A bending and setting device for medical needles

Abstract

The application relates to the technical field of medical devices, in particular to a bending and shaping device for a medical needle, which comprises a main body, a shaping sleeve assembly and a supporting rod, the shaping sleeve assembly is movably installed on the main body, the supporting rod is installed on the main body, the shaping sleeve assembly comprises a shaping claw group for clamping the medical needle, the supporting rod comprises a supporting part for abutting against the medical needle, and the supporting part and the shaping claw group are located on the same side of the main body. The application not only facilitates the bending and shaping of the medical needle, but also saves the physical strength of doctors; the supporting part abuts against the corresponding position of the medical needle according to the position required to be bent, the bent position of the medical needle after being bent is the required position, the precision of the bending of the medical needle is higher, and the use in the surgical process is avoided.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a bending and shaping device for medical needles. Background Technology

[0002] Medical catheters implanted in blood vessels for more than 30 days are considered long-term implantable catheters. Common examples include implantable drug delivery devices and long-term indwelling hemodialysis catheters. Long-term implantable catheters require the creation of a subcutaneous area during placement, with the middle section of the catheter embedded in this area. This process necessitates the use of a subcutaneous tunneling needle for guidance. When using a subcutaneous tunneling needle, it needs to be bent to a specific angle according to the patient's condition. Because tunneling needles are made of metal and typically have a diameter of 2-4 mm, bending them with both hands is strenuous and requires considerable physical strength. Furthermore, it is difficult to ensure that the bent position and degree meet the usage requirements, thus affecting the establishment of the subcutaneous channel. Besides tunneling needles, other needles in the medical field require slight bending during use, such as puncture needles, straightening needles, and steam-shaped needles. Summary of the Invention

[0003] The purpose of this invention is to provide a bending shaping device for medical needles, which aims to solve the technical problem that bending medical needles is difficult and requires considerable effort in the prior art.

[0004] To achieve the above objectives, this invention proposes a bending and shaping device for medical needles, comprising a main body, a shaping sleeve assembly, and a support rod. The shaping sleeve assembly is movably mounted on the main body, and the support rod is mounted on the main body. The shaping sleeve assembly includes a shaping claw assembly for clamping the medical needle, and the support rod includes a support portion for abutting the medical needle. The support portion and the shaping claw assembly are located on the same side of the main body. This device not only facilitates bending and shaping of medical needles but also saves the doctor's physical effort. The support portion abuts the corresponding position of the medical needle to ensure that the bent position is exactly the desired position, resulting in higher bending precision and avoiding interference with use during surgery.

[0005] Preferably, it further includes a movable structure for driving the shaping sleeve assembly to move relative to the main body. The movable structure facilitates user operation.

[0006] Preferably, the movable structure includes a gear rotatably disposed on the main body and teeth disposed on the shaping sleeve assembly, the teeth meshing with the gear. The structure is simple, easy to operate, and the shaping sleeve assembly moves smoothly, making it easier to bend medical needles.

[0007] Preferably, the movable structure further includes a handle, one end of which is provided with a connecting post, and the end of the connecting post away from the handle is connected to the gear. This facilitates user operation, making it convenient not only to rotate the gear but also to control the rotation of the gear to control the degree of bending of the medical needle; after the medical needle is bent, holding the handle firmly can further fix the bent medical needle in its original shape.

[0008] Preferably, the end of the connecting column that connects to the gear has a protrusion, and one end of the gear has a slot, with the protrusion engaging within the slot. The protrusion and slot facilitate the installation of the handle onto the gear and also make it easy to remove the handle.

[0009] Preferably, the movable structure includes two handles, and the connecting posts on the two handles are respectively connected to both ends of the gear. This not only makes it easier for the user to turn the gear and saves effort, but also makes the force on the gear more balanced, and the gear and teeth are less likely to be damaged or fall off.

[0010] Preferably, the main body includes an upper cover and a lower cover. The lower end face of the upper cover has an upper groove, and the upper end face of the lower cover has a lower groove. The upper cover covers the lower cover. The gear is located within the cavity formed by the upper and lower grooves. The shaping sleeve assembly is movably mounted on the upper cover, passing through the upper cover and the upper groove. The support rod is mounted on the lower cover. This main body design not only simplifies the structure but also facilitates the assembly of the bending and shaping device.

