Wire grasping pliers
By designing a suture gripper that integrates suture gripping and suture knot pushing functions, the high cost and long operation time caused by using multiple instruments in laparoscopic surgery are solved, achieving simplified operation and improved efficiency.
Patent Information
- Application Number
- CN202422771842.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-14
AI Technical Summary
In existing technologies, laparoscopic surgery requires the use of two instruments: a suture forceps and a knot pusher, resulting in high costs for medical equipment and long operation time.
A suture gripper was designed that integrates the functions of gripping sutures and pulling knots. Through the design of the movable lever and gripping parts, a single tool can be used to grip the sutures and pull the knots.
It reduced the cost of medical equipment, improved surgical efficiency, and reduced operation time.
Smart Images
Figure CN223529479U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and more specifically, to a wire gripping clamp. Background Technology
[0002] In laparoscopic surgery, the key to achieving tissue suturing and hemostasis lies in the precise grasping of the suture and the traction of the knot. Current techniques typically use suture grasping forceps to grasp the suture and then a knot puller to pull the knot. Using two instruments not only results in high costs for medical equipment but also leads to longer operation times when the suture grasping forceps are replaced with a knot puller midway through the procedure, potentially affecting the normal progress of the surgery.
[0003] In laparoscopic surgery, the key to achieving tissue suturing and hemostasis lies in the precise grasping of the suture and the traction of the knot. Current techniques typically use suture grasping forceps to grasp the suture and then a knot puller to pull the knot. Using two instruments not only results in high costs for medical equipment but also leads to longer operation times when the suture grasping forceps are replaced with a knot puller midway through the procedure, potentially affecting the normal progress of the surgery. Summary of the Invention
[0004] The technical problem that this invention aims to solve is that the use of two instruments, a suture clamp and a knot pusher, is required for tissue suturing and hemostasis, which not only results in high costs for medical instruments but also in long operation times.
[0005] To solve the above problems, this utility model proposes the following technical solution:
[0006] A wire gripper includes a movable rod, a sleeve, and a gripping component. The gripping component includes a fixed head and a movable head. The fixed head is fixedly connected to one end of the sleeve. The movable head is rotatably connected to the fixed head. One end of the movable head is movably connected to one end of the movable rod. The movable rod is slidably connected inside the sleeve.
[0007] The fixed head is provided with a push-knot hole at the end away from the sleeve. The push-knot hole is arranged along the axial direction of the sleeve, and the diameter of the push-knot hole is smaller than the width of the knot.
[0008] The fixing head is provided with a wire passage groove at the end of the push-joint hole near the sleeve, and the wire passage groove is connected to the push-joint hole.
[0009] The wire gripper provided by this utility model has the following advantages compared with the prior art:
[0010] In use, first extend the gripping end of the suture forceps into the surgically prepared and sutured wound. Then, move the movable rod along the inside of the cannula, causing the movable head to rotate so that the movable head and the fixed head of the rotating groove grip the suture. Next, pull the suture forceps to straighten the suture to be knotted at the appropriate distance from the wound. Then, thread the knot onto the suture, pass the suture through the knot-pushing hole, and exit through the suture groove. Finally, the medical staff pulls the suture with one hand and pushes the suture forceps with the other. The knot is pushed towards the wound by the fixed head through the knot-pushing hole. Once the knot reaches the wound, stop moving and remove the suture forceps. The whole process is relatively simple and convenient. The gripping device is simple, integrating the functions of gripping the suture and pushing the knot. Using a single instrument not only reduces the cost of medical instruments but also improves surgical efficiency by eliminating the need to replace instruments midway.
[0011] Preferably, the fixing head is provided with a rotating groove and a connecting groove, one end of the connecting groove is connected to the inside of the sleeve, and the other end of the connecting groove is connected to the rotating groove;
[0012] One end of the movable rod extends into the rotating groove through the connecting groove, and the end of the movable rod located in the rotating groove is used to be movably connected to the movable head, and the movable head is used to be rotatably connected to the rotating groove.
[0013] Preferably, the movable head is rotatably mounted in the rotating groove via a first pin;
[0014] The movable head has a waist-shaped hole at one end near the first pin, and the movable rod has a second pin that passes through the waist-shaped hole.
[0015] Preferably, the upper end face of the fixed head is provided with a plurality of first gripping teeth arranged along the axial direction of the sleeve; the lower end face of the movable head is provided with a plurality of second gripping teeth arranged along the axial direction of the movable rod, and the first gripping teeth and the second gripping teeth mesh with each other.
