Blood vessel and tissue suture knot pusher
By designing a vascular and tissue suture knot pusher with a flat head and special trough/wire hole structure, the problems of cumbersome and inaccurate knot operation in traditional knot pushing are solved, and the success rate and accuracy of knot pushing in minimally invasive surgery are improved.
Patent Information
- Application Number
- CN202421736305.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-07-22
AI Technical Summary
In traditional minimally invasive surgery, the knot pushing operation is complicated, which can easily lead to failure or incomplete pushing, affecting the suture effect.
A vascular and tissue suture knot pusher is designed, which adopts a structure that combines the flat head and the push knot rod. The plane is set on one side of the flat head, and the special design of wire grooves and thread holes is simplified to simplify the process of suture entering the thread hole, and improve the accuracy and success rate of operation through the design of obtuse angles and inclined chutes.
By simplifying the process of suture entering the thread hole and improving the accuracy of the operation, the success rate of pushing the knot in minimally invasive surgery is significantly improved, and operating errors caused by angle deviation are reduced.
Smart Images
Figure CN223009183U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of medical devices, and particularly to a vascular and tissue suture knot pusher. Background Art
[0002] In medical surgeries, especially minimally invasive cardiac surgeries, the requirements for suturing and ligating deep tissues under the vision of a small incision are relatively high. Reliable suturing and ligating not only reflect the basic qualities of surgeons, but also are directly related to the surgical effect and the postoperative safety of patients.
[0003] In the traditional way, surgeons directly tie knots by hand, which is almost impossible to complete under the minimally invasive vision. Therefore, a knot pusher is usually used in combination with minimally invasive surgeries for suturing and ligating. The traditional knot pusher has a cumbersome knot pushing operation. If the operation is not careful, it will cause the knot pushing to fail or the knot not to be pushed in place, resulting in the failure of suturing. Therefore, further improvement is needed. Utility Model Content
[0004] In order to improve the success rate of knot pushing in minimally invasive surgeries, this application provides a vascular and tissue suture knot pusher.
[0005] The vascular and tissue suture knot pusher provided by this application adopts the following technical solutions:
[0006] A vascular and tissue suture knot pusher includes a handle and a knot pushing rod provided at one end of the handle. A flat head is integrally bent and formed at the end of the knot pushing rod away from the handle. One side of the flat head has a plane. A wire hole is opened in the flat head, and a wire groove communicating with the wire hole for the suture to enter and exit is opened on the side wall of the flat head having the plane.
[0007] By adopting the above technical solutions, a plane is provided on one side of the flat head. When the operator uses it, the plane on the flat head contacts the suture, and the flat head slides along the proximal end of the suture. When the position of the wire groove contacts the suture, the suture can smoothly enter the wire groove and slide into the wire hole, reducing the difficulty of the suture entering the wire hole and improving the success rate of knot pushing in minimally invasive surgeries.
[0008] Preferably, the included angle between the flat head and the knot pushing rod is an obtuse angle.
[0009] By adopting the above technical solutions, the angle of the flat head is designed as an obtuse angle. When the knot pusher is used, the plane on the flat head is kept parallel to the patient, and the operator's vision is parallel to the axial direction of the knot pushing rod for operation. Thus, the possibility of the knot pushing rod blocking the surgical vision of the flat head is reduced, which helps the operator accurately push the suture to the required position, reduces operation errors caused by angle deviation, and further improves the success rate of knot pushing in minimally invasive surgeries.
[0010] Preferably, the included angle between the flat head and the knot pushing rod is 135°.
[0011] By adopting the above technical solution, the angle of the flat head is designed to be 135°. When the knot pusher is in use, the plane on the flat head is kept parallel to the patient, and the operator's field of vision is parallel to the axial direction of the knot pushing rod for operation, thereby reducing the possibility that the knot pushing rod blocks the surgical field of vision of the flat head, helping the operator accurately push the suture to the desired position, reducing operation errors caused by angle deviation, and further improving the success rate of knot pushing in minimally invasive surgery.
