Cardiac surgery aortic occlusion clamp
By designing an aortic clamp with a bend parallel to the clamp arm, the problem of limited field of vision and inconvenient operation in minimally invasive surgery has been solved, achieving a more efficient and safer aortic clamping operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN HOSPITAL FUDAN UNIV
- Filing Date
- 2025-04-28
- Publication Date
- 2026-07-31
AI Technical Summary
Existing aortic clamps, due to their linear design, can easily affect the surgical field and operation in minimally invasive cardiac and major vascular surgeries, and pose a potential risk of tissue damage.
A cardiac surgical aortic clamp was designed, which adopts a structure in which the first and second bends are parallel to the clamp arm. The bending design provides better operating angle and flexibility without increasing the overall length, and reduces obstruction of the surgical field.
It improves the flexibility and safety of surgical procedures, reduces the risk of operational errors due to limited field of vision, and enhances the efficiency and safety of minimally invasive surgery.
Smart Images
Figure CN224572782U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to a cardiac surgery aortic occlusion clamp. Background Technology
[0002] Minimally invasive cardiac and great vessel surgery is a common procedure, and ascending aortic occlusion is a crucial step during the procedure. In minimally invasive cardiac and great vessel surgery, the surgical incision on the chest wall is small, generally around 5 cm, while the ascending aorta is located deep within the surgical field. To occlude the ascending aorta, the clamp must be long enough. Currently, the two commonly used ascending aortic occlusion clamps in clinical practice are the conventional curved-handle ascending aortic occlusion clamp and the straight-long ascending aortic occlusion clamp. The conventional curved-handle ascending aortic occlusion clamp, due to its short length, cannot effectively occlude the ascending aorta through a small incision. While the straight-long ascending aortic occlusion clamp is long enough, its straight shape means that after occlusion, the long handle remains upright beside the surgical incision, affecting surgical manipulation and posing a potential risk of tissue damage if touched by the surgical staff.
[0003] Chinese patent document CN 95229545.8 discloses a right-angle arm aortic clamp, which consists of an upper arm, a lower arm attached to the upper arm, and a clamp handle. It solves the problem that existing aortic clamps are prone to damaging the right pulmonary artery. However, in minimally invasive cardiac surgery, the straight structure can easily affect the surgical field and operation.
[0004] Therefore, there is a lack of a cardiac surgical aortic clamp that can be easily operated in complex environments and has a wide field of vision. Utility Model Content
[0005] The purpose of this invention is to overcome the problem that the existing aortic clamp with a straight-down structure can easily affect the surgical field and operation, and to provide a cardiac surgical aortic clamp with a better field of vision.
[0006] To achieve the above objectives, this utility model provides a cardiac surgical aortic occlusion clamp, comprising a first clamp handle, a second clamp handle, a first clamp arm, and a second clamp arm. The cardiac surgical aortic occlusion clamp further includes a first bent portion and a second bent portion. The two ends of the first bent portion are respectively fixedly connected to the first clamp handle and the first clamp arm, and the two ends of the second bent portion are respectively fixedly connected to the second clamp handle and the second clamp arm.
[0007] Wherein, at least a portion of the first bend and / or the second bend is parallel to the first clamp arm, and the first bend is disposed in a plane perpendicular to the plane in which the first clamp arm and the second clamp arm are located.
[0008] Preferably, the first bending portion includes a first folded edge and a second folded edge, the first folded edge being fixedly connected to the second folded edge, and the included angle between the first folded edge and the second folded edge ranging from 30° to 60°; and / or,
[0009] The second bending portion includes a third fold and a fourth fold, the third fold being fixedly connected to the fourth fold, and the included angle between the third fold and the fourth fold being between 30° and 60°.
[0010] Preferably, the length of the first folded edge is less than the length of the second folded edge, and the length of the second folded edge is less than the length of the first clamp arm; and / or,
[0011] The length of the third fold is less than the length of the fourth fold, and the length of the fourth fold is less than the length of the second clamp arm.
[0012] Preferably, the length of the first folded edge and / or the third folded edge is 3-4 cm; the length of the second folded edge and / or the fourth folded edge is 5-6 cm.
[0013] Preferably, the angle between the first clamp handle and the second folded edge is 80° to 120°;
[0014] The angle between the second clamp handle and the fourth folded edge is 80° to 120°.
[0015] Preferably, the second folded edge is parallel to the plane containing the first clamp arm and the second clamp arm; or,
[0016] The fourth fold is parallel to the plane containing the second clamp arm and the first clamp arm.
