Tumor interventional therapy device
By designing deformable drainage holes and gripping plates for fixation on the drainage tube, the problems of drainage tube blockage and discomfort from external fixation are solved, thus achieving effective interventional tumor treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUNAN DEYUANHONG MEDICAL TECHNOLOGY CO LTD
- Filing Date
- 2026-04-02
- Publication Date
- 2026-05-12
AI Technical Summary
In existing interventional tumor treatment devices, the drainage tube is prone to blockage, and the external fixation measures cause great discomfort to patients, affecting the puncture and drainage effect and patient comfort.
Design a drainage tube with multiple drainage holes. The drainage tube can deform and expand to clear blockages. Combined with a gripper, it can firmly hold the skin in place, reducing the need for external fixation measures.
It effectively avoids drainage tube blockage, reduces patient discomfort, and improves the effectiveness and comfort of puncture drainage.
Smart Images
Figure CN122006066A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical device technology, and in particular to an interventional treatment device for tumors. Background Technology
[0002] Tumor interventional puncture drainage is a non-vascular interventional technique that specifically refers to the percutaneous insertion of a catheter or needle into a tumor-related lesion (such as an abscess, cyst, effusion, or necrotic tissue) under image guidance (such as ultrasound, CT, or MRI) for drainage or aspiration to relieve symptoms, control infection, or as an adjunct to treatment. It is widely used in tumor treatment, especially for patients with malignant tumors accompanied by effusion, abscess, or obstruction.
[0003] During interventional puncture and drainage of tumors, to prevent accidental slippage, displacement, or twisting of the drainage tube and to ensure drainage effectiveness, the drainage tube needs to be fixed to the body. The fixation process typically combines internal structural design with external fixation measures. Internal structural designs usually include the use of pigtail-type drainage tubes, mushroom-shaped or petal-shaped drainage tubes, balloon-type drainage tubes, etc., while external fixation measures typically include skin suture fixation, drainage tube fixation tape, adhesive tape fixation, and dressing coverage fixation. These commonly used drainage tube fixation methods have the following drawbacks: firstly, the drainage holes on the drainage tube are easily blocked, affecting the puncture and drainage process; secondly, external fixation measures can easily cause discomfort to the patient, for example, sutures can cause pain, and fixation tape can cause skin irritation and allergic reactions.
[0004] The information disclosed in the background section of this invention is intended only to enhance the understanding of the general background of this invention, and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art. Summary of the Invention
[0005] Therefore, it is necessary to provide an interventional treatment device for tumors that addresses the problems existing in current interventional treatment devices.
[0006] The above objectives are achieved through the following technical solutions: An interventional treatment device for tumors includes a drainage tube and a gripping plate disposed on the drainage tube. The drainage tube has multiple drainage holes on its side wall. After the drainage tube is punctured into the human body, drainage is performed through the drainage holes. When the drainage holes are blocked, the drainage tube can deform to enlarge the drainage holes. The gripping plate has multiple spaced gripping teeth. When the gripping plate is in contact with human skin, the gripping teeth move closer together to grip the human skin tightly.
[0007] Furthermore, after the drainage tube is punctured into the human body, it has an internal end and an external end. A lead wire is provided on the drainage tube from the internal end to the external end. When the lead wire is pulled from the external end, the drainage tube deforms.
[0008] Furthermore, the plurality of drainage holes are spaced apart along the length of the drainage tube, and the lead wire passes through the drainage tube and is located on the opposite side of the drainage hole.
[0009] Furthermore, the two adjacent drainage holes are located on both sides of the drainage tube.
[0010] Furthermore, the gripper plate is annular and sleeved on the outer end of the body, the inner side of the gripper plate is fixed to the outer end of the body, and the gripper plate can deform radially, causing the gripping teeth to move closer or further apart.
[0011] Furthermore, a winding plate is provided on the outer side of the gripper plate, and the lead wire is led out from the inner end of the body to the outer end and wound around the winding plate.
