Handheld visual gastrointestinal endoscope
Through the design of hand-held visual gastroenteroscope, the lens and light source of the gastroscopy canal guide the insertion of the nasal intestinal canal, solving the problems of long time and low success rate of nasal intestinal canal placement, achieving rapid and accurate nasal intestinal canal placement, reducing the Patient pain and medical costs.
Patent Information
- Application Number
- CN202323117418.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-20
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2033-11-20
AI Technical Summary
In the prior art, the nasointestinal canal arrangement method is long, the patient has poor tolerance and low success rate. In addition, the patient needs to be transferred to the gastroscopy chamber under the guidance of traditional gastroscopy, which has a high risk of metastasis, a long time-consuming and high cost.
A hand-held visual gastroenteroscope is designed, including a lever, imager, gastroscopy and nasal intestinal canal. The nasal intestinal canal is guided to accurately insert the nasal intestinal canal through the lens and light source of the gastroscopy, reducing the time and pain of the cannula and improving the success rate.
Through the use of hand-held visual gastroenteroscope, the nasointestinal canal insertion position is accurate, the time is short, and the success rate is high, which reduces patient pain, reduces medical costs, and avoids unnecessary examinations and surgical bed links.
Smart Images
Figure CN222323524U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to a handheld visual gastroenteroscopy. Background Art
[0002] In clinical nursing work, due to the patient's condition, a nasogastric tube needs to be placed for enteral nutrition to ensure the patient's nutritional supply and intestinal function, and reduce various complications caused by malnutrition.
[0003] Currently, there are two ways to place a nasoenteric tube: blind insertion of the tube and manual placement of the tube under ultrasound guidance. These two placement methods take a long time, have poor patient tolerance, require ultrasound or X-ray to determine the position, and have a low success rate. Traditional endoscopically guided nasoenteric tube placement requires the patient to be transferred to the endoscopy room for placement. Due to the high risk of transferring critically ill patients, long time consumption, the need for intestinal preparation, and high medical costs, the technical achievement rate is low. In addition, nasoenteric tubes can be placed under magnetic navigation guidance. Magnetic navigation equipment is expensive and most hospitals cannot afford it.
[0004] Therefore, in clinical nursing work, a convenient, fast, safe and easy-to-operate device is needed to improve the success rate of nasogastric tube placement. Utility Model Content
[0005] (I) The problem to be solved by the present invention is: how to design a fast, safe and easy-to-operate device to improve the success rate of nasogastric tube placement.
[0006] (II) Technical solution
[0007] A handheld visualized gastroenteroscopy comprises an operating rod, an imager, a gastroscope tube and a nasointestinal tube, wherein the operating rod is connected to one end of the gastroscope tube via a joint, and a connection interface is provided on the operating rod;
[0008] The imager is electrically connected to the operating rod via a connection interface;
[0009] The end of the gastroscope tube away from the joint is provided with a lens and a light source;
[0010] The gastroscope tube is used to be inserted into the nasoenteric tube.
[0011] According to an embodiment of the utility model, the operating rod includes a base and a top shell, the base and the top shell are fixedly connected, a mounting hole is opened on the side of the base, and the joint is installed in the mounting hole.
[0012] According to an embodiment of the utility model, a hole for the connection interface to pass through is formed on the upper surface of the top shell.
[0013] According to an embodiment of the present invention, the base and the top shell are fixed by screws.
[0014] According to an embodiment of the utility model, a serpentine tube is sleeved on the gastroscope tube.
[0015] According to an embodiment of the present utility model, the imager includes a display screen and a knob, the display screen is used to display the image captured by the lens, and the knob is used to control the direction of the lens.
[0016] According to one embodiment of the utility model, the nasoenteric tube includes a feeding port and an air injection tube, the feeding port is installed at the tail end of the nasoenteric tube, and an air inlet is opened on the side wall of the tail end of the nasoenteric tube, and one end of the air injection tube is connected to the air inlet.
[0017] According to an embodiment of the utility model, the head end of the nasoenteric tube is provided with an arc-shaped head, the arc-shaped head is provided with a through hole, and the through hole is connected with the tube cavity of the nasoenteric tube.
