Puncture needle for endoscope

Abstract

This utility model relates to the field of puncture needle technology and discloses an endoscope for puncture needles, including a connecting tube. A puncture mechanism is fixedly connected to the left side of the connecting tube, and an endoscope mechanism is slidably connected inside the connecting tube. A quick-release mechanism is fixedly connected to the top of the connecting tube. The endoscope mechanism includes an endoscope tube, the outside of which contacts the left side of the connecting tube. A Luer male connector is fixedly connected to the left side of the endoscope tube, and an ultra-fine endoscope tube is fixedly connected to the left side of the endoscope tube. A slot is provided at the top of the Luer male connector, and an observation component is provided at the top of the connecting tube. In this utility model, the doctor can observe the image through the eyepiece and goggles, accurately determine the puncture position and direction, perform precise puncture, and avoid accidental injury to other tissues and organs, thereby improving the safety and reliability of the surgery.

Description

Technical Field

[0001] This utility model relates to the field of puncture needle technology, and in particular to an endoscope for puncture needles. Background Technology

[0002] A puncture needle is a widely used instrument in the medical field, primarily used to insert into human tissues or organs to obtain tissue samples, extract body fluids, or administer drugs. It typically consists of a hollow needle tube and a core. The hollow tube facilitates the extraction or injection of substances, while the core is inserted to seal the lumen or assist in puncture when needed. Beyond routine procedures like obtaining tissue samples, extracting body fluids, and administering drugs, the puncture needle is also a crucial tool for establishing surgical pathways for many medical devices. For example, in laparoscopic and arthroscopic surgeries, the puncture needle creates a channel on the body surface, allowing instruments to smoothly enter body cavities or joint cavities, providing surgeons with a clear view and operational space. During catheter insertion, the puncture needle first paves the way, ensuring the catheter accurately reaches the designated site. Endoscopic surgical instruments also rely on the pathway established by the puncture needle to precisely reach the lesion site for surgical operations, thereby achieving minimally invasive and precise treatment, reducing patient trauma and pain, and improving treatment outcomes.

[0003] An endoscope is a medical device used for internal examination and treatment of the human body. It typically consists of a thin, flexible tube, a light source, and an imaging system. The front end of the tube is equipped with a camera and lighting equipment, which can clearly display the internal condition of the human body on an external display screen. By operating the endoscope, doctors can go deep into various cavities and organs of the human body, such as the digestive tract, respiratory tract, and urinary tract, to directly observe internal lesions, such as inflammation, ulcers, and tumors.

[0004] However, most existing puncture needles are inserted blindly during clinical surgery. Even if important areas are supported by ultrasound or CT imaging, experienced physicians still need to operate based on past experience and intuition, which leads to the inability to achieve precise puncture and efficiently avoid puncturable tissues. Therefore, an endoscope is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an endoscope for puncture needles, which aims to improve the problem that some puncture needles in the prior art cannot perform precise punctures during the puncture process.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an endoscope for puncture needles, comprising a connecting tube, a puncture mechanism fixedly connected to the left side of the connecting tube, an endoscope mechanism slidably connected inside the connecting tube, and a quick-release mechanism fixedly connected to the top of the connecting tube. The endoscope mechanism includes an endoscope tube, the outside of which contacts the left side of the connecting tube. A Luer male connector is fixedly connected to the left side of the endoscope tube, and an ultra-fine endoscope tube is fixedly connected to the left side of the inside of the endoscope tube. A slot is provided at the top of the Luer male connector, and an observation component is provided at the top of the connecting tube.

[0007] The above technical solution uses a connecting tube as a hub, with the puncture mechanism connected to the left, the endoscope mechanism sliding inside, and a quick-release mechanism connected to the top, thus constructing a basic architecture for the coordinated operation of all components and providing support for subsequent puncture and endoscopic observation operations.

[0008] As a further description of the above technical solution: The observation assembly includes a light receiving tube, the bottom of which is fixedly connected to the top right side of the connecting tube, and an eyepiece cover is fixedly connected to the right side of the endoscope tube.

