Auxiliary protection structure of external distractor

Abstract

A protective main body of the auxiliary protective structure comprises a transparent hard cover body, a corrugated pipe body and a base which are sequentially connected from top to bottom, the transparent hard cover body is a transparent hard plastic part, and a main body inner cavity is formed in the protective main body; an adhesive block is arranged on the lower surface of the base; a top cover is arranged at the upper end of the transparent hard cover, a top operation through hole is formed in the middle of the top cover, and a rotating direction mark and a rotating angle mark are arranged on the upper surface of the top cover and beside the top operation through hole. By means of the structural design, the external distractor has the advantages of being novel in structural design and good in protection effect, the extension end of the rotating handle of the external distractor and a puncture opening can be effectively covered and protected, the rotating operation of the rotating handle of the external distractor can be effectively indicated, and therefore the convenience of the rotating operation of the rotating handle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary tools, in particular to an external distraction device auxiliary protection structure. Background Art

[0002] Distraction osteogenesis (DO) in oral and maxillofacial surgery is currently mainly used to treat micrognathia caused by congenital developmental abnormalities of the mandible. Distraction osteogenesis uses a specific device (i.e., a mandibular distractor) to apply a continuous and slow traction force to the severed bone segment. This traction force promotes the synchronous regeneration of bone tissue and surrounding soft tissue, thereby lengthening or widening the bone.

[0003] One type of mandibular distractor structure consists of a rotating handle, a universal joint, fixed wings, movable wings, a guide, and a traction screw. The rotating handle is connected to one end of the traction screw via a universal joint. The traction screw is rotatably mounted within the guide, while the fixed wings are securely mounted to the guide and the movable wings are slidably mounted to the guide. The internal threaded hole of the movable wing is threadedly connected to the traction screw. During use, the fixed and movable wings are fixed to the mandible, and then an osteotomy is performed. After the osteotomy, the rotating handle rotates the traction screw, causing the movable wing to move away from the fixed wing, completing the mandibular distraction procedure.

[0004] It should be pointed out that for the external distractor, one end of its handle extends out of the patient's body through the patient's puncture port (incision). In the process of gradually distracting the mandible, medical staff or the patient's family members need to rotate the handle every day to gradually expand the osteotomy position of the mandible, so as to achieve the gradual and synchronous regeneration of the bone tissue and surrounding soft tissue at the osteotomy position.

[0005] It should be further pointed out that in the actual process of mandibular distraction surgery using an external distractor, the following problems are often encountered, specifically:

[0006] Problem 1: Due to the lack of a protective structure to cover the extended end of the external distractor's handle, the handle and the patient's puncture port are exposed. When bumped, the extended end of the handle is subject to a large external force, which can easily cause the external distractor to loosen. In addition, due to the discomfort caused by installing the external distractor, especially for pediatric patients, it is easy for them to touch the handle and puncture port with their hands, which can easily cause infection at the incision site.

[0007] Problem 2: During the daily rotation of the handle to gradually distract the mandible, medical staff or the patient's family members are required to rotate the handle a specified number of times in a specified direction. Over-rotation of the handle can lead to excessive distraction and pain for the patient. Due to the lack of an effective indicator structure, actual rotation of the handle is somewhat inconvenient. Utility Model Content

[0008] The purpose of the present utility model is to provide an auxiliary protection structure for an external tensioner in response to the deficiencies of the prior art. The auxiliary protection structure for the external tensioner has a novel design and good protection effect, and can effectively cover and protect the extended end of the handle and the puncture port of the external tensioner. It can also effectively indicate the rotation operation of the handle of the external tensioner to improve the convenience of the rotation operation of the handle.

[0009] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions.

[0010] An external tensioner auxiliary protection structure includes a protection body, characterized in that the protection body includes a transparent hard cover, a bellows body, and a base connected in sequence from top to bottom, the transparent hard cover being a transparent hard plastic part, and the interior of the protection body is formed with a main body cavity that opens downward and is surrounded by the transparent hard cover, the bellows body, and the base;

[0011] The lower surface of the base is provided with an adhesive block which is adhered to the skin surface around the puncture port of the patient during use;

[0012] A top cover is provided at the upper end of the transparent hard cover body, and a top operating through hole is provided in the middle position of the top cover, which vertically penetrates and communicates with the inner cavity of the main body. A rotation direction mark and a rotation angle mark are provided on the upper surface of the top cover beside the top operating through hole.

