Feeding structure of long and thin object

Abstract

The utility model discloses a feeding structure for a slender object. The feeding structure comprises a base; the rotating seat is rotatably arranged on the base, the rotating seat is provided with a rotating shaft, the rotating seat is provided with a containing space and an access opening, the access opening is communicated with the containing space, and the access opening is suitable for avoiding long and thin objects; the driving assembly is arranged in the containing space, and the driving assembly is used for being connected with a long and thin object; the rotating part is rotatably arranged on the base, the rotating part rotates around a rotating shaft, the rotating part is configured to coaxially rotate with the rotating seat and is connected with the driving assembly, an avoiding opening is formed in the rotating part, and the avoiding opening at least extends to the rotating shaft of the rotating part; wherein the rotating seat is provided with a first induction part, the rotating piece is provided with a second induction part, and a detection piece is arranged on the base and used for detecting the first induction part and the second induction part. According to the utility model, an operator can conveniently align the entrance and the avoiding opening, so that long and thin objects can be conveniently loaded and taken out, and the convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of interventional surgical instruments, and in particular to a feeding structure for a slender object. Background Art

[0002] Slender objects can be used to perform procedures in narrow spaces due to their structural characteristics. For example, when doctors perform interventional surgery on patients, they usually first insert a sheath into the blood vessel through vascular puncture to establish an internal and external access channel for interventional treatment. Then, through the sheath, a catheter and guidewire are inserted into the blood vessel to find the specific lesion location, so as to perform treatment or place a stent, etc., such as injecting examination or treatment fluids (such as contrast fluid) through the rear end of the catheter.

[0003] In related technologies, slender objects, such as catheters, are directly fed into the sheath by a feeding structure. The slender object passes through a rotating seat, which contains a drive assembly. The drive assembly drives the catheter to move, and the rotation of the rotating seat causes the catheter to rotate. A rotating component is connected to the drive assembly and provides power to the drive assembly. The rotating component rotates coaxially with the rotating seat. The rotating seat has an inlet and outlet, while the rotating component has a clearance opening. The catheter can only be inserted or removed when the inlet and outlet are aligned with the clearance opening. The inlet and outlet and the clearance opening are small, and the operator needs to perform multiple operations to align the inlet and outlet with the clearance opening. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a feeding structure that improves convenience.

[0005] A feeding structure for an elongated object according to an embodiment of the present invention includes: a base; a rotating seat rotatably disposed on the base, the rotating seat having a rotation axis, the rotating seat having a receiving space and an inlet / outlet, the inlet / outlet communicating with the receiving space, the inlet / outlet being adapted to avoid the elongated object; a driving assembly disposed within the receiving space, the driving assembly being used to connect to the elongated object to drive the elongated object to move; a rotating member rotatably disposed on the base, the rotating member rotating around the rotation axis and connected to the driving assembly to drive the driving assembly to work, the rotating member having an avoidance opening extending at least to the rotation axis, the avoidance opening being used to avoid the elongated object; wherein, the rotating seat has a first sensing part, the rotating member has a second sensing part, the base is provided with a detection element, the detection element being used to detect the first sensing part and the second sensing part, so as to issue an alignment signal when the avoidance opening corresponds to the inlet / outlet.

[0006] According to the feeding structure for slender objects in this embodiment of the present invention, the cooperation between the detection element and the first sensing part and the second sensing part facilitates the operator to align the entrance and exit and the clearance opening, thereby facilitating the loading and unloading of slender objects and improving convenience.

[0007] In some embodiments, there are multiple detection elements, which are spaced apart along the length of the rotating seat. At least some of the detection elements correspond to the first sensing element, and the remaining detection elements correspond to the second sensing element.

[0008] In some embodiments, the base includes: a base body; a first mounting portion disposed on the base body, and a rotating seat disposed on the first mounting portion; a second mounting portion disposed on the base body, the second mounting portion being spaced apart from the first mounting portion, and a detection element disposed at the end of the second mounting portion away from the base body.

[0009] In some embodiments, the rotating seat includes: a seat body, wherein the accommodating space is disposed in the seat body; and a force-receiving part, wherein the force-receiving part is disposed in the seat body and is adapted to bear the applied force to drive the seat body to rotate.

[0010] In some embodiments, the force-receiving part is configured as a first tooth, which is disposed at one end of the seat body, and the rotating member is provided with a second tooth, which is disposed on the side of the seat body opposite to the first tooth; wherein, the first sensing part is disposed on the first tooth, and the second sensing part is disposed on the second tooth.

