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CN-122006076-A - Collecting device for preventing drainage tube exudates from leaking

CN122006076ACN 122006076 ACN122006076 ACN 122006076ACN-122006076-A

Abstract

The application relates to the technical field of medical equipment, in particular to a collecting device for preventing drainage tube exudates from leaking outwards, which comprises a connecting seat arranged on a drainage tube and a sealing cover fixedly connected with the connecting seat, wherein the sealing cover is of an arc-shaped cover structure which is provided with the outer skin of a cannula opening in a sealing mode, a liquid collecting bag is arranged at the bottom of the sealing cover, and a negative pressure air suction connector communicated with the inside of the sealing cover is arranged on the connecting seat. The application uses the vacuum adsorption principle of the annular negative pressure sealing groove to replace the traditional medical glue adhesion, is not influenced by skin oil, sweat or hair, has durable sealing and has no chemical stimulation to skin. And solves the problem of seal failure caused by seepage and 'jetting' during clinical cough and sneeze. Through the cooperation of the buffering of the cover body and the strong negative pressure adsorption, the stability of the sealing edge is ensured. The application also ensures that the skin around the tube is always in a relatively dry environment through active negative pressure drainage, and thoroughly eliminates the occurrence of skin immersion erosion.

Inventors

  • QIU MIN
  • ZHANG LINGLING

Assignees

  • 连云港市第二人民医院(连云港市临床肿瘤研究所)

Dates

Publication Date
20260512
Application Date
20260414

Claims (9)

  1. 1. The collecting device for preventing the drainage tube from leaking outside is characterized by comprising a connecting seat (2) arranged on the drainage tube (1) and a sealing cover (3) fixedly connected with the connecting seat (2); The sealing cover (3) is of an arc-shaped cover structure which is arranged on the skin at the periphery of the cannula opening in a sealing mode, and an elastic band (4) is arranged on the sealing cover and used for fixing the position of the sealing cover (3); The bottom of the sealing cover (3) is provided with a liquid collecting bag, and the connecting seat (2) is provided with a negative pressure air extraction connector (21) communicated with the sealing cover (3).
  2. 2. The collecting device for preventing leakage of drainage tube exudates according to claim 1, wherein the negative pressure suction joint (21) is provided with a one-way valve.
  3. 3. The collecting device for preventing leakage of drainage tube exudates according to claim 2, characterized in that the sealing cover (3) is of a deformable structure.
  4. 4. The collecting device for preventing leakage of drainage tube exudates according to claim 3, wherein a negative pressure air extraction opening (32) communicated with the negative pressure air extraction joint (21) is arranged on the sealing cover (3).
  5. 5. The collecting device for preventing leakage of drainage tube exudates according to claim 4, wherein a negative pressure sealing groove (33) is formed in the bottom edge of the sealing cover (3), the negative pressure sealing groove (33) is communicated with the negative pressure air suction joint (21) through an air suction pipe (331), and a one-way valve is arranged in the air suction pipe (331).
  6. 6. The collecting device for preventing leakage of drainage tube exudates according to claim 1, characterized in that two connecting lugs (31) are symmetrically arranged on the outer wall of the sealing cover (3) for connecting the elastic band (4).
  7. 7. The collecting device for preventing leakage of drainage tube exudates according to claim 6, characterized in that the end of the elastic band (4) is provided with a velcro or a clasp (41) for splicing.
  8. 8. The collecting device for preventing drain tube exudates from leaking out according to any one of claims 1-7, wherein the liquid collecting bag is a first liquid collecting bag (5) fixedly connected with the outer wall of the sealing cover (3), a liquid collecting opening (51) communicated with the bottom of the sealing cover (3) is arranged at the top of the first liquid collecting bag (5), and a liquid discharging valve (52) is arranged at the bottom of the first liquid collecting bag.
  9. 9. The collecting device for preventing leakage of drainage tube exudates according to any of the claims 1-7, characterized in that the collecting bag is a second collecting bag (7) connected with the bottom of the sealing cover (3), and a sealing joint (71) detachably connected with the second collecting bag (7) is arranged at the bottom of the sealing cover (3).

