Bone traction needle hole anti-falling sterile dressing change device

Abstract

This invention discloses a sterile dressing change device for preventing the dislodgement of bone traction pinholes, relating to the field of medical and nursing device technology. It includes a dressing change mechanism with an installation mechanism at its top and a pressing mechanism on the outer side of the top. The invention utilizes an annular embedding groove at the bottom of the sterile gauze layer to provide embedding space for a sealing ring to be embedded internally for sealing. A drug-releasing layer is also provided at the bottom to facilitate covering and applying medication with the sterile gauze layer. A sterile isolation adhesive patch is applied to the outer side of the sterile gauze layer, utilizing its high-density sealing effect to further improve the sealing performance. Several shaped steel wires are distributed on the surface of the sterile gauze layer and connected to the top ring to prevent deformation and ensure a tight seal during application.

Description

Technical Field

[0001] This invention relates to the field of medical and nursing device technology, specifically to a bone traction needle hole anti-dislodgement sterile dressing change device. Background Technology

[0002] Bone traction, a mature and widely used core treatment method in orthopedic clinical practice, works by precisely inserting a traction pin through the fracture site or specific bone area. Using a traction device, continuous and stable traction is applied to achieve reduction and fixation of the fracture ends, gradual correction of limb deformities, or effective relief of soft tissue tension in the injured area, creating favorable conditions for bone healing and functional recovery. During the entire course of bone traction treatment, the pinholes formed by the contact between the traction pin and the patient's skin are exposed to the external environment for extended periods. They are susceptible to various factors such as friction from the traction pin's movement, sweat infiltration, and improper nursing procedures, making them high-risk areas for infection. Infection not only exacerbates patient suffering but may also delay treatment. Furthermore, the stability of the traction pin during treatment directly determines the reliability of the traction effect. If the traction pin becomes loose, displaced, or even falls off, it can lead to fracture reduction failure, poor deformity correction, and in severe cases, complications such as secondary bone injury and tearing of surrounding soft tissues, causing additional physical and psychological harm to the patient.

[0003] In the prior art, such as the patent application CN201620830993.X, "An Orthopedic Nursing Dressing Change Device," the upper surface of the dressing bed is equipped with a headrest at the rear end, and a drawer-type dressing table is provided on one side of the dressing bed. The drawer-type dressing table structure expands the storage space for other dressing instruments, thus broadening the range of dressing options. The structure, consisting of a dressing bed, a left electric angle adjustment device, a right electric angle adjustment device, a left arm support frame, a right arm support frame, a bracket, a pulley system, a traction rope, a left leg support pad, a right leg support pad, a left handle, and a right handle, provides the patient with an integrated dressing change platform. The electric angle adjustment device can automatically adjust the angle between the arm support frame and the dressing bed, ensuring that the patient's arm or dressing area is always in the optimal position. The handle can adjust the height of the pulley system, thereby allowing the left and right leg support pads to rise freely, always keeping the patient's dressing area in the optimal position.

[0004] The complex structure of existing dressing change devices leads to cumbersome operation procedures and high learning difficulty. This not only increases the operational burden on medical staff, but also easily reduces dressing change efficiency due to improper operation or excessively long procedures. In addition, the sealing design of the structure is prone to defects, making it difficult to maintain a sterile environment and resulting in unstable sealing performance, which in turn leads to the risk of wound infection and directly affects the treatment effect and the patient's recovery process. To address the above problems, a bone traction pinhole anti-dislodgement sterile dressing change device is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a sterile dressing change device for preventing the dislodgement of bone traction needle holes, in order to solve the problems mentioned in the background art. The complex structure of the prior art leads to cumbersome operation procedures and high learning difficulty, which not only increases the operational burden of medical staff, but also easily reduces dressing change efficiency due to improper operation or excessive time consumption. In addition, the sealing design of the structure is prone to defects, making it difficult to maintain a sterile environment and unstable sealing performance, which in turn leads to the risk of wound infection and directly affects the treatment effect and the patient's recovery process.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sterile dressing change device for preventing bone traction needle hole dislodgement, comprising a dressing change mechanism, an installation mechanism at the top of the dressing change mechanism, a pressing mechanism on the outer side of the top of the dressing change mechanism, the dressing change mechanism comprising a sterile gauze layer, a sealing ring and a drug sustained-release layer at the bottom of the sterile gauze layer, the drug sustained-release layer being disposed on the outer side of the sealing ring, a sterile isolation adhesive patch being disposed on the outer side of the sterile gauze layer, a first side slot being formed on the sterile gauze layer, a second side slot being formed on the sterile isolation adhesive patch, a long strip covering patch being disposed on the upper surface of the sterile gauze layer, and a square covering patch being disposed on the upper surface of the sterile isolation adhesive patch; The installation mechanism includes an installation sleeve, the bottom of which is connected to the top of a sterile gauze layer. A limiting strip is symmetrically fixedly connected to one side of the installation sleeve. A sliding sleeve is slidably connected to the outer side of the limiting strip. The limiting strip has a positioning groove. A positioning groove is provided on the side of the sliding sleeve. A rotating seat is provided on the side of the sliding sleeve. A limiting block is rotatably connected to the inner side of the rotating seat. The limiting block is movably connected to the inner side of the positioning groove and the positioning slot. A limiting fastener is symmetrically fixedly connected to one side of the sliding sleeve. The limiting block is fastened to the inner side of the limiting fastener.

