A guide for securing a catheter sheath and a catheter

Abstract

This invention provides a guiding device for fixing a catheter sheath and catheter, comprising: a base component, a clamping assembly, a telescopic tube assembly, and a hemostatic component. A visual through-hole is provided at the center of the base component, and a semi-circular through-hole is provided at the bottom of the side wall of the base component. The visual through-hole is used to observe the puncture point location during the operation and the postoperative compression hemostasis status, and the semi-circular through-hole is used to pass through and fix the catheter sheath. The clamping assembly is installed on the outer side wall of the base component, and is used to fix the catheter sheath and guide and fix the catheter. The telescopic tube assembly is connected to the clamping assembly and is used to guide and fix the catheter. The hemostatic component is disposed on the base component and is used to apply pressure to stop bleeding at the bleeding point. This invention, by using the clamping assembly and telescopic tube assembly to fix the catheter sheath and catheter, and providing a visual through-hole to display the puncture point location and hemostasis status, improves the accuracy of puncture and the efficiency of hemostasis, thereby enhancing surgical safety.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a guide device for fixing a catheter sheath and a catheter. Background Technology

[0002] Catheter sheaths play a crucial role in medical procedures, particularly in minimally invasive interventional procedures. Their primary function is to establish pathways to body cavities, allowing surgical instruments to enter and complete the procedure. In minimally invasive interventional procedures, catheters are inserted through the catheter sheath into blood vessels, reaching the vicinity of the surgical site to establish a pathway for the interventional treatment.

[0003] During interventional procedures, the catheter may experience slight backward displacement, requiring the surgeon to control the catheter's distal end to push it further into the body. Because the catheter is made of a soft material, direct pushing can cause the external portion of the catheter to bend, affecting its effectiveness in pushing the catheter inward and thus impacting the efficiency and safety of the procedure. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a guiding device for fixing a catheter sheath and a catheter. This device uses a clamping assembly and a telescopic tube assembly to fix and guide the catheter sheath and catheter. It also includes a telescopic tube assembly to fix and guide the catheter, preventing it from bending. Furthermore, it provides a visual through-hole to facilitate observation of the puncture point location and hemostasis status, thereby improving the accuracy of puncture and the efficiency of hemostasis, and enhancing surgical safety.

[0005] To achieve the above objectives, according to one aspect of the present invention, a guiding device for fixing a catheter sheath and a catheter is provided, comprising: a base component, a clamping assembly, a telescopic tube assembly, and a hemostatic component;

[0006] A visual through hole is provided at the center of the base component, and a semi-circular through hole is provided at the bottom of the side wall of the base component. The visual through hole is used to observe the position of the puncture point during the operation and the pressure hemostasis status after the operation. The semi-circular through hole is used to pass through and fix the catheter sheath.

[0007] The clamping assembly is mounted on the outer side wall of the base component. The clamping assembly is used to fix the catheter sheath and guide and fix the catheter.

[0008] The telescopic tube assembly is connected to the clamp assembly, and the telescopic tube assembly is used to guide and fix the conduit.

[0009] The hemostatic component is disposed on the base component and is used to apply pressure to stop bleeding at the bleeding point.

[0010] Optionally, the outer side wall of the base component is symmetrically provided with snap holes along the diametrical direction, and each snap hole has an outwardly expanding snap groove at its edge.

[0011] Optionally, the clip assembly is Y-shaped, with one end of the clip assembly having a forked structure. Each end of the forked structure has a cylindrical buckle on its inner side, and the other end of the clip assembly has a hollow cylindrical structure. The clip assembly is installed on the base component by sliding into the buckle hole along the buckle groove through the cylindrical buckle. The hollow cylindrical structure of the clip assembly is used to fix the catheter sheath.

[0012] Optionally, the telescopic tube assembly includes a first telescopic tube assembly;

[0013] Optionally, the first telescopic tube assembly is connected to the hollow cylindrical structure of the clamp assembly. The first telescopic tube assembly includes multiple sections of hollow cylindrical tubes with gradually changing diameters, which are connected end to end. A limiting key is provided on the inner wall of the tail end of each hollow cylindrical tube to prevent the hollow cylindrical tube from slipping during telescopic movement. A first limiting piece is also provided at the tail end of the hollow cylindrical tube. The first limiting piece has a first circular opening to support and hold the guide tube. The guide tube passes through the first circular opening and enters the hollow cylindrical structure of the clamp assembly and the first telescopic tube assembly.

