An in-vitro double cannula flush device

Abstract

The utility model discloses a kind of double cannula flushing devices in vitro, belong to extracorporeal perfusion technical field.A kind of double cannula flushing devices in vitro, it includes device main body, device main body includes and the cooperation of patient incision place adhering component, adhering component includes cover patient incision place and is formed with inner cavity in cover body, cover body place is equipped with outer tube with one end intruding inner cavity, another end of outer tube is equipped with flushing component, flushing component is used to input flushing liquid to patient incision place;Outer tube is formed with the conveying channel of being communicated with inner cavity inside, conveying channel is equipped with inner tube with one end intruding inner cavity, another end of inner tube through outer tube outer wall is equipped with suction component, suction component is used to keep sustained low negative pressure suction and extract the contaminated liquid of patient affected area.Compared with prior art, the device can sustain low negative pressure suction and active drainage, and surrounding tissue damage stimulation is smaller, and drainage tube blockage phenomenon is not easy to cause, and the flow is large, so drainage is more sufficient, more effective.

Description

Technical Field

[0001] This utility model relates to the field of external flushing technology, and more specifically, to an external double-tube flushing device. Background Technology

[0002] Conventional double-lumen abdominal cannulas are generally used for intra-abdominal irrigation and drainage. However, if fluids from the digestive tract, such as the small intestine or colon, leak through incisions or external drainage tubes, existing double-lumen abdominal cannulas are usually unable to thoroughly irrigate and drain them. This can lead to digestive fluids corroding the skin and incisions, causing tissue to stagnate and affecting patient prognosis. To address this challenging clinical problem, we have developed an external double-lumen irrigation and drainage device. Utility Model Content

[0003] This invention provides an external double-tube flushing device that can overcome some or all the defects of the prior art.

[0004] According to the present invention, an external double-tube flushing device includes a device body, the device body includes a fitting component that fits with the patient's incision, the fitting component includes a cover that covers the patient's incision, the cover has an inner cavity, an outer tube with one end extending into the inner cavity is provided at the cover, and a flushing component is provided at the other end of the outer tube, the flushing component is used to introduce flushing fluid into the patient's incision. The outer tube has a delivery channel that communicates with the inner cavity. The delivery channel has an inner tube that extends into the inner cavity at one end. The other end of the inner tube that penetrates the outer wall of the outer tube is equipped with a suction component. The suction component is used to maintain continuous low negative pressure suction to extract contaminated fluid from the patient's affected area.

[0005] The disclosed external double-tube irrigation device covers the patient's incision with the cover of the fitting component and fits in close contact with the skin around the incision to form a relatively closed space. On the one hand, it prevents the irrigation fluid from seeping into the surrounding normal skin, avoiding the corrosive irritation of the skin by the irrigation fluid; on the other hand, it reduces the entry of external bacteria and other contaminants into the incision, reducing the risk of incision infection.

[0006] The low-negative-pressure suction of the suction component can promptly remove contaminated fluids from the incision site, such as diluted digestive juices and exudates. Continuous suction prevents fluid accumulation at the incision site, avoiding wound dehiscence or delayed healing due to fluid pressure, while also reducing the breeding ground for bacteria and lowering the possibility of infection. Compared with existing technologies, this device can continuously suction with low negative pressure and actively drain, causing less damage and irritation to surrounding tissues and less likely to cause drainage tube blockage. It has a large drainage volume, resulting in more thorough and effective drainage. It is suitable for infected wounds, gastrointestinal fistulas, and wounds requiring prolonged continuous suction where digestive tract fluid flows out through external incisions or sinus tracts, and where there is a large drainage volume and heavy contamination.

[0007] Preferably, the fitting component also includes a hydrocolloid adhesive pad disposed on the bottom wall of the cover, the hydrocolloid adhesive pad being used to fit against the skin surrounding the patient's incision to achieve closure of the patient's incision.

