Catheter capable of simultaneously completing hemangioma embolism and intraoperative radiography

Abstract

The utility model relates to a catheter capable of simultaneously completing hemangioma embolism and intraoperative radiography, which comprises a catheter main body, a contrast agent channel and an embolism channel which are mutually independent are arranged in the catheter main body, the contrast agent channel and the embolism channel penetrate through two ends of the catheter main body, and a connector is arranged at one end of the catheter main body. The connector is provided with a contrast agent inlet and an embolism material inlet, the contrast agent inlet is communicated with one end of the contrast agent channel, the embolism material inlet is communicated with one end of the embolism channel, and the catheter body is provided with a sealing structure used for sealing or opening the other end of the contrast agent channel. By means of the integrated design, seamless switching between embolism and radiography operation is achieved, the operation process is simplified, the operation time is shortened, the embolism effect is monitored through real-time radiography, it is ensured that the release position and number of embolism materials are accurate, the number of times of catheter insertion and replacement is reduced, vascular injury and intraoperative infection risks are reduced, use of various catheters and auxiliary equipment is reduced, and the operation efficiency is improved. The operation consumable cost is reduced, and the catheter is easy to operate and wide in application range.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field, especially in a kind of catheter that can complete simultaneously hemangioma embolism and intraoperative angiography. BACKGROUND

[0002] In the intervention treatment of hemangioma, embolism and angiography are two important steps. Among them, hemangioma embolism: embolism material (such as microparticle, coil or colloid) is injected into target blood vessel through catheter to block blood flow to hemangioma, so as to realize treatment. Intraoperative angiography: during intervention treatment, contrast agent needs to be injected regularly to monitor embolism effect and position catheter position.

[0003] At present, the two steps usually need to be completed separately using two catheters, and the following main deficiencies exist:

[0004] 1) Complex surgical procedure: frequent catheter replacement leads to cumbersome surgical steps, prolongs operation time and increases the risk of intraoperative infection and other complications.

[0005] 2) Difficult catheter positioning: repeated insertion and removal of catheter can cause position deviation, affecting the accuracy of embolism.

[0006] 3) Increased operation risk: multiple catheter changes increase the possibility of blood vessel wall damage, especially for fragile diseased blood vessels.

[0007] 4) Higher cost: multiple catheters and auxiliary equipment are needed, increasing the cost of surgical consumables.

[0008] In summary, the prior art cannot simultaneously meet the requirements of safety, efficiency and cost control. Therefore, a catheter that can complete hemangioma embolism and intraoperative angiography simultaneously is needed to overcome the above technical problems. INVENTION CONTENTS

[0009] The technical problem to be solved by the utility model is to provide a catheter that can complete hemangioma embolism and intraoperative angiography simultaneously, effectively overcoming the defects of the prior art.

[0010] The technical solution of the utility model to solve the above technical problem is as follows:

[0011] A catheter that can complete hemangioma embolism and intraoperative angiography simultaneously, comprising a catheter body, the catheter body is internally provided with a contrast agent channel and an embolism channel which are independent of each other, the contrast agent channel and the embolism channel pass through both ends of the catheter body, one end of the catheter body is provided with a connector, the connector is provided with a contrast agent inlet and an embolism material inlet, the contrast agent inlet is in communication with one end of the contrast agent channel, the embolism material inlet is in communication with one end of the embolism channel, the catheter body is provided with a closure structure for closing or opening the other end of the contrast agent channel.

[0012] On the basis of the above technical solutions, the utility model can also be improved as follows.

[0013] Further, the embolism channel is provided with a pressure monitor.

[0014] Further, the pressure monitor is a pressure sensor, the joint is provided with a line interface, the catheter body is provided with a wire channel, and the pressure sensor is connected with a wire passing through the wire channel and the line interface.

[0015] Further, the closed structure comprises a push-pull wire and a plug, the joint is provided with an inlet in communication with one end of the contrast agent channel, the push-pull wire penetrates through the contrast agent channel, one end of the push-pull wire passes through the inlet, the plug is mounted on the other end of the push-pull wire, and the push-pull wire is used to move relative to the contrast agent channel under external force, so as to embed and close the other end port of the contrast agent channel or open.

