Operation drag hook for alveolar surgery and use method of operation drag hook

Abstract

The invention relates to an operation drag hook for the alveolar surgery department and a using method thereof, and relates to the technical field of dental auxiliary appliances, the operation drag hook comprises an auxiliary clamping base, a line expanding rod is installed on one side of the auxiliary clamping base through a middle connection round wheel, and the auxiliary clamping base and the line expanding rod are provided with a clamping piece, an expanding and supporting unit and a leading-out assembly; the expanding and supporting unit comprises a push-and-support rod inserted into the row expanding rod through an inner round rod, the row expanding rod is provided with a main groove matched with the push-and-support rod and a round through hole communicated with the main groove and allowing the inner round rod to be installed, the auxiliary clamping seat is provided with a round groove hole allowing the inner round rod to be inserted and installed, and the push-and-support rod is provided with two semicircular shifting pieces; and the row expanding rod is provided with an internal expanding mechanism matched with the pushing and supporting rod and a pushing and locking device for locking the position of the pushing and supporting rod. The oral cavity support has the advantages that when an oral cavity operation is carried out, the cheek of a patient can be supported, more operable space is provided for medical staff, saliva and blood generated in the operation view can be conveniently led out, and the effect that the operation area is kept clean is achieved.

Description

Technical Field

[0001] This application relates to the technical field of dental auxiliary appliances, and particularly to a surgical retractor for alveolar surgery and its usage method. Background Art

[0002] Alveolar surgery refers to the surgical treatment of the alveolar bone and surrounding tissues, which is usually used to solve various problems related to teeth, gums or alveolar bone. Common alveolar surgeries include: Tooth extraction: including the extraction of wisdom teeth and other diseased teeth. Alveolar bone grafting: used to increase the height or width of the alveolar bone for subsequent dental implant surgery. Dental implant surgery: implanting dental implants into the alveolar bone to replace missing teeth. Periodontal surgery: used to treat severe periodontal diseases, including gingivectomy, flap surgery, etc.

[0003] For example, in the existing Chinese patent with the publication number CN115137501B, it discloses a surgical retractor device for dental use and its usage method. Through the above-mentioned prior art, the clamping head and the clamping seat cooperate with each other to achieve the clamping of teeth. The worm and the screw cooperate with each other. When the screw rotates, the cheek plate can move away from the teeth, thereby lifting the cheek, effectively expanding the operating space and facilitating the subsequent surgery.

[0004] However, the above-mentioned prior art has the following technical defects:

[0005] When the above-mentioned prior art is used, the clamping of teeth is achieved through the clamping device. The flap is connected to the retractor, and then the cheek plate is placed on one side of the cheek; rotating the knob drives the worm to rotate, and the screw rotates in the direction of screwing out of the thread groove, so that the gap between the cheek plate and the left support becomes larger, thereby lifting the cheek. In actual use, it is necessary to clamp on the corresponding teeth, and then the cheek plate can be used to lift the cheek at the clamped teeth. However, the length of the cheek plate is limited, so the operable space that can be lifted is certain, and the operation limitation during the surgery is relatively high.

[0006] Secondly, during invasive surgical operations on the oral cavity, doctors often need to clean saliva and blood to keep the surgical area clean. However, the above-mentioned device does not have corresponding components for draining saliva and blood. The saliva, blood, etc. generated in the surgical field need to be separately removed by the assistant operating the suction device, which is not conducive to the continuity of the diagnosis and treatment work, and increases the work burden of medical staff and the risk of surgical infection.

[0007] Based on this, on the basis of the existing surgical retractor device for dental use and its usage method, in order to overcome the above-mentioned technical defects, there is still room for improvement. Summary of the Invention

[0008] In order to support the patient's cheek during oral surgery, provide more operating space for medical staff, and facilitate the drainage of saliva and blood generated in the surgical field to keep the surgical area clean, the present application provides a surgical retractor for alveolar surgery and its usage method.

[0009] In the first aspect, a surgical retractor for alveolar surgery provided by the present application adopts the following technical solution:

[0010] A surgical retractor for alveolar surgery includes an auxiliary clamping seat. One side of the auxiliary clamping seat is installed with an expanding rod through a middle connecting round wheel. The auxiliary clamping seat and the expanding rod are provided with a clamping member, an expanding unit, and a leading-out assembly.

