Interventional micro guide wire storage device

Abstract

This application discloses an interventional microwire storage device, comprising: a housing having a receiving cavity and a pivotally connected rotating shaft capable of rotating relative to the housing; the housing also having a guide wire hole communicating with the receiving cavity and the outside; a winding drum disposed within the receiving cavity, the winding drum being coaxially arranged and connected to the rotating shaft, the winding drum having a groove for winding the microwire, one end of the microwire being fixed to the winding drum; a guide member movably disposed within the housing, the guide member having a guide hole located between the guide wire hole and the winding drum, the microwire being able to pass through the guide wire hole, the guide hole and connect to the guide wire fixing structure of the winding drum in sequence; the rotating shaft being connected to the guide member through a transmission mechanism, the rotating shaft being able to drive the winding drum to rotate relative to the housing within the receiving cavity, and driving the guide member to reciprocate axially on the rotating shaft, changing the position of the microwire passing through the guide hole relative to the groove. This application can achieve orderly winding and release of the microwire.

Description

Technical Field

[0001] This application relates to the field of medical device technology, specifically to an interventional microguidewire storage device. Background Technology

[0002] Neurointerventional surgery primarily involves minimally invasive interventional treatment of cerebrovascular diseases, including intracranial aneurysms, arteriovenous malformations, and dural arteriovenous fistulas. During neurointerventional surgery, surgeons often use guidewires to guide catheters to the lesion site. Guidewires are also used in other interventional procedures to guide the placement of stents and balloons within the body's natural cavities. The main function of the guidewire is to establish a reusable, controllable, and safe navigation route within the body's natural cavities or pathological lumen, allowing instruments such as stents, balloons, and guiding catheters to reach their target locations along the guidewire laid within the body's natural cavities.

[0003] Guidewires have a certain length; for example, the microguidewires used in neurointerventional surgery are approximately 2.0-3.0 meters long. Currently, surgeons rely entirely on manual operation when using or retrieving microguidewires during surgery. Because the microguidewire, except for its tip, has a certain degree of rigidity, if the surgeon performs these operations alone, the microguidewire is prone to bouncing, or the excessively long tail end may obstruct the surgeon's work. If an assistant is required, the probability of these accidents can only be reduced after the assistant has reached a certain level of proficiency, but this still increases the procedural steps, prolongs the operation time, and consequently increases the surgical risk. When retrieving the microguidewire, manually winding it can easily lead to knots and damage to the coating, affecting the lubrication and passage of the microguidewire when reused. If the unpacked microguidewire is placed on the instrument table without specific instruments for safekeeping, it may fall to the ground and become contaminated. Summary of the Invention

[0004] In order to better store microwires during surgery, facilitate the delivery of microwires into or out of patients by medical staff, and reduce the possibility of microwire contamination, this application provides an interventional microwire storage device.

[0005] An interventional microwire storage device includes: a housing having a receiving cavity, and the housing also having a microwire hole communicating with the receiving cavity and the outside.

[0006] The rotating shaft, pivotally connected, is capable of rotating relative to the housing about its own axis.

[0007] A winding spool is disposed within the receiving cavity. The winding spool is coaxially arranged and connected to the rotating shaft. The winding spool has a groove along its circumference for winding the microguide wire. One end of the microguide wire is fixed to the winding spool.

[0008] A guide member is axially movable in the housing along the rotation axis. The guide member is provided with a guide hole for guiding the microguide wire to adhere to the wire groove during rotation. The microguide wire can pass through the microguide wire hole and the guide hole in sequence and then be fixed on the winding drum to ensure that the microguide wire is wound into the wire groove of the winding drum during rotation.

[0009] The transmission mechanism connects the rotating shaft and the guide component, and transmits the rotational motion of the rotating shaft to the guide component through the transmission mechanism.

[0010] The rotation of the rotating shaft around its own axis in a first direction causes the winding drum to rotate relative to the housing within the receiving cavity, thereby winding the microguide wire into the wire groove. Simultaneously, the rotation of the rotating shaft, through the transmission mechanism, causes the guide member to move axially on the rotating shaft, thereby changing the position of the microguide wire relative to the wire groove as the winding drum rotates, ensuring that the microguide wire does not overlap within the wire groove. The rotation in the second direction is opposite to the rotation in the first direction. When the rotating shaft rotates in the second direction, the microguide wire separates from the wire groove.

[0011] In one embodiment of this application, the transmission mechanism includes a swing arm and an eccentric wheel; the middle portion of the swing arm is pivotally connected to the housing and is capable of rotating around the swing arm's rotation axis, which is perpendicular to the axial direction of the rotating shaft; a first groove is provided at the first end of the swing arm along its length; a second groove is provided at the second end of the swing arm along its length; the eccentric wheel is pivotally connected to the housing, and its rotation axis is parallel to the swing arm's rotation axis; the eccentric wheel has a first connecting portion extending along the straight line of the swing arm's rotation axis, which is not coaxial with the eccentric wheel's rotation axis; the first connecting portion is inserted into the first groove and can move within the first groove along its extension direction; the guide member has a second connecting portion extending along the straight line of the eccentric wheel's rotation axis, which is inserted into the second groove and can move within the second groove along its extension direction; when the rotating shaft drives the eccentric wheel to rotate around its rotation axis, the eccentric wheel drives the guide member to reciprocate linearly along the axial direction of the rotating shaft via the swing arm.

