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Disposable Intestinal Isolation and Protection Device for Patients With Rectal and Lower Sigmoid Colon Tumors Undergoing Laparoscopic AR/LAR Surgery

16 settembre 2026 aggiornato da: Zhongtao Zhang, Beijing Friendship Hospital

A Randomized, Controlled, Open Multicenter Clinical Study on the Efficacy and Safety of a Disposable Intestinal Isolation Protective Device in Patients With Rectal and Lower Sigmoid Colon Tumors Undergoing Laparoscopic AR/LAR Surgery

The small intestine is the main organ in the abdominal cavity, approximately 4 to 5 meters in length, occupying most of the middle and lower abdomen. Due to the long mesentery of the small intestine, it is in a free state and has a high degree of mobility. When performing abdominal surgery, especially lower abdominal surgery, the freedom and slippability of the small intestine often affect the exposure of the surgical site and the operating field of vision. Lower abdominal surgery generally includes colorectal surgery, gynecological surgery, urological surgery, etc. At present, in clinical practice, open surgeries, including minimally invasive laparoscopic manual surgeries, mainly involve significantly adjusting the patient's position to slide the small intestine into the surgical field, or simply surrounding and covering the small intestine with gauze pads and assisting in pulling with the help of assistants. However, the results are not satisfactory, especially for obese patients.

In the current clinical practice of performing middle and lower abdominal surgeries, especially laparoscopic surgeries, a device superior to gauze isolation pads is needed. It can separate the small intestine from the surgical site to expose the surgical area, facilitating doctors to perform manual operations calmly and reducing the operation time and complications. Avoid the special position with the head low and the feet high, which may increase the risk of restricted cardiac and respiratory functions in patients and reduce the impact on surgical anesthesia.

To collect more data on the efficacy and safety of this product for abdominal surgery, it is planned to conduct this post-market clinical study. This clinical study will adhere to the Good Clinical Practice for Medical Devices and relevant laws and regulations, and strictly implement the clinical research protocol.

Panoramica dello studio

Stato

Iscrizione su invito

Condizioni

Intervento / Trattamento

Tipo di studio

Interventistico

Iscrizione (Stimato)

140

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

    • Xicheng Dis
      • Beijing, Xicheng Dis, Cina, 100050
        • Beijing Friendship hospital, Capital Medical University

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Adulto
  • Adulto più anziano

Accetta volontari sani

No

Descrizione

Inclusion Criteria:

  • Age ≥22 years old, gender not limited.
  • Patients with rectal and lower sigmoid colon tumors who underwent laparoscopic AR/LAR surgery.
  • Patients with a BMI of ≥25 agreed to participate in this trial and signed the informed consent form.
  • The distance between the tumor and the anus as measured by enteroscopy should not exceed 20cm.

Exclusion Criteria:

  • Female patients who have participated in or are currently participating in other clinical studies within 3 months before the operation,
  • Have acute infections,
  • Severe small intestinal adhesions or severe edema,
  • Severe abdominal adhesions,
  • Are known to be allergic to silicone,
  • Have a history of severe allergies or severe immune deficiencies,
  • Are pregnant or lactating.
  • The researcher judged that the patient had poor compliance and was unable to complete the study as required.
  • Due to cognitive impairment, I am unable to understand the researcher's introduction or explanation of this trial.
  • Those who have undergone previous intestinal or pelvic surgery.
  • Tissues removed during surgery, including those with sharp or pointed edges, such as broken bone fragments, are not suitable for use with this instrument.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Comparatore attivo: Conventional gauze group
Conventional surgery method
sterile gauze
Sperimentale: Intestinal devrce group
Operate using specialized equipment
The TPYRIB type is composed of a separator bag, a binding film, a tightening sleeve, a push rod handle, a push rod, an outer sleeve, an outer sleeve handle, a hook and a spring clip, a puncture needle, a fixing plate and a pull hook. The TPYRIS type is composed of an outer sleeve cap, a spacer bag, an expansion ring, a pull rod, a push rod handle, a push rod, an outer sleeve, an outer sleeve handle, a hook and a retaining ring, and a fixed block.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
The main efficacy evaluation index: During the surgery.
Lasso di tempo: The subject visit windows are set as follows: Screening period: -7 days, i.e., within 7 days before the surgery Treatment period: 0 days, on the day of the surgery Observation period: 1-7 days after the surgery (including 7 days after the surgery) Follow
Evaluation method: Treatment group: The time from opening and starting to use the disposable small intestinal isolation protection device to completing the retrieval of the disposable small intestinal isolation bag. Control group: From the first time the gauze is opened and used to the time when the last piece of gauze is retrieved.
The subject visit windows are set as follows: Screening period: -7 days, i.e., within 7 days before the surgery Treatment period: 0 days, on the day of the surgery Observation period: 1-7 days after the surgery (including 7 days after the surgery) Follow

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Evaluation of equipment usage
Lasso di tempo: From the time of enrollment until the end of the 3-month treatment period.
On the day of the surgery (within 24 hours), the researchers evaluated the ease of use of the product during open surgery and laparoscopic surgery, whether there was accidental injury to surrounding organs, whether the surgical field was satisfactory, and whether multiple isolations were required. Use a 5-point scale (0 for light, 5 for heavy, in ascending order).
From the time of enrollment until the end of the 3-month treatment period.
Surgical Position Record
Lasso di tempo: From the time of enrollment until the end of the 3-month treatment period.
On the day of surgery (within 24h), the researcher adjusted the body position according to the intraoperative requirements, which was supine, within 15° (0-15° including 15°), 15-30 ° (15°-30° including 30°), and more than 30° (greater than 30°).
From the time of enrollment until the end of the 3-month treatment period.
First exhaust time
Lasso di tempo: From the time of enrollment until the end of the 3-month treatment period.
Starting from the day of the surgery, record the duration (eg. 12h-24 m, HH-MM) of the first time the patient passed gas after the surgery.
From the time of enrollment until the end of the 3-month treatment period.

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Investigatori

  • Cattedra di studio: ZHONGTAO ZHANG, Doctor, Beijing Friendship Hospital

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

27 maggio 2026

Completamento primario (Stimato)

30 novembre 2027

Completamento dello studio (Stimato)

31 dicembre 2027

Date di iscrizione allo studio

Primo inviato

4 agosto 2026

Primo inviato che soddisfa i criteri di controllo qualità

16 settembre 2026

Primo Inserito (Effettivo)

17 settembre 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

17 settembre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

16 settembre 2026

Ultimo verificato

1 settembre 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • BFH-XCGL

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .