Negative pressure sealing drainage device for orthopedic postoperative infected wound

Abstract

The utility model discloses a negative pressure sealing drainage device for an infected wound after an orthopedics department, and relates to the technical field of medical instruments, in particular to the negative pressure sealing drainage device for the infected wound after the orthopedics department, which comprises a base, and a fixing mechanism is arranged on the base and used for fixing limbs of a patient. A negative pressure drainage mechanism is arranged on the base and used for wound negative pressure drainage, the fixing mechanism comprises an adjusting assembly, the adjusting assembly comprises a cylinder base fixed to the front end of the top of the base, a threaded rod is installed on the cylinder base, and a socket is fixed to the outer wall of the upper end of the threaded rod. The problems that in the process, the drainage tube can stimulate the skin and tissue around the wound to a certain degree, so that pain is caused, the limbs, with the wound, of the patient move disorderly, and the drainage tube falls off or the drainage part is damaged are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a negative pressure sealing drainage device for orthopedic post-operative infected wounds. Background Art

[0002] Orthopedic negative pressure drain is a medical device mainly used for wound drainage after orthopedic surgery. Due to the particularity of orthopedic surgery, postoperative wounds are prone to infection and fluid accumulation, so a negative pressure drain is needed to drain the fluid in the wound in time and promote wound healing;

[0003] After checking the public (announcement) number: CN218356932U, a negative pressure sealing drainage device for orthopedic postoperative wound infection that is easy to operate is disclosed. This technology discloses technical solutions such as "through the mutual cooperation of the locking mechanism in the device and the first spring and the adjustment plate, the device can change the negative pressure absorption area according to the size of the wound when in use", which has technical effects such as "avoiding the incomplete negative pressure absorption caused by the wound being too large, thereby reducing the absorption efficiency";

[0004] When the negative pressure closed drainage device is in use, it will attract the fluid and secretions in the wound to promote the cleaning and drying of the wound. However, during the process, the drainage tube may cause certain irritation to the skin and tissues around the wound, thereby causing pain and causing the patient's wounded limbs to move around, resulting in the drainage tube falling off or damage to the drainage site. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a negative pressure closed drainage device for orthopedic postoperative infected wounds, which has the characteristics of being able to adjust the angle through a fixing mechanism to fix the positions of different limbs of the patient, avoiding pain during the drainage process and causing the patient's wounded limbs to move randomly.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a negative pressure closed drainage device for orthopedic postoperative infected wounds, including a base, a fixing mechanism is provided on the base and used to fix the patient's limbs, a negative pressure drainage mechanism is provided on the base and used for negative pressure drainage of the wound, and the fixing mechanism includes:

[0007] The adjustment component includes a cylinder seat fixed at the front end of the top of the base, a threaded rod is installed on the cylinder seat, a socket is fixed on the upper outer wall of the threaded rod, a folding rod is pivotally connected to the upper end of the threaded rod, a plug is slidably mounted on the outer wall of the folding rod, and a spring is mounted on the folding rod;

[0008] The support assembly comprises a ring frame sleeved on the folding rod, a support plate is fixed on the ring frame and is used for supporting the patient's limbs.

[0009] Preferably, the support assembly also includes a threaded knob threadedly mounted on the ring frame, and straps fixed to the four corners of the bottom of the support plate.

[0010] Preferably, the outer wall of the threaded rod and the inner wall of the cylinder seat are threadedly connected.

[0011] Preferably, the negative pressure drainage mechanism comprises:

[0012] A negative pressure assembly includes a chassis fixed to the rear end of the top of the base, a battery and a vacuum pump installed inside the chassis, a control panel installed on the upper end of the chassis, and the output end of the battery is electrically connected to the vacuum pump through the control panel, a pressure regulating valve is installed on the outer wall of the chassis, one end of the pressure regulating valve is connected to an air pressure sensor, and the air pressure sensor is electrically connected to the control end of the control panel;

[0013] A filter assembly, including a hose mounted on the negative pressure assembly;

[0014] The drainage assembly comprises a drainage head mounted on the hose.

[0015] Preferably, the filter assembly further comprises a filter cup connected to the pressure regulating valve, and the other end of the filter cup is connected to the hose.

[0016] Preferably, the drainage assembly further comprises a plurality of drainage holes opened inside the lower end of the drainage head, a drainage cover threadedly mounted on the lower end of the drainage head, and a drainage nozzle inserted and mounted inside the drainage cover and corresponding to the plurality of drainage holes.

[0017] Beneficial Effects

[0018] The utility model provides a negative pressure closed drainage device for orthopedic postoperative infected wounds. Compared with the prior art, it has the following beneficial effects:

[0019] (1) The folding rod can be rotated by pulling the plug to squeeze the spring. When the folding rod is rotated to a vertical state, the pulled plug is released, so that the plug sleeve is pushed to the connection between the folding rod and the threaded rod by the spring rebound pressure, so that the folding rod and the threaded rod can be fixed; then the folding rod can be rotated to a horizontal state by pulling the plug to squeeze the spring, and then the pulled plug is released, and the plug is pushed by the spring rebound pressure, so that the plug is inserted into the socket, and then the folding rod and the threaded rod are fixed; by fixing the support assembly on the folding rod horizontally or vertically, different limbs of the patient can be fixed.

