Anal fistula postoperative dressing change and medicine release device

Abstract

The invention relates to an anal fistula postoperative dressing change and drug delivery device, which comprises a push tube, an outer cylinder and a front end guide tube, a cavity is arranged in the outer cylinder to form an injection and push channel, one end of the outer cylinder is a rotating end, the other end of the outer cylinder is an insertion end, an external thread is arranged on one side of the outer cylinder close to the insertion end, one end of the front end guide tube is a holding end, and a petal-shaped opening is arranged on the other end of the front end guide tube. An internal thread matched with the external thread is arranged in the front-end guide tube, a cavity is formed in the middle of the pushing tube, one end of the pushing tube is a pushing end, the other end of the pushing tube is a piston end, the piston end of the pushing tube is inserted from one side of the rotating end of the outer cylinder, and the piston end of the pushing tube is in sliding connection with the outer cylinder. The holding end of the front-end guide tube is in threaded connection with the outer cylinder, and the insertion end of the outer cylinder is accommodated in the front-end guide tube. The device is convenient to operate, the dressing change depth can be controlled, the possibility of wound infection and anal fistula relapse is reduced, the wound healing period is shortened, and the pain of a patient is relieved.

Description

Technical Field

[0001] The present invention relates to the field of anorectal surgery nursing, and in particular to a dressing changing and medicine dispensing device after anal fistula surgery. Background Art

[0002] Anal fistula is a common anorectal condition. Once formed, it generally does not heal on its own, and surgery is the only curative option. Some patients experience poor clinical outcomes and may even develop surgical complications such as anal deformity, seriously impacting their quality of life. Therefore, dressing changes after anal fistula surgery are crucial for promoting wound healing, preventing infection, and reducing complications. Strictly following the doctor's instructions and mastering the correct procedure and frequency are essential.

[0003] The selection of instruments for postoperative dressing changes for anal fistula surgery focuses on "cleaning, drainage, and wound protection." These instruments should be prepared and used under the guidance of a physician or nurse. Patients with complex anal fistulas, in particular, require regular follow-up visits for wound assessment by professionals to ensure effective dressing changes and reduce the risk of recurrence. After discharge, dressing changes are typically performed by nearby medical institutions, or family members receive pre-discharge training to ensure timely dressing changes for wounds around and within the anus after defecation.

[0004] The core sterile dressing tools for the current anal fistula dressing change device include: (1) a sterile dressing pack, which contains: sterile forceps and vascular clamps (two pairs, one for contacting contaminated items and one for clamping sterile items to avoid cross-contamination), a sterile curved tray (for placing sterile cotton balls, drainage strips, etc.), and sterile gauze (of different specifications, used to cover the wound). (2) disposable sterile gloves, which must be worn throughout the process to prevent hand bacteria from contaminating the wound. Currently, medical rubber gloves are more commonly used (powder-free gloves are preferred to reduce irritation).

[0005] At present, the key operating step of dressing change after anal fistula surgery is to place the sterile disinfected cotton ball and the changed dressing strip into the anus with the help of sterile equipment. The specific operation is carried out through the cooperation of tweezers and vascular clamps. However, this operation requires high placement skills and depth judgment. It usually requires experienced anorectal medical personnel to ensure the depth and effect of disinfection and drug placement. Ordinary medical staff and family members who have received preliminary training often find it difficult to control the depth of drug placement when performing dressing change and drug placement in the anus, which often makes it difficult to ensure the effect.

[0006] Especially for patients who live far from the surgical hospital after discharge, it is difficult to obtain professional dressing changes in time after a sitz bath. Moreover, young and middle-aged people account for a high proportion of anal fistula patients, and their work arrangements after discharge are prone to conflict with the need for dressing changes in terms of time and space. These factors lead to untimely dressing changes or unguaranteed dressing quality, especially difficulties in judging the depth of the operation, making it difficult for the medicine strip to reach the wound surface, which in turn leads to problems such as prolonged wound healing time and infection in the anus. In severe cases, it may even lead to recurrence of anal fistula, forcing the patient to undergo surgery again. Summary of the Invention

[0007] The purpose of the present invention is to provide a dressing changing and drug dispensing device after anal fistula surgery, which is easy to operate, can control the dressing changing depth, and reduces the pain of patients.