Description

Collecting device for preventing drainage tube exudates from leaking Technical Field The invention relates to the technical field of medical instruments, in particular to a collecting device for preventing drainage tube exudates from leaking. Background In the surgical postoperative drainage or puncture catheter drainage process, a gap is often formed between the drainage tube and the skin puncture. Exudates, blood or peritoneal fluid in the body can easily leak out of the body along the sinus tract between the tube wall and the skin due to patient posture changes, increased abdominal pressure (e.g., coughing) or slight blockage of the drainage tube. At present, the clinic is mainly treated by adopting a mode of covering or pasting thickening gauze on the chassis of the ostomy bag. However, gauze has limited passive absorption capacity, and after saturation, the gauze can impregnate peri-vascular skin, resulting in dermatitis and even retrograde infection. The existing ostomy bag chassis has good compliance and adhesion performance in conventional ostomy nursing, but when the peripheral seepage of a drainage tube is treated, the existence of a drainage tube body and the continuous seepage of the peripheral skin of the tube are adopted, the adhesive surface of the chassis needs to be cut around the drainage tube, the complete annular structure of the chassis is damaged, the adhesion area is reduced, and the edge sealing difficulty is increased. Particularly, when the abdomen pressure of a patient is increased instantaneously due to cough and body position change, high-pressure seepage liquid is easy to spray along a tiny gap between the drainage pipe wall and the cutting opening of the chassis, impacts the edge of the chassis, accelerates the dissolution or stripping of the adhesive layer of the chassis, and further causes the edge to lift up and even drop off completely. In addition, the holding viscosity of conventional chassis adhesives is also somewhat impaired for areas of skin where grease secretion is vigorous or sweats. Therefore, a leak-proof collecting device which can actively seal and effectively collect seepage without damaging skin and is firmly fixed is urgently needed in clinic. Disclosure of Invention The invention aims to provide a collecting device for preventing drainage tube exudates from leaking, which solves the problems of leakage and unstable fixation caused by poor sealing of skin folds and cough impact in the prior art. In order to solve the technical problems, the invention adopts the following technical scheme: The invention provides a collecting device for preventing drainage tube exudates from leaking outwards, which comprises a connecting seat arranged on a drainage tube and a sealing cover fixedly connected with the connecting seat; The sealing cover is of an arc-shaped cover structure which is arranged on the skin at the periphery of the cannula opening in a sealing mode, and an elastic band is arranged on the arc-shaped cover structure and used for fixing the position of the sealing cover; The bottom of the sealing cover is provided with a liquid collecting bag, the connecting seat is provided with a negative pressure air suction connector communicated with the inside of the sealing cover, and the negative pressure environment can be formed by air suction of an external syringe or a negative pressure balloon and the inside and the edge of the sealing cover. Preferably, the negative pressure air suction connector is provided with a one-way valve, the one-way valve only allows air and liquid to flow outwards from the sealing cover, external air is prevented from flowing back into the sealing cover to damage a negative pressure state, and liquid in the liquid collecting bag is prevented from flowing back. Preferably, the sealing cover is of a deformable structure, for example, made of transparent soft silica gel or polyurethane material, and can be deformed adaptively along with the contour of the skin surface. Preferably, the sealing cover is provided with a negative pressure extraction opening communicated with the negative pressure extraction joint. When the negative pressure air suction joint is used for sucking air, negative pressure is generated in the inner cavity of the sealing cover to suck seepage, air in the annularly arranged negative pressure sealing groove is sucked out to form a vacuum adsorption effect, so that the edge of the sealing cover is actively adsorbed on the surface of the skin like a sucking disc, and leakage gaps caused by skin wrinkles are completely eliminated. Preferably, two connecting lugs are symmetrically arranged on the outer wall of the sealing cover and are used for connecting the elastic bands. Preferably, the end part of the elastic band is provided with a magic tape or a hook buckle for splicing. The liquid collecting bag is preferably a first liquid collecting bag fixedly connected with the outer wall of the sealing cover, a liquid col