Esophageal trachea retractor for anterior cervical orthopedic surgery

Abstract

The utility model relates to the technical field of orthopedic medical instruments, in particular to an esophageal trachea retractor for anterior cervical orthopedic surgery. The retractor comprises a retraction baffle, a screw rod and a tail cap, a screw section is arranged at the lower end of the screw rod, a smooth rod is arranged in the middle of the screw rod, a threaded section is arranged at the upper end of the screw rod, and a clamping edge is arranged at the joint of the screw section and the smooth rod; the retraction baffle is provided with two channels for the smooth rod and the threaded section of the screw rod to penetrate through, and the channels are limited on the clamping edge. And the tail cap is connected to the threaded section and is limited on the retraction baffle plate. Generally, two groups of esophageal and tracheal retractors for anterior cervical orthopedic surgery are used together, before use, a to-be-retracted angle is preliminarily determined, a screw section of a screw rod is implanted into a proper position of a vertebral body, a retracting baffle is inserted into a smooth rod and a threaded section of the screw rod along a channel, the threaded section extends upwards from the channel of the retracting baffle, a tail cap is screwed into the threaded section, and the tail cap is screwed into the threaded section. The tail cap and the clamping edge limit the retraction baffle, installation is rapid, and retraction is stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to orthopedics medical instrument technical field, especially a cervical vertebra front road orthopedics operation esophagus trachea retractor. BACKGROUND

[0002] Cervical vertebra front road orthopedics operation can remove intervertebral disc and bone hyperplasia without directly interfering with spinal cord, and removes spinal instability factors through interbody bone grafting after decompression. SUMMARY

[0003] The utility model discloses a cervical vertebra front road orthopedics operation esophagus trachea retractor, overcome the insufficient of prior art, and installation is convenient, and the error accommodation degree of installation interval is high.

[0004] The utility model discloses a cervical vertebra front road orthopedics operation esophagus trachea retractor, overcome the insufficient of prior art, and installation is convenient, and the error accommodation degree of installation interval is high.

[0005] A cervical vertebra front road orthopedics operation esophagus trachea retractor, including retraction baffle, screw rod and tail cap, wherein:

[0006] The lower extreme of screw rod is provided with screw segment, and the middle part is provided as smooth rod, and the upper end is provided with screw segment, and the connecting place of screw segment and smooth rod is provided with clamping edge;

[0007] Two channels for the smooth rod and the screw segment of the screw rod are arranged on the retraction baffle, and the channel is limited above the clamping edge;

[0008] The tail cap is connected to the screw segment and is limited above the retraction baffle;

[0009] The cervical vertebra front road orthopedics operation esophagus trachea retractor is generally used with two groups, before use, the angle to be retracted is determined initially, the screw segment of screw rod is implanted into the suitable position of vertebral body, the smooth rod and the screw segment of screw rod are inserted into the retraction baffle along the channel, the screw segment is stretched upwards from the channel of retraction baffle, the tail cap is screwed into the screw segment, and the tail cap is limited to the retraction baffle with the clamping edge, and the installation is rapid and stable.

[0010] Further, at least one channel on the same retraction baffle is a strip-shaped channel with a long circular cross section, and the strip-shaped channel can ensure that there is a certain error in the installation interval of two screw rods and smoothly pass through the two channels.

[0011] Further, the wall of the channel is provided with a gap vertically penetrating through, and the gap is smaller than the smooth rod diameter of the screw rod, so as to provide certain deformation cooperation for the channel.

[0012] Further, the two ends of the retractor baffle are concave, and the channels are arranged between the concave surfaces, so as to facilitate force support and prevent unnecessary damage to the human body.

[0013] Further, the outer wall of the tail cap is provided with an anti-skid structure, facilitating operation.

[0014] Compared with the prior art, the cervical vertebra front road orthopedic surgery esophagus trachea retractor has the following advantages: rapid installation, stable pulling, the setting of the strip-shaped channel can ensure that there is a certain error in the installation interval of the two screw rods, and the smooth rod of the screw rod can also smoothly pass through the two channels, and the gap provides certain deformation cooperation for the channel. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is an exploded schematic diagram of the structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the utility model in the use state;

[0018] Among them, 1 retractor baffle, 11 channel, 12 strip-shaped channel, 13 gap, 2 screw rod, 21 screw segment, 22 smooth rod, 23 threaded segment, 24 clamping edge, 3 tail cap. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model.