[0008] To achieve this object, the present invention adopts the following technical solutions:

[0009] The outer tube is threadedly connected to the outer tube, and the insertion end of the outer tube is received in the front guide tube. In the working state, the outer tube is rotated so that the insertion end of the outer tube extends out from the petal-shaped opening of the front guide tube.

[0010] In this embodiment, the sterile tampon includes a head end that matches the size of the injection and push channel and a pull line fixedly connected to the head end.

[0011] In this embodiment, the outer diameter of the piston end of the push tube is larger than the outer diameter of the pushing end of the push tube, the outer diameter of the piston end of the push tube matches the inner diameter of the outer tube, and the inner diameter of the push tube is smaller than the outer diameter of the sterile tampon head end; the push tube is slidably connected to the outer tube through the piston end.

[0012] In this embodiment, the outer cylinder is provided with a first scale arranged along the axial direction, and the zero mark of the first scale is set at the end of the insertion end of the outer cylinder.

[0013] In this embodiment, the outer edge of the end portion of the insertion end of the outer cylinder is a smooth arc.

[0014] In this embodiment, the petal-shaped opening on the front guide tube is semicircular.

[0015] In this embodiment, a second scale for determining the depth of insertion of the front end guide tube into the anus is provided on the front end guide tube.

[0016] Due to the above structure, the present invention has the following advantages:

[0017] 1. This device can accurately push the sterile tampon with medicine into the body from the anus, and can control the penetration depth of the sterile tampon with medicine. The medicine soaked or applied on the sterile tampon can accurately reach the patient's site, reducing the difficulty of dressing change after anal fistula surgery, improving the effect of dressing change, shortening the healing time of the wound in the anus, reducing infection, and reducing the loss of medicine caused by clamping and scraping when clamping the gauze with tweezers or directly putting the medicine with the sterile tampon through the anal sphincter.

[0018] 2. The outer tube of the device is provided with a first scale and the front guide tube is provided with a second scale. The insertion depth of the outer tube is controlled by the first scale, and the insertion depth of the front guide tube is controlled by the second scale, which greatly improves the accuracy of the operation, reduces the pain of the patient in changing the dressing, and realizes accurate drug placement.

[0019] 3. The petal-shaped opening of the front guide tube of this device is initially closed, and a semicircular structure is formed on the outside. The semicircular structure can play a guiding role, facilitating the insertion of the front guide tube from the anus to prevent damage to the human body; the edge of the insertion end of the outer tube is processed into a smooth arc to prevent the outer tube from entering the human body and causing damage to the human body during operation. The front guide tube always remains in the sphincter position during use, serving to open the sphincter and assist the insertion of the outer tube.

[0020] 4. The device has a reasonable structural design and clear operating steps. The outer cylinder is extended and retracted by rotating the front guide tube, and the sterile cotton strip is pushed into the patient's area using the push tube. The entire operation process is simple and easy to understand, which reduces the operating difficulty for ordinary medical staff and their families, and helps to ensure the effectiveness of dressing changes.

[0021] To sum up, the present invention has a simple structure and can well solve the convenience and depth of entry of the sterile tampon for changing the dressing in the anus. It can also further ensure the accurate depth of placement of the sterile tampon after applying the medicine, and retain the amount of medicine in the drug placement process to the greatest extent. At the same time, this device can also well solve the difficulty of dressing change operations and the accuracy of drug placement depth for non-anorectal specialist medical staff and reduce the loss of medicine reaching the wound surface, thereby reducing the possibility of wound infection and recurrence of anal fistula caused by personnel operation quality and untimely dressing change after defecation and shortening the wound healing cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the initial state of the present invention.

