Microcatheter shaping device

Abstract

This invention discloses a microcatheter shaping device, including a support and shaping rods. Multiple shaping rods are mounted on the support, and each shaping rod has a different curvature. Each shaping rod contains an electric heating wire. Using this microcatheter shaping device, multiple pre-prepared shaping rods can be used to quickly and conveniently shape the microcatheter, improving both shaping efficiency and accuracy.

Description

Technical Field

[0001] This invention specifically relates to a microcatheter shaping device. Background Technology

[0002] Microcatheters are catheters with a smaller diameter than conventional catheters. Their small size makes them ideal for navigating and maneuvering within blood vessels, leading to their increasing use in minimally invasive interventional procedures. Microcatheters can be used for guidewire support / exchange, lesion passage, delivery of embolic agents, stents, etc., and are widely used in coronary interventional therapy for complex lesions such as completely or subtotal occlusions, bifurcation lesions, severely calcified lesions, and severely tortuous lesions.

[0003] Microcatheter shaping is a fundamental and crucial technique in intracranial aneurysm embolization. It requires shaping according to the vessel morphology to avoid unnecessary attempts at placement and disturbance to the aneurysm, thereby shortening the operation time and reducing complications. In current techniques, because microcatheters are difficult to bend into the desired shape by external force, they are usually softened with hot water before being shaped by external force. This method is inefficient, and the curvature of the artificial shaping is not precise enough. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention proposes a microcatheter shaping device that can quickly and conveniently shape microcatheters into different shapes.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a microcatheter shaping device, comprising a support and shaping rods, wherein multiple shaping rods are disposed on the support and the curvature of the multiple shaping rods is different, and each shaping rod is provided with an electric heating wire.

[0006] In use, select a shaping rod with the corresponding curvature according to the desired shape, heat the shaping rod and insert it into the microcatheter to soften and shape it into the curvature of the shaping rod. Then turn off the heating of the shaping rod, and after the microcatheter cools down, it can be removed to obtain the desired shape.

[0007] The beneficial effects of the aforementioned microcatheter shaping device are: by using multiple pre-prepared shaping rods, the microcatheter can be shaped quickly and conveniently, which not only improves shaping efficiency but also enhances shaping accuracy.

[0008] Furthermore, it also includes an extension mechanism, which includes a rotating disk and a sliding rod. The rotating disk is rotatably mounted in the bracket, and the rotating disk has multiple circumferential grooves. The two ends of the grooves are located at different positions in the radial direction of the rotating disk. The sliding rod is arranged in the radial direction of the rotating disk and is slidably connected to the grooves.

[0009] The shaping rod is mounted on the slide rod, and the outer wall of the bracket has multiple through slots that connect to the interior in a circumferential direction, through which the shaping rod can extend.

[0010] When not in use, the shaping rod is stored inside the holder to ensure its cleanliness and hygiene. In use, by rotating the rotating disc, the sliding rod moves radially along the rotating disc under the action of the sliding groove, thereby moving the shaping rod radially along the rotating disc and extending it out of the through slot.

[0011] Furthermore, the inner wall of the bracket is provided with multiple sets of limiting blocks in the circumferential direction. The multiple sets of limiting blocks are arranged corresponding to the through groove, and each set is provided with two limiting blocks. The slide rod is slidably inserted between the two limiting blocks.

[0012] The limit block is used to ensure that the slider can only move radially along the rotating disk, preventing it from rotating with the slide and the rotating disk.

[0013] Furthermore, the end of the slide bar away from the through groove is provided with a conductive sheet connected to the electric heating wire, and the limiting block is provided with a conductive sheet connected to the power supply, and the two conductive sheets can contact each other.

[0014] As the slide bar moves on the rotating disk, it causes the shaping rod to extend out of the support from the through slot until it extends to the specified length. Then, the two conductive plates come into contact, energizing the heating wire and heating the shaping rod for microcatheter shaping. This eliminates the need for the user to turn on the power.

[0015] Furthermore, the inner wall of the bracket is provided with multiple baffles in the circumferential direction. The baffles are vertically movable on the inner wall of the bracket and can block the through slot. The baffles are provided with limit slots in the circumferential direction around the rotating disk, and one end of the limit slots gradually rises vertically towards the other end. The bracket is provided with an ultraviolet disinfection lamp.

[0016] The rotating disk is provided with a plurality of push rods in a circumferential manner. One end of each push rod is fixedly mounted on the rotating disk, and the other end is slidably mounted in a limiting groove.

