Lymphatic drainage device and system

Abstract

The present invention provides a lymphatic drainage device and system. The lymphatic drainage device includes: a drainage tube, a connecting tube and a guide needle. The drainage tube is configured so that lymphatic fluid flows unidirectionally in the drainage tube; the rear end of the connecting tube is fixedly connected to the front end of the drainage tube, the rear end of the guide needle is connected to the front end of the connecting tube, the front end of the guide needle is a needle section, and the guide needle is configured to guide the drainage tube to reach a target position. The lymphatic drainage system includes a lymphatic drainage device and a guide forceps that clamps the needle section of the guide needle or the drainage tube. The lymphatic drainage device of the present invention is surgically implanted into the patient's neck or limbs, and utilizes the pressure difference between the inside and outside of the drainage tube to make the liquid flow into the drainage tube and flow unidirectionally along the drainage tube, so that the drainage tube replaces the function of the lymphatic vessel, completes the transportation of lymphatic fluid, solves the problem of lymphatic congestion and retention in patients, inhibits the occurrence of complications such as inflammation and hyperplasia, and improves the patient's edema symptoms.

Description

Technical Field

[0001] The present invention belongs to the technical field of lymphatic drainage, and in particular relates to a lymphatic drainage device and system. Background Art

[0002] Lymphedema refers to the proliferation of subcutaneous fibrous connective tissue and hardening of fat due to repeated infection of soft tissue fluid on the body surface caused by obstruction of lymph flow in certain parts of the body. If it is a limb, it will become thicker. In the later stage, the skin will become thicker, rough and tough like elephant skin, also known as "elephanthiosis".

[0003] At present, there are few treatments for lymphedema, and none of them can cure it; most non-surgical methods can only temporarily relieve symptoms and must be maintained continuously, and auxiliary equipment that can be used are mostly massage devices, which still cannot solve the long-term maintenance problem; surgical methods have better clinical effects, but their applicability is narrow and the technical requirements are high, and they cannot replace non-surgical methods to become the mainstream.

[0004] Therefore, how to provide a lymphatic drainage device that can solve the problem of lymphatic congestion and retention in patients, inhibit the occurrence of complications such as inflammation and hyperplasia, and improve the edema symptoms of patients is an urgent problem that needs to be solved by technical personnel in this field. Summary of the invention

[0005] In response to the above technical problems, the present invention provides a lymphatic drainage device and system to solve the problem of lymphatic congestion and retention in patients, inhibit the occurrence of complications such as inflammation and hyperplasia, and improve patients' edema symptoms.

[0006] To achieve the above object, the technical solution of the present invention is:

[0007] In one aspect, the present invention provides a lymphatic drainage device, comprising:

[0008] a drainage tube, wherein the drainage tube is configured so that lymph fluid flows unidirectionally in the drainage tube;

[0009] A connecting tube, the rear end of which is fixedly connected to the front end of the drainage tube,

[0010] A guide needle, the rear end of which is connected to the front end of the connecting tube, the front end of which is a needle section, and the guide needle is configured to guide the drainage tube to a target position.

[0011] In a preferred embodiment, the cross-sectional structure of the drainage tube includes a first support column, a second support column and a connecting column, the first support column and the second support column are arranged in parallel, and the connecting column is arranged between the first support column and the second support column;

[0012] Both ends of the first support column and the second support column extend toward the direction close to the connecting column to form a first extension arm, and the two first extension arms at the same end of the first support column and the second support column form a first cavity with the connecting column, and the two first extension arms at the same end of the first support column and the second support column are not connected;

[0013] The two ends of the first support column and the second support column respectively extend in a direction away from the connecting column to form second extension arms, the second extension arms formed by extending from the two ends of the first support column form a second cavity with the first support column, the second extension arms formed by extending from the two ends of the second support column form a second cavity with the second support column, and the two second extension arms formed by extending from the two ends of the first support column are not connected to each other, and the two second extension arms formed by extending from the two ends of the second support column are not connected to each other.

[0014] In a preferred embodiment, anti-adhesion protrusions are provided on the connecting pillars along the circumference of the connecting pillars.

[0015] In a preferred embodiment, a developing line is provided at the end of the first supporting column and / or the second supporting column.