[0020] (2) By inserting the drainage component into the wound, the negative pressure generated by the drainage component can effectively suck out the secretions from the wound, and the drained wound secretions can enter the drainage hole for collection and filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the folding of the fixing mechanism in the utility model;

[0023] Figure 3 It is a structural schematic diagram of the fixed mechanism in the utility model;

[0024] Figure 4 It is a cross-sectional exploded view of the drainage component in the utility model;

[0025] Figure 5 It is a structural schematic diagram of the negative pressure component in the utility model.

[0026] In the figure: 1. base; 2. fixing mechanism; 21. adjustment component; 211. cylinder seat; 212. threaded rod; 213. socket; 214. folding rod; 215. plug; 216. spring; 22. support component; 221. ring frame; 222. support plate; 223. threaded knob; 224. strap; 3. negative pressure drainage mechanism; 31. negative pressure component; 311. chassis; 312. battery; 313. vacuum pump; 314. control panel; 315. pressure regulating valve; 316. air pressure sensor; 32. filter component; 321. hose; 322. filter cup; 33. drainage component; 331. drainage head; 332. drainage hole; 333. drainage cover; 334. drainage nozzle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-5 The utility model provides a technical solution for a negative pressure closed drainage device for orthopedic postoperative infected wounds: a negative pressure closed drainage device for orthopedic postoperative infected wounds, comprising a base 1, a fixing mechanism 2 is provided on the base 1 and is used to fix the patient's limbs, a negative pressure drainage mechanism 3 is provided on the base 1 and is used for negative pressure drainage of the wound, and the fixing mechanism 2 includes:

[0029] The adjustment assembly 21 includes a cartridge seat 211 fixed to the front end of the top of the base 1, a threaded rod 212 is installed on the cartridge seat 211, a socket 213 is fixed to the upper outer wall of the threaded rod 212, a folding rod 214 is pivotally connected to the upper end of the threaded rod 212, a plug 215 is slidably mounted on the outer wall of the folding rod 214, and a spring 216 is mounted on the folding rod 214;

[0030] The support assembly 22 includes a ring frame 221 sleeved on the folding rod 214, and a support plate 222 is fixed on the ring frame 221 for supporting the patient's limbs.

[0031] In this embodiment, the folding rod 214 can be rotated by pulling the plug 215 to squeeze the spring 216. When the folding rod 214 is rotated to a vertical state, the pulled plug 215 is released, and the plug 215 is pushed to be mounted on the connection between the folding rod 214 and the threaded rod 212 by the rebound pressure of the spring 216, so that the folding rod 214 and the threaded rod 212 can be fixed; the folding rod 214 can be rotated to a horizontal state by pulling the plug 215 to squeeze the spring 216, and then the pulled plug 215 is released, and the plug 215 is pushed by the rebound pressure of the spring 216, so that the plug 215 is inserted into the socket 213, and the folding rod 214 and the threaded rod 212 are fixed; by fixing the support assembly 22 on the folding rod 214 horizontally or vertically, different limbs of the patient can be fixed.

[0032] Specifically, the support assembly 22 further includes a threaded knob 223 threadedly installed on the ring frame 221 , and straps 224 fixed to the four corners of the bottom of the support plate 222 .

[0033] In this embodiment, the patient places the limb with the wound on the support plate 222 and fixes the limb on the support plate 222 by tying it with the strap 224 .

[0034] Specifically, the outer wall of the threaded rod 212 and the inner wall of the cylinder seat 211 are threadedly connected.

[0035] In this embodiment, the height position of the support assembly 22 can be adjusted by rotating the threaded rod 212 to adapt to the limb positions of different patients.

[0036] Specifically, the negative pressure drainage mechanism 3 includes:

[0037] The negative pressure assembly 31 includes a chassis 311 fixed to the top rear end of the base 1, a battery 312 and a vacuum pump 313 installed inside the chassis 311, and a control panel 314 installed on the upper end of the chassis 311, and the output end of the battery 312 is electrically connected to the vacuum pump 313 through the control panel 314, and a pressure regulating valve 315 is installed on the outer wall of the chassis 311, one end of the pressure regulating valve 315 is connected to an air pressure sensor 316, and the air pressure sensor 316 is electrically connected to the control end of the control panel 314;

[0038] The filter assembly 32 includes a hose 321 installed on the negative pressure assembly 31;

[0039] The drainage assembly 33 includes a drainage head 331 installed on the hose 321 .

[0040] In this embodiment, the drainage component 33 is inserted into the wound, and the negative pressure generated by the drainage component 33 can effectively draw out the secretions in the wound.

[0041] Specifically, the filter assembly 32 further includes a filter cup 322 connected to the pressure regulating valve 315 , and the other end of the filter cup 322 is connected to the hose 321 .

[0042] In this embodiment, the wound secretions drained out can enter the drainage hole 332 for collection and filtration.