[0017] When the rotating disc rotates, it drives the push rod to rotate as well. The other end of the push rod is located in the limiting groove of the baffle. As the height of the limiting groove gradually changes, the push rod can push the baffle up or down, causing the baffle to open the through slot. When the device is not in use, the baffle can block the through slot, ensuring that the internal space is isolated from the outside, thus improving sealing and hygiene.

[0018] Furthermore, a support column is fixedly installed inside the bracket, and multiple rotating disks are provided along the axial direction of the support column and are rotatably sleeved on the support column. Multiple shaping rods are arranged on different rotating disks, and the through grooves are correspondingly located at different axial height positions of the bracket.

[0019] Multiple rotating discs are used to install different shaping rods, and the through slots are also located at different heights to stagger the shaping rods. By setting each shaping rod as an independent mechanism, only the required shaping rod can be selected and extended each time it is used, without exposing the rest of the shaping rods.

[0020] Furthermore, the support column is provided with a sliding plug rod along the axial direction, and the inner wall of the support column is provided with through holes and strip holes. Multiple through holes are arranged sequentially along the axial direction of the support column and extend in an arc shape around the circumference of the support column. The strip holes are arranged along the axial direction of the support column and are connected to multiple through holes in sequence.

[0021] The lever is provided with a lever block that is slidably connected to the through hole and the strip hole. The rotating disk is provided with a stop block. The stop block is concave and slidably connected to the through hole. The lever block can pass through the stop block.

[0022] When selecting the shaping rod, slide the lever inside the support column, and the lever block also slides inside the strip hole, passing through different through holes in sequence until it reaches the rotating disk corresponding to the desired shaping rod. Insert the lever block into the recess of the stop block, and then rotate the lever to make the lever block drive the stop block and the rotating disk to rotate circumferentially, thereby driving the slide rod to move and extend the shaping rod.

[0023] Furthermore, the surface of the lever is provided with axial markings.

[0024] The scale markings allow users to easily observe the insertion depth of the lever so that it can be inserted into the corresponding stop on the rotating disc. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0026] Figure 1 This is a front view of a microcatheter shaping device provided in an embodiment of the present invention;

[0027] Figure 2 for Figure 1 Top sectional view of the microcatheter shaping device shown;

[0028] Figure 3 for Figure 1 Partial front sectional view of the microcatheter shaping device shown;

[0029] Figure 4 for Figure 3 The front view of the baffle of the microcatheter shaping device shown;

[0030] Figure 5 for Figure 3 A cross-sectional view of the support column of the microcatheter shaping device shown;

[0031] Figure 6 for Figure 5 An internal side view of the support pillar of the microcatheter shaping device shown;

[0032] Figure label:

[0033] 10-Bracket, 11-Through groove, 12-Support column, 121-Through hole, 122-Strip hole, 13-Toggle rod, 131-Toggle block;

[0034] 20-Shaping rod;

[0035] 30-Extension mechanism, 31-Rotating disk, 311-Slide groove, 312-Stop block, 32-Slide rod, 33-Limit block, 34-Baffle, 341-Limit groove, 35-Push rod. Detailed Implementation

[0036] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0037] Please see Figures 1 to 6 The present invention provides a microcatheter shaping device, including a support 10 and shaping rods 20. Multiple shaping rods 20 are disposed on the support 10, and the curvature of the multiple shaping rods is different. Each shaping rod 20 is provided with an electric heating wire for quickly and accurately shaping the microcatheter.

[0038] In use, select the shaping rod 20 with the corresponding curvature according to the shape to be shaped, heat the shaping rod and insert it into the microcatheter to soften and shape it into the curvature of the shaping rod. Then turn off the heating of the shaping rod, and after the microcatheter cools down, it can be taken out and the desired shape can be obtained. This can quickly and conveniently shape the microcatheter, improve shaping efficiency and shaping accuracy.

[0039] Specifically, such as Figure 2 and Figure 3 As shown, it also includes an extension mechanism 30, which includes a rotating disk 31 and a sliding rod 32. The rotating disk 31 is rotatably mounted inside the bracket 10. Multiple circumferential grooves 311 are provided on the rotating disk 31, with the two ends of each groove 311 located at different positions both circumferentially and radially. The sliding rod 32 is arranged radially along the rotating disk 31 and is slidably connected to the grooves 311. A shaping rod 20 is fixedly mounted on the sliding rod 32. Multiple through slots 11 communicating with the interior are provided circumferentially on the outer wall of the bracket 10, allowing the shaping rod 20 to extend from the through slots 11.

