Bone screw loading cartridge

Abstract

The utility model provides a kind of bone screw loading box, belong to bone nail box technical field. Including multiple for accommodating bone screw cylinder, the both ends of each cylinder are detachably connected with upper cover and lower cover, multiple cylinder is assembled along its radial splicing, two adjacent cylinders are connected by connecting piece, connecting piece includes first connecting block and second connecting block, first connecting block is arranged in the side of cylinder and is equipped with the clamping groove of the size with second connecting block adaptation, second connecting block is arranged in the other side of cylinder and is inserted with the clamping groove of adjacent cylinder and cooperates with each other. The bone screw loading box of the application is assembled by multiple cylinder through second connecting block and clamping groove, medical staff can take down corresponding cylinder according to the number of bone screw required in operation, the bone screw in the remaining unused cylinder is not exposed to air, still can be recycled, with the effect of saving resources.

Description

Technical Field

[0001] This utility model relates to the field of bone screw box technology, and in particular to a bone screw loading box. Background Technology

[0002] Bone screws are commonly used implants in orthopedic surgery to fix fracture sites or plates. Currently, there are two main packaging methods for bone screws. The first is flexible packaging (such as paper-plastic bags). As a common medical device in orthopedic surgery, bone screws are usually aseptically packaged in sealed plastic bags. The second is screw box packaging. Using a screw box avoids the need for clamping tools; the screw box itself provides support, allowing the screwdriver tip to easily align with the screw head.

[0003] Traditional sterile packaging bags and screw boxes typically contain multiple bone screws. When the packaging is opened during surgery, all the screws are exposed to the air. However, not all the screws are usually used during surgery, and they cannot be resterilized and resealed. This means that any remaining screws must be discarded, resulting in resource waste. Utility Model Content

[0004] In view of the above problems, this utility model provides a bone screw loading box.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A bone screw loading box is provided, comprising multiple cylindrical bodies for accommodating bone screws. Each cylindrical body has an upper cover and a lower cover detachably connected to both ends. The multiple cylindrical bodies are assembled by splicing along their own radial direction. Adjacent cylindrical bodies are connected by a connector. The connector includes a first connecting block and a second connecting block. The first connecting block is disposed on one side of the cylindrical body and has a slot with a size adapted to the second connecting block. The second connecting block is disposed on the other side of the cylindrical body and is inserted into the slot of the adjacent cylindrical body.

[0006] Furthermore, the bone screw includes a head and a threaded portion. An annular step with an inner diameter smaller than the outer diameter of the head is coaxially fixed inside the cylinder. The length of the annular step is longer than the length of the threaded portion. An installation space for accommodating the head is formed between the annular step and the top cover. After the threaded portion passes through the inner side of the annular step, the head enters the installation space.

[0007] Furthermore, a first boss is fixed on one side of the upper cover for insertion and engagement with one end of the cylinder, and a second boss is fixed on one side of the lower cover for insertion and engagement with the other end of the cylinder.

[0008] Furthermore, the side wall of the cylinder is provided with a vent for the passage of moist heat sterilization gas at the part that contacts the first boss, and an exhaust channel is provided inside the first boss for movably connecting the inside of the cylinder and the vent.

[0009] Furthermore, multiple positioning blocks are evenly spaced along the circumference of the outer wall of the first boss, and multiple positioning grooves of the same size as each positioning block are opened on the inner side wall of the cylinder. There are two air holes, which are located in two of the positioning grooves respectively. There are two air outlets of the exhaust channel, which are located on two of the positioning blocks respectively. The air inlet of the exhaust channel is located on the side of the first boss away from the top cover.

[0010] Furthermore, the cylinder, top cover, and bottom cover are made of medical-grade polypropylene material.

[0011] The beneficial effects of this utility model are as follows: The bone screw loading box of this application is assembled by multiple cylinders connected to the slots through a second connecting block. Medical staff can check the number of cylinders and bone screws in real time, avoiding the situation where multiple cylinders are scattered and missed. The corresponding cylinder is removed according to the number of bone screws needed, and the bone screws in the cylinder can be taken out by opening the top cover. After use, the bone screws in the remaining unused cylinders are not exposed to the air and can still be recycled, which has the effect of saving resources. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a bone screw loading box according to an embodiment of this application.

[0013] Figure 2 This is an exploded view of a bone screw loading box according to an embodiment of this application.

[0014] Figure 3 This is an exploded view of another perspective of a bone screw loading box according to an embodiment of this application.

[0015] Figure 4 This is a cross-sectional structural diagram of the cylindrical body of a bone screw loading box according to an embodiment of this application.

