Blood vessel sheathing canal with balloon
By designing a vascular sheath with a balloon and using a blocking and rotating mechanism to control blood flow, the shortcomings of traditional vascular sheaths in terms of blood flow blocking and channel management are solved, thus improving surgical efficiency and safety.
Patent Information
- Application Number
- CN202511365221.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2025-12-12
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The lack of blood flow blocking devices in existing vascular sheaths leads to blurred intraoperative vision, high risk of vascular wall damage and complications, affecting surgical efficiency and safety.
A balloon-loaded vascular sheath was designed. By using a blocking mechanism and a rotating mechanism, the balloon is inflated through a gas passage to block blood flow, and the opening and closing of the sheath channel is controlled by the rotating mechanism, thereby achieving precise blood flow control and a clear surgical field.
It improves surgical efficiency and safety, reduces the risk of vascular wall damage and complications, simplifies the operation process, and enhances the convenience and safety of clinical use.
Smart Images
Figure CN121102691A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of vascular sheath technology, specifically a vascular sheath with a balloon. Background Technology
[0002] In modern medicine, vascular interventional surgery, with its advantages of minimal invasiveness and rapid recovery, has become an important means of treating various diseases such as cardiovascular diseases and tumors. Vascular sheaths, as key instruments in vascular interventional surgery, are mainly used to establish vascular access, facilitating the delivery of subsequent medical devices or drugs.
[0003] Currently, conventional vascular sheaths only provide basic access and have significant limitations during surgery. Clinical data shows that in common procedures such as coronary artery intervention and peripheral vascular intervention, the lack of blood flow blocking devices in traditional vascular sheaths leads to blurred surgical vision in up to 35% of cases. During surgery, the inability to effectively control local blood flow makes it easy for instruments to damage the vessel wall during insertion and removal, causing oozing or bleeding. This continuous blood flow not only obscures the surgical field, making it difficult for surgeons to accurately locate the lesion and prolonging the operation time, but also increases the risk of guidewire and catheter displacement. Furthermore, blood contact with air activates the coagulation system, and the resulting microthrombi can migrate with the blood flow, potentially blocking distal vessels and causing serious complications such as pulmonary embolism and cerebral infarction. Local hematoma formation can compress surrounding nerves and blood vessels, leading to limb numbness, circulatory disorders, and other problems, severely impacting surgical outcomes and the patient's postoperative recovery. Summary of the Invention
[0004] The purpose of this invention is to provide a vascular sheath with a balloon to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a vascular sheath with a balloon, comprising a sheath, wherein a blocking mechanism is provided on the surface of the sheath, and a rotating mechanism is provided at the right end of the sheath; The blocking mechanism includes a first connecting tube, which is fixedly connected to the surface of the sheath near the right end. The other end of the first connecting tube is fixedly connected to a first Luer connector. A second connecting tube is fixedly connected to the surface of the sheath near the right end. The other end of the second connecting tube is fixedly connected to a second Luer connector. A gas pipe is opened inside the sheath. An air inlet is opened on the surface of the sheath near the right end. An air outlet is fixedly connected to the surface of the sheath near the left end. A balloon is fixedly connected to the surface of the sheath near the left end.
[0006] Preferably, the first connecting pipe is located above the second connecting pipe, and the air inlet and air outlet extend into the gas pipeline.
[0007] Preferably, the air inlet is connected to the second connecting pipe.
[0008] Preferably, the balloon covers the air outlet to facilitate the entry of gas into the balloon.
[0009] Preferably, the rotating mechanism includes a third connecting tube, which is fixedly connected to the right end of the sheath. A rectangular connecting ring is fixedly connected to the middle of the surface of the third connecting tube. A rotating shaft is provided at the top of the rectangular connecting ring. A rubber closed disc is fixedly connected to the bottom end of the rotating shaft. A rotating rod is fixedly connected to the top of the rotating shaft. A fixed disc is fixedly connected to the surface of the rotating shaft. A first insertion hole is opened at the top of the fixed disc. A second insertion hole is opened at the top of the fixed disc. A first fixing frame is fixedly connected to the top of the rectangular connecting ring. A second fixing frame is fixedly connected to the top of the first fixing frame near the front. A plug rod is provided at the top of the second fixing frame. A fixing ring is fixedly connected to the surface of the plug rod. A spring is sleeved between the top of the inner wall of the second fixing frame and the fixing ring on the surface of the plug rod. A pull plate is fixedly connected to the top of the plug rod.
