A wire pressing handle

Abstract

The present invention provides a thread pressing handle, comprising a handle lower cover and a handle upper cover that cooperate with each other, the handle lower cover is provided with at least two spring pieces, and a gap is formed between the free ends of the at least two spring pieces; the handle upper cover is provided with a first protrusion; after the handle lower cover and the handle upper cover cooperate, the first protrusion squeezes the spring piece to reduce the gap between the free ends of the spring piece. The thread clamping mechanism of the thread pressing handle provided by the present invention can avoid the sutures being lifted by the thread clamping mechanism in the prior art, the thread clamping is stable, the structure is simple, and it is convenient to perform the operation faster and more smoothly.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices and relates to a wire pressing handle. Background Art

[0002] In the current field of medical technology, the number of patients undergoing minimally invasive sports medicine surgery in China is increasing. Minimally invasive sports medicine surgery mainly uses minimally invasive methods to pull and bind the patient's ligaments or defective bones, thereby relieving or eliminating pain, restoring joint activity and original function, and improving the patient's quality of life.

[0003] However, in existing minimally invasive sports medicine surgeries, medical staff usually use smaller metal anchors to repair patients' shoulder joints. The sutures in the metal anchor handles are pressed and fixed by an internal pressure head. The fixation is not firm and there is a risk of the pressure head lifting, which affects the progress of the operation. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a wire pressing handle to solve the technical problem that the wire clamping mechanism in the prior art will tilt up, which is inconvenient to use and thus causes a long operation time.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A wire crimping handle, comprising a handle lower cover and a handle upper cover that cooperate with each other;

[0007] The handle lower cover is provided with at least two spring pieces, and a gap is formed between the free ends of the at least two spring pieces;

[0008] The handle upper cover is provided with a first protrusion;

[0009] After the handle lower cover and the handle upper cover are matched, the first protrusion squeezes the at least two spring sheets to reduce the gap between the free ends of the spring sheets.

[0010] The spring piece comprises a connecting piece connected to the lower cover of the handle and a wire pressing head arranged at the free end of the connecting piece.

[0011] The thickness of the connecting piece gradually increases from the middle to both ends; and the crimping head has an arc surface.

[0012] The end surfaces of the connecting piece and the crimping head on one side close to the handle upper cover are flush, and the height of the connecting piece on the other side of the end surface of the two is smaller than the height of the crimping head.

[0013] The angle between the axis of the spring piece and the axis of the handle lower cover is an acute angle.

[0014] The handle lower cover is provided with a groove, one end of the groove is provided with a first through hole, the spring piece is arranged in the first through hole and connected to the hole wall of the first through hole.

[0015] Through grooves are arranged on both side walls of the groove.

[0016] The first protrusions are cylindrical; and the number of the first protrusions is at least 2.

[0017] A plurality of second protrusions are also arranged on the side opposite to the side where the first protrusion of the handle upper cover is located.

[0018] The handle upper cover is slidably matched with the handle lower cover.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The clamping mechanism of the thread pressing handle provided by the present invention comprises a spring sheet respectively arranged on the lower cover of the handle and a protrusion on the upper cover of the handle, and the two cooperate to clamp and fix the suture, thereby avoiding the risk of the clamping mechanism tilting, and can clamp the suture more firmly and stably, so that the operation can be performed faster and more smoothly;

[0021] The wire pressing handle provided by the invention is easy to use, has a simple structure and is easy to produce. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the wire pressing handle provided in Example 1;

[0023] Figure 2 is a schematic structural diagram of the handle lower cover provided in Example 1;

[0024] Figure 3 is a schematic diagram of the structure of the handle upper cover provided in Example 1;

[0025] Figure 4 It is a schematic diagram of the first protrusion squeezing the spring sheet provided in Example 1.

[0026] in:

[0027] 1. Handle lower cover;

[0028] 11, spring piece; 111, connecting piece; 112, crimping head;

[0029] 12, through groove; 13, guide groove; 141, first notch; 142, second notch; 15, second through hole; 16, sliding guide rail; 17, first through hole;

[0030] 2. Handle cover;

[0031] 21, first protrusion; 22, second protrusion; 23, guide protrusion; 24, third protrusion; 25, sliding structure; 26, arc structure;

[0032] 3. Pressing rod;

[0033] 4. Metal anchors;

[0034] 5. Suture line. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0036] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "axial", "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0038] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0039] Example 1

[0040] like Figures 1 to 4 As shown, a wire crimping handle comprises a handle lower cover 1 and a handle upper cover 2 which cooperate with each other.

