Fixable opening support
By introducing adjustment and locking components into the opening support, the problems of inaccurate spacing and loosening of the opening frame were solved, achieving stable fixation of the opening frame and ensuring the smooth progress of the surgery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU PAMA MEDICAL TECH CO LTD
- Filing Date
- 2025-03-04
- Publication Date
- 2026-05-12
AI Technical Summary
Existing mouth opening supports are not precise enough in adjusting and fixing the patient's oral opening, and are prone to loosening, which affects the smooth progress of the operation.
It adopts a pair of support frames connected by a hinge, and is equipped with an adjustment component and a locking component. The adjustment bar fixes the distance of the support frames through the locking groove and the locking component to ensure the stability of the support frame in the open state.
It enables precise adjustment and stable fixation of the strut distance, ensuring the smooth progress of the surgical procedure.
Smart Images

Figure CN224220250U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of surgical auxiliary instruments technology, and mainly to a fixable opening support. Background Technology
[0002] During surgical procedures, the incision time for patients is relatively long. To ensure the smooth progress of the operation, special instruments are needed to assist in keeping the patient's mouth open. Mouth opening supports are mainly used when a patient's mouth is unable to open on its own due to disease, trauma, or impaired consciousness. Through their unique shape and function, they intervene and open the surgical opening to ensure the smooth progress of the operation or treatment.
[0003] For example, Chinese patent application number CN200720020570.2 discloses a palatal cleft opening support device. The palatal cleft opening support device consists of a support frame and a tongue depressor mechanism. The support frame is composed of two bow-shaped supports forming a clamp shape. The two supports are connected at one end by a shaft and open in opposite directions in the vertical direction. The ends are bent backward in the horizontal direction to form a clamp handle. The other ends are connected by a shaft. The middle of the upper and lower supports is provided with an inwardly bent hook. The tongue depressor mechanism is located in the middle of the lower support.
[0004] The aforementioned mouth opening support device has shortcomings in actual use: It is inserted into the oral cavity via a tongue depressor, and then the two clamps are pressed together to open the upper and lower supports, thereby expanding the oral cavity. Simultaneously, a fixing clip is used to engage with the groove for fixation. The distance between the upper and lower supports is adjusted by the engagement position of the fixing clip and the groove, resulting in insufficient precision in the patient's mouth opening arc. Furthermore, there is play between the groove and the fixing clip, causing the fixing clip to loosen when the mouth is open, leading to inconsistent and unstable opening amplitude of the upper and lower supports, thus affecting the smooth progress of the mouth opening surgery. Utility Model Content
[0005] In view of the shortcomings of the prior art, this utility model provides a fixed opening support. The technical problem to be solved is that the distance between a pair of support frames is adjusted by the adjusting strip of the adjusting component, and the end of the adjusting strip is locked by the locking component, so that the distance of the opening part of the support frame is continuously fixed.
[0006] The technical problem to be solved by this utility model can be achieved by the following technical solution:
[0007] A fixable opening support includes a pair of spreading frames and a hinge. The pair of spreading frames are arranged parallel to each other on both sides of the hinge, and the middle of the pair of spreading frames is hinged together by the hinge. The opening support further includes an adjustment component and a locking component. The adjustment component includes an adjustment bar, several locking slots, and a sliding groove. Each pair of spreading frames includes a spreading portion and a gripping portion. The sliding groove is provided inside the gripping portion of the spreading frame, and the adjustment bar passes laterally through the sliding groove of the spreading frame. The locking component is disposed at the top of the gripping portion of the spreading frame and passes vertically through one of the locking slots of the adjustment bar, thereby locking the positions of both ends of the adjustment bar. The distance between the pair of gripping portions of the spreading frame is fixed.
[0008] In a preferred embodiment of the present invention, the locking component includes a fixing block, a telescopic groove, and a telescopic block. The fixing block is longitudinally fixedly connected to one end of the adjusting bar and a gripping part of the support frame. The telescopic groove is longitudinally disposed through the middle of the outer end of the other gripping part of the support frame. The telescopic block is inserted longitudinally into one of the locking grooves of the adjusting bar along the telescopic groove, thereby fixing the distance between the pair of gripping parts of the support frame.
[0009] In a preferred embodiment of the present invention, the locking assembly further includes a spring and a suction member. The telescopic block is a telescopic magnet. The two ends of the spring are respectively fixedly connected to the top wall of the telescopic groove and the top of the telescopic block. The suction member is disposed on the top surface of the gripping part of the expansion member. The suction member is close to the telescopic groove and generates a suction force on the telescopic block. The spring and the telescopic block are compressed together.
