Clamping and positioning device for surgical instrument

Abstract

The utility model discloses a surgical instrument clamping and positioning device which comprises a clamping seat used for being clamped on an instrument, the clamping seat comprises a fixed seat, a movable plate and a mounting seat, the fixed seat is connected with an optical positioning part, the fixed seat is detachably connected with the mounting seat, the movable plate is located between the fixed seat and the mounting seat, and the optical positioning part is detachably connected with the movable plate. A mounting hole is formed in the fixed seat in a penetrating manner, a rotating shaft is mounted in the mounting hole, a connecting hole for the rotating shaft to penetrate through is formed in the movable plate, and a driving part for driving the movable plate to rotate around the rotating shaft is mounted between the fixed seat and the movable plate. An instrument with a circular section penetrates through the clamping seat, so that the instrument is located between the movable plate and the fixed seat, the movable plate is driven by the driving part to rotate, so that the movable plate and the fixed seat abut against the outer surface of the instrument, the clamping seat is fixed to the instrument, the optical positioning part on the fixed seat can be matched with the NDI, and real-time positioning of a traditional instrument is achieved.

Description

Technical Field

[0001] This application relates to the field of surgical instruments, and more particularly to a clamping and positioning device for surgical instruments. Background Technology

[0002] In modern surgery, precise instrument positioning is crucial for ensuring surgical success and patient recovery. With advancements in medical technology, navigation, orientation, and identification (NDI) systems are widely used in operating rooms to assist surgeons in performing more precise procedures. However, many existing surgical instruments, such as taps and sleeves, are typically not designed to be compatible with these advanced positioning systems. Specifically, they lack specific optical positioning markers, preventing direct use with NDI systems and thus limiting their application in surgeries requiring precise positioning.

[0003] Furthermore, hospitals already possess a large inventory of traditional surgical instruments. To make these instruments compatible with the NDI system, medical institutions may face two options: either purchase entirely new instruments pre-installed with optical positioning markers, or modify existing instruments. The former not only increases costs but may also lead to resource waste; the latter requires an economical and efficient method to achieve this goal.

[0004] Regarding the aforementioned technologies, the inventors believe that the following drawbacks exist: hospitals already have a large inventory of traditional surgical instruments. Purchasing brand-new instruments pre-installed with optical positioning markers would be costly and could easily lead to resource waste, thus requiring improvement. Utility Model Content

[0005] In view of the shortcomings of the prior art, this application provides a clamping and positioning device for surgical instruments, which aims to solve the above problems.

[0006] A clamping and positioning device for surgical instruments includes a clamping seat for clamping the instrument. The clamping seat includes a fixed seat, a movable plate, and a mounting seat. An optical positioning element is connected to the fixed seat. The fixed seat and the mounting seat are detachably connected. The movable plate is located between the fixed seat and the mounting seat. A mounting hole is provided through the fixed seat, and a rotating shaft is installed in the mounting hole. A connecting hole for the rotating shaft to pass through is provided on the movable plate. A driving element for driving the movable plate to rotate around the rotating shaft is installed between the fixed seat and the movable plate.

[0007] By adopting the above technical solution, a circular cross-section instrument is passed through the clamping seat, so that the instrument is located between the movable plate and the fixed seat. The movable plate is rotated by the driving component, so that the movable plate and the fixed seat are pressed against the outer surface of the instrument, thereby fixing the clamping seat on the instrument. The optical positioning component on the fixed seat can cooperate with NDI, enabling the traditional instrument to achieve real-time positioning.

[0008] Optionally, the driving component includes a driving shaft rotatably connected between the mounting base and the fixed base, and a driving nut threadedly connected to the driving shaft. The movable plate has a receiving groove for the driving nut to be inserted into. Both sides of the driving nut are connected to connecting shafts. The two opposing inner sidewalls of the receiving groove are each provided with a connecting groove for the connecting shaft to be inserted into and rotated.

[0009] By adopting the above technical solution, the drive shaft drives the drive nut to move, and the drive nut drives the movable plate to rotate around the drive shaft, so that the movable plate and the fixed seat clamp the device.

[0010] Optionally, the fixed base has a drive groove for one end of the drive shaft to be inserted into, one end of the drive shaft is connected to a rotating block, the mounting base has an adjustment hole for the rotating block to be inserted into, and the rotating block has a rotation groove.

[0011] By adopting the above technical solution, the tool is inserted into the rotating groove, which drives the rotating block to rotate. The rotating block drives the drive shaft to rotate, and the drive shaft drives the drive nut to move.