[0010] Preferably, the top of the rectangular connecting ring, the surface of the third connecting tube, and the top of the first fixing frame are all provided with holes that match the rotating shaft, and the surface of the rotating shaft passes through and is rotatably connected to the hole. The rubber closing disc is located inside the third connecting tube, and its diameter is equal to that of the third connecting tube.
[0011] Preferably, the top of the second fixing frame has a hole that matches the insertion rod, and the insertion rod is slidably connected to the hole by passing through the surface of the insertion rod.
[0012] Preferably, the bottom end of the spring is fixedly connected to the top of the fixing ring, and the top end of the spring is fixedly connected to the top of the inner wall of the second fixing frame.
[0013] Preferably, the diameter of the first and second sockets is equal to that of the plug rod, and the bottom end of the plug rod is inserted into the first and second sockets by the elastic force of the spring.
[0014] Preferably, both the first and second sockets are located near the edge of the turntable, and the first and second sockets are at a 90-degree angle to each other.
[0015] Compared with the prior art, the present invention provides a vascular sheath with a balloon, which has the following beneficial effects: This balloon-equipped vascular sheath, through the coordination of the first and second Luer connectors in the blocking mechanism with the gas conduit, inlet, and outlet, allows for convenient inflation and deflation of the balloon. When it is necessary to block blood flow within the blood vessel, the balloon is inflated using the gas conduit, causing it to rapidly expand and adhere to the vessel wall, precisely blocking blood flow and creating a clear, blood-free operating environment for vascular interventional procedures or examinations. After the procedure or examination, the balloon is deflated to quickly restore blood flow within the blood vessel. This flexible and efficient operation greatly improves surgical efficiency and safety.
[0016] The balloon-loaded vascular sheath, with its fixed connection between the first and second connecting tubes and the sheath, makes the blocking mechanism compact and stable, preventing loosening or displacement during use and ensuring the stability and reliability of gas transmission. At the same time, this integrated design reduces the number of external connecting parts, simplifies the operation process, allows medical staff to quickly get started, reduces the difficulty of operation and the risk of error, and improves the convenience of clinical use.
[0017] This balloon-loaded vascular sheath utilizes a rotating mechanism with components such as a rubber closure disc, a rotating shaft, and a rotating rod working in tandem. Rotating the rod drives the rubber closure disc, allowing for precise opening and closing of the right-end channel of the sheath. When medical instruments need to be inserted, rotating the rubber closure disc opens the channel, ensuring smooth instrument insertion. After the procedure, rotating the rubber closure disc again closes the channel, effectively preventing blood reflux, maintaining the cleanliness and stability of the surgical area, and reducing the risk of infection. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort: Figure 1 This is a three-dimensional schematic diagram of the structure of the present invention; Figure 2 This is a three-dimensional schematic diagram of the structural blocking mechanism of the present invention; Figure 3 This is a three-dimensional cross-sectional view of the sheath surface of the present invention; Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 for Figure 3 Enlarged structural diagram at point B; Figure 6 This is a three-dimensional cross-sectional view of the surface of the third connecting pipe of the present invention; Figure 7 This is a three-dimensional schematic diagram of the turntable and the second fixing frame of the present invention; Figure 8 This is a three-dimensional schematic diagram of the first and second sockets of the present invention.
