Wire cutter

Abstract

The invention discloses a pair of wire cutters, which comprises a tip tube which is of a cylindrical structure and is internally provided with an accommodating space; the plain end part is arranged at one end of the tip pipe and is provided with an upward opening, so that a containing groove with an upward opening is formed in the plain end part; the first wire inlet is formed in the end surface of one end of the tip pipe and is communicated with the accommodating groove; the second wire inlet is formed in one side of the accommodating groove and is communicated with the accommodating groove; the jaw is arranged in the accommodating groove and is rotatably connected with the flat opening part; the connecting rod is coaxially arranged in the tip pipe, and one end of the connecting rod is rotatably connected with the jaw; one end of the first operation part is rotatably connected with the other end of the connecting rod; and one end of the second operation part is fixedly connected with the other end of the tip tube. The suture cutter can be used for cutting at any position of a suture line, and the defect that threading needs to be conducted from the tail end of the suture line when an existing instrument cuts the suture line is overcome.

Description

Technical Field

[0001] The invention relates to a wire cutter and belongs to the technical field of medical equipment. Background Art

[0002] At present, with the continuous development of medical technology, arthroscopic surgery has become a routine diagnosis and treatment method in bone and joint surgery. Among all the endoscopes in the body, arthroscopic surgery has the most comprehensive functions and the widest application. For example, meniscus suture and rotator cuff injury are usually performed after the bone and joint surgery, and then the sutures are used to suture the tissues in the cavity, and then the sutures need to be cut.

[0003] The thread cutter in the prior art is bulky and needs to be threaded from the end of the suture, and then the head of the thread cutter is pushed from outside the body along the thread to the end of the suture knot, thereby increasing the operation time and further increasing the pain of the patient. Summary of the invention

[0004] The invention designs and develops a wire cutter which can be installed and cut at any position of a suture line, thereby overcoming the defect that the existing instruments need to thread the suture line from the end when cutting the wire.

[0005] The technical solution provided by the present invention is:

[0006] A wire cutter, comprising:

[0007] The tip tube is a cylindrical structure with a receiving space inside;

[0008] A flat mouth portion, which is arranged at one end of the tip tube and has an upward opening, so that the flat mouth portion forms a receiving groove with an upward opening;

[0009] A first wire inlet, which is arranged on the end surface of the flat mouth portion and communicates with the accommodating groove;

[0010] A second wire inlet, which is opened on one side of the flat mouth portion and communicates with the accommodating groove;

[0011] The jaws are arranged in the receiving groove and are rotatably connected to the flat mouth portion.

[0012] Preferably, it also includes:

[0013] A connecting rod, which is coaxially arranged inside the tip tube, and one end of the connecting rod is rotatably connected to the jaw;

[0014] A first operating part, one end of which is rotatably connected to the other end of the connecting rod;

[0015] The second operating part has one end fixedly connected to the other end of the tip tube.

[0016] Preferably, two ears are provided at opposite intervals at one end of the jaws, and the other end of the jaws extends toward the second wire inlet to form a jaw blade portion.

[0017] Preferably, it also includes:

[0018] Two flat connection holes are oppositely arranged on the side walls of the receiving groove;

[0019] Two first jaw connection holes are respectively and oppositely opened on the two ears and located at the upper part of the ears;

[0020] Two second jaw connecting holes are respectively and oppositely arranged on the two supporting ears and are located at the lower part of the supporting ears.

[0021] Preferably, a connecting rod hole is opened at one end of the connecting rod, the connecting rod hole is located between the two first connecting holes, and the connecting rod is rotatably connected to the jaws through a connecting rod pin.

[0022] Preferably, the two second jaw connecting holes are riveted to the two flat-mouth connecting holes by rivets to achieve rotational connection.

[0023] Preferably, the jaw has a shearing edge on a side facing the receiving groove.

[0024] Preferably, the first wire inlet and the second wire inlet are both U-shaped structures.

[0025] Preferably, the connecting rod and the first operating part are connected via a rotating pin.

[0026] Preferably, the other ends of the first operating portion and the second operating portion are both circular ring structures for accommodating fingers.

[0027] The beneficial effects of the present invention are:

[0028] The invention provides a novel medical surgical wire cutter, which solves the problem that the existing medical instruments are inconvenient in wire cutting operation and need to thread the wire from the end of the suture.

[0029] The design of the front and side openings allows the suture to be loaded at any position, eliminating the need to load the suture from the end and then trim it, making operation easy and improving efficiency.