[0011] In some embodiments, the system further includes a control unit and a first power module and a second power module. The power output gear of the first power module meshes with the first tooth, and the power output gear of the second power module meshes with the second tooth. The control unit is electrically connected to the first power module, the second power module, and a plurality of detection units to control the first power module and the second power module to stop working when the alignment signal is received. The control unit is also used to determine the minimum rotation angle and direction of the first tooth and the second tooth from their respective current positions to the alignment state based on the rotation angle of the first tooth and the second tooth from the previous alignment state to the current position.

[0012] In some embodiments, the drive assembly includes at least two rollers, which are disposed on opposite sides of the elongated object and abut against the elongated object; wherein at least a portion of the rollers are connected to a transmission gear, and the rotating member is provided with a first power tooth that meshes with the transmission gear to drive the elongated object to move.

[0013] In some embodiments, there are at least four rollers, some of which are spaced apart along the length of the rotating seat, and there are multiple transmission gears, each of which is connected to one of the rollers, with at least some of the transmission gears meshing along the length.

[0014] In some embodiments, the plurality of transmission gears include a first gear and a second gear, the first gear meshing with the first power tooth, the second gear being disposed on the side of the first gear away from the first power tooth, and an auxiliary gear being provided between the first gear and the second gear.

[0015] In some embodiments, the rotating seat is provided with a clearance hole that communicates with the receiving space. A connecting shaft passes through the clearance hole, one end of which extends into the receiving space and is connected to the roller, and the other end of which extends out of the receiving space and is connected to the transmission gear.

[0016] In some embodiments, the rotating member includes: a rotating body that rotates about the rotating axis, a first power tooth disposed on the axial end face of the rotating body; an edge portion disposed on the outer periphery of the rotating body, and a second sensing portion disposed on the outer wall surface of the edge portion; wherein the clearance opening is partially disposed on the rotating body and partially disposed on the edge portion; the edge portion is provided with a second power tooth, and in the axial direction, the first power tooth and the second power tooth are distributed on both sides of the rotating body.

[0017] In some embodiments, the multiple teeth of the first power tooth are independently arranged and configured as a conical body extending outward in a straight line along the axial end plane of the rotating body. The gear formed by the first power tooth is a planar tooth, and the gear formed by the second power tooth is a conical tooth.

[0018] In some embodiments, the thickness of the edge portion is greater than the thickness of the rotating body, and both axial ends protrude from the two end faces of the rotating body; the second power tooth is disposed on the end face of the edge portion.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the feed structure in an embodiment of the present invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the feed structure in an embodiment of the present invention. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the feed structure in an embodiment of the present invention. Figure 3 ;

[0024] Figure 4 for Figure 3 Enlarged view of a section at point I;

[0025] Figure 5 This is a schematic diagram showing the engagement of the transmission gear and the auxiliary gear in an embodiment of this utility model;

[0026] Figure 6 This is a schematic diagram showing the distribution of the first gear and the second gear in an embodiment of this utility model;

[0027] Figure 7 This is a schematic diagram showing the connection between the cover and the seat body in an embodiment of this utility model;

[0028] Figure 8 This is a schematic diagram of the rotating component in an embodiment of the present invention. Figure 1 ;

[0029] Figure 9 This is a schematic diagram of the rotating component in an embodiment of the present invention. Figure 2 .

[0030] Figure label:

[0031] 100. Feed structure;

[0032] 10. Base; 11. Inspection component; 12. Base body; 13. First mounting part; 14. Second mounting part; 141. Mounting platform;

[0033] 20. Rotating seat; 22. Inlet / outlet; 23. First sensing unit; 24. Seat body; 241. Cover; 25. Force-bearing part; 27. Connecting shaft;

[0034] 30. Drive assembly; 31. Roller; 32. Transmission gear; 321. First gear; 322. Second gear; 323. Auxiliary gear; 324. Third gear;

[0035] 40. Rotating component; 41. Clearance opening; 42. Second sensing part; 43. First power tooth; 44. Rotating main body; 45. Edge part; 46. Second power tooth; 200. Slender object. DETAILED DESCRIPTION

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0038] Furthermore, features specified as "first" or "second" may explicitly or implicitly include one or more of the same feature, used to distinguish and describe features, without any order or distinction of importance.

[0039] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] The feeding structure 100 for slender objects according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0042] Reference Figure 1 According to an embodiment of the present invention, a feeding structure 100 for a slender object includes: a base 10, a rotating seat 20, a driving assembly 30, and a rotating component 40.

[0043] A rotating base 20 is rotatably mounted on a base 10. The rotating base 20 has a rotation axis and is provided with a receiving space and an inlet / outlet 22. The inlet / outlet 22 communicates with the receiving space and is adapted to avoid a long, thin object 200. A drive assembly 30 is disposed within the receiving space and is used to connect to the long, thin object 200 to drive its movement. A rotating member 40 is rotatably mounted on the base 10 and rotates about a rotation axis. It is connected to the drive assembly 30 to drive the drive assembly 30 to operate. The rotating member 40 is provided with a clearance opening 41 that extends at least to the rotation axis and is used to avoid the long, thin object 200.