[0013] Among them, the transparent hard cover body includes a cover body tube part in the shape of a circular tube, the lower end of the cover body tube part is connected to the upper end of the corrugated tube body, and the top cover is rotatably installed on the upper end of the cover body tube part. The cover body tube part and the top cover are transparent hard plastic parts respectively.

[0014] Wherein, the upper end portion of the cover tube portion is provided with a sleeve portion, and the outer circumferential surface of the sleeve portion is provided with a limit slot;

[0015] A ring-shaped limiting convex portion is provided at the lower end of the inner circumferential surface of the top cover, the lower end of the top cover is sleeved on the periphery of the sleeve portion, and the limiting convex portion of the top cover is embedded in the limiting slot of the sleeve portion.

[0016] Wherein, the sleeve connection portion of the cover tube portion is provided with a notch which penetrates radially and opens upward.

[0017] The base is in the shape of a ring and includes a base, an annular connecting portion arranged on the upper surface of the base and protruding upward, the lower end of the corrugated tube body is connected to the annular connecting portion, and the adhesive block is installed on the lower surface of the base.

[0018] Wherein, the lower end portion of the transparent hard cover body is bonded or welded to the upper end portion of the corrugated tube body, and the lower end portion of the corrugated tube body is bonded or welded to the base.

[0019] Compared with the prior art, the present invention has the following beneficial effects, specifically:

[0020] 1. When in use, the protective body covers and hides the extended end of the handle of the external distractor and the puncture site of the patient, which can effectively prevent the extended end of the handle and the patient's puncture site from being exposed, thereby preventing the patient from touching the extended end of the handle and the puncture site with their hands and causing infection;

[0021] 2. During use, the bellows can be adaptively adjusted for telescopic and angular deflection, so that the height and angle of the protective body are respectively adapted to the extension length and extension angle of the external tensioner's handle, thereby improving the adaptability of the external tensioner auxiliary protection structure of the utility model;

[0022] 3. The transparent hard cover is made of transparent hard plastic. When there is a collision, the transparent hard cover can play a role of anti-collision protection, thereby preventing the extended end of the handle from being directly impacted by external forces and causing the external tensioner to become loose;

[0023] 4. The rotation direction mark and rotation angle mark on the upper surface of the top cover can indicate the rotation operation of the handle to improve the convenience of the handle rotation operation;

[0024] 5. Therefore, the auxiliary protection structure of the external tensioner of the present invention has the advantages of novel structural design and good protection effect, and can effectively cover and protect the extended end of the handle of the external tensioner and the puncture port, and can also effectively indicate the rotation operation of the handle of the external tensioner to improve the convenience of the rotation operation of the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings. However, the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0026] Figure 1 It is a structural diagram of the present utility model.

[0027] Figure 2 for Figure 1 Schematic diagram of the decomposition.

[0028] Figure 3This is a structural diagram of the utility model from another perspective.

[0029] Figure 4 This is a structural diagram of the utility model from another perspective.

[0030] Figure 5 It is a partial cross-sectional schematic diagram of the present utility model.

[0031] exist Figures 1 to 5 These include:

[0032] 1-protective body; 2-transparent hard cover; 3-corrugated tube; 4-base; 41-base; 42-annular connecting part; 5-main body cavity; 6-adhesive block; 7-top cover; 8-top operation through hole; 9-rotation direction mark; 10-rotation angle mark; 11-cover tube; 12-sleeve connection part; 13-limiting slot; 4-limiting protrusion; 15-notch. DETAILED DESCRIPTION

[0033] The present invention will be described below in conjunction with specific implementation methods.

[0034] Example 1, as Figures 1 to 4 As shown, an external tensioner auxiliary protection structure includes a protection body 1, which includes a transparent hard cover body 2, a bellows body 3, and a base 4 connected in sequence from top to bottom. The transparent hard cover body 2 is a transparent hard plastic part, and the interior of the protection body 1 is formed with a main body inner cavity 5 which is open downward and is surrounded by the transparent hard cover body 2, the bellows body 3, and the base 4.

[0035] It should be noted that the lower end of the transparent rigid cover 2 is bonded or welded to the upper end of the bellows 3, and the lower end of the bellows 3 is bonded or welded to the base 4. Of course, the above bonding or welding methods do not constitute a limitation to the first embodiment. That is, the lower end of the transparent rigid cover 2 and the upper end of the bellows 3 in the first embodiment can also be connected by screwing or other methods, and the lower end of the bellows 3 and the base 4 can also be connected by screwing or other methods.

[0036] Among them, such as Figures 1 to 3 As shown, the lower surface of the base 4 is provided with an adhesive block 6 which is adhered to the skin surface around the puncture port of the patient during use.

