Locking structure of closed cutter for open operation

Abstract

The utility model provides a locking structure of an open type operation closed cutter, which belongs to the technical field of medical instruments and comprises a first handle and a second handle, forceps heads of the first handle and the second handle are rotatably connected with each other through a knob, and a guide block is fixedly connected in the first handle. A blade is movably installed in the first handle and located on one side of the guide block, a locking piece is installed in the first handle and located on the other side of the guide block, the locking piece is used for locking and positioning the blade, and a driving piece is installed on the side of the blade. The problems that in the using process of an existing open type operation closed cutter, a wrench is inevitably touched by mistake, so that a blade moves, the blade cannot be locked, then human tissue is cut, operation risks are increased, and practicability is greatly reduced are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical instruments, and in particular relates to a locking structure of a closed cutter for open surgery. Background Art

[0002] A closed cutter for open surgery is a medical device made of metal or other rigid materials that assists surgeons in closing and cutting tissue during open surgery. It helps surgeons precisely sever tissue and suture wounds, reducing the risk of postoperative complications. It also serves as an auxiliary tool for surgical instruments, helping surgeons better control and operate the procedure. Open closed cutters are widely used in a variety of surgical procedures, including orthopedic, gastrointestinal, and cardiovascular surgeries.

[0003] When using existing open surgical closed cutters, the blade is moved to achieve cutting by rotating the wrench. However, during use, it is inevitable that the wrench will be accidentally touched, causing the blade to move and unable to lock the blade, which will lead to the cutting of human tissue, increasing the risk of surgery and greatly reducing practicality. Summary of the Invention

[0004] The utility model provides a locking structure for an open surgical closed cutter, which aims to solve the problem that during use of the existing open surgical closed cutter, the blade may inevitably be accidentally touched by a wrench, causing the blade to move and failing to lock the blade, thereby causing human tissue to be cut, increasing surgical risks and greatly reducing practicality.

[0005] An embodiment of the present utility model provides a locking structure of an open surgical closed cutter, comprising a handle one and a handle two, wherein the forceps heads of the handle one and the handle two are rotatably connected to each other via a knob, a guide block is fixedly connected to the interior of the handle one, a blade is movably mounted on the interior of the handle one and on one side of the guide block, a locking member is mounted on the interior of the handle one and on the other side of the guide block, the locking member is used to lock and position the blade, and a driving member is mounted on the side of the blade.

[0006] By adopting the above technical solution, before handle one and handle two are closed, the locking part locks the blade to prevent the blade from leaking out due to accidental operation when the forceps head is not closed during the operation, thereby avoiding surgical risks. When handle one and handle two are closed, the locking part is squeezed and elastically deformed. At this moment, the locking part slowly releases the lock on the blade, and then the driving part is rotated to push the blade to move and cut. It is very convenient to use and its practicality is greatly improved.

[0007] Furthermore, the blade and the guide block are connected by a sliding connection structure, which includes a slide reserved on the guide block and two slide rods fixed on the tail of the blade. The slide is long and narrow, and the slide runs through the tail of the blade. The slide rod is slidably installed in the slide.

[0008] By adopting the above technical solution, the movement of the blade can be guided by the arrangement of the slide rod and the slideway, ensuring that the blade moves in a fixed direction, thereby ensuring the safety of surgical cutting.

[0009] Furthermore, the locking member is made of elastic material.

[0010] By adopting the above technical solution, it is ensured that the locking part can produce elastic deformation after being squeezed. At the same time, when the squeezing of the locking part is released, the locking part can recover, thereby facilitating the locking and release of the blade by the locking part.

[0011] Furthermore, the locking part includes a fixed block fixedly connected to the inside of handle 1, and the fixed block is fixedly connected to an L-shaped rod on one side close to the guide block. The fixed block and the L-shaped rod are an integrally formed structure, and the two walls of the L-shaped rod are respectively attached to the fixed block and a wall of handle 1. A locking mouth is reserved on the inner side of the bend of the L-shaped rod, and the locking mouth can engage with the sliding rod away from the fixed block.

[0012] By adopting the above technical solution, when handle one and handle two are closed, the L-shaped rod is squeezed and deformed, so that the locking mouth moves away from the engaged sliding rod, thereby canceling the locking of the blade, preventing the blade from leaking out due to accidental operation when the forceps head is not closed during the operation, and avoiding surgical risks.