[0016] In a preferred embodiment, the drainage tube comprises a closed section, a changing section and an open section which are connected in sequence, and the closed section is located at the rear end of the drainage tube.

[0017] In a preferred embodiment, the cross-sectional structures of the closed section and the open section each include a first support column, a second support column and a connecting column, the first support column and the second support column are arranged in parallel, and the connecting column is arranged between the first support column and the second support column;

[0018] Both ends of the first support column and the second support column extend toward the connecting column to form a first extension arm, and the two first extension arms at the same end of the first support column and the second support column form a first cavity with the connecting column;

[0019] The two ends of the first support column and the second support column respectively extend in a direction away from the connecting column to form a second extension arm, the second extension arm formed by the two ends of the first support column and the first support column form a second cavity, and the second extension arm formed by the two ends of the second support column and the second support column form a second cavity;

[0020] The closed section: the two first extension arms at the same end of the first support column and the second support column are connected; the two second extension arms formed by extending from both ends of the first support column are connected; and the two second extension arms formed by extending from both ends of the second support column are connected;

[0021] The open section: the two first extension arms at the same end of the first support column and the second support column are not connected; the two second extension arms formed by extending from both ends of the first support column are not connected, and the two second extension arms formed by extending from both ends of the second support column are not connected.

[0022] In a preferred embodiment, in the closed section, the first extension arm connected at the same end of the first support column and the second support column is provided with a drainage gap, and the two second extension arms connected at both ends of the first support column and the two second extension arms connected at both ends of the second support column are provided with drainage gaps, and the drainage gap is V-shaped from the outside of the tube to the inner wall of the tube.

[0023] In a preferred embodiment, anti-adhesion protrusions are provided on the connecting pillars along the circumference of the connecting pillars.

[0024] In a preferred embodiment, a developing line is provided at the end of the first supporting column and / or the second supporting column.

[0025] In a preferred embodiment, the guide needle comprises an anti-slip section, a first needle section, a second needle section and the needle head section which are connected in sequence, the anti-slip section is inserted into the front end of the connecting end, and the inner diameter of the first needle section is larger than the inner diameter of the connecting tube.

[0026] In a preferred embodiment, the needle segment has a groove that cooperates with the guide forceps, and the groove is arranged along the circumference of the needle segment.

[0027] In a preferred embodiment, the groove is connected to the rear end of the needle section by an inclined transition.

[0028] In a preferred embodiment, the second needle section is detachably connected to the needle head section.

[0029] In a preferred embodiment, the needle section is shaped like a cylindrical round head or a conical round head.

[0030] Based on the same inventive concept, the second aspect of the present invention provides a lymphatic drainage system, comprising the lymphatic drainage device and a guide forceps as described in the first aspect, wherein the guide forceps is configured to clamp the needle section of the guide needle or the drainage tube.

[0031] In a preferred embodiment, an opening is provided on the guide forceps, the diameter of the opening is smaller than the diameter of the drainage tube, and a slot is provided at the opening, and the slot is adapted to the groove of the needle section.

[0032] Due to the adoption of the above technical solution, the present invention has the following advantages and positive effects compared with the prior art:

[0033] The present invention discloses a lymphatic drainage device, wherein the guide needle has a needle section, which helps the drainage tube at the rear end to penetrate into the subcutaneous tissue, so that the drainage tube is implanted at the target position, such as the neck or limbs, so that the drainage tube becomes a bridge between the lymphatic lesion and the normal tissue. Then, the pressure difference between the inside and outside of the drainage tube at the lymphatic lesion causes the liquid to flow into the drainage tube and flow unidirectionally along the drainage tube. At the same time, MLD techniques such as massage are used after surgery to promote the flow of the liquid, so that the drainage tube replaces the function of the lymphatic vessel, completes the transportation of lymph fluid, solves the problem of lymphatic stasis and retention in patients, inhibits the occurrence of complications such as inflammation and hyperplasia, and improves the patient's edema symptoms. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0035] Figure 1 This is a schematic diagram of the structure of the lymphatic drainage device according to Example 1 of the present invention;

[0036] Figure 2 This is a schematic diagram of the structure of the lymphatic drainage device according to Example 1 of the present invention;

[0037] Figure 3 is a schematic cross-sectional view of a closed section of a guide tube according to Embodiment 2 of the present invention;