[0011] Preferably, the upper cover has a first through hole extending vertically, and the lower cover has a second through hole extending vertically. When the upper cover is placed on the lower cover, the first through hole and the second through hole are interconnected. A positioning pin is inserted into the first through hole and the second through hole to prevent the upper cover and the lower cover from misaligning. This prevents misalignment between the upper cover and the lower cover, ensuring that the gear is rotatably installed in the upper and lower grooves, thereby preventing the bending and shaping device from failing during the bending and shaping of the medical needle.

[0012] Preferably, the shaping sleeve assembly further includes a left shaping arm and a right shaping arm that are parallel to each other, and the shaping claw assembly includes a left shaping claw and a right shaping claw. The left shaping claw is installed at one end of the left shaping arm, and the right shaping claw is installed at one end of the right shaping arm. The support portion is located between the left shaping claw and the right shaping claw. By providing the left and right shaping claws, the clamping position can be adjusted arbitrarily so that the desired bending position is at the support portion, thus making it more convenient to use and better meeting various bending requirements.

[0013] Preferably, the left shaping arm has a first mounting hole at one end near the left shaping claw, the left shaping claw has a mounting groove at one end near the left shaping arm, and the left shaping claw has second mounting holes on the upper and lower sidewalls of the mounting groove. The fixing member passes through the first and second mounting holes to mount the left shaping claw onto the left shaping arm. This facilitates the mounting and dismounting of the left shaping claw. When the left shaping claw is severely deformed, damaged, or needs to be adapted to different medical needles, it needs to be replaced. Therefore, removing the fixing member allows the left shaping claw to be removed.

[0014] Preferably, the left shaping claw has a receiving hole for accommodating a medical needle and an adjustment hole communicating with the receiving hole. An adjustment member passes through the adjustment hole and is inserted into the receiving hole to adjust the clamping force of the medical needle. This facilitates the left shaping claw in clamping the medical needle and allows for easy adjustment of the clamping force. The same left shaping claw can also be used for medical needles of different diameters, making it more practical.

[0015] Preferably, the structure of the right shaping claw is the same as that of the left shaping claw. This unified structure facilitates production, assembly, and ease of use.

[0016] Preferably, the support rod further includes a support column, one end of which is connected to the main body and the other end of which is fitted with the support portion. The end of the support portion away from the support rod has a support groove for accommodating a medical needle. This configuration allows for easy installation on the main body, and the support groove on the support portion facilitates the accommodating of the medical needle, preventing it from detaching from the support portion during bending.

[0017] Preferably, the support column has a locking position at one end near the main body, and the locking position is perpendicular to the support column; the main body has a T-shaped groove, and the locking position and the support column are engaged in the T-shaped groove. The locking position and T-shaped groove allow the support rod to be securely installed on the main body; the T-shaped groove being specifically located on the upper surface of the lower cover also facilitates the installation and removal of the support rod from the main body.

[0018] Preferably, the main body is provided with an angle mark to indicate the bending angle of the medical needle. The angle mark can visually display the bending angle of the medical needle or the angle range it falls within after bending.

[0019] This invention provides a bending and shaping device for medical needles, which has at least the following beneficial effects: the medical needle is clamped by the shaping claw assembly in the shaping sleeve assembly, the support part of the support rod abuts against the position where the medical needle needs to be bent, and then the shaping sleeve assembly is moved to bend the medical needle; after adopting this device, it is not only convenient to bend and shape medical needles, but also saves the doctor's physical strength; the support part abuts against the corresponding position of the medical needle to ensure that the bent position of the medical needle is the required position, so as to improve the bending accuracy of the medical needle and avoid affecting its use during the operation. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the bending and shaping device of the present invention;

[0022] Figure 2 This is an exploded structural diagram of the bending and shaping device of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the top cover of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the lower cover of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the left shaping claw of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the left shaping arm of the present invention;

[0027] Figure 7 This is a schematic diagram of the support rod of the present invention;

[0028] Figure 8 This is a schematic diagram of the gear structure of the present invention;

[0029] Figure 9 This is a schematic diagram of the handle and connecting post of the present invention;

[0030] Figure 10 This is a top view of the main body of the invention.

