A medical postoperative drainage tube assembly

Abstract

This invention discloses a medical postoperative drainage tube assembly, relating to the field of medical drainage products. It includes a drainage tube with a limiting mechanism at its upper end fixed to the patient's wound position, and a collection cylinder for storing the patient's waste blood at its lower end. A suction-generating air pressure control mechanism is provided between the drainage tube and the collection cylinder. A blood-draining mechanism for discharging waste blood is provided at the lower end of the collection cylinder. This invention facilitates air and blood flow through the collection cylinder by controlling the press-to-open air valve, and the compressed airbag allows for pressure control within the collection cylinder without needing to flatten it, making the blood drainage measurement operation of the drainage tube more convenient.

Description

Technical Field

[0001] This invention relates to the field of medical drainage products, specifically a postoperative medical drainage tube assembly. Background Technology

[0002] A drainage tube is a medical device used in clinical surgery to drain pus, blood, and fluid accumulated between body tissues or in body cavities, preventing postoperative infection and promoting wound healing. Many types of surgical drainage tubes are used clinically; some are used for urinary catheterization, others for wounds, and they are used in the thoracic cavity, brain cavity, gastrointestinal tract, and biliary tract, among others. The purpose of surgical drainage is to drain pus, blood, and fluid accumulated between body tissues or in body cavities to prevent postoperative infection and to avoid hindering wound healing.

[0003] Extensive research revealed that prior art publication number CN113101432B discloses a post-mastectomy drainage component, relating to the field of medical drainage products. This component provides a post-mastectomy drainage component capable of detecting bleeding from specific areas within the surgical field. The drainage component includes a drainage tube and a detection tube. The drainage tube comprises a main body, a bypass tube, a first trachea, and multiple first air bladders. The main body has inlet holes at different positions on its front. The first air bladders are spaced apart within the front of the main body and connected to it. The first trachea communicates with each of the first air bladders. When inflated, the first air bladders divide the internal space of the main body into multiple drainage cavities. The bypass tube is aligned with and connected to the front of the main body, and has a connecting hole that connects the bypass tube and the drainage cavities. The detection tube comprises a main body, a second air bladder, and a second trachea. The main body has a detection hole on its front. The second air bladder surrounds the main body, and the second trachea communicates with the second air bladder. The detection tube can be inserted into the bypass tube.

[0004] The existing medical postoperative drainage tubes, after being fixed to the patient's wound, require the air vent of the balloon (away from the wound) to be opened, the balloon to be flattened, and the vent closed to create a negative pressure inside the balloon. This allows contaminated blood from the patient's wound to be transferred through the drainage tube into the balloon. When the amount of contaminated blood in the balloon reaches a certain level, it is measured, the vent is opened to drain the contaminated blood, the balloon is flattened again, and the vent is closed again. This makes the blood drainage and measurement operation of the drainage tube inconvenient. Therefore, based on the above-mentioned research and in light of the existing problems, a medical postoperative drainage tube assembly is provided. Summary of the Invention

[0005] The purpose of this invention is to provide a medical postoperative drainage tube assembly to solve the problem of inconvenient blood drainage measurement operation of the drainage tube mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A medical postoperative drainage tube assembly includes a drainage tube, the upper end of which is provided with a limiting mechanism for fixing at the patient's wound position, the lower end of which is provided with a collection tube for storing the patient's waste blood, and a pressure control mechanism for generating suction is provided between the drainage tube and the collection tube, and the lower end of the collection tube is provided with a blood discharge mechanism for discharging waste blood.

[0008] Furthermore, an installation ring is rotatably mounted on the outer wall of the collection tube, a spring rod is fixedly mounted on the upper end of the installation ring, a fixing clamp is provided at the end of the spring rod away from the installation ring, and a one-way valve is fixedly mounted on the end of the drainage tube near the collection tube.

[0009] Furthermore, the limiting mechanism includes a limiting ring that is slidably disposed on the outer wall of the drainage tube. The limiting ring has through holes at both ends, and a limiting rope is slidably disposed in the through holes. A fixing sticker is fixedly installed at the end of the limiting rope away from the through holes.