[0008] The hydrocolloid adhesive pads allow for better adaptation to irregular skin surfaces, filling tiny gaps between the cover and the skin, thus achieving effective closure of the patient's incision.

[0009] Understandably, the adhesive properties of the hydrocolloid pad can firmly fix the entire bonding assembly to the patient's incision site. During irrigation and suction, the main body of the device will not easily shift or fall off, ensuring the stability and continuity of irrigation and suction operations.

[0010] Understandably, hydrocolloid adhesive pads have a certain degree of softness and elasticity, which can reduce the direct pressure and friction of the cover on the skin.

[0011] Preferably, both the outer tube and the inner tube are provided with connectors at the ends away from the cover, and the flushing assembly includes a reservoir for storing flushing fluid, with an infusion tube at the reservoir connected to the connector at the outer tube.

[0012] The above structure facilitates the delivery of flushing fluid from the storage tank to the outer tube for flushing via the infusion tube. The connection head allows for flexible replacement and combination of the flushing components according to actual needs. The infusion tube can be easily disassembled from the connection head to replace the required infusion tube, thus improving the practicality of the device.

[0013] Preferably, the suction assembly includes a suction device and a negative pressure tank. The negative pressure tank is provided with a drain pipe connected to the connector at the inner tube and a connecting pipe connected to the suction device. The drain pipe and the connecting pipe have a height difference. The connecting pipe is located at the bottom of the negative pressure tank, and the drain pipe is located at the top of the negative pressure tank.

[0014] The suction device is connected to the negative pressure tank via a connecting tube, creating a continuous low negative pressure environment inside the tank. The inner tube is connected to the drain pipe via a connector. Under negative pressure, contaminated fluids from the patient's affected area can be smoothly drawn into the negative pressure tank through the inner tube and the drain pipe. This continuous low negative pressure suction can promptly remove contaminants such as digestive fluids and exudates from the incision site.

[0015] Understandably, the drain pipe is located at the top of the negative pressure tank, while the connecting pipe is located at the bottom, creating a height difference between the two. This design effectively prevents contaminated liquid sucked into the negative pressure tank from flowing back into the connecting pipe. When contaminated liquid enters the negative pressure tank through the drain pipe, it will settle at the bottom due to gravity. The connecting pipe, being positioned higher above the bottom, prevents liquid from entering, thus protecting the suction device from contamination and damage, and extending its lifespan.

[0016] Preferably, a negative pressure gauge is provided at the connecting pipe to display the negative pressure value.

[0017] The negative pressure gauge displays the real-time negative pressure value within the suction tank. During suction, by observing the gauge reading, medical staff can promptly understand the negative pressure generated by the suction unit. Because different patients have different conditions and incision sites, an appropriate negative pressure value is crucial for effectively suctioning contaminated fluids. Real-time monitoring helps ensure that the suction process is conducted under stable and suitable negative pressure conditions.

[0018] Preferably, both the outer tube and the inner tube have a leakage hole formed on the outer wall at the end that extends into the inner cavity.

[0019] The above structure effectively prevents contaminating liquid residues from clogging the outer and inner pipes. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of an external double-tube flushing device. Detailed Implementation

[0021] To further understand the content of this utility model, a detailed description of the utility model is provided in conjunction with the embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the utility model.

[0022] Example 1 Please see Figure 1 This embodiment provides an external double-tube irrigation device, which includes a device body 100. The device body 100 includes a fitting component that fits with the patient's incision. The fitting component includes a cover 110 that covers the patient's incision. An inner cavity is formed inside the cover 110. An outer tube 130 is provided at one end of the cover 110 that extends into the inner cavity. An irrigation component is provided at the other end of the outer tube 130. The irrigation component is used to introduce irrigation fluid into the patient's incision. The outer tube 130 has a delivery channel that communicates with the inner cavity. The delivery channel has an inner tube 140 with one end extending into the inner cavity. The other end of the inner tube 140 that penetrates the outer wall of the outer tube 130 is provided with a suction component. The suction component is used to maintain continuous low negative pressure suction to extract contaminated fluid from the patient's affected area.

