CN217244327U

CN217244327U - Lithotripsy endoscope

Info

Publication number: CN217244327U
Application number: CN202220700073.1U
Authority: CN
Inventors: 郭振宇
Original assignee: Zhuhai Pusheng Medical Science & Technology Co ltd
Current assignee: Zhuhai Pusheng Medical Science & Technology Co ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-08-23
Anticipated expiration: 2032-03-28

Abstract

The utility model discloses a lithotripsy endoscope, which comprises an insertion tube and a lithotripsy device. The insertion tube is flexible and bendable, a through working channel is arranged in the insertion tube, and the tail end of the insertion tube is provided with a camera device. The stone crushing device is arranged at the tail end of the insertion pipe and comprises a driving motor and a stone crushing mechanism, a driving shaft of the driving motor is connected with an input end of the stone crushing mechanism, an output end of the stone crushing mechanism is connected with an impact rod, and the impact rod stretches out of the tail end of the insertion pipe in the reciprocating motion process. The lithotripsy mechanism is arranged on the endoscope, can be bent along with the endoscope, can enter the human body without a percutaneous wound, reduces the risk of wound infection, and has less harm to patients and higher safety.

Description

Lithotripsy endoscope

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a rubble endoscope.

Background

Urinary calculus is a general term for kidney, ureter and bladder calculus, and urinary calculus can cause urinary tract injury, obstruction and complicated infection, so that renal function is damaged, and great pain is brought to patients. At present, the international treatment method for urinary calculus is mainly divided into laser lithotripsy technology, air pressure ballistic or external shock wave stone technology, but the methods have respective defects: after the laser is used for carrying out operation stone breaking, the laser burns soft tissues at high temperature, so that the narrow of the lumen of the urinary tract is easily caused; in the extracorporeal shock wave lithotripsy, shock waves are generated by aiming at stones through an extracorporeal lithotripsy machine, and the stones in the body are crushed through multiple energy release, so that kidney tissue of a patient is easily damaged, and particularly when the lithotripsy times are increased and the energy is increased, the stones of the next patient are not easily discharged after being crushed; however, the air pressure ballistic lithotripsy cannot be bent, only a percutaneous kidney channel can be established, the wound is large, and the lithotripsy is difficult to be carried out by contacting stones in bent corners.

SUMMERY OF THE UTILITY MODEL

In order to overcome at least one technical problem of the prior art, the utility model provides a lithotriptic endoscope which can be bent and enter the body through the natural cavity for pneumatic ballistic lithotripsy.

The lithotripsy endoscope comprises an insertion tube and a lithotripsy device, wherein the insertion tube is flexible and bendable, a through working channel is arranged in the insertion tube, and a camera device is arranged at the tail end of the insertion tube. The rubble device sets up the end at the inserted tube, including driving motor and rubble mechanism, driving motor's drive shaft is connected with the input of rubble mechanism, the output of rubble mechanism is connected with the impact bar, the impact bar stretches out from the end of inserted tube in the reciprocating motion process.

The lithotripsy endoscope at least has the following beneficial effects: the stone breaking mechanism is arranged on the endoscope, can be bent along with the endoscope, can approach to urinary calculus through natural cavities such as urethra, ureter, renal calyx and the like, can reduce kidney tissue injury, and has less harm to patients and higher safety. The working channel can simultaneously carry out water injection or negative pressure suction, can discharge the calculus in time, and the calculus removing efficiency is high.

In some embodiments of the above lithotripsy endoscope, the lithotripsy mechanism includes a connecting rod connected with the driving motor, the other end of the connecting rod is connected with an impact rod, a limiting device is arranged outside the impact rod, the impact rod reciprocates under the action of the limiting device, the impact rod performs transmission to repeatedly hit the concretions to perform lithotripsy, the lithotripsy efficiency is high, and the damage is small.