[0013] Furthermore, the bending portion of the L-shaped rod is fixedly connected to the reinforcement rod.

[0014] By adopting the above technical solution, deformation of the bending part is prevented.

[0015] Furthermore, the driving member includes a wrench rotatably connected to the outside of handle one, the connection part of the wrench extends into the interior of handle one and is fixedly connected to a V-shaped frame, the side of the V-frame away from the wrench is rotatably connected to the guide block, and the two ends of the V-frame away from the wrench are rotatably connected to two push rods, and one end of the push rod away from the V-frame is rotatably connected to the end of the slide rod away from the slideway.

[0016] By adopting the above technical solution, when the locking part cancels the lock on the blade, the wrench is rotated, and the wrench drives the V-shaped frame to rotate. Under the cooperation of the slideway and the slide rod, the V-shaped frame drives the push rod to move, and then the push rod pushes the blade to move to achieve surgical cutting.

[0017] The beneficial effects of the utility model are:

[0018] The utility model locks the blade with a locking part before the first handle and the second handle are closed, so as to prevent the blade from leaking out due to accidental operation when the forceps heads are not closed during surgery, thereby avoiding surgical risks. When the first handle and the second handle are closed, the locking part is squeezed and elastically deformed. At this moment, the locking part slowly releases the lock on the blade, and then the driving part is rotated to push the blade to move and cut. The utility model is very convenient to use and its practicality is greatly improved.

[0019] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of a partial cross-sectional three-dimensional structure of an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the overall partial cross-section of an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the main structure of an embodiment of the utility model;

[0024] Figure numerals: 1. Handle 1; 2. Handle 2; 3. Knob; 4. Guide block; 5. Blade; 6. Locking member; 7. Driving member; 41. Slide; 51. Slide rod; 61. Fixed block; 62. L-shaped rod; 63. Locking mouth; 64. Reinforcement rod; 71. Wrench; 72. V-shaped frame; 73. Push rod. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the specific embodiments of the present invention. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Reference Figure 1-Figure 3The embodiment of the present invention proposes a locking structure of an open surgical closed cutter, including a handle 1 and a handle 2. The forceps heads of the handle 1 and the handle 2 are rotatably connected to each other by a knob 3. A guide block 4 is fixedly connected to the inside of the handle 1. A blade 5 is movably installed inside the handle 1 and on one side of the guide block 4. A locking member 6 is installed inside the handle 1 and on the other side of the guide block 4. The locking member 6 is used to lock and position the blade 5. A driving member 7 is installed on the side of the blade 5.

[0027] Before the handle 1 and the handle 2 are closed, the locking part 6 locks the blade 5 to prevent the blade 5 from leaking out due to accidental operation when the forceps head is not closed during the operation, thereby avoiding surgical risks. When the handle 1 and the handle 2 are closed, the locking part 6 is squeezed and elastically deformed. At this moment, the locking part 6 slowly releases the lock on the blade 5, and then the driving part 7 is rotated, and the driving part 7 pushes the blade 5 to move and cut. It is very convenient to use and its practicality is greatly improved.

[0028] Among them, the blade 5 is connected to the guide block 4 through a sliding connection structure, which includes a slide 41 reserved on the guide block 4 and two slide rods 51 fixed at the tail of the blade 5. The slide 41 is long and narrow, and the slide 41 passes through the tail of the blade 5. The slide rod 51 slides through and is installed in the slide 41.

[0029] By configuring the slide bar 51 and the slideway 41 , the movement of the blade 5 can be guided to ensure that the blade 5 moves in a fixed direction, thereby ensuring the safety of surgical cutting.

[0030] Among them, the locking part 6 is made of elastic material, and the locking part 6 includes a fixed block 61 fixedly connected to the inside of the handle 1. The fixed block 61 is fixedly connected to an L-shaped rod 62 on one side close to the guide block 4. The fixed block 61 and the L-shaped rod 62 are an integrally formed structure. The two walls of the L-shaped rod 62 are respectively attached to the fixed block 61 and a wall of the handle 1. A locking mouth 63 is reserved on the inner side of the bend of the L-shaped rod 62, and the locking mouth 63 can be engaged with the sliding rod 51 away from the fixed block 61.

[0031] When handle 1 and handle 2 2 are closed, the L-shaped rod 62 is squeezed and deformed, causing the locking mouth 63 to move away from the engaged sliding rod 51, thereby canceling the lock on the blade 5, preventing the blade 5 from leaking out due to accidental operation when the forceps head is not closed during the operation, avoiding surgical risks.