[0031] In the attached diagram: 1-Main body, 11-Upper cover, 111-Upper groove, 112-First through hole, 113-Angle mark, 12-Lower cover, 121-Lower groove, 122-Second through hole, 123-T-slot, 2-Shaping sleeve assembly, 21-Shaping claw assembly, 211-Left shaping claw, 2111-Mounting groove, 2112-Second mounting hole, 2113-Accommodation hole, 2114-Adjustment hole, 212-Right shaping claw, 22-Left shaping arm, 221-First mounting hole, 23-Right shaping arm, 24-Adjusting component, 3-Support rod, 31-Support part, 311-Support groove, 32-Support column, 33-Card slot, 4-Moving structure, 41-Gear, 411-Card slot, 42-Tooth, 43-Handle, 44-Connecting column, 441-Protrusion.

[0032] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] 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 a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0035] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0036] like Figures 1 to 10As shown, a bending and shaping device for medical needles includes a main body 1, a shaping sleeve assembly 2, and a support rod 3. The shaping sleeve assembly 2 is movably mounted on the main body 1, and the support rod 3 is mounted on the main body 1. The shaping sleeve assembly 2 includes a shaping claw group 21 for clamping the medical needle, and the support rod 3 includes a support portion 31 for abutting the medical needle. The support portion 31 and the shaping claw group 21 are located on the same side of the main body 1.

[0037] Medical needles mainly refer to needles used in the medical field, such as tunneling needles, puncture needles, straightening needles, and steam-shaped needles. The medical needles described below primarily refer to tunneling needles. The main body 1 supports the shaping sleeve assembly 2 and the support rod 3. The shaping sleeve assembly 2 fixes the medical needle and drives its movement. The support rod 3 holds the medical needle in place, allowing it to bend during movement. The shaping sleeve assembly 2 is movable relative to the main body 1. It includes a shaping claw assembly 21 for clamping the medical needle. The support rod 3 includes a support portion 31 for holding the medical needle in place. Specifically, the shaping claw assembly 21 and the support portion 31 are located on the same side of the main body 1. The length direction of the shaping sleeve assembly 2 is the direction of movement of the medical needle, and the length direction of the shaping sleeve assembly 2 is consistent with the length direction of the support rod 3. In its natural state, the shaping sleeve assembly 2 and the support rod 3 are parallel to each other. The bending and shaping process is as follows: the medical needle is fixed on the shaping claw assembly 21, then the shaping sleeve assembly 2 is moved, causing the shaping claw assembly 21 to move closer to the support part 31. The support part 31 then presses against the medical needle. The shaping sleeve assembly 2 continues to move. At this point, the part of the medical needle pressed against by the support part 31 cannot move, while other parts of the medical needle continue to move with the shaping sleeve assembly 2, thus achieving the bending of the medical needle. Since medical needles are generally made of stainless steel, they will maintain their bent state without external force after bending, thus achieving shaping. Currently, doctors usually bend medical needles manually, that is, directly by hand. Because medical needles have a certain rigidity, bending them requires a certain amount of physical strength, and it is difficult to ensure that the bent position meets the usage requirements. This technical solution provides a bending and shaping device for bending and shaping medical needles. Specifically, the shaping claw assembly 21 in the shaping sleeve assembly 2 clamps the medical needle, and the support part 31 of the support rod 3 holds the position where the medical needle needs to be bent. Then, the shaping sleeve assembly 2 is moved to bend the medical needle. With this device, it is not only convenient to bend and shape medical needles, but it also saves the doctor's physical strength. The support part 31 holds the corresponding position of the medical needle to ensure that the bent position of the medical needle is the required position, so as to improve the bending accuracy of the medical needle and avoid affecting its use during the operation.

[0038] Furthermore, it also includes a movable structure 4 for driving the shaping sleeve assembly 2 to move relative to the main body 1. Compared to manually pulling or pushing the shaping sleeve assembly 2, the movable structure 4 makes it more convenient for the user to use.

