A splash guard for a swing saw in joint replacement

Abstract

The application relates to a splash-proof device for a swing saw in arthroplasty, which comprises a protective shell, a protective cover, a connecting assembly, a binding assembly and a resistance increasing assembly. The application can solve the problems of sealing and operation portability not considered in the above-mentioned technology. Although the above-mentioned baffle can block part of blood splashing on the surgical personnel, the regional protection of the baffle is not considered. The baffle can only block the side facing the surgical personnel, and has no blocking effect on other directions. Special blood with infection can still splash to other instruments in other directions, causing pollution. In the above-mentioned technology, the baffle needs to be synchronously adjusted with the swing saw. Since the operation is usually a precision operation, the swing saw may present a fine adjustment operation. The synchronous adjustment of the baffle may block the fine adjustment of the swing saw, thereby causing the deviation of the swing saw operation position, and further causing medical accidents and the like.

Description

Technical Field

[0001] This invention relates to the field of protective equipment technology, and in particular to a splash-proof device for a oscillating saw used in joint replacement surgery. Background Technology

[0002] Joint replacement surgery is currently one of the main treatments for advanced knee osteoarthritis in major hospitals because it can effectively eliminate pain symptoms and greatly improve the quality of life for patients. Whether it's total or partial knee replacement, osteotomy of the corresponding tibia or fibula is essential. A medical oscillating saw is a medical instrument used in joint replacement surgery. An oscillating saw typically includes a motor and an eccentric shaft connected to the motor, which drives the oscillating shaft to oscillate back and forth via a fork, allowing the oscillating saw to oscillate and cut at high speed within a small range. When using an oscillating saw for osteotomy in joint replacement surgery, bone fragments and blood droplets splatter, easily getting into the surgeon's mask and eyes, especially when performing surgery on patients with infectious diseases, which can easily cause passive infection for the surgeon.

[0003] Existing anti-splash devices, such as the Chinese patent with publication number CN113040859A, disclose a surgical anti-blood and bone fragment splash device, including a baffle and a support rod. The baffle is attached to a suction cup, which is connected to the support rod. A buckle is connected to the bottom of the support rod, and the buckle is connected to a powered oscillating saw. The baffle uses a 0.4 mm (21*29.7 cm) high-definition PVC plastic sheet as the shielding material. The baffle has moderate flexibility and toughness, possessing both strength and the ability to be adjusted to any angle according to the surgeon's needs. Its high definition ensures the surgeon's view is not obstructed. The suction cup holds the baffle in place during operation. The buckle is elastic and connects to the powered oscillating saw, integrating the oscillating saw and the baffle into a single unit. The buckle can rotate 360° left and right. The surgeon can adjust the baffle's direction by rotating the buckle; it can be adjusted left, right, forward, and backward to achieve the desired anti-splash effect. The baffle's moderate toughness effectively covers the surgical area.

[0004] In the aforementioned technology, the baffle and the oscillating saw are connected as one unit. During use, the baffle is adjusted left and right, and forward and backward to prevent splashing. However, the technology does not consider the issues of sealing and ease of operation. Although the baffle can prevent some blood from splashing onto the surgical personnel, it does not consider the area protected by the baffle. The baffle can only block the side facing the surgical personnel and has no blocking effect on other areas. Infectious blood can still splash onto instruments in other areas and cause contamination. Furthermore, the baffle in the aforementioned technology needs to be adjusted synchronously with the oscillating saw. Since surgery is usually a precision operation, the use of the oscillating saw may involve fine adjustments. The synchronous adjustment of the baffle may hinder the fine adjustments of the oscillating saw, causing deviations in the working position of the oscillating saw and thus leading to medical accidents.

[0005] Therefore, there is still room for improvement in existing splash guards. Summary of the Invention

[0006] The purpose of this invention is to provide a splash-proof device for a oscillating saw used in joint replacement surgery, in order to overcome the shortcomings of the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A splash-proof device for a oscillating saw used in joint replacement surgery includes a protective shell with a protective cover at its upper end; a connecting component that is connected to an opening slot in the middle of the protective cover via a transparent film, and the connecting component is connected to the head of the oscillating saw; a binding component that is located at the arc-shaped openings at the front and rear ends of the protective shell; and a drag-increasing component that is located in an internal groove in the side wall of the protective shell.

[0008] As a preferred embodiment of the present invention, the protective cover and the protective shell are longitudinally snap-fitted together, and locking components are symmetrically arranged at the left and right ends of the protective cover. The locking components include a rotating member and a rotating head. The rotating member is rotatably arranged at the edge of the protective cover, and the rotating head is installed at the lower end of the rotating member.

