Inflatable sterile dressing for minimally invasive spine surgery in orthopedics department
By using an inflatable balloon and waterproof layer design in minimally invasive spinal surgery, the problems of dressing shifting and high risk of contamination have been solved, thus improving surgical efficiency and safety.
Patent Information
- Application Number
- CN202520236256.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-02-14
AI Technical Summary
Existing minimally invasive spinal surgery dressings are prone to shifting, pose a high risk of contamination, and require manual construction of drainage barriers, thus prolonging surgical preparation time.
An inflatable bladder forms a barrier, combined with a waterproof layer and a highly absorbent resin layer. A three-way valve controls the flow of liquid, and an inflatable pocket is used to hold instruments, simplifying the surgical preparation process.
Effective control of fluid flow reduces the risk of contamination, shortens surgical preparation time, and improves surgical efficiency and safety.
Smart Images

Figure CN223615026U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of clinical medical device technology, and in particular to an inflatable sterile dressing for minimally invasive spinal surgery in orthopedics. Background Technology
[0002] Existing dressings for minimally invasive spinal surgery have several problems. The surgical field is planar, making it difficult to effectively control fluid drainage from the incision, which tends to spread uncontrollably. To construct an effective drainage system, medical staff often need to spend considerable time and effort manually creating drainage barriers using materials such as fabric before surgery. This process not only wastes significant medical resources, such as fabric, but also significantly prolongs surgical preparation time, increasing the overall complexity and cost of the procedure.
[0003] In existing dressing designs, the plastic pockets on both sides are used to store the large amounts of fluid generated during surgery. Because tens of liters of saline solution are continuously used for irrigation to expose the surgical field during surgery, the amount of fluid generated increases significantly. If the circulating nurse fails to drain effectively and promptly, this fluid accumulates in the plastic pockets, making the water bag heavy and causing the dressing to shift. This shift not only causes the sterile tubing to move towards the surgeon's side due to gravity, increasing the risk of contamination of the surgical area, but also puts additional pressure on the patient's skin. This pressure is particularly significant when the patient is in a prone position, significantly increasing the risk of pressure ulcers and adversely affecting postoperative recovery.
[0004] Furthermore, the plastic bag above the side pocket cannot control the direction of liquid flow, which can easily lead to overflow, getting medical staff wet and posing a surgical safety risk. Therefore, developing a new type of dressing to improve surgical quality and ensure patient safety is of significant clinical importance. Utility Model Content
[0005] This invention aims to provide an inflatable sterile dressing for minimally invasive spinal surgery in orthopedics, in order to solve the problems of existing dressings being prone to displacement, having a high risk of contamination, and requiring long preparation time when combined with drainage barriers.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an inflatable sterile dressing for minimally invasive spinal surgery, comprising a circular dressing portion, the dressing portion including a dressing layer and an adhesive layer, the inner circle of the dressing portion being the dressing layer and the outer circle of the dressing portion being the adhesive layer, a circular connecting portion fixedly connected to the top of the dressing portion, the connecting portion including a waterproof layer and an absorbent layer, the inner circle of the connecting portion being the waterproof layer and the outer circle of the connecting portion being the absorbent layer, a horseshoe-shaped air bladder provided at the top of the connecting portion, the inside and outside of the air bladder being fixedly connected to the waterproof layer and the absorbent layer respectively, a water bag being fixedly connected to the horseshoe-shaped opening end of the air bladder, the bottom end of the opening end of the water bag being fixedly connected to the waterproof layer, an air tube provided on the side wall of the air bladder, a three-way valve being fixedly connected to the free end of the air tube, the other two valve ports of the three-way valve being connected to an inflation device and an inflation bag respectively, and a plurality of storage slots being provided at the top of the inflation bag.
[0007] Preferably, the inflation device includes an inflation pipe and an inflation pump, with a three-way valve and an inflation pump respectively connected to the two ends of the inflation pipe.
[0008] Preferably, the dressing layer is a sterile cotton gauze, which can be coated with a medicinal solution.
[0009] Preferably, the waterproof layer is a transparent PE plastic film.
[0010] Preferably, the adhesive layer is medical tape.
[0011] Preferably, the absorbent layer is a highly absorbent resin.
[0012] The principle and beneficial effects of this technical solution:
[0013] (1) The use of an inflatable balloon to form a barrier instead of the traditional cloth drainage barrier effectively reduces cloth waste, shortens surgical preparation time, and thus significantly improves the overall efficiency of the surgery. The inflatable balloon is horseshoe-shaped, and its structure ensures that the fluid generated during the surgery can flow smoothly from the horseshoe opening and be collected by the water bag, avoiding problems caused by disordered fluid flow.
[0014] (2) Near the surgical incision, a combination of dressing and waterproof material is used. The waterproof material effectively prevents liquid from contacting the patient's skin, and a superabsorbent resin is used on the outside of the device. This material can absorb a small amount of splashed liquid, reducing the risk of contamination of the surgical area due to liquid leakage, thereby ensuring the safety of the surgery.
[0015] (3) Considering that such surgeries usually do not use a tripod, an inflatable bag is provided to hold commonly used non-sharp instruments, making it convenient for medical staff to access them at any time during the operation, thus improving the convenience of the operation.
