Puncture cannula for robot

Abstract

The puncture cannula for the robot comprises a cannula seat, and the end portion of the cannula seat is detachably connected with a cannula body. The sleeve seat comprises a sleeve seat body, the upper side of the sleeve seat body is provided with an air inlet connected with the air injection valve, one end of the sleeve seat body is provided with an internal thread structure, the inner wall face of the other end of the sleeve seat body is provided with two stages of stepped grooves, and the inner bottom face of each stage of stepped groove is provided with an annular sealing groove. Two stages of stepped convex pipes matched with the stepped grooves are arranged at the end part of the pipe body, and an annular sealing ring matched with the annular sealing groove is arranged at the end part of each stage of stepped convex pipe; a group of annularly distributed first T-shaped clamping grooves are formed in the outer wall surface of the other end of the sleeve seat body, matched second T-shaped clamping grooves are formed in the outer wall surface of the connecting end of the pipe body, I-shaped clamping blocks are embedded between the first T-shaped clamping grooves and the second T-shaped clamping grooves, and the I-shaped clamping blocks are respectively connected with the sleeve seat body and the pipe body through screws. According to the utility model, the sleeve seat and the pipe body can be flexibly detached.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sleeve, in particular to a puncture sleeve for robot. BACKGROUND

[0002] In minimally invasive laparoscopic surgery, the abdominal cavity of the human body needs to be insufflated, and sufficient insufflation opens the distance between the abdominal cavity and organs, and between organs, to provide a relatively wide field of view and surgical environment for the operator; wherein the puncture device composed of the gas injection valve and the sleeve is an important instrument in laparoscopic surgery, when the laparoscopic surgery starts, a part of the puncture device penetrates the skin and enters the body cavity, the other end is exposed outside the human body and is fixedly connected with the mounting part of the surgical robot, the surgical working channel is formed by the puncture device, and the surgical instruments and lighting equipment are introduced through the channel to complete the surgery. The existing puncture sleeve is mainly composed of a sleeve seat and a pipe body, the sleeve seat is connected with the surgical robot and the gas injection valve respectively, a part of the pipe body penetrates the skin and enters the body cavity, and the sleeve seat and the pipe body are generally connected by welding, which cannot be disassembled after welding, so that the pipe body with the corresponding length or angle cannot be selected according to the actual application scene. Therefore, the existing technology has the problem that the sleeve seat and the pipe body cannot be disassembled. SUMMARY

[0003] The utility model aims at providing a puncture sleeve for robot. The sleeve seat and the pipe body of the utility model can be disassembled flexibly.

[0004] The utility model discloses a puncture sleeve for robot, including the sleeve seat that links to each other with the gas injection valve, the pipe body is detachably connected to the sleeve seat end, the sleeve seat includes sleeve seat body, the upper side of sleeve seat body is equipped with the gas inlet that links to each other with the gas injection valve, one end of sleeve seat body is equipped with the internal thread structure, the inner wall surface of the other end of sleeve seat body is equipped with two levels distribution's step groove, the inner bottom surface of each step groove is equipped with annular sealing groove, the pipe body end is equipped with two levels and the step convex pipe of step groove cooperation, the end of each step convex pipe is equipped with the annular sealing ring that cooperates with annular sealing groove.

[0005] The outer wall surface of the other end of sleeve seat body is equipped with a group of annular distribution's first T type clamping groove, the outer wall surface of pipe body connecting end is equipped with the second T type clamping groove of cooperation, the first T type clamping groove and the second T type clamping groove are embedded with I -shaped type joint block, and I -shaped type joint block is connected with sleeve seat body and pipe body respectively through screw.

[0006] In the foregoing puncture sleeve for robot, the pipe body end is also equipped with annular distribution's positioning column, and the sleeve seat body end is equipped with the positioning groove of cooperation.

[0007] In the foregoing puncture sleeve for robot, the positioning groove is equipped with the suction magnet, and the positioning column is a magnetic column.

[0008] Compared with the prior art, the sleeve seat and the pipe body are detachably connected, so that the sleeve seat and the pipe body can be flexibly detached; specifically, the first T-shaped clamping groove is arranged on the outer wall surface of the sleeve seat body, the second T-shaped clamping groove is arranged on the outer wall surface of the pipe body, and the I-shaped clamping block is arranged between the two, so that the structure is simple, the disassembly and assembly are convenient, and the connection strength can be effectively ensured. At the same time, the two-stage stepped grooves with gradually increasing inner diameters are arranged in the sleeve seat body, and the two-stage stepped convex pipes at the end of the pipe body are matched, and the annular sealing grooves are arranged on the inner bottom surfaces of the stepped grooves, and the annular sealing rings are arranged on the end surfaces of the stepped convex pipes, so that multiple seals can be formed, the sealing performance is effectively improved under the premise of ensuring the connection strength. In summary, the sleeve seat and the pipe body can be flexibly detached. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 is a structural schematic diagram of the utility model;

[0010] Figure 2 is an exploded view of the utility model;

[0011] Figure 3 is a sectional view of the sleeve seat;

[0012] Figure 4 is a sectional view of the pipe body.

