Catheter treatment device for operation

Abstract

The invention discloses a surgical catheter treatment device, and relates to the technical field of medical instruments, the surgical catheter treatment device comprises an operating mechanism and a catheter, and the operating mechanism is provided with at least one operating channel; the catheter is provided with at least one catheter cavity, and any catheter cavity is provided with a near-end working opening and a far-end working opening; at least one pipe cavity is divided into at least two sub pipe cavities arranged in the length direction, and any sub pipe cavity is provided with a near terminal working port and a far terminal working port; at least one near-end working port and / or at least one near-terminal working port positioned on the end surface of the near end of the catheter are / is communicated with the operation channel; on the premise that the outer diameter of the catheter is not enlarged and the good passing ability of the catheter is guaranteed, it can be guaranteed that each operation has large enough operation space, the operation usability is good, the operation difficulty can be reduced, and the operation efficiency can be improved.

Description

Technical Field

[0001] This invention relates to the field of surgical catheter technology, and more particularly to a surgical catheter treatment device. Background Technology

[0002] Current medical procedures such as surgery, drainage, and drug administration often require the use of therapeutic devices, including catheters. These devices may be used for different procedures at different stages of the surgery, such as inserting instruments (e.g., guidewires), injecting fluids, and draining. This necessitates the use of multi-lumen catheters or single-lumen catheters with different functions. However, changing and using different single-lumen catheters during surgery not only increases the complexity of the procedure but also increases the risk of complications when exchanging catheters.

[0003] Common multi-lumen catheters typically employ a parallel multi-lumen structure. To ensure that each lumen has a basic operating size, the overall outer diameter of the catheter is relatively large, which leads to lower catheter compliance, poorer passage, and increased operational difficulty. Moreover, although each lumen has a basic operating size, its inner diameter is significantly smaller than that of a single-lumen catheter, resulting in problems such as low injection and aspiration efficiency and difficulty in instrument insertion due to size limitations.

[0004] In the existing technology, in order to solve the problem of increased catheter outer diameter, although there are designs that can change the catheter diameter by means of heat shrinking and stretching, while reducing the outer diameter, all internal cavities are often compressed, resulting in a further reduction in the inner diameter of the functional cavity, which will further affect the passage of fluid injection and instruments.

[0005] Therefore, how to achieve more functions, maintain patency of the cavity, and ensure catheter compliance within a limited outer diameter has become a pressing technical problem to be solved in this field. Summary of the Invention

[0006] The purpose of this invention is to provide a surgical catheter treatment device to solve the problems existing in the prior art. It can ensure that each operation has a sufficiently large operating space without increasing the outer diameter of the catheter and ensuring good catheter passage, thus improving the usability of operation, reducing the difficulty of surgery and improving surgical efficiency.

[0007] To achieve the above objectives, the present invention provides the following solution: This invention provides a surgical catheter treatment device, comprising an operating mechanism and a catheter, wherein the operating mechanism has at least one operating channel; the catheter has at least one lumen, each lumen having a proximal working port and a distal working port; at least one lumen is divided into at least two sub-lumens arranged along its length, each sub-lumen having a proximal working port and a distal working port; at least one proximal working port and / or at least one proximal working port located on the proximal end face of the catheter communicates with the operating channel.

[0008] In one embodiment, the sub-lumen located at the distal end is called the distal terminal lumen, the sub-lumen located at the proximal end is called the proximal terminal lumen, and the sub-lumen located between the distal terminal lumen and the proximal terminal lumen is called the intermediate sub-lumen; the proximal terminal working port of the distal terminal lumen is located on its sidewall, and the distal terminal working port is located on its distal end face; the distal terminal working port of the proximal terminal lumen is located on its sidewall, and the proximal terminal working port is located on its proximal end face; the proximal terminal working port and the distal terminal working port of the intermediate sub-lumen are both located on its sidewall.

[0009] As one embodiment, the orientation of the near terminal working port on the side wall of the sub-cavity is parallel to or at an angle to the orientation of the far terminal working port.

[0010] As one embodiment, at least one of the lumens is divided into two or more sub-lumens in the longitudinal direction by a partition member, and the two end faces of the partition member are configured as guide surfaces to facilitate the surgical instruments to reach the predetermined position and / or guide the injection and discharge of the medium.

[0011] As one implementation, the guide surface is a gradually inclined slope or arc surface from the distal end to the proximal end.

[0012] As one embodiment, the catheter includes at least two parallel-extending lumens, with at least one lumen not being separated.