[0044] The rotating base 20 has a first sensing part 23, the rotating part 40 has a second sensing part 42, and the base 10 is provided with a detection part 11. The detection part 11 is used to detect the first sensing part 23 and the second sensing part 42 so as to issue a centering signal when the avoidance opening 41 corresponds to the entrance 22.

[0045] Specifically, the receiving space on the rotating base 20 is used to accommodate the drive assembly 30 and the elongated object 200. The drive assembly 30 applies a force to the elongated object 200, driving it to move. It can be understood that when the rotating base 20 rotates relative to the base 10, it drives the elongated object 200 to rotate. The rotating base 20 is provided with an inlet / outlet 22 communicating with the receiving space, through which the elongated object 200 is inserted into the receiving space. The following will describe in detail the use of catheters, guidewires, and elongated objects 200 with treatment supports.

[0046] The rotating component 40 is located outside the receiving space and is rotatable relative to the base 10. The rotating component 40 is connected to the drive assembly 30, providing power to the drive assembly 30 so that the drive assembly 30 drives the elongated object 200 to move. The rotating component 40 is provided with a clearance opening 41, which extends to the rotation axis of the rotating component 40. The elongated object 200 passes through the clearance opening 41 to the position of the rotation axis. It can be understood that the rotation axis is a virtual axis, and the rotating component 40 rotates coaxially with the rotating base 20. When the rotating component 40 or the rotating base 20 rotates, the elongated object 200 is always at the position of the rotation axis, thereby avoiding interference.

[0047] Due to its structural characteristics, the slender object 200 can operate in a slender space. For example, when doctors perform interventional surgery on patients, they usually first insert a sheath into the blood vessel through vascular puncture to establish an internal and external channel for interventional treatment. Then, through the sheath, a catheter and guidewire are inserted into the blood vessel to find the specific lesion location, so as to perform treatment or place a stent, etc., such as injecting examination or treatment fluids (such as contrast fluid) through the rear end of the catheter.

[0048] In related technologies, slender objects, such as catheters, are directly fed into the sheath by a feeding structure. The slender object passes through a rotating seat, which contains a drive assembly. The drive assembly drives the catheter to move, and the rotation of the rotating seat causes the catheter to rotate. A rotating component is connected to the drive assembly and provides power to the drive assembly. The rotating component rotates coaxially with the rotating seat. The rotating seat has an inlet and outlet, while the rotating component has a clearance opening. The catheter can only be inserted or removed when the inlet and outlet are aligned with the clearance opening. The inlet and outlet and the clearance opening are small, and the operator needs to perform multiple operations to align the inlet and outlet with the clearance opening.

[0049] In this embodiment of the present invention, a first sensing part 23 is provided on the rotating seat 20, and a second sensing part 42 is provided on the rotating member 40. At the same time, a detection member 11 corresponding to the first sensing part 23 and the second sensing part 42 is provided. The detection member 11 obtains the attitude information of the rotating seat 20 by sensing the first sensing part 23, thereby indirectly obtaining the position information of the entrance / exit 22. The detection member 11 obtains the attitude information of the rotating member 40 by sensing the second sensing part 42, thereby indirectly obtaining the position information of the clearance opening 41. When the entrance / exit 22 and the clearance opening 41 are aligned, an alignment signal is issued.

[0050] It should be noted that the alignment signal can be sent to the control unit, which controls the rotating seat 20 and the rotating part 40 to stop rotating, thereby keeping the exit 22 aligned with the clearance opening 41. The control unit can also control the indicator light or the indicator horn to work, indicating to the operator that the exit 22 and the clearance opening 41 are aligned.

[0051] Specifically, the drive assembly 30 applies a force to the elongated object 200, for example, the elongated object 200 is mounted between two rollers 31, and the rollers 31 rotate to drive the elongated object 200 to move.

[0052] According to the slender object feeding structure 100 of this utility model embodiment, the detection element 11, in cooperation with the first sensing part 23 and the second sensing part 42, facilitates the operator to align the inlet / outlet 22 and the clearance opening 41, thereby facilitating the loading and unloading of the slender object 200 and improving convenience.

[0053] Reference Figure 1 In some embodiments, there are multiple detection elements 11, which are spaced apart along the length of the rotating seat 20. At least some of the detection elements 11 correspond to the first sensing part 23, and the other part of the detection elements 11 correspond to the second sensing part 42.

