A vascular interventional catheter guidewire delivery device

Abstract

The present invention provides a vascular intervention catheter guidewire delivery device, which relates to the field of medical devices. It includes a shell, and rectangular grooves are symmetrically opened in the upper and lower inner walls of the shell, and a mounting frame is slidably connected in the rectangular groove; it also includes: a size adjustment component, the size adjustment component is arranged in the inner wall of the shell; an arc adjustment component, the arc adjustment component is arranged between the inner wall of the shell and the delivery wheel and the delivery ring, an adapter component, the adapter component is arranged between the mounting frame and the truss and between adjacent delivery wheels, a catheter delivery component, the catheter delivery component is arranged on the outside of the cross plate, and the catheter delivery component automatically pushes the catheter body. During use, the matching catheter can be automatically delivered after the guidewire is delivered, and when performing vascular intervention catheter treatment on patients with different blood vessel thicknesses, the delivery device can adapt to the delivery operation of guidewire catheters of different specifications.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and more particularly to a vascular intervention catheter guidewire delivery device. Background Art

[0002] In modern society, cardiovascular disease has become one of the leading causes of death worldwide, posing a serious threat to people's health. These diseases are often accompanied by vascular stenosis, blockage or other vascular lesions, requiring vascular interventional treatment to restore vascular patency and improve blood supply. Intravascular operations using catheter guidewire technology, such as stent placement, are relatively minimally invasive and effective treatment methods. Therefore, in order to effectively treat these vascular diseases, an accurate, safe and easy-to-operate vascular interventional catheter guidewire delivery device is particularly important. The catheter guidewire delivery mechanism is responsible for precisely controlling the delivery of the guidewire in the catheter, enabling the guidewire to enter the blood vessel before the catheter, and providing guidance and support for the advancement of the catheter.

[0003] For example, the Chinese patent publication number CN109157729B discloses a guidewire delivery device for vascular interventional surgery, in which the connecting rod moves along with the movement of the intermediate transmission member, driving the slider on the guidewire clamping device to move, and the slider moves forward along the straight section of the annular guide rail to drive the guidewire to move to complete the forward delivery action.

[0004] In addition, as disclosed in the Chinese patent with publication number CN115337108B, a guide wire delivery device for vascular intervention surgery has two pressure blocks that cooperate to clamp the guide wire A, simulating the human hand holding the guide wire A for delivery. As the driving gear continues to rotate, the sliding frame can be moved back to the initial position under the drive of the upper wire pressing and conveying mechanism and the lower wire pressing and conveying mechanism. The upper wire pressing and conveying mechanism and the lower wire pressing and conveying mechanism can also be moved back to the initial position. By repeating the above control operation, the delivery of the guide wire A can be realized, and the function of linear wire feeding can be realized.

[0005] However, during the actual use of the above technology, the guidewire is delivered by the delivery mechanism through the cooperation of the pressure block or the roller. During this period, the positions of the pressure block and the roller are fixed, and the specifications of the delivered guidewire catheter are single. Since the blood vessels of patients of different ages are of different thicknesses, it is necessary to select a guidewire catheter of appropriate specifications according to the actual situation, and then adaptively adjust the delivery mechanism. During vascular interventional catheter treatment, the guidewire accurately reaches the target position, providing precise path guidance for the entry of subsequent catheters, so that the catheter can be accurately placed to the lesion site along this determined path. After the guidewire is delivered, when the matching catheter kit is continued to be delivered, the state of the delivery component in the delivery device needs to be adjusted again. The existing method is that the doctor manually adjusts the direction and position of the catheter repeatedly. This process increases the waiting time and operation steps during the operation, slows down the overall surgical process, and when dealing with some acute vascular embolism, time is life, thereby increasing the risk to the patient and affecting the treatment effect. Summary of the Invention

[0006] In view of the problem in the prior art that after the guidewire is delivered and the matching catheter kit is continued to be delivered, the state of the delivery component in the delivery device needs to be adjusted again. The existing method is for the doctor to manually and repeatedly adjust the direction and position of the catheter. This process increases the waiting time and operation steps during the operation and slows down the overall surgical progress. The purpose of the present invention is to provide a vascular intervention catheter guidewire delivery device.