[0012] In one embodiment of this application, the transmission mechanism further includes a first bevel gear and a second bevel gear. The first bevel gear is coaxially arranged with the rotating shaft and fixedly connected. The second bevel gear is coaxially arranged with the rotation axis of the eccentric wheel and fixedly connected to the eccentric wheel. The first and second bevel gears mesh, and when the rotating shaft rotates, the first and second bevel gears drive the eccentric wheel to rotate around the rotation axis of the eccentric wheel. The 360-degree rotation of the first bevel gear drives the second bevel gear to rotate, which in turn drives the eccentric wheel to rotate. The rotation of the eccentric wheel causes the guide to change by a diameter greater than or equal to that of a micro-guide wire on the longitudinal axis, thereby ensuring that a change of a diameter greater than or equal to that of a micro-guide wire occurs every time the winding is completed, ensuring that the micro-guide wires do not overlap during winding.

[0013] In one embodiment of this application, the axis of the second bevel gear is perpendicular to and intersects the axis of the rotating shaft.

[0014] In one embodiment of this application, the housing includes an upper housing and a lower housing; a rotating shaft is vertically arranged, and the rotating shaft and a guide are connected to the upper housing; the lower housing is provided with a receiving cavity and a micro guide wire hole; the upper housing and the lower housing are detachably connected to open or close the receiving cavity; the lower housing is provided with a sliding groove extending axially along the rotating shaft, the sliding groove extending to the upper end face of the lower housing, and the guide can be inserted into the sliding groove and slidably connected with the sliding groove.

[0015] In one embodiment of this application, the winding drum is detachably connected to the upper shell and the lower shell; the two end faces of the winding drum are respectively connected to the rotating shaft and the lower shell through a plug-in structure. When the upper shell, the lower shell, and the winding drum are connected, the two plug-in structures are coaxially arranged with the rotating shaft.

[0016] In one embodiment of this application, the lower end face of the upper housing is provided with at least one positioning part one, and the upper end face of the lower housing is provided with at least one positioning part two. The number of positioning parts one and positioning parts two are equal, and positioning parts one and positioning parts two are inserted into each other.

[0017] In one embodiment of this application, the upper housing and the lower housing are connected by a snap-fit ​​structure.

[0018] In one embodiment of this application, the microguidewire orifice is provided with an elastic valve, which normally closes the microguidewire orifice.

[0019] The beneficial effects of this application are at least as follows: This application utilizes an externally driven rotating shaft to rotate, allowing the microguidewire to wind onto the groove of the winding drum. Simultaneously, the rotation of the shaft in the first direction drives a guide component to move along the longitudinal axis of the groove via a transmission mechanism, enabling the microguidewire to be arranged orderly along the width of the groove. Microguidewires within the same layer are wound spirally within the groove at a constant pitch, ensuring that the outer diameter of the microguidewire matches the pitch. This achieves a tight and orderly arrangement of a single layer of microguidewires within the groove, preventing the microguidewires from loosely winding around the winding drum and interfering with their deployment and retraction. Furthermore, the microguidewires can be wound layer by layer within the groove. The orderly storage and release of the microguidewires prevents them from tangling with each other, thus avoiding any impact on the operator's feel. This application achieves orderly storage of the microguidewires, reducing the possibility of contamination. Attached Figure Description

[0020] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic structural diagram of one embodiment of the present application; Figure 2 This is a schematic diagram of one embodiment of the microguide wire hole and guide hole in this application. Figure 3 This is a schematic structural diagram of one embodiment in which the guide hole in this application is located on the upper side of the wire groove; Figure 4 This is a schematic structural diagram of an embodiment in which the first connecting part is located at a certain position and the guide hole is located in the middle of the groove; Figure 5 This is a schematic structural diagram of one embodiment in which the guide hole in this application is located on the lower side of the wire groove; Figure 6 This is a schematic structural diagram of an embodiment in which the first connecting part is located in another position and the guide hole is located in the middle of the groove; Figure 7 This is a schematic diagram of a possible embodiment of the microguidewire in this application being wound in an orderly manner under the guidance of the guide hole; Figure 8 This is a schematic structural diagram of one embodiment of the meshing of bevel gear one and bevel gear two in this application; Figure 9 This is a schematic structural diagram of one embodiment of the eccentric wheel and swing arm in this application; Figure 10This is a schematic diagram of a structural embodiment in which an elastic valve is provided at the guide hole in this application; Figure 11 This is a schematic diagram of one embodiment of the drive device and the interventional microwire storage device in this application.

[0021] Label Explanation: 101. Housing; 102. Receiving cavity; 103. Microguidewire hole; 104. Upper housing; 105. Lower housing; 106. Slide groove; 107. Positioning part one; 108. Positioning part two; 109. Claw; 110. Claw groove; 111. Elastic valve; 201. Thread spool; 202. Thread trough; 301. Guide component; 302. Guide hole; 303. Second connecting part; 401. Bevel gear one; 402. Bevel gear two; 403. Eccentric wheel; 404. First connecting part; 405. Swing arm; 406. First slide groove; 407. Second slide groove; 408. Rotating shaft; 501. Microguidewire; 601. Handwheel; 602. Placement platform; 603. Vertical guide rail; 604. Slider; 605. Locking bolt. Detailed Implementation

[0022] To provide a clearer understanding of the technical features, objectives, and effects of this application, specific embodiments of this application are now described with reference to the accompanying drawings. In the drawings, the same reference numerals indicate components with the same or similar structures but the same function.

[0023] In this document, “illustrative” means “serving as an example, illustration or description”, and any illustration or implementation described herein as “illustrative” should not be construed as a more preferred or advantageous technical solution.

[0024] To keep the drawings concise, only the parts relevant to this application are shown schematically in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components with the same structure or function is shown schematically, or only one of them is labeled.