[0012] Furthermore, the drainage tube is provided with a sliding cylinder, and the lead wire is led out through the gap between the drainage tube and the sliding cylinder. When the sliding cylinder slides away from the inner end of the body, it can pull the lead wire.
[0013] Furthermore, a sealing cylinder is fixedly sleeved on the slide cylinder, and when the slide cylinder slides along the drainage tube, the sealing cylinder can pull the lead wire.
[0014] Furthermore, a reset structure is provided between the slide and the drainage tube, so that the slide tends to slide closer to the inner end of the body.
[0015] The beneficial effects of this invention are: after the drainage tube is punctured into the human body and placed into the tumor-related lesion, drainage is carried out through the drainage hole. When the drainage tube is blocked, the drainage tube can deform to enlarge the drainage hole, allowing the blockage to enter the drainage tube and be discharged, thus avoiding affecting the puncture and drainage process; the multiple gripping teeth on the gripping plate approach each other to grip the human skin, which can reduce the discomfort caused to the patient compared with other external fixation measures. Attached Figure Description
[0016] Figure 1 An isometric view of the interventional tumor treatment device provided in an embodiment of the present invention; Figure 2 for Figure 1 A partial view of the cross-sectional view of an interventional therapy device for tumors; Figure 3 for Figure 1 Front view of an interventional treatment device for tumors; Figure 4 for Figure 3 A cross-sectional view of an interventional treatment device for tumors along the AA direction; Figure 5 for Figure 4 A magnified view of a section at point B in the middle; Figure 6 for Figure 4 A magnified view of a section at point C; Figure 7 for Figure 1 Side view of an interventional treatment device for tumors; Figure 8 for Figure 7 A DD-direction cross-sectional view of an interventional treatment device for tumors. Figure 9 for Figure 8 A magnified view of a section at point E in the middle; Figure 10 for Figure 1 Exploded view of the components in an interventional treatment device for tumors after the drainage tube has been removed; Figure 11 for Figure 10 A magnified view of a gripper plate in an interventional therapy device for tumors. Figure 12 for Figure 1 A diagram showing the changes in the motion state of an interventional treatment device for tumors.
[0017] in: 100. Drainage tube; 101. Drainage hole; 102. Inner end; 103. Outer end; 104. Lead wire; 105. Outer tube; 106. Mounting ring; 107. Sliding cylinder; 108. Sealing cylinder; 109. Triangular body; 110. Upper inclined surface; 111. Lower inclined surface; 112. Ring body; 113. Ring groove; 200. Grip plate; 201. Grip teeth; 202. Winding plate; 203. Positioning ring; 204. Pressure ring; 205. Long strip hole; 206. Limiting pin; 207. Drive ring; 208. Limiting ring; 209. Gap; 210. Guide plate; 211. Guide pin. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
[0019] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.
[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0021] like Figures 1 to 12 As shown, this embodiment of the invention provides an interventional treatment device for tumors, including a drainage tube 100 and a gripping plate 200 disposed on the drainage tube 100. The drainage tube 100 has multiple drainage holes 101 on its side wall. After the drainage tube 100 is punctured into the human body, drainage is carried out through the drainage holes 101. When the drainage hole 101 is blocked, the drainage tube 100 can deform to enlarge the drainage hole 101. The gripping plate 200 has multiple spaced gripping teeth 201. When the gripping plate 200 is attached to the human skin, the gripping teeth 201 move closer to each other to grip the human skin tightly.
[0022] After the drainage tube 100 is punctured into the human body and placed into the tumor-related lesion, drainage is carried out through the drainage hole 101. When the drainage tube 100 is blocked, the drainage tube 100 can deform to enlarge the drainage hole 101, allowing the blockage to enter the drainage tube 100 and be discharged, thus avoiding affecting the puncture and drainage process. The multiple gripping teeth 201 on the gripping plate 200 approach each other to grip the human skin, which can reduce the discomfort caused to the patient compared to other external fixation measures.