[0007] Preferably, the pressing mechanism includes two fixed pressing rings, with a silicone base pad at the bottom of the fixed pressing rings and a diagonal support frame at the top of the fixed pressing rings.

[0008] Preferably, the top of the diagonal brace is connected to a fastening kit, the inner side of the fastening kit is connected to an anti-slip rubber sleeve, the outer wall of the anti-slip rubber sleeve has a plurality of sliding parts evenly distributed thereon, the sliding parts are slidably connected to the inner side of the fastening kit, and the inner side of the anti-slip rubber sleeve has a plurality of anti-slip rubber rings evenly distributed thereon.

[0009] Preferably, the fastening kit has splicing plates symmetrically fixedly connected to its outer side, and adjusting bolts are connected through the side of the splicing plates.

[0010] Preferably, the outer wall of the mounting sleeve is evenly distributed with a plurality of outer support rings, and one end of the limiting block is fixedly connected to an operating handle.

[0011] Preferably, the inner side of the mounting sleeve is provided with an inner nest, and a plurality of anti-slip rings are evenly distributed on the inner side of the inner nest.

[0012] Preferably, the bottom of the sterile gauze layer has an annular embedding groove, and the sealing ring is embedded in the inner side of the annular embedding groove.

[0013] Preferably, the upper surface of the sterile gauze layer has a plurality of shaped steel wires evenly distributed radially along the circumferential direction, and the outer side of the shaped steel wires is fixedly connected with a reinforcing rib ring.

[0014] Preferably, a top ring is fixedly connected to the top of the shaping steel wire, and the top ring is disposed on the top of the sterile gauze layer.

[0015] Preferably, the sterile gauze layer has a diameter adjustment groove in the middle, and the bottom of both the long strip cover and the square cover is provided with adhesive.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, an annular embedding groove is provided at the bottom of the sterile gauze layer, providing embedding space to facilitate the embedding of a sealing ring for sealing. A drug-releasing layer is also provided at the bottom to facilitate application of medication in conjunction with the sterile gauze layer. A sterile isolation adhesive patch is applied to the outside of the sterile gauze layer, utilizing its high-density sealing effect to further improve the sealing performance. By distributing several shaped steel wires on the surface of the sterile gauze layer and connecting them to the top ring, the stability of the sterile gauze layer coverage is improved, effectively preventing deformation and ensuring a tight seal during application. The sterile gauze layer and the sterile isolation adhesive tape have a first and a second side groove, facilitating separation during dressing changes and allowing direct application to the outside of the traction needle puncture site, enabling efficient dressing changes. A long strip of covering tape is located at the top of the sterile gauze layer, above the first side groove, to provide a tighter connection. A square covering tape is located above the second side groove to ensure a tight connection with the sterile isolation adhesive tape, effectively improving the performance, ensuring a tight seal, avoiding the risk of wound infection, increasing connection stability, and effectively preventing detachment.

[0017] 2. In this invention, the mounting sleeve is fitted onto the outside of the traction needle during dressing change installation, and a limiting strip is provided on the outside of the mounting sleeve. A sliding sleeve is slidably connected to the outside of the limiting strip, and a rotating seat is provided on the outside of the sliding sleeve to rotatably connect the limiting block. A positioning groove is opened on the side of the limiting strip, and a positioning groove is opened on the side of the sliding sleeve. After sliding, the limiting block is embedded into the inside of the positioning groove and the positioning groove, and further limited by the limiting fastener, which facilitates efficient limiting installation and allows the limiting block to be opened by turning the operating handle, achieving efficient disassembly and facilitating quick dressing change operations. An inner nest and anti-slip ring are provided on the inside of the mounting sleeve to provide a stable pressing effect, which helps to prevent falling off and ensures stability during use.

