2-threaded rod, 3-external thread, 4-first thread, 5-second thread, 6-handle. Detailed Implementation

[0022] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0023] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0024] Example 1:

[0025] like Figures 1 to 4 As shown, a spinal endoscopy-assisted bone removal device includes a device body, one end of which is provided with a threaded rod 2, and the outer wall of the threaded rod 2 is provided with an external thread 3.

[0026] The external thread 3 includes a first thread 4 and a second thread 5. The first thread 4 is close to the outer side of the instrument body, and the pitch of the first thread 4 is greater than the pitch of the second thread 5.

[0027] The ratio of the first thread 4 to the second thread 5 is 2:1.

[0028] By using the lower first thread 4 with a pitch greater than the upper second thread 5, the connection between the threaded rod 2 and the bone to be circumcised can be further tightened.

[0029] The end of the threaded rod 2 is a self-tapping end.

[0030] The instrument body has a handle 6 at the end without the threaded rod 2.

[0031] The main body of the device is a long rod 1.

[0032] The length of the long rod 1 is 130-190mm.

[0033] The length of the long rod 1 varies depending on the length of different percutaneous endoscopic discectomy instruments.

[0034] Factors affecting the length of rod 1 include, but are not limited to:

[0035] The working length, outer diameter, working channel, and viewing angle of the spinal endoscope.

[0036] The height of the external thread 3 is 7-13mm.

[0037] In this embodiment, the height of the external thread 3 is 10mm.

[0038] The threaded rod 2 has a diameter of 3-4 mm.

[0039] How to use:

[0040] During the surgery, the threaded rod 2 of the instrument body is screwed into the bone to be circumferentially sawed, and then the circumferential saw is performed. Afterward, the instrument body and the bone under the circumferential saw ring are removed together.

[0041] By connecting the threaded rod 2 to the bone to be trephinated, the bone to be removed after trephination can be better locked in place. The bone can be removed along with the trephination, improving surgical efficiency and facilitating surgical operation; it also speeds up the operation time and reduces unnecessary repeated operations.

[0042] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An endoscopic-assisted bone removal instrument for the spine, characterized in that: The device includes a body, one end of which is provided with a threaded rod, and the outer wall of the threaded rod is provided with an external thread; the external thread includes a first thread and a second thread, the first thread is close to the outer side of the device body, and the pitch of the first thread is greater than the pitch of the second thread.

2. The endoscopic bone removal instrument for spinal surgery according to claim 1, characterized in that: The ratio of the first thread to the second thread is 2:

1.

3. The endoscopic-assisted bone removal instrument for spinal surgery according to claim 1, characterized in that: The end of the threaded rod is a self-tapping end.

4. The endoscopic-assisted bone removal instrument for spinal surgery according to claim 1, characterized in that: The instrument body has a handle at the end without a threaded rod.

5. The endoscopic bone removal instrument for spinal surgery according to claim 1, characterized in that: The main body of the device is a long rod.

6. The endoscopic-assisted bone removal instrument for spinal surgery according to claim 5, characterized in that: The length of the long rod is 130-190mm.

7. The endoscopic bone removal instrument for spinal surgery according to claim 1, characterized in that: The height of the external thread is 7-13mm.

8. The endoscopic-assisted bone removal instrument for spinal surgery according to claim 7, characterized in that: The height of the external thread is 10mm.

9. The endoscopic-assisted bone removal instrument for spinal surgery according to claim 1, characterized in that: The threaded rod has a diameter of 3-4 mm.

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