Fixing device for ultrasound-assisted midline catheter indwelling

Abstract

The utility model relates to the technical field of medical instruments, and discloses a fixing device for ultrasound-assisted midline catheter indwelling, which comprises a main body part, the main body part comprises a rod body and a clamping piece for clamping an ultrasonic probe, one side of the rod body close to the clamping piece is provided with a sliding rail, the sliding rail extends along the length direction of the rod body, and the rod body is provided with a sliding groove. A sliding block is arranged on the side, close to the rod body, of the clamping piece, and the clamping piece is slidably connected with the sliding rail through the sliding block. The handle part is arranged below the main body part, the handle part is detachably connected with the main body part, and a placing groove for placing an arm is formed in the handle part; when sliding in the length direction of the rod body, the clamping piece gradually gets close to or away from the containing groove. Through the mutual cooperation of the main body part and the handle part, the problems that in the prior art, medical staff cannot independently complete centerline catheter puncture operation, a fixing device is large in size and complex in structure, and substandard disinfection is prone to occurring are effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a fixation device for ultrasound-assisted midline catheter placement. Background Technology

[0002] Midline catheterization is a medical procedure in which a midline catheter is inserted through a peripheral vein (such as a vein in the cubital fossa). Its main purpose is to provide patients with a stable and safe venous access. In clinical practice, midline catheter puncture is usually performed by fixing an ultrasound probe above the patient's blood vessel for guidance, while the other hand performs the puncture through the midline catheter.

[0003] Currently, when performing midline catheter placement, medical staff need to hold the ultrasound probe in one hand and fix it above the patient's blood vessel for guidance, while using the other hand to perform the puncture. This makes it impossible for them to use a third hand to fix the skin and blood vessels, resulting in medical staff being unable to independently complete the midline catheter puncture procedure. In addition, midline catheter placement is a strictly aseptic technique with certain aseptic requirements for the items used. The fixation device for the ultrasound probe is mostly a fixation frame, which is large and complex in structure. Even when wiping with disinfectant, there will still be areas that are not disinfected to the required standard. Utility Model Content

[0004] The technical problem this invention aims to solve is that medical staff cannot independently perform midline catheter puncture procedures, and the fixation device is large in size and complex in structure, making it prone to substandard disinfection.

[0005] To address the aforementioned technical problems, this utility model provides a fixing device for ultrasound-assisted midline catheter placement, comprising a main body, which includes a rod and a clamping member for holding an ultrasound probe. A slide rail is provided on the side of the rod near the clamping member, extending along the length of the rod. A slider is provided on the side of the clamping member near the rod, and the clamping member is slidably connected to the slide rail via the slider. A handle is located below the main body and is detachably connected to the main body. The handle has a placement groove for placing an arm. As the clamping member slides along the length of the rod, it gradually approaches or moves away from the placement groove.

[0006] In one embodiment, the clamping member includes a telescopic bar, one end of which is connected to the slider, and the telescopic bar reciprocates in a direction perpendicular to the rod.

[0007] In one embodiment, the clamping member further includes a clamping head, which is disposed at the end of the telescopic bar away from the slider. The clamping head is provided with a slot, which engages with the ultrasonic probe.

[0008] In one embodiment, the clamping member further includes a rotating shaft located between the clamping head and the telescopic bar. One end of the rotating shaft is connected to the telescopic bar, and the other end of the rotating shaft is rotatably connected to the clamping head. The clamping head reciprocates along the circumference of the rotating shaft.

[0009] In one embodiment, the handle is inserted into the rod body, and the inner wall of the rod body near the handle is provided with an internal thread, and the outer wall of the handle near the rod body is provided with an external thread that mates with the internal thread. The handle is threadedly connected to the rod body through the internal and external threads.

[0010] Furthermore, when the handle is threaded to the rod body via internal and external threads, the device is in an extended state.

[0011] In one embodiment, a first contact surface is provided on one side of the handle portion, and a second contact surface is provided on one side of the rod body to cooperate with the first contact surface, and the first contact surface and the second contact surface are in contact with each other.

[0012] Furthermore, when the first and second bonding surfaces are bonded together, the device is in a folded state.

