Oral and maxillofacial surgery tumor gripping device

Abstract

The application discloses a tumor clamping device for oral and maxillofacial surgery and relates to the technical field of medical instruments, which comprises a clamping forceps body, a forceps handle and a forceps head, wherein the clamping forceps body further comprises a forceps body, one end of which is connected with the forceps head and the other end of which is connected with the forceps handle, and a cavity is formed in the forceps body; a trigger mechanism, which comprises at least a supporting rod arranged in the cavity and capable of moving axially along the forceps body and two strip-shaped plates, and one end of the forceps body is rotationally connected with a rotating disc; in the application, when the device is operated, the supporting rod is driven to translate by pulling the pull rod outward, when the supporting rod is pulled away from the rotating disc, the supporting rod pushes the strip-shaped plates to swing, and then the inner end of the forceps head is pushed away from the two sides of the supporting rod, at this time, the outer end of the forceps head is closed to clamp the tissue, after clamping, the rotating pull rod can synchronously drive the supporting rod, the strip-shaped plates and the rotating disc to realize overall angle adjustment of the forceps head, the clamping and overturning are completed while the clamping function is maintained, the wrist is prevented from moving greatly, and the operation stability and flexibility are ensured.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a tumor clamping device for oral and maxillofacial surgery. Background Technology

[0002] Oral and maxillofacial tumors refer to benign and malignant tumors that occur in the oral and maxillofacial region, including cysts, benign tumors and tumor-like lesions, and malignant tumors. Surgical treatment is one of the main treatment methods for oral and maxillofacial tumors. During tumor resection surgery, clamping devices are needed to hold the tumor to facilitate surgical operations, such as exposing the root of the tumor so that scissors or small incisions can be used to cut and remove it, or fixing the position of the tumor so that the doctor can accurately remove the tumor and avoid damaging the surrounding normal tissue.

[0003] Oral and maxillofacial surgery usually requires the coordinated operation of multiple instruments. After the clamping device clamps the tumor, in order to make room for other instruments such as scalpels, electrocautery, and suction devices, or to make the cooperation between the instruments smoother, the doctor needs to rotate his wrist to adjust the clamping position or angle. For example, when using a scalpel to cut along the edge of the tumor, it is necessary to adjust the clamping device to make the tumor at a suitable angle and position so that the scalpel can cut accurately.

[0004] Doctors need to hold the scalpel in their right hand and the clamping tool in their left hand to hold the tumor to be removed. Although the range of motion and flexibility of the human wrist are relatively large, maintaining a specific posture after rotation for a long time can easily lead to muscle fatigue. Moreover, the stability of the hand is affected when the wrist rotates, which manifests as hand tremors. This can lead to an unstable grip on the clamping tool, affecting the accurate cutting of the scalpel. Summary of the Invention

[0005] The purpose of this invention is to provide a tumor clamping device for oral and maxillofacial surgery to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides a tumor clamping device for oral and maxillofacial surgery, comprising a clamping forceps body, a forceps handle, and a forceps head. The clamping forceps body further includes...

[0007] The clamp body has one end connected to the clamp head and the other end connected to the clamp handle, and a cavity is opened inside the clamp body;

[0008] The triggering mechanism includes at least a support rod disposed in the chamber and movable along the axial direction of the clamp body, and two strip plates. One end of the clamp body is rotatably connected to a turntable. One end of each clamp head extends through the turntable into the chamber and is hinged to one end of the strip plate by a torsion spring. The other end of the strip plate is rotatably connected to the support rod, and is used to pull the strip plate to swing and open or close the two clamp heads when the support rod moves.

[0009] A pull rod is arranged in the chamber and coincides with the axis of the pliers body, one end of the pull rod is connected with the support rod, and the other end extends through the pliers body to between the two handles.

[0010] Further, the trigger mechanism further comprises,

[0011] The opposite side of the two plier heads is provided with a receiving groove, and a second fixing rod is connected in the receiving groove; one end of the strip-shaped plate is sleeved on the second fixing rod and connected with the second fixing rod through a torsion spring.

[0012] The two strip-shaped plates are respectively located at the top and bottom of the support rod, and the top and bottom of the support rod are rotationally connected with the strip-shaped plates through the first fixing rod.

[0013] Further, one end of the pliers body is provided with a through opening, and an inner embedding groove is formed in the outer ring wall of the rotating disc; the rotating disc is inserted into the through opening, and the outer wall of the inner embedding groove abuts against the inner wall of the through opening.

[0014] The rotating disc is provided with two through openings which are longitudinally staggered; one end of the plier head extends into the chamber of the pliers body through the through opening, and rubber sleeves are connected to the inner walls on both sides of the through opening; and the side of the rubber sleeve away from the through opening abuts against the outer wall of the plier head.

[0015] A plug rod is further arranged in the through opening; the top end of the plug rod is connected with the inner top wall of the through opening, and the bottom end of the plug rod is connected with the inner bottom wall of the through opening; and the outer wall of the plier head is rotationally connected with the outer wall of the plug rod.

[0016] Further, one end of each of the two handles is hingedly connected with one end of the pliers body.

[0017] The pliers body is further provided with a transmission mechanism which at least comprises a connecting rod arranged in the chamber; the connecting rod is coaxially arranged with the pliers body; one end of the connecting rod is connected with the rotating disc, and the other end is rotationally connected with the inner wall of the chamber; push rods are arranged on the left and right sides of the connecting rod; and one end of the push rod abuts against the handle through the pliers body.

[0018] The connecting rod and the chamber are connected with a gear transmission member which cooperates with the connecting rod; screw grooves which are threadedly connected with the gear transmission member are arranged on the outer wall of the push rod; the screw grooves are oppositely threaded; when the handle is rotated and the push rod is pushed to move towards the chamber, the screw grooves drive the gear transmission member to drive the connecting rod to rotate, and the connecting rod drives the rotating disc and the plier head to rotate together.

[0019] One end of the connecting rod is provided with a sliding groove, and the sliding groove is provided through the top and bottom; and the support rod is slidingly arranged in the sliding groove.

[0020] Further, the gear transmission member further comprises,

[0021] Two first tooth rings are respectively arranged on the left and right sides of the connecting rod, and the axial direction of the first tooth ring coincides with the axial direction of the push rod.

[0022] The second tooth ring is fixedly sleeved on the outer wall of the connecting rod, and a toothed belt is connected between the second tooth ring and the two first tooth rings;

[0023] The inner wall of the chamber is rotationally connected with two support members, and the end of the support member away from the chamber is connected with the outer wall of the first tooth ring.

