Temporary plugging device for aorta abdominalis
By designing a temporary abdominal aorta closure device including a balloon catheter, arterial sheath and fixing clip, the problem of lack of balloon sealing for abdominal aorta in China to control intraoperative bleeding is solved, and the effect of reducing intraoperative bleeding, improving surgical safety and improving patient prognosis is achieved.
Patent Information
- Application Number
- CN202421815679.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-30
AI Technical Summary
There is a lack of equipment in China to use balloons to seal the abdominal aorta to control intraoperative bleeding.
A temporary closure device for the abdominal aorta is designed, including a balloon catheter, arterial sheath and fixing clip. A balloon is provided with a balloon at the front end of the balloon catheter, and the arterial sheath can be sleeved outside the balloon catheter, and the fixing clip is clamped at the butt joint of the balloon catheter and the arterial sheath canal, restricting the relative movement between the balloon catheter and the arterial sheath canal, stably maintaining the state where the balloon temporarily seals the abdominal aorta.
By using this device, it can effectively reduce intraoperative bleeding, increase surgical safety, improve the thoroughness of tumor resection, and improve patient prognosis.
Smart Images
Figure CN222983095U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical devices, and particularly relates to a temporary occlusion device for the abdominal aorta. Background Technique
[0002] Due to the complex anatomy of pelvic and sacral tumors, with important blood vessels, nerves, and visceral organs adjacent to them, and the relatively hidden onset of tumors, when they are discovered, the tumor volume is huge and the tumor blood supply is rich. There are few bone tumor centers in China that can carry out such surgeries. The main reason for the relatively few surgeries for sacral pelvic tumors is the complex anatomy of pelvic and sacral tumors, adjacent to important tissues, with great difficulty in surgical resection and reconstruction, and a long operation time. The most important problem is still massive bleeding (about 10,000 ml of intraoperative bleeding), which causes unstable blood circulation in patients and even death. The huge surgical risks deter general orthopedic oncology doctors. Excessive intraoperative bleeding, unclear surgical field of view, making it difficult to achieve satisfactory resection of tumors, high postoperative tumor recurrence rate, and poor patient prognosis are also important factors hindering the widespread development of sacral pelvic tumors.
[0003] Inspired by the use of abdominal aortic balloons in foreign countries for war injuries, trauma first aid, and vascular surgery for treating aneurysms, China has gradually tried to carry out abdominal aortic balloon control of intraoperative bleeding since 2007.
[0004] Currently, there is a lack of equipment in China for occluding the abdominal aorta with a balloon to control intraoperative bleeding. Content of the Utility Model
[0005] Aiming at the above problems, the purpose of the utility model is to provide a temporary occlusion device for the abdominal aorta, which is used to solve the problem that there is a lack of equipment in China for occluding the abdominal aorta with a balloon to control intraoperative bleeding.
[0006] To achieve the above purpose, the utility model adopts the following technical solutions:
[0007] The utility model discloses a temporary occlusion device for the abdominal aorta, including
[0008] a balloon catheter, with a balloon provided at its front end, and the balloon is used for temporarily occluding the abdominal aorta;
[0009] an arterial sheath tube, with a docking joint configured at its end, the front end of the balloon catheter passes through the docking joint and exposes the balloon, and the arterial sheath tube is sleeved outside the balloon catheter and can make the balloon catheter move forward or backward freely, so as to push the balloon to the abdominal aorta to be occluded or withdraw it from the abdominal aorta to be occluded;
[0010] The fixing clip is clamped at the connection of the docking joint between the balloon catheter and the arterial sheath tube, restricting relative movement between the balloon catheter and the arterial sheath tube to stably maintain the state where the balloon temporarily occludes the abdominal aorta.
[0011] Preferably, the fixing clip includes a clip housing, a pivot shaft, and a torsion spring. The clip housing includes a left movable piece and a right movable piece. Semi-circular holes are respectively provided at the tops of the left movable piece and the right movable piece, and the tails extend outwards to form manual control ends. The left movable piece and the right movable piece are pivotally connected by the pivot shaft, and the tops of the left movable piece and the right movable piece can be spliced into a complete annular tube hole for clamping an object to be clamped. The torsion spring is arranged on the pivot shaft, and the two ends of the torsion spring respectively abut against the tails of the left movable piece and the right movable piece, so that the front ends of the left movable piece and the right movable piece are kept close together to maintain the state where the object to be clamped is clamped by the complete annular tube hole spliced by the tops of the left movable piece and the right movable piece.
