Pull-type dilator for oral root tip operation

By designing a traction-type stretching device for oral root apical surgery, the combination of adjustment mechanism and tension springs is used to solve the problem of traumatic surgery in the prior art, and stable support and traumaticity of the patient's oral cavity are achieved. Reduce, improving the safety and operability of the surgery.

CN222217965UActive Publication Date: 2024-12-24HOSPITAL OF STOMATOLOGY XIAN JIAOTONG UNIVERSITY
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Patent Information

Application Number
CN202420833824.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-22
Publication Date
2024-12-24
Estimated Expiration
2034-04-22

AI Technical Summary

Technical Problem

In the prior art, silk thread or hook is used to pull the wound edges on both sides, resulting in ischemia and swelling of the surrounding tissues during oral root apical surgery, increasing surgical trauma.

Method used

A traction-type opener for oral root apical surgery is designed, including a lower pallet, an upper pallet, a support tube, an arc-shaped sliding cover, a support mechanism and an adjustment mechanism to adjust the position and stretch of the support strip through the adjustment mechanism. The spring is subjected to a stress state to achieve stable support to the patient's oral cavity and avoid damage to the teeth or gums.

Benefits of technology

It effectively reduces the trauma of the surgery, improves the safety and operability of the surgery, adapts to the oral needs of different patients, and protects oral tissue.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of medical instruments, particularly relates to a pull-type dilator for an oral root tip operation, and provides the following scheme aiming at the defects that peripheral tissues are ischemic and swelled and the operation trauma is increased inevitably due to the fact that wound edges on two sides are pulled by using a silk thread or a drag hook in the prior art: the pull-type dilator comprises a lower supporting plate and an upper supporting plate, a supporting strip is arranged on the lower supporting plate, a supporting pipe is fixedly installed on the top of the lower supporting plate, moving holes are formed in the inner walls of the two sides of the supporting pipe, and a sliding hole is formed in the upper supporting plate, the supporting strip can be inserted into the mouth of a patient after the position of the supporting strip is adjusted, and then the distance between the lower supporting plate and the upper supporting plate can be adjusted by rotating a screw rod. Therefore, the oral cavity of the patient can be stably supported, when the oral cavity of the patient is supported, damage to teeth or gingiva can be avoided, the oral cavity of the patient can be protected, and good practicability is achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a traction-type spreader for oral apex surgery. Background Art

[0002] Oral minimally invasive apical surgery is a common root canal surgical procedure for the treatment of pulp disease and apical periodontitis. It refers to an operation performed with the assistance of an oral microscope using microsurgical instruments. It mainly includes flap opening, bone removal, apical scaling, apical resection, apical preparation, apical filling, suturing and other major steps.

[0003] In recent years, with the clinical popularization of oral microscopes and the clinical application of microsurgical instruments, the operability of apical surgery has been enhanced, and the apical sealing effect has been continuously improved, which has greatly improved the success rate of apical surgery. Although the use of oral microscopes and microsurgical instruments can make the surgery more delicate and minimally invasive;

[0004] However, in order to expose the surgical area as fully as possible during the operation, it is necessary to pull the wound edges on both sides with silk threads or retractors, which inevitably leads to ischemia and swelling of the surrounding tissues and increases the trauma of the operation. Therefore, we propose a traction dilator for oral apical surgery to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that silk threads or retractors are used to pull wound edges on both sides, which inevitably leads to ischemia and swelling of surrounding tissues and increases surgical trauma, and proposes a traction-type spreader for oral apex surgery.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A traction-type spreader for oral apex surgery comprises a lower support plate and an upper support plate, a support tube is fixedly mounted on the top of the lower support plate, movable holes are provided on the inner walls of both sides of the support tube, a sliding hole is provided on the upper support plate, the support tube passes through the sliding hole and is slidably connected to the inner wall of the sliding hole, and the spreader also comprises:

[0008] Two arc-shaped sliding covers, the two arc-shaped sliding covers are respectively fixedly mounted on one side of the lower support plate and one side of the upper support plate, two supporting mechanisms are mounted inside the arc-shaped sliding covers, and one side of the supporting mechanism extends to the outside of the arc-shaped sliding covers;

[0009] The adjusting mechanism is installed on the other side of the lower support plate, one side of the adjusting mechanism extends into the support tube, the adjusting mechanism passes through the two movable holes and is respectively connected to the inner walls on both sides of the sliding hole, and the adjusting mechanism is used to adjust the height position of the upper support plate on the support tube.

