CN209629871U - A kind of tractor strutting edentulous region mucous membrane automatically - Google Patents

Abstract

The utility model discloses a retractor for automatically stretching the mucous membrane of a dentition area, which comprises a main shaft and an arcuate arm. The arcuate arm is a symmetrical structure with elasticity. The main shaft is provided with threads, and the main shaft is connected with the center hole of the arcuate arm through the threads. ; The lower end of the main shaft is hinged with two connecting arms, and the other ends of the two connecting arms are respectively hinged with the inner walls on both sides of the arcuate arm. The retractor has the advantages of more thorough exposure of the field of view in the operation area, self-adjustable pulling degree, avoiding the tearing of the mucosa in the operation area by pulling the suture thread, and liberating the assistant of the surgeon.

Description

A retractor that automatically stretches the mucous membrane of the edentulous area

technical field

The utility model relates to the technical field of implant restoration after tooth loss. In particular, it relates to a retractor for automatically stretching the mucous membrane of the edentulous area.

Background technique

At present, the mucosal retraction technique used in implant placement, bone grafting, maxillary sinus floor elevation through the alveolar crest approach, and the second-stage surgery of implants that require bone removal due to deep burial all use sutures. Line pull. In many cases, this method not only fails to fully expose the field of view of the operation area, but also sometimes restricts the operation of the surgeon's assistant, and even causes mucosal tearing due to high tension.

Utility model content

The purpose of this utility model is to provide a retractor that automatically stretches the mucous membrane of the edentulous area aiming at the above-mentioned existing situation. The retractor has the advantages of more thorough exposure of the field of view in the operation area, self-adjustable pulling degree, avoiding the tearing of the mucosa in the operation area by pulling the suture thread, and liberating the assistant of the surgeon.

In order to achieve the above object, the utility model adopts the following technical means:

A retractor for automatically stretching the mucous membrane of the edentulous area, including a main shaft and an arcuate arm. The arcuate arm is a symmetrical structure with elasticity. The main shaft is provided with a thread, and the main shaft is connected to the center hole of the arcuate arm through the thread; the lower end of the main shaft is hinged. Two connecting arms, the other ends of the two connecting arms are respectively hinged with the inner walls on both sides of the arcuate arm. The bow-shaped arm includes auxiliary arms arranged on both sides of the main shaft and arm ends connected with the auxiliary arms, the upper parts of the two auxiliary arms are connected, and the two arm ends are bent and arranged facing each other.

The part where the main shaft protrudes from the central hole of the arched arm is provided with a nut.

The end of the arm end is a tip, and the tip is provided with a protective cap.

The two auxiliary arms are connected to form a V-shape or a U-shape.

The connecting arm is connected with the inner wall of the arm end.

The length of the arm end is 10mm, 15mm, 20mm, 25mm or 30mm.

Compared with the prior art, the utility model has the following advantages:

The arched arm included in the utility model is a symmetrical structure with elasticity, and the main shaft is connected with the central hole of the arched arm through threads. The opening space of the arched arm is adjusted by the rotation of the main shaft, and the operation of the oral implant is performed. The retractor has the advantages of more thorough exposure of the field of view in the operation area, self-adjustable pulling degree, avoiding the tearing of the mucosa in the operation area by pulling the suture thread, and liberating the assistant of the surgeon.

Description of drawings

Fig. 1 is a three-dimensional view of a retractor of the utility model that automatically stretches the mucous membrane of the edentulous area;

Fig. 2 is a schematic structural view of a retractor of the utility model that automatically stretches the mucous membrane of the edentulous area;

Wherein, 1 is a nut, 2 is a thread, 3 is an auxiliary arm, 4 is a main shaft, 5 is a connecting arm, 6 is an arm end, 7 is a tip, 8 is a protective cap, and 9 is a bow arm.

Detailed ways

Below in conjunction with specific embodiment and accompanying drawing, the utility model is described in detail:

The utility model is a retractor for automatically stretching the mucous membrane of the edentulous area, as shown in Figure 1, the structure of the utility model is similar to that of the forming clip shown in the right figure, and the principle of use is similar. Change the horizontal arm end 6 of the molding clip on the right to be longitudinal, and the tip 7 to be tapered, and equipped with a protective cap 8.

A retractor that automatically stretches the mucosa of the edentulous area, mainly used for the long mesial-distal diameter of the edentulous area, thick alveolar mucosa, implant implantation, bone grafting or transalveolar crest approach Edentulous patients who are not easy to pull the mucosa to expose the field of view during maxillary sinus floor lifting surgery. It is made of medical pure titanium material and prepared by mechanical processing.

As shown in Figures 1 and 2, a retractor that automatically stretches the mucosa of the edentulous area includes a main shaft 4 and an arcuate arm 9, the arcuate arm 9 is a symmetrical structure with elasticity, and the main shaft 4 is provided with a thread 2, The main shaft 4 is connected with the central hole of the arc arm 9 through the thread 2 . The lower end of the main shaft 4 is hinged to two connecting arms 5 , and the other ends of the two connecting arms 5 are respectively hinged to the inside of an auxiliary arm 3 of the arcuate arm 9 .

