A multi-functional retractor assembly

Abstract

The present invention relates to the technical field of oral medical auxiliary instruments, and in particular to a multifunctional retractor assembly, which includes two retractors with the same structure and symmetrical left and right; the retractor includes an integrated hook part and a handle part, the hook part includes an integrated mucosal flap hook part and an oral angle hook part, and the oral angle hook part is connected to the handle part; a convex member is provided at the side end of the mucosal flap hook part away from the oral angle hook part, and a support positioning member connected to the convex member; the convex member includes a number of continuously arranged convexes, the connection position on the side away from the mucosal flap hook part of adjacent convexes is in a fillet transition, and the side of the convex away from the mucosal flap hook part is in a rounded corner setting; the support positioning member is a convex with a rectangular cross-section, and the support positioning member is provided with a first scale line along its length direction and a second scale line along its height direction. The multifunctional retractor assembly of the present invention can improve the comfort of the patient during the operation and also improve the accuracy of the operation of medical staff.

Description

Technical Field

[0001] The present invention relates to the technical field of oral medical auxiliary instruments, and particularly to a multifunctional retractor assembly. Background Art

[0002] During oral implant surgery, to ensure the smooth progress of the surgery, ensuring sufficient vision and light in the surgical area is a key factor for the success of the surgery. The prior art exposes the structure of the lateral wall of the maxillary sinus clearly by retracting the mucosa, protects the surrounding normal tissues, avoids causing unnecessary damage to these tissues during the surgery, enables the doctor to accurately perform the fenestration surgery, and thus improves the success rate of the surgery.

[0003] However, the existing retractor is only simply provided with a lip retractor part, a cheek retractor part and a handle part. During the process of fixing the retracted mucosa, there is a problem that the position cannot be precisely adjusted; in addition, during the fenestration surgery of the lateral wall of the maxillary sinus, the operation area is near the opening of the salivary gland duct, and excessive saliva will interfere with the surgical field of vision.

[0004] Therefore, it is crucial to provide a retractor that can solve the above technical problems. Summary of the Invention

[0005] In order to solve the above problems, the purpose of the present invention is to provide a multifunctional retractor assembly, which can improve the comfort of the patient during the surgery and also improve the accuracy of the operation of medical staff.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] The present invention provides a multifunctional retractor assembly, and the multifunctional retractor assembly includes two retractors with the same structure and symmetrical left and right;

[0008] The retractor includes an integrated hook part and a handle part, the hook part includes an integrated mucosal flap hook part and an oral angle hook part, and the oral angle hook part is connected to the handle part;

[0009] A convex member for stabilizing the retraction position of the mucosal flap and not damaging the surrounding tissues is provided at the side end of the mucosal flap hook part away from the oral angle hook part, and a support positioning member for positioning and connected to the convex member;

[0010] The convex member includes a plurality of continuously arranged convexes, the connection position on the side away from the mucosal flap hook part of adjacent convexes is in a fillet transition, and the side of the convex away from the mucosal flap hook part is in a rounded corner setting;

[0011] The support positioning member is a convex with a rectangular cross-section, and the support positioning member is provided with a first scale line along its length direction and a second scale line along its height direction.

[0012] In one embodiment of the present invention, a saliva suction tube is provided on the back of the retractor and runs through the length direction thereof, and the saliva suction tube is away from the supporting positioning member;

[0013] The end of the saliva suction tube close to the hook of the mucosal flap serves as the inlet of the saliva suction tube, and the end away from the hook of the mucosal flap serves as the outlet of the saliva suction tube;

[0014] When in use, the end of the saliva suction tube away from the mucosal flap hook is connected to the external negative pressure suction component through a connector;

[0015] The external connecting piece is provided with a switch for connecting or closing the connection passage between the saliva suction tube and the external negative pressure component.