[0013] As one embodiment, the distal sidewall of the catheter is provided with a cystic structure that expands after being filled with a medium, and the cystic structure is in communication with at least one of the distal working ports and / or the distal terminal working ports.

[0014] As one embodiment, the cystic structure is a balloon.

[0015] As one implementation, the operation channel is configured in a one-to-one correspondence with the proximal working port; or, at least one operation channel corresponds to at least two of the proximal working ports; or, at least one of the proximal working ports corresponds to at least two operation channels.

[0016] As one embodiment, the operating channel is coaxial or parallel to the axis of the near-terminal working port; or, the operating channel has an angle with the axis of the near-terminal working port.

[0017] Compared with the prior art, the present invention has the following technical effects: In this invention, the lumen of the surgical catheter treatment device is divided into at least two sub-lumens arranged in the elongation direction. An operation can be performed in each sub-lumen, so that the various operations do not interfere with each other without increasing the outer diameter of the catheter and ensuring good catheter passage. There is no need to reduce the diameter of the catheter, ensuring that each operation has a sufficiently large operating space. The operation is more usable, which helps to reduce the difficulty of surgery and improve the efficiency of surgery. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a surgical catheter treatment device (with two sub-lumens) according to one embodiment of the present invention. Figure 2 This is a schematic diagram of another structure of the surgical catheter treatment device (with 3 sub-lumens) according to one embodiment of the present invention. Figure 3 This is a schematic diagram of another structure of a surgical catheter treatment device (with a balloon) according to one embodiment of the present invention. Figure 4 This is a schematic diagram of a catheter structure in one embodiment of the present invention; Figure 5 This is a schematic diagram of another structure of the catheter in one embodiment of the present invention; Figure 6 This is a schematic diagram of another structure of the catheter in one embodiment of the present invention; Figure 7 for Figure 1 A schematic diagram illustrating the application of a surgical catheter device in a specific surgical procedure; Figure 8 for Figure 2 A schematic diagram illustrating the application of a surgical catheter device in a specific surgical procedure; Figure 9 for Figure 3 A schematic diagram illustrating the application of a surgical catheter device in a specific surgical procedure.

[0020] Figure label: 1. Operating mechanism; 11. Operating channel; 2. Catheter; 21. Lumen; 211. Distal lumen; 212. Proximal lumen; 213. Septum; 214. Intermediate lumen; 2111. Proximal working port; 2112. Distal working port; 22. Balloon; 3. Endoscope; 4. Guidewire; 5. Suction tube. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] The purpose of this invention is to provide a surgical catheter treatment device to solve the problems existing in the prior art. It can ensure that each operation has a sufficiently large operating space without increasing the outer diameter of the catheter and ensuring good catheter passage, thus improving the usability of operation, reducing the difficulty of surgery and improving surgical efficiency.

[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] like Figures 1-9 As shown, this embodiment provides a surgical catheter treatment device, including an operating mechanism 1 and a catheter 2. The operating mechanism 1 is typically used by the operator to hold the device and has certain operational functions for instruments such as the catheter 2 and guidewire 4. Specifically, the operating mechanism 1 can be a handle or a catheter seat, and the operating mechanism 1 has at least one operating channel 11. The catheter 2 has at least one lumen 21, each lumen 21 having a proximal working port and a distal working port. At least one lumen 21 of the one or more lumens 21 is divided into at least two sub-lumens arranged along the length direction, each sub-lumen having a proximal working port 2111 and a distal working port 2112. At least one proximal working port and / or at least one proximal working port 2111 located on the proximal end face of the catheter 2 communicates with the distal end of the operating channel 11. The proximal end of the operating channel 11 can communicate with an injection device, a negative pressure aspiration device, or other devices, and can be used for injection, aspiration, or other operations. Of course, the operating channel 11 can also be inserted directly into other instruments, such as the guidewire 4, without communicating with other devices. The specific functions of operation channel 11 are determined according to actual needs.

[0025] In this embodiment, the farthest sub-lumen's distal working port 2112 is actually the farthest working port of the lumen 21 where this sub-lumen is located, and the nearest sub-lumen's proximal working port 2111 is actually the proximal working port of the lumen 21 where this sub-lumen is located.

[0026] In order to ensure that the length of the sub-cavity is fully utilized, in this embodiment, the near terminal working port 2111 and the far terminal working port 2112 of the sub-cavity are located close to the separation position.

[0027] In this embodiment, "remote end" refers to the end away from the staff, and "proximal end" refers to the end closer to the staff, or the end away from the patient.