[0009] The above technical solution involves a light inlet tube that guides light, which then illuminates the observation area at the tip of the ultra-fine endoscope. The eyepiece and goggles are used to observe the images transmitted through the ultra-fine endoscope. Together, these two methods enable clear observation of the needle tip.

[0010] As a further description of the above technical solution: The puncture mechanism includes a Luer head, the right side of which is fixedly connected to the left side of the connecting tube, and the left side of which is fixedly connected to a puncture needle.

[0011] The above technical solution involves inserting a puncture needle through the skin into the body cavity during surgery to create a channel for subsequent operations, while the Luer head serves to stabilize the connection and transmit force.

[0012] As a further description of the above technical solution: The quick-release mechanism includes a fixing sleeve, the bottom of which is fixedly connected to the top of the connecting tube. A slide rod is slidably connected inside the fixing sleeve, a fixing ring is fixedly connected to the outside of the slide rod, a spring is sleeved on the outside of the slide rod, and a pull plate is fixedly connected to the top of the slide rod.

[0013] Through the above technical solution: when installing the endoscope mechanism, the slide rod is locked into the slot of the Luer male head under the action of the spring force; when disassembling, the pull plate is pulled to compress the spring and make the slide rod disengage from the slot, thereby realizing the quick installation and disassembly of the endoscope mechanism.

[0014] As a further description of the above technical solution: The ultra-fine endoscope is externally slidably connected to the inside of the puncture needle, and the Luer male head is externally slidably connected to the inside of the connecting tube.

[0015] The above technical solution allows for the following: during surgical procedures, once the puncture needle is inserted into the human body, the endoscope mechanism inserts the connecting tube through the Luer male head, and the ultra-fine endoscope slides into the puncture needle, providing conditions for observing the tip of the puncture needle and ensuring a smooth observation process.

[0016] As a further description of the above technical solution: The slide rod is externally slidably connected to the inside of the slot, and the slide rod is externally slidably connected to the inside of the connecting tube.

[0017] The above technical solution allows for the following: when installing the endoscope mechanism, the slide rod is engaged in the slot at the top of the Luer male head and locked by the spring force to prevent the endoscope mechanism from accidentally sliding inside the connecting tube. When disassembling, the slide rod slides out of the slot to ensure that the endoscope mechanism can be easily removed.

[0018] As a further description of the above technical solution: The outer part of the fixing ring is slidably connected to the inside of the fixing sleeve, and the bottom of the pull plate is in contact with the top of the fixing sleeve.

[0019] The above technical solution involves the fixed ring moving with the slide rod. When installing the endoscope mechanism, it pushes the slide rod into the slot. When disassembling, it pulls the pull plate to compress the fixed ring spring, causing the slide rod to disengage from the slot, thus ensuring the stable operation of the quick-release mechanism.

[0020] As a further description of the above technical solution: One end of the spring is fixedly connected to the inner top side of the fixed sleeve, and the other end of the spring is fixedly connected to the top of the fixed ring.

[0021] Through the above technical solution: when installing the endoscope mechanism, the spring extends and pushes the fixing ring, causing the slide rod to engage in the slot, thus achieving automatic locking of the endoscope mechanism. When disassembling, the pull plate is pulled to compress the spring, storing elastic potential energy, which provides power for the slide rod to engage in the slot again during the next installation.

[0022] This utility model has the following beneficial effects: 1. In this invention, during the surgical procedure, after the puncture needle is inserted into the human cavity through the skin, the endoscope tube and the ultra-fine endoscope tube work together to capture images of the human tissue at the tip of the puncture needle. The light-receiving tube efficiently introduces external light, providing sufficient illumination for the ultra-fine endoscope tube, allowing the doctor to clearly see the specific situation at the tip of the puncture needle. The doctor observes the image through the eyepiece and goggles, enabling accurate determination of the puncture location and direction, and precise puncture, avoiding accidental damage to other tissues and organs, thereby improving the safety and reliability of the surgery.

