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CN-122005180-A - Ostomy device based on radial fold dynamic sealing and time sequence control and intelligent control system thereof

CN122005180ACN 122005180 ACN122005180 ACN 122005180ACN-122005180-A

Abstract

The invention discloses an ostomy device based on radial fold dynamic sealing and time sequence control and an intelligent control system thereof, and relates to the technical field of medical instruments. The device comprises a base component, a flexible sealing cylinder body and a defecation guiding component. The flexible sealing cylinder body is subjected to compressive force by rotationally driving the axial displacement of the outer ring relative to the fixed ring, so that the flexible sealing cylinder body is subjected to buckling to form annular folds, the second main control seal is realized by utilizing the radial shrinkage force of the folds, and the sealing cover at the tail end of the defecation guiding assembly forms a first isolation seal. The system supports double-stage time sequence control, allows a user to independently open the tail end seal to prepare defecation under the main seal closing state, and thoroughly eliminates the risk of 'open while leak'. The invention also provides an upgrade and enhancement scheme, an intervention strategy is dynamically adjusted based on the pressure change rate, and the functions of breathing guidance, operating a logic lock and remote monitoring are provided, so that the spanning from passive monitoring to active rehabilitation guidance is realized. The invention realizes the non-baged and dignity defecation and obviously improves the safety, comfort and life quality of the ostomy patients.

Inventors

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Assignees

  • 潘晨昊
  • 陈鼎豪
  • 陈乐菡

Dates

Publication Date
20260512
Application Date
20260326

Claims (10)

