Operation distraction device convenient to operate

Abstract

The utility model is suitable for the technical field of medical instruments, and provides an operation dilator which is convenient to operate and comprises a support provided with a sliding groove. The two-way screw rod is rotationally mounted in the sliding chute and extends out of the bracket; the two opening clamps are installed on the two-way screw rod in a threaded mode, and the two opening clamps are connected with the sliding groove in a sliding mode; the first bevel gear is fixedly mounted on the two-way screw rod; the rotating shaft is rotationally mounted on the bracket; the second bevel gear is fixedly mounted on the rotating shaft, and the second bevel gear is meshed with the first bevel gear; and the non-return wheel is fixedly arranged on the rotating shaft. According to the operation dilator convenient to operate, a wound can be dilated and fixed, the fixing operation is simple and convenient, and the workload of medical staff is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to an operationally convenient surgical retractor. Background Art

[0002] In orthopedic surgeries, it is necessary to expand the wound, so a retractor is used. However, in the prior art, existing medical staff use a retractor to open the wound and then fix the retractor. Such operation is very troublesome. The retractor not only brings pain to the patient but also is not conducive to the adjustment of the wound. At the same time, some existing retractors also eliminate the trouble of fixing the retractor, but they are not easy to operate, thus greatly increasing the workload of medical staff in use. Summary of the Utility Model

[0003] The utility model provides an operationally convenient surgical retractor, aiming to solve the problem that the existing retractor used in the process is relatively cumbersome to fix and increases the workload of medical staff as proposed in the above background art.

[0004] To solve the above problems, the utility model is realized as follows: An operationally convenient surgical retractor includes: a bracket provided with a chute; a bidirectional screw, the bidirectional screw is rotatably installed in the chute and extends outside the bracket; two retractor clips, the two retractor clips are threadedly installed on the bidirectional screw, and the two retractor clips are slidably connected to the chute; a first bevel gear, the first bevel gear is fixedly installed on the bidirectional screw; a rotating shaft, the rotating shaft is rotatably installed on the bracket; a second bevel gear, the second bevel gear is fixedly installed on the rotating shaft, and the second bevel gear meshes with the first bevel gear; a ratchet wheel, the ratchet wheel is fixedly installed on the rotating shaft; a fixed cover, the fixed cover is fixedly installed on the bracket and is correspondingly arranged with the first bevel gear and the second bevel gear, and the fixed cover is rotatably connected to the rotating shaft; a limiting mechanism, the limiting mechanism is arranged on the fixed cover for restricting the rotation of the rotating shaft, and the limiting mechanism is correspondingly arranged with the ratchet wheel.

[0005] Preferably, the limiting mechanism includes a mounting seat, a limiting block, a mounting groove, a torsion spring and an adjusting mechanism. The mounting seat is slidably arranged on the fixed cover, the limiting block is hinged to the mounting seat, the limiting block abuts against the ratchet wheel, the mounting groove is opened on the limiting block, the torsion spring is arranged in the mounting groove and is correspondingly arranged with the mounting seat, and the adjusting mechanism is arranged on the fixed cover for adjusting the position of the limiting block, and the adjusting mechanism is correspondingly arranged with the mounting seat.

[0006] Preferably, the adjusting mechanism includes a movable opening, a limiting rod, a fixing block, and a reset button. The movable opening is formed in the fixing cover, and the movable opening is arranged corresponding to the mounting seat. The limiting rod is fixedly installed in the movable opening. The fixing block is fixedly installed on the mounting seat. The fixing block is slidably installed on the movable opening and is slidably connected to the limiting rod. The reset button is fixedly installed on the fixing block and is in sliding contact with the fixing cover.

[0007] Preferably, a clamping block is fixedly installed on the reset button, and a groove is formed in the fixing cover. The groove is arranged corresponding to the clamping block.

[0008] Preferably, an adjusting handle is sleeved on the rotating shaft. A strip-shaped protrusion is arranged on the part of the rotating shaft extending outside the fixing cover and is slidably connected to the adjusting handle. A sleeve is rotatably installed on the adjusting handle.