[0025] The "fixed connection" between the two components in this application is achieved through methods such as integral manufacturing, threaded connection, snap welding, and bonding, so that the relative position between the two components does not change or rotate relative to each other during use.

[0026] In this application, "pivotal connection" refers to a component that can rotate relative to another component about a pivot axis. One of the two components has a pivot hole, and the other has a pivot shaft that can be inserted into the pivot hole and is coaxial with the pivot hole. The two components are pivotally connected through the pivot hole and pivot shaft structure, where the axis of the pivot hole is the pivot axis. Alternatively, both components have pivot holes, and the two components are pivotally connected by other pivot members with pivot shafts. Or, both components have pivot shafts, and the two components are pivotally connected by other pivot members with pivot holes.

[0027] The movement of one component relative to another in this application can be configured such that the two components slide relative to each other along a preset path, or that one component moves relative to the other component by means of the rolling of a rolling element. One component has a guiding structure in the form of a guide groove, guide rail, guide hole, etc., and the other component has a mating structure coupled to the guiding structure, such as a slider, guide bar, etc. The guiding structure and the mating mechanism can be slidably connected or rolledly connected by means of a rolling element.

[0028] Please see Figures 1 to 11 Learn more about this application.

[0029] See Figure 1 The interventional microwire storage device includes a housing 101 and a winding spool 201. (See also...) Figure 1 The housing 101 has a receiving cavity 102 and a microguide wire hole 103 connecting the receiving cavity 102 to the outside. A winding drum 201 is located inside the receiving cavity 102, and a wire groove 202 is provided around its axis. The tail end of the microguide wire 501 can be fixedly connected to the winding drum 201 through the microguide wire hole 103 in the housing 101. When the winding drum 201 rotates in the winding direction, the microguide wire 501 can be wound around the wire groove 202 of the winding drum 201. When it is necessary to release the microguide wire 501 wound on the winding drum 201 to the outside, medical personnel pull the microguide wire 501 outwards, the winding drum 201 rotates in the opposite direction, and the microguide wire 501 can enter the outside.

[0030] Those skilled in the art will understand that the microwire fixing structure in this application can be made of thermoplastic elastomer to form an elastic arm. Normally, the elastic arm rests against the winding drum 201. When it is necessary to fix the microwire 501, the elastic arm is lifted, allowing the tail end of the microwire 501 to pass through the gap between the elastic arm and the winding drum 201. Subsequently, the elastic arm is released, and under its own elasticity, it rests against the winding drum 201, thereby clamping the tail end of the microwire 501 between the elastic arm and the winding drum 201, achieving a fixed connection between the tail end of the microwire 501 and the winding drum 201. The specific position of the elastic arm can be set according to the type of guidewire, as long as it does not affect the rotation of the winding drum 201, or the release and winding of the microwire 501.

[0031] See Figures 1 to 7 The interventional microwire storage device also includes a guide member 301 movably disposed within the housing 101, the guide member 301 having a guide hole 302 penetrating through it. The guide member 301 is capable of moving along the axial direction of the winding spool 201 (the width direction of the groove 202), see [reference]. Figures 3 to 6 As shown in the figure, the guide 301 can move up and down relative to the groove 202, thereby moving in the width direction of the groove 202.

[0032] See Figure 1 , Figure 2 The tail end of the microguide wire 501 located on the outside can pass through the microguide wire hole 103 provided on the housing 101 and the guide hole 302 provided on the guide member 301 in sequence, and be fixedly connected to the winding spool 201 in the receiving cavity 102. See Figure 7Subsequently, the winding drum 201 rotates around its own axis in the winding direction, allowing the microguide wire to be wound circumferentially around the winding drum 201 within the wire groove 202. Simultaneously, the guide member 301 moves at a uniform linear speed along the axial direction of the winding drum 201 (the width direction of the wire groove 202). The guide hole 302 drives the microguide wire 501 passing through the guide hole 302 to move axially along the winding drum 201. Under the winding action of the winding drum 201 and the guiding action of the guide hole 302, the microguide wire 501 spirally winds around the axis of the winding drum 201 within the wire groove 202. Preferably, when the winding drum 201 rotates one revolution, the guide member 301 moves at a uniform linear speed along the width direction of the wire groove 202. The displacement in the axial direction of the guide wire 501 is equal to the diameter of the guide wire 501. That is, when the winding drum 201 rotates once, the pitch of the spiral path formed by the guide wire 501 is equal to the diameter of the guide wire 501. This avoids the second turn of the guide wire 501 from squeezing the first turn of the guide wire 501 in the axial direction of the winding drum, and avoids large friction between adjacent guide wire 501 segments, which would affect the coating on the surface of the guide wire 501. It also ensures that the guide wires 501 are tightly arranged in the groove 202. Alternatively, when the winding drum 201 rotates once, the displacement of the guide member 301 in the width direction of the groove can be slightly greater than the diameter of the guide wire 501, further reducing the degree of friction between adjacent guide wire 501 segments wound in the groove 202.