[0007] In order to solve the above problems, the present invention adopts the following technical solutions:

[0008] A vascular intervention catheter guidewire delivery device comprises a housing, wherein rectangular grooves are symmetrically formed in the upper and lower inner walls of the housing, and a mounting frame is slidably connected to the rectangular grooves, and a truss is slidably connected to the bottom of the mounting frame via a first spring, and delivery wheels are symmetrically rotatably connected to the left and right sides of the truss, and the delivery wheels are arranged in groups of two, and a delivery ring is fixedly mounted between each group of delivery wheels, and the delivery ring contacts the outer side of the guidewire body, and the outer side of the guidewire body is sleeved with a catheter body, and a first motor driving the delivery wheel is fixedly mounted on the outer side of the truss, a horizontal plate is fixed to the right outer side of the mounting frame, and an interference frame is slidably sleeved on the right side of the horizontal plate, and the interference frame clamps and positions the catheter body;

[0009] The device further comprises: a size adjustment component, the size adjustment component being disposed in the inner wall of the housing and adjusting the use position of the delivery mechanism according to the specific specifications of the guidewire body and the catheter body used;

[0010] An radian adjustment component is disposed on the inner wall of the housing and between the delivery wheel and the delivery ring, and the radian adjustment component adjusts the radian of the delivery ring according to the diameters of the guidewire body and the catheter body to be delivered, so as to maintain an effective contact delivery area;

[0011] An adapter assembly is disposed between the mounting frame and the truss and between adjacent delivery wheels, and the adapter assembly adjusts the use curvature of the delivery ring when the catheter body is automatically delivered after the guidewire body is delivered;

[0012] The catheter delivery component is arranged on the outside of the transverse plate, and the catheter delivery component automatically pushes the catheter body.

[0013] Optionally, the size adjustment assembly includes a second motor fixedly mounted on the upper inner wall of the shell, and the output end of the second motor is sleeved with an active bevel gear, and the outer side of the active bevel gear is meshedly connected with a double-sided gear ring, and the left and right sides of the double-sided gear ring are both set as conical structures, and the upper and lower ends of the right side of the double-sided gear ring are symmetrically meshed with driven bevel gears, and the active bevel gear, double-sided gear ring and driven bevel gear are all rotatably connected to the inside of the annular groove, and the annular groove is circumferentially opened in the inner wall of the shell.

[0014] Optionally, the driven bevel gear forms a synchronous rotation structure through a double-sided gear ring, and a screw is integrally fixedly installed in the middle of the driven bevel gear, and the screw bearing is connected to the rectangular groove, and the outer side of the screw is threadedly connected to a mounting frame, and the mounting frame drives the truss to move synchronously.

[0015] Optionally, the curvature adjustment assembly includes a first piston fixedly mounted on the outer side of the left portion of the mounting frame, and the top of the first piston is slidably connected to the inside of the first oil chamber, and the top of the first piston is set as a plane structure, the bottom of the first piston is set as a slat structure, and the first piston as a whole is set as an "L"-shaped structure, and the first oil chamber is symmetrically opened in the inner walls of the top and bottom of the shell.

[0016] Optionally, the truss at the bottom of the mounting frame is configured as an "H"-shaped structure when viewed from above, and the left and right sides of the truss are symmetrically connected to the bearings with ribs, and the front and rear sides of the outside of the ribs are symmetrically slidably connected to the delivery wheels, and the penetration point between the delivery wheels and the ribs is a prismatic structure, and a cylinder is integrally installed on the outer middle part of the ribs.

[0017] Optionally, a first sliding groove is opened at an equal angle on the outer side of the cylinder, and a first slider is symmetrically slidably connected in each first sliding groove, and a sleeve is hinged on the outer side of the first slider, and the end of the sleeve is slidably connected to a sliding rod, and a second slider is hinged on the outer side of the sliding rod, and the second slider is slidably connected to the second sliding groove, and the second sliding groove is opened at an equal angle on the inner end face of the delivery wheel.

[0018] Optionally, the sleeve and the slide rod are arranged in a group, and the sleeve and slide rod assembly as a whole is a "V"-shaped structure, and the sleeve is connected to the first oil chamber through a connecting pipe, and the delivery ring forms an arc adjustment structure through the sleeve, the slide rod and the delivery wheel, and the delivery ring is a metal sheet with elastic deformation ability.

[0019] Optionally, the adapter assembly includes a second piston fixed to the top of the truss, and the second piston is slidably connected to the second oil chamber, and the second oil chamber is opened on the inner side of the bottom of the mounting frame, and the second oil chamber is connected to the connecting tube through a connecting pipe, and the connecting tube is fixed to the inner middle part of the first slide groove, and the two sides of the connecting tube are symmetrically slidably connected with traction rods, and the outer end of the traction rod is fixedly connected to the side of the first slider.