[0023] 2. In this utility model, during installation, the Luer male endoscope is inserted into the connecting tube. The groove on the Luer male endoscope cooperates with the slide rod. The slide rod slides in the fixing sleeve and is locked into the groove. The spring force is used to lock the endoscope. The operation is simple and quick, ensuring that the endoscope is stably connected to the puncture mechanism. During disassembly, the pull plate is pulled, the slide rod is disengaged from the groove, the spring is compressed and stores elastic potential energy, and then the endoscope can be easily removed. This allows for timely replacement or adjustment of the endoscope during the operation according to actual needs, improving the efficiency of the surgical operation. Attached Figure Description

[0024] Figure 1 This is a three-dimensional view of an endoscope for a puncture needle proposed in this utility model; Figure 2 This is a schematic diagram of the Luer male head structure of an endoscope for puncture needles proposed in this utility model; Figure 3 This is a schematic diagram of the connecting tube structure of an endoscope for puncture needles proposed in this utility model; Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0025] Legend: 1. Connecting tube; 2. Puncture mechanism; 21. Luer female head; 22. Puncture needle; 3. Endoscope mechanism; 31. Endoscope tube; 32. Luer male head; 33. Ultra-fine endoscope tube; 34. Slot; 35. Observation assembly; 351. Light receiving tube; 352. Eyepiece eyecup; 4. Quick release mechanism; 41. Fixing sleeve; 42. Slide rod; 43. Fixing ring; 44. Spring; 45. Pull plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figure 1 and Figure 3This utility model provides an embodiment of an endoscope for puncture needles, including a connector 1. The connector 1 serves as a connection and support in the entire device. A puncture mechanism 2 is fixedly connected to the left side of the connector 1. The puncture mechanism 2 includes a Luer head 21, which is an important structure for connecting the puncture mechanism 2 with the connector 1 and the endoscope mechanism 3. It has a standard Luer interface structure. The right side of the Luer head 21 is fixedly connected to the left side of the connector 1. A puncture needle tube 22 is fixedly connected to the left side of the Luer head 21. The puncture needle tube 22 is the component that directly acts on the human body for puncture. It is made of high-strength, high-toughness, and biocompatible medical metal material. During the puncture process, the puncture... The needle 22 is inserted into the human body cavity through the skin to open a channel for the subsequent entry of the ultra-fine endoscope 33. The endoscope mechanism 3 is slidably connected inside the connecting tube 1, and the quick-release mechanism 4 is fixedly connected to the top of the connecting tube 1. The endoscope mechanism 3 includes an endoscope tube 31. After the endoscope tube 31 is inserted into the connecting tube 1, the two fit tightly together to prevent external light and impurities from entering. The outside of the endoscope tube 31 contacts the left side of the connecting tube 1. The left side of the endoscope tube 31 is fixedly connected to a Luer male connector 32. The outside of the Luer male connector 32 is slidably connected inside the connecting tube 1. The Luer male connector 32 and the Luer female connector 21 cooperate with each other. Its structure conforms to the standard Luer interface specification and has good sealing and connection stability. Specifically, during the surgery, the puncture needle 22 is made of high-strength, biocompatible medical metal material and is inserted into the human cavity through the skin to open a channel for subsequent operations. The endoscope tube 31 is inserted into the connecting tube 1 and fits tightly to prevent external interference. The Luer male head 32 cooperates with the Luer female head 21 of the puncture mechanism 2, and with the standard Luer interface specification, a good seal and stable connection are achieved. All structures of the entire device work together. After the puncture needle 22 completes the puncture and opens the channel, the endoscope mechanism 3 can be smoothly connected, laying the foundation for subsequent observation and other operations and ensuring the smooth progress of the puncture process.