[0038] Figure 4 Schematic diagram of the cross section of the guide tube of Example 2 and the guide tube of Example 1 of the present invention;

[0039] Figure 5 This is a schematic structural diagram of a guide needle according to Embodiment 1 of the present invention;

[0040] Figure 6 It is an exploded schematic diagram of the second needle segment and the needle head segment of Example 1 of the present invention;

[0041] Figure 7 This is a schematic diagram of the structure of a needle segment with a straight round head according to Example 1 of the present invention;

[0042] Figure 8 This is a schematic diagram of the structure of a needle section with a tapered round head according to Example 1 of the present invention;

[0043] Fig. 9 This is a schematic diagram of the structure of a needle segment with a hollow straight round head according to Example 1 of the present invention;

[0044] Fig.10This is a schematic diagram of the structure of a needle section with a hollow conical round head according to Example 1 of the present invention;

[0045] Fig.11 It is a structural schematic diagram of the guiding forceps of Example 3 of the present invention;

[0046] Figures 12A-12E This is a specific operation diagram of Application Example 4 provided by the present invention.

[0047] Explanation of the reference numerals: 1-drainage tube; 11-closed section; 12-transformation section; 13-open section; 20-first support column; 21-second support column; 22-connecting column; 23-anti-adhesion protrusion; 24-first extension arm; 25-first cavity; 26-second extension arm; 27-second cavity; 3-connecting tube; 4-guide needle; 41-anti-slip section; 42-first needle section; 43-second needle section; 44-needle section; 45-groove; 5-guide forceps; 51-opening; 52-card slot; 6-development line; 7-drainage gap. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Example 1

[0050] See also Figure 1-2 , a lymphatic drainage device, comprising:

[0051] A drainage tube 1, wherein the drainage tube 1 is configured so that lymph fluid flows in one direction in the drainage tube 1;

[0052] The connecting tube 3 has a rear end fixedly connected to the front end of the drainage tube 1.

[0053] The guide needle 4 has a rear end connected to the front end of the connecting tube 3 , and the front end of the guide needle 4 is a needle section 44 . The guide needle 4 is configured to guide the drainage tube 1 to reach the target position.

[0054] The needle section 44 of the guide needle 4 punctures into the skin tissue, and the guide needle 4 is implanted into the skin tissue with the drainage tube 1 until the drainage tube 1 reaches the target position, so the front end of the drainage tube 1, the front end of the connecting tube 3, and the front end of the guide needle 4 are the forward direction of the lymphatic drainage device, and the rear end of the drainage tube 1, the rear end of the connecting tube 3, and the rear end of the guide needle 4 are the rear end of the forward direction of the lymphatic drainage device. The connecting tube 3 is used to connect the drainage tube 1 and the guide needle 4. The needle section 44 of the guide needle 4 is round in front and flat in the back, and the front section is small, which is convenient for puncture.

[0055] After the drainage tube 1 reaches the target position, the guide needle 4 and the connecting tube 3 are cut off, and the drainage tube 1 is retained to build a bridge between the lymphatic lesion and the normal tissue. Then there is a pressure difference between the inside and outside of the drainage tube 1 at the lymphatic lesion, so that the lymph fluid flows into the drainage tube 1 and flows unidirectionally along the drainage tube 1, so that the drainage tube 1 replaces the function of the lymphatic vessel, completes the transportation of the lymph fluid, solves the problem of lymphatic stagnation and retention in patients, inhibits the occurrence of complications such as inflammation and hyperplasia, and improves the patient's edema symptoms.

[0056] Specifically, Figure 4 As shown, the cross-sectional structure of the drainage tube 1 includes a first support column 20, a second support column 21 and a connecting column 22, the first support column 20 and the second support column 21 are arranged in parallel, and the connecting column 22 is arranged between the first support column 20 and the second support column 21;

[0057] Both ends of the first support column 20 and the second support column 21 extend toward the direction close to the connecting column 22 to form a first extension arm 24. The two first extension arms 24 at the same end of the first support column 20 and the second support column 21 form a first cavity 25 with the connecting column 22, and the two first extension arms 24 at the same end of the first support column 20 and the second support column 21 are not connected.