[0020] Optionally, the catheter delivery assembly includes an electric push rod fixed on the inner wall of the shell, and a vertical plate is fixed to the end of the electric push rod, and the vertical plate is located in the middle of the horizontal plate, and the horizontal plate is arranged to be a "U"-shaped structure when viewed from above.

[0021] Optionally, the vertical plate pushes the abutment frame after being moved, and protrusions are symmetrically fixed on the front and rear sides of the top of the abutment frame, and the protrusions are slidably connected to the third slide groove through the second spring, and the third slide groove is opened on the front and rear inner walls of the middle part of the horizontal plate.

[0022] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:

[0023] In the above scheme, the size adjustment component is set up so that the active bevel gear rotates to drive the double-sided gear ring to operate, the double-sided gear ring drives the driven bevel gear to rotate synchronously, and the driven bevel gear drives the screw to rotate, thereby causing the threaded mounting frame to slide out, and the mounting frame drives the upper and lower trusses to move closer, and the delivery ring on the truss contacts the surface of the guide wire body. The first motor starts, and the delivery wheel and the delivery ring rotate, thereby enabling the delivery of guide wires of different sizes. At the same time, the outer horizontal plate of the mounting frame will also synchronously drive the contact frame to clamp and position the catheter body, thereby preventing the catheter body from moving around during the delivery of the guide wire body. The specifications of the guide wire body and the catheter body are compatible, thereby adapting to the delivery operations of guide wire bodies and catheter bodies of different specifications, thereby avoiding affecting the progress of the operation.

[0024] By setting up the curvature adjustment component, the guidewire catheter can be effectively delivered, and the stability of the contact delivery between the delivery component and the guidewire catheter can be maintained. The first piston slides inside the first oil chamber, squeezes the oil inside the first oil chamber and delivers it to the sleeve. After the slide rod extends out of the sleeve, it pushes the second slide block to move in the second slide groove on the side of the delivery wheel, thereby driving the front and rear delivery wheels to slide closer on the ribs. After the delivery wheels are closer, the curvature of the delivery ring changes, and the curvature of the delivery ring fits more closely to the outside of the guidewire body, making it more stable when delivering the guidewire body.

[0025] Through the set catheter delivery component, after the guidewire body is delivered to the designated position, the matching catheter body needs to be automatically delivered. Under the support and guidance of the guidewire, the catheter can enter the blood vessel more smoothly, reduce the probability of vascular damage, and improve the safety of the operation. At this time, the electric push rod pushes the vertical plate to move horizontally in the middle of the horizontal plate. After the vertical plate moves, it will push the contact frame to move. The protrusion on the upper part of the contact frame compresses the second spring and moves in the third sliding, so as to maintain the stability of the contact frame during movement. After the contact frame moves, it synchronously pushes the end of the clamped and positioned catheter body to the location of the delivery wheel. The catheter body will be squeezed between the upper and lower delivery rings, and the truss will be squeezed and slide. The truss will compress the first spring and slide on the mounting frame. The rotation of the delivery ring will automatically deliver the catheter body, thereby conveniently delivering the guidewire body and the catheter body.

[0026] Through the provided adapter assembly, the delivery component automatically adapts to the diameter change from the guide wire to the catheter and maintains the smoothness of delivery. When the catheter body is squeezed between the upper and lower delivery rings, the sliding of the truss will also drive the second piston to move synchronously in the second oil chamber. The oil in the second oil chamber will be squeezed out and transported to the interior of the connecting tube. The oil in the connecting tube increases and pushes the traction rods on both sides to slide out. After the traction rod slides, it drives the first slider to slide synchronously in the first slide groove, thereby changing the initial position of the first slider. After the initial position changes, the angle of the sleeve and the slide rod and the position of the second slider will be adjusted accordingly, so that the curvature of the delivery ring can better fit the outside of the catheter body, thereby ensuring stable delivery of the catheter body and reducing efficiency fluctuations caused by differences in manual operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0028] Figure 1 It is a schematic diagram of the overall front view structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the overall structure of the present invention from the left side in front view;

[0030] Figure 3 This is a schematic diagram of the overall structure of the present invention from the right side in front view;

[0031] Figure 4 This is a schematic diagram of the internal structure of the housing of the present invention;

[0032] Figure 5 This is a schematic diagram of the front cross-section structure of the connection between the mounting frame and the truss of the present invention;

[0033] Figure 6 Schematic diagram of the internal structure of the delivery wheel and delivery ring of the present invention;

[0034] Figure 7 This is a schematic diagram of the front view structure of the inner wall of the delivery wheel of the present invention;

[0035] Figure 8 This is a schematic structural diagram of the curvature adjustment assembly of the present invention;

[0036] Figure 9 This is a schematic diagram of the overall structure of the catheter delivery assembly of the present invention;

[0037] Figure 10 Schematic diagram of the exploded structure of the catheter delivery assembly of the present invention.