[0033] Furthermore, the guide member 301 reciprocates at a constant speed in a linear motion along the axial direction of the winding drum 201 (the width direction of the groove 202), see [reference]. Figures 3 to 6 The directions are shown in the diagram. When the winding drum 201 rotates in the winding direction, see [the diagram]. Figure 7The guide hole 302 of the guide member 301 moves gradually from above the wire groove 202 to below the wire groove 202. The micro guide wire 501 spirally winds around the wire groove 202 continuously and without jumps. Each turn of the micro guide wire 501 is tightly attached to the previous turn of the micro guide wire 501 in the axial direction of the winding drum 201. The micro guide wires 501 are arranged sequentially in the wire groove 202 until the winding drum 201 rotates multiple times. Then, the guide hole 302 of the guide member 301 moves to below the wire groove 202, and the micro guide wire 501 winds around the wire groove 202 multiple times. The first layer of micro guide wires 501 gradually fills the wire groove 202 in the width direction. Subsequently, the winding drum 201 continues to rotate in the winding direction. The microguide wire 501 continues to wind around the winding drum 201, forming a second layer of microguide wires within the winding groove 202. The second layer of microguide wires gradually covers the first layer. During this process, the guide hole 302 moves from below the winding groove 202 to above it along the axial direction of the winding drum 201 at a constant speed. Under the guidance of the guide hole 302, the microguide wire 501 gradually winds up to the top of the winding groove 202. This process is repeated according to the length of the microguide wire 501, so that the microguide wire 501 is stacked in an orderly manner within the winding groove 202, and the guide member 301 reciprocates in a straight line along the axial direction of the winding drum 201, thereby achieving the orderly winding of the microguide wire 501. When medical staff pull the microguidewire 501 to the outside, the rotating shaft 408 drives the winding drum 201 to rotate in the opposite direction of winding to unwinding, thereby releasing the microguidewire 501. At the same time, the guide member 301 moves in the opposite direction. For example, when winding the microguidewire 501, the guide member 301 moves downward from above the groove 202 and then upward, returning to the top of the groove 202, thus completing the storage of the microguidewire 501. When releasing the microguidewire 501, the winding drum 201 rotates in the unwinding direction, and the guide member 301 moves downward from above the groove 202 and then upward, returning to the top of the groove 202. The guide member 301 moves in the opposite direction of the original movement path when storing the microguidewire 501. During this process, it guides the release of the microguidewire 501, allowing the microguidewire 501 to be released one turn at a time along the arrangement sequence in the groove.

[0034] By housing the microguidewire 501 within the receiving cavity 102, the possibility of contamination when the microguidewire 501 is placed on the instrument stage can be reduced. During the winding of the microguidewire 501 onto the winding drum 201, or during the release of the microguidewire 501 from the winding drum 201, the guide member 301 guides the microguidewire 501, ensuring its sequential arrangement within the wire groove 202 or its sequential release. This protects the coating of the microguidewire 501 and reduces the possibility of the microguidewire 501 becoming entangled or knotted within the wire groove 202 during winding or unwinding.

[0035] Furthermore, the interventional microwire storage device also includes a rotating shaft 408, which is coaxially arranged and fixedly connected to the winding drum 201. This fixed connection can be achieved through integrated manufacturing of the rotating shaft 408 and the winding drum 201, or through separate manufacturing initially, followed by fixing via welding, bonding, bolting, or insertion. Further details will not be elaborated here. The rotating shaft 408 passes through the housing 101 and enters the outside environment. Medical personnel can apply an external force to the rotating shaft 408 to make it rotate, allowing it to rotate relative to the housing 101 around its own axis. Simultaneously, the rotating shaft 408 drives the winding drum 201 to rotate.

[0036] Furthermore, the rotating shaft 408 is connected to the guide member 301 through a transmission mechanism. When the rotating shaft 408 rotates around its own axis, it can drive the winding drum 201 to rotate relative to the housing 101 in the receiving cavity 102. It can also drive the guide member 301 to reciprocate relative to the housing 101 in the axial direction of the rotating shaft, so as to change the position of the micro guide wire 501 relative to the wire groove 202 when the winding drum 201 rotates. The rotating shaft 408 is coaxially set and fixedly connected to the winding drum 201. The rotating shaft 408 is connected to the guide member 301 through a transmission mechanism. By driving the rotating shaft 408 to rotate, the winding drum 201 can be driven to rotate around the axis of the rotating shaft 408 to wind or release the micro guide wire 501. At the same time, the guide member 301 can be driven to move along the axial direction of the rotating shaft 408 and the winding drum 201 and move in the width direction of the groove 202. The sequential winding or sequential release of the micro guide wire 501 can be achieved without the need for a complex control mechanism, which reduces production costs.

[0037] In one embodiment of this application, see Figure 1 , Figure 2 , Figure 8 , Figure 9 The transmission mechanism includes a swing arm 405, an eccentric wheel 403, a bevel gear 401, and a bevel gear 402.

[0038] The guide member 301 slides with the housing 101 or is connected to the housing 101 by means of a rolling element, so that the guide member 301 can move relative to the housing 101 in the width direction of the groove along a preset path.

[0039] Bevel gear 401 is coaxially mounted and fixedly connected to the rotating shaft 408; bevel gear 402 is coaxially mounted with the rotation axis of the eccentric wheel and fixedly connected to the eccentric wheel 403. The axis of the rotating shaft 408 is perpendicular to the rotation axis of the eccentric wheel, and the axis of bevel gear 402 is perpendicular to and intersects the axis of the rotating shaft 408. Bevel gears 401 and 402 mesh, and when the rotating shaft 408 rotates, the eccentric wheel 403 is driven to rotate around the rotation axis of the eccentric wheel through bevel gears 401 and 402. The middle portion of the swing arm 405 is pivotally connected to the housing 101 and can rotate around the swing arm rotation axis, which is perpendicular to the axial direction of the rotation shaft 408. A first groove 406 is provided at the first end of the swing arm 405 along its length; a second groove 407 is provided at the second end of the swing arm 405 along its length. An eccentric wheel 403 is pivotally connected to the housing 101, and its rotation axis is parallel to the swing arm rotation axis. The eccentric wheel 403 is provided with a rotation axis that rotates along the swing arm. A first connecting portion 404 extends along the straight direction of the axis of rotation. The first connecting portion 404 is not coaxial with the axis of rotation of the eccentric wheel. The first connecting portion 404 is inserted into a first sliding groove 406 and can move within the first sliding groove 406 along its extending direction. The guide member 301 has a second connecting portion 303 extending along the straight direction of the axis of rotation of the eccentric wheel. The second connecting portion 303 is inserted into a second sliding groove 407 and can move within the second sliding groove 407 along its extending direction. (See also...) Figure 9 Both the first connecting part 404 and the second connecting part 303 are rod-shaped components. The first connecting part 404 is inserted into the first sliding groove 406, and the second connecting part 303 is inserted into the second sliding groove 407. The first connecting part 404 can slide relative to the first sliding groove 406, and the second connecting part 303 can slide relative to the second sliding groove 407. Of course, the first connecting part 404 and the second connecting part 303 can also be other types of components. For example, the first connecting part 404 can roll relative to the first sliding groove 406 with the help of a rolling element, and the second connecting part 303 can roll relative to the second sliding groove 407 with the help of a rolling element. This will not be elaborated further here.

