Disposable negative pressure drainage device used after nasal plastic surgery

Abstract

The utility model relates to the technical field of medical instruments, and particularly discloses a disposable nasal plastic postoperative negative pressure drainage device which comprises an injector, a connecting tube, a drainage assembly, a dismounting structure, a positioning ring and a positioning U-shaped ring, the positioning U-shaped ring is fixedly connected with the connecting tube, and the positioning ring is fixedly connected with the drainage assembly. One end of the dismounting and mounting structure is movably connected with the drainage assembly, one end of the connecting pipe is fixedly connected with the dismounting and mounting structure, the injector is fixedly connected with the connecting pipe, and the connecting pipe is provided with a movable groove. In the actual using process, liquid in the nasal cavity of a patient is drained, the syringe in the disposable drainage assembly can be rapidly disassembled and assembled through the disassembling and assembling structure, and safety and rapidness are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a disposable negative pressure drainage device after rhinoplasty surgery. Background Art

[0002] Rhinoplasty is a cosmetic surgery that changes the shape of the nose. Rhinoplasty usually involves incising the columella and nasal mucosa, sharply separating the nasal septum, building a stent at the front end of the nasal septum, and implanting a prosthesis at the dorsal edge of the nasal septum to change the shape of the nose.

[0003] In the prior art, a drainage device is generally placed into the surgical cavity during surgery to guide and drain postoperative bleeding and secretions from the surgical cavity, reduce postoperative congestion and swelling, and reduce the risk of infection. Currently, most nasal drainage devices on the market have common problems such as inappropriate size, low drainage efficiency of small hole structure, easy clogging, and difficulty in adjusting the negative pressure. For example, the fragile nasal soft tissue is easily damaged when placing and removing the drainage device, thereby causing postoperative bleeding. Poor drainage may lead to different swelling on both sides of the nose after surgery, thereby affecting the surgeon's judgment on the postoperative effect and increasing the potential risk of postoperative complications.

[0004] However, in the above-mentioned prior art, the negative pressure adjustment of the drainage device is not precise enough, which may easily cause blockage. In addition, it is not easy to disassemble and install quickly, which makes it inconvenient to use. Utility Model Content

[0005] The utility model aims to provide a disposable post-nasal plastic surgery negative pressure drainage device, aiming to solve the technical problems that the negative pressure adjustment of the drainage device in the prior art is not accurate enough, which easily causes blockage, and is not easy to disassemble and install quickly, making it inconvenient to use.

[0006] To achieve the above-mentioned purpose, the utility model adopts a disposable post-nasal plastic surgery negative pressure drainage device, including a syringe, a connecting tube, a drainage assembly, a disassembly structure, a positioning ring and a positioning U-shaped ring, the positioning U-shaped ring is fixedly connected to the connecting tube and is located on the inner wall of the connecting tube, the positioning ring is fixedly connected to the drainage assembly and is located on the inner wall of the drainage assembly, one end of the disassembly structure is movably connected to the drainage assembly and is located at one end of the drainage assembly, one end of the connecting tube is fixedly connected to the disassembly structure and is located at the other end of the disassembly structure, the syringe is fixedly connected to the connecting tube and is located at the other end of the connecting tube, and the connecting tube has a movable groove.

[0007] Wherein, the syringe comprises a syringe barrel and a piston bolt, the piston bolt is rotatably connected to the syringe barrel and is located at one end of the syringe barrel, and the piston bolt has a thread.

[0008] Wherein, the drainage assembly includes a drainage catheter, a drainage hose, a drainage end and a sealing block, the sealing block is fixedly connected to the drainage hose and is located on one side of the drainage hose, the drainage end is fixedly connected to the drainage hose and is located at one end of the drainage hose, the other end of the drainage hose is fixedly connected to the drainage catheter and is located at one end of the drainage catheter, the other end of the drainage catheter is fixedly connected to the connecting tube and is located at an end of the connecting tube away from the piston bolt, the drainage hose has a guide groove, and the drainage catheter has a positioning groove.

[0009] Among them, the disassembly and assembly structure includes a fixing ring, a spring, a sliding tube and two positioning balls, the two positioning balls are movably connected to the sliding tube and are located on the inner side of the sliding tube, the sliding tube is movably connected to the connecting tube and is located on the peripheral side of the connecting tube, the spring is fixedly connected to the sliding tube and is located on the inner wall of the sliding tube, the fixing ring is fixedly connected to the spring and is located at one end of the spring, and the sliding tube has a placement groove and a spring groove.

