Double-channel endoscope drainage osteotome

Abstract

The utility model provides a double-channel endoscope drainage osteotome, and belongs to the technical field of medical instruments. The utility model provides a double-channel endoscopic drainage osteotome which comprises an osteotome body, a tool bit is arranged at the lower end of the osteotome body, a drainage groove is formed in the osteotome body, the drainage groove is formed in the length direction of the osteotome body, and the drainage groove extends to the upper end of the tool bit. According to the double-channel endoscope drainage osteotome, the drainage groove is formed in the length direction of the osteotome body, cleaning water can flow out of the body of a patient through the drainage groove, the cleaning water is prevented from being accumulated in the body of the patient, the drainage efficiency is improved, and the operation duration is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical instruments, and in particular relates to a double-channel endoscopic drainage osteotome. Background Art

[0002] Unilateral dual-channel endoscopic technology is suitable for degenerative lesions of the cervical, thoracic, and lumbar spine. It offers advantages such as small incisions, minimal pain, and rapid recovery. Unlike the single-channel approach of transforaminal endoscopic discectomy, unilateral dual-channel endoscopic technology typically establishes two channels: one for observation and one for instrument manipulation. The observation channel is generally used for endoscopic insertion, while the manipulation channel is generally used for conventional spinal surgery and sports medicine instruments such as curettes, burrs, osteotome, bone forceps, and nerve retractors. During the operation of unilateral dual-channel endoscopic technology, bone knives are often used to remove bone. In order to ensure a clear field of view during operation, a large amount of normal saline is required as flushing water for continuous flushing. The flushing water can ensure a clean field of view and prevent blood from contaminating the lens and causing unclear vision. However, due to the particularity of the surgical position, the structure of the waist and back itself, and the characteristics of the operation itself, the flushing water is prone to incomplete drainage, which will lead to reduced clarity of the surgical operation area and increased difficulty of the operation. In addition, waste water and waste liquid may leak out through the inherent channels of the endoscopic device, which may contaminate the surgeon's surgical gown, violate the principle of sterility, and require re-surgery and replacement of surgical gowns. It may also damage external equipment. Due to the increase in water pressure, nerve root damage may occur, increasing the difficulty of the operation and prolonging the operation time. Utility Model Content

[0003] The utility model aims to provide a double-channel endoscopic drainage bone knife, aiming to solve the problem that cleaning water is difficult to be discharged when the bone knife is used in the unilateral double-channel endoscopic technology.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a dual-channel endoscopic drainage bone knife, including a bone knife body, a knife head is provided at the lower end of the bone knife body, and a drainage groove is provided on the bone knife body. The drainage groove is arranged along the length direction of the bone knife body and extends to the upper end of the knife head.

[0005] In a possible implementation, a depth-limiting sleeve is provided on the outer side of the bone cutter body, a depth-limiting block is provided on the upper end of the depth-limiting sleeve, and the depth-limiting sleeve limits the depth of the bone cutter body entering the channel.

[0006] In a possible implementation, a clamping piece is provided on the depth-limiting clamping block, and the clamping piece is clamped on the outer side of the osteotome body.

[0007] In a possible implementation, the depth limiting block is provided with a clearance hole suitable for the bone knife body to pass through, the clamping part is provided on the side wall of the depth limiting block, and the clamping part is pressed against the outer side of the bone knife body.

[0008] In one possible implementation, the clamping member is in the shape of an elongated ring, suitable for the penetration of the bone knife body, and has the freedom to move in the side wall of the depth limiting block. A pressing block is provided at the first end of the clamping member, and the pressing block passes through the side wall of the depth limiting block. A push spring is provided between the second end of the clamping member and the side wall of the depth limiting block.

[0009] In a possible implementation, the upper end of the bone cutter body is provided with a plurality of annular slots, and the inner side wall of the second end of the clamping component is provided with a clamping strip matching the annular slots.

[0010] In a possible implementation, the upper end of the drainage groove is arranged below the annular groove.

[0011] In a possible implementation, a plurality of drainage holes are provided on the wall of the depth limiting sleeve.

[0012] In a possible implementation, the lower end of at least one group of the drainage holes is located below the upper end of the drainage groove.

[0013] In a possible implementation, the lower end of the cutter head is an arc-shaped cutting edge.

