Sleeve bag device capable of avoiding cutting soft lens and closing hard lens
By designing the outer and inner capsule structures of the cuff device, the problem of airtightness during the insertion of rigid bronchoscopes into the airway and the risk of cutting flexible bronchoscopes were solved, achieving airway airtightness and surgical safety, and simplifying the operation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINING NO 1 PEOPLES HOSPITAL (JINING ACAD OF MEDICAL SCI)
- Filing Date
- 2024-12-16
- Publication Date
- 2026-05-08
AI Technical Summary
Rigid bronchoscopes cannot completely seal the airway when inserted, leading to insufficient respiratory support. Furthermore, the tip of a rigid bronchoscope may cut into a flexible bronchoscope, affecting the safety and success of the surgery.
A cuff device was designed, comprising an outer cuff and an inner cuff, which are connected to a rigid bronchoscope via a blocking element. The outer and inner cuffs are inflatable to seal the airway. The blocking element prevents the end of the rigid bronchoscope from cutting the flexible endoscope. The device is made of rigid silicone to prevent slippage. A connecting tube is connected to a fluid source to control the pressure.
It achieves effective airway sealing, prevents the rigid bronchoscope tip from cutting the flexible endoscope, ensures the safety of the surgical procedure and ventilation support, and has a simple structure and is easy to operate.
Smart Images

Figure CN224206800U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to a cuff device that avoids cutting a flexible endoscope and seals a rigid endoscope. Background Technology
[0002] During rigid bronchoscopy, deep sedation is commonly used as anesthesia, and muscle relaxants may be used in some cases to ensure proper insertion of the rigid bronchoscope. However, this combination of deep sedation and muscle relaxants also inhibits respiratory muscles, leading to weakened spontaneous breathing and compromised respiratory support. Therefore, mechanical ventilation is recommended during rigid bronchoscopy to ensure patient safety. Mechanical ventilation during rigid bronchoscopy often employs controlled ventilation, particularly volume-controlled ventilation. Volume-controlled ventilation requires a high degree of airway tightness; if the airway is not airtight, respiratory support may not be adequately provided. Therefore, addressing the issue of airway sealing with rigid bronchoscopes is crucial.
[0003] Existing rigid bronchoscopes, due to their straight shafts and diameters often smaller than the airway diameter, often fail to achieve complete airway sealing after insertion, thus failing to meet the requirements for airtight ventilation. On the other hand, rigid bronchoscopes are recommended for cryo-lung biopsies to mitigate the risk of massive bleeding. However, during cryo-lung biopsies, the sharp tip of the rigid bronchoscope often causes the flexible bronchoscope to be cut when it is pulled back. Therefore, it is necessary to prevent the tip of the rigid bronchoscope from cutting the flexible bronchoscope to ensure the smooth progress of the procedure. Utility Model Content
[0004] In order to solve the problems existing in the prior art, this utility model provides a cuff device that avoids cutting the flexible endoscope and sealing the rigid endoscope, so as to solve the problem of sealing the airway of the rigid bronchoscope and the problem of cutting the flexible endoscope at the end of the rigid bronchoscope.
[0005] To solve the above problems, the technical solution of this utility model is as follows: a cuffing device that avoids cutting the flexible endoscope and seals the rigid endoscope, comprising a cuffing assembly that wraps around the end of the rigid bronchoscope, and a connecting tube connected to the outer wall of the rigid bronchoscope, one end of the connecting tube being connected to the cuffing assembly and the other end being connected to a fluid source.
[0006] Furthermore, the cuff assembly includes an outer cuff disposed on the outer wall of the rigid bronchoscope and an inner cuff disposed on the inner wall of the rigid bronchoscope. The outer cuff and the inner cuff are connected by a blocking member, which covers the end of the rigid bronchoscope.
[0007] Furthermore, the outer capsule is a hollow cylindrical shape.
[0008] Furthermore, the inner capsule is a hollow cylindrical shape.
[0009] Furthermore, the blocking member includes an outer blocking part connected to the outer bladder and an inner blocking part connected to the inner bladder. The inner blocking part and the outer blocking part are connected through a front blocking part. A plurality of channels communicating with the outer bladder and the inner bladder are provided in the inner blocking part, the outer blocking part, and the front blocking part.
[0010] Furthermore, the blocking component is made of rigid silicone.
[0011] Furthermore, the outer and inner capsules are made of soft silicone.
[0012] Furthermore, the outer edge of the blocking member is arc-shaped to prevent scratching the trachea.
[0013] Furthermore, a pressure gauge is installed on the connecting pipe.