[0023] Figure 2 It is a structural schematic diagram of the depth adjustment state of the present invention.

[0024] Figure 3 It is a structural schematic diagram of the sterile tampon of the present invention in the pushing-out state.

[0025] Figure 4 It is a structural schematic diagram of the push tube of the present invention.

[0026] Figure 5 It is a schematic structural diagram of the sterile tampon of the present invention.

[0027] Figure 6 It is a structural schematic diagram of the outer tube of the present invention.

[0028] Figure 7 It is a structural schematic diagram of the front end guide tube of the present invention.

[0029] In the accompanying drawings, 1. push tube; 11. pushing end; 12. piston end; 2. sterile cotton strip; 21. head end; 22. pull line; 3. outer tube; 31. tube body; 32. rotating end; 33. first scale; 34. external thread; 35. insertion end; 4. front end guide tube; 41. holding end; 42. petal-shaped opening; 43. second scale. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0031] like Figures 1 to 7 As shown, the present invention provides a dressing change and drug dispensing device after anal fistula surgery, comprising a push tube 1, an outer tube 3 and a front guide tube 4. A cavity is provided inside the outer tube 3 to form an injection and push channel. One end of the outer tube 3 is a rotating end 32, and the other end is an insertion end 35. A sterile cotton strip 2 is arranged in the injection and push channel and close to the insertion end 35. An external thread 34 is provided on the outer wall of the outer tube 3, on the side close to the insertion end 35. One end of the front guide tube 4 is a holding end 41, and the other end is provided with a petal-shaped opening 42. 4 is provided with an internal thread matching the external thread 34, and a cavity is provided in the middle of the push tube 1. One end of the push tube 1 is a pushing end 11, and the other end is a piston end 12. The piston end 12 of the push tube 1 is inserted from the side of the rotating end 32 of the outer tube 3, and the piston end 12 of the push tube 1 is slidably connected to the outer tube 3. In the initial state, the holding end 41 of the front guide tube 4 is threadedly connected to the outer tube 3, and the insertion end 35 of the outer tube 3 is received in the front guide tube 4, so that the petal-shaped opening 42 of the front guide tube 4 is at the front end;

[0032] like Figure 5As shown, the sterile tampon 2 includes a head end 21 that matches the size of the injection channel and a pull line 22 that is fixedly connected to the head end 21 .

[0033] like Figure 4 As shown, the outer diameter of the piston end 12 of the push tube 1 is larger than the outer diameter of the pushing end 11 of the push tube 1, and the outer diameter of the piston end 12 of the push tube 1 matches the inner diameter of the outer tube 3. The inner diameter of the push tube 1 is smaller than the outer diameter of the head end 21 of the sterile tampon 2 and larger than the outer diameter of the pull wire 22. The push tube 1 is slidably connected to the outer tube through the piston end 12, and the inner diameter of the push tube 1 facilitates the passage and exit of the pull wire 22 of the sterile tampon 2.

[0034] like Figure 6 As shown, the outer tube 3 is provided with a first scale 33 along the axial direction to display the axial length of the outer tube 3; the first scale 33 uses the end of the insertion end 35 of the outer tube 3 as the zero scale; in this way, the operator can clearly and intuitively understand the depth of insertion of the outer tube 3 into the anus, thereby achieving accurate drug placement; at the same time, the end edge of the insertion end 35 of the outer tube 3 is processed into a smooth arc to prevent the outer tube 3 from causing damage to the human body after insertion;

[0035] like Figure 7 As shown, one end of the front guide tube 4 is a gripping end 41, and the other end is provided with a petal-shaped opening 42, which is semicircular. A second scale 43 is provided on the front guide tube 4, and the second scale 43 is a reference scale. The second scale 43 is used to determine the depth of the front guide tube 4 inserted into the anus. In the initial state, the petal-shaped opening 42 is closed, and a semicircular arc is formed outside the petal-shaped opening 42, thereby facilitating the insertion of the front guide tube 4 from the anus. At the same time, the front guide tube 4 is maintained at the position of the sphincter to achieve the subsequent extension of the outer tube.