[0054] The first sensing unit 23 corresponds to an independent detection element 11, and the second sensing unit 42 corresponds to an independent detection element 11. Different sensing units correspond to different detection elements 11.

[0055] In the above scheme, by setting different detection elements 11 to detect different sensing parts, the detection accuracy is improved, the probability of error is reduced, and the overall structure works more reliably.

[0056] Specifically, the detection element 11 includes a first detection element and a second detection element, with the first detection element corresponding to the first sensing unit 23 and the second detection element corresponding to the second sensing unit 42. Of course, more detection elements 11 can be provided, such as a third detection element, a fourth detection element, etc., which will not be elaborated here.

[0057] Reference Figure 2 In some embodiments, the base 10 includes: a base body 12, a first mounting part 13, and a second mounting part 14.

[0058] The first mounting part 13 is provided on the base body 12, and the rotating seat 20 is provided on the first mounting part 13. The second mounting part 14 is provided on the base body 12, and the second mounting part 14 is spaced apart from the first mounting part 13. The detection element 11 is provided at the end of the second mounting part 14 away from the base body 12.

[0059] The first mounting part 13 and the second mounting part 14 are disposed on the same side of the base body 12. The first mounting part 13 and the second mounting part 14 have a certain size and both extend away from the base body 12.

[0060] In the above scheme, by setting the detection element 11 at one end of the second mounting part 14 away from the base body 12, and extending the second mounting part 14 away from the base body 12, the detection element 11 is positioned at a distance from the base body 12, thereby increasing the detection range of the detection element 11 and avoiding interference.

[0061] Reference Figure 2 Specifically, the end of the second mounting part 14 away from the base body 12 is constructed as a mounting platform 141. The detection component 11 is set on the mounting platform 141. By setting the mounting platform 141, a larger installation area is provided for the installation of the detection component 11, which facilitates the installation of the detection component 11.

[0062] Specifically, there are two first mounting parts 13, which are respectively located on opposite sides of the rotating seat 20, and the first mounting seats on both sides support the rotation of the rotating seat 20.

[0063] Reference Figure 3 In some embodiments, the rotating seat 20 includes a seat body 24 and a force-receiving part 25.

[0064] The accommodating space is provided in the seat body 24. The force-bearing part 25 is provided in the seat body 24, and the force-bearing part 25 is adapted to bear the applied force to drive the seat body 24 to rotate.

[0065] The force-bearing part 25 is connected to the seat body 24. Other components or operators apply force to the force-bearing part 25, which drives the seat body 24 to rotate.

[0066] In the above scheme, by setting a force-bearing part 25 specifically to bear the force, the force-bearing part 25 is different from the main body 24, and the main body 24 is provided with a accommodating space, thereby making the functions of some parts clearer and avoiding interference.

[0067] Specifically, the force-bearing part 25 can be integrally formed on the seat body 24, or it can be independently formed and then connected to the seat body 24.

[0068] Reference Figures 1 to 3 In some embodiments, the force-receiving part 25 is configured as a first tooth, which is located at one end of the seat body 24, and the rotating part 40 is provided with a second tooth, which is located on the side of the seat body 24 away from the first tooth; wherein, the first sensing part 23 is located on the first tooth, and the second sensing part 42 is located on the second tooth.

[0069] Specifically, the first tooth and the second tooth are respectively located on opposite sides of the main body 24, with a certain distance between them.

[0070] In the above scheme, the force-bearing part 25 is constructed as the first tooth and the rotating part 40 is constructed as the second tooth. The first tooth and the second tooth are teeth, which allows the operator's hand to make good contact with the teeth or mesh with the power output gear, making it convenient to receive force. At the same time, it facilitates the forming of the first sensing part 23 and the second sensing part 42, and avoids interference between the first sensing part 23 and the second sensing part 42 when the rotating seat 20 and the rotating part 40 rotate.

[0071] In some embodiments, the feed structure 100 further includes a control element and a power output gear, the power output gear meshing with a first tooth and a second tooth, and the control element electrically connecting the power output gear and a plurality of detection elements 11 to control the power output gear to stop working when an alignment signal is received.

[0072] The control unit is electrically connected to the power output gear and the detection unit 11. The control unit controls the power output gear to work. The power output gear meshes with the first tooth and the second tooth. The power output gear drives the first tooth and the second tooth to rotate, thereby controlling the inlet / outlet 22 to automatically align with the clearance opening 41. When the inlet / outlet 22 and the clearance opening 41 are aligned, the detection unit 11 transmits an alignment signal to the control unit, and the control unit controls the power output gear to stop working.

[0073] In the above scheme, by setting up control components and power output gears, the entrance / exit 22 and the clearance opening 41 are automatically aligned, which improves the level of automation and facilitates the operation of personnel.