[0058] The two ends of the first support column 20 and the second support column 21 respectively extend in the direction away from the connecting column 22 to form a second extension arm 26. The second extension arms 26 formed by extending from the two ends of the first support column 20 form a second cavity 27 with the first support column 20. The second extension arms 26 formed by extending from the two ends of the second support column 21 form a second cavity 27 with the second support column 21. The two second extension arms 26 formed by extending from the two ends of the first support column 20 are not connected to each other, and the two second extension arms 26 formed by extending from the two ends of the second support column 21 are not connected to each other.

[0059] It can be seen that the drainage tube 1 has a first cavity 25 and a second cavity 27, and lymph flows unidirectionally in the first cavity 25 and the second cavity 27. Moreover, since the two opposing first extension arms 24 extending from the first support column 20 and the second support column 21 are not connected, and the two opposing second extension arms 26 located on both sides of the first support column 20 and the second support column are not connected, it means that there is a gap in the axial direction of the guide tube, and the first cavity 25 and the second cavity 27 inside the drainage tube 1 are connected to the outside. The purpose of setting up this structure is to enable the lymph to smoothly enter the two cavities in the drainage tube 1 when the drainage tube 1 is at the lymphatic lesion site, and the lymph can also flow out of the drainage tube 1 normally when the guide tube is at the normal tissue.

[0060] Further preferably, the outer surfaces of the first extension arm 24 and the second extension arm 26 forming the body of the drainage tube 1 are slightly recessed toward the inside of the tube. At this time, the ends of the first support column 20 and the second support column 21 are the most protruding positions on the surface of the body of the drainage tube 1, so that the recessed space between the ends of the first support column 20 and the second support column 21 at the same end forms a drainage space, and the recessed space formed by the second extension arm 26 on both sides of the first support column 20 and the second support column 21 forms a drainage space. When the drainage tube 1 moves, the ends of the first support column 20 and the second support column 21 become the main force points of the tube body, which can effectively prevent the drainage space from closing (the tissue fits the body of the drainage tube 1, causing the drainage space to close), reduce the distortion and skewness of the body of the drainage tube 1, and thus improve the drainage efficiency and comfort of use.

[0061] In order to prevent the drainage tube 1 from being pressed and stuck due to long-term retention, an anti-sticking protrusion 23 is provided on the connecting column 22 along the circumference of the connecting column 22 to reduce the contact surface between the tube bodies.

[0062] Furthermore, a developing line 6 is provided at the end of the first supporting column 20 and / or the second supporting column 21. By providing the developing line 6 to penetrate the entire axial direction of the drainage tube 1, it is convenient to remove the drainage tube 1 in the future.

[0063] In some embodiments, Figure 2 , 5 As shown, the guide needle 4 includes an anti-slip segment 41, a first needle segment 42, a second needle segment 43 and a needle segment 44 which are connected in sequence. The inner diameter of the anti-slip segment 41 is smaller than the inner diameter of the connecting tube 3. The anti-slip segment 41 is inserted into the front end of the connecting end to prevent the guide needle 4 from falling off the connecting tube 3. The inner diameter of the first needle segment 42 is larger than the inner diameter of the connecting tube 3, which can widen the passage, avoid exposing the cross section of the connecting tube 3, and reduce the obstruction of the drainage tube 1 to penetrate.

[0064] Furthermore, during the implantation process, if the lymphatic drainage device of the present embodiment encounters an obstacle and is difficult to continue placing, the body surface at that location is cut open to expose the needle head section 44 of the guide needle 4, and the guide forceps 5 clamp the guide needle 4 and pull it out, and then reinsert the guide needle 4 from here. Therefore, the needle head section 44 has a groove 45 that cooperates with the guide forceps 5. The groove 45 is arranged along the circumference of the needle head section 44. The groove 45 is provided for the guide forceps 5 to complete the grip, making it convenient for the guide forceps 5 to clamp the needle head section 44.

[0065] Furthermore, if Figure 6 As shown, the groove 45 is connected with the rear end of the needle section 44 in an inclined transition manner. When the guide forceps 5 are used to clamp the needle section 44, the needle body of the needle section 44 is deformed accordingly, which is convenient for clamping and force bearing.

[0066] Preferably, if Figure 6As shown, the second needle segment 43 and the needle segment 44 are detachably connected, so that the needle segment 44 can be easily replaced. When puncturing again, a new needle segment 44 can be replaced for puncture. For example, the second needle segment 43 and the needle segment 44 are threadedly connected.