[0012] Preferably, on both sides of the left movable piece of the clip housing, a left movable piece balloon catheter fixing part and a left movable piece arterial sheath tube fixing part are respectively arranged. On both sides of the right movable piece of the clip housing, a right movable piece balloon catheter fixing part and a right movable piece arterial sheath tube fixing part are respectively arranged. The left movable piece balloon catheter fixing part of the left movable piece and the right movable piece balloon catheter fixing part of the right movable piece correspond to form a balloon catheter fixing part for fixing the balloon catheter. The left movable piece arterial sheath tube fixing part of the left movable piece and the right movable piece arterial sheath tube fixing part of the right movable piece correspond to form an arterial sheath tube fixing part for fixing the arterial sheath tube. The two ends of the pivot shaft are respectively arranged on the balloon catheter fixing part and the arterial sheath tube fixing part.
[0013] Preferably, the balloon catheter fixing part and the arterial sheath tube fixing part form an integral body through a common contact surface.
[0014] Preferably, the left movable piece balloon catheter fixing part of the balloon catheter fixing part and the left movable piece arterial sheath tube fixing part of the arterial sheath tube fixing part are integrally formed.
[0015] Preferably, the right movable piece balloon catheter fixing part of the balloon catheter fixing part and the right movable piece arterial sheath tube fixing part of the arterial sheath tube fixing part are integrally formed.
[0016] Preferably, the torsion spring is a single torsion spring.
[0017] Preferably, a pressure measuring branch tube is arranged on the docking joint of the arterial sheath tube, and the pressure measuring branch tube is communicated with the arterial sheath tube.
[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0019] (1) The present utility model provides a temporary occlusion device for the abdominal aorta. A balloon is provided at the front end of the balloon catheter for temporarily occluding the abdominal aorta. The front end of the balloon catheter passes through the docking joint and exposes the balloon. The arterial sheath is sleeved outside the balloon catheter and can move the balloon catheter forward or backward freely, so as to push the balloon to the abdominal aorta to be occluded or withdraw it from the abdominal aorta to be occluded. The fixing clip is clamped at the connection of the docking joint of the balloon catheter and the arterial sheath, restricting the relative movement between the balloon catheter and the arterial sheath, so as to stabilize the state of temporarily occluding the abdominal aorta with the balloon. The temporary occlusion device for the abdominal aorta disclosed by the present utility model solves the problem that there is a lack of equipment in China for occluding the abdominal aorta with a balloon to control intraoperative bleeding.
[0020] (2) The present utility model provides a temporary occlusion device for the abdominal aorta. The front end of the balloon catheter passes through the docking joint and exposes the balloon. Push the balloon catheter inside the arterial sheath to move the balloon catheter forward and push the balloon to the abdominal aorta to be occluded. After the position of the balloon is appropriate, use the fixing clip to clamp at the connection of the docking joint of the balloon catheter and the arterial sheath, restricting the relative movement between the balloon catheter and the arterial sheath, thus liberating one hand of the doctor, simplifying the operation process, and enabling the doctor to perform the operation more skillfully. Using the balloon to temporarily block the blood supply to the lower body during tumor resection greatly reduces intraoperative bleeding, increases the safety of the operation, and is also beneficial to the thoroughness of tumor resection, and the prognosis of the patient is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 is a schematic structural view of the temporary occlusion device for the abdominal aorta provided by Embodiment 1 of the present utility model;
[0022] Figure 2 is Figure 1 a partial enlarged view of A in
[0023] Figure 3 is a schematic structural view of the arterial sheath provided by Embodiment 1 of the present utility model;
[0024] Figure 4 is a schematic external structural view of the fixing clip provided by Embodiment 1 of the present utility model;
[0025] Figure 5 is a schematic internal structural view (bottom view) of the fixing clip provided by Embodiment 1 of the present utility model;
[0026] Figure 6 is a schematic structural view of clamping the connection of the arterial sheath and the balloon catheter with the fixing clip provided by Embodiment 1 of the present utility model;
[0027] Figure 7It is a schematic diagram of the temporary occlusion device for the abdominal aorta provided in Embodiment 2 of the present utility model applied to the human body.