[0011] The expanding unit includes a pushing rod inserted into the expanding rod through an inner round rod. The expanding rod has a main groove adapted to the pushing rod, and a circular through-hole communicating with the main groove and for installing the inner round rod. The auxiliary clamping seat is provided with a circular groove hole for inserting and installing the inner round rod. Two semi-circular dial pieces are arranged on the pushing rod.

[0012] The expanding rod is provided with an inner expanding mechanism cooperating with the pushing rod and a pushing lock for locking the position of the pushing rod.

[0013] Preferably, the inner expanding mechanism includes an inner pushing strip embedded in the expanding rod. The expanding rod is provided with a secondary groove for installing the inner pushing strip. A positioning shaft is arranged at one end of the inner pushing strip in the secondary groove. A limiting shaft is arranged at the end of the inner pushing strip away from the positioning shaft. The expanding rod is provided with an arc-shaped sliding opening communicating with the secondary groove and for slidingly installing the limiting shaft.

[0014] Preferably, a linkage sleeve rod is arranged on the limiting shaft. A connecting rope is connected to the linkage sleeve rod. One end of the connecting rope penetrates and extends into the main groove to be connected with the pushing rod. A linkage hole is opened in the expanding rod to communicate the secondary groove with the main groove and for installing the connecting rope.

[0015] Preferably, the pushing lock includes an inner lock block slidably limited in the main groove through two round-end dial rods. The expanding rod is symmetrically provided with limiting sliding openings communicating with the main groove and for slidingly installing the two round-end dial rods. An inserting lock rod penetrating the inner round rod is installed on one side of the inner lock block. Two inserting lock holes adapted to the inserting lock rod are arranged on the inner round rod.

[0016] Preferably, the leading-out assembly includes a U-shaped tube inserted into the auxiliary clamping seat. The auxiliary clamping seat is provided with a circular insertion hole for inserting and installing the U-shaped tube. A connecting portion is arranged in the middle of the U-shaped tube. Two arc-shaped tubes are threadedly connected to the lower end of the U-shaped tube.

[0017] Preferably, one end of the arc-shaped tube has a threaded docking portion, the U-shaped tube has an internal threaded portion adapted to the threaded docking portion, and the arc-shaped tube is provided with a suction port.

[0018] Preferably, the clamping member includes an inner clamping plate rotatably arranged on the auxiliary clamping seat through an inner rotating shaft. The auxiliary clamping seat is provided with a round shaft hole for installing the inner rotating shaft, and a clamping torsion spring is sleeved on the inner rotating shaft located in the round shaft hole.

[0019] Preferably, the inner clamping plate is provided with an anti-slip portion.

[0020] In a second aspect, the present application also discloses a method for using a surgical retractor for alveolar surgery, and the method includes the following steps:

[0021] The first step, clamping and fixing: First, put the device into the patient's oral cavity, and clamp and fix the auxiliary clamping seat at the patient's front teeth through the clamping member;

[0022] The second step, pushing and propping up: Pull the push rod outwards through the semi-circular dial, so that the push rod disengages from the main groove and abuts against the inner side of the patient's oral cavity;

[0023] The third step, bending and pushing: When driving the push rod, the inner expansion mechanism will be driven to operate synchronously. Under the action of the inner expansion mechanism, the patient's cheek is propped up and resisted. Subsequently, the position of the push rod is locked by the push lock.

[0024] The fourth step, liquid extraction: Connect an external suction device to the extraction assembly to facilitate the extraction of saliva, blood, etc. from the patient's surgical area.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. After the device is put into the patient's oral cavity, by rotating the inner clamping plate and cooperating with the drive of the clamping torsion spring, the auxiliary clamping seat and the inner clamping plate can be clamped at the patient's front tooth position, so as to achieve the purpose of clamping and fixing the device in the patient's oral cavity.

[0027] 2. Subsequently, by pulling the two semi-circular dials, the push rod is driven to disengage from the main groove, so that the push rod abuts against the inner side of the patient's oral cavity. At the same time, following the displacement of the push rod, under the action of the connecting rope, the inner push bar will be driven to completely extend out of the secondary groove and push against the patient's cheek position. Then, the position of the push rod is locked by the push lock. To achieve the effect of propping up at multiple positions and providing more operating space for doctors.

