Spine endoscope transparent visible funnel bone grafting device

Abstract

A transparent bone grafting funnel is directly arranged in a protective sheath in the endoscopic surgery bone grafting step, the transparent bone grafting funnel comprises a bone grafting part and a bone grafting push rod which is used for being matched with the bone grafting part and can pass through an inner hole of the endoscope, and an opening matched with the intervertebral space in size is formed in the bottom of the bone grafting part. The bone grafting part comprises a first bone grafting part, the first bone grafting part comprises a first pipe body, one end of the first pipe body is connected with a first funnel, and the first pipe body and the first funnel are integrally formed. And placing the prepared small bone graft into a bone graft funnel, and pushing the bone graft or bone graft material into the intervertebral space of the spine by using a bone graft push rod under direct view.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of endoscopic spine surgery, and particularly relates to a transparent visual funnel bone grafting device for endoscopic spine surgery. BACKGROUND

[0002] Endoscopic lumbar fusion surgery is increasingly applied in clinical practice due to its small trauma and fast recovery. However, in the process of intervertebral bone grafting, we mostly use metal funnel-shaped bone grafting devices. Since the bone grafting device is not visible, we can only rely on experience and feel to place the metal hollow rod of the bone grafting device in the intervertebral space for bone grafting. This may cause the bone grafting metal hollow rod to be placed incorrectly and the depth to be difficult to control, and in some cases, the bone grafting block may be placed in the spinal canal, which requires the removal of the bone block, reduces the efficiency of the operation, and even causes complications. SUMMARY

[0003] To solve the above technical problems, the present application provides a transparent visual funnel bone grafting device for endoscopic spine surgery, which is used in the sheath and includes a bone grafting part and a bone grafting push rod that can pass through the inner hole of the endoscope. The push rod pushes the bone block into the intervertebral space under direct vision during bone grafting. The bottom of the bone grafting part is provided with another funnel-shaped opening that matches the height and size of the intervertebral space. The inner diameter of the bone grafting part is just large enough to be inserted into the endoscope.

[0004] Preferably, the bone grafting part includes a first bone grafting part, and the first bone grafting part includes a first tube body and a first funnel connected to one end of the first tube body. The first tube body and the first funnel are integrally formed.

[0005] Preferably, the first tube body is fixedly connected with a first handle at the upper portion.

[0006] Preferably, a support frame is arranged below the first handle of the first tube body.

[0007] Preferably, the support frame is sleeved on the first tube body, and the support frame is rotatably connected with the first tube body.

[0008] Preferably, a fastening knob is installed on one side end of the support frame.

[0009] Preferably, the first tube body is provided with an opening at the lower end, and the opening 211 is integrally connected with the bone grafting part 21. The opening is slightly smaller in diameter and has a funnel shape that matches the height and size of the intervertebral space. The bottom edge of the opening can be folded to form a hinge.

[0010] Preferably, a plurality of slits are formed in the lower end of the first tube body, and the bottommost part is provided with a foldable hinge.

[0011] Preferably, the slits are longitudinally arranged and extend radially along the first tube body.

[0012] Preferably, the bone grafting piece comprises a second bone grafting piece, the top of the second bone grafting piece is funnel-shaped, and the bottom of the second bone grafting piece is provided with an opening slightly smaller in size and funnel-shaped, the edge of which can be partially mesh-shaped or partially hollowed out, facilitating insertion of an endoscope to observe the surrounding structure.

[0013] Technical effects and advantages of the present application:

[0014] 1. In the present application, the transparent bone grafting device is directly placed into the protective sheath during use, and an endoscope can be inserted into the bone grafting piece. Since the bone grafting piece is made of transparent material, the internal and external tissues of the bone grafting piece can be directly observed, and the intervertebral space can also be observed through the opening. After the position is determined, the bone block is implanted through the funnel, and under direct vision, the intervertebral space is implanted with a bone grafting push rod through the inner hole of the endoscope.