[0016] In one embodiment of the present invention, there are two protrusions, the height of the protrusions is 5.5-6.5 mm, the thickness is 0.8-1.2 mm, and the length is 4-7 mm; preferably, the height of the protrusions is 5.8-6.2 mm, the thickness is 0.9-1.0 mm, and the length is 5-6 mm;

[0017] In one embodiment of the present invention, the distance between the position where adjacent protrusions are connected and the hook portion of the mucosal flap is 2 to 3 mm.

[0018] In one embodiment of the present invention, the support positioning member has a height of 4 to 4.5 mm, a thickness of 0.8 to 1.2 mm, and a length of 10 to 12 mm;

[0019] Preferably, the support positioning member has a height of 4.2-4.3 mm, a thickness of 0.9-1.0 mm, and a length of 10.5-11.5 mm.

[0020] In one embodiment of the present invention, the support positioning member is parallel to the central axis of the protrusion along the length direction; and the angle between the support positioning member and the mucosal flap hook is 60-120°.

[0021] In one embodiment of the present invention, the included angle between the mucosal flap hook and the mouth corner hook is 180°; the side of the mucosal flap hook away from the mouth corner hook is rounded.

[0022] In one embodiment of the present invention, the handle portion includes an integrated first grip portion, a second grip portion and a third grip portion, the first grip portion, the second grip portion and the third grip portion are connected in sequence, and a side of the first grip portion away from the second grip portion is connected to the corner hook portion;

[0023] Among them, the angle between the first gripping portion and the corner hook portion is 130~160° (preferably, the angle between the first gripping portion and the corner hook portion is 135~140°), the second gripping portion and the corner hook portion extend in opposite directions, and the third gripping portion and the first gripping portion extend in opposite directions.

[0024] In one embodiment of the present invention, the included angle between the first holding portion and the second holding portion is 135 to 165° (preferably, the included angle between the first holding portion and the second holding portion is 140 to 145°);

[0025] The included angle between the second holding portion and the third holding portion is 120 to 170° (preferably, the included angle between the second holding portion and the third holding portion is 130 to 140°).

[0026] In one embodiment of the present invention, the inner sides of the joints between the oral angle hook portion and the first holding portion, between the first holding portion and the second holding portion, and between the second holding portion and the third holding portion are all transitioned with rounded corners.

[0027] In one embodiment of the present invention, anti-slip lines are provided on the surface of the first holding portion (for increasing the contact friction between the hand and the retractor, and improving the stability when the medical staff holds the retractor).

[0028] In one embodiment of the present invention, the anti-slip lines are lines perpendicular to the length direction of the retractor.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] In the present invention, the mucosal flap hook portion and the protrusion are used to retract the mucosal flap lifted during the lateral window opening of the maxillary sinus; in the implant surgery, it is necessary to separate the mucosa and the underlying periosteum and other soft tissues to facilitate the doctor to view the underlying bone structure, accurately drill holes in the bone, and then place the bone graft material in the lateral window opening area of the maxillary sinus; further, it can help to stabilize the soft tissues, increase the surgical field of view, and at the same time protect the surrounding tissues from damage; the first scale line on the support positioning member is used to measure the size of the lateral window opening bone window, and the second scale line is used to measure the height of the lateral window opening bone window, so as to accurately calculate the size of the bone window, avoid damaging important anatomical structures, and ensure the accuracy and reliability of the surgery; the oral angle hook portion is used to fix the oral angle of the patient, facilitate better retraction of the oral soft tissues, so that the surgical site is fully exposed, and facilitate the doctor to perform the implant implantation operation; the handle portion facilitates the doctor to accurately control the direction and force of the oral angle hook portion and the mucosal flap hook portion, providing operational convenience; the saliva suction tube is used to remove the accumulated saliva and / or blood in the patient's oral cavity, ensuring the cleanliness of the oral environment; on the one hand, it facilitates the doctor's operation and observation, and on the other hand, it can also improve the comfort of the patient during the surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic structural diagram of a multifunctional retractor assembly of the present invention;

[0032] Figure 2 Side view of a multifunctional retractor assembly of the present invention;

