A surgical fixing arm and a connecting seat of a surgical bed

Abstract

The utility model relates to the technical field of medical apparatus and instruments, especially a connecting seat of surgical fixed arm and operating bed. Including upper clamp piece, lower clamp piece and the locking screw that sets between upper clamp piece, lower clamp piece, upper clamp piece and lower clamp piece are the strip shape structure of relative arrangement, and the sliding connection through vertical slide rail between both, the inner end of locking screw is hinged on the side plate of lower clamp piece, and the outer end is obliquely upwards and passes through the side plate of upper clamp piece through the thread connection locking hand wheel, and the end surface of locking hand wheel cooperates with the inclined plane that sets on upper clamp piece, and the locking hand wheel can be tightened and is lifted lower clamp piece through the locking screw oblique upwards, need only a set of locking mechanism, and the rotation of an operating hand wheel can be locked in two directions of vertical and horizontal, can be connected on the operating bed side edge cross bar with surgical apparatus fast, conveniently and stably, and the position is adjusted conveniently and removed.

Description

Technical Field

[0001] This utility model relates to the technical field of medical devices, and in particular to a connection seat between a surgical fixation arm and an operating table. Background Technology

[0002] In surgical or medical care procedures, movable instrument racks or operating table side crossbars are commonly used as bases for securing surgical instruments to facilitate their fixation and use. While movable instrument racks are convenient to move, their larger size can sometimes interfere with surgical procedures. Operating table side crossbars, typically square or round rods connected to the operating table, do not occupy additional space and their impact on surgical procedures is negligible. These side crossbars must be used with clamps to connect surgical instruments and adjust their position on the crossbar as needed. In existing technology, clamps usually consist of an upper clamp and a lower clamp, which work together to clamp the side crossbar. A crossbar locking assembly allows for locking and releasing between the upper and lower clamps, thus achieving the clamping and releasing of the side crossbar. Both the upper and lower clamps have through holes through which a connecting rod passes. A connecting rod locking assembly further secures and releases the connecting rod from the upper or lower clamp. In other words, existing clamps achieve the fastening and adjustment of the upper and lower clamping blocks with the side crossbar through the adjustment of the crossbar locking assembly, and achieve the fastening and adjustment between the connecting rod and the clamping blocks through the connecting rod locking assembly. During installation and debugging, the crossbar locking assembly and the connecting rod locking assembly need to be operated separately, which is cumbersome and has low adjustment efficiency. This type of clamp requires the simultaneous installation of the crossbar locking assembly and the connecting rod locking assembly, resulting in a complex and loose overall structure and high manufacturing costs. Chinese Patent 2023210832598 discloses "An Infusion Stand Stable on a Bedside Rod", Publication No. CN219963614U, which includes: a notch frame fixedly connected to the bottom of the infusion rod, a second threaded rod threadedly connected to the bottom of the notch frame, and a push block connected to one end of the second threaded rod extending into the notch frame; a second knob is fixedly connected to one end of the second threaded rod extending into the bottom of the notch frame; the infusion rod is fixed to the bedside rod through the notch frame. This type of notched frame installed on the bedside rod also suffers from problems such as cumbersome adjustment operations, low adjustment efficiency, and insufficiently stable and secure connection. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a connecting seat for a surgical fixation arm and an operating table, which can quickly, conveniently, and stably connect surgical instruments to the side crossbar of the operating table, and facilitate movement and position adjustment.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The surgical fixation arm and operating table connection seat of this utility model includes an upper clamping block, a lower clamping block, and a locking screw disposed between the upper and lower clamping blocks. The upper clamping block includes an inner side plate, an outer side plate, and an upper end plate fixedly connected between the inner side plate and the outer side plate. The lower clamping block includes an inner hook plate, an outer hook plate, and a lower end plate fixedly connected between the inner hook plate and the outer hook plate. The outer side plate and the outer hook plate are arranged parallel to each other and are slidably connected by a longitudinal slide rail. An inclined surface is provided between the outer side of the outer side plate and the upper end plate. The inclined surface is a plane parallel to the axis of the upper clamping block and inclined towards the inner side plate at its upper end. The inner end of the locking screw is hinged to the outer hook plate, and the outer end is threaded to a locking handwheel. The outer side plate has a longitudinally arranged elongated hole, the outer end of which is disposed on the inclined surface. The locking screw is inserted through the elongated hole. The end face of the locking handwheel cooperates with the inclined surface disposed on the upper clamping block.