[0012] Optionally, the mounting base is connected to two guide blocks, and the fixed base is provided with two guide grooves for the guide blocks to engage.

[0013] Optionally, the mounting base is mounted on the fixed base by mounting bolts.

[0014] By adopting the above technical solution, the mounting base and the fixed base can be separated by removing the mounting bolts, making disassembly convenient.

[0015] Optionally, a mounting rod is connected to the mounting base, and a mounting post is connected to one end of the mounting rod. The optical positioning component has a mounting groove for the mounting post to be inserted into, and the mounting post is fixed to the optical positioning component by bolts.

[0016] By adopting the above technical solution, the bolts are unscrewed, causing the mounting post to detach from the mounting groove, thereby separating the optical positioning component from the mounting rod, which facilitates the individual replacement of the optical positioning component.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] 1. A circular instrument is passed through the clamping seat, so that the instrument is located between the movable plate and the fixed seat. The movable plate is rotated by the driving component, so that the movable plate and the fixed seat are pressed against the outer surface of the instrument, thereby fixing the clamping seat on the instrument. The optical positioning component on the fixed seat can cooperate with NDI to enable the traditional instrument to achieve real-time positioning.

[0019] 2. The drive shaft drives the drive nut to move, and the drive nut drives the movable plate to rotate around the drive shaft, so that the movable plate and the fixed seat clamp the device.

[0020] 3. Unscrew the bolts to disengage the mounting post from the mounting slot, thereby separating the optical positioning component from the mounting rod, making it easier to replace the optical positioning component individually. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0022] Figure 2 This is a cross-sectional schematic diagram of an embodiment of this application.

[0023] Figure 3 This is a schematic diagram of the structure of the fixing seat in the embodiment of this application.

[0024] Figure 4 This is a schematic diagram of the structure of the active plate in the embodiments of this application.

[0025] Figure 5 This is a schematic diagram of the structure of the drive nut in an embodiment of this application.

[0026] Figure 6 This is a schematic diagram of the mounting base in an embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Clamping seat; 2. Fixing seat; 21. Mounting hole; 22. Rotating shaft; 23. Drive groove; 24. Guide groove; 3. Movable plate; 31. Connecting hole; 32. Receiving groove; 33. Connecting groove; 4. Mounting seat; 41. Adjusting hole; 42. Guide block; 5. Optical positioning component; 51. Mounting groove; 6. Drive shaft; 61. Rotating block; 611. Rotating groove; 7. Drive nut; 71. Connecting shaft; 8. Mounting bolt; 9. Mounting rod; 91. Mounting column. Detailed Implementation

[0029] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0031] This application discloses a clamping and positioning device for surgical instruments. (Refer to...) Figure 1 and Figure 2 The device includes a clamping base 1 for holding the instrument, the clamping base 1 including a fixed base 2, a movable plate 3, and a mounting base 4. An optical positioning element 5 is detachably connected to the fixed base 2, and the optical positioning element 5 on the fixed base 2 can cooperate with NDI to enable real-time positioning of conventional instruments.

[0032] Reference Figures 1 to 4 The mounting base 4 is fixedly mounted on the fixed base 2 by mounting bolts 8. The movable plate 3 is located between the fixed base 2 and the mounting base 4. The fixed base 2 has a through mounting hole 21, in which a rotating shaft 22 is installed. The movable plate 3 has a connecting hole 31 for the rotating shaft 22 to pass through. A driving component for driving the movable plate 3 to rotate around the rotating shaft 22 is installed between the fixed base 2 and the movable plate 3. A circular instrument is passed through the clamping seat 1, so that the instrument is located between the movable plate 3 and the fixed base 2. The driving component drives the movable plate 3 to rotate, so that the movable plate 3 and the fixed base 2 press against the outer surface of the instrument, thereby fixing the clamping seat 1 on the instrument.

[0033] Reference Figure 2 and Figure 3 A mounting rod 9 is fixedly connected to the mounting base 2. A mounting post 91 is fixedly connected to one end of the mounting rod 9. The optical positioning component 5 has a mounting groove 51 for the mounting post 91 to be inserted into. The mounting post 91 and the optical positioning component 5 are fixed with bolts. By unscrewing the bolts, the mounting post 91 is disengaged from the mounting groove 51, thereby separating the optical positioning component 5 from the mounting rod 9, which facilitates the individual replacement of the optical positioning component 5.

