CN218979081U

CN218979081U - Eccentric bone chisel outside mirror

Info

Publication number: CN218979081U
Application number: CN202222258667.4U
Authority: CN
Inventors: 闫明; 周传利; 游勤光
Original assignee: Maoyu Qingdao Medical Technology Co ltd
Current assignee: Maoyu Qingdao Medical Technology Co ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2023-05-09
Anticipated expiration: 2032-08-26
Also published as: DE202023102726U1

Abstract

The extra-specular eccentric osteotome is a special bone tissue treatment instrument for combined endoscope operation, is used for accurately implanting into an intervertebral disc and treating focus tissues in various indications under a direct vision condition, especially bone tissues adjacent to nerve dura mater such as a chiseling spinous process, and can effectively improve operation efficiency, shorten operation time, reduce stimulation on nerve tissues in a vertebral canal of a patient and reduce pain of the patient. The extrascopic eccentric osteotome comprises a handle and an outer tube which are connected with each other, a working end is arranged at the front end of the outer tube, and an implantation hole for allowing the spinal endoscope to pass through is arranged at the axial center of the handle; the outer tube is provided with a hollow cavity for accommodating the through length of the endoscope body of the spinal endoscope, and the implantation hole of the handle is communicated with the hollow cavity of the outer tube; the working end is provided with at least one observation window, and the opening direction of the observation window comprises forward and upward; the top ends of the two side edges of the working end are formed into thin and sharp scraping edges, and the scraping edges are bent inwards.

Description

Eccentric bone chisel outside mirror

Technical Field

The utility model relates to a novel extrascopic eccentric osteotome for treating bone tissue in a spinal endoscope fusion operation, belonging to the field of medical appliances.

Background

At present, along with the rapid development of the endoscope technology, the development of the treatment of the spinal surgery indication by means of the endoscope is further popularized and applied. In the background of the aggravated aging of population, the incidence rate of spinal diseases such as hyperosteogeny, yellow ligament hypertrophy and the like is greatly increased, in particular to intervertebral disc protrusion and hyperosteogeny.

The prior art can only implement open surgery, the damage to muscle, fascia and bone tissues of a patient is serious, and the postoperative rehabilitation time of the patient is long, so that medical resources are excessively occupied. In the existing clinic, an endoscope minimally invasive surgery mode is introduced, in the minimally invasive decompression or fusion surgery process, the treatment of bone tissues is a key step which is necessary and important, at present, doctors do not have special tools for chiseling bone tissues, other instruments are low in efficiency, and have no effective means for rapidly treating the spinous processes with serious calcification, and a certain risk of damaging the nerve dura mater exists, so that the surgery process is complicated, a great amount of time is wasted, and the pain of patients is obvious.

This patent application is specifically filed by reference thereto.

Disclosure of Invention

The extrascopic eccentric osteotome aims to solve the problems in the prior art and provides a special bone tissue treatment instrument for implementing fusion operation by combining an endoscope, so that focal tissues in various indications, especially bone tissues adjacent to nerve dura such as spinous processes, can be accurately implanted into an intervertebral disc under a direct vision condition, the operation efficiency can be effectively improved, the operation time can be shortened, the stimulation to nerve tissues in a vertebral canal of a patient can be reduced, and the pain of the patient can be reduced.

For realizing the above-mentioned design purpose, the eccentric osteotome of mirror outer include interconnect's handle and outer tube, be provided with the work end at outer tube front end, its characterized in that: an implantation hole for allowing the spinal endoscope to pass through is arranged at the axial center of the handle; the outer tube is provided with a hollow cavity for accommodating the through length of the endoscope body of the spinal endoscope, and the implantation hole of the handle is communicated with the hollow cavity of the outer tube; the working end is provided with at least one observation window, and the opening direction of the observation window comprises forward and upward; the top ends of the two side edges of the working end are formed into thin and sharp scraping edges, and the scraping edges are bent inwards.

Further, the front end of the working end is provided with saw teeth and/or trimming edges, and the trimming edges protrude forwards in an inclined mode.

Further, the hollow cavity of the outer tube is a cylindrical cavity tube with an outer closed part or a half cavity tube which is cut along the longitudinal direction.

Further, the outer tube and the working end are integrally of an eccentric structure, namely, the vertical section outlines of the outer tube and the working end are eccentric circles.

To sum up, the extra-specular eccentric osteotome provided by the application has the following advantages:

1. the minimally invasive, visual and safe surgical requirements of clinical requirements are met, the minimally invasive surgical method has higher applicability and extensive compatibility of the extrascopic fusion surgery, the surgical efficiency is obviously improved and the time is shortened on the whole, and the stimulation to the nerve and dura mater in the vertebral canal of a patient is reduced.

2. By using the surgical knife with the spine endoscope, a doctor can accurately guide the working end into the surgical position, and the working end is driven to efficiently and rapidly chisel the pathological bone tissue by rotating the handle, so that the surgical efficiency and accuracy are remarkably improved, and the pain of a patient is reduced to the greatest extent.

3. The osteotome adopts an eccentric structural design, effectively increases the cutting force, the mechanical strength and the durability of the instrument, and simultaneously increases the field of view outside the scope, thereby ensuring the safety of the operation.

4. The novel surgical bone cutting device has an eccentric working end structure, can increase the cutting range after rotation, is particularly suitable for treating bone tissues with serious calcification, effectively reduces the size of a wound of a patient, and is beneficial to postoperative recovery of the patient.