[0067] like Figure 7 and Figure 8 As shown, in the present embodiment, the needle section 44 is shaped like a cylindrical round head or a conical round head, and the cylindrical round head or the conical round head is set to be solid, and the groove 45 is not set on the needle section 44 set to be a cylindrical round head or a conical round head; when the needle section 44 is set to be a cylindrical round head, the damage is minimal, and this needle can be used when there are physiological structures near the puncture site that need to be protected from damage; when the needle section 44 is set to be a conical round head, the needle diameter gradually decreases from the front end to the rear end, and the contact area is smaller and the pressure is greater than other needles. This needle can be used when the puncture resistance is large.

[0068] In addition, as shown in Figures 9 and 10, in this embodiment, the needle section 44 is configured as a cylindrical round head or a conical round head, and the cylindrical round head and the conical round head are configured as internal hollow structures. The solid cylindrical round head and the conical round head can be deformed by the guide forceps 5 due to their soft material, and the cylindrical round head and the conical round head with an internal hollow structure have higher hardness, but can also be deformed by the guide forceps 5 due to their internal hollowness.

[0069] The drainage tube 1 is ultra-slip and antibacterial treated to enhance comfort and avoid postoperative infection.

[0070] Example 2

[0071] In this embodiment, the connecting tube 3 and the guide needle 4 are the same as those in the first embodiment, but the structure of the drainage tube 1 is different from that in the first embodiment.

[0072] In this embodiment, if Figure 2 As shown, the drainage tube 1 includes a closed section 11, a changing section 12 and an open section 13 which are connected in sequence. The closed section 11 is located at the rear end of the drainage tube 1. The wall thickness of the closed section 11 and the open section 13 is greater than the wall thickness of the changing section 12 to reduce the deformation of the drainage tube 1. The changing section 12 is used to connect the closed section 11 and the open section 13.

[0073] Specifically, Figure 3 and Figure 4 The cross-sectional structures of the closed section 11 and the open section 13 both include a first support column 20, a second support column 21 and a connecting column 22. The first support column 20 and the second support column 21 are arranged in parallel, and the connecting column 22 is arranged between the first support column 20 and the second support column 21 to form an H shape;

[0074] Both ends of the first support column 20 and the second support column 21 extend toward the direction close to the connecting column 22 to form a first extension arm 24, and the two first extension arms 24 at the same end of the first support column 20 and the second support column 21 form a first cavity 25 with the connecting column 22;

[0075] The two ends of the first support column 20 and the second support column 21 extend in a direction away from the connecting column 22 to form a second extension arm 26. The second extension arm 26 extending from the two ends of the first support column 20 and the first support column 20 form a second cavity 27. The second extension arm 26 extending from the two ends of the second support column 21 and the second support column 21 form a second cavity 27.

[0076] Closed section 11: two first extension arms 24 at the same end of the first support column 20 and the second support column 21 are connected; two second extension arms 26 extending from both ends of the first support column 20 are connected; and two second extension arms 26 extending from both ends of the second support column 21 are connected;

[0077] Open section 13: the two first extension arms 24 at the same end of the first support column 20 and the second support column 21 are not connected; the two second extension arms 26 extending from both ends of the first support column 20 are not connected, and the two second extension arms 26 extending from both ends of the second support column 21 are not connected.

[0078] Thus, the first extension arm 24 and the second extension arm 26 constitute the tube body of the drainage tube 1, the first cavity 25 and the second cavity 27 form the internal cavity of the drainage tube 1, the closed section 11 forms the first cavity 25 and the second cavity 27 closed inside the tube body, and the open section 13 is not connected to the two first extension arms 24 forming the first cavity 25, and the two second extension arms 26 forming the second cavity 27 are not connected, so that the first cavity 25 and the second cavity 27 are connected to the outside of the tube. This is because the rear end of the drainage tube 1 is usually implanted in a lymphatic lesion, where lymphatic fluid is blocked or retained, and the pressure outside the drainage tube 1 is greater than that inside the tube. Therefore, it is preferred to use a closed drainage tube 1 here, and the front end of the drainage tube 1 is usually implanted in normal tissue, where the lymphatic system returns normally. It is necessary to connect the lesion where lymphatic fluid is blocked with the normal tissue through the drainage tube 1 to achieve drainage of the lymphatic fluid. Therefore, in a normal place, the lymphatic fluid in the drainage tube 1 can flow out, and it is preferred to use an open drainage tube 1.

