Nasal septum distraction device

Abstract

The utility model provides a nasal septum distraction device. The nasal septum distraction device comprises a pin shaft, a limiting piece and two supporting pieces. Each supporting piece comprises a connecting rod, a nasal septum supporting plate and a nose wing supporting plate, and the main body parts of the connecting rods of the two supporting pieces are hinged together through a pin shaft; the planes where the nasal septum supporting plate and the nose wing supporting plate are located are perpendicular to the planes where the main body parts of the two connecting rods are located respectively, and the included angle between the planes where the nasal septum supporting plate and the nose wing supporting plate on the same supporting piece are located ranges from 70 degrees to 100 degrees. The nasal septum supporting plate and the nose wing supporting plate protrude out of the plane where the main body parts of the two connecting rods are located in the first direction. The two ends of the limiting piece are arranged on the connecting rods of the two supporting pieces respectively, and when the nasal septum opening device is inserted into the nostrils, the two nasal septum supporting plates open the nasal septum cartilage membrane, and the two nose wing supporting plates abut against the inner sides of the nose wings. According to the utility model, the nose plastic surgery can be greatly facilitated.

Description

Technical Field

[0001] This utility model relates to the field of nasal plastic surgery instruments, and in particular to a nasal septum expansion device. Background Technology

[0002] Comprehensive rhinoplasty refers to procedures performed on two or more areas of the nose, including the bridge, tip, alar, and columella, in a single surgery. This involves raising the bridge, reshaping the tip, and narrowing the alar in one procedure. Ear cartilage, being elastic cartilage, can be harvested in large quantities without affecting the ear's shape and can be used for tip reshaping. Rib cartilage, being collagenous cartilage, can be harvested in sufficient quantities and used for bridge elevation and reshaping, although the method is more complex and difficult. These cartilage-based augmentation techniques all fall under the category of comprehensive rhinoplasty.

[0003] The shape of the nasal tip is determined by the thickness of the soft tissue at the nasal tip and the framework structure formed by the three types of cartilage—the alar cartilage, septal cartilage, and lateral nasal cartilage—connected by fibers and fascia. In rhinoplasty, it is usually necessary to separate these three types of cartilage to build this framework. Current surgical methods involve one or two assistants using retractors to separate them, which not only increases the manpower required for the surgery but also introduces numerous instabilities due to manual pulling. Utility Model Content

[0004] The purpose of this invention is to provide a nasal septum expansion device to facilitate the smooth execution of rhinoplasty.

[0005] The technical solution adopted by this utility model to solve its technical problem is to provide a nasal septum opening device, including a pin, a limiting member, and two supporting members; each of the supporting members includes a connecting rod, a nasal septum support plate connected to the first end of the connecting rod, and a nasal wing support plate connected to the last end of the connecting rod, and the main body parts of the connecting rods of the two supporting members are hinged together by the pin; the planes where the nasal septum support plate and the nasal wing support plate are located are respectively perpendicular to the planes where the main body parts of the two connecting rods are located, and the included angle between the planes where the nasal septum support plate and the nasal wing support plate are located on the same supporting member is between 70° and 100°; The nasal septum support plate and the nasal alar support plate protrude from the plane containing the main body of the two connecting rods in a first direction, and the protrusion dimension of the nasal alar support plate is smaller than that of the nasal septum support plate. The first direction is perpendicular to the plane containing the main body of the two connecting rods. The two ends of the limiting member are respectively installed on the connecting rods of the two supporting members, and the distance between the two nasal septum support plates is kept fixed by preventing the two connecting rods from rotating around the pin. When the nasal septum opening device is inserted into the nostril, the two nasal septum support plates open the nasal septum perichondrium and the two nasal alar support plates abut against the inner side of the nasal alar.

[0006] As a further improvement of this utility model, each of the connecting rods of the two support members has a positioning post. The limiting member includes a fixing hole and multiple limiting grooves. The limiting member is installed on the connecting rods of the two support members in such a way that the positioning post on one of the connecting rods is inserted into the fixing hole and the positioning post on the other connecting rod is embedded in one of the limiting grooves.

[0007] As a further improvement of this utility model, the two positioning posts protrude from the connecting rods in a second direction, which is perpendicular to the plane containing the main body of the two connecting rods and is opposite to the first direction.

[0008] As a further improvement of this utility model, the limiting member is in the shape of a flat plate, and at least one edge along the length direction of the limiting member is arc-shaped, and the plurality of limiting grooves are located on the arc-shaped edge of the limiting member.

[0009] As a further improvement of this utility model, on each of the connecting rods, the positioning post is located between the pin and the nose wing support plate.