[0015] 2. In the present application, the tightening knob is attached to the outer wall of the protective sheath, which appropriately fixes the first bone grafting piece and the protective sheath, reduces the operation procedure of the surgical assistant, and avoids errors. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structure schematic diagram of the spinal endoscope transparent visible funnel bone grafting device provided by the first embodiment of the present application when in use;

[0017] Figure 2 is a structure schematic diagram of the first bone grafting piece in the spinal endoscope transparent visible funnel bone grafting device provided by the first embodiment of the present application;

[0018] Figure 3 is a sectional view of the first bone grafting piece in the spinal endoscope transparent visible funnel bone grafting device provided by the first embodiment of the present application;

[0019] Figure 4 is a structure schematic diagram of the first bone grafting piece in the spinal endoscope transparent visible funnel bone grafting device provided by the first embodiment of the present application; Figure 3 is an enlarged structure schematic diagram of part A in the first bone grafting piece;

[0020] Figure 5 is a structure schematic diagram of the spinal endoscope transparent visible funnel bone grafting device provided by the second embodiment of the present application.

[0021] In the figure: 1, protective sheath; 2, first bone grafting piece; 21, first tube body; 211, opening; 212, split; 22, first funnel; 23, first handle; 24, support frame; 25, tightening knob; 3, endoscope; 4, second bone grafting piece. DETAILED DESCRIPTION

[0022] The application is further described below in conjunction with the drawings and detailed description. The embodiments of the application are presented by way of example and description only and are not intended to limit the application to the forms disclosed. Many modifications and variations will occur to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the application and its practical application and to enable others skilled in the art to best utilize the application in various embodiments with various modifications as are suited to the particular use contemplated.

[0023] The present application provides a transparent endoscope viewable funnel bone grafting device for protecting the sheath, comprising a bone grafting part in which a bone block can be placed, inserted into the endoscope, and the bone block or bone grafting material can be implanted into the intervertebral space under direct vision using a push rod, and the bottom of the bone grafting part is made of transparent material or is hollow, so that the correct placement of the device can be observed by the endoscope during placement, thereby reducing the difficulty of the operation.

[0024] Embodiment one

[0025] Referring to Figures 1-2 In an embodiment, a transparent endoscope viewable funnel bone grafting device for protecting the sheath 1 is provided, comprising a first bone grafting part 2, which is used in conjunction with a bone grafting push bone device to place a bone block or bone grafting material at a key position of the spine, the first bone grafting part 2 comprises a first tube body 21, one end of which is connected to a first funnel 22, the first tube body 21 and the first funnel 22 are integrally formed, the upper part of the first tube body 21 is fixedly connected with a first handle 23, and a support frame 24 is arranged below the first handle 23, the support frame 24 is sleeved on the first tube body 21 and is rotatably connected with the first tube body 21, a fastening knob 25 is installed on one side end of the support frame 24, the fastening knob 25 is a knob with a screw rod, and the lower end of the first tube body 21 is provided with an opening 211 which is integrally connected with the bone grafting part 21, has a slightly smaller caliber, is funnel-shaped, conforms to the height of the intervertebral space, and has a folding switch hinge at the bottom edge of the opening.

[0026] Specifically, in this embodiment, the first bone grafting part 2 is made of a high polymer material, such as PPSU, which is light in weight and easy to insert and remove the endoscope 3, the first bone grafting part 2 is inserted into the protective sheath 1 and is tightly fitted to the outer wall of the protective sheath 1 by twisting the fastening knob 25, so that the first bone grafting part 2 and the protective sheath 1 are properly fixed, reducing the operation procedure of the operating assistant and avoiding errors.

[0027] In this embodiment, the fastening knob 25 not only rotates by itself, but also rotates along the first tube body 21, and in use, rotating the support frame 24 can avoid contact with the T-shaped handle of the protective sheath 1.

[0028] In the embodiment, a crack 212 is arranged at the lower end of the first tube body 21, and a foldable switch hinge is arranged at the bottom to adapt to the height of the intervertebral space and to be appropriately squeezed. When the bone is implanted, a slightly large bone block can push and expand the lower end of the first tube body 21, and it is easier to implant.

[0029] Referring to Figures 3-4 As shown, a clamping groove 241 is arranged at the connection between the support frame 24 and the first tube body 21, the clamping groove 241 is annular, and a protrusion 213 is arranged on the outer wall of the first tube body 21, the protrusion 213 is annular, the support frame 24 is sleeved on the protrusion 213 of the first tube body 21, and the clamping groove 241 and the protrusion 213 are matched to prevent the support frame 24 from being longitudinally displaced.

