Novel jaw opening mechanism of anastomat

Abstract

The jaw opening mechanism of the novel anastomat comprises a connecting piece, the connecting piece is connected with a nail anvil and a nail bin seat, the nail anvil and the nail bin seat are connected in the second direction and jointly connected to the connecting piece in the first direction, and the nail bin seat is provided with an elastic piece; the nail anvil is simple in structure and reasonable in design, when the nail anvil and the nail bin seat are not subjected to external force, the nail anvil and the nail bin seat are opened by a certain angle under the action of the elastic piece, when the nail anvil and the nail bin seat bear the external force, the first abutting position of the nail anvil and the second abutting position of the nail bin seat act on the first abutting portion and the second abutting portion of the elastic piece respectively, and therefore the nail anvil and the nail bin seat are fixed. And the nail anvil and the nail bin seat have a certain angle under the action of the elastic piece, so that a worker can conveniently clamp tissues and replace required components during use.

Description

Technical Field

[0001] The utility model relates to the technical field of electric staplers, in particular to a jaw opening mechanism of a novel stapler. Background Art

[0002] In the field of minimally invasive surgery, a laparoscopic cutting stapler is an important surgical instrument. It can enter through a small incision and enables doctors to quickly and conveniently cut and anastomose tissues as needed. With the development of technology, staplers are more accepted by doctors because of their labor-saving and convenient operation.

[0003] Deficiencies of the prior art:

[0004] Currently, in the use of laparoscopic cutting staplers, the jaw opening mechanism occupies a large space and has a small moving space, which is not convenient for workers to hold tissues and replace required components during use. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a jaw opening mechanism of a novel stapler to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A jaw opening mechanism of a novel stapler, including a connecting piece, the connecting piece is connected with an anvil and a cartridge seat, and the length direction and height direction of the cartridge seat are respectively set as the first direction and the second direction; the anvil and the cartridge seat are connected in the second direction and are commonly connected to the connecting piece in the first direction, and an elastic member is arranged on the cartridge seat.

[0007] Preferably, both ends of the elastic member are respectively connected to the anvil and the cartridge seat.

[0008] Preferably, a first abutting part is respectively arranged at one end of the elastic member close to the anvil, and a second abutting part is respectively arranged at one end of the elastic member far from the anvil; and a first abutting position corresponding to the first abutting part is arranged at the anvil, and a second abutting position corresponding to the second abutting part is arranged at the cartridge seat.

[0009] Preferably, the anvil and the cartridge seat are rotatably connected by a connecting component, and the cartridge seat moves in the second direction.

[0010] Preferably, the first direction and the second direction are perpendicular to each other.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The jaw opening mechanism of the novel stapler is provided with an anvil and a cartridge seat. At one end of the elastic member close to the anvil, there are respectively first abutting portions, and at the end of the elastic member far from the anvil, there are respectively second abutting portions. And at the anvil, there is a first abutting position corresponding to the first abutting portion, and at the cartridge seat, there is a second abutting position corresponding to the second abutting portion. When the anvil and the cartridge seat are not subjected to external forces, under the action of the elastic member, the anvil and the cartridge seat open at a certain angle. When the anvil and the cartridge seat are subjected to external forces, the first abutting position of the anvil and the second abutting position of the cartridge seat respectively act on the first abutting portion and the second abutting portion of the elastic member, so that the elastic member is compressed to realize jaw closure. And the anvil and the cartridge seat have a certain angle under the action of the elastic member, which is convenient for the operator to clamp tissues and replace the required components during use.

[0013] 2. The jaw opening mechanism of the novel stapler arranges the elastic member outside the cartridge seat, making the overall structure more compact, effectively shortening the length of the cartridge seat, and ensuring a larger movement space for the anvil and the cartridge seat inside the human abdominal cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 is a schematic diagram of a partial structure of the present invention;

[0016] Figure 3 is an enlarged schematic diagram of part A of the present invention;

[0017] Figure 4 is a schematic diagram of the overall structure of Embodiment 2 of the present invention;

[0018] Figure 5 is a schematic diagram of a partial structure of Embodiment 2 of the present invention;

[0019] In the figure: 110, connecting member; 120, anvil; 130, cartridge seat; x, first direction; y, second direction; 141, receiving cavity; 142, elastic member; 151, first abutting portion; 152, second abutting portion; 161, first abutting position; 162, second abutting position. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation to the present utility model.