[0039] Furthermore, the moving structure 4 includes a gear 41 rotatably mounted on the main body 1 and teeth 42 disposed on the shaping sleeve assembly 2, the teeth 42 meshing with the gear 41. The moving structure 4 includes a gear 41 and teeth 42. The gear 41 is rotatably mounted on the main body 1, and the teeth 42 are disposed on the shaping sleeve assembly 2. By rotating the gear 41, the shaping sleeve assembly 2 moves relative to the gear 41, thereby achieving the bending of the medical needle. The gear 41 can be made of polycarbonate. The moving structure 4 adopts a structure where the gear 41 and teeth 42 mesh, which is simple in structure, convenient to operate, and allows the shaping sleeve assembly 2 to move smoothly, making it easier to bend the medical needle. In other embodiments, the moving structure 4 can adopt other methods, such as a structure with relative movement of a slider and a slide rail, i.e., moving the shaping sleeve assembly 2 by moving the slider; or a combination structure of a screw and nut, i.e., moving the shaping sleeve assembly 2 by rotating the screw or nut; the moving structure 4 can also be other feasible structures, which are not listed here.

[0040] The movable structure 4 also includes a handle 43, one end of which is provided with a connecting post 44. The end of the connecting post 44 away from the handle 43 is connected to the gear 41. In this embodiment, the movable structure 4 also includes a handle 43, and the connecting post 44 connects the handle 43 and the gear 41 together. The connecting post 44 is perpendicular to the handle 43, facilitating the turning of the handle 43. The handle 43 and the connecting post 44 are integrally formed and both are made of polycarbonate. In use, turning the handle 43 rotates the gear 41, which in turn moves the shaping sleeve assembly 2. The handle 43 facilitates user operation, not only making it easy to turn the gear 41 but also to control the rotation of the gear 41 to control the degree of bending of the medical needle. After the medical needle bends, holding the handle 43 firmly further helps to shape the bent medical needle.

[0041] Furthermore, the end of the connecting post 44 connected to the gear 41 is provided with a protrusion 441, and the end of the gear 41 is provided with a groove 411, in which the protrusion 441 is engaged. The end face of the end where the connecting post 44 and the gear 41 are connected is provided with an outwardly protruding protrusion 441, which can specifically be a cross-shaped step; the end where the gear 41 is connected to the connecting post 44 is provided with a groove 411, the shape of which matches the shape of the protrusion 441, so the groove 411 can specifically be a cross-shaped recess; the protrusion 441 is engaged in the groove 411 to detachably connect the connecting post 44 and the gear 41. The protrusion 441 and the groove 411 facilitate the installation of the handle 43 on the gear 41 and also facilitate the removal of the handle 43.

[0042] Furthermore, the movable structure 4 includes two handles 43, and the connecting posts 44 on the two handles 43 are respectively connected to both ends of the gear 41. Each handle 43 is provided with a connecting post 44, through which the handle 43 can be mounted on the gear 41; specifically, handles 43 are mounted on both ends of the gear 41. This arrangement makes it convenient for the user to rotate the gear 41, and compared to having a handle 43 on only one end, this structure requires less effort; on the other hand, turning the handles 43 from both sides of the gear 41 at the same time can make the force on the gear 41 more balanced, thereby making the interaction force between the gear 41 and the teeth 42 more balanced, and the gear 41 and the teeth 42 are not easily damaged or dislodged; this not only protects the bending and shaping device, but also ensures the stable movement of the shaping sleeve assembly 2.

[0043] Furthermore, the main body 1 includes an upper cover 11 and a lower cover 12. The lower end face of the upper cover 11 has an upper groove 111, and the upper end face of the lower cover 12 has a lower groove 121. The upper cover 11 covers the lower cover 12. The gear 41 is located in the cavity formed by the upper groove 111 and the lower groove 121. The shaping sleeve assembly 2 is movably mounted on the upper cover 11 through the upper cover 11 and the upper groove 111. The support rod 3 is mounted on the lower cover 12.

