Auxiliary Application of Disposable Expandable Corrugated Irrigator in Anorectal Diseases

The disposable medical irrigator shown in the image consists of a squeezable expandable liquid reservoir and a rounded, elongated catheter. Although commonly used as gynecological irrigation supplies, its gentle low-pressure water flow and blunt, edge-free catheter design make it highly suitable for home care and adjunctive treatment of various anorectal conditions such as hemorrhoids, anal fissures, post-anal surgery recovery, and constipation. Its advantage lies in deep irrigation and medication delivery, effectively overcoming the limitations of sitz baths and wet toilet paper cleaning, which often fail to achieve thorough cleansing. 

       From the perspective of product design tailored to core advantages in anorectal care: the closed, rounded tip of the tube prevents scratching of inflamed hemorrhoidal mucosa or fresh surgical wounds during insertion; the corrugated soft bottle allows users to independently control pressure, delivering a gentle, low-pressure water stream that avoids irritating wounds and triggering bleeding or severe pain; the extended tube reaches into the anal canal and lower rectum, effectively addressing the challenge of cleaning fecal residue trapped in perianal folds; the single-use sterile packaging made of PE material eliminates cross-infection risks associated with repeated use of sitz bath devices, making it highly convenient for travel or hospital stays. 

       In various practical scenarios involving anorectal conditions, the device serves different purposes. For individuals with internal, external, or mixed hemorrhoids, it can replace dry toilet paper after defecation by gently inserting 1–2 cm into the rectum and rinsing with warm water at 38–40°C, effectively removing residual fecal matter from folds and reducing irritation and hemorrhoidal congestion caused by prolonged fecal stimulation. When used in combination with diluted herbal sitz bath solutions, rehabilitation solution, or low-concentration potassium permanganate solution, the medication can directly penetrate the affected areas of internal hemorrhoids, achieving hemostasis, astringency, swelling reduction, and pain relief, thereby alleviating symptoms such as rectal bleeding and anal fullness. This method offers significantly deeper therapeutic effects compared to traditional sitz baths that only immerse the anal opening. 

       For patients with fresh or chronic anal fissures, dry paper wiping can easily tear the ulcerated wound. Warm water irrigation under low pressure provides a friction-free cleaning method, reducing the tearing pain after defecation. Instilling rehabilitation solution or traditional Chinese medicine decoction for tissue regeneration directly covers the fissure, relaxes the spastic anal sphincter, and accelerates granulation tissue repair. If hard stools are likely to cause wound splitting, a small amount of warm saline can be instilled to soften fecal masses at the anterior rectum, thereby lowering the risk of tearing during bowel movements. 

       Postoperative care for anorectal conditions is the core application scenario for this irrigation device. After surgery for hemorrhoids, anal fistulas, or perianal abscesses, wounds remain exposed for 1–2 weeks, with significant bleeding and exudate, posing a high risk of infection. Using the irrigator after defecation thoroughly removes fecal matter and pus adhering to the wound surface, preventing prolonged exposure to contaminants that could trigger infection or abnormal granulation tissue growth. After thorough rinsing, applying ointment or inserting suppositories allows medications to directly adhere to the wound bed, significantly improving absorption efficiency. Irrigating with 40°C warm saline solution also provides soothing warmth to the anal sphincter muscles, reducing postoperative edema, heaviness, and pain. The gentle flow avoids impacting ligated hemorrhoid sites and causing massive bleeding, while consistent, proper use over time helps minimize issues such as wound scabbing and adhesions. 

       It can be used as a simple low-pressure enema tool for individuals with mild functional constipation, postpartum or elderly patients experiencing difficulty defecating. Prepare 37–39°C warm saline solution or diluted glycerin, insert the tube gently 3–4 cm into the rectum, and slowly instill 50–100 ml of liquid. Retain for 5 to 10 minutes to gently soften hard fecal matter in the rectum and stimulate bowel movement. Compared to suppositories, it causes less irritation and is suitable for those with sensitive intestines; however, long-term or frequent use should be avoided to prevent bowel dependency. Additionally, for patients with perianal eczema or persistent perianal itching, warm water irrigation helps remove sweat and residual feces from skin folds. Combining this with herbal decoctions that dry dampness can reduce recurrence of itching and maintain perianal hygiene. 

       Proper operating procedures directly affect comfort and safety: solution temperature must be strictly maintained between 37–40°C, as higher temperatures may worsen perianal congestion and edema. Herbal decoctions and potassium permanganate solutions should be diluted and filtered according to medical instructions. The patient should preferably lie on their side with knees bent to reduce anal tension. Apply a thin layer of petroleum jelly to lubricate the tip of the catheter; for anal fissures or postoperative wounds, insert only 1 cm shallowly, while for healthy anorectal areas, insertion should not exceed 3 cm. Gently squeeze the bottle at a steady pace—never apply forceful pressure that creates high-pressure water flow. Retain the medication for 5–10 minutes before draining. Discard the device immediately after single use; reuse is prohibited. 

       Use is strictly contraindicated in cases of active rectal bleeding, intestinal perforation, severe ulcers, or acute abdominal conditions. In late pregnancy, deep instillation of medication should only be performed under the guidance of obstetric and proctological physicians to avoid stimulating uterine contractions. Irrigation serves solely as an adjunctive care measure and cannot replace standard medications or surgical treatment. Immediate medical attention is required if persistent heavy rectal bleeding, irreducible prolapse, or severe pain occurs. Frequent long-term use of irrigating solutions may disrupt the intestinal microbiome; therefore, warm water should be preferred for routine cleansing, and the frequency of solution use should be minimized. 

       Compared to traditional sitz baths and wet wipes, the main advantage of this irrigator is its ability to clean deep within the anal canal without causing friction or damaging the affected area. Medication reaches the lesion directly with controllable dosage, while its portability, sterility, and ease of use make it a highly cost-effective auxiliary consumable for home care of anorectal conditions.