[0009] As a preferred embodiment of the present invention, the lower end of the protective cover is connected to the wiping rack via a vertical rod.

[0010] As a preferred embodiment of the present invention, the edge of the transparent film is provided with a skirt structure that increases the diameter, and the edge of the transparent film is slidably disposed in a U-shaped groove opened on the side wall of the opening groove.

[0011] As a preferred embodiment of the present invention, the connecting assembly includes a connecting plate, a rotating plate, a snap-fit ​​slider, a locking member, and a carrying member. The connecting plate is installed at the center of the transparent film. An annular groove is formed on the side wall of the central groove of the connecting plate. The annular groove is used in conjunction with the snap-fit ​​slider. The snap-fit ​​slider is rotatably positioned at the edge of the rotating plate. The rotating plate is rotatably positioned in the central groove. A locking member is installed in the middle of the rotating plate. The locking member is connected to the head of the oscillating saw. A through groove is formed on one side of the rotating plate, and the saw blade of the oscillating saw extends into the through groove. A carrying member is installed on the outer side of the rotating plate.

[0012] As a preferred embodiment of the present invention, the snap-fit ​​sliding member includes a rotating head and a pulley member. The rotating head is rotatably disposed at the edge of the rotating plate, and a pulley member is installed on one side of the lower end of the rotating head. The pulley member is used to slide in cooperation with the inside of the annular groove.

[0013] As a preferred embodiment of the present invention, the binding component includes a connecting layer and a connecting wristband. The connecting layer is laid at the arc-shaped opening of the protective shell. The connecting layer is a hook and loop fastener. The connecting layer and the connecting wristband are bonded together by adhesive. The outer surface of the connecting wristband is a hook and loop fastener.

[0014] As a preferred embodiment of the present invention, the resistance-increasing assembly includes a connecting rod, a resistance-increasing rod, an elastic rope, a resistance-increasing unit, and a pushing member. The connecting rod is slidably disposed in the built-in groove. The outer side of the lower end of the connecting rod and the outer side of the upper end of the resistance-increasing rod are hinged together. An elastic rope connects the connecting rod and the resistance-increasing rod. The resistance-increasing unit is temporarily hidden inside the resistance-increasing rod. An L-shaped pushing member is installed on the outer side of the resistance-increasing rod.

[0015] As a preferred embodiment of the present invention, the upper end of the connecting rod is provided with a groove, and a snap-fit ​​component is installed on the side wall of the groove. The snap-fit ​​component and the rotating head are used in a snap-fit ​​engagement.

[0016] As a preferred embodiment of the present invention, the resistance-increasing unit includes an extrusion rod, a magnetic layer, an iron block, and a resistance-increasing block. The extrusion rod is slidably disposed in a sliding groove opened in the resistance-increasing rod. The lower end of the extrusion rod is elastically connected to the sliding groove. The side wall of the extrusion rod is uniformly provided with extrusion grooves from top to bottom. The inclined surface of the extrusion groove is gradually inclined downward from the outside to the inside. The vertical side wall of the extrusion groove is covered with a magnetic layer. The iron block, which is magnetically connected to the magnetic layer, is installed on the outer end face of the resistance-increasing block. The resistance-increasing block is horizontally slidably disposed in a hidden groove opened in the resistance-increasing rod.

[0017] In summary, this application includes the following beneficial technical effects: This invention discloses an anti-splash device for a oscillating saw used in joint replacement surgery. During joint surgery, the device provides a bandage-sealed enclosure around the surgical site. Adding drag-increasing components to both sides of the protective shell prevents misalignment and rotation of the shell after bandage binding through multi-point contact between the drag-increasing components and the skin, thus improving positional stability. Compared to a baffle, this significantly improves the sealing effect and contamination prevention. Furthermore, after connecting the connecting component to the head of the oscillating saw, the connecting component is connected to the protective cover via a transparent film with movable edges, maximizing the freedom of movement during oscillating saw operation and minimizing interference. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional view of the protective shell, protective cover, connecting component, and resistance-increasing component of the present invention; Figure 3 This is a schematic diagram of the wiping holder of the present invention; Figure 4 This is the present invention. Figure 2 A magnified view of the area at point X; Figure 5 This is the present invention. Figure 2 A magnified view of the area at point Y; Figure 6 This is the present invention. Figure 2 A magnified view of the Z-axis. Detailed Implementation

[0019] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0020] This application discloses a splash-proof device for a oscillating saw used in joint replacement surgery. This application uses a strap-type sealed cover to cover the surgical area during joint surgery, and adds a drag-increasing structure during sealing to prevent angular rotation during sealing. The sealed cover prevents blood plasma from splashing to distant locations during the use of the oscillating saw. This application adopts a quick-release and quick-installation structural design to improve the portability of the application and increase efficiency.