[0032] The bending part of the L-shaped rod 62 is fixedly connected to the reinforcing rod 64 to prevent the bending part from deformation.

[0033] Among them, the driving member 7 includes a wrench 71 rotatably connected to the outside of the handle 1, the connection part of the wrench 71 extends into the interior of the handle 1 and is fixedly connected to a V-shaped frame 72, the side of the V-shaped frame 72 away from the wrench 71 is rotatably connected to the guide block 4, and the two ends of the V-shaped frame 72 away from the wrench 71 are rotatably connected to two push rods 73, and the end of the push rod 73 away from the V-frame 72 is rotatably connected to the end of the slide bar 51 away from the slideway 41.

[0034] When the locking member 6 cancels the lock on the blade 5, the wrench 71 is rotated, and the wrench 71 drives the V-shaped frame 72 to rotate. Under the cooperation of the slide 41 and the slide rod 51, the V-shaped frame 72 drives the push rod 73 to move, and then the push rod 73 pushes the blade 5 to move to achieve surgical cutting.

[0035] The specific implementation method is as follows: when in use, the user holds handle 1 and handle 2 2, so that handle 1 and handle 2 2 are close to each other, and then the L-shaped rod 62 is squeezed by handle 2 2, the L-shaped rod 62 is deformed, and the locking mouth 63 moves away from the slide bar 51, thereby canceling the lock of the blade 5, and rotating the wrench 71, the wrench 71 drives the V-shaped frame 72 to rotate. Under the cooperation of the slide 41 and the slide bar 51, the V-shaped frame 72 drives the push rod 73 to move, and then the push rod 73 pushes the blade 5 to move, thereby realizing surgical cutting. It is very convenient to use and greatly improves safety.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A locking structure for a closed cutter for open surgery, characterized in that: The invention comprises a handle 1 (1) and a handle 2 (2), wherein the pliers heads of the handle 1 (1) and the handle 2 (2) are rotatably connected to each other via a knob (3), a guide block (4) is fixedly connected to the interior of the handle 1 (1), a blade (5) is movably installed on one side of the guide block (4) inside the handle 1 (1), a locking member (6) is installed on the other side of the guide block (4) inside the handle 1 (1), and the locking member (6) is used to lock and position the blade (5), and a driving member (7) is installed on the side of the blade (5).

2. The locking structure of a closed cutter for open surgery according to claim 1, characterized in that: The blade (5) and the guide block (4) are connected via a sliding connection structure, wherein the sliding connection structure comprises a slideway (41) reserved on the guide block (4) and two slide bars (51) fixed at the tail of the blade (5); the slideway (41) is in the shape of an elongated strip and is longitudinally passed through; the slide bar (51) passes through the tail of the blade (5); and the slide bar (51) is slidably passed through and installed in the slideway (41).

3. The locking structure of a closed cutter for open surgery according to claim 1, characterized in that: The locking member (6) is made of elastic material.

4. The locking structure of the closed cutter for open surgery according to claim 3, characterized in that: The locking member (6) comprises a fixed block (61) fixedly connected to the inside of the handle (1); the fixed block (61) is fixedly connected to an L-shaped rod (62) on one side close to the guide block (4); the fixed block (61) and the L-shaped rod (62) are an integrally formed structure; the two wall surfaces of the L-shaped rod (62) are respectively in contact with the fixed block (61) and a wall surface of the handle (1); a locking opening (63) is reserved on the inner side of the bending part of the L-shaped rod (62); the locking opening (63) can be engaged with the sliding rod (51) away from the fixed block (61).

5. The locking structure of the closed cutter for open surgery according to claim 4, characterized in that: The bending portion of the L-shaped rod (62) is fixedly connected to the reinforcing rod (64).

6. The locking structure of the closed cutter for open surgery according to claim 2, characterized in that: The driving member (7) includes a wrench (71) rotatably connected to the outside of the handle (1), the connection of the wrench (71) extends into the interior of the handle (1) and is fixedly connected to a V-shaped frame (72), the side of the V-shaped frame (72) away from the wrench (71) is rotatably connected to the guide block (4), the two ends of the V-shaped frame (72) away from the wrench (71) are rotatably connected to two push rods (73), and one end of the push rod (73) away from the V-shaped frame (72) is rotatably connected to the end of the slide rod (51) away from the slideway (41).

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