[0023] The drainage tube 100 can be made of medical-grade polyurethane material, which has good tissue compatibility and a certain degree of elasticity. Multiple drainage holes 101 are provided on the drainage tube 100 to increase the drainage cross-section, reduce the probability of blockage, and avoid damage to the internal mucosa. The drainage tube 100 is visible under X-ray and other imaging equipment and has corresponding scale markings for easy determination of the insertion depth. In actual use, the drainage tube 100 can be used with chest drainage devices, negative pressure drainage balls, or negative pressure drainage devices. Furthermore, for different models of drainage tubes 100, the drainage holes 101 can have different shapes, sizes, and numbers; the drainage tube 100 can have different lengths and diameters; and the position of the gripper 200 relative to the drainage tube 100 can also be changed according to the model, allowing for the selection of different models of drainage tubes 100 for practical use.
[0024] The gripper 200 can be made of materials that have minimal impact on human skin, such as medical silicone, medical polyurethane, or hydrogel materials, with medical polyurethane being the preferred material.
[0025] The size of the gripper 201 can also be set to ensure that it has a certain gripping and adhesion force on human skin while reducing the discomfort caused to the patient's skin.
[0026] Preferably, after the drainage tube 100 is punctured into the human body, it has an internal end 102 and an external end 103. A lead wire 104 is provided on the drainage tube 100 from the internal end 102 to the external end 103. When the lead wire 104 is pulled from the external end 103, the drainage tube 100 deforms.
[0027] The lead wire 104 can be pre-embedded inside the drainage tube 100 without being exposed, so that the drainage tube 100 can be used as a single unit for puncture and drainage. Furthermore, the lead wire 104 can be made of non-absorbable materials such as polypropylene, polyester fiber, or nylon. The internal end 102 is the end of the drainage tube 100 that extends into the body, and the external end 103 is the end of the drainage tube 100 located outside the body, or close to the outside, thus facilitating differentiation and description.
[0028] Of course, other methods that can cause the drainage tube 100 to deform can also be used. For example, the drainage tube 100 can be set as a corrugated tube that can maintain a straight state by its own elasticity, with the drainage hole 101 opened at the corrugation. The corrugation size of the corrugated tube is extremely small, and a push rod is coaxially placed inside the drainage tube 100. The end of the push rod is fixed to the inner end 102 of the drainage tube 100. The push rod is pushed from the outer end 103, causing the inner end 102 to move away from the inner end 102, thereby deforming the drainage tube 100 and enlarging the drainage hole 101.
[0029] Preferably, a plurality of drainage holes 101 are spaced apart along the length of the drainage tube 100, and the lead wire 104 passes through the drainage tube 100 and is located on the opposite side of the drainage hole 101.
[0030] When the lead wire 104 is pulled from the external end 103, the side of the drainage tube 100 with the lead wire 104 contracts, and correspondingly, the side of the drainage tube 100 with the drainage hole 101 expands, so that the drainage tube 100 deforms and the drainage hole 101 expands, thereby facilitating the clearing of the drainage hole 101.
[0031] Of course, the lead wire 104 can also be set in other ways. For example, the drainage tube 100 is still a corrugated tube, the drainage hole 101 is opened at the corrugation, the lead wire 104 is located inside the drainage tube 100, and the end of the lead wire 104 is fixed to the inner end 102 of the drainage tube 100. The lead wire 104 is pulled repeatedly and quickly at the outer end 103, so that the corrugated drainage tube 100 circulates between contraction and elastic recovery, so as to squeeze out the blockage in the drainage hole 101.
[0032] Preferably, two adjacent drainage holes 101 are located on both sides of the drainage tube 100.
[0033] When the lead wire 104 is pulled from the external end 103, the drainage tube 100 undergoes an S-shaped bending deformation.