[0028] Explanation of reference numerals: 1 - balloon catheter, 10 - balloon;
[0029] 2 - arterial sheath tube, 20 - docking joint, 21 - pressure measurement branch tube;
[0030] 3 - fixing clip, 30 - pivot, 31 - balloon catheter fixing part, 32 - arterial sheath tube fixing part, 33 - torsion spring;
[0031] 100 - complete annular tube hole. Detailed implementation mode
[0032] The exemplary embodiments of the present utility model will be described in more detail below with reference to the drawings. Although the exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present utility model can be more thoroughly understood and the scope of the present utility model can be fully conveyed to those skilled in the art.
[0033] In order to solve the problem that there is a lack of equipment in China at present for occluding the abdominal aorta with a balloon to control intraoperative bleeding, the present utility model provides a temporary occlusion device for the abdominal aorta. A balloon is provided at the front end of the balloon catheter for temporarily occluding the abdominal aorta; the front end of the balloon catheter passes through the docking joint and exposes the balloon. The arterial sheath tube is sleeved outside the balloon catheter and can move the balloon catheter forward or backward freely, so as to push the balloon to the abdominal aorta to be occluded or withdraw it from the abdominal aorta to be occluded; the fixing clip is clamped at the connection of the docking joint of the balloon catheter and the arterial sheath tube to limit the relative movement between the balloon catheter and the arterial sheath tube, so as to stabilize the state of the balloon temporarily occluding the abdominal aorta. A temporary occlusion device for the abdominal aorta disclosed by the present utility model solves the problem of the lack of equipment in China at present for occluding the abdominal aorta with a balloon to control intraoperative bleeding.
[0034] Embodiment 1: A temporary occlusion device for the abdominal aorta
[0035] Embodiment 1 of the present utility model provides a temporary occlusion device for the abdominal aorta, and its structure will be described in detail below with reference to the drawings.
[0036] Reference Figure 1 , the temporary occlusion device for the abdominal aorta includes a balloon catheter 1, an arterial sheath tube 2 and a fixing clip 3,
[0037] A balloon 10 is provided at the front end of the balloon catheter 1, and the balloon 10 is used for temporarily occluding the abdominal aorta;
[0038] The end of the arterial sheath tube 2 is provided with a docking connector 20, the front end of the balloon catheter 1 passes through the docking connector 20 and exposes the balloon 10, the arterial sheath tube 2 is sleeved on the outside of the balloon catheter 1 and enables the balloon catheter 1 to move forward or backward freely, so as to push the balloon 10 to the abdominal aorta to be blocked or withdraw it from the abdominal aorta to be blocked;
[0039] The fixing clamp 3 is clamped at the connection of the docking joint 20 between the balloon catheter 1 and the arterial sheath tube 2 to limit the relative movement between the balloon catheter 1 and the arterial sheath tube 2, that is, the distal sliding of the balloon catheter that occurs during the filling and occlusion of the abdominal aorta by the balloon 10, so as to stably maintain the state of the balloon 10 temporarily occluding the abdominal aorta.
[0040] refer to Figure 2 , Figure 4 , Figure 5 and Figure 6 The fixing clamp 3 includes a clamp shell, a pivot 30 and a torsion spring 33. The clamp shell includes a left movable sheet and a right movable sheet. The top ends of the left movable sheet and the right movable sheet are respectively provided with semicircular holes, and the tail ends extend outward to form a hand-controlled end.
[0041] The left movable piece and the right movable piece are pivotally connected via the pivot 30, and the top ends of the left movable piece and the right movable piece can be spliced into a complete annular tube hole 100 for clamping the object to be clamped;
[0042] The torsion spring 33 is arranged on the pivot 30, and the two ends of the torsion spring 33 respectively abut against the tail ends of the left movable plate and the right movable plate, so that the front ends of the left movable plate and the right movable plate remain close to each other, so as to maintain the state of the tube hole 100 formed into a complete ring by the top ends of the left movable plate and the right movable plate to clamp the object to be clamped.