[0038] [Reference Signs]

[0039] 1. Housing; 2. Rectangular groove; 3. Mounting frame; 4. First spring; 5. Truss; 6. Delivery wheel; 7. Delivery ring; 8. Annular groove; 9. Second motor; 10. Horizontal plate; 11. Interference frame; 12. Guidewire body; 13. Catheter body;

[0040] 14. Size adjustment assembly; 141. Second motor; 142. Active bevel gear; 143. Double-sided gear ring; 144. Driven bevel gear; 145. Screw;

[0041] 15. Arc adjustment assembly; 151. First piston; 152. First oil chamber; 153. Ridge; 154. Cylinder; 155. First chute; 156. First slider; 157. Sleeve; 158. Slide rod; 159. Second slider; 1510. Second chute;

[0042] 16. Adapter assembly; 161. Second piston; 162. Second oil chamber; 163. Connecting cylinder; 164. Drawbar;

[0043] 17. Catheter delivery assembly; 171. Electric push rod; 172. Vertical plate; 173. Bump; 174. Third slide groove; 175. Second spring.

[0044] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0045] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. It is also noted that, to provide a more detailed description, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative methods for implementing certain known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0046] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it would be within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0047] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0048] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0049] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0050] like Figures 1 to 10 As shown, an embodiment of the present invention provides a vascular interventional catheter guidewire delivery device, comprising a shell 1 of a cylindrical structure, and rectangular grooves 2 are symmetrically opened in the upper and lower inner walls of the shell 1, and a mounting frame 3 is slidably connected to the rectangular groove 2, and the bottom of the mounting frame 3 is slidably connected to a truss 5 through a first spring 4, and the left and right sides of the truss 5 are symmetrically rotatably connected to delivery wheels 6, and the delivery wheels 6 are in a group of two, and a delivery ring 7 is fixedly installed between each group of delivery wheels 6, and the delivery ring 7 is in contact with the outer side of the guidewire body 12, and the outer side of the guidewire body 12 is provided with a catheter body 13, and at the same time, a first motor 9 for driving the delivery wheel 6 is fixedly installed on the outer side of the truss 5, a horizontal plate 10 is fixed to the right outside of the mounting frame 3, and a contact frame 11 is slidably provided on the right side of the horizontal plate 10, and the contact frame 11 clamps and positions the catheter body 13.

[0051] First, the basic operation of the delivery device is introduced. During operation, the guidewire body 12 and the catheter body 13 are both inserted into the interior of the shell 1, and then the mounting frame 3 in the rectangular groove 2 is adjusted by the size adjustment component 14. The mounting frames 3 on the upper and lower sides are brought closer to each other, driving the trusses 5 and the delivery wheel 6 on the upper and lower sides to approach each other, and the delivery ring 7 on the delivery wheel 6 will change the curvature under the cooperation of the curvature adjustment component 15, so that its surface can better fit and contact the outside of the guidewire body 12, thereby maintaining the stability of delivery. After the first motor 9 on the truss 5 is started, the delivery wheel 6 and the delivery ring 7 rotate synchronously, thereby delivering the guidewire body 12 into the blood vessel, and after the mounting frames 3 on the upper and lower sides are brought closer to each other, they will also drive the interference frame 11 on the cross plate 10 to clamp and position the catheter body 13, thereby preventing the catheter body from being moved during the delivery of the guidewire body 12. The body 13 moves, which is not conducive to the progress of treatment. When the guidewire body 12 reaches the specified position, the resistance frame 11 is automatically delivered first by the catheter delivery component 17. When the catheter body 13 is delivered between the delivery rings 7, the trusses 5 on the upper and lower sides are pushed to move, and then the catheter body 13 is resisted and pushed. The adapter component 16 will adaptively adjust the delivery ring 7 so that its surface curvature adapts to the external curvature of the catheter body 13. The automatic delivery mechanism can provide a stable pushing force to ensure that the catheter advances along the guidewire at a uniform speed and strength. After the guidewire body 12 is delivered into place, the catheter is automatically delivered. There is no need for the doctor to manually adjust the direction and position of the catheter repeatedly, and it is not affected by factors such as doctor's hand fatigue and shaking, making the catheter delivery process more stable. At the same time, it also reduces the waiting time and operation steps during the operation, and speeds up the overall surgical process.