[0005] With this solution, tightening the locking screws can clamp the side crossbars of the operating table from both longitudinal and transverse directions, making the operation quick, convenient, and the connection secure.

[0006] Preferably, the longitudinal slide rail includes a groove on the inner side of the outer side plate and a slider on the outer side of the outer hook plate, the slider being slidably mounted in the groove; an outer side plate groove is provided on the outer side of the outer side plate, the inclined surface is located in the outer side plate groove, the lower end of the inclined surface intersects with the outer side of the outer side plate, the upper end intersects with the outer side of the upper end plate, and the outer end of the elongated hole is located on the inclined surface; the locking handwheel includes a handwheel sleeve threaded onto the locking screw and a handwheel knob fixedly connected to the rear end of the handwheel sleeve, the front end face of the handwheel sleeve engaging with the inclined surface.

[0007] With this solution, the locking handwheel applies downward pressure to the upper clamping block, while the locking screw applies upward tension to the lower clamping block.

[0008] Preferably, the inner side of the outer hook plate has a horizontally arranged strip-shaped mounting groove, and the inner end of the locking screw is fixedly installed with a hinge shaft that is adapted to the strip-shaped mounting groove, and the hinge shaft is snapped into the strip-shaped mounting groove.

[0009] With this solution, the inner end of the locking screw is hinged to the outer hook plate.

[0010] Preferably, an instrument support is fixedly connected to the upper end of the upper clamping block.

[0011] This solution facilitates the connection and use of surgical instruments.

[0012] This invention requires only one locking mechanism and one handwheel to lock in both longitudinal and transverse directions. It can quickly, conveniently, and securely connect surgical instruments to the side crossbar of the operating table, and facilitate movement and position adjustment. Attached Figure Description

[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention in use. Figure 2 This is a three-dimensional structural diagram of one embodiment of the installation platform of this utility model; Figure 3 This is a cross-sectional view of the installation platform. Figure 4 To show the three-dimensional structure of the outer side of the upper clamping block; Figure 5 To show the three-dimensional structure of the inner side of the upper clamping block; Figure 6 This is a schematic diagram of the three-dimensional structure of the lower clamping block.

[0014] Figure 7 This is a three-dimensional structural diagram of the locking screw and locking handwheel. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] Please see Figure 1 , Figure 2 The present invention describes a connection seat for a surgical fixation arm and an operating table, comprising an upper clamping block, a lower clamping block, and a locking screw 1 disposed between the upper and lower clamping blocks. In use, the upper and lower clamping blocks are located on the upper and lower sides of the side crossbar of the operating table, respectively. The locking screw 1 is used to drive the upper and lower clamping blocks to move relative to each other, changing the gap between them, thereby clamping the side crossbar of the operating table.

[0017] like Figure 4 , Figure 5 As shown, the upper clamping block includes an inner side plate 21, an outer side plate 22, and an upper end plate 23 fixedly connected between the inner side plate 21 and the outer side plate 22. The outer side of the upper end plate 23 is flat, which facilitates the connection of surgical instruments or instrument supports 8 by bolts. The inner side plate 21 and the outer side plate 22, which are bent downward at right angles, are fixedly connected to the two sides of the upper end plate 23, respectively. In this way, the upper end plate 23, the inner side plate 21, and the outer side plate 22 together form an upper clamping block with a strip-shaped groove structure. The height of the outer side plate 22 is slightly greater than that of the inner side plate 21, and a sliding groove 26 is provided on the inner side of the outer side plate 22.