[0028] Reference Figure 1 and Figure 2An ultra-fine endoscope tube 33 is fixedly connected to the left side of the endoscope tube 31. The ultra-fine endoscope tube 33 is slidably connected to the inside of the puncture needle tube 22. The front end of the ultra-fine endoscope tube 33 is equipped with a high-definition lens, which can capture images of human tissue at the tip of the puncture needle tube 22 and transmit the images to the observation component 35 through internal optical fibers or electronic circuits, providing the doctor with a clear field of view and helping the doctor to accurately determine the puncture position and direction. The top of the Luer male head 32 has a slot 34. In the locked state, the slot 34 is tightly engaged with the slide rod 42. With the help of the spring force of the spring 44, the Luer male head 32 is prevented from accidentally sliding or falling off in the connecting tube 1, ensuring the endoscope. The stability of the connection between mechanism 3 and puncture mechanism 2 ensures that the ultra-fine endoscope tube 33 can work stably during puncture, providing doctors with continuous and accurate image information. The top of the connecting tube 1 is provided with an observation component 35, which includes a light-receiving tube 351. The light-receiving tube 351 is made of optical material with high light transmittance, which can efficiently introduce external light and provide sufficient illumination for the ultra-fine endoscope tube 33. The bottom of the light-receiving tube 351 is fixedly connected to the top right side of the connecting tube 1. The right side of the endoscope tube 31 is fixedly connected with an eyepiece eyecup 352. The function of the eyepiece eyecup 352 is to provide doctors with a comfortable observation environment and prevent external light from interfering with the observation effect. Specifically, the high-definition lens at the front end of the ultra-fine endoscope 33 is responsible for capturing images of human tissue at the tip of the puncture needle 22, which are then transmitted to the observation component 35 via internal optical fibers or electronic circuitry. The slot 34 at the top of the Luer male head 32 is tightly engaged with the slide bar 42 in the quick-release mechanism 4. Relying on the elasticity of the spring 44, the connection between the endoscope mechanism 3 and the puncture mechanism 2 is stabilized, ensuring the stable operation of the ultra-fine endoscope 33 and continuously providing accurate images for the doctor. The light tube 351 is made of high-transmittance optical material, which efficiently introduces external light and provides sufficient illumination for the ultra-fine endoscope 33. The eyepiece eyecup 352 not only creates a comfortable observation environment for the doctor but also blocks external light interference, ultimately helping the doctor obtain a clear field of vision through the eyepiece eyecup 352, accurately determine the puncture position and direction, and improve the accuracy and safety of the puncture operation.

[0029] Reference Figure 1 , Figure 3 and Figure 4The quick-release mechanism 4 includes a fixed sleeve 41, the bottom of which is fixedly connected to the top of the connecting tube 1. A slide rod 42 is slidably connected inside the fixed sleeve 41, providing a sliding track for the slide rod 42. The slide rod 42 is slidably connected outside to the inside of a slot 34, allowing it to accurately engage with the slot 34 and lock the endoscope mechanism 3. A fixed ring 43 is fixedly connected outside the slide rod 42, and its outer surface is slidably connected inside the fixed sleeve 41. When the pull plate 45 is pulled to disengage the slide rod 42 from the slot 34, the fixed ring 43 compresses the spring 44, storing elastic potential energy. So that when the endoscope mechanism 3 is installed again, the spring 44 can quickly regain its elasticity and push the slide rod 42 to be inserted into the slot 34 again. The slide rod 42 is fitted with a spring 44. One end of the spring 44 is fixedly connected to the top side of the inner side of the fixing sleeve 41, and the other end of the spring 44 is fixedly connected to the top of the fixing ring 43. When the endoscope mechanism 3 needs to be disassembled, the pull plate 45 is pulled to make the slide rod 42 disengage from the slot 34. The spring 44 is compressed and stores elastic potential energy. The top of the slide rod 42 is fixedly connected to the pull plate 45. The bottom of the pull plate 45 is in contact with the top of the fixing sleeve 41. The pull plate 45 adopts a large-area flat plate design, which makes it convenient for doctors to pull with their fingers or tools. Specifically, during disassembly, the doctor pulls the large, easy-to-operate flat pull plate 45, which causes the slide rod 42 to disengage from the slot 34. At this time, the fixing ring 43 compresses the spring 44 to store elastic potential energy, so that the spring 44 can recover its elasticity during the next installation and push the slide rod 42 to re-enter the slot 34. This enables the endoscope mechanism 3 to be quickly disassembled and reinstalled, improving the convenience and efficiency of the surgical operation.