[0037] Further, such as Figures 1 to 5 As shown, a top cover 7 is provided at the upper end of the transparent hard cover body 2, and a top operating through hole 8 is provided in the middle position of the top cover 7, which vertically penetrates and communicates with the main body inner cavity 5, and a rotation direction mark 9 and a rotation angle mark 10 are provided on the upper surface of the top cover 7 beside the top operating through hole 8.

[0038] During use of the auxiliary protective structure of the external distractor of the first embodiment, the lower end opening of the main body inner cavity 5 of the protective body 1 is first aligned with the extended end of the rotating handle of the external distractor, and the extended end of the rotating handle is extended into the main body inner cavity 5, and then the adhesive block 6 on the lower surface of the base 4 is glued and fixed to the skin surface around the patient's puncture port to achieve the installation and fixation of the protective body 1. At this time, the protective body 1 covers and covers the extended end of the rotating handle of the external distractor and the patient's puncture port position, thereby effectively preventing the extended end of the rotating handle and the patient's puncture port from being exposed, thereby preventing the patient from touching the extended end of the rotating handle and the puncture port with his hands and causing infection.

[0039] It should be emphasized that, for the bellows body 3 of the first embodiment, it is connected between the transparent hard cover body 2 and the base 4, and the bellows body 3 can be adaptively adjusted in telescopic manner and in angle swing, so that the height and angle of the protective body 1 are respectively adapted to the extension length and extension angle of the turning handle of the external tensioner, thereby improving the adaptability of the auxiliary protection structure of the external tensioner of the first embodiment.

[0040] In addition, the transparent hard cover body 2 of the first embodiment is a transparent hard plastic part. When a collision occurs, the transparent hard cover body 2 can play an anti-collision protection role, thereby preventing the extended end of the handle from being directly impacted by external forces and causing the external tensioner to loosen.

[0041] It should be further emphasized that when medical personnel or the patient's family members use the operating lever to rotate the handle of the external distractor, they align and insert the operating lever into the top operating hole 8 of the top cover 7. The transparent hard cover 2, which adopts a transparent component structure, can facilitate the operator to align the operating lever with the handle of the external distractor. When the operating lever is rotated and the operating lever drives the handle of the external distractor to rotate, the operator can accurately know the rotation direction of the operating lever through the rotation direction mark 9 on the upper surface of the top cover 7 and accurately determine the rotation angle of the operating lever through the rotation angle mark 10 on the upper surface of the top cover 7. In particular, when determining the rotation angle of the operating lever, the operator can draw a mark on the operating lever and determine the rotation angle of the operating lever by matching the mark on the operating lever with the rotation angle mark 10 on the top cover 7.

[0042] Based on the above, it can be seen that through the above structural design, the auxiliary protection structure of the external tensioner in the first embodiment has the advantages of novel structural design and good protection effect, and can effectively cover and protect the extended end of the turning handle and the puncture port of the external tensioner, and can also effectively indicate the rotation operation of the turning handle of the external tensioner to improve the convenience of the turning handle rotation operation.

[0043] Example 2, as Figure 1 、 Figure 2 、 Figure 3 as well as Figure 5 As shown, the difference between this embodiment 2 and embodiment 1 is that the transparent hard cover body 2 includes a cover body tube portion 11 in the shape of a circular tube, the lower end portion of the cover body tube portion 11 is connected to the upper end portion of the corrugated tube body 3, and the top cover 7 is rotatably installed on the upper end portion of the cover body tube portion 11, and the cover body tube portion 11 and the top cover 7 are transparent hard plastic parts respectively.

[0044] Specifically, the upper end of the housing tube 11 is provided with a sleeve portion 12, and the outer circumferential surface of the sleeve portion 12 is provided with a limit slot 13; the lower end of the inner circumferential surface of the top cover 7 is provided with a circular ring-shaped limit protrusion 14. The lower end of the top cover 7 is sleeved around the outer periphery of the sleeve portion 12, and the limit protrusion 14 of the top cover 7 is embedded in the limit slot 13 of the sleeve portion 12. When the top cover 7 rotates relative to the housing tube 11, the limit protrusion 14 of the top cover 7 rotates within the limit slot 13 of the sleeve portion 12.