[0036] Furthermore, the device can be provided in a variety of sizes and models according to the different applicable populations, such as children and adults, to ensure that the device can achieve the best effect in different situations.

[0037] The specific operation of this device is as follows:

[0038] When in working state, first rotate the front end guide tube 4 to separate from the outer tube 3, then soak the head end 21 of the sterile tampon 2 in medicine or apply medicine, and then install it in the injection and push channel of the outer tube 3 with tweezers or other sterilized tools, and make the pull wire 22 pass through the inner cavity of the push tube 1 so that the push end 11 of the push tube 1 extends; at this time, the head end 21 of the sterile tampon 2 is clamped in the injection and push channel of the outer tube 3, and then rotate the front end guide tube 4 to make the front end guide tube 4 installed on the outer tube 3 reset, so that the insertion end 35 of the outer tube 3 is received in the front end guide tube 4;

[0039] After completing the above preparations, insert the front guide tube 4 from the anus so that the holding end 41 of the front guide tube 4 is outside the anus and the petal-shaped opening 42 of the front guide tube 4 is inside the body; then the device enters the depth adjustment state, such as Figure 2 As shown, at this time, the operator holds the holding end 41 of the front guide tube 4 with one hand and rotates the outer tube 3 with the other hand, so that the insertion end 35 of the outer tube 3 extends from the petal-shaped opening 42. The operator observes the first scale 33. When the first scale 33 on the outer tube 3 reaches the set value, the device enters the sterile tampon 2 pushing-out state. At this time, the operator no longer rotates the outer tube 3, but pushes the push tube 1 to slide in the outer tube 3 through the push end 11, thereby pushing the head end 21 of the sterile tampon 2 from the injection and pushing channel of the outer tube 3 into the body; finally, after rotating the outer tube to reset, the front guide tube 4 of the device is pulled out from the anus. At this time, the pull line 22 of the sterile tampon 2 is exposed outside the body, which is convenient for subsequent pulling out.

[0040] The following describes the steps involved in the actual implementation of this device: (1) Before discharge, the doctor assesses the wound requiring dressing change and clearly informs the doctor of the required dressing depth and dressing device, as well as the types of disinfectants and medications required. (2) All necessary sterile dressing devices are prepared. (3) The device is used to disinfect and change the dressing of the wound inside and outside the anus.

[0041] The detailed implementation process is as follows:

[0042] Step 1. Before discharge, the doctor will assess the wound that requires dressing change and clearly inform the patient of the dressing change depth and dressing device, as well as the types of disinfection and medication required.

[0043] Step 2: After determining the conditions of the wounds outside and inside the anus, select the appropriate model of this device according to the wound conditions. The dressing bag for the external anal wound should be a universal sterile dressing bag.

[0044] Step 3: Determine the depth of the anal dressing device. In this embodiment, the device is used for anal fistula wounds with an anal diameter of 1-3 cm and anal wound depths ranging from 3 cm for low-position anal fistula wounds to 10 cm for high-position anal fistula wounds.

[0045] Step 4. Wear sterile gloves, take the device, rotate the front guide tube, separate the front guide tube 4 from the outer tube 3, then place the sterile cotton strip 2 soaked or coated with medicine into the injection channel of the outer tube 3, and then rotate the front guide tube to reset.

[0046] Step 5: The operator holds the skin around the anus with one hand and operates the device with the other hand, bringing one end of the semicircular petal-shaped opening 42 of the front guide tube close to the anus and slowly pushing it in until the second scale 43 of the front guide tube is just placed at the insertion port of the anus.