[0018] like Figure 6As shown, the lower clamping block includes an inner hook plate 31, an outer hook plate 32, and a lower end plate 33 fixedly connected between the inner hook plate 31 and the outer hook plate 32. The inner hook plate 31 and the outer hook plate 32, which are bent upward at right angles, are fixedly connected to both sides of the lower end plate 33. In this way, the lower end plate 33, the inner hook plate 31, and the outer hook plate 32 together form a lower clamping block with a strip-shaped groove structure. The height of the outer hook plate 32 is slightly greater than that of the inner hook plate 31, and a slider 34 is provided on the outer side of the outer hook plate 32. The shape of the slider 34 is adapted to the slide groove 26, and the slider 34 can slide in the slide groove 26. Together, they form a set of longitudinal slide rails.

[0019] like Figure 2 , Figure 3 As shown, the outer outer plate 22 and the outer hook plate 32 are arranged parallel to each other and slidably connected by a longitudinal slide rail. The outer hook plate 32 is located inside the outer outer plate 22. The upper clamping block and the lower clamping block can slide relative to each other in the longitudinal direction through the longitudinal slide rail, changing the gap between the upper end plate 23 and the lower end plate 33. In addition, an inclined surface 25 is provided between the outer surface of the outer outer plate 22 and the upper end plate 23. The inclined surface 25 is a plane parallel to the axis of the upper clamping block and inclined towards the inner side plate 21 at its upper end.

[0020] The inner end of the locking screw 1 is hinged to the outer hook plate 32, and the outer end is threadedly connected to the locking handwheel 4, allowing the locking screw 1 to tighten the outer hook plate 32. The outer plate 22 has a longitudinally arranged elongated hole 24 that penetrates the outer plate 22, and the outer end of the elongated hole 24 is positioned on an inclined surface 25. The locking screw 1 is inserted through the elongated hole 24 and can slide longitudinally within it. The end face of the locking handwheel 4 engages with the inclined surface 25 on the upper clamping block, and the inclined surface 25 is inclined at an obtuse or acute angle to the outer surface of the outer plate 22. Figure 3 , Figure 4 In this embodiment, an outer side plate groove is provided on the outer side surface of the outer side plate 22, and the inclined surface 25 is located in the outer side plate groove. The lower end of the inclined surface 25 intersects the outer side surface of the outer side plate 22, and the upper end intersects the outer side surface of the upper end plate 23. The outer end of the elongated hole 24 is located on the inclined surface 25. At this time, the inclined surface 25 intersects the outer side surface of the outer side plate 22 at an obtuse angle. The axis of the locking screw 1 is perpendicular to the end face of the locking handwheel 4. When the end face of the locking handwheel 4 is engaged with the inclined surface 25, the axis of the locking screw 1 is inserted into the elongated hole 24 in an inclined state with the inner lower and the outer higher. When the locking handwheel 4 is rotated to drive the locking screw 1 to move axially, the pulling force of the locking screw 1 applies an upward force to the outer hook plate 32. This upward force generates a vertical component and a horizontal component. The vertical component causes the outer hook plate 32 to move upward to clamp the side crossbar of the operating table, while the horizontal component presses the outer hook plate 32 and the outer side plate 22 together. The greater the force of clamping the side crossbar of the operating table, the greater the pressing force of the outer hook plate 32 and the outer side plate 22.

[0021] In another embodiment of this utility model, an inclined boss can be provided on the outer side of the outer plate 22, and the inclined surface 25 can be placed on the inclined boss. At this time, the inclined surface 25 intersects the outer side of the outer plate 22 at an acute angle, and the axis of the locking screw 1 is also inserted into the elongated hole 24 in an inclined state with the inner lower and the outer higher.

[0022] The longitudinal slide rail includes a slide groove 26 provided on the inner side of the outer side plate 22 and a slider 34 provided on the outer side of the outer hook plate 32. The slider 34 is slidably installed in the slide groove 26, which is a U-shaped groove provided on the inner wall of the outer side plate 22.