[0074] Specifically, there are two power output gears, which mesh with the first tooth section and the second tooth section respectively. The two power output gears are electrically connected to the control components, which improves the control accuracy.

[0075] In some embodiments, the feed structure 100 further includes a control unit and a first power module and a second power module. The power output gear of the first power module meshes with a first tooth, and the power output gear of the second power module meshes with a second tooth. The control unit is electrically connected to the first power module, the second power module, and a plurality of detection elements 11, respectively, to control the first power module and the second power module to stop working when a centering signal is received. The control unit is also used to determine the minimum rotation angle and direction of the first tooth and the second tooth from their respective current positions to the centering state, respectively, based on the rotation angle of the first tooth and the second tooth from the previous centering state to the current position.

[0076] The first power module and the second power module output power, with the first power module driving the first tooth to rotate and the second power module driving the second tooth to rotate.

[0077] In the above scheme, by setting up a first power module and a second power module, the degree of automation is improved, the entrance / exit 22 and the avoidance opening 41 are automatically aligned, which facilitates the operation of the operator, and the control components determine the minimum rotation angle and direction, thereby improving the efficiency of the device.

[0078] For example, in the clockwise direction, the angle between the entrance / exit 22 and the plumb line is 30°. Compared with the scheme where the first tooth rotates 330° clockwise, the scheme where the first tooth rotates 30° counterclockwise is more efficient. Similarly, the clearance opening 41 and the second tooth have the same effect, which will not be elaborated here.

[0079] Reference Figure 7 In some specific embodiments, the seat body 24 is provided with a cover 241, which is rotatably disposed to cover the entrance 22.

[0080] Reference Figure 4 In some embodiments, the drive assembly 30 includes at least two rollers 31, which are disposed on opposite sides of the elongated object 200 and abut against the elongated object 200. At least some of the rollers 31 are connected to a transmission gear 32, and the rotating member 40 is provided with a first power tooth 43 that meshes with the transmission gear 32 to drive the elongated object 200 to move.

[0081] Rollers 31 are respectively provided on opposite sides of the slender object 200. The two rollers 31 abut against the slender object 200. When the rollers 31 rotate, the slender object 200 moves. The first power tooth 43 on the rotating part 40 meshes with the transmission gear 32, transmitting power to the rollers 31, thereby driving the rollers 31 to rotate.

[0082] In the above scheme, the slender object 200 is moved by the roller 31, which improves the reliability. At the same time, the power is transmitted by the meshing of the first power tooth 43 and the transmission gear 32, which further improves the reliability.

[0083] Specifically, the rollers 31 can be arranged in pairs, with one pair of rollers 31 arranged on opposite sides of the elongated object 200, or multiple pairs of rollers 31 arranged on opposite sides of the elongated object 200.

[0084] In some specific embodiments, the seat body 24 includes a first part and a second part. One side roller 31 of the elongated object 200 is disposed on the first part, and the other side roller 31 is disposed on the second part. The first part is adapted to increase or decrease the distance relative to the second part, thereby clamping the elongated object 200.

[0085] Reference Figures 3 to 5 In some embodiments, there are at least four rollers 31, some of which are spaced apart along the length of the rotating seat 20. There are multiple transmission gears 32, which are connected to the rollers 31 respectively, and at least some of the transmission gears 32 are meshed along the length.

[0086] Among them, there are multiple pairs of rollers 31, which are spaced apart along the length of the rotating seat 20. The transmission gears 32 are meshed along the length of the rotating seat 20, and the slender object 200 is driven by multiple driving forces to move.

[0087] In the above scheme, by setting rollers 31 and transmission gears 32 spaced apart along the length of the rotating seat 20, the slender object 200 is moved by multiple driving forces, making the movement of the slender object 200 more stable and improving stability.

[0088] Specifically, there are six rollers 31, with two pairs of rollers 31 facing each other. The three pairs of rollers 31 are arranged at intervals along the length of the rotating seat 20. There are three transmission gears 32, which are arranged at intervals along the length of the rotating seat 20. The three transmission gears 32 correspond one-to-one with the three pairs of gears.

[0089] Reference Figure 6In some embodiments, the plurality of transmission gears 32 include a first gear 321 and a second gear 322. The first gear 321 meshes with a first power tooth 43, and the second gear 322 is located on the side of the first gear 321 away from the first power tooth 43. An auxiliary gear 323 is provided between the first gear 321 and the second gear 322.

[0090] The first gear 321 and the second gear 322 are arranged sequentially along the length of the rotating seat 20. The first gear 321 meshes with the first power tooth 43, and the second gear 322 is connected to the first gear 321 through the auxiliary gear 323. The power transmitted by the first power tooth 43 is transmitted sequentially to the first gear 321, the auxiliary gear 323, and the second gear 322.

