CN210673982U

CN210673982U - Catheter fixer for interventional radiotherapy

Info

Publication number: CN210673982U
Application number: CN201920870062.6U
Authority: CN
Inventors: 吕卓敏; 赵从羽; 翟丽娜
Original assignee: Fourth Military Medical University FMMU
Current assignee: Fourth Military Medical University FMMU
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-06-05
Anticipated expiration: 2029-06-11

Abstract

The utility model discloses a catheter fixer for intervene radiation therapy, which comprises a fixed base, the inside of fixing base is provided with first cavity and second cavity, and first cavity is located the level one side of second cavity, the top of fixing base is provided with first fixed plate and second fixed plate respectively with the position that first cavity and second cavity correspond, the inside of first cavity and second cavity all is provided with the gear wheel, and one side meshing of gear wheel is connected with pinion, two the top of gear wheel all meshes and is connected with the rack. The utility model discloses in, the motor drives the pinion rotatory, because pinion and gear wheel meshing connect, therefore the pinion can drive the gear wheel rotatory to control the drive rack, thereby can drive first fixed plate and second fixed plate reciprocal movement and be close to, realize fixing the pipe centre gripping, the location effect is better, and anti-skidding line increases the frictional force between pipe and the arc wall, and firm effect is better, avoids rocking.

Description

Catheter fixer for interventional radiotherapy

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a catheter fixing device for intervene radiation therapy.

Background

Interventional radiology is an edge subject which is rapidly developed in the late seventies of the twentieth century, and is a series of technologies for diagnosing and treating various diseases by using devices such as catheters, guide wires and the like under the guidance of medical imaging equipment, taking imaging diagnostics and clinical diagnostics as the basis and combining the principle of clinical therapeutics, namely: under the guidance of image medicine (X-ray, ultrasonic, CT and MRI), a specially-made catheter or instrument is inserted into a diseased part through a percutaneous puncture way or an original pore canal of a human body to carry out the discipline of diagnostic radiography and treatment or tissue collection, and cytological bacteriology and biochemical examination are carried out;

when the catheter is used in the operation, the catheter needs to be fixed, and the current devices specially used for fixing the catheter are fewer and have poor stability.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects in the prior art and providing a catheter fixer for interventional radiotherapy.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a catheter fixer for intervene radiation therapy, includes the fixing base, the inside of fixing base is provided with first cavity and second cavity, and first cavity is located horizontal one side of second cavity, the top of fixing base is provided with first fixed plate and second fixed plate respectively with the position that first cavity and second cavity correspond, the inside of first cavity and second cavity all is provided with the gear wheel, and one side meshing of gear wheel is connected with the pinion, two the top of gear wheel all meshes and is connected with the rack, the top of fixing base and the position that first cavity and second cavity correspond all have seted up along the horizontal direction and have run through the mouth, two the equal fixedly connected with connecting rod in top of rack, the first fixed plate all is provided with the arc wall with the one side that the surface of second fixed plate is relative.

As a further description of the above technical solution:

the top ends of the two connecting rods respectively penetrate through the two corresponding through holes to be fixedly connected with the bottoms of the first fixing plate and the second fixing plate.

As a further description of the above technical solution:

the utility model discloses a stabilizer bar, including first cavity and second cavity, the interior diapire of first cavity and second cavity is provided with the spout along the horizontal direction, and sliding connection has the slider in the spout, two fixedly connected with stabilizer bar between the top of slider difference first fixed plate and the bottom of second fixed plate, the stabilizer bar is located one side of connecting rod, the spout is located one side of gear wheel.

As a further description of the above technical solution:

a connecting rod is connected between the two racks and the corresponding stabilizer bars, a limiting rod is arranged on the central shaft of the big gear, and the bottom of the limiting rod is fixedly connected to the inner bottom wall of the fixing seat.

As a further description of the above technical solution:

the center of the fixing seat is provided with a pipeline port, and the pipeline port is positioned between the first cavity and the second cavity.

As a further description of the above technical solution:

the top of the fixed seat is provided with a motor at a position corresponding to the pinion, and the driving end of the motor is fixedly connected with the central shaft of the pinion.

As a further description of the above technical solution:

the two arc-shaped grooves are symmetrically arranged by taking the vertical central line of the fixing seat as an axis, and a plurality of anti-skidding lines are arranged on the outer surfaces of the arc-shaped grooves.