[0052] Example 1:

[0053] like Figures 2 to 6 As shown, in order to solve the problem that the position of the delivery component of the existing guidewire catheter delivery device is relatively fixed during use and is not convenient to adjust according to actual needs, the following technical solution is proposed:

[0054] The size adjustment component 14 is arranged in the inner wall of the shell 1, and the size adjustment component 14 adjusts the use position of the delivery mechanism according to the specific specifications of the guide wire body 12 and the catheter body 13 used. The size adjustment component 14 includes a second motor 141 fixedly installed in the upper inner wall of the shell 1, and the output end of the second motor 141 is sleeved with an active bevel gear 142, and the outer side of the active bevel gear 142 is meshed and connected with a double-sided gear ring 143, and the left and right sides of the double-sided gear ring 143 are both set to a conical structure, and the upper and lower right sides of the double-sided gear ring 143 are The driven bevel gear 144 is symmetrically meshed with each other at the ends, and the active bevel gear 142, the double-sided gear ring 143 and the driven bevel gear 144 are all rotatably connected to the inside of the annular groove 8, and the annular groove 8 is circumferentially opened in the inner wall of the shell 1, and the driven bevel gear 144 forms a synchronous rotation structure through the double-sided gear ring 143, and the middle part of the driven bevel gear 144 is integrally fixed with a screw 145, and the screw 145 bearing is connected to the rectangular groove 2, and the outer side of the screw 145 is threadedly connected to the mounting frame 3, and the mounting frame 3 drives the truss 5 to move synchronously.

[0055] When in use, the second motor 141 is started, the active bevel gear 142 rotates to drive the double-sided gear ring 143 to run in the annular groove 8, and the double-sided gear ring 143 rotates to drive the driven bevel gear 144 on the upper and lower parts of the right side to rotate synchronously. After the driven bevel gear 144 rotates, it drives the fixedly connected screw 145 to rotate in the rectangular groove 2, thereby causing the threaded mounting frame 3 to slide out. After the mounting frame 3 slides out, it drives the upper and lower trusses 5 to move closer, and the delivery ring 7 on the truss 5 will contact the surface of the guide wire body 12. The first motor 9 is started, and the delivery wheel 6 and the delivery ring 7 rotate, thereby enabling the delivery operation of guide wire bodies 12 of different sizes. At the same time, the outer horizontal plate 10 of the mounting frame 3 will also synchronously drive the contact frame 11 to clamp and position the catheter body 13, thereby preventing the catheter body 13 from moving around during the delivery of the guide wire body 12. The specifications of the guide wire body 12 and the catheter body 13 are compatible, thereby adapting to the delivery operation of guide wire bodies 12 and catheter bodies 13 of different specifications, thereby avoiding affecting the progress of the operation.

[0056] Example 2:

[0057] like Figures 2 to 8 As shown, in order to effectively deliver the guidewire catheter during use and maintain the stability of the contact delivery between the delivery component and the guidewire catheter, the following technical solutions are proposed:

[0058] The curvature adjustment component 15 is arranged on the inner wall of the housing 1 and between the delivery wheel 6 and the delivery ring 7, and the curvature adjustment component 15 adjusts the curvature of the delivery ring 7 according to the diameter of the guide wire body 12 and the catheter body 13 to be delivered, so as to maintain an effective contact delivery area. The curvature adjustment component 15 includes a first piston 151 fixedly mounted on the outer side of the left portion of the mounting frame 3, and the top of the first piston 151 is slidably connected to the inside of the first oil chamber 152, and the top of the first piston 151 is set to a flat structure, the first piston 15 1 is configured as a slat structure, and the first piston 151 is configured as an "L"-shaped structure as a whole, and the first oil chamber 152 is symmetrically opened in the inner wall of the top and bottom of the shell 1, and the truss 5 at the bottom of the mounting frame 3 is configured as an "H"-shaped structure when viewed from above, and the left and right sides of the truss 5 are symmetrically connected to the bearings with ribs 153, and the front and rear sides of the outside of the ribs 153 are symmetrically slidably connected to the delivery wheel 6, and the penetration point between the delivery wheel 6 and the ribs 153 is a prismatic structure, and the middle outer side of the ribs 153 is integrally installed with a cylinder 154.