[0016] Figure 5 This is a cross-sectional view of the first boss of a bone screw loading box according to an embodiment of this application.

[0017] The components include: 1. cylinder; 11. annular step; 12. air hole; 13. positioning groove; 2. upper cover; 21. first boss; 211. exhaust channel; 212. positioning block; 3. lower cover; 31. second boss; 4. connector; 41. first connecting block; 411. slot; 42. second connecting block; and 5. bone screw. Detailed Implementation

[0018] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0019] This application discloses a bone screw loading box, as shown in the embodiments below. Figure 1 , Figure 2 and Figure 3 The system includes multiple cylindrical bodies 1 for accommodating bone screws 5, each cylindrical body 1 having a detachable upper cover 2 and a lower cover 3 at both ends. The multiple cylindrical bodies 1 are assembled radially, with adjacent cylindrical bodies 1 connected by connectors 4. Connectors 4 include a first connecting block 41 and a second connecting block 42. The first connecting block 41 is integrally fixed to one side of the cylindrical body 1 and has a slot 411 with a size adapted to the second connecting block 42. The second connecting block 42 is integrally fixed to the other side of the cylindrical body 1 and engages with the slot 411 of the adjacent cylindrical body 1.

[0020] In this embodiment, the bone screw 5 loading box is composed of multiple cylindrical bodies 1 containing bone screws 5, each with its own internal space. Medical personnel can remove the corresponding cylindrical body 1 by applying force to pry open the second connecting block 42 and the slot 411 according to the number of bone screws 5 required for the surgery. When bone screws 5 are needed, the sterile bone screws 5 can be removed by opening the top cover 2 separately.

[0021] This application discloses a bone screw loading box, which consists of multiple cylindrical bodies 1 connected to slots 411 via a second connecting block 42. Medical personnel can monitor the number of cylindrical bodies 1 and bone screws 5 in real time, preventing omissions due to the multiple cylindrical bodies 1 being scattered. The corresponding cylindrical body 1 is removed according to the required number of bone screws 5. After use, the remaining unused cylindrical bodies 1, without being exposed to air, can still be recycled, thus saving resources.

[0022] Reference Figure 4 The bone screw 5 includes a head and a threaded part. An annular step 11 with an inner diameter smaller than the outer diameter of the head is coaxially and integrally fixed inside the cylinder 1. The length of the annular step 11 is longer than the length of the threaded part. An installation space for accommodating the head is formed between the annular step 11 and the upper cover 2. After the threaded part passes through the inner side of the annular step 11, the head enters the installation space.

[0023] In this embodiment, the threaded portion of the bone screw 5 is confined to the inside of the annular step 11, and the head is located within the installation space. This prevents the bone screw 5 from tilting inside the cylinder 1. Medical personnel can easily use a screwdriver to align the bone screw 5 and remove it by opening the top cover 2.

[0024] Furthermore, since the length of the annular step 11 is longer than the length of the threaded portion, when the bone screw 5 is installed in the cylinder 1, the end of the threaded portion away from the head never contacts the lower cover 3, thus avoiding wear on the end of the threaded portion.

[0025] Furthermore, a first protrusion 21 for inserting and engaging with one end of the cylinder 1 is integrally fixed on one side of the upper cover 2, and a second protrusion 31 for inserting and engaging with the other end of the cylinder 1 is integrally fixed on one side of the lower cover 3.

[0026] In this embodiment, the first boss 21 and the second boss 31 are inserted into the inner side of the cylinder 1 by an interference fit. When removing the bone screw 5, medical personnel apply force to pull out the top cover 2 to remove the bone screw 5.

[0027] Reference Figure 5 The side wall of the cylinder 1 is provided with a vent 12 for the passage of humid heat sterilization gas at the part that contacts the first protrusion 21. The first protrusion 21 is provided with an exhaust channel 211 for movably connecting the interior of the cylinder 1 and the vent 12.

[0028] In this embodiment, the bone screw 5, in its encapsulated state, has its first protrusion 21 sidewall sealing the vent 12. Due to differences in cost and application requirements, the bone screw 5 is divided into two categories: sterile and non-sterile. The sterile bone screw 5 can be used directly by medical personnel, while the non-sterile bone screw 5 requires on-site sterilization by medical personnel before use.

[0029] The sterile bone screws 5 are provided after being encapsulated inside the casing 1 (e.g., through irradiation sterilization) to maintain their sterility. Medical personnel can directly access the bone screws 5 inside the loading box when they receive the bone screw 5.