[0018] 3. In this invention, the top of the sterile isolation adhesive tape is press-fitted and fixed by a fixing ring and a silicone base pad. The top of the fixing ring has several diagonal braces evenly distributed circumferentially, and the top of each brace is fixedly connected to the fastening kit to form a stable clamping support structure. The inner side of the fastening kit is detachably connected to an anti-slip sleeve, which slides against the inner wall of the fastening kit via a sliding component. This allows for quick replacement of the anti-slip sleeve with a suitable size according to the actual diameter of the traction needle, effectively expanding the applicability of the device. The inner wall of the anti-slip sleeve has several anti-slip rings evenly distributed axially. The elastic fit between the anti-slip rings and the outer wall of the traction needle significantly improves the anti-slip performance after clamping. Simultaneously, the fastening kit is fixedly connected to the splicing plate via an adjusting bolt. The locking action of the adjusting bolt ensures the structural stability of each component after installation, further strengthening the anti-dislodgement effect after clamping the traction needle and ensuring reliability during use. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a bone traction needle hole anti-dislodgement sterile dressing device according to the present invention; Figure 2 This is a three-dimensional structural diagram of a bone traction needle hole anti-dislodgement sterile dressing device of the present invention from another angle; Figure 3 This is an exploded structural diagram of a bone traction pinhole anti-dislodgement sterile dressing device according to the present invention. Figure 4 This is a partial structural schematic diagram of a bone traction pinhole anti-dislodgement sterile dressing device according to the present invention. Figure 5 This is an exploded structural diagram of the installation mechanism of the bone traction pinhole anti-dislodgement sterile dressing device of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the diagram; Figure 7This is an exploded view of the installation mechanism of the bone traction pinhole anti-dislodgement sterile dressing device of the present invention from another angle; Figure 8 This is a schematic diagram of the clamping mechanism of a bone traction needle hole anti-dislodgement sterile dressing device according to the present invention; Figure 9 For the present invention Figure 8 A magnified structural diagram at point B in the diagram.

[0020] In the picture: 1. Dressing mechanism; 101. Sterile gauze layer; 102. Annular embedding groove; 103. Sealing ring; 104. Drug sustained-release layer; 105. Sterile isolation adhesive tape; 106. Shaping steel wire; 107. Top ring; 108. First side slot; 109. Second side slot; 110. Diameter adjustment groove; 111. Long strip covering tape; 112. Square covering tape; 2. Installation mechanism; 201. Installation sleeve; 202. Outer support ring; 203. Limiting strip; 204. 205. Sliding sleeve; 206. Operating handle; 207. Positioning slot; 208. Positioning groove; 209. Rotating seat; 210. Limiting block; 211. Limiting fastener; 212. Inner nest; 213. Anti-slip sleeve; 304. Pressing mechanism; 305. Fixed press ring; 306. Silicone base pad; 307. Diagonal brace; 308. Fastening kit; 309. Anti-slip rubber sleeve; 3000. Sliding component; 301. Anti-slip rubber ring; 302. Splicing plate; 303. Adjusting bolt. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1: As Figures 1-9As shown, the present invention provides a technical solution: a sterile dressing change device for preventing the dislodgement of bone traction needle holes, comprising a dressing change mechanism 1, an installation mechanism 2 at the top of the dressing change mechanism 1, a pressing mechanism 3 on the outer side of the top of the dressing change mechanism 1, the dressing change mechanism 1 including a sterile gauze layer 101, a sealing ring 103 and a drug sustained-release layer 104 at the bottom of the sterile gauze layer 101, the drug sustained-release layer 104 being disposed on the outer side of the sealing ring 103, a sterile isolation adhesive patch 105 being disposed on the outer side of the sterile gauze layer 101, a first side slot 108 being formed on the sterile gauze layer 101, a second side slot 109 being formed on the sterile isolation adhesive patch 105, and a long... A strip cover 111 and a square cover 112 are provided on the upper surface of a sterile isolation adhesive tape 105. An annular embedding groove 102 is provided at the bottom of a sterile gauze layer 101. A sealing ring 103 is embedded and connected to the inner side of the annular embedding groove 102. Several shaping steel wires 106 are evenly distributed radially along the circumference on the upper surface of the sterile gauze layer 101. A reinforcing rib ring is fixedly connected to the outer side of the shaping steel wire 106. A top ring 107 is fixedly connected to the top of the shaping steel wire 106. The top ring 107 is located at the top of the sterile gauze layer 101. A diameter adjustment groove 110 is provided in the middle of the sterile gauze layer 101. Adhesive is provided at the bottom of both the strip cover 111 and the square cover 112. The installation mechanism 2 includes an installation sleeve 201. The bottom of the installation sleeve 201 is connected to the top of the sterile gauze layer 101. A limiting strip 203 is symmetrically fixedly connected to one side of the installation sleeve 201. A sliding sleeve 204 is slidably connected to the outer side of the limiting strip 203. The limiting strip 203 has a positioning groove 206. A positioning groove 207 is provided on the side of the sliding sleeve 204. A rotating seat 208 is provided on the side of the sliding sleeve 204. A limiting block 209 is rotatably connected to the inner side of the rotating seat 208. The limiting block 209 is movably connected to the inner side of the positioning groove 206 and the positioning groove 207. A limiting fastener 210 is symmetrically fixedly connected to one side of the sliding sleeve 204. The limiting block 209 is fastened to the inner side of the limiting fastener 210.

