Flow turning device for superior vena cava
By designing a transflow device for the superior vena cava, the problem of resection and replacement of blood vessels in the treatment of superior vena cava in the prior art is solved, and the transflow and lesion of venous blood are realized, and long-term anticoagulant treatment is avoided. Reduces bleeding and thrombosis risks and improves the safety and efficiency of the surgery.
Patent Information
- Application Number
- CN202420602441.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-03-27
AI Technical Summary
In the prior art, when dealing with upper vena cava placeholder or external lesions, superior vena cava removal and artificial vascular replacement are often required, and patients need long-term anticoagulation treatment, which has problems such as contraindications for anticoagulation and poor drug compliance.
A transflow device for the superior vena cava is designed, including a transflow hose, an intravenous cuff and an atrial cuff. By the combination of these components, the right atrial appendage pre-installed purse separator can be performed under the thoracoscopic or mid-thoracic thoracic opening. The line is placed in the transfer hose to realize the transfer of venous blood and lesion treatment, avoiding artificial vascular replacement and long-term anticoagulant treatment.
The device avoids artificial vascular replacement and long-term anticoagulation treatment, reduces the risk of bleeding and thrombosis, reduces the cost of treatment, and improves the safety and efficiency of the surgery.
Smart Images
Figure CN222467205U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of superior vena cava, in particular to a flow diversion device used for superior vena cava. Background Art
[0002] For patients with a history of superior vena cava space-occupying lesions or external lesions squeezing or invading the superior vena cava, surgical treatment of the superior vena cava is commonly performed by superior vena cava resection and artificial blood vessel replacement, and long-term anticoagulation therapy is required after surgery.
[0003] At present, considering that some patients have contraindications to anticoagulation or poor compliance with anticoagulant drugs, a shunt device for the superior vena cava is invented to divert venous blood when treating the superior vena cava and treat the lesion at the same time. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes a flow diversion device for the superior vena cava.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A shunt device for superior vena cava comprises a shunt hose, a circumferential outer wall of the shunt hose is fixedly connected to a venous cuff and an atrial cuff, one side of the venous cuff is fixedly connected to a second connecting tube connected to the venous cuff, and the second connecting tube passes through the atrial cuff, and one side of the atrial cuff is fixedly connected to a first connecting tube connected to the inside of the atrial cuff.
[0007] As a further solution of the utility model, a second valve is provided on the circumferential outer wall of the first connecting pipe.
[0008] As a further solution of the utility model, a first valve is provided on the circumferential outer wall of the second connecting tube located on one side of the atrial cuff.
[0009] As a further solution of the present invention, the diameter of the atrial cuff is four centimeters.
[0010] As a further solution of the present invention, the diameter of the venous cuff is 2 centimeters.
[0011] As a further solution of the utility model, the diverter hose also includes a first diverter tube and a second diverter tube, the first diverter tube is inserted into the second diverter tube and is slidably connected to the second diverter tube, a protrusion is integrally formed at one end of the first diverter tube, an L-shaped elastic plate is fixedly connected to one side of the protrusion, a slot is provided on one side outer wall of the second diverter tube, and the L-shaped elastic plate is engaged with the slot.
[0012] As a further solution of the utility model, a sealing ring is fixedly connected to one end of the first circumference flow tube located inside the second circumference flow tube, so that the first circumference flow tube and the second circumference flow tube are sealed.
[0013] The beneficial effects of the utility model are:
[0014] 1. Through the coordinated use of the venous cuff and the atrial cuff, a purse-string suture is pre-placed in the right atrial appendage under thoracoscopy or midline thoracotomy, an incision is made at the center of the purse-string suture, the atrial appendage is clamped, the shunt hose is inserted through this incision, the purse-string suture is tightened, the venous cuff is located at the distal end of the lesion, the atrial cuff is located in the right atrium, the cuff is filled to a suitable air pressure, the cuff is fixed, and further surgical operations on the lesion are performed, thereby avoiding extracorporeal circulation surgery with artificial blood vessels, avoiding the risk of rupture of the venous clamp, avoiding venous resection, avoiding artificial blood vessel replacement, avoiding patients from taking oral anticoagulants for a long time, avoiding the risk of bleeding and thrombosis caused by anticoagulants, and reducing the overall treatment cost of patients with related diseases.
