Ultrasonic osteotome used under transforaminal endoscopy

Abstract

The present invention discloses an ultrasonic bone knife used under a percutaneous foraminal endoscope, comprising a knife bar, a knife head and a crescent groove with cutting teeth and grinding teeth, wherein the knife bar is provided with the knife head at one end, the knife head is provided with the crescent groove, the inner end of the crescent groove is provided with a first tooth vertical line, the outer side wall of the knife head is provided with a second tooth vertical line, the front end has a cutting line, and the other end of the knife bar is provided with a joint. The beneficial effect is that by providing the knife head, the crescent groove with cutting teeth and grinding teeth, the first tooth vertical line and the second tooth vertical line, not only can the bone cutting condition of the patient be observed by the doctor through the percutaneous foraminal endoscope during bone cutting, which is convenient for the doctor to accurately control the cutting process and improve the bone cutting efficiency, but also the knife head can be stably placed relative to the patient's bone during bone cutting, and at the same time, the bone tissue around the bone cutting part of the patient can be polished during the bone cutting process to avoid damage to the bone tissue of the part that does not need to be cut, thereby improving the safety of the bone cutting process.

Description

Technical Field

[0001] The invention relates to the technical field of medical ultrasonic bone cutting tools, and in particular to an ultrasonic bone cutter used under a transforaminal endoscope. Background Art

[0002] The ultrasonic bone knife is a medical device that uses the principle of ultrasonic vibration to perform bone cutting surgery. It cuts accurately and short-term contact will not damage surrounding tissues. It is mainly used in some precision orthopedic surgeries.

[0003] However, the current ultrasonic bone knife heads mainly adopt a solid structure, which results in the doctor's tail of the bone cutting being unable to be seen when the ultrasonic bone knife is in use, making it inconvenient for the doctor to accurately control the bone cutting site, greatly reducing the efficiency of bone cutting. At the same time, since the head of the ultrasonic bone knife is relatively smooth, the ultrasonic bone knife is easy to damage the peripheral tissue of the bone cutting site when in use, reducing the safety of the bone cutting process. Summary of the invention

[0004] The purpose of the present invention is to provide an ultrasonic osteotome for use under transforaminal endoscopy in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] The ultrasonic bone knife used under the percutaneous foraminal endoscope comprises a knife rod, a knife head and a crescent groove with cutting teeth and grinding teeth. The knife head is arranged at one end of the knife rod, the crescent groove is arranged in the knife head, the inner end of the crescent groove is arranged with a first vertical tooth line, the outer side wall of the knife head is arranged with a second vertical tooth line, the front end has a cutting line, and the other end of the knife rod is arranged with a joint, and the joint is installed with a fastening screw line.

[0007] Furthermore, the cutter head is formed on the cutter rod, and both the cutter rod and the cutter head are made of medical titanium.

[0008] By adopting the above solution, the normal use of the knife rod and the knife head can be ensured.

[0009] Furthermore, the joint is formed on the knife rod, and the fastening screw pattern is formed on the joint.

[0010] By adopting the above solution, the joint can realize a convenient connection between the knife rod and an external ultrasonic generator.

[0011] Furthermore, the crescent groove is formed on the cutter head, and a hollow structure is adopted on the cutter head at the crescent groove.

[0012] By adopting the above solution, the crescent groove can expose the bone cutting site on the patient during bone cutting.

[0013] Furthermore, the vertical tooth lines are formed on the crescent grooves.

[0014] By adopting the above scheme, the vertical tooth pattern can achieve stable fixation of the cutter head during bone cutting, thereby facilitating efficient bone cutting.

[0015] Furthermore, the vertical tooth lines are secondarily formed on the cutter head.

[0016] By adopting the above solution, the second vertical tooth pattern facilitates grinding of the bone tissue around the bone cutting site of the patient during bone cutting.

[0017] The specific working principle is: when in use, first connect the knife rod to the external ultrasonic generator through the joint, and put the ultrasonic bone knife into the percutaneous foraminal endoscope, then just extend the knife head into the corresponding bone cutting part of the patient, and make the external ultrasonic generator work, so that the ultrasonic bone knife can be put into use. During use, the doctor can observe the bone cutting situation on the patient through the crescent alveolar and the percutaneous foraminal endoscope, which is convenient for the doctor to accurately control the cutting process and improve the bone cutting efficiency. The tooth vertical line 1 and the tooth vertical line 2 can realize the stable placement of the knife head relative to the patient's bone during bone cutting, and can also grind the bone tissue around the bone cutting part of the patient during the bone cutting process to avoid damage to the bone tissue at the bone cutting part.