[0028] In this embodiment, after the lumen 21 is divided into at least two sub-lumens arranged in the elongation direction, an operation can be performed in each sub-lumen, such as inserting an instrument (e.g., guidewire 4, suction tube 5, or other instruments), injecting fluid, or aspirating fluid. This allows for the operation to proceed without interfering with each other, without enlarging the outer diameter of the catheter 2 and ensuring good passage of the catheter 2. It also eliminates the need to reduce the diameter of the catheter 2, ensuring that each operation has sufficient operating space, resulting in good usability, reducing surgical difficulty, and improving surgical efficiency.

[0029] To distinguish the various sub-lumens, the sub-lumen located at the farthest end is called the distal terminal lumen 211, and the sub-lumen located at the nearest end is called the proximal terminal lumen 212. If there is at least one sub-lumen between the distal terminal lumen 211 and the proximal terminal lumen 212, these sub-lumens are called intermediate sub-lumens 214. The proximal terminal working port 2111 of the distal terminal lumen 211 is located on its sidewall and close to the partition, while the distal terminal working port 2112 is located on its distal end face. The proximal terminal working port 2111 of the proximal terminal lumen 212 is located on its proximal end face, while the distal terminal working port 2112 is located on its sidewall and close to the partition. The distal terminal working port 2112 and the proximal terminal working port 2111 of the intermediate sub-lumen 214 are both located on its sidewall and are respectively positioned close to the partitions at both ends.

[0030] The orientation of the far terminal working port 2112 and the near terminal working port 2111 on both sides of the separation position is parallel or at an angle.

[0031] The distal terminal working port 2112 and the proximal terminal working port 2111 in the same sub-cavity are parallel or have an angle.

[0032] In one embodiment, at least one lumen 21 is divided into two or more sub-lumens along its length by a partition member. The two end faces of the partition member are configured as guide surfaces to facilitate the arrival of surgical instruments at predetermined positions and / or to guide the entry and exit of the media. By configuring the two end faces of the partition member as guide surfaces, it facilitates the insertion and exit of surgical instruments, preventing them from becoming stuck at the partition member's position. Simultaneously, it also facilitates the entry and exit of the media, reducing media flow resistance, or guides the media to exit in a designated direction, avoiding interference with surgical instruments placed in adjacent sub-lumens.

[0033] In this embodiment, the catheter 2 is made of surgical-grade nylon, polyurethane, or other polymer materials, which have a certain degree of conformability and are easy to insert into tissue cavities. In this embodiment, the partition component can be a septum 213, which can be integrally formed with the wall of the catheter 2, or the septum 213 can be connected to the wall of the catheter 2 by bonding or welding.

[0034] As a specific example, in this embodiment, the partition 213 is provided with one layer. The distal terminal lumen 211 can be through which the guide wire 4 can be inserted, and the proximal terminal lumen 212 can be connected to an injection device or aspiration device through the operation channel 11, so as to inject or extract the medium. Figure 1 As shown. This type of surgical catheter 2 treatment device can be used in percutaneous interventional procedures. The catheter 2 can be inserted percutaneously into a blood vessel and, guided by the guidewire 4, placed at the target blood vessel location to administer medication or aspirate thrombi, such as... Figure 7 As shown. The diameter of catheter 2 is typically 4-7 Fr ( (1.33mm-2.33mm), length 60cm-100cm.

[0035] Specific advantages: In this embodiment, the distal lumen 211 for inserting the guidewire 4 and the proximal lumen 212 for drug administration or suction are arranged along the length direction. While meeting operational requirements, compared to multi-lumen tubes with parallel lumens, the outer diameter of the catheter 2 in this embodiment can be made smaller, resulting in better passage and access to finer lumens 21. Furthermore, the inner diameter of the distal lumen 211 for inserting the guidewire 4 is larger, allowing for the passage of a thicker guidewire 4. When the catheter 2 reaches the target position along the guidewire 4, the pushing support is stronger, resulting in better passage. The larger inner diameter of the proximal lumen 212 for drug administration or suction allows for a larger flow rate during drug administration, reducing surgical time, patient injury, and the risk of prolonged surgery. During suction, the thicker proximal lumen 212 provides greater suction, making it easier to aspirate thrombi.