[0016] Preferably, the wire guide groove is arranged along a direction perpendicular to the axis of the push-joint hole, and one end of the wire guide groove penetrates the side wall of the fixing head.
[0017] Preferably, the wire gripper further includes a handle, which includes a fixed handle and a rotating handle. The end of the sleeve away from the fixed head is fixedly connected to the upper end of the fixed handle. The end of the movable rod away from the movable head is movably connected to the rotating handle. The rotating handle rotates relative to the fixed handle to move the movable rod within the sleeve.
[0018] Preferably, the upper end of the fixed handle is provided with a movable groove, and the lower end of the movable groove and one side of the movable groove both penetrate the fixed handle; the upper end of the rotating handle is inserted into the movable groove from the lower end of the movable groove and is rotatably connected to the fixed handle.
[0019] The end of the movable rod away from the movable head extends from one side of the movable groove into the movable groove and is movably connected to the rotating handle.
[0020] Preferably, the wire gripper further includes a return spring, which is sleeved on the outside of one end of the movable rod located in the movable groove, and the return spring is located between the end of the sleeve and the side wall of the rotating handle.
[0021] Preferably, a connecting block is provided at the upper end of the rotating handle, and the connecting block at the upper end of the rotating handle is inserted into the movable groove and rotatably connected by a third pin. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of the medical suture cutter according to an embodiment of the present invention;
[0023] Figure 2 This is a schematic diagram of the overall structure of the shearing component according to an embodiment of the present utility model;
[0024] Figure 3 This is a schematic cross-sectional view of the medical suture cutter according to an embodiment of the present invention.
[0025] Explanation of reference numerals in the attached figures:
[0026] 1. Movable rod, 2. Sleeve, 3. Gripper, 31. Fixed head, 310. First gripping tooth, 32. Movable head, 320. Second gripping tooth, 33. Rotating groove, 34. Connecting groove, 35. Waist-shaped hole, 36. Second pin, 37. Push-joint hole, 38. Wire passage groove, 39. First pin, 4. Handle, 41. Fixed handle, 42. Rotating handle, 43. Movable groove, 44. Connecting block, 45. Third pin, 5. Return spring. Detailed Implementation
[0027] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.
[0028] In the description of this utility model, it should be understood that the terms "upper", "lower first pin", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0029] It should be noted that in the XYZ coordinate system provided in this article, the positive direction of the X-axis represents the right, and the negative direction of the X-axis represents the left; the positive direction of the Y-axis represents the front, and the negative direction of the Y-axis represents the back; the positive direction of the Z-axis represents the top, and the negative direction of the Z-axis represents the bottom. The meanings of the Z-axis, X-axis, and Y-axis are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0030] See Figures 1-3 The present invention provides a wire gripper, comprising a movable rod 1, a sleeve 2, and a gripping component 3. The gripping component 3 includes a fixed head 31 and a movable head 32. The fixed head 31 is fixedly connected to one end of the sleeve 2, and the movable head 32 is rotatably connected to the fixed head 31. One end of the movable head 32 is movably connected to one end of the movable rod 1, and the movable rod 1 is slidably connected inside the sleeve 2.
[0031] The fixed head 31 is provided with a push-knot hole 37 at the end away from the sleeve 2. The push-knot hole is arranged along the axial direction of the sleeve 2, and the diameter of the push-knot hole 37 is smaller than the width of the knot.
[0032] The fixing head 31 is provided with a wire groove 38 at one end of the push-joint hole 37 near the sleeve 2, and the wire groove 38 is connected to the push-joint hole 37.
[0033] Specifically, the movable rod 1 moves along the inside of the sleeve 2 toward the end away from the fixed head 31, causing the movable head 32 to rotate. The movable head 32 and the fixed head 31 open at an angle to clamp the rope. Then, the movable rod 1 moves along the inside of the sleeve 2 toward the end closer to the fixed head 31, causing the movable head 32 to rotate. The movable head 32 and the fixed head 31 merge to clamp the rope.
[0034] In this embodiment, during use, the end of the suture clamp with the gripping member 3 is first extended into the surgically repaired and sutured wound; then, the movable rod 1 moves along the inside of the sleeve 2, causing the movable head 32 to rotate, so that the movable head 32 and the rotating groove fixing head 31 grip the suture; then, the suture clamp is pulled to straighten the suture to be knotted at the surgically repaired and sutured wound to a suitable distance from the wound; then, the knot is threaded onto the suture to be knotted, and the suture is threaded into the push-knot hole 37, and the suture... The suture thread passes through the suture groove 38. Finally, the medical staff pulls the suture with one hand and pushes the suture-grabbing forceps with the other. The knot is pushed towards the wound by the fixing head 31 through the push-knot hole 37. When the knot reaches the wound, the movement stops, and the suture-grabbing forceps are removed. The whole process is relatively simple and convenient. The grasping component 3 is relatively simple, integrating the functions of grasping the suture and pushing the knot. Using one tool for operation not only reduces the cost of medical instruments but also improves surgical efficiency by allowing for replacement of medical instruments midway through the procedure.