[0014] Optionally, the first telescopic tube assembly further includes a hollow composite tube, which is fixed inside the hollow cylindrical structure of the clamp assembly. A portion of the hollow composite tube is located inside the first section of the hollow cylindrical tube connected to the hollow cylindrical structure of the clamp assembly. The hollow composite tube is used to support the multiple sections of hollow cylindrical tube and also to support and hold the conduit.

[0015] Optionally, a first slot is provided on the side wall of the hollow cylindrical structure of the clip assembly.

[0016] Optionally, the telescopic assembly further includes a second telescopic tube assembly;

[0017] Optionally, the second telescopic tube assembly includes multiple slotted hollow cylindrical tubes with gradually changing diameters. The second telescopic tube assembly is connected to the hollow cylindrical structure of the clamp assembly. The multiple slotted hollow cylindrical tubes are connected end to end, and a second slot is provided on the side wall of each slotted hollow cylindrical tube.

[0018] Optionally, a second limiting key is provided on the inner wall of the tail end of each slotted hollow cylindrical tube. The second limiting key is used to prevent the slotted hollow cylindrical tube from slipping during the extension and retraction process. A second limiting piece is provided at the tail end of each slotted hollow cylindrical tube. The second limiting piece is provided with a second circular opening. The second slot on each slotted hollow cylindrical tube communicates with the second circular opening on the second limiting piece. The conduit is embedded in the hollow cylindrical structure of the clamping assembly, the second circular opening, and the second telescopic tube assembly through the first slot and the second slot.

[0019] Optionally, the hemostatic assembly includes a first hemostatic assembly;

[0020] Optionally, the first hemostatic component includes a detachable knob, which includes a rotating part and a pressing part. The pressing part is located below the rotating part and is separate from the rotating part. An external thread is provided on the outer side wall of the rotating part, and an internal thread is provided on the inner side wall of the visible through hole of the base component. The detachable knob moves downward linearly by engaging the external thread of the rotating part and the internal thread on the inner wall of the visible through hole to push the pressing part for compression hemostasis.

[0021] Optionally, the bottom surface of the compression part is set as an arc surface, the bottom surface of the compression part is provided with a soft material, and the soft material is covered with a composite hemostatic drug coating.

[0022] Optionally, the hemostatic assembly further includes a second hemostatic assembly;

[0023] The second hemostatic assembly includes an air bladder, an air bladder tube, and a Luer connector. The air bladder is located at the bottom of the visible opening. One end of the air bladder tube is connected to the air bladder, and the other end of the air bladder tube is connected to one end of the Luer connector. The other end of the Luer connector is connected to a gas injection device. The Luer connector and the air bladder tube are used to introduce gas into the air bladder, and the air bladder is used to inflate and press to stop bleeding.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The above technical solution involves setting a visual through-hole on the base component to visually and intuitively display the location of the puncture point during the operation and the status of compression hemostasis after the operation, thereby improving the accuracy of puncture and the efficiency and accuracy of hemostasis, and improving the safety of the operation. The clamping assembly is used to fix the catheter sheath and guide and fix the catheter, while the telescopic tube assembly is used to guide and fix the catheter to prevent the catheter from bending, thereby improving the safety of the operation.

[0026] The embodiments of this disclosure feature a transparent, detachable knob, which allows for intraoperative observation of the puncture point location through a visual aperture and postoperative observation of the compression hemostasis status. Furthermore, the rotating and compressive parts of the detachable knob are separated to prevent rotational damage to the puncture point caused by the compressive part. The structure is simple, the operation is convenient, and the safety of the surgery is improved.

[0027] The embodiments disclosed herein include an airbag, an airbag tube, and a Luer connector. The airbag is inflated through the airbag tube and the Luer connector to apply pressure for hemostasis. The structure is simple, the operation is convenient, and the safety of the surgery is improved. Attached Figure Description

[0028] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0029] Figure 1 This is a schematic diagram of the overall structure of a guide device for fixing a catheter sheath and a catheter, provided by an exemplary embodiment of the present invention.

[0030] Figure 2 This is a schematic diagram of the structure of a base component and a wrist fixing component provided in an exemplary embodiment of the present invention.

[0031] Figure 3 This is a schematic diagram of the structure of a clip assembly provided in an exemplary embodiment of the present invention.

[0032] Figure 4 This is a perspective view of the connection structure between a clip assembly and a first telescopic tube assembly provided in an exemplary embodiment of this utility model.

[0033] Figure 5 This is a schematic diagram of the connection structure between a clip assembly and a first telescopic tube assembly provided in an exemplary embodiment of this utility model.

