Operating bed rail clamping device

Abstract

The invention provides an operating bed rail clamping device, and relates to the technical field of medical instruments, the operating bed rail clamping device comprises a guide rail clamping frame, a guide rail clamping frame, a guide rail, a guide rail, a guide rail, a guide rail and a guide rail, the guide rail clamping frame is provided with a base plate and two clamping seats, the two clamping seats are respectively arranged at two opposite ends of the base plate, each clamping seat is internally provided with a mounting groove, and notches of the two mounting grooves are oppositely arranged; the two pressing blocks are arranged in the two mounting grooves in a sliding mode respectively, and each pressing block is provided with a pressing plane capable of protruding out of the corresponding groove opening. The two ends of the pushing plate extend into the mounting grooves correspondingly, and the end of the pushing plate is in sliding fit with the corresponding pressing block to form a wedge mechanism. The limiting cam is rotatably installed on the base plate, the rotating axis of the limiting cam is parallel to the pushing plate, the curved surface contour of the limiting cam abuts against the pushing plate, and when the limiting cam rotates, the pushing plate pushes the two pressing blocks to synchronously move in the opposite direction. According to the operating bed rail clamping device, a surgical robot can be conveniently installed.

Description

Technical Field

[0001] The invention relates to a clamp, in particular to a clamping device for an operating table track. Background Art

[0002] At present, interventional surgery or other surgeries are often assisted by surgical robots. During the operation, the interventional surgical robot needs to be fixed on the operating table and the operating table rails on its side so that the end actuator of the surgical robot can move with the operating table when the operating table moves.

[0003] However, the specifications and structures of existing operating tables and the operating table rails on their sides are not uniform. Different connection structures are required for operating tables and operating table rails of different specifications in order to fix the surgical robot on the operating table.

[0004] In view of this, the inventor has designed a surgical table rail clamping device based on many years of production design experience in this field and related fields and after repeated experiments, in order to solve the problems existing in the prior art. Summary of the invention

[0005] The object of the present invention is to provide an operating table rail clamping device which can adapt to operating table rails of different specifications and facilitate the installation of a surgical robot.

[0006] In order to achieve the above-mentioned object, the present invention provides a surgical bed rail clamping device, wherein the surgical bed rail clamping device comprises:

[0007] The guide rail clamping frame comprises a base plate and two clamping seats, wherein the two clamping seats are respectively arranged at opposite ends of the base plate, each clamping seat has a mounting groove, and the notches of the two mounting grooves are arranged opposite to each other;

[0008] Two pressing blocks are slidably disposed in the two mounting grooves, and each of the pressing blocks has a pressing plane that can protrude from the groove;

[0009] A push plate, both ends of which extend into the mounting grooves respectively, and an inclined wedge mechanism is formed between the end of the push plate and the corresponding pressing block;

[0010] The limiting cam is rotatably mounted on the base plate, the rotation axis of the limiting cam is parallel to the pushing plate, and the curved surface profile of the limiting cam abuts against the pushing plate. When the limiting cam rotates, the pushing plate pushes the two clamping blocks to move toward each other synchronously.

[0011] Compared with the prior art, the present invention has the following characteristics and advantages:

[0012] The operating table rail clamping device proposed in the present invention quickly pushes the push plate to move through the limit cam, and the push plate and the clamping block transmit force through the inclined contact, thereby driving the two clamping blocks to move toward each other and clamp the operating table rail, so that it can be quickly installed on the operating table.

[0013] The operating table rail clamping device proposed in the present invention transmits force through an inclined wedge mechanism, and can apply a greater clamping force to the operating table rail. The clamping block cooperates with the operating table rail through a clamping plane, and no scratches are generated during clamping, and no damage is caused to the operating table rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the figures are only schematic, used to help understand the present invention, and are not specifically limited to the shapes and proportional dimensions of the various components of the present invention. Those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to the teachings of the present invention.