[0040] See Figures 3 to 6 While the rotating shaft 408 drives the winding drum 201 to rotate, it drives the eccentric wheel 403 to rotate around the eccentric wheel rotation axis through bevel gear 1 401 and bevel gear 2 402. This causes the first connecting part 404 to rotate around the eccentric wheel rotation axis. The first connecting part 404 has displacement in the axial direction of the rotating shaft (the width direction of the groove), thereby driving the swing arm 405 connected to it to swing. The end of the swing arm 405 with the second sliding groove 407 has displacement in the width direction of the groove. The swing arm 405 drives the guide member 301 to reciprocate in the width direction of the groove (the axial direction of the rotating shaft) through the second connecting part 303.

[0041] See Figures 3 to 7 As described in the diagram, when the microguidewire 501 is being stored, the winding drum 201 rotates in the winding direction. (See diagram). Figure 3 When the first connecting part 404 is at the lowest point of its rotation path, the guide hole 302 is located on the upper side of the wire groove 202. As the eccentric wheel 403 rotates clockwise, the first connecting part 404 gradually approaches the highest point of its rotation path, and the guide hole 302 gradually moves from the upper side to the lower side of the wire groove 202 until the first connecting part 404 is at the highest point of its rotation path and the guide hole 302 reaches the lower side of the wire groove 202. Due to the rotation of the winding drum 201, the multi-turn micro-guide wire 501 is wound inside the wire groove 202, and under the guidance of the guide hole 302, the multi-turn micro-guide wire 501 gradually fills the wire groove 202, forming the first layer of micro-guide wire. See [link to documentation]. Figures 3 to 5 Then, see Figure 5 , Figure 6 , Figure 3 The rotating shaft 408 continues to rotate, and the micro-guide wire 501 continues to wind on the winding drum 201. The eccentric wheel 403 continues to rotate, and the first connecting part 404, located at the highest point of the rotation path, gradually moves to the lowest point. The guide hole 302, located on the lower side of the wire groove 202, moves to the upper side of the wire groove 202 until the first connecting part 404 reaches the lowest point of its movement path and the guide hole 302 reaches the upper side of the wire groove 202. Multiple turns of micro-guide wire 501 are wound inside the wire groove 202, and under the guidance of the guide hole 302, the multiple turns of micro-guide wire 501 gradually fill the wire groove 202, forming a second layer of micro-guide wire covering the first layer of micro-guide wire. If there is still remaining length of micro-guide wire 501, the above process is repeated to achieve orderly stacking and winding of micro-guide wire 501 on the winding drum 201. When the microguidewire 501 is released, it is described as having two layers of microguidewire wound around it. Conversely, the winding drum 201 rotates in the opposite direction, towards the unwinding direction, and the eccentric wheel 403 rotates in the opposite direction, counterclockwise. See [link to relevant documentation]. Figure 3 , Figure 6 , Figure 5 The guide hole 302, located on the upper side of the wire groove 202, gradually reaches the lower side of the wire groove 202, releasing the second layer of micro-guide wire in conjunction with the winding drum 201. Subsequently, the winding drum 201 continues to rotate, releasing the micro-guide wire 501, and the eccentric wheel 403 continues to rotate counterclockwise. See below. Figure 5 , Figure 4 , Figure 3 The guide hole 302 located on the lower side of the wire groove 202 gradually reaches the upper side of the wire groove 202, and releases the micro guide wire 501 of the first micro guide wire layer in conjunction with the winding spool 201. Thus, through the above structure, this application can realize the sequential storage and release of the micro guide wire 501.

[0042] The presence of the first slide groove 406 can compensate for the change in distance of the first connecting part 404 relative to the swing arm 405 in the direction of the line connecting the eccentric wheel rotation axis and the swing arm rotation axis when the first connecting part 404 rotates around the eccentric wheel rotation axis. The presence of the second slide groove 407 can compensate for the change in distance of the second slide groove 407 relative to the guide member 301 in the direction of the line connecting the eccentric wheel rotation axis and the swing arm rotation axis when the swing arm 405 rotates around the swing arm rotation axis, thus avoiding motion interference and hindering the normal operation of the transmission mechanism.