[0040] When not in use, the shaping rod 20 is stored inside the support 10 to ensure its cleanliness and hygiene. When needed, by rotating the rotating disk 31, the sliding groove 311 pushes the sliding rod 32 to move radially along the rotating disk 31, thereby moving the shaping rod 20 along with it. This pushes the shaping rod 20 out of the through groove 11 to the outside of the support 10 for shaping the microcatheter.

[0041] Specifically, the inner wall of the bracket 10 is provided with multiple sets of limiting blocks 33 circumferentially. These sets of limiting blocks 33 correspond to the through groove 11, with each set having two limiting blocks 33. The slide rod 32 is slidably inserted between the two limiting blocks 33. The limiting blocks 33 ensure that the slider can only move radially along the rotating disk 31, preventing it from rotating with the slide groove 311 and the rotating disk 31. In this embodiment, as... Figure 2 The shaping rod 20 shown has six rods, and the limiting block 33 has a total of 6 sets.

[0042] Specifically, the end of the slide bar 32 away from the through groove 11 is provided with a conductive plate connected to the electric heating wire, and the limiting block 33 is provided with a conductive plate connected to the power supply. The two conductive plates can contact each other. When the slide bar 32 moves radially on the rotating disk 31, it drives the shaping rod 20 to extend out of the support 10 from the through groove 11 until it extends to a specified length. When the two conductive plates contact each other, the electric heating wire is energized to heat the shaping rod for microcatheter shaping, without the need for the user to turn on the power.

[0043] Specifically, such as Figures 2 to 4 As shown, the inner wall of the bracket 10 is provided with multiple baffles 34 circumferentially. The baffles 34 are vertically movable on the inner wall of the bracket 10 and can block the through groove 11. In this embodiment, the baffles 34 are arc-shaped plates that fit against the inner wall of the bracket 10, and the inner wall of the bracket 10 is provided with a slide rail. The baffles 34 and the slide rail are slidably connected to limit the movement stroke. A limiting groove 341 is formed on the baffles 34 around the circumference of the rotating disk 31, and one end of the limiting groove 341 gradually rises vertically towards the other end, i.e., in a spiral shape. The bracket 10 is also provided with an ultraviolet disinfection lamp. Multiple push rods 35 are provided on the rotating disk 31 circumferentially. One end of the push rod 35 is fixedly mounted on the rotating disk 31, and the other end is slidably mounted in the limiting groove 341.

[0044] When the rotating disk 31 rotates, it drives the push rod 35 to rotate as well. The other end of the push rod 35 is located in the limiting groove 341 of the baffle 34. As the height of the limiting groove 341 gradually changes, the push rod 35 can push the baffle 34 up or down, causing the baffle 34 to open the through groove 11. When the device is not in use, the baffle 34 can block the through groove 11, ensuring that the internal space is isolated from the outside, improving the sealing and hygiene effect, and disinfecting the internal plastic rod 20 with an ultraviolet disinfection lamp.

[0045] Specifically, such as Figure 3 , Figure 5 and Figure 6 As shown, a support column 12 is fixedly installed inside the bracket 10. Multiple rotating disks 31 are arranged along the axial direction of the support column 12 and are rotatably sleeved on it. Multiple shaped rods 20 are arranged on different rotating disks 31, and through slots 11 are correspondingly located at different axial height positions of the bracket 10. Multiple rotating disks are used to install different shaped rods, and the through slots 11 are also correspondingly located at different heights to stagger the shaped rods 20 and avoid interference. This structure sets each shaped rod 20 as an independently moving mechanism, allowing only the required shaped rod to be extended each time it is used, without exposing the remaining shaped rods.

[0046] A sliding lever 13 is provided axially inside the support column 12. The inner wall of the support column 12 has through holes 121 and strip holes 122. Multiple through holes 121 are sequentially arranged axially along the support column 12 and extend in an arc shape around the circumference of the support column 12. The strip holes 122 are arranged axially along the support column 12 and sequentially connect to the multiple through holes 121. The lever 13 has a lever block 131 that is slidably connected to the through holes 121 and the strip holes 122. The rotating disk 31 has a stop block 312, which is concave and inserted into the through hole 121, slidably connecting thereto. The lever block 131 can pass through the stop block 312.