[0015] Figure 1 It is a three-dimensional diagram of the operating table rail clamping device of the present invention;

[0016] Figure 2 It is a structural schematic diagram of the substrate in the present invention;

[0017] Figure 3 It is a structural schematic diagram of the propulsion plate in the present invention;

[0018] Figure 4 It is a structural schematic diagram of the compression block in the present invention;

[0019] Figure 5 This is an exploded schematic diagram of the operating table rail clamping device proposed by the present invention;

[0020] Figure 6 It is a schematic structural diagram of the limit cam in the present invention.

[0021] Description of Reference Numerals

[0022] 100. Operating table rail clamping device; 10. Guide rail clamping frame;

[0023] 11. Base plate; 111. Installation window;

[0024] 112. Mounting strip hole; 113. Threaded hole;

[0025] 12. Clamping seat; 121. Connecting plate;

[0026] 122. front baffle; 123. first installation position of first guide rail slider assembly;

[0027] 124. A first mounting position of a second guide rail slider assembly; 125. A first mounting groove of an elastic reset member;

[0028] 20. Pressing block; 21. Pressing plane;

[0029] 22. First guide rail slider assembly; 23. Elastic reset member;

[0030] 24. The second installation position of the first guide rail slider assembly; 25. The elastic member resets the second installation groove;

[0031] 26. First inclined plane;

[0032] 30. Propelling plate; 31. End;

[0033] 311, second inclined surface; 312, second installation position of second guide rail slider assembly;

[0034] 32. Second guide rail slider assembly; 40. Limit cam;

[0035] 41. handle; 42. mounting cavity;

[0036] 43. Elastic plunger installation position; 50. Installation shaft;

[0037] 51. Adjusting bolt; 52. Bearing;

[0038] 53. Elastic retaining ring for shaft; 60. Locking structure;

[0039] 61. Elastic plunger; 62. Locking hole;

[0040] 70. Cam bearing; 71. Mounting nut;

[0041] 80. Side roller; 81. Tablet pressing;

[0042] 200. Operating table guide rails. DETAILED DESCRIPTION

[0043] The details of the present invention can be more clearly understood with reference to the accompanying drawings and the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are only used for the purpose of explaining the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should all be considered to belong to the scope of the present invention.

[0044] like Figures 1 to 6As shown, the present invention proposes a surgical bed rail clamping device 100, which includes a guide rail clamping frame 10, two clamping blocks 20, a push plate 30 and a limit cam 40. The guide rail clamping frame 10 has a base plate 11 and two clamping seats 12. The two clamping seats 12 are respectively arranged at opposite ends of the base plate 11. Each clamping seat 12 has a mounting groove, and the notches of the two mounting grooves are arranged oppositely; the two clamping blocks 20 are respectively movably arranged in the two mounting grooves, and each clamping block 20 respectively have a clamping plane 21 that can protrude from the slot; the two ends of the push plate 30 extend into the two mounting grooves respectively, and the end 31 of the push plate 30 and the corresponding clamping block 20 slide together to form an inclined wedge mechanism; the limit cam 40 can be rotatably installed on the base plate 11, the rotation axis of the limit cam 40 is parallel to the push plate 30, and the curved contour of the limit cam 40 abuts against the push plate 30. When the handle 41 of the limit cam 40 is rotated, the push plate 30 pushes the two clamping blocks 20 to move synchronously toward each other.

[0045] The operating bed rail clamping device 100 proposed in the present invention quickly pushes the push plate 30 to move through the limit cam 40. The push plate 30 and the clamping block 20 transmit force through the inclined contact, thereby driving the two clamping blocks 20 to move toward each other and clamp the operating bed guide rail 200, so that the base plate 11 can be quickly installed on the operating bed.

[0046] The operating bed rail clamping device 100 proposed in the present invention transmits force through the inclined wedge mechanism composed of the pushing plate 30 and the clamping block 20, and can apply a greater clamping force to the operating bed guide rail 200. The clamping planes 21 of the two clamping blocks 20 are arranged in parallel. The clamping blocks 20 cooperate with the operating bed guide rail 200 through the clamping planes 21. No scratches will be generated during clamping, and no damage will be caused to the operating bed guide rail 200.