[0019] In the diagram: 1. Sheath; 2. Blocking mechanism; 21. First connecting tube; 22. First Luer connector; 23. Second connecting tube; 24. Second Luer connector; 25. Gas pipe; 26. Air inlet; 27. Air outlet; 28. Balloon; 3. Rotating mechanism; 31. Third connecting tube; 32. Rectangular connecting ring; 33. Rotating shaft; 34. Rubber closing disc; 35. Rotating rod; 36. Fixed disc; 37. First insertion hole; 38. Second insertion hole; 39. First fixing frame; 311. Second fixing frame; 312. Insert rod; 313. Fixing ring; 314. Spring; 315. Pull plate. Detailed Implementation
[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0021] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0022] This invention provides the following technical solutions: Example
[0023] Please see Figure 1-5 The present invention provides a technical solution: a vascular sheath with a balloon, comprising a sheath 1, a blocking mechanism 2 disposed on the surface of the sheath 1, and a rotating mechanism 3 disposed at the right end of the sheath 1; The blocking mechanism 2 includes a first connecting tube 21, which is fixedly connected to the surface of the sheath tube 1 near the right end. The other end of the first connecting tube 21 is fixedly connected to a first Luer connector 22. The surface of the sheath tube 1 is fixedly connected to a second connecting tube 23 near the right end. The other end of the second connecting tube 23 is fixedly connected to a second Luer connector 24. A gas pipe 25 is opened inside the sheath tube 1. An air inlet 26 is opened on the surface of the sheath tube 1 near the right end. An air outlet 27 is fixedly connected on the surface of the sheath tube 1 near the left end. A balloon 28 is fixedly connected on the surface of the sheath tube 1 near the left end.
[0024] The first connecting pipe 21 is located above the second connecting pipe 23, and the air inlet 26 and the air outlet 27 extend into the gas pipe 25.
[0025] The air inlet 26 is connected to the second connecting pipe 23.
[0026] The balloon 28 covers the air outlet 27, making it easier for gas to enter the balloon 28.
[0027] The first Luer connector 22 and the second Luer connector 24 in the blocking mechanism 2 are connected to an external inflation device. Gas enters the balloon 28 through the air inlet 26, gas pipe 25, and air outlet 27, causing the balloon 28 to inflate. The balloon 28 covers the air outlet 27, ensuring effective inflation and thus compressing and blocking the blood vessel. This allows for precise control of the blocking position and force, effectively reducing the risk of bleeding during interventional surgery, ensuring a clear surgical field, and improving surgical safety and success rate. The first connecting tube 21 and the second connecting tube 23 are fixedly connected to the first Luer connector 22 and the second Luer connector 24, respectively. The standardized interface design of the Luer connectors facilitates quick and stable connection with various inflation devices. During the operation, inflation or deflation can be performed as needed, improving surgical efficiency and reducing operational errors caused by inconvenient connections. Example
[0028] Please see Figure 6-8 Furthermore, based on Embodiment 1, a rotating mechanism 3 is obtained.
[0029] The rotating mechanism 3 includes a third connecting pipe 31, which is fixedly connected to the right end of the sheath 1. A rectangular connecting ring 32 is fixedly connected to the middle of the surface of the third connecting pipe 31. A rotating shaft 33 is provided at the top of the rectangular connecting ring 32. A rubber closed disc 34 is fixedly connected to the bottom of the rotating shaft 33. A rotating rod 35 is fixedly connected to the top of the rotating shaft 33. A fixed disc 36 is fixedly connected to the surface of the rotating shaft 33. A first insertion hole 37 and a second insertion hole 38 are provided at the top of the fixed disc 36. A first fixed frame 39 is fixedly connected to the top of the rectangular connecting ring 32. A second fixed frame 311 is fixedly connected to the top of the first fixed frame 39 near the front. An insertion rod 312 is provided at the top of the second fixed frame 311. A fixed ring 313 is fixedly connected to the surface of the insertion rod 312. A spring 314 is sleeved between the top of the inner wall of the second fixed frame 311 and the fixed ring 313. A pull plate 315 is fixedly connected to the top of the insertion rod 312.
[0030] The top of the rectangular connecting ring 32, the surface of the third connecting tube 31, and the top of the first fixing bracket 39 are all provided with holes that match the rotating shaft 33. The rotating shaft 33 passes through the surface and is rotatably connected to the hole. The rubber closing disc 34 is located inside the third connecting tube 31 and its diameter is equal to that of the third connecting tube 31.
[0031] The top of the second fixing bracket 311 has a hole that matches the insertion rod 312, and the insertion rod 312 passes through the surface and slides up and down in the hole.
[0032] The bottom end of the spring 314 is fixedly connected to the top of the fixing ring 313, and the top end of the spring 314 is fixedly connected to the top of the inner wall of the second fixing bracket 311.