[0014] The double-channel endoscopic drainage osteotome provided by the utility model has the following beneficial effects:

[0015] Compared with the existing technology, a bone knife body is provided, and a knife head is provided at the lower end of the bone knife body for performing bone cutting operations. A drainage groove is provided on the bone knife body and is provided along the length direction of the bone knife body. The drainage groove extends from the upper end of the bone knife body to the upper end of the knife head. Cleaning water can flow out of the patient's body through the drainage groove, avoiding the accumulation of cleaning water in the patient's body, improving drainage efficiency, and shortening the operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A schematic diagram of the front view structure of a dual-channel endoscopic drainage osteotome provided in an embodiment of the utility model;

[0018] Figure 2 This is a front view structural diagram of the bone knife body used in the embodiment of the present utility model;

[0019] Figure 3 A schematic diagram of the right side structure of the bone knife body used in the embodiment of the present utility model;

[0020] Figure 4 for Figure 3 The schematic cross-sectional structure diagram of the bone knife body shown;

[0021] Figure 5 for Figure 2 A partial enlarged structural diagram of the bone knife body is shown;

[0022] Figure 6 This is a schematic diagram of the partial cross-sectional structure of the dual-channel endoscopic drainage osteotome provided in an embodiment of the utility model.

[0023] In the figure: 1. Gripping handle; 2. Depth limit block; 3. Pressing block; 4. Clamping piece; 5. Clamping strip; 6. Push spring; 7. Depth limit sleeve; 8. Drainage hole; 9. Bone knife body; 10. Annular groove; 11. Drainage groove; 12. Transition part; 13. Knife head. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] Please refer to Figures 2 to 5 Now, a specific embodiment of a dual-channel endoscopic drainage bone knife provided by the utility model is described, which includes a bone knife body 9, a knife head 13 is provided at the lower end of the bone knife body 9, and a drainage groove 11 is provided on the bone knife body 9. The drainage groove 11 is arranged along the length direction of the bone knife body 9 and extends to the upper end of the knife head 13.

[0026] The utility model provides a dual-channel endoscopic drainage bone knife. Compared with the existing technology, the bone knife body 9 and the knife head 13 are arranged at the lower end of the bone knife body 9 for performing bone cutting operations. The drainage groove 11 is arranged on the bone knife body 9 and is arranged along the length direction of the bone knife body 9. The drainage groove 11 extends from the upper end of the bone knife body 9 to the upper end of the knife head 13. Cleaning water can flow out of the patient's body through the drainage groove 11, avoiding the accumulation of cleaning water in the patient's body, improving drainage efficiency, and shortening the operation time.

[0027] For details, please refer to Figures 2 to 5, including a bone knife body 9, the upper end of the bone knife body 9 is provided with a gripping handle 1, which is convenient for holding the bone knife body 9, and a knife head 13 is provided at the lower end of the bone knife body 9. A transition portion 12 is provided between the knife head 13 and the bone knife body 9. The thickness of the transition portion 12 gradually decreases as it moves away from the bone knife body 9, and the thickness of the knife head 13 gradually decreases as it moves away from the bone knife body 9. The knife head 13 is used for bone cutting operations, and the drainage groove 11 is arranged along the length direction of the bone knife body 9. The upper end of the drainage groove 11 is located at the upper part of the bone knife body 9, and the lower end of the drainage groove 11 is located above the transition portion 12. The groove wall of the drainage groove 11 is arc-shaped, and there is an arc transition between the surface of the bone knife body 9 and the groove wall of the drainage groove 11, which is convenient for the discharge of cleaning water, avoids the accumulation of cleaning water in the patient's body, improves the drainage efficiency, and shortens the operation time.

[0028] As a specific embodiment of the dual-channel endoscopic drainage osteotome provided by the present invention, please refer to Figure 1 、 Figure 6 A depth limiting sleeve 7 is provided on the outside of the bone cutter body 9, and a depth limiting block 2 is provided on the upper end of the depth limiting sleeve 7. The depth limiting sleeve 7 limits the depth of the bone cutter body 9 entering the channel.

[0029] For details, please refer to Figure 1 、 Figure 6 The depth limiting sleeve 7 is sleeved on the outside of the bone knife body 9 and is arranged on the upper part of the bone knife body 9. The depth limiting block 2 is arranged on the upper end of the depth limiting sleeve 7. The depth limiting block 2 is placed on the outside of the channel, thereby limiting the depth of the bone knife body 9 entering the channel, avoiding unnecessary damage to the patient during the operation.