[0010] Furthermore, a placement groove is provided on the side end of the limiting ring, a placement rod is welded in the placement groove, a placement cylinder is rotatably sleeved on the outer wall of the placement rod, a shaped ring is fixedly sleeved on the outer wall of the placement cylinder, and a retaining ring is slidably installed on the outer wall of the limiting ring near the shaped ring.

[0011] Furthermore, the air pressure control mechanism includes a compressed air bladder, which is fixedly installed on the outer wall of the mounting ring. A vent pipe is fixedly installed at the upper end of the compressed air bladder, and a venting and waterproofing mechanism is provided at the end of the vent pipe away from the compressed air bladder.

[0012] Furthermore, the ventilation and waterproof mechanism includes a ventilation cylinder, and the ventilation cylinder is fixedly installed at the end of the ventilation pipe away from the compressed air bladder. An air suction cylinder is fixedly installed at the end of the ventilation cylinder away from the ventilation pipe, and the air suction cylinder is fixedly installed between the one-way valve and the collection cylinder.

[0013] Furthermore, multiple suction blocks are arrayed on the inner wall of the suction cylinder, and ventilation holes are opened inside the suction blocks, with a limiting frame installed in the ventilation holes.

[0014] Furthermore, a rubber cover is fixedly installed at one end of the limiting frame near the air intake strip, and the inner wall of the rubber cover is provided with absorbent cotton.

[0015] Furthermore, each of the air-suction blocks has an air-suction strip fixedly installed at its lower end, and the air-suction strip is fixedly installed on the inner wall of the collection cylinder, with multiple air-suction holes opened on the outer wall of the air-suction strip.

[0016] Furthermore, the blood drainage mechanism includes a blood drainage cylinder, which is fixedly installed at the end of the collection cylinder away from the drainage tube. A water passage hole is provided at the end of the blood drainage cylinder away from the collection cylinder. A rotating cover is rotatably installed at the end of the blood drainage cylinder away from the collection cylinder, and a blood drainage hole that matches the water passage hole is provided at the upper end of the rotating cover.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This invention makes it easier to ventilate and pump blood through the collection cylinder by controlling the press of the ventilation valve. When compressing the air bag, it is not necessary to flatten the collection cylinder to control and change the air pressure inside the collection cylinder, making the blood drainage measurement operation of the drainage tube more convenient.

[0019] 2. Secure the limiting ring with the limiting rope, and then secure the drainage tube with the special-shaped ring to prevent the drainage tube from falling off when the patient moves or accidentally touches it;

[0020] 3. When waste blood flows into the suction block during the use of the drainage tube and needs to be transferred to the suction cylinder, the absorbent cotton absorbs the waste blood and expands. After the absorbent cotton expands, it opens the rubber cover and makes the rubber cover fit against the inner wall of the vent hole, thereby sealing the suction block and preventing waste blood from being transferred to the compression air bag through the suction block. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the limiting ring in this invention;

[0023] Figure 3 This is a schematic diagram of the structure of the placement cylinder in this invention;

[0024] Figure 4 This is a schematic diagram of the structure of the collection cylinder in this invention;

[0025] Figure 5 This is a schematic diagram of the blood drainage mechanism in this invention;

[0026] Figure 6 This is a schematic diagram of the air intake cylinder in this invention;

[0027] Figure 7 This is a schematic diagram of the air intake strip in this invention;

[0028] Figure 8 This is a schematic diagram of the air intake block in this invention.

[0029] In the diagram: 1. Drainage tube; 101. Collection cylinder; 102. Mounting ring; 103. Elastic rod; 104. Fixing clamp; 105. One-way valve;

[0030] 2. Limiting mechanism; 201. Limiting ring; 202. Limiting rope; 203. Fixing sticker;

[0031] 204. Placement rod; 205. Placement cylinder; 206. Irregularly shaped ring; 207. Retaining ring;

[0032] 3. Air pressure control mechanism; 301. Compression airbag; 302. Air hose; 303. Compression spring;

[0033] 4. Blood drainage mechanism; 401. Blood drainage cylinder; 402. Water inlet; 403. Rotating cover; 404. Blood drainage hole;

[0034] 5. Ventilation and waterproofing mechanism; 501. Ventilation cylinder; 502. Press-to-ventilate valve; 503. Suction cylinder; 504. Suction block; 505. Suction strip; 506. Suction hole;

