Visual lumbar fusion cage implanting device of spine endoscope

Abstract

The utility model discloses a spine endoscope visual lumbar fusion cage implanting device which comprises a conveying sheath, a fixing device and a fixing device. The conveying sheath is a sleeve outside the endoscope, and a connector is mounted below the sleeve; the conveying sheath can be inserted into an endoscope to observe the positions of the connector and the fusion cage, the screw driver is inserted through an inner hole of the endoscope, and the connector and the conveying sheath can rotate and move relative to each other visually by rotating the screw driver so as to be connected with or disconnected from the fusion cage. By means of the design, the device can be used for a spine endoscope lumbar vertebra fusion operation, when the fusion device is implanted, the fusion device is held through the conveying sheath, and visual conveying operation is conducted in the protection sheath, so that the implantation position of the fusion device is more accurate, the damage possibility is reduced, and the operation time is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments especially relates to a spine endoscope visible lumbar fusion cage implantation device. BACKGROUND

[0002] Spine endoscope minimally invasive lumbar interbody fusion surgery is applied more and more in clinic because of its small injury and less bleeding. But when implanting the fusion cage, the fusion cage cannot pass through the inner hole of the endoscope, and the implantation cannot be observed visually, so the implantation is implanted only by the experience of the operator, and the implantation position and depth cannot be grasped, which leads to repeated perspective and prolongs the operation time, and the X-ray can cause damage to the patient and the doctor, and the possibility of nerve damage is increased under blind implantation. UTILITARY MODEL

[0003] The utility model discloses a spine endoscope visible lumbar fusion cage implantation device to solve the technical problems in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a spine endoscope visible lumbar fusion cage implantation device, comprising:

[0005] The delivery sheath is connected with the connector;

[0006] The lower part of the delivery sheath is provided with a connector;

[0007] The connector is matched with the opener, and the rotation movement between the connector and the delivery sheath is driven by rotating the opener, and the connector is connected with the fusion cage;

[0008] The front end of the opener is matched with the fusion cage, and the rotation fusion cage expansion screw is further inserted.

[0009] As a further description of the above technical scheme: the delivery sheath comprises a delivery section and a connecting section, and the delivery section and the connecting section are hollow designed, the delivery position of the fusion cage can be observed through the spine endoscope, and the inner side of the distal end of the delivery section is provided with a thickened pipe wall.

[0010] As a further description of the above technical scheme: the outer diameter of the connecting section and the connector is connected by thread, the connector is fixed by the opener, the delivery sheath and the connector are rotated, and the connector moves up and down along the axial direction on the inner side of the connecting section.

[0011] As a further description of the above technical scheme: the connector is provided with a through hole, the opener is matched with the inner wall hexagon of the through hole, and the connector is rotated.

[0012] As a further description of the above technical solutions: the fusion device is further provided with a connecting hole or a fusion device expansion adjusting screw, the screwdriver is inserted through the through hole and matched with the internal hexagon of the connecting hole or the fusion device expansion adjusting screw, the through hole and the connecting hole or the fusion device expansion adjusting screw are internal hexagonal holes, the internal hexagonal hole of the through hole is larger than that of the connecting hole or the fusion device expansion adjusting screw, and the screwdriver is a hexagonal metal rod, which is provided with a hexagonal protrusion in the middle.

[0013] As a further description of the above technical solutions: the connector and the fusion device are in clamping connection or threaded connection.

[0014] As a further description of the above technical solutions: when the connector and the fusion device are in clamping connection, the connector is funnel-shaped.

[0015] As a further description of the above technical solutions: when the connector moves upwards relative to the delivery sheath, the end of the connector located outside the delivery sheath is pressed and shrunk inward by the annular connecting section, so that the fusion device is clamped.

[0016] As a further description of the above technical solutions: when the connector and the fusion device are in threaded connection, the connector is sleeve-shaped, and the distal end is provided with a thread on the outside, and the fusion device is provided with a threaded hole.

[0017] As a further description of the above technical solutions: the connector and the threaded hole of the fusion device are connected by rotating the screwdriver.

[0018] The above technical solutions have the following advantages or beneficial effects:

[0019] By designing the implantation device for the endoscopic visible fusion device, a larger fusion device can be connected to the fusion device through the delivery sheath outside the endoscope, and the endoscope can be placed in the delivery sheath to observe and determine the position of the treatment area, so that the implantation position of the fusion device is more accurate and the operation time is saved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The structure diagram of the implantation device is provided for the utility model;

[0021] Figure 2 The structure diagram of the delivery sheath is provided for the utility model;

[0022] Figure 3 The structure diagram of another embodiment of the delivery sheath is provided for the utility model Figure 1 ;

[0023] Figure 4 The structure diagram of another embodiment of the delivery sheath is provided for the utility modelFigure 2 .