[0024] Further, the jaw body is further provided with two through grooves which are parallel and located on the left and right sides of the connecting rod;

[0025] The through groove is provided with a rotating rod, one end of the rotating rod is connected with the inner bottom wall of the through groove, and the other end is connected with the inner top wall of the through groove. One end of the handle is provided with a hinge shaft, the hinge shaft extends into the through groove and is rotationally connected with the outer wall of the rotating rod.

[0026] The handle is further provided with a slope at one end, and the slope is connected with the right end of the hinge shaft, and the right end of the hinge shaft is parallel to the outer wall of the jaw body.

[0027] The end of the push rod extending to the outside of the jaw body abuts against the slope.

[0028] Further, the transmission mechanism further comprises a ratchet wheel arranged in the first tooth ring, and the axial direction of the ratchet wheel coincides with the axial direction of the first tooth ring.

[0029] The first tooth ring is circumferentially provided with an annular groove, and the orthographic projection area of the ratchet wheel along the axial direction of the first tooth ring covers at least the annular opening area of the annular groove.

[0030] Further, the transmission mechanism further comprises two pawls arranged in the annular groove, and one end of the pawl is rotationally connected with the inner wall of the annular groove through a rotating shaft.

[0031] The ratchet teeth on the ratchet wheel are provided with an inclined surface and a vertical surface, the outer wall of the pawl abuts against the inclined surface, the threaded groove is threadedly connected with the ratchet wheel, and the ratchet teeth on the two ratchet wheels are opposite to each other.

[0032] Further, one end of the jaw body is provided with two inner cavities and two insertion holes located at the front and rear ends of the inner cavities, the inner cavities are communicated with the insertion holes, the diameter of the inner cavities is larger than the diameter of the insertion holes, one of the insertion holes corresponds to the slope, and the other insertion hole is communicated with the chamber, and the push rod passes through the insertion hole and the inner cavity and abuts against the slope.

[0033] Further, the inner cavity is further provided with a spring, the spring is sleeved on the periphery of the push rod, one end of the spring is connected with the outer wall of the push rod, and the other end abuts against the inner wall of the inner cavity.

[0034] The support member is axially provided with a through hollow groove, and the threaded groove is located in the hollow groove and has a gap between the threaded groove and the insertion hole.

[0035] Further, one end of the pull rod is connected with the connecting rod and the outer wall of the rotating disc, the supporting rod is installed on the outer wall of the pull rod, the pull rope is arranged between the two handles, one end of the pull rope is connected with the pull rod outside the handle, and the pull rope is used to drive the pull rod and the supporting rod to move when the pull rope is pulled.

[0036] Further, one end of the pull rod is connected with the connecting rod and the outer wall of the rotating disc, the supporting rod is installed on the outer wall of the pull rod, the pull rope is arranged between the two handles, one end of the pull rope is connected with the pull rod outside the handle, and the pull rope is used to drive the pull rod and the supporting rod to move when the pull rope is pulled.

[0037] Further, one end of the pull rod is connected with the connecting rod and the outer wall of the rotating disc, the supporting rod is installed on the outer wall of the pull rod, the pull rope is arranged between the two handles, one end of the pull rope is connected with the pull rod outside the handle, and the pull rope is used to drive the pull rod and the supporting rod to move when the pull rope is pulled.

[0038] Compared with the prior art, the present application has the following advantages:

[0039] 1. In the present application, when operating, the pull rod is pulled outward to drive the supporting rod to translate, when the supporting rod is pulled away from the rotating disc, the supporting rod pushes the strip-shaped plate to swing, and then the inner end of the handle is pushed open to the two sides of the supporting rod, at this time, the outer end of the handle is closed to clamp the tissue, after clamping, rotating the pull rod can synchronously drive the supporting rod, the strip-shaped plate and the rotating disc, the overall angle of the handle is adjusted, the clamping and overturning are completed while the clamping function is maintained, the wrist is not greatly moved, and the operation stability and flexibility are ensured.

[0040] 2. In the present application, when the fingers are inwardly tightened, the right handle is inclined along the slope direction to push the corresponding push rod to make the handle turn right, when the fingers are outwardly expanded, only the left handle can be inclined along the slope to push the other push rod to make the handle turn left, one side of the handle hinge shaft is a parallel limiting surface, the reverse swing is blocked by the handle body, the force of the push rod is ensured to be on one side each time, the linear motion of the left and right push rods can be triggered respectively by alternately pinching or expanding the handle, so that the handle is controlled to realize bidirectional rotation adjustment.

[0041] 3. In the present application, when the push rod is pushed along the thread groove, the ratchet wheel rotates, the pawl is pushed by the vertical surface of the ratchet tooth to drive the gear ring to rotate, when the push rod is pulled back, the inclined surface of the ratchet tooth slides over the pawl, the gear ring remains unchanged, the directions of the ratchet teeth of the left and right ratchet wheels are opposite, the reciprocating motion of the push rod is ensured to be on one side only, the other push rod is idle, the two push rods are linked through the synchronous belt, when the two push rods are alternately pushed, the handle is continuously rotated in the same direction, and the rotation angle of the handle is improved. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 It is a schematic view of the appearance structure of the present application;

[0043] Figure 2 It is a front view of the present application;

[0044] Figure 3 It is a schematic view of the connecting structure of the handle body and the handle in the present application;

[0045] Figure 4 Connection structure between hinge shaft and through slot in the application;

[0046] Figure 5 Connection structure between body and head of the pliers in the application;

[0047] Figure 6 Internal structure of the body of the pliers in the application;

[0048] Figure 7 Connection structure between second tooth ring and toothed belt in the application;

[0049] Figure 8 Connection structure between push rod and ratchet wheel in the application;

[0050] Figure 9 Connection structure between first tooth ring and toothed belt in the application;

[0051] Figure 10 Connection structure between first tooth ring and ratchet wheel in the application;

[0052] Figure 11 Sectional view of the first tooth ring in the application;

[0053] Figure 12 Connection structure between ratchet wheel and pawl in the application;

[0054] Figure 13 Connection structure between connecting rod and pull rod in the application;

[0055] Figure 14 Sectional view of the strip-shaped plate in the application;

[0056] Figure 15 Sectional view of the rotating disc in the application;

[0057] Figure 16 Connection structure between through opening and rubber sleeve in the application.