[0043] Specifically, the drainage component 33 also includes a plurality of drainage holes 332 opened inside the lower end of the drainage head 331, a drainage cover 333 threadedly installed at the lower end of the drainage head 331, and a drainage nozzle 334 inserted and installed inside the drainage cover 333 and corresponding to the plurality of drainage holes 332.

[0044] In this embodiment, after each use, the drainage nozzle 334 can be disassembled and replaced by removing the drainage cover 333 from the drainage head 331; after the drainage nozzle 334 is inserted and installed in the drainage cover 333, the drainage cover 333 and the drainage head 331 are threadedly installed so that the lower end of the drainage head 331 can squeeze the drainage nozzle 334 and fix it in the drainage cover 333.

[0045] The working principle and use process of the utility model are as follows: first, the plug 215 is pulled to squeeze the spring 216 so that the folding rod 214 can be rotated. When the folding rod 214 is rotated to a vertical state, the pulled plug 215 is released, so that the plug 215 is pushed to be sleeved on the connection between the folding rod 214 and the threaded rod 212 by the rebound pressure of the spring 216, so that the folding rod 214 and the threaded rod 212 can be fixed; then the plug 215 can be pulled to squeeze the spring 216 to rotate the folding rod 214 to a horizontal state, and then the pulled plug 215 is released, and the plug 215 is pushed by the rebound pressure of the spring 216, so that the plug 215 is inserted The socket 213 is then used to fix the folding rod 214 and the threaded rod 212; by fixing the support assembly 22 on the folding rod 214 horizontally or vertically, different limbs of the patient can be fixed; then, the height position of the support assembly 22 can be adjusted by rotating the threaded rod 212; the patient puts the limb with the wound on the support plate 222, and fixes the limb on the support plate 222 with the strap 224; finally, by inserting the drainage assembly 33 into the wound and generating negative pressure through the drainage assembly 33, the secretions at the wound can be effectively sucked out, and the drained wound secretions can enter the drainage hole 332 for collection and filtration.

[0046] The model of the vacuum pump is GXS-750, the model of the pressure regulating valve is 200X-16, and the model of the air pressure sensor is PT111B-7M-B1-DW. They are all products using existing mature technologies and will not be elaborated on in detail here. All the electrical components appearing in this article are connected to the external main controller and 220V AC power.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A negative pressure sealing drainage device for orthopedic postoperative infected wounds, comprising a base (1), characterized in that: The base (1) is provided with a fixing mechanism (2) for fixing the patient's limbs, and the base (1) is provided with a negative pressure drainage mechanism (3) for negative pressure drainage of the wound, and the fixing mechanism (2) comprises: The adjustment assembly (21) comprises a cartridge seat (211) fixed to the front end of the top of the base (1), a threaded rod (212) being mounted on the cartridge seat (211), a socket (213) being fixed to the upper outer wall of the threaded rod (212), a folding rod (214) being pivotally connected to the upper end of the threaded rod (212), a plug (215) being slidably mounted on the outer wall of the folding rod (214), and a spring (216) being mounted on the folding rod (214); The support assembly (22) comprises a ring frame (221) sleeved on the folding rod (214); a support plate (222) is fixed on the ring frame (221) and is used to support the patient's limbs.

2. A negative pressure sealing drainage device for orthopedic postoperative infected wounds according to claim 1, characterized in that: The support assembly (22) further comprises a threaded knob (223) threadedly mounted on the ring frame (221), and binding straps (224) fixed to the four corners of the bottom of the support plate (222).

3. The negative pressure sealing drainage device for orthopedic postoperative infected wounds according to claim 1, characterized in that: The outer wall of the threaded rod (212) and the inner wall of the cylinder seat (211) are threadedly connected.

4. The negative pressure sealing drainage device for orthopedic postoperative infected wounds according to claim 1, characterized in that: The negative pressure drainage mechanism (3) comprises: The negative pressure assembly (31) comprises a case (311) fixed at the top rear end of the base (1), a storage battery (312) and a vacuum pump (313) installed inside the case (311), and a control panel (314) installed at the upper end of the case (311), wherein the output end of the storage battery (312) is electrically connected to the vacuum pump (313) via the control panel (314), and a pressure regulating valve (315) is installed on the outer wall of the case (311), one end of the pressure regulating valve (315) is connected to an air pressure sensor (316), and the air pressure sensor (316) is electrically connected to the control end of the control panel (314); A filter assembly (32), comprising a hose (321) mounted on the negative pressure assembly (31); The drainage assembly (33) includes a drainage head (331) installed on the hose (321).

5. A negative pressure sealing drainage device for orthopedic postoperative infected wounds according to claim 4, characterized in that: The filter assembly (32) further comprises a filter cup (322) connected to the pressure regulating valve (315), and the other end of the filter cup (322) is connected to the hose (321).

6. The negative pressure sealing drainage device for orthopedic postoperative infected wounds according to claim 4, characterized in that: The drainage assembly (33) further comprises a plurality of drainage holes (332) formed inside the lower end of the drainage head (331), a drainage cover (333) threadedly mounted on the lower end of the drainage head (331), and a drainage nozzle (334) inserted and mounted inside the drainage cover (333) and corresponding to the plurality of drainage holes (332).

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