[0016] Further, the other end port of the contrast agent channel is provided with a conical horn mouth, and the plug is a conical head matched with the horn mouth.

[0017] Further, one end of the push-pull wire is provided with a pull ring.

[0018] Further, the other end of the catheter body is provided with a conical guide part.

[0019] Further, the surface of the catheter body is provided with a development mark line along the length direction thereof.

[0020] Further, the other end port of the embolism channel is provided with a plurality of valves, and the plurality of valves are used to close or open the other end port of the embolism channel.

[0021] Further, the inner surfaces of the contrast agent channel and the embolism channel are provided with a medical anti-sticking coating.

[0022] The utility model discloses the beneficial effects are: the structure design is reasonable, realizes the seamless switching of embolism and radiography operation through the integration design, simplifies the operation process, shortens the operation time, and real-time radiography monitors embolism effect, ensures the release position and quantity precision of embolism material, reduces the catheter insertion and the replacement frequency, reduces the blood vessel injury and the intraoperative infection risk, reduces the use of a variety of catheters and auxiliary equipment, reduces the operation consumable cost, and the catheter operation is simple, and the use range is extensive, is applicable to the interventional therapy of cerebral aneurysm, pulmonary aneurysm, liver hemangioma and a variety of hemangioma. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the structure schematic view of the catheter of the utility model that can complete the hemangioma embolism and intraoperative radiography simultaneously;

[0024] Figure 2 This is a partial cross-sectional structural diagram of the catheter of this utility model that can simultaneously perform hemangioma embolization and intraoperative angiography.

[0025] Figure 3 This is a schematic diagram of another embodiment of the present invention that can simultaneously perform hemangioma embolization and intraoperative procedures.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Catheter body; 2. Connector; 11. Contrast agent channel; 12. Embolization channel; 13. Conical guide section; 31. Push-pull wire; 32. Plug; 121. Pressure monitor; 122. Valve; 311. Pull ring. Detailed Implementation

[0028] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0029] Example

[0030] like Figure 1 As shown, the catheter capable of simultaneously performing hemangioma embolization and intraoperative angiography in this embodiment includes a catheter body 1. The catheter body 1 has an independent contrast agent channel 11 and an embolization channel 12 inside. The contrast agent channel 11 and the embolization channel 12 pass through both ends of the catheter body 1. One end of the catheter body 1 is provided with a connector 2. The connector 2 is provided with a contrast agent inlet a and an embolization material inlet b. The contrast agent inlet is connected to one end of the contrast agent channel 11, and the embolization material inlet is connected to one end of the embolization channel 12. The catheter body 1 is provided with a sealing structure for closing or opening the other end of the contrast agent channel 11.

[0031] The catheter in this embodiment, capable of simultaneously performing hemangioma embolization and intraoperative angiography, has two independent contrast agent channels 11 and embolization channels 12. Contrast agent and embolization material can be injected separately during the procedure, achieving the dual functions of hemangioma embolization and intraoperative angiography with a single catheter. It offers the following advantages:

[0032] 1) Simplify the surgical procedure: reduce the number of catheter changes, improve surgical efficiency, and shorten the operation time.

[0033] 2) Improved precision: By integrating embolization and angiography functions, the embolization effect can be monitored in real time to ensure the precision of treatment.

[0034] 3) Reduce operational risks: Reduce the number of catheter insertions and replacements, thereby reducing the risk of vascular injury and intraoperative infection.

[0035] 4) Cost savings: reduce the use of surgical consumables, reduce the overall cost of surgery.

[0036] In addition, by setting a closure structure at the port of the contrast agent channel 11, the injection or pause of the contrast agent can be controlled at any time, avoiding excessive injection of the contrast agent and causing discomfort to the patient.

[0037] As a preferred embodiment, as shown in Figure 3 The embolization channel 12 is provided with a pressure monitor 121.