[0028] 3. Before performing relevant surgeries, first dock the suction device with the connection part on the U-shaped tube. Subsequently, when saliva or blood appears in the surgical area, the interfering substances can be conveniently extracted to keep the surgical area clean. And there is no need for other personnel to operate other extraction devices additionally, reducing the risk of infection for other personnel. Brief Description of the Drawings

[0029] Figure 1 is a schematic diagram of the whole of the present invention Figure 1 .

[0030] Figure 2 is a schematic diagram of the whole of the present invention Figure 2 .

[0031] Figure 3 is a cross-sectional view of the clamping member of the present invention.

[0032] Figure 4 is a schematic diagram of the expansion unit of the present invention.

[0033] Figure 5 is an exploded view of the expansion unit of the present invention.

[0034] Figure 6 is a schematic diagram of the inner expansion mechanism of the present invention.

[0035] Figure 7 is a cross-section of the inner expansion mechanism of the present invention Figure 1 .

[0036] Figure 8 is a cross-section of the inner expansion mechanism of the present invention Figure 2 .

[0037] Figure 9 is a schematic diagram of the pusher of the present invention.

[0038] Figure 10 is an exploded view of the inner round rod and the plug lock rod of the present invention.

[0039] Figure 11 is a schematic diagram of the lead-out component of the present invention.

[0040] Figure 12 is an exploded view of the lead-out component of the present invention.

[0041] Figure 13 is a schematic diagram of the rotation lock of the present invention.

[0042] Figure 14 is an exploded view of the rotation lock of the present invention.

[0043] Figure 15 is a flowchart of the usage method of the hook of the present invention.

[0044] Description of reference numerals: 1. Auxiliary card seat; 11. Middle connecting round wheel; 12. Row expanding rod; 2. Clamping member; 3. Expanding support unit; 4. Lead-out component; 31. Inner round rod; 32. Pushing support rod; 121. Main groove; 122. Round through hole; 101. Round slot hole; 33. Semi-circular dial; 5. Inner expansion mechanism; 6. Push lock; 51. Inner push bar; 123. Sub-groove; 52. Positioning shaft; 53. Limit shaft; 124. Arc-shaped sliding port; 54. Linkage sleeve rod; 55. Connecting rope; 125. Linkage hole; 61. Round-end dial rod; 62. Inner lock block; 126. Limit sliding port; 63. Insert lock rod; 311. Insert lock hole; 41. U-shaped tube; 102. Circular jack; 411. Connecting part; 42. Arc-shaped tube; 421. Threaded docking part; 412. Inner threaded part; 422. Suction port; 21. Inner rotating shaft; 22. Inner side clamping plate; 103. Round shaft hole; 23. Clamping torsion spring; 221. Anti-slip part; 7. Rotating lock; 71. Elastic piece; 72. U-shaped limit rod; 127. Limit card slot. Detailed implementation mode

[0045] The following is further detailed description of this application in conjunction with the attached Figures 1 - 15 drawings.

[0046] The embodiment of this application discloses a surgical retractor for alveolar surgery and its usage method. During oral surgery, it can prop up the patient's cheek, provide more operating space for medical staff, and facilitate the drainage of saliva and blood generated in the surgical field to keep the surgical area clean.

[0047] Embodiment 1:

[0048] Referring to Figures 1 to 3 shown in the figure, on the first aspect, this application provides a surgical retractor for alveolar surgery, including an auxiliary card seat 1. One side of the auxiliary card seat 1 is installed with a row expanding rod 12 through a middle connecting round wheel 11. The auxiliary card seat 1 and the row expanding rod 12 are provided with a clamping member 2, an expanding support unit 3, and a lead-out component 4. During use, first place the device into the patient's oral cavity. The auxiliary card seat 1 can be clamped and fixed on the patient's front teeth through the clamping member 2 to fix the whole device. Subsequently, the expanding support unit 3 can prop up the patient's oral cavity in multiple directions to provide more operating control for the doctor. Finally, when saliva or blood appears in the surgical area, the interfering liquid can be conveniently and quickly led out through the lead-out component 4 to keep the surgical area clean.