[0013] In one embodiment, a fixing ring is provided on the handle portion, and a fixing hook is provided on the fixing ring. The fixing hook is wrapped around the outer periphery of the handle portion and the main body portion, and is fixedly connected to the fixing ring after wrapping around the handle portion and the main body portion once.

[0014] In one embodiment, the placement slot has a U-shaped structure.

[0015] Compared with the prior art, the present invention provides a fixing device for ultrasound-assisted midline catheter placement, which has the following advantages: 1) The main body includes a rod and a clamping component. The rod serves as the main support structure of the entire device and has sufficient strength and stability to ensure stability during catheter placement. The clamping component is used to clamp the ultrasound probe to ensure its stable position, thus replacing the need for medical personnel to hold the ultrasound probe for guidance during midline catheter placement. The slide rail extends along the length of the rod, and the clamping component is slidably connected to the slide rail via a slider. This design allows the clamping component to slide along the length of the rod, thereby adjusting the position of the ultrasound probe to ensure that medical personnel can independently complete the midline catheter puncture operation; 2) The handle is provided with a placement groove for placing the arm, which facilitates the patient to place the arm in a fixed position during catheter placement to reduce arm movement and discomfort. At the same time, the handle and the main body are detachably connected, which facilitates the cleaning, disinfection, and maintenance of the device, and also improves the flexibility and applicability of the device. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of the fixation device for ultrasound-assisted midline catheter placement in a folded state according to an embodiment of the present invention.

[0017] Figure 2 This is a front view of the fixing device for ultrasound-assisted midline catheter placement in a folded state according to an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of the fixation device for ultrasound-assisted midline catheter placement in an extended state according to an embodiment of the present invention.

[0019] Figure 4 This is a front view of the fixation device for ultrasound-assisted midline catheter placement in an extended state, according to an embodiment of this utility model.

[0020] Figure 5 This is a schematic diagram of the clamping component of the fixing device for ultrasound-assisted midline catheter placement according to an embodiment of the present invention.

[0021] In the figure, 1 is the main body; 11 is the rod; 111 is the slide rail; 112 is the second contact surface; 12 is the clamping component; 121 is the slider; 122 is the telescopic rail; 123 is the rotating shaft; 124 is the clamping head; and 1241 is the slot.

[0022] 2. Handle section; 21. First contact surface; 22. Fixing ring; 23. Fixing hook; 24. Placement slot. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0024] In the description of this utility model, it should be understood that when an element is referred to as "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to or indirectly connected to the other element. The terms "mounted," "connected," and "attached" should be interpreted broadly, for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0025] In the description of this utility model, it should be understood that the terms "height," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0027] like Figures 1 to 5 As shown, the present invention preferably provides a fixing device for ultrasound-assisted midline catheter placement, which includes a main body 1, the main body 1 including a rod 11 and a clamping member 12 for clamping an ultrasound probe. A slide rail 111 is provided on the side of the rod 11 near the clamping member 12, the slide rail 111 extends along the length direction of the rod 11, and a slider 121 is provided on the side of the clamping member 12 near the rod 11. The clamping member 12 is slidably connected to the slide rail 111 through the slider 121. A handle 2 is provided below the main body 1 and is detachably connected to the main body 1. A placement groove 24 for placing an arm is provided on the handle 2. When the clamping member 12 slides along the length direction of the rod 11, it gradually moves closer to or away from the placement groove 24.

[0028] Based on the above technical features, this utility model embodiment uses a rod 11 and a clamping member 12. The rod 11 serves as the main support structure of the entire device, possessing sufficient strength and stability to ensure stability during catheter placement. The clamping member 12 is used to clamp the ultrasound probe, ensuring its stable position, thus replacing the need for medical personnel to hold the ultrasound probe for guidance during midline catheter placement. The slide rail 111 extends along the length of the rod 11, and the clamping member 12 is slidably connected to the slide rail 111 via a slider 121. This design allows the clamping member 12 to slide along the length of the rod 11, thereby adjusting the position of the ultrasound probe to ensure that medical personnel can independently complete the midline catheter puncture operation. The handle 2 is provided with a placement groove 24 for placing the arm, making it convenient for the patient to place their arm in a fixed position during catheter placement, reducing arm movement and discomfort. At the same time, the handle 2 and the main body 1 are detachably connected, which facilitates the cleaning, disinfection, and maintenance of the device.