[0034] The plane passing through the axis of the drainage tube 100 is the center plane, and two adjacent drainage holes 101 are located on opposite sides of the center plane. In other words, the drainage holes 101 are staggered on the drainage tube 100. For example, see [reference needed]. Figure 8 From the inner end 102 to the outer end 103, i.e., from top to bottom, the positions of the drainage holes 101 on the left side of the drainage tube 100 are 1, 3, and 5, respectively, and the positions of the drainage holes 101 on the right side of the drainage tube 100 are 2, 4, and 6, respectively. The lead wire 104 is configured as follows: the upper end of the lead wire 104 is fixed to the upper end of the drainage tube 100, i.e., outside the inner end 102. After being led out, it wraps around to the right side of drainage hole 101, passes through the drainage tube 100, wraps around to the left side of drainage hole 2 101, passes through the drainage tube 100 again, wraps around to the right side of drainage hole 3 101, and so on, until the lower end of the lead wire 104 exits the drainage tube 100. Using the above configuration of the drainage holes 101 and lead wire 104, when the lead wire 104 is pulled downwards, the drainage tube 100 produces the following... Figure 11 The S-shaped bending deformation shown specifically involves the contraction of the side of the drainage tube 100 with the lead wire 104, and the expansion of the side of the drainage tube 100 with the drainage hole 101. That is, the positions of drainage holes 1 to 6 are all expanded, thereby enlarging the drainage hole 101 and facilitating the clearing of the drainage hole 101.
[0035] As a structural variation of the present invention, two adjacent drainage holes 101 are located on the same side of the drainage tube 100.
[0036] When the lead wire 104 is pulled from the external end 103, the drainage tube 100 undergoes a pig-tail-like bending deformation.
[0037] For example, drainage holes 1 to 6 101 are all located on the left side of the drainage tube 100. The upper end of the lead wire 104 is fixed to the upper end of the drainage tube 100, i.e., outside the inner end 102. After being led out, it passes directly through the right side of drainage hole 6 101, and then the lower end of the lead wire 104 exits the drainage tube 100. With the above arrangement of drainage holes 101 and lead wire 104, when the lead wire 104 is pulled down, the drainage tube 100 undergoes a pig-tail-like bending deformation. Specifically, the left side of the drainage tube 100 expands, and the right side of the drainage tube 100 contracts, thereby causing the drainage tube 100 to bend in one direction, that is, the drainage hole 101 on the left side expands, which facilitates the clearing of the drainage hole 101.
[0038] Preferably, the gripper 200 is annular and sleeved on the outer end 103. The inner side of the gripper 200 is fixed to the outer end 103. The gripper 200 can deform along its radial direction, so that the gripping teeth 201 move closer or further apart.
[0039] The gripper 200 deforms, causing the gripper teeth 201 to come closer together to grip the skin. Compared to other external fixation methods, this reduces patient discomfort, such as pain caused by sutures, skin irritation caused by fixation tape, and allergic reactions. Furthermore, a smaller gripper 200 is sufficient to achieve secure fixation to the skin, reducing the contact area and further alleviating discomfort.
[0040] Of course, the gripper 200 can also be other shapes, such as square, oval, etc., and the direction of deformation of the gripper 200 is not limited here, as long as the gripper teeth 201 can be brought closer or further apart.
[0041] Preferably, a winding plate 202 is provided on the outer side of the gripper 200, and the lead wire 104 is led out from the inner end 102 to the outer end 103 and wound on the winding plate 202.
[0042] After the skin is gripped firmly by the gripper 200, the outer end of the lead 104 is wound around the winding plate 202. At this point, the outer end of the lead 104 can be fixed by the friction between the leads 104, or it can be fixed by tying a knot relative to the winding plate 202. Furthermore, since the amount of fluid in each patient's body varies, the required drainage speed also differs. Therefore, before fixing the outer end of the lead 104, the lead 104 can be pulled to deform the drainage tube 100, adjusting the drainage hole 101 to a suitable size to accommodate individual patient differences.
