Intervertebral foramen visual trephine

Abstract

The utility model discloses an intervertebral foramen visual trephine which comprises a trephine tube and a second clamping seat, and relates to the technical field of medical instruments. According to the visible trephine for the foramen intervertebrale, the trephine pipe is arranged to be hollow, so that an endoscope can be easily inserted into the trephine pipe, cooperative work under the visible condition is facilitated, the safety of an operation is improved, the positioning end is arranged at the end of the catheter, and the positioning end can cover the length range of a hyperplasia focus in advance in a non-contact semi-arc mode; secondly, the positioning ring, the first clamping seat and the second clamping seat which can be locked and adjusted are arranged on the surface of the catheter, so that the progressive cutting distance of the trephine tube can be adjusted according to the position and the length of the focus, and the cutting accuracy is improved. And the trephine pipe can finish progressive cutting with the consistent accurate length through the follow-up advancing abutting fit of the cross-shaped handle and the second clamping seat.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an intervertebral foramen visual trephine saw. Background Art

[0002] Herniated disc is the main cause of back pain in many patients. "Perforaminal endoscopic disc technology" is often used to treat herniated disc due to its characteristics of less trauma, quick recovery and low cost. The visible working environment under the "perforaminal endoscopic disc technology" is particularly important for the operation process of the ring saw. It can effectively avoid or remove bone tissue that blocks the catheterization and can monitor the specific conditions of the operation site in real time, all of which affect the safety of the use of the ring saw to varying degrees.

[0003] Although the intervertebral foraminal visual ring saw is convenient for cutting lesions, it is inevitable that there are still some shortcomings in its actual use. For example, the device lacks guidance and precise positioning of the cutting depth mechanism, so that the precise resection of the lesion length is inconvenient to be performed with precise guidance of external mechanisms, resulting in a more time-consuming and labor-intensive operation.

[0004] Therefore, the utility model provides an intervertebral foramen visual trephine to solve the above problems. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a visual intervertebral foraminal ring saw, which solves the problem that the device lacks guidance and precise positioning of the cutting depth mechanism, so that the precise resection of the lesion length is inconvenient to be guided by external mechanisms, resulting in a more time-consuming and labor-intensive operation.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a visual intervertebral foramen ring saw, comprising a ring saw tube and a second holder, the second holder being slidably arranged on the surface of the ring saw tube, a catheter being slidably arranged on the surface of the ring saw tube and located on one side of the second holder, one end of the catheter being provided with a positioning end head, the surface of the catheter being fixedly connected with a stop plate, a first holder being slidably arranged on the surface of the catheter, the front and rear sides of one side of the first holder being fixedly connected with a positioning plug plate, the front and rear sides of one side of the second holder being provided with a positioning slot for use with the positioning plug plate, and the length of the positioning slot being provided is shorter than the protruding length of the positioning plug plate, the surface of the catheter being slidably provided with a positioning ring for use with the first holder, the top of the positioning ring being provided with a first screw hole, the internal thread of the first screw hole being connected with a positioning bolt for use with the catheter.

[0007] Preferably, a cross handle is fixedly connected to the surface of the ring saw tube, and a handwheel ring cover is provided on the surface of the cross handle. The inner wall of the handwheel ring cover is equidistantly provided with a plurality of handle slots for use with the cross handle.

[0008] Preferably, a second screw hole is formed on the inner wall of the handle slot, and the second screw hole extends to the outside of the handwheel ring cover.

[0009] Preferably, the internal thread of the second screw hole is connected to a tightening bolt used in conjunction with the cross handle.