[0091] In the above scheme, by setting an auxiliary gear 323 between the first gear 321 and the second gear 322, the distance between two adjacent transmission gears 32 is increased. Correspondingly, the distance between adjacent rollers 31 is increased, and the distance between two adjacent force points of the slender object 200 is increased, thereby making the slender object 200 move more stably.

[0092] Specifically, the multiple transmission gears 32 may also include a third gear 324, a fourth gear, or more, thereby making the movement of the slender object 200 more stable. Correspondingly, an auxiliary gear 323 may also be provided between the second gear 322 and the third gear 324, and an auxiliary gear 323 may also be provided between the third gear 324 and the fourth gear. These can be repeated subsequently, and will not be elaborated here.

[0093] Reference Figure 6 In some embodiments, the rotating seat 20 is provided with a clearance hole that connects to the receiving space. A connecting shaft 27 is inserted through the clearance hole. One end of the connecting shaft 27 extends into the receiving space and is connected to the roller 31. The other end of the connecting shaft 27 extends out of the receiving space and is connected to the transmission gear 32.

[0094] The clearance hole connects the receiving space with the space outside the rotating seat 20. The connecting shaft 27 passes through the clearance hole. One end of the connecting shaft 27 is connected to the roller 31, and the other end is connected to the transmission gear 32. That is to say, the roller 31 and the transmission gear 32 are located inside and outside the receiving space, respectively.

[0095] In the above scheme, by setting the roller 31 and the transmission gear 32 inside and outside the accommodating space respectively, the space of each part is fully utilized, making the overall structure more compact and improving the space utilization rate.

[0096] Reference Figures 5 to 9 In some embodiments, the rotating member 40 includes a rotating body 44 and an edge portion 45.

[0097] The rotating body 44 rotates around a rotating axis. A first power tooth 43 is located on the side of the rotating body 44 facing the transmission gear 32; specifically, the first power tooth 43 is located on the axial end face of the rotating body 44. An edge portion 45 is located on the outer periphery of the rotating body 44, and a second sensing portion 42 is located on the outer wall surface of the edge portion 45. A clearance opening 41 is partially located on the rotating body 44, and the remaining portion is located on the edge portion 45. The edge portion 45 is provided with a second power tooth 46, and axially, the first power tooth 43 and the second power tooth 46 are distributed on both sides of the rotating body 44.

[0098] The edge portion 45 is located on the outer periphery of the rotating body 44, the clearance opening 41 is partially located on the rotating body 44 and partially located on the edge portion 45, and the clearance opening 45 extends to the center of the rotating body.

[0099] In the above scheme, the first power tooth 43 is located on the side of the rotating body 44 facing the transmission gear 32. The rotating body 44 transmits power to the transmission gear 32. The overall structure is clearer and the structure is simplified. In addition, the clearance 45 passes through the rotating body and the edge, which facilitates the placement of the slender object 200.

[0100] Furthermore, the first power gear 43 and the second power gear 46 are distributed on both sides of the rotating body 44, which facilitates the conversion of transmission direction, compresses the layout, makes the product small, and increases the flexibility of operating the product.

[0101] In some embodiments, the multiple teeth of the first power tooth 43 are independently arranged and configured as a conical body extending outward in a straight line along the axial end plane of the rotating body 44. The gear formed by the first power tooth 43 is a planar tooth, and the gear formed by the second power tooth 46 is a conical tooth.

[0102] Among them, the multiple teeth of the first power tooth 43 are independently arranged, and the adjacent teeth are spaced apart from each other. The first power tooth as a whole is a conical body, and the gear formed by the second power tooth 46 is a conical tooth.

[0103] In the above scheme, by setting the first power tooth as a conical body that extends outward in a straight line from the axial end plane of the rotating body 44, and the gear formed by the first power tooth is a planar tooth, and the gear formed by the second power tooth 46 is a conical tooth, the overall structure is simple, which facilitates processing and reduces costs.

[0104] In some embodiments, the thickness of the edge portion 45 is greater than the thickness of the rotating body 44, and both axial ends protrude from the two end faces of the rotating body 44 respectively; the second power tooth 46 is disposed on the end face of the edge portion 45.

[0105] The thickness of the edge portion 45 is greater than the thickness of the rotating body 44. The two ends of the edge portion 45 protrude from the two end faces of the rotating body 44 in the axial direction. The rotating body 44 is located in the middle of the edge portion 45.

