A positioning tool for spinal lesion clearing surgery

Abstract

The utility model belongs to the field of minimally invasive surgical tools, relates to pedicle screw / cone plate screw, especially relates to a positioning tool for spinal focus cleaning operation, including two pedicle screws, the connecting rod is connected between two pedicle screws, the middle part of connecting rod is protruding in the direction of far away from the spine, the utility model discloses the middle part of connecting rod is set as protruding, makes the distance of protruding place and intervertebral foramen increase, and then makes the end of curved cutter convenient from the protrusion and enters intervertebral foramen, and the doctor uses the cutter to carry out slight activity to scrape conveniently.

Description

Technical Field

[0001] This utility model belongs to the field of minimally invasive surgical tools, and relates to pedicle screws / laminar screws, and more particularly to a positioning tool for spinal lesion cleaning surgery. Background Technology

[0002] Currently, spinal fixation rod systems are used in surgeries such as lumbar fracture repair. These systems require only a 1-2cm incision during implantation, enabling minimally invasive surgery and promoting wound healing. In discectomy, spinal fixation rod systems can also be used to locate the vertebral body, making it easier for surgeons to pinpoint the location of the ligamentum flavum. Spinal fixation rod systems mainly consist of pedicle screws / laminar screws and connecting rods / connecting plates. However, in existing systems, the connecting rods can obstruct the intervertebral foramen, making it difficult for surgical instruments to enter and scrape the ligamentum flavum. Therefore, improvements to existing spinal fixation rod systems are needed. Utility Model Content

[0003] This invention addresses the problem that existing spinal fixation rod systems can obstruct the entry of cutting tools into the intervertebral foramen by providing a positioning tool for spinal lesion cleaning surgery.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a positioning tool for spinal lesion cleaning surgery, comprising two pedicle screws, a connecting rod connecting the two pedicle screws, and the middle part of the connecting rod protruding away from the spine.

[0005] Preferably, the protrusion height of the connecting rod is 1 to 3 cm.

[0006] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0007] This invention increases the distance between the protrusion and the intervertebral foramen by setting the middle part of the connecting rod as a protrusion, thereby making it easier for the curved blade at the end to pass under the protrusion and enter the intervertebral foramen, and making it convenient for doctors to use the blade to perform slight movements for scraping.

[0008] This utility model has a simple structure, is easy to manufacture, and is easy to modify and implement. Attached Figure Description

[0009] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1This is a schematic diagram of a positioning tool used in spinal lesion debridement surgery.

[0011] In the above figures, 1 is a pedicle screw; 2 is a connecting rod; and 3 is a protrusion. Detailed Implementation

[0012] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0013] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0014] like Figure 1 As shown, in order to avoid the connecting rod blocking the intervertebral foramen, this utility model provides a positioning tool for spinal lesion cleaning surgery, including two pedicle screws 1, which are respectively used for implantation into adjacent pedicles. A connecting rod 2 connects the two pedicle screws. The connection method between the pedicle screws 1 and the connecting rod 2 is the prior art and will not be described in detail here. The middle part of the connecting rod 2 protrudes away from the spine.

[0015] Furthermore, the middle part of the connecting rod 2 protrudes 1 to 3 cm away from the spine.

[0016] Specifically, in discectomy, a traditional curette / electrosurgical knife needs to be inserted through the intervertebral foramen into the space between the vertebral body and the vertebral arch to remove the ligamentum flavum near the vertebral arch. Therefore, a curved blade is needed to scrape away the ligamentum flavum hidden in the vertebral arch. This invention is based on using pedicle screws 1 and connecting rods 2 to locate adjacent pedicles. However, by adding a protrusion 3 in the middle of the connecting rod 2, the distance between the protrusion 3 and the intervertebral foramen is increased. This allows the curved blade to easily pass under the protrusion and enter the intervertebral foramen, and facilitates the surgeon's slight movements with the blade for scraping. This invention is not only applicable to discectomy but also to other spinal lesion removal procedures with similar steps.

[0017] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A positioning tool for spinal lesion debridement surgery, characterized in that, It includes two pedicle screws, and a connecting rod is connected between the two pedicle screws. The middle part of the connecting rod protrudes away from the spine.

2. The positioning tool for spinal lesion debridement surgery according to claim 1, characterized in that, The protrusion height of the connecting rod is 1 to 3 cm.

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