[0024] Legend:

[0025] 1, delivery sheath; 11, delivery section; 12, connecting section; 13, thickened wall; 2, connector; 21, through hole; 3, extractor; 4, fusion cage; 41, connecting hole or fusion cage expansion adjustment screw; 42, threaded hole. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only 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 without creative labor fall within the scope of protection of the present application.

[0027] With reference to Figures 1-2 , the present application provides an embodiment: a spine endoscope visible lumbar fusion cage implanting device, comprising: a delivery sheath 1; a connector 2 is installed below the delivery sheath 1; the connector 2 cooperates with the extractor 3, rotates and moves between the connector 2 and the delivery sheath 1 by rotating the extractor 3, and is installed and connected with the fusion cage 4; the front end of the extractor 3 is adapted to the fusion cage 4, and further inserts the expansion screw of the fusion cage 4.

[0028] In the present embodiment, the fusion cage 4 can be delivered through the delivery sheath 1, the extractor 3 penetrates the connector 2 and the expansion screw of the fusion cage 4, the spine endoscope can be delivered through the delivery sheath 1, the position of the fusion cage 4 can be visually determined, the implanting position of the fusion cage 4 is more accurate, and the operation time is saved.

[0029] The delivery sheath 1 comprises a delivery section 11 and a connecting section 12, and the distal end inside of the delivery section 11 is provided with a thickened wall 13.

[0030] In the present embodiment, the diameter size gradually decreases at the connection between the delivery section 11 and the connecting section 12, forming a funnel-shaped structure, the delivery position of the fusion cage 4 can be observed through the hollow design between the delivery section 11 and the connecting section 12, and the thickened wall 13 enhances the holding force of the fusion cage.

[0031] The outer diameter of the connecting section 12 and the connector 2 is connected through threads, the relative rotation of the delivery sheath 1 and the connector 2 is rotated, and the connector 2 moves up and down along the axis inside the connecting section 12.

[0032] In the present embodiment, the inner diameter of the connecting section 12 is provided with threads, and the outer diameter of the connector 2 is provided with threads, so that the connector 2 rotates inside the connecting section 12 and moves up and down along the axis of the connecting section 12 through thread connection.

[0033] When the connector 2 is clamped with the fusion device 4, the connector 2 is funnel-shaped; when the connector 2 moves upwards relative to the delivery sheath 1, the end of the connector 2 located outside the delivery sheath 1 is pressed and shrunk inward by the annular connecting section 12, thereby clamping the fusion device 4.

[0034] In this embodiment, when the connector 2 moves upwards relative to the connecting section 12, the connecting section 12 presses and shrinks the connector 2 downward, thereby clamping the fusion device 4; the upper end of the fusion device 4 is provided with a bayonet, which cooperates with the connector 2.

[0035] A through hole 21 is formed in the connector 2, and the pick 3 passes through the through hole 21 and cooperates with the fusion device 4.

[0036] In this embodiment, the pick 3 passes through the through hole 21 and cooperates with the through hole 21, and by rotating the pick 3, the connector 2 can be rotated to control the moving direction of the connector 2.

[0037] The fusion device 4 is further provided with a connecting hole or a fusion device dilatation adjusting screw 41; the through hole 21 and the connecting hole or the fusion device dilatation adjusting screw 41 cooperate with the pick 3; the through hole 21 and the connecting hole or the fusion device dilatation adjusting screw 41 are internal hexagonal holes, the inner diameter of the through hole 21 is larger than the inner diameter of the connecting hole or the fusion device dilatation adjusting screw 41, and the pick 3 is a hexagonal metal rod, the middle part of which is provided with a hexagonal protrusion, which cooperates with the through hole 21.

[0038] In this embodiment, the upper end surface of the fusion device 4 is provided with an upwardly extending connecting hole or a fusion device dilatation adjusting screw 41, which cooperates with the front end of the pick 3; the hexagonal protrusion can cooperate with the through hole 21; the pick 3 is used to adjust the dilatation and shrinkage of the connector 2 and clamp the fusion device 4; the pick 3 continues to extend to the inner side of the connector 2, so that the hexagonal protrusion moves to the inner side of the connector 2 and the front end of the pick 3 cooperates with the connecting hole or the fusion device dilatation adjusting screw 41, which is used to rotate the connecting hole or the fusion device dilatation adjusting screw 41 to dilate or shrink the fusion device 4; after being delivered to the treatment area, the delivery sheath 1 is reversely rotated to separate the fusion device 4 from the connector 2, and then the pick 3 is removed from the connecting hole or the fusion device dilatation adjusting screw 41.