[0029] As some embodiments of this utility model, such as Figures 1 to 4 As shown, the clamping member 12 includes a telescopic bar 122, one end of which is connected to the slider 121, and the telescopic bar 122 reciprocates in a direction perpendicular to the rod 11. This design allows the clamping member 12 to be adjusted horizontally, enabling the ultrasound probe to be adjusted to accommodate different placement positions.

[0030] As some embodiments of this utility model, such as Figure 5 As shown, the clamping member 12 also includes a clamping head 124, which is located at the end of the telescopic bar 122 opposite to the slider 121. The clamping head 124 has a slot 1241 that engages with the ultrasound probe. The ultrasound probe is inserted into the slot 1241 from top to bottom. The design of the slot 1241 allows the ultrasound probe to be inserted from top to bottom, thus fixing the position of the ultrasound probe. During the placement process, the ultrasound probe can remain stable and will not affect the placement accuracy due to movement. At the same time, by fixing the ultrasound probe with the slot 1241, medical staff can more easily perform ultrasound-guided placement operations, eliminating the need for medical staff to hold the ultrasound probe during the placement process.

[0031] As some embodiments of this utility model, such as Figure 5 As shown, the clamping component 12 also includes a rotating shaft 123, located between the clamping head 124 and the telescopic barrier 122. One end of the rotating shaft 123 is connected to the telescopic barrier 122, and the other end is rotatably connected to the clamping head 124. The clamping head 124 reciprocates around the circumference of the rotating shaft 123. Through the design of the rotating shaft 123, located between the clamping head 124 and the telescopic barrier 122, with one end connected to the telescopic barrier 122 and the other end rotatably connected to the clamping head 124, this connection method allows the clamping head 124 to reciprocate under the drive of the rotating shaft 123. This design allows the clamping head 124 to more flexibly adapt to the needs of different placement positions and angles. Whether for straight or angled placement, the clamping head 124 can find the optimal position through oscillation, ensuring stable clamping and precise placement of the ultrasound probe.

[0032] As some embodiments of this utility model, such as Figures 3 to 4As shown, the handle part 2 is inserted into the rod body 11. The inner wall of the rod body 11 near the handle part 2 has an internal thread, and the outer wall of the handle part 2 near the rod body 11 has an external thread that mates with the internal thread. The handle part 2 is threadedly connected to the rod body 11 via the internal and external threads, and the device is in its extended state at this time. This threaded connection provides extremely high stability. During tube placement, the handle part 2 needs to withstand certain tensile and compressive forces, and the threaded connection effectively prevents loosening or detachment between the handle part 2 and the rod body 11, ensuring operational stability and safety. Furthermore, the threaded connection is not only secure but also facilitates disassembly and assembly. Medical personnel can easily connect or disassemble the handle part 2 to the rod body 11 as needed, making the device more portable, easier to store, and easier to maintain.

[0033] As some embodiments of this utility model, such as Figures 1 to 2 As shown, a first contact surface 21 is provided on one side of the handle 2, and a second contact surface 112 that mates with the first contact surface 21 is provided on one side of the rod 11. When the first contact surface 21 and the second contact surface 112 are in contact with each other, the device is in a folded state. The first contact surface 21 is provided on one side of the handle 2. This contact surface is usually smooth and has a certain area so as to fit tightly with the second contact surface 112 on the rod 11. The second contact surface 112 that mates with the first contact surface 21 is provided on one side of the rod 11. The shape, size and material of these two contact surfaces are carefully designed to ensure that they can fit tightly together. When the first contact surface 21 and the second contact surface 112 are in contact with each other, the entire fixing device will present a compact folded state, which makes it easier to carry and store.

[0034] As some embodiments of this utility model, such as Figures 1 to 2 As shown, a fixing ring 22 is provided on the handle part 2, and a fixing hook 23 is provided on the fixing ring 22. The fixing hook 23 is wrapped around the outer periphery of the handle part 2 and the main body part 1, and after wrapping around the handle part 2 and the main body part 1 once, the fixing hook 23 is fixedly connected to the fixing ring 22. Through the design of the fixing ring 22 and the fixing hook 23, medical staff can limit and fix the handle part 2 and the main body part 1 when the device is in the folded state. When the fixing device is in the folded state, the fixing hook 23 will wrap around the outer periphery of the handle part 2 and the main body part 1. After wrapping around once, the fixing hook 23 will connect with the fixing ring 22 to form a firm fixing connection, thereby tightly fixing the handle part 2 and the main body part 1 together and preventing the device from accidentally falling apart when folded.

