Expandable spine micro-channel system

Abstract

The utility model discloses an expandable spine microchannel system, which relates to the technical field of neurosurgery, and comprises a base, one side of the base is provided with two groups of distraction mechanisms, each distraction mechanism comprises a sliding seat, a shifting piece, a miniature steering gear, a fixed seat and a connecting seat, one side of the connecting seat is clamped with a distraction piece, and the other side of the connecting seat is clamped with the miniature steering gear. Two sets of limiting blocks are fixedly installed on one side of the opening piece, a view groove is formed in the opening piece in a penetrating mode, a rotating piece is slidably connected to one side of the opening piece, and a limiting ring is fixedly installed on one side of the rotating piece. The distraction mechanism and the channels capable of expanding step by step are arranged, the channels with different calibers can be selected according to the requirements of an operation, the visual field range in a wound can be controlled through the arrangement of the rotating piece while the supporting effect of the distraction piece is not weakened, and therefore 360-degree full-visual-field observation and operation in the wound are achieved. The operation accuracy and success rate are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of neurosurgery, in particular to an expandable spinal microchannel system. Background Art

[0002] During spinal microsurgery, the surgeon uses X-ray-guided needle positioning to gradually bluntly expand the surgical path and insert a working channel (6-22 mm), and performs minimally invasive precision spinal surgery with the assistance of a magnified imaging system. Minimally invasive channel technology protects paravertebral structures and spinal stability through delicate operations and more targeted surgical exposure, thereby ensuring surgical efficacy and improving patient prognosis.

[0003] Currently, clinical microchannel systems are divided into expandable channel-like expanders and non-expandable sleeve-like channel systems. The expandable channel-like expander can expand the channel while exposing a single side, while the non-expandable sleeve-like channel system cannot expand the channel but can display a wider range. To address the above problems, an expandable spinal microchannel system is proposed. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that the current clinical microchannel system is divided into expandable channel-like spreaders and non-expandable sleeve-like channel systems, each of which has advantages and disadvantages, and proposes an expandable spinal microchannel system.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an expandable spinal microchannel system, including a base, one side of the base is provided with two groups of expansion mechanisms, the expansion mechanism includes a sliding seat, a paddle, a micro-steering device, a fixed seat and a connecting seat, one side of the connecting seat is clamped with an expansion piece, one side of the expansion piece is fixedly installed with two groups of limit blocks, a field of view groove is opened through the interior of the expansion piece, one side of the expansion piece is slidably connected with a rotating piece, and one side of the rotating piece is fixedly installed with a limit ring.

[0006] Preferably, the bottom of the sliding seat is slidably connected to the top of the base, and the bottom of the paddle is fixedly connected to the top of the sliding seat.

[0007] Preferably, one side of the micro-steering device is fixedly connected to one side of the base, one side of the fixing seat is fixedly connected to one side of the micro-steering device, and one side of the connecting seat is fixedly connected to one side of the fixing seat.

[0008] Preferably, the two groups of limit blocks are mutually engaged with one side of the connecting seat, and the rotating piece is arranged on one side of the viewing slot.

[0009] Preferably, a fixing mechanism is provided on one side of the spreading piece. The fixing mechanism includes a fixing piece, a screw, a nut seat, a support rod, and a fixing bolt.

[0010] Preferably, the top of the screw penetrates through the bottom of the fixing piece, and the outer wall of the nut seat is clamped with the inner wall of the fixing piece.

[0011] Preferably, the outer wall of the fixing bolt is threadedly connected to the inner wall of the nut seat. The fixing bolt penetrates through the inside of the support rod, and the bottom of the fixing bolt is clamped with the top of the screw.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0013] 1. In the present utility model, by providing a spreading mechanism, a channel that can be expanded step by step is provided, and channels with different diameters can be selected according to the requirements of the operation. The setting of the rotating piece can control the visual field range in the wound while not weakening the supporting effect of the spreading piece, so as to achieve 360° full-field observation and operation in the wound, improving the accuracy and success rate of the operation.

[0014] 2. In the present utility model, by providing a fixing mechanism, it helps the doctor to use the spreading mechanism to expand the wound, facilitating the fixation and support of the tissues around the wound, keeping the surgical area stable, being conducive to the doctor's precise operation, reducing the surgical risk, expanding the surgical field of view and operation space, making it easier for the doctor to observe and operate, reducing the friction and extrusion between tissues, reducing the risk of tissue damage and bleeding, and improving the accuracy and success rate of the operation. Description of the Drawings

[0015] Figure 1 is a three-dimensional structural schematic diagram of a dilatable spinal microchannel system proposed by the present utility model;

[0016] Figure 2 is a top view of the structure of a dilatable spinal microchannel system proposed by the present utility model;

[0017] Figure 3 is a three-dimensional structural schematic diagram of the spreading piece and the rotating piece of a dilatable spinal microchannel system proposed by the present utility model;

[0018] Figure 4 is a three-dimensional structural schematic diagram of the fixing mechanism of a dilatable spinal microchannel system proposed by the present utility model.