The utility model discloses following beneficial effect has:

1. this a catheter fixer for intervene radiation therapy, first fixed plate through setting up, the second fixed plate, the gear wheel, the pinion, including a motor, an end cap, a controller, and a cover plate, the rack, connecting rod and stabilizer bar, the pipe is put between first fixed plate and second fixed plate, and pass the pipeline mouth with the pipe, the motor drives the pinion rotatory, because pinion and gear engagement connect, consequently the pinion can drive the gear wheel rotatory, thereby it removes about the drive rack, thereby can drive first fixed plate and second fixed plate reciprocal movement and be close to, the realization is fixed the pipe centre gripping, the positioning effect is better.

2. This a catheter fixer for interveneeing radiation therapy, through the arc wall and the anti-skidding line that set up, laminating pipe that can be better is with its centre gripping, and the anti-skidding line increases the frictional force between pipe and the arc wall, and firm effect is better, avoids rocking.

Drawings

Fig. 1 is a schematic overall structure diagram of a catheter fixer for interventional radiotherapy according to the present invention;

FIG. 2 is a top view of a catheter holder for interventional radiotherapy in accordance with the present invention;

FIG. 3 is a side cross-sectional view of a catheter holder for interventional radiotherapy in accordance with the present invention;

fig. 4 is a schematic view of an anti-skid pattern of a catheter fixer for interventional radiotherapy according to the present invention.

Illustration of the drawings:

1. a fixed seat; 2. a first cavity; 3. a second cavity; 4. a first fixing plate; 5. a second fixing plate; 6. a bull gear; 7. a pinion gear; 8. a rack; 9. a connecting rod; 10. a stabilizer bar; 11. a chute; 12. a through opening; 13. a connecting rod; 14. a pipe orifice; 15. a limiting rod; 16. an arc-shaped slot; 17. a motor; 18. and (4) anti-skid lines.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: the utility model provides a catheter fixer for intervene radiation therapy, which comprises a fixed base 1, the inside of fixing base 1 is provided with first cavity 2 and second cavity 3, and first cavity 2 is located second cavity 3's level one side, the top of fixing base 1 is provided with first fixed plate 4 and second fixed plate 5 respectively with the position that first cavity 2 and second cavity 3 correspond, first cavity 2 all is provided with gear wheel 6 with the inside of second cavity 3, and one side meshing of gear wheel 6 is connected with pinion 7, the top of two gear wheels 6 all meshes and is connected with rack 8, the top of fixing base 2 and the position that first cavity 2 and second cavity 3 correspond all have been seted up along the horizontal direction and have been run through mouthful 12, the equal fixedly connected with connecting rod 9 in top of two rack 8, one side that first fixed plate 4 and second fixed plate 5's surface is relative all is provided with arc wall 16.

The top ends of the two connecting rods 9 respectively penetrate through the two corresponding through holes 12 to be fixedly connected with the bottoms of the first fixing plate 4 and the second fixing plate 5, and the rack 8 is connected with the first fixing plate 4 and the second fixing plate 5 through the connecting rods 9, so that the rack 8 can drive the first fixing plate 4 and the second fixing plate 5 to move when moving; the inner bottom walls of the first cavity 2 and the second cavity 3 are provided with a sliding chute 11 along the horizontal direction, the sliding chute 11 is connected with a sliding block in a sliding manner, the tops of the two sliding blocks are respectively fixedly connected with a stabilizer bar 10 between the bottoms of the first fixing plate 4 and the second fixing plate 5, the stabilizer bar 10 is positioned on one side of the connecting rod 9, the stabilizer bar 10 slides in the sliding chute 11 through the sliding block, and has a further limiting effect on the first fixing plate 4 and the second fixing plate 5, so that the first fixing plate 4 or the second fixing plate 5 can move horizontally more stably, and the sliding chute 11 is positioned on one side of the large gear 6; a connecting rod 13 is connected between the two racks 8 and the corresponding stabilizer bars 10, the racks 8 and the stabilizer bars 10 are connected through the connecting rod 13, a limiting rod 15 is sleeved on the center of the large gear 6 in a shaft, the bottom of the limiting rod 15 is fixedly connected to the inner bottom wall of the fixing seat 1, and the large gear 6 is limited; a pipeline port 14 is formed in the center of the fixed seat 1, and the pipeline port 14 is positioned between the first cavity 2 and the second cavity 3, so that a guide pipe can penetrate through the fixed seat 1; a motor 17 is arranged at the position, corresponding to the pinion 7, of the top of the fixed seat 1, the driving end of the motor 17 is fixedly connected with the central shaft of the pinion 7, and the motor 17 can drive the pinion 7 to rotate so as to drive the large gear 6 to rotate and drive the rack 8 to move; two arc wall 16 use the perpendicular central line of fixing base 1 to set up as axisymmetric, and the surface of arc wall 16 is provided with many anti-skidding lines 18, increases the frictional force between arc wall 16 and the pipe, and the centre gripping is more firm.