[0023] In this embodiment, an annular embedding groove 102 is provided at the bottom of the sterile gauze layer 101, providing embedding space to facilitate the embedding of the sealing ring 103 for sealing. A drug-releasing layer 104 is provided at the bottom to facilitate covering and applying medication to the sterile gauze layer 101. A sterile isolation adhesive patch 105 is provided on the outside of the sterile gauze layer 101, utilizing its high-density sealing effect to further improve the sealing performance. By distributing several shaped steel wires 106 on the surface of the sterile gauze layer 101 and connecting them to the top ring 107, the stability of the sterile gauze layer 101 coverage is improved, effectively preventing deformation and ensuring sealing during application. The first side groove 108 and the second side groove 109 on the sterile gauze layer 101 and the sterile isolation adhesive tape 105 facilitate separation during dressing changes, allowing for direct application to the outside of the traction needle puncture site, thus enabling efficient dressing changes. A long strip covering tape 111 is provided at the top of the sterile gauze layer 101, above the first side groove 108, to provide a tighter connection. A square covering tape 112 is provided above the second side groove 109 to ensure a tight connection with the sterile isolation adhesive tape 105, effectively improving the performance, ensuring sealing, avoiding the risk of wound infection, increasing connection stability, and effectively preventing detachment.

[0024] The mounting sleeve 201 is fitted onto the outside of the traction needle during dressing changes. A limiting strip 203 is provided on the outside of the mounting sleeve 201. A sliding sleeve 204 is slidably connected to the outside of the limiting strip 203. A rotating seat 208 is provided on the outside of the sliding sleeve 204 to rotatably connect to the limiting block 209. A positioning slot 206 is provided on the side of the limiting strip 203, and a positioning groove 207 is provided on the side of the sliding sleeve 204. After sliding, the limiting block 209 is embedded into the positioning groove. The inner side of the positioning groove 207 and the positioning slot 206 is further limited by the limiting fastener 210, which facilitates efficient limiting installation and makes it easy to open the limiting block 209 by turning the operating handle 205, thus achieving efficient disassembly and facilitating quick drug change operations. The inner nest 211 and the anti-slip collar 212 are provided on the inner side of the installation sleeve 201 to provide a stable pressing effect, which helps to prevent falling off and ensures stability during use.

[0025] Example 2: As Figure 8 and Figure 9As shown, the pressing mechanism 3 includes two fixed pressing rings 301. A silicone base pad 302 is provided at the bottom of the fixed pressing ring 301, and a diagonal support frame 303 is provided at the top of the fixed pressing ring 301. A fastening kit 304 is connected to the top of the diagonal support frame 303. An anti-slip rubber sleeve 305 is connected to the inner side of the fastening kit 304. Several sliding parts 306 are evenly distributed on the outer wall of the anti-slip rubber sleeve 305. The sliding parts 306 are slidably connected to the inner side of the fastening kit 304. Several anti-slip rubber rings 307 are evenly distributed on the inner side of the anti-slip rubber sleeve 305. A splicing plate 308 is symmetrically fixedly connected to the outer side of the fastening kit 304. An adjusting bolt 309 is connected through the side of the splicing plate 308.