[0049] The clamping member 2 includes an inner clamping plate 22 which is rotatably arranged on the auxiliary clamping seat 1 through the inner rotating shaft 21, and the inner clamping plate 22 and the inner rotating shaft 21 are fixedly connected; the auxiliary clamping seat 1 is provided with a round shaft hole 103 for installing the inner rotating shaft 21, and a clamping torsion spring 23 is sleeved on the inner rotating shaft 21 located in the round shaft hole 103. The clamping torsion spring 23 always has a driving force to drive the inner rotating shaft 21 to rotate toward the auxiliary clamping seat 1, that is, the inner clamping plate 22 always has a driving force to rotate toward the auxiliary clamping seat 1. The inner clamping plate 22 has an anti-slip portion 221. After the device is placed in the patient's mouth, the inner clamping plate 22 is driven to rotate away from the auxiliary clamping seat 1 by toggling the anti-slip portion 221, so that the gap between the auxiliary clamping seat 1 and the inner clamping plate 22 becomes larger, and then the gap between the auxiliary clamping seat 1 and the inner clamping plate 22 is clamped at the patient's front teeth, and under the action of the clamping torsion spring 23, the auxiliary clamping seat 1 and the inner clamping plate 22 are clamped at the patient's front teeth to stabilize the device in the patient's mouth.

[0050] Reference Figure 4 and Figure 5 As shown, in order to provide more operating space for medical personnel, the expansion unit 3 includes a push rod 32 inserted into the expansion rod 12 through the inner round rod 31, and the push rod 32 and the inner round rod 31 are fixedly connected; the expansion rod 12 has a main groove 121 adapted to the push rod 32, and a round through hole 122 connected to the main groove 121 and for the inner round rod 31 to be installed, and the auxiliary card seat 1 is provided with a round slot hole 101 for the inner round rod 31 to be inserted and installed, and the push rod 32 is provided with two semicircular paddles 33; the two semicircular paddles 33 are fixedly installed on the upper and lower sides of the push rod 32. The expansion rod 12 is provided with an inner expansion mechanism 5 matched with the push rod 32 and a push lock 6 for locking the position of the push rod 32.

[0051] After the device is firmly fixed in the patient's mouth, the two semicircular paddles 33 are pulled to drive the push rod 32 to move outward from the main groove 121, so that the push rod 32 contacts the inside of the patient's mouth. During the process, the inner expansion mechanism 5 operates to support the cheek inside the patient's mouth, achieving the purpose of supporting in multiple directions. Finally, the push lock 6 locks the position of the push rod 32, so as to provide more operating space for medical personnel.

[0052] Reference Figure 6As shown in the figure, considering that the operable area can be further expanded and the limitations of operation can be further reduced, the inner expansion mechanism 5 includes an inner push bar 51 embedded in the expansion rod 12. There is a secondary groove 123 on the expansion rod 12 for installing the inner push bar 51. A positioning shaft 52 is provided at one end of the inner push bar 51 in the secondary groove 123. A limiting shaft 53 is provided at the end of the inner push bar 51 away from the positioning shaft 52. An arc-shaped sliding opening 124 communicating with the secondary groove 123 and for slidably installing the limiting shaft 53 is formed on the expansion rod 12. When one end of the inner push bar 51 with the limiting shaft 53 installed is subjected to a driving force, the limiting shaft 53 can slide in the arc-shaped sliding opening 124. When sliding towards the positioning shaft 52, the inner push bar 51 can be driven to bend and extend out of the secondary groove 123.

[0053] Referring to Figure 7 and Figure 8 As shown in the figure, a linkage sleeve rod 54 is sleeved on the limiting shaft 53. A connecting rope 55 is connected to the linkage sleeve rod 54. One end of the connecting rope 55 penetrates and extends into the main groove 121 to be connected with the push support rod 32. A linkage hole 125 communicating the secondary groove 123 with the main groove 121 and for installing the connecting rope 55 is formed in the expansion rod 12. The push support rod 32 is made of rigid plastic material, and the inner push bar 51 is made of soft silicone material. When the two semi-circular paddles 33 are toggled to pull the push support rod 32 to extend out of the main groove 121 and contact the inner side of the patient's oral cavity, during the displacement of the push support rod 32, a driving force can be formed on the limiting shaft 53 through the connecting rope 55 and the linkage sleeve rod 54, so that the limiting shaft 53 slides towards the positioning shaft 52 in the arc-shaped sliding opening 124, thereby driving the inner push bar 51 to bend and extend out of the secondary groove 123 and push against the inner side of the patient's oral cavity. The purpose of propping up the inner side of the patient's oral cavity from two directions is achieved, and thus more operable surgical areas can be provided for doctors.