[0043] For ease of description, the interventional treatment devices for tumors in the attached diagrams are all positioned vertically, with the internal end 102 of the drainage tube 100 at the top and the external end 103 at the bottom. See also Figure 2 , Figure 5 , Figure 10 , Figure 11 The lower end of the drainage tube 100 has an outer tube 105, the lower end of which is the outer end 103 of the drainage tube 100. The outer tube 105 is made of rigid material and cannot deform, so as to better support the drainage tube 100. The gripping plate 200 is a conical ring structure with a larger upper surface and a smaller lower surface. That is, the side of the gripping plate 200 near the drainage tube 100 is concave, and the gripping teeth 201 are ring-shaped and formed on the concave surface. There are gaps between adjacent gripping teeth 201 to grip the skin tightly.
[0044] An installation ring 106 is formed at the end of the outer tube 105. The inner side of the gripping plate 200 is fixed to the installation ring 106. Specifically, the gripping plate 200 has a positioning ring 203 formed outward from the inner side. The positioning ring 203 and the surface of the installation ring 106 are in contact with each other. The positioning ring 203 and the installation ring 106 are fixed by the pressure ring 204 and screws, thereby fixing the inner side of the gripping plate 200 to the installation ring 106. Of course, fixing glue can also be used for fixing.
[0045] The winding plate 202 is also a conical ring structure with a smaller top and a larger bottom, and it also has a certain degree of elasticity. The inner side of the winding plate 202 is fixed to the outer side of the gripper plate 200. The middle part of the winding plate 202 has elongated holes 205 at the top and bottom. The elongated holes 205 are provided with limiting pins 206, which are fixed to the mounting ring 106. The winding plate 202 is covered with a driving ring 207, which can move up and down along the winding plate 202 with the conical ring structure. As the drive ring 207 moves downward along the winding plate 202, the lower end of the winding plate 202 gradually shrinks and the upper end gradually expands due to the limiting pin 206 and the elongated hole 205. This pulls the outer side of the gripper plate 200, causing it to expand. In other words, the gripper plate 200 deforms radially. At this time, the gripping teeth 201 move away from each other. After the gripper plate 200 is in contact with the human skin, the drive ring 207 moves upward, and the gripping teeth 201 move closer together to grip the human skin. Limiting rings 208 are formed at both the upper and lower ends of the winding plate 202 to prevent the drive ring 207 from slipping off from the upper or lower end of the winding plate 202.
[0046] In addition, after the gripper 200 grips the human skin, the lead wire 104 is led out and wound around the winding plate 202. The specific winding position can be between the drive ring 207 and the upper limit ring 208.
[0047] To facilitate the overall deformation of the gripper plate 200 and the winding plate 202, they need to be separated. Specifically, the gripper plate 200 and the winding plate 202 are divided into multiple equally sized components along their circumference, with gaps 209 between each component. This allows for sufficient deformation play when the gripper plate 200 and the winding plate 202 deform radially, preventing motion interference. Simultaneously, the presence of gaps 209 reduces the impact on skin respiration when the gripper plate 200 grips the skin. Correspondingly, the limiting ring 208 also has gaps 209. The pressure ring 204 is provided with guide plates 210 corresponding to the gaps 209, ensuring that the gripper plate 200, the winding plate 202, and the limiting ring 208 all deform radially. The inner wall of the drive ring 207 is provided with a guide pin 211. When the drive ring 207 moves along the winding plate 202, the guide pin 211 slides along the gap 209 to limit the movement of the drive ring 207.
[0048] Of course, other methods that allow the gripper 200 to deform radially can also be used. For example, the outer side of the gripper 200 can be pulled directly to expand it. After the gripper 200 is attached to the human skin, the pulling of the gripper 200 can be stopped, and it will grip the human skin tightly under its own elasticity.
[0049] Preferably, the drainage tube 100 is provided with a slide cylinder 107, and the lead wire 104 is led out through the gap between the drainage tube 100 and the slide cylinder 107. When the slide cylinder 107 slides away from the end 102 inside the body, it can pull the lead wire 104.