[0014] Compared with the prior art, this utility model has the following advantages: the outer and inner capsules can be filled with fluid and expand to complete the sealing of the trachea; the blocking component can block the end of the rigid bronchoscope to prevent the end of the rigid bronchoscope from scratching the flexible bronchoscope and affecting the operation; the blocking component is made of rigid silicone to prevent the blocking component from slipping off the end of the rigid bronchoscope; the overall structure is simple and easy to operate. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the installation of this utility model;
[0016] Figure 2 This is a cross-sectional view of the sheath assembly of this utility model.
[0017] In the figure: 1 Rigid bronchoscope, 2 sets of cuff assembly, 201 outer cuff, 202 inner cuff, 203 blocking component, 2031 outer blocking part, 2032 inner blocking part, 2033 front blocking part, 2034 channel, 3 connecting tube, 4 pressure gauge. Detailed Implementation
[0018] like Figure 1 , Figure 2 As shown, a cuffing device for avoiding cutting a flexible endoscope and sealing a rigid endoscope includes a cuff assembly 2 that wraps around the end of a rigid bronchoscope 1. A connecting tube 3 is connected to the outer wall of the rigid bronchoscope 1. One end of the connecting tube 3 is connected to the cuff assembly 2, and the other end is connected to a fluid source. A pressure gauge 4 is provided on the connecting tube 3 for observing the pressure inside the cuff assembly.
[0019] The cuff assembly 2 includes an outer cuff 201 disposed on the outer wall of the rigid bronchoscope 1 and an inner cuff 202 disposed on the inner wall of the rigid bronchoscope 1. The outer cuff 201 and the inner cuff 202 are connected by a blocking member 203, which covers the end of the rigid bronchoscope 1.
[0020] The outer capsule 201 is hollow and cylindrical, and the inner capsule 202 is hollow and cylindrical.
[0021] The blocking member 203 includes an outer blocking part 2031 connected to the outer bladder 201 and an inner blocking part 2032 connected to the inner bladder 202. The inner blocking part 2032 is connected to the outer blocking part 2031 through a front blocking part 2033. A plurality of channels 2034 communicating with the outer bladder 201 and the inner bladder 202 are provided in the inner blocking part 2032, the outer blocking part 2031 and the front blocking part 2033.
[0022] The blocking component 203 is made of rigid silicone, while the outer capsule 201 and inner capsule 202 are made of soft silicone. Fluid is introduced through the connecting tube, and the outer capsule 201 and inner capsule 202 will inflate and clamp the rigid bronchoscope 1. The outer capsule 201 will press against the trachea to complete the seal.
[0023] The outer edge of the blocking component 203 is curved to prevent scratching the trachea.
[0024] In use, the rigid bronchoscope 1 is inserted into the trachea of the lungs, and fluid is introduced into the connecting tube 3. The fluid can be air or water. The pressure gauge 4 is observed to prevent the fluid pressure from being too high. The fluid enters the outer capsule 201, then flows through the channel 2034, and enters the inner capsule 202. The outer capsule 201 can be made of thinner soft silicone, while the inner capsule 202 is made of thicker soft silicone. It is necessary to ensure that the inner capsule 202 expands only slightly to prevent compression of the inner diameter of the rigid bronchoscope 1, which would affect the passage of the flexible endoscope and other equipment. The outer capsule 201 expands significantly to complete the sealing of the trachea and clamp the rigid bronchoscope 1 to prevent the cuff device from falling off.
[0025] The above specific embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A cuffing device for avoiding cutting a soft lens and sealing a hard lens, characterized in that: The device includes a cuff assembly that covers the end of a rigid bronchoscope. A connecting tube is attached to the outer wall of the rigid bronchoscope. One end of the connecting tube is connected to the cuff assembly, and the other end is connected to a fluid source. The cuff assembly includes an outer cuff located on the outer wall of the rigid bronchoscope and an inner cuff located on the inner wall of the rigid bronchoscope. The outer cuff and the inner cuff are connected by a blocking member that covers the end of the rigid bronchoscope. The blocking member includes an outer blocking part connected to the outer cuff and an inner blocking part connected to the inner cuff. The inner blocking part and the outer blocking part are connected by a front blocking part. Several channels communicating with the outer cuff and the inner cuff are provided in the inner blocking part, the outer blocking part, and the front blocking part.
2. The sheathing device according to claim 1, characterized in that: The outer capsule is a hollow cylindrical shape.
3. The sheathing device according to claim 2, characterized in that: The inner capsule is a hollow cylindrical shape.
4. The sheathing device according to claim 3, characterized in that: The blocking component is made of rigid silicone.
5. The sheathing device according to claim 4, characterized in that: The outer and inner capsules are made of soft silicone.
6. The sheathing device according to claim 5, characterized in that: The outer edge of the blocking component is curved to prevent scratching the trachea.
7. The sheathing device according to claim 1, characterized in that: A pressure gauge is installed on the connecting pipe.