A positioner for endoscopic orbital decompression surgery

Abstract

The application relates to a positioner for endoscopic orbital wall decompression surgery, which comprises a positioning seat capable of being fixed at the base point of the lower orbital bone and a triangular positioning guide plate capable of being inserted into the orbit, which is formed by connecting the bottom, the first side and the second side in sequence, the bottom and the first side form an angle A greater than 20 DEG and smaller than 60 DEG, the first side and the second side form an angle B greater than or equal to 90 DEG and smaller than 120 DEG, the positioning seat is arranged at the intersection of the bottom and the second side of the positioning guide plate, and a clamping groove capable of being clamped at the base point of the lower orbital bone is concavely arranged on the positioning seat. By adopting the technical scheme, the problem that the surgical instrument deeply enters the orbit to process the bone wall in the orbit or the surgical instrument moves in the orbit, the brain nerve is touched, and the possibility of secondary injury of the operator is avoided in the existing ophthalmic surgery.

Description

Technical Field

[0001] The present invention relates to the field of medical instruments, and in particular to a positioner used for endoscopic orbital wall decompression surgery. Background Art

[0002] Endoscopic transconjunctival orbital decompression surgery is a new minimally invasive orbital decompression procedure. This procedure fundamentally avoids the two major complications of temporal fossa depression and nystagmus, offering advantages such as minimal invasiveness, clear results, and few complications.

[0003] However, due to the limited space in endoscopic surgery, the depth and height of the medical instrument inserted into the eye socket are entirely controlled by the doctor's experience. However, the outer wall of the orbit is above and behind the brain. Once the depth and height of the medical instrument inserted into the eye socket are improperly controlled, serious consequences will occur. Therefore, there is an urgent need for a locator that can reduce the risks of minimally invasive orbital wall decompression surgery. Summary of the Invention

[0004] Purpose of the present invention: In order to overcome the defects of the prior art, the present invention provides a positioner for endoscopic orbital wall decompression surgery, which can reduce the risks of minimally invasive orbital wall decompression surgery.

[0005] The technical solution of the present invention is as follows: A positioner for endoscopic orbital wall decompression surgery comprises a positioning seat that can be fixed at a base point on the lower orbital bone and a triangular positioning guide plate that is inserted into the eye socket and has a bottom, a first side, and a second side connected end to end. The bottom and the first side intersect to form an ∠A that is greater than 20° and less than 60°, and the first side and the second side intersect to form a ∠B that is greater than or equal to 90° and less than 120°. The positioning seat is arranged at the intersection of the bottom and the second side of the triangular positioning guide plate, and the positioning seat is recessed with a card slot that can be clamped at the base point on the lower orbital bone.

[0006] By adopting the above technical solution, a base point is provided on the patient's lower orbital bone, and the card slot is clamped at the base point on the lower orbital bone so that the positioning seat can be fixed at the base point on the lower orbital bone. The triangular positioning guide plate extends into the eye socket, and the intersection of the bottom and the first side portion is located deep in the eye socket. The intersection of the bottom and the first side portion can be used as a reference point for the medical device to extend into the deepest part of the eye socket. The intersection of the first side portion and the second side portion is used as a reference point for the highest point at which the medical device can move in the eye socket. The setting of 20°<∠A<60° allows the first side portion to be used as a height reference for the medical device to move in the eye socket. The setting of 90°≤∠B<120° allows the intersection of the first side portion and the second side portion to always be located at or in the eye socket. The intersection of the first side portion and the second side portion serves as the highest point for reference when the medical device moves in the eye socket.

[0007] The present invention is further provided with: the triangular positioning guide plate includes a first side surface and a second side surface, the first side surface is provided with an arc surface recessed toward the second side surface, and the arc surface extends along the length direction of the bottom of the triangular positioning guide plate.

[0008] With the above further arrangement, the medical device moves in and out along the length direction of the arc surface, which can effectively prevent the medical device from damaging other tissues in the orbit and reduce postoperative complications.

[0009] The present invention is further configured as follows: the first side portion includes an arc segment and a straight segment, the arc segment is connected to the bottom, an arc chamfer is set at the connection between one end of the straight segment and the second side portion, the other end of the straight segment is connected to the arc segment, and an arc chamfer is set at the connection between the end of the arc segment away from the straight segment and the bottom.

[0010] By further adopting the above-mentioned setting, an arc chamfer is set at the connection between one end of the straight section and the second side section. When the triangular positioning guide is extended into the deepest part of the patient's eye socket, it can avoid the intersection of the first side section and the bottom section from damaging the tissue deep in the eye socket. The arc section is set to avoid the first side section from damaging the tissue inside the eye socket.

[0011] A further configuration of the present invention is that the bottom portion and the second side portion are both vertically arranged on the positioning seat.

[0012] With the above further arrangement, when the positioning seat is fixed to the base point of the lower orbital bone, the triangular positioning guide plate is located in the orbit.

[0013] The present invention is further provided with: one side of the positioning seat is connected to the bottom, and the other side is bent downward to form the clamping groove.

[0014] By further adopting the above-mentioned setting, when the slot is stuck at the base point of the lower orbital bone, the side edge of the positioning seat away from the bottom can hook the lower orbital bone, so that the positioning seat can be better fixed on the lower orbital bone, so that the triangular positioning guide plate can serve as a reference for the safe range of movement of medical equipment in the orbit, and it can also avoid the possibility of the triangular positioning guide plate breaking due to the medical equipment touching the triangular positioning guide plate during surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A diagram showing a usage state of a specific embodiment of the present invention;

[0016] Figure 2 is a structural diagram of a specific embodiment of the present invention;

[0017] Figure 3 is a structural diagram of a specific embodiment of the present invention;

[0018] Figure 4 It is a structural diagram of a specific embodiment of the present invention. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in this embodiment with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] It should be noted that descriptions such as "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features.