[0012] Preferably, the wire hole is a strip-shaped hole, and the length direction of the wire hole is parallel to the length direction of the flat head. The wire groove includes an inner hook groove and an outer hook groove. One end of the inner hook groove communicates with one end of the wire hole close to the knot pushing rod, the other end of the inner hook groove extends toward the plane and is inclined toward the front end direction of the flat head, and one end of the outer hook groove communicates with the inner hook groove, and the other end of the outer hook groove extends to the plane.
[0013] By adopting the above technical solution, since the outer hook groove is inclined, the inner walls of the outer hook groove and the inner hook groove are not on the same reference plane, so a corner is formed at the connection of the outer hook groove and the inner hook groove. When the suture slides into the notch of the outer hook groove, the suture will stay at the corner for a while. At this time, the operator slightly rotates the handle of the knot pusher, and the suture can smoothly slide along the inner hook groove into the wire hole. Subsequently, the flat head is moved backward, so that the suture slides to the end of the wire hole far from the knot pushing rod, effectively reducing the possibility that the suture slips out from the notch of the inner hook groove; after successfully completing the knotting, the flat head is moved forward, so that the suture retreats to the rear end of the wire hole, and then retreats from the inner hook groove and the outer hook groove in sequence, and the suture slides out easily.
[0014] Preferably, the end of the flat head far from the knot pushing rod is arc-shaped.
[0015] By adopting the above technical solution, the end of the flat head far from the knot pushing rod is arc-shaped, making the front end of the flat head round and without sharp corners, improving the use safety.
[0016] Preferably, the knot pushing rod is a stainless steel rod.
[0017] By adopting the above technical solution, the knot pushing rod is made of stainless steel, which has good corrosion resistance.
[0018] Preferably, the upper end surface and the lower end surface of the handle both have grooves.
[0019] By adopting the above technical solution, the upper end surface and the lower end surface of the handle both have grooves for the operator's thumb and index finger to be clamped, effectively reducing the possibility of slippage between the handle and the operator's hand.
[0020] Preferably, the handle has anti-slip patterns.
[0021] By adopting the above technical solution, anti-slip lines are added to increase the friction between the operator's hand and the handle, reducing the possibility of the handle and the operator's hand slipping.
[0022] Preferably, the knot-pushing rod is detachably connected to the handle.
[0023] By adopting the above technical solution, the knot-pushing rod and the handle are detachable, facilitating the replacement of the damaged knot-pushing rod / handle.
[0024] Preferably, the knot-pushing rod is fixedly welded to the handle.
[0025] In summary, the utility model has the following beneficial effects:
[0026] 1. A plane is provided on one side of the flat head. When the operator uses it, the plane on the flat head contacts the suture, and the flat head slides along the proximal end of the suture. When the position of the wire groove contacts the suture, the suture can smoothly enter the wire groove and slide into the wire hole, reducing the difficulty of the suture entering the wire hole and improving the success rate of knot pushing in minimally invasive surgery.
[0027] 2. The angle of the flat head is designed as an obtuse angle. When using the knot pusher, the plane on the flat head is kept parallel to the patient, and the operator's field of view is parallel to the axial direction of the knot-pushing rod for operation, thereby reducing the possibility of the knot-pushing rod blocking the surgical field of view of the flat head, helping the operator accurately push the suture to the required position, reducing operation errors caused by angle deviation, and further improving the success rate of knot pushing in minimally invasive surgery.