[0021] Reference Figures 1-2 As shown in this embodiment, a splash-proof device for a oscillating saw used in joint replacement surgery is disclosed. It includes a protective shell 1, a protective cover 2, a connecting component 3, a binding component 4, and a drag-increasing component 5. The protective cover 2 is provided at the upper end of the protective shell 1. The connecting component 3 is connected to the opening slot in the middle of the protective cover 2 through a transparent film. The connecting component 3 is connected to the head of the oscillating saw. The binding component 4 is provided at the arc-shaped openings at the front and rear ends of the protective shell 1. The drag-increasing component 5 is provided in the built-in slot in the side wall of the protective shell 1.

[0022] In actual operation, the head of the oscillating saw is assembled with the connecting component 3. Then, the position of the joint to be operated on is determined, the resistance-increasing component 5 is pushed out, and then the protective shell 1 is bound to both sides of the position to be operated on by the binding component 4. The position to be operated on is sealed by the protective shell 1. The pushed-out resistance-increasing component 5 is attached to the surface of the leg to increase resistance (to prevent the protective shell 1 from rotating). Then, the protective cover 2 is put on, and the oscillating saw is used to perform the operation through the transparent film.

[0023] Reference Figure 1 , Figure 2 , Figure 4 As shown, the protective cover 2 and the protective shell 1 are longitudinally snapped together. The left and right ends of the protective cover 2 are symmetrically provided with locking components 6. The locking components 6 include a rotating part 61 and a rotating head 62. The rotating part 61 is rotatably disposed at the edge of the protective cover 2, and the rotating head 62 is installed at the lower end of the rotating part 61.

[0024] Reference Figure 2 , Figure 3As shown, the lower end of the protective cover 2 is connected to the wiping frame 7 via a vertical rod. After the protective cover 2 is placed on the protective shell 1, the wiping frame 7 is flush with the lower end structure of the protective shell 1. After the swing saw is used, the protective cover 2 is opened, and the wiping frame 7 rises synchronously to wipe the contaminants on the inner wall of the protective shell 1.

[0025] Reference Figure 2 As shown, the transparent film has a skirt structure with an increased diameter at its edge. The edge of the transparent film is slidably disposed in the U-shaped groove opened on the side wall of the opening groove. The skirt structure ensures that the transparent film has a larger range of movement in the opening groove, ensuring the normal range of movement of the oscillating saw. In addition, the increased diameter of the skirt structure also has a limiting effect, preventing the transparent film from falling off from the U-shaped groove.

[0026] Reference Figure 1 , Figure 2 , Figure 5 As shown, the connecting component 3 is locked to the head of the oscillating saw, and with the transparent connection of the surrounding transparent film, the oscillating saw can be used normally in a relatively sealed environment. The specific structure is as follows: the connecting component 3 includes a connecting plate 31, a rotating plate 32, a snap-fit ​​slider 33, a locking component 34, and a handle 35. The connecting plate 31 is installed at the center of the transparent film. The side wall of the central groove of the connecting plate 31 has an annular groove, which is used in conjunction with the snap-fit ​​slider 33. The snap-fit ​​slider 33 is rotatably set at the edge of the rotating plate 32. The rotating plate 32 is rotatably set in the central groove. The locking component 34 is installed in the middle of the rotating plate 32 and is connected to the head of the oscillating saw. A through groove is opened on one side of the rotating plate 32, and the saw blade of the oscillating saw extends into the through groove. The handle 35 is installed on the outer side of the rotating plate 32.

[0027] Reference Figure 5 As shown, the snap-fit ​​sliding member 33 includes a rotating head 331 and a pulley member 332. The rotating head 331 is rotatably disposed at the edge of the rotating plate 32. The pulley member 332 is installed on one side of the lower end of the rotating head 331. The pulley member 332 is used to slide in cooperation with the inside of the annular groove.

[0028] In the actual connection process, the locking piece 34 is tightly wrapped around the head of the oscillating saw. Then, the rotating plate 32 is rotated and installed on the connecting plate 31. The specific operation is as follows: hold the handle 35 to control the rotating plate 32 to reach the appropriate position. At this time, the rotating plate 32 and the connecting plate 31 are at the same horizontal position. Then, rotate the rotating head 331 so that the pulley piece 332 is locked in the annular groove. At this time, under the action of the pulley piece 332, the rotating plate 32 can rotate horizontally in the connecting plate 31, which is beneficial to the subsequent rotation of the oscillating saw.