[0010] The utility model discloses a disposable negative pressure drainage device after rhinoplasty surgery. The cross section of the drainage hose of the utility model is cross-shaped. The inner cavity of the drainage catheter is fixedly connected with four sealing blocks matched with the drainage hose. The inner cavity of the drainage catheter is provided with four guide grooves matched with the drainage hose. Compared with the common small hole structure, the drainage efficiency of the cross drainage groove structure is higher and it is not easy to be blocked. The surface of the connecting pipe is provided with the disassembly structure. The disassembly structure includes the fixing ring fixedly connected with the connecting pipe, one end of the fixing ring is fixedly connected with the spring, one end of the spring is fixedly connected with the sliding tube, and the inner cavity of the sliding tube is connected with the connecting pipe. The connecting tube is slidably connected, the inner cavity of the sliding tube is provided with the placement groove, the surface of the connecting tube is movably connected with six positioning balls distributed in a ring, the positioning balls are matched with the placement groove, and the surface of the drainage catheter is provided with the positioning groove matched with the positioning balls. During actual use, the drainage hose is left in the patient's nasal cavity to drain the liquid in the nasal cavity. When the syringe is full, the syringe can be quickly replaced by controlling the disassembly structure. Moreover, the disassembly structure strengthens the connection strength between the drainage component and the syringe to avoid the drainage component from being separated from the syringe due to a large pulling force during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model 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 some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a structural schematic diagram of a disposable post-nasal plastic surgery negative pressure drainage device of the utility model.

[0013] Figure 2 The utility model is a three-dimensional schematic diagram of the disassembly and assembly structure of the disposable post-nasal plastic surgery negative pressure drainage device.

[0014] Figure 3 The utility model is a three-dimensional schematic diagram of the disassembly and assembly structure of the disposable post-nasal plastic surgery negative pressure drainage device.

[0015] Figure 4 The utility model is a structural schematic diagram of a drainage component of a disposable post-nasal plastic surgery negative pressure drainage device.

[0016] 1-syringe, 2-connecting tube, 3-drainage assembly, 4-disassembly and assembly structure, 5-positioning ring, 6-positioning U-shaped ring, 7-movable groove, 8-injection syringe, 9-piston bolt, 10-thread, 11-drainage catheter, 12-drainage hose, 13-drainage end, 14-sealing block, 15-guide groove, 16-positioning groove, 17-fixing ring, 18-spring, 19-sliding tube, 20-positioning ball, 21-placement groove, 22-spring groove. DETAILED DESCRIPTION

[0017] See also Figure 1-Figure 4 The utility model provides a disposable postoperative negative pressure drainage device for rhinoplasty, comprising a syringe 1, a connecting tube 2, a drainage component 3, a disassembly structure 4, a positioning ring 5 and a positioning U-shaped ring 6, wherein the positioning U-shaped ring 6 is fixedly connected to the connecting tube 2 and is located on the inner wall of the connecting tube 2, the positioning ring 5 is fixedly connected to the drainage component 3 and is located on the inner wall of the drainage component 3, one end of the disassembly structure 4 is movably connected to the drainage component 3 and is located at one end of the drainage component 3, one end of the connecting tube 2 is fixedly connected to the disassembly structure 4 and is located at the other end of the disassembly structure 4, the syringe 1 is fixedly connected to the connecting tube 2 and is located at the other end of the connecting tube 2, and the connecting tube 2 has a movable groove 7.

[0018] Furthermore, the syringe 1 includes a syringe barrel 8 and a piston bolt 9, wherein the piston bolt 9 is rotatably connected to the syringe barrel 8 and is located at one end of the syringe barrel 8, and the piston bolt 9 has a thread 10. The piston bolt 9 is pulled open by rotating the thread 10 to create a vacuum in the syringe barrel 8, and the magnitude of the negative pressure can be precisely adjusted by observing the scale of the piston bolt 9 on the syringe barrel 8.

[0019] Furthermore, the drainage assembly 3 includes a drainage catheter 11, a drainage hose 12, a drainage end 13 and a sealing block 14, wherein the sealing block 14 is fixedly connected to the drainage hose 12 and is located on one side of the drainage hose 12, the drainage end 13 is fixedly connected to the drainage hose 12 and is located at one end of the drainage hose 12, the other end of the drainage hose 12 is fixedly connected to the drainage catheter 11 and is located at one end of the drainage catheter 11, the other end of the drainage catheter 11 is fixedly connected to the connecting tube 2 and is located at the end of the connecting tube 2 away from the piston bolt 9, and the drainage hose 12 has a guide groove 1 5. The drainage catheter 11 has a positioning groove 16. Through the cooperation effect of the drainage terminal 13 being hemispherical in shape and being made of soft PVC, the drainage terminal 13 can better adapt to the shape of the nasal cavity, reducing the discomfort of the patient during drainage by the drainage terminal 13. Through the setting of the movable groove 7, excessive movement of the positioning ball 20 is prevented. Through the setting of the spring groove 22, support is provided and the movement range of the spring 18 is limited. Through the cooperation of the positioning ring 5 and the positioning U-shaped ring 6, the drainage catheter 11 is limited, ensuring the position of the drainage catheter 11 when connected.