[0033] The diameters of the first socket 37 and the second socket 38 are equal to those of the plug rod 312, and the bottom end of the plug rod 312 is inserted into the first socket 37 and the second socket 38 by the elastic force of the spring 314.
[0034] Both the first socket 37 and the second socket 38 are close to the edge of the turntable, and the first socket 37 and the second socket 38 are at a 90-degree angle.
[0035] The rotating mechanism 3 allows for more flexible use of the sheath 1. The rotating rod 35 drives the rotating shaft 33 and the rubber closing disc 34 to rotate. When the rubber closing disc 34 rotates to a suitable angle, the third connecting tube 31 can be opened or closed. During surgery, the connection between the inside of the sheath 1 and the outside can be easily controlled according to the progress of the operation. It can be opened when delivering instruments or drugs and closed to prevent blood backflow or external contamination, providing good channel management for surgical operations. The first insertion hole 37 and the second insertion hole 38 on the fixed disc 36 cooperate with the insertion rod 312. Under the elastic force of the spring 314, the bottom end of the insertion rod 312 is inserted into the insertion hole, achieving precise limiting of the rotation angle. The first insertion hole 37 and the second insertion hole 38 are at a 90-degree angle, allowing the rubber closing disc 34 to be stably in either an open or fully closed state. This prevents the sheath 1 from changing its opening or closing state due to accidental collisions during surgery, ensuring the stability and reliability of the surgical operation. The locking and unlocking structure, consisting of the pull plate 315, the insertion rod 312, and the spring 314, allows the insertion rod 312 to disengage from the insertion hole simply by pulling the pull plate 315 upwards when the rubber closing disc 34 needs to be rotated. After rotation, releasing the pull plate 315 allows the spring force of the spring 314 to re-insert the insertion rod 312 into the corresponding insertion hole to complete the locking. The operation process is simple and easy to understand, requiring no complicated operating skills, thus reducing the difficulty and workload of medical staff.
[0036] In actual operation, when this device is used, it is connected to an external inflation device through the first Luer connector 22 and the second Luer connector 24 in the blocking mechanism 2. Gas enters the balloon 28 through the air inlet 26, gas pipe 25, and air outlet 27, causing the balloon 28 to inflate. The balloon 28 covers the air outlet 27, ensuring effective gas filling, thereby compressing and blocking the blood vessel. It can precisely control the blocking position and force, effectively reducing the risk of bleeding in interventional surgery, ensuring a clear surgical field, and improving the safety and success rate of the surgery. The first connecting tube 21 and the second connecting tube 23 are fixedly connected to the first Luer connector 22 and the second Luer connector 24, respectively. The standardized interface design of the Luer connectors facilitates quick and stable connection with various inflation devices. During the operation, inflation or deflation can be performed as needed, improving surgical efficiency and reducing operational errors caused by inconvenient connection. The rotating mechanism 3 allows for more flexible use of the sheath 1. The rotating rod 35 drives the rotating shaft 33 and the rubber closing disc 34 to rotate. When the rubber closing disc 34 rotates to a suitable angle, the third connecting tube 31 can be opened or closed. During surgery, the connection between the inside of the sheath 1 and the outside can be easily controlled according to the progress of the operation. It can be opened when delivering instruments or drugs and closed to prevent blood backflow or external contamination, providing good channel management for surgical operations. The first insertion hole 37 and the second insertion hole 38 on the fixed disc 36 cooperate with the insertion rod 312. Under the elastic force of the spring 314, the bottom end of the insertion rod 312 is inserted into the insertion hole, achieving precise limiting of the rotation angle. The first insertion hole 37 and the second insertion hole 38 are at a 90-degree angle, allowing the rubber closing disc 34 to be stably in either an open or fully closed state. This prevents the sheath 1 from changing its opening or closing state due to accidental collisions during surgery, ensuring the stability and reliability of the surgical operation. The locking and unlocking structure, consisting of the pull plate 315, the insertion rod 312, and the spring 314, allows the insertion rod 312 to disengage from the insertion hole simply by pulling the pull plate 315 upwards when the rubber closing disc 34 needs to be rotated. After rotation, releasing the pull plate 315 allows the spring force of the spring 314 to re-insert the insertion rod 312 into the corresponding insertion hole to complete the locking. The operation process is simple and easy to understand, requiring no complicated operating skills, thus reducing the difficulty and workload of medical staff.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A balloon-loaded vascular sheath, comprising a sheath (1), characterized in that: The sheath (1) is provided with a blocking mechanism (2) on its surface and a rotating mechanism (3) is provided at the right end of the sheath (1). The blocking mechanism (2) includes a first connecting tube (21), which is fixedly connected to the surface of the sheath tube (1) near the right end. The other end of the first connecting tube (21) is fixedly connected to a first Luer connector (22). The surface of the sheath tube (1) is fixedly connected to a second connecting tube (23) near the right end. The other end of the second connecting tube (23) is fixedly connected to a second Luer connector (24). A gas pipe (25) is opened inside the sheath tube (1). An air inlet (26) is opened on the surface of the sheath tube (1) near the right end. An air outlet (27) is fixedly connected on the surface of the sheath tube (1) near the left end. A balloon (28) is fixedly connected on the surface of the sheath tube (1) near the left end.