The arched arm 9 includes an auxiliary arm 3 arranged on both sides of the main shaft 4 and an arm end 6 connected to the auxiliary arm 3 , and the upper parts of the two auxiliary arms 3 are connected to form an elastic one-piece arched arm 9 . The part connected to the main shaft 4 is designed with a thread 2, and a nut 1 is arranged on the upper part of the main shaft 4 to rotate.

The two auxiliary arms 3 are symmetrically distributed on both sides of the main shaft 4, and are controlled by the handle nut 1; The movable connecting arm 5.

The end of the auxiliary arm 3 is provided with an arm end 6 , the end of the arm end 6 is a tip 7 , and the arm end 6 is provided with a protective cap 8 . The arm end 6 is distributed on both sides of the main shaft 4 in parallel, has a tapered tip 7 and a corresponding protective cap 8, and can be selected according to the specific condition of the patient.

The length of the arm end 6 of the utility model is divided into five different specifications of 10mm, 15mm, 20mm, 25mm, and 30mm, and a suitable specification is selected according to the size of the near-distal diameter of the patient's edentulous area.

The utility model adopts an invasive way of transmucosal penetration, that is, after incising the patient's alveolar ridge mucosa and flapping, select a type A retractor with appropriate specifications according to the needs, and separate the front wall of the retractor from both sides of the edentulous area. It passes through the mucosa of the mesial and proximal alveolar ridges, and then passes in from the mucous membranes of the distal, middle and distal alveolar ridges. The conical tip 7 covers the protective cap 8 to protect the surrounding tissues, and the mucosa is stretched by adjusting the adjustment screw at the handle end of the retractor. Degree. After the operation, the retractor is pulled out, and a stitch can be sutured or it can heal automatically. Compared with the traditional way of pulling with sutures, this retractor has the advantages of more thorough exposure of the field of view in the operation area, self-adjustable pulling degree, avoiding mucosal tearing caused by pulling the sutures on the mucosa of the operation area, and liberating the assistant of the surgeon.

The method of using the mucosal retractor in the type A edentulous area: adopt an invasive transmucosal method, including the following steps:

(1) Sterilize the Type A retractor;

(2) Cut and strip the alveolar bone soft tissue in the edentulous area to expose the alveolar bone;

(3) The front wall of the retractor is respectively pierced through the mesial and proximal alveolar ridge mucosa on both sides of the edentulous area, and then introduced from the distal, middle and distal alveolar ridge mucosa, and then covered with a protective cap 8 at its conical tip 7 protect surrounding tissues;

(4) Adjust the degree of stretching the mucous membrane through the adjusting screw at the handle end of the retractor;

(5) Pull out the retractor after the operation.

The above content is a further detailed description of the utility model in conjunction with specific preferred embodiments. It cannot be determined that the specific embodiment of the utility model is limited to this. Under the premise of the new concept, some simple deduction or replacement can also be made, which should be regarded as belonging to the utility model and the patent protection scope is determined by the submitted claims.

Claims (6)

1. A retractor for automatically stretching the mucous membrane of the edentulous area, characterized in that: it comprises a main shaft (4) and an arcuate arm (9), and the arcuate arm (9) is a symmetrical structure with elasticity, and the upper part of the main shaft (4) A screw thread (2) is provided, and the main shaft (4) is connected with the central hole of the arched arm (9) through the screw thread (2); the lower end of the main shaft (4) is hinged with two connecting arms (5), and the other of the two connecting arms (5) One end is respectively hinged with the inner walls on both sides of the arched arm (9); said arched arm (9) includes auxiliary arms (3) arranged on both sides of the main shaft (4) and arm ends ( 6), the upper parts of the two auxiliary arms (3) are connected, and the two arm ends (6) are bent and arranged facing each other. 2. The retractor for automatically stretching the mucous membrane of the edentulous area according to claim 1, characterized in that: the part where the main shaft (4) protrudes from the central hole of the arcuate arm (9) is provided with a nut (1) . 3. The retractor for automatically stretching the mucosa of edentulous areas according to claim 1, characterized in that: the end of the arm end (6) is a tip (7), and the tip (7) is provided with a protective cap (8). 4. The retractor for automatically stretching the mucosa of edentulous areas according to claim 1, characterized in that: two auxiliary arms (3) are connected to form a V-shape or a U-shape. 5. The retractor for automatically stretching the mucosa of edentulous areas according to claim 1, characterized in that: the connecting arm (5) is connected to the inner wall of the arm end (6). 6. The retractor for automatically stretching the mucosa of edentulous areas according to claim 1, characterized in that: the length of the arm end (6) is 10mm, 15mm, 20mm, 25mm or 30mm.