[0035] As some embodiments of this utility model, such as Figure 3As shown, the placement slot 24 has a U-shaped structure. The main purpose of the U-shaped structure is to restrict the horizontal movement of the patient's arm during midline catheter placement. This restriction helps prevent the patient from accidentally touching or interfering with the medical device, thereby ensuring the safety and effectiveness of the midline catheter placement process.

[0036] In summary, the present invention provides a fixation device for ultrasound-assisted midline catheter placement. Compared with the prior art, its advantages are as follows: The main body 1 includes a rod 11 and a clamping member 12. The rod 11 serves as the main support structure of the entire device, possessing sufficient strength and stability to ensure stability during catheter placement. The clamping member 12 is used to clamp the ultrasound probe, ensuring its stable position, thus replacing the need for medical personnel to hold the ultrasound probe for guidance during midline catheter placement. The slide rail 111 extends along the length of the rod 11, and the clamping member 12 is connected by a slide rail. Block 121 is slidably connected to slide rail 111. This design allows clamp 12 to slide along the length of rod 11, thereby adjusting the position of ultrasound probe to ensure that medical staff can independently complete midline catheter puncture. The handle 2 is provided with a placement slot 24 for placing the arm, which makes it convenient for the patient to place the arm in a fixed position during catheter placement to reduce arm movement and discomfort. At the same time, the handle 2 and the main body 1 are detachably connected. This design facilitates the cleaning, disinfection and maintenance of the device, and also improves the flexibility and applicability of the device.

[0037] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A fixation device for ultrasound-assisted midline catheter placement, characterized in that, include: The main body includes a rod and a clamping member for holding an ultrasonic probe. A slide rail is provided on the side of the rod near the clamping member, and the slide rail extends along the length of the rod. A slider is provided on the side of the clamping member near the rod, and the clamping member is slidably connected to the slide rail through the slider. The handle is located below the main body and is detachably connected to the main body. The handle has a slot for placing an arm. As the clamping member slides along the length of the rod, it gradually moves closer to or further away from the placement groove.

2. The fixation device for ultrasound-assisted midline catheter placement according to claim 1, characterized in that, The clamping member includes a telescopic bar, one end of which is connected to the slider, and the telescopic bar reciprocates in a direction perpendicular to the rod.

3. The fixation device for ultrasound-assisted midline catheter placement according to claim 2, characterized in that, The clamping component also includes a clamping head, which is disposed at the end of the telescopic bar opposite to the slider. The clamping head is provided with a slot, which engages with the ultrasonic probe.

4. The fixation device for ultrasound-assisted midline catheter placement according to claim 3, characterized in that, The clamping component also includes a rotating shaft, which is located between the clamping head and the telescopic bar. One end of the rotating shaft is connected to the telescopic bar, and the other end of the rotating shaft is rotatably connected to the clamping head. The clamping head reciprocates around the circumference of the rotating shaft.

5. The fixation device for ultrasound-assisted midline catheter placement according to claim 1, characterized in that, The handle portion is inserted into the rod body. The inner wall of the rod body near the handle portion has an internal thread, and the outer wall of the handle portion near the rod body has an external thread that mates with the internal thread.

6. The fixation device for ultrasound-assisted midline catheter placement according to claim 5, characterized in that, One side of the handle is provided with a first contact surface, and one side of the rod is provided with a second contact surface that mates with the first contact surface. The first contact surface and the second contact surface are in contact with each other.

7. The fixation device for ultrasound-assisted midline catheter placement according to claim 6, characterized in that, A fixing ring is provided on the handle portion, and a fixing hook is provided on the fixing ring. The fixing hook is wrapped around the outer periphery of the handle portion and the main body portion, and the fixing hook is fixedly connected to the fixing ring after wrapping around the handle portion and the main body portion once.

8. The fixation device for ultrasound-assisted midline catheter placement according to claim 1, characterized in that, The placement slot has a U-shaped structure.

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