[0043] refer to Figure 3 A pressure measuring branch tube 21 is disposed on the docking joint 20 of the arterial sheath tube 2 , and the pressure measuring branch tube 21 is connected to the arterial sheath tube 2 .
[0044] Continue to refer Figure 2 , Figure 4 , Figure 5 and Figure 6On both sides of the left movable piece of the split housing are respectively provided with a balloon catheter fixing part of the left movable piece and an arterial sheath tube fixing part of the left movable piece. On both sides of the right movable piece of the split housing are respectively provided with a balloon catheter fixing part of the right movable piece and an arterial sheath tube fixing part of the right movable piece. The balloon catheter fixing part of the left movable piece and the balloon catheter fixing part of the right movable piece correspond to form a balloon catheter fixing part 31 for fixing the balloon catheter 1. The arterial sheath tube fixing part of the left movable piece and the arterial sheath tube fixing part of the right movable piece correspond to form an arterial sheath tube fixing part 32 for fixing the arterial sheath tube 2. Both ends of the pivot 30 are arranged on the balloon catheter fixing part 31 and the arterial sheath tube fixing part 32.
[0045] Specifically, the balloon catheter fixing part 31 and the arterial sheath tube fixing part 32 form an integral body through a shared contact surface.
[0046] More specifically, the balloon catheter fixing part of the left movable piece of the balloon catheter fixing part 31 and the arterial sheath tube fixing part of the left movable piece of the arterial sheath tube fixing part 32 are integrally formed. The balloon catheter fixing part of the right movable piece of the balloon catheter fixing part 31 and the arterial sheath tube fixing part of the right movable piece of the arterial sheath tube fixing part 32 are integrally formed.
[0047] Specifically, the torsion spring 33 is a single torsion spring.
[0048] Embodiment 2: A method for using a temporary occlusion device for the abdominal aorta
[0049] Embodiment 2 of the present utility model provides a method for using a temporary occlusion device for the abdominal aorta, applying the temporary occlusion device for the abdominal aorta in Embodiment 1 to the human body, as Figure 7 shown, this method for use includes the following steps:
[0050] Step A: Push the balloon 10 to the abdominal aorta to be occluded, including the following steps:
[0051] Push the front end of the balloon catheter 1 through the docking joint 20 and expose the balloon 10. Push the balloon catheter 1 in the arterial sheath tube 2 to make the balloon catheter 1 move forward until the balloon 10 is pushed to the abdominal aorta to be occluded under the guidance of fluoroscopy, wherein the abdominal aorta to be occluded is below the renal artery opening of the abdominal aorta and above the bifurcation of the abdominal aorta.
[0052] When placing the balloon 10 in the abdominal aorta before surgery, we first need to puncture the femoral artery and insert the femoral arterial sheath tube 2 as a working channel. Then, under the guidance of a guide wire, the balloon catheter is inserted into the arterial sheath tube 2, and the balloon 10 is placed in the ideal position under the guidance of fluoroscopy.
[0053] Step B: When bleeding occurs during the operation, inject normal saline through the balloon catheter 1 to inflate the balloon 10, blocking the blood flow in the abdominal aorta to achieve hemostasis.
[0054] Among them, after the position of the balloon 10 is satisfactory, a water injection test should be carried out under fluoroscopy. Inject normal saline containing contrast agent into the balloon 10 under dynamic fluoroscopy to inflate the balloon 10 and completely block the blood flow in the abdominal aorta. At this time, the disappearance of femoral artery pulsation can be seen on the electrocardiogram monitor, indicating that the blood flow downstream of the abdominal aorta is completely blocked.
[0055] If there is no fixing clip 3, due to the strong downward impact of the blood flow in the abdominal aorta on the balloon 10 during inflation, the balloon catheter will slide out of the arterial sheath 2 under the influence of the impact force. Therefore, during the water injection test, the operator should hold a syringe in one hand. In order to prevent the catheter from sliding out during the inflation of the balloon 10, the other hand should pinch the connection between the arterial sheath 2 and the balloon catheter, and one foot should step on the foot pedal of the X-ray machine for fluoroscopy, and the eyes should stare at the arterial pulsation on the monitor and the X-ray screen. This operation is prone to confusion and errors.