[0043] Furthermore, this application can adjust the rotational frequency relationship between the rotating shaft 408 and the eccentric wheel 403 by adjusting the tooth number relationship between bevel gear 1 401 and bevel gear 2 402, so that when the microguide wire 501 is wound on the winding spool 201, the pitch of the helical winding of the microguide wire 501 is not less than the diameter of the microguide wire 501. For example, see... Figure 7 When the microguide wire 501 is wound n turns along the width of the groove 202 from top to bottom to fill the groove, the winding drum 201 needs to rotate n turns to complete the winding of the first layer of microguide wire. Since the winding drum 201 and the rotating shaft 408 are coaxially set and fixedly connected, the rotating shaft 408 needs to rotate n turns. See [reference needed]. Figures 3 to 5 At this time, the eccentric wheel 403 needs to rotate 0.5 turns to allow the guide hole 302 to move from one side of the groove 202 to the other side. Therefore, the rotation speed of the rotating shaft 408 is 2n times the rotation speed of the eccentric wheel 403, the rotation speed of bevel gear 1 401 is 2n times the rotation speed of bevel gear 2 402, and the number of teeth of bevel gear 2 402 is 2n times the number of teeth of bevel gear 1 401.

[0044] While the rotating shaft drives the winding drum 201 to rotate, it can also drive the guide 301 to reciprocate at a uniform linear speed through the transmission mechanism. The structure is simple and reliable, the manufacturing cost is low, and the interventional micro-guide wire storage device can be used as a disposable product.

[0045] In one embodiment of this application, the housing 101 includes an upper housing 104 and a lower housing 105. A rotating shaft 408 is vertically arranged, and the rotating shaft 408 and guide member 301 are connected to the upper housing 104. The rotating shaft 408 has two shoulders. The upper housing 104 limits the rotating shaft 408 axially and radially through the two shoulders, so that the rotating shaft 408 can only rotate around its own axis, and realizes the connection between the rotating shaft 408 and the upper housing 104. The guide member 301 is slidably or rollingly connected to the upper housing 104 through a hole structure or a guide rail structure, so that the guide member 301 can only move linearly relative to the upper housing 104 along the axial direction of the rotating shaft. Bevel gear 1 401, bevel gear 2 402, and eccentric wheel 403 are all disposed on the upper housing 104 and pivotally connected to the upper housing 104 around their respective rotation axes.

[0046] The lower housing 105 is provided with a receiving cavity 102 and a microguidewire hole 103; the upper housing 104 is detachably connected to the lower housing 105 to open or close the receiving cavity 102. Medical personnel can then open the receiving cavity 102 and pour in liquids such as saline solution, allowing the microguidewire 501 wound on the spool 201 to be immersed in the liquid to meet clinical surgical needs.

[0047] Further, see Figure 1 The lower housing 105 is provided with a sliding groove 106 extending axially along the rotation axis. The sliding groove 106 extends to the upper end face of the lower housing 105. When the upper housing 104 and the lower housing 105 are connected, the guide member 301 connected to the upper housing 104 can be inserted into the sliding groove 106 and slidably connected with the sliding groove 106, thereby ensuring that the guide hole 302 can be correspondingly set with the wire groove 202 in the receiving cavity 102 to guide the micro guide wire 501.

[0048] Further, see Figure 1 The rotating shaft 408 is pivotally connected to the upper housing 104. One end face of the winding drum 201 is inserted into the rotating shaft 408. One end face of the winding drum 201 and the other end face of the rotating shaft 408 have a non-circular cross-section hole, and the other end face has a rod that mates with the hole. The rod has a non-circular cross-section, thus achieving a detachable and fixed connection between the winding drum 201 and the rotating shaft 408, and a driving connection between the rotating shaft 408 and the winding drum 201. The other end face of the winding drum 201 is inserted into the lower housing 105 through a plug-in structure. One end face of the winding drum 201 and the lower housing 105 have a circular cross-section hole, and the other end face has a rod that mates with the hole. The rod has a circular cross-section, thus allowing the winding drum 201 to rotate relative to the lower housing 105. When the upper housing 104, lower housing 105, and winding drum 201 are connected, the two different insertion structures are coaxially arranged with the rotating shaft 408. The rotating shaft 408 can drive the winding drum 201 to rotate relative to the upper housing 104 and lower housing 105 within the receiving cavity 102. When installing the microguidewire, the upper housing 104 and lower housing 105 can be separated, the receiving cavity 102 can be opened, and the winding drum 201 can be separated from the rotating shaft 408 and lower housing 105 to facilitate the microguidewire 501 passing through the microguidewire hole 103 and to facilitate the connection between the tail end of the microguidewire 501 and the winding drum 201. After the microguidewire 501 is installed, a liquid such as physiological saline is added to the receiving cavity 102 to soak the microguidewire 501. Then, the winding drum 201 is connected to the rotating shaft 408 and lower housing 105, and the receiving cavity 102 is closed.

[0049] In one embodiment of this application, the microguidewire orifice 103 is provided with an elastic valve 111. Under normal conditions, the elastic valve 111 closes the microguidewire orifice 103. See [link to relevant documentation]. Figure 10Two opposing elastic valves 111 are fixedly connected to the inner wall of the microguidewire hole 103. The elastic valves 111 can be made of medical-grade elastic materials such as medical-grade silicone. The elastic valves 111 are two symmetrically arranged silicone valves. The base of the elastic valves 111 is fixed to the inner wall of the microguidewire hole, and the free ends are attached to each other to close the channel under normal conditions. When installing the microguidewire 501, the upper housing 104 and the lower housing 105 are separated, and the receiving cavity 102 can be opened. The microguidewire 501 passes between the two elastic valves 111, so that the tail end of the microguidewire 501 is fixedly connected to the winding spool 201, and the head end of the microguidewire 501 is located outside. At the same time, physiological saline or other liquids are added into the receiving cavity 102, so that the microguidewire 501 enters the liquid. Then, the receiving cavity 102 is closed, and the two elastic valves 111 abut against the side wall of the microguidewire 501 under their own elasticity, sealing the microguidewire hole 103 and preventing the liquid in the receiving cavity 102 from entering the outside through the microguidewire hole 103 and causing leakage. Meanwhile, when the microguide wire 501 is wound on the winding drum 201, the friction between the elastic valve 111 and the microguide wire 501 will prevent the microguide wire 501 from being wound on the winding drum 201, so that the section of the microguide wire 501 between the winding drum 201 and the microguide wire hole 103 is straightened, thereby allowing the microguide wire 501 to be wound more tightly on the winding drum 201.

