Clamp head structure of clip applier

Abstract

The utility model discloses a clip applier head structure which comprises a clip applier head, the tail end of the clip applier head is connected with a clip applier main rod, the inner side of the tail end of the clip applier head is provided with a fixing slot, the front end of the clip applier main rod is provided with a mounting cavity, and the inner bottom of the mounting cavity is fixedly provided with a first guide rod. And the outer surface of the first guide rod is slidably connected with a fixed insertion cylinder, the fixed insertion cylinder is connected with the fixed insertion groove in a clamped mode, and a second guide rod is fixedly arranged at the inner bottom of the mounting cavity. Through the design, under the arrangement of a first guide rod, a second guide rod, a reset spring, a fixed insertion barrel, a pressing-down movable barrel and a connecting plate, the fixed insertion barrel and a fixed insertion groove can be clamped and separated through elastic extension and contraction of the reset spring, and therefore convenient disassembly and assembly operation of the clip applier head and the clip applier main rod is achieved; and the forceps heads with different sizes can be replaced, so that the forceps are suitable for operation in a child operation, and convenience can be brought to the operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of clip applier jaw head, especially to a kind of clip applier jaw head structure. BACKGROUND

[0002] Clip applier is a kind of surgical instrument that can hold and close ligature clip in laparoscopic surgery. The clip applier can be inserted into the human body from a small incision, and the surgical site inside the human body is observed by laparoscope, then the position of the jaw head of the clip applier is adjusted, the ligature clip is aligned with the blood vessel, and the jaw head is closed to close the ligature clip by the closing handle.

[0003] The current clip applier's embedded mouth is fixedly connected, the jaw head is not replaceable, and the size is relatively large. In children's surgery, the larger size is not conducive to operation and holding the hemostatic clip of children. In summary, the jaw head of the current clip applier is not replaceable, cannot hold different size of blood vessel clip, and the size of the current clip applier is too large, which is not suitable for operation in children's surgery. Therefore, the utility model provides a kind of clip applier jaw head structure. UTILITY MODEL CONTENT

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a kind of clip applier jaw head structure to solve the above problems.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: a kind of clip applier jaw head structure, including jaw head, the tail end of the jaw head is connected with clip applier main rod, the inner side of the tail end of the jaw head is provided with fixed slot, the front end of the clip applier main rod is provided with installation cavity, the inner bottom of the installation cavity is fixed with first guide rod, the outer surface of the first guide rod is slidably connected with fixed insertion cylinder, and the fixed insertion cylinder is connected with the fixed slot, the inner bottom of the installation cavity is fixed with second guide rod, the outer surface of the second guide rod is slidably connected with lower pressure movable cylinder, and the side of the lower pressure movable cylinder is fixed with connecting plate, and the connecting plate is fixedly connected with the fixed insertion cylinder, the bottom of the connecting plate is fixed with reset spring, and the other end of the reset spring is fixedly connected with the installation cavity, the outer surface of the installation cavity is provided with movable through-hole, and the movable through-hole is communicated with the installation cavity, and the lower pressure movable cylinder is slidably connected with the movable through-hole.

[0006] As a preferred technical scheme of the utility model, the tail end surface of the jaw head is provided with positioning slot, the inside of the positioning slot is slidably connected with positioning block, and the positioning block is fixedly connected with the clip applier main rod.

[0007] As a preferred technical scheme of the utility model, the cross section of the first guide rod and the inside cross section of the fixed insertion cylinder are adaptively arranged, and both are rectangularly arranged, the cross section of the second guide rod and the inside cross section of the lower pressure movable cylinder are adaptively arranged, and both are rectangularly arranged.

[0008] As a preferred technical scheme of the utility model, the inner side of the movable through hole is provided with a sealing ring, and the sealing ring is arranged in close contact with the outer surface of the lower pressing movable cylinder.

[0009] As a preferred technical scheme of the utility model, the inner diameter of the fixed insertion slot is adapted to the outer diameter of the fixed insertion cylinder, and the top end surface of the fixed insertion cylinder is provided with a rubber pad.

[0010] As a preferred technical scheme of the utility model, the tail end inner diameter of the forceps head is adapted to the front end diameter of the clip applier main rod, and the center part of the forceps head and the clip applier main rod are both provided with a through hole.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1. Through the setting of the first guide rod, the second guide rod, the reset spring, the fixed insertion cylinder, the lower pressing movable cylinder and the connecting plate, the fixed insertion cylinder and the fixed insertion slot can be clamped and separated through the elastic extension and contraction of the reset spring, so that the convenient disassembly and assembly of the forceps head and the clip applier main rod are realized. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a cross-sectional front view structural schematic diagram of the utility model;

[0014] Figure 2 It is an A place enlarged structure schematic diagram of the utility model; Figure 1

[0015] Figure 3 It is a B place enlarged structure schematic diagram of the utility model; Figure 1

[0016] Figure 4 It is a side view structural schematic diagram of the forceps head of the utility model.