[0015] 2. By using the first diversion tube and the second diversion tube in coordination, the first diversion tube and the second diversion tube are slid between them, so that the length of the diversion hose can be adjusted, which facilitates the adjustment of the diversion device and improves the use effect of the diversion device. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a left-side stereoscopic structural schematic diagram of a bypass device for the superior vena cava embodiment 1 proposed by the utility model;
[0017] Figure 2 It is a right-side three-dimensional structural schematic diagram of a second embodiment of a shunt device for the superior vena cava proposed by the utility model;
[0018] Figure 3 This is a schematic diagram of the enlarged structure of part A of Example 2 of a shunt device for the superior vena cava proposed by the utility model;
[0019] Figure 4 This is a partial cross-sectional structural schematic diagram of Example 2 of a flow diversion device for the superior vena cava proposed by the utility model.
[0020] In the figure: 1, first valve; 2, second valve; 3, first connecting tube; 4, second connecting tube; 5, venous cuff; 6, shunt hose; 7, atrial cuff; 8, first shunt tube; 9, L-shaped elastic plate; 11, slot; 12, second shunt tube; 14, sealing ring. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0022] Example 1
[0023] Reference Figure 1 A shunt device for the superior vena cava comprises a shunt hose 6, a venous cuff 5 and an atrial cuff 7 are bonded to the circumferential outer wall of the shunt hose 6, a second connecting tube 4 connected to the venous cuff 5 is bonded to one side of the venous cuff 5, and the second connecting tube 4 passes through the atrial cuff 7, a first connecting tube 3 connected to the inside of the atrial cuff 7 is bonded to one side of the atrial cuff 7, the shunt hose 6 is inserted through an incision, the purse-string suture is tightened, the venous cuff 5 is located at the distal end of the lesion, the atrial cuff 7 is located in the right atrium, the cuff is filled to a suitable air pressure, the cuff is fixed, and further lesion surgery is performed, thereby avoiding extracorporeal circulation surgery of artificial blood vessels, avoiding the risk of rupture of venous clamps, avoiding venous resection, avoiding artificial blood vessel replacement, avoiding patients from taking oral anticoagulants for a long time, avoiding the risk of bleeding and thrombosis caused by anticoagulants, and reducing the overall treatment cost of patients with related diseases.
[0024] In the utility model, a second valve 2 is provided on the circumferential outer wall of the first connecting tube 3, and a first valve 1 is provided on the circumferential outer wall of the second connecting tube 4 located on one side of the atrial cuff 7. The first valve 1 can prevent the gas inside the venous cuff 5 from escaping, and the second valve 2 can prevent the gas inside the first connecting tube 3 from escaping. The diameter of the atrial cuff 7 is four centimeters, and the diameter of the venous cuff 5 is two centimeters.
[0025] The working principle of this embodiment is as follows: when the superior vena cava space-occupying lesion or external lesion squeezes or invades the superior vena cava, before treating the external lesion, a purse-string suture is pre-placed in the right atrial appendage under thoracoscopy or midline thoracotomy, an incision is made at the center of the purse-string suture, the atrial appendage is clamped, the shunt hose 6 is inserted through this incision, the purse-string suture is tightened, the venous cuff 5 is located at the distal end of the lesion, the atrial cuff 7 is located in the right atrium, the cuff is filled to a suitable air pressure, the cuff is fixed, and further surgical operations on the lesion are performed, thereby avoiding extracorporeal circulation surgery with artificial blood vessels, avoiding the risk of rupture of the venous clamp, avoiding venous resection, avoiding artificial blood vessel replacement, avoiding patients from taking oral anticoagulants for a long time, avoiding the risk of bleeding and thrombosis caused by anticoagulants, and reducing the overall treatment cost of patients with related diseases.