[0021] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that those skilled in the art can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0022] like Figure 1-4 As shown, a positioner for endoscopic orbital wall decompression surgery of the present invention comprises a positioning seat 1 that can be fixed at a base point on the lower orbital bone and a triangular positioning guide plate 2 that is inserted into the eye socket and has a bottom 21, a first side 22, and a second side 23 that are connected end to end. The bottom 21 and the first side 22 intersect to form ∠A24 that is greater than 20° and less than 60°, and the first side 22 and the second side 23 intersect to form ∠B25 that is greater than or equal to 90° and less than 120°. The positioning seat 1 is arranged at the intersection of the bottom 21 and the second side 23 of the triangular positioning guide plate 2, and the positioning seat 1 is recessed with a card slot 11 that can be clamped at the base point on the lower orbital bone.

[0023] A base point is provided on the patient's lower orbital bone, and the card slot 11 is clamped at the base point on the lower orbital bone so that the positioning seat 1 is fixed at the base point on the lower orbital bone. The triangular positioning guide plate 2 extends into the eye socket, and the intersection of the bottom 21 and the first side portion 22 is located deep in the eye socket. The intersection of the bottom 21 and the first side portion 22 can be used as a reference point for the medical device to extend into the deepest part of the eye socket. The intersection of the first side portion 22 and the second side portion 23 is used as a reference point for the highest point at which the medical device can move in the eye socket. The setting of 20°<∠A24<60° allows the first side portion 22 to be used as a height reference for the medical device to move in the eye socket. The setting of 90°≤∠B25<120° allows the intersection of the first side portion 22 and the second side portion 23 to always be located at or in the eye socket. The intersection of the first side portion 22 and the second side portion 23 is used as the highest point for reference when the medical device moves in the eye socket.

[0024] Among them, the triangular positioning guide plate 2 includes a first side surface 26 and a second side surface 27. The first side surface 26 is provided with an arc surface 261 that is concave toward the second side surface 27. The arc surface 261 extends along the length direction of the bottom 21 of the triangular positioning guide plate 2. Medical devices enter and exit along the length direction of the arc surface 261, which can effectively prevent medical devices from damaging other tissues in the orbit and reduce postoperative complications.

[0025] Among them, the first side portion 22 includes an arc segment 221 and a straight segment 222, the arc segment 221 is connected to the bottom 21, and the connection 28 where one end of the straight segment 222 is connected to the second side portion 23 is set with an arc chamfer, the other end of the straight segment 222 is connected to the arc segment 221, and the connection 29 where the arc segment 221 is connected to the bottom 21 away from one end of the straight segment 222 is set with an arc chamfer, and the connection 28 where one end of the straight segment 222 is connected to the second side portion 23 is set with an arc chamfer. When the triangular positioning guide 2 is extended into the deepest part of the patient's eye socket, the intersection of the first side portion 22 and the bottom 21 can be avoided from damaging the tissue deep in the eye socket. The arc segment 221 is set to prevent the first side portion 22 from damaging the tissue in the eye socket.

[0026] The bottom portion 21 and the second side portion 23 are both vertically arranged on the positioning seat 1. When the positioning seat 1 is fixed at the base point of the lower orbital bone, the triangular positioning guide plate 2 is located in the orbit.

[0027] Among them, one side 12 on the positioning seat 1 is connected to the bottom 21, and the other side 13 is bent downward to form the slot 11. When the slot 11 is stuck at the base point of the lower orbital bone, the side of the positioning seat 1 away from the bottom 21 can hook the lower orbital bone, so that the positioning seat 1 can be better fixed on the lower orbital bone, so that the triangular positioning guide plate 2 can serve as a reference for the safe range of movement of medical equipment in the orbit, and can also avoid the possibility of the triangular positioning guide plate 2 breaking due to the medical equipment touching the triangular positioning guide plate during surgery.

[0028] Among them, refer to the attached Figure 1 As shown, the locator X is placed at the base point of the patient's lower orbital bone Y through the positioning seat 1, and the upper component of the positioning guide 2 serves as a reference limit value for the movement of the medical device in the orbit to prevent the medical device from damaging other tissues in the orbit and the back of the brain.

Claims

1. A positioner for endoscopic orbital wall decompression surgery, characterized in that: The invention comprises a positioning seat that can be fixed at a base point on the lower orbital bone and a triangular positioning guide plate that can be inserted into the eye socket and is formed by a bottom, a first side, and a second side that are connected end to end. The bottom and the first side intersect to form an ∠A that is greater than 20° and less than 60°, and the first side and the second side intersect to form a ∠B that is greater than or equal to 90° and less than 120°. The positioning seat is arranged at the intersection of the bottom and the second side of the triangular positioning guide plate. The positioning seat is recessed with a clamping groove that can be clamped at the base point on the lower orbital bone. The bottom and the second side are both arranged vertically on the positioning seat. One side of the positioning seat is connected to the bottom, and the other side is bent downward to form the clamping groove.

2. A positioner for endoscopic orbital wall decompression surgery according to claim 1, characterized in that: The triangular positioning guide plate includes a first side surface and a second side surface. The first side surface is provided with an arc surface that is recessed toward the second side surface. The arc surface is extended along the length direction of the bottom of the triangular positioning guide plate.

3. A positioner for endoscopic orbital wall decompression surgery according to claim 1 or 2, characterized in that: The first side portion includes an arc segment and a straight segment, the arc segment is connected to the bottom, an arc chamfer is set at the connection between one end of the straight segment and the second side portion, the other end of the straight segment is connected to the arc segment, and an arc chamfer is set at the connection between one end of the arc segment away from the straight segment and the bottom.

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