[0044] The main body 1 includes an upper cover 11 and a lower cover 12 arranged opposite each other. The overall structure of the upper cover 11 and the lower cover 12 is similar, and both can be supported by polycarbonate. The upper cover 11 is located above the lower cover 12. The lower end face of the upper cover 11 has an upwardly recessed upper groove 111, and the upper end face of the lower cover 12 has a downwardly recessed lower groove 121. The upper groove 111 and the lower groove 121 have the same shape, both being square. When the upper cover 11 is placed on the lower cover 12, the upper groove 111 and the lower groove 121 are interconnected and form a cavity, which is used to accommodate and install the gear 41. The shaping sleeve assembly 2 passes through the upper cover 11 and through the upper groove 111, so that the teeth 42 on the shaping sleeve assembly 2 can mesh with the gear 41 in the cavity. The support rod 3 is mounted on the lower cover 12, so the shaping sleeve assembly 2 is located above the support rod 3. In order for the support part 31 to abut against the medical needle on the shaping claw assembly 21, the support part 31 can be set upward, or the shaping claw assembly 21 can be set downward, or the support rod 3 or the shaping sleeve assembly 2 can be deformed to a certain extent. This arrangement of the main body 1 not only simplifies the structure but also facilitates the assembly of the bending shaping device.

[0045] Furthermore, the upper cover 11 has a first through hole 112 that runs vertically through it, and the lower cover 12 has a second through hole 122 that runs vertically through it. When the upper cover 11 is placed on the lower cover 12, the first through hole 112 and the second through hole 122 are interconnected. A positioning post (not shown in the figure) is inserted into the first through hole 112 and the second through hole 122 to prevent the upper cover 11 and the lower cover 12 from being misaligned. Specifically, both the upper cover 11 and the lower cover 12 are cubic structures with the same dimensions. Each of the four corners of the upper cover 11 has a first through hole 112 penetrating through it, and each of the four corners of the lower cover 12 has a second through hole 122 penetrating through it. The diameters of the first through holes 112 and 122 are the same. After the upper cover 11 is placed on top of the lower cover 12, the first through holes 112 and 122 are interconnected. A positioning pin is inserted into the first through holes 112 and 122 to ensure the upper cover 11 and lower cover 12 are aligned correctly, preventing misalignment. Since the first through holes 112 and 122 are circular, the positioning pin is a cylindrical shape that matches their size. This design prevents misalignment between the upper cover 11 and lower cover 12, ensuring that the gear 41 can be rotatably installed in the upper groove 111 and lower groove 121, thereby preventing the bending and shaping device from malfunctioning during the bending and shaping of the medical needle.

[0046] Furthermore, the shaping sleeve assembly 2 also includes a left shaping arm 22 and a right shaping arm 23 that are parallel to each other, the shaping claw assembly 21 includes a left shaping claw 211 and a right shaping claw 212, the left shaping claw 211 is installed at one end of the left shaping arm 22, the right shaping claw 212 is installed at one end of the right shaping arm 23, and the support portion 31 is located between the left shaping claw 211 and the right shaping claw 212.

[0047] The shaping sleeve assembly 2 also includes a left shaping arm 22 and a right shaping arm 23. A left shaping claw 211 is mounted at one end of the left shaping arm 22, and a right shaping claw 212 is mounted at one end of the right shaping arm 23. The left and right shaping claws 211 and 212 have identical structures and are used together to clamp the medical needle. Specifically, the left and right shaping claws 211 and 212 respectively clamp the two ends of the portion of the medical needle that needs to be bent. The left and right shaping claws 211 and 212 are spaced apart, and the support portion 31 is located between them. Both the left and right shaping claws 211 and 212 are made of polycarbonate. During the bending of the medical needle, the left and right shaping claws 211 and 212 can move synchronously or asynchronously to bend the desired medical needle. The structure of the shaping sleeve assembly 2 is designed so that the support portion 31 between the left shaping arm 22 and the right shaping arm 23 can easily abut against the part of the medical needle that needs to be bent. Since medical needles are generally long, the part that needs to be bent may be close to the end. If bent by hand, it is inconvenient to operate and difficult to bend to the desired shape. However, by setting the left shaping claw 211 and the right shaping claw 212, the clamping position can be adjusted at will, so that the desired bending position is at the support portion 31. Therefore, it is more convenient to use and can better meet various bending needs.