[0022] In the description of this patent, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0023] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0024] Embodiment

[0025] Please refer to Figures 1-3 As shown, a technical solution of the jaw opening mechanism of a novel stapler provided by the present utility model includes a connecting member 110. The connecting member 110 is connected with an anvil 120 and a cartridge holder 130. The length direction and height direction of the cartridge holder 130 are respectively defined as the first direction x and the second direction y, and the first direction x and the second direction y are perpendicular to each other. The anvil 120 and the cartridge holder 130 are connected in the second direction y and are jointly connected to the connecting member 110 in the first direction x. The cartridge holder 130 is provided with an elastic member 142. The anvil 120 and the cartridge holder 130 are provided with a connecting assembly for rotational connection. The cartridge holder 130 can move in the second direction y. Through the action of the elastic member 142 on the anvil 120 and the cartridge holder 130, the closing of the jaws is achieved.

[0026] Further, a receiving cavity 141 is provided outside the staple cartridge seat 130, and the elastic member 142 is disposed in the receiving cavity 141. Disposing the elastic member 142 outside the staple cartridge seat 130 makes the overall structure more compact, effectively shortening the length of the staple cartridge seat 130, and ensuring that there is a larger movement space for the anvil 120 and the staple cartridge seat 130 inside the human abdominal cavity. Both ends of the elastic member 142 are respectively connected to the anvil 120 and the staple cartridge seat 130. A first abutting portion 151 is respectively provided at one end of the elastic member 142 close to the anvil 120, and a second abutting portion 152 is respectively provided at one end of the elastic member 142 away from the anvil 120. And a first abutting position 161 corresponding to the first abutting portion 151 is provided at the anvil 120, and a second abutting position 162 corresponding to the second abutting portion 152 is provided at the staple cartridge seat 130. When the anvil 120 and the staple cartridge seat 130 are not subjected to external forces, under the action of the elastic member 142, the anvil 120 and the staple cartridge seat 130 open at a certain angle. When the anvil 120 and the staple cartridge seat 130 are subjected to external forces, the first abutting position 161 of the anvil 120 and the second abutting position 162 of the staple cartridge seat 130 respectively act on the first abutting portion 151 and the second abutting portion 152 of the elastic member 142, so that the elastic member 142 is compressed, realizing the closing of the jaws, and the anvil 120 and the staple cartridge seat 130 have a certain angle under the action of the elastic member 142, which is convenient for the operator to clamp tissues and replace the required components during use.

[0027] The working principle of the present utility model is as follows:

[0028] When the jaw opening mechanism of a novel stapler in this embodiment is in use, when the anvil 120 and the staple cartridge seat 130 are not subjected to external forces, under the action of the elastic member 142, the anvil 120 and the staple cartridge seat 130 open at a certain angle. When the anvil 120 and the staple cartridge seat 130 are subjected to external forces, the first abutting position 161 of the anvil 120 and the second abutting position 162 of the staple cartridge seat 130 respectively act on the first abutting portion 151 and the second abutting portion 152 of the elastic member 142, so that the elastic member 142 is compressed, realizing the closing of the jaws, and the anvil 120 and the staple cartridge seat 130 have a certain angle under the action of the elastic member 142, which is convenient for the operator to clamp tissues and replace the required components during use.