[0010] Beneficial effects

[0011] The utility model provides a visual intervertebral foraminal trephine. Compared with the existing technology, the utility model has the following beneficial effects: by setting the trephine tube to be hollow, the interior of the trephine tube is easy to insert an endoscope, which is convenient for collaborative work under visual conditions and improves the safety of the operation; by setting a positioning terminal at the end of the catheter, the positioning terminal can pre-cover the length range of the hyperplastic lesion in a non-contact semi-arc shape, providing the trephine tube with a correct cutting surgical guide direction and accurately cutting the lesion; secondly, a lockable and adjustable positioning ring, a first clamping seat and a second clamping seat are set on the surface of the catheter, so that the progressive cutting distance of the trephine tube can be adjusted to match the length of the lesion through the above positions, so that the trephine tube can cooperate with the subsequent movement of the second clamping seat through the cross handle to complete the progressive cutting of the precise length, avoid the trephine tube progressive cutting exceeding the lesion length and causing harm to the human body, further improving the safety of the operation; secondly, a handwheel ring cover is added to the surface of the cross handle, so that the handwheel ring cover is easy for the operator to rotate and drive the trephine tube, reducing the operating pressure, alleviating the fatigue of the user, and shortening the operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the external structure of the utility model;

[0013] Figure 2 It is a cross-sectional view of the structure of the utility model;

[0014] Figure 3 This is a cross-sectional view of the ring saw tube structure of the utility model;

[0015] Figure 4 It is a schematic diagram of the catheter structure of the utility model;

[0016] Figure 5 This is a schematic diagram of the ring saw tube structure of the utility model;

[0017] Figure 6 This is a schematic diagram of the hand wheel ring cover structure of the utility model;

[0018] Figure 7 This is a side view of the hand wheel ring cover structure of the utility model;

[0019] Figure 8 This is a half-section expanded view of the first and second card holder structures of the utility model;

[0020] Figure 9 A half-section view of the first and second card holder structures of the present invention;

[0021] Figure 10 This is an expanded view of the positioning ring and positioning bolt structure of the utility model.

[0022] In the figure: 1. Ring saw tube; 2. Conduit; 2-1. Positioning end; 3. First holder; 3-1. Positioning plug plate; 4. Stop plate; 5. Second holder; 5-1. Positioning slot; 6. Cross handle; 9. Tightening bolt; 10. Handwheel ring cover; 10-1. Handle slot; 10-2. Second screw hole; 12. Positioning ring; 12-1. First screw hole; 13. Positioning bolt. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] See also Figure 1-10 The utility model provides a technical solution: an intervertebral foramen visual ring saw, comprising a ring saw tube 1 and a second holder 5.

[0025] Furthermore: In order to facilitate the coordinated endoscopic visual surgery and guide the cutting direction of the ring saw tube 1, the second clamping seat 5 is slidably set on the surface of the ring saw tube 1, and a catheter 2 is slidably set on the surface of the ring saw tube 1 and located on one side of the second clamping seat 5. A positioning terminal 2-1 is set at one end of the catheter 2, and a stop plate 4 is fixedly connected to the surface of the catheter 2, and a cross handle 6 is fixedly connected to the surface of the ring saw tube 1.

[0026] Furthermore: In order to facilitate the adjustment of the cutting length to match the lesion and perform precise guidance, a first clamping seat 3 is slidably provided on the surface of the catheter 2, and the front and rear sides of one side of the first clamping seat 3 are fixedly connected with a positioning plug plate 3-1, and the front and rear sides of one side of the second clamping seat 5 are provided with a positioning slot 5-1 for use with the positioning plug plate 3-1, and the length of the positioning slot 5-1 is shorter than the extended length of the positioning plug plate 3-1, and a positioning ring 12 for use with the first clamping seat 3 is slidably provided on the surface of the catheter 2, and a first screw hole 12-1 is provided on the top of the positioning ring 12, and the internal thread of the first screw hole 12-1 is connected to a positioning bolt 13 for use with the catheter 2.

[0027] Furthermore: in order to reduce the pressure of the rotation operation, a handwheel ring cover 10 is provided on the surface of the cross handle 6, and a number of handle slots 10-1 for use with the cross handle 6 are equidistantly opened on the inner wall of the handwheel ring cover 10. A second screw hole 10-2 is opened on the inner wall of the handle slot 10-1, and the second screw hole 10-2 extends to the outside of the handwheel ring cover 10. The internal thread of the second screw hole 10-2 is connected to a tightening bolt 9 for use with the cross handle 6.