[0020] Further, the disassembly structure 4 includes a fixing ring 17, a spring 18, a slide tube 19 and two positioning balls 20, the two positioning balls 20 are movably connected to the slide tube 19 and are located on the inner side of the slide tube 19, the slide tube 19 is movably connected to the connecting tube 2 and is located on the peripheral side of the connecting tube 2, the spring 18 is fixedly connected to the slide tube 19 and is located on the inner wall of the slide tube 19, the fixing ring 17 is fixedly connected to the spring 18 and is located at one end of the spring 18, The slide tube 19 has a placement groove 21 and a spring groove 22. The cross-section of the drainage hose 12 is cross-shaped. The sealing block 14 and the guide groove 15 are used in conjunction with each other, so that the drainage hose 12 has the advantage of smooth drainage and will not be blocked by the nasal soft tissue. At the same time, it can also have a certain protective effect on the nasal soft tissue. Secondly, through the cooperation of the sealing block 14 and the guide groove 15, the connection relationship between the drainage catheter 11 and the drainage hose 12 is ensured to be tight, thereby ensuring smooth drainage.

[0021] In this embodiment, the medical staff pulls the slide tube 19 to move toward one side of the fixing ring 17, and places the drainage catheter 11 in the inner cavity of the connecting tube 2. In the process of the slide tube 19 moving toward one side of the fixing ring 17, the spring 18 is squeezed. When the slide tube 19 drives the placement groove 21 to move to the top of the positioning ball 20, the user pushes the drainage terminal 13 to move toward the inner cavity of the connecting tube 2 until it contacts the positioning ball 20, continues to push the drainage terminal 13, pushes the positioning ball 20 into the inner cavity of the placement groove 21, and pushes the drainage terminal 13 again. When the positioning ring 5 enters the inner cavity of the positioning U-shaped ring 6, the slide tube 19 is released. Under the elastic force of the spring 18, the slide tube 19 pushes the placement groove 21 to move to the side away from the fixing ring 17, and squeezes the positioning ball 20 into the positioning groove 1 6, thereby completing the purpose of connecting and installing the drainage catheter 11 with the connecting tube 2. The user places the drainage terminal 13 in the patient's nasal cavity, pulls open the piston bolt 9 by rotating the thread 10, and creates a vacuum in the injection syringe 8, so that the negative pressure attracts the liquid in the nasal cavity from the drainage terminal 13 and the drainage hose 12 to the inner cavity of the drainage catheter 11, and further drains the liquid into the inner cavity of the connecting tube 2, and then drains the liquid into the inner cavity of the syringe 1 through the connecting tube 2, completing the purpose of draining the liquid in the patient's nasal cavity. When the drainage component 3 needs to be removed, the sliding tube 19 is pulled again to move to one side of the fixing ring 17, and at the same time, the drainage catheter 11 is pulled away from the inner cavity of the connecting tube 2. Under the driving force of the drainage catheter 11, the positioning ball 20 enters the inner cavity of the placement groove 21, and then the sliding tube 19 is released.

[0022] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A disposable post-nasal plastic surgery negative pressure drainage device, characterized in that: It includes a syringe, a connecting tube, a drainage component, a disassembly and assembly structure, a positioning ring and a positioning U-shaped ring, wherein the positioning U-shaped ring is fixedly connected to the connecting tube and is located on the inner wall of the connecting tube, the positioning ring is fixedly connected to the drainage component and is located on the inner wall of the drainage component, one end of the disassembly and assembly structure is movably connected to the drainage component and is located at one end of the drainage component, one end of the connecting tube is fixedly connected to the disassembly and assembly structure and is located at the other end of the disassembly and assembly structure, the syringe is fixedly connected to the connecting tube and is located at the other end of the connecting tube, and the connecting tube has a movable groove.

2. The disposable post-nasal plastic surgery negative pressure drainage device according to claim 1, characterized in that: The syringe comprises a syringe barrel and a piston bolt, wherein the piston bolt is rotatably connected to the syringe barrel and is located at one end of the syringe barrel, and the piston bolt has a thread.

3. The disposable post-nasal plastic surgery negative pressure drainage device according to claim 2, characterized in that: The drainage assembly includes a drainage catheter, a drainage hose, a drainage terminal and a sealing block, wherein the sealing block is fixedly connected to the drainage hose and is located at one side of the drainage hose, the drainage terminal is fixedly connected to the drainage hose and is located at one end of the drainage hose, the other end of the drainage hose is fixedly connected to the drainage catheter and is located at one end of the drainage catheter, the other end of the drainage catheter is fixedly connected to the connecting tube and is located at an end of the connecting tube away from the piston bolt, the drainage hose has a guide groove, and the drainage catheter has a positioning groove.

4. The disposable post-nasal plastic surgery negative pressure drainage device according to claim 3, characterized in that: The disassembly and assembly structure includes a fixing ring, a spring, a sliding tube and two positioning balls. The two positioning balls are movably connected to the sliding tube and are located on the inner side of the sliding tube. The sliding tube is movably connected to the connecting tube and is located on the peripheral side of the connecting tube. The spring is fixedly connected to the sliding tube and is located on the inner wall of the sliding tube. The fixing ring is fixedly connected to the spring and is located at one end of the spring. The sliding tube has a placement groove and a spring groove.

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