[0056] By using the fixing clip 3 disclosed in the present utility model, the connection between the arterial sheath 2 and the balloon catheter can be fixed to prevent the balloon catheter from slipping out during the water injection of the balloon 10. This can free one hand of the operator, making the operator more relaxed, reducing the operation difficulty, and avoiding unnecessary medical accidents.
[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims
1. A temporary occlusion device for the abdominal aorta, characterized in that: include A balloon catheter (1), the front end of which is provided with a balloon (10), wherein the balloon (10) is used for temporarily occluding the abdominal aorta; An arterial sheath tube (2) is provided with a docking connector (20) at its end, the front end of the balloon catheter (1) passes through the docking connector (20) and exposes the balloon (10), the arterial sheath tube (2) is sleeved on the outside of the balloon catheter (1) and enables the balloon catheter (1) to move forward or backward freely, so as to push the balloon (10) to the abdominal aorta to be blocked or withdraw it from the abdominal aorta to be blocked; A fixing clamp (3) is clamped at the connection between the butt joint (20) of the balloon catheter (1) and the arterial sheath tube (2) to limit relative movement between the balloon catheter (1) and the arterial sheath tube (2) so as to stably maintain the state in which the balloon (10) temporarily blocks the abdominal aorta.
2. The temporary occlusion device for the abdominal aorta according to claim 1, characterized in that: The fixing clamp (3) comprises a clamp housing, a pivot (30) and a torsion spring (33). The clamping shell includes a left movable sheet and a right movable sheet, the top ends of the left movable sheet and the right movable sheet are respectively provided with semicircular holes, and the tail ends extend outwards to form a hand control end; The left movable piece and the right movable piece are pivotally connected via the pivot (30), and the top ends of the left movable piece and the right movable piece can be spliced into a complete annular tube hole (100) for clamping an object to be clamped; The torsion spring (33) is arranged on the pivot (30), and the two ends of the torsion spring (33) respectively abut against the tail ends of the left movable piece and the right movable piece, so that the front ends of the left movable piece and the right movable piece are kept close to each other, so as to maintain the state in which the tube hole (100) formed by the top ends of the left movable piece and the right movable piece to form a complete ring and clamp the object to be clamped.
3. The temporary occlusion device for the abdominal aorta according to claim 2, characterized in that: The left movable piece of the clamp shell has two sides respectively provided with a left movable piece balloon catheter fixing part and a left movable piece arterial sheath fixing part, and the right movable piece of the clamp shell has two sides respectively provided with a right movable piece balloon catheter fixing part and a right movable piece arterial sheath fixing part, the left movable piece balloon catheter fixing part of the left movable piece and the right movable piece balloon catheter fixing part of the right movable piece correspondingly form a balloon catheter fixing part (31) for fixing the balloon catheter (1); the left movable piece arterial sheath fixing part of the left movable piece and the right movable piece arterial sheath fixing part of the right movable piece correspondingly form an arterial sheath fixing part (32) for fixing the arterial sheath (2); Both ends of the pivot (30) are respectively arranged on the balloon catheter fixing portion (31) and the arterial sheath fixing portion (32).
4. The temporary occlusion device for the abdominal aorta according to claim 3, characterized in that: The balloon catheter fixing portion (31) and the arterial sheath fixing portion (32) are integrated via a shared contact surface.
5. The temporary occlusion device for the abdominal aorta according to claim 4, characterized in that: The left movable piece balloon catheter fixing part of the left movable piece of the balloon catheter fixing part (31) and the left movable piece arterial sheath fixing part of the left movable piece of the arterial sheath fixing part (32) are integrally formed.
6. The temporary occlusion device for the abdominal aorta according to claim 4, characterized in that: The right movable piece balloon catheter fixing part of the right movable piece of the balloon catheter fixing part (31) and the right movable piece arterial sheath fixing part of the right movable piece of the arterial sheath fixing part (32) are integrally formed.
7. The temporary occlusion device for the abdominal aorta according to claim 2, characterized in that: The torsion spring (33) is a single torsion spring.
8. The temporary occlusion device for the abdominal aorta according to claim 1, characterized in that: A pressure measuring branch tube (21) is arranged on the butt joint (20) of the arterial sheath tube (2), and the pressure measuring branch tube (21) is connected to the arterial sheath tube (2).