[0047] Step 6. The operator then holds the holding end 41 of the front guide tube with one hand and rotates the outer tube 3 with the other hand. Using the threaded structure, the insertion end 35 of the outer tube 3 extends from the petal-shaped opening 42. The operator observes the first scale 33 until the first scale 33 on the outer tube 3 reaches the set value, indicating that the insertion end 35 of the outer tube 3 reaches the set depth into the body.

[0048] Step 7: Push the push tube 1 to push the sterile tampon 2 with medicine into the anus, then rotate the outer tube to reset it, and then gently pull out the front guide tube 4, leaving only the sterile tampon 2 with medicine in the body.

[0049] Step 8: Control the time the sterile tampon 2 with the medicine is placed in the body as needed to allow the disinfectant to fully contact the wound inside the anus.

[0050] Step 9: Slowly pull out the sterile tampon 2 from the anus through the pull string 22 at the tail of the sterile tampon 2 with medicine and discard it, thus completing the anal disinfection process.

[0051] Step 10. Repeat steps 4-9 above until the required number of disinfections is completed.

[0052] Step 11: Apply the desired medication on the sterile tampon 2, and repeat steps 4-7 to complete the placement of the medicated sterile tampon 2 in the anus.

[0053] Step 11: Control the placement time of the sterile tampon 2 with the medicine according to needs. Before the next bowel movement or dressing change, use step 9 to remove and discard the sterile tampon 2 to complete the medicine retention process.

[0054] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A dressing change and drug delivery device after anal fistula surgery, characterized in that: It includes a push tube, an outer tube and a front-end guide tube. A cavity is provided inside the outer tube to form an injection and push channel that matches the size of the sterile cotton strip. One end of the outer tube is a rotating end, and the other end is an insertion end. The outer tube is provided with an external thread on the side close to the insertion end, one end of the front-end guide tube is a holding end, and the other end is provided with a petal-shaped opening. The front-end guide tube is provided with an internal thread matching the external thread. A cavity is provided in the middle of the push tube, one end of the push tube is a pushing end, and the other end is a piston end. The piston end of the push tube is inserted from the rotating end side of the outer tube, and the piston end of the push tube is slidably connected to the outer tube. In the initial state, the holding end of the front-end guide tube is threadedly connected to the outer tube, and the insertion end of the outer tube is received in the front-end guide tube. In the working state, the outer tube is rotated to make the insertion end of the outer tube extend from the petal-shaped opening of the front-end guide tube.

2. The dressing change and drug dispensing device after anal fistula surgery according to claim 1, characterized in that: The sterile cotton strip comprises a head end that matches the size of the injection and pushing channel and a pull line that is fixedly connected to the head end.

3. The dressing change and drug dispensing device after anal fistula surgery according to claim 2, characterized in that: The outer diameter of the piston end of the push tube is larger than the outer diameter of the pushing end of the push tube, the outer diameter of the piston end of the push tube matches the inner diameter of the outer tube, and the inner diameter of the push tube is smaller than the outer diameter of the sterile tampon head end; the push tube is slidably connected to the outer tube through the piston end.

4. The dressing change and drug dispensing device after anal fistula surgery according to claim 1, characterized in that: The outer cylinder is provided with a first scale arranged along the axial direction; the zero scale of the first scale is set at the end of the insertion end of the outer cylinder.

5. The dressing change and drug dispensing device after anal fistula surgery according to claim 4, characterized in that: The outer edge of the end portion of the insertion end of the outer cylinder is a smooth arc.

6. The dressing changing and drug dispensing device after anal fistula surgery according to claim 4, characterized in that: The front end guide tube is provided with a second scale for determining the depth of the front end guide tube inserted into the anus.

7. The dressing change and drug dispensing device after anal fistula surgery according to claim 1, characterized in that: The petal-shaped opening on the front end guide tube is semicircular.

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