[0029] Reference Figure 1As shown, the binding component 4 includes a connecting layer 41 and a connecting wristband 42. The connecting layer 41 is laid at the arc-shaped opening of the protective shell 1. The connecting layer 41 is a hook and loop fastener. The connecting layer 41 and the connecting wristband 42 are bonded together by adhesive. The outer surface of the connecting wristband 42 is a hook and loop fastener.

[0030] In the actual binding process, the connecting wristband 42 is wrapped around the leg (hand) in sequence, and then the protective shell 1 is covered on the position to be operated on by the adhesion between the connecting layer 41 and the connecting wristband 42.

[0031] Reference Figure 6 As shown, after the protective shell 1 is bound by the connecting wristband 42, the protective shell 1 may rotate. In response to this situation, this application provides a resistance-increasing component 5. The specific structure of the resistance-increasing component 5 is as follows: the resistance-increasing component 5 includes a connecting rod 51, a resistance-increasing rod 52, an elastic rope 53, a resistance-increasing unit 54, and a pusher 55. The connecting rod 51 is slidably disposed in the built-in groove. The lower outer side of the connecting rod 51 and the upper outer side of the resistance-increasing rod 52 are hinged together. An elastic rope 53 is connected between the connecting rod 51 and the resistance-increasing rod 52. The elastic rope 53 plays an elastic traction role. The resistance-increasing unit 54 is temporarily hidden inside the resistance-increasing rod 52. An L-shaped pusher 55 is installed on the outer side of the resistance-increasing rod 52.

[0032] Reference Figure 4 As shown, the upper end of the connecting rod 51 is provided with a groove, and a snap-fit ​​component is installed on the side wall of the groove. The snap-fit ​​component and the rotating head 62 are used in a snap-fit ​​engagement. The locking component 6 is set to lock the position of the protective shell 1, the protective cover 2, and the resistance-increasing component 5 in the storage state. The specific operation is as follows: when the connecting rod 51 in the protective shell 1, the protective cover 2, and the resistance-increasing component 5 are all in the initial state, the rotating head 62 is inserted into the groove. When it is necessary to lock the three, simply rotate the rotating component 61 180 degrees to form a snap-fit ​​effect between the rotating head 62 and the snap-fit ​​component. At this time, the three are locked.

[0033] Reference Figure 6As shown, the resistance-enhancing unit 54 includes a compression rod 541, a magnetic layer 542, an iron block 543, and a resistance-enhancing block 544. The compression rod 541 is slidably disposed in the sliding groove opened in the resistance-enhancing rod 52. The lower end of the compression rod 541 is elastically connected to the sliding groove. The side wall of the compression rod 541 is evenly provided with compression grooves from top to bottom. The inclined surface of the compression groove is gradually inclined downward from the outside to the inside. The vertical side wall of the compression groove is covered with a magnetic layer 542. The iron block 543, which is magnetically connected to the magnetic layer 542, is installed on the outer end face of the resistance-enhancing block 544. The resistance-enhancing block 544 is horizontally slidably disposed in the hidden groove opened in the resistance-enhancing rod 52. Since the installation position of this application may change (different surgical positions), this application uses multiple points of contact between the extended multi-position resistance-enhancing block 544 and the skin. Compared with the contact between a single complete surface and the skin, the multi-point small area contact has a wider range of applications, and the degree of friction is still maintained.

[0034] In actual operation, before the protective shell 1 is bound, the pusher 55 is pushed down to push the friction-increasing rod 52 out of the built-in groove. At this time, the lower end of the connecting rod 51 no longer presses the upper end of the pressing rod 541. The pressing rod 541 extends upward under the elastic action. The pressing of the iron block 543 by the pressing rod 541 causes the friction-increasing block 544 to extend out of the hidden groove position. The friction resistance is increased by the multi-point contact between the friction-increasing block 544 and the skin, which reduces the situation where the protective shell 1 drives the connecting wristband 42 to rotate.

[0035] Working principle: Step 1: Assembly. Secure the locking piece 34 around the head of the oscillating saw, and then assemble the rotating plate 32 with the connecting plate 31 so that the rotating plate 32 can rotate on the connecting plate 31. Step 2: Binding. After determining the location of the joint to be operated on, the resistance-increasing component 5 is pushed out, and the protective shell 1 is bound to both sides of the location to be operated on through the binding component 4. The protective shell 1 is used to seal the periphery of the location to be operated on. Step 3: Increase resistance. The increased resistance component 5 is attached to the surface of the leg to increase resistance. Then, the protective cover 2 is put on to achieve a sealed effect. Step 4: Operation, using a oscillating saw to perform the operation through the transparent film.