[0054] Referring to Figure 9 and Figure 10 As shown in the figure, since it is necessary to lock the position of the push support rod 32 and the state of the bent inner push bar 51 to continuously achieve the propping and expanding effect, the push lock 6 includes an inner lock block 62 slidably limited in the main groove 121 by two round-end lever rods 61. Limiting sliding openings 126 communicating with the main groove 121 and for slidably installing the two round-end lever rods 61 are symmetrically formed on the expansion rod 12. An insertion lock rod 63 penetrating the inner round rod 31 is installed on one side of the inner lock block 62. There are two insertion lock holes 311 on the inner round rod 31 adapted to the insertion lock rod 63. In the initial state, the insertion lock rod 63 is inserted into one of the insertion lock holes 311 on the inner round rod 31. When it is necessary to pull the push support rod 32 outwards, first, the operator horizontally toggles the round-end lever rod 61 to pull out the insertion lock rod 63 on the inner lock block 62 from the insertion lock hole 311 to release the lock on the inner round rod 31 first.

[0055] After the push support rod 32 extends outwards from the main groove 121 and abuts against the inner side of the patient's oral cavity, and the inner push bar 51 bends and extends out of the secondary groove 123 and abuts against the inner side of the patient's oral cavity from another position, then the round-end push rod 61 is horizontally toggled to reset, so that the plug lock rod 63 on the inner lock block 62 is inserted into another plug lock hole 311 on the inner round rod 31. The purpose of locking the position of the push support rod 32 and the bending state of the inner push bar 51 is achieved, and the effect of continuously propping up the inner side of the patient's oral cavity is realized, so as to facilitate the doctor to perform relevant oral surgeries.

[0056] Referring to Figure 11 and Figure 12 As shown, in order to be able to conveniently lead out the saliva and blood in the patient's oral cavity, and without the need for additional assistant personnel to operate relevant equipment to extend into the patient's oral cavity, reducing the risk of personnel infection, the leading-out component 4 includes a U-shaped tube 41 inserted on the auxiliary card seat 1. A circular jack 102 for inserting and installing the U-shaped tube 41 is penetrated and opened on the auxiliary card seat 1. A connecting portion 411 is arranged in the middle of the U-shaped tube 41, and two arc-shaped tubes 42 are threadedly connected to the lower end of the U-shaped tube 41. After the whole device is placed into the patient's oral cavity and fixed, the two arc-shaped tubes 42 will be located outside the teeth in the oral cavity. It should be noted that one end of the arc-shaped tube 42 is threadedly connected to the lower end of the U-shaped tube 41, while the other end is in a closed state.

[0057] Continuing to refer to Figure 11 and Figure 12 As shown, one end of the arc-shaped tube 42 has a threaded docking portion 421, the U-shaped tube 41 has an internal threaded portion 412 adapted to the threaded docking portion 421, and a suction port 422 is opened on the arc-shaped tube 42. Before the medical staff performs an oral surgery on the patient, a medical suction device used to suck out saliva and blood is connected to the connecting portion 411 on the U-shaped tube 41. During the surgery, the medical suction device can be started to operate, and the saliva or blood at the surgical area can be conveniently and quickly led out through the suction port 422 on the arc-shaped tube 42. There is no need for assistant personnel to operate other equipment to extend into the patient's oral cavity, reducing the risk of personnel infection.

[0058] The threaded connection between the U-shaped tube 41 and the two arc-shaped tubes 42 is convenient for assembly. After the surgery is completed and the whole device is taken out of the patient's oral cavity, the arc-shaped tube 42 can be conveniently detached from the U-shaped tube 41, so that the U-shaped tube 41 can be pulled out upwards and separated from the auxiliary card seat 1. So as to facilitate the cleaning and disinfection of the U-shaped tube 41 and the arc-shaped tube 42. In addition, the U-shaped tube 41 and the arc-shaped tube 42 can also be used once. While being convenient for disassembly and assembly, the infection risk of reusing is reduced.