[0047] When selecting the shaping rod 20, slide the lever 13 inside the support column 12, and slide the lever 131 inside the strip hole 122. Then, slide through different through holes 121 in sequence until the desired shaping rod 20 is reached at the rotating disk 31. Insert the lever 131 into the recess of the stop block 312, and then rotate the lever 13 to make the lever 131 drive the stop block 312 and the rotating disk 31 to rotate around the circumference, thereby driving the slide rod 32 to move and extend the shaping rod 20.

[0048] In this embodiment, the surface of the lever 13 is provided with scale markings along the axial direction, which makes it easy for the user to observe the insertion depth of the lever 13 so that it can be inserted into the stop 312 of the corresponding rotating disk 31.

[0049] The working principle of the aforementioned microcatheter shaping device is as follows: During use, a shaping rod with the corresponding curvature is selected according to the desired shape. The lever 13 is inserted to the corresponding depth. Rotating the lever 13 drives the stop block 312 and the rotating disk 31 to rotate via the lever block 131. The push rod 35 pushes the baffle 34 to move through the limiting groove 341, opening the through groove 11. Simultaneously, under the action of the sliding groove 311 and the limiting block 33, the sliding rod 32 moves radially along the rotating disk 31, causing the shaping rod 20 to move outwards and extend from the through groove 11 beyond the support 10. After extension, the two conductive plates contact, energizing the heating wire inside the shaping rod 20, thereby allowing the microcatheter to be fitted onto the shaping rod for softening and shaping.

[0050] Using the aforementioned microcatheter shaping device, multiple pre-prepared shaping rods can be used to quickly and conveniently shape the microcatheter, improving both shaping efficiency and precision. Furthermore, when not in use, the shaping rods can be stored in a support, ensuring their cleanliness and hygiene; only the required shaping rod can be exposed for each use.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A microcatheter shaping device, characterized in that: It includes a support and shaping rods, with multiple shaping rods mounted on the support and each shaping rod having a different curvature. Each shaping rod is equipped with an electric heating wire. It also includes an extension mechanism, which includes a rotating disk and a sliding rod. The rotating disk is rotatably mounted in the bracket. The rotating disk has multiple sliding grooves arranged circumferentially. The two ends of the sliding grooves are located at different positions in the radial direction of the rotating disk. The sliding rod is arranged radially along the rotating disk and is slidably connected to the sliding grooves. The shaping rod is mounted on the slide rod, and the outer wall of the bracket has multiple through slots that connect to the interior in a circumferential direction, through which the shaping rod can extend. The inner wall of the bracket is provided with multiple sets of limiting blocks in the circumferential direction. The multiple sets of limiting blocks are arranged corresponding to the through groove, and each set has two limiting blocks. The slide rod is slidably inserted between the two limiting blocks. The end of the slide bar away from the through groove is provided with a conductive sheet connected to the electric heating wire, and the limiting block is provided with a conductive sheet connected to the power supply. The two conductive sheets can contact each other. The bracket is fixedly provided with a support column, and multiple rotating disks are provided along the axial direction of the support column and are rotatably sleeved on the support column. Multiple plastic rods are provided on different rotating disks, and the through grooves are located at different axial height positions of the bracket. The support column is provided with a sliding plug rod along the axial direction. The inner wall of the support column is provided with through holes and strip holes. Multiple through holes are arranged sequentially along the axial direction of the support column and extend around the circumference of the support column in an arc shape. The strip holes are arranged along the axial direction of the support column and are connected to multiple through holes in sequence. The lever is provided with a lever block that is slidably connected to the through hole and the strip hole. The rotating disk is provided with a stop block. The stop block is concave and slidably connected to the through hole. The lever block can pass through the stop block.

2. The microcatheter shaping device according to claim 1, characterized in that: The inner wall of the bracket is provided with multiple baffles around the circumference. The baffles are vertically movable on the inner wall of the bracket and can block the through slot. The baffles are provided with limit slots around the circumference of the rotating disk, and one end of the limit slots gradually rises vertically towards the other end. The bracket is provided with an ultraviolet disinfection lamp. The rotating disk is provided with a plurality of push rods in a circumferential manner. One end of each push rod is fixedly mounted on the rotating disk, and the other end is slidably mounted in a limiting groove.

3. The microcatheter shaping device according to claim 1, characterized in that: The lever surface has axial markings.

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