[0106] In the above solution, the thickness of the edge portion 45 is greater than the thickness of the rotating body 44, and the two ends of the edge portion 45 protrude from the two end faces of the rotating body 44 respectively. The second power tooth 46 is disposed on the end face of the edge portion 45, which further enables the product to be miniaturized, enhances the overall strength, and reduces the probability of damage.

[0107] The following is in conjunction with the appendix Figures 1 to 9 The feeding structure 100 of this utility model embodiment is described in detail.

[0108] The feed structure 100 includes: a base 10, a rotating seat 20, a drive assembly 30, and a rotating component 40.

[0109] The rotating seat 20 includes a seat body 24 and a force-receiving part 25. The force-receiving part 25 is constructed as a first tooth. The first tooth is fixed together with the seat body 24. When the first tooth rotates, it drives the seat body 24 to rotate together, thereby driving the guide wire clamped in the seat body 24 to rotate.

[0110] The rotating part 40 is constructed as a second tooth. The second tooth transmits power to the seat body 24 through the transmission gear 32, driving the roller 31 in the receiving space to rotate and driving the clamping guide wire to make linear motion.

[0111] The feed structure 100 can simultaneously achieve the rotation and feed of the guidewire. It is compact in structure, the combined motion of the guidewire is smooth, and it is convenient to place and replace the guidewire during the operation (the cover 241 can be opened easily).

[0112] Since the combined motion of the guidewire is completed by the same rotating seat 20, when the first tooth and the second tooth are synchronized, they rotate together with the rotating seat 20. Therefore, the guidewire clamped in the rotating seat 20 only has the motion of rotation.

[0113] When there is a speed difference between the first tooth and the second tooth (when the second tooth rotates while the first tooth is stationary, or when the first tooth and the second tooth rotate in opposite directions, or when the first tooth and the second tooth rotate in the same direction but at different speeds), the guide wire clamped in the rotating seat 20 will have a linear motion.

[0114] When the guidewire is placed in the appropriate position, and medical devices such as stents or balloons are to be placed, the guidewire must not move in a straight line to prevent changes in its position. Therefore, when the rotating seat 20 is opened, the guidewire must not move in a straight line.

[0115] The specific plan and operating steps are as follows:

[0116] A first sensing unit 23 is provided on the first tooth and a second sensing unit 42 is provided on the second tooth. At the same time, two sensors are provided at corresponding positions on the base 10 to sense the position of the bevel gear.

[0117] When the guide wire needs to be removed, the first tooth and the second tooth rotate simultaneously (during this process, the guide wire will only rotate). When the sensor detects the first sensing part 23 (indicating that the opening of the first tooth is directly above), the rotating seat 20 is opened (after the rotating seat 20 is opened, the guide wire is not clamped by the rotating seat 20). Then, the second tooth rotates alone (during this process, because the rotating seat 20 is open, the guide wire has no clamping force, so no linear movement will occur) until the sensor detects the second sensing part 42, and then the guide wire can be removed.

[0118] To minimize the impact of the rotating seat 20 on the guide wire, the first and second teeth need to rotate by as little degree as possible. In actual operation, when the first and second teeth rotate, the sensor resets its position each time it detects the positioning point first sensing unit 23 and second sensing unit 42. Then the control unit records the rotation position of the first and second teeth.

[0119] When preparing to open the rotating seat 20, if the opening of the first tooth is on the right side, rotate it counterclockwise back to the center as shown in the figure. If the opening of the bevel gear is on the left side, rotate it clockwise back to the center as shown in the figure, thus ensuring the minimum rotation angle.

[0120] Although the rotation of the second tooth will no longer affect the guide wire after the rotating seat 20 is opened, the rotation of the second tooth is carried out in a similar manner to that of the first tooth in order to save rotation time.

[0121] Other configurations and operations of the feeding structure 100 for elongated objects according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0122] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0123] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A feeding structure for a slender object, characterized in that, include: Base (10); Rotary seat (20), the rotating seat (20) is rotatably disposed on the base (10), the rotating seat (20) has a rotating shaft, the rotating seat (20) is provided with a receiving space and an entrance (22), the entrance (22) is connected to the receiving space, and the entrance (22) is adapted to avoid slender objects (200); A drive assembly (30) is disposed within the receiving space and is used to connect the elongated object (200) to drive the elongated object (200) to move. A rotating component (40) is rotatably mounted on the base (10). The rotating component (40) rotates about the rotation axis and is connected to the drive assembly (30) to drive the drive assembly (30) to work. The rotating component (40) is provided with a clearance opening (41), which extends at least to the rotation axis. The clearance opening (41) is used to avoid the elongated object (200). The rotating seat (20) has a first sensing part (23), the rotating member (40) has a second sensing part (42), and the base (10) is provided with a detection member (11). The detection member (11) is used to detect the first sensing part (23) and the second sensing part (42) so as to issue a centering signal when the clearance opening (41) corresponds to the entrance / exit (22).