[0048] Specifically, the aforementioned teeth 42 are specifically provided on the left shaping arm 22 and the right shaping arm 23, that is, both the left shaping arm 22 and the right shaping arm 23 are provided with teeth 42, and the teeth 42 on both mesh with the gear 41; rotating the gear 41 can make the left shaping arm 22 and the right shaping arm 23 move synchronously. The left shaping arm 22 and the right shaping arm 23 are both made of soft metals with a certain degree of ductility (such as sodium metal, magnesium, aluminum alloy, gold, nickel titanium alloy, etc.), which not only meets the requirements of setting teeth 42 and cooperating with gear 41, but also meets the requirements of generating a certain deformation during the bending of medical needles.

[0049] Furthermore, the left shaping arm 22 has a first mounting hole 221 at one end near the left shaping claw 211, the left shaping claw 211 has a mounting groove 2111 at one end near the left shaping arm 22, and the left shaping claw 211 has a second mounting hole 2112 on the upper and lower side walls of the mounting groove 2111. The fastener passes through the first mounting hole 221 and the second mounting hole 2112 to mount the left shaping claw 211 onto the left shaping arm 22.

[0050] The left shaping arm 22 has a through-hole 221 at one end near the left shaping claw 211, and a U-shaped groove (i.e., the aforementioned mounting groove 2111) with its opening facing the left shaping arm 22 at the other end of the left shaping claw 211. Second mounting holes 2112 are provided on the upper and lower sidewalls opposite to the U-shaped groove. The left shaping arm 22 extends into the mounting groove 2111, aligning the first mounting hole 221 and the second mounting hole 2112. A fastener (not shown in the figure) is inserted into the first mounting hole 221 and the second mounting hole 2112 to mount the left shaping claw 211 and the right shaping claw 212 onto the left shaping arm 22. This design facilitates the mounting and dismounting of the left shaping claw 211. When the left shaping claw 211 is severely deformed, damaged, or needs to be adapted to different medical needles, it needs to be replaced. Therefore, removing the fastener allows the left shaping claw 211 to be removed. The fastener can be a bolt, which is passed through the left shaping claw 211 and the left shaping arm 22, and then screwed with a nut to connect and fix the left shaping claw 211 and the left shaping arm 22; or threads can be provided on the hole walls of the first mounting hole 221 and the second mounting hole 2112.

[0051] Furthermore, the left shaping claw 211 has a receiving hole 2113 for accommodating a medical needle and an adjustment hole 2114 connected to the receiving hole 2113. The adjustment member 24 passes through the adjustment hole 2114 and is inserted into the receiving hole 2113 to adjust the clamping force of clamping the medical needle.

[0052] The left shaping claw 211 has a through receiving hole 2113, the axis of which is perpendicular to the direction of movement of the left shaping arm 22. At the end of the left shaping claw 211 away from the left shaping arm 22, there is an adjustment hole 2114 communicating with the receiving hole 2113. An adjustment member 24 passes through the adjustment hole 2114 and is inserted into the receiving hole 2113. When a medical needle is inserted into the receiving hole 2113, the end of the adjustment member 24 extending into the receiving hole 2113 abuts against the medical needle. Adjusting the degree to which the adjustment member 24 extends into the receiving hole 2113 adjusts the clamping force of the left shaping claw 211 and the adjustment member 24 on the medical needle. Specifically, an internal thread can be provided on the side wall of the adjustment hole 2114, and a bolt can be used as the adjustment member 24. Tightening the bolt adjusts the clamping force of the medical needle. This design allows the left shaping claw 211 to easily clamp the medical needle and allows for easy adjustment of the clamping force of the left shaping claw 211 on the medical needle; the same left shaping claw 211 can also be used for medical needles of different diameters, making it more practical.

[0053] Furthermore, the structure of the right shaping claw 212 is the same as that of the left shaping claw 211. The structures of the left shaping arm 22 and the right shaping arm 23 are the same, as are the structures of the left shaping claw 211 and the right shaping claw 212. The way in which the right shaping claw 212 is fixed to the right shaping arm 23 is the same as the way in which the left shaping claw 211 is fixed to the left shaping arm 22. The right shaping claw 212 is also provided with an adjusting member 24 for adjusting the clamping force of the medical needle.