[0010] In one possible design, the supporting mechanism includes a sliding rod slidably connected in the arc-shaped sliding cover, one end of the sliding rod extends to the outside of the arc-shaped sliding cover, a mounting rod located outside the arc-shaped sliding cover is fixedly installed on the sliding rod, and a support bar is fixedly installed at one end of the mounting rod.

[0011] In a possible design, limit strips are fixedly installed on both sides of the support tube, and two sliding openings are symmetrically opened on the inner wall of the sliding hole. The limit strips pass through the corresponding sliding openings and are slidably connected with the sliding openings.

[0012] In a possible design, a tension spring is sleeved on the support tube and is located between the lower support plate and the upper support plate, and the top and bottom ends of the tension spring are fixedly connected to the bottom of the upper support plate and the top of the lower support plate respectively.

[0013] In a possible design, the adjustment mechanism includes a limit frame fixedly mounted on one side of the lower support plate, the upper support plate is movably contacted with one side of the limit frame, a screw is rotatably connected in the limit frame, a movable plate is slidably connected in the limit frame, a nut is fixedly mounted on the top of the movable plate, the screw passes through the movable plate and the nut respectively and is threadedly connected to the nut, a pull rope is fixedly mounted on the top of the movable plate, one end of the pull rope extends into the support tube and a connecting plate is fixedly mounted, both sides of the connecting plate respectively pass through the corresponding movable holes and extend to the outside of the support tube, and both sides of the connecting plate are fixedly connected to the inner walls of both sides of the sliding hole respectively.

[0014] In a possible design, the top end of the support tube is rotatably connected to a first support wheel, the top end of the limit frame is rotatably connected to a second support wheel, and the pull rope is respectively mounted on the first support wheel and the second support wheel.

[0015] In the present application, firstly, the lateral position of the slide bar is adjusted, so that the position of the support bar can be adjusted according to the actual situation of the patient's oral cavity. After the adjustment is completed, the support bar can be inserted into the patient's oral cavity, and the support bar can be used to contact the inner wall of the oral cavity. Then the screw rod can be rotated, and at this time, under the action of the threaded transmission with the nut, the movable plate can be driven to move downward, and at this time, a pulling force can be generated on the pull rope, so that the pull rope moves. At this time, under the support and cooperation of the first support wheel and the second support wheel, the end of the pull rope connected to the connecting plate can move upward, so that the connecting plate can be driven to move upward along the support tube, and the upper support plate can be driven to move upward. It can drive the upper support plate to move upward along the support tube, and the distance between the lower support plate and the upper support plate can be adjusted to meet the needs of different patients, so that the two support bars located above can support the patient's upper jaw, and the two support bars located below can support the patient's lower jaw, thereby supporting the patient's oral cavity, and when the upper support plate moves upward, the tension spring can be put in a stressed state. Therefore, after the patient's operation is completed, the movable plate is driven to move upward by rotating the screw in the opposite direction. At this time, the pull rope will lose its tension, so the tension spring in a stressed state can pull the upper support plate to reset and move downward along the support tube.

[0016] In the utility model, the traction-type spreader for oral apex surgery can be inserted into the patient's oral cavity after the lateral position of the slide bar is adjusted through the supporting mechanism, so that the supporting bar can be used to contact the inner wall of the oral cavity, thereby stably supporting the patient's oral cavity;

[0017] In the utility model, the traction-type spreader for oral apex surgery can drive the movable plate to move downward by rotating the screw rod under the threaded transmission action of the nut through the adjustment mechanism, and at this time, a pulling force can be generated on the pull rope, so that the pull rope moves, thereby driving the connecting plate to move upward along the support tube, and the upper support plate can be driven to move upward, and the distance between the lower support plate and the upper support plate can be adjusted, so as to meet the needs of different patients and facilitate the support of the patient's oral cavity;

[0018] The utility model can insert the support bar into the patient's mouth after the position of the support bar is adjusted, and then the distance between the lower support plate and the upper support plate can be adjusted by rotating the screw rod, so that stable support for the patient's mouth can be achieved, so that when supporting the patient's mouth, damage to the teeth or gums can be avoided, so the patient's mouth can be protected, and the utility model has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional schematic diagram of the first-view structure of a traction-type spreader for oral apex surgery proposed by the utility model;

[0020] Figure 2 A three-dimensional schematic diagram of the second-angle structure of a traction-type spreader for oral apex surgery proposed by the utility model;

[0021] Figure 3 A three-dimensional schematic diagram of the connection structure of the lower support plate and the upper support plate of a traction-type spreader for oral apex surgery proposed by the utility model;

[0022] Figure 4 A three-dimensional schematic diagram of the connection structure of the screw, moving plate, pull rope and connecting plate of a traction-type distractor for oral apex surgery proposed by the utility model;

[0023] Figure 5 The utility model is a three-dimensional schematic diagram of the connection structure of an arc-shaped sliding cover, two sliding rods and two supporting bars of a traction-type dilator for oral apex surgery.