[0041] The handle lower cover 1 is provided with at least two spring pieces 11, and a gap is formed between the free ends of the at least two spring pieces 11;

[0042] The handle upper cover 2 is provided with a first protrusion 21;

[0043] After the handle lower cover 1 and the handle upper cover 2 are matched, the first protrusion 21 squeezes the spring sheet 11 to reduce the gap between the free ends of the spring sheet 11;

[0044] The number of the spring pieces can be 2, 3, 4 or 5, etc. In this embodiment, the number of the spring pieces is 2, and they are symmetrically fixed on the handle lower cover 1;

[0045] The spring piece 11 comprises a connecting piece 111 connected to the handle lower cover 1 and a thread pressing head 112 arranged at the free end of the connecting piece 111. When actually in use, the thread pressing head clamps and fixes the suture;

[0046] The thickness of the connecting piece 111 gradually increases from the middle to both ends. The thickness of the spring piece is related to the material, and different thicknesses can be selected according to different materials. In actual use, the first protrusion 21 squeezing the spring piece 11 with a smaller force is a preferred solution;

[0047] The crimping head 112 has an arc surface, such as a cylindrical or arc-shaped crimping head;

[0048] The end surfaces of the connecting piece 111 and the crimping head 112 close to the handle upper cover 2 are flush, and the height of the connecting piece 111 on the other end surface of the two is less than the height of the crimping head 112, so as to further reduce the squeezing force of the first protrusion 21 squeezing the spring sheet 11;

[0049] The angle between the axis of the spring sheet 11 and the axis of the handle lower cover 1 is an acute angle, so as to facilitate clamping of the suture;

[0050] The handle lower cover 1 is provided with a groove, one end of which is provided with a first through hole 17, the spring piece is arranged in the first through hole 17 and connected to the hole wall of the first through hole 17, and the modified design can further avoid the large resistance to the movement of the spring piece when the first protrusion squeezes the spring piece.

[0051] The bottom of the groove is provided with a plurality of second through holes 15 along the axis, and the second through holes 15 are convenient for observing and cleaning the inside of the crimping handle. In this embodiment, the number of the second through holes 15 is 6, and they are symmetrically arranged with the axis of the handle lower cover 1 as the symmetry axis.

[0052] The groove is further provided with a guide groove 13, which is higher than the bottom surface of the groove; the guide groove 13 is provided with a first notch 141 and a second notch 142 along the sliding direction of the handle upper cover 2 when the handle upper cover 2 and the handle lower cover 1 are matched;

[0053] Sliding guide rails 16 are also symmetrically arranged on both side walls of the groove;

[0054] The groove of the handle lower cover 1 is also provided with a winding device (not shown in the figure) for winding the suture thread. The setting position of the winding device is based on not hindering the cooperation between the handle upper cover 2 and the handle lower cover 1 and the clamping of the suture thread. The specific setting position can be determined by those skilled in the art according to the needs.

[0055] The first protrusions 21 provided on the handle upper cover 2 are cylindrical; the number of the first protrusions 21 is at least 2, such as 3, 4, 5, 7 or 10, etc. In the present embodiment, the number of the first protrusions 21 is 2, and they are symmetrically arranged on the handle upper cover 2 with the axis of the handle upper cover as the symmetry axis; when the number of the first protrusions 21 is 3 or more, the first protrusions 21 can be distributed on both sides of the axis of the handle upper cover, and preferably, when the handle upper cover 2 cooperates with the handle lower cover 1, the first protrusions 21 can play the role of squeezing the spring sheet;

[0056] The side opposite to the first protrusion 21 of the handle upper cover 2 is also provided with a plurality of second protrusions 22; the plurality of second protrusions 22 are distributed along the axis, and the second protrusions 22 are used to increase the friction between the hand and the handle upper cover when in use, so as to facilitate the matching and separation of the handle upper cover 2 and the handle lower cover 1. In this embodiment, the number of the second protrusions is 6, and all of them are arc-shaped; the shape and number of the second protrusions can be adjusted, such as the shape can be curved, cylindrical, etc., and the number can be 3, 4, 7, 10 or 50, etc.;

[0057] The side of the handle upper cover 2 provided with the first protrusion 21 is also provided with a guide protrusion 23 and a third protrusion 24, and the guide protrusion 23 and the third protrusion 24 are coaxial with the handle upper cover 2;

[0058] The first protrusion 21, the guide protrusion 23 and the third protrusion 24 are sequentially arranged on the same side of the handle upper cover 2 along the sliding direction;

[0059] The height of the guide protrusion 23 from the handle upper cover 2 gradually decreases along the sliding direction of the handle upper cover 2 when the handle upper cover 2 is matched with the handle lower cover 1; the guide protrusion 23 is used to slide across the first notch 141 and the second notch 142 of the guide groove 13 when the handle lower cover 1 is matched with the handle upper cover 2, so as to guide the sliding of the handle upper cover 2;

[0060] The side of the third protrusion 24 away from the guide protrusion 23 has an arc concave in the sliding direction of the handle upper cover during engagement, so as to facilitate the sliding engagement and sliding separation of the handle upper cover 2 and the handle lower cover 1; the third protrusion 24 can also slide through the first notch 141 and the second notch 142 of the guide groove 13;

[0061] The handle upper cover 2 is also provided with a sliding structure 25 that cooperates with the sliding guide rail 16. The sliding structure 25 extends in a direction perpendicular to the axis of the handle upper cover 2, and an arc structure 26 is provided on one side close to the sliding guide rail 16 to reduce the sliding resistance between the sliding guide rail 16 and the sliding structure 25.