[0023] The disclosed external double-tube irrigation device covers the patient's incision with the cover 110 of the fitting component and fits against the skin around the incision to form a relatively closed space. On the one hand, it prevents the irrigation fluid from seeping into the surrounding normal skin, avoiding the corrosive irritation of the skin by the irrigation fluid; on the other hand, it reduces the entry of external bacteria and other contaminants into the incision, reducing the risk of incision infection.

[0024] The low-negative-pressure suction of the suction component can promptly remove contaminated fluids from the incision site, such as diluted digestive juices and exudates. Continuous suction prevents fluid accumulation at the incision site, avoiding wound dehiscence or delayed healing due to fluid pressure, while also reducing the breeding ground for bacteria and lowering the possibility of infection. Compared with existing technologies, this device can continuously suction with low negative pressure and actively drain, causing less damage and irritation to surrounding tissues and less likely to cause drainage tube blockage. It has a large drainage volume, resulting in more thorough and effective drainage. It is suitable for infected wounds, gastrointestinal fistulas, and wounds requiring prolonged continuous suction where digestive tract fluid flows out through external incisions or sinus tracts, and where there is a large drainage volume and heavy contamination.

[0025] In this embodiment, the bonding component also includes a hydrocolloid adhesive pad 120 disposed on the bottom wall of the cover 110. The hydrocolloid adhesive pad 120 is used to cooperate with the skin around the patient's incision to achieve closure of the patient's incision.

[0026] The hydrocolloid adhesive pad 120 can better adapt to the irregular surface of the skin and fill the tiny gaps between the cover 110 and the skin, thereby achieving effective closure of the patient's incision.

[0027] Understandably, the adhesive properties of the hydrocolloid adhesive pad can firmly fix the entire bonding assembly to the patient's incision site. During irrigation and suction, the main body of the device 100 will not easily shift or fall off, ensuring the stability and continuity of the irrigation and suction operation.

[0028] Understandably, the hydrocolloid adhesive pad 120 has a certain degree of softness and elasticity, which can reduce the direct pressure and friction of the cover 110 on the skin.

[0029] In this embodiment, both the outer tube 130 and the inner tube 140 are provided with connectors 150 at the ends away from the cover 110. The flushing assembly includes a storage tank 170 for storing flushing fluid, and the storage tank 170 is provided with an infusion tube 171 that connects to the connector 150 at the outer tube 130.

[0030] The liquid storage tank 170 is equipped with a liquid pump, and the infusion pipe 171 is equipped with a drip rate regulator.

[0031] The above structure facilitates the delivery of flushing fluid from the storage tank 170 to the outer tube 130 via the infusion pipe 171 for flushing. The connection 150 allows for flexible replacement and combination of the flushing components according to actual needs. The infusion pipe 171 can be easily removed from the connection 150 to replace the required infusion pipe 171, thus improving the practicality of the device.

[0032] In this embodiment, the suction assembly includes a suction device and a negative pressure tank 160. The negative pressure tank 160 is provided with a drain pipe 161 connected to the connector 150 at the inner tube 140 and a connecting pipe 162 connected to the suction device. The end of the drain pipe 161 extending into the negative pressure tank 160 and the end of the connecting pipe 162 extending into the negative pressure tank 160 have a height difference. The connecting pipe 162 is located at the bottom of the negative pressure tank 160, and the drain pipe 161 is located at the top of the negative pressure tank 160.

[0033] The suction device is connected to the negative pressure tank 160 via connecting tube 162, creating a continuous low negative pressure environment within the tank 160. The inner tube 140 is connected to the drain tube 161 via connector 150. Under negative pressure, contaminated fluid from the patient's affected area can be smoothly drawn into the negative pressure tank 160 through the inner tube 140 and drain tube 161. This continuous low negative pressure suction can promptly remove digestive fluids, exudate, and other contaminants from the incision site.