[0033] Figure 3 Bottom view of a multifunctional retractor assembly of the present invention;

[0034] Figure 4 Position relationship diagram of the support positioning member and the mucosal hook portion in a multifunctional retractor assembly of the present invention;

[0035] Figure 5 Structural schematic diagram of a multifunctional retractor assembly (including saliva suction tube) of the present invention;

[0036] Figure 6 Side view of a multifunctional retractor assembly (including saliva suction tube) of the present invention;

[0037] Figure 7 Bottom view of a multifunctional retractor assembly (including saliva suction tube) of the present invention;

[0038] Reference numerals in the figure: 1. mucosal flap hook portion; 2. corner hook portion; 3. first holding portion; 4. second holding portion; 5. third holding portion; 6. protrusion; 7. support positioning member; 71. first scale line; 72. second scale line; 8. anti-slip pattern; 9. saliva suction tube. Detailed implementation manners

[0039] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0041] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact of the first and second features, or may include the non-direct contact of the first and second features but through other features between them. Moreover, the first feature being "above", "above", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "below", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature is at a lower horizontal height than the second feature.

[0042] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of description and simplifying the operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0043] In the following embodiments, unless otherwise specified, the structures or components used are conventional structures or components in the art, and those capable of achieving the corresponding functions are sufficient.

[0044] Embodiment 1

[0045] This embodiment provides a multifunctional retractor assembly, as Figures 1-4 shown. The multifunctional retractor assembly includes two retractors with the same structure and symmetrical left and right. The retractor includes an integrated hook part and a handle part. The hook part includes an integrated mucosal flap hook part 1 and an oral angle hook part 2. The oral angle hook part 2 is connected to the handle part. A convex part for stabilizing the pulling position of the mucosal flap and not damaging the surrounding tissues is provided at the side end of the mucosal flap hook part 1 away from the oral angle hook part 2, and a support positioning part 7 for positioning, which is connected to the convex part, is also provided.

[0046] The convex part includes a number of continuously arranged protrusions 6. The connection position on the side of the adjacent protrusions 6 away from the mucosal flap hook part 1 has a fillet transition (for enhancing the anti-bending strength of the connection position), and the side of the protrusion 6 away from the mucosal flap hook part 1 is rounded. The support positioning part 7 is a protrusion 6 with a rectangular cross-section. The support positioning part 7 is provided with a first scale line 71 along its length direction and a second scale line 72 along its height direction.

[0047] There are 2 protrusions 6, the height of the protrusion 6 is 5.5 - 6.5 mm, the thickness is 0.8 - 1.2 mm, and the length is 4 - 7 mm (preferably, the height of the protrusion 6 is 5.2 - 6.2 mm, the thickness is 0.9 - 1.0 mm, and the length is 5 - 6 mm); the height from the position where adjacent protrusions 6 are connected to the upper surface of the mucosal flap hook 1 is 2 - 3 mm; the height of the support positioning member 7 is 4 - 4.5 mm, the thickness is 0.8 - 1.2 mm, and the length is 10 - 12 mm (preferably, the height of the support positioning member 7 is 4.2 - 4.3 mm, the thickness is 0.9 - 1.0 mm, and the length is 10.5 - 11.5 mm); the support positioning member 7 is parallel to the central axis of the protrusion 6 in the length direction; the included angle between the support positioning member 7 and the mucosal flap hook 1 is 60 - 120° (preferably, the included angle between the support positioning member 7 and the mucosal flap hook 1 is 90°, and the included angle between the mucosal flap hook 1 and the oral angle hook 2 is 180°); the side of the mucosal flap hook 1 away from the oral angle hook 2 is rounded (for improving the comfort of the patient during the operation).