[0059] During use, when the mounting bracket 3 adjusts its position, it will synchronously drive the first piston 151 to slide inside the first oil chamber 152, squeezing the oil inside the first oil chamber 152 into the sleeve 157, so that the slide rod 158 extends out of the sleeve 157, and the first slider 156 in the first slide groove 155 does not move, and the sleeve 157 hinged on the first slider 156 can rotate around the hinge point.

[0060] like Figures 5 to 8 As shown, a first slide groove 155 is opened at an equal angle on the outer side of the cylinder 154, and a first slider 156 is symmetrically slidably connected in each first slide groove 155, and a sleeve 157 is hinged on the outer side of the first slider 156, and the end of the sleeve 157 is slidably connected to a slide rod 158, and a second slider 159 is hinged on the outer side of the slide rod 158, and the second slider 159 is slidably connected to the second slide groove 1510, and the second slide groove 1510 is opened at an equal angle on the inner end face of the delivery wheel 6, the sleeve 157 and the slide rod 158 are arranged in a group, and the sleeve 157 and the slide rod 158 assembly are in a "V" shape as a whole, and the sleeve 157 is connected to the first oil chamber 152 through a connecting pipe, and the delivery ring 7 forms an arc adjustment structure through the sleeve 157, the slide rod 158 and the delivery wheel 6, and the delivery ring 7 is a metal sheet with elastic deformation ability.

[0061] During use, the slide rod 158 extends out of the sleeve 157 and pushes the second slide block 159 to move in the second slide groove 1510 on the side of the delivery wheel 6, thereby driving the front and rear delivery wheels 6 to slide closer on the rib 153. After the delivery wheels 6 move closer, the curvature of the delivery ring 7 changes, and the curvature of the delivery ring 7 fits more closely to the outside of the guide wire body 12, making it more stable when delivering the guide wire body 12.

[0062] Example 3: In order to automatically deliver the catheter after the guidewire is in place, the following solution is proposed. Figures 2 to 4 and Figures 9 and 10 shown.

[0063] The catheter delivery assembly 17 is arranged on the outside of the horizontal plate 10, and the catheter delivery assembly 17 automatically pushes the catheter body 13. The catheter delivery assembly 17 includes an electric push rod 171 fixed on the inner wall of the shell 1, and a vertical plate 172 is fixed at the end of the electric push rod 171, and the vertical plate 172 is located in the middle of the horizontal plate 10, and the horizontal plate 10 is arranged to be a "U"-shaped structure when viewed from above. After the vertical plate 172 moves, it pushes the contact frame 11, and the front and rear sides of the top of the contact frame 11 are symmetrically fixed with protrusions 173, and the protrusions 173 are slidably connected to the third slide groove 174 through the second spring 175, and the third slide groove 174 is opened on the front and rear inner walls of the middle part of the horizontal plate 10.

[0064] During use, after the guidewire body 12 is delivered to the designated position, the matching catheter body 13 needs to be automatically delivered. Under the support and guidance of the guidewire, the catheter can enter the blood vessel more smoothly, reduce the probability of vascular damage, and improve the safety of the operation. At this time, the electric push rod 171 pushes the vertical plate 172 to move horizontally in the middle of the horizontal plate 10. After the vertical plate 172 moves, it will push the contact frame 11 to move. The protrusion 173 on the upper part of the contact frame 11 compresses the second spring 175 and moves in the third slide groove 174, so as to maintain the stability of the contact frame 11 during movement. After the contact frame 11 moves, it synchronously pushes the end of the clamped and positioned catheter body 13 to move to the location of the delivery wheel 6. The catheter body 13 will be squeezed between the upper and lower delivery rings 7, and the truss 5 will be squeezed and slide. The truss 5 will compress the first spring 4 and slide on the mounting frame 3. The rotation of the delivery ring 7 will automatically deliver the catheter body 13, thereby conveniently delivering the guidewire body 12 and the catheter body 13.

[0065] Example 4:

[0066] like Figures 4 to 6 and Figure 8 As shown, in order to automatically deliver the catheter after the guidewire is delivered, so that the delivery component automatically adapts to the diameter change from the guidewire to the catheter and maintains the smoothness of delivery, the following technical solutions are proposed:

[0067] The adapter assembly 16 is arranged between the mounting frame 3 and the truss 5 and between the adjacent delivery wheels 6, and the adapter assembly 16 adjusts the use arc of the delivery ring 7 when automatically delivering the catheter body 13 after the guide wire body 12 is delivered. The adapter assembly 16 includes a second piston 161 fixed to the top of the truss 5, and the second piston 161 is slidably connected to the second oil chamber 162, and the second oil chamber 162 is opened on the inner side of the bottom of the mounting frame 3, and the second oil chamber 162 is connected to the connecting tube 163 through a connecting pipe. At the same time, the connecting tube 163 is fixed to the inner middle part of the first slide groove 155, and the two sides of the connecting tube 163 are symmetrically slidably connected with the traction rod 164, and the outer end of the traction rod 164 is fixedly connected to the side of the first slider 156.