[0023] like Figure 3 , Figure 7 As shown, the locking handwheel 4 includes a handwheel sleeve 41 threaded onto the locking screw 1 and a handwheel knob 42 fixedly connected to the rear end of the handwheel sleeve 41. The front end face of the handwheel sleeve 41 mates with the inclined surface 25. The locking screw 1 is located in the elongated hole 24, passing through both sides of the outer side plate 22. The locking handwheel 4 is located outside the outer side plate 22 and is threadedly connected to the locking screw 1. Rotating the locking handwheel 4 causes the handwheel sleeve 41 to rotate on the locking screw 1, which can cause the locking screw 1 to produce axial displacement, releasing or tightening the locking screw 1. The locking screw 1 pulls the outer hook plate 32 located inside the outer side plate 22, tightening or releasing the outer hook plate 32.

[0024] like Figure 6 , Figure 7 As shown, the inner side of the outer hook plate 32 has a horizontally arranged strip-shaped mounting groove 35. A hinge shaft 11, adapted to the strip-shaped mounting groove 35, is fixedly installed at the inner end of the locking screw 1. This hinge shaft 11 is perpendicular to the axis of the locking screw 1. The hinge shaft 11 is engaged in the strip-shaped mounting groove 35. The strip-shaped mounting groove 35 does not penetrate the outer hook plate 32; therefore, the hinge shaft 11 can be engaged into the strip-shaped mounting groove 35 from the inner side of the outer hook plate 32 without passing through it, thus achieving a hinged connection between the locking screw 1 and the outer hook plate 32. The bottom of the strip-shaped mounting groove 35 has a through hole capable of accommodating the inner end of the locking screw 1. The inner end of the locking screw 1 is inserted into this through hole and fixedly connected to the hinge shaft 11. The hinge shaft 11 and the locking screw 1 can be an integrated structure, or they can be separately welded or assembled. Figure 3 As shown, in this embodiment, the inner end of the locking screw 1 adopts a cylindrical structure. A mounting hole adapted to the cylindrical structure is provided in the middle section of the hinge shaft 11. The axis of the mounting hole is perpendicular to the axis of the hinge shaft 11. After the inner end of the locking screw 1 is inserted into the mounting hole, another pin perpendicular to the axis of the locking screw 1 is used to connect the locking screw 1 and the hinge shaft 11 together.

[0025] like Figure 3As shown, after the upper and lower clamping blocks are assembled together, the inner side plate 21 and the inner hook plate 31 are relatively small in height, and there is a certain gap between them, which is sufficient to hold the side crossbar of the operating table between the upper and lower clamping blocks. In use, the upper end plate 23 is located above the side crossbar 9, and the lower end plate 33 is located below the side crossbar 9. By rotating the locking handwheel 4, the locking screw 1 can be pulled towards the locking handwheel 4 through the thread. When the locking screw 1 is pulled, the outer hook plate 32 at its inner end and the entire lower clamping block integrated with the outer hook plate 32 are pulled towards the locking handwheel 4. When the end face of the locking handwheel 4 is located on the inclined plane 25, the locking screw 1 is tilted upwards. The lower clamping block is subjected to the upward pulling force of the locking screw 1. The components of this upward pulling force in the horizontal and vertical directions clamp the upper and lower clamping blocks together. The side crossbar 9 is subjected to the vertical clamping force, while the upper and lower clamping blocks are locked together by the horizontal component force. The clamping is stable and firm, and it is not easy to loosen. When it is necessary to move the position, simply loosen the locking screw 1 to release the clamping force in both the horizontal and vertical directions at the same time. The operation is simple and convenient.

[0026] The longitudinal slide rail is set longitudinally. When the lower clamping block is subjected to longitudinal tension, it can move upward along the longitudinal slide rail, reducing the gap between the upper end plate 23 and the lower end plate 33, and clamping the side crossbar 9 from both the top and bottom directions. In addition, the slide groove 26 and the slider 34 that constitute the longitudinal slide rail have a certain gap in the lateral direction. When the lower clamping block is subjected to lateral tension, the lower clamping block moves toward the side of the locking screw 1, reducing the gap between the inner hook plate 31 and the outer side plate 22, and clamping the side crossbar 9 from both the left and right directions.