[0030] Working principle: During the operation, the puncture needle 22 of the puncture mechanism 2 is first inserted into the human cavity through the skin. The puncture needle 22 can be inserted into the body. The Luer male head 32 of the endoscope mechanism 3 is inserted into the connecting tube 1. The slot 34 on the Luer male head 32 cooperates with the slide rod 42. The slide rod 42 slides in the fixing sleeve 41 and is locked into the slot 34. The spring force of the spring 44 can achieve locking. At this time, the ultra-fine endoscope tube 33 slides into the puncture needle 22. The light receiving tube 351 of the observation component 35 is used to introduce light. The doctor observes through the eyepiece 352. When disassembly is required, the pull plate 45 is pulled, and the slide rod 42 is disengaged from the slot 34. At this time, the spring 44 will be compressed, and then the endoscope mechanism 3 can be removed. The whole process realizes visualization of the puncture process, improving the safety and accuracy of the operation.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An endoscope for puncture needles, comprising a connecting tube (1), characterized in that: A puncture mechanism (2) is fixedly connected to the left side of the connecting tube (1), an endoscope mechanism (3) is slidably connected inside the connecting tube (1), and a quick-release mechanism (4) is fixedly connected to the top of the connecting tube (1). The endoscope mechanism (3) includes an endoscope tube (31), the outside of which is in contact with the left side of the connecting tube (1), a Luer male connector (32) is fixedly connected to the left side of the endoscope tube (31), an ultra-fine endoscope tube (33) is fixedly connected to the left side of the inside of the endoscope tube (31), a slot (34) is provided on the top of the Luer male connector (32), and an observation component (35) is provided on the top of the connecting tube (1).

2. The endoscope for puncture needles according to claim 1, characterized in that: The observation assembly (35) includes a light receiver tube (351), the bottom of which is fixedly connected to the top right side of the connecting tube (1), and an eyepiece cover (352) is fixedly connected to the right side of the endoscope tube (31).

3. The endoscope for puncture needles according to claim 1, characterized in that: The puncture mechanism (2) includes a Luer head (21), the right side of which is fixedly connected to the left side of the connecting tube (1), and the left side of which is fixedly connected to a puncture needle tube (22).

4. The endoscope for puncture needles according to claim 1, characterized in that: The quick-release mechanism (4) includes a fixed sleeve (41), the bottom of which is fixedly connected to the top of the connecting tube (1), a sliding rod (42) is slidably connected inside the fixed sleeve (41), a fixed ring (43) is fixedly connected outside the sliding rod (42), a spring (44) is sleeved on the outside of the sliding rod (42), and a pull plate (45) is fixedly connected to the top of the sliding rod (42).

5. An endoscope for puncture needles according to claim 3, characterized in that: The outer side of the ultra-fine endoscope (33) is slidably connected to the inside of the puncture needle (22), and the outer side of the Luer male head (32) is slidably connected to the inside of the connecting tube (1).

6. An endoscope for puncture needles according to claim 4, characterized in that: The slide rod (42) is externally slidably connected to the inside of the slot (34), and the slide rod (42) is externally slidably connected to the inside of the connecting tube (1).

7. An endoscope for puncture needles according to claim 4, characterized in that: The outside of the fixing ring (43) is slidably connected to the inside of the fixing sleeve (41), and the bottom of the pull plate (45) is in contact with the top of the fixing sleeve (41).

8. An endoscope for puncture needles according to claim 4, characterized in that: One end of the spring (44) is fixedly connected to the inner top side of the fixed sleeve (41), and the other end of the spring (44) is fixedly connected to the top of the fixed ring (43).

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