[0068] During use, when the catheter body 13 is squeezed into between the upper and lower delivery rings 7, the sliding of the truss 5 will also drive the second piston 161 to move synchronously in the second oil chamber 162, and the oil in the second oil chamber 162 will be squeezed out and transported to the interior of the connecting tube 163. The oil in the connecting tube 163 increases and pushes the traction rods 164 on both sides to slide out. After the traction rod 164 slides, it drives the first slider 156 to slide synchronously in the first slide groove 155, thereby changing the initial position of the first slider 156. After the initial position changes, the angles of the sleeve 157 and the slide rod 158 and the position of the second slider 159 will be adjusted accordingly, so that the curvature of the delivery ring 7 can better fit the outside of the catheter body 13, thereby ensuring stable delivery of the catheter body 13 and reducing efficiency fluctuations caused by differences in manual operations.

[0069] The working process of the technical solution provided by the present invention is as follows:

[0070] First, the delivery components are adjusted according to the specific specifications of the guidewire body 12 and the catheter body 13 actually used. After the size adjustment component 14 is adjusted, the mounting frames 3 on the upper and lower sides move closer to each other, driving the trusses 5 and the delivery wheels 6 on the upper and lower sides to move closer. The delivery ring 7 on the delivery wheel 6 will change its curvature with the cooperation of the curvature adjustment component 15, so that its surface can better fit and contact the outside of the guidewire body 12, thereby maintaining the stability of delivery.

[0071] Secondly, when the mounting frames 3 are brought close to each other, they will also drive the abutment frame 11 on the horizontal plate 10 to clamp and position the catheter body 13, thereby preventing the catheter body 13 from moving during the delivery of the guidewire body 12, which is not conducive to the treatment work, so that the delivery device can adapt to the delivery of guidewire bodies 12 and catheter bodies 13 of different specifications.

[0072] Again, after the guidewire body 12 reaches the specified position, the resistance frame 11 is automatically delivered forward by the catheter delivery component 17. When the catheter body 13 is delivered between the delivery rings 7, it pushes the trusses 5 on the upper and lower sides to move, and then pushes the catheter body 13 against the resistance. The adapter component 16 will adaptively adjust the delivery ring 7 so that its surface curvature adapts to the external curvature of the catheter body 13.

[0073] Finally, the automatic delivery mechanism can provide a stable pushing force to ensure that the catheter advances along the guide wire at a uniform speed and force, so that after the guide wire body 12 is delivered into place, the catheter is automatically delivered. There is no need for the doctor to manually adjust the direction and position of the catheter repeatedly, and it is not affected by factors such as the doctor's hand fatigue and shaking, making the catheter delivery process more stable.

[0074] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0075] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A vascular intervention catheter guidewire delivery device, comprising a housing, wherein rectangular grooves are symmetrically formed in the upper and lower inner walls of the housing, and a mounting frame is slidably connected to the rectangular grooves, and a truss is slidably connected to the bottom of the mounting frame via a first spring, and the left and right sides of the truss are symmetrically rotatably connected to delivery wheels, and the delivery wheels are grouped in two, and a delivery ring is fixedly installed between each group of delivery wheels, and the delivery ring contacts the outer side of the guidewire body, and the outer side of the guidewire body is sleeved with a catheter body, and a first motor that drives the delivery wheel is fixedly installed on the outer side of the truss, a horizontal plate is fixed to the right side of the mounting frame, and the right side of the horizontal plate is slidably sleeved with an interference frame, and the interference frame clamps and positions the catheter body; It is characterized in that Also includes: A size adjustment assembly is disposed in the inner wall of the housing and adjusts the use positions of the mounting frame, truss, and delivery wheel according to the specific specifications of the guidewire body and catheter body used; An arc adjustment assembly is provided on the inner wall of the housing and between the delivery wheel and the delivery ring, and the arc adjustment assembly adjusts the arc of the delivery ring according to the diameters of the guidewire body and the catheter body to be delivered, so as to maintain an effective contact delivery area. The arc adjustment assembly includes a first piston fixedly mounted on the left outer side of the mounting frame, and the top of the first piston is slidably connected to the interior of the first oil chamber, and the top of the first piston is configured as a flat structure, the bottom of the first piston is configured as a slat structure, and the first piston as a whole is configured as an "L"-shaped structure. At the same time, the first oil chamber is symmetrically opened in the inner walls of the top and bottom of the housing; An adapter assembly is disposed between the mounting frame and the truss and between adjacent delivery wheels, and the adapter assembly adjusts the use curvature of the delivery ring when the catheter body is automatically delivered after the guidewire body is delivered; The catheter delivery component is arranged on the outside of the transverse plate, and the catheter delivery component automatically pushes the catheter body.