[0079] Further preferably, the outer surfaces of the first extension arm 24 and the second extension arm 26 forming the body of the drainage tube 1 are slightly recessed toward the inside of the tube. At this time, the ends of the first support column 20 and the second support column 21 are the most protruding positions on the surface of the body of the drainage tube 1, so that the recessed space between the ends of the first support column 20 and the second support column 21 at the same end forms a drainage space, and the recessed space formed by the second extension arm 26 on both sides of the first support column 20 and the second support column 21 forms a drainage space. When the drainage tube 1 moves, the ends of the first support column 20 and the second support column 21 become the main force points of the tube body, which can effectively prevent the drainage space from closing (the tissue fits the body of the drainage tube 1, causing the drainage space to close), reduce the distortion and skewness of the body of the drainage tube 1, and thus improve the drainage efficiency and comfort of use.

[0080] Preferably, in the closed section 11, the first extension arm 24 connected at the same end of the first support column 20 and the second support column 21 is provided with a drainage gap 7, and the two second extension arms 26 connected at both ends of the first support column 20 and the two second extension arms 26 connected at both ends of the second support column 21 are provided with a drainage gap 7, and the drainage gap 7 is V-shaped from the outside of the tube to the inner wall of the tube. Since the first extension arm 24 extends toward the direction close to the connecting column 22, the ends of the first support column 20 and the second support column 21 are the most protruding positions on the surface of the drainage tube 1, and the first extension arm 24 and the second extension arm 26 are recessed into the tube, where a V-shaped drainage gap 7 is set. When the lymph fluid squeezes the tube body inward from the outside of the drainage tube 1, the two sides of the drainage gap 7 are forced inward to open the drainage gap 7, and the lymph fluid can pass through the drainage gap 7 into the drainage tube 1; when the lymph fluid in the drainage tube 1 squeezes the drainage tube 1 body outward, the two sides of the drainage gap 7 are forced outward to close the drainage gap 7 to prevent the lymph fluid from flowing back; the drainage gap 7 extends along the drainage tube 1 body from the closed section 11 to the switching section 12.

[0081] When the drainage tube 1 moves, the ends of the first support column 20 and the second support column 21 become the main stress points of the drainage tube 1, which can also effectively prevent the drainage gap 7 from closing and clogging, reduce the distortion of the drainage tube 1, and thus improve the drainage efficiency and comfort of use.

[0082] In order to prevent the drainage tube 1 from being pressed and stuck due to long-term retention, an anti-sticking protrusion 23 is provided on the connecting column 22 along the circumference of the connecting column 22 to reduce the contact surface between the tube bodies.

[0083] Furthermore, a developing line 6 is provided at the end of the first supporting column 20 and / or the second supporting column 21. By providing the developing line 6 to penetrate the entire axial direction of the drainage tube 1, it is convenient to remove the drainage tube 1 in the future.

[0084] Example 3

[0085] A lymphatic drainage system, comprising the lymphatic drainage device of embodiment 1 or embodiment 2 and Fig.11 The guide forceps 5 are configured to clamp the needle section 44 of the guide needle 4 or the drainage tube 1 .

[0086] In a preferred embodiment, an opening 51 is provided on the guide forceps 5, and the diameter of the opening 51 is smaller than the diameter of the drainage tube 1. A slot 52 is provided at the opening 51, and the slot 52 is adapted to the groove 45 of the needle section 44; the guide forceps 5 are used to remove the drainage tube 1 and the guide needle 4. When the drainage tube 1 is implanted, the slot 52 of the opening 51 of the guide forceps 5 can clamp the groove 45 part of the needle section 44 of the guide needle 4 and pull it out; if the groove 45 part of the needle section 44 cannot be found, the opening 51 can be made to wrap the exposed part of the needle section 44, and the part can be pulled out so that the guide forceps 5 can clamp the groove 45 part of the needle section 44, and then clamp the groove 45 part again to pull out the guide needle 4; when removing the drainage tube 1, use the opening 51 of the guide forceps 5 to clamp the tube section of the drainage tube 1 and take it out.