[0010] In a preferred embodiment of this utility model, the attracting component includes a rotating shaft, a rotating block, and an attracting magnet. The rotating shaft is rotatably mounted longitudinally on the gripping part of the support frame. The rotating block is horizontally mounted on the outer periphery of the rotating shaft. The attracting magnet is mounted on the outer end of the rotating block. The distance between the rotating shaft and the attracting magnet is equal to the distance between the rotating shaft and the telescopic groove.
[0011] In a preferred embodiment of this utility model, the locking groove and the telescopic block have a circular, waist-shaped, or elliptical cross-sectional shape.
[0012] In a preferred embodiment of the present invention, the opening support further includes a recovery component, the recovery component including a pair of slots and a torsion spring, the torsion spring being laterally disposed between the hinge and the rack, the cross-sectional shape of the pair of slots being T-shaped, and the two ends of the torsion spring being embedded and engaged in the pair of slots.
[0013] In a preferred embodiment of the present invention, the open support further includes an anti-detachment component, which includes a pair of anti-detachment grooves, a pair of anti-detachment blocks, and an anti-detachment shaft. The outer ends of the pair of anti-detachment blocks are embedded and snapped into the pair of anti-detachment grooves. The length of the snapping end of the pair of anti-detachment blocks is greater than the length of the groove opening of the pair of anti-detachment grooves. The interiors of the pair of anti-detachment blocks are hinged together by the anti-detachment shaft.
[0014] In a preferred embodiment of the present invention, the support frame is Z-shaped, and a gripping ring is provided at the end of the gripping part of the support frame.
[0015] In a preferred embodiment of the present invention, the hinge includes a hinge seat, a hinge block, and a hinge shaft. The outer end of the hinge seat is fixed to the middle of one of the support frames, and the outer end of the hinge block is fixed to the middle of the other support frame. The inner ends of the hinge seat and the hinge block are hinged together by the hinge shaft.
[0016] Compared with the prior art, the advantages of this utility model are as follows: a fixed opening support device, wherein a pair of opening frames are hinged in the middle, the hinge serving as the fulcrum of a seesaw, and the two ends of the pair of opening frames have opposite opening and closing parts; the distance between the pair of opening frames is adjusted by the adjusting strip of the adjusting component, and the end of the adjusting strip is locked by the locking component, which can loosen external force and continuously fix the distance of the opening part of the opening frame, ensuring the smooth operation of the surgery. Attached Figure Description
[0017] Figure 1 This is a structural schematic diagram of a fixable opening support according to the present invention.
[0018] Figure 2 This is an exploded structural diagram of a fixable opening support according to the present invention.
[0019] Figure 3 This is a structural schematic diagram of the locking component of this utility model.
[0020] Figure label:
[0021] Spreading frame: 11 Spreading part, 12 Holding part, 13 Holding ring. Hinge components: 14 Hinge seat, 15 Hinge block, 16 Hinge shaft.
[0022] Adjustment components: 21 Adjustment bar, 22 Locking groove, 23 Slide groove; 24 Fixing block. Locking components: 32 Telescopic magnet; 33 Spring; 34 Rotating shaft, 35 Rotating block, 36 Activating magnet.
[0023] Recovery components: 41 slot, 42 torsion spring. Anti-detachment components: 51 anti-detachment groove, 52 anti-detachment block, 53 anti-detachment shaft. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.
[0025] See Figures 1 to 3 The figure shows a fixed opening support, including a pair of opening frames and a hinge. The pair of opening frames are arranged parallel to each other on both sides of the hinge, and the middle of the pair of opening frames is hinged together by the hinge. The opening support also includes an adjustment component and a locking component. The adjustment component includes an adjustment bar 21, several locking slots 22, and a sliding groove 23. The pair of opening frames each include an opening part 11 and a gripping part 12. The gripping part 12 of the opening frame is provided with a sliding groove 23, and the adjustment bar 21 passes laterally through the sliding groove 23 of the opening frame. The locking component is located at the top of the gripping part 12 of the opening frame. The locking component passes vertically through one of the locking slots 22 of the adjustment bar 21, thereby locking the positions of both ends of the adjustment bar 21. The distance between the pair of gripping parts 12 of the opening frame is fixed.
[0026] The present invention has a hinge in the middle of a pair of expansion frames for hinge connection. The hinge serves as the fulcrum of a seesaw. The two ends of the pair of expansion frames, the holding parts 12 and the expansion parts 11, open and close in opposite directions. The distance between the pair of expansion frames is adjusted by the adjusting strip 21 of the adjusting component. The end of the adjusting strip 21 is locked by the locking component, which can loosen the external force and continuously fix the distance of the expansion parts 11 of the expansion frames, ensuring the smooth operation of the surgery.