[0026] Example 2
[0027] Reference Figure 2-Figure 4 , a shunt device for the superior vena cava, the shunt hose 6 also includes a first shunt tube 8 and a second shunt tube 12, the first shunt tube 8 is inserted into the second shunt tube 12 and is slidably connected to the second shunt tube 12, one end of the first shunt tube 8 is integrally formed with a protrusion, one side of the protrusion is bonded with an L-shaped elastic plate 9, one side of the second shunt tube 12 is provided with a card slot 11 on the outer wall, and the L-shaped elastic plate 9 is carded with the card slot 11, and the L-shaped elastic plate 9 is pulled to deform, so that the L-shaped elastic plate 9 is separated from the card slot 11, at this time, the first shunt tube 8 can be moved in the second shunt tube 12, so as to adjust the overall length of the shunt hose 6, when the first shunt tube 8 moves to a suitable position, the L-shaped elastic plate 9 is released, at this time the L-shaped elastic plate 9 will be restored by its own elastic force, so as to be carded into the card slot 11, the position of the first shunt tube 8 is fixed, thereby realizing the length adjustment of the shunt hose 6.
[0028] In particular, a sealing ring 14 is bonded to one end of the first circumference flow tube 8 located inside the second circumference flow tube 12 , so that the first circumference flow tube 8 and the second circumference flow tube 12 are sealed, thereby improving the sealing performance between the first circumference flow tube 8 and the second circumference flow tube 12 .
[0029] The working principle of this embodiment is as follows: when in use, the L-shaped elastic plate 9 is pulled to deform so that the L-shaped elastic plate 9 is disengaged from the card slot 11. At this time, the first shunt tube 8 can be moved in the second shunt tube 12, thereby adjusting the overall length of the shunt hose 6. When the first shunt tube 8 moves to a suitable position, the L-shaped elastic plate 9 is released. At this time, the L-shaped elastic plate 9 will restore through its own elastic force, thereby being inserted into the card slot 11 to fix the position of the first shunt tube 8, thereby realizing the length adjustment of the shunt hose 6, facilitating the adjustment of the shunt device, and improving the use effect of the shunt device.
[0030] In addition, the terms "disposed", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
Claims
1. A shunt device for the superior vena cava, comprising a shunt hose (6), characterized in that: The circumferential outer wall of the shunt hose (6) is fixedly connected to a venous cuff (5) and an atrial cuff (7); one side of the venous cuff (5) is fixedly connected to a second connecting tube (4) connected to the venous cuff (5), and the second connecting tube (4) passes through the atrial cuff (7); one side of the atrial cuff (7) is fixedly connected to a first connecting tube (3) connected to the interior of the atrial cuff (7).
2. A flow bypass device for the superior vena cava according to claim 1, characterized in that: A second valve (2) is provided on the circumferential outer wall of the first connecting pipe (3).
3. A shunt device for superior vena cava according to claim 1, characterized in that: A first valve (1) is provided on the circumferential outer wall of the second connecting tube (4) located on one side of the atrial cuff (7).
4. A flow diversion device for superior vena cava according to claim 3, characterized in that: The diameter of the atrial cuff (7) is four centimeters.
5. A flow bypass device for superior vena cava according to claim 1, characterized in that: The diameter of the venous cuff (5) is two centimeters.
6. A flow bypass device for superior vena cava according to claim 1, characterized in that: The diverter hose (6) further comprises a first diverter tube (8) and a second diverter tube (12); the first diverter tube (8) is inserted into the second diverter tube (12) and is slidably connected to the second diverter tube (12); a protrusion is integrally formed at one end of the first diverter tube (8); an L-shaped elastic plate (9) is fixedly connected to one side of the protrusion; a clamping groove (11) is provided on one side outer wall of the second diverter tube (12), and the L-shaped elastic plate (9) is clamped to the clamping groove (11).
7. A flow bypass device for superior vena cava according to claim 6, characterized in that: One end of the first circumferential flow tube (8) located inside the second circumferential flow tube (12) is fixedly connected to a sealing ring (14), so that a seal is achieved between the first circumferential flow tube (8) and the second circumferential flow tube (12).