A cannula piercer with a convenient angle fixation

Abstract

The utility model relates to the technical field of cannula puncture ware, and disclose a kind of cannula puncture ware of angle is fixed easily, including cannula puncture ware body and shell, the inner wall sliding connection of shell has piston plate, the top of shell is equipped with the adjusting mechanism of piston plate movement, the top fixed connection of shell has shell, the circumferential inner wall of shell is rotatably connected with rotating block, rotating block's circumferential outside fixed connection has rubber sleeve, and rubber sleeve and the inner wall of shell are contacted.The utility model not only through rotating block, rubber sleeve, slider, taper block, the cooperation of second threaded rod, to the angle of cannula puncture ware body rotation is fixed quickly, and by taper block is tied into rubber sleeve, to make cannula puncture ware body more stable fixed, also by being equipped with adjusting mechanism piston plate is moved upwards, to reduce the air pressure in shell interior, make shell tightly adsorbed on the skin of patient.

Description

Technical Field

[0001] This utility model relates to the field of cannula puncture device technology, and more specifically to a cannula puncture device that is convenient for fixing the angle. Background Technology

[0002] The cannula and needle of the single-use trocar are sterilely packaged and can be discarded after use, posing no risk of cross-infection to patients or medical staff.

[0003] However, when using existing cannula puncture devices, after determining the angle, medical staff need to hold the cannula puncture device with one hand while inserting it into the blood vessel lumen with the other hand. If the hand holding the cannula puncture device shakes accidentally, it will cause the cannula puncture device to deviate from its angle, resulting in unstable fixation of the cannula puncture device and affecting the treatment effect. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a cannula puncture device that is convenient for fixing the angle, so as to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a trocar puncture device for convenient angle fixing, comprising a trocar puncture device body and a shell, a piston plate slidably connected to the inner wall of the shell, an adjustment mechanism for moving the piston plate provided at the top of the shell, a housing fixedly connected to the top of the shell, a rotating block rotatably connected to the inner circumference of the housing, a rubber sleeve fixedly connected to the outer circumference of the rotating block and in contact with the inner wall of the housing, a support frame fixedly connected to the outer circumference of the housing, a slot provided on the outer wall of the housing and the slot being a through groove, a slider slidably connected in the slot, a second threaded rod rotatably connected to one side of the slider and threadedly connected to the support frame, multiple conical blocks fixedly connected to one side of the slider, and a slot provided at the top of the rotating block.

[0006] As a further embodiment of this utility model, the adjusting mechanism is a first threaded rod, which is rotatably connected to the top of the piston plate and threadedly connected to the outer casing.

[0007] As a further embodiment of this invention, a guide rod is fixedly connected to the top of the piston plate, and the guide rod is slidably connected to the outer shell.

[0008] As a further embodiment of this utility model, a first magnetic ring is fixedly connected to the bottom of the cannula puncture device body, and a second magnetic ring is fixedly connected to the top of the rotating block, and the second magnetic ring is attracted to the first magnetic ring.

[0009] As a further embodiment of this utility model, a knob is fixedly connected to the other end of both the first threaded rod and the second threaded rod, and multiple anti-slip textures are provided on the outer circumference of the knob.

[0010] As a further embodiment of this utility model, two fixing rings are fixedly connected to the inner circumference of the outer shell, and the two fixing rings are located on both sides of the inner wall of the outer shell.

[0011] As a further embodiment of this invention, both the inner and outer circumferential walls of the piston plate are fixedly connected with sealing rings.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model uses the combination of a rotating block, a rubber sleeve, a slider, a conical block, and a second threaded rod to quickly fix the rotation angle of the cannula puncture device body, and the conical block is inserted into the rubber sleeve to make the cannula puncture device body more stable.

[0014] 2. This utility model has an adjustment mechanism that drives the piston plate to move upward, thereby reducing the air pressure inside the outer shell and allowing the outer shell to adhere tightly to the patient's skin, thus quickly positioning and fixing the cannula puncture device.

[0015] 3. This utility model prevents the puncture tube of the cannula puncture device body from shaking or moving up and down in the sliding hole by attracting the second magnetic ring with the first magnetic ring, thereby making the cannula puncture device body more stable during use. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a cross-sectional view of the outer shell of this utility model.

[0018] Figure 3 This is a cross-sectional view of the shell structure of this utility model.

[0019] Figure 4 This is a cross-sectional view of the rotating block of this utility model.