[0048] The handle part includes an integrated first grip part 3, a second grip part 4 and a third grip part 5, the first grip part 3, the second grip part 4 and the third grip part 5 are connected in sequence, and the side of the first grip part 3 away from the second grip part 4 is connected to the oral angle hook 2; wherein, the included angle α 1 between the first grip part 3 and the oral angle hook 2 is 130 - 160° (preferably, the included angle α 1 between the first grip part 3 and the oral angle hook 2 is 135 - 140°), the second grip part 4 is in the opposite direction to the extension direction of the oral angle hook 2, and the third grip part 5 is in the opposite direction to the extension direction of the first grip part 3; the included angle α 2 between the first grip part 3 and the second grip part 4 is 135 - 165° (preferably, the included angle α 2 between the first grip part 3 and the second grip part 4 is 140 - 145°); the included angle α 3 between the second grip part 4 and the third grip part 5 is 120 - 170° (preferably, the included angle α 3 between the second grip part 4 and the third grip part 5 is 130 - 140°); wherein, the settings of the first grip part 3, the second grip part 4 and the third grip part 5 can fit the hand curve.

[0049] The inner sides of the joints between the oral angle hook 2 and the first grip part 3, between the first grip part 3 and the second grip part 4, and between the second grip part 4 and the third grip part 5 are all in a fillet transition; the surface of the first grip part 3 is provided with anti-slip lines 8 (for increasing the contact friction between the hand and the retractor and improving the stability of the medical staff when holding the retractor).

[0050] The anti-slip pattern 8 is a pattern perpendicular to the length direction of the retractor hook.

[0051] Among them, the size of the retractor hook can be adjusted according to the actual situation (for example, the length of the retractor hook is 13 - 15 cm, and the width is 1.5 - 2.5 cm).

[0052] In this embodiment, the mucosal flap hook part 1 and the convex part are used to pull the mucosal flap turned up during the lateral window opening of the maxillary sinus; during the implant surgery, it is necessary to separate the mucosa and the underlying periosteum and other soft tissues to facilitate the doctor to view the underlying bone structure, accurately drill holes in the bone, and then place the bone graft material in the lateral window opening area of the maxillary sinus; further, it can help stabilize the soft tissues, increase the surgical field of view, and at the same time protect the surrounding tissues from damage; the first scale line 71 on the support and positioning part is used to measure the size of the lateral window opening bone window, and the second scale line 72 is used to measure the height of the lateral window opening bone window, so as to accurately calculate the size of the bone window, avoid damaging important anatomical structures, and ensure the accuracy and reliability of the surgery; the oral angle hook part 2 is used to fix the oral angle of the patient, facilitate better pulling of the oral soft tissues, so that the surgical site is fully exposed, and facilitate the doctor to perform the implant operation; the handle part facilitates the doctor to accurately control the directions and forces of the oral angle hook part 2 and the mucosal flap hook part 1, providing convenience for the operation.

[0053] Embodiment 2

[0054] This embodiment provides a multifunctional retractor assembly. Compared with Embodiment 1, except for adding a saliva suction tube 9, the others are the same as Embodiment 1.

[0055] Specifically, a saliva suction tube 9 penetrating in the length direction is arranged on the back of the retractor hook (the support and positioning part 7 is arranged on the front of the retractor hook), and the saliva suction tube 9 is far from the support and positioning part 7; among them, the end of the saliva suction tube 9 close to the mucosal flap hook part 1 is used as the inlet of the saliva suction tube 9, and the end far from the mucosal flap hook part 1 is used as the outlet of the saliva suction tube 9; during use, the end of the saliva suction tube 9 far from the mucosal flap hook part 1 is connected to an external negative pressure suction assembly through an external connecting piece; a switch for connecting or closing the saliva suction tube 9 and the external negative pressure assembly is arranged on the external connecting piece (as Figures 4-7 shown).

[0056] In this embodiment, the saliva suction tube 9 is convenient for removing the accumulated saliva and / or blood in the patient's oral cavity, ensuring the cleanliness of the oral environment; on the one hand, it is convenient for the doctor to operate and observe, and on the other hand, it can also improve the comfort of the patient during the operation.

