CN219070422U

CN219070422U - Pathological material drawing endoscope

Info

Publication number: CN219070422U
Application number: CN202223264610.1U
Authority: CN
Inventors: 蒋汉文; 严珊珊; 万欢
Original assignee: Guangzhou Panyu Maternal And Child Health Hospital
Current assignee: Guangzhou Panyu Maternal And Child Health Hospital
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-05-26
Anticipated expiration: 2032-12-07

Abstract

The embodiment of the utility model discloses a pathological material taking endoscope, which comprises an insertion tube and a piston cylinder which is annularly arranged, wherein: the side surface of the tail part of the insertion tube is inserted with a gas tube in a penetrating way, one end of the gas tube is communicated with a negative pressure ball, and the other end of the gas tube extends to the head part of the insertion tube; the piston cylinder is arranged on the lens tube at the head of the insertion tube in a threaded manner, an annular piston is arranged in the piston cylinder, a sampling hole is formed in the side face of one end of the piston cylinder, an air hole communicated with one end of the air tube is formed in the lens tube, and the air hole is communicated with the interior of the piston cylinder. The piston cylinder and the sampling hole are adopted for sampling, the surface of the piston cylinder is smooth, and the damage to in-vivo tissues can not be caused; the sample is directly stored in the piston cylinder during sampling, the sample does not need to pass through the conveying pipe, and excessive sample does not need to be taken out, so that discomfort is not caused to a patient; the piston cylinder is convenient to detach, convenient to sterilize and disinfect, and capable of being continuously utilized.

Description

Pathological material drawing endoscope

Technical Field

The utility model relates to the technical field of endoscopes, in particular to a pathological material-taking endoscope.

Background

Endoscopes generally refer to medical instruments that enter the human body through various ducts to observe the internal condition of the body. The lesions that cannot be seen by X-rays can be seen with an endoscope, so that it is very useful for doctors. Such as by an endoscopist, to view ulcers or tumors in the stomach, whereby an optimal treatment regimen is established. Some endoscopes have therapeutic functions such as cystoscope, gastroscope, coliscope, bronchoscope, laparoscope, etc.

The endoscope can see pathological changes when in observation, but specific conditions also need to be detected by further sampling materials; in the prior art, the sampling needle capable of retracting is used for sampling, but on one hand, the sampling needle can possibly cause tissue injury in a body during operation, and the sampling needle is directly connected with the outside through the conveying pipe, so that more samples are required to be extracted, and meanwhile, because body fluid enters the conveying pipe, sterilization and disinfection are troublesome, a plurality of endoscope sampling needles and the conveying pipe are disposable, and continuous recycling cannot be realized.

Disclosure of Invention

In view of the above, the utility model provides a pathological sampling endoscope which is used for solving the problems that the existing endoscope sampling needle in the prior art is easy to damage in-vivo tissues during operation and a conveying pipe and the sampling needle cannot be continuously recycled.

A pathological material taking endoscope, comprising an insertion tube and a piston cylinder which is annularly arranged, wherein:

the side surface of the tail part of the insertion tube is penetrated and inserted with a gas tube, one end of the gas tube is communicated with a negative pressure ball, and the other end of the gas tube extends to the head part of the insertion tube;

the piston cylinder is arranged on the lens tube at the head of the insertion tube in a threaded manner, an annular piston is arranged in the piston cylinder, a sampling hole is formed in the side face of one end of the piston cylinder, an air hole communicated with one end of the air tube is formed in the lens tube, and the air hole is communicated with the interior of the piston cylinder.

Preferably, the piston cylinder comprises an outer cylinder and an inner cylinder which are integrally formed, a piston cavity is formed between the outer cylinder and the inner cylinder, and the sampling hole is communicated with the piston cavity.

Preferably, one end of the piston cavity is sealed and the other end is opened; and one end of the piston cavity which is open is sleeved on the lens tube.

Preferably, the lens tube is provided with an external thread, and the inner cylinder is provided with an internal thread matched with the external thread.

Preferably, a silica gel sealing ring is fixedly adhered to the inner side of the inner cylinder, and the silica gel sealing ring is sleeved on the lens tube.

Preferably, an integral stopper is provided on one surface of the piston.

Preferably, a retainer ring is disposed at one end of the lens tube, and a silica gel sealing pad is disposed between the retainer ring and the piston cylinder.