[0087] The tip of the guiding forceps 5 is set to be round, which can avoid secondary scratching of the wound.

[0088] Application Example 4

[0089] As shown in Figures 12A-12E, the drainage system of Example 3 is applied to the arm. The specific operation method is:

[0090] After the patient is generally anesthetized, a suitable position is found around the patient's wrist to make an incision, and the drainage tube 1 is inserted into the subcutaneous tissue with the guide needle 4, and then extended upward along the arm;

[0091] If there is an obstacle during the process and it is difficult to continue to place the needle, the body surface is cut open, and the groove 45 of the needle head section 44 of the guide needle 4 is clamped by the groove 52 of the opening 51 of the guide forceps 5 and pulled outward, and the guide needle 4 is taken out from here and re-inserted into the subcutaneous tissue;

[0092] Continue to pull the guide needle 4 and the drainage tube 1 upward along the arm, and after reaching the expected placement position on the patient's shoulder, cut open the needle section 44 at a suitable position to expose the needle section 44 to the body surface; use the groove 52 of the opening 51 of the guide forceps 5 to clamp the groove 45 of the needle section 44 of the guide needle 4 and pull it outward until the connecting tube 3 is completely exposed to the body surface;

[0093] Then, the excess part of the connecting tube 3 and the wrist drainage tube 1 is cut according to the retention length, the end of the drainage tube 1 is inserted into the wound, and the previously opened wound is sutured to complete the implantation of the drainage tube 1;

[0094] The drainage tube 1 can be implanted for a long time; the drainage tube 1 can be removed when there is no obvious treatment effect or a strong rejection reaction occurs, and can also be removed when the treatment effect is significant;

[0095] When removing the drainage tube 1, the patient's skin tissue is cut open at the middle of the drainage tube 1 to expose the drainage tube 1, and then the groove 52 of the guide forceps 5 is used to clamp the drainage tube 1 and pull the drainage tube 1 to remove it, and the patient's wound is sutured to complete the removal process of the drainage tube 1;

[0096] Two can be implanted on the outside of the patient's limbs, and one can be implanted on the inside. As the treatment progresses, if a new drainage tube 1 is to be implanted after the drainage tube 1 is removed, other locations must be selected based on the patient's lymphatic vessel distribution, and the in situ implantation is not allowed.

[0097] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they still fall within the protection scope of the present invention.

Claims

1. A lymphatic drainage device, characterized in that: include: a drainage tube, wherein the drainage tube is configured so that lymph fluid flows unidirectionally in the drainage tube; A connecting tube, the rear end of which is fixedly connected to the front end of the drainage tube, A guide needle, the rear end of which is connected to the front end of the connecting tube, the front end of which is a needle section, and the guide needle is configured to guide the drainage tube to a target position; The cross-sectional structure of the drainage tube includes a first support column, a second support column and a connecting column, the first support column and the second support column are arranged in parallel, and the connecting column is arranged between the first support column and the second support column; Both ends of the first support column and the second support column extend toward the direction close to the connecting column to form a first extension arm, and the two first extension arms at the same end of the first support column and the second support column form a first cavity with the connecting column, and the two first extension arms at the same end of the first support column and the second support column are not connected; The two ends of the first support column and the second support column respectively extend in a direction away from the connecting column to form a second extension arm, the second extension arm formed by extending from the two ends of the first support column and the first support column form a second cavity, the second extension arm formed by extending from the two ends of the second support column and the second support column form a second cavity, and the two second extension arms formed by extending from the two ends of the first support column are not connected, and the two second extension arms formed by extending from the two ends of the second support column are not connected; The outer surfaces of the first extension arm and the second extension arm of the drainage tube body are recessed toward the inside of the tube.

2. The lymphatic drainage device according to claim 1, characterized in that: Anti-adhesion protrusions are arranged on the connecting pillars along the circumference of the connecting pillars.

3. The lymphatic drainage device according to claim 1, characterized in that: The end of the first supporting column and / or the end of the second supporting column is provided with a developing line.

