CN219109695U - Fusion intervertebral space struts ware under mirror - Google Patents

Abstract

The under-scope fusion intervertebral space spreader disclosed by the utility model can accurately, rapidly and stably spread the space, and is beneficial to realizing various treatment means in the whole course of under-scope fusion operation, so that the operation risk can be effectively reduced, the operation efficiency can be improved, the time operation can be shortened, and the pain of patients can be reduced. The under-scope fusion intervertebral space spreader comprises a rod part and a handle which are connected with each other, the front end of the rod part is a wedge-shaped pointed head, and the handle has a section and a volume which are obviously larger than the external dimension of the rod part; the rod part and the handle are rotationally fixed and detached through the internal and external threads.

Description

Fusion intervertebral space struts ware under mirror

Technical Field

The utility model relates to a novel intervertebral disc distraction special tool for spinal endoscope fusion surgery, and belongs 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 the population, the incidence rate of spinal diseases such as hyperosteogeny, yellow ligament hypertrophy, herniated disc, high loss of intervertebral disc, lumbar spondylolisthesis and the like is greatly increased. Especially for the unstable symptoms of the spine such as lumbar spondylosis, the prior art can only implement open operation, the damage to muscles, fascia and bone tissues of patients is serious, and the postoperative rehabilitation time of the patients is long and the patients occupy too much medical resources. The existing clinic introduces a minimally invasive surgery mode, such as adopting a posterior approach (PLIF) approach to carry out treatment. Furthermore, the method is helpful for doctors to develop fusion surgery (Endopif) by using equipment such as an endoscope based on a common access method and anatomic skills so as to achieve a minimally invasive fusion surgery method under the lens.

Especially for patients with serious collapse of the intervertebral space, most doctors adopt the method of firstly percutaneous nailing and fixing the nail rod, then using the nail rod to prop up the intervertebral space, implanting the fusion device after the intervertebral space is treated, and finally re-fixing the nail rod, thereby the operation process is complicated, a great deal of time is wasted, and the pain of the patients is obvious.

This patent application is specifically filed by reference thereto.

Disclosure of Invention

The utility model provides a fusion intervertebral space struts ware under mirror, its design aim at solves the not enough that above-mentioned prior art exists and proposes a novel intervertebral disc struts specialized tool to the clearance is struts accurately, fast and steadily, is favorable to realizing fusion operation whole-course multiple processing means under mirror, thereby can reduce operation risk effectively, improve operation efficiency and shorten time operation, reduces patient's pain.

In order to achieve the above design purpose, the under-scope fusion intervertebral space spreader comprises a rod part and a handle which are connected with each other, wherein the front end of the rod part is a wedge-shaped pointed head, and the handle has a section and a volume which are obviously larger than the external dimension of the rod part; the rod part and the handle are rotationally fixed and detached through the internal and external threads.

Further, the outer periphery of the rod part is marked with scales, the measuring units of the scales can be millimeter, and the rod part is movably sleeved with a limiter.

Further, the limiter comprises a buckle which is hooped at the periphery of the rod part, an adjusting handle is inserted in the buckle in a penetrating way, and the adjusting handle is screwed in and out of the buckle through threads.

In summary, the under-the-mirror fusion intervertebral space spreader 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 instrument has higher applicability and extensive compatibility of the endoscopic 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 and the pain of the patient are reduced.

2. By using the surgical instrument matched with the spinal endoscope, various working sleeves, expansion tubes and other instruments, various therapeutic measures of minimally invasive fusion surgery under the scope can be realized, and the overall therapeutic wound and the surgical risk are very small.

3. By using the device, the serious intervertebral space can be easily expanded, the operation efficiency is correspondingly improved, the device has the characteristic of being convenient for random replacement of various cannulas in the under-lens fusion operation, and the practicability and compatibility of the device are higher.

4. The whole spreader has no sharp external structure, can ensure that the instrument can not cause injury to the nerve dura mater when entering and exiting the vertebral canal, and correspondingly ensures the operation safety.

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 the construction of an under-the-mirror fusion intervertebral space distractor;

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

fig. 3-9 are schematic views of a procedure for performing an endoscopic fusion procedure using an intervertebral space distractor.

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.

Example 1 as shown in fig. 1 to 9, a novel under-the-lens fusion intervertebral space spreader for spinal surgery treatment comprises a rod part 1 and a handle 2 which are connected with each other;

wherein the external dimension of the rod part 1 cannot be too large to minimize the operation wound, and the front end of the rod part 1 is provided with a wedge-shaped tip 11 for being wedged into a narrow intervertebral space safely and rapidly, thereby stably expanding the intervertebral disc condyle space.

The handle 2 has a cross section and volume that is significantly larger than the outside dimension of the shaft, thereby wedging the wedge-shaped tip 11 into the intervertebral space from the outside inwards using blunt tapping.

The rod part 1 and the handle 2 can be conveniently disassembled and assembled for conveniently implanting various working sleeves for replacement, and the common connecting structure is that the rod part 1 and the handle 2 are rotationally fixed and disassembled through the internal thread 3.

In order to conveniently and accurately preset the depth of the rod part 1 inserted into a human body, scales are marked on the periphery of the rod part 1, the measuring units of the scales can be millimeter, and a limiter 4 is movably sleeved on the rod part 1.

In order to improve the accuracy and flexibility of the deep operation of the adjusting rod 1 according to the scale, the limiter 4 comprises a buckle 42 which is hooped at the periphery of the rod 1, an adjusting handle 41 is inserted through the buckle 42, and the adjusting handle 41 is screwed into and out of the buckle 42 through threads; when screwed into the internal limit position of the catch 42, the front end of the adjustment handle 41 abuts against the outer periphery of the lever portion 1 to position the catch 42 by friction therebetween.

As shown in fig. 3 to 9, the procedure for performing the fusion operation under the lens using the intervertebral space distractor described in the present application is as follows:

firstly, confirming a part to be operated by an image instrument, measuring the insertion depth value of a spreader by using CT before operation, and correspondingly setting the scale position of a limiter 4 on a rod part 1;

then, the intervertebral space spreader is knocked in by a hammer, and the stop is stopped when the limiter 4 approaches the skin of a patient, and the wedge-shaped tip 11 gradually penetrates into the intervertebral disc 10, so that the purpose of spreading the narrow intervertebral space is achieved;

subsequently, the handle 2 is unscrewed, the limiter 4 is removed, and only the stem 1 is left in the patient; implanting a cannula 20 along the outside of the shaft 1 into the intervertebral space;

secondly, screwing the handle 2 into the connecting combination rod 1 again to withdraw the rod 1 out of the human body through the handle 2, but leaving the cannula 20 in the intervertebral space;

finally, a spinal endoscope 30 is implanted into the cannula 20, and various tools are used in combination under direct vision to perform the intervertebral space surgical procedure.

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 (3)

1. An under-lens fusion intervertebral space spreader, which is characterized in that: the device comprises a rod part and a handle which are connected with each other, wherein the front end of the rod part is a wedge-shaped tip, and the handle has a section and a volume which are obviously larger than the external dimension of the rod part;

the rod part and the handle are rotationally fixed and detached through the internal and external threads.

2. The under-the-lens fusion intervertebral space distractor of claim 1, wherein: the outer circumference of the rod part is marked with scales, the measuring units of the scales can be millimeter, and the rod part is movably sleeved with a limiter.

3. The under-the-lens fusion intervertebral space distractor of claim 2, wherein: the limiter comprises a buckle which is hooped at the periphery of the rod part, an adjusting handle is inserted in the buckle in a penetrating way, and the adjusting handle is screwed in and out of the buckle through threads.

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