[0034] Understandably, the drain pipe 161 is located at the top of the negative pressure tank 160, while the connecting pipe 162 is located at the bottom of the negative pressure tank 160, creating a height difference between the two. This design effectively prevents contaminated liquid sucked into the negative pressure tank 160 from flowing back into the connecting pipe 162. When contaminated liquid enters the negative pressure tank 160 through the drain pipe 161, it will settle at the bottom of the tank due to gravity. The connecting pipe 162, being positioned higher above the bottom, prevents liquid from entering the connecting pipe 162, thus protecting the suction device from contamination and damage, and extending its service life.

[0035] In this embodiment, a negative pressure gauge 163 is provided at the connecting pipe 162, and the negative pressure gauge 163 is used to display the negative pressure value.

[0036] The negative pressure gauge 163 displays the negative pressure value within the negative pressure tank 160 in real time. During suctioning, by observing the reading on the negative pressure gauge 163, medical staff can promptly understand the negative pressure generated by the suction assembly. Since different patients have different conditions and incisions, an appropriate negative pressure value is crucial for effectively suctioning contaminated fluids. Real-time monitoring helps ensure that the suctioning process is carried out under stable and suitable negative pressure conditions.

[0037] In this embodiment, both the outer tube 130 and the inner tube 140 have leakage holes formed on the outer wall of the end that extends into the inner cavity.

[0038] The above structure effectively prevents contaminating liquid residues from clogging the outer tube 130 and the inner tube 140.

[0039] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, all of which do not exceed the protection scope of this application.

[0040] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the embodiments shown are only part of the embodiments of the present invention. The actual structure is not limited to this. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An external double-tube flushing device, characterized in that, The device includes a main body (100), which includes a fitting component that fits with the patient's incision. The fitting component includes a cover (110) that covers the patient's incision. The cover (110) has an inner cavity. The cover (110) is provided with an outer tube (130) that extends into the inner cavity at one end. The other end of the outer tube (130) is provided with a flushing component, which is used to introduce flushing fluid into the patient's incision. The outer tube (130) has a delivery channel that communicates with the inner cavity. The delivery channel is provided with an inner tube (140) that extends into the inner cavity at one end. The inner tube (140) is provided with a suction component at the other end of the outer tube (130) that penetrates the outer wall of the outer tube (130). The suction component is used to maintain continuous low negative pressure suction to extract contaminated liquid from the patient's affected area.

2. The external double-tube flushing device according to claim 1, characterized in that: The fitting assembly also includes a hydrocolloid adhesive pad (120) located on the bottom wall of the cover (110), which is used to fit with the skin around the patient's incision to achieve closure of the patient's incision.

3. The external double-tube flushing device according to claim 1, characterized in that: Both the outer tube (130) and the inner tube (140) are provided with connectors (150) at the ends away from the cover (110). The flushing assembly includes a reservoir (170) for storing flushing fluid, and a delivery tube (171) is provided at the reservoir (170) to connect with the connector (150) at the outer tube (130).

4. The external double-tube flushing device according to claim 3, characterized in that: The suction assembly includes a suction device and a negative pressure tank (160). The negative pressure tank (160) is provided with a drain pipe (161) connected to the connector (150) at the inner tube (140) and a connecting pipe (162) connected to the suction device. The drain pipe (161) has a height difference with the end of the connecting pipe (162) that extends into the negative pressure tank (160). The connecting pipe (162) is located at the bottom of the negative pressure tank (160), and the drain pipe (161) is located at the top of the negative pressure tank (160).

5. An external double-tube flushing device according to claim 4, characterized in that: A negative pressure gauge (163) is provided at the connecting pipe (162), and the negative pressure gauge (163) is used to display the negative pressure value.

6. The external double-tube flushing device according to claim 1, characterized in that: Both the outer tube (130) and the inner tube (140) have leakage holes formed on the outer wall of the end that extends into the inner cavity.

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