Disposable Intestinal Isolation and Protection Device
Conditions
Brief summary
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.
Interventions
DEVICEAccording to the different structures, it is divided into TPYRIB type and TPYRIS type. According to the different outer dimensions of the pocket and the outer sleeve, it is divided into two specificat
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.
DEVICEsterile gauze
sterile gauze
Sponsors
Beijing Friendship Hospital
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
22 Years to No maximum
Healthy volunteers
No
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.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| The main efficacy evaluation index: During the surgery. | 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. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Evaluation of equipment usage | 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). |
| Surgical Position Record | 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°). |
| First exhaust time | 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. |
Countries
China
Contacts
STUDY_CHAIRZHONGTAO ZHANG, Doctor
Beijing Friendship Hospital
Outcome results
None listed