[0013] The marks in the drawings are: 1-pipe body, 2-sleeve seat, 3-positioning groove, 4-positioning column, 201-sleeve seat body, 202-air inlet, 205-stepped groove, 203-annular sealing groove, 101-stepped convex pipe, 102-annular sealing ring, 204-first T-shaped clamping groove, 103-second T-shaped clamping groove, 104-I-shaped clamping block. DETAILED DESCRIPTION

[0014] The utility model will be further described below in combination with the drawings and examples, but not as the basis for limiting the utility model.

[0015] Example. The puncture sleeve for robot is constituted as shown in Figures 1-4 The sleeve seat 2 connected with the gas injection valve is connected with the pipe body 1 at the end; the sleeve seat 2 comprises a sleeve seat body 201, the air inlet 202 connected with the gas injection valve is arranged on the upper side of the sleeve seat body 201, the inner thread structure is arranged on one end of the sleeve seat body 201, the stepped groove 205 is arranged on the inner wall surface of the other end of the sleeve seat body 201, the annular sealing groove 203 is arranged on the inner bottom surface of each stepped groove 205, the stepped convex pipe 101 is arranged on the end of the pipe body 1, and the annular sealing ring 102 is arranged on the end of each stepped convex pipe 101;

[0016] The outer wall surface of the other end of the sleeve seat body 201 is provided with a set of annularly distributed first T-shaped clamping grooves 204, the outer wall surface of the connecting end of the pipe body 1 is provided with second T-shaped clamping grooves 103 matched with the first T-shaped clamping grooves 204, and a I-shaped clamping block 104 is embedded between the first T-shaped clamping grooves 204 and the second T-shaped clamping grooves 103, and the I-shaped clamping block 104 is connected with the sleeve seat body 201 and the pipe body 1 through screws respectively.

[0017] The end of the pipe body 1 is also provided with annularly distributed positioning columns 4, and the end of the sleeve seat body 201 is provided with positioning grooves 3 matched with the positioning columns 4.

[0018] A magnetic iron is arranged in the positioning groove 3, and the positioning column 4 is a magnetic column.

[0019] The outer diameter of the stepped convex pipe is matched with the inner diameter of the corresponding stepped groove.

[0020] Threaded holes are arranged on the I-shaped clamping block, the first T-shaped clamping groove and the second T-shaped clamping groove, so that the screws can be easily screwed in, and the upper surface of the I-shaped clamping block is also provided with a flared portion, so that the surface of the screw is flush with the I-shaped clamping block.

[0021] The installation process of the utility model is as follows: the pipe opening of the gas injection valve is fixed at the gas inlet of the sleeve seat body, the stepped convex pipe at the end of the pipe body is inserted into the stepped groove of the sleeve seat body, the annular sealing ring is matched with the annular sealing groove, until the positioning column at the end of the pipe body is inserted into the positioning groove at the end of the sleeve seat body, the pipe body and the sleeve seat are connected and inserted, and multiple seals are formed; the first T-shaped groove is matched with the corresponding second T-shaped groove, then the I-shaped clamping block is inserted between the adjacent first T-shaped groove and the corresponding second T-shaped groove, the connection between the two is realized, finally the I-shaped clamping block is fixed on the sleeve seat and the pipe body through the screws. The internal thread structure at one end of the sleeve seat body is used for connecting and fixing with the surgical robot.

Claims

1. A puncture cannula for a robot, characterized by: The utility model relates to a gas injection valve sleeve seat, which comprises a sleeve seat (2) connected with a gas injection valve, and a pipe body (1) detachably connected with the end of the sleeve seat (2); the sleeve seat (2) comprises a sleeve seat body (201), the upper side of the sleeve seat body (201) is provided with a gas inlet (202) connected with the gas injection valve, one end of the sleeve seat body (201) is provided with an internal thread structure, the inner wall surface of the other end of the sleeve seat body (201) is provided with two-stage distributed stepped grooves (205), the inner bottom surface of each stepped groove (205) is provided with an annular sealing groove (203), the end of the pipe body (1) is provided with two-stage stepped convex tubes (101) matched with the stepped grooves (205), and the end of each stepped convex tube (101) is provided with an annular sealing ring (102) matched with the annular sealing groove (203); the outer wall surface of the other end of the sleeve seat body (201) is provided with a group of annularly distributed first T-shaped clamping grooves (204), the outer wall surface of the connecting end of the pipe body (1) is provided with matched second T-shaped clamping grooves (103), a I-shaped clamping block (104) is embedded between the first T-shaped clamping grooves (204) and the second T-shaped clamping grooves (103), and the I-shaped clamping block (104) is connected with the sleeve seat body (201) and the pipe body (1) through screws respectively.

2. The robotic puncture cannula of claim 1, wherein: the end of the pipe body (1) is also provided with annularly distributed positioning columns (4), and the end of the sleeve seat body (201) is provided with matched positioning grooves (3).

3. The robotic puncture cannula of claim 2, wherein: a magnetic suction iron is arranged in the positioning groove (3), and the positioning column (4) is a magnetic column.

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