[0017] Preferably, the first clamp handle and the second clamp handle are respectively fixedly connected to a first finger ring and a second finger ring at their ends away from the first bend.
[0018] Preferably, the first bent portion and the second bent portion are hinged together by screws.
[0019] Preferably, the first pliers handle has a first buckle near the first finger ring, and the second pliers handle has a second buckle near the second finger ring, with the first buckle and the second buckle engaging with each other.
[0020] Preferably, the first clamp arm and the second clamp arm, as well as at least a portion of the first bend and the second bend, are provided with anti-slip texture.
[0021] Through the above technical solution, in minimally invasive surgery, due to the small surgical incision and limited operating space, the design of the first and second bends allows the corresponding clamp arms to operate at different angles, enabling the surgeon to maintain a clear field of vision during the operation. This allows the surgeon to more easily access the aorta. Because the first and second bends are parallel to the clamp arms, the overall structure of the clamp can better adapt to the surgical area, reduce interference with surrounding tissues, and reduce the operational risks caused by limited field of vision. Furthermore, it allows the surgeon to complete the occlusion of the ascending aorta more quickly and accurately, thereby improving the overall efficiency of the operation. Attached Figure Description
[0022] Figure 1 This is a top view of the aortic occlusion clamp for cardiac surgery according to an embodiment of the present invention;
[0023] Figure 2 This is a partial front view schematic diagram of the aortic clamp for cardiac surgery according to an embodiment of this utility model.
[0024] Explanation of reference numerals in the attached figures
[0025] 100 Cardiac Surgery Aortic Clamping Clamps
[0026] 11 First clamp handle
[0027] 12 Second clamp handle
[0028] 21 First clamp arm
[0029] 22 Second clamp arm
[0030] 31 First bend
[0031] 311 First fold
[0032] 312 Second fold
[0033] 32 Second bend
[0034] 321 Third fold
[0035] 322 Fourth fold
[0036] 41 First Ring
[0037] 42 Second Ring
[0038] 51 First Card Block
[0039] 52 Second Card Block
[0040] 60 screws
[0041] 70 anti-slip texture Detailed Implementation
[0042] In this invention, unless otherwise stated, the directional terms such as "up," "down," "left," and "right" refer to the following: "up" refers to the position relative to the top or above of the device; "down" refers to the position relative to the bottom or below of the device; "left" refers to the position relative to the left side of the device; "right" refers to the position relative to the right side of the device; "inner" refers to the part inside the device or near the center; "outer" refers to the part outside the device or far from the center; "far" refers to the part farther from the observer's or operator's position; and "near" refers to the part closer to the observer's or operator's position.
[0043] This utility model provides a cardiac surgical aortic occlusion clamp 100, including a first clamp handle 11, a second clamp handle 12, a first clamp arm 21, and a second clamp arm 22. The cardiac surgical aortic occlusion clamp 100 also includes a first bending portion 31 and a second bending portion 32. The two ends of the first bending portion 31 are respectively fixedly connected to the first clamp handle 11 and the first clamp arm 21, and the two ends of the second bending portion 32 are respectively fixedly connected to the second clamp handle 12 and the second clamp arm 22.
[0044] At least a portion of the first bend 31 and the second bend 32 are parallel to the first clamp arm 21. The first bend 31 is located in a plane perpendicular to the plane containing the first clamp arm 21 and the second clamp arm 22. By introducing the first bend 31 and the second bend 32, the structure of the clamp can provide a better operating angle without increasing the overall length, allowing the surgeon to manipulate the clamp more flexibly within a narrow surgical incision, thereby more effectively occluding the ascending aorta. The bends allow the main body of the clamp to be outside the surgical field of view, reducing obstruction of the surgical area. This helps the surgeon to observe the surgical area more clearly. The cardiac surgical aortic occlusion clamp 100 can work effectively with small incisions, overcoming the limitations of traditional clamps in minimally invasive surgery and improving the safety and effectiveness of the surgery.
[0045] In some preferred embodiments, at least a portion of the first bend 31 or the second bend 32 is parallel to the first clamp arm 21, reducing obstruction of the surgical area. This helps surgeons to observe the surgical area more clearly and reduces the risk of operational errors due to limited field of vision.
[0046] In some preferred embodiments, the first bending portion 31 includes a first folded edge 311 and a second folded edge 312, with the first folded edge 311 fixedly connected to the second folded edge 312. The included angle between the first folded edge 311 and the second folded edge 312 ranges from 30° to 60°. This angle range allows the forceps to adapt to the anatomical structures of different patients, and the flexible angle design enables the forceps to work effectively in different situations, enhancing its versatility. The angle design makes it easier for surgeons to find a suitable clamping position when using the forceps.