2. The feeding structure for an elongated object according to claim 1, characterized in that, There are multiple detection elements (11), which are spaced apart along the length of the rotating seat (20). At least some of the detection elements (11) correspond to the first sensing part (23), and the other part of the detection elements (11) correspond to the second sensing part (42).

3. The feeding structure for an elongated object according to claim 2, characterized in that, The base (10) includes: Base body (12); The first mounting part (13) is provided on the base body (12), and the rotating seat (20) is provided on the first mounting part (13); The second mounting part (14) is provided on the base body (12). The second mounting part (14) is spaced apart from the first mounting part (13). The detection element (11) is provided at the end of the second mounting part (14) away from the base body (12).

4. The feeding structure for an elongated object according to claim 2, characterized in that, The rotating seat (20) includes: The seat body (24) has the accommodating space located within it. Force-receiving part (25) is provided on the seat body (24) and is adapted to bear the force to drive the seat body (24) to rotate.

5. The feeding structure for an elongated object according to claim 4, characterized in that, The force-bearing part (25) is constructed as a first tooth, which is located at one end of the seat body (24). The rotating member (40) is provided with a second tooth, which is located on the side of the seat body (24) opposite to the first tooth. The first sensing part (23) is provided on the first tooth, and the second sensing part (42) is provided on the second tooth.

6. The feeding structure for an elongated object according to claim 5, characterized in that, It also includes a control unit and a first power module and a second power module. The power output gear of the first power module meshes with the first tooth and the power output gear of the second power module meshes with the second tooth. The control unit is electrically connected to the first power module, the second power module and a plurality of the detection units (11) respectively, so as to control the first power module and the second power module to stop working when the alignment signal is received. The control element is also used to determine the minimum rotation angle and direction of the first tooth and the second tooth from their respective current positions to the centering state, based on the rotation angle of the first tooth and the second tooth from the previous centering state to the current position.

7. The feeding structure for an elongated object according to claim 1, characterized in that, The drive assembly (30) includes at least two rollers (31), which are respectively disposed on opposite sides of the elongated object (200) and abut against the elongated object (200); wherein, At least a portion of the rollers (31) are connected to a transmission gear (32), and the rotating member (40) is provided with a first power tooth (43) that meshes with the transmission gear (32) to drive the elongated object (200) to move.

8. The feeding structure for an elongated object according to claim 7, characterized in that, There are at least four rollers (31), some of which are spaced apart along the length of the rotating seat (20). There are multiple transmission gears (32), which are connected to the rollers (31) respectively, and at least some of which are meshed along the length.

9. The feeding structure for an elongated object according to claim 8, characterized in that, The multiple transmission gears (32) include a first gear (321) and a second gear (322). The first gear (321) meshes with the first power gear (43). The second gear (322) is located on the side of the first gear (321) away from the first power gear (43). An auxiliary gear (323) is provided between the first gear (321) and the second gear (322).

10. The feeding structure for an elongated object according to claim 7, characterized in that, The rotating seat (20) is provided with a clearance hole, which communicates with the receiving space. A connecting shaft (27) passes through the clearance hole. One end of the connecting shaft (27) extends into the receiving space and is connected to the roller (31). The other end of the connecting shaft (27) extends out of the receiving space and is connected to the transmission gear (32).

11. The feeding structure for an elongated object according to claim 7, characterized in that, The rotating component (40) includes: A rotating body (44) rotates around the rotating shaft, and the first power tooth (43) is disposed on the axial end face of the rotating body (44); An edge portion (45) is provided on the outer periphery of the rotating body (44), and a second sensing portion (42) is provided on the outer wall surface of the edge portion (45); wherein, The clearance (41) is partially located on the rotating body (44), and the other part is located on the edge (45); The edge portion (45) is provided with a second power tooth (46), and in the axial direction, the first power tooth (43) and the second power tooth (46) are distributed on both sides of the rotating body (44).

12. The feeding structure for an elongated object according to claim 11, characterized in that, The first power tooth (43) has multiple teeth that are independently arranged and are configured as a conical body that extends outward in a straight line along the axial end plane of the rotating body (44). The gear formed by the first power tooth (43) is a planar tooth, and the gear formed by the second power tooth (46) is a conical tooth.

13. The feeding structure for an elongated object according to claim 12, characterized in that, The thickness of the edge portion (45) is greater than the thickness of the rotating body (44), and both ends of the edge portion (45) protrude from the two end faces of the rotating body (44) in the axial direction; the second power tooth (46) is disposed on the end face of the edge portion (45).

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