[0050] The slide tube 107 is slidably disposed at the lower end of the drainage tube 100 and inside the outer tube 105. The inner walls of the drainage tube 100 and the outer tube 105 are coated with a smooth material, such as polytetrafluoroethylene or silicone, which can reduce the friction between the drainage tube 100, the outer tube 105 and the lead wire 104, and at the same time have high chemical stability, reducing bacterial growth.
[0051] Preferably, a sealing cylinder 108 is fixedly sleeved on the slide cylinder 107. When the slide cylinder 107 slides along the drainage pipe 100, the sealing cylinder 108 can pull the lead wire 104.
[0052] The sealing cylinder 108 enables the slide cylinder 107 to slide in a sealed manner within the drainage tube 100. At the same time, when the slide cylinder 107 slides along the drainage tube 100, the sealing cylinder 108 can enhance the friction between itself and the lead wire 104, thereby making it easier to pull the lead wire 104.
[0053] The sealing cylinder 108 can be made of polyurethane or silicone, and its outer surface has spaced sealing rings. The outer surface of the sealing rings can be embossed or textured to enhance the friction between them and the lead wire 104. The outer diameter of the sealing rings is equal to the inner wall of the drainage tube 100 and the outer tube 105.
[0054] Preferably, a reset structure is provided between the slide cylinder 107 and the drainage tube 100, so that the slide cylinder 107 has a tendency to slide closer to the inner end 102 of the body.
[0055] The reset structure can be a triangular body 109. The triangular body 109 is close to the lower end of the winding plate 202 and is integrally formed with the winding plate 202. The upper and lower sides of the triangular body 109 are respectively formed with an upper inclined surface 110 and a lower inclined surface 111. The upper inclined surface 110 is inclined from top to bottom and from outside to inside, and the lower inclined surface 111 is inclined from top to bottom and from inside to outside. A ring 112 is formed on the slide cylinder 107. The upper surface of the ring 112 can fit and seal against the lower surface of the mounting ring 106. The outer edge of the ring 112 can slide along the upper inclined surface 110 and the lower inclined surface 111. When the ring 112 slides from top to bottom along the upper inclined surface 110, the slide cylinder 107 can pull the lead wire 104 to deform the drainage tube 100. At the same time, because the winding plate 202 is elastic, it can reset the sliding of the ring 112 and the slide cylinder 107, that is, the ring 112 and the slide cylinder 107 can slide upward. When the ring 112 slides from bottom to top along the lower inclined surface 111, it is convenient to guide the installation of the ring 112 and the slide cylinder 107. In addition, an annular groove 113 is formed at the connection of the upper inclined surface 110 and the lower inclined surface 111 to limit the ring 112 and the slide cylinder 107 when sliding downward, so as to prevent them from sliding out directly.
[0056] In addition, after the gripper 200 grips the human skin, the lead wire 104 is led out from between the drainage tube 100, the outer tube 105 and the sealing cylinder 108, then led out from between the mounting ring 106 and the ring body 112, then passed through the gap 209, and finally wound around the winding plate 202.
[0057] This invention involves inserting a drainage tube 100 into the human body and placing it into the tumor-related lesion. The drive ring 207 is manually moved along the winding plate 202 away from the drainage tube 100. Due to the limiting effect of the limiting pin 206 and the elongated hole 205, the lower end of the winding plate 202 gradually narrows while the upper end gradually expands, pulling the outer side of the gripping plate 200 to expand it. That is, the gripping plate 200 deforms radially, causing the gripping teeth 201 to move away from each other. After the gripping plate 200 adheres to the human skin, the drive ring 207 moves upward, and the gripping teeth 201 move closer together to grip the human skin. Compared to other external fixation measures, this reduces patient discomfort, such as pain caused by sutures, skin discomfort caused by fixation patches, and allergic reactions.
