VSD suction line
By adding a third tubing and installing a pressure measuring head in the VSD suction line, the problem of not being able to monitor the suction cup negative pressure in real time in the existing technology was solved, realizing real-time monitoring of wound negative pressure and judgment of appropriate state, thus improving the treatment effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING SHIJITAN HOSPITAL CAPITAL MEDICAL UNIVERSITY
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-21
AI Technical Summary
The existing VSD suction tubing cannot indicate the negative pressure status at the suction cup in real time, making it difficult for medical staff to accurately determine whether the wound is in a suitable negative pressure environment, which affects the treatment effect.
A third tubing is added to the VSD suction line, and a pressure measuring head is installed at its end. The negative pressure value inside the suction cup cavity is measured directly through this head, so as to realize real-time monitoring of the negative pressure on the wound.
This allows medical staff to directly monitor the negative pressure on the wound, ensuring the wound is in a suitable negative pressure environment and improving treatment outcomes.
Smart Images
Figure CN224523416U_ABST
Abstract
Description
Technical Field
[0001] This application relates to a medical device, and more particularly to a VSD suction tubing. Background Technology
[0002] VSD (Vacuum-assisted closure) is a method for treating superficial wounds and for deep drainage, which can thoroughly remove secretions and necrotic tissue from cavities or wounds.
[0003] Maintaining negative pressure at the wound site is crucial in VSD (vacuum-assisted closure) negative pressure drainage. Excessive negative pressure can cause the drainage tube to adhere to surrounding tissue, leading to tissue damage and bleeding. It can also cause the VSD material to fit too tightly against the wound, affecting local blood circulation and hindering wound healing. Conversely, insufficient negative pressure will fail to effectively drain exudate from the wound, failing to achieve the desired therapeutic effect. Clinically, it is essential to accurately adjust and maintain an appropriate negative pressure value based on factors such as the type, location, and depth of the wound.
[0004] VSD negative pressure drainage works by connecting a negative pressure source to a VSD suction tube, where the suction cups of the VSD suction tube create negative pressure on the wound.
[0005] The structure of existing VSD suction tubing is as follows: Figure 1 , 2 As shown, it includes a suction cup 11, a first tube 12, and a second tube 13; the middle part of the suction cup 11 is formed into an upwardly raised cavity; the first tube 12 is connected to the suction cup 11 and is used to connect to a negative pressure source; the second tube 13 is connected to the suction cup and is used to connect to an irrigation device to irrigate the wound.
[0006] Negative pressure sources are usually equipped with a meter to indicate the amount of negative pressure they provide. However, in actual use, the negative pressure at the wound may decrease due to a loose connection or air leakage between the suction line and the negative pressure source, or the seal at the suction cup may be compromised, resulting in a decrease in negative pressure at the wound.
[0007] Existing suction tubing cannot indicate the negative pressure status at the suction cup, making it difficult for medical staff to confirm whether the wound is under appropriate negative pressure. Utility Model Content
[0008] In view of the above problems, this application aims to provide a VSD suction tube that can indicate the negative pressure value at the suction cup, so as to facilitate medical staff to accurately judge the negative pressure state of the wound.
[0009] The VSD suction tubing of this application includes a suction cup, a first tubing, and a second tubing; the middle of the suction cup is formed into an upwardly raised cavity; the first tubing is connected to the suction cup and is used to connect to a negative pressure source; the second tubing is connected to the suction cup and is used to connect to an irrigation device for irrigating the wound, characterized in that: it further includes a third tubing; the first end of the third tubing is connected to the suction cup and is connected to the suction cup, and the second end of the third tubing is connected to a pressure measuring gauge for measuring the negative pressure value in the cavity of the suction cup.
[0010] Preferably, the pressure gauge head can be detachably installed at the second end of the third pipeline.
[0011] Preferably, a switch is formed in the middle of the third pipeline, and the switch is used to control the on / off state of the third pipeline.
[0012] The VSD suction tubing of this application adds a third tubing, on which a pressure measuring head is installed. This allows the pressure measuring head to directly measure the negative pressure value at the cavity of the suction cup, making it easier for medical staff to directly monitor the negative pressure acting on the wound within the suction cup. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of a VSD suction pipe in the prior art.
[0014] Figure 2 for Figure 1 A side view of the VSD suction pipeline.
[0015] Figure 3 This is a three-dimensional structural diagram of the VSD suction pipe of this application. Detailed Implementation
[0016] The present application will now be described in detail with reference to the accompanying drawings.
[0017] The VSD suction tubing of this application includes a suction cup 11, a first conduit 12, and a second conduit 13. The suction cup 11 has an upwardly convex cavity in its center. The first conduit 12 communicates with the suction cup 11 and is connected to a negative pressure source to provide negative pressure to the cavity of the suction cup, applying negative pressure to the wound surface located within the cavity. The second conduit 13 communicates with the suction cup 11 and is connected to an irrigation device for irrigating the wound surface. When not used for irrigation, the end of the second conduit is sealed with a plug. These features are identical to those of the prior art.
[0018] The present application is characterized by further including a third conduit 14; the first end of the third conduit 14 is connected to and communicates with the suction cup 11, and the second end of the third conduit 14 is connected to a pressure gauge 15 for measuring the negative pressure value within the cavity of the suction cup. The pressure gauge 15 is detachably mounted on the second end of the third conduit 14. A switch 16 is formed in the middle of the third conduit 14, which controls the on / off state of the third conduit. During wound irrigation, the switch 16 is closed, and the third conduit is in the off state. During negative pressure drainage, the switch 16 is opened, and the third conduit is in the unobstructed state.
[0019] During negative pressure suction, the pressure measuring head 15 is connected to the suction cup 11 through the third tube 14, which can directly measure the negative pressure value in the cavity of the suction cup 11. This negative pressure value is the negative pressure value applied to the wound surface, so medical staff can directly grasp the negative pressure situation of the wound surface.
Claims
1. A VSD suction tube, comprising a suction cup, a first tube, and a second tube; the suction cup having an upwardly convex cavity in its center; the first tube communicating with the suction cup and being used to connect to a negative pressure source; the second tube communicating with the suction cup and being used to connect to an irrigation device for irrigating the wound, characterized in that: It further includes a third pipeline; the first end of the third pipeline is connected to the suction cup and the third pipeline is in communication with the suction cup, and the second end of the third pipeline is connected to a pressure measuring instrument for measuring the negative pressure value in the cavity of the suction cup.
2. The VSD suction tubing according to claim 1, characterized in that: The pressure gauge head can be detachably installed at the second end of the third pipeline.
3. The VSD suction tubing according to claim 1, characterized in that: A switch is formed in the middle of the third pipeline, which is used to control the opening and closing of the third pipeline.