[0058] In the figure: 1, main body of the clamping pliers; 101, body of the pliers; 102, handle of the pliers; 1021, slope; 1022, hinge shaft; 1023, rotating rod; 1024, through slot; 103, head of the pliers; 1031, pull rod; 1032, pull rope; 1033, strip-shaped slot; 1034, intersection;

[0059] 2, transmission mechanism; 201, connecting rod; 202, push rod; 203, first tooth ring; 204, second tooth ring; 205, toothed belt; 206, support; 207, threaded groove; 208, ratchet wheel; 2081, inclined surface; 2082, vertical surface; 209, annular groove; 210, pawl; 211, rotating shaft;

[0060] 3, trigger mechanism; 301, rotating disc; 302, support rod; 303, strip plate; 304, containing groove; 305, sliding groove; 306, first fixed rod; 307, second fixed rod;

[0061] 4, through opening; 5, through hole; 6, inner cavity; 7, insertion hole; 8, spring; 9, embedded slot; 10, insertion rod; 11, rubber sleeve. DETAILED DESCRIPTION

[0062] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0063] The present application provides a technical solution:

[0064] Referring to Figures 1-16 As shown in the figure, the tumor clamping device for oral and maxillofacial surgery includes a clamping forceps main body 1, a forceps handle 102, and a forceps head 103. The clamping forceps main body 1 further includes,

[0065] A forceps body 101 is connected to the forceps head 103 at one end and to the forceps handle 102 at the other end. A chamber is formed in the forceps body 101.

[0066] A trigger mechanism 3 includes at least a support rod 302 arranged in the chamber and movable axially along the forceps body 101, and two strip plates 303. One end of the forceps body 101 is rotationally connected to a rotating disc 301. One end of the two forceps heads 103 extends into the chamber through the rotating disc 301 and is hingedly connected to one end of the strip plates 303 by a torsion spring. The other end of the strip plates 303 is rotationally connected to the support rod 302, which is used to pull the strip plates 303 to swing when the support rod 302 moves, thereby opening or closing the two forceps heads 103.

[0067] A pull rod 1031 is arranged in the chamber and coincides with the axis of the forceps body 101. One end of the pull rod 1031 is connected to the support rod 302, and the other end extends between the two forceps handles 102 through the forceps body 101.

[0068] Firstly, in the perspective view of Figure 1 It can be seen that the clamping forceps main body 1 is composed of a forceps body 101, two forceps handles 102, and two forceps heads 103. In use, firstly, the index finger and the ring finger are inserted into the finger rings on the two forceps handles 102, respectively. One end of the pull rod 1031 is located between the two forceps handles 102, and the remaining part is inserted into the chamber inside the forceps body 101. Then, the rotating disc 301 is rotated to the position shown in the figure, and the two forceps heads 103 are opened or closed by pulling the strip plates 303. Figure 5 And Figure 6In the perspective of FIG. 1, the rotating disc 301 is in transmission connection with one end of the body 101, and one end of the rotating disc 301 is located in the cavity. The two clamping heads 103 extend into the cavity through the rotating disc 301. In combination with Figure 5 As can be seen from FIG. 1, the area of the clamping head 103 outside the body 101 is wider than the area extending into the cavity. The two clamping heads 103 are staggered on the end located in the cavity, and the support rod 302 is located in the middle between the two clamping heads 103.

[0069] In the state that the support rod 302 is close to the rotating disc 301, the two clamping heads 103 on the end located in the cavity are close to each other, and thus the two clamping heads 103 on the end outside the body 101 are open and far away from each other. In combination with Figure 1 After the two clamping heads 103 cover the outside of the tumor in the oral cavity, the pull rod 1031 is pinched and pulled away from the body 101 by the thumb and the middle finger, and then Figure 6 After the pull rod 1031 is pulled by the force, the support rod 302 is pulled to move to the left. The initial position of the support rod 302 is close to the rotating disc 301. When the support rod 302 is pulled, the support rod 302 moves away from the rotating disc 301. When the support rod 302 moves, the right end of the strip-shaped plate 303 moves to the left.

[0070] Because the left end of the strip-shaped plate 303 is close to the leftmost end of the clamping head 103, when the support rod 302 is close to the rotating disc 301, the strip-shaped plate 303 is in a horizontal state from left to right as shown in Figure 6 When the right end of the strip-shaped plate 303 is pulled to the left by the support rod 302, the strip-shaped plate 303 gradually forms a horizontal state from front to back. At the same time, the end of the strip-shaped plate 303 connected with the support rod 302 rotates, and the connection point of the strip-shaped plate 303 and the clamping head 103 also rotates, so that Figure 6 In the perspective of FIG. 1, the support rod 302 can only move left and right, and cannot move forward and backward. Therefore, when the strip-shaped plate 303 gradually changes into a horizontal state from front to back, the end of the clamping head 103 located in the cavity is pushed to the left and right sides of the support rod 302, that is, the two clamping heads 103 located in the cavity are far away from each other.

[0071] After the two clamping heads 103 located in the cavity are far away from each other, the two clamping heads 103 located outside the body 101 are close to each other, thereby clamping the tumor. When the angle of the clamping head 103 clamping the tumor needs to be turned over, the pull rod 1031 is still rotated by the thumb and the middle finger. After the pull rod 1031 is rotated, the support rod 302 is rotated. Then, the support rod 302 is rotated to drive the strip-shaped plate 303, the clamping head 103 and the rotating disc 301 to rotate.

[0072] Two jaw heads 103 get rotated, wrist does not need to rotate greatly or maintain fixed posture, and meanwhile does not affect the clamping function of two jaw heads 103.

[0073] Referring to Figures 6-14 , the trigger mechanism 3 further comprises,

[0074] Two opposite sides of two jaw heads 103 are provided with accommodating grooves 304, and the second fixing rod 307 is fixedly connected in the accommodating groove 304. One end of the strip-shaped plate 303 is sleeved on the second fixing rod 307 and connected with the second fixing rod 307 through a torsion spring. The top end of the second fixing rod 307 is fixedly connected with the inner top wall of the accommodating groove 304, and the bottom end of the second fixing rod 307 is fixedly connected with the inner bottom wall of the accommodating groove 304.

[0075] Two strip-shaped plates 303 are respectively located at the top and bottom of the supporting rod 302, and the top and bottom of the supporting rod 302 are rotationally connected with the strip-shaped plate 303 through the first fixing rod 306.

[0076] From the perspective of Figure 14 , the top and bottom of the supporting rod 302 are rotationally connected with the first fixing rod 306, and one end of the upper and lower strip-shaped plates 303 is fixedly connected with the outer wall of one of the first fixing rods 306. Therefore, when one end of the strip-shaped plate 303 rotates around the supporting rod 302, the one end of the first fixing rod 306 rotates along the supporting rod 302.