[0027] In this preferred embodiment, combined with Figure 3 The locking assembly includes a fixing block 24, a telescopic groove, and a telescopic block. The fixing block 24 is longitudinally fixed to one end of the adjusting bar 21 and a gripping part 12 of the support frame. The telescopic groove is longitudinally disposed in the middle of the outer end of the other gripping part 12 of the support frame. The telescopic block is inserted longitudinally into one of the locking grooves 22 of the adjusting bar 21 along the telescopic groove, thereby fixing the distance between the pair of gripping parts 12 of the support frame.
[0028] In this preferred embodiment, the locking assembly further includes a spring 33 and a suction member. The telescopic block is a telescopic magnet 32. The two ends of the spring 33 are respectively fixedly connected to the top wall of the telescopic groove and the top of the telescopic block. The suction member is disposed on the top surface of the gripping part 12 of the expansion member. The suction member is close to the telescopic groove and generates a suction force on the telescopic block. The spring 33 and the telescopic block are compressed together.
[0029] Furthermore, the attracting component includes a rotating shaft 34, a rotating block 35, and an attracting magnet 36. The rotating shaft 34 is rotatably mounted longitudinally on the gripping part 12 of the support frame. The rotating block 35 is horizontally mounted on the outer periphery of the rotating shaft 34, and the attracting magnet 36 is mounted on the outer end of the rotating block 35. The distance between the rotating shaft 34 and the attracting magnet 36 is equal to the distance between the rotating shaft 34 and the telescopic groove.
[0030] Furthermore, the locking groove 22 and the cross-sectional shape of the telescopic block are circular, waist-shaped, or elliptical.
[0031] The above-mentioned adjustment component is equipped with several waist-shaped locking slots 22. The telescopic slot of the locking component can be retracted and equipped with a telescopic block. The telescopic block extends into the locking slot 22 to lock the position of the adjustment bar 21. The telescopic block retracts and releases the adjustment bar 21. The locking position is accurate to a specific waist-shaped locking slot 22, and the locking effect is more stable. The telescopic magnet 32, spring 33 and attraction magnet 36 are connected in sequence, which makes it easy for the telescopic magnet 32 and attraction magnet 36 to attract and lock each other, or to be released by rotating the rotating block 35, which is convenient to operate.
[0032] In another embodiment, the locking component includes a T-slot and a T-post. The T-slot is longitudinally disposed through the middle of the outer end of the grip portion 12 of the support frame. The head of the T-post is intersected at the top of the T-slot and located on the top surface of the grip portion 12 of the support frame. The lower part of the T-post is disposed inside the T-slot. The height of the head of the T-post is greater than the height of the head of the T-slot. Specifically, the bottom shape of the T-slot and the T-post is cylindrical.
[0033] The aforementioned T-shaped post is aligned with the T-shaped groove and inserted longitudinally into one of the locking grooves 22 of the adjusting bar 21, thereby fixing the distance between the pair of grips 12 of the support frame; the locking position is accurate to a certain T-shaped groove, and the locking effect is more stable.
[0034] In this preferred embodiment, the opening support further includes a recovery component, which includes a pair of grooves 41 and a torsion spring 42. The torsion spring 42 is laterally disposed between the hinge and the rack. The cross-sectional shape of the pair of grooves 41 is T-shaped, and the two ends of the torsion spring 42 are embedded and engaged in the pair of grooves 41.
[0035] After the torsion spring 42 of the aforementioned recovery component is elastically restored, the pair of support frames are parallel, that is, the length of the torsion spring 42 is approximately equal to the length of the hinge; specifically, the two ends of the torsion spring 42 are provided with bosses, the outer diameter of the bosses is larger than the groove width of the groove 41, to prevent the torsion spring 42 from being dislodged from the groove 41 during elastic recovery.
[0036] In this preferred embodiment, the open support further includes an anti-detachment component, which includes a pair of anti-detachment grooves 51, a pair of anti-detachment blocks 52, and an anti-detachment shaft 53. The outer ends of the pair of anti-detachment blocks 52 are embedded and snapped into the pair of anti-detachment grooves 51. The length of the snapping end of the pair of anti-detachment blocks 52 is greater than the length of the groove opening of the pair of anti-detachment grooves 51. The interiors of the pair of anti-detachment blocks 52 are hinged together by the anti-detachment shaft 53.