[0057] The above description of the embodiments is provided to enable those of ordinary skill in the art to understand and use the invention. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative efforts. Therefore, the present invention is not limited to the above embodiments, and all improvements and modifications made by those skilled in the art without departing from the scope of the present invention according to the interpretation of the present invention should be within the protection scope of the present invention.

Claims

1. A multifunctional hook assembly, characterized in that: The multifunctional hook assembly comprises two hooks with the same structure and bilateral symmetry; The retractor comprises an integrated hook portion and a handle portion, wherein the hook portion comprises an integrated mucosal flap hook portion (1) and a mouth corner hook portion (2), and the mouth corner hook portion (2) is connected to the handle portion; The side end of the mucosal flap hook portion (1) away from the mouth corner hook portion (2) is provided with a protrusion for stabilizing the pulling position of the mucosal flap without damaging the surrounding tissue, and a supporting positioning member (7) connected to the protrusion for positioning; The protrusion member comprises a plurality of protrusions (6) arranged in series, the connection positions of adjacent protrusions (6) away from the side of the mucosal flap hook portion (1) are chamfered, and the side of the protrusion (6) away from the mucosal flap hook portion (1) is rounded; The support positioning member (7) is a protrusion (6) with a rectangular cross section, and the support positioning member (7) is provided with a first scale line (71) along its length direction and a second scale line (72) along its height direction; The back of the retractor hook is provided with a saliva suction tube (9) running through the length direction thereof, and the saliva suction tube (9) is far away from the supporting positioning member (7); When in use, the end of the saliva suction tube (9) away from the mucosal flap hook (1) is connected to an external negative pressure suction component via a connecting piece; The protrusions (6) are provided with two, the height of the protrusions (6) is 5.5-6.5 mm, the thickness is 0.8-1.2 mm, and the length is 4-7 mm; The support positioning member (7) has a height of 4 to 4.5 mm, a thickness of 0.8 to 1.2 mm, and a length of 10 to 12 mm; The support positioning member (7) is parallel to the central axis of the protrusion (6) along the length direction; the angle between the support positioning member (7) and the mucosal flap hook portion (1) is 60 to 120 degrees.

2. A multifunctional hook assembly according to claim 1, characterized in that: The back of the retractor hook is provided with a saliva suction tube (9) running through the length direction thereof, and the saliva suction tube (9) is far away from the supporting positioning member (7); When in use, the end of the saliva suction tube (9) away from the mucosal flap hook (1) is connected to an external negative pressure suction component via a connecting piece.

3. A multifunctional hook assembly according to claim 1, characterized in that: The included angle between the mucosal flap hook portion (1) and the corner of mouth hook portion (2) is 180°; the side of the mucosal flap hook portion (1) away from the corner of mouth hook portion (2) is rounded.

4. A multifunctional hook assembly according to claim 1, characterized in that: The handle portion comprises an integrated first grip portion (3), a second grip portion (4) and a third grip portion (5), the first grip portion (3), the second grip portion (4) and the third grip portion (5) being connected in sequence, and a side of the first grip portion (3) away from the second grip portion (4) is connected to the mouth corner hook portion (2); The included angle between the first gripping portion (3) and the corner hook portion (2) is 130-160°, the second gripping portion (4) and the corner hook portion (2) extend in opposite directions, and the third gripping portion (5) and the first gripping portion (3) extend in opposite directions.

5. A multifunctional hook assembly according to claim 4, characterized in that: The included angle between the first gripping portion (3) and the second gripping portion (4) is 135-165°; The included angle between the second gripping portion (4) and the third gripping portion (5) is 120-170°.

6. A multifunctional hook assembly according to claim 4, characterized in that: The inner side of the connection between the corner hook portion (2) and the first grip portion (3), the inner side of the connection between the first grip portion (3) and the second grip portion (4), and the inner side of the connection between the second grip portion (4) and the third grip portion (5) are all rounded transitions.

7. A multifunctional hook assembly according to claim 4, characterized in that: The surface of the first gripping portion (3) is provided with anti-slip patterns (8).

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