[0047] In an optional example of the present invention, the pressing block 20 is a wedge-shaped block having a first inclined surface 26 corresponding to the pushing plate 30, and an end 31 of the pushing plate 30 is provided with a second inclined surface 311 corresponding to the pressing block 20. The first inclined surface 26 and the second inclined surface 311 are slidably matched, and when the pushing plate 30 moves, the pressing block 20 rises or falls along the second inclined surface 311.

[0048] In an optional embodiment of the present invention, a mounting window 111 is provided on the base plate 11 to be aligned with the limit cam 40, a mounting shaft 50 is provided at the mounting window 111, the mounting shaft 50 is parallel to the push plate 30, and the mounting shaft 50 and the push plate 30 are respectively located on the outside and inside of the mounting window 111, a mounting cavity 42 is provided on the limit cam 40, and the mounting shaft 50 is rotatably inserted into the mounting cavity 42. With the above structure, the mounting shaft 50 is the rotation axis of the limit cam 40, and the limit cam 40 passes through the mounting window 111. When the limit cam 40 rotates around the mounting shaft 50, the curved profile of the limit cam 40 pushes the push plate 30 to move, and when the limit cam 40 stops rotating, the push plate 30 and the two pressing blocks 20 are also in a stationary state.

[0049] In an optional example of this embodiment, the limit cam 40 is further provided with a handle 41 for driving the limit cam 40 to rotate, and a locking structure 60 is provided between the handle 41 and the guide rail clamping frame 10. The operator rotates the limit cam 40 through the handle 41 to achieve the clamping and loosening of the two clamping blocks 20. When the push plate 30 moves to a predetermined position, the two clamping blocks 20 clamp the operating bed guide rail 200, and then the position of the handle 41 and the guide rail clamping frame 10 is fixed by the locking structure 60, so as to achieve the locking of the operating bed track.

[0050] Furthermore, two clamping seats 12 are arranged on one side (inner side) of the base plate 11, and the mounting shaft 50 and the handle 41 are arranged on the other side (outer side) of the base plate 11 to facilitate the operation of the operator.

[0051] In an optional example, the locking structure 60 includes an elastic plunger 61 and a locking hole 62, the handle 41 has an elastic plunger mounting position 43, the elastic plunger 61 is arranged on the elastic plunger mounting position 43, the locking hole 62 is opened on the guide rail clamping frame 10, and the elastic plunger 61 can be inserted into the locking hole 62. After the elastic plunger 61 is inserted into the locking hole 62, the elastic plunger 61 and the locking hole 62 are contacted by force, the handle 41 is in a locked state, and a continuous non-loose pressure can be achieved, and the position of the limit cam 40 and the push plate 30 can also maintain a locked state.

[0052] In an optional example of this embodiment, the base plate 11 is vertically arranged, the two clamping seats 12 are arranged on the same surface of the base plate 11 and are respectively located at the top and bottom ends of the base plate 11, the two clamping blocks 20 are respectively located above and below the operating bed guide rail 200, the mounting shaft 50 is installed on the other side of the base plate 11 and is horizontally arranged, the limit cam 40 is sleeved on the outside of the mounting shaft 50 and rotatably cooperates with the mounting shaft 50, the limit cam 40 passes through the mounting window 111 along the radial direction of the limit cam 40, the limit cam 40 is perpendicular to the thrust plate 30, and the outer edge of the limit cam 40 is against the thrust plate 30, and when the limit cam 40 is in the clamped state, the handle 41 is in a vertical state. The locking hole 62 is opened at the bottom of the clamping seat 12, the elastic pin of the elastic plunger 61 is in a vertical state, and the top of the elastic pin extends into the locking hole 62. At this time, the distance between the clamping contact surface and the rotation axis of the limit cam 40 is between the maximum distance and the minimum distance, and the limit cam 40 has a tendency to bounce up under the action of force.

[0053] In an optional example of this embodiment, both ends of the mounting shaft 50 are fixedly connected to the base plate 11 by adjusting bolts 51. Specifically, the base plate 11 is provided with threaded holes 113 that are aligned with the adjusting bolts 51, and both ends of the mounting shaft 50 are provided with mounting holes. One end of the adjusting bolt 51 has a nut, and the other end of the adjusting bolt 51 passes through the mounting hole and is screwed into the threaded hole 113. By rotating the adjusting bolt 51, the length of the adjusting bolt 51 screwed into the threaded hole 113 can be changed, thereby adjusting the distance between the mounting shaft 50 and the base plate 11, adjusting the pushing distance of the push plate 30 when the limit cam 40 rotates, and finally adjusting the clamping position of the two clamping blocks 20, so that the distance between the two clamping blocks 20 can be adjusted to adapt to different sizes of operating table guide rails 200.