[0062] The crimping handle also includes a crimping rod 3 with one end inserted into the handle lower cover 1, and the crimping rod 3 is used to fix the metal anchor 4 with sutures; a through groove 12 is also provided on the surface between the groove of the handle lower cover 1 and the crimping rod 3;

[0063] In this embodiment, the handle upper cover 2 and the handle lower cover 1 are made of plastic. The handle upper cover 2 and the handle lower cover 1 can also be made of other materials, such as metal, but the plastic material is less costly.

[0064] The method for cooperating or separating the handle lower cover 1 and the handle upper cover 2 is as follows: when cooperating, the sliding structure 25 slides with the sliding guide rail 16, the handle upper cover 2 slides on the handle lower cover 1, and the guide protrusion 23 and the third protrusion 24 pass through the first notch 141 and the second notch 142 of the guide groove 13 in turn. After the third protrusion 24 passes through the second notch 142, it is blocked by the guide groove 13, which can prevent the handle upper cover 2 from moving backward; when separating, the sliding structure 25 slides and separates from the sliding guide rail 16, and then the third protrusion 24 of the handle upper cover 2 withdraws to the second notch 142 and the first notch 141 of the handle lower cover 1 in turn through the arc structure 26 set therein, and then slides along the guide protrusion 23, and finally the two are separated.

[0065] The matching mode of the handle upper cover 2 and the handle lower cover 1 can also be thread matching, sleeve taper matching, etc., or other sliding matching forms other than sliding guide rails. Those skilled in the art can select other matching modes of the handle upper cover and the handle lower cover according to design requirements. When selecting other matching modes, the specific structures of the handle upper cover and the handle lower cover need to be slightly adjusted.

[0066] The method of using the crimping handle is as follows:

[0067] The suture is passed through the metal anchor, and then the metal anchor is fixed to the wire pressing rod of the wire pressing handle, and the suture is passed between the two spring sheets. Then, the handle upper cover is inserted into the handle lower cover, and the handle upper cover and the handle lower cover are fixed together. The first protrusion provided on the handle upper cover squeezes the spring sheet provided on the handle lower cover, so that the spring sheet is deformed and the gap between the spring sheets becomes narrower, so that the suture can be squeezed and the suture is clamped.

[0068] The wire pressing handle of the present invention presses the wire through a clamping mechanism formed by a spring sheet arranged on the lower cover of the handle and a first protrusion on the upper cover of the handle, thereby avoiding the risk of the existing clamping mechanism tilting; the clamping mechanism is simple and easier to manufacture; the wire pressing handle is easy to use.

[0069] The applicant declares that the above is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention shall fall within the protection scope and disclosure scope of the present invention.

Claims

1. A crimping handle, comprising a handle lower cover (1) and a handle upper cover (2) that cooperate with each other, characterized in that: The handle lower cover (1) is provided with at least two spring sheets (11), and a gap is formed between the free ends of the at least two spring sheets (11); The handle upper cover (2) is provided with a first protrusion (21); After the handle lower cover (1) and the handle upper cover (2) are matched, the first protrusion (21) squeezes the spring sheet (11) so that the gap between the free ends of the spring sheet (11) is reduced; The spring sheet (11) comprises a connecting sheet (111) connected to the handle lower cover (1) and a thread pressing head (112) arranged at the free end of the connecting sheet (111); The thickness of the connecting piece (111) gradually increases from the middle to both ends; the crimping head (112) has an arc surface; A guide protrusion (23) and a third protrusion (24) are also provided on one side of the handle upper cover (2) provided with the first protrusion (21); the guide protrusion (23) and the third protrusion (24) are both coaxial with the handle upper cover (2); the first protrusion (21), the guide protrusion (23) and the third protrusion (24) are sequentially provided on the same side of the handle upper cover (2) along the sliding direction; The side of the third protrusion (24) away from the guide protrusion (23) has an arc that is concave in the sliding direction of the handle upper cover during engagement.

2. The wire crimping handle according to claim 1, characterized in that: The end surfaces of the connecting piece (111) and the crimping head (112) on one side close to the handle upper cover (2) are flush, and the height of the connecting piece (111) on the other side of the end surface is less than the height of the crimping head (112).

3. The wire crimping handle according to claim 1, characterized in that: The angle between the axis of the spring sheet (11) and the axis of the handle lower cover (1) is an acute angle.

4. The wire crimping handle according to claim 1, characterized in that: The handle lower cover (1) is provided with a groove, one end of the groove is provided with a first through hole (17), the spring piece is arranged in the first through hole (17) and is connected to the hole wall of the first through hole (17).

5. The wire crimping handle according to claim 4, characterized in that: Through grooves (12) are provided on both side walls of the groove.

6. The wire crimping handle according to claim 1, characterized in that: The first protrusion (21) is cylindrical; the number of the first protrusions (21) is at least 2.

7. The wire crimping handle according to claim 1 or 6, characterized in that: A plurality of second protrusions (22) are also provided on the side of the handle upper cover (2) opposite to the side where the first protrusion (21) is located.

8. The wire crimping handle according to claim 1, characterized in that: The handle upper cover (2) and the handle lower cover (1) are slidably matched.

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