CN216222487U - Peritoneal dialysis catheter guide mirror - Google Patents

Abstract

The utility model provides a peritoneal dialysis catheter guide mirror which comprises a guide tube body and a camera shooting assembly, wherein a visual channel used for accommodating the camera shooting assembly is arranged in the guide tube body, the visual channel extends from a near end to a far end, at least part of the front end of the visual channel is a transparent part to form an observation window, so that the front end of the camera shooting assembly reaches the observation window to obtain the internal environment where the head end of the guide mirror is located, the damage to organs in a peritoneal cavity by blind insertion is avoided, the guide tube is a hard tube, and at least part of the guide tube is constructed into a bending section with a variable shape.

Description

Peritoneal dialysis catheter guide mirror

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a peritoneal dialysis catheter placement guide mirror.

Background

Continuous Ambulatory Peritoneal Dialysis (CAPD) has been widely used in patients with end-stage renal failure for the past 30 years as an effective alternative to end-stage renal disease (ESRD). Peritoneal dialysis treatment can be started smoothly depending on a successful peritoneal dialysis catheterization, and as the peritoneal dialysis treatment technology in China is increasingly widely concerned and applied, the peritoneal dialysis catheter implantation becomes an important skill which must be mastered by special kidney doctors in competition.

The peritoneal dialysis catheterization method has the following three main operation modes: namely percutaneous puncture peritoneal dialysis catheterization, laparoscopic peritoneal dialysis catheterization and surgical open-method peritoneal dialysis catheterization. The percutaneous puncture method is generally used for the implantation of an acute peritoneal dialysis catheter, but because of blind insertion, the risk of damaging abdominal organs is high and the position of the catheter is not easy to control; the laparoscopic peritoneal dialysis catheter placement technology is visual and accurate and has small damage, but needs expensive equipment and specially trained personnel, and is not easy to widely popularize in China at present; therefore, the peritoneal dialysis catheter placement method of the open surgery is the most commonly used peritoneal dialysis catheter placement method at present, and the surgical method has the advantages that the operation is performed under the direct vision, the risk of injury and bleeding of the anatomical structure is clear, and the dialysis catheter can be placed in the position. The key to the surgical procedure is ensuring that the dialysis catheter is placed in the correct position in the patient's body which would otherwise cause the catheter to become dislodged resulting in poor drainage of the peritoneal dialysis solution and failure to perform dialysis.

At present, in the conventional surgery open peritoneal catheterization, when a peritoneal dialysis catheter is placed into an abdominal cavity, a metal guide wire is conventionally inserted into the peritoneal dialysis catheter (when the guide wire is placed, about 2.0cm of a distal end is reserved so as to prevent the tail end of the metal guide wire from damaging abdominal organs), so as to assist the dialysis catheter to move from an operation opening to a bladder-rectum fossa (female is a uterine-rectum fossa). During the insertion process, the peritoneal dialysis catheter is slowly inserted downwards along the abdominal wall to be inserted into the patient for 2.0-3.0cm backwards when the patient feels urination or resistance, and then the peritoneal dialysis catheter is inserted obliquely downwards to have a falling empty feeling, so that the patient is asked to have self-feeling, if the patient feels that the perineum part has a drop feeling or a defecation feeling, the position of the inserted peritoneal dialysis catheter is proper, and if the patient feels that the perineum part has obvious pain, the peritoneal dialysis catheter is inserted too deeply and can slowly withdraw for 0.5-1.0cm, so that the perineum part has no obvious discomfort. If resistance is encountered during placement in the dialysis tubing, which may be omentum wrapping or the dialysis tubing contacting the haptics, the catheter should be withdrawn from the housing and replaced at a different angle. At present, the visible peritoneal dialysis catheter tube placing operation is expensive, and recently, the cases that a nephroscope replaces a laparoscope to be used as a visible guide peritoneal dialysis catheter tube placing operation are reported, and the risk of damage caused by expensive equipment and porous peritoneal puncture is existed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides the peritoneal dialysis catheter guide mirror which is convenient to use and avoids the damage of organs in an abdominal cavity by blind insertion.

In order to achieve the purpose, the utility model adopts the following technical scheme:

peritoneal dialysis puts a tub guide mirror, including the guide tube body and the subassembly of making a video recording, this internal visual passageway that is used for holding the subassembly of making a video recording that is equipped with of guide tube, visual passageway extends to distal end direction from the near-end, and visual passageway front end is partial at least for the transparent portion in order to form an observation window to supply the subassembly front end of making a video recording to reach the observation window and obtain the internal environment everywhere of guide mirror body head end, this guide tube body is the hard tube, and its at least part is constructed into the section of bending of variable shape.

Preferably, the guiding mirror body also defines a cleaning channel for cleaning the outer wall of the observation window.

Preferably, the observation window is arranged in a sealing way.

Preferably, the cleaning channel extends from the proximal end to the distal end and extends out of the front end of the guiding mirror body to form an irrigation opening facing the observation window.

Preferably, at least part of the outer wall of the observation window extends radially to form a protruding part, and the protruding part is arranged opposite to the flushing port.

Preferably, the camera assembly comprises a camera and an LED lamp, and the near end of the camera assembly is connected with a display screen.

Preferably, the cross section of the guide tube body is 2mm in diameter.

