Operative incision tension reducing device
By creating negative pressure between the centrally raised tension-reducing membrane and the skin, combined with a three-way connector, the problem of complex structure and discomfort in wearing existing devices is solved, achieving efficient tension reduction and wound cleaning, promoting patient healing, and reducing scarring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG BAINUS MEDICAL INSTR
- Filing Date
- 2025-04-02
- Publication Date
- 2026-05-05
AI Technical Summary
Existing surgical tension-reducing devices are complex in structure, require complicated adjustment procedures, have limited tension-reducing effects, and are uncomfortable to wear due to their rigid materials, which may compress the wound and increase the risk of scar formation.
The membrane is designed to reduce tension by raising the center and flattening the sides. It uses a negative pressure device to create negative pressure on the skin, which compresses the skin on both sides of the incision laterally and raises it longitudinally. Combined with a three-way connector, it enables irrigation and drainage, reducing exudate control and wound cleaning.
It directly reduces skin tension at the incision site, alleviates patient discomfort, promotes healing, reduces scar formation, has a simple structure, is easy to operate, and meets patient needs.
Smart Images

Figure CN224193831U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to a surgical incision tension reduction device. Background Technology
[0002] Because surgical incisions usually need to be closed with sutures, and the incision is under tension, noticeable scars will remain after the sutures are removed. Severe scars can cause a series of symptoms such as pain and itching, and the unsightly appearance can increase the patient's psychological burden and affect the patient's normal life after surgery.
[0003] Surgical tension-reducing devices are commonly used medical instruments after surgical wound closure. They primarily reduce tension on the surgical incision, preventing problems such as wound dehiscence, widened scars, and uneven skin edges caused by excessive tension. They also help shorten suture removal time, reduce tissue rejection time, and lower the likelihood of needle prick scarring. However, existing tension-reducing devices are complex in structure, require cumbersome adjustment, and experience uneven stress on the contact surface with the body, resulting in limited tension-reducing effects. In some traditional wound tension-reducing devices with tension bands or toothed bars, the toothed bars may compress the wound during tightening. Furthermore, the tension-reducing structure is often made of rigid materials, causing discomfort for patients and potentially leading to additional injury if used improperly. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides a surgical incision tension-reducing device. This device employs a tension-reducing membrane that is raised in the middle and flat on both sides. The top of the raised portion of the membrane has a connecting cavity, and the bottom of the cavity has a row of connecting holes. One end of the connecting cavity is closed, and the other end is connected to a negative pressure device via a connector, connecting tube, and T-connector. By controlling the negative pressure between the tension-reducing membrane and the skin, the skin on both sides of the incision is compressed laterally and bulges upwards longitudinally, thereby directly reducing the skin tension at the incision site. This device can also be connected to an irrigation device via the T-connector, providing irrigation and drainage functions. It can control incision exudate and clean the wound without replacing the tension-reducing device.
[0005] The specific technical solution of this application is as follows:
[0006] A surgical incision tension-reducing device includes a tension-reducing membrane, a connector, a connecting tube, and a tee connector. The tension-reducing membrane is a thin film that is raised in the middle and flat on both sides. The top of the raised part has a connecting cavity. The connector is used to connect the connecting cavity and the connecting tube. The other end of the connecting tube is connected to the tee connector. The other two ends of the tee connector are used to connect a negative pressure device and a flushing device, respectively.
[0007] Preferably, the tension-reducing membrane is made of liquid silicone rubber, which can better fit the skin surface and allow for direct observation of the incision condition through the membrane.
[0008] Preferably, the top of the raised portion in the middle of the tension-reducing membrane is provided with a connecting cavity, the front end of which is closed and the rear end is used for connecting the connector, and a row of connecting holes is provided on the bottom side of the connecting cavity.
[0009] Preferably, the connector can be used to connect the communicating cavity and the connecting pipe, with the other end of the connecting pipe connected to the third interface of the tee connector.
[0010] Preferably, the first interface of the three-way connector is used to connect to the negative pressure device, the second interface is used to connect to the flushing device, and the three-way connector is equipped with a three-way valve, which can be used to switch between the pressure pumping and flushing functions.