[0034] Figure 6 This is a schematic diagram showing the connection of a base component, a clip assembly, and a second telescopic tube assembly provided in an exemplary embodiment of this utility model.

[0035] Figure 7 This is a schematic diagram of the connection structure between a clip assembly and a second telescopic tube assembly provided in an exemplary embodiment of the present invention.

[0036] Figure 8 This is a schematic diagram of the connection structure of a base component, a wrist fixing component, and a detachable knob provided in an exemplary embodiment of this utility model.

[0037] Figure 9 This is a schematic diagram of the separation structure of a base component, a wrist fixing component, and a detachable knob provided in an exemplary embodiment of the present invention.

[0038] Figure 10 This is a cross-sectional view showing the connection of a base component, a wrist fixing component, and a detachable knob, provided in an exemplary embodiment of this utility model.

[0039] Figure 11 This is a schematic diagram of the connection structure of a base component, a wrist fixing component, and a second hemostatic component provided in an exemplary embodiment of this utility model.

[0040] Figure 12 This is a cross-sectional view showing the connection of a base component, a wrist fixing component, and a second hemostatic component provided in an exemplary embodiment of this utility model.

[0041] Explanation of reference numerals in the attached figures

[0042] 100 Guiding device for securing catheter sheaths and catheters

[0043] 110 Base Components

[0044] 111 Visible Through Hole

[0045] 112 Semi-circular through hole

[0046] 113 Buckle Hole

[0047] 114 Clip-on sliding groove

[0048] 120 Card Holder Assembly

[0049] 121 branching structure

[0050] 1211 Buckle

[0051] 122 Hollow cylindrical structure

[0052] 1221 First slot

[0053] 130 First telescopic tube assembly

[0054] 131 Hollow Cylindrical Tube

[0055] 132 Limit Keys

[0056] 133 First Limiting Piece

[0057] 134 First circular opening

[0058] 135 Hollow Composite Tube

[0059] 140 Second telescopic tube assembly

[0060] 141 Grooved hollow cylindrical tube

[0061] 142 Second slot

[0062] 143 Second limiting plate

[0063] 144 Second circular opening

[0064] 150 Detachable knob

[0065] 151 Rotating part

[0066] 152 Compression Section

[0067] 160 Second hemostatic component

[0068] 161 airbags

[0069] 162 airbag tube

[0070] 163 Ruhr connector

[0071] 170 Wrist fixation components. Detailed Implementation

[0072] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0073] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship 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.

[0074] Figure 1 This is a schematic diagram of the overall structure of a guide device for fixing a catheter sheath and a catheter, provided by an exemplary embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of a base component and a wrist fixing component provided in an exemplary embodiment of the present invention.

[0075] like Figure 1 As shown, this utility model provides a guide device 100 for fixing a catheter sheath and a catheter, including a base component 110, a clamping assembly 120, a telescopic tube assembly, and a hemostatic assembly.

[0076] A visual through hole 111 is provided at the center of the base component 110, and a semi-circular through hole 112 is provided at the bottom of the side wall of the base component 110. The visual through hole 111 is used to observe the puncture point position during the operation and the compression hemostasis status after the operation, and the semi-circular through hole 112 is used to pass through and fix the catheter sheath.

[0077] The base component 110 has a hollow ring structure and a circular visible hole 111. The visible hole 111 on the base component 110 forms a columnar visible channel with the base component 110, allowing medical staff to observe the location of the puncture point during the operation and the status of compression hemostasis after the operation through the visible channel.

[0078] The diameter of the semi-circular through hole 112 can be larger than the diameter of the catheter sheath, which facilitates the passage of the catheter sheath and presses the catheter sheath against the bottom of the base component 110 to prevent compression of the artery and ensure the safety of the operation.

[0079] The clamp assembly 120 is mounted on the outer wall of the base component 110. The clamp assembly 120 is used to fix the catheter sheath and guide and fix the catheter.

[0080] The clip assembly 120 is a detachable structure.

[0081] The telescopic tube assembly is connected to the clamp assembly 120, and the telescopic tube assembly is used to guide and fix the conduit.

[0082] The hemostasis component is mounted on the base component 110 and is used to apply pressure to stop bleeding at the bleeding point.

[0083] Through the above technical solution, a visual through hole 111 is set on the base component 110 to visually and intuitively display the position of the puncture point during the operation and the status of compression hemostasis after the operation, thereby improving the accuracy of puncture and the efficiency and accuracy of hemostasis, and improving the safety of the operation; the clamping component 120 is used to fix the catheter sheath and guide and fix the catheter, and the telescopic tube component is used to guide and fix the catheter to prevent the catheter from bending and improve the safety of the operation.