[0030] The large opening can hold two sutures at the same time, and the sharp blade can also cut two sutures at the same time, so that the doctor does not have to cut them one by one, doubling the cutting efficiency.

[0031] The pliers head is kept at a certain distance from the cutting position, which can retain a safe length of reserved wire at the knotting position, effectively control the length of the thread end, and prevent problems such as loose knots caused by over-cutting and excessively long thread ends.

[0032] The shearing part uses high-strength and high-hardness metal to ensure that the product will not break or fracture even after more than 500 shearing cycles. This effectively improves the mechanical strength and service life, ensures that the jaws will not break and remain in the cavity, and greatly reduces the risk of medical accidents.

[0033] The shape and spacing of the handles are designed based on the small and medium-sized hands of Chinese people. The ergonomic design can better reduce fatigue during long-term surgical card clearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 The present invention is a schematic structural diagram of the wire cutters.

[0035] Figure 2 It is a partial enlarged view of the tip tube and the jaws described in the present invention.

[0036] Figure 3 It is a structural schematic diagram of the jaws described in the present invention.

[0037] Figure 4 This is a schematic structural diagram of one end of the tip tube described in the present invention.

[0038] Figure 5 The figure is a schematic structural diagram of one end of the connecting rod according to the present invention.

[0039] Figure 6 The figure is a schematic structural diagram of the wire cutters of the present invention when in operation. DETAILED DESCRIPTION

[0040] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0041] like Figure 1-6 As shown, the present invention provides a wire cutter, which can be installed and cut at any position of the suture through the cooperation of the tip tube and the jaws, thereby overcoming the defect that the existing instruments need to thread the suture from the end when cutting the wire, and comprises: a jaw 110, a support ear 111, a first jaw connecting hole 112, a second jaw connecting hole 113, a pliers knife 114, a flat mouth portion 120, a receiving groove 121, a first wire inlet 122, a second wire inlet 123, a flat mouth hole 124, a tip tube 130, a first operating portion 140, a second operating portion 150, a connecting rod 160, a connecting rod hole 161, and a wire 200 to be cut.

[0042] The tip tube 130 is a cylindrical structure, and a receiving cavity is arranged inside the tip tube 130; one end of the tip tube 130 is a flat mouth portion 120, and the flat mouth portion 120 has an upward opening, so that the flat mouth portion 120 forms a receiving groove 121 with an upward opening for receiving the jaws 110. The jaws 110 are rotatably arranged in the receiving groove 121 of the flat mouth portion 120. The first wire inlet 122 is arranged on the end surface of one end of the flat mouth portion 120 and is connected to the receiving groove 121, and the second wire inlet 123 is arranged on one side of the flat mouth portion 120 and is connected to the receiving groove 121. The connecting rod 160 is coaxially arranged in the accommodating cavity of the tip tube 130, one end of the connecting rod 160 is rotatably connected to the jaw 110, the other end of the connecting rod 160 is rotatably connected to one end of the first operating part 140, one end of the second operating part 150 is fixedly connected to the outer wall of the other end of the tip tube 130, and the first operating part 140 and the connecting rod 160 are rotatably connected to form a driving structure. The connecting rod 160 is driven by the first operating part 140 to rotate the jaw 110 and form a shear structure with the accommodating groove 121.

[0043] Two ears 111 are arranged at one end of the jaw 110 at intervals, and the other end of the jaw 110 extends to one side of the second wire inlet 123 to form a clamping part. Two flat connection holes 124 are arranged on the side walls of the flat part 120 on both sides of the receiving groove 121; two first jaw connection holes 112 are arranged on the upper part of the two ears 111, and two second jaw connection holes 113 are arranged on the lower part of the two ears 111. A connecting rod hole 161 is arranged at one end of the connecting rod 160.

[0044] The connecting rod hole 161 is arranged between the two first jaw connection holes 112 and matched with the two first jaw connection holes 112. The connecting rod pin passes through the first jaw connection hole 112 and the connecting rod hole 161, so that the connecting rod 160 and the jaw 110 are rotatably connected to form a driving structure. The two second jaw connection holes 113 are matched with the two flat connection holes 124 and riveted by rivets to achieve rotational connection and form a rotating structure. The diameter of the rivet is smaller than the diameter of the second jaw connection hole 113 and the flat connection hole 124, so that a gap is formed between the rivet and each connection hole to facilitate rotation.