[0077] The other end of the strip-shaped plate 303 is sleeved on the second fixing rod 307, and the torsion spring is located on the outer wall of the second fixing rod 307. One end of the torsion spring is fixedly connected with the outer wall of the second fixing rod 307, and the other end of the torsion spring is fixedly connected with the inner wall of the strip-shaped plate 303. Therefore, after the right end of the strip-shaped plate 303 moves to the left, the tension applied to the pull rod 1031 is released, the strip-shaped plate 303 is pushed back to the original position by the torsion spring, the right end of the strip-shaped plate 303 rotates back to the position close to the rotating disc 301, and the supporting rod 302 also moves back to the position close to the rotating disc 301.

[0078] Still from the perspective of Figure 14 , when the right end of the strip-shaped plate 303 is close to the rotating disc 301, the part of the strip-shaped plate 303 close to the second fixing rod 307 will enter the accommodating groove 304, and the accommodating groove 304 provides space for the swing of the strip-shaped plate 303.

[0079] Referring to Figures 6-16 , one end of the body 101 is also provided with a through opening 5, and the outer ring wall of the rotating disc 301 is provided with an embedded groove 9. The rotating disc 301 is inserted into the through opening 5, and the outer wall of the embedded groove 9 abuts against the inner wall of the through opening 5.

[0080] The turntable 301 has two through openings 4, which are longitudinally intersecting. One end of the pliers head 103 extends into the cavity of the pliers body 101 through the through opening 4. Rubber sleeves 11 are fixedly connected to the inner walls on both sides of the through opening 4. The side of the rubber sleeve 11 away from the through opening 4 abuts against the outer wall of the pliers head 103.

[0081] A rod 10 is also provided inside the through opening 4. The top end of the rod 10 is fixedly connected to the inner top wall of the through opening 4, and the bottom end of the rod 10 is fixedly connected to the inner bottom wall of the through opening 4. The pliers head 103 is rotatably connected to the outer wall of the rod 10.

[0082] When turntable 301 rotates, the embedded groove 9 will rotate along the inner wall of the opening 5. Figure 14 and Figure 15 As can be seen, the outer ring of the turntable 301 has an inset groove 9 with a concave ring. This makes the diameter of the edges at both ends of the turntable 301 larger than the diameter of the inset groove 9. Therefore, after the turntable 301 is inserted into the through-hole 5, the outer wall of the inset groove 9 contacts the inner wall of the through-hole 5, while the edges at both ends of the turntable 301 are outside the through-hole 5, so as to prevent the turntable 301 from easily falling out of the through-hole 5.

[0083] exist Figure 15 As can be seen, the two clamp heads 103 have protruding upper and lower parts that pass through the turntable 301, thus creating a height difference between the two clamp heads 103 inside the cavity. This height difference prevents the two ends of the clamp heads 103 from hitting each other when they come together, thereby increasing the opening angle of the clamp heads 103 outside the clamp body 101. The outer parts are at the same height and do not have a height difference, so the outer parts are responsible for clamping tumors in the oral and maxillofacial region. The protruding parts of the clamp heads 103 pass through the through opening 4 into the cavity. When the clamp heads 103 swing, they will rotate along the outer wall of the insertion rod 10.

[0084] The top of the pliers head 103 inside the through opening 4 abuts against the inner top wall of the through opening 4, and the bottom of the pliers head 103 abuts against the inner bottom wall of the through opening 4. However, there is a gap between the area inside the through opening 4 and the inner walls on the left and right sides of the through opening 4. This lateral gap provides space for the pliers head 103 to swing. The rubber sleeve 11 is located between the inner wall of the through opening 4 and the pliers head 103. When the pliers head 103 swings, it will squeeze the rubber sleeve 11. The rubber sleeve 11 is made of soft rubber, which can not only block the gap between the pliers head 103 and the two side walls of the through opening 4, but also does not affect the swing of the pliers head 103.

[0085] See Figures 1-13 One end of each of the two clamp handles 102 is hinged to one end of the clamp body 101;

[0086] The clamping forceps body 1 is further provided with a transmission mechanism 2, at least including a connecting rod 201 arranged in the cavity, the connecting rod 201 is coaxially arranged with the forceps body 101, one end of the connecting rod 201 is fixedly connected with the rotating disc 301, the other end is rotatably connected with the inner wall of the cavity, the left and right sides of the connecting rod 201 are both provided with a push rod 202, one end of the push rod 202 penetrates the forceps body 101 and abuts against the forceps handle 102;

[0087] The connecting rod 201 is connected with a matched gear transmission part on the cavity, the outer wall of the push rod 202 is fixedly connected with a threaded groove 207 matched with the gear transmission part in screw threads, the two threaded grooves 207 are opposite in screw direction, when the forceps handle 102 rotates and pushes the push rod 202 to move towards the cavity, the threaded groove 207 drives the gear transmission part to drive the connecting rod 201 to rotate, the connecting rod 201 drives the rotating disc 301 to rotate together with the forceps head 103;

[0088] One end of the connecting rod 201 is provided with a sliding groove 305, the top and bottom of the sliding groove 305 are throughly arranged, and the supporting rod 302 is slidingly arranged in the sliding groove 305.

[0089] Please pay attention to Figure 5 and Figure 6 , the forceps handle 102 is tilted to one side, the side wall of the forceps handle 102 will abut against one end of the push rod 202 outside the forceps body 101, then the continuous extrusion of the forceps handle 102 will make the push rod 202 move towards the cavity, when the push rod 202 moves together with the threaded groove 207, the threaded groove 207 penetrates the gear assembly on one side of the connecting rod 201, the gear assembly cannot move but only rotates, therefore, by the screw thread cooperation between the threaded groove 207 and the gear assembly, when the threaded groove 207 moves, the gear assembly will rotate and drive the connecting rod 201 to rotate together, after the connecting rod 201 rotates, one end will rotate along the cavity, and the other end will drive the rotating disc 301 to rotate together, so that the forceps head 103 is turned over;

[0090] At the same time, from the perspective of Figure 6 , the supporting rod 302 is located in the sliding groove 305, the side wall of the supporting rod 302 is in contact with the inner wall of the sliding groove 305, so that the supporting rod 302 will slide along the sliding groove 305 when moving, thereby improving the stability of the movement of the supporting rod 302;

[0091] From the perspective of Figure 7 , the screw directions of the two threaded grooves 207 are opposite, therefore, when the left push rod 202 moves, the gear assembly and the connecting rod 201 will rotate to the left, and when the right push rod 202 moves, the gear assembly and the connecting rod 201 will rotate to the right.