[0054] Furthermore, the support rod 3 also includes a support column 32. One end of the support column 32 is connected to the main body 1, and the other end is fitted with the support portion 31. The end of the support portion 31 away from the support rod 3 has a support groove 311 for accommodating a medical needle. One end of the support column 32 is connected to the main body 1, specifically to the lower cover 12 of the main body 1, and the other end of the support column 32 is fitted with the support portion 31. The shaping claw assembly 21 and the support rod 3 are located on the same side of the main body 1. The end of the support portion 31 away from the support rod 3 has a support groove 311, which is a C-shaped groove with its opening facing away from the support column 32. This arrangement of the support rod 3 facilitates its installation on the main body 1, and the support groove 311 on the support portion 31 facilitates the accommodating of the medical needle, preventing the medical needle from falling off the support portion 31 during bending.

[0055] Furthermore, the support column 32 has a locking position 33 at one end near the main body 1, and the locking position 33 is perpendicular to the support column 32. The main body 1 has a T-shaped groove 123, and the locking position 33 and the support column 32 are engaged in the T-shaped groove 123. The locking position 33 and the support column 32 form a T-shaped structure, and a corresponding T-shaped groove 123 is provided on the main body 1. Specifically, the upper end face of the lower cover 12 is provided in the T-shaped groove 123. The ends of the locking position 33 and the support column 32 near the locking position 33 are engaged in the T-shaped groove 123. The support column 32, the support part 31, and the locking position 33 are all made of stainless steel to ensure rigidity and strength, and to avoid insufficient strength to withstand bending and deformation when resisting a bending medical needle. The setting of the locking position 33 and the T-slot 123 allows the support rod 3 to be securely installed on the main body 1; combined with the fact that the T-slot 123 is specifically opened on the upper end face of the lower cover 12, it also facilitates the installation and removal of the support rod 3 from the main body 1.

[0056] Furthermore, the main body 1 is provided with an angle mark 113 for indicating the bending angle of the medical needle. The angle mark 113 is specifically located on the upper surface of the cover 11, allowing the user to compare the medical needle with the cover during bending to confirm or roughly estimate the bending angle. The opening of the angle mark 113 corresponds to the bending direction of the medical needle. The angle mark 113 can be in the form of a sticker, directly affixed to the upper surface of the main body 1; or directly printed on the upper surface of the main body 1; or engraved on the upper surface of the main body 1; or directly drawn on the upper surface of the main body 1. Since the medical needle does not need to be bent to a specific angle during use, but only to a certain extent, the angle mark 113 indicates several angles (e.g., ...). Figure 10 The angles (45°, 90°, 135°) are used to roughly determine the bending angle when bending the medical needle, based on the coverage area of ​​both ends of the needle and angle mark 113. If a more precise bending angle is required, the angle value of angle mark 113 can be set to a higher value and a wider angle range. The setting of angle mark 113 allows users to intuitively understand the bending angle when bending the medical needle, making the bent medical needle more suitable for actual use.

[0057] The process of bending the medical needle in this embodiment is as follows: First, insert the straight medical needle into the receiving hole 2113 of the left shaping claw 211 and the right shaping claw 212. Then, adjust the adjusting member 24 to clamp the medical needle on the left shaping claw 211 and the right shaping claw 212. Bend the left shaping arm 22 and the right shaping arm 23 downwards a certain distance so that the medical needle rests against the support groove 311 of the support part 31. Then, turn the handle 43 to move the left shaping arm 22 and the right shaping arm 23 towards the side where the main body 1 is located. Since the support part 31 supports the medical needle, the part of the medical needle clamped by the left shaping claw 211 and the right shaping claw 212 will move towards the side where the main body 1 is located along with the left shaping arm 22 and the right shaping arm 23. This causes the two ends of the part of the medical needle that is held against by the support part 31 to bend towards the side where the main body 1 is located, thus achieving the bending of the medical needle. After bending, the medical needle is shaped into the bent shape. The degree of bending of a medical needle can be controlled by the doctor based on clinical experience and the actual situation.

