Intracranial channel retractor

Abstract

The utility model discloses an intracranial channel retractor which comprises a main rod and is characterized in that a sliding piece is arranged on the outer side of the main rod in a sliding mode, a sliding groove penetrating through the sliding piece is formed in the middle of the sliding piece, and a screw hole communicated with the sliding groove is formed in the side wall of the sliding piece. The main rod is divided into an upper part and a lower part, the upper part is a sliding rod, the lower part is a connecting block, three connecting rods are rotationally installed on the side face of the connecting block, one ends of the connecting rods are rotationally connected with the connecting block, and the other ends of the connecting rods are rotationally connected with the rotating rod. A channel is kept, meanwhile, three instruments (an aspirator, a bipolar electrocoagulator and a brain endoscope) enter from three quadrants and do not interfere with one another, the sight line is not limited in the channel, the instrument can be freely expanded towards the side direction, and the instrument can also be used in cooperation with a neurosurgery retractor (a snake-shaped mechanical arm).

Description

Technical Field

[0001] The utility model relates to the technical field of intracranial surgical retractors, in particular to an intracranial channel retractor. Background Art

[0002] An intracranial surgical retractor can provide a working channel during brain surgery. The existing retractor is mainly composed of a transparent pipe. When multiple instruments (such as an aspirator, a bipolar electrocoagulator and a brain endoscope) are used in the channel during surgery, the narrow channel may cause inconvenience in operation. Therefore, the utility model proposes an intracranial channel retractor. Summary of the invention

[0003] The purpose of the utility model is to provide an intracranial channel retractor to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an intracranial channel retractor, including a main rod, characterized in that: a sliding piece is slidably arranged on the outer side of the main rod, a sliding groove penetrating the upper and lower parts of the sliding piece is opened in the middle of the sliding piece, a screw hole connected to the sliding groove is opened on the side wall of the sliding piece, a fixing bolt is screwed on the screw hole, the main rod is divided into two parts, the upper part is a sliding rod, and the lower part is a connecting block, three connecting rods are rotatably installed on the side of the connecting block, one end of the connecting rod is rotatably connected to the connecting block, and the other end is rotatably connected to the rotating rod, one end of the rotating rod is rotatably connected to the sliding piece, and the other end is fixedly connected to a thin plate.

[0005] Preferably, a protrusion is provided on the side wall of the slide groove of the sliding member, and a groove is provided on the slide rod of the main rod, and the protrusion can be inserted into the groove and slidably connected with the groove.

[0006] Compared with the prior art, the beneficial effects of the utility model are: through the tripod design, it can retract the brain tissue and maintain the channel, and at the same time allow three instruments (aspirator, bipolar electrocoagulator and endoscope) to enter from three quadrants without interfering with each other. The line of sight is not limited to the channel, but can be freely expanded to the side, and can also be used in conjunction with a neurosurgery retractor (snake-shaped robotic arm). BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a schematic diagram of the overall structural connection of the utility model;

[0008] Figure 2 This is a schematic diagram of the structure of the sliding member of the utility model;

[0009] Figure 3 This is a schematic diagram of the main rod structure of the utility model.

[0010] In the figure: 1 main rod, 2 sliding member, 3 rotating rod, 4 connecting rod, 5 fixing bolt. DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0012] Referring to Figures (1-3), an intracranial channel retractor includes a main rod 1, characterized in that: a sliding member 2 is slidably arranged on the outer side of the main rod 1, a sliding groove penetrating the upper and lower parts of the sliding member 2 is opened in the middle of the sliding member 2, a screw hole connected to the sliding groove is opened on the side wall of the sliding member 2, a fixing bolt 5 is screwed on the screw hole, the main rod 1 is divided into two parts, the upper part is a sliding rod, and the lower part is a connecting block, three connecting rods 4 are rotatably installed on the side of the connecting block, one end of the connecting rod 4 is rotatably connected to the connecting block, and the other end is rotatably connected to the rotating rod 3, one end of the rotating rod 3 is rotatably connected to the sliding member 2, and the other end is fixedly connected to a thin plate.

[0013] Preferably, a protrusion is provided on the side wall of the slide groove of the sliding member 2, and a groove is provided on the slide rod of the main rod 1, and the protrusion can be inserted into the groove and slidably connected with the groove.

[0014] When the device is in use, the slide bar on the main rod 1 is pushed to move relative to the slide member 2. Thus, the connecting rod 4 pushes the end of the rotating rod 3 connected with the thin plate outward to pull the brain tissue apart, and then tightens the fixing bolt 5 to make the fixing bolt 5 squeeze the slide bar in the slide groove of the sliding frame 2 to limit the sliding of the slide bar, thereby maintaining the channel and facilitating the entry of instruments for surgery; the presence of the protrusion allows the slide bar of the main rod to enter the slide groove in only one direction, facilitating the connection between the rotating rod and the connecting rod.

[0015] The orientations or positional relationships shown in the drawings are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0016] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0017] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intracranial channel retractor, comprising a main rod (1), characterized in that: A sliding member (2) is slidably arranged on the outer side of the main rod (1), a sliding groove penetrating the upper and lower parts of the sliding member (2) is opened in the middle of the sliding member (2), a screw hole connected to the sliding groove is opened on the side wall of the sliding member (2), and a fixing bolt (5) is screwed on the screw hole. The main rod (1) is divided into two parts, the upper part is a sliding rod and the lower part is a connecting block. Three connecting rods (4) are rotatably installed on the side of the connecting block. One end of the connecting rod (4) is rotatably connected to the connecting block, and the other end is rotatably connected to the rotating rod (3). One end of the rotating rod (3) is rotatably connected to the sliding member (2), and the other end is fixedly connected to a thin plate.

2. The intracranial channel retractor according to claim 1, characterized in that: The sliding groove side wall of the sliding member (2) is provided with a protrusion, and the sliding rod of the main rod (1) is provided with a groove, and the protrusion can be inserted into the groove and slidably connected with the groove.

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