[0038] In the above embodiment, the pressure in the embolization channel 12 can be monitored in real time during the process of intraoperative embolization material input by the pressure monitor 121. Whether a blockage occurs in the embolization channel 12 (a blockage occurs in the embolization channel 12, and the pressure rises) or whether the injection amount is too large when the embolization material is injected into the hemangioma (the injection amount is too large, forming "pressure build-up", causing the pressure in the embolization channel 12 to rise).

[0039] In this embodiment, the pressure monitor 121 is a pressure sensor, the connector 2 is provided with a wire interface, the catheter body 1 is provided with a wire channel, and the pressure sensor is connected with a wire passing through the wire channel and the wire interface. The pressure monitor 121 is embedded in the inner wall of the embolization channel 12.

[0040] The embolization material is generally microparticles, coils or colloids. In this embodiment, colloid material is best.

[0041] As a preferred embodiment, the closure structure includes a push-pull wire 31 and a plug 32, the connector 2 is provided with an inlet c in communication with one end of the contrast agent channel 11, the push-pull wire 31 penetrates the contrast agent channel 11, and one end of the push-pull wire 31 penetrates the inlet c, the plug 32 is mounted on the other end of the push-pull wire 31, and the push-pull wire 31 is used to move relative to the contrast agent channel 11 under external force, thereby fitting to close the other end port of the contrast agent channel 11 or opening.

[0042] In the above embodiment, when closure is needed, the push-pull wire 31 is pulled outward, so that the plug 32 is embedded in the port of the contrast agent channel 11, and the contrast agent channel 11 can be quickly closed. When opening the injection of the contrast agent is needed, the push-pull wire 31 is pushed inward, so that the plug 32 extends outward, and a gap for the contrast agent to pass between the plug 32 and the port is formed.

[0043] In this embodiment, the inlet c is provided with a rubber sealing structure, and the push-pull wire 31 penetrates the sealing structure and can be pulled relative thereto.

[0044] In this embodiment, the other end port of the contrast agent channel 11 is designed as a conical horn, and the plug 32 is a conical head that fits the horn. This design is reasonable, and the path for closing and opening is shortened, corresponding to rapidness.

[0045] In this embodiment, one end of the push-pull wire 31 is provided with a pull ring 311. It is convenient to hook the pull ring 311 to exert a pushing and pulling force on the push-pull wire 31.

[0046] In this embodiment, the other end of the catheter body 1 is provided with a conical guide part 13. It ensures smooth advancement in the blood vessel.

[0047] In this embodiment, the surface of the catheter body 1 is provided with a development mark line along the length direction. It is convenient to locate by image technology during the operation.

[0048] In this embodiment, a plurality of valves 122 are provided at the other end port of the embolization channel 12. The plurality of valves 122 are used to close or open the other end port of the embolization channel 12. When not delivering, the plurality of valves 122 close the other end port of the embolization channel 12 by relying on their own elastic force. During the injection of embolic material, the material pushes the valves 122 open.

[0049] In this embodiment, the inner surfaces of the contrast agent channel 11 and the embolization channel 12 are provided with a medical anti-sticking coating. It reduces drug and material residues and improves delivery efficiency. This layer belongs to the products of the prior art, and will not be described here.

[0050] In this embodiment, color and shape marks are provided at different interfaces of the connector 2 to prevent misconnection.

[0051] The catheter of this embodiment, which can complete both vascular tumor embolization and intraoperative angiography, is connected with an embolization delivery device and a contrast agent pump at the contrast agent inlet and the embolic material inlet before use, respectively, to ensure that the catheter and the interface are firmly connected, and to check the patency of the channel. The use principle is as follows:

[0052] I. Insertion and positioning of the catheter: under the guidance of the image, the catheter is inserted through the blood vessel to the target vascular tumor area. The position of the catheter is confirmed using the development mark line.

[0053] II. Embolization operation: embolic material is delivered through the embolization channel to the target vascular tumor to block the blood flow into the lesion area. A pressure sensor is used to monitor the delivery process to prevent material blockage.