5. The surgical operation method and the surgical operation device are flexibly combined with the endoscope, can simplify the operation flow of doctors, are more suitable for clinical use and popularization of the existing spinal fusion surgery, and can be also expanded to other endoscopic surgeries for use.

Drawings

The design of the present application will now be further described in connection with the following figures.

FIG. 1 is a schematic view of an off-lens eccentric osteotome according to the present application;

FIG. 2 is an exploded view of the structure shown in FIG. 1;

FIG. 3 is a schematic diagram showing the axial alignment of the outer tube with a conventional circle as described herein;

FIGS. 4 and 5 are schematic views of a procedure for performing a cutting operation using a combination endoscope of the present application;

Detailed Description

Additional advantages and features of the present application can be derived from the following description, in which embodiments are set forth in detail with reference to the figures.

Embodiment 1 as shown in fig. 1 to 5, the present application proposes an off-speculum eccentric osteotome applied to spinal surgery treatment, which comprises an outer tube 1 and a handle 2 assembled by welding with each other, and a working end 3 is provided at the front end of the outer tube 1.

The axial center of the handle 2 is provided with an implantation hole 21 allowing the spinal endoscope 10 to pass through;

the outer tube 1 is provided with a hollow cavity 11 which is used for accommodating the endoscope body of the spinal endoscope and has a through length, and the implantation hole 21 of the handle 2 is communicated with the hollow cavity 11 of the outer tube 1;

the hollow cavity 11 of the outer tube 1 is a cylindrical cavity tube with a closed outside or a half cavity tube which is cut along the longitudinal direction;

the working end 3 is used for performing chiseling and scraping treatment on bone tissues such as spinous processes and the like rapidly and efficiently in cooperation with using the spinal endoscope 10, the working end 3 is provided with at least one observation window 30, and the opening direction of the observation window 30 comprises forward and upward directions. By turning the handle 2, the working end 3 can be integrally rotated by the outer tube 1, thereby changing the orientation and angle of the observation window 30.

Further, the outer tube 1 and the working end 3 are integrally of an eccentric structure, namely, the vertical section profiles of the outer tube and the working end are both crescent asymmetric eccentric circles.

Wherein, the top ends of the two side edges of the working end 3 are formed into thin and sharp scraping edges 33, and the scraping edges 33 are bent inwards; the front end of the working end 3 is provided with saw teeth 31 and trimming edges 32 at the same time, and the trimming edges 32 protrude forward and obliquely so as to conveniently enter a narrow centrum gap.

When the working end 3 moves forwards and backwards, two sides of the working end are in surface contact with tissues in the intervertebral space, so that the more sensitive nerve dura mater is protected during insertion. Only when rotated, the scraping edge 33 can contact bone tissue such as spinous process, and has the functions of chiseling and scraping.

The working end 3 and the outer tube 1 are both of eccentric structures, on one hand, the cutting angle and the area of the scraping edge 33 during rotation can be increased, and the processing range of the scraping edge 33 after abduction is larger, and the operation efficiency is higher.

On the other hand, the working end 3 is ensured to have high cutting force, the mechanical strength and durability of the whole outer tube 1 are high, and meanwhile, the observation field of view under the direct vision condition can be increased, and the operation safety is ensured.

As shown in fig. 4 and 5, the spinal endoscope 10 is combined to perform fusion surgery, the spinal endoscope 10 is placed into the hollow cavity 11 of the outer tube 1 through the implantation hole 21, the lens is positioned at the observation window 30 of the working end 3, the handle 2 is rotated to adjust the observation window 30 to face the protruding and proliferated spinous process 20, the visual field is relatively wide when the working end 3 just contacts the spinous process 20, and the two sides of the working end 3 can not press the nerve dura mater 40.

The outer tube 1 is further advanced by means of the serrations 31, cut edges 32 and scraping edges 33 of the working end 3 for performing the cutting and scraping process for the spinous processes 20. At this stage, a certain visual field is still ensured, the nerve dura 40 is not pressed, and the operation is safer.

In summary, the embodiments presented in connection with the figures are only preferred. It will be apparent to those skilled in the art from this disclosure that other alternative constructions, which are in accordance with the design concept of the present utility model, can be directly derived and are intended to fall within the scope of the utility model as described herein.

Claims

1. The utility model provides an outer eccentric osteotome of mirror, includes interconnect's handle and outer tube, is provided with the work end at outer tube front end, its characterized in that: an implantation hole for allowing the spinal endoscope to pass through is arranged at the axial center of the handle;

the outer tube is provided with a hollow cavity for accommodating the through length of the endoscope body of the spinal endoscope, and the implantation hole of the handle is communicated with the hollow cavity of the outer tube;

the working end is provided with at least one observation window, and the opening direction of the observation window comprises forward and upward; the top ends of the two side edges of the working end are formed into thin and sharp scraping edges, and the scraping edges are bent inwards.

2. The off-speculum eccentric osteotome of claim 1, wherein: the front end of the working end is provided with saw teeth and/or trimming edges, and the trimming edges protrude forwards in an inclined mode.

3. The off-the-lens eccentric osteotome of claim 1 or 2, wherein: the hollow cavity of the outer tube is a cylindrical cavity tube with the outer part closed or a half cavity tube which is cut along the longitudinal direction.

4. An off-the-lens eccentric osteotome as defined in claim 3, wherein: the outer tube and the working end are integrally of an eccentric structure, namely, the vertical section outlines of the outer tube and the working end are eccentric circles.