[0035] See Figures 2-3 Preferably, the fixing head 31 is provided with a rotating groove 33 and a connecting groove 34. One end of the connecting groove 34 is connected to the inside of the sleeve 2, and the other end of the connecting groove 34 is connected to the rotating groove 33.
[0036] One end of the movable rod 1 extends into the rotating groove 33 through the connecting groove 34, and the end of the movable rod 1 located in the rotating groove 33 is used to be movably connected to the movable head 32, and the movable head 32 is used to be rotatably connected to the rotating groove 33.
[0037] In this embodiment, the movable head 32 is connected to the fixed head 31 by being disposed inside the rotating groove 33, and the movable rod 1 is connected to the movable head 32 through the connecting groove 34. This not only helps to enhance the stability of the connection between the movable head 32 and the fixed head 31, but also makes the movable rod 1 more stable when driving the movable head 32 to move.
[0038] See Figure 3 Preferably, the movable head 32 is rotatably mounted in the rotating groove 33 via the first pin 39.
[0039] The movable head 32 is provided with a waist-shaped hole 35 at one end near the first pin 39, and the movable rod 1 is provided with a second pin 36, which passes through the waist-shaped hole 35.
[0040] Specifically, the second pin 36 passes through the waist-shaped hole 35 to realize the movable connection between the movable rod 1 and the movable head 32. When the movable rod 1 moves away from the movable head 32, the movable rod 1 cooperates with the second pin 36 through the waist-shaped hole 35 to pull the movable head 32 to rotate around the first pin 39.
[0041] In this embodiment, under normal conditions, the movable rod 1 is positioned appropriately within the sleeve 2. At this time, the movable rod 1 does not act on the movable head 32, and the movable head 32 and the fixed head 31 are in a closed state. When it is necessary to grasp the rope, the movable rod 1 is moved so that it moves towards the end away from the grasping member 3. In addition, the first pin 39, the second pin 36, and the waist-shaped hole 35 cooperate with each other to drive the movable head 32 to rotate, opening the movable head 32 and the fixed head 31, so that the movable head 32 and the fixed head 31 are in an open state. Then, the rope is aligned, and then the movable rod 1 is moved towards the grasping member 3, so that the movable head 32 and the fixed head 31 merge to grasp the rope. The operation is simple and convenient.
[0042] See Figures 2-3 Preferably, the upper end face of the fixed head 31 is provided with a plurality of first gripping teeth 310 arranged along the axial direction of the sleeve 2; the lower end face of the movable head 32 is provided with a plurality of second gripping teeth 320 arranged along the axial direction of the movable rod 1, and the first gripping teeth 310 and the second gripping teeth 320 mesh with each other.
[0043] In this embodiment, the movable rod 1 moves along the inside of the sleeve 2 toward the end away from the fixed head 31, driving the movable head 32 to rotate. The movable head 32 and the fixed head 31 open at an angle to clamp the rope. Then, the movable rod 1 moves along the inside of the sleeve 2 toward the end closer to the gripper 3, driving the movable head 32 to rotate. The movable head 32 and the fixed head 31 merge, and the first gripping tooth 310 and the second gripping tooth 320 mesh to clamp the rope, which helps to improve the stability of gripping the rope.
[0044] See Figure 2 Preferably, the wire groove 38 is arranged along the axis perpendicular to the push hole 37, and one end of the wire groove 38 penetrates the side wall of the fixing head 31.
[0045] In this embodiment, after the knot is installed and the cord is threaded, the medical staff pulls the cord with one hand and pushes the suture clamp with the other. Since the suture groove 38 is arranged along the axis perpendicular to the push hole 37, and one end of the suture groove 38 passes through the side wall of the fixing head 31, the cord will not get stuck inside the gripper 3 when the medical staff pulls the cord and the fixing head 31 pushes the knot to move.
[0046] See Figure 1 Preferably, the wire gripper further includes a handle 4, which includes a fixed handle 41 and a rotating handle 42. The end of the sleeve 2 away from the fixed head 31 is fixedly connected to the upper end of the fixed handle 41. The end of the movable rod 1 away from the movable head 32 is movably connected to the rotating handle 42. The rotating handle 42 rotates relative to the fixed handle 41 to move the movable rod 1 within the sleeve 2.