[0026] In this embodiment, the fixing pressure ring 301 and the silicone base pad 302 form a cooperative pressing structure. Through their tight cooperation, they are stably pressed onto the top end face of the sterile isolation adhesive tape 105. The silicone base pad 302 can effectively fill the assembly gap between the fixing pressure ring 301 and the sterile isolation adhesive tape 105, ensuring the structural sealing after pressing and buffering the local pressure generated during assembly, thus preventing the sterile isolation adhesive tape 105 from breaking due to uneven force. On the top end face of the fixing pressure ring 301, several structurally identical inclined support frames 303 are evenly distributed along its circumference. The bottom of each inclined support frame 303 is fixedly connected to the top end face of the fixing pressure ring 301 by welding or integral molding, while the top is fixedly connected to the outer wall of the fastening kit 304. Through the supporting effect of the inclined support frames 303, the fastening kit 304 is held at a preset height position, providing a stable installation base for the clamping operation of the traction needle and ensuring the uniformity of force transmission during clamping. A non-slip rubber sleeve 305 is detachably installed on the inner wall of the fastening kit 304. This non-slip rubber sleeve 305 is slidably connected to the inner wall of the fastening kit 304 via a sliding component 306. Specifically, the sliding component 306 can adopt a sliding groove and slider cooperation structure. The sliding groove is formed on the inner wall of the fastening kit 304, and the slider is correspondingly located on the outer wall of the non-slip rubber sleeve 305. The non-slip rubber sleeve 305 can be quickly installed and removed by sliding the slider within the sliding groove. This detachable structural design allows operators to quickly replace the non-slip rubber sleeve 305 with a suitable size according to the actual diameter of the traction needle used, without replacing the entire fastening kit 304. This greatly simplifies the adaptation process, significantly improves the applicability of the device to traction needles of different diameters, and enhances the versatility and practicality of the equipment.

[0027] Furthermore, on the inner wall of the anti-slip sleeve 305, several integrally formed anti-slip rings 307 are evenly distributed along its axial direction. Each anti-slip ring 307 has a ring structure, and its inner diameter is slightly smaller than the reference inner diameter of the inner wall of the anti-slip sleeve 305. When the traction needle is inserted into the anti-slip sleeve 305, the anti-slip ring 307 will undergo elastic deformation due to the compression of the traction needle. The radial clamping force generated by the elastic deformation tightly adheres to the outer wall of the traction needle. At the same time, by utilizing the high coefficient of friction of the anti-slip ring 307 itself, the friction between the anti-slip sleeve 305 and the traction needle is effectively increased, thereby achieving a reliable anti-slip effect and preventing the traction needle from sliding axially during use. In addition, the device is equipped with an adjusting bolt 309, which passes through the side wall of the fastening kit 304 and is fixedly connected to the splicing plate 308. The splicing plate 308 is correspondingly located at the end of the anti-slip rubber sleeve 305. By tightening the adjusting bolt 309, the splicing plate 308 can be pushed to apply axial pressure to the anti-slip rubber sleeve 305, ensuring the stability of the installation position of the anti-slip rubber sleeve 305 in the fastening kit 304, preventing it from shifting during clamping or traction, further improving the anti-drop performance of the traction needle after clamping, and ensuring the safety and reliability of the entire operation process.

[0028] Example 3: As Figures 5-7 As shown, the outer wall of the mounting sleeve 201 is evenly distributed with several outer support rings 202, one end of the limiting block 209 is fixedly connected to the operating handle 205, and the inner side of the mounting sleeve 201 is provided with an inner nest 211, and the inner side of the inner nest 211 is evenly distributed with several anti-slip rings 212.