[0010] As a further improvement of this utility model, the first end of the connecting rod has a first arc-shaped segment bent in a first direction, and the nasal septum support plate is connected to the free end of the first arc-shaped segment.

[0011] As a further improvement of this utility model, the tail end of the connecting rod has a second arc-shaped segment, and the nose wing support plate is connected to the free end of the second arc-shaped segment. The second arc-shaped segment is located on the plane where the main bodies of the two connecting rods are located.

[0012] As a further improvement of this utility model, at least a portion of the nose wing support plate protrudes in a second direction from the plane containing the main body portions of the two connecting rods, the second direction being perpendicular to the plane containing the main body portions of the two connecting rods, and the second direction being opposite to the first direction.

[0013] As a further improvement of this utility model, the connecting rod is straight, and on the same support member, the distance from the nasal wing support plate to the pin is less than the distance from the nasal septum support plate to the pin.

[0014] As a further improvement of this utility model, the size of the nasal septum support plate is 10×8mm, and the size of the nasal alar support plate is 5×10mm.

[0015] The present invention has the following advantages: the two support members are hinged together by a pin, and the nasal alar support plates on the two support members abut against the inner side of the nasal alar, and the nasal septum support plate opens the nasal septum cartilage membrane, so that the nasal septum cartilage area is exposed, which facilitates the corresponding rhinoplasty. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the nasal septum spreading device provided by this utility model.

[0017] Figure 2 This is another structural schematic diagram of the nasal septum spreading device provided by this utility model.

[0018] Figure 3 This is another structural schematic diagram of the nasal septum spreading device provided by this utility model. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] like Figures 1-3 The diagram shown is a structural schematic of the nasal septum expansion device provided in this embodiment of the invention. This nasal septum expansion device can be applied to nasal plastic surgery, such as nasal bridge augmentation and nasal tip shaping. The nasal septum expansion device of this embodiment includes a pin 20, a limiting member 30, and two supporting members. The pin 20, the limiting member 30, and the two supporting members can all be made of rigid metal materials such as stainless steel. The two supporting members are hinged together by the pin 20, and the limiting member 30 limits the angle of rotation of the two supporting members around the pin 20.

[0021] Each of the aforementioned support components includes a connecting rod 11, a nasal septum support plate 12, and a nasal alar support plate 13. The nasal septum support plate 12 is connected to the first end of the connecting rod 11, and the nasal alar support plate 13 is connected to the second end of the connecting rod 11. For ease of assembly and sterilization, the connecting rod 11, the nasal septum support plate 12, and the nasal alar support plate 13 can be of one integrated structure. For example, the corresponding shapes of the connecting rod 11, the nasal septum support plate 12, and the nasal alar support plate 13 can be cut from a stainless steel plate, and then bent and polished to form the support component.

[0022] In the aforementioned nasal septum support assembly, the main bodies of the connecting rods 11 of the two support members are hinged together by pins 20, thereby allowing the included angle between the two connecting rods 11 to be variable, and correspondingly, the distance between the two nasal septum support plates 12 can also be variable. The aforementioned nasal septum support plate 12 can be flat (its thickness can be between 0.2-0.5mm), and the nasal alar support plate 13 can be flat or an arc-shaped plate adapted to the shape of the inner side of the nasal alar (its thickness can be between 0.2-0.5mm). The surfaces of the nasal septum support plate 12 and the nasal alar support plate 13 are perpendicular to the planes of the main bodies of the two connecting rods 11 (ignoring the dimensions of the main bodies of the two connecting rods 11 in the first direction), and the included angle between the surfaces of the nasal septum support plate 12 and the nasal alar support plate 13 on the same support member is between 70° and 100° (preferably around 90°). The size of the nasal septum support plate 12 can be 10×8mm, and the size of the nasal alar support plate 13 can be 5×10mm. In practical applications, the above dimensions can be adjusted according to the type of surgery and the required opening angle.

[0023] The nasal septum support plate 12 and the nasal alar support plate 13 are respectively oriented in the first direction (e.g., Figure 2 The direction indicated by the middle arrow X) protrudes beyond the plane containing the main body of the two connecting rods 11, and the protruding dimension of the nasal alar support plate 13 is smaller than the protruding dimension of the nasal septum support plate 12. The aforementioned first direction is perpendicular to the plane containing the main body of the two connecting rods 11.

[0024] The two ends of the limiting member 30 are respectively installed on the connecting rods 11 of the two support members, and the distance between the two nasal septum support plates 12 is kept fixed by preventing the two connecting rods 11 from rotating around the pin 20. When the nasal septum opening device is inserted into the nostril, the two nasal septum support plates 12 open the nasal septum perichondrium and the two nasal alar support plates 13 abut against the inner side of the nasal alar.