[0036] As another specific example, in this embodiment, the partition 213 is provided with two intervals, dividing the lumen 21 into a distal end lumen 211, a proximal end lumen 212, and an intermediate sub-lumen 214. The intermediate sub-lumen can accommodate a working instrument, such as a suction tube 5. A guide wire 4 can be inserted into the distal end lumen 211. The proximal end lumen 212 can be connected to an injection device or aspiration device through the operating channel 11, allowing for the injection or extraction of media. Figure 2 As shown. This type of catheter 2 treatment device can be used in endoscopic surgery. The catheter 2 enters through the airway and is placed into the target bronchus under the guidance of the endoscope 3 clamp channel and guidewire 4. It can guide surgical instruments and perform drug administration, irrigation, or suctioning, such as... Figure 8 As shown. The diameter of catheter 2 is typically 5-10 Fr ( (1.67mm-3.33mm), length 60cm-100cm.

[0037] Specific advantages: In this embodiment, the distal lumen 211 for inserting the guidewire 4, the intermediate lumen 214 for inserting other surgical instruments, and the proximal lumen 212 for irrigation or suction are arranged along the length. While meeting operational requirements, compared to multi-lumen tubes with parallel lumens, the outer diameter of the catheter 2 in this embodiment can be made smaller, resulting in better passage and access to finer lumens 21 (which the endoscope 3 may not be able to reach). Furthermore, the inner diameter of the distal lumen 211 for inserting the guidewire 4 is larger, allowing for the passage of a thicker guidewire 4. When the catheter 2 reaches the target position along the guidewire 4, the pushing support is stronger, and the passage is better. The intermediate lumen 214 can be used to insert a suction tube 5 or other surgical instruments, such as guiding a second guidewire 4 or inserting a spray tube, cell brush, etc., allowing for simultaneous guidance of other surgical instruments to complete the surgery without obstructing the endoscope 3's clamping channel. The proximal end lumen 212, used for drug administration, irrigation, or suctioning, is larger, and the flow rate of the proximal end lumen 212 is greater, which can increase the surgical effect, reduce the operation time, and reduce damage to the patient.

[0038] In this embodiment, the length of the sub-lumen needs to be designed according to the surgical requirements. Generally, the proximal sub-lumen 212, which is used for aspiration or injection, is longer because it is used to perform surgery on the target tissue. In addition, the intermediate sub-lumen 214 needs to be connected to working instruments, such as aspiration tube 5, injection tube, guide sheath, etc., so the intermediate sub-lumen 214 also needs to have a certain length. The distal sub-lumen 211, if used to insert the guidewire 4, can be set shorter.

[0039] In this embodiment, the catheter 2 includes at least two parallel extending lumens 21. At least one lumen 21 is divided into multiple sub-lumens, and at least one lumen 21 is not divided and remains a single, complete lumen 21. The proximal working port of this lumen 21 is located on its proximal end face, and the distal working port may be located on its distal end face or on its sidewall. When the distal working port of this lumen 21 is located on its sidewall, the distal end of the lumen 21 can be blocked. Other operations can be performed on the undivided lumen 21.

[0040] As one embodiment, a cystic structure, such as a balloon 22, can be provided on the distal sidewall of the catheter 2 to expand upon filling with a medium. The balloon 22 communicates with at least one distal working port and / or one distal working port 2112. In this embodiment, the balloon 22 communicates with the distal working port of one of the lumens 21, such as... Figure 3 As shown. This type of surgical catheter 2 treatment device can be used in endoscopic occlusion surgery of the gastrointestinal tract. Specifically, the guidewire 4 can be inserted into the gastrointestinal tract through the endoscope 3, and then the catheter 2 is inserted into a deeper gastrointestinal cavity through the endoscope 3 via the guidewire 4. During the insertion of the catheter 2, the guidewire 4 needs to exit from the proximal working port 2111 of the distal end lumen 211. The balloon 22 can be inflated using the distal working port of the lumen 21, thus achieving distal occlusion of the gastrointestinal tract. Then, the proximal end lumen 212 is filled with fluid to fully inflate the proximal intestinal lumen, facilitating safe and effective subsequent gastrointestinal anastomosis surgery, such as... Figure 9 As shown. The diameter of catheter 2 is typically 5-10 Fr ( (1.67mm-3.33mm), length 180cm-250cm.

[0041] If the balloon 22 is connected to the distal working port 2112 of the proximal end lumen 212 (not shown in the figure), the balloon 22 can block the proximal end of the gastrointestinal tract, and the distal working port of the lumen 21 can be used to inject fluid into the distal end of the gastrointestinal tract. The blocking effect of the balloon 22 can prevent the fluid from flowing back to the proximal end, improve the accuracy of treatment, and reduce the amount of fluid used.