[0027] As a further improvement of this utility model, the handwheel knob 42 is provided with a bolt hole, in which a locking bolt 43 is installed. The locking bolt 43 is coaxially arranged with the locking screw 1 and is threadedly connected to the outer end of the locking screw 1. An elastic body 44 is provided between the locking bolt 43 and the handwheel knob 42. After the locking bolt 43 is threadedly connected to the locking screw 1, the elastic body 44 can maintain a certain tension between the locking handwheel 4 and the locking screw 1, preventing the threaded connection between the two from loosening due to vibration or other reasons. The elastic body 44 is a helical spring or elastic washer fitted on the locking bolt 43. One end of the helical spring or elastic washer abuts against the bolt head of the locking bolt 43, and the other end abuts against the boss in the inner cavity of the bolt hole. In this embodiment, the elastic body 44 is a helical spring. The rear end of the helical spring rests against the bolt head of the locking bolt 43, while the other end rests against the boss in the inner cavity of the bolt hole. The elastic force of the helical spring keeps the internal thread on the handwheel sleeve 41 and the external thread on the locking screw 1 under certain pressure and good contact, thus improving the operating experience.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A connection seat for a surgical fixation arm and an operating table, comprising an upper clamping block, a lower clamping block, and a locking screw (1) disposed between the upper clamping block and the lower clamping block, characterized in that: The upper clamping block includes an inner side plate (21), an outer side plate (22), and an upper end plate (23) fixedly connected between the inner side plate (21) and the outer side plate (22); the lower clamping block includes an inner hook plate (31), an outer hook plate (32), and a lower end plate (33) fixedly connected between the inner hook plate (31) and the outer hook plate (32); the outer side plate (22) and the outer hook plate (32) are arranged parallel to each other and are slidably connected by a longitudinal slide rail, and an inclined surface (25) is provided between the outer side surface of the outer side plate (22) and the upper end plate (23). The inclined plane (25) is a plane parallel to the axis of the upper clamping block and inclined towards the inner side plate (21) at its upper end; the inner end of the locking screw (1) is hinged to the outer hook plate (32), and the outer end is connected to the locking handwheel (4) by a thread. The outer side plate (22) has a longitudinally arranged long hole (24), the outer end of the long hole (24) is arranged on the inclined plane (25), the locking screw (1) is inserted through the long hole (24), and the end face of the locking handwheel (4) is engaged with the inclined plane (25) arranged on the upper clamping block.

2. The connection seat between the surgical fixation arm and the operating table according to claim 1, characterized in that: The longitudinal slide rail includes a slide groove (26) on the inner side of the outer side plate (22) and a slider (34) on the outer side of the outer hook plate (32). The slider (34) is slidably installed in the slide groove (26). An outer side plate groove is provided on the outer side of the outer side plate (22). The inclined surface (25) is located in the outer side plate groove. The lower end of the inclined surface (25) intersects with the outer side of the outer side plate (22) and the upper end intersects with the outer side of the upper end plate (23). The outer end of the elongated hole (24) is located on the inclined surface (25). The locking handwheel (4) includes a handwheel sleeve (41) fitted onto the locking screw (1) by an internal thread and a handwheel knob (42) fixedly connected to the rear end of the handwheel sleeve (41). The front end face of the handwheel sleeve (41) cooperates with the inclined surface (25).

3. The connection seat between the surgical fixation arm and the operating table according to claim 1 or 2, characterized in that: The inner side of the outer hook plate (32) has a horizontally arranged strip-shaped mounting groove (35), and the inner end of the locking screw (1) is fixedly installed with a hinge shaft (11) that is adapted to the strip-shaped mounting groove (35), and the hinge shaft (11) is snapped into the strip-shaped mounting groove (35).

4. The connection seat between the surgical fixation arm and the operating table according to claim 1 or 2, characterized in that: The upper end of the upper clamping block is fixedly connected to an instrument support (8).

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