[0059] Embodiment 2:

[0060] Referring to Figure 13 and Figure 14As shown, on the basis of the first embodiment, in order to improve the applicability of the device, the expansion rod 12 can be conveniently rotated and locked in position to be applicable to different alveolar edges. The expansion rod 12 is rotated on one side of the auxiliary card seat 1 through the central circular wheel 11. A rotation lock 7 is also provided between the auxiliary card seat 1 and the expansion rod 12. The rotation lock 7 includes a U-shaped limit rod 72 installed on the side of the auxiliary card seat 1 facing the expansion rod 12 through an elastic sheet 71. The expansion rod 12 is provided with a limit slot 127 adapted to the U-shaped limit rod 72 on the side facing the auxiliary card seat 1. It should be noted that the elastic sheet 71 always has a driving force to push the U-shaped limit rod 72 in the direction of the expansion rod 12; and the U-shaped limit rod 72 and the elastic sheet 71 are fixedly connected.

[0061] In actual use, the position of the expansion rod 12 is flexibly rotated and adjusted according to the position where the patient needs to undergo surgery, so that the expansion rod 12 can be located at different sides of the oral cavity. When the expansion rod 12 needs to be rotated and adjusted, the U-shaped limiting rod 72 is first pushed toward the auxiliary holder 1 to disengage the limiting slot 127 to release the restriction on the expansion rod 12. Then the expansion rod 12 is rotated to the other side of the auxiliary holder 1, and finally the U-shaped limiting rod 72 is released, so that it is re-engaged in the limiting slot 127 on one side of the expansion rod 12 under the drive of the elastic sheet 71, and the position of the expansion rod 12 is locked again.

[0062] Reference Figure 15 As shown, on the other hand, the present application also discloses a method for using a surgical retractor for alveolar surgery, and the steps of the method are as follows:

[0063] The first step is clamping and fixing: first, put the device into the patient's mouth, and clamp the auxiliary clamp 1 to the patient's front teeth through the clamping member 2; specifically, turn the anti-slip part 221 to drive the inner clamp 22 to rotate, so that the distance between the auxiliary clamp 1 and the inner clamp 22 becomes larger, and then clamp the auxiliary clamp 1 and the inner clamp 22 to the patient's front teeth. Under the action of the clamping torsion spring 23, the auxiliary clamp 1 will cooperate with the inner clamp 22 to clamp on the patient's front teeth.

[0064] The second step is to push and prop up: pull the push rod 32 outward through the semicircular paddle 33 to make the push rod 32 disengage from the main groove 121 and press against the inside of the patient's mouth; pull the two semicircular paddles 33 toward the outside of the patient's mouth to make the push rod 32 move outward from the main groove 121 and press against the inside of the patient's mouth.

[0065] Step 3: Bending and Pushing: When driving the push rod 32, the inner expansion mechanism 5 will be synchronously driven. Under the action of the inner expansion mechanism 5, the patient's cheek is resisted and propped up. Subsequently, the position of the push rod 32 is locked by the push lock 6. First, horizontally move the round-end lever 61 to pull out the insertion lock rod 63 on the inner lock block 62 from the insertion lock hole 311 to release the lock on the inner round rod 31. During the process of driving the push rod 32 to extend out of the main groove 121 and resist against the inner side of the patient's oral cavity, a driving force can be formed on the limit shaft 53 under the action of the connecting rope 55 and the linkage sleeve rod 54. The limit shaft 53 slides in the arc-shaped sliding opening 124 to drive the inner push bar 51 to bend and push against the inner side of the oral cavity outside the secondary groove 123. Finally, horizontally move the round-end lever 61 back to its original position to lock the position of the push rod 32 and the bending state of the inner push bar 51.

[0066] Step 4: Liquid Extraction: Connect an external aspirator to the extraction assembly 4 to facilitate the extraction of saliva, blood, etc. from the patient's surgical area. Before the operation, connect a medical aspirator to the connection part 411 on the U-shaped tube 41. During the operation, start the medical aspirator. Through the suction port 422 on the arc-shaped tube 42, the saliva or blood in the surgical area can be directly extracted.

[0067] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A surgical retractor for alveolar surgery, comprising an auxiliary holder (1), one side of the auxiliary holder (1) being provided with an expansion rod (12) via a central circular wheel (11), characterized in that: The auxiliary card seat (1) and the expansion rod (12) are provided with a clamping piece (2), an expansion unit (3) and a lead-out assembly (4); The expansion unit (3) comprises a push rod (32) inserted into the expansion rod (12) through an inner round rod (31); the expansion rod (12) has a main groove (121) adapted to the push rod (32), and a round through hole (122) connected to the main groove (121) and for the inner round rod (31) to be installed; the auxiliary holder (1) is provided with a round slot hole (101) for the inner round rod (31) to be inserted and installed; and the push rod (32) is provided with two semicircular paddles (33); The expansion rod (12) is provided with an inner expansion mechanism (5) matched with the push rod (32) and a push lock (6) for locking the position of the push rod (32).