[0020] The attached figures are labeled as follows: 1. Cannula puncture device body; 2. Shell; 3. Outer shell; 4. Support frame; 5. Guide rod; 6. First threaded rod; 7. Piston plate; 8. Fixing ring; 9. First magnetic ring; 10. Second magnetic ring; 11. Rotating block; 12. Rubber sleeve; 13. Sliding block; 14. Second threaded rod; 15. Groove; 16. Slot; 17. Conical block. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. This utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Reference Figures 1-4 This utility model provides a trocar insertion device with a convenient fixed angle, including a trocar insertion device body 1 and a shell 3. Two fixing rings 8 are bolted to the inner circumference of the shell 3, and the two fixing rings 8 are located on both sides of the inner wall of the shell 3. The fixing rings 8 increase the contact area of ​​the shell 3, making the shell 3 adhere to the skin more comfortably. A piston plate 7 is slidably connected to the inner wall of the shell 3. Sealing rings are bonded to both the inner and outer circumferences of the piston plate 7, increasing the sealing performance of the shell 3. The adjustment mechanism is a first threaded rod 6, which is rotatably connected to the piston plate. The piston plate 7 is located at the top of the outer shell 3, and the first threaded rod 6 is threadedly connected to the outer shell 3. Rotating the first threaded rod 6 clockwise moves the piston plate 7 upwards, reducing the air pressure inside the outer shell 3 and causing it to tightly adhere to the skin, thus quickly positioning the trocar. The top of the outer shell 3 is equipped with an adjustment mechanism that moves the piston plate 7. The adjustment mechanism is the first threaded rod 6, which is rotatably connected to the top of the piston plate 7 and threadedly connected to the outer shell 3. Rotating the first threaded rod 6 clockwise moves the piston plate 7 upwards, reducing the air pressure inside the outer shell 3 and causing it to tightly adhere to the skin, thereby quickly positioning the trocar. The air pressure inside shell 3 causes it to adhere tightly to the skin, thus quickly positioning the cannula trocar. Shell 2 is bolted to the top of shell 3. A rotating block 11 is rotatably connected to the inner circumference of shell 2. A rubber sleeve 12 is adhered to the outer circumference of rotating block 11, and the rubber sleeve 12 contacts the inner wall of shell 2. A support frame 4 is bolted to the outer circumference of shell 2. A slot 15 is formed on the outer wall of shell 2, and the slot 15 is a through slot. A slider 13 is slidably connected within the slot 15. A second threaded rod 14 is rotatably connected to one side of slider 13. 4 is threadedly connected to the support frame 4. Multiple conical blocks 17 are welded to one side of the slider 13. A slot 16 is provided on the top of the rotating block 11. Rotating the cannula puncture device body 1 to rotate it to a suitable position causes the rotating block 11 to rotate to the suitable position. Then, rotating the second threaded rod 14 clockwise causes the slider 13 to slide inward along the slot 15, so that the slider 13 contacts the rubber sleeve 12. At the same time, multiple conical blocks 17 are inserted into the rubber sleeve 12, thereby achieving rapid fixation of the rotation angle of the cannula puncture device body 1.

[0023] In this invention, a first magnetic ring 9 is bonded to the bottom of the cannula puncture device body 1, and a second magnetic ring 10 is bonded to the top of the rotating block 11. The second magnetic ring 10 is attracted to the first magnetic ring 9. By attracting the second magnetic ring 10 to the first magnetic ring 9, the puncture tube of the cannula puncture device body 1 is prevented from shaking in the sliding hole. A knob is welded to the other end of the first threaded rod 6 and the second threaded rod 14. Multiple anti-slip textures are provided on the outer circumference of the knob. The first threaded rod 6 and the second threaded rod 14 can be rotated more conveniently by turning the knob.

[0024] The working principle of this utility model is as follows: First, insert the cannula puncture device body 1 slightly into the slot 16, then rotate the cannula puncture device body 1 to a suitable position. The cannula puncture device body 1 drives the rotating block 11 to rotate to a suitable position. Then, rotate the second threaded rod 14 clockwise. The second threaded rod 14 drives the slider 13 to slide inward along the groove 15, so that the slider 13 contacts the rubber sleeve 12. At the same time, multiple conical blocks 17 will be inserted into the rubber sleeve 12, thereby realizing the rapid fixation of the rotation angle of the cannula puncture device body 1. Then, insert the cannula puncture device body 1 completely into the slot 16, and at the same time, the second magnetic ring 10 and the first magnetic ring 9 are attracted to each other.

[0025] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0026] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A trocar insertion device for convenient angle fixing, comprising a trocar insertion device body (1) and a shell (3), characterized in that: A piston plate (7) is slidably connected to the inner wall of the outer shell (3). An adjustment mechanism for moving the piston plate (7) is provided on the top of the outer shell (3). A shell (2) is fixedly connected to the top of the outer shell (3). A rotating block (11) is rotatably connected to the inner circumference of the shell (2). A rubber sleeve (12) is fixedly connected to the outer circumference of the rotating block (11), and the rubber sleeve (12) is in contact with the inner wall of the shell (2). A support frame (4) is fixedly connected to the outer circumference of the shell (2). A slot (15) is opened on the outer wall of the shell (2), and the slot (15) is a through slot. A slider (13) is slidably connected in the slot (15). A second threaded rod (14) is rotatably connected to one side of the slider (13), and the second threaded rod (14) is threadedly connected to the support frame (4). A plurality of conical blocks (17) are fixedly connected to one side of the slider (13). A slot (16) is opened on the top of the rotating block (11).

2. The trocar insertion device for convenient angle fixing according to claim 1, characterized in that: The adjustment mechanism is a first threaded rod (6), which is rotatably connected to the top of the piston plate (7) and threadedly connected to the outer shell (3).

3. The trocar insertion device for convenient angle fixing according to claim 2, characterized in that: The piston plate (7) is fixedly connected to the top of a guide rod (5), and the guide rod (5) is slidably connected to the outer shell (3).

4. The trocar insertion device for convenient angle fixing according to claim 1, characterized in that: The bottom of the cannula puncture device body (1) is fixedly connected to a first magnetic ring (9), and the top of the rotating block (11) is fixedly connected to a second magnetic ring (10), and the second magnetic ring (10) is attracted to the first magnetic ring (9).

5. A trocar insertion device for convenient angle fixing according to claim 2, characterized in that: The other end of the first threaded rod (6) and the second threaded rod (14) are both fixedly connected with knobs, and multiple anti-slip textures are provided on the outer circumference of the knobs.

6. The trocar insertion device for convenient angle fixing according to claim 3, characterized in that: Two fixing rings (8) are fixedly connected to the inner circumference of the outer shell (3), and the two fixing rings (8) are located on both sides of the inner wall of the outer shell (3).

7. The trocar insertion device for convenient angle fixing according to claim 3, characterized in that: The piston plate (7) has sealing rings fixedly connected to both its inner and outer circumferential walls.

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