[0030] As a specific embodiment of the dual-channel endoscopic drainage osteotome provided by the present invention, please refer to Figure 1 、 Figure 6 The depth limiting block 2 is provided with a clamping part 4, which is clamped on the outer side of the bone cutter body 9.

[0031] For details, please refer to Figure 1 、 Figure 6 The clamping part 4 is set on the depth limiting block 2, and the clamping part 4 is clamped on the bone knife body 9 to fix the depth limiting block 2 on the bone knife body 9, thereby increasing the stability of the connection between the depth limiting block 2 and the bone knife body 9, and avoiding the depth limiting block 2 and the bone knife body 9 from slipping during use, which affects the use of the device.

[0032] As a specific embodiment of the dual-channel endoscopic drainage osteotome provided by the present invention, please refer to Figure 1 、 Figure 6 The depth limiting block 2 is provided with a clearance hole suitable for the bone knife body 9 to pass through, and the clamping member 4 is provided on the side wall of the depth limiting block 2, and the clamping member 4 is against the outer side of the bone knife body 9.

[0033] For details, please refer to Figure 1 、 Figure 6 A clearance hole is provided on the depth limiting block 2, and the clearance hole is set through the upper and lower end surfaces of the depth limiting block 2. The bone knife body 9 passes through the clearance hole. The clamping part 4 is set on the side wall of the clearance hole. The clamping part 4 is against the outer side of the bone knife body 9 to realize the clamping of the bone knife body 9.

[0034] As a specific embodiment of the dual-channel endoscopic drainage osteotome provided by the present invention, please refer to Figure 1 、 Figure 6 The clamping member 4 is in the shape of an elongated ring and is suitable for the insertion of the bone knife body 9. The clamping member 4 has the freedom to move in the side wall of the depth limiting block 2. A pressing block 3 is provided at the first end of the clamping member 4. The pressing block 3 passes through the side wall of the depth limiting block 2. A pushing spring 6 is provided between the second end of the clamping member 4 and the side wall of the depth limiting block 2.

[0035] For details, please refer to Figure 1 、 Figure 6 , the clamping piece 4 is in the shape of an elongated ring, the bone knife body 9 passes through the clamping piece 4, the length between the first end and the second end of the clamping piece 4 is greater than the diameter of the bone knife body 9, the side wall of the depth limiting block 2 is provided with an elongated ring groove, the elongated ring groove is in the shape of an elongated ring, the clamping piece 4 is arranged in the elongated ring groove, the first end of the clamping piece 4 matches the first end of the elongated ring groove, both are in the shape of an arc, the second end of the clamping piece 4 matches the second end of the elongated ring groove, both are in the shape of an arc, the length from the first end to the second end of the elongated ring groove is greater than the length from the first end to the second end of the clamping piece 4, in the elongated ring groove, The clamping part 4 has the freedom of movement from the first end of the long circular groove to the second end of the long circular groove. The pressing block 3 is arranged at the first end of the clamping part 4. The pressing block 3 passes through the side wall of the first end of the long circular groove. The clamping part 4 is pushed to move by pressing the pressing block 3. The pushing spring 6 is arranged between the second end of the clamping part 4 and the groove wall of the second end of the long circular groove. The pushing spring 6 pushes the clamping part 4 onto the bone knife body 9, thereby locking the depth limit block 2 and the bone knife body 9. Pressing the pressing block 3 pushes the clamping part 4 away from the bone knife body 9, thereby unlocking the depth limit block 2 and the bone knife body 9.

[0036] As a specific embodiment of the dual-channel endoscopic drainage osteotome provided by the present invention, please refer to Figures 1 to 6 The upper end of the bone cutter body 9 is provided with multiple groups of annular grooves 10, and the inner side wall of the second end of the clamping member 4 is provided with a clamping strip 5 matching the annular grooves 10.

[0037] For details, please refer to Figures 1 to 6The annular groove 10 is arranged around the upper part of the bone knife body 9, and the distances between multiple groups of annular grooves 10 are equal. The inner side wall of the second end of the clamping part 4 is provided with a clamping strip 5, and the clamping strip 5 matches the annular groove 10. When the pushing spring 6 pushes the clamping part 4 onto the bone knife body 9, the clamping strip 5 is clamped into the annular groove 10, thereby increasing the stability of the device.