2. The balloon-loaded vascular sheath according to claim 1, characterized in that: The first connecting pipe (21) is located above the second connecting pipe (23), and the air inlet (26) and air outlet (27) extend into the gas pipe (25).
3. A balloon-loaded vascular sheath according to claim 1, characterized in that: The air inlet (26) is connected to the second connecting pipe (23).
4. A balloon-loaded vascular sheath according to claim 1, characterized in that: The balloon (28) covers the air outlet (27) to facilitate the entry of gas into the balloon (28).
5. A balloon-loaded vascular sheath according to claim 1, characterized in that: The rotating mechanism (3) includes a third connecting tube (31), which is fixedly connected to the right end of the sheath (1). A rectangular connecting ring (32) is fixedly connected to the middle of the surface of the third connecting tube (31). A rotating shaft (33) is provided at the top of the rectangular connecting ring (32). A rubber closed disc (34) is fixedly connected to the bottom end of the rotating shaft (33). A rotating rod (35) is fixedly connected to the top end of the rotating shaft (33). A fixed disc (36) is fixedly connected to the surface of the rotating shaft (33). A first insertion hole (37) is provided at the top of the fixed disc (36). 6) A second insertion hole (38) is provided at the top. A first fixing frame (39) is fixedly connected to the top of the rectangular connecting ring (32). A second fixing frame (311) is fixedly connected to the top of the first fixing frame (39) near the front. An insertion rod (312) is provided at the top of the second fixing frame (311). A fixing ring (313) is fixedly connected to the surface of the insertion rod (312). A spring (314) is sleeved between the top of the inner wall of the second fixing frame (311) and the fixing ring (313) on the surface of the insertion rod (312). A pull plate (315) is fixedly connected to the top of the insertion rod (312).
6. A balloon-loaded vascular sheath according to claim 5, characterized in that: The top of the rectangular connecting ring (32), the surface of the third connecting tube (31) and the top of the first fixing frame (39) are all provided with holes that match the rotating shaft (33), and the surface of the rotating shaft (33) is penetrated and rotatably connected to the hole. The rubber closing disc (34) is located inside the third connecting tube (31) and its diameter is equal to that of the third connecting tube (31).
7. A balloon-loaded vascular sheath according to claim 5, characterized in that: The second fixing bracket (311) has a hole at the top that matches the insertion rod (312), and the insertion rod (312) is connected to the hole by sliding up and down through the surface of the insertion rod (312).
8. A balloon-loaded vascular sheath according to claim 5, characterized in that: The bottom end of the spring (314) is fixedly connected to the top of the fixing ring (313), and the top end of the spring (314) is fixedly connected to the top of the inner wall of the second fixing frame (311).
9. A balloon-loaded vascular sheath according to claim 5, characterized in that: The diameter of the first socket (37) and the second socket (38) is equal to that of the plug rod (312), and the bottom end of the plug rod (312) is inserted into the first socket (37) and the second socket (38) by the elastic force of the spring (314).
10. A balloon-loaded vascular sheath according to claim 5, characterized in that: Both the first socket (37) and the second socket (38) are close to the edge of the turntable, and the first socket (37) and the second socket (38) are at a 90-degree angle.