[0020] As Figure 1-3 shown in the embodiments, a cervical vertebra front road orthopedic surgery esophagus trachea retractor includes a retractor baffle 1, a screw rod 2 and a tail cap 3, wherein:

[0021] The lower end of the screw rod 2 is provided with a screw segment 21, the middle part is provided as a smooth rod 22, and the upper end is provided with a threaded segment 23, and the clamping edge 24 is arranged at the connection position of the screw segment 21 and the smooth rod 22;

[0022] The retractor baffle 1 is provided with two channels 11 for the smooth rod 22 and the threaded segment 23 of the screw rod 2 to pass through, and the channel 11 is limited above the clamping edge 24;

[0023] The tail cap 3 is connected to the threaded section 23 and is positioned above the retractor shield 1.

[0024] The cervical vertebrae front road orthopedic surgery esophagus trachea retractor is generally used with two groups, before use, the angle to be retracted is preliminarily determined, the screw section 21 of the screw rod 2 is implanted into the vertebrae, the retractor shield 1 is inserted into the smooth rod 22 and the threaded section 23 of the screw rod 2 along the channel 11, the threaded section 23 is extended upwards from the channel 11 of the retractor shield 1, the tail cap 3 is screwed into the threaded section 23, the tail cap 3 and the clamping edge 24 limit the retractor shield 1, the installation is rapid and the traction is stable.

[0025] In the embodiment, at least one channel 11 on the same retractor shield 1 is a strip-shaped channel 12 with a long circular transverse section, the strip-shaped channel 12 can ensure that there is a certain error in the installation interval of the two screw rods 2 and can also ensure that the smooth rod 22 of the screw rod 2 smoothly passes through the two channels 11.

[0026] In the embodiment, the wall of the channel 11 is provided with a gap 13 extending upwards and downwards, the size of the gap 13 is smaller than the diameter of the smooth rod 22 of the screw rod 2, and the channel 11 is provided with a certain deformation fit.

[0027] In the embodiment, the two ends of the retractor shield 1 are concave, and the channels 11 are arranged between the concave surfaces, so as to facilitate force support and prevent unnecessary damage to the human body.

[0028] In the embodiment, the outer wall of the tail cap 3 is provided with an anti-skid structure, which is convenient for operation

[0029] The above specific embodiments are only specific cases of the utility model, and the patent protection range of the utility model includes but is not limited to the product forms and styles of the above specific embodiments, any appropriate changes or modifications made by any ordinary technical personnel in the technical field to the utility model claims and any patent protection range of the utility model shall fall within the patent protection range of the utility model.

Claims

1. An esophageal and tracheal retractor for anterior cervical orthopedic surgery, characterized by: It includes a retractor baffle, a screw rod and a tail cap, wherein: The lower end of the screw rod is provided with a screw section, the middle part is provided with a smooth rod, the upper end is provided with a threaded section, and the connection between the screw section and the smooth rod is provided with a clamping edge; The retraction baffle is provided with two passages for the smooth rod and the threaded section of the screw rod to pass through, and the passages are limited above the clamping edge; The tail cap is connected to the threaded section and is limited on the retraction baffle.

2. The esophageal and tracheal retractor for anterior cervical orthopedic surgery according to claim 1, characterized in that: At least one of the channels on the same retraction baffle is a strip-shaped channel with an oblong cross section.

3. The esophageal and tracheal retractor for anterior cervical orthopedic surgery according to claim 1, characterized in that: A gap that penetrates vertically is provided on the wall of the channel.

4. The esophageal and tracheal retractor for anterior cervical orthopedic surgery according to claim 1, characterized in that: Both ends of the retraction baffle are concavely arranged, and the channels are arranged between the concave surfaces.

5. The esophageal and tracheal retractor for anterior cervical orthopedic surgery according to claim 1, characterized in that: The outer wall of the tail cap is provided with an anti-slip structure.

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