[0009] Preferably, handles are respectively fixedly installed on the bracket and the fixing cover. The handles are arranged corresponding to the two spreading clips.

[0010] Preferably, support blocks are fixedly installed on both of the spreading clips. The lengths of the two support blocks are wider than the sliding grooves and are in sliding contact with the bracket.

[0011] Compared with the related art, the operationally convenient surgical retractor provided by the present utility model has the following beneficial effects:

[0012] Compared with the prior art, the operationally convenient surgical retractor provided by this solution can conveniently and accurately adjust the spreading distance by setting an adjusting mechanism to meet different surgical requirements through the setting of the adjusting mechanism. This flexibility and precision greatly improve the efficiency and success rate of the surgery. Secondly, by adding components such as a limiting mechanism and support blocks, the stability and reliability of the retractor are effectively improved. During the surgery, the retractor can maintain a stable state and is not prone to shaking or deviation, thus ensuring the safe progress of the surgery. In addition, by optimizing the adjusting mechanism and adding components such as handles, medical staff can operate the retractor more easily and comfortably, reducing the work burden and improving the surgical experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic front sectional structure view of an operationally convenient surgical retractor provided by the present utility model;

[0014] Figure 2 is Figure 1 an enlarged structure view of part A shown in

[0015] Figure 3 is Figure 2 an enlarged structure view of part B shown in

[0016] Figure 4 This is a schematic top view sectional structure diagram of the anti - reverse wheel and the limit block provided by the present utility model.

[0017] Reference numerals: 1, bracket; 2, chute; 3, bidirectional screw; 4, spreading clip; 5, first bevel gear; 6, rotating shaft; 7, second bevel gear; 8, anti - reverse wheel; 9, fixed cover; 10, mounting seat; 11, limit block; 12, mounting groove; 13, torsion spring; 14, movable opening; 15, limit rod; 16, fixed block; 17, reset button; 18, clamping block; 19, adjusting handle; 20, handle. Specific embodiments

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the description of the present application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the description and claims of this application and the above - mentioned drawings are intended to cover non - exclusive inclusion. The terms "first", "second", etc. in the description and claims of this application or the above - mentioned drawings are used to distinguish different objects and not to describe a specific order; the terms "inner", "outer", "left", "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus cannot be construed as a limitation of the present utility model.

[0019] Reference to "embodiment" in this context means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The phrase does not necessarily refer to the same embodiment at every occurrence in the specification, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0020] The embodiment of the present utility model provides a surgically - used retractor that is convenient to operate, as Figures 1-4As shown in the figure, the operationally convenient surgical retractor includes: a bracket 1 provided with a chute 2; a bidirectional screw 3 rotatably installed in the chute 2 and extending outside the bracket 1; two retractor clips 4 threadedly installed on the bidirectional screw 3, and the two retractor clips 4 are slidably connected to the chute 2; a first bevel gear 5 fixedly installed on the bidirectional screw 3; a rotating shaft 6 rotatably installed on the bracket 1; a second bevel gear 7 fixedly installed on the rotating shaft 6, and the second bevel gear 7 meshes with the first bevel gear 5; a ratchet wheel 8 fixedly installed on the rotating shaft 6; a fixed cover 9 fixedly installed on the bracket 1 and correspondingly arranged with the first bevel gear 5 and the second bevel gear 7, and the fixed cover 9 is rotatably connected to the rotating shaft 6; a limiting mechanism arranged on the fixed cover 9 for restricting the rotation of the rotating shaft 6, and the limiting mechanism is correspondingly arranged with the ratchet wheel 8.