[0084] like Figure 2 As shown, in one possible embodiment, the outer side wall of the base component 110 is symmetrically provided with snap holes 113 along the diameter direction, and each snap hole 113 has an outwardly expanding snap groove 114 at its edge.

[0085] Among them, the buckle groove 114 partially surrounds the buckle hole 113.

[0086] Figure 3 This is a schematic diagram of the structure of a clip assembly provided in an exemplary embodiment of the present invention.

[0087] like Figure 3As shown, in one possible embodiment, the clip assembly 120 is Y-shaped, with one end of the clip assembly 120 being a forked structure 121. Each end of the forked structure 121 has a cylindrical buckle 1211 on its inner side, and the other end of the clip assembly 120 is a hollow cylindrical structure 122. The clip assembly 120 is installed on the base component 110 by sliding into the buckle hole 113 along the buckle groove 114 through the cylindrical buckle 1211. The hollow cylindrical structure 122 of the clip assembly 120 is used to fix the catheter sheath.

[0088] One end of the hollow cylindrical structure 122 is connected to the bifurcated structure 121, and the other end of the hollow cylindrical structure 122 is connected to the telescopic tube assembly.

[0089] Thus, the clip assembly 120, the telescopic tube assembly, and the base component 110 are connected by a cylindrical buckle 1211 and a buckle hole 113. Furthermore, the buckle 1211 and the buckle hole 113 can also be used to adjust the pitch angle of the clip assembly 120 relative to the base component 110, thereby adjusting the pitch angle of the conduit inside the telescopic tube assembly.

[0090] like Figure 1 As shown, the hollow cylindrical structure 122 of the clamp assembly 120 is connected at both ends. A slot is provided at the connection between the hollow cylindrical structure 122 and the bifurcated structure 121. The slot is used to fix the catheter sheath base, which is fixed to the catheter sheath base. An infusion channel is provided on the bottom side of the catheter sheath, extending along the slot to the outside of the clamp assembly and connecting to an external infusion device. The hollow cylindrical structure 122 of the clamp assembly 120 covers and fixes the tail of the catheter sheath, so that when the clamp assembly 120 is installed on the base component 110, the catheter sheath passes through the hollow cylindrical structure 122 of the clamp assembly 120 and the semi-circular through hole 112 at the bottom of the side wall of the base component 110.

[0091] The side wall of the hollow cylindrical structure 122 of the clip assembly 120 may or may not have a slot. The clip assembly 120 is used in conjunction with the telescopic tube assembly.

[0092] If the hollow cylindrical structure 122 of the clip assembly 120 is provided with a slot, then the telescopic tube assembly connected to it is also provided with a slot. If the hollow cylindrical structure 122 of the clip assembly 120 is not provided with a slot, then the telescopic tube assembly connected to it does not need to be provided with a slot.

[0093] Figure 4 This is a perspective view of the connection structure between a clip assembly and a first telescopic tube assembly provided in an exemplary embodiment of this utility model. Figure 5 This is a schematic diagram of the connection structure between a clip assembly and a first telescopic tube assembly provided in an exemplary embodiment of this utility model.

[0094] like Figures 4 to 5As shown, in one possible embodiment, the telescopic tube assembly includes a first telescopic tube assembly 130.

[0095] The first telescopic tube assembly 130 does not have a slot on its side wall, and the hollow cylindrical structure 122 of the clamp assembly 120 connected to it also does not have a slot.

[0096] The first telescopic tube assembly 130 is connected to the hollow cylindrical structure 122 of the clamp assembly 120. The first telescopic tube assembly 130 includes multiple hollow cylindrical tubes 131 with gradually changing diameters. The multiple hollow cylindrical tubes 131 are connected end to end. A limiting key 132 is provided on the inner wall of the tail end of each hollow cylindrical tube 131. The limiting key 132 is used to prevent the hollow cylindrical tube 131 from slipping during telescopic movement. A first limiting piece 133 is also provided at the tail end of the hollow cylindrical tube 131. A first circular opening 134 is provided on the first limiting piece 133. The first circular opening 134 is used to support and hold the guide tube to prevent the guide tube from being eccentric or curled up in the telescopic tube assembly. The guide tube passes through the first circular opening 134 and enters the hollow cylindrical structure 122 of the clamp assembly 120 and the first telescopic tube assembly 130.