[0030] The non-sterile bone screw 5 is only sealed inside the cylinder 1. Before use, medical staff need to open the lower cover 3 and then adjust the upper cover 2 so that the exhaust channel 211 is aligned with the air hole 12. Moist heat sterilization gas is then introduced into the cylinder 1. The moist heat sterilization gas can pass through the exhaust channel 211 and then be discharged through the air hole 12, so that the bone screw 5 can be completely sterilized. After sterilization, the upper cover 2 can be opened to take out the bone screw 5 for use.

[0031] Furthermore, multiple positioning blocks 212 are integrally fixed at even intervals along the circumference of the outer wall of the first boss 21, and multiple positioning grooves 13 with sizes adapted to each positioning block 212 are opened on the inner side wall of the cylinder 1. Two air holes 12 are provided and are respectively located in two of the positioning grooves 13. Two air outlets are provided for the exhaust channel 211, and the two air outlets are respectively located on two of the positioning blocks 212. The air inlet of the exhaust channel 211 is located on the side of the first boss 21 away from the upper cover 2.

[0032] In this embodiment, two positioning blocks 212 without air outlets are inserted into the positioning slots 13 corresponding to the two air holes 12 to seal the air holes 12. Inserting the positioning blocks 212 corresponding to the two air outlets into the positioning slots 13 corresponding to the two air holes 12 connects the exhaust channel 211 and the air hole 12. By engaging the positioning blocks 212 with the positioning slots 13, the air outlets and air holes 12 can be quickly aligned.

[0033] Specifically, the cylinder 1, the upper cover 2, and the lower cover 3 are made of medical-grade polypropylene material.

[0034] The implementation principle of the bone screw loading box in this application embodiment is as follows: The bone screw loading box of this application is assembled by multiple cylinders 1 connected to the slots 411 by a second connecting block 42. Medical staff can check the number of cylinders 1 and bone screws 5 in real time, avoiding the situation where multiple cylinders 1 are scattered and missed. The corresponding cylinder 1 is removed according to the number of bone screws 5 needed, and the bone screws 5 inside the cylinder 1 can be taken out by opening the top cover 2. After use, the bone screws 5 in the remaining unused cylinders 1 are not exposed to the air and can still be recycled, which has the effect of saving resources.

[0035] Those skilled in the art will understand that although preferred embodiments of the present invention have been described, those skilled in the art, once they understand the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if these modifications and modifications of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and modifications.

Claims

1. A bone screw loading box, characterized in that: The device includes multiple cylindrical bodies (1) for accommodating bone screws (5). Each cylindrical body (1) has a top cover (2) and a bottom cover (3) detachably connected to its two ends. The multiple cylindrical bodies (1) are assembled by splicing along their own radial direction. Adjacent cylindrical bodies (1) are connected by a connector (4). The connector (4) includes a first connecting block (41) and a second connecting block (42). The first connecting block (41) is located on one side of the cylindrical body (1) and has a slot (411) with a size adapted to the second connecting block (42). The second connecting block (42) is located on the other side of the cylindrical body (1) and is inserted into the slot (411) of the adjacent cylindrical body (1).

2. The bone screw loading box according to claim 1, characterized in that: The bone screw (5) includes a head and a threaded part. An annular step (11) with an inner diameter smaller than the outer diameter of the head is coaxially fixed inside the cylinder (1). The length of the annular step (11) is longer than the length of the threaded part. An installation space for accommodating the head is formed between the annular step (11) and the top cover (2). After the threaded part passes through the inside of the annular step (11), the head enters the installation space.

3. The bone screw loading box according to claim 1, characterized in that: The upper cover (2) has a first boss (21) fixed on one side for inserting and engaging with one end of the cylinder (1), and the lower cover (3) has a second boss (31) fixed on one side for inserting and engaging with the other end of the cylinder (1).

4. A bone screw loading box according to claim 3, characterized in that: The side wall of the cylinder (1) is provided with a vent (12) for the passage of humid heat sterilization gas at the part that contacts the first boss (21). The first boss (21) is provided with an exhaust channel (211) for movably connecting the inside of the cylinder (1) and the vent (12).

5. A bone screw loading box according to claim 4, characterized in that: The outer wall of the first boss (21) is provided with a plurality of positioning blocks (212) evenly spaced along its circumference. The inner wall of the cylinder (1) is provided with a plurality of positioning grooves (13) of the same size as each positioning block (212). There are two air holes (12) and they are located in two of the positioning grooves (13). There are two air outlets of the exhaust channel (211) and the two air outlets are located on two of the positioning blocks (212). The air inlet of the exhaust channel (211) is located on the side of the first boss (21) away from the top cover (2).

6. A bone screw loading box according to claim 1, characterized in that: The cylinder (1), upper cover (2) and lower cover (3) are made of medical-grade polypropylene material.

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