[0036] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A splash-proof device for an oscillating saw used in joint replacement surgery, characterized in that, include: A protective shell (1) with a protective cover (2) at its upper end; The connecting component (3) is connected to the opening slot in the middle of the protective cover (2) through a transparent film, and the connecting component (3) is connected to the head of the oscillating saw. The binding component (4) is located at the arc-shaped openings at both ends of the protective shell (1); The resistance-increasing component (5) is disposed in an internal groove opened in the side wall of the protective shell (1); The lower end of the protective cover (2) is connected to the wiping rack (7) via a vertical rod; The transparent film has a skirt structure with an increasing diameter at its edge, and the edge of the transparent film is slidably disposed in a U-shaped groove opened in the side wall of the opening groove; The connecting assembly (3) includes a connecting plate (31), a rotating plate (32), a snap-fit ​​slide (33), a locking element (34), and a handle (35). The connecting plate (31) is installed at the center of the transparent film. An annular groove is provided on the side wall of the central groove of the connecting plate (31). The annular groove is used in conjunction with the snap-fit ​​slide (33). The snap-fit ​​slide (33) is rotatably set at the edge of the rotating plate (32). The rotating plate (32) is rotatably set in the central groove. A locking element (34) is installed in the middle of the rotating plate (32). The locking element (34) is connected to the head of the oscillating saw. A through groove is provided on one side of the rotating plate (32), and the saw blade of the oscillating saw is inserted into the through groove. A handle (35) is installed on the outer side of the rotating plate (32). The resistance-increasing component (5) includes a connecting rod (51), a resistance-increasing rod (52), an elastic rope (53), a resistance-increasing unit (54), and a pusher (55). The connecting rod (51) is slidably disposed in the built-in groove. The lower outer side of the connecting rod (51) and the upper outer side of the resistance-increasing rod (52) are connected by a hinge. An elastic rope (53) is connected between the connecting rod (51) and the resistance-increasing rod (52). The resistance-increasing unit (54) is temporarily hidden inside the resistance-increasing rod (52). An L-shaped pusher (55) is installed on the outer side of the resistance-increasing rod (52). The resistance-increasing unit (54) includes a pressing rod (541), a magnetic layer (542), an iron block (543), and a resistance-increasing block (544). The pressing rod (541) is slidably disposed in the sliding groove opened by the resistance-increasing rod (52). The lower end of the pressing rod (541) is elastically connected to the sliding groove. The side wall of the pressing rod (541) is evenly provided with pressing grooves from top to bottom. The inclined surface of the pressing groove is gradually inclined downward from the outside to the inside. The vertical side wall of the pressing groove is covered with a magnetic layer (542). The iron block (543) magnetically connected to the magnetic layer (542) is installed on the outer end face of the resistance-increasing block (544). The resistance-increasing block (544) is horizontally slidably disposed in the hidden groove opened by the resistance-increasing rod (52).

2. The anti-splash device for an oscillating saw used in joint replacement surgery according to claim 1, characterized in that: The protective cover (2) and the protective shell (1) are connected by a longitudinal snap-fit ​​assembly. The left and right ends of the protective cover (2) are symmetrically provided with locking components (6). The locking components (6) include a rotating part (61) and a rotating head (62). The rotating part (61) is rotatably set at the edge of the protective cover (2). The rotating head (62) is installed at the lower end of the rotating part (61).

3. The anti-splash device for an oscillating saw used in joint replacement surgery according to claim 1, characterized in that: The snap-fit ​​sliding member (33) includes a rotating head (331) and a pulley member (332). The rotating head (331) is rotatably positioned at the edge of the rotating plate (32). The pulley member (332) is installed on one side of the lower end of the rotating head (331). The pulley member (332) slides in cooperation with the inside of the annular groove.

4. The anti-splash device for an oscillating saw used in joint replacement surgery according to claim 1, characterized in that: The binding component (4) includes a connecting layer (41) and a connecting wristband (42). The connecting layer (41) is laid at the arc-shaped opening of the protective shell (1). The connecting layer (41) is a hook and loop fastener. The connecting layer (41) and the connecting wristband (42) are bonded together. The outer surface of the connecting wristband (42) is a hook and loop fastener.

5. The anti-splash device for an oscillating saw used in joint replacement surgery according to claim 1, characterized in that: The upper end of the connecting rod (51) is provided with a groove, and a snap-fit ​​component is installed on the side wall of the groove. The snap-fit ​​component and the rotating head (62) are used in a snap-fit ​​engagement.

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