[0045] A shearing blade is provided on one side of the jaw 110 facing the receiving groove 121 , and the flat portion 120 is rotatably connected to the connecting rod 160 through the jaw 110 to form a jaw shearing structure.

[0046] In the present invention, as a preferred embodiment, both the first wire inlet 122 and the second wire inlet 123 are U-shaped structures. The design of the front and side openings allows the suture to be loaded at any position without loading the suture from the end and then cutting the suture.

[0047] The other ends of the first operating portion 140 and the second operating portion 150 are both annular structures, wherein the annular structure of the first operating portion 140 is used to accommodate a finger, and the annular structure of the second operating portion 150 is used to accommodate a thumb.

[0048] like Figure 6 As shown, when working, the wire cutters are inserted into the joint cavity, and after the cutting position is determined, the suture is clamped with the first wire entry port 122 and the second wire entry port 123 at the front and the side to fix it. The thumb and fingers are inserted into the second operating part 150 and the first operating part 140 to drive the fingers to rotate the driving link 160, which drives the jaws 110 to rotate and cut.

[0049] The novel medical surgical wire cutters provided by the invention solve the problem that the existing medical instruments are inconvenient to cut wires and need to thread the wires from the ends of the sutures.

[0050] The design of the front and side openings allows the suture to be loaded at any position, eliminating the need to load the suture at the end for thread trimming, making operation easier and improving efficiency.

[0051] The large opening can hold two sutures at the same time, and the sharp blade can also cut two sutures at the same time, so that the doctor does not have to cut them one by one, doubling the cutting efficiency.

[0052] The pliers head is kept at a certain distance from the cutting position, which can retain a safe length of reserved wire at the knotting position, effectively control the length of the thread end, and prevent problems such as loose knots caused by over-cutting and excessively long thread ends.

[0053] The shearing part uses high-strength and high-hardness metal to ensure that the product will not break or fracture even after more than 500 shearing cycles. This effectively improves the mechanical strength and service life, ensures that the jaws will not break and remain in the cavity, and greatly reduces the risk of medical accidents.

[0054] The shape and spacing of the handles are designed based on the small and medium-sized hands of Chinese people. The ergonomic design can better reduce fatigue during long-term surgical card clearing.

[0055] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A wire cutter, characterized in that: include: The tip tube is a cylindrical structure with a receiving space inside; A flat mouth portion, which is arranged at one end of the tip tube and has an upward opening, so that the flat mouth portion forms a receiving groove with an upward opening; A first wire inlet, which is arranged on the end surface of the flat mouth portion and communicates with the accommodating groove; A second wire inlet, which is opened on one side of the flat mouth portion and communicates with the accommodating groove; The jaws are arranged in the receiving groove and are rotatably connected to the flat mouth portion.

2. The wire cutter according to claim 1, characterized in that: Also includes: A connecting rod, which is coaxially arranged inside the tip tube, and one end of the connecting rod is rotatably connected to the jaw; A first operating part, one end of which is rotatably connected to the other end of the connecting rod; The second operating part has one end fixedly connected to the other end of the tip tube.

3. The wire cutter according to claim 2, characterized in that: One end of the jaws is provided with two supporting ears at intervals, and the other end of the jaws extends toward one side of the second wire inlet to form a jaw cutter portion.

4. The wire cutter according to claim 3, characterized in that: Also includes: Two flat connection holes are oppositely arranged on the side walls of the receiving groove; Two first jaw connection holes are respectively and oppositely opened on the two ears and located at the upper part of the ears; Two second jaw connecting holes are respectively and oppositely arranged on the two supporting ears and are located at the lower part of the supporting ears.

5. The wire cutter according to claim 4, characterized in that: A connecting rod hole is provided at one end of the connecting rod, the connecting rod hole is located between the two first connecting holes, and the connecting rod is rotatably connected to the jaws through a connecting rod pin.

6. The wire cutter according to claim 5, characterized in that: The two second jaw connection holes are riveted to the two flat-mouth connection holes by rivets to achieve rotational connection.

7. The wire cutter according to claim 6, characterized in that: The jaw has a shearing edge on one side facing the receiving groove.

8. The wire cutter according to claim 7, characterized in that: The first wire inlet and the second wire inlet are both U-shaped structures.

9. The wire cutter according to claim 8, characterized in that: The connecting rod is connected to the first operating part via a rotating pin.

10. The wire cutter according to claim 9, characterized in that: The other ends of the first operating portion and the second operating portion are both circular ring structures for accommodating fingers.

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