[0092] Referring to Figures 6-9 , the gear transmission part further includes,

[0093] Two first tooth rings 203 are respectively located on the left and right sides of the connecting rod 201, and the axial direction of the first tooth ring 203 coincides with the axial direction of the push rod 202;

[0094] A second tooth ring 204 is fixedly sleeved on the outer wall of the connecting rod 201, and the second tooth ring 204 is in transmission connection with the toothed belt 205 between the two first tooth rings 203;

[0095] The inner wall of the chamber is rotationally connected with two support members 206, and the end of the support member 206 away from the chamber is fixedly connected with the outer wall of the first tooth ring 203.

[0096] The second tooth ring 204 is fixedly installed on the outer wall of the connecting rod 201, the support member 206 is rotationally connected to the inner wall of the jaw body 101, and the first tooth ring 203 is supported, so that the two first tooth rings 203 and the second tooth ring 204 are on the same horizontal line at the same height, and the toothed belt 205 is arranged between the two first tooth rings 203 and the second tooth ring 204. Figure 7 As can be seen, the length of the second tooth ring 204 is longer than that of the two first tooth rings 203, the two first tooth rings 203 are staggered in front and back, the toothed belt 205 is connected between the two first tooth rings 203 and the second tooth ring 204, the first tooth ring 203 and the second tooth ring 204 are in meshing connection with the toothed belt 205, and the first tooth ring 203 and the second tooth ring 204 are in transmission connection through the toothed belt 205;

[0097] From the perspective of Figure 7 , when the left push rod 202 moves into the chamber, the left first tooth ring 203 will rotate to the left, and drive the second tooth ring 204 to rotate to the left through the toothed belt 205, at the same time, the right first tooth ring 203 and the toothed belt 205 will also rotate to the left, and when the right push rod 202 moves into the chamber, the right first tooth ring 203 will rotate to the right, because the screw grooves 207 have different screw directions, so that the user can adjust the rotating direction of the jaw head 103, so that the jaw head 103 can rotate in the left and right directions.

[0098] Referring to Figures 3-6 , the jaw body 101 further has two through grooves 1024, and the two through grooves 1024 are parallel and respectively located on the left and right sides of the connecting rod 201;

[0099] A rotating rod 1023 is arranged in the through groove 1024, one end of the rotating rod 1023 is fixedly connected with the inner bottom wall of the through groove 1024, and the other end is fixedly connected with the inner top wall of the through groove 1024, one end of the handle 102 is fixedly installed with a hinge shaft 1022, the hinge shaft 1022 extends into the through groove 1024 and is rotationally connected with the outer wall of the rotating rod 1023;

[0100] The end of the handle 102 is also provided with a slope 1021, one end of the slope 1021 is connected with the right end of the hinge shaft 1022, the right end of the hinge shaft 1022 is arranged in parallel and abuts against the outer wall of the body 101;

[0101] The end of the push rod 202 extending to the outside of the body 101 abuts against the slope 1021.

[0102] In Figure 3 , it can be seen that the slopes 1021 on the two handles 102 are in the same direction, and in combination with the Figure 4 , when the handle 102 is swung, the handle 102 is inclined towards the slope 1021, the slope 1021 is close to the direction of the push rod 202, thereby pushing the push rod 202 to move towards the chamber, when the handle 102 is swung, the hinge shaft 1022 rotates along the outer wall of the rotating rod 1023 in the through slot 1024, the side of the hinge shaft 1022 away from the slope 1021 is parallel and abuts against the outer wall of the body 101, so the handle 102 cannot be inclined towards the parallel surface;

[0103] In Figure 3 , it can be seen that the slopes 1021 on the two handles 102 are in the same direction, so the two handles 102 can only be inclined in the same direction, so when the index finger and the ring finger hook the two handles 102, the fingers are simultaneously tightened inward, the right handle 102 is inclined to the left, that is, the position between the two handles 102, and the left handle 102 is not inclined, at this time, the slope 1021 of the right handle 102 pushes the push rod 202 of the right handle 102, thereby making the head 103 rotate to the right;

[0104] Conversely, the index finger and the ring finger are away from each other, at this time, the force applied is outward, the slope 1021 of the right handle 102 is to the left, so the right handle 102 cannot be inclined outward, and the slope 1021 of the left handle 102 is to the left, so the left handle 102 can be inclined to the left, thereby pressing the push rod 202 of the left handle 102, so that the head 103 rotates to the left;

[0105] Therefore, simply speaking, the effect achieved is that the fingers pinch inward or expand outward, and only one of the two handles 102 is inclined, and then the head 103 can be alternately rotated to the left or to the right.

[0106] Referring to Figures 6-12 , the transmission mechanism 2 further comprises a ratchet wheel 208 arranged in the first tooth ring 203, the axial direction of the ratchet wheel 208 coincides with the axial direction of the first tooth ring 203;

[0107] The first tooth ring 203 is provided with an annular groove 209 around the circumference, and the orthographic projection area of the ratchet wheel 208 along the axial direction of the first tooth ring 203 at least covers the annular opening area of the annular groove 209;

[0108] Two pawls 210 are arranged in the annular groove 209, and one end of the pawl 210 is rotatably connected to the inner wall of the annular groove 209 through a rotating shaft 211.

[0109] The teeth of the ratchet wheel 208 are provided with an inclined surface 2081 and a vertical surface 2082, the outer wall of the pawl 210 abuts against the inclined surface 2081, the threaded groove 207 is threadedly connected with the ratchet wheel 208, and the teeth of the two ratchet wheels 208 are oppositely directed.