The utility model changes the metal guide wire inner core in the traditional peritoneal dialysis catheter placement operation into a visual guide mirror, the far end is provided with an observation window, so that an environment image of the place where the far end arrives can be obtained when a camera shooting assembly in the guide tube arranged in a lens sleeve reaches the observation window, the utility model can be used like a laparoscopic catheter placement in the operation process, an operator can observe the visceral organ structure in the abdominal cavity in real time, and can easily guide the peritoneal dialysis catheter to a bladder rectal fossa (female is a uterine rectal fossa), thereby avoiding the invisible and hard-to-place of the original metal guide wire and the risk of injury of the visceral organ operation in the abdominal cavity, the body part of the guide mirror is a bending section with a variable shape, and the guide tube can be more favorably placed in the deformable state.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

Wherein, 1, the guide tube body; 2. a display screen; 3. a visual channel; 4. an observation window; 5. cleaning the channel; 6. flushing the opening; 7. a projection.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate positional relationships based on the orientations and positional relationships shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the method or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," "retained," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; the two elements can be directly connected or indirectly connected through an intermediate medium, and the two elements can be communicated with each other at the inner sections. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

As shown in fig. 1, an embodiment of the present invention provides a peritoneal dialysis catheter guide mirror, including a guide tube body and a camera assembly, wherein a visible channel 3 for accommodating the camera assembly is disposed in the guide tube body, the visible channel 3 extends from a proximal end to a distal end, and at least a part of a front end of the visible channel 3 is a transparent portion to form an observation window 4, so that the front end of the camera assembly reaches the observation window 4 to obtain an internal environment where a head end of the guide mirror body is located, the guide tube body is a rigid tube, and at least a part of the guide tube body is configured as a bending section with a variable shape; the metal guide wire inner core in the traditional peritoneal dialysis catheter placement operation is changed into a visible guide mirror, the observation window 4 is arranged at the far end, so that an environment image of the place where the far end arrives can be obtained when a camera shooting assembly in the guide tube body in the mirror sleeve 2 reaches the observation window 4, an operator can observe the visceral organ structure in the abdominal cavity in real time like a laparoscope catheter placement operation in the operation process, and can easily guide a peritoneal dialysis catheter to a bladder rectal fossa (female is the uterine rectal fossa), thereby avoiding the invisible of the original metal guide wire, difficulty in location and risks of visceral organ operation injury in the abdominal cavity; meanwhile, the body part of the guide mirror is a bending section with a variable shape, and the guide mirror is more favorable for the smooth placement of the guide tube in a deformable state.

In order to make the image of the camera module clearly appear at the observation window 4, in some specific embodiments, a cleaning channel 5 capable of cleaning the outer wall of the observation window 4 is further defined in the guiding mirror body 1, the cleaning channel 5 is externally connected with a cleaning joint, and the cleaning channel 5 is filled with water to clean the view line of the observation window 4, which is obscured by blood water, so as to ensure clean visual environment, please refer to fig. 1 specifically.

Further, the observation window 4 seal up and set up, avoid pollutant or cleaning solution to get into the passageway of making a video recording, influence visual environment.

Further, the cleaning channel 5 extends from the proximal end to the distal end and extends out of the front end of the guiding mirror body 1 to form a flushing port 6 facing the observation window 4, so that the observation window 4 can be effectively cleaned after the cleaning liquid is introduced.

Further, the radial extension of at least partial outer wall of observation window 4 forms a bulge 7, bulge 7 sets up with washing a mouthful 6 relatively, so set up, will follow the cleaning solution that washes out of washing a mouthful 6 and turn back and then wash complete observation window 4 through the blockking of bulge 7 inner wall, improve clean rate.

The camera shooting assembly comprises a camera and an LED lamp, and the near end of the camera shooting assembly is connected with a display screen 8.

Preferably, the diameter of the cross section of the guide tube body 1 is 2 mm.

When the endoscope is used, the guide tube body 1 is bent to a required angle, the camera shooting channel of the endoscope sleeve 2 is inserted, the endoscope is placed into the dialysis catheter, and at the moment, the position of the dialysis catheter can be observed through the image transmitted to the display screen 2 by the camera, and the injury to the tissues in the body is avoided. When the fuzzy camera of bloody water, the accessible is to clean joint water injection, and clean anterior segment observation window 4 keeps visual environment clear.

It should be noted that the above embodiments are merely representative examples of the present invention. Many variations of the utility model are possible. Any simple modification, equivalent change and modification of the above embodiments according to the spirit of the present invention should be considered to be within the protection scope of the present invention.

Claims (7)

1. Peritoneal dialysis puts a tub guide mirror, its characterized in that: the visual camera comprises a guide tube body (1) and a camera shooting assembly, wherein a visual channel (3) used for containing the camera shooting assembly is arranged in the guide tube body (1), the visual channel (3) extends from a near end to a far end, at least part of the front end of the visual channel (3) is a transparent part to form an observation window (4), so that the front end of the camera shooting assembly reaches the observation window (4) to obtain the internal environment where the head end of the guide tube body (1) is located, the guide tube body (1) is a hard tube, and at least part of the guide tube body is a bending section with a variable shape.

2. The pd catheterization apparatus of claim 1, wherein the body (1) further defines a cleaning channel (5) for cleaning the outer wall of the observation window (4).

3. The PD catheterization apparatus of claim 2, characterized in that the viewing window (4) is hermetically sealed.

4. The PD catheter introducer of claim 2, wherein the cleaning channel (5) extends from the proximal end to the distal end and extends beyond the front end of the introducer body (1) to form an irrigation port (6) facing the observation window (4).

5. The PD catheterization apparatus of claim 4, characterized in that the observation window (4) extends radially at least partially to form a protrusion (7), and the protrusion (7) is disposed opposite to the flushing port (6).

6. The peritoneal dialysis catheter introducer of claim 1, wherein the camera assembly comprises a camera and an LED lamp, and the proximal end of the camera assembly is connected with a display screen (2).

7. The PD catheterization endoscope of claim 1, wherein the cross-sectional diameter of the catheter body (1) is 2 mm.

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