[0034] Reference Figure 2, Figure 4 and Figure 5 The driving component includes a drive shaft 6 rotatably connected between the mounting base 4 and the fixed base 2, and a drive nut 7 threadedly connected to the drive shaft 6. The upper end of the movable plate 3 has a receiving groove 32 for the drive nut 7 to be inserted into, and the drive shaft 6 passes through the receiving groove 32. Both sides of the drive nut 7 are fixedly connected to connecting shafts 71 with circular cross-sections. The two opposing inner sidewalls of the receiving groove 32 each have connecting grooves 33 for the connecting shafts 71 to be inserted into and rotate. The drive shaft 6 drives the drive nut 7 to move, and the drive nut 7 drives the movable plate 3 to rotate around the rotating shaft 22, thus clamping the device between the movable plate 3 and the fixed base 2.

[0035] Reference Figure 2 and Figure 6 The fixed base 2 has a drive groove 23 for one end of the drive shaft 6 to be inserted into. One end of the drive shaft 6 is fixedly connected to a rotating block 61. The mounting base 4 has an adjustment hole 41 for the rotating block 61 to be inserted into. The rotating block 61 has a hexagonal rotating groove 611. When an Allen wrench is inserted into the rotating groove 611, the rotating block 61 is rotated, which in turn drives the drive shaft 6 to rotate, and the drive shaft 6 moves the drive nut 7.

[0036] Reference Figure 3 and Figure 6 Two guide blocks 42 are fixedly connected to the mounting base 4, and two guide grooves 24 are correspondingly provided on the fixing base 2 for the guide blocks 42 to engage. The guide blocks 42 move within the guide grooves 24, thereby providing a guiding function to the mounting base 4, quickly determining the relative position of the fixing base 2 and the mounting base 4, and improving the installation efficiency of the mounting base 4.

[0037] The implementation principle of a clamping and positioning device for surgical instruments according to an embodiment of this application is as follows: the instrument with a circular cross-section passes through the clamping seat 1, so that the instrument is located between the movable plate 3 and the fixed seat 2. The movable plate 3 is rotated by the driving component, so that the movable plate 3 and the fixed seat 2 are pressed against the outer surface of the instrument, thereby fixing the clamping seat 1 on the instrument. The optical positioning component 5 on the fixed seat 2 can cooperate with the NDI system to enable the traditional instrument to achieve real-time positioning.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A clamping and positioning device for surgical instruments, characterized in that: The device includes a clamping seat (1) for clamping onto an instrument. The clamping seat (1) includes a fixed seat (2), a movable plate (3), and a mounting seat (4). An optical positioning element (5) is connected to the fixed seat (2). The fixed seat (2) and the mounting seat (4) are detachably connected. The movable plate (3) is located between the fixed seat (2) and the mounting seat (4). The fixed seat (2) has a through mounting hole (21). A rotating shaft (22) is installed in the mounting hole (21). The movable plate (3) has a connecting hole (31) for the rotating shaft (22) to pass through. A driving element for driving the movable plate (3) to rotate around the rotating shaft (22) is installed between the fixed seat (2) and the movable plate (3).

2. The clamping and positioning device for surgical instruments according to claim 1, characterized in that: The driving component includes a driving shaft (6) rotatably connected between the mounting base (4) and the fixed base (2) and a driving nut (7) threadedly connected to the driving shaft (6). The movable plate (3) is provided with a receiving groove (32) for the driving nut (7) to be inserted into. Both sides of the driving nut (7) are connected to a connecting shaft (71). The two inner sidewalls of the receiving groove (32) facing each other are provided with connecting grooves (33) for the connecting shaft (71) to be inserted into and rotated.

3. The clamping and positioning device for surgical instruments according to claim 2, characterized in that: The fixed base (2) has a drive groove (23) for one end of the drive shaft (6) to be inserted into. One end of the drive shaft (6) is connected to a rotating block (61). The mounting base (4) has an adjustment hole (41) for the rotating block (61) to be inserted into. The rotating block (61) has a rotating groove (611).

4. The clamping and positioning device for surgical instruments according to claim 1, characterized in that: The mounting base (4) is connected to two guide blocks (42), and the fixing base (2) has two guide grooves (24) for the guide blocks (42) to be inserted into.

5. A clamping and positioning device for surgical instruments according to claim 1, characterized in that: The mounting base (4) is mounted on the fixed base (2) by mounting bolts (8).

6. A clamping and positioning device for surgical instruments according to claim 1, characterized in that: The mounting base (2) is connected to a mounting rod (9), and one end of the mounting rod (9) is connected to a mounting post (91). The optical positioning component (5) has a mounting groove (51) for the mounting post (91) to be inserted into. The mounting post (91) and the optical positioning component (5) are fixed by bolts.

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