[0042] Specific advantages: In this embodiment, the distal lumen 211 for inserting the guidewire 4 and the proximal lumen 212 for irrigation or drug administration are arranged along the length. While meeting operational requirements, compared to multi-lumen tubes with parallel lumens, the outer diameter of the catheter 2 in this embodiment can be smaller, resulting in better passage and access to finer body cavities (where the endoscope 3 may be limited by the length or outer diameter of the insertion portion). Furthermore, the inner diameter of the distal lumen 211 for inserting the guidewire 4 is larger, allowing for the passage of a thicker guidewire 4. When the catheter 2 reaches the target location along the guidewire 4, the pushing force is stronger, resulting in better passage. The proximal lumen 212 for drug administration or irrigation is thicker, allowing for a larger flow rate, which increases surgical effectiveness, reduces surgical time, and minimizes patient trauma. After inflation, the balloon 22 conforms to the body lumen 21, creating a sealing effect, preventing injected liquid / drug from flowing to non-target sites and preventing liquid / air from the distal end from interfering with the surgical outcome.

[0043] In this embodiment, the operation channels 11 of the operation mechanism 1 are configured one-to-one with the proximal working ports. For example, when it is necessary to inject or aspirate fluid into the tissue and inflate the distal balloon 22, different operation channels 11 are used to inject the medium respectively; or, at least one operation channel 11 corresponds to at least two proximal working ports, and fluid can be injected or aspirated into tissues at different locations through two distal working ports or two distal terminal working ports 2112 or one distal terminal working port 2112 and one distal working port; or, at least one of the proximal working ports corresponds to at least two operation channels 11. For example, when it is necessary to introduce a mixed medium into a lumen 21 or a sub-lumen, multiple channels need to be connected to a proximal working port first so that multiple media can be mixed in the lumen 21 or the sub-lumen.

[0044] As one implementation, in this embodiment, the operating channel 11 is coaxial with or parallel to the axis of the proximal working port; or, the operating channel 11 has an angle with the axis of the proximal working port, such as... Figures 1-3 As shown.

[0045] Any adaptive changes made according to actual needs are within the scope of protection of this invention.

[0046] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A surgical catheter treatment device, comprising: An operating mechanism having at least one operating channel; A catheter having at least one lumen, each of which has a proximal working port and a distal working port; Its features are: At least one of the lumens is divided into at least two sub-lumens arranged along the length direction, each of the sub-lumens having a near-terminal working port and a far-terminal working port; At least one proximal working port and / or at least one proximal terminal working port located on the proximal end face of the catheter are in communication with the operating channel.

2. The surgical catheter treatment device according to claim 1, characterized in that, The sub-lumen located at the distal end is called the distal terminal lumen, the sub-lumen located at the proximal end is called the proximal terminal lumen, and the sub-lumen located between the distal terminal lumen and the proximal terminal lumen is called the intermediate sub-lumen; The proximal terminal working port of the distal terminal cavity is located on its side wall, and the distal terminal working port is located on its distal end face. The distal terminal working port of the near terminal cavity is located on its side wall, and the near terminal working port is located on its proximal end face; The near-terminal working port and the far-terminal working port of the intermediate sub-cavity are both located on its side wall.

3. The surgical catheter treatment device according to claim 1, characterized in that, The orientation of the near terminal working port on the side wall of the sub-cavity is parallel to or at an angle to the orientation of the far terminal working port.

4. The surgical catheter treatment device according to claim 1, characterized in that, At least one of the lumens is divided into two or more sub-lumens in the longitudinal direction by a partition member, the two end faces of the partition member being configured as guide surfaces to facilitate the surgical instruments to reach the predetermined position and / or to guide the injection and discharge of the medium.

5. The surgical catheter treatment device according to claim 4, characterized in that, From the distal end to the proximal end, the guide surface is a gradually inclined slope or arc surface.

6. The surgical catheter treatment device according to claim 1, characterized in that, The catheter includes at least two parallel-extending lumens, with at least one lumen not being separated.

7. The surgical catheter treatment device according to claim 6, characterized in that, The distal sidewall of the catheter is provided with a cystic structure that expands after being filled with a medium, and the cystic structure is in communication with at least one of the distal working ports and / or the distal terminal working ports.

8. The surgical catheter treatment device according to claim 7, characterized in that, The cystic structure is a balloon.

9. The surgical catheter treatment device according to claim 1, characterized in that, The operation channel is configured in a one-to-one correspondence with the proximal working port; or, At least one of the operating channels corresponds to at least two of the proximal working ports; or, At least one of the proximal working ports corresponds to at least two of the operating channels.

10. The surgical catheter treatment device according to claim 9, characterized in that, The operating channel is coaxial or parallel to the axis of the near-terminal working port; or, The operating channel forms an angle with the axis of the near-terminal working port.

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