[0047] In some preferred embodiments, the second bending portion 32 includes a third fold 321 and a fourth fold 322, with the third fold 321 fixedly connected to the fourth fold 322. The included angle between the third fold 321 and the fourth fold 322 ranges from 30° to 60°. This angle design allows the forceps to adapt more flexibly to different surgical environments and anatomical structures during operation, helping surgeons to more easily adjust the angle of the forceps in narrow surgical incisions, thereby improving operational flexibility.
[0048] In some preferred embodiments, the length of the first fold 311 is less than the length of the second fold 312, and the length of the second fold 312 is less than the length of the first clamp arm 21. The shorter first fold 311 makes the overall structure of the clamp more compact, while the longer second fold 312 allows the clamp to better adapt to different surgical environments during operation, providing a larger operating range. This allows surgeons to adjust the angle and position of the clamp more flexibly in narrow surgical incisions, thereby improving operational flexibility. Since the length of the second fold 312 is less than that of the first clamp arm 21, the overall height and volume of the clamp are relatively small, which helps to reduce obstruction of the surgical field of vision.
[0049] In some preferred embodiments, the length of the third fold 321 is less than the length of the fourth fold 322, and the length of the fourth fold 322 is less than the length of the second clamp arm 22. Because the third fold 321 is shorter, the overall height and volume of the clamp are relatively small, which helps reduce obstruction of the surgical field. Surgeons can observe the surgical area more clearly, reducing the risk of operational errors due to limited visibility. The design that the fourth fold 322 is shorter than the second clamp arm 22 improves operational flexibility and enhances the field of vision, further improving the safety and effectiveness of minimally invasive cardiac surgery.
[0050] In some preferred embodiments, the length of the first fold 311 and / or the third fold 321 is 3-4 cm; this allows the forceps to better concentrate force during clamping, enhancing the stability and effectiveness of the clamping. Shorter folds provide a more direct clamping force, ensuring secure fixation when clamping the ascending aorta and preventing blood backflow.
[0051] In some preferred embodiments, the second fold 312 and / or the fourth fold 322 are 5-6 cm long, which allows the forceps to provide a greater range of motion during operation. The longer folds can help surgeons adjust the angle and position of the forceps more flexibly in narrow surgical incisions, thereby improving the flexibility and convenience of operation.
[0052] In some preferred embodiments, the angle between the first forceps handle 11 and the second folded edge 312 is between 80° and 120°; this wider angle range allows surgeons greater flexibility in adjusting the angle and position of the forceps during operation. Whether in a narrow surgical incision or facing different anatomical structures, surgeons can adjust the angle as needed, thereby improving the flexibility and convenience of the operation.
[0053] In some preferred embodiments, the angle between the second forceps handle 12 and the fourth folded edge 322 is 80° to 120°; this angle design allows the main body of the forceps to better avoid the surgical area, reducing obstruction of the field of vision. Surgeons can observe the surgical area more clearly, reducing the risk of operational errors due to limited visibility.
[0054] In some preferred embodiments, the second fold 312 is parallel to the plane containing the first clamp arm 21 and the second clamp arm 22; the overall structure of the forceps better avoids the surgical area, reducing obstruction of the field of vision. This allows the surgeon to observe the surgical area more clearly, reducing the risk of operational errors due to limited visibility. The parallel design allows the forceps to better adapt to the anatomy of different patients, especially when dealing with different aortic morphologies and locations, providing better adaptability and flexibility.
[0055] In some preferred embodiments, the fourth fold 322 is parallel to the plane containing the second clamp arm 22 and the first clamp arm 21. The overall structure of the clamp can better avoid the surgical area and reduce obstruction of the field of vision. The parallel design allows the clamp to better adapt to the anatomical structure of different patients, especially when facing different aortic morphologies and positions, providing better adaptability and flexibility.
[0056] In some preferred embodiments, the first forceps handle 11 and the second forceps handle 12 are respectively fixedly connected to the first finger ring 41 and the second finger ring 42 at the ends away from the first bend 31. The first finger ring 41 and the second finger ring 42 can provide the surgeon with a better grip point, make it easier to adjust the position of the fingers and the grip, and make it more stable to control the movement of the forceps during operation, thereby reducing operational errors caused by hand tremors or instability.