[0028] 3. Since the outer hook groove is inclined, the inner walls of the outer hook groove and the inner hook groove are not on the same reference plane, thus forming a corner at the connection of the outer hook groove and the inner hook groove. When the suture slides into the notch of the outer hook groove, the suture will stay at the corner for a while. At this time, the operator slightly rotates the handle of the knot pusher, and the suture can smoothly slide along the inner hook groove and reach the wire hole. Subsequently, the flat head is moved backward, making the suture slide to the end of the wire hole far from the knot-pushing rod, effectively reducing the possibility of the suture slipping from the notch of the inner hook groove. After successfully completing the knotting, the flat head is moved forward, making the suture retreat to the rear end of the wire hole, and then retreating from the inner hook groove and the outer hook groove in sequence, and the suture slides out easily. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 is an overall structural schematic diagram of a vascular and tissue suture knot pusher;
[0030] Figure 2 is a connection structural schematic diagram of the knot-pushing rod and the connecting column;
[0031] Figure 3 is a schematic diagram of the included angle between the knot-pushing rod and the flat head;
[0032] Figure 4 It is a schematic structural diagram of a flat head;
[0033] Figure 5 It is a schematic structural diagram of a wire groove.
[0034] In the figure, 1 is a handle; 11 is a groove; 12 is an anti-slip pattern; 2 is a knot-pushing rod; 21 is a jack; 3 is a connecting column; 31 is a mounting hole; 32 is a screw; 4 is a flat head; 41 is an arc; 42 is a wire hole; 43 is a plane; 5 is a wire groove; 51 is an inner hook groove; 52 is an outer hook groove. Specific embodiments
[0035] The following will further elaborate on this application in conjunction with the attached Figures 1-5 drawings for a more detailed description.
[0036] The embodiment of this application discloses a vascular and tissue suture knot pusher, referring to Figure 1 , which includes a handle 1 and a knot-pushing rod 2 provided at one end of the handle 1. In this embodiment, the knot-pushing rod 2 is a stainless steel rod, and the handle 1 is a stainless steel handle 1.
[0037] Referring to Figure 2 , a connecting column 3 is convexly provided at the front end of the handle 1. In this embodiment, the connecting column 3 is integrally fixed to the handle 1. A mounting hole 31 is opened at the end of the connecting column 3 away from the handle 1, and the end of the knot-pushing rod 2 is inserted into the mounting hole 31. A jack 21 is opened on the outer wall of the end of the knot-pushing rod 2, and a screw 32 inserted into the jack 21 is threadedly penetrated through the connecting column 3 to realize the detachable connection between the knot-pushing rod 2 and the connecting column 3. In other embodiments, the knot-pushing rod 2 and the connecting column 3 are fixed by welding. Both the upper surface and the lower surface of the front end of the handle 1 have grooves 11, and both the upper surface and the lower surface of the handle 1 have anti-slip patterns 12. The grooves 11 are located between the anti-slip patterns 12 and the connecting column 3. When the operator holds the handle 1, the thumb and index finger of the operator are clamped in the grooves 11, and the palm and other fingers of the operator are in contact with the anti-slip patterns 12, effectively reducing the possibility of the handle 1 slipping from the operator's hand.
[0038] Referring to Figure 3 , Figure 4 , a flat head 4 is integrally bent and formed at the end of the knot-pushing rod 2 away from the handle 1. The angle between the flat head 4 and the knot-pushing rod 2 is an obtuse angle. Specifically, the angle between the flat head 4 and the knot-pushing rod 2 is 135°. The end of the flat head 4 away from the knot-pushing rod 2 is provided with an arc 41, so that the front end of the flat head 4 is smooth and round without sharp corners. A wire hole 42 is opened in the flat head 4. The wire hole 42 is a strip-shaped hole, and the length direction of the wire hole 42 is parallel to the length direction of the flat head 4.
[0039] Referring to Figure 4 , Figure 5, one side of the flat head 4 has a flat surface 43, and a wire groove 5 communicating with the wire hole 42 for the suture to enter and exit is provided on the side wall of the flat head 4 having the flat surface 43. The wire groove 5 includes an inner hook groove 51 and an outer hook groove 52. One end of the inner hook groove 51 communicates with one end of the wire hole 42 close to the knot-pushing rod 2. The other end of the inner hook groove 51 extends towards the flat surface 43 and is inclined towards the front end direction of the flat head 4. One end of the outer hook groove 52 communicates with the inner hook groove 51, and the other end of the outer hook groove 52 extends to the flat surface 43. In this embodiment, the included angle between the inner wall surface of the outer hook groove 52 and the projection surface of the front end of the flat head 4 is 20°, and the included angle between the inner wall surface of the inner hook groove 51 and the projection surface of the front end of the flat head 4 is 45°.