[0038] As a specific embodiment of the dual-channel endoscopic drainage osteotome provided by the present invention, please refer to Figures 1 to 6 The upper end of the drainage groove 11 is arranged below the annular groove 10.

[0039] For details, please refer to Figures 1 to 6 The upper end of the drainage groove 11 is located below the annular groove 10 at the lower end, so as to avoid the setting of the drainage groove 11 affecting the depth limiting block 2 being mounted on the bone cutter body 9.

[0040] As a specific embodiment of the dual-channel endoscopic drainage osteotome provided by the present invention, please refer to Figure 1 、 Figure 6 , a plurality of drainage holes 8 are provided on the wall of the depth limiting sleeve 7.

[0041] For details, please refer to Figure 1 、 Figure 6 The wall of the depth-limiting sleeve 7 is provided with drainage holes 8, and multiple groups of drainage holes 8 are provided. Multiple groups of drainage holes 8 are arranged around the wall of the depth-limiting sleeve 7 to facilitate the discharge of cleaning water.

[0042] As a specific embodiment of the dual-channel endoscopic drainage osteotome provided by the present invention, please refer to Figure 1 、 Figure 6 , the lower end of at least one group of drainage holes 8 is located below the upper end of the drainage groove 11.

[0043] For details, please refer to Figure 1 、 Figure 6 When the depth limiting block 2 is mounted on the annular groove 10 at the upper end of the bone cutter body 9, the lower end of at least one group of drainage holes 8 is lower than the upper end of the drainage groove 11, which is convenient for the discharge of cleaning water.

[0044] As a specific embodiment of the dual-channel endoscopic drainage osteotome provided by the present invention, please refer to Figures 1 to 4 , the lower end of the cutter head 13 is an arc-shaped cutting edge.

[0045] For details, please refer to Figures 1 to 4 The cutting edge at the lower end of the blade 13 is an arc-shaped cutting edge, that is, the cross-section of the blade 13 perpendicular to the length direction of the bone knife body 9 is an arc shape, and the thickness of the blade 13 perpendicular to the length direction of the bone knife body 9 gradually decreases as it moves away from the bone knife body 9.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dual-channel endoscopic drainage osteotome, characterized in that: It includes a bone knife body, a knife head is provided at the lower end of the bone knife body, a drainage groove is provided on the bone knife body, the drainage groove is provided along the length direction of the bone knife body, and the drainage groove extends to the upper end of the knife head. A depth limiting sleeve is provided on the outer side of the bone knife body, a depth limiting block is provided on the upper end of the depth limiting sleeve, the depth limiting sleeve limits the depth of the bone knife body entering the channel, and multiple groups of drainage holes are provided on the wall of the depth limiting sleeve.

2. A dual-channel endoscopic drainage osteotome according to claim 1, characterized in that: The depth-limiting clamping block is provided with a clamping piece, and the clamping piece is clamped on the outer side of the bone cutter body.

3. The dual-channel endoscopic drainage osteotome according to claim 2, characterized in that: The depth-limiting block is provided with a clearance hole suitable for the bone cutter body to pass through, and the clamping piece is provided on the side wall of the depth-limiting block, and the clamping piece is pressed against the outer side of the bone cutter body.

4. A dual-channel endoscopic drainage osteotome according to claim 3, characterized in that: The clamping part is in the shape of an elongated ring and is suitable for the penetration of the bone knife body. The clamping part has the freedom to move in the side wall of the depth limiting block. A pressing block is provided at the first end of the clamping part, and the pressing block passes through the side wall of the depth limiting block. A push spring is provided between the second end of the clamping part and the side wall of the depth limiting block.

5. The double-channel endoscopic drainage osteotome according to claim 4, characterized in that: The upper end of the bone cutter body is provided with a plurality of annular slots, and the inner side wall of the second end of the clamping component is provided with a clamping strip matching the annular slots.

6. The double-channel endoscopic drainage osteotome according to claim 5, characterized in that: The upper end of the drainage groove is arranged below the annular clamping groove.

7. The dual-channel endoscopic drainage osteotome according to claim 1, characterized in that: The lower end of at least one group of the drainage holes is located below the upper end of the drainage groove.

8. The dual-channel endoscopic drainage osteotome according to claim 1, characterized in that: The lower end of the cutter head is an arc-shaped cutting edge.

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