[0050] In one embodiment of this application, the lower end face of the upper housing 104 is provided with at least one positioning part 107, and the upper end face of the lower housing 105 is provided with at least one positioning part 108. The number of positioning parts 107 and positioning parts 108 are equal, and the positioning parts 107 and positioning parts 108 are inserted into each other. See [reference needed] Figure 1 Positioning part 107 is a rod-shaped element, and positioning part 2 108 is a hole that mates with positioning part 107. Positioning part 107 can be inserted into positioning part 2 108. By using the insertion and mating of positioning part 107 and positioning part 2 108, the upper housing 104 and the lower housing 105 are connected and positioned, and the upper housing 104 and the lower housing 105 are prevented from rotating around the axis of rotation 408.

[0051] In one embodiment of this application, the upper housing 104 and the lower housing 105 are connected by a snap-fit ​​structure, which includes a claw 109 and a slot 110. See [link to relevant documentation]. Figure 10 The upper housing 104 is provided with a claw 109, and the lower housing 105 is provided with a slot 110. The claw 109 can be engaged with the slot 110, thereby achieving a detachable and fixed connection between the upper housing 104 and the lower housing 105, and the receiving cavity 102 is closed. When it is necessary to open the receiving cavity 102, the claw 109 disengages from the slot 110, and the upper housing 104 can be separated from the lower housing 105, thereby opening the receiving cavity 102.

[0052] Those skilled in the art to which this application pertains will understand that there are various ways in which the winding drum 201 can be rotated in the winding direction by means of the rotating shaft 408, see [link to relevant documentation]. Figure 11 A drive device adapted to the interventional microwire storage device is provided. The placement platform 602 of the drive device has a mounting groove for placing the housing 101 to fix the position of the housing 101. The drive device also has a lifting structure and a handwheel 601 pivotally connected to the lifting structure. The handwheel 601 can rotate around a vertical axis. In use, the lifting structure is raised so that the interventional microwire storage device can be placed into the mounting groove. Then, the lifting structure is lowered, and the handwheel 601 is inserted into a non-circular insertion hole on the end face of the rotating shaft 408. The handwheel 601 is coaxial with the rotating shaft 408, so the handwheel 601 can drive the rotating shaft 408 to rotate in the wire winding direction to realize the winding of the microwire 501. When releasing the wire, the medical staff pulls the microwire 501, so that the winding spool 201 rotates in the wire releasing direction, so that the medical staff can send the microwire 501 into the body's natural cavity. After use, the lifting structure rises, and the interventional microwire storage device moves upward and detaches from the mounting slot. The interventional microwire storage device is made entirely of medical plastic and is used as a disposable product.

[0053] See Figure 11 The lifting structure includes a slider 604 and a vertical guide rail 603. A handwheel 601 is pivotally connected to the slider 604, and the slider 604 is slidably connected to the vertical guide rail 603. A locking bolt 605 is threaded onto the slider 604. When the height of the handwheel 601 needs to be locked, the locking bolt 605 rotates and abuts against the vertical guide rail 603, locking the position of the slider 604 relative to the vertical guide rail 603, thereby locking the height of the handwheel 601. When the height of the handwheel 601 needs to be adjusted, the locking bolt 605 is unscrewed, allowing the slider 604 to move up and down along the vertical guide rail 603.

[0054] Of course, the microwire take-up device itself can also have a power structure. The rotating shaft 408 is also connected to the housing 101 through a spiral spring, so that the rotating shaft 408 has a tendency to rotate in the take-up direction, and the winding drum 201 has a tendency to wind the microwire 501 under the torque of the spiral spring. Furthermore, the rotating shaft 408 is also connected to the housing 101 through a ratchet and pawl mechanism. The ratchet and pawl mechanism restricts the rotation of the rotating shaft 408 in the take-up direction, but does not restrict the rotation of the rotating shaft 408 in the unwinding direction. The ratchet and pawl mechanism includes a ratchet that is coaxially arranged and fixedly connected to the rotating shaft 408, and a pawl that is pivotally connected to the housing 101. The pivot axis of the pawl is parallel to the axis of the rotating shaft 408. The pawl is also connected to the housing 101 through a spring. Under the elastic force of the spring, the pawl abuts against the ratchet, locking the ratchet to rotate in the take-up direction under the action of the spiral spring. When the microguidewire 501 needs to be retrieved, medical staff move the pawl to separate it from the ratchet. This removes the pawl from the ratchet fixed to the rotating shaft 408, allowing the winding drum 201, also fixed to the rotating shaft 408, to rotate in the winding direction under the action of the spiral spring. When the microguidewire 501 needs to be released, medical staff overcome the elastic force of the spiral spring and pull the microguidewire 501 outwards. The rotating shaft 408 and the winding drum 201 rotate in the unwinding direction, allowing the microguidewire 501 to be pulled to the outside.

[0055] Of course, the motor can be detachably connected to the rotating shaft 408, and the rotation direction of the motor can be controlled by the controller, thereby controlling the rotation direction of the rotating shaft 408 and the winding drum 201, so as to realize the purpose of storing or releasing the microguide wire 501.