[0037] The locking end of the anti-detachment block 52 of the aforementioned anti-detachment component is larger than the size of the anti-detachment groove 51 to prevent the anti-detachment block 52 from falling out of the anti-detachment groove 51; when the opening end of the support frame is closed and in contact, a pair of anti-detachment blocks 52 are positioned at a horizontal 180-degree position after opening, and the double guiding effect is good when opening or closing.
[0038] In this preferred embodiment, the support frame is Z-shaped, and a gripping ring 13 is provided at the end of the gripping part 12 of the support frame.
[0039] Furthermore, the hinge includes a hinge seat 14, a hinge block 15, and a hinge shaft 16. The outer end of the hinge seat 14 is fixed to the middle of one of the support frames, and the outer end of the hinge block 15 is fixed to the middle of the other support frame. The inner ends of the hinge seat 14 and the hinge block 15 are hinged together by the hinge shaft 16.
[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A fixable opening support, comprising a pair of spreading frames and a hinge, wherein the pair of spreading frames are arranged parallel to each other on both sides of the hinge, and the middle portions of the pair of spreading frames are hingedly connected via the hinge; characterized in that, The opening support also includes an adjustment component and a locking component. The adjustment component includes an adjustment bar, several locking slots, and a sliding groove. Each pair of the opening frames includes an opening part and a gripping part. The sliding groove is provided inside the gripping part of the opening frame, and the adjustment bar passes laterally through the sliding groove of the opening frame. The locking component is located at the top of the gripping part of the opening frame. The locking component passes vertically through one of the locking slots of the adjustment bar, thereby locking the positions of both ends of the adjustment bar. The distance between the pair of gripping parts of the opening frame is fixed.
2. A fixable opening support as described in claim 1, characterized in that, The locking assembly includes a fixing block, a telescopic groove, and a telescopic block. The fixing block is longitudinally fixedly connected to one end of the adjusting bar and one gripping part of the support frame. The telescopic groove is longitudinally disposed through the middle of the outer end of the other gripping part of the support frame. The telescopic block is inserted longitudinally into one of the locking grooves of the adjusting bar along the telescopic groove, thereby fixing the distance between the pair of gripping parts of the support frame.
3. A fixable opening support as described in claim 2, characterized in that, The locking assembly also includes a spring and a suction member. The telescopic block is a telescopic magnet. The two ends of the spring are respectively fixedly connected to the top wall of the telescopic groove and the top of the telescopic block. The suction member is disposed on the top surface of the gripping part of the support frame. The suction member is close to the telescopic groove and generates a suction force on the telescopic block. The spring and the telescopic block are compressed together.
4. A fixable opening support as described in claim 3, characterized in that, The attracting component includes a rotating shaft, a rotating block, and an attracting magnet. The rotating shaft is rotatably mounted longitudinally on the gripping part of the support frame. The rotating block is horizontally mounted on the outer periphery of the rotating shaft. The attracting magnet is mounted on the outer end of the rotating block. The distance between the rotating shaft and the attracting magnet is equal to the distance between the rotating shaft and the telescopic groove.
5. A fixable opening support as described in claim 2, characterized in that, The locking groove and telescopic block have a circular, waist-shaped, or elliptical cross-sectional shape.
6. A fixable opening support as described in claim 1, characterized in that, The opening support also includes a recovery component, which includes a pair of slots and a torsion spring. The torsion spring is laterally disposed between the hinge and the rack. The cross-sectional shape of the pair of slots is T-shaped, and the two ends of the torsion spring are embedded and engaged in the pair of slots.
7. A fixable opening support as described in claim 1, characterized in that, The open support also includes an anti-detachment component, which includes a pair of anti-detachment grooves, a pair of anti-detachment blocks, and an anti-detachment shaft. The outer ends of the pair of anti-detachment blocks are embedded and snapped into the pair of anti-detachment grooves. The length of the snapping end of the pair of anti-detachment blocks is greater than the length of the groove opening of the pair of anti-detachment grooves. The interiors of the pair of anti-detachment blocks are hinged together by the anti-detachment shaft.
8. A fixable opening support as described in claim 1, characterized in that, The support frame is Z-shaped, and a gripping ring is provided at the end of the gripping part of the support frame.
9. A fixable opening support as described in claim 1, characterized in that, The hinge includes a hinge seat, a hinge block, and a hinge shaft. The outer end of the hinge seat is fixed to the middle of one of the support frames, and the outer end of the hinge block is fixed to the middle of the other support frame. The inner ends of the hinge seat and the hinge block are hinged together by the hinge shaft.