[0097] The limiting key 132 is disposed on the inner wall of the tail end of each hollow cylindrical tube 131, and the first limiting piece 133 is disposed at a distance of 5-10 mm from the limiting key 132 in the direction from the tail end to the head end of each hollow cylindrical tube 131.

[0098] The multiple hollow cylindrical tubes 131 are arranged in order of decreasing diameter as they move away from the hollow cylindrical structure 122 of the clamping assembly 120. At the connection point of the first and last sections of the hollow cylindrical tubes 131, the smaller diameter hollow cylindrical tube 131 extends into the interior of the larger diameter hollow cylindrical tube 131. The remaining hollow cylindrical tubes 131 can be shortened and incorporated into the first hollow cylindrical tube 131 connected to the hollow cylindrical structure 122 of the clamping assembly 120. The multiple hollow cylindrical tubes 131 can be stretched to adapt to the length of the conduit, thereby guiding and fixing the conduit.

[0099] In this utility model, the first end of the hollow cylindrical tube 131 represents the end of the hollow cylindrical tube 131 that is close to the hollow cylindrical structure 122 of the clamping assembly 120, and the tail end of the hollow cylindrical tube 131 represents the end of the hollow cylindrical structure 122 that is far away from the clamping assembly 120.

[0100] The first telescopic tube assembly 130 can adjust its length according to the patient's height or arm length until the catheter is fully inserted into the first telescopic tube assembly 130 for support and fixation.

[0101] In this invention, the number of hollow cylindrical tubes 131 in the first telescopic tube assembly 130 can be 4-8 sections.

[0102] like Figure 4 As shown, in one possible embodiment, the first telescopic tube assembly 130 further includes a hollow composite tube 135, which is fixed inside the hollow cylindrical structure 122 of the clamping assembly 120. Part of the hollow composite tube 135 is located inside the first section of hollow cylindrical tube 131 connected to the hollow cylindrical structure 122 of the clamping assembly 120. The hollow composite tube 135 is used to support multiple sections of hollow cylindrical tube 131 and also to support and hold the conduit to prevent the conduit from being eccentric or coiled inside the first telescopic tube assembly 130.

[0103] The end of the hollow cylindrical structure 122 of the clip assembly 120 is also provided with a limit key 132 and a first limit piece 133 to prevent the first hollow cylindrical tube 131 connected to the hollow cylindrical structure 122 of the clip assembly 120 from slipping off.

[0104] One end of the hollow composite tube 135 is fixed to the bottom baffle at the connection between the hollow cylindrical structure 122 and the bifurcated structure 121 of the clamping assembly 120. The other end of the hollow composite tube 135 passes through the first circular opening 134 on the first limiting piece 133 at the tail end of the hollow cylindrical structure 122. The length of the hollow composite tube 135 is greater than the length of the hollow cylindrical structure 122 of the clamping assembly 120, and a portion of the hollow composite tube 135 is located within the first section of the hollow cylindrical tube 131 connected to the hollow cylindrical structure 122 of the clamping assembly 120. The conduit passes through the hollow composite tube 135, which serves to fix, support, and guide the conduit.

[0105] As an example, the length of the multi-section hollow cylindrical tube 131 of the first telescopic tube assembly 130 can be set to 5-15cm, the inner diameter of the thinnest hollow cylindrical tube 131 can be set to 2.5-5mm, the inner wall thickness is 0.5-1mm, and the length of the hollow composite tube 135 is 5-10cm longer than the length of the hollow cylindrical structure 122 of the clamping assembly 120.

[0106] As an example, the first telescopic tube assembly 130 includes 4-10 hollow cylindrical tubes 131, each hollow cylindrical tube 131 having a length of 4-15cm. The inner diameter of the thinnest hollow cylindrical tube 131 is 2mm, and the inner diameter of the thickest hollow cylindrical tube 131 is 20mm. Thus, the first telescopic tube assembly 130 can be stretched to 110cm or shortened to 6cm depending on the length of the conduit.

[0107] In this utility model, an elastic tube is fitted at the tail end of the last hollow cylindrical tube 131 of the first telescopic tube assembly 130, that is, at the tail end of the hollow cylindrical tube 131 furthest from the hollow cylindrical structure 122 of the clamp assembly 120. The elastic tube can be made of soft materials with elasticity such as silicone, PU, ​​or TPU.

[0108] Figure 6This is a schematic diagram showing the connection of a base component, a clip assembly, and a second telescopic tube assembly provided in an exemplary embodiment of this utility model. Figure 7 This is a schematic diagram of the connection structure between a clip assembly and a second telescopic tube assembly provided in an exemplary embodiment of the present invention.