[0056] It should be understood that although this specification describes various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0057] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of this application and are not intended to limit the scope of protection of this application. All equivalent implementations or modifications made without departing from the spirit of the art of this application, such as combinations, divisions or repetitions of features, should be included within the scope of protection of this application.

Claims

1. An interventional microguidewire storage device, characterized in that, include: The housing has a receiving cavity, and the housing also has a micro guidewire hole that connects the receiving cavity to the outside. The rotating shaft, pivotally connected, is capable of rotating relative to the housing about its own axis; A winding spool is disposed in the receiving cavity. The winding spool is coaxially arranged and connected to the rotating shaft. The winding spool has a groove along its circumference for winding the micro guide wire. One end of the micro guide wire is fixed to the winding spool. A guide member is axially movable in the housing along the rotation axis. The guide member is provided with a guide hole for guiding the micro-guide wire to adhere to the wire groove during rotation. The micro-guide wire can pass through the micro-guide wire hole and the guide hole in sequence and then be fixed on the winding drum to ensure that the micro-guide wire is wound into the wire groove of the winding drum during rotation. The transmission mechanism connects the rotating shaft and the guide component, and transmits the rotational motion of the rotating shaft to the guide component through the transmission mechanism; The rotation of the rotating shaft around its own axis in a first direction causes the winding drum to rotate relative to the housing within the receiving cavity, thereby winding the microguide wire into the wire groove. Simultaneously, the rotation of the rotating shaft, through the transmission mechanism, causes the guide member to move axially on the rotating shaft, thereby changing the position of the microguide wire relative to the wire groove as the winding drum rotates, ensuring that the microguide wire does not overlap within the wire groove. The rotation in the second direction is opposite to the rotation in the first direction. When the rotating shaft rotates in the second direction, the microguide wire separates from the wire groove.

2. The interventional microguidewire storage device according to claim 1, characterized in that, The transmission mechanism includes a swing arm and an eccentric wheel; The middle part of the swing arm is pivotally connected to the housing and can rotate around the swing arm rotation axis. The swing arm rotation axis is perpendicular to the axial direction of the rotation shaft. The first end of the swing arm is provided with a first sliding groove along the length direction of the swing arm, and the second end of the swing arm is provided with a second sliding groove along the length direction of the swing arm. The eccentric wheel is pivotally connected to the housing. The eccentric wheel's rotation axis is parallel to the swing arm's rotation axis. The eccentric wheel is provided with a first connecting part extending along the straight line of the swing arm's rotation axis. The first connecting part is not coaxial with the eccentric wheel's rotation axis. The first connecting part is inserted into the first sliding groove and can move within the first sliding groove along the extension direction of the first sliding groove. The guide member is provided with a second connecting part extending along the straight line direction of the rotation axis of the eccentric wheel. The second connecting part is inserted into the second slide groove and can move in the second slide groove along the extension direction of the second slide groove. When the rotating shaft drives the eccentric wheel to rotate around the rotation axis of the eccentric wheel, the eccentric wheel drives the guide to reciprocate linearly along the axial direction of the rotating shaft through the swing arm.

3. The interventional microguidewire storage device according to claim 2, characterized in that, The transmission mechanism also includes bevel gear one and bevel gear two; The bevel gear is coaxially arranged with the rotating shaft and fixedly connected; The second bevel gear is coaxial with the rotation axis of the eccentric wheel and is fixedly connected to the eccentric wheel; The first bevel gear and the second bevel gear mesh, and when the rotating shaft rotates, the first bevel gear and the second bevel gear drive the eccentric wheel to rotate around the rotation axis of the eccentric wheel. The 360-degree rotation of bevel gear one drives the rotation of bevel gear two, which in turn drives the rotation of the eccentric wheel. The rotation of the eccentric wheel causes the guide to change by a diameter greater than or equal to that of a micro guide wire on the longitudinal axis, thus ensuring that a change of a diameter greater than or equal to that of a micro guide wire occurs every time the winding is completed, ensuring that the micro guide wires do not overlap during winding.

4. The interventional microguidewire storage device according to claim 3, characterized in that, The axis of the second bevel gear is perpendicular to and intersects the axis of the rotating shaft.

5. The interventional microguidewire storage device according to claim 1, characterized in that, The housing includes an upper housing and a lower housing; The rotating shaft is vertically arranged, and the rotating shaft, the guide member, and the upper housing are connected. The lower housing is provided with the receiving cavity and the micro guidewire hole; The upper housing and the lower housing are detachably connected to open or close the receiving cavity; The lower housing is provided with a sliding groove extending axially along the rotation axis, the sliding groove extending to the upper end face of the lower housing, and the guide member can be inserted into the sliding groove and slidably connected with the sliding groove.

6. The interventional microwire storage device according to claim 5, characterized in that, The winding spool is detachably connected to the upper housing and the lower housing; The two end faces of the winding drum are respectively connected to the rotating shaft and the lower housing through a plug-in structure. When the upper housing, the lower housing, and the winding drum are connected, the two plug-in structures are coaxially arranged with the rotating shaft.

7. The interventional microguidewire storage device according to claim 5, characterized in that, The lower end face of the upper housing is provided with at least one positioning part one, and the upper end face of the lower housing is provided with at least one positioning part two. The number of positioning parts one and positioning parts two are equal, and the positioning parts one and positioning parts two are inserted into each other.

8. The interventional microwire storage device according to claim 5, characterized in that, The upper housing and the lower housing are connected by a snap-fit ​​structure.

9. The interventional microguidewire storage device according to claim 1, characterized in that, The microguidewire orifice is equipped with an elastic valve, which normally closes the microguidewire orifice.

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