[0045] Since the top cover 7 of the second embodiment can be relatively rotatably installed on the upper end of the cover tube portion 11, when the rotation angle of the operating lever is judged with the help of the rotation angle mark 10 on the upper surface of the top cover 7, when the operator extends the operating lever into the main body inner cavity 5 through the top operating through hole 8 and docks it with the rotating handle of the external tensioner, the operator can rotate the top cover 7 and align the 0 point position of the rotation angle mark 10 with the mark on the operating lever. When rotating the operating lever, the operator can accurately know the rotation angle of the operating lever with the help of the rotation angle mark 10, thereby making the operating lever rotation operation more convenient.

[0046] Example 3, as Figure 2 As shown, the difference between the third embodiment and the second embodiment is that the sleeve portion 12 of the cover tube portion 11 is provided with a notch 15 which penetrates radially and opens upward.

[0047] Since the sleeve portion 12 is provided with a notch 15, the top cover 7 can be removed from the sleeve portion 12; during the process of removing the top cover 7, the top cover 7 moves upward relative to the cover tube portion 11, and the sleeve portion 12 adaptively contracts inwardly at this time, so that the limiting protrusion 14 of the top cover 7 exits the limiting slot 13 of the sleeve portion 12.

[0048] During use of the external distractor auxiliary protection structure of the third embodiment, when it is necessary to clean the patient's puncture site or the extended end of the external distractor's rotating handle, the operator removes the top cover 7 from the upper end of the cover tube 11; after cleaning is completed, the top cover 7 is re-installed on the sleeve portion 12 of the cover tube 11. Therefore, the above-mentioned detachable top cover 7 structure can effectively meet the cleaning requirements of the puncture site and rotating handle.

[0049] Example 4, as Figures 1 to 4As shown, the difference between this fourth embodiment and the first embodiment is that the base 4 is in a circular ring shape, and the base 4 includes a base 41, an annular connecting portion 42 provided on the upper surface of the base 41 and protruding upward, the lower end of the bellows body 3 is connected to the annular connecting portion 42, and the adhesive block 6 is installed on the lower surface of the base 41.

[0050] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. An external tensioner auxiliary protection structure, comprising a protection body (1), characterized in that: The protective body (1) comprises a transparent hard cover body (2), a bellows body (3), and a base (4) connected in sequence from top to bottom. The transparent hard cover body (2) is a transparent hard plastic part. The interior of the protective body (1) is formed with a main body inner cavity (5) which is open downward and is surrounded by the transparent hard cover body (2), the bellows body (3), and the base (4). The lower surface of the base (4) is provided with an adhesive block (6) which is adhered to the skin surface around the puncture port of the patient during use; A top cover (7) is provided at the upper end of the transparent hard cover body (2), a top operating through hole (8) vertically penetrating the middle of the top cover (7) and communicating with the inner cavity of the main body (5) is provided, and a rotation direction mark (9) and a rotation angle mark (10) are provided on the upper surface of the top cover (7) beside the top operating through hole (8).

2. The external tensioner auxiliary protection structure according to claim 1, characterized in that: The transparent hard cover (2) includes a cover tube portion (11) in the shape of a circular tube. The lower end of the cover tube portion (11) is connected to the upper end of the corrugated tube (3). The top cover (7) is rotatably mounted on the upper end of the cover tube portion (11). The cover tube portion (11) and the top cover (7) are both transparent hard plastic parts.

3. The external tensioner auxiliary protection structure according to claim 2, characterized in that: The upper end portion of the cover tube portion (11) is provided with a sleeve portion (12), and the outer circumferential surface of the sleeve portion (12) is provided with a limit slot (13); A ring-shaped limiting protrusion (14) is provided at the lower end of the inner circumferential surface of the top cover (7), the lower end of the top cover (7) is sleeved on the periphery of the sleeve portion (12), and the limiting protrusion (14) of the top cover (7) is embedded in the limiting slot (13) of the sleeve portion (12).

4. The external tensioner auxiliary protection structure according to claim 3, characterized in that: The sleeve connection portion (12) of the cover tube portion (11) is provided with a notch (15) that penetrates radially and opens upward.

5. The external tensioner auxiliary protection structure according to claim 1, characterized in that: The base (4) is in the shape of a ring and comprises a base (41), an annular connecting portion (42) disposed on the upper surface of the base (41) and protruding upward, the lower end of the bellows body (3) is connected to the annular connecting portion (42), and the adhesive block (6) is mounted on the lower surface of the base (41).

6. The external tensioner auxiliary protection structure according to claim 1, characterized in that: The lower end of the transparent hard cover (2) is bonded or welded to the upper end of the corrugated tube (3), and the lower end of the corrugated tube (3) is bonded or welded to the base (4).

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