[0058] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A bending and shaping device for medical needles, characterized in that, The device includes a main body (1), a shaping sleeve assembly (2), and a support rod (3). The shaping sleeve assembly (2) is movably mounted on the main body (1), and the support rod (3) is mounted on the main body (1). The shaping sleeve assembly (2) includes a shaping claw assembly (21) for clamping a medical needle, and the support rod (3) includes a support portion (31) for abutting the medical needle. The support portion (31) and the shaping claw assembly (21) are located on the same side of the main body (1). It also includes a moving structure (4) for driving the shaping sleeve assembly (2) to move relative to the body (1); The movable structure (4) includes a gear (41) rotatably disposed on the main body (1) and teeth (42) disposed on the shaping sleeve assembly (2), the teeth (42) meshing with the gear (41); The movable structure (4) also includes a handle (43), one end of which is provided with a connecting post (44), and the end of the connecting post (44) away from the handle (43) is connected to the gear (41); The main body (1) includes an upper cover (11) and a lower cover (12). The lower end face of the upper cover (11) is provided with an upper groove (111), and the upper end face of the lower cover (12) is provided with a lower groove (121). The upper cover (11) covers the lower cover (12). The gear (41) is located in the cavity formed by the upper groove (111) and the lower groove (121). The shaping sleeve assembly (2) is movably installed on the upper cover (11) through the upper cover (11) and the upper groove (111). The support rod (3) is installed on the lower cover (12). The shaping sleeve assembly (2) further includes a left shaping arm (22) and a right shaping arm (23) that are parallel to each other. The shaping claw assembly (21) includes a left shaping claw (211) and a right shaping claw (212). The left shaping claw (211) is installed at one end of the left shaping arm (22), and the right shaping claw (212) is installed at one end of the right shaping arm (23). The support part (31) is located between the left shaping claw (211) and the right shaping claw (212). The support rod (3) also includes a support column (32), one end of which is connected to the main body (1) and the other end is equipped with the support part (31). The support part (31) has a support groove (311) for accommodating a medical needle at one end away from the support rod (3). The left shaping arm (22) and the right shaping arm (23) can be bent downwards a certain distance so that the medical needle is placed in the support groove (311) of the support part (31); The left shaping claw (211) has a receiving hole (2113) for accommodating a medical needle and an adjustment hole (2114) connected to the receiving hole (2113). The adjustment member (24) passes through the adjustment hole (2114) and is inserted into the receiving hole (2113) to adjust the clamping force of clamping the medical needle. The left shaping arm (22) has a first mounting hole (221) at one end near the left shaping claw (211), and the left shaping claw (211) has a mounting groove (2111) at one end near the left shaping arm (22). The left shaping claw (211) has a second mounting hole (2112) on the upper and lower side walls of the mounting groove (2111). The fastener passes through the first mounting hole (221) and the second mounting hole (2112) to mount the left shaping claw (211) on the left shaping arm (22).

2. The bending and shaping device for medical needles according to claim 1, characterized in that, The connecting column (44) is connected to the gear (41) at one end with a protrusion (441), and the gear (41) is provided with a slot (411) at one end, and the protrusion (441) is engaged in the slot (411). The movable structure (4) includes two handles (43), and the connecting posts (44) on the two handles (43) are respectively connected to the two ends of the gear (41).

3. The bending and shaping device for medical needles according to claim 1, characterized in that, The upper cover (11) has a first through hole (112) that runs vertically through the top and bottom, and the lower cover (12) has a second through hole (122) that runs vertically through the bottom and bottom. When the upper cover (11) is placed on the lower cover (12), the first through hole (112) and the second through hole (122) are connected to each other. The positioning pin is inserted into the first through hole (112) and the second through hole (122) to prevent the upper cover (11) and the lower cover (12) from being misaligned.

4. The bending and shaping device for medical needles according to claim 1, characterized in that, The support column (32) has a locking position (33) at one end near the main body (1), and the locking position (33) is perpendicular to the support column (32); the main body (1) has a T-shaped groove (123), and the locking position (33) and the support column (32) are locked in the T-shaped groove (123).

5. A bending and shaping device for medical needles according to claim 1, characterized in that, The main body (1) is provided with an angle mark (113) for indicating the bending angle of the medical needle.

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