[0017] 1, forceps head; 11, positioning insertion slot; 12, fixed insertion slot; 2, clip applier main rod; 21, positioning insertion block; 22, sealing ring; 3, installation chamber; 31, first guide rod; 32, second guide rod; 33, reset spring; 34, fixed insertion cylinder; 35, lower pressing movable cylinder; 36, connecting plate; 37, movable through hole. DETAILED DESCRIPTION

[0018] ​​To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this utility model. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0019] Example:

[0020] like Figures 1-4 As shown, this utility model provides a clamping pliers head structure, including a pliers head 1, a clamping pliers main rod 2 connected to the tail end of the pliers head 1, a fixing slot 12 opened on the inner side of the tail end of the pliers head 1, an installation chamber 3 opened at the front end of the clamping pliers main rod 2, a first guide rod 31 fixedly installed at the bottom of the installation chamber 3, a fixing insert 34 slidably connected to the outer surface of the first guide rod 31, and the fixing insert 34 engaging with the fixing slot 12, a second guide rod 32 fixedly installed at the bottom of the installation chamber 3, a downward pressing movable cylinder 35 slidably connected to the outer surface of the second guide rod 32, a connecting plate 36 fixedly installed on the side of the downward pressing movable cylinder 35, and the connecting plate 36 fixedly connected to the fixing insert 34, a return spring 33 fixedly installed at the bottom of the connecting plate 36, and the other end of the return spring 33 fixedly connected to the installation chamber 3, a movable through hole 37 opened on the outer surface of the installation chamber 3, and the movable through hole 37 communicating with the installation chamber 3, and the downward pressing movable cylinder 35 slidably connected to the movable through hole 37;

[0021] When the jaw 1 and the clip applier main rod 2 need to be disassembled and replaced, the lower movable cylinder 35 is pushed down, and the second guide rod 32 and the sliding limit of the lower movable cylinder 35 can make the lower movable cylinder 35 move down stably, and the connection of the connecting plate 36 can make the fixed plug-in cylinder 34 move synchronously. When the lower movable cylinder 35 moves down, the fixed plug-in cylinder 34 moves down, so that the fixed plug-in cylinder 34 is separated from the inside of the fixed insertion slot 12, so that the jaw 1 and the clip applier main rod 2 can be conveniently separated. Similarly, when the jaw 1 and the clip applier main rod 2 need to be installed, the lower movable cylinder 35 is extruded downward, the connecting plate 36 and the fixed plug-in cylinder 34 move downward, the connecting plate 36 compresses the reset spring 33, and the jaw 1 and the clip applier main rod 2 are inserted and set. When the jaw 1 and the clip applier main rod 2 are clamped and connected, the positioning of the positioning slot 11 and the positioning block 21 is more accurate. After the positioning slot 11 and the positioning block 21 are clamped and positioned, the lower movable cylinder 35 is loosened, the elastic extension of the reset spring 33 can make the reset spring 33 push the connecting plate 36 to move up, the fixed plug-in cylinder 34 and the lower movable cylinder 35 can be pushed up when the connecting plate 36 moves up, and the fixed plug-in cylinder 34 can be clamped and connected with the fixed insertion slot 12 after moving up. At this time, the jaw 1 and the clip applier main rod 2 are clamped and fixed. Through the design, the elastic extension and contraction of the reset spring 33 can make the fixed plug-in cylinder 34 and the fixed insertion slot 12 clamp and separate, so that the jaw 1 and the clip applier main rod 2 can be conveniently disassembled and assembled. This design can replace the jaw of different sizes, so it is suitable for operation in children's surgery, and it can bring convenience to the operation.

[0022] The tail end surface of the jaw 1 is provided with a positioning slot 11, the inside of the positioning slot 11 is slidably connected with a positioning block 21, and the positioning block 21 is fixedly connected with the clip applier main rod 2. Through the size positioning clamping connection of the positioning slot 11 and the positioning block 21, the jaw 1 and the clip applier main rod 2 can be positioned after being clamped and connected, so that the jaw 1 and the clip applier main rod 2 can be clamped and connected without position deviation, and the connection of the jaw 1 and the clip applier main rod 2 is more firm.