[0016] (4) The three-way valve ensures that the air bag is inflated first, and the surgery can be performed when the air bag is inflated. The air bag is then inflated during the surgery, which does not affect the surgery time. In addition, not all surgeries require the use of the air bag, and the air bag can be removed when it is not needed without affecting the use of the device. Attached Figure Description
[0017] Figure 1 A top view of an inflatable sterile dressing for minimally invasive spinal surgery provided in this embodiment of the present invention;
[0018] Figure 2 A schematic diagram of the AA cross section of an inflatable sterile dressing for minimally invasive spinal surgery provided for an embodiment of this utility model;
[0019] In the diagram: 1. Dressing layer; 2. Adhesive layer; 3. Waterproof layer; 4. Absorbent layer; 5. Inflatable bladder; 6. Water bag; 7. Three-way valve; 8. Inflation tube; 9. Inflatable pocket; 10. Storage slot. Detailed Implementation
[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:
[0021] like Figure 1 , 2 The invention described is an inflatable sterile dressing for minimally invasive spinal surgery, comprising a circular dressing section, which includes a dressing layer 1 and an adhesive layer 2. The inner circle of the dressing section is the dressing layer 1, and the outer circle of the dressing section is the adhesive layer 2. The dressing layer 1 is a sterile cotton gauze, which can be coated with medication. The adhesive layer 2 is medical adhesive tape.
[0022] The top of the dressing is fixedly connected to a circular connector, which includes a waterproof layer 3 and an absorbent layer 4. The inner circle of the connector is the waterproof layer 3, and the outer circle is the absorbent layer 4. The waterproof layer 3 is a transparent PE plastic film. The absorbent layer 4 is a highly absorbent resin.
[0023] A horseshoe-shaped inflatable bladder 5 is provided at the top of the connecting part. The inside and outside of the inflatable bladder 5 are fixedly connected to the waterproof layer 3 and the absorbent layer 4, respectively. A water bag 6 is fixedly connected to the horseshoe-shaped opening end of the inflatable bladder 5. The bottom end of the opening end of the water bag 6 is fixedly connected to the waterproof layer 3. Because the horseshoe shape has only one opening, water will flow out from the opening. The water bag 6 is large enough to ensure that it will not cause a pulling force on the present invention after hanging on the ground and storing water inside. Alternatively, the bottom end of the water bag 6 is open, and the opening is placed directly inside the water bucket so that the liquid drawn out flows directly into the water bucket, which can also ensure that it will not pull on the dressing and prevent the dressing from becoming sticky and loose due to the increase of liquid.
[0024] The air bladder 5 has an air tube on its side wall. The free end of the air tube is fixedly connected to a three-way valve 7. The three-way valve 7 can be manually adjusted to open the valve port. The other two valve ports of the three-way valve 7 are respectively connected to an inflation device and an inflation bag 9. The inflation device includes an inflation tube 8 and an inflation pump. The two ends of the inflation tube 8 are respectively connected to the three-way valve 7 and the inflation pump.
[0025] The top of the inflatable bag 9 is provided with several storage slots 10, which are thickened to prevent them from being scratched by the instruments placed inside.
[0026] When using the device, attach it to the lesion and position the three-way valve 7 to inflate the airbag 5. Turn on the air pump to inflate the airbag 5. After the airbag 5 inflates, it forms a barrier. The fluid produced during the operation will flow out from the opening of the airbag 5. After the airbag 5 is fully inflated, adjust the valve connected to the airbag 5 to close it. Depending on the operation, turn off the air pump or open the valve at the airbag 9 to inflate the airbag 9. After it is fully inflated, the device used in the operation can be placed in the storage slot 10 for easy access.
[0027] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions or characteristics are not described in detail here. For those skilled in the art, various modifications and improvements can be made without departing from the technical solution of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. An inflatable sterile dressing for minimally invasive spinal surgery in orthopedics, characterized in that: The dressing includes a circular dressing portion, which comprises a dressing layer (1) and an adhesive layer (2). The inner circle of the dressing portion is the dressing layer (1), and the outer circle of the dressing portion is the adhesive layer (2). A circular connecting portion is fixedly connected to the top of the dressing portion. The connecting portion comprises a waterproof layer (3) and an absorbent layer (4). The inner circle of the connecting portion is the waterproof layer (3), and the outer circle of the connecting portion is the absorbent layer (4). A horseshoe-shaped air bladder (5) is provided at the top of the connecting portion. The air bladder (5) has an internal and an external portion. The inflatable bladder (5) is fixedly connected to the waterproof layer (3) and the absorbent layer (4). A water bag (6) is fixedly connected to the horseshoe-shaped opening end of the inflatable bladder (5). The bottom end of the opening end of the water bag (6) is fixedly connected to the waterproof layer (3). An air tube is provided on the side wall of the inflatable bladder (5). A three-way valve (7) is fixedly connected to the free end of the air tube. The other two valve ports of the three-way valve (7) are respectively connected to an inflation device and an inflation bag (9). Several storage slots (10) are provided at the top of the inflation bag (9).
2. The inflatable sterile dressing for minimally invasive spinal surgery according to claim 1, characterized in that: The inflation device includes an inflation pipe (8) and an inflation pump, with a three-way valve (7) and an inflation pump connected to both ends of the inflation pipe (8).
3. The inflatable sterile dressing for minimally invasive spinal surgery according to claim 1, characterized in that: The dressing layer (1) is a cotton sterile gauze, which can be coated with medicine.
4. The inflatable sterile dressing for minimally invasive spinal surgery according to claim 1, characterized in that: The waterproof layer (3) is a transparent PE plastic film.
5. The inflatable sterile dressing for minimally invasive spinal surgery according to claim 1, characterized in that: The adhesive layer (2) is medical tape.
6. The inflatable sterile dressing for minimally invasive spinal surgery according to claim 1, characterized in that: The absorbent layer (4) is a highly absorbent resin.