[0030] Embodiment two

[0031] In the embodiment, the second bone implanting part 4 is made of metal material, the top of the second bone implanting part 4 is funnel-shaped, the bottom of the second bone implanting part 4 is slightly reduced and also funnel-shaped, the bottom can be partially hollowed out or mesh-shaped, the second bone implanting part 4 can be inserted into the surrounding tissue structure observed by the endoscope, a bone block can be placed in the second bone implanting part 4, the endoscope is inserted, and the bone block or bone implanting material can be implanted into the intervertebral space under direct vision by using a push rod, whether the placement position is correct can be observed by the endoscope when the placement is performed, and thus the difficulty of the operation is reduced.

[0032] Embodiment three

[0033] In the lumbar open surgery for lumbar fusion, a high-molecular transparent material can also be used to make a bone implanting funnel, and the current method of implanting bone blocks one by one by using forceps can be avoided, and the bone implanting efficiency is improved.

[0034] The specific implementation can adopt the scheme of example one, the first handle of the bone implanting part can be lengthened and widened to be convenient for hand holding in the open surgery, the bottom opening of the bone implanting part is not changed, the size is still consistent with the height of the intervertebral space, and there is a crack, the opening can increase the hinge to block the bone block, in use, the bone block can be placed in the funnel and the bone implanting part in advance, the amount of bone implanting can be observed from the outside due to the transparent material, and the bone block is placed into the intervertebral space by using a push rod, when the bone block is relatively large, the opening side has a longitudinal crack, and the bone block is not easy to be blocked. The bottom opening hinge can only slightly block the bone block, but cannot block the bone implanting force of the push rod, and the bone implanting is in an open state.

[0035] Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor should belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application are implemented according to the conventional means in the art, unless specifically described and limited.

Claims

1. An endoscope transparent visual funnel bone grafting device for protecting in a sheath, characterized in that, The application relates to a bone grafting device and a bone grafting push rod which can pass through the inner hole of an endoscope, wherein the push rod pushes bone blocks into the intervertebral space under direct vision during bone grafting, the bottom of the bone grafting device is provided with another funnel-shaped opening which matches the height of the intervertebral space, and the inner diameter of the bone grafting device is just suitable for being inserted into the endoscope.

2. The endoscope transparent visual funnel bone grafting device according to claim 1, characterized in that, The bone grafting device comprises a first bone grafting device (2), and the first bone grafting device (2) comprises a first pipe body (21) which is connected with a first funnel (22) at one end, and the first pipe body (21) and the first funnel (22) are integrally formed.

3. The endoscope transparent visual funnel bone grafting device according to claim 2, characterized in that, The first pipe body (21) is fixedly connected with a first handle (23) at the upper portion.

4. The endoscope transparent visual funnel bone grafting device according to claim 3, characterized in that, The first pipe body (21) is provided with a support frame (24) below the first handle (23).

5. The endoscope transparent visual funnel bone grafting device according to claim 4, characterized in that, The support frame (24) is sleeved on the first pipe body (21), and the support frame (24) is rotationally connected with the first pipe body (21).

6. The endoscope transparent visual funnel bone grafting device according to claim 5, characterized in that, A fastening knob (25) is arranged on one side end of the support frame (24).

7. The transparent visualizing funnel bone grafting device according to claim 1, wherein, The first pipe body (21) is provided with an opening (211) at the lower end, the opening (211) is integrally connected with the first pipe body (21), has a slightly smaller caliber, is funnel-shaped, matches the height of the intervertebral space, and the bottom edge of the opening can be folded.

8. The endoscope transparent visual funnel bone grafting device according to claim 7, characterized in that, The first pipe body (21) is provided with a plurality of slits (212) at the lower end, and the bottom is provided with a foldable hinge.

9. The endoscope transparent visual funnel bone grafting device according to claim 8, characterized in that, The slits (212) are longitudinally arranged and extend along the radial direction of the first pipe body (21).

10. The endoscope transparent visualization funnel bone grafting device of claim 1, wherein, The bone grafting device can also be made of metal material, the second bone grafting device (4) is funnel-shaped at the top, the bottom of the second bone grafting device (4) is provided with an opening which is slightly reduced and matches the height of the intervertebral space, is also funnel-shaped, and the edge can be partially mesh-shaped or partially hollow, so that the endoscope can be inserted to observe the surrounding structure.

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