[0109] like Figure 3 , Figure 6 , Figure 7 As shown, in another possible embodiment, the telescopic assembly further includes a second telescopic tube assembly 140.

[0110] A first slot 1221 is provided on the side wall of the hollow cylindrical structure 122 of the clip assembly 120.

[0111] The second telescopic tube assembly 140 includes multiple slotted hollow cylindrical tubes 141 with gradually changing diameters. The second telescopic tube assembly 140 is connected to the hollow cylindrical structure 122 of the clamping assembly 120. The multiple slotted hollow cylindrical tubes 141 are connected end to end, and a second slot 142 is provided on the side wall of each slotted hollow cylindrical tube 141.

[0112] The multi-slotted hollow cylindrical tubes 141 are arranged in order of decreasing diameter as they move away from the hollow cylindrical structure 122 of the clamping assembly 120. At the connection point of the first and last sections of the multi-slotted hollow cylindrical tubes 141, the smaller diameter section extends into the larger diameter section. The remaining sections of the slotted hollow cylindrical tubes 141 can be shortened and incorporated into the first section of the slotted hollow cylindrical tube 141 connected to the hollow cylindrical structure 122 of the clamping assembly 120. The multi-slotted hollow cylindrical tubes 141 can be stretched to adapt to the length of the conduit, thereby guiding and fixing the conduit.

[0113] like Figure 7 As shown, in one possible embodiment, a second limiting key is provided on the inner wall of the tail end of each slotted hollow cylindrical tube 141. The second limiting key is used to prevent the slotted hollow cylindrical tube 141 from slipping during the extension and retraction process. A second limiting piece 143 is provided at the tail end of each slotted hollow cylindrical tube. A second circular opening 144 is provided on the second limiting piece 143. The second slot 142 on each slotted hollow cylindrical tube 141 communicates with the second circular opening 144 on the second limiting piece 143. The conduit is embedded in the hollow cylindrical structure 122, the second circular opening 144 and the second telescopic tube assembly 140 of the clamping assembly 120 through the first slot 1221 and the second slot 142.

[0114] The second limiting piece 143 is used to support the catheter and prevent the catheter from bending.

[0115] The multi-slotted hollow cylindrical tube 141 can also rotate. When it is necessary to insert a conduit, the second slot 142 on each slotted hollow cylindrical tube 141 and the first slot 1221 on the hollow cylindrical structure 122 of the clamping assembly 120 are aligned to the same straight line. The conduit is then inserted into the hollow cylindrical structure 122, the second circular opening 144 and the second telescopic tube assembly 140 of the clamping assembly 120 through the first slot 1221 and the second slot 142.

[0116] After the conduit is embedded in the hollow cylindrical structure 122, the second circular opening 144, and the second telescopic tube assembly 140 of the clamping assembly 120, the slotted hollow cylindrical tube 141 can be rotated to stagger the second slots 142 on each slotted hollow cylindrical tube 141, thereby sealing the conduit into the second telescopic tube assembly 140 and preventing the conduit from slipping out.

[0117] In this utility model, when using the guide device 100 for fixing the catheter sheath and the catheter, either the first telescopic tube assembly 130 or the second telescopic tube assembly 140 can be used as the telescopic tube assembly. When using the first telescopic tube assembly 130, a clamping assembly 120 without a slot needs to be used in conjunction. When using the second telescopic tube assembly 140, a clamping assembly 120 with a first slot 1221 needs to be used in conjunction. The first telescopic tube assembly 130 and the second telescopic tube assembly 140 are different structural schemes that can achieve the same telescopic function and fix and support the catheter.

[0118] Figure 8 This is a schematic diagram of the connection structure of a base component, a wrist fixing component, and a detachable knob provided in an exemplary embodiment of this utility model. Figure 9 This is a schematic diagram of the separation structure of a base component, a wrist fixing component, and a detachable knob provided in an exemplary embodiment of the present invention. Figure 10 This is a cross-sectional view showing the connection of a base component, a wrist fixing component, and a detachable knob, provided in an exemplary embodiment of this utility model.

[0119] like Figures 8 to 10 As shown, in one possible embodiment, the hemostatic component includes a first hemostatic component.

[0120] The first hemostatic component includes a detachable knob 150, which includes a rotating part 151 and a pressing part 152. The pressing part 152 is located below the rotating part 151. The rotating part 151 and the pressing part 152 are separate from each other. The outer side wall of the rotating part 151 is provided with an external thread, and the inner side wall of the visible through hole 111 of the base component 110 is provided with an internal thread. The detachable knob 150 moves downward linearly by engaging the external thread of the rotating part 151 and the internal thread on the inner wall of the visible through hole 111 to push the pressing part 152 to perform pressure hemostasis.