[0028] Before use: put the handwheel ring cover 10 on the surface of the cross handle 6 to make the handle slot 10-1 fit with the cross handle 6, then use the tightening bolt 9 to screw the second screw hole 10-2 to make the tightening bolt 9 pass through the handle slot 10-1 and tighten the cross handle 6.

[0029] During use: a small incision is made in the skin of the back, and then an endoscope is passed through the trephine tube 1 for visual observation. Then, the trephine tube 1 and the trephine tube 1 are delivered to the intervertebral space through the incision channel and the holding catheter 2, and the positioning end 2-1 of the catheter 2 is placed around the lesion, so that the blade end of the trephine tube 1 is aligned with the hyperplastic lesion.

[0030] Observe the length of the hyperplasia through the endoscope, then continue to hold the catheter 2, and then reversely screw the positioning bolt 13 to cause the positioning ring 12 and the positioning bolt 13 to disengage from the outer wall of the catheter 2, and then slide it horizontally to the left to adjust the depth of the hyperplasia to be removed next. After the distance is accurately adjusted, reset the positioning bolt 13 and screw the depth to cause the positioning ring 12 and the positioning bolt 13 to be fixed at the position after the distance is adjusted on the surface of the catheter 2. Then, simultaneously slide the first clamping seat 3 and the second clamping seat 5 to the left to cause the first clamping seat 3 to continue to fit with the side of the positioning ring 12. At this time, the free space between the second clamping seat 5 and the cross handle 6 is the precise depth of the next rotational removal of the ring saw tube 1;

[0031] Then the ring saw tube 1 is moved while rotating to prompt the ring saw tube 1 to continuously remove the hyperplasia. After the cross handle 6 gradually moves to the left and is blocked by the second clamping seat 5 that is inserted and positioned by the first clamping seat 3, the overall removal of the hyperplasia is completed.

Claims

1. A visual intervertebral foraminal trephine, comprising a trephine tube (1) and a second holder (5), wherein the second holder (5) is slidably arranged on the surface of the trephine tube (1), characterized in that: A conduit (2) is slidably provided on the surface of the ring saw tube (1) and located on one side of the second clamping seat (5); a positioning end (2-1) is provided at one end of the conduit (2); a stop plate (4) is fixedly connected to the surface of the conduit (2); a first clamping seat (3) is slidably provided on the surface of the conduit (2); a positioning plug plate (3-1) is fixedly connected to the front and rear sides of one side of the first clamping seat (3); a positioning slot (5-1) used in conjunction with the positioning plug plate (3-1) is provided on the front and rear sides of one side of the second clamping seat (5); and the length of the positioning slot (5-1) is shorter than the extended length of the positioning plug plate (3-1); a positioning ring (12) used in conjunction with the first clamping seat (3) is slidably provided on the surface of the conduit (2); a first screw hole (12-1) is provided at the top of the positioning ring (12); and a positioning bolt (13) used in conjunction with the conduit (2) is threadedly connected to the inner portion of the first screw hole (12-1).

2. The intervertebral foraminal visual trephine according to claim 1, characterized in that: A cross handle (6) is fixedly connected to the surface of the ring saw tube (1), a hand wheel ring cover (10) is sleeved on the surface of the cross handle (6), and a plurality of handle slots (10-1) for use with the cross handle (6) are equidistantly arranged around the inner wall of the hand wheel ring cover (10).

3. The intervertebral foraminal visual trephine according to claim 2, characterized in that: A second screw hole (10-2) is provided on the inner wall of the handle slot (10-1), and the second screw hole (10-2) extends to the outside of the hand wheel ring cover (10).

4. The intervertebral foraminal visual trephine according to claim 3, characterized in that: The internal thread of the second screw hole (10-2) is connected to a tightening bolt (9) used in conjunction with the cross handle (6).

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