[0054] In an optional example of this embodiment, the limit cam 40 and the mounting shaft 50 are rotatably connected via a bearing 52 and a shaft elastic retaining ring 53 .

[0055] In an optional embodiment of the present invention, two cam bearings 70 are rotatably disposed in each mounting groove, and the two cam bearings 70 are respectively located on both sides of the clamping block 20. The cam bearing 70 is disposed perpendicular to the base plate 11, and a portion of the outer edge of the cam bearing 70 can protrude from the notch of the mounting groove. The cam bearing 70 is used to contact the operating bed guide rail 200 and bear gravity when the limit cam 40 is unlocked.

[0056] In an optional example of this embodiment, the cam bearing 70 is rotatably mounted on the base plate 11 through a mounting nut 71. A mounting bar hole 112 is provided on the base plate 11. One end of the cam bearing 70 passes through the mounting bar hole 112 and the mounting nut 71 and is threadedly connected to the mounting nut 71.

[0057] In an optional embodiment of the present invention, the operating table rail clamping device 100 further includes two side rollers 80, each of which is arranged perpendicular to the clamping plane 21, and the two side rollers 80 are rotatably mounted on two opposite sides of the rail clamping frame 10. The side rollers 80 are used to contact the side of the operating table rail to facilitate the positioning of the rail clamping frame 10, while also avoiding scratching the operating table rail.

[0058] In an optional example of this embodiment, the end of the side roller 80 is fixedly connected to the base plate 11 by a pressing sheet 81 and a screw.

[0059] In an optional embodiment of the present invention, the clamping seat 12 includes a connecting plate 121 and a front baffle plate 122 which are arranged perpendicular to the base plate 11, one side of the connecting plate 121 is fixedly connected to the base plate 11, and the other side of the connecting plate 121 is fixedly connected to the front baffle plate 122, the base plate 11, the connecting plate 121 and the front baffle plate 122 are enclosed to form an installation groove, a first guide rail slider assembly 22 is arranged between the clamping block 20 and the front baffle plate 122, a first guide rail slider assembly first installation position 123 which is aligned with the first guide rail slider assembly 22 is arranged on the front baffle plate 122, and a first guide rail slider assembly second installation position 24 which is aligned with the first guide rail slider assembly 22 is arranged on the clamping block 20.

[0060] In an optional example of this embodiment, a second guide rail slider assembly 32 is provided at the end 31 of the thrust plate 30, a second guide rail slider assembly first mounting position 124 is provided on the connecting plate 121, and a second guide rail slider assembly second mounting position 312 is provided at the end 31 of the thrust plate 30.

[0061] In an optional example of this embodiment, the base plate 11 and the front baffle plate 122 are vertically arranged, the connecting plate 121 is horizontally arranged, the end 31 of the pushing plate 30 can move left and right in the horizontal direction, and the clamping block 20 can move up and down along the front baffle plate 122 through the inclined surface cooperation.

[0062] In an optional example of this embodiment, an elastic reset member 23 is provided on the pressing block 20. When the handle 41 is unlocked, under the elastic restoring force of the elastic reset member 23, the two pressing blocks 20 can expand and reset toward the upper and lower ends.

[0063] In an optional example, a first elastic return member installation groove 125 for installing the elastic return member 23 is provided on the front baffle 122, and a second elastic return member installation groove 25 that aligns with the first elastic return member installation groove 125 is also provided on the clamping block 20. When the clamping block 20 is installed, the first elastic return member installation groove 125 and the second elastic return member installation groove 25 align with each other to form a cylindrical cavity, and the elastic return member 23 is arranged in the cavity.