[0121] The detachable knob 150 is transparent.

[0122] When using the first hemostatic component, the detachable knob 150 and the visual aperture 111 form a first visual channel. During the procedure, the puncture point can be observed through the visual aperture 111 by removing the detachable knob 150. Postoperatively, the detachable knob 150 can be installed for pressure hemostasis, and the pressure hemostasis status can be observed through the first visual channel. The detachable knob 150 is installed and removed by engaging the external thread on the rotating part 151 and the internal thread on the inner wall of the visual aperture 111.

[0123] By setting a transparent and detachable knob 150, it is convenient to observe the puncture point position during the operation through the visual aperture 111 and observe the compression hemostasis status after the operation. Furthermore, the rotating part 151 and the compression part 152 of the detachable knob 150 are separated from each other to prevent the compression part 152 from causing rotational damage to the puncture point. The structure is simple, the operation is convenient, and the safety of the operation is improved.

[0124] like Figure 10 As shown, in one possible embodiment, the bottom surface of the compression part 152 is set as an arc surface, the bottom surface of the compression part 152 is provided with a soft material, and the soft material is covered with a composite hemostatic drug coating.

[0125] The composite hemostatic drug coating includes, but is not limited to, antifibrinolytic system drugs, drugs that reduce capillary permeability, thrombin drugs, and coagulation factor drugs.

[0126] Figure 11 This is a schematic diagram of the connection structure of a base component, a wrist fixing component, and a second hemostatic component provided in an exemplary embodiment of this utility model. Figure 12 This is a cross-sectional view showing the connection of a base component, a wrist fixing component, and a second hemostatic component provided in an exemplary embodiment of this utility model.

[0127] like Figure 11 , Figure 12 As shown, in another possible embodiment, the hemostatic assembly further includes a second hemostatic assembly 160. The second hemostatic assembly 160 is disposed at the bottom of the base component 110.

[0128] The second hemostatic component 160 includes an air bladder 161, an air bladder tube 162, and a Luer connector 163. The air bladder 161 is located at the bottom of the visible through-hole 111. One end of the air bladder tube 162 is connected to the air bladder 161, and the other end of the air bladder tube 162 is connected to one end of the Luer connector 163. The other end of the Luer connector 163 is connected to a gas injection device. The Luer connector 163 and the air bladder tube 162 are used to introduce gas into the air bladder 161, and the air bladder 161 is used to inflate and press to stop bleeding.

[0129] Among them, the airbag 161 can be made of transparent material. When the second hemostasis component 160 is used, the second hemostasis component 160 and the visual through hole 111 can also form a second visual channel to observe the postoperative compression hemostasis status.

[0130] By setting up an airbag 161, an airbag tube 162, and a Luer connector 163, air is inflated into the airbag 161 through the airbag tube 162 and the Luer connector 163 to apply pressure for hemostasis. The structure is simple, the operation is convenient, and the safety of the operation is improved.

[0131] In this invention, when using the guide device 100 for fixing the catheter sheath and the catheter, either the first hemostatic component or the second hemostatic component 160 can be selected as the hemostatic component. The first hemostatic component and the second hemostatic component 160 are different structural schemes that can achieve the same hemostatic function.

[0132] In one possible embodiment, the bottom of the base component 110 is also provided with a plate structure with a visible through hole 111. The plate structure is integrally formed with the base component 110 and is used to install the wrist fixing component 170.

[0133] In one possible embodiment, a guide device 100 for securing a catheter sheath and a catheter may further include a wrist fixation component 170, which is connected to a band plate structure on a base component 110 and is worn by a user.

[0134] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this utility model.

Claims

1. A guiding device for fixing a catheter sheath and a catheter, characterized in that, include: Base components, clip assembly, telescopic tube assembly, and hemostatic assembly; A visual through hole is provided at the center of the base component, and a semi-circular through hole is provided at the bottom of the side wall of the base component. The visual through hole is used to observe the position of the puncture point during the operation and the pressure hemostasis status after the operation. The semi-circular through hole is used to pass through and fix the catheter sheath. The clamping assembly is mounted on the outer side wall of the base component. The clamping assembly is used to fix the catheter sheath and guide and fix the catheter. The telescopic tube assembly is connected to the clamp assembly, and the telescopic tube assembly is used to guide and fix the conduit. The hemostatic component is disposed on the base component and is used to apply pressure to stop bleeding at the bleeding point.