[0018] According to an embodiment of the utility model, a sealing plug is provided on the gas injection pipe, and the sealing plug is used to seal the opening of the gas injection pipe.
[0019] According to an embodiment of the utility model, a connection port for use with a connection interface is provided on the lower surface of the imager.
[0020] Beneficial effects of the utility model:
[0021] The utility model provides a handheld visualized gastroenteroscope, which comprises an operating rod, an imager, a gastroscope tube and a nasoenteroscope. The operating rod is connected to one end of the gastroscope tube via a joint, and a connecting interface is provided on the operating rod; the imager is electrically connected to the operating rod via the connecting interface; a lens and a light source are provided at one end of the gastroscope tube away from the joint; and the gastroscope tube is used to be inserted into the nasoenteroscope.
[0022] When in use, the operator holds the operating lever and then inserts the gastroscope tube into the inside of the nasoenteric tube so that the lens of the gastroscope tube is flush with the head of the nasoenteric tube. The nasoenteric tube is then inserted from the patient's nasal cavity and reaches the stomach. After the nasoenteric tube enters the stomach, air is injected into the stomach through the nasoenteric tube. Then, under the guidance of the lens at the front end of the gastroenteroscope, the nasoenteric tube is passed through the pylorus and then sent to the designated position, which is then confirmed by auscultation or B-ultrasound.
[0023] By using a handheld visual gastroenteroscope in conjunction with a nasoenterological tube, the insertion position of the nasoenterological tube is accurate, the insertion time is short, the accuracy is high, and the operation is easy, thereby increasing the success rate of nasoenterological tube placement, making enteral nutrition for critically ill patients easier to achieve, reducing the pain caused by intubation to the patient, avoiding the examination under radiation and the direct operating bed link, reducing the mental and physical pain caused by intubation to the patient, and reducing the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0025] Figure 1 Figures provided for embodiments of the present utility model;
[0026] Figure 2 A structural diagram of an operating rod and a gastroscope tube provided in an embodiment of the utility model;
[0027] Figure 3 A structural diagram of a nasogastric tube provided in an embodiment of the utility model.
[0028] Icons: 1-operating lever; 101-connector; 102-connection interface; 103-screw; 2-gastroscope tube; 3-imager; 301-display screen; 302-knob; 4-lens; 5-nasogastric tube; 501-arc head; 502-feeding port; 503-gas insufflation tube. DETAILED DESCRIPTION
[0029] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0030] like Figure 1-Figure 3 As shown, one embodiment of the utility model provides a handheld visualized gastroenteroscope, which includes an operating rod 1, an imager 3, a gastroscope tube 2, and a nasointestinal tube 5. The operating rod 1 is connected to one end of the gastroscope tube 2 through a joint 101, and a connection interface 102 is provided on the operating rod 1. The imager 3 is electrically connected to the operating rod 1 through the connection interface 102, and a lens 4 and a light source are provided at one end of the gastroscope tube 2 away from the joint 101, and the gastroscope tube 2 is used to be inserted into the nasointestinal tube 5.
[0031] When in use, the operator holds the operating lever 1, and then inserts the gastroscope tube 2 into the interior of the nasoenteric tube 5 so that the lens 4 of the gastroscope tube 2 is flush with the head of the nasoenteric tube 5, and then inserts the nasoenteric tube 5 from the patient's nasal cavity and reaches the stomach. After the nasoenteric tube 5 enters the stomach, about 200ml-300ml of air is injected into the stomach through the nasoenteric tube 5, and then under the guidance of the front end lens 4 of the gastroenteroscope, the nasoenteric tube 5 is continued to be sent to the designated position after passing through the pylorus, and then confirmed by auscultation or B-ultrasound.
[0032] By using a handheld visualized gastroenteroscope in conjunction with the nasoenteric tube 5, the insertion position of the nasoenteric tube 5 is accurate, the insertion time is short, the accuracy is high, the success rate of nasoenteric tube 5 placement is higher, enteral nutrition for critically ill patients is easier to achieve, the pain caused by intubation to the patient is reduced, the examination link under radiation and the link directly on the operating bed are avoided, the mental and physical pain caused by intubation to the patient is reduced, and the cost of use is reduced.