[0064] The operating table rail clamping device 100 proposed in the present invention can be quickly clamped by rotating the limit cam 40 through the handle 41, and its clamping range can be adjusted to adapt to operating table rails with different processing errors, and is compatible with most operating tables on the market.

[0065] The operating table rail clamping device 100 provided by the present invention has a strong clamping force and clamps without scratches; after clamping, it can be locked securely without loosening and will not cause damage to the operating table.

[0066] The detailed explanation of the above-mentioned embodiments is only intended to explain the present invention so as to facilitate a better understanding of the present invention. However, these descriptions cannot be interpreted as limitations on the present invention for any reason. In particular, the various features described in different embodiments may also be arbitrarily combined with each other to form other embodiments. Unless there is a clear description to the contrary, these features should be understood to be applicable to any embodiment and are not limited to the described embodiments.

Claims

1. A surgical bed rail clamping device, characterized in that: The operating table rail clamping device (100) comprises: A guide rail clamping frame (10) comprises a base plate (11) and two clamping seats (12), wherein the two clamping seats (12) are respectively arranged at opposite ends of the base plate (11), each clamping seat (12) has a mounting groove therein, and the notches of the two mounting grooves are arranged opposite to each other; Two pressing blocks (20) are respectively slidably arranged in the two installation grooves, and each of the pressing blocks (20) has a pressing plane (21) that can protrude from the groove; A push plate (30), both ends of which extend into the mounting grooves respectively, and the ends of the push plate (30) and the corresponding pressing blocks (20) are slidably matched to form an inclined wedge mechanism; A limit cam (40) is rotatably mounted on the base plate (11); the rotation axis of the limit cam (40) is parallel to the push plate (30); and the curved surface profile of the limit cam (40) abuts against the push plate (30); when the limit cam (40) rotates, the push plate (30) pushes the two clamping blocks (20) to move synchronously toward each other.

2. The operating table rail clamping device according to claim 1, characterized in that: The base plate (11) is provided with an installation window (111) which is aligned with the limit cam (40), and the installation window (111) is provided with an installation shaft (50), and the limit cam (40) is rotatably mounted outside the installation shaft (50).

3. The operating table rail clamping device according to claim 2, characterized in that: The limiting cam (40) is also provided with a handle (41) for driving the limiting cam (40) to rotate, and a locking structure (60) is provided between the handle (41) and the guide rail clamping frame (10).

4. The operating table rail clamping device according to claim 3, characterized in that: The locking structure (60) comprises an elastic plunger (61) and a locking hole (62); the elastic plunger (61) is arranged on the handle (41); the locking hole (62) is opened on the guide rail clamping frame (10); and the elastic plunger (61) can be inserted into the locking hole (62) in a aligned manner.

5. The operating table rail clamping device according to claim 2, characterized in that: Both ends of the installation shaft (50) are fixedly connected to the base plate (11) via adjustment bolts (51) respectively.

6. The operating table rail clamping device according to claim 1, characterized in that: Two cam bearings (70) are rotatably arranged in each of the installation grooves, and the two cam bearings (70) are respectively located on both sides of the pressing block (20).

7. The operating table rail clamping device according to claim 1, characterized in that: The operating table rail clamping device (100) further comprises two side rollers (80), the two side rollers (80) being rotatably mounted on two side edges of the guide rail clamping frame (10), and each side roller (80) being arranged perpendicular to the clamping plane (21).

8. The operating table rail clamping device according to claim 1, characterized in that: The clamping seat (12) comprises a connecting plate (121) and a front baffle (122) which are arranged perpendicular to the base plate (11); one side of the connecting plate (121) is fixedly connected to the base plate (11); the other side of the connecting plate (121) is fixedly connected to the front baffle (122); the base plate (11), the connecting plate (121) and the front baffle (122) are combined to form the mounting groove; the clamping block (20) is slidably connected to the front baffle (122) via a first guide rail slider assembly (22).

9. The operating table rail clamping device according to claim 8, characterized in that: The end (31) of the push plate (30) is slidably connected to the connecting plate (121) via a second guide rail slider assembly (32).

10. The operating table rail clamping device according to claim 8, characterized in that: The pressing block (20) is also provided with an elastic reset member (23).

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