[0035] 507. Ventilation hole; 508. Restriction frame; 509. Rubber cover; 510. Absorbent cotton. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figures 1 to 8 A medical postoperative drainage tube assembly includes a drainage tube 1, a limiting mechanism 2 fixed at the upper end of the drainage tube 1 to the patient's wound, and a collection cylinder 101 for storing the patient's waste blood at the lower end of the drainage tube 1. The collection cylinder 101 is a transparent plastic bottle with graduation lines on it, which makes it easier for staff to observe and record the flow rate of the discharged waste blood. A pressure control mechanism 3 for generating suction is provided between the drainage tube 1 and the collection cylinder 101, and a blood discharge mechanism 4 for discharging waste blood is provided at the lower end of the collection cylinder 101.

[0038] Please see Figures 1-5An installation ring 102 is rotatably mounted on the outer wall of the collection tube 101. An elastic rod 103 is fixedly mounted on the upper end of the installation ring 102. The elastic rod 103 allows the collection tube 101 to swing freely after being hung on the patient's clothing. A fixing clip 104 is provided at the end of the elastic rod 103 away from the installation ring 102, and a barb is provided at the opening of the fixing clip 104. The installation ring 102 and fixing clip 104 on the outer wall of the collection tube 101 allow the collection tube 101 to be fixed on the patient's clothing when the patient is moving, making it more convenient for the patient to move with the drainage tube 1 assembly. A one-way valve 105 is fixedly mounted on the end of the drainage tube 1 near the collection tube 101. The one-way valve 105 can prevent the waste blood collected in the collection tube 101 from flowing back into the patient's wound through the drainage tube 1.

[0039] Please see Figures 1-3 The limiting mechanism 2 includes a limiting ring 201 slidably disposed on the outer wall of the drainage tube 1. The limiting ring 201 has through holes at both ends, and a limiting rope 202 is slidably disposed in the through holes. A fixing sticker 203 is fixedly installed at the end of the limiting rope 202 away from the through holes. Specifically, after the limiting ring 201 is moved to a suitable position on the patient's body, the fixing sticker 203 is pasted on the patient's skin. The limiting rope 202 is pulled to tie the limiting rope 202, so that the limiting rope 202 fixes the limiting ring 201 in a suitable position on the patient's body. The fixing sticker 203 is made of strip shape, and the adhesive surface of the fixing sticker 203 is provided with a transparent film. The transparent film makes it more convenient to use the fixing sticker 203.

[0040] Please see Figures 1-3 A placement groove is provided on the side end of the limiting ring 201. A placement rod 204 is welded into the placement groove. A placement cylinder 205 is rotatably sleeved on the outer wall of the placement rod 204. A placement spring is fixedly installed between the placement cylinder 205 and the placement groove. A shaped ring 206 is fixedly sleeved on the outer wall of the placement cylinder 205. When the placement spring allows the shaped ring 206 to be unobstructed, the placement spring pushes the shaped ring 206 to rotate. An adhesive layer is provided on the outer wall of the shaped ring 206. After the shaped ring 206 rotates and comes into contact with the drainage tube 1, the adhesive layer fixes the limiting ring 201 to the outer wall of the drainage tube 1, preventing drainage. After the tube 1 is fixed at the patient's wound, if the patient moves or accidentally bumps the drainage tube 1, causing it to fall off, a retaining ring 207 is slidably installed on the outer wall of the limiting ring 201 near the outer wall of the irregular ring 206. Specifically, when it is necessary to fix the limiting ring 201 to the outer wall of the drainage tube 1, the retaining ring 207 is slid so that the retaining ring 207 no longer blocks the irregular ring 206, and the irregular ring 206 rotates, so that the adhesive layer on the irregular ring 206 contacts the drainage tube 1, thereby fixing the limiting ring 201. When the retaining ring 207 is not moved, the adhesive layer of the irregular ring 206 contacts the retaining ring 207, so that the irregular ring 206 will not rotate.

[0041] Please see Figures 1 to 8 The air pressure control mechanism 3 includes a compression airbag 301, which is fixedly installed on the outer wall of the mounting ring 102. A compression spring 303 is fixedly installed in the inner wall of the compression airbag 301. The compression spring 303 in the compression airbag 301 provides the ability to recover after the compression airbag 301 is compressed and then contracts. A vent pipe 302 is fixedly installed at the upper end of the compression airbag 301. A ventilated and waterproof mechanism 5 is provided at the end of the vent pipe 302 away from the compression airbag 301.