[0029] In this embodiment, the outer support ring 202 is evenly distributed along the outer circumference of the mounting sleeve 201 and is fixedly connected to the mounting sleeve 201. Through the rigid support of the outer support ring 202, the overall structural support strength of the mounting sleeve 201 can be significantly enhanced, effectively resisting radial loads and external impacts that may be encountered during use. This ensures the installation stability and positional accuracy of the mounting sleeve 201 under long-term use or complex working conditions, avoiding problems such as deformation and displacement of the mounting sleeve 201 due to insufficient support strength, and greatly improving the overall reliability and operating effect of the equipment. The operating handle 205 and the limiting block 209 adopt an integrated molding or detachable fixed connection structure. The operator can manually turn the operating handle 205 to directly drive the limiting block 209 to rotate or move linearly around the connecting fulcrum, thereby quickly realizing the limiting block 209's limiting locking or unlocking function for the target component. This replaces the traditional complex adjustment mechanism, significantly improving the convenience and efficiency of operation and reducing the intensity of manual operation. The inner nest 211 is coaxially disposed in the internal cavity of the mounting sleeve 201, and the outer wall of the inner nest 211 is tightly fitted with the inner wall of the mounting sleeve 201. The anti-slip ring 212 is fitted on the inner wall or end position of the inner nest 211. Through the rigid internal support provided by the inner nest 211 and the anti-slip resistance increase effect of the anti-slip ring 212, the connection tightness and fit stability between the mounting sleeve 201 and the internal components to be installed can be effectively improved, preventing relative sliding or loosening during use. This provides a reliable guarantee for the assembly accuracy and operational stability of the equipment, ensuring the consistency and durability of the installation effect.

[0030] In this invention, the bone traction needle hole anti-dislodgement sterile dressing device, when in use, firstly, an annular embedding groove 102 is provided at the bottom of the sterile gauze layer 101. The annular embedding groove 102 provides embedding space, facilitating the embedding of the sealing ring 103 to provide a sealing effect. Secondly, a drug sustained-release layer 104 is provided at the bottom to facilitate covering and applying medication to the sterile gauze layer 101. Thirdly, a sterile isolation adhesive patch 105 is provided on the outside of the sterile gauze layer 101, utilizing its high-density sealing effect to further improve the sealing performance. By distributing several shaped steel wires 106 on the surface of the sterile gauze layer 101 and connecting them to the top ring 107, the stability of the sterile gauze layer 101 coverage is improved, effectively preventing deformation and ensuring sealing during application. The first side groove 108 and the second side groove 109 on the sterile gauze layer 101 and the sterile isolation adhesive 105 facilitate separation during dressing changes, allowing for direct application to the outside of the traction needle puncture site, thus enabling efficient dressing changes. A long strip covering 111 is provided at the top of the sterile gauze layer 101, above the opening of the first side groove 108, to provide a tighter connection. A square covering 112 is provided above the second side groove 109 to facilitate a tight connection with the sterile isolation adhesive 105, effectively improving the performance and ensuring a tight seal.

[0031] The mounting sleeve 201 is fitted onto the outside of the traction needle during dressing changes. A limiting strip 203 is provided on the outside of the mounting sleeve 201. A sliding sleeve 204 is slidably connected to the outside of the limiting strip 203. A rotating seat 208 is provided on the outside of the sliding sleeve 204 to rotatably connect to the limiting block 209. A positioning slot 206 is provided on the side of the limiting strip 203, and a positioning groove 207 is provided on the side of the sliding sleeve 204. After sliding, the limiting block 209 is embedded into the inner side of the positioning groove 207 and the positioning slot 206, and further secured by the limiting fastener 210. The step limiter facilitates efficient installation and allows for easy disassembly by opening the limit block 209 via the operating handle 205, enabling quick medication replacement. An inner nest 211 and an anti-slip ring 212 are provided on the inner side of the mounting sleeve 201 to provide stable pressing and prevent detachment, ensuring stability during use. Outer support rings 202 distributed on the outer side of the mounting sleeve 201 increase support strength, further ensuring the stability of the mounting sleeve 201 and effectively improving its performance.