4. The lymphatic drainage device according to claim 1, characterized in that: The guide needle comprises an anti-slip section, a first needle section, a second needle section and the needle head section which are connected in sequence. The anti-slip section is inserted into the front end of the connecting tube. The inner diameter of the first needle section is larger than the inner diameter of the connecting tube.

5. The lymphatic drainage device according to claim 4, characterized in that: The needle segment has a groove matched with the guide forceps, and the groove is arranged along the circumference of the needle segment.

6. The lymphatic drainage device according to claim 5, characterized in that: The groove is connected with the rear end of the needle section in an inclined transition.

7. The lymphatic drainage device according to claim 4, characterized in that: The second needle section is detachably connected to the needle head section.

8. The lymphatic drainage device according to claim 4, characterized in that: The needle head section is in the shape of a cylindrical round head or a conical round head.

9. A lymphatic drainage device, characterized in that: include: a drainage tube, wherein the drainage tube is configured so that lymph fluid flows unidirectionally in the drainage tube; A connecting tube, the rear end of which is fixedly connected to the front end of the drainage tube, A guide needle, the rear end of which is connected to the front end of the connecting tube, the front end of which is a needle section, and the guide needle is configured to guide the drainage tube to a target position; The drainage tube comprises a closed section, a change-over section and an open section which are connected in sequence, and the closed section is located at the rear end of the drainage tube; The cross-sectional structures of the closed section and the open section both include a first support column, a second support column and a connecting column, the first support column and the second support column are arranged in parallel, and the connecting column is arranged between the first support column and the second support column; Both ends of the first support column and the second support column extend toward the connecting column to form a first extension arm, and the two first extension arms at the same end of the first support column and the second support column form a first cavity with the connecting column; The two ends of the first support column and the second support column respectively extend in a direction away from the connecting column to form a second extension arm, the second extension arm formed by the two ends of the first support column and the first support column form a second cavity, the second extension arm formed by the two ends of the second support column and the second support column form a second cavity, and the outer surfaces of the first extension arm and the second extension arm of the drainage tube body are recessed inwardly; The closed section: the two first extension arms at the same end of the first support column and the second support column are connected; the two second extension arms formed by extending from both ends of the first support column are connected; and the two second extension arms formed by extending from both ends of the second support column are connected; The open section: the two first extension arms at the same end of the first support column and the second support column are not connected; the two second extension arms formed by extending from both ends of the first support column are not connected, and the two second extension arms formed by extending from both ends of the second support column are not connected; In the closed section, the first extension arm connected at the same end of the first support column and the second support column is provided with a drainage gap, and the two second extension arms connected at both ends of the first support column and the two second extension arms connected at both ends of the second support column are provided with a drainage gap, and the drainage gap is V-shaped from the outside of the tube to the inner wall of the tube.

10. The lymphatic drainage device according to claim 9, characterized in that: Anti-adhesion protrusions are arranged on the connecting pillars along the circumference of the connecting pillars.

11. The lymphatic drainage device according to claim 9, characterized in that: The end of the first supporting column and / or the end of the second supporting column is provided with a developing line.

12. The lymphatic drainage device according to claim 9, characterized in that: The guide needle comprises an anti-slip section, a first needle section, a second needle section and the needle head section which are connected in sequence. The anti-slip section is inserted into the front end of the connecting tube. The inner diameter of the first needle section is larger than the inner diameter of the connecting tube.

13. The lymphatic drainage device according to claim 12, characterized in that: The needle segment has a groove matched with the guide forceps, and the groove is arranged along the circumference of the needle segment.

14. The lymphatic drainage device according to claim 13, characterized in that: The groove is connected with the rear end of the needle section in an inclined transition.

15. The lymphatic drainage device according to claim 12, characterized in that: The second needle section is detachably connected to the needle head section.

16. The lymphatic drainage device according to claim 12, characterized in that: The needle head section is in the shape of a cylindrical round head or a conical round head.

17. A lymphatic drainage system, characterized in that: It comprises the lymphatic drainage device and guiding forceps as described in any one of claims 1 to 16, wherein the guiding forceps are configured to clamp the needle section of the guiding needle or the drainage tube.

18. The lymphatic drainage system according to claim 17, characterized in that: The guide forceps are provided with an opening, the diameter of the opening is smaller than the diameter of the drainage tube, and a clamping groove is provided at the opening, and the clamping groove is adapted to the groove of the needle section.

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