[0021] In this embodiment, when the bidirectional screw 3 rotates, the two retractor clips 4 will move towards or away from each other along the chute 2, so as to realize the function of retracting or expanding the wound. In order to more conveniently control the rotation of the bidirectional screw 3, a rotating shaft 6 is also rotatably installed on the bracket 1, and a second bevel gear 7 is fixedly installed on the rotating shaft 6. The second bevel gear 7 meshes with the first bevel gear 5 on the bidirectional screw 3. Therefore, when the rotating shaft 6 rotates, the bidirectional screw 3 will be driven to rotate through the transmission of these two bevel gears. In order to prevent the rotating shaft 6 from accidentally rotating during the operation, which may cause the state of the retractor to change, a ratchet wheel 8 is also fixedly installed on the rotating shaft 6. This ratchet wheel 8 can cooperate with the limiting mechanism. When the limiting mechanism contacts the ratchet wheel 8, it can prevent the further rotation of the rotating shaft 6, thereby locking the state of the retractor. In order to better protect the bevel gears and restrict the rotation of the rotating shaft 6, a fixed cover 9 is also fixedly installed on the bracket 1. This fixed cover 9 is rotatably connected to the rotating shaft 6 and covers the upper part of the first bevel gear 5 and the second bevel gear 7. A limiting mechanism is also provided on the fixed cover 9. This limiting mechanism is correspondingly arranged with the ratchet wheel 8 and can contact the ratchet wheel 8 when needed to prevent its rotation.

[0022] In a further preferred embodiment of the present utility model, the limiting mechanism comprises a mounting base 10, a limiting block 11, a mounting groove 12, a torsion spring 13 and an adjusting mechanism. The mounting base 10 is slidably arranged on the fixed cover 9. The limiting block 11 is hinged to the mounting base 10. The limiting block 11 abuts against the anti-reverse wheel 8. The mounting groove 12 is formed in the limiting block 11. The torsion spring 13 is arranged in the mounting groove 12 and corresponds to the mounting base 10. The adjusting mechanism is arranged on the fixed cover 9 for adjusting the position of the limiting block 11, and the adjusting mechanism corresponds to the mounting base 10.

[0023] In this embodiment, the mounting base 10 is designed to be slidably arranged on the fixed cover 9. This sliding design enables the mounting base 10 to move up and down on the fixed cover 9, thus facilitating the adjustment of the positional relationship between the limiting block 11 and the anti-reverse wheel 8. The limiting block 11 is connected to the mounting base 10 by a hinge. This connection method enables the limiting block 11 to rotate relative to the mounting base 10 to adapt to the contact and separation from the anti-reverse wheel 8. When the limiting block 11 abuts against the anti-reverse wheel 8, the rotation of the rotating shaft 6 can be blocked, thereby locking the state of the spreader. The mounting groove 12 is formed in the limiting block 11 for accommodating the torsion spring 13. The torsion spring 13 is an elastic element with a torsional restoring force. One end of it is fixed in the mounting groove 12, and the other end corresponds to the mounting base 10. When the limiting block 11 rotates under the action of an external force, the torsion spring 13 will deform and store energy. When the external force disappears, the torsion spring 13 will release the energy and push the limiting block 11 back to its original position. This design enables the limiting block 11 to automatically return to its initial state after separating from the anti-reverse wheel 8, facilitating the next use. A stop block is also fixedly installed on the mounting base 10. The stop block can limit the reset position of the limiting block 11, so that the limiting block 11 can still correspond to the anti-reverse wheel 8 after the position is adjusted and reset. To more conveniently adjust the position of the limiting block 11, an adjusting mechanism is also arranged on the fixed cover 9. The mounting base 10 can be manually driven to slide in the fixed cover 9, so that the limiting block 11 is separated from the anti-reverse wheel 8, and the rotation of the rotating shaft 6 is controlled to reduce the distance between the two spreader clips 4, facilitating the removal of the spreader.

[0024] In a further preferred embodiment of the present utility model, the adjusting mechanism comprises a movable opening 14, a limiting rod 15, a fixed block 16 and a reset button 17. The movable opening 14 is formed in the fixed cover 9. The movable opening corresponds to the mounting base 10. The limiting rod 15 is fixedly installed in the movable opening 14. The fixed block 16 is fixedly installed on the mounting base 10. The fixed block 16 is slidably installed on the movable opening 14 and is slidably connected to the limiting rod 15. The reset button 17 is fixedly installed on the fixed block 16 and is in sliding contact with the fixed cover 9.