[0042] Please see Figures 1 to 8 The ventilation and waterproof mechanism 5 includes a ventilation cylinder 501, which is fixedly installed at the end of the ventilation pipe 302 away from the compressed air bag 301. A press-to-ventilate valve 502 is provided at the upper end of the ventilation cylinder 501. The press-to-ventilate valve 502 is a BLCH pneumatic valve, a quick exhaust valve, or a hand slide valve in the prior art. An air suction cylinder 503 is fixedly installed at the end of the ventilation cylinder 501 away from the ventilation pipe 302, and the air suction cylinder 503 is fixedly installed between the one-way valve 105 and the collection cylinder 101.

[0043] Please see Figures 1 to 8 Multiple suction blocks 504 are arrayed on the inner wall of the suction cylinder 503. Each suction block 504 has a suction strip 505 fixedly installed at its lower end. The suction strip 505 is fixedly installed on the inner wall of the collection cylinder 101. Multiple suction holes 506 are provided on the outer wall of the suction strip 505. Specifically, the multiple suction holes 506 provided on the suction strip 505 allow other suction holes 506 to still be able to draw air even when waste blood blocks some of them. At the same time, the suction strip 505 will not draw waste blood into the suction cylinder 503.

[0044] Please see Figures 1 to 8 The suction block 504 has an internal ventilation hole 507, and a limiting frame 508 is installed in the ventilation hole 507. A rubber cover 509 is fixedly installed at one end of the limiting frame 508 near the suction strip 505. The inner wall of the rubber cover 509 is provided with absorbent cotton 510. The absorbent cotton 510 is an expandable sponge that absorbs water and expands in the prior art. The expandable sponge allows waste blood to flow into the suction block 504. When it needs to be transferred to the suction cylinder 503, the absorbent cotton 510 absorbs the waste blood and expands. After the absorbent cotton 510 expands, it opens the rubber cover 509, so that the rubber cover 509 fits against the inner wall of the ventilation hole 507, thereby sealing the suction block 504 and preventing waste blood from being transferred to the compression airbag 301 through the suction block 504.

[0045] Please see Figure 5The blood drainage mechanism 4 includes a blood drainage cylinder 401, which is fixedly installed at the end of the collection cylinder 101 away from the drainage tube 1. A water passage hole 402 is provided at the end of the blood drainage cylinder 401 away from the collection cylinder 101. A rotating cover 403 is rotatably installed at the end of the blood drainage cylinder 401 away from the collection cylinder 101. A blood drainage hole 404 that matches the water passage hole 402 is provided at the upper end of the rotating cover 403. Specifically, when blood needs to be drained, the rotating cover 403 is rotated so that the blood drainage hole 404 provided on the rotating cover 403 rotates to the side of the water passage hole 402 and matches the water passage hole 402, so that the blood drainage cylinder 401 opens and begins to drain blood.

[0046] The working principle of this invention is as follows: When it is necessary to install the drainage tube 1, after fixing the drainage tube 1 at the patient's wound suture site, move the limiting ring 201 to the appropriate position, then stick the fixing sticker 203 on the patient's skin, pull the limiting rope 202 to fix the limiting ring 201 in the appropriate position on the patient's body, move the retaining ring 207, and the irregular ring 206 rotates, so that the adhesive layer provided on the irregular ring 206 contacts the drainage tube 1, thereby fixing the drainage tube 1 with the limiting ring 201, thus preventing the drainage tube 1 from falling off when the patient moves or accidentally touches it.

[0047] After installation, press and hold the ventilation valve 502 by hand to open it, and then press and hold the air bladder 301. After pressing and holding, close the ventilation valve 502 to make the air pressure in the collection cylinder 101 negative, so that the contaminated blood in the patient's wound is transferred to the collection cylinder 101 through the drainage tube 1. When a certain amount of contaminated blood has been collected in the collection cylinder 101, rotate the rotating cover 403 to connect the water hole 402 with the blood drain hole 404, and open the ventilation valve 502 to drain the contaminated blood. After draining, press and hold the air bladder 301 and close the ventilation valve 502, so that the blood drainage measurement operation of the drainage tube 1 is more convenient.