[0033] As a preferred embodiment, Figure 2 As shown, the operating lever 1 includes a base and a top shell. The top of the base is open, and a circuit board and various electrical components are installed in the base. The top shell covers and is installed on the top opening of the base. A mounting hole is opened on the side of the base. The connector 101 is electrically connected to the circuit board and is installed in the mounting hole.
[0034] Furthermore, the connection interface 102 is connected to the circuit board in the base, and a hole for the connection interface 102 to pass through is formed on the upper surface of the top shell.
[0035] Preferably, the upper surface of the base is provided with a plurality of screw holes, and the top shell is provided with a plurality of round holes corresponding to the screw holes one by one. When installing the top shell, the top shell is covered on the base so that the connection interface 102 on the base passes through the hole on the upper surface of the top shell, and the position of the top shell is appropriately adjusted so that the round holes on the top shell are aligned with the screw holes on the upper surface of the base, and then the base and the top shell are fixed with screws 103.
[0036] Optionally, the base and the top shell may be bonded together using strong glue.
[0037] As a preferred embodiment, one end of the gastroscope tube 2 is inserted into the connector 101 and electrically connected to the connector 101, and the other end of the gastroscope tube 2 is provided with a lens 4 and a light source, so that the image information captured by the lens 4 is transmitted to the data processor on the circuit board through the connector 101, and then the image information is transmitted to the imager 3 through the connection interface 102 for display.
[0038] It is important to know that the working principle of the gastroenteroscope is mainly to observe and examine the tissues and lesions inside the gastrointestinal tract through optical technology. The gastroenteroscope consists of a lens 4, a light source, an image transmission system and a control system. The working principle of the entire system is as follows:
[0039] The lens 4 of the gastrointestinal endoscope is composed of multiple lenses, which can be magnified, reduced and adjust the focusing distance, and the situation inside the gastrointestinal tract can be observed through the lens. The gastrointestinal endoscope light source is a light source used to illuminate the inside of the gastrointestinal tract. Light sources such as light bulbs or LEDs can be used to provide sufficient illumination and light quality. The image transmission system of the gastrointestinal endoscope includes a CCD sensor, which receives light reflected from the mucosa in the body cavity and converts the light into a digital signal, and transmits it to the imager 3 through the connection interface 102. The control system of the gastrointestinal endoscope includes buttons and knobs, which can be used to control the direction, zoom and focus of the lens 4.
[0040] Preferably, the imager 3 comprises a display screen 301 and a knob 302, wherein the display screen 301 is used to display the image captured by the lens 4, and the knob 302 is used to control the direction of the lens 4. A connection port for use with the connection interface 102 is provided on the lower surface of the imager 3.
[0041] Optionally, the diameter of the gastroscope tube 2 is ≤1.8 mm, and the entire gastroscope tube 2 is wrapped with a serpentine tube, which is made of waterproof and anti-corrosion materials to better protect the gastroscope tube 2. The lens 4 is located at the front end of the gastroscope tube 2.
[0042] Optionally, the length of the gastroscope tube 2 is 1.4 m, the gastroscope tube 2 is made of soft material, the gastroscope tube 2 is connected to the operating rod 1, the operating rod 1 is also made of waterproof material, and the operating rod 1 has a connection interface 102 connected to the imager 3.
[0043] As a preferred embodiment, Figure 3 As shown, the nasointestinal tube 5 includes a feeding port 502 and an air injection tube 503. The feeding port 502 is installed at the tail end of the nasointestinal tube 5, and an air inlet is opened on the side wall of the tail end of the nasointestinal tube 5. One end of the air injection tube 503 is connected to the air inlet.
[0044] The gastroscope tube 2 is inserted into the nasointestinal tube 5 from the feeding port 502 until the lens 4 extends into the tail end of the nasointestinal tube 5 .
[0045] Optionally, the feeding port 502 is funnel-shaped, so that it is easier to inject the nutrient solution into the nasointestinal tube 5 without the problem of difficulty in injecting the nutrient solution, and the problem of spilling the nutrient solution can also be effectively avoided.