[0019] Legend: 1. Base; 2. Expanding mechanism; 21. Sliding seat; 22. Paddle; 23. Micro steering gear; 24. Fixed seat; 25. Connecting seat; 26. Expanding piece; 27. Limiting block; 28. Vision slot; 29. Rotating piece; 210. Limiting ring; 3. Fixing mechanism; 31. Fixing piece; 32. Screw; 33. Nut seat; 34. Support rod; 35. Fixing bolt. Detailed implementation mode

[0020] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0021] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the limitations of the specific embodiments disclosed in the following specification.

[0022] Embodiment 1

[0023] As Figures 1-3 shown, the present invention provides an expandable spinal microchannel system, including a base 1. Two groups of expanding mechanisms 2 are arranged on one side of the base 1. The expanding mechanism 2 includes a sliding seat 21, a paddle 22, a micro steering gear 23, a fixed seat 24 and a connecting seat 25. One side of the connecting seat 25 is clamped with an expanding piece 26. Two groups of limiting blocks 27 are fixedly installed on one side of the expanding piece 26. A vision slot 28 is penetrated and opened inside the expanding piece 26. One side of the expanding piece 26 is slidably connected with a rotating piece 29. A limiting ring 210 is fixedly installed on one side of the rotating piece 29. The bottom of the sliding seat 21 is slidably connected with the top of the base 1. The bottom of the paddle 22 is fixedly connected with the top of the sliding seat 21. One side of the micro steering gear 23 is fixedly connected with one side of the base 1. One side of the fixed seat 24 is fixedly connected with one side of the micro steering gear 23. One side of the connecting seat 25 is fixedly connected with one side of the fixed seat 24. Both groups of limiting blocks 27 are mutually clamped with one side of the connecting seat 25. The rotating piece 29 is arranged on one side of the vision slot 28.

[0024] The specific configuration and function of this embodiment are described in detail below. When surgery is required on the patient's spine, the fixing mechanism 3 is first used to open the wound, and then the two sets of opening pieces 26 are placed on one side of the two sets of fixing pieces 31 respectively. At this time, the two sets of opening pieces 26 are in the shape of a trumpet with the opening downward. Then, the wound is expanded as needed. The doctor manually opens the two sets of paddles 22. The interior of the base 1 and the bottom of the sliding seat 21 have a locking mechanism, so that the sliding seat 21 can be fixed at a certain position on the top of the base 1. At the same time, the two sets of micro-steering devices 23 are started to drive the two sets of fixing seats 24 and the connecting seat 25 to turn outward, thereby opening the wound. The opening is expanded, and then the working channel is placed between the two sets of expansion pieces 26 to operate the current exposure range. When the exposure range needs to be changed, the doctor inserts tweezers into the inside of the limiting ring 210, and adjusts the limiting ring 210 to drive the rotating piece 29 to slide inside the expansion piece 26, so that the field of view groove 28 exposes the field of view on one side of the expansion piece 26. By setting the expansion mechanism 2, the channel can be expanded step by step, and channels of different calibers can be selected according to the requirements of the operation. The setting of the rotating piece 29 can control the field of view in the wound without weakening the supporting effect of the expansion piece 26, thereby achieving 360° full field of view observation and operation in the wound.

[0025] Embodiment 2

[0026] like Figure 1 and Figure 4 As shown, a fixing mechanism 3 is provided on one side of the expansion piece 26, and the fixing mechanism 3 includes a fixing piece 31, a screw 32, a nut seat 33, a support rod 34 and a fixing bolt 35. The top of the screw 32 passes through the bottom of the fixing piece 31, the outer wall of the nut seat 33 is clamped with the inner wall of the fixing piece 31, the outer wall of the fixing bolt 35 is threadedly connected with the inner wall of the nut seat 33, the fixing bolt 35 passes through the interior of the support rod 34, and the bottom of the fixing bolt 35 is clamped with the top of the screw 32.