[0011] Compared with existing technologies, the surgical incision tension-reducing device provided by this utility model achieves the following positive effects: The device uses a tension-reducing membrane with a central bulge and flat sides. The top of the bulge in the middle of the membrane has a connecting cavity, and the bottom of the cavity has a connecting hole that connects to a negative pressure device. By controlling the negative pressure between the tension-reducing membrane and the skin, the skin on both sides of the incision is compressed laterally and bulges upwards longitudinally, thereby directly reducing skin tension at the incision site, alleviating patient discomfort, promoting wound healing, reducing scar hyperplasia, and reducing the doctor's suturing pressure. It achieves an effect similar to super-tension-reducing suturing without requiring meticulous suturing. The tension-reducing membrane is made of liquid rubber, which better conforms to the skin surface, and the incision condition can be directly observed through the membrane. The device can also be connected to an irrigation device via a three-way connector, providing irrigation and drainage functions. It can control incision exudate and clean the wound without replacing the tension-reducing device. The device has a simple structure, is easy to operate, and is easy to replace or wear for extended periods, better meeting patient needs and can be widely used in surgeries across various departments. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the surgical incision tension reduction device described in this utility model;
[0013] Figure 2 This is a schematic diagram of the cross-section of the communicating cavity in this utility model;
[0014] Figure 3 This is a schematic diagram of the tee connector in this utility model;
[0015] Figure 4 This is a reference diagram showing the state of the tension-reducing device described in this utility model when used with a surgical membrane;
[0016] Figure 5 This is a schematic diagram of the surgical incision portion of the tension-reducing device described in this utility model in its use state;
[0017] Wherein: 1 is the tension-reducing membrane, 1-1 is the connecting cavity, 1-2 is the connecting hole, 2 is the connector, 3 is the connecting pipe, 4 is the tee connector, 4-1 is the first interface, 4-2 is the second interface, 4-3 is the third interface, 4-4 is the tee valve, and 5 is the surgical membrane. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0019] This invention provides a surgical incision tension-reducing device, such as... Figure 1 As shown, it includes a tension-reducing membrane 1, a connector 2, a connecting pipe 3, and a tee connector 4. The tension-reducing membrane 1 is a thin film with a raised center and flat sides, made of liquid silicone rubber. Figure 2 As shown, the top of the raised portion in the middle of the tension-reducing membrane 1 is provided with a connecting cavity 1-1, and a row of connecting holes 1-2 is located on the bottom side of the connecting cavity 1-1. One end of the connecting cavity 1-1 is closed, and the connector 2 is used to connect the unclosed end of the connecting cavity 1-1 and the connecting pipe 3 respectively. The other end of the connecting pipe 3 is connected to a tee connector 4. Figure 3 As shown, the first interface 4-1 of the three-way connector 4 is connected to the negative pressure device, the second interface 4-2 is connected to the flushing device, and the third interface 4-3 is connected to the connecting pipe 3. The three-way connector 4 is equipped with a three-way valve 4-4 for switching between pressure suction and flushing functions.
[0020] The specific usage method is as follows:
[0021] This device can be used immediately after the incision is sutured; the specific usage time depends on the patient's incision condition. After disinfecting the skin near the incision, place the tension-reducing membrane 1 of this device over the incision, aligning the central axis of the membrane 1 with the incision. Then, use the surgical membrane 5 or other similar instruments to seal and fix the tension-reducing membrane 1 to the skin, creating a sealed environment between the raised central portion and the openings on both sides of the membrane 1 and the skin. Figure 4 As shown. After fixation, insert one end of connector 2 through the fixation surgical diaphragm and into the connecting cavity 1-1. This operation ensures a sealing effect. Connect the other end of connector 2 to connecting tube 3. Connect the first port 4-1 of the three-way connector 4 to the negative pressure device, the second port 4-2 to the flushing device, and the third port 4-3 to connecting tube 3. Switch the three-way valve 4-4 to the state of being connected to the negative pressure device. Control the negative pressure according to the patient's incision type and condition. Figure 5As shown, by controlling the negative pressure between the tension-reducing membrane 1 and the skin, the skin on both sides of the incision is squeezed against each other laterally and bulges upward longitudinally, thereby directly reducing the skin tension at the incision. When the tension-reducing membrane 1 contracts to the required position towards the center line, the negative pressure device is turned off, and the tension reduction operation is completed.
[0022] After tension reduction, close monitoring of the incision drainage is necessary. If drainage occurs and irrigation or medication is required, adjust the three-way valve 4-4 to connect to the irrigation device. Irrigate the incision or administer medication promptly. When continuous irrigation or large-volume medication is required, the side of the fixation surgical membrane away from connector 2 should be opened to allow the irrigation fluid to drain from the incision. After irrigation, the fixation surgical membrane can be reattached or replaced to maintain negative pressure. When small-volume medication is needed, it can be administered directly through the irrigation device, adhering directly to the incision. After irrigation or medication administration, switch back to negative pressure mode for tension reduction. During the above procedures, if deemed necessary by medical staff, a new set of tension-reducing membranes can be directly replaced.
[0023] In summary, the surgical incision tension-reducing device provided by this invention creates negative pressure between the tension-reducing membrane and the skin, causing the skin on both sides of the incision to compress laterally and bulge upwards longitudinally. This directly reduces skin tension at the incision site, alleviates patient discomfort, promotes wound healing, reduces scar hyperplasia, and reduces the pressure on the surgeon during suturing. It achieves an effect similar to super-tension-reducing suturing without requiring meticulous suturing. Simultaneously, the device also has irrigation and suction functions, allowing for control of incision exudate and wound cleaning without replacing the tension-reducing device. The device has a simple structure, is easy to operate, and is easy to replace or wear long-term, better meeting patient needs and can be widely used in surgeries across various departments.
Claims
1. A surgical incision tension-reducing device, comprising a tension-reducing membrane (1), a connector (2), a connecting tube (3), and a tee connector (4), characterized in that: The tension-reducing membrane (1) is a thin film with a raised center and flat sides. The top of the raised center of the tension-reducing membrane (1) is provided with a connecting cavity (1-1), and there is a row of connecting holes (1-2) on the bottom side of the connecting cavity (1-1).
2. The surgical incision tension-reducing device according to claim 1, characterized in that: One end of the connecting cavity (1-1) is closed, and the connector (2) is used to connect the unclosed end of the connecting cavity (1-1) and the connecting pipe (3) respectively. The other end of the connecting pipe (3) is connected to the tee connector (4).
3. The surgical incision tension-reducing device according to claim 1 or 2, characterized in that: The first port (4-1) of the three-way connector (4) is connected to the negative pressure device, the second port (4-2) is connected to the flushing device, the third port (4-3) is connected to the connecting pipe (3), and the three-way connector (4) is equipped with a three-way valve (4-4).