  1. 1. An ostomy device based on radial plication dynamic sealing and timing control, comprising: a base assembly (10) comprising a fixed ring (101) for fitting the skin around a stoma of a patient and a rotary drive outer ring (102) sleeved outside the fixed ring (101); a flexible sealing cylinder (20) with a proximal end fixed on the inner side of the fixed ring (101) and a distal end extending to the inner wall of the rotary driving outer ring (102) or the inner wall of the defecation guiding component (30) to form a drainage channel capable of being closed or opened independently; The rotary driving outer ring (102) is in transmission connection with the fixed ring (101), when a user applies a rotary moment, the rotary driving outer ring (102) generates axial displacement relative to the fixed ring (101), axial compression force is applied to the proximal end of the flexible sealing cylinder body (20), the middle section of the flexible sealing cylinder body (20) is forced to be subjected to unstably buckling to form a plurality of circles of uniformly distributed annular folds, and a circumferentially uniform dynamic sealing barrier is formed for a fecal drainage channel; In the closed state, the annular folds radially shrink until the inner diameter of the flexible sealing cylinder (20) is completely closed to form a second main control seal, and in the open state, the axial compression force is relieved, and the folds are unfolded to open the drainage channel; The defecation guiding assembly (30) comprises an elongated flexible extension tube (301) and a sealing cover (302) arranged at the tail end of the elongated flexible extension tube, wherein the proximal end inlet of the elongated flexible extension tube (301) is communicated with the distal end outlet of the flexible sealing cylinder (20); The sealing cover (302) forms a first isolation seal and can be independently actuated to be opened; The ostomy device is configured to support dual-stage timing control by independently opening the first isolation seal for bowel movement preparation while the second master seal remains closed, and by operating the rotary drive outer ring (102) to open the second master seal for discharge after bowel movement preparation is completed.
  2. 2. Ostomy device according to claim 1, wherein the outer wall of the stationary ring (101) is provided with a helical guide or external thread, and the inner wall of the rotary drive outer ring (102) is provided with a matching helical groove or internal thread, both constituting a screw drive mechanism converting rotary motion into axial linear displacement for controlling the formation and release of folds of the flexible sealing cylinder.
  3. 3. Ostomy device according to claim 1, wherein the flexible sealing cylinder (20) is made of a material comprising medical grade silicone or thermoplastic elastomer.
  4. 4. The ostomy device of claim 1, further comprising a mechanical locking mechanism (40) disposed between the stationary ring (101), the rotary drive outer ring (102) and the end seal cap (302); The mechanical locking mechanism (40) includes a slider, ram or pin for restricting rotation of the rotation-driven outer ring (102) in a locked state, preventing accidental opening due to erroneous operation or accumulation of abdominal pressure, and allowing a user to operate the rotation-driven outer ring (102) in an unlocked state.
  5. 5. An ostomy device according to claim 1, wherein the length of the elongated flexible extension tube (301) is configured to allow a user to direct faeces to the toilet without wearing a collecting bag, the elongated flexible extension tube (301) being secured to the outer periphery of the base member by comprising compression or folding to reduce the volume.
  6. 6. An ostomy device with intelligent monitoring function, characterized by comprising a ostomy device based on radial fold dynamic sealing and time sequence control according to any of claims 1-5, and an intelligent control module (50) integrated on the device; The intelligent control module (50) comprises: a sensor array comprising at least one pressure sensor (501) embedded in the inner wall of the base or the inner wall of the proximal end of the flexible sealing cylinder (20) for dynamically acquiring the pressure in the intestinal lumen; The processing unit comprises a microprocessor and is used for receiving the pressure signal and executing a double-threshold risk grinding and judging algorithm; The feedback unit comprises at least one of an indicator lamp, a buzzer and a vibration motor and is used for providing local feedback according to the research and judgment result; And the power supply module is used for supplying power to the intelligent control module (50).
  7. 7. The intelligent monitoring-enabled ostomy device of claim 6, wherein the dual threshold risk grinding algorithm is based on a "pressure magnitude-duration" two-dimensional joint grinding mechanism: When P (T) > P-ref and the duration deltat < T-limit, judging that the pressure signal P (T) is instant interference, and not triggering an alarm; When P (T) > P-ref and the duration deltat is more than or equal to T-limit, judging that the risk is continuous and high, and triggering a hierarchical intervention flow; the hierarchical intervention flow comprises: First-level prompt, namely prompting the attention of a user through warning color flickering or soft feedback; and (3) performing secondary intervention, namely forcibly interrupting the force action of the user through continuous audible and visual alarm and strong vibration.
  8. 8. The ostomy device with intelligent monitoring function according to claim 6, wherein the intelligent control module (50) is enclosed in an electronic compartment (505) arranged above the fixation ring (101); Preferably, the ostomy device adopts a split architecture, comprising: The ostomy sealing system and the sensing front end comprise a base component (10), a flexible sealing cylinder body (20), a defecation guiding component (30) and a pressure sensor (501), and are disposable or short-term use components; the reusable intelligent host comprises a microprocessor, a battery (503), a communication unit and a feedback unit, is connected with the ostomy sealing system and the sensing front end in a waterproof interface or wireless mode, and can be reused after disinfection.
  9. 9. An intelligent control system for an ostomy device, comprising an ostomy device with intelligent monitoring function according to any of claims 6-8 and a mobile terminal application APP; the ostomy device further comprises a wireless communication unit for transmitting pressure data to the mobile terminal application program in real time, wherein the mobile terminal application program is configured with active behavior intervention logic, and the intervention strategy is dynamically adjusted according to the pressure rising slope and the duration, and comprises the following steps: standardized defecation guidance, when a high risk instruction is detected or a user initiates a defecation request, playing voice to guide the user to breathe and shrink muscles; and (3) biofeedback training, when detecting that the abdominal pressure exceeds a preset high-risk threshold, displaying warning and playing a breathing relaxation animation, and guiding a user to perform mechanical opening operation after the abdominal pressure is reduced.
  10. 10. The ostomy appliance intelligent control system of claim 9, wherein the system further supports a remote monitoring function, automatically sending a push notification to a preset emergency contact when a high risk event or device error is continuously detected; The system is also integrated with self-checking and fault diagnosis functions, including power-on self-checking, periodic zero drift detection and battery health evaluation, and the fault log is uploaded to the mobile terminal application program.