[0027] The effect achieved by the entire embodiment is that when performing spinal surgery on a patient, the fixing bolt 35 is first threadedly rotated into the interior of the nut seat 33. The outer wall of the nut seat 33 and the inner wall of the fixing plate 31 have resistance, so that the bottom of the fixing bolt 35 and the top of the screw 32 are mutually engaged, and then the fixing bolt 35 is continued to be rotated. At the same time, the fixing bolt 35 will drive the nut seat 33 to rotate inside the fixing plate 31, so that the screw 32 is obliquely nailed into the vicinity of the spine, and then the fixing bolt 35 is reversed to be removed, and then the support rod 34 is inserted between the two groups of fixing plates 31 and the nut seat 33, and then the fixing bolt 35 is passed through the two groups of nut seats 33 and the support rod 34. By setting the fixing mechanism 3, the doctor is helped to use the expansion mechanism 2 to expand the wound, which is convenient for fixing and supporting the tissue around the wound, keeping the surgical area stable, and facilitating the doctor to perform precise operations, reduce surgical risks, expand the surgical field of view and operating space, make it easier for the doctor to observe and operate, reduce friction and extrusion between tissues, reduce tissue damage and bleeding risks, and improve surgical accuracy and success rate.

[0028] The method of use and working principle of the device are as follows: when surgery is required on the patient's spine, first, the fixing bolt 35 is threadedly rotated into the interior of the nut seat 33. The outer wall of the nut seat 33 and the inner wall of the fixing plate 31 have resistance, so that the bottom of the fixing bolt 35 and the top of the screw 32 are engaged with each other, and then the fixing bolt 35 is continued to be rotated. At the same time, the fixing bolt 35 will drive the nut seat 33 to rotate inside the fixing plate 31, so that the screw 32 is tilted and nailed near the spine. The fixing bolt 35 is then reversed to remove it, and the support rod 34 is then inserted between the two sets of fixing plates 31 and the nut seat 33, and then the fixing bolt 35 is passed through the interior of the two sets of nut seats 33 and the support rod 34, and then the two sets of spreader plates 26 are respectively placed on one side of the two sets of fixing plates 31. At this time, the two sets of spreading pieces 26 are in the shape of a trumpet with their openings pointing downwards. Then, the wound is expanded as needed. The doctor manually opens the two sets of paddles 22. The interior of the base 1 and the bottom of the sliding seat 21 have a locking mechanism, so that the sliding seat 21 can be fixed at a certain position on the top of the base 1. At the same time, the two sets of micro-steering devices 23 are started to drive the two sets of fixing seats 24 and the connecting seat 25 to turn outward, thereby expanding the wound. Then, the working channel is placed between the two sets of spreading pieces 26 to operate the current exposure range. When the exposure range needs to be changed, the doctor inserts tweezers into the interior of the limit ring 210, and dials the limit ring 210 to drive the rotating piece 29 to slide inside the spreading piece 26, so that the field of view slot 28 exposes the field of view on one side of the spreading piece 26. The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An expandable spinal microchannel system, comprising a base (1), characterized in that: Two groups of opening mechanisms (2) are arranged on one side of the base (1), and the opening mechanisms (2) include a sliding seat (21), a paddle (22), a micro-steering device (23), a fixed seat (24) and a connecting seat (25); an opening piece (26) is clamped on one side of the connecting seat (25); two groups of limit blocks (27) are fixedly installed on one side of the opening piece (26); a viewing groove (28) is provided through the inside of the opening piece (26); a rotating piece (29) is slidably connected to one side of the opening piece (26); and a limit ring (210) is fixedly installed on one side of the rotating piece (29).

2. The expandable spinal microchannel system according to claim 1, characterized in that: The bottom of the sliding seat (21) is slidably connected to the top of the base (1), and the bottom of the paddle (22) is fixedly connected to the top of the sliding seat (21).

3. The expandable spinal microchannel system according to claim 1, characterized in that: One side of the micro-steering device (23) is fixedly connected to one side of the base (1), one side of the fixing seat (24) is fixedly connected to one side of the micro-steering device (23), and one side of the connecting seat (25) is fixedly connected to one side of the fixing seat (24).

4. The expandable spinal microchannel system according to claim 1, characterized in that: The two groups of limit blocks (27) are mutually engaged with one side of the connecting seat (25), and the rotating piece (29) is arranged on one side of the viewing groove (28).

5. The expandable spinal microchannel system according to claim 1, characterized in that: A fixing mechanism (3) is provided on one side of the expansion piece (26), and the fixing mechanism (3) comprises a fixing piece (31), a screw (32), a nut seat (33), a support rod (34) and a fixing bolt (35).

6. The expandable spinal microchannel system according to claim 5, characterized in that: The top of the screw (32) passes through the bottom of the fixing plate (31), and the outer wall of the nut seat (33) is clamped with the inner wall of the fixing plate (31).

7. The expandable spinal microchannel system according to claim 5, characterized in that: The outer wall of the fixing bolt (35) is threadedly connected to the inner wall of the nut seat (33), the fixing bolt (35) passes through the interior of the support rod (34), and the bottom of the fixing bolt (35) is clamped with the top of the screw (32).

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