[0029] Embodiment 2

[0030] Please refer to Figures 1-5As shown in the figure, the technical solution of the jaw opening mechanism of a new type of stapler provided by the present utility model includes a connecting member 110. The connecting member 110 is connected to an anvil 120 and a cartridge holder 130. The length direction, width direction, and height direction of the cartridge holder 130 are respectively defined as the first direction x, the second direction y, and the third direction z, and the first direction x, the second direction y, and the third direction z are perpendicular to each other in pairs. The anvil 120 and the cartridge holder 130 are connected in the third direction z and are jointly connected to the connecting member 110 in the first direction x. The cartridge holder 130 is provided with an elastic member 142. The anvil 120 and the cartridge holder 130 are provided with a connecting assembly for rotational connection. The cartridge holder 130 can move in the third direction z. By the action of the elastic member 142 on the anvil 120 and the cartridge holder 130, the closure of the jaws is realized.

[0031] Further, a receiving cavity 141 is provided outside the cartridge holder 130, and the elastic member 142 is arranged in the receiving cavity 141. Arranging the elastic member 142 outside the cartridge holder 130 makes the overall structure more compact, effectively shortens the length of the cartridge holder 130, and ensures that the anvil 120 and the cartridge holder 130 have a larger movement space inside the human abdominal cavity. The elastic member 142 is fixed to the cartridge holder 130. One end of the elastic member 142 close to the anvil 120 is provided with a first abutting portion 151, and a first abutting position 161 corresponding to the first abutting portion 151 is provided at the anvil 120. When the anvil 120 and the cartridge holder 130 are not subject to external forces, under the action of the elastic member 142, the anvil 120 and the cartridge holder 130 open at a certain angle. When the anvil 120 and the cartridge holder 130 are subjected to external forces, the first abutting position 161 of the anvil 120 acts on the first abutting portion 151 of the elastic member 142, causing the elastic member 142 to be compressed, realizing the closure of the jaws, and the anvil 120 and the cartridge holder 130 have a certain angle under the action of the elastic member 142, which is convenient for the operator to clamp tissues and replace the required components during use.

[0032] The working principle of the present utility model is as follows:

[0033] When the jaw opening mechanism of a new type of stapler in this embodiment is in use, when the anvil 120 and the cartridge holder 130 are not subject to external forces, under the action of the elastic member 142, the anvil 120 and the cartridge holder 130 open at a certain angle. When the anvil 120 and the cartridge holder 130 are subjected to external forces, the first abutting position 161 of the anvil 120 acts on the first abutting portion 151 of the elastic member 142, causing the elastic member 142 to be compressed, realizing the closure of the jaws, and the anvil 120 and the cartridge holder 130 have a certain angle under the action of the elastic member 142, which is convenient for the operator to clamp tissues and replace the required components during use.

[0034] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A novel jaw opening mechanism of an anastomosis device, comprising a connecting member (110), characterized in that: The connecting member (110) is connected to a nail anvil (120) and a nail magazine seat (130), and a first direction (x) and a second direction (y) are respectively arranged along the length direction and the height direction of the nail magazine seat (130); the nail anvil (120) and the nail magazine seat (130) are connected in the second direction (y) and are connected to the connecting member (110) in the first direction (x), and the nail magazine seat (130) is provided with an elastic member (142).

2. The jaw opening mechanism of the new stapler according to claim 1 is characterized in that: Two ends of the elastic member (142) are respectively connected to the nail anvil (120) and the nail magazine seat (130).

3. The jaw opening mechanism of the new stapler according to claim 2 is characterized in that: The elastic member (142) is provided with a first abutting portion (151) at one end close to the anvil (120), and a second abutting portion (152) at one end of the elastic member (142) away from the anvil (120); and a first abutting position (161) corresponding to the first abutting portion (151) is provided at the anvil (120), and a second abutting position (162) corresponding to the second abutting portion (152) is provided at the nail magazine seat (130).

4. The jaw opening mechanism of the new stapler according to claim 1 is characterized in that: The nail anvil (120) and the nail magazine seat (130) are rotatably connected by a connecting assembly, and the nail magazine seat (130) is movable in the second direction (y).

5. The jaw opening mechanism of the new stapler according to claim 1 is characterized in that: The first direction (x) and the second direction (y) are perpendicular to each other.

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