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Craniomaxilla retractor

A retractor and jawbone technology, applied in the field of medical devices, to reduce the chance of postoperative infection and facilitate postoperative care

Pending Publication Date: 2017-05-10
PLASTIC SURGERY HOSPITAL CHINESE ACAD OF MEDICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the current detachable retractor, the part where the extension rod is separated from the main body is located at one end of the main body, and this part is embedded in the tissue after the operation. The extension rod can only be removed by cutting and exposing the separated joint, which brings great pain and inconvenience to the patient

Method used

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Examples

Experimental program
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Embodiment 1

[0036] Example 1, please refer to Figure 1 to Figure 5 , figure 1 A schematic diagram of the overall structure of a specific embodiment of the craniomandibular distractor provided by the present invention; figure 2 for figure 1 Schematic disassembly of the illustrated embodiment; image 3 for figure 1 Schematic partial assembly of the embodiment shown; Figure 4 for figure 1 A disassembled schematic diagram of some parts of the illustrated embodiment; Figure 5 It is a schematic diagram of partial disassembly of the universal joint.

[0037] A craniomandibular retractor provided in this embodiment includes a main body sleeve 1, a main body screw 2 and a fixed titanium plate 3, the fixed titanium plate 3 is two, and the upper section of the main body screw 2 is provided with a positive thread 21, the other section is provided with a reverse thread 22, and the two fixed titanium plates 3 are respectively screwed on the two sections of threads.

[0038] The threaded end...

Embodiment 2

[0045] Example 2, please refer to Figure 6 , Figure 7 , Figure 6 It is a schematic diagram of the overall structure of a specific embodiment of another craniomandibular distractor provided by the present invention; Figure 7 for Figure 6 Schematic diagram of the structure of the fixed titanium plate in the shown embodiment.

[0046] In this embodiment, the difference from Embodiment 1 is that the fixed titanium plate is integrally formed, and the rest of the structure is the same. Although the fixed titanium plate of this one-piece structure is not detachable like in Example 1, it is easy to manufacture and has lower cost.

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Abstract

The invention relates to a craniomaxilla retractor comprising a retractor body sleeve, a retractor body screw and a titanium fixing plate. The screwed end of the retractor body screw is arranged in the retractor body sleeve, one end of the titanium fixing plate is fitted to the retractor body screw in a screwed manner and is arranged in the retractor body sleeve, and the other end is exposed to the retractor body sleeve. The craniomaxilla retractor further comprises a universal joint and an extension rod assembly, one end of the universal joint is connected to the retractor body screw, the other end is connected to the extension rod assembly detachably, and the extension rod assembly rotates to drive the retractor body screw to rotate so as to drive the titanium fixing plate to move along the retractor body sleeve. The craniomaxilla retractor is provided with the detachable extension rod, the wound cutting of a patient is omitted while the extension rod is detached, and accordingly the pain of the patient is reduced greatly.

Description

technical field [0001] The invention belongs to the technical field of medical instruments used in cranial and jaw surgery and plastic surgery, and in particular relates to a craniocandibular retractor. Background technique [0002] Craniomandibular distractors have been widely used in oral and maxillofacial or cranial surgery and plastic surgery. The application principle of the retractor can be summarized as follows: first cut the soft tissue around the jaw, and then cut the jaw completely or incompletely. , use external force to gradually spread the broken ends of the bone to form a gap, and use the traction force to induce the bone formation ability of the jaw itself to continuously form new bone to fill the gap and achieve the purpose of extending the jaw. This technology utilizes the tissue regeneration potential of the body to repair bone defects or deformities caused by various congenital or acquired reasons. [0003] In the existing craniomandibular distractor, its...

Claims

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Application Information

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IPC IPC(8): A61B17/02A61B17/56
CPCA61B17/025A61B2017/564
Inventor 游远榕归来
Owner PLASTIC SURGERY HOSPITAL CHINESE ACAD OF MEDICAL SCI
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