[0032] The fixing ring 301 is pressed onto the top of the sterile isolation adhesive tape 105 with the silicone base pad 302. Several diagonal braces 303 are evenly distributed on the top of the fixing ring 301. Fastening kits 304 are fixedly connected to the top of the diagonal braces 303 to facilitate clamping. Anti-slip rubber sleeves 305 are provided on the inner side of the fastening kits 304 and are connected to the inner side of the fastening kits 304 with the sliding parts 306, which facilitates quick replacement according to the diameter of the traction needle and improves the applicability. Several anti-slip rubber rings 307 are evenly distributed on the inner wall of the anti-slip rubber sleeves 305 to provide anti-slip performance. The adjusting bolts 309 are used to fix the position of the splicing plate 308 to ensure the stability after installation and further improve the anti-fall-off performance.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sterile dressing change device for preventing bone traction needle dislodgement, comprising a dressing change mechanism (1), characterized in that: The dressing change mechanism (1) is provided with an installation mechanism (2) at the top and a pressing mechanism (3) on the outer side of the top of the dressing change mechanism (1). The dressing change mechanism (1) includes a sterile gauze layer (101). A sealing ring (103) and a drug sustained-release layer (104) are provided at the bottom of the sterile gauze layer (101). The drug sustained-release layer (104) is located on the outer side of the sealing ring (103). A sterile isolation adhesive tape (105) is provided on the outer side of the sterile gauze layer (101). A first side slot (108) is provided on the sterile gauze layer (101). A second side slot (109) is provided on the sterile isolation adhesive tape (105). A long strip covering tape (111) is provided on the upper surface of the sterile gauze layer (101). A square covering tape (112) is provided on the upper surface of the sterile isolation adhesive tape (105). The installation mechanism (2) includes an installation sleeve (201), the bottom of which is connected to the top of a sterile gauze layer (101). A limiting strip (203) is symmetrically fixedly connected to one side of the installation sleeve (201). A sliding sleeve (204) is slidably connected to the outer side of the limiting strip (203). The limiting strip (203) has a positioning groove (206). A positioning groove (207) is provided on the side of the sliding sleeve (204). A rotating seat (208) is provided on the side of the sliding sleeve (204). A limiting block (209) is rotatably connected to the inner side of the rotating seat (208). The limiting block (209) is movably connected to the inner side of the positioning groove (206) and the positioning groove (207). A limiting fastener (210) is symmetrically fixedly connected to one side of the sliding sleeve (204). The limiting block (209) is fastened to the inner side of the limiting fastener (210).

2. The bone traction pinhole anti-dislodgement aseptic dressing device according to claim 1, characterized in that: The pressing mechanism (3) includes two fixed pressing rings (301), the bottom of the fixed pressing ring (301) is provided with a silicone base pad (302), and the top of the fixed pressing ring (301) is provided with a diagonal support frame (303).

3. The bone traction pinhole anti-dislodgement aseptic dressing device according to claim 2, characterized in that: The top of the diagonal brace (303) is connected to a fastening kit (304), and the inner side of the fastening kit (304) is connected to an anti-slip rubber sleeve (305). The outer wall of the anti-slip rubber sleeve (305) is evenly distributed with a number of sliding parts (306). The sliding parts (306) are slidably connected to the inner side of the fastening kit (304). The inner side of the anti-slip rubber sleeve (305) is evenly distributed with a number of anti-slip rubber rings (307).

4. The bone traction pinhole anti-dislodgement aseptic dressing device according to claim 3, characterized in that: The fastening kit (304) is symmetrically fixed to the outer side of a splicing plate (308), and an adjusting bolt (309) is connected through the side of the splicing plate (308).

5. The bone traction pinhole anti-dislodgement aseptic dressing device according to claim 1, characterized in that: The outer wall of the mounting sleeve (201) is evenly distributed with a number of outer support rings (202), and one end of the limiting block (209) is fixedly connected to an operating handle (205).

6. The bone traction pinhole anti-dislodgement aseptic dressing device according to claim 5, characterized in that: The inner side of the mounting sleeve (201) is provided with an inner nest (211), and a number of anti-slip rings (212) are evenly distributed on the inner side of the inner nest (211).

7. The bone traction pinhole anti-dislodgement aseptic dressing device according to claim 1, characterized in that: The bottom of the sterile gauze layer (101) is provided with an annular embedding groove (102), and the sealing ring (103) is embedded and connected to the inside of the annular embedding groove (102).

8. The bone traction pinhole anti-dislodgement aseptic dressing device according to claim 7, characterized in that: The upper surface of the sterile gauze layer (101) has a number of shaped steel wires (106) evenly distributed radially along the circumferential direction, and the outer side of the shaped steel wires (106) is fixedly connected with a reinforcing rib ring.

9. The bone traction pinhole anti-dislodgement aseptic dressing device according to claim 8, characterized in that: The top of the shaping steel wire (106) is fixedly connected to a top ring (107), which is located on top of the sterile gauze layer (101).

10. The bone traction pinhole anti-dislodgement aseptic dressing device according to claim 9, characterized in that: The sterile gauze layer (101) is provided with a diameter adjustment groove (110) in the middle, and the bottom of the long strip cover (111) and the square cover (112) are provided with adhesive.

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