2. The guiding device for fixing the catheter sheath and catheter according to claim 1, characterized in that, The outer side wall of the base component is symmetrically provided with snap holes along the diameter direction, and each snap hole has an outwardly expanding snap groove at its edge.

3. The guiding device for fixing the catheter sheath and catheter according to claim 2, characterized in that, The clamp assembly is Y-shaped, with one end having a forked structure and a cylindrical buckle on the inner side of each end of the forked structure. The other end of the clamp assembly is a hollow cylindrical structure. The clamp assembly is installed on the base component by sliding into the buckle hole along the buckle groove through the cylindrical buckle. The hollow cylindrical structure of the clamp assembly is used to fix the catheter sheath.

4. The guiding device for fixing the catheter sheath and catheter according to claim 3, characterized in that, The telescopic tube assembly includes a first telescopic tube assembly; The first telescopic tube assembly is connected to the hollow cylindrical structure of the clamp assembly. The first telescopic tube assembly includes multiple hollow cylindrical tubes with gradually changing diameters, which are connected end to end. A limiting key is provided on the inner wall of the tail end of each hollow cylindrical tube to prevent the hollow cylindrical tube from slipping during telescopic movement. A first limiting plate is also provided at the tail end of the hollow cylindrical tube. The first limiting plate has a first circular opening to support and hold the guide tube. The guide tube passes through the first circular opening and enters the hollow cylindrical structure of the clamp assembly and the first telescopic tube assembly.

5. The guiding device for fixing the catheter sheath and catheter according to claim 4, characterized in that, The first telescopic tube assembly further includes a hollow composite tube, which is fixed inside the hollow cylindrical structure of the clamp assembly. Part of the hollow composite tube is located inside the first section of the hollow cylindrical tube connected to the hollow cylindrical structure of the clamp assembly. The hollow composite tube is used to support the multiple sections of hollow cylindrical tube and also to support and hold the conduit.

6. The guiding device for fixing the catheter sheath and the catheter according to claim 3, characterized in that, A first slot is provided on the side wall of the hollow cylindrical structure of the clip assembly; The telescopic tube assembly also includes a second telescopic tube assembly; The second telescopic tube assembly includes multiple slotted hollow cylindrical tubes with gradually changing diameters. The second telescopic tube assembly is connected to the hollow cylindrical structure of the clamp assembly. The multiple slotted hollow cylindrical tubes are connected end to end, and a second slot is provided on the side wall of each slotted hollow cylindrical tube.

7. The guiding device for fixing the catheter sheath and catheter according to claim 6, characterized in that, A second limiting key is provided on the inner wall of the tail end of each slotted hollow cylindrical tube. The second limiting key is used to prevent the slotted hollow cylindrical tube from slipping during the extension and retraction process. A second limiting plate is provided at the tail end of each slotted hollow cylindrical tube. The second limiting plate is provided with a second circular opening. The second slot on each slotted hollow cylindrical tube communicates with the second circular opening on the second limiting plate. The conduit is embedded in the hollow cylindrical structure of the clamping assembly, the second circular opening, and the second telescopic tube assembly through the first slot and the second slot.

8. The guiding device for fixing the catheter sheath and catheter according to claim 1, characterized in that, The hemostatic assembly includes a first hemostatic assembly; The first hemostatic component includes a detachable knob, which includes a rotating part and a pressing part. The pressing part is located below the rotating part and is separate from the rotating part. The outer side wall of the rotating part is provided with an external thread, and the inner side wall of the visible through hole of the base component is provided with an internal thread. The detachable knob moves downward linearly by engaging the external thread of the rotating part and the internal thread of the inner wall of the visible through hole to push the pressing part to compress and stop the hemostasis.

9. The guiding device for fixing the catheter sheath and the catheter according to claim 8, characterized in that, The bottom surface of the compression part is set as an arc surface, and a soft material is provided on the bottom surface of the compression part. Furthermore, the soft material is covered with a composite hemostatic drug coating.

10. The guiding device for fixing the catheter sheath and the catheter according to claim 1, characterized in that, The hemostatic assembly also includes a second hemostatic assembly; The second hemostatic assembly includes an air bladder, an air bladder tube, and a Luer connector. The air bladder is located at the bottom of the visible opening. One end of the air bladder tube is connected to the air bladder, and the other end of the air bladder tube is connected to one end of the Luer connector. The other end of the Luer connector is connected to a gas injection device. The Luer connector and the air bladder tube are used to introduce gas into the air bladder, and the air bladder is used to inflate and press to stop bleeding.

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