[0025] When using the aforementioned nasal septum retractor for rhinoplasty, after the nasal septum perichondrium is cut and the limiting member 30 is opened, the nasal septum retractor is inserted into the nostril along the axial direction of the pin 20 (the distance between the two nasal septum retractors 12 is relatively small), and the two nasal septum retractors 12 are respectively inserted between the nasal septum cartilage and perichondrium on both sides of the nasal septum cartilage (since both the nasal septum retractor 12 and the alar retractor 13 protrude in the first direction from the plane where the two connecting rods 11 are located, the distance between the nasal septum retractors 12 and the alar retractor 13 is relatively small). When the nasal septum is between the bone and the perichondrium, the two alar support plates 13 are respectively placed against the inner sides of the two alar wings, while the two connecting rods 11 are located on the outer sides of the nostrils. Then, by rotating the two connecting rods 11 around the pin 20, the opening angle of the two nasal septum support plates 12 is increased until the nasal septum cartilage is exposed. At this point, the limiting member 30 is fixed to the two connecting rods 11, so that the opening angle of the two nasal septum support plates 12 is kept fixed. Through the gap between the two connecting rods below the pin, surgical operations can be performed on the nasal septum cartilage area. The presence of the alar support plates 13 improves the stability of the nasal septum opening device after it is inserted into the nostril.

[0026] The aforementioned nasal septum opening device hinges two support members together via a pin 20. The nasal alar support plates 20 on the two support members abut against the inner side of the nasal alar, and the nasal septum support plate 12 opens the nasal septum cartilage membrane, exposing the nasal septum cartilage area without the need for manual pulling, thus facilitating the corresponding rhinoplasty.

[0027] Considering individual differences among patients, in practical applications, multiple septal expansion devices of different sizes can be prepared (e.g., different lengths of connecting rods 20, different dimensions of septal expansion plates 12 protruding from the plane of the two connecting rods 20, different dimensions of the two alar expansion plates 13, etc.). Thus, in rhinoplasty, different sizes of septal expansion devices can be selected according to the specific situation of the patient.

[0028] Combination Figure 1 , Figure 2As shown, in one embodiment of this utility model, each of the connecting rods 11 of the two support members has a positioning post 14. The limiting member 30 includes a fixing hole and multiple limiting grooves. The limiting member 30 is installed on the connecting rods 11 of the two support members by inserting the positioning post 14 on one of the connecting rods 11 into the fixing hole and the positioning post 14 on the other connecting rod 11 into one of the limiting grooves. During surgery, the positioning post 14 of one connecting rod 11 can be inserted into the fixing hole first. After inserting the nasal septum expander into the nostril and adjusting the opening angle of the two connecting rods 11, the limiting member 30 can be moved to make the positioning post 14 on the other connecting rod 11 embed into the corresponding limiting groove, thereby completing the assembly of the limiting member 30. In practical applications, the limiting member 30 can also be directly hinged to one of the connecting rods 11. The above structure greatly facilitates the adjustment of the opening angle of the connecting rods 11 and the assembly of the limiting member 30.

[0029] To facilitate the fixing of the limiting member 30, in one embodiment of this utility model, two positioning posts 14 protrude from the connecting rod 11 in a second direction, which is perpendicular to the plane containing the main body of the two connecting rods 11 and opposite to the first direction. Thus, when the nasal septum support plate 12 and the nasal alar support plate 13 are inserted into the nostrils, both positioning posts 14 and the limiting member 30 are located outside the nostrils, facilitating the assembly of the limiting member 30 onto the connecting rod 11.

[0030] Specifically, the aforementioned limiting member 30 may be flat, and at least one edge along the length direction of the limiting member 30 may be arc-shaped, with multiple limiting grooves located on the arc-shaped edge along the length direction of the limiting member. This structure facilitates the insertion of the positioning post 14 into the limiting groove. In practical applications, the aforementioned limiting groove may also be replaced by a through hole.

[0031] In one embodiment of this invention, on each connecting rod 11, a positioning post 14 is located between the pin 20 and the nasal alar support plate 13. Thus, when the nasal septum opening device is used, the positioning member 30 can avoid the surgical operation area, facilitating nasal reshaping operations.

[0032] In one embodiment of this utility model, the first end of the connecting rod 11 has a first arc-shaped segment bent in a first direction, and the nasal septum support plate 12 is connected to the free end of the first arc-shaped segment. This structure allows the nasal septum support plate 12 to be relatively small in size, and the arc-shaped structure will not damage the nasal tissues, facilitating the insertion of the nasal septum support plate 12 between the nasal septum perichondrium and the nasal septum cartilage.