[0025] In this embodiment, the design of the movable opening 14 enables the mounting seat 10 to slide and adjust on the fixed cover 9, thereby adjusting the position of the limit block 11. The limit rod 15 plays a guiding and limiting role, ensuring that the mounting seat 10 can remain stable during the sliding process and will not leave the range of the movable opening 14. The fixed connection between the fixed block 16 and the mounting seat 10 ensures the stability and synchronization between the two, and the sliding connection between the fixed block 16 and the limit rod 15 enables the mounting seat 10 to slide smoothly along the limit rod 15. The setting of the reset button 17 enables medical staff to operate the adjustment mechanism conveniently. When the position of the limit block 11 needs to be adjusted, just press the reset button 17 to push the fixed block 16 and the mounting seat 10 to slide along the limit rod 15. When adjusted to the appropriate position, release the reset button 17, and the mounting seat 10 and the limit block 11 can remain in the current position.

[0026] In a further preferred embodiment of the present invention, a clamping block 18 is fixedly mounted on the reset button 17 , and a groove is formed on the fixed cover 9 , and the groove is arranged corresponding to the clamping block 18 .

[0027] In this embodiment, when the medical staff presses the reset button 17 and pushes the mounting seat 10 to slide and adjust, they only need to apply a certain force to the reset button 17 to make it overcome the restriction of the groove on the block 18, and the block 18 will come out of the groove. The groove plays a role in positioning and restricting the block 18, so that the reset button 17 can be kept in a specific position after being pressed, and will not be easily reset due to accidental touch or other factors, which not only ensures the stability of the adjustment process, but also makes the reset operation simple and reliable.

[0028] In a further preferred embodiment of the utility model, an adjusting handle 19 is sleeved on the rotating shaft 6, a strip-shaped protrusion is provided on the portion of the rotating shaft 6 extending outside the fixed cover 9 and is slidably connected to the adjusting handle 19, and a sleeve is rotatably mounted on the adjusting handle 19.

[0029] In this embodiment, an adjustment handle 19 is sleeved on the rotating shaft 6. This adjustment handle 19 not only provides a more comfortable gripping point for medical staff, but also makes the rotation operation of the rotating shaft 6 more intuitive and convenient. Furthermore, strip-shaped protrusions are provided on the portion of the rotating shaft 6 extending outside the fixed cover 9. These strip-shaped protrusions are slidably connected to the adjustment handle 19, playing a guiding and limiting role. Through this sliding connection method, the adjustment handle 19 can be fixedly connected to the rotating shaft 6 without detaching or shaking. After the wound is stretched open, the adjustment handle 19 can be removed to prevent the rotating shaft 6 from being pushed to rotate during the operation.

[0030] In a further preferred embodiment of the present utility model, handles 20 are respectively and fixedly installed on the bracket 1 and the fixed cover 9, and the handles 20 are arranged corresponding to the two spreading clips 4.

[0031] In this embodiment, the handles 20 are designed to be arranged corresponding to the two spreading clips 4. Such a layout enables medical staff to stably hold the handles 20 when operating the spreader, thereby achieving precise control of the spreading clips 4. By adding the handles 20, the operationally convenient surgical spreader provided by the present utility model is not only more convenient for medical staff to operate, but also more stable and reliable during use, which helps to reduce misoperations during the surgery and improve the success rate and safety of the surgery.

[0032] In a further preferred embodiment of the present utility model, support blocks are fixedly installed on both of the two spreading clips 4, and the lengths of the two support blocks are wider than the sliding grooves 2 and are in sliding contact with the bracket 1.

[0033] In this embodiment, the lengths of the support blocks are designed to be wider than the sliding grooves 2 to ensure that they can completely cover and be in sliding contact with the bracket 1. Such a design not only increases the contact area between the spreading clips 4 and the bracket 1, making the whole structure more stable, but also effectively prevents the spreading clips 4 from shaking or shifting during the sliding process. By adding the support blocks, the operationally convenient surgical spreader provided by the present utility model has been significantly improved in terms of support and stability, and medical staff can use the spreader for surgical operations with more confidence, ensuring the safety and smooth progress of the surgical process.