The working principle is as follows: when the catheter fixer for interventional radiotherapy is used, when in use, a catheter is placed in the arc-shaped groove 16 between the first fixing plate 4 and the second fixing plate 5 and passes through the pipeline port 14, the motor 17 is connected with an external power supply, the two motors 17 are set to rotate in opposite directions and can drive the two pinions 7 to rotate in opposite directions, so as to drive the large gear 6 to rotate, so as to drive the rack 8 to move relatively, because the first fixing plate 4 and the second fixing plate 5 are limited by the stabilizing rod 10, the sliding groove 11 and the sliding block, the rack 8 can drive the first fixing plate 4 and the second fixing plate 5 to move close to each other, so as to clamp and fix the catheter, because the anti-sliding grains 18 are arranged in the arc-shaped groove 16, the friction force between the catheter and the catheter can be increased, the clamping effect is better and more stable, and the two motors 17 rotate reversely again, the two pinions 7 can be driven to rotate, and the driving rack 8 moves towards the opposite direction, so that the first fixing plate 4 and the second fixing plate 5 move towards the side far away from the catheter, and the catheter is not clamped for taking out.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A catheter fixator for interventional radiotherapy comprises a fixed seat (1), and is characterized in that: a first cavity (2) and a second cavity (3) are arranged in the fixing seat (1), the first cavity (2) is positioned on one horizontal side of the second cavity (3), a first fixing plate (4) and a second fixing plate (5) are respectively arranged at positions, corresponding to the first cavity (2) and the second cavity (3), of the top of the fixing seat (1), large gears (6) are respectively arranged in the first cavity (2) and the second cavity (3), a small gear (7) is meshed and connected with one side of each large gear (6), racks (8) are meshed and connected with the tops of the two large gears (6), through holes (12) are respectively formed in positions, corresponding to the first cavity (2) and the second cavity (3), of the top of the fixing seat (1) in the horizontal direction, connecting rods (9) are fixedly connected with the tops of the two racks (8), and arc-shaped grooves (16) are formed in the opposite sides of the outer surfaces of the first fixing plate (4) and the second fixing plate (5).

2. A catheter holder for interventional radiology treatment according to claim 1, wherein: the top ends of the two connecting rods (9) respectively penetrate through the two corresponding through holes (12) to be fixedly connected with the bottoms of the first fixing plate (4) and the second fixing plate (5).

3. A catheter holder for interventional radiology treatment according to claim 1, wherein: the inner bottom wall of the first cavity (2) and the second cavity (3) is provided with a sliding groove (11) along the horizontal direction, a sliding block is connected in the sliding groove (11), the top of the sliding block is fixedly connected with a stabilizer bar (10) between the bottoms of a first fixing plate (4) and a second fixing plate (5), the stabilizer bar (10) is located on one side of a connecting rod (9), and the sliding groove (11) is located on one side of a large gear (6).

4. A catheter holder for interventional radiology treatment according to claim 1 or 3, wherein: two be connected with between rack (8) and its stabilizer bar (10) that corresponds and link pole (13), the central axle sleeve of gear wheel (6) is equipped with gag lever post (15), and the bottom fixed connection of gag lever post (15) is at the interior diapire of fixing base (1).

5. A catheter holder for interventional radiology treatment according to claim 1, wherein: the center of the fixed seat (1) is provided with a pipeline port (14), and the pipeline port (14) is positioned between the first cavity (2) and the second cavity (3).

6. A catheter holder for interventional radiology treatment according to claim 1, wherein: the top of the fixed seat (1) is provided with a motor (17) at a position corresponding to the pinion (7), and the driving end of the motor (17) is fixedly connected with the central shaft of the pinion (7).

7. A catheter holder for interventional radiology treatment according to claim 1, wherein: the two arc-shaped grooves (16) are arranged in an axisymmetric manner by taking the vertical center line of the fixed seat (1) as an axis, and a plurality of anti-skidding lines (18) are arranged on the outer surfaces of the arc-shaped grooves (16).