[0054] III. Intraoperative angiography: contrast agent is injected through the contrast agent channel 11 to display the imaging effect of the vascular tumor and the surrounding blood vessels in real time. The delivery amount and position of the embolic material are adjusted according to the angiographic results.

[0055] IV. Multiple alternating operations: embolization and angiography can be alternately performed multiple times in a single cannulation operation until the treatment is completed.

[0056] V. Withdrawal and Termination: After confirming the embolization and the effect of the contrast, the catheter is slowly withdrawn. After the catheter is withdrawn, the catheter is checked for completeness and the procedure-related data are recorded, the catheter is cleaned and sterilized and is ready for the next use.

[0057] In the description of the present utility model, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are merely for the convenience of describing the present utility model and simplifying the description, and thus cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and thus cannot be understood as limiting the present utility model.

[0058] In addition, the terms "first" and "second" are merely used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0059] In the present utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For ordinary skilled persons in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0060] In the present utility model, unless otherwise explicitly specified and limited, the "first" feature is "on" or "under" the "second" feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the "first" feature "above", "above" and "above" the "second" feature can be directly above or obliquely above the "second" feature, or only indicate that the horizontal height of the "first" feature is higher than that of the "second" feature. The "first" feature "below", "below" and "below" the "second" feature can be directly below or obliquely below the "second" feature, or only indicate that the horizontal height of the "first" feature is less than that of the "second" feature.

[0061] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

[0062] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.

Claims

1. A catheter for simultaneous embolization of a hemangioma and intraoperative angiography, characterized in that: The catheter comprises a catheter body (1) with a contrast agent channel (11) and an embolization channel (12) inside the catheter body (1) and penetrating through both ends of the catheter body (1), one end of the catheter body (1) is provided with a connector (2) with a contrast agent inlet and an embolization material inlet, the contrast agent inlet is communicated with one end of the contrast agent channel (11), the embolization material inlet is communicated with one end of the embolization channel (12), and the catheter body (1) is provided with a closure structure for closing or opening the other end of the contrast agent channel (11).

2. The catheter for simultaneous embolization of hemangiomas and intraoperative imaging according to claim 1, characterized in that: The embolization channel (12) is provided with a pressure monitor (121).

3. The catheter of claim 2, wherein: The pressure monitor (121) is a pressure sensor, the connector (2) is provided with a line interface, the catheter body (1) is provided with a wire channel, and the pressure sensor is connected with a wire penetrating through the wire channel and the line interface.

4. The catheter of claim 1, wherein: The closure structure comprises a push-pull wire (31) and a plug (32), the connector (2) is provided with an inlet communicated with one end of the contrast agent channel (11), the push-pull wire (31) penetrates through the contrast agent channel (11), and one end of the push-pull wire (31) penetrates through the inlet, the plug (32) is mounted on the other end of the push-pull wire (31), and the push-pull wire (31) is used to move relative to the contrast agent channel (11) under external force, so as to embed and close the other end port of the contrast agent channel (11) or open.

5. The catheter of claim 4, wherein: The other end port of the contrast agent channel (11) is provided as a conical horn, and the plug (32) is a conical head matched with the horn.

6. The catheter of claim 4, wherein: One end of the push-pull wire (31) is provided with a pull ring (311).

7. The catheter of claim 1, wherein: The other end of the catheter body (1) is provided with a conical guide part (13).

8. The catheter of claim 1, wherein: The surface of the catheter body (1) is provided with a development mark line along the length direction.

9. The catheter of claim 1, wherein: The other end port of the embolization channel (12) is provided with a plurality of valves (122), and the plurality of valves (122) are used to close or open the other end port of the embolization channel (12).

10. The catheter for simultaneous embolization of a vascular tumor and intraoperative imaging according to any one of claims 1 to 9, characterized in that: The inner surfaces of the contrast agent channel (11) and the embolization channel (12) are provided with a medical anti-adhesion coating.

Images