[0034] In summary, compared with the related technologies, by setting the adjusting mechanism, the spreader of the present utility model can conveniently and accurately adjust the spreading distance to meet different surgical requirements. This flexibility and precision greatly improve the surgical efficiency and success rate. Secondly, by adding components such as the limiting mechanism and the support blocks, the stability and reliability of the spreader are effectively improved. During the surgery, the spreader can maintain a stable state and is not prone to shaking or shifting, thereby ensuring the safety of the surgery. In addition, by optimizing the adjusting mechanism and adding components such as the handles, medical staff can operate the spreader more easily and comfortably, reducing the work burden and improving the surgical experience.

[0035] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without creative efforts, combine, add or delete the features in the embodiments of the present invention according to the situation or make other adjustments, so as to obtain different technical solutions that essentially do not deviate from the concept of the present invention, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. An operationally convenient surgical retractor, characterized in that, include: A bracket with a slide groove; A bidirectional screw, which is rotatably mounted in the slide slot and extends outside the bracket; Two expansion clamps, the two expansion clamps are threadedly mounted on the bidirectional screw, and the two expansion clamps are slidably connected to the slide groove; A first bevel gear, wherein the first bevel gear is fixedly mounted on the bidirectional screw; A rotating shaft, the rotating shaft is rotatably mounted on the bracket; a second bevel gear, wherein the second bevel gear is fixedly mounted on the rotating shaft and meshes with the first bevel gear; A non-return wheel, the non-return wheel is fixedly mounted on the rotating shaft; A fixed cover, which is fixedly mounted on the bracket and arranged corresponding to the first bevel gear and the second bevel gear, and the fixed cover is rotatably connected to the rotating shaft; A limiting mechanism is provided on the fixed cover for limiting the rotation of the rotating shaft, and the limiting mechanism is provided corresponding to the non-return wheel.

2. The operationally convenient surgical retractor according to claim 1, wherein The limiting mechanism includes a mounting seat, a limiting block, a mounting groove, a torsion spring and an adjusting mechanism. The mounting seat is slidably arranged on the fixed cover, the limiting block is hinged on the mounting seat, the limiting block is in conflict with the non-return wheel, the mounting groove is opened on the limiting block, the torsion spring is arranged in the mounting groove and corresponds to the mounting seat, the adjusting mechanism is arranged on the fixed cover for adjusting the position of the limiting block, and the adjusting mechanism is arranged corresponding to the mounting seat.

3. The operationally convenient surgical retractor according to claim 2, wherein, The adjustment mechanism includes a movable opening, a limiting rod, a fixed block and a reset button, the movable opening is opened on the fixed cover, the movable opening is arranged corresponding to the mounting seat, the limiting rod is fixedly installed in the movable opening, the fixed block is fixedly installed on the mounting seat, the fixed block is slidably installed on the movable opening and is slidably connected to the limiting rod, and the reset button is fixedly installed on the fixed block and is in sliding contact with the fixed cover.

4. The operationally convenient surgical retractor according to claim 3, wherein, A clamping block is fixedly mounted on the reset button, and a groove is provided on the fixed cover, wherein the groove is arranged corresponding to the clamping block.

5. The operationally convenient surgical retractor according to claim 1, characterized in that, An adjusting handle is sleeved on the rotating shaft, a strip-shaped protrusion is provided on the portion of the rotating shaft extending outside the fixed cover and is slidably connected to the adjusting handle, and a sleeve is rotatably mounted on the adjusting handle.

6. The operationally convenient surgical retractor according to claim 1, wherein The bracket and the fixed cover are respectively fixedly mounted with handles, and the handles are arranged correspondingly to the two opening clamps.

7. The operationally convenient surgical retractor according to claim 1, wherein, Support blocks are fixedly mounted on the two opening clamps. The lengths of the two support blocks are wider than the sliding grooves and are in sliding contact with the brackets.

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