[0023] The cross section of the first guide rod 31 and the inside cross section of the fixed plug-in cylinder 34 are adaptively set, and are both rectangularly set. The cross section of the second guide rod 32 and the inside cross section of the lower movable cylinder 35 are adaptively set, and are both rectangularly set. Through the size adaptive setting of the first guide rod 31 and the fixed plug-in cylinder 34, the stability of the fixed plug-in cylinder 34 can be ensured when moving, and the size adaptive setting of the second guide rod 32 and the lower movable cylinder 35 can ensure the stability of the lower movable cylinder 35 when moving.

[0024] The inner side of the movable through hole 37 is provided with a sealing ring 22, and the sealing ring 22 is attached to the outer surface of the lower pressing movable cylinder 35. Through the setting of the sealing ring 22, the sealing ring 22 can seal the outer surface of the lower pressing movable cylinder 35, thereby avoiding external objects from entering the installation cavity 3 through the movable through hole 37, thereby achieving the protection effect.

[0025] The inner diameter of the fixed insertion slot 12 is matched with the outer diameter of the fixed insertion cylinder 34, and the top end face of the fixed insertion cylinder 34 is provided with a rubber pad. Through the size setting of the fixed insertion slot 12 and the fixed insertion cylinder 34, the stability of the clamping head 1 and the clip applier main rod 2 when being clamped and connected can be improved, and the rubber pad can be matched with the setting of the fixed insertion cylinder 34 and the fixed insertion slot 12, thereby avoiding the hard contact condition.

[0026] The tail end inner diameter of the clamping head 1 is matched with the front end diameter of the clip applier main rod 2, and the center part of the clamping head 1 and the clip applier main rod 2 is provided with a through hole. Through the size matching setting of the connection part of the clamping head 1 and the clip applier main rod 2, the clamping head 1 and the clip applier main rod 2 can be more closely and firmly connected, and the through hole can facilitate the traction rope to operate and pull the clamping head 1.

[0027] In the utility model, the above is only the embodiment of the application and is not used to limit the protection scope of the application. For those skilled in the art, the application can have various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the protection scope of the application. It should be noted that: similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0028] The above is only the specific embodiment of the application, but the protection scope of the application is not limited to this. Any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the application, which should be included in the protection scope of the application. Therefore, the protection scope of the application should be subject to the protection scope of the claims.

Claims

1. A clip applier jaw structure comprising a jaw (1), characterized in that: The tail end of the clamp head (1) is connected with a clip applier main rod (2), the inner side of the tail end of the clamp head (1) is provided with a fixed slot (12), the front end of the clip applier main rod (2) is provided with a mounting chamber (3), the inner bottom of the mounting chamber (3) is fixedly provided with a first guide rod (31), the outer surface of the first guide rod (31) is slidably connected with a fixed insertion cylinder (34), and the fixed insertion cylinder (34) is connected with the fixed slot (12), the inner bottom of the mounting chamber (3) is fixedly provided with a second guide rod (32), the outer surface of the second guide rod (32) is slidably connected with a lower pressing movable cylinder (35), the side of the lower pressing movable cylinder (35) is fixedly provided with a connecting plate (36), the connecting plate (36) is fixedly connected with the fixed insertion cylinder (34), the bottom of the connecting plate (36) is fixedly provided with a return spring (33), the other end of the return spring (33) is fixedly connected with the mounting chamber (3), the outer surface of the mounting chamber (3) is provided with a movable through hole (37), and the movable through hole (37) is in communication with the mounting chamber (3), and the lower pressing movable cylinder (35) is slidably connected with the movable through hole (37).

2. The jaw structure of claim 1 wherein: The tail end surface of the clamp head (1) is provided with a positioning slot (11), the inside of the positioning slot (11) is slidably connected with a positioning plug (21), and the positioning plug (21) is fixedly connected with the clip applier main rod (2).

3. The jaw structure of claim 1 wherein: The cross section of the first guide rod (31) and the inside cross section of the fixed insertion cylinder (34) are adaptively arranged, and are both rectangularly arranged, the cross section of the second guide rod (32) and the inside cross section of the lower pressing movable cylinder (35) are adaptively arranged, and are both rectangularly arranged.

4. The jaw structure of claim 1 wherein: The inner side of the movable through hole (37) is provided with a sealing ring (22), and the sealing ring (22) is arranged in close contact with the outer surface of the lower pressing movable cylinder (35).

5. The jaw structure of claim 1 wherein: The inside diameter of the fixed slot (12) and the outside diameter of the fixed insertion cylinder (34) are adaptively arranged, and the top end surface of the fixed insertion cylinder (34) is provided with a rubber pad.

6. The jaw structure of claim 1 wherein: The inner side diameter of the tail end of the clamp head (1) and the front end diameter of the clip applier main rod (2) are adaptively arranged, and the center part of the clamp head (1) and the clip applier main rod (2) are both provided with through holes.

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