[0057] In some preferred embodiments, the first bend 31 and the second bend 32 are hinged by a screw 60. The hinged screw 60 provides a certain degree of rotational freedom between the first bend 31 and the second bend 32, allowing the forceps to better adapt to different anatomical structures and surgical needs during clamping and operation, especially in narrow surgical incisions, where the clamping angle can be adjusted more easily.
[0058] In some preferred embodiments, the first clamp handle 11 has a first latch near the first finger ring 41, and the second clamp handle 12 has a second latch near the second finger ring 42. The first latch and the second latch engage with each other. The engagement of the first latch and the second latch effectively fixes the relative position between the first clamp handle 11 and the second clamp handle 12, enhances the overall stability of the forceps, and prevents the clamp handles from accidentally separating or loosening during operation, thereby ensuring the safety and effectiveness of the surgery.
[0059] In some preferred embodiments, the first clamp arm 21 and the second clamp arm 22, as well as at least a portion of the first bend 31 and the second bend 32, are provided with anti-slip grooves 70. The anti-slip grooves 70 can significantly increase the friction between the clamp arm tips and the object being clamped, thereby enhancing grip strength. This enhanced grip strength ensures that the clamps can firmly hold the target when clamping the ascending aorta, preventing slippage or dislodgement.
[0060] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.
Claims
1. A heart surgery aorta blocking clamp comprising a first clamp handle (11), a second clamp handle (12) and a first clamp arm (21), a second clamp arm (22), characterized in that, The cardiac surgery aortic clamp (100) further includes a first bent portion (31) and a second bent portion (32). The two ends of the first bent portion (31) are fixedly connected to the first clamp handle (11) and the first clamp arm (21), respectively. The two ends of the second bent portion (32) are fixedly connected to the second clamp handle (12) and the second clamp arm (22), respectively. Wherein, at least part of the first bend (31) and / or the second bend (32) is parallel to the first clamp arm (21), and the first bend (31) is disposed in a plane perpendicular to the plane where the first clamp arm (21) and the second clamp arm (22) are located.
2. The cardiac surgical aortic cross clamp of claim 1, wherein, The first bending portion (31) includes a first fold (311) and a second fold (312), the first fold (311) being fixedly connected to the second fold (312), and the included angle between the first fold (311) and the second fold (312) ranging from 30° to 60°; and / or, The second bending portion (32) includes a third fold (321) and a fourth fold (322), the third fold (321) being fixedly connected to the fourth fold (322), and the included angle between the third fold (321) and the fourth fold (322) being between 30° and 60°.
3. The cardiac surgical aortic cross clamp of claim 2, wherein, The length of the first fold (311) is less than the length of the second fold (312), and the length of the second fold (312) is less than the length of the first clamp arm (21); and / or, The length of the third fold (321) is less than the length of the fourth fold (322), and the length of the fourth fold (322) is less than the length of the second clamp arm (22).
4. The cardiac surgical aortic cross clamp of claim 3, wherein, The length of the first fold (311) and / or the third fold (321) is 3-4 cm; the length of the second fold (312) and / or the fourth fold (322) is 5-6 cm.
5. The cardiac surgical aortic cross clamp of claim 3, wherein, The angle between the first clamp handle (11) and the second folded edge (312) is 80° to 120°; The angle between the second clamp handle (12) and the fourth fold (322) is 80° to 120°.
6. The cardiac surgical aortic cross clamp of claim 3, wherein, The second folded edge (312) is parallel to the plane containing the first clamp arm (21) and the second clamp arm (22); or, The fourth fold (322) is parallel to the plane containing the second clamp arm (22) and the first clamp arm (21).
7. The cardiac surgical aortic cross clamp of any one of claims 1-6, wherein, The first clamp handle (11) and the second clamp handle (12) are respectively fixedly connected to the first finger ring (41) and the second finger ring (42) at the ends away from the first bend (31).
8. The cardiac surgical aortic cross clamp of any one of claims 1-6, wherein, The first bend (31) and the second bend (32) are hinged by screws (60).
9. The cardiac surgical aortic cross clamp of claim 7, wherein, The first clamp handle (11) is provided with a first buckle near the first finger ring (41), and the second clamp handle (12) is provided with a second buckle near the second finger ring (42). The first buckle and the second buckle are engaged with each other.
10. The cardiac surgical aortic cross clamp of any one of claims 1-6, wherein, The first clamp arm (21) and the second clamp arm (22), as well as at least a portion of the first bend (31) and the second bend (32), are provided with anti-slip textures (70).