The implementation of the embodiment of the utility model has the following beneficial effects:

after the above-mentioned pathologic sampling endoscope is adopted,

1. sampling is carried out by adopting a piston cylinder and a sampling hole, the surface of the piston cylinder is smooth, and the damage to in-vivo tissues can not be caused;

2. when the endoscope is extracted, the sample is taken out from the piston cylinder, the sample does not need to pass through a conveying pipe, and excessive sample does not need to be taken out, so that discomfort is not caused to a patient;

3. when the sampling point is not reached, the piston in the piston cylinder blocks the sampling hole, other body fluid cannot enter the piston cylinder, when the sampling point is reached, the piston moves backwards through the negative pressure ball back suction, a sample is extracted, the suction force is small, and discomfort of a human body cannot be caused;

4. the piston cylinder is convenient to detach, convenient to sterilize and disinfect, and capable of being continuously utilized.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Wherein:

FIG. 1 is a schematic diagram of a pathological-sampling endoscope in one embodiment;

FIG. 2 is a schematic view of the structure of the head of an insertion tube according to one embodiment;

FIG. 3 is a schematic illustration of a split construction of a piston cartridge in one embodiment;

fig. 4 is a schematic view showing an internal cross-sectional structure of a piston cylinder in one embodiment.

Reference numerals: 1. an insertion tube; 101. a retainer ring; 2. an air pipe; 3. a negative pressure ball; 4. a piston cylinder; 401. an outer cylinder; 402. a sampling hole; 403. an inner cylinder; 404. an internal thread; 405. a silica gel sealing ring; 406. a piston chamber; 5. a silica gel sealing pad; 6. a piston; 601. a limit column; 7. a lens tube; 701. an external thread; 702. and (5) air holes.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In order to better understand the technical solutions of the present application, the following description will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings.

Example 1

As shown in fig. 1-4, a pathological material taking endoscope comprises an insertion tube 1 and a piston cylinder 4 which is annularly arranged, wherein an air tube 2 is inserted through the side surface of the tail part of the insertion tube 1, one end of the air tube 2 is communicated with a negative pressure ball 3, and the other end of the air tube 2 extends to the head part of the insertion tube 1; the piston cylinder 4 is arranged on the lens tube 7 at the head of the insertion tube 1 in a threaded manner, the annular piston 6 is arranged in the piston cylinder 4, the sampling hole 402 is formed in one end side surface of the piston cylinder 4, the lens tube 7 is provided with an air hole 702 communicated with one end of the air tube 2, and the air hole 702 is communicated with the interior of the piston cylinder 4.

In particular, as shown in fig. 4, the piston cylinder 4 includes an outer cylinder 401 and an inner cylinder 403 which are integrally formed, a piston chamber 406 is formed between the outer cylinder 401 and the inner cylinder 403, and the sampling hole 402 communicates with the piston chamber 406. It should be noted that, as shown in fig. 4, the left end of the inner cylinder 403 is retracted inward, that is, the left end of the inner cylinder 403 does not have a length extending from the left end of the outer cylinder 401, so that the air hole 702 is avoided (the inner cylinder 403 is prevented from pressing the air hole 702), so that the negative pressure ball 3 can smoothly perform when the piston cavity 406 is inflated or deflated.

As shown in fig. 4, the piston chamber 406 is closed at one end and open at one end; and an open end of the piston cavity 406 is sleeved on the lens tube 7. It should also be noted that the closed end, i.e., the right end in fig. 4, has an arcuate interior of the piston chamber 406, and that when the piston 6 moves to the right end of the interior of the piston chamber 406, a portion of the air remains in the arcuate position of the right end of the interior of the piston chamber 406, and that when drawn back, the remaining portion of the air can push the piston 6 to slide to the left.

As shown in fig. 3, the lens tube 7 is provided with an external thread 701, and the inside of the inner cylinder 403 is provided with an internal thread 404 that mates with the external thread 701. A silica gel sealing ring 405 is fixedly adhered to the inner side of the inner cylinder 403, and the silica gel sealing ring 405 is sleeved on the lens tube 7. The silicone sealing ring 405 further performs a sealing function to prevent the negative pressure ball from leaking gas during inflation or evacuation.