[0110] The outer wall of the ratchet wheel 208 abuts against the inner wall of the annular groove 209, Figure 10 is a view of the shape of the first tooth ring 203, and Figure 11 is a view of the first tooth ring 203 after being cut, the inner wall of the first tooth ring 203 is provided with an annular groove 209, and the ratchet wheel 208 is directly threadedly connected with the threaded groove 207. Since the position of the first tooth ring 203 is fixed, and the diameter of the ratchet wheel 208 is greater than the diameter of the outlet of the annular groove 209, the annular groove 209 plays a blocking role on the ratchet wheel 208. Thus, when the push rod 202 and the threaded groove 207 pass through the ratchet wheel 208, the ratchet wheel 208 will not move, but only rotate;

[0111] Next, from the perspective of Figure 10 and Figure 11 , it can be seen that the teeth of the two ratchet wheels 208 are oppositely directed. Thus, when the right push rod 202 and the threaded groove 207 pass through the right ratchet wheel 208 and move towards the direction of the jaw 103, the right ratchet wheel 208 will rotate to the right, and the vertical surface 2082 of the tooth of the right ratchet wheel 208 is directed to the right. Thus, after the right ratchet wheel 208 rotates to the right, the vertical surface 2082 will abut against the pawl 210, and the right first tooth ring 203 will be driven to rotate to the right through the pawl 210. Conversely, when the left push rod 202 and the threaded groove 207 pass through the left ratchet wheel 208 and move towards the direction of the jaw 103, the left first tooth ring 203 will also rotate to the left.

[0112] Since as long as one of the first tooth ring 203 rotates, the second tooth ring 204 and the other first tooth ring 203 will also rotate, taking the right first tooth ring 203 as an example, after the right first tooth ring 203 rotates to the right, the left first tooth ring 203 will also rotate to the right, but the vertical surface 2082 of the left ratchet is leftward, so after the left first tooth ring 203 rotates to the right, it will push the left ratchet 208 to rotate through the pawl 210, because the left push rod 202 is in contact with the handle 102 at this time and cannot move, so the ratchet 208 will make the left push rod 202 rotate in place through the threaded groove 207, because when the left push rod 202 moves towards the pliers head 103, the left ratchet 208 rotates to the left, so when the left ratchet 208 rotates to the right, the left push rod 202 should move towards the handle 102, but the left push rod 202 is in contact with the handle 102 and cannot move towards the handle 102, so the left push rod 202 rotates in place;

[0113] Then back to the right ratchet 208, it is known that when the right push rod 202 moves towards the pliers head 103, the right ratchet 208 will rotate to the right through the threaded groove 207, and then push the pawl 210 and the first tooth ring 203 to rotate to the right through the vertical surface 2082, and then pull the push rod 202 back towards the handle 102, the right ratchet 208 will rotate to the left, but when the ratchet 208 rotates to the left, the inclined surface 2081 of the ratchet will pass through the bottom surface of the pawl 210 and will not push the pawl 210, so it will not push the first tooth ring 203 to move to the left, so that the right push rod 202 and the threaded groove 207 can be repeatedly moved and pulled back, and the user can continuously push and pull out the push rod 202, so that the right first tooth ring 203 can continuously rotate to the right, thereby increasing the angle of rotation of the pliers head 103;

[0114] Conversely, to the left ratchet 208, when the left push rod 202 moves towards the pliers head 103 through the threaded groove 207, the left ratchet 208 will rotate to the left, and then push the pawl 210 through the vertical surface 2082 on the ratchet, and then make the left first tooth ring 203 rotate to the left, and then drive the second tooth ring 204 and the connecting rod 201 to rotate through the toothed belt 205, at this time the right first tooth ring 203 will also rotate to the left, and the right push rod 202 will also rotate in place, because when the right push rod 202 moves towards the handle 102, the right ratchet 208 will rotate to the left, and the right push rod 202 is in contact with the handle 102 at this time, so the right first tooth ring 203 and the ratchet 208 will rotate to the left, and the right push rod 202 will rotate in place;

[0115] When the left push rod 202 and the threaded groove 207 are pulled back towards the handle 102, the left ratchet 208 rotates to the right, and the inclined surface 2081 of the left ratchet 208 also passes the bottom surface of the left pawl 210, so the left first tooth ring 203 cannot be driven to rotate to the right, and the second tooth ring 204 cannot be driven to rotate to the right when the left push rod 202 and the threaded groove 207 are pulled back towards the handle 102, and the second tooth ring 204 cannot be driven to rotate to the left when the right push rod 202 and the threaded groove 207 are pulled back towards the handle 102.

[0116] The pitch angle of the threaded groove 207 is greater than 15 degrees, so the helical slope of the threaded groove 207 is relatively steep, so that when the threaded groove 207 moves and passes through the ratchet 208, the normal pressure of the threaded teeth of the threaded groove 207 on the threaded hole of the ratchet 208 will generate a significant tangential component, forcing the ratchet 208 to rotate around the axis, because if the pitch of the threaded groove 207 is too small, the friction between the threaded groove 207 and the internal threads of the threaded hole will cancel out the axial thrust, preventing the threaded groove 207 and the push rod 202 from moving axially.

[0117] Referring to Figure 8 , one end of the body 101 is provided with two inner cavities 6 and two insertion holes 7 located at the front and rear ends of the inner cavities 6, the inner cavities 6 and the insertion holes 7 are in communication, and the diameter of the inner cavities 6 is greater than the diameter of the insertion holes 7, one of the insertion holes 7 corresponds to the slope 1021, and the other insertion hole 7 is in communication with the chamber, the push rod 202 passes through the insertion hole 7 and the inner cavity 6 and abuts against the slope 1021;

[0118] The inner cavity 6 is also provided with a spring 8, the spring 8 is sleeved on the outer periphery of the push rod 202, one end of the spring 8 is fixedly connected with the outer wall of the push rod 202, and the other end abuts against the inner wall of the inner cavity 6;

[0119] The support 206 is provided with a through hollow slot in the axial direction, and the threaded groove 207 is located in the hollow slot and has a gap between the insertion hole 7.

[0120] As can be seen in Figure 8 , the threaded groove 207 has a gap between the insertion hole 7, so that the threaded groove 207 will not pass through the insertion hole 7 when the push rod 202 moves, and the push rod 202 will only move within the distance between the threaded groove 207 and the insertion hole 7, the push rod 202 passes through the insertion hole 7 and the inner cavity 6, and the diameter of the spring 8 is greater than the insertion hole 7, so the spring 8 cannot move out through the insertion hole 7, the left end of the spring 8 is fixedly connected with the outer wall of the push rod 202, and when the push rod 202 moves towards the first tooth ring 203, the left end of the spring 8 moves towards the right end, and the right end of the spring 8 abuts against the inner wall of the inner cavity 6, so the spring 8 is squeezed and shrunk;

[0121] When the handles 102 loosen the extrusion on the push rod 202, the spring 8 will rebound and pull the push rod 202 back to the original position, thus achieving the automatic reset of the push rod 202. It is worth noting that the end of the spring 8 not connected with the push rod 202 is not connected with the inner cavity 6, thus not affecting the rotation of the push rod 202.