In some embodiments of the above lithotripsy endoscope, the limiting device is a cylinder, a piston is arranged in the cylinder, the connecting rod and the impact rod are respectively connected to two sides of the piston, lithotripsy is performed by utilizing an air pressure trajectory, the impact force of lithotripsy is large, and the efficiency is higher.

In some embodiments of the above lithotriptic endoscope, the driving shaft of the driving motor is connected with a turntable, the end of the connecting rod is connected to the outer periphery of the turntable far away from the axis, the turntable and the connecting rod convert the rotation of the driving motor into the reciprocating motion of the impact rod, the structure is simple, the transmission efficiency is high, and the power of lithotriptic can be improved.

In some embodiments of the above lithotripsy endoscope, the outlet of the working channel is arranged on the side wall of the insertion tube, the lithotripsy device is located behind the working channel, and the lithotripsy device and the working channel are arranged in front of and behind to reasonably arrange the space position, so that the volume occupied by the lithotripsy device is reduced, and the effect of reducing the end volume of the endoscope is achieved.

In some embodiments of the above lithotripsy endoscope, the camera device is covered with a transparent protective cover to prevent the broken stone from scratching the camera device and avoid affecting the imaging quality.

In some embodiments of the above lithotriptic endoscope, the end of the insertion tube is provided with a sealing ring, the sealing ring is sleeved outside the impact rod, the sealing ring not only has a sealing and waterproof effect, but also has a buffering and damping effect, and the influence on the camera device is reduced.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. Obviously, the described figures are only some embodiments of the invention, not all embodiments, and other designs and figures can be obtained by those skilled in the art without inventive effort, based on these figures:

fig. 1 is a schematic structural view of a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second embodiment of the present invention.

Detailed Description

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 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

It should be noted that unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and include, for example, fixed or removable connections or integral connections; the connection can be mechanical connection or electrical connection; 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 as a specific case by those skilled in the art.

Referring to fig. 1 to 2, a lithotripsy endoscope comprises an insertion tube 1 and a lithotripsy device, wherein the front end of the insertion tube 1 is fixedly connected to a handle. The insertion tube 1 is flexible and bendable, a through working channel 2 is arranged in the insertion tube 1, and a camera device 3 is arranged at the tail end of the insertion tube 1. The rubble device sets up at the end of intubate 1, including driving motor 4 and rubble mechanism, driving motor 4's drive shaft is connected with the input of rubble mechanism, the output of rubble mechanism is connected with impact bar 9, impact bar 9 stretches out from the end of intubate 1 at reciprocating motion in-process.

The lithotripsy device is arranged at the tail end of the endoscope, the lithotripsy mechanism can be bent along with the endoscope, and can enter the human body without a percutaneous wound, so that the risk of wound infection is reduced, and the lithotripsy device is less harmful to a patient and safer. And can observe simultaneously during the rubble, can also let in through working channel 2 and get the stone basket for it is also convenient and fast more to get the stone.

The stone breaking mechanism comprises a connecting rod 6 connected with a driving motor 4, the other end of the connecting rod 6 is connected with an impact rod 9, a limiting device is arranged outside the impact rod 9, the impact rod 9 makes linear reciprocating motion under the action of the limiting device, the impact rod 9 repeatedly strikes stones to break, the stone breaking efficiency is high, and the damage is small.

The limiting device is a cylinder 7, a piston 8 is arranged in the cylinder 7, the connecting rod 6 and the impact rod 9 are respectively connected to two sides of the piston 8, air pressure trajectory is utilized to carry out stone breaking, impact force of the broken stone is large, and efficiency is higher.