As shown in fig. 3, an integral stopper 601 is provided on one side surface of the piston 6. The function of the limit post 601 is to prevent the piston 6 from moving excessively to the left, coming out of one end of the inner cylinder 403.

Specifically, a retainer ring 101 is disposed at one end of the lens tube 7, and a silica gel sealing pad 5 is disposed between the retainer ring 101 and the piston cylinder 4. The silica gel sealing gasket 5 has the function of ensuring the sealing performance of the opening of the piston cylinder 4.

When the device is used, firstly, the negative pressure ball 3 is pressed, the piston 6 moves to the right end of the piston cylinder 4 under the action of positive pressure and blocks the sampling hole 402, then, after the insertion tube 1 is inserted into a designated position in a human body, the negative pressure ball 3 is loosened, and when the elasticity of the negative pressure ball 3 is restored to form negative pressure, samples (such as intestinal juice, gastric juice, intestinal mucosa liquid, gastric mucosa liquid and the like) are extracted; then the insertion tube 1 is taken out from the human body, the negative pressure ball 3 is extruded again, the sample in the piston cylinder 4 is taken out, and the material taking is completed.

To sum up: the piston cylinder 4 and the sampling hole 402 are adopted for sampling, the surface of the piston cylinder 4 is smooth, and no damage to in-vivo tissues is caused; when the endoscope is extracted, the sample is taken out from the piston cylinder 4, the sample does not need to pass through a conveying pipe, and excessive sample does not need to be taken out, so that discomfort is not caused to a patient; when the sampling point is not reached, the piston 6 in the piston cylinder 4 blocks the sampling hole 402, other body fluid cannot enter the piston cylinder 4, when the sampling point is reached, the piston 6 is pulled back through the negative pressure ball 3, a sample is extracted, the suction force is small, and human body discomfort cannot be caused; meanwhile, the piston cylinder 4 is convenient to detach, convenient to sterilize and disinfect, and capable of being continuously utilized.

It is apparent that the embodiments described above are only some embodiments of the present application, but not all embodiments, the preferred embodiments of the present application are given in the drawings, but not limiting the patent scope of the present application. This application may be embodied in many different forms, but rather, embodiments are provided in order to provide a more thorough understanding of the present disclosure. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing, or equivalents may be substituted for elements thereof. All equivalent structures made by the specification and the drawings of the application are directly or indirectly applied to other related technical fields, and are also within the protection scope of the application.

Claims

1. A pathologic sampling endoscope, comprising:

the air pipe (2) is inserted into the tail side surface of the insertion pipe (1) in a penetrating way, one end of the air pipe (2) is communicated with the negative pressure ball (3), and the other end of the air pipe (2) extends to the head of the insertion pipe (1);

the piston tube (4) that is annular setting, its screw thread is installed on lens tube (7) of insert tube (1) head, the internally mounted of piston tube (4) has annular piston (6), sampling hole (402) have been seted up to the one end side of piston tube (4), set up gas pocket (702) with trachea (2) one end intercommunication on lens tube (7), gas pocket (702) communicate with each other with the inside of piston tube (4).

2. The pathologic sampling endoscope of claim 1, wherein: the piston cylinder (4) comprises an outer cylinder (401) and an inner cylinder (403) which are integrally formed, a piston cavity (406) is formed between the outer cylinder (401) and the inner cylinder (403), and the sampling hole (402) is communicated with the piston cavity (406).

3. The pathologic sampling endoscope of claim 2, wherein: one end of the piston cavity (406) is sealed and the other end is open; and one open end of the piston cavity (406) is sleeved on the lens tube (7).

4. A pathologic sampling endoscope as claimed in claim 3, wherein: an external thread (701) is arranged on the lens tube (7), and an internal thread (404) matched with the external thread (701) is arranged inside the inner cylinder (403).

5. The pathologic sampling endoscope of claim 4, wherein: the inner side of the inner cylinder (403) is fixedly adhered with a silica gel sealing ring (405), and the silica gel sealing ring (405) is sleeved on the lens tube (7).

6. The pathologic sampling endoscope of claim 1, wherein: an integral limit post (601) is arranged on one side surface of the piston (6).

7. The pathologic sampling endoscope of claim 1, wherein: one end of the lens tube (7) is provided with a check ring (101), and a silica gel sealing gasket (5) is arranged between the check ring (101) and the piston cylinder (4).