[0040] The implementation principle of an artery and tissue suture knot pusher in an embodiment of the present application is as follows: When performing suture knotting, during use, the pusher keeps the flat surface 43 on the flat head 4 parallel to the patient, and the operator operates with the field of view parallel to the axial direction of the knot-pushing rod 2, thereby reducing the possibility that the knot-pushing rod 2 blocks the surgical field of view of the flat head 4. In addition, the flat surface 43 on the flat head 4 contacts the suture, and the knot-pushing rod 2 is moved to make the flat head 4 slide along the proximal end of the suture. When the suture slides into the flat head 4 from the notch of the outer hook groove 52, the suture will stay slightly at the corner between the outer hook groove 52 and the inner hook groove 51. At this time, the operator slightly rotates the handle 1, and the suture can smoothly slide along the inner hook groove 51 and reach into the wire hole 42, and the flat head 4 is moved backward to make the suture slide to the end of the wire hole 42 away from the knot-pushing rod 2, effectively reducing the possibility that the suture slips out from the notch of the inner hook groove 51; After successfully completing the knotting, the flat head 4 is moved forward to make the suture retreat to the rear end of the wire hole 42, and then retreats from the inner hook groove 51 and the outer hook groove 52 in sequence, and the suture can slide out very easily.
[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.
Claims
1. A vascular and tissue suture knot pusher, characterized in that: The invention comprises a handle (1) and a knot-pushing rod (2) arranged at one end of the handle (1); the knot-pushing rod (2) is integrally bent and formed with a flat head (4) at one end away from the handle (1); one side of the flat head (4) has a plane (43); the flat head (4) is provided with a thread hole (42); and a side wall of the flat head (4) having the plane (43) is provided with a thread groove (5) connected to the thread hole (42) for allowing sutures to enter and exit.
2. A vascular and tissue suture knot pusher according to claim 1, characterized in that: The included angle between the flat head (4) and the knot-pushing rod (2) is an obtuse angle.
3. A vascular and tissue suture knot pusher according to claim 2, characterized in that: The included angle between the flat head (4) and the knot-pushing rod (2) is 135°.
4. A vascular and tissue suture knot pusher according to claim 1, characterized in that: The wire hole (42) is a strip-shaped hole, and the length direction of the wire hole (42) is parallel to the length direction of the flat head (4). The wire groove (5) comprises an inner hook groove (51) and an outer hook groove (52). One end of the inner hook groove (51) is connected to one end of the wire hole (42) close to the knot-pushing rod (2), and the other end of the inner hook groove (51) extends toward the plane (43) and is inclined toward the front end direction close to the flat head (4). One end of the outer hook groove (52) is connected to the inner hook groove (51), and the other end of the outer hook groove (52) extends to the plane (43).
5. A vascular and tissue suture knot pusher according to claim 1, characterized in that: The end of the flat head (4) away from the knot-pushing rod (2) is arranged in the shape of a circular arc (41).
6. A vascular and tissue suture knot pusher according to claim 1, characterized in that: The push-knot rod (2) is a stainless steel rod.
7. A vascular and tissue suture knot pusher according to claim 1, characterized in that: The upper end surface and the lower end surface of the handle (1) both have a groove (11).
8. A vascular and tissue suture knot pusher according to claim 1, characterized in that: The handle (1) has anti-slip patterns (12).
9. A vascular and tissue suture knot pusher according to claim 1, characterized in that: The knot-pushing rod (2) is detachably connected to the handle (1).
10. A blood vessel and tissue suture knot pusher according to claim 1, characterized in that: The knot-pushing rod (2) is welded and fixed to the handle (1).