2. The vascular intervention catheter guidewire delivery device according to claim 1, characterized in that: The size adjustment assembly includes a second motor fixedly installed in the upper inner wall of the shell, and the output end of the second motor is sleeved with a driving bevel gear, and the outer side of the driving bevel gear is meshed and connected with a double-sided gear ring, and the left and right sides of the double-sided gear ring are both set as conical structures, and the upper and lower ends of the right side of the double-sided gear ring are symmetrically meshed and connected with driven bevel gears, and the driving bevel gear, the double-sided gear ring and the driven bevel gear are all rotatably connected to the inside of the annular groove, and the annular groove is circumferentially opened in the inner wall of the shell.

3. The vascular intervention catheter guidewire delivery device according to claim 2, characterized in that: The driven bevel gear forms a synchronous rotation structure through a double-sided gear ring, and a screw is fixedly installed in the middle of the driven bevel gear in an integrated manner, and the screw bearing is connected to the rectangular groove, and the outer side of the screw is threadedly connected to a mounting frame, and the mounting frame drives the truss to move synchronously.

4. The vascular intervention catheter guidewire delivery device according to claim 1, characterized in that: The truss at the bottom of the mounting frame is arranged as an "H"-shaped structure when viewed from above, and the left and right sides of the truss are symmetrically connected to the bearings with ribs, and the front and rear sides of the outside of the ribs are symmetrically slidably connected to the delivery wheels, and the penetration point between the delivery wheels and the ribs is a prismatic structure, and a cylinder is integrally installed on the outer side of the middle of the ribs.

5. The vascular intervention catheter guidewire delivery device according to claim 4, characterized in that: The outer side of the cylinder is provided with a first sliding groove at equal angles, and a first slider is symmetrically slidably connected in each first sliding groove, and a sleeve is hinged on the outer side of the first slider, the end of the sleeve is slidably connected to a sliding rod, and a second slider is hinged on the outer side of the sliding rod, and the second slider is slidably connected to the second sliding groove, and the second sliding groove is provided at equal angles on the inner end face of the delivery wheel.

6. The vascular intervention catheter guidewire delivery device according to claim 5, characterized in that: The sleeve and the slide rod are arranged in a group, and the sleeve and slide rod assembly as a whole presents a "V"-shaped structure, and the sleeve is connected to the first oil chamber through a connecting pipe, and the delivery ring forms an arc adjustment structure through the sleeve, the slide rod and the delivery wheel, and the delivery ring is a metal sheet with elastic deformation ability.

7. The vascular intervention catheter guidewire delivery device according to claim 5, characterized in that: The adapter assembly includes a second piston fixed to the top of the truss, and the second piston is slidably connected to the second oil chamber, and the second oil chamber is opened on the inner side of the bottom of the mounting frame, and the second oil chamber is connected to the connecting tube through a connecting pipe. At the same time, the connecting tube is fixed to the inner middle part of the first slide groove, and the two sides of the connecting tube are symmetrically slidably connected with the traction rod, and the outer end of the traction rod is fixedly connected to the side of the first slider.

8. The vascular intervention catheter guidewire delivery device according to claim 1, characterized in that: The catheter delivery assembly includes an electric push rod fixed on the inner wall of the shell, and a vertical plate is fixed to the end of the electric push rod. The vertical plate is located in the middle of the horizontal plate, and the horizontal plate is arranged to be a "U"-shaped structure when viewed from above.

9. The vascular intervention catheter guidewire delivery device according to claim 8, characterized in that: After the vertical plate moves, it pushes the abutment frame, and protrusions are symmetrically fixed on the front and rear sides of the top of the abutment frame. The protrusions are slidably connected to the third sliding groove through the second spring, and the third sliding groove is opened on the front and rear inner walls of the middle part of the horizontal plate.

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