The driving shaft of the driving motor 4 is connected with a rotating disc 5, the end part of the connecting rod 6 is hinged on the peripheral part of the rotating disc 5 far away from the shaft center, the axis of the connecting rod 6 in the first embodiment is vertical to the axis of the rotating disc 5, the driving motor 4 is vertical to the connecting rod 6, the connecting rod 6 and the axis of the rotating disc 5 form an included angle in the second embodiment, the end surface of the connecting rod 6 is hinged on the plane of the rotating disc 5, and the driving motor 4 is parallel to the axis of the impact rod 9. When the rotary disc 5 rotates, the tail end of the connecting rod 6 is driven to move, and the connecting point of the connecting rod 6 is deviated from the axle center of the rotary disc 5, so that the connecting rod 6 can generate displacement. The cylinder 7 limits the piston 8 to limit the connecting rod 6 to move back and forth, so that the impact rod 9 is driven to move back and forth, and the concretes can be impacted and crushed. The rotary table 5 and the connecting rod 6 convert the rotation of the driving motor 4 into the reciprocating motion of the impact rod 9, the structure is simple, the transmission efficiency is high, and the power of the crushed stone can be improved.

The outlet of the working channel 2 is arranged on the side wall of the insertion tube 1, the stone breaking device is positioned behind the working channel 2, and the front and back of the stone breaking device and the working channel 2 are provided with spaces capable of reasonably arranging the end part, so that the volume occupied by the stone breaking device is reduced, and the effect of reducing the volume of the end part of the endoscope is achieved.

In order to achieve a better imaging effect, the camera device 3 is covered with a transparent protective cover 10, so that the camera device 3 is prevented from being scratched by broken stones, and the imaging quality is prevented from being influenced. The terminal of insert tube 1 is provided with sealing

washer

11, 11 covers of sealing washer are established outside impact bar 9, not only play sealed waterproof effect, can also play buffering absorbing effect, reduce the influence to camera device 3. In order to facilitate installation, the stone breaking device is arranged in an installation clamping seat, the installation clamping seat is embedded into the tail end of the insertion pipe 1, a through hole extending out of the impact rod 9 is reserved on the installation clamping seat, and the sealing ring 11 is arranged in the through hole.

While the preferred embodiments of the present invention have been described in detail, it should be understood that the embodiments described are only a few embodiments of the present invention, and that various equivalent modifications or substitutions can be made by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A lithotripsy endoscope, comprising: comprises that

The device comprises an insertion tube (1), wherein the insertion tube (1) is flexible and bendable, a through working channel (2) is arranged in the insertion tube (1), and a camera device (3) is arranged at the tail end of the insertion tube (1);

the rubble device, rubble device set up the end at intubate (1), including driving motor (4) and rubble mechanism, the drive shaft of driving motor (4) is connected with the input of rubble mechanism, the output of rubble mechanism is connected with impact bar (9), impact bar (9) stretch out from the end of intubate (1) in the reciprocating motion process.

2. The lithotripsy endoscope of claim 1, wherein: the stone breaking mechanism comprises a connecting rod (6) connected with a driving motor (4), the other end of the connecting rod (6) is connected with an impact rod (9), a limiting device is arranged outside the impact rod (9), and the impact rod (9) reciprocates under the action of the limiting device.

3. The lithotripsy endoscope according to claim 2, characterized in that: the limiting device is a cylinder (7), a piston (8) is arranged in the cylinder (7), and the connecting rod (6) and the impact rod (9) are connected to two sides of the piston (8) respectively.

4. The lithotripsy endoscope according to claim 2, characterized in that: the driving shaft of the driving motor (4) is connected with a rotary table (5), and the end part of the connecting rod (6) is connected to the outer peripheral part of the rotary table (5) far away from the axis.

5. The lithotripsy endoscope according to claim 1, characterized in that: the outlet of the working channel (2) is arranged on the side wall of the insertion pipe (1), and the stone breaking device is positioned behind the working channel (2).

6. The lithotripsy endoscope according to claim 1, characterized in that: the camera device (3) is covered with a transparent protective cover (10).

7. The lithotripsy endoscope according to claim 1, characterized in that: the tail end of the insertion pipe (1) is provided with a sealing ring (11), and the sealing ring (11) is sleeved outside the impact rod (9).