[0047] Specifically, the upper end of the fixed handle 41 forms an obtuse angle with the body of the fixed handle 41, and the end of the sleeve 2 away from the gripping member 3 is fixedly connected to the upper end of the fixed handle 41, so that when the rotating handle 42 rotates, it can pull the movable rod 1 to move relative to the sleeve 2.
[0048] The rotating handle 42 is provided with a connecting groove, and the end of the movable rod 1 away from the gripping member 3 is provided with a movable pin. The movable pin is used to insert into the connecting groove and can move within the connecting groove to realize the movable rod 1 and the rotating handle 42 being movably connected. When the rotating handle 42 rotates relative to the fixed handle 41, the movable pin is used to move within the connecting groove to pull the movable rod 1 relative to the sleeve 2.
[0049] In this embodiment, when the lower end of the rotating handle 42 is pressed, the lower end of the rotating handle 42 moves closer to the fixed handle 41, and the upper end of the rotating handle 42 moves away from the fixed handle 41. The movable rod 1 is pushed by the rotating handle 42 to move towards the gripping member 3, so that the movable head 32 and the fixed head 31 are in a closed state, which facilitates the gripping of the rope. When the lower end of the rotating handle 42 is moved away from the fixed handle 41, and the upper end of the rotating handle 42 moves closer to the fixed handle 41, the movable rod 1 is driven by the rotating handle 42 to move away from the gripping member 3, causing the movable head 32 to rotate. The movable head 32 and the fixed head 31 are in an open state, which facilitates the release of the gripping action. The fixed handle 41 and the rotating handle 42 of the handle member 4 are designed to facilitate operation by medical personnel. By rotating the rotating handle 42 and the fixed handle 41, the rope can be gripped, thereby improving the gripping efficiency.
[0050] See Figure 3 Preferably, the upper end of the fixed handle 41 is provided with a movable groove 43, and the lower end and one side of the movable groove 43 both penetrate the fixed handle 41; the upper end of the rotating handle 42 is inserted into the movable groove 43 from the lower end of the movable groove 43 and is rotatably connected to the fixed handle 41.
[0051] The end of the movable rod 1 away from the movable head 32 extends from one side of the movable groove 43 into the movable groove 43 and is movably connected to the rotating handle 42.
[0052] Specifically, the movable groove 43 is connected to the interior of the sleeve 2, and the movable rod 1 extends out of the sleeve 2 and into the movable groove 43.
[0053] In this embodiment, the movable groove 43 is configured to provide installation space for the connection between the movable rod 1 and the rotating handle 42, and has a protective function, effectively preventing foreign objects from getting stuck in the sleeve 2 or at the connection between the movable rod 1 and the rotating handle 42, which could cause jamming.
[0054] See Figure 3 Preferably, the wire gripper further includes a return spring 5, which is sleeved on the outside of one end of the movable rod 1 located in the movable groove 43, and the return spring 5 is located between the end of the sleeve 2 and the side wall of the rotating handle 42.
[0055] Specifically, the diameter of the return spring 5 is smaller than the diameter of the sleeve 2, so that the return spring 5 can abut against the side wall of the rotating handle 42 and the end of the sleeve 2.
[0056] In this embodiment, under normal conditions, the movable rod 1 is positioned appropriately within the sleeve 2 by the action of the return spring 5. At this time, the movable rod 1 does not act on the movable head 32, and the movable head 32 is in an open state with the fixed head 31. The rotating handle 42 is also in an open state relative to the fixed handle 41. When it is necessary to grab the rope, the gripping member 3 is aligned with the rope, and the lower end of the rotating handle 42 is pressed. The lower end of the rotating handle 42 moves close to the fixed handle 41, and the upper end of the rotating handle 42 moves away from the fixed handle 41. The movable rod 1 is pushed by the rotating handle 42 to move towards the gripping member 3, thereby squeezing the return spring 5. In addition, the first pin 39, the second pin 36, and the waist-shaped hole 35 cooperate with each other to drive the movable head 32 to rotate, so that the movable head 32 and the fixed head 31 are in a closed state, so as to grab the rope. When the lower end of the rotating handle 42 is moved away from the fixed handle 41, and the upper end of the rotating handle 42 is moved closer to the fixed handle 41, the movable rod 1 is driven by the rotating handle 42 to move away from the gripper 3. At the same time, under the action of the return spring 5, the movable head 32 is driven to rotate, and the movable head 32 and the fixed head 31 are in an open state to facilitate the release of the gripping action. The operation is simple and convenient.