2. A surgical retractor for alveolar surgery according to claim 1, characterized in that: The inner expansion mechanism (5) comprises an inner push bar (51) embedded in the expansion rod (12); the expansion rod (12) is provided with a secondary groove (123) for installing the inner push bar (51); a positioning shaft (52) is arranged at one end of the inner push bar (51) in the secondary groove (123); a limiting shaft (53) is arranged at one end of the inner push bar (51) away from the positioning shaft (52); and the expansion rod (12) is provided with an arc-shaped sliding opening (124) which is connected with the secondary groove (123) and is provided for the limiting shaft (53) to be slidably installed.

3. A surgical retractor for alveolar surgery according to claim 2, characterized in that: A linkage sleeve rod (54) is sleeved on the limit shaft (53), a connecting rope (55) is connected to the linkage sleeve rod (54), and one end of the connecting rope (55) penetrates into the main groove (121) and is connected to the push rod (32), and a linkage hole (125) is opened in the expansion rod (12) to connect the auxiliary groove (123) with the main groove (121) and to install the connecting rope (55).

4. The surgical retractor for alveolar surgery according to claim 1, characterized in that: The push lock device (6) comprises an inner locking block (62) which is limitedly slidably arranged in the main groove (121) through two round end levers (61); the expansion rod (12) is symmetrically provided with a limiting sliding opening (126) which is connected with the main groove (121) and is provided for the two round end levers (61) to be slidably installed; a locking rod (63) which passes through the inner round rod (31) is installed on one side of the inner locking block (62); and the inner round rod (31) has two locking holes (311) which are adapted to the locking rod (63).

5. The surgical retractor for alveolar surgery according to claim 1, characterized in that: The lead-out assembly (4) comprises a U-shaped tube (41) inserted into the auxiliary card seat (1); a circular insertion hole (102) is provided through the auxiliary card seat (1) for the U-shaped tube (41) to be inserted and installed; a connecting portion (411) is provided in the middle of the U-shaped tube (41); and two arc-shaped tubes (42) are threadedly connected at the lower end of the U-shaped tube (41).

6. A surgical retractor for alveolar surgery according to claim 5, characterized in that: One end of the arc-shaped tube (42) is provided with a threaded docking portion (421), the U-shaped tube (41) is provided with an internal threaded portion (412) adapted to the threaded docking portion (421), and the arc-shaped tube (42) is provided with a suction port (422).

7. The surgical retractor for alveolar surgery according to claim 1, characterized in that: The clamping member (2) comprises an inner clamping plate (22) which is rotatably arranged on the auxiliary clamping seat (1) via an inner rotating shaft (21); a circular shaft hole (103) for mounting the inner rotating shaft (21) is provided on the auxiliary clamping seat (1); and a clamping torsion spring (23) is sleeved on the inner rotating shaft (21) located in the circular shaft hole (103).

8. The surgical retractor for alveolar surgery according to claim 7, characterized in that: The inner clamping plate (22) is provided with an anti-slip portion (221).

9. A method for using a surgical retractor for alveolar surgery, characterized in that: Using the alveolar surgical retractor according to any one of claims 1 to 8, the operation steps are as follows: The first step is clamping and fixing: firstly, the device is placed in the patient's mouth, and the auxiliary clamping seat (1) is clamped and fixed on the patient's front teeth by the clamping piece (2); The second step is to push and prop up: the push and prop rod (32) is pulled outward by the semicircular pick (33), so that the push and prop rod (32) is separated from the main groove (121) and pressed against the inner side of the patient's oral cavity; The third step is bending and pushing: when the push support rod (32) is driven, the inner expansion mechanism (5) is driven to operate synchronously, and the cheek of the patient is pushed and propped up by the inner expansion mechanism (5), and then the position of the push support rod (32) is locked by the push lock (6); The fourth step is to draw out the liquid: by connecting the external suction device to the draw-out component (4), it is convenient to draw out the saliva, blood, etc. in the surgical area of ​​the patient.

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