[0033] In one embodiment of this utility model, the tail end of the connecting rod 11 has a second arc-shaped segment, and the nasal wing support plate 13 is connected to the free end of the second arc-shaped segment. The second arc-shaped segment is located in the plane where the two connecting rods 11 are located. Through the second arc-shaped segment, the nasal wing support plate 13 can be adapted to the shape of the nasal wing, further improving the stability of the nasal septum opening device after it is inserted into the nostril.

[0034] In one embodiment of this utility model, at least a portion of the nasal alar support plate 13 protrudes in a second direction from the plane containing the main bodies of the two connecting rods 11. This second direction is perpendicular to the plane containing the main bodies of the two connecting rods 11 and is opposite to the first direction. That is, after the nasal septum support plate 12 is inserted between the nasal septum perichondrium and the nasal septum cartilage, at least a portion of the nasal alar support plate 13 is located outside the nostrils, thereby facilitating adjustment of the opening angle of the two connecting rods 11 through the portion protruding from the nostrils.

[0035] Specifically, the connecting rods 11 are straight, and on the same support, the distance from the nasal alar support plate 13 to the pin 20 is less than the distance from the nasal septum support plate 12 to the pin 20. This allows for a relatively large space below the pin 20 after the two connecting rods 11 are spread apart, facilitating the operation of surgical instruments on the surgical area.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A nasal septum dilator comprising: The device includes a pin, a limiting component, and two supporting components. Each supporting component includes a connecting rod, a nasal septum support plate connected to the first end of the connecting rod, and a nasal alar support plate connected to the second end of the connecting rod. The main bodies of the connecting rods of the two supporting components are hinged together by a pin. The planes containing the nasal septum support plate and the nasal alar support plate are perpendicular to the planes containing the main bodies of the two connecting rods, and the included angle between the planes containing the nasal septum support plate and the nasal alar support plate on the same supporting component is between 70° and 100°. The nasal septum support plate and the nasal alar support plate face the first... The first direction protrudes from the plane containing the main body parts of the two connecting rods, and the protruding dimension of the nasal alar support plate is smaller than that of the nasal septum support plate. The first direction is perpendicular to the plane containing the main body parts of the two connecting rods. The two ends of the limiting member are respectively installed on the connecting rods of the two supporting members, and the distance between the two nasal septum support plates is kept fixed by preventing the two connecting rods from rotating around the pin. When the nasal septum opening device is inserted into the nostril, the two nasal septum support plates open the nasal septum perichondrium and the two nasal alar support plates abut against the inner side of the nasal alar.

2. The nasal septum spreading device as described in claim 1, characterized in that, Each of the two supporting members has a positioning post on its connecting rod. The limiting member includes a fixing hole and multiple limiting grooves. The limiting member is installed on the connecting rods of the two supporting members in such a way that the positioning post on one connecting rod is inserted into the fixing hole and the positioning post on the other connecting rod is embedded in one of the limiting grooves.

3. The nasal septum spreading device as described in claim 2, characterized in that, The two positioning posts protrude from the connecting rods in a second direction, which is perpendicular to the plane containing the main body of the two connecting rods and is opposite to the first direction.

4. The nasal septum spacer device of claim 2, wherein The limiting member is flat, and at least one edge along the length direction of the limiting member is arc-shaped, and the plurality of limiting grooves are located on the arc-shaped edge of the limiting member.

5. The nasal septum spacer device of claim 2, wherein On each of the connecting rods, the positioning post is located between the pin and the nose wing support plate.

6. The nasal septum spacer device of claim 1, wherein The first end of the connecting rod has a first arc-shaped segment that bends toward a first direction, and the nasal septum support plate is connected to the free end of the first arc-shaped segment.

7. The nasal septum spacer device of claim 1, wherein The tail end of the connecting rod has a second arc-shaped segment, and the nose wing support plate is connected to the free end of the second arc-shaped segment. The second arc-shaped segment is located on the plane where the main body parts of the two connecting rods are located.

8. The nasal septum spreading device as described in claim 1, characterized in that, At least a portion of the nose wing support plate protrudes toward the plane containing the main body portions of the two connecting rods in a second direction, the second direction being perpendicular to the plane containing the main body portions of the two connecting rods and opposite to the first direction.

9. The nasal septum spacer device of claim 1, wherein The connecting rod is straight, and on the same support, the distance from the nasal wing support plate to the pin is less than the distance from the nasal septum support plate to the pin.

10. The nasal septum spacer device of claim 1, wherein The nasal septum support plate has a size of 10×8mm, and the nasal alar support plate has a size of 5×10mm.

Images