[0024] In the figure: 1. lower support plate; 2. support tube; 3. limit bar; 4. upper support plate; 5. arc-shaped sliding cover; 6. sliding rod; 7. mounting rod; 8. support bar; 9. tension spring; 10. limit frame; 11. moving plate; 12. pull rope; 13. nut; 14. connecting plate; 15. first support wheel; 16. screw rod; 17. second support wheel. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Example

[0026] Reference Figure 1-5 A spreader comprises a lower support plate 1, an upper support plate 4, two arc-shaped sliding covers 5 and an adjusting mechanism. A supporting tube 2 is fixedly installed on the top of the lower support plate 1. Moving holes are opened on the inner walls of both sides of the supporting tube 2. A sliding hole is opened on the upper support plate 4. The supporting tube 2 passes through the sliding hole and is slidably connected to the inner walls of the sliding hole. The two arc-shaped sliding covers 5 are respectively fixedly installed on one side of the lower support plate 1 and one side of the upper support plate 4. Two supporting mechanisms are installed in the arc-shaped sliding cover 5. One side of the supporting mechanism extends to the outside of the arc-shaped sliding cover 5. The adjusting mechanism is installed on the other side of the lower support plate 1. One side of the adjusting mechanism extends into the supporting tube 2. The adjusting mechanisms respectively pass through the two moving holes and are respectively connected to the inner walls of both sides of the sliding hole. The adjusting mechanism is used to adjust the height position of the upper support plate 4 in the supporting tube 2.

[0027] The supporting mechanism includes a sliding rod 6 slidably connected in the arc-shaped sliding cover 5, one end of the sliding rod 6 extends to the outside of the arc-shaped sliding cover 5, and a mounting rod 7 located on the outside of the arc-shaped sliding cover 5 is fixedly installed on the sliding rod 6, and a support bar 8 is fixedly installed on one end of the mounting rod 7. After the lateral position of the sliding rod 6 is adjusted, the support bar 8 can be inserted into the patient's mouth, and the support bar 8 can be used to contact the inner wall of the oral cavity, so that the patient's mouth can be stably supported.

[0028] Limiting strips 3 are fixedly installed on both sides of the support tube 2, and two sliding openings are symmetrically opened on the inner wall of the sliding hole. The limiting strips 3 pass through the corresponding sliding openings and are slidably connected with the sliding openings. The limiting strips 3 are slidably connected with the corresponding sliding openings, so that the upper support plate 4 can be limited in longitudinal sliding, so that when the upper support plate 4 moves longitudinally on the support tube 2, it cannot rotate, and the characteristics of the two limits can be maintained.

[0029] The adjustment mechanism includes a limit frame 10 fixedly mounted on one side of the lower support plate 1, the upper support plate 4 is in active contact with one side of the limit frame 10, a screw rod 16 is rotatably connected in the limit frame 10, a movable plate 11 is slidably connected in the limit frame 10, a nut 13 is fixedly mounted on the top of the movable plate 11, the screw rod 16 respectively penetrates the movable plate 11 and the nut 13 and is threadedly connected to the nut 13, a pull rope 12 is fixedly mounted on the top of the movable plate 11, one end of the pull rope 12 extends into the support tube 2 and is fixedly mounted with a connecting plate 14, and both sides of the connecting plate 14 respectively penetrate the corresponding movable plate 11 and the nut 13. The movable hole extends along the outside of the support tube 2, and the two sides of the connecting plate 14 are fixedly connected to the inner walls of the two sides of the sliding hole respectively. By rotating the screw 16 and the threaded transmission of the nut 13, the movable plate 11 can be driven to move downward. At this time, a pulling force can be generated on the pull rope 12, so that the pull rope 12 moves, thereby driving the connecting plate 14 to move upward along the support tube 2, and the upper support plate 4 can be driven to move upward, and the distance between the lower support plate 1 and the upper support plate 4 can be adjusted to meet the needs of different patients and facilitate the support of the patient's oral cavity.