[0018] The beneficial effects of the present invention are:

[0019] By providing a blade head, a crescent groove with cutting teeth and grinding teeth, a first vertical tooth line and a second vertical tooth line, not only can the doctor observe the bone cutting condition of the patient through the interlaminar foraminal endoscope during bone cutting, facilitating the doctor to accurately control the cutting process and improve the bone cutting efficiency, but also the blade head can be stably placed relative to the patient's bone during bone cutting, and at the same time, the bone tissue around the bone cutting site of the patient can be polished during the bone cutting process to avoid damage to the bone tissue at the bone cutting site and improve the safety of the bone cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the ultrasonic osteotome used under the transforaminal endoscope of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the blade head of the ultrasonic osteotome used under the transforaminal endoscope of the present invention.

[0022] The following are the descriptions of the reference numerals:

[0023] 1. Joint; 2. Fastening screw pattern; 3. Tool bar; 4. Tool head; 5. Vertical tooth pattern one; 6. Vertical tooth pattern two; 7. Crescent groove. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings:

[0025] like Figure 1-Figure 2 As shown, the ultrasonic bone knife used under the percutaneous endoscopic lumbar disc includes a knife rod 3, a knife head 4 and a crescent groove 7 with cutting teeth and grinding teeth. The knife head 4 is arranged at one end of the knife rod 3, and the crescent groove 7 is arranged in the knife head 4. The inner end of the crescent groove 7 is provided with a tooth vertical line 5, and the outer side wall of the knife head 4 is provided with a tooth vertical line 6. The front end has a cutting line, and the other end of the knife rod 3 is provided with a joint 1, and the joint 1 is installed with a fastening screw line 2.

[0026] In this embodiment, the cutter head 4 is formed on the cutter rod 3 , and both the cutter rod 3 and the cutter head 4 are made of titanium, which can ensure the normal use of the cutter rod 3 and the cutter head 4 .

[0027] In this embodiment, the joint 1 is formed on the knife bar 3, and the fastening screw 2 is formed on the joint 1. The joint 1 can realize the convenient connection between the knife bar 3 and the external ultrasonic generator.

[0028] In this embodiment, the crescent groove 7 is formed on the cutter head 4, and a hollow structure is adopted at the crescent groove 7 on the cutter head 4. The crescent groove 7 can expose the bone cutting part of the patient during bone cutting.

[0029] In this embodiment, the vertical tooth pattern 5 is formed on the crescent groove 7. The vertical tooth pattern 5 can achieve stable fixation of the cutter head 4 during bone cutting, thereby facilitating efficient bone cutting.

[0030] In this embodiment, the second vertical tooth pattern 6 is formed on the cutter head 4, and the second vertical tooth pattern 6 is convenient for grinding the bone tissue around the bone cutting part of the patient during bone cutting.

[0031] The specific working principle is: when in use, first connect the knife rod 3 to the external ultrasonic generator through the joint 1, and put the ultrasonic bone knife into the percutaneous foraminal endoscope, then just extend the knife head 4 into the corresponding bone cutting part of the patient, and make the external ultrasonic generator work, so that the ultrasonic bone knife can be put into use. During use, the doctor can observe the bone cutting situation on the patient through the crescent alveolar groove 7 and the percutaneous foraminal endoscope, which is convenient for the doctor to accurately control the cutting process and improve the bone cutting efficiency. The tooth vertical line 1 5 and the tooth vertical line 2 6 can realize the stable placement of the knife head 4 relative to the patient's bone during bone cutting, and can also grind the bone tissue around the bone cutting part of the patient during the bone cutting process to avoid damage to the bone tissue at the bone cutting part.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. The ultrasonic osteotome used under transforaminal endoscopy is characterized by: It comprises a knife bar (3), a knife head (4) and a crescent groove (7) with cutting teeth and grinding teeth, wherein the knife head (4) is arranged at one end of the knife bar (3), the crescent groove (7) is arranged inside the knife head (4), a first vertical tooth pattern (5) is arranged at the inner end of the crescent groove (7), a second vertical tooth pattern (6) is arranged on the outer side wall of the knife head (4), and a cutting pattern is arranged at the front end, and a joint (1) is arranged at the other end of the knife bar (3), and a fastening screw pattern (2) is installed on the joint (1); The ultrasonic bone knife used under the transforaminal endoscope, the knife head (4) is formed on the knife rod (3), and the knife rod (3) and the knife head (4) are both made of medical titanium; The ultrasonic bone knife used under the transforaminal endoscope, the joint (1) is formed on the knife rod (3), and the fastening screw thread (2) is formed on the joint (1); In the ultrasonic bone knife used under the transforaminal endoscope, the crescent (7) is formed on the knife head (4), and the knife head (4) is partially hollow at the crescent (7); The ultrasonic bone knife used under the transforaminal endoscope, the vertical tooth pattern (5) is formed on the crescent alveolar groove (7); The ultrasonic bone knife used under the transforaminal endoscope, the second vertical tooth pattern (6) is formed on the knife head (4).

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