Description

Ostomy device based on radial fold dynamic sealing and time sequence control and intelligent control system thereof Technical Field The invention relates to the technical field of medical appliances, in particular to a excretion management system for intestinal canal ostomy patients. In particular, the invention relates to an intelligent monitoring system of an ostomy chassis with a radial fold dynamic sealing mechanism, a two-stage time sequence control logic and an active behavior intervention function, which aims to realize bag-free directional defecation and effectively eliminate leakage risk in the opening process. Background Enterostomy is a common surgical modality for the treatment of rectal cancer, inflammatory bowel disease and the like. It is counted that there are 55 tens of thousands of new cases of colorectal cancer in China each year, of which about 20% of postoperative patients need to wear ostomy trays and collecting bags. However, the prior art has significant limitations in terms of seal safety, operating logic, and degree of intelligence, including, but not limited to: 1. the sealing mechanism is single, and uncontrollable leakage risk exists in the opening process The comparison document 1 (CN 117695076A) discloses a technical scheme for discharging excrement by driving a shielding plate through a knob, and has the limitation that the opening process of the shielding plate presents continuous linear change characteristics (closing, wedge-shaped gap, half-opening and full-opening), and the sealing release action and the discharge preparation action are coupled in time and space. In the initial stage of rotation, a wedge-shaped gap is formed between the baffle plate and the pipe wall, so that excrement can overflow in an unexpected state, and the operation fault tolerance rate is low. The reference 2 (CN 118078514A) adopts a threaded plug structure, and belongs to an axial packing type seal. The scheme also has the problem of 'open while leak', wherein in the process of screwing out the plug, a spiral channel is formed in a screw thread gap, and along with the withdrawal of the plug, the drainage channel is gradually opened, so that pollution is very easy to cause. 2. Low intelligent degree, lack of active intervention Most of the existing monitoring technologies are passive functions of pressure exceeding, namely alarming, so that instantaneous abdominal pressure and real obstruction risk cannot be distinguished, and real-time guidance on defecation actions of patients is lacking, so that damage is easily caused by improper operation. 3. Relying on collection bags, experience is poor The prior art needs to be matched with a collecting bag for use, has the problems of inconvenient movement, visual exposure, peculiar smell diffusion, frequent replacement, skin allergy and the like, and seriously influences the dignity and the quality of life of patients. Therefore, a system that can achieve radial dynamic sealing, reduce leakage risk through two-seal timing control, and implement a hierarchical intelligent protection function according to patient needs is needed. Disclosure of Invention 1. Technical purpose The present invention aims to provide an ostomy solution capable of meeting the needs of patients of different hierarchical levels: the first level is basic, and the radial fold dynamic sealing and the double-stage time sequence control of a pure mechanical structure are used as cores, so that the problems of automatic control, opening and discharging and leakage are solved. And the second level is upgrade version, and an intelligent control module is integrated on the basis of the basic version, so that accurate monitoring and local feedback of pressure are realized. And the third level is a reinforced version, and based on the upgrade version, APP and active behavior intervention logic are further introduced to form a closed-loop rehabilitation guidance system. 2. Technical proposal The basic model refers to an ostomy device based on radial fold dynamic sealing and time sequence control, and safe defecation is realized by means of mechanical control logic. The basic money comprises: 1. core mechanical structure The base assembly comprises a fixed ring used for being attached to the skin around the stoma of a patient and a rotary driving outer ring sleeved outside the fixed ring. The outer wall of the fixed ring is provided with a spiral guide rail or an external thread, the inner wall of the rotary driving outer ring is provided with a spiral groove or an internal thread matched with the spiral guide rail or the external thread, the spiral guide rail or the internal thread and the internal thread form a spiral transmission mechanism, and rotary motion is converted into axial linear displacement so as to control the formation and release of wrinkles of the flexible sealing cylinder. The proximal end of the flexible sealing cylinder body is fixed on the inner side of the fixed ring, and