[0058] The lead wire 104 is threaded from the internal end 102 to the external end 103. See [reference needed]. Figure 8 , Figure 9The end of the lead wire 104 is led out from between the drainage tube 100, the outer tube 105, and the sealing cylinder 108, then from between the mounting ring 106 and the ring body 112, passes through the gap 209, and finally wraps around the winding plate 202. Specifically, the end of the lead wire 104 is wrapped between the drive ring 207 and the upper limiting ring 208. At this time, the outer end of the lead wire 104 can be fixed by the friction between the lead wires 104, or the outer end of the lead wire 104 can be knotted relative to the winding plate 202 to fix the outer end of the lead wire 104. In addition, since the amount of fluid in each patient's body is different, the required drainage speed is also different. Therefore, before fixing the outer end of the lead wire 104, the end of the lead wire 104 can be pulled to make the drainage tube 100 produce an S-shaped deformation to adjust the drainage hole 101 to a suitable size, thereby adapting to the individual differences of the patients.
[0059] Drainage can then be performed through the drainage hole 101. When the drainage tube 100 is blocked, the sliding cylinder 107 is pulled to move along the drainage tube 100 away from the end 102 inside the body. Since the inner walls of the drainage tube 100 and the outer tube 105 are relatively smooth, and the friction between the outer wall of the sealing cylinder 108 and the lead wire 104 is relatively large, the sliding cylinder 107 pulls the lead wire 104 through the sealing cylinder 108, so that the drainage tube 100 can produce an S-shaped deformation, thereby expanding the drainage hole 101, allowing the blockage to enter the drainage tube 100 and be discharged, thus avoiding affecting the puncture and drainage process.
[0060] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0061] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.
Claims
1. An interventional treatment device for tumors, characterized in that, The device includes a drainage tube and a gripping plate disposed on the drainage tube. The drainage tube has multiple drainage holes on its side wall. After the drainage tube is punctured into the human body, drainage is carried out through the drainage holes. When the drainage holes are blocked, the drainage tube can deform to enlarge the drainage holes. The gripping plate has multiple spaced gripping teeth. When the gripping plate is in contact with human skin, the gripping teeth move closer to each other to grip the human skin tightly.
2. The interventional tumor treatment device according to claim 1, characterized in that, After the drainage tube is punctured into the human body, it has an internal end and an external end. A lead wire is provided on the drainage tube from the internal end to the external end. When the lead wire is pulled from the external end, the drainage tube deforms.
3. The interventional tumor treatment device according to claim 2, characterized in that, The plurality of drainage holes are spaced apart along the length of the drainage tube, and the lead wire passes through the drainage tube and is located on the opposite side of the drainage hole.
4. The interventional tumor treatment device according to claim 3, characterized in that, The two adjacent drainage holes are located on both sides of the drainage tube.
5. The interventional tumor treatment device according to claim 3, characterized in that, The two adjacent drainage holes are both located on the same side of the drainage tube.
6. The interventional tumor treatment device according to any one of claims 2-5, characterized in that, The gripper plate is annular and sleeved on the outer end of the body. The inner side of the gripper plate is fixed to the outer end of the body. The gripper plate can deform radially, causing the gripping teeth to move closer or further apart.
7. The interventional tumor treatment device according to claim 6, characterized in that, The outer side of the gripper is provided with a winding plate, and the lead wire is led out from the inner end of the body to the outer end and then wound around the winding plate.
8. The interventional tumor treatment device according to claim 6, characterized in that, The drainage tube is equipped with a sliding cylinder. The lead wire is led out through the gap between the drainage tube and the sliding cylinder. When the sliding cylinder slides away from the inner end of the body, it can pull the lead wire.
9. The interventional tumor treatment device according to claim 8, characterized in that, A sealing cylinder is fixedly sleeved on the slide cylinder. When the slide cylinder slides along the drainage tube, the sealing cylinder can pull the lead wire.
10. The interventional tumor treatment device according to claim 8, characterized in that, A reset structure is provided between the slide and the drainage tube, which gives the slide a tendency to slide closer to the inner end of the body.