[0046] As a preferred embodiment, the tip of the nasointestinal tube 5 is provided with an arc-shaped head 501, and a through hole is formed on the arc-shaped head 501, which is connected to the lumen of the nasointestinal tube 5. The arc-shaped head 501 can reduce the friction between the nasointestinal tube 5 and the stomach wall, esophagus, etc., facilitates rapid insertion, and can also improve the comfort of the patient.
[0047] Optionally, a sealing plug is provided on the gas injection pipe 503, and the side wall of the gas injection pipe 503 and the sealing plug are connected by a rubber belt, the rubber belt has good flexibility, and the sealing plug includes a circular plate and a rubber plug, the rubber plug is a cylinder, the circular plate is a wooden plate, the rubber plug is fixedly mounted on the circular plate, and the rubber plug and the circular plate are coaxially arranged, one end of the rubber belt is bonded to the outer wall of the gas injection pipe 503, and the other end thereof is bonded to the side of the circular plate. When not in use, the gas injection pipe 503 is sealed by the sealing plug to prevent external dust from entering the gas injection pipe 503.
[0048] This handheld visual gastroenteroscopy is more suitable for bedside catheterization of critically ill patients. It is simpler to operate, has a higher success rate for nasoenteric tube placement, makes enteral nutrition easier for critically ill patients, shortens catheterization time, reduces the pain of patients during catheterization, is low in cost, and reduces the economic burden on patients.
[0049] In the description of the present invention, it should be noted that the terms "upper" and "lower" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.
[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A handheld visual gastroenteroscopy, characterized in that: The device comprises an operating rod (1), an imager (3), a gastroscope tube (2) and a nasointestinal tube, wherein the operating rod (1) is connected to one end of the gastroscope tube (2) via a joint (101), and a connection interface (102) is provided on the operating rod (1); The imager (3) is electrically connected to the operating rod (1) via a connection interface (102); A lens (4) and a light source are provided at one end of the gastroscope tube (2) away from the connector (101); The gastroscope tube (2) is used to be inserted into the nasoenteric tube (5).
2. A handheld visual gastroenteroscopy according to claim 1, characterized in that: The operating rod (1) comprises a base and a top shell, the base and the top shell are fixedly connected, a mounting hole is provided on a side surface of the base, and the joint (101) is mounted in the mounting hole.
3. A handheld visual gastroenteroscopy according to claim 2, characterized in that: The upper surface of the top shell is provided with a hole for the connection interface (102) to pass through.
4. A handheld visual gastroenteroscopy according to claim 2, characterized in that: The base and the top shell are fixed together by screws (103).
5. The handheld visual gastroenteroscopy according to claim 1, characterized in that: The gastroscope tube (2) is sleeved with a serpentine tube.
6. The handheld visual gastroenteroscopy according to claim 1, characterized in that: The imager (3) comprises a display screen (301) and a knob (302); the display screen (301) is used to display an image captured by the lens (4); and the knob (302) is used to control the direction of the lens (4).
7. The handheld visual gastroenteroscopy according to claim 5, characterized in that: The nasointestinal tube (5) comprises a feeding port (502) and an air injection tube (503); the feeding port (502) is installed at the tail end of the nasointestinal tube (5); an air inlet is provided on the side wall of the tail end of the nasointestinal tube (5); one end of the air injection tube (503) is connected to the air inlet.
8. The handheld visual gastroenteroscopy according to claim 7, characterized in that: The head end of the nasointestinal tube (5) is provided with an arc-shaped head (501), and a through hole is opened on the arc-shaped head (501), and the through hole is connected to the lumen of the nasointestinal tube (5).
9. The handheld visual gastroenteroscopy according to claim 8, characterized in that: A sealing plug is provided on the gas injection pipe (503), and the sealing plug is used to seal the opening of the gas injection pipe (503).
10. The handheld visual gastroenteroscopy according to claim 1, characterized in that: The lower surface of the imager (3) is provided with a connection port for use with the connection interface (102).