[0039] Embodiment 2

[0040] With reference to Figure 3 When the connector 2 is threadedly connected with the fusion device 4, the distal end of the connector 2 is sleeve-shaped and is provided with external threads, and the fusion device 4 is provided with a threaded hole 42; the connector 2 is threadedly connected with the threaded hole 42 of the fusion device 4 by rotating the pick 3.

[0041] In the embodiment, the diameter of the connector 2 near the fusion device 4 is smaller than the diameter of the connection section 12, and the outer diameter of the two ends is provided with a thread, the connection hole or the fusion device expansion adjusting screw 41 of the fusion device 4 is provided inwardly, and a threaded hole 42 is further provided outwardly of the connection hole or the fusion device expansion adjusting screw, the thread below the connector 2 is the same diameter as the threaded hole 42 of the fusion device 4, the connector 2 is rotated by rotating the screwdriver 3, and the connector 2 is connected with the fusion device 4 through the thread, and the screwdriver 3 is not provided with a hexagonal protrusion.

[0042] Embodiment 3

[0043] Reference Figure 4 In the embodiment, the connector 2 is a T-shaped sleeve for a common non-expandable fusion device, the outer diameter of the connection section 12 is provided with an external thread, the fusion device 4 is provided with a threaded hole 42, the lower end of the connector 2 is inserted into the inner side of the threaded hole 42, and the connector 2 is connected with the fusion device 4 through the thread, and the screwdriver 3 is not provided with a hexagonal protrusion.

[0044] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A spinal endoscopic visualization lumbar fusion cage implantation device, characterized in that, include: Delivery sheath (1); A connector (2) is installed below the delivery sheath (1); The connector (2) cooperates with the screwdriver (3). By rotating the screwdriver (3), the connector (2) rotates and moves between the connector (2) and the delivery sheath (1) to be installed and connected with the fusion unit (4). The front end of the screwdriver (3) is fitted with the fusion device (4) and further inserted into the rotating fusion device (4) to open the screw.

2. The implantation device according to claim 1, characterized in that: The delivery sheath (1) includes a delivery section (11) and a connecting section (12). A hollow design is made between the delivery section (11) and the connecting section (12) so that the delivery position of the fusion device (4) can be observed through a spinal endoscope. A thickened tube wall (13) is provided on the inner side of the distal end of the delivery section (11).

3. The implantation device according to claim 2, characterized in that: The outer diameter of the connecting section (12) and the connector (2) are connected by threads. The connector (2) is fixed with the screwdriver (3). The conveying sheath (1) is rotated and the connector (2) rotates, so that the connector (2) moves up and down along the axial direction inside the connecting section (12).

4. The implantation device according to claim 1, characterized in that: The connector (2) has a through hole (21), and the screwdriver (3) engages with the hexagonal inner wall of the through hole (21) to drive the connector (2) to rotate.

5. The implantation device according to claim 4, characterized in that: The fusion unit (4) is also provided with a connection hole or a fusion unit opening adjustment screw (41). The screwdriver (3) is inserted through the through hole (21) and engages with the internal hexagon of the connection hole or the fusion unit opening adjustment screw (41). The through hole (21) and the connection hole or the fusion unit opening adjustment screw (41) are internal hexagon holes. The internal hexagon of the through hole (21) is larger than the internal hexagon hole of the connection hole or the fusion unit opening adjustment screw (41). The screwdriver (3) is a hexagonal metal rod with a hexagonal protrusion in the middle. The hexagonal protrusion engages with the through hole (21).

6. The implantation device according to claim 1, characterized in that: The connector (2) and the fusion unit (4) are clamped or threaded.

7. The implantation device according to claim 6, characterized in that: When the connector (2) and the fusion unit (4) are clamped together, the connector (2) is funnel-shaped.

8. The implantation device according to claim 7, characterized in that: When the connector (2) moves upward toward the delivery sheath (1), the inclined surface of one end of the connector (2) located outside the delivery sheath (1) is pressed inward by the annular connecting section (12) to clamp the fusion unit (4).

9. The implantation device according to claim 6, characterized in that: When the connector (2) and the fusion unit (4) are connected by threads, the connector (2) is sleeve-shaped with threads on the outer side of the distal end, and the fusion unit (4) is provided with threaded holes (42).

10. The implantation device according to claim 9, characterized in that: By rotating the screwdriver (3), the connector (2) is rotatably connected to the threaded hole (42) of the fusion device (4).

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