[0048] When the drainage tube 1 is in use, waste blood flows into the suction block 504 and needs to be transferred to the suction cylinder 503. The absorbent cotton 510 absorbs the waste blood and expands. After the absorbent cotton 510 expands, it opens the rubber cover 509 and makes the rubber cover 509 fit against the inner wall of the vent 507, thereby sealing the suction block 504 and preventing waste blood from being transferred to the compression airbag 301 through the suction block 504.

[0049] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A medical postoperative drainage tube assembly, comprising a drainage tube (1), characterized in that: The upper end of the drainage tube (1) is provided with a limiting mechanism (2) fixed at the position of the patient's wound, the lower end of the drainage tube (1) is provided with a collection tube (101) for storing the patient's waste blood, and a pressure control mechanism (3) for generating suction is provided between the drainage tube (1) and the collection tube (101), and a blood discharge mechanism (4) for discharging waste blood is provided at the lower end of the collection tube (101). The limiting mechanism (2) includes a limiting ring (201) slidably disposed on the outer wall of the drainage tube (1). The limiting ring (201) has through holes at both ends. A limiting rope (202) is slidably disposed in the through holes. A fixing sticker (203) is fixedly installed at the end of the limiting rope (202) away from the through holes. A placement groove is provided at the side end of the limiting ring (201). A placement rod (204) is welded in the placement groove. A placement cylinder (205) is rotatably sleeved on the outer wall of the placement rod (204). A shaped ring (206) is fixedly sleeved on the outer wall of the placement cylinder (205). A retaining ring (207) is slidably installed on the outer wall of the limiting ring (201) near the shaped ring (206). The air pressure control mechanism (3) includes a compressed air bag (301), and the compressed air bag (301) is fixedly installed on the outer wall of the mounting ring (102). A vent pipe (302) is fixedly installed at the upper end of the compressed air bag (301), and a venting and waterproofing mechanism (5) is provided at the end of the vent pipe (302) away from the compressed air bag (301). The ventilation and waterproof mechanism (5) includes a ventilation cylinder (501), and the ventilation cylinder (501) is fixedly installed at the end of the ventilation pipe (302) away from the compressed air bag (301). An air suction cylinder (503) is fixedly installed at the end of the ventilation cylinder (501) away from the ventilation pipe (302), and the air suction cylinder (503) is fixedly installed between the one-way valve (105) and the collection cylinder (101). Multiple air suction blocks (504) are arrayed on the inner wall of the air suction cylinder (503). The air suction block (504) has an air vent (507) inside. A limiting frame (508) is provided in the air vent (507). A rubber cover (509) is fixedly installed at the end of the limiting frame (508) near the air suction strip (505). The inner wall of the rubber cover (509) is provided with absorbent cotton (510).

2. A medical postoperative drainage tube assembly according to claim 1, characterized in that: An installation ring (102) is rotatably installed on the outer wall of the collection tube (101). A spring rod (103) is fixedly installed at the upper end of the installation ring (102). A fixing clip (104) is provided at the end of the spring rod (103) away from the installation ring (102). A one-way valve (105) is fixedly installed at the end of the drainage tube (1) close to the collection tube (101).

3. A medical postoperative drainage tube assembly according to claim 1, characterized in that: Each of the suction blocks (504) has a suction strip (505) fixedly installed at its lower end, and the suction strip (505) is fixedly installed on the inner wall of the collection cylinder (101). Multiple suction holes (506) are opened on the outer wall of the suction strip (505).

4. A medical postoperative drainage tube assembly according to claim 1, characterized in that: The blood drainage mechanism (4) includes a blood drainage cylinder (401), and the blood drainage cylinder (401) is fixedly installed at the end of the collection cylinder (101) away from the drainage tube (1). A water passage hole (402) is provided at the end of the blood drainage cylinder (401) away from the collection cylinder (101). A rotating cover (403) is rotatably installed at the end of the blood drainage cylinder (401) away from the collection cylinder (101). A blood drainage hole (404) that matches the water passage hole (402) is provided at the upper end of the rotating cover (403).

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