[0122] Figure 8 The support 206 in the cross-sectional view can be seen as hollow inside. When the push rod 202 moves with the threaded groove 207, the push rod 202 also moves in the hollow groove of the support 206 without contacting the support 206. Since the support 206 is used to support the first tooth ring 203, when the first tooth ring 203 rotates, the end of the support 206 connected with the body 101 also rotates along the inner wall of the body 101.

[0123] The one-way movement distance of the push rod 202 is limited. When the push rod 202 moves towards the first tooth ring 203, the left end of the push rod 202 will not enter the insertion hole 7 completely, and the end of the push rod 202 outside the body 101 will still be exposed outside the insertion hole 7.

[0124] Referring to Figures 1-13 , one end of the pull rod 1031 is inserted into the connecting rod 201 and abuts against the outer wall of the rotating disc 301. The support rod 302 is fixedly installed on the outer wall of the pull rod 1031. The two handles 102 are provided with a pull rope 1032. One end of the pull rope 1032 is fixedly connected with the end of the pull rod 1031 outside the body 101, for pulling the pull rope 1032 to drive the pull rod 1031 and the support rod 302 to move together.

[0125] The index finger and the ring finger are used to hook the two handles 102, and the middle finger can pull the pull rope 1032 to pull away from the pliers head 103. The pull rope 1032 is pulled at the same time, and the pull rod 1031 is pulled to move the support rod 302 through the pull rod 1031. When the pull force on the pull rope 1032 is loosened, the pull rod 1031 and the support rod 302 also rebound to the original position through the torsional spring.

[0126] Referring to Figures 1-2 , the end of the pull rope 1032 away from the pull rod 1031 is crossed to form a cross portion 1034. The end of the pull rope 1032 away from the cross portion 1034 is fixedly connected with the pull rod 1031 again, forming a ring-shaped closed pull rope 1032.

[0127] The two handles 102 correspondingly have a strip-shaped embedded groove 1033. Part of the pull rope 1032 is embedded in the strip-shaped embedded groove 1033.

[0128] In Figure 2As can be seen, the pull rope 1032 is wound into a loop, and the two side areas of the pull rope 1032 are respectively in the two strip-shaped embedding grooves 1033, so that the pull rope 1032 is prevented from falling due to gravity, and the position of the pull rope 1032 is maintained between the two handles 102, the middle finger is inserted into the loop of the intersection 1034 and hooks the intersection of the pull rope 1032 and the intersection 1034, and then the pull rope 1032 is pulled, when the pull rope 1032 is pulled, the two side areas of the pull rope 1032 are also pulled out of the strip-shaped embedding grooves 1033;

[0129] The diameter of the strip-shaped embedding groove 1033 is smaller than the diameter of the pull rope 1032, so that the pull rope 1032 is not easily pulled out after being inserted into the strip-shaped embedding groove 1033, the pull rope 1032 is divided into two loops by the intersection 1034, the fingers are inserted into the two loops to hook the intersection 1034, and the two loops formed by the intersection form double contact points on the fingers, which can reduce the pulling force on the local area of the fingers, reduce the discomfort of hand squeezing, and enhance the stability.

Claims

1. A tumor clamping device for oral and maxillofacial surgery, comprising a clamping forceps main body (1), a forceps handle (102) and a forceps head (103), characterized in that, The clamping forceps body (1) further comprises, The forceps body (101) is connected with the forceps handle (102) at one end and connected with the forceps head (103) at the other end, and a chamber is formed in the forceps body (101); The trigger mechanism (3) comprises at least a support rod (302) arranged in the chamber and movable along the forceps body (101) in the axial direction, and two strip-shaped plates (303), one end of the forceps body (101) is rotationally connected with a rotating disc (301), one end of the two forceps heads (103) extends into the chamber through the rotating disc (301) and is hingedly connected with one end of the strip-shaped plate (303) through a torsion spring, the other end of the strip-shaped plate (303) is rotationally connected with the support rod (302), and the strip-shaped plate (303) is used to pull and swing when the support rod (302) moves, so as to separate or pull together the two forceps heads (103); The pull rod (1031) is arranged in the chamber and coincides with the axis of the forceps body (101), one end of the pull rod (1031) is connected with the support rod (302), and the other end extends to between the two forceps handles (102) through the forceps body (101); The area of the forceps head (103) outside the forceps body (101) is wider than the area extending in the chamber, and the two forceps heads (103) are staggered up and down at one end in the chamber, and the support rod (302) is located at the middle position between the two forceps heads (103); When the support rod (302) is close to the rotating disc (301), the two forceps heads (103) at one end in the chamber are close to each other, after the two forceps heads (103) cover the outside of the tumor in the oral cavity, the thumb and the middle finger pinch the pull rod (1031) and pull it away from the forceps body (101), the pull rod (1031) is pulled and the support rod (302) moves to the left, the initial position of the support rod (302) is close to the rotating disc (301), when the support rod (302) is pulled, the support rod (302) moves away from the rotating disc (301), and the support rod (302) moves to the left and drives the right end of the strip-shaped plate (303) to move to the left; The left end of the strip-shaped plate (303) is close to the leftmost end of the forceps head (103), when the strip-shaped plate (303) is pulled, the transverse state from left to right gradually forms a transverse state from front to back, and the two forceps heads (103) at one end in the chamber are away from each other; After the two forceps heads (103) at one end in the chamber are away from each other, the two forceps heads (103) at one end outside the forceps body (101) are close to each other, so as to clamp the tumor, then when the angle of the forceps head (103) clamping the tumor needs to be turned over, the thumb and the middle finger still rotate the pull rod (1031), the pull rod (1031) rotates and drives the support rod (302) to rotate, and then the support rod (302) rotates and drives the strip-shaped plate (303), the forceps head (103) and the rotating disc (301) to rotate.

2. The tumor clamping device according to claim 1, wherein: The trigger mechanism (3) further comprises, Two opposite sides of the two jaws (103) are provided with accommodating grooves (304), and the second fixing rods (307) are connected in the accommodating grooves (304); one end of the strip-shaped plate (303) is sleeved on the second fixing rod (307) and connected with the second fixing rod (307) through a torsion spring; The two strip-shaped plates (303) are respectively located at the top and bottom of the supporting rod (302), and the top and bottom of the supporting rod (302) are rotationally connected with the strip-shaped plates (303) through the first fixing rods (306).