[0030] The present application can be used in the field of medical device technology, and can also be used in other fields applicable to the present application. Example

[0031] refer to Figure 2 and Figure 4, improved on the basis of embodiment 1: a traction dilator for oral apex surgery, which is applied to the field of medical device technology, a tension spring 9 is sleeved on the support tube 2 and is located between the lower support plate 1 and the upper support plate 4, and the top and bottom ends of the tension spring 9 are respectively fixedly connected to the bottom of the upper support plate 4 and the top of the lower support plate 1, and the elastic force of the tension spring 9 can be used to move the upper support plate 4 closer to the lower support plate 1 after it is not subjected to tension, so that the position of the upper support plate 4 can be easily adjusted, the top end of the support tube 2 is rotatably connected to the first support wheel 15, and the top of the limit frame 10 is rotatably connected to the second support wheel 17, and the pull rope 12 is respectively mounted on the first support wheel 15 and the second support wheel 17, and the pull rope 12 can be supported by the first support wheel 15 and the second support wheel 17, so that the pull rope 12 can be easily adjusted when the pull rope 12 needs to be turned.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A traction-type spreader for oral apex surgery, comprising a lower support plate (1) and an upper support plate (4), wherein a support tube (2) is fixedly mounted on the top of the lower support plate (1), movable holes are provided on the inner walls of both sides of the support tube (2), and a sliding hole is provided on the upper support plate (4), wherein the support tube (2) passes through the sliding hole and is slidably connected to the inner wall of the sliding hole, and wherein the support tube (2) passes through the sliding hole and is slidably connected to the inner wall of the sliding hole, and wherein the support tube (2) is provided with a sliding hole. The spreader also includes: Two arc-shaped sliding covers (5), the two arc-shaped sliding covers (5) are respectively fixedly mounted on one side of the lower support plate (1) and one side of the upper support plate (4), two supporting mechanisms are mounted inside the arc-shaped sliding covers (5), and one side of the supporting mechanism extends to the outside of the arc-shaped sliding covers (5); An adjustment mechanism is installed on the other side of the lower support plate (1), one side of the adjustment mechanism extends into the support tube (2), the adjustment mechanism passes through the two movable holes and is respectively connected to the inner walls on both sides of the sliding hole, and the adjustment mechanism is used to adjust the height position of the upper support plate (4) on the support tube (2).

2. A traction-type spreader for oral apex surgery according to claim 1, characterized in that: The supporting mechanism comprises a sliding rod (6) slidably connected in the arc-shaped sliding cover (5), one end of the sliding rod (6) extending to the outside of the arc-shaped sliding cover (5), a mounting rod (7) located outside the arc-shaped sliding cover (5) is fixedly mounted on the sliding rod (6), and a support bar (8) is fixedly mounted on one end of the mounting rod (7).

3. The traction-type spreader for oral apex surgery according to claim 1, characterized in that: Limiting strips (3) are fixedly mounted on both sides of the support tube (2), and two sliding openings are symmetrically provided on the inner wall of the sliding hole, and the limiting strips (3) pass through the corresponding sliding openings and are slidably connected to the sliding openings.

4. The traction-type spreader for oral apex surgery according to claim 1, characterized in that: The support tube (2) is sleeved with a tension spring (9) located between the lower support plate (1) and the upper support plate (4), and the top and bottom ends of the tension spring (9) are fixedly connected to the bottom of the upper support plate (4) and the top of the lower support plate (1), respectively.

5. The traction-type spreader for oral apex surgery according to claim 1, characterized in that: The adjustment mechanism comprises a limit frame (10) fixedly mounted on one side of the lower support plate (1), the upper support plate (4) being in movable contact with one side of the limit frame (10), a screw rod (16) being rotatably connected in the limit frame (10), a movable plate (11) being slidably connected in the limit frame (10), a nut (13) being fixedly mounted on the top of the movable plate (11), the screw rod (16) respectively penetrating the movable plate (11) and the nut (13) and being threadedly connected to the nut (13), a pull rope (12) being fixedly mounted on the top of the movable plate (11), one end of the pull rope (12) extending into the support tube (2) and being fixedly mounted with a connecting plate (14), two sides of the connecting plate (14) respectively penetrating corresponding movable holes and extending along to the outside of the support tube (2), and two sides of the connecting plate (14) being fixedly connected to two side inner walls of the sliding hole.

6. A traction-type spreader for oral apex surgery according to claim 5, characterized in that: The top end of the support tube (2) is rotatably connected to a first support wheel (15), the top end of the limit frame (10) is rotatably connected to a second support wheel (17), and the pull rope (12) is respectively mounted on the first support wheel (15) and the second support wheel (17).