[0057] In other embodiments, the return spring 5 may also be other elastic elements with deformation capability. The elastic element is disposed between the side wall of the rotating handle 42 and the sleeve 2, and plays the role of driving the movable rod 1 and the movable head 32 to return to their original positions.
[0058] See Figure 1 Preferably, the upper end of the rotating handle 42 is provided with a connecting block 44, which is inserted into the movable groove 43 and rotatably connected by a third pin 45.
[0059] In this embodiment, when the rotating handle 42 rotates, the connecting block 44 rotates within the movable groove 43, which helps to improve the stability of the rotating handle 42 and the fixed handle 41 when they rotate.
[0060] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.
Claims
1. A type of wire gripper, characterized in that, It includes a movable rod (1), a sleeve (2) and a gripping component (3). The gripping component (3) includes a fixed head (31) and a movable head (32). The fixed head (31) is fixedly connected to one end of the sleeve (2). The movable head (32) is rotatably connected to the fixed head (31). One end of the movable head (32) is movably connected to one end of the movable rod (1). The movable rod (1) is slidably connected inside the sleeve (2). The fixed head (31) is provided with a push-knot hole (37) at the end away from the sleeve (2). The push-knot hole is provided along the axial direction of the sleeve (2), and the diameter of the push-knot hole (37) is smaller than the width of the knot. The fixing head (31) is provided with a wire groove (38) at one end of the push hole (37) near the sleeve (2), and the wire groove (38) is connected to the push hole (37).
2. The wire-gripping pliers according to claim 1, characterized in that, The fixed head (31) is provided with a rotating groove (33) and a connecting groove (34). One end of the connecting groove (34) is connected to the inside of the sleeve (2), and the other end of the connecting groove (34) is connected to the rotating groove (33). One end of the movable rod (1) extends into the rotating groove (33) through the connecting groove (34), and the end of the movable rod (1) located in the rotating groove (33) is used to be movably connected to the movable head (32), and the movable head (32) is used to be rotatably connected to the rotating groove (33).
3. The wire-gripping pliers according to claim 2, characterized in that, The movable head (32) is rotatably mounted in the rotating groove (33) via the first pin (39); The movable head (32) has a waist-shaped hole (35) at one end near the first pin (39), and the movable rod (1) has a second pin (36) that passes through the waist-shaped hole (35).
4. The wire-gripping pliers according to claim 1, characterized in that, The upper end face of the fixed head (31) is provided with a plurality of first gripping teeth (310) arranged along the axial direction of the sleeve (2); the lower end face of the movable head (32) is provided with a plurality of second gripping teeth (320) arranged along the axial direction of the movable rod (1), and the first gripping teeth (310) and the second gripping teeth (320) mesh with each other.
5. The wire-gripping pliers according to claim 1, characterized in that, The wire groove (38) is arranged along the axis perpendicular to the push hole (37), and one end of the wire groove (38) penetrates the side wall of the fixing head (31).
6. The wire-gripping pliers according to claim 1, characterized in that, It also includes a handle (4), which includes a fixed handle (41) and a rotating handle (42). The end of the sleeve (2) away from the fixed head (31) is fixedly connected to the upper end of the fixed handle (41). The end of the movable rod (1) away from the movable head (32) is movably connected to the rotating handle (42). The rotating handle (42) rotates relative to the fixed handle (41) so that the movable rod (1) moves inside the sleeve (2).
7. The wire-gripping pliers according to claim 6, characterized in that, The upper end of the fixed handle (41) is provided with a movable groove (43), and the lower end of the movable groove (43) and one side of the movable groove (43) both penetrate the fixed handle (41); the upper end of the rotating handle (42) is inserted into the movable groove (43) from the lower end of the movable groove (43) and is rotatably connected to the fixed handle (41). The end of the movable rod (1) away from the movable head (32) extends from one side of the movable groove (43) into the movable groove (43) and is movably connected to the rotating handle (42).
8. The wire-gripping pliers according to claim 7, characterized in that, It also includes a return spring (5), which is sleeved on the outside of one end of the movable rod (1) located in the movable groove (43), and the return spring (5) is located between the end of the sleeve (2) and the side wall of the rotating handle (42).
9. The wire-gripping pliers according to claim 7, characterized in that, The upper end of the rotating handle (42) is provided with a connecting block (44), which is inserted into the movable groove (43) and rotatedly connected by a third pin (45).