3. The tumor clamping device according to any one of claims 1 to 2, wherein: One end of the jaw body (101) is also provided with a through opening (5), and the outer ring wall of the rotating disc (301) is provided with an embedded groove (9); the rotating disc (301) is inserted into the through opening (5), and the outer wall of the embedded groove (9) abuts against the inner wall of the through opening (5); The rotating disc (301) is provided with two through openings (4) penetrating through, the two through openings (4) are longitudinally staggered, one end of the jaw (103) extends into the cavity of the jaw body (101) through the through opening (4), the inner walls on the two sides of the through opening (4) are connected with rubber sleeves (11), and the side, away from the through opening (4), of the rubber sleeve (11) abuts against the outer wall of the jaw (103); The through opening (4) is also provided with an insertion rod (10), the top end of the insertion rod (10) is connected with the inner top wall of the through opening (4), the bottom end of the insertion rod (10) is connected with the inner bottom wall of the through opening (4), and the outer wall of the insertion rod (10) is rotationally connected with the jaw (103).

4. The tumor clamping device according to claim 3, wherein: One end of each of the two jaw handles (102) is hingedly connected with one end of the jaw body (101); The clamping forceps body (1) is also provided with a transmission mechanism (2) comprising at least a connecting rod (201) arranged in the cavity, the connecting rod (201) is coaxially arranged with the jaw body (101), one end of the connecting rod (201) is connected with the rotating disc (301), the other end is rotationally connected with the inner wall of the cavity, the left and right sides of the connecting rod (201) are provided with push rods (202), one end of the push rod (202) penetrates through the jaw body (101) and abuts against the jaw handle (102); The connecting rod (201) is connected with a gear transmission member matched thereon, the outer wall of the push rod (202) is connected with a threaded groove (207) threadedly matched with the gear transmission member, the two threaded grooves (207) are oppositely threaded, when the jaw handle (102) rotates and pushes the push rod (202) to move towards the cavity, the threaded groove (207) drives the gear transmission member to drive the connecting rod (201) to rotate, the connecting rod (201) drives the rotating disc (301) and the jaw (103) to rotate together; One end of the connecting rod (201) is provided with a sliding groove (305), and the top and bottom of the sliding groove (305) are penetratingly arranged; the supporting rod (302) is slidingly arranged in the sliding groove (305).

5. The oral surgery tumor clamping device according to claim 4, wherein: The gear transmission member further comprises, Two first tooth rings (203) are respectively located at the left and right sides of the connecting rod (201), and the axial direction of the first tooth ring (203) coincides with the axial direction of the push rod (202); The second tooth ring (204) is fixedly sleeved on the outer wall of the connecting rod (201), and the second tooth ring (204) is in transmission connection with the two first tooth rings (203) through the toothed belts (205); The inner wall of the chamber is rotationally connected with two support members (206), and the end, away from the chamber, of the support member (206) is connected with the outer wall of the first tooth ring (203).

6. The oral surgery tumor clamping device according to claim 5, wherein: The jaw body (101) is further provided with two through grooves (1024) which are arranged in parallel and located on the left and right sides of the connecting rod (201); The through groove (1024) is provided with a rotating rod (1023), one end of the rotating rod (1023) is connected with the inner bottom wall of the through groove (1024), the other end is connected with the inner top wall of the through groove (1024), one end of the jaw handle (102) is provided with a hinge shaft (1022), the hinge shaft (1022) extends into the through groove (1024) and is rotationally connected with the outer wall of the rotating rod (1023); One end of the jaw handle (102) is further provided with an inclined slope (1021), one end of the inclined slope (1021) is connected with the right end of the hinge shaft (1022), the right end of the hinge shaft (1022) is arranged in parallel and abuts against the outer wall of the jaw body (101); The end, extending out of the jaw body (101), of the push rod (202) abuts against the inclined slope (1021).

7. The oral surgery tumor clamping device according to claim 6, wherein: The transmission mechanism (2) further comprises a ratchet wheel (208) arranged in the first tooth ring (203), the axial direction of the ratchet wheel (208) coincides with the axial direction of the first tooth ring (203); The first tooth ring (203) is circumferentially provided with an annular groove (209), and the orthographic projection area of the ratchet wheel (208) along the axial direction of the first tooth ring (203) at least covers the annular opening area of the annular groove (209); The transmission mechanism (2) further comprises two pawls (210) arranged in the annular groove (209), one end of the pawl (210) is rotationally connected with the inner wall of the annular groove (209) through a rotating shaft (211); The ratchet teeth on the ratchet wheel (208) are provided with an inclined surface (2081) and a vertical surface (2082), the outer wall of the pawl (210) abuts against the inclined surface (2081), the threaded groove (207) is threadedly connected with the ratchet wheel (208), and the ratchet teeth on the two ratchet wheels (208) are oppositely directed.

8. The tumor clamping device according to claim 7, wherein: One end of the jaw body (101) is provided with two inner cavities (6) and jack plugs (7) located at the front and rear ends of the inner cavities (6), the inner cavities (6) are in communication with the jack plugs (7), the diameter of the inner cavities (6) is larger than the diameter of the jack plugs (7), one of the jack plugs (7) corresponds to the inclined slope (1021), and the other jack plug (7) is in communication with the chamber, the push rod (202) abuts against the inclined slope (1021) through the jack plug (7) and the inner cavity (6); The inner cavity (6) is further provided with a spring (8), the spring (8) is sleeved on the outer periphery of the push rod (202), one end of the spring (8) is connected with the outer wall of the push rod (202), and the other end abuts against the inner wall of the inner cavity (6); The support member (206) is axially provided with a through hollow groove, and the threaded groove (207) is located in the hollow groove and has a gap between the threaded groove (207) and the jack plug (7).

9. The oral surgery tumor clamping device according to claim 8, wherein: One end of the pull rod (1031) is connected with the outer wall of the rotating disc (301) through the connecting rod (201), the support rod (302) is installed on the outer wall of the pull rod (1031), the two handles (102) are provided with the pull rope (1032), one end of the pull rope (1032) is connected with the pull rod (1031) at the end outside the body (101), when the pull rope (1032) is pulled, the pull rod (1031) and the support rod (302) are driven to move together.

10. The tumor clamping device according to claim 9, wherein: The end of the pull rope (1032) away from the pull rod (1031) is crossed to form a cross part (1034), the end of the pull rope (1032) away from the cross part (1034) is reconnected with the pull rod (1031), and the pull rope (1032) is formed in a ring shape. The corresponding surface of the two